DEVICE FOR CURING PIPELINE INNER RESIN LININGS

Abstract

The invention relates to a device for curing inner linings of pipelines introduced into them in the form of lining tubes impregnated with a resin. The device includes metal three-piece monolithic body (52) both of the two extreme cylindrical portions (53 and 54) of which have a diameter (1) larger than the diameter (1) of its middle cylindrical portion (56), whereas all components of the body are connected with each other detachably, and both of the two extreme portions (53 and 54) are provided on their cylindrical circumferences with a dozen or so longitudinal ribs (65) each distributed symmetrically on them along the circumferences and having an identical thickness (U) and height (V), and moreover, the ribs are provided with circumferential slit-shaped recesses (66) situated opposite from each other and oriented perpendicularly to horizontal axis (67) of the device forming thus profiles functioning as radiators (68) composed of individual segments (69) separated from each other with elongated recesses with an dilation angle () and with crosswise circumferential slit-shaped recesses (66), whereas the middle portion (56) of the body on its circumference with diameter (1) has also a dozen or so flat facets-chords (74) evenly distributed along the circumference and separated from each other with radially oriented slit-shaped recesses (75) ending on solid core (64) of this portion of the body (52) in which power leads (80) are guided supplying electric current to LEDs (79) and to the front camera unit (40), said recesses forming profiled figures functioning as radiators (76) flat facets (74) of which are connected detachably with plastic strip-shaped plates (78) with LEDs (79) installed in them, and moreover, both of the two extreme portions (53 and 54) of the body (52) are provided with round axial holes (61) ending with bevelled chamfers (62) forming annular slots (63) situated between them and the solid core (64) of the middle portion (56) of the body, whereas the axial holes (61) are coaxial with holes (59) of both of the two profiled shields (58) connected detachably with outer faces of both of the two extreme portions (53 and 54) of the body (52) of the device.

Claims

1-5. (canceled)

6. A device for curing pipeline inner linings with the use of a lining tube containing a resin-based device cured by electromagnetic radiation, the device comprising: a polyhedral metal body flat faces of which are equipped with LEDs generating such radiation by emitting waves with wavelengths 200-500 nm to cure the resin-based device, wherein the body is provided with ribbed radiators to dissipate heat generated by the diodes, wherein faces of said radiators being covered with side shields equipped with a sensor to monitor temperature of the cured lining tube, with vehicle assemblies distributed evenly on their circumferences, rope eyelets, monitoring cameras, and leads supplying power to the LEDs characterised in that it has a metal three-piece monolithic body (52) both of the two extreme cylindrical portions (53 and 54) of which have a diameter (1) larger than the diameter (1) of its middle cylindrical portion (56), wherein all components of the body are connected with each other detachably, and both of the two extreme portions (53 and 54) are provided on their cylindrical circumferences with a dozen or so longitudinal ribs (65) each distributed symmetrically on them along the circumferences and having an identical thickness (U) and height (V), wherein the ribs are provided with circumferential slit-shaped recesses (66) situated opposite from each other and oriented perpendicularly to horizontal axis (67) of the device forming thus profiles functioning as radiators (68) composed of individual segments (69) separated from each other with elongated recesses with an dilation angle () and with crosswise circumferential slit-shaped recesses (66), wherein the middle portion (56) of the body on its circumference with diameter (1) has also a dozen or so flat facets-chords (74) evenly distributed along the circumference and separated from each other with radially oriented slit-shaped recesses (75) ending on solid core (64) of this portion of the body (52) in which power leads (80) are guided supplying electric current to LEDs (79) and to the front camera unit (40), said recesses forming profiled figures functioning as radiators (76) flat facets (74) of which are connected detachably with plastic strip-shaped plates (78) with LEDs (79) installed in them, and moreover, both of the two extreme portions (53 and 54) of the body (52) are provided with round axial holes (61) ending with bevelled chamfers (62) forming annular slots (63) situated between them and the solid core (64) of the middle portion (56) of the body, whereas the axial holes (61) are coaxial with holes (59) of both of the two profiled shields (58) connected detachably with outer faces of both of the two extreme portions (53 and 54) of the body (52) of the device.

7. The device according to claim 6, wherein outer faces of both of the two extreme portions (53 and 54) of the body (52) are connected detachably with profiled shields (58) which, on their outer surfaces, are provided with three recesses (71) in the form of isosceles trapeziums with open upper sides symmetrically distributed on circumferences of circles (70) forming thus three segments (72) on each of the shields, with a sensor (73) of temperature of the cured lining tube being fixed to bottom of one of the recesses and straight-through holes (59) provided in the shields on their symmetry axes extended with threaded sleeve connectors (60) protruding outside.

8. The device according to claim 6, wherein the plastic strip-shaped plates (78) with LEDs (79) installed in them have a length shorter than the length of the middle portion (56) of the body (52).

9. The device according to claim 6, including an assembly of a plurality of the devices in which sleeve connectors (60) of the profiled shields (58) are connected with each other detachably by means of connection sleeves (38), and moreover, the front sleeve connector (60) of the leading device in the assembly is provided with a blanking element (39) onto which a front camera unit (40) is screwed comprising a cylindrical-sleeve body (41) the face of which connected is with a profiled sleeve element (42) having a lid (43) provided with an axial hole (44) in which the face (45) of the front monitoring camera is mounted surrounded with a counterweight (46) and LEDs (47) arranged around the camera, whereas the connection sleeve (38) connected with the unit (48) of rear camera (51) is screwed onto the threaded sleeve connector (29) of the trailing device of the assembly, said unit being equipped with power supply connector (49) and LEDs (50).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The subject of the invention has been shown on drawings, of which

[0021] FIG. 1the first variant of embodiment of the device for curing resin lining with its body provided with transversely oriented radiator ribs, in a perspective view;

[0022] FIG. 2the same device in the front view;

[0023] FIG. 3the same device in the side view;

[0024] FIG. 4the same device in axial section along line GG;

[0025] FIG. 5the same device in cross-section along line HH;

[0026] FIG. 6the same device in cross-section along line KK;

[0027] FIG. 7the same device in axial section in a perspective view;

[0028] FIG. 8a working assembly comprising eight identical devices connected with each other by means of connection sleeves, ended at the front and at the end with units equipped with a front monitoring camera and a rear monitoring camera, respectively, in a perspective view;

[0029] FIG. 9an enlarged view of the same assembly as seen from the front side;

[0030] FIG. 10an enlarged view of the same assembly as seen from the front side;

[0031] FIG. 11the same assembly of eight devices in axial section along line MM; and

[0032] FIG. 12enlarged detail N of the assembly of eight devices.

DETAILED DESCRIPTION OF THE INVENTION

[0033] The device for curing pipeline inner resin linings and an assembly of such devices connected functionally with each other shown in FIGS. 1-12 comprises a three-piece body 52, two identical extreme portions 53 and 54 with diameter 1 of which are joined by means of bolts 55 with the middle portion 56 of the body with diameter 1 smaller than the diameter 1 of both of the two extreme portions to outer faces of which, by means of bolts 57, attached are profiled shields 58, equipped with rope eyelets 31 and vehicle assemblies 35, whereas both of the two extreme portions 53 and 54 of the body 52 are provided with round axial holes 61 ending with bevelled chamfers 62 forming annular slots 63 situated between them and the solid core 64 of the middle portion 56 of the body 52 constituting a continuation of axial holes 59 of the two shields and their threaded sleeve connectors 60.

[0034] Moreover, on cylindrical pitch circles of the extreme portions 53 and 54 of the body 52 there are fifteen longitudinal ribs 65 distributed symmetrically along the circles, i.e. with the pitch =24, with identical thickness U and height V equalling about 50% of length of the radius R2 of the extreme body portions, and moreover, all these longitudinal ribs 65 are provided with circumferential slit-shaped recesses 66 situated opposite from each other and oriented perpendicularly to horizontal axis 67 of the device forming thus profiles functioning as radiators 68 composed of individual segments 69 separated from each other with elongated recesses with an dilation angle and with crosswise circumferential slit-shaped recesses 66. Outer surfaces of the two identical shields 58 of the device are provided with three profiled recesses 71 symmetrically distributed on circumferences of circles 70 and having the shape of isosceles trapeziums with open upper sides forming thus three segments 72 on each of the shields, with a sensor (73) for controlling temperature of the cured lining tube (sleeve) being fixed to bottom of one of the recesses. Further, the segments of the two shields 58 are provided with rope eyelets and vehicle assemblies 35 connected with them, so that in rectangular recesses between the shields and upper portions of outer surfaces of portions 53 and 54 of the body 52 fixed are vertical legs 33 of angle bars 34 of vehicle assemblies 35 equipped with spherical rolling elements 36.

[0035] On the other hand, the middle portion 56 of the body 52 has twelve evenly distributed flat facets-chords 74 on its circumference with diameter 1 separated from each other with radially oriented slit-shaped recesses 75 ending on the solid core 64 of this body portion forming thus twelve profiled figures functioning as middle-portion radiators 76 to the flat facets 74 of which and on a portion of their length, attached by means of screws 77 are plastic strip-shaped plates 78 with LEDs 79 installed in them in two rows, five LEDs in each row, as a result of which there is 120 LEDs 79 installed in total on the whole circumference of middle portion of the body 52, the LEDs being supplied with electric current by means of electric leads 80 connected to them and guided from outside via straight-through holes 59 in shields 58. Further, annular slots 63 are formed between axial holes 61 of the extreme portions 53 and 54 of the body 52 and core 64 of the middle portion 56 of the body.

[0036] Depending on length and diameter of the cured pipeline lining, the curing is performed with the use of a single device shown in FIGS. 1-7 or few, preferably eight of such devices as shown in FIGS. 8-12. Sleeve connectors 60 of shields 58 are connected with each other by means of connection sleeves 38 screwed on them, whereas the threaded sleeve connector 60 of the leading device is connected, with a blanking element 39 with the front camera unit 40 screwed on it. The unit comprises a cylindrical-sleeve body 41, face of which is connected with a profiled sleeve element 42, onto the end of which screwed is a lid 43 with an axial hole 44 which houses the face of front monitoring camera 45 mounted inside the sleeve element and surrounded with a counterweight 46 keeping the camera in horizontal position and with LEDs 47 illuminating the field of view of the camera, whereas an axial hole provided in the cylindrical-sleeve body houses a rotary electric connector 81. Further, a connection sleeves 38 is screwed onto the threaded sleeve connector 29 of the trailing device with onto which in turn the rear camera unit 48 is screwed comprising rear camera 51 and equipped with connector 49 to supply power to LEDs 50 illuminating the field of view of the rear camera 51 as shown in FIGS. 9, 10, and 12.

[0037] In another example embodiment of the device according to the invention, LEDs 24 emitting electromagnetic radiation with wavelength 500 nm were used.

[0038] In yet another example embodiment of the device according to the invention, a working assembly is employed comprising twelve individual devices also connected by means of connection sleeves 38.

LEGEND

[0039] 1body [0040] 2body, extreme portion [0041] 3body, extreme portion [0042] 4body, middle portion [0043] 5flat facets-chords [0044] 6slit grooves [0045] 7horizontal axis [0046] 8, 8circular ducts [0047] 9profiled FIGS. [0048] 10rectangular grooves [0049] 11rounded bottoms of grooves [0050] 12ribs [0051] 13, 13trapezoidal FIGS. [0052] 14trapezoidal figures, wider sides [0053] 15, 15grooves [0054] 16, 16ribs [0055] 17radiators [0056] 18flat facets-chords [0057] 19slit grooves [0058] 20profiled FIGS. [0059] 21radiators [0060] 22screws [0061] 23plastic strip-shaped plates [0062] 24LEDs [0063] 25bolts [0064] 26profiled shields [0065] 27profiled shields, profiled segments [0066] 28straight-through holes [0067] 29sleeve connectors [0068] 30outer threads [0069] 31rope eyelets [0070] 32rectangular recesses in shields [0071] 33angle bar elements, vertical arms [0072] 34angle bar elements [0073] 35vehicle assemblies [0074] 36vehicle assemblies, spherical rolling elements [0075] 37power leads [0076] 38connection sleeves [0077] 39blanking element [0078] 40front camera unit [0079] 41front camera unit, cylindrical-sleeve body [0080] 42profiled sleeve element [0081] 43lid [0082] 44axial hole [0083] 45monitoring camera face [0084] 46counterweight [0085] 47front camera, illuminating LEDs [0086] 48rear camera unit [0087] 49power supply connector [0088] 50rear camera, illuminating LEDs [0089] 51rear camera [0090] 52three-piece body [0091] 53body, extreme portion [0092] 54body, extreme portion [0093] 55screws [0094] 56body, middle portion [0095] 57bolts [0096] 58profiled shields [0097] 59shields, axial holes [0098] 60threaded sleeve connectors [0099] 61body, extreme portions, axial holes [0100] 62bevelled chamfers [0101] 63annular slot [0102] 64body, middle portion, core [0103] 65ribs [0104] 66slit-shaped recesses [0105] 67horizontal axis [0106] 68radiators [0107] 69radiators, individual segments [0108] 70shield circle, circumference [0109] 71profiled recesses [0110] 72shield segments [0111] 73temperature sensor [0112] 74body, middle portion, flat facets [0113] 75slit-shaped recesses [0114] 76body, middle portion, radiators [0115] 77screws [0116] 78plastic strip-shaped plates [0117] 79LEDs [0118] 80electric leads [0119] 81rotary electric connector