Device and a method for cleaning interiors of receptacles and facilities

Abstract

An appliance and a method for removing deposits from interiors of receptacles or facilities by way of explosion technology. The appliance includes a supply device for providing an explosive mixture or its starting components, as well as a transport conduit that is connected to the supply device and serves for transporting explosive mixture to a cleaning location. The transport conduit is designed at least in sections as a transport hose.

Claims

1. An appliance for removing deposits in interiors of receptacles or facilities by way of explosion technology, comprising a supply device for providing at least two starting components, a transport conduit with a cleaning-side outlet opening that is connected to the supply device and serves to transport explosive mixture to a cleaning location, and a mixing unit for creating an explosive mixture from the at least two starting components, which are provided by the supply device, the mixing unit being arranged between the supply device and the transport conduit, the appliance further comprising an ignition device for controlled ignition of the explosive mixture, wherein the transport conduit is designed at least in a section or in sections as a transport hose which serves as a conduit extension between the mixing unit and the cleaning-side outlet opening, wherein the transport hose is constructed in a multilayered manner and comprises a first hose, which is pressure-resistant with regard to radially acting pressure forces in a transport channel of the transport conduit on igniting the explosive mixture, and an inner-lying second hose, which is surrounded by the first hose and is gas-impermeable.

2. The appliance according to claim 1, wherein the second, gas-impermeable hose forms the transport channel for the explosive mixture.

3. The appliance according to claim 1, wherein an annular cooling channel is formed between the first hose and the second hose.

4. The appliance according to claim 1, wherein the first hose is formed from metal.

5. The appliance according to claim 1, wherein the first hose is braided.

6. The appliance according to claim 1, wherein the second hose is formed from or comprises plastic.

7. The appliance according to claim 1, wherein the second hose is a corrugated metal hose.

8. The appliance according to claim 1, wherein the transport hose comprises an inner-lying third hose that is surrounded by the second hose and whose inner wall has a reduced unevenness compared to the second hose.

9. The appliance according to claim 8, wherein the third hose is a stripwound hose.

10. The appliance according to claim 8, wherein the transport hose comprises an outer-lying fourth hose that surrounds the first hose and that is liquid-impermeable, wherein an annular cooling channel for a cooling medium is formed between the first hose and the fourth hose.

11. The appliance according to claim 10, wherein the fourth hose is a corrugated hose.

12. The appliance according to claim 10, wherein the fourth hose is a plastic hose.

13. The appliance according to claim 12, wherein the plastic hose consists of or comprises an ethylene propylene diene monomer rubber (EPDM) elastomer.

14. The appliance according to claim 1, wherein an inlet device with metering fittings for controlled metered introduction of the starting components into the transport hose is arranged between the supply device and the transport hose.

15. The appliance according to claim 14, wherein the inlet device or the mixing unit comprises at least one temperature sensor that is arranged in a mixing zone and measures a temperature in the mixing zone.

16. The appliance according to claim 14, wherein the inlet device or the mixing unit comprises at least one pressure sensor for measuring a pressure upstream of the mixing zone, said pressure sensor being arranged upstream of the mixing zone in a flow direction.

17. The appliance according to claim 1, wherein the appliance comprises a metering fitting for the metered introduction of the at least two starting components, wherein the metering fitting is contained in a metering unit or in the inlet device or mixing unit.

18. The appliance according to claim 14, wherein the inlet device or the mixing unit comprises metering fittings that are arranged on the feed conduits of the starting components upstream of a mixing zone in a flow direction.

19. The appliance according to claim 14, wherein the inlet device or mixing unit comprises check valves that are arranged on the feed conduits of the starting components upstream of a mixing zone in a flow direction.

20. The appliance according to claim 1, wherein the supply device comprises a metering unit for the metered provision of the at least two starting components of the explosive mixture.

21. The appliance according to claim 1, wherein a hose coupling for tool-free connection of a connection component is arranged at a cleaning-side end of the transport hose.

22. The appliance according to claim 1, wherein the transport hose at a feed side is rotatably connected to the mixing unit of the appliance via a rotary joint connection.

23. The appliance according to claim 1, wherein a guide tube is arranged at a cleaning-side end of the transport hose.

24. The appliance according to claim 1, wherein a container connection element for connecting a container envelope is arranged at a cleaning-side end of the transport hose.

25. The appliance according to claim 1, wherein one or more positioning hoses are connected directly or indirectly to a cleaning-side end of the transport hose.

26. The appliance according to claim 1, wherein the appliance comprises a flex-tube, by way of which the transport hose can be led through passages in the interior of the receptacle or facility to be cleaned.

27. The appliance according to claim 1, wherein the appliance comprises an introduction tube, by way of which the transport hose can be introduced via an opening into the interior of the receptacle or facility to be cleaned, wherein a horizontal introduction depth of the transport hose into the interior can be determined via the insert position of the introduction tube.

28. A method for removing deposits from of receptacles and facilities by way of explosion technology with an appliance according to the claim 1, comprising the steps of: providing an explosive mixture in the transport conduit, and transporting the explosive mixture to a cleaning-side outlet opening of the transport conduit; controlled ignition of the explosive mixture via an ignition device, wherein the explosive mixture is brought to explode.

29. The method according to claim 28, further comprising the steps of: attaching a container envelope to the cleaning-side outlet opening of the transport conduit; filling the container envelope with the explosive mixture that exits through the cleaning-side outlet opening of the transport conduit.

30. The method according to claim 28, further comprising the steps of: outflow of the explosive mixture through at least one cleaning-side outlet opening of the transport conduit into the interior of the receptacle or facility to be cleaned and formation of a cloud from the explosive mixture.

31. The method according to claim 28, further comprising the steps of: positioning several positioning hoses each with a container envelope, which is attached to the positioning hose, at different locations in the interior of the receptacle or facility to be cleaned; parallel or sequential connecting of the positioning hoses onto the transport conduit in a direct or indirect manner; charging the connected positioning hoses in a sequential sequence with explosive mixture and supplying the container envelopes with explosive mixture and, by way of this, producing several cleaning explosions in a sequential sequence.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The subject-matter of the invention is hereinafter described in more detail way of preferred embodiment examples which are represented in the accompanying drawings. In each case in a schematic manner are shown in:

(2) FIG. 1a: a cross-sectional view of a transport hose according to the invention;

(3) FIG. 1b: a cross-sectional view of the corrugated hose of a transport hose according to FIG. 1a;

(4) FIG. 1c: a detailed view of a transport hose according to FIG. 1a;

(5) FIG. 2: a cross-sectional view of a further embodiment of a transport hose with a cooling channel, according to the invention;

(6) FIG. 3a: a cross-section view of a further embodiment of a transport hose with a cooling channel, according to the invention;

(7) FIG. 3b: a lateral view of the transport hose according to FIG. 3a;

(8) FIG. 4: the feed-side region of a cleaning appliance according to the invention;

(9) FIG. 5a: the cleaning-side region of the cleaning appliance according to FIG. 4 according to a first configuration:

(10) FIG. 5b: the cleaning-side region of the cleaning appliance according to FIG. 4 according to a second configuration;

(11) FIG. 6: an embodiment variant of the cleaning appliance according to the invention;

(12) FIG. 7: a further embodiment variant of the cleaning appliance according to the invention;

(13) FIG. 8: a further embodiment variant of the cleaning appliance according to the invention;

(14) FIG. 9a: a further embodiment variant of a cleaning appliance according to the invention;

(15) FIG. 9b: a modification of the embodiment variant according to FIG. 9a;

(16) FIG. 10a: a further embodiment variant of the cleaning appliance according to the invention;

(17) FIG. 10b: a detailed view of the cleaning appliance according to FIG. 10a from the region of the flex-tube;

(18) FIG. 11: a further embodiment variant of the cleaning appliance according to the invention;

(19) FIG. 12: a lateral view of a further embodiment variant of an introduction tube;

(20) FIG. 13: a cross-sectional view of a further embodiment variant of a cleaning appliance according to the invention;

(21) FIG. 14a: a further embodiment variant of a cleaning appliance according to the invention;

(22) FIG. 14b: a cross-sectional view of the distribution unit according to the embodiment variant according to FIG. 14a.

DETAILED DESCRIPTION OF THE INVENTION

(23) Basically, the parts that are the same in the figures are provided with the same reference numerals. Certain features are not represented in the figures for a better understanding of the invention. The described embodiment examples are exemplary of the subject-matter of the invention and have no limiting effect.

(24) The transport hose 1.1, which is represented in FIG. 1a to 1c, includes an inner-lying stripwound hose 6 with a fold profile of metal. The stripwound hose 6 forms the transport channel 3 for the explosive mixture. The stripwound hose 6 forms a smooth inner wall that is only interrupted by a spirally running groove, along which the fold profiles mesh into one another. The loose insertion of the fold profiles into one another gives the stripwound hose 6 the necessary flexibility. However, the stripwound hose 6 is also not gas-tight due to this.

(25) A corrugated hose 5 of metal, which (concentrically) surrounds the stripwound hose 6, ensures the necessary gas-sealedness. The corrugated design of the corrugated hose 5 provides this with the necessary flexibility.

(26) A hose braiding 4 of metal surrounds the corrugated hose 5 for accommodating radially outwardly acting pressure forces as arise during the ignition of the explosive mixture. Apart from radial pressure forces, the hose braiding 4 also accommodates axially acting, i.e., along the longitudinal axis L, tensile forces. The hose braiding 4 prevents the stripwound hose 6 or the corrugated hose 5 from being deformed by the mentioned pressure forces and tensile forces.

(27) According to FIG. 1a, the transport hose 1.1 is provided at the cleaning side with a hose coupling 2, which permits the tool-free connection of connection components onto the transport hose 1.1.

(28) The described transport hose 1.1 represents a basic embodiment that includes no separate cooling channel and therefore can only be cooled from the inside by way of leading a cooling medium into the transport channel 3.

(29) Since the transport hose 1.1 consists completely of metal, this is accordingly heat resistant or thermally durable and furthermore is extremely robust with respect to harsh environmental conditions as prevail in the interior of the receptacle or facility which is to be cleaned, particularly if the cleaning is effected during the operation of the facility.

(30) FIG. 2 shows an embodiment with a cooling channel 39, the embodiment being based on the basic embodiment according to FIGS. 1a-1c. The transport hose 1.2, analogously to the basic embodiment according to FIG. 1a-1c, includes an inner-lying stripwound hose 6, a corrugated hose 5 that (concentrically) surrounds the stripwound hose 6, as well as a hose braiding 4 which (concentrically) surrounds the corrugated hose 5. The description concerning the FIGS. 1a-1c is referred to for further details.

(31) In contrast to the basic embodiment according to FIG. 1a-1c, the transport hose 1.2 includes a further, outer-lying hose 7.1 of ethylene propylene diene monomer rubber (EPDM) that (concentrically) surrounds the hose braiding 4. The mentioned hose 7.1 is liquid-tight.

(32) Since the outer-lying hose of EPDM has elastic characteristics inherent of the material and is flexible on account of this, this does not need to have any special outer geometry in contrast to the stripwound hose or corrugated hose.

(33) An annular cooling channel 39 is formed between the outer-lying hose 7.1 and the hose braiding 4, in which cooling channel a cooling medium 9 can be transported from the feed-side end of the transport hose 1.2 onto its cleaning-side end.

(34) A mixing unit 12, which likewise forms a transport channel as well as a cooling channel that are connected to the transport channel 3 and to the cooling channel 39 of the transport hose 1.2, connects onto the transport hose 1.2 at the supply side (only indicated schematically).

(35) Since the outer-lying hose 7.1 of EPDM is only heat resistant or thermally durable to a limited extent, this embodiment of a transport hose 1.2 is also not suitable for introduction into a the hot interior of the receptacle or facility to be cleaned, particularly when this is in operation.

(36) The mentioned transport hose 1.2 is particularly used for application as a conduit extension outside the interior which is to be cleaned, or for applications in suitably cooled interiors of receptacles or facilities that are to be cleaned.

(37) A further embodiment of a transport hose 1.3, which is likewise based on the basic embodiment according to FIG. 1a-1c and forms a cooling channel 39, is represented in the FIGS. 3a-3b.

(38) The embodiment according to FIG. 3a-3b differs from the embodiment according to FIG. 2 in that the outer-lying hose 7.2 does not consist of plastic but is a corrugated hose of metal. The outer-lying corrugated hose 7.2 can be constructed in the same manner as the corrugated hose 5, which surrounds the stripwound hose 6 and ensures the necessary gas-sealedness. The corrugated hose 7.2 is accordingly liquid-tight.

(39) Accordingly, an annular cooling channel 39 is likewise formed between the outer-lying corrugated hose 7.2 and the hose braiding 4.

(40) Since this transport hose 1.3 with the cooling channel 39 consists completely of metal, this is accordingly heat-resistant and thermally durable and can be applied for hot applications in hot interiors of receptacles or facilities which are to be cleaned, the facilities, e.g., being in operation.

(41) A mixing device 12, which likewise forms a transport channel as well as a cooling channel that are connected to the transport channel 3 and the cooling channel 39 of the transport hose 1.3, connects onto the transport hose 1.3 at the supply side (only indicated schematically).

(42) A construction as is typical for a (cooled) transport hose 1.3, which is to be introduced into the interior of a receptacle or container to be cleaned, is represented in FIG. 3b.

(43) A container connection element 38, on which a container envelope 8 is attached connects to the cleaning-side end of the transport hose 1.3. The container connection element 38 includes a transport channel with a cleaning-side outlet opening, via which the explosive mixture is led from the transport hose 1.3 into the container envelope 8.

(44) The transport hose 1.3 together with the container envelope 8 is introduced into the interior of a receptacle or container to be cleaned. However, the container envelope 8 is not filled with the explosive mixture until in the interior of the receptacle or container to be cleaned, the mixture being fed through the transport channel 3 in the flow direction S.

(45) The cooling channel 39 at the cleaning-side end of the transport hose 1.3 includes an exit opening, from which the cooling medium 9 exits and cools a connection component such as container connection element 38 or the container envelope 8.

(46) FIG. 4 shows the appliance 10.1 according to the invention, from the region of the supply device 37. The supply device 37 includes a metering unit 21 with metering containers 22, 23 for the supply of a mixing unit 12, which is connected downstream onto the metering unit 21, with a first and a second starting component for creating the explosive mixture. The first and the second starting component are fed to the mixing unit 12 via supply conduits 17, 18. The metering containers 22, 23 in turn are supplied with the respective starting components from gas bottles 25, 26, which are not integrated in the metering unit 21, via supply conduits 27, 28.

(47) The metering unit 21 is designed as a mobile device on rollers, which is to simplify the handling of the appliance 10.1 in a facility.

(48) Furthermore, the metering unit 21 is externally supplied with water as well as compressed air via respective supply conduits 29, 30. These component are necessary for creating the cooling medium.

(49) The metering unit furthermore also includes a connection lead 36 to an external electrically source for the supply of electricity.

(50) Furthermore, a control device 24 for the control of the cleaning method is arranged in the metering unit 21. Amongst other things, the introduction of the starting components into the mixing unit 12 is controlled via the control device 24.

(51) A mixing unit 12 connects downstream onto the metering unit 21. A first component in the form of a gaseous fuel, such as ethylene is introduced into a first feed channel 14 of the mixing unit 12 via a first supply conduit 17.

(52) A second component in the form of a gaseous oxidant such as oxygen is introduced into a second feed channel 15 of the mixing unit 12 via a second supply conduit 18. The two feed channels 14, 15 run out in a mixing zone 13, in which the two components are mixed into an explosive, gaseous mixture.

(53) A transport hose 1.2, which is connected onto the mixing unit 12 via a rotary joint 11, is connected downstream onto the mixing unit 12. The explosive mixture is led from the mixing zone 13 via a transport channel into the transport channel 3 of the transport hose 1.2 which connects thereto.

(54) In the present embodiment example, the second feed channel 15 is laid annularly around the first feed channel 14. However, this arrangement is not absolutely necessary.

(55) The mixing unit 12 moreover includes an ignition device 31 with a component that is effective in ignition, the component being arranged in the mixing zone or subsequently to the mixing zone. The ignition device 31 is connected to the metering unit 21 or to the associated control device 24 via a connection lead 32. The ignition device 21 or the ignition procedure is controlled via the control device 24.

(56) The mixing unit 12 furthermore includes a cooling channel 16 thatis laid annularly around the mixing zone 13 or around the transport channel of the mixing unit 12 which connects thereto.

(57) The cooling channel 16 is connected to the cooling channel 39 of the transport hose 1.2 via the rotary joint connection 11.

(58) The cooling medium 9 consists of water and air, which are each fed into the cooling channel 16 from the metering unit 21 via separate supply conduits 19, 20. The feed of the cooling medium 9 is likewise controlled via the control device 24.

(59) Transport hoses, which include no cooling channel 39 for introducing a cooling medium 9, can also be connected, even if the mixing unit 12 includes a cooling device. Simply no cooling medium 9 is fed into the mixing unit 12 in this case.

(60) A check valve 33, which is to prevent the introduction of pressure shocks upstream from the mixing unit 12 into the supply conduits 17, 18 of the starting components, is each arranged on the two feed channels 14, 15.

(61) Furthermore, a temperatures sensor 35, which is to detect peculiarities in the temperature course during a cleaning cycle, is arranged in the mixing zone.

(62) A pressure sensor 34 is arranged in the first feed channel 14 upstream of the mixing zone 13 in the flow direction S for the same propose. This is to detect peculiarities in the pressure course during a cleaning cycle. Such peculiarities occur for example in the case of so-called back-ignitions.

(63) Since pressure sensors are extremely sensitive, this is arranged in the feed conduit 14 where any occurring pressure shocks are weakened compared to the mixing zone 13 and cannot therefore damage the pressure sensor 34.

(64) FIGS. 5a and 5b show the appliance 10.1 according to the invention from the cleaning-side region, in two configurations.

(65) The appliance 10.1 in both cases includes a transport hose 1.2, which is connected at the supply side to a mixing unit 12 (see FIG. 4).

(66) According to a first configuration according to FIG. 5a, a container connection element 38, e.g., in the form of a connection nozzle, on which a container envelope 8 is fastened connects onto the cleaning-side end of the transport hose 1.2. This configuration was already described within the framework of FIG. 3b. The respective description is referred to.

(67) According to this configuration, the transport hose 1.2 together with the container envelope 8 is introduced into the interior of a receptacle or facility which is to be cleaned. The container envelope 8, however, is not filled with the explosive mixture that is fed through the transport channel 3 in the flow direction S, until in the interior.

(68) According to a second configuration according to FIG. 5b, a guide tube 42, which is designed as a hand part, connects onto the cleaning-side end of the transport hose 1.2.

(69) The guide tube 42 includes a transport channel, via which the explosive mixture is led from the transport hose 1.3 into the container envelope 8. The guide tube 42 includes a container connection element 43 at the cleaning-side end, the element including an outlet opening and on which a container envelope 8 is fastened.

(70) According to this configuration, it is only the guide tube 42 with the container envelope 8, but not the transport hose 1.2 that is introduced into the interior of a receptacle or facility to be cleaned. However, the container envelope 8 is not filled with the explosive mixture that is fed through the transport channel 3 in the flow direction S, until in the interior.

(71) The guide tube 42 and the container connection element 38 are connected to the transport hose 1.2 via a hose coupling 44 in each of the two configurations. A guide tube 42 or a container connection element 38 can be fastened to the hose end in this manner.

(72) The cooling channel 39 of the transport hose 1.2 is connected to the transport channel of the guide tube 42 via a hose coupling, at the cleaning-side end of the transport hose 1.3. The cooling medium is, accordingly, led from the transport tube 1.2 through the guide tube 42 and leaves this via a cleaning-side exit opening. The exiting cooling medium 9 cools the container envelope 8 and possibly the container connection element 43 on the guide tube 42.

(73) If the appliance 10.1, which is described in the FIGS. 4 and 5a-b, is operated with a cooling medium 9, then a transport hose 1.2 according to FIG. 2 or a transport hose 1.3 according to FIG. 3a-3b can be used for this.

(74) However, the appliance 10.1 can also be operated without a cooling medium 9, so that a transport hose 1.1 according to FIG. 1a-1c can be used.

(75) FIG. 6 shows an embodiment variant of an appliance 10.2 according to the invention. The appliance 10.2 has the feed-side construction of the appliance 10.1 according to FIG. 4 as well as the cleaning-side construction of the appliance according to FIG. 5b. A repetition of the description of the appliance is forgone here, but rather the associated description parts concerning FIGS. 4 and 5b are referred to.

(76) As is derived from FIG. 6, only a guide tube 42, which is designed as a hand part, together with a container envelope 8, is introduced into the interior 52.1 for cleaning the interior 52.1 of the facility 51.1.

(77) The transport hose 1.1, which has the function of a conduit extension, is arranged outside the interior to be cleaned and is to bridge the distance between the metering unit 21 or the mixing unit 12 and the working opening in the facility. Accordingly, the transport hose 1.1 does not need to be cooled. Despite this, apart from the uncooled transport hose 1.1 according to FIGS. 1a-1c, a cooled transport hose 1.2, 1.3 can also be used, in particular for cooling the container envelope 8 given hot applications, as is described in FIGS. 2 and 3a-3b. Since the handling of the cooled transport hose 1.2 according to FIG. 2 is simpler compared to the cooled transport hose 1.3 according to FIG. 3a-3b, it is the transport hose 1.2 according to FIG. 2 that tends to be used in this configuration.

(78) FIG. 7 shows a further embodiment variant of an appliance 10.3 according to the invention. The appliance 10.3 has the feed-side construction of the appliance 10.1 according to FIG. 4 as well as the cleaning-side construction of the appliance according to FIG. 5a. Here, a repetition of the description of the appliance is foregone and instead the associated description parts concerning FIGS. 4 and 5a are referred to.

(79) As can be derived from FIG. 7, the transport hose 1.3 together with a container envelope 8 is introduced into the interior 52.2 that is to be cleaned, for cleaning the interior 52.2. The transport hose 1.3 is designed according to FIGS. 3a-3b and includes a cooling. Here, a repetition of the description of the transport hose 1.3 is foregone and instead the associated description parts concerning FIG. 3a-3b are referred to.

(80) If, however, the interior 52.2 to be cleaned has cooled down because of the facility not being in operation due to the cleaning, then an uncooled transport hose 1.1 according to the FIGS. 1a-1c can also be used apart from the cooled transport hose 1.3 according to FIGS. 3a-3b. Furthermore, in this case a transport hose 2 according to FIG. 2 can likewise be applied. This also applies to the embodiment examples according to FIG. 8, 9, 10a-10b and 11.

(81) The appliance 10.3 differs from the appliance 10.2 according to FIG. 6 by the absent hand part in the form of a guide tube 42, by way of which the container envelope 8 can be positioned in the interior 52.2.

(82) Instead, a pull cable system 80.1 with a pull cable 81 and a deflection roller 82 are provided, by way of which system the transport hose with the container envelope 8 can be pulled up or lowered from above into the position to be cleaned, from outside the facility 51.2. The deflection roller is arranged outside the facility 51.2 and is arranged above the interior 52.2 to be cleaned. The pull cable 81 is led through an opening above the interior 52.2 to be cleaned, into this interior 52.2.

(83) FIG. 8 shows a further embodiment variant of an appliance 10.4 according to the invention. The appliance 10.4 differs from the appliance 10.3 according to FIG. 7 merely in the construction of the pull cable system 80.2.

(84) The pull cable system 80.2 includes a deflection roller 82, which is arranged in the roof region of the interior 52.3, as well as a deflection roller 82, which is arranged on the base of the interior 52.3, and these permit the pull cable 81 to be led through an opening in the lower region of the interior 52.2. The transport hose 1.3 with the container envelope 8 (not yet expanded here) can be pulled up and lowered in the interior 52.2 through the lower opening by way of the pull cable 81, which is deflected via the two deflection rollers 82, thanks to these deflection rollers 82.

(85) FIG. 9a shows a further embodiment variant of an appliance 10.5 according to the invention. The appliance 10.5 likewise differs from the appliance 10.3 and 10.4 according to FIGS. 7 and 8 merely in the construction of the pull cable system 80.3.

(86) The basic construction of the pull cable system 80.3 corresponds to the pull cable system 80.2 according to FIG. 8. Here, in contrast to FIG. 8, the deflection roller 82 which is arranged in the roof region of the interior 52.4 is not assembled in a fixed manner. In contrast, the mentioned deflection roller 82 is fastened on an essentially horizontally aligned guide cable 83 and can be moved horizontally with this.

(87) The guide cable 83 can likewise be operated from the lower opening, just as the pull cable 81.

(88) The transport hose 1.3 with the container envelope 8 can therefore be pulled up and lowered in the interior 52 of the facility 51.4 through the lower opening via the pull cable 81. The transport hose 1.3 with the container envelope 8 can additionally be horizontally displaced by way of the guide cable 83. In this manner, it is possible with the transport hose 1.3 to reach every location in the interior 52.4 to be cleaned.

(89) Of course, differently constructed pull cable systems are also possible. The application of pulleys as a special form of a pull cable system is also possible.

(90) An alternative solution to the pull cable system according to FIG. 9a is represented in FIG. 9b. Instead of a deflection roller, which is arranged on the floor of the interior 52.4, the appliance 10.6 includes an introduction aid, which is designed as a flex-tube 70.1, has a curvature of 90° and by way of which the transport hose 1.3 is deflected vertically upward from a horizontal introduction direction. The construction of a flex-tube 70.1 and its characteristics are described in detail in the general description part which is referred to.

(91) The appliances 10.7-10.8 according to the FIGS. 10a-10b, 11 and 12 each include an introduction aid for introducing the transport hose 1.3 into the interior 52.5, 52.6 of the facility 51.5, 51.6. In this context, the embodiment of the transport hose 1.3 is of lesser significance.

(92) FIGS. 10a-10b show an introduction aid, which is designed as a flex-tube 70.2. The construction of a flex-tube 70.2 and its characteristics are described in detail in the general description part which is referred to.

(93) According to FIG. 10a-10b, the transport hose 1.3 is led from above through an intermediate space 53 into the interior 52.5 of the facility 51.5 to be cleaned. The transport hose 1.3 cannot be lowered vertically into the interior 52.5 since the through-openings are offset horizontally to one another.

(94) In this case, a flex-tube 70.2 is applied, the flex-tube being assembled once in the intermediate space 53 between the two through-openings. The flex-tube 70.2 must possibly be guided along passages in the intermediate space 53, so that this has an arcuate course.

(95) The transport hose 1.3 can now be introduced or lowered into the interior 52.3 and pulled out again, through the intermediate space 53 via the flex-tube 70.2, without much effort, for cleaning the interior 52.5.

(96) The flex-tube 70.2 has the advantage that the transport hose 1.3 can be withdrawn out of the interior 52.5 and introduced back into this again through the flex-tube 70.2 any number of times for replacing the container envelope 8 for each cleaning cycle; this being the case without an assistant stationed in the intermediate space 53 having to manually lead the transport hose 1.3 each time.

(97) According to the embodiment according to FIGS. 11 and 12, a transport hose 1.3 with the container envelope 8 is introduced laterally through a lateral opening into the interior 52.6 of the facility 51.6 that is to be cleaned. The horizontal introduction length however is limited given configurations without a guide tube, as are shown in the FIGS. 3b and 5a. Furthermore, there is the risk of an abrupt bending of the transport hose 1.3 on introduction.

(98) An introduction tube 60.1 is applied in this case, the introduction tube being pushed with a section through the opening into the interior 52.6. The construction of an introduction tube 60.1 and its characteristics are described in detail in the general description part which is referred to.

(99) The transport hose 1.3 is pushed through the closed guide channel 63 of the introduction tube 60.1 and is led horizontally through this. The horizontal introduction depth of the transport hose 1.3 can now be determined by the insert position of the introduction tube 60.1.

(100) The introduction tube 60.1 at is cleaning-side opening moreover includes a downwardly directed, arcuate rest 61 for the transport hose 1.3. The arcuate rest 61 forms an abrupt-bend protection for the transport hose 1.3.

(101) The introduction tube 60.2, which is represented in FIG. 12, is characterised by a cooling device for cooling the introduction tube 60.2. The introduction tube 60.2 forms a cooling channel 64, which is arranged annularly around the guide channel 63 and which is fed with a cooling medium 9 via a connection nozzle 62. The cooling medium 9 can flow out of an exit opening at the cleaning side. A closed cooling circuit can also be provided.

(102) The embodiment of an appliance according to the invention, shown in FIG. 13, includes an inlet device or mixing unit 101, which is only shown in part. The construction of the inlet device or mixing unit 101—with the exception of the cooling medium feed—can be constructed analogously to the embodiment example according to FIG. 4.

(103) The inlet device or the mixing unit 101 includes an inlet nozzle 85 for introducing a cooling medium 103 into the transport channel 93. The inlet nozzle 95 is arranged downstream of the ignition device (not shown).

(104) A transport hose 91 connects onto the inlet device or mixing unit 101 via a hose coupling with a rotary joint 105. The transport hose 91 includes a hose seal 97 towards the hose coupling 105.

(105) A guide tube 100 is connected onto the transport hose 91 via a hose coupling 106 at the cleaning-side end of the transport hose 91. The guide tube forms an outlet opening for the explosive gas mixture. The transport hose 91 further includes a hose seal 98 ahead of the hose coupling 106.

(106) The transport hose 91 includes an inner-lying plastic hose 92, which forms the transport channel 93. The plastic hose 92 is surrounded by a corrugated hose 94 of metal, such as steel, or plastic, which together form an annular cooling channel 107. The corrugated hose 94 in turn is surrounded by a protective hose 104, e.g., in the form of a hose braiding.

(107) A cooling medium can be fed into the cooling channel 107 via an inlet nozzle 96 on the transport hose 91 and can be transported in the direction of the cleaning-side end of the cleaning appliance.

(108) A check valve 99, via which the cooling medium can be led into the transport channel 93, is arranged on the transport hose 91 in the region of the cleaning-side hose coupling 98. The cooling medium 102 therefore gets into the inside of the guide tube 100 in the region of the cleanings-side hose coupling 98 and is capable of cooling this guide tube from the inside.

(109) Instead of the connection nozzle 95, the cooling medium 103 can also be led into the transport channel 93 at the inlet device or at the mixing unit 101, analogously to the embodiment example according to FIG. 4.

(110) The embodiment variant of a cleaning appliance according to the invention, with a supply device or metering unit 202, an inlet device or mixing unit 203 and a transport hose 204, which is shown in FIGS. 14a and 14b, is particularly applied in waste heat boilers 200 with horizontally running pipe bundles 206, as are arranged, for example, downstream of a gas turbine or a combustion engine in a gas-and-steam combination power station or a cogeneration power station. Such waste heat boilers 200 have the task of utilising hot exhaust gases from a process which takes place upstream, for generating steam or, less commonly, for the recovery of hot water.

(111) However, the present embodiment variant is also very generally applicable to interiors of receptacles and facilities which are to be cleaned.

(112) Waste heat boilers 200 with horizontal pipe bundles 206, when being cleaned, have the disadvantage that the transport hose with the container envelope, in contrast to the case with vertically running pipe bundles, cannot be lowered downwards from above and therefore cannot be positioned at different locations in the interior (see, e.g., FIG. 10b).

(113) In order to completely and thoroughly clean the horizontal pipe bundles, the cleaning lance or the lance body or the transport hose with the container envelope, with each cleaning step must be positioned anew in the interior of the waste heat boiler 200 at the different cleaning locations between two pipe bundles 206, manually through a lateral access opening.

(114) For this, the operating personnel must climb into the interior 201 of the waste heat boiler 200 anew each time and position the cleaning appliance with the container envelope at a new location for the purpose of carrying out a further cleaning step.

(115) This is extremely awkward and difficult as well as time-consuming. Added to this is the fact that each cleaning step, i.e. explosion entails a formation of dust. The operating personnel cannot therefore immediately undertake the next cleaning step, but must wait until the dust formation has settled down before accessing into the interior 201 of the waste heat boiler 200. The cleaning is additionally delayed by way of this.

(116) According to a present embodiment variant, a distribution unit 205 is now connected onto the cleaning-side end of the transport hose 204 via a coupling, such as a hose coupling.

(117) The distribution unit 205 includes a plurality of outlets, here five and six thereof, for the parallel connection of positioning hoses 207a-207f A positioning hose 207a-207f is releasably connected onto an outlet each via a coupling, such as a hose coupling.

(118) The couplings that are disclosed within the framework of this embodiment variant in particular are designed as a quick-coupling.

(119) Whereas the transport hose 204 with the distribution unit 205 is arranged outside the receptacle or the waste heat boiler 200 to be cleaned, the positioning hoses 207a-207f are led into the receptacle interior 201. A container envelope 209a-209f is each connected to the positioning hoses 207a-207f, in particular to their cleaning-side ends. This can be effected via a connection component.

(120) The container envelopes 209a-209f on the individual positioning hoses 207a-207f can now be positioned at different locations within the receptacle interior 201, in particular at different locations between two horizontal pipe bundles of a waste heat boiler 200.

(121) The positioning hoses 207a-207f can be designed differently long for this.

(122) A switchable valve 208a-208f is assigned in the distribution unit 205 to each positioning hose 207a-207f which is connected to the distribution unit 205. In this manner, explosive mixture can be led into each positioning hose 207a-207f independently of the other positioning hoses 207a-207f, as well as a container envelope 209a-209f supplied or filled with explosive mixture. The explosive mixture is fed from the transport hose 204 to the distribution unit 205. The valves 208a-208f are switchable via a control device.

(123) The described cleaning appliance now permits several positioning hoses 207a-207f each with a connected container envelope 209a-209f to be positioned at different locations in the receptacle interior 201 in one sequence.

(124) The container envelopes 209a-209f, subsequently to the positioning of the positioning hoses 207a-207f with the container envelopes 209a-209f are supplied and filled with explosive mixture via the positioning hoses 207a-207f and are made to explode in a controlled manner, in a sequential sequence.

(125) A series of cleaning steps is accordingly carried out in a sequential sequence. Herein, it is not longer necessary to enter the receptacle interior 201 between the individual cleaning steps.

(126) However, it is also conceivable for several positioning hoses or even all positioning hoses to be simultaneously charged with explosive mixture and accordingly also for several or all container envelopes 209a-209f to be simultaneously supplied or filled with an explosive mixture and made to explode.

(127) In this case, several or all positioning hoses can also be charged with explosive mixture via a common, controllable valve in the distribution unit.

(128) According to an alternative embodiment, one makes do without the application of a distribution unit. In contrast, the positioning hoses are successively, i.e., sequentially, manually coupled to the transport hose via a single coupling and each decoupled from this again after carrying out the cleaning step, for carrying out a sequential sequence of cleaning steps.