Device for overhauling blind blocking plate in front of gas pipeline butterfly valve

Abstract

A device for overhauling a blocking blind plate in front of a butterfly valve of a gas pipeline comprises a pipeline body, the butterfly valve and a pipeline flange are installed on the pipeline body, a valve front supporting plate and a valve rear supporting plate are installed at the front end and the rear end of the outer side wall of the butterfly valve respectively, a placing plate is installed on the valve rear supporting plate, and a jack is arranged between the placing plate and the valve front supporting plate. And a blind plate sealing piece is arranged between the butterfly valve and the pipeline body. The device has the advantages that after the device is adopted, when a gas pipeline needs to be overhauled, the pipeline in front of the butterfly valve can be overhauled and blocked, normal gas use of a user behind the butterfly valve cannot be affected, the overhauling time can be effectively shortened, and the device is more practical and convenient to use.

Description

Technical Field

[0001] The utility model relates to gas pipeline maintenance equipment, in particular to a device for repairing and blocking a blind plate in front of a butterfly valve in a gas pipeline. Background Art

[0002] Gas pipelines are connected by pipes, pipe connectors, and valves, specifically pipes used to transport gas. Gas pipelines can age, break, or become damaged for various reasons, posing potential safety hazards. Therefore, regular inspection and maintenance of gas pipelines are crucial for ensuring household safety.

[0003] At present, when repairing its gas pipeline, see Figure 4 As shown, when a gas pipeline without a gate valve needs to be sealed, a butterfly valve and a pair of flanges are generally installed. When maintenance is needed after the butterfly valve, the butterfly valve is generally closed first to cut off the gas source, and then a blind plate is inserted into the flange behind the butterfly valve, resulting in maintenance and sealing before the butterfly valve of the ring network gas pipeline. The gas needs to be stopped after the butterfly valve, which not only affects the normal use of gas by users behind the butterfly valve, but also requires more purge of the gas pipeline behind the butterfly valve, which increases maintenance time and is relatively inconvenient. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies and defects in the existing technology and provide a device for repairing and blocking a blind plate in front of a butterfly valve in a gas pipeline. After adopting the device, when the gas pipeline needs to be repaired, the pipeline in front of the butterfly valve can be repaired and blocked, which not only does not affect the normal use of gas by users behind the butterfly valve, but also can effectively reduce the repair time, making it more practical and convenient.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a device for repairing and plugging a blind plate in front of a butterfly valve in a gas pipeline, which includes a pipeline body 5, on which a butterfly valve 2 and a pipeline flange 3 are installed, and a front valve support plate 9 and a rear valve support plate 6 are respectively installed at the front and rear ends of the outer wall of the butterfly valve 2, a placement plate 8 is installed on the rear valve support plate 6, and a jack 4 is provided between the placement plate 8 and the front valve support plate 9, and a blind plate seal 1 is installed between the butterfly valve 2 and the pipeline body 5.

[0006] Furthermore, an extension rod 7 for extending the placement plate 8 thereof is installed on the rear valve support plate 6 .

[0007] Furthermore, the placement plate 8 includes a supporting middle plate 82 , a mounting base plate 83 is installed at the bottom of the supporting middle plate 82 , and an anti-slip surface layer 81 is provided on the surface end of the supporting middle plate 82 .

[0008] Furthermore, the front-valve support plate 9 is provided with an anti-slip surface layer 81 .

[0009] Furthermore, the butterfly valve 2 and the pipeline body 5 are bolted together using bolts.

[0010] After adopting the above technical solution, the beneficial effect of the utility model is: after adopting this device, when the gas pipeline needs to be inspected and repaired, the pipeline in front of the butterfly valve can be inspected and sealed, which not only does not affect the normal use of gas by users behind the butterfly valve, but also can effectively reduce the maintenance time, which is more practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Figure 2 It is a schematic diagram of the use state of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the placement plate in the utility model.

[0015] Figure 4 It is a structural diagram of the prior art.

[0016] Explanation of the accompanying drawings: blind plate seal 1, butterfly valve 2, pipe flange 3, jack 4, pipe body 5, valve rear support plate 6, extension rod 7, placement plate 8, valve front support plate 9, anti-slip surface layer 81, support middle plate 82, installation base plate 83. DETAILED DESCRIPTION

[0017] See Figure 1-Figure 3 As shown, the technical solution adopted in this specific embodiment is: it includes a pipeline body 5, on which a butterfly valve 2 and a pipeline flange 3 are installed, and a front valve support plate 9 and a rear valve support plate 6 are respectively installed at the front and rear ends of the outer side wall of the butterfly valve 2, a placement plate 8 is installed on the rear valve support plate 6, and a jack 4 is provided between the placement plate 8 and the front valve support plate 9, and a blind plate seal 1 is installed between the butterfly valve 2 and the pipeline body 5.

[0018] More specifically, an extension rod 7 for extending the placement plate 8 thereof is installed on the rear valve support plate 6 .

[0019] More specifically, the placement plate 8 includes a supporting middle plate 82, a mounting base plate 83 mounted on the bottom of the supporting middle plate 82, and an anti-slip surface layer 81 provided on the surface end of the supporting middle plate 82. The anti-slip surface layer 81 enhances the anti-slip effect of the placement plate 8, thereby preventing the jack 4 from loosening. The supporting middle plate 82 and the mounting base plate 83 ensure the overall support stability.

[0020] More specifically, the front support plate 9 is provided with an anti-skid surface layer 81. The anti-skid surface layer 81 can ensure the anti-skid effect of the front support plate 9.

[0021] To be more specific, the butterfly valve 2 and the pipeline body 5 are connected by bolts.

[0022] The working principle of the present invention is as follows: before the pipeline body 5 needs to be repaired, the rear valve support plate 6 and the front valve support plate 9 can be welded online on the front and rear pipelines of the butterfly valve 2. Since the distance between the rear valve support plate 6 and the front valve support plate 9 is relatively long, the stroke of the jack 4 is insufficient, and an extension rod 7 and a placement plate 8 need to be added to the rear valve support plate 6. The placement plate 8 is used to place the jack 4. When repair is required, the flange bolts in front of the butterfly valve 2 are removed, and the flange gap is pushed open with the jack 4. When the opened gap is larger than the thickness of the blind plate seal 1, the blind plate seal 1 can be inserted, and then the bolts are tightened to complete the sealing before the valve. It should be noted that the butterfly valve 2 may not be completely closed. Therefore, the operators on the sealing site need to wear air respirators throughout the process to ensure their personal safety.

[0023] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for repairing and plugging blind plates before butterfly valves in gas pipelines, characterized by: It comprises a pipeline body (5), a butterfly valve (2) and a pipeline flange (3) are installed on the pipeline body (5), and a front valve support plate (9) and a rear valve support plate (6) are respectively installed at the front and rear ends of the outer wall of the butterfly valve (2), a placement plate (8) is installed on the rear valve support plate (6), and a jack (4) is provided between the placement plate (8) and the front valve support plate (9), and a blind plate seal (1) is installed between the butterfly valve (2) and the pipeline body (5).

2. The device for repairing and plugging a blind plate before a butterfly valve in a gas pipeline according to claim 1 is characterized in that: An extension rod (7) for extending the placement plate (8) thereof is installed on the rear valve support plate (6).

3. The device for repairing and plugging blind plates before butterfly valves in gas pipelines according to claim 1 is characterized in that: The placement plate (8) comprises a supporting middle plate (82), a mounting base plate (83) is installed at the bottom of the supporting middle plate (82), and an anti-slip surface layer (81) is provided on the surface end of the supporting middle plate (82).

4. The device for repairing and plugging a blind plate before a butterfly valve in a gas pipeline according to claim 1 is characterized in that: The valve front support plate (9) is provided with an anti-slip surface layer (81).

5. The device for repairing and plugging a blind plate before a butterfly valve in a gas pipeline according to claim 1 is characterized in that: The butterfly valve (2) and the pipeline body (5) are connected by bolts.

Images