Quick-opening blind plate for natural gas pipeline

Abstract

The utility model relates to the technical field of quick-opening blind plates, and discloses a natural gas pipeline quick-opening blind plate which comprises a pipeline, T-shaped grooves are formed in the two sides of the interior of the pipeline, sealing grooves are formed in one sides of the two sets of T-shaped grooves, rubber rings are installed in the two sets of sealing grooves in a matched mode, and hinges are fixedly installed on the side wall of the pipeline. The other end of the hinge is rotatably provided with a blind plate, and the blind plate is provided with a sealing detection mechanism. According to the utility model, the sealing plate installed on one side of the blind plate can be extruded by screwing the extrusion rod on the sealing detection mechanism, so that the inner walls of the blind plate and the sealing plate can synchronously extrude the rubber rings in the two groups of sealing grooves, thereby not only greatly increasing the air tightness in the pipeline, but also generating a reserved detection space between the blind plate and the sealing plate. And in cooperation with a natural gas sensor and an alarm, whether natural gas leaks in the sealing plate can be detected, and an alarm can be quickly given to remind an operator of overhauling.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-opening blind plates, in particular to a quick-opening blind plate for a natural gas pipeline. Background Art

[0002] At present, natural gas is stored in underground porous rock formations, including oilfield gas, gas field gas, coalbed methane, mud volcano gas and biogenic gas, and a small amount comes from coal seams. The main use of natural gas is as fuel. It can be used to make carbon black, chemicals and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry.

[0003] Among them, when cleaning and repairing the natural gas pipeline, it is necessary to open and close the blind plate. The formal name of the blind plate is flange cover, and some are also called blind flange or pipe plug. It is a flange without a hole in the middle. It is used to seal the pipeline mouth. The function is the same as the head and pipe cap, but the blind plate seal is a detachable sealing device, and the seal of the head is not intended to be opened again. There are many types of sealing surfaces, including flat surface, convex surface, concave-convex surface, tongue and groove surface and ring connection surface.

[0004] When using quick-opening blind plates in the market, since they all have a single-layer sealing structure, when the sealing structure leaks, it is not easy to make up for it in time, which may cause accidents. Therefore, it is necessary to design a new technical solution to solve the problem, so that the quick-opening blind plate can have a double-layer sealing structure and detect internal leakage. Utility Model Content

[0005] The utility model aims to provide a natural gas pipeline quick-opening blind plate, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas pipeline quick-opening blind plate, comprising a pipeline, both sides of the pipeline are provided with T-shaped grooves, one side of two groups of the T-shaped grooves are provided with sealing grooves, and rubber rings are fitted in the two groups of the sealing grooves, a hinge is fixedly installed on the side wall of the pipeline, a blind plate is rotatably installed on the other end of the hinge, and a sealing detection mechanism is installed on the blind plate;

[0007] The sealing detection mechanism includes a screw barrel fixedly installed in the middle of the blind plate, an extrusion rod threadedly installed in the screw barrel, a sealing plate rotatably installed at the bottom of the extrusion rod, a natural gas sensor fixedly installed at one end of the inner side of the blind plate, and an alarm fixedly connected to the natural gas sensor through a wire. A locking pin is installed on one side of the blind plate.

[0008] As an optional solution of the technical solution of the present application, the blind plate and the pipeline port fit together, and the sealing plate and the pipeline inner cavity fit together.

[0009] As an optional solution to the technical solution of the present application, limiting grooves are provided at the four corners of the bottom of the blind plate, limiting blocks are slidably installed in the four groups of limiting grooves, brackets are fixedly installed on the outside of the four groups of limiting blocks, and the other ends of the four groups of brackets are fixedly installed on the side walls of the sealing plate, so as to limit the sealing plate.

[0010] As an optional solution of the technical solution of the present application, a piston cylinder is fixedly installed on the side wall of the pipeline, and an adjustment frame is inserted into the piston cylinder to position the adjustment frame.

[0011] As an optional solution to the technical solution of the present application, a screw is threadedly installed on the other end of the adjustment frame, a handle is fixedly installed on the top of the screw, and a hexagonal joint is fixedly installed on the bottom of the screw, which saves effort to screw the screw together.

[0012] As an optional solution of the technical solution of the present application, a hexagonal socket is fixedly installed on the top of the screw barrel, and the hexagonal socket corresponds to the hexagonal joint and can drive the extrusion rod to rotate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The technical solution of the present application can squeeze the sealing plate installed on one side of the blind plate by screwing the squeezing rod on the sealing detection mechanism, so that the blind plate and the inner wall of the sealing plate can synchronously squeeze the rubber rings in the two sets of sealing grooves, which not only greatly increases the air tightness in the pipeline, but also creates a reserved detection space between the blind plate and the sealing plate. In conjunction with the natural gas sensor and the alarm, it can detect whether there is a natural gas leak in the sealing plate, and can quickly sound an alarm to remind the operator to carry out maintenance.

[0015] 2. The technical solution of the present application is that a hexagonal joint is fixedly installed at the bottom of the screw, and the hexagonal joint and the hexagonal socket fixedly installed on the top of the screw barrel correspond to each other. When the operator adjusts the adjustment frame on the piston barrel, it can ensure that the hexagonal joint at the bottom of the screw and the hexagonal socket on the top of the screw barrel fit each other. When the screw on the adjusting frame is easily screwed in, the extrusion rod in the screw barrel can be driven to rotate synchronously to squeeze the sealing plate inside the blind plate. After waiting for the blind plate to be installed, the adjusting frame can be directly removed, which is convenient for adjusting multiple sets of adaptive blind plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a quick-opening blind plate for a natural gas pipeline according to the utility model;

[0018] Figure 2The utility model is a blind plate structure schematic diagram of a natural gas pipeline quick-opening blind plate.

[0019] In the figure: 1. pipeline; 11. T-slot; 12. sealing groove; 13. rubber ring; 14. hinge; 2. blind plate; 21. screw barrel; 22. extrusion rod; 23. sealing plate; 24. natural gas sensor; 25. alarm; 3. limit groove; 31. limit block; 32. bracket; 4. piston cylinder; 41. adjustment frame; 42. screw; 43. hexagonal joint; 52. hexagonal socket. DETAILED DESCRIPTION

[0020] See also Figure 1-2 The utility model provides a technical solution: a natural gas pipeline quick-opening blind plate, comprising a pipeline 1, T-slots 11 are provided on both sides of the interior of the pipeline 1, sealing grooves 12 are provided on one side of two groups of T-slots 11, and rubber rings 13 are fitted in the two groups of sealing grooves 12, a hinge 14 is fixedly installed on the side wall of the pipeline 1, a blind plate 2 is rotatably installed on the other end of the hinge 14, and a sealing detection mechanism is installed on the blind plate 2;

[0021] The sealing detection mechanism includes a screw barrel 21 fixedly installed in the middle of the blind plate 2, an extrusion rod 22 threadedly installed in the screw barrel 21, a sealing plate 23 rotatably installed at the bottom of the extrusion rod 22, a natural gas sensor 24 fixedly installed at one end of the inner side of the blind plate 2, and an alarm 25 fixedly connected to the natural gas sensor 24 through a wire. A locking pin is installed on one side of the blind plate 2, the blind plate 2 and the port of the pipeline 1 fit together, and the sealing plate 23 and the inner cavity of the pipeline 1 fit together.

[0022] In this technical solution, by screwing together the squeezing rod 22 on the sealing detection mechanism, the sealing plate 23 installed on one side of the blind plate 2 can be squeezed, so that the inner wall of the blind plate 2 and the sealing plate 23 can synchronously squeeze the rubber rings 13 in the two sets of sealing grooves 12, which not only greatly increases the air tightness in the pipeline 1, but also creates a reserved detection space between the blind plate 2 and the sealing plate 23. In conjunction with the natural gas sensor 24 and the alarm 25, it can detect whether there is a natural gas leak in the sealing plate 23, and can quickly sound an alarm to remind the operator to perform maintenance.

[0023] In some technical solutions, a screw 42 is threadedly installed at the other end of the adjustment frame 41, a handle is fixedly installed on the top of the screw 42, and a hexagonal joint 43 is fixedly installed on the bottom of the screw 42, which makes it easier to screw the screw 42 together. A hexagonal connecting sleeve 52 is fixedly installed on the top of the screw barrel 21, and the hexagonal connecting sleeve 52 corresponds to the hexagonal joint 43, which can drive the extrusion rod 22 to rotate.

[0024] In this technical solution, a hexagonal joint 43 is fixedly installed at the bottom of the screw 42, and the hexagonal joint 43 and the hexagonal socket 52 fixedly installed on the top of the screw barrel 21 correspond to each other. When the operator adjusts the adjustment frame 41 on the piston cylinder 4, it can be ensured that the hexagonal joint 43 at the bottom of the screw 42 and the hexagonal socket 52 on the top of the screw barrel 21 fit each other. When the screw 42 on the adjustment frame 41 is easily screwed in, the extrusion rod 22 in the screw barrel 21 can be synchronously driven to rotate, so as to extrude the sealing plate 23 inside the blind plate 2.

[0025] In some technical solutions, a piston cylinder 4 is fixedly installed on the side wall of the pipeline 1, and an adjustment frame 41 is inserted into the piston cylinder 4, so that the adjustment frame 41 can be positioned.

[0026] In this technical solution, after the blind plates 2 are installed, the adjustment bracket 41 can be directly removed to facilitate the adjustment of multiple sets of adaptive blind plates 2.

[0027] In some technical solutions, limiting grooves 3 are provided at the four corners of the bottom of the blind plate 2, and limiting blocks 31 are slidably installed in the four groups of limiting grooves 3. Brackets 32 are fixedly installed on the outside of the four groups of limiting blocks 31. The other ends of the four groups of brackets 32 are fixedly installed on the side walls of the sealing plate 23, so as to limit the sealing plate 23.

[0028] In this technical solution, when the sealing detection mechanism is operated to adjust the sealing plate 23 installed on one side of the blind plate 2, the limiting block 31 in the limiting groove 3 is used to limit the sealing plate 23 during adjustment to ensure horizontal movement.

[0029] When a quick-opening blind plate for a natural gas pipeline is used, it should be noted that the utility model is a quick-opening blind plate for a natural gas pipeline, and each component is a universal standard part or a component known to technical personnel in this field, and its structure and principle can be known to technical personnel through technical manuals or through conventional experimental methods.

[0030] When in use, the blind plate 2 can be slowly closed in the inner cavity of the pipeline 1 by first rotating the hinge 14 installed on one side of the pipeline 1. After the blind plate 2 and the end of the pipeline 1 fit each other, the locking pin installed on one side of the blind plate 2 can be locked to firmly position the blind plate 2 on one side of the pipeline 1. At the same time, the squeezing rod 22 on the sealing detection mechanism can be screwed on to squeeze the sealing plate 23 installed on one side of the blind plate 2, so that the inner walls of the blind plate 2 and the sealing plate 23 can synchronously squeeze the rubber rings 13 in the two sets of sealing grooves 12, which not only greatly increases the airtightness in the pipeline 1, but also creates a reserved detection space between the blind plate 2 and the sealing plate 23, and cooperates with the natural gas sensor 24 and the alarm 25 to detect the sealing plate 2. 3 whether there is a natural gas leak, an alarm can be quickly issued to remind the operator to carry out maintenance, and at the same time, a hexagonal joint 43 is fixedly installed at the bottom of the screw rod 42, and the hexagonal joint 43 and the hexagonal connection tube 52 fixedly installed on the top of the screw barrel 21 correspond to each other. When the operator adjusts the adjustment frame 41 on the piston cylinder 4, it can ensure that the hexagonal joint 43 at the bottom of the screw rod 42 and the hexagonal connection tube 52 on the top of the screw barrel 21 fit each other, and the screw rod 42 on the adjustment frame 41 is easily screwed in, which can synchronously drive the extrusion rod 22 in the screw barrel 21 to rotate, and squeeze the sealing plate 23 on the inner side of the blind plate 2. After waiting for the blind plate 2 to be installed, the adjustment frame 41 can be directly taken away, which is convenient for adjusting multiple sets of matching blind plates 2.

Claims

1. A natural gas pipeline quick-opening blind plate, comprising a pipeline (1), characterized in that: Both sides of the interior of the pipe (1) are provided with T-shaped grooves (11), one side of two groups of the T-shaped grooves (11) is provided with sealing grooves (12), and rubber rings (13) are fitted in the two groups of the sealing grooves (12). A hinge (14) is fixedly installed on the side wall of the pipe (1), and a blind plate (2) is rotatably installed on the other end of the hinge (14), and a sealing detection mechanism is installed on the blind plate (2); The sealing detection mechanism comprises a screw barrel (21) fixedly mounted in the middle of the blind plate (2), an extrusion rod (22) threadedly mounted in the screw barrel (21), a sealing plate (23) rotatably mounted at the bottom of the extrusion rod (22), a natural gas sensor (24) fixedly mounted at one end of the inner side of the blind plate (2), and an alarm (25) fixedly connected to the natural gas sensor (24) via a wire. A locking pin is mounted on one side of the blind plate (2).

2. A natural gas pipeline quick opening blind plate according to claim 1, characterized in that: The blind plate (2) and the port of the pipeline (1) fit together, and the sealing plate (23) and the inner cavity of the pipeline (1) fit together.

3. A natural gas pipeline quick opening blind plate according to claim 1, characterized in that: Limiting grooves (3) are provided at the four corners of the bottom of the blind plate (2), and limiting blocks (31) are slidably installed in four groups of the limiting grooves (3). Brackets (32) are fixedly installed on the outsides of the four groups of limiting blocks (31), and the other ends of the four groups of brackets (32) are fixedly installed on the side walls of the sealing plate (23).

4. A natural gas pipeline quick opening blind plate according to claim 1, characterized in that: A piston cylinder (4) is fixedly mounted on the side wall of the pipeline (1), and an adjustment frame (41) is inserted into the piston cylinder (4).

5. A natural gas pipeline quick opening blind plate according to claim 4, characterized in that: A screw rod (42) is threadedly mounted on the other end of the adjustment frame (41), a handle is fixedly mounted on the top of the screw rod (42), and a hexagonal joint (43) is fixedly mounted on the bottom of the screw rod (42).

6. A natural gas pipeline quick opening blind plate according to claim 5, characterized in that: A hexagonal socket (52) is fixedly mounted on the top of the screw barrel (21), and the hexagonal socket (52) corresponds to the hexagonal joint (43).

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