Station

Abstract

A gas station for delivery of gas to appliances, in particular in a building, comprising a casing (12) and a gas regulation device (13) with several components comprising a gas regulator 14 and one filter (32), wherein the gas regulation device (13) is mounted or mountable within the casing (12), wherein the casing (12) comprises a ground plate (10) and a cover element (11) being securable or secured onto the ground plate (10), wherein the ground plate (10) is configured for mounting to a wall or to an external mounting post (50).

Claims

1. A gas station for delivery of gas to appliances, in particular in a building, the gas station comprising a casing and a gas regulation device with several components comprising at least a gas regulator and one filter, wherein the gas regulation device is mounted or mountable within the casing, wherein the casing comprises a ground plate and a cover element being securable or secured onto the ground plate, wherein the ground plate is configured for mounting to a wall or to an external mounting post.

2. The gas station of claim 1, characterised in that the ground plate is provided as attachment basis for the gas regulation device, which comprises a gas regulator and/or at least one filter, in particular at least one cartridge filter, and/or at least one valve and/or at least one manometer and/or at least one dielectric link insulation, so that the gas regulation device may be preassembled on the ground plate.

3. The gas station of claim 1, characterised in that the ground plate comprises at least one fastening element, in particular at least on hole, in particular at least two or at least three holes, for fastening, in particular screwing, the gas station on the wall or on the external mounting post.

4. The gas station of claim 1, characterised in that the cover element is securely attached and locked, or securely attachable and lockable, onto the ground plate.

5. The gas station of claim 1, characterised in that the ground plate is made of an insulating material, in particular is made of plastic, in order to insulate the gas regulation device from electric charges which might otherwise be transmitted from the wall or the external mounting post onto the gas regulation device.

6. The gas station of claim 1, characterised in that the ground plate comprises at least one spacer, so that the ground plate attached to the wall or to the external mounting post in such a way that a predefined gap is maintained between the ground plate and the wall or between the ground plate and that the ground plate comprises ventilation means in order to guide any leakage gas in the gap which is provided between the ground plate and the wall or between the ground plate and the external mounting post.

7. The gas station of claim 1, characterized in that the ground plate is defined as a multifunctional element providing one or more of the following functions: attachment of the gas regulation device thereon, so that the gas regulation device may be preassembled on the ground plate, attachment to the wall or to the mounting post, attachment of the cover element in such a way that the cover element is securely locked thereon, serves while being made of an insulating material as an insulating shield against charges, which might otherwise be transmitted from the wall or from the mounting post onto the gas regulation device, has ventilation means for any leakage gas to be guided out of the casing.

8. The gas station of claim 1, characterised in that the cover element 14 has a box-shape or a bowl-shape, so that when the cover element is detached from the ground plate, the gas regulation device with its components is accessible from four sides, namely from a front side, from a top side, from a left side and from a right side.

9. The gas station of claim 1, characterised in that the casing comprises an alternative or additional ventilation opening between the cover element and the ground plate.

10. The gas station of claim 1, characterised in that the gas regulation device comprises a gas regulator and at least one filter as main components and that each component has a standard flange portion towards the following component which has a similar flange portion, so that each of the main components can easily be demounted, serviced or exchanged.

11. The gas station of claim 1, characterised in that an inlet valve and/or an outlet valve has a standard flange towards its next components of the gas regulation device, such that inlet valve and/or outlet valve can easily be exchanged.

12. The gas station of claim 1, characterised in that an edge portion of the cover element and a corresponding edge portion of the ground plate comprise complementary protrusions and recesses, respectively, for positioning and/or holding the cover element on the ground plate.

13. The gas station of claim 1, characterised in that a connection cover element is provided, for covering a connection portion of a gas delivery line.

Description

[0019] The following figures show an embodiment of the invention. Hereby show:

[0020] FIG. 1: A cross-sectional view of the gas station;

[0021] FIG. 2: A front view of the gas station with a removed cover element;

[0022] FIG. 3: An oblique view of a ground plate;

[0023] FIG. 4: A first oblique view of a cover element;

[0024] FIG. 5: A second oblique view of the cover element;

[0025] FIG. 6: A portion of the gas station in a first position;

[0026] FIG. 7: The portion of FIG. 6 in a second position;

[0027] FIG. 8: An enlarged portion of FIG. 7;

[0028] FIG. 9: The enlarged portion of FIG. 8 in a second position;

[0029] FIG. 10: A perspective view of the gas station mounted on a mounting post; and

[0030] FIG. 11: A cross-sectional view of the gas station mounted to a mounting post.

[0031] FIG. 1 shows a cross-sectional view of the gas station. The gas station comprises a ground plate 10 and a cover element 11 forming a casing 12. Within the casing 12, a regulation device 13 is located, the regulation device 13 comprises (inter alia) a gas regulator 14, several valves (of which an inner safety valve is located at reference sign 15 and an isolation valve is located at reference sign 16a). At the connection portion 17a, a delivery line (not shown) may be connected. A dashed line indicates the position of a wall, to which the gas station may be mounted.

[0032] Ventilation means 35 are provided by means of apertures in the ground plate 10. The ventilation means 35 may be provided as holes or slits in the ground plate 10. While the location of the ventilation means 35 on the ground plate 10 is not particularly limited, it is preferable to provide the ventilation means 35 in an upper part of the casing 12, so that uprising gas can exit the casing 12 without accumulating in a top part thereof.

[0033] FIG. 2 shows a front view of the gas station with the cover element 11 removed. It can be seen that the regulation device 13 may further comprise a general valve 16b and a cartridge filter 32 (optionally with test point; not shown). Further shown is a dielectric link insulation 33 connecting the valves 16a and 16b. A further connection portion 17b in addition to the connection portion 17a may be provided to establish a second connection, e.g. a gas inlet or outlet. The connection portions 17a and 17b are therefore provided with standard flanges, so that an easy connection with gas inlet or outlet pipes can be accomplished. If a change in gas tube standards occurs, e.g., when switching from metal tubes for gas delivery to polyethylene tubes for gas delivery, it is conceivable that connecting elements of the tubes might also be changed. In this case, it will not be necessary to replace the complete gas station, but merely the corresponding connection portions 17a and/or 17b.

[0034] The different components of the regulation device 13 are connected at appropriately dimensioned flange portions 36, 37. With this layout, a flexible design of the regulation device 13 can be achieved. Individual components may be easily exchanged by disconnecting them at the flange portions 36, 37. This also allows for the mounting of additional or alternative components such as a manometer. Also, it is conceivable that the cartridge filter 32 may have to be exchanged regularly after a predetermined time period, e.g. after two years. Also, the gas regulator 14 may have to be exchanged after a predetermined time period, e.g. after five years. With the modular layout of the regulation device 13, such operations may be reliably and simply performed.

[0035] The regulation device 13 is attached to the ground plate 10 with several attachment means 40a, 40b, 40c, as shown in FIGS. 1 and 2 and thus mounted within the casing 12. This allows a (partial) preassembly of the regulation device 13 in the factory, so that the (partially) preassembled regulation device 13 may be mounted within the casing 12 upon installation. Also, it is possible to exchange single or multiple components after installation. The ground plate 10 secures the attachment of the regulation device 13 in the casing 12.

[0036] From FIG. 2, it can be appreciated that the regulation device 13 is accessible from at least four sides when removing the cover element 11. This further alleviates the maintenance of the regulation device 13, since all components are easily accessible from multiple sides.

[0037] The ground plate 10 is made of an insulating material, so it acts as insulator, preventing electric charges from reaching the regulation device 13. For the same reason, the cover element 11 may be manufactured of an insulating material like plastic as well. As can be seen in FIGS. 1 and 2, the ground plate 10 is (generally) flat, whereas the cover element 11 has a box-shape or a bowl shape, respectively. The ground plate 10 may thus serve as a connecting element for mounting the gas station to a wall.

[0038] In FIG. 3, the ground plate 10 is shown in an oblique view. The ground plate 10 has an inner side 18 facing a cover element 11 and an outer side 19 facing the wall (in use). Furthermore, the ground plate 10 comprises three mounting screw holes 20a, 20b and 20c into which screws (not shown in FIG. 3) can be inserted in order to attach the ground plate 10 (and hence the gas station) to a wall. Further holes 21 or recesses, respectively, are shown. These recesses/holes 21 can be used for mounting the regulation device 13 onto the ground plate 10. Similarly, a flap 22 defines a general support structure for supporting the regulation device 13 and/or the cover element 11 and/or another element. A hook 23 allows the cover element 11 shown in FIGS. 4 and 5 to be hooked in the ground plate 10 (to be described later).

[0039] Moreover, the ground plate 10 comprises projections 24 with recesses 25 in between that can be engaged with (rib-like) projections 26 (see FIG. 5) of the cover element 11. The projections 24, the recesses 25 and the projections 26 allow an accurate positioning and reliable mounting of the cover element 11 on the ground plate 10.

[0040] In FIGS. 6 and 7, the mounting and locking procedure of the cover element 11 on the ground plate 10, is described. In FIG. 6, the cover element 11 is moved towards the ground plate 10. A locking element 27 is in the unlocked state. According to FIG. 8, the cover element 11 and the ground plate 10 are in engagement. However, the locking element 27 is still in the unlocked state.

[0041] As can be seen in FIG. 6, the (rib-like) projections 26 define guiding surfaces which simplify the connection process when the cover element 11 is moved towards the ground plate 10.

[0042] FIG. 8 shows an enlarged portion of FIG. 7 (the locking element 27 being in an unlocked state). As can be seen in FIG. 9 by rotating a key in a key hole 28, the locking element 27 is transferred to its locked state so that the cover element 11 cannot be removed from the ground plate 10 (without using the key for the key hole 28).

[0043] In FIG. 7, a ventilation hole 29 (ventilation slot) can be seen which is defined by an edge portion 30 of the ground plate 10 and a corresponding (inner) edge portion 31 of the cover element. This ventilation hole 29 ensures that gas that may be leaking from a defect regulation device 13 may not be accumulated in the casing 12. The ventilation hole 29 may be provided additionally or alternatively to the ventilation means 35 shown in FIG. 1. The ventilation hole 29 may have a width of 1-2 mm.

[0044] Ventilation of the casing 12 can be further improved by attaching the ground plate 10 to the wall in a way that a gap between the wall and the ground plate 10 remains. In order to achieve this, spacers 41 may be provided on the outer side 19 of the ground plate, so that a gap remains between the ground plate 10 and the wall when the gas station is attached to the wall.

[0045] In the description above, it has been assumed that the gas station will be attached to a wall. It is also possible to mount the gas station on a mounting post 50. Such a configuration is shown in FIG. 10. The gas station is shown with attached cover element 11, being mounted to a mounting post 50. Tubes for gas delivery (that are connected to the connection portions 17a and 17b of the regulation device 13 inside the casing 12) are enclosed in a connection cover element 51 that is provided below the gas station. The mounting post 50 may be provided on a sidewalk, near a building to which gas is to be provided.

[0046] FIG. 11 shows a sectional view of the gas-station in FIG. 10. For improved ventilation, spacers 40 are provided between the ground plate 10 of the gas station and the mounting post 50.

[0047] From FIG. 10 it can be seen that the casing 12 of the gas station has a bigger width than the mounting post 50, so that the casing 12 protrudes beyond the mounting post 50. Also, the front part of the cover element 11 protrudes beyond the mounting post 50, as shown in FIG. 11. Thus, an overall compact design of the gas station is realized.

[0048] The gas station and/or the casing may have a length and/or height and/or width of at least 8 cm, in particular at least 12 cm and/or not more than 30 cm, preferably not more than 20 cm.

[0049] The gas station and/or the casing may have a volume of at least 500 cm.sup.3, in particular at least 1700 cm.sup.3 and/or not more than 2700 cm.sup.3, preferably not more than 8000 cm.sup.3.

[0050] The gas station according to this invention may be used as a regulation device for the supply of gas to individual households, where a typical gas flow of 1.5 m.sup.3/h may be expected. However, it is also possible to employ the gas station according to this invention for establishing a gas supply to houses with several apartments, or larger commercial accommodations. It may be conceivable to apply the gas station for supplying gas to 50-1000 apartments. The gas station may be designed to provide flow rates of 25-100 m.sup.3/h.

REFERENCE NUMERALS

[0051] 10 Ground plate [0052] 11 Cover element [0053] 12 Casing [0054] 13 Regulation device [0055] 14 Gas regulator [0056] 15 Safety valve [0057] 16a Valve [0058] 16b Valve [0059] 17a Connection portion [0060] 17b Connection portion [0061] 18 Inner side [0062] 19 Outer side [0063] 20a Mounting screw hole [0064] 20b Mounting screw hole [0065] 20c Mounting screw hole [0066] 21 Recess/hole [0067] 22 Flap [0068] 23 Hook [0069] 24 Projection [0070] 25 Recess [0071] 26 Projection [0072] 27 Locking element [0073] 28 Key hole [0074] 29 Ventilation hole [0075] 30 Edge portion [0076] 31 Edge portion [0077] 32 Cartridge filter [0078] 33 Dielectric link insulation [0079] 34 Gap [0080] 35 Ventilation means [0081] 36 Flange portion [0082] 37 Flange portion [0083] 38 Flange [0084] 39 Flange [0085] 40a Attachment means [0086] 40b Attachment means [0087] 40c Attachment means [0088] 41 Spacer [0089] 50 Mounting post [0090] 51 Connection cover element