Exhaust device for pressure pipeline

Abstract

The utility model provides an air exhausting device for a pressure pipeline, which comprises an air exhausting branch pipe, a main pipe, a main pipe, a valve, a pressure pipeline, a pressure pipeline, a pressure pipeline, a pressure pipeline, a pressure pipeline and a pressure pipeline, and is characterized in that one end of the air exhausting branch pipe is connected with the main pipe, and the other end of the air exhausting branch pipe connected with the valve is arranged in an inspection well; the structure is simple, operation is convenient, and the problem that an exhaust inspection well is inconvenient to arrange along the main pipe line is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure pipelines, in particular to an exhaust device for pressure pipelines. Background Art

[0002] The current conventional technology is: the exhaust facilities of the pressure water pipeline are important measures for the safe operation of the pipeline. The exhaust facilities generally use air valves, which are set at a certain distance (about 1000m) between the pipeline bulge point and the flat pipeline, so that the gas accumulated at the local high point in the main pipe can be discharged into the atmosphere. A vertical upward exhaust branch pipe is connected to the opening of the pipe wall above the main pipe, and an inspection well is set on the spot at the outlet of this exhaust branch pipe. The inspection well can meet the requirements of accommodating the exhaust branch pipe and a small section of the main pipe directly below, which is convenient for personnel to enter and exit, go down the well and other functions. The size of the inspection well is determined according to the main pipe, exhaust branch pipe, and operating space requirements. The inspection well is built with reinforced concrete or brick structure.

[0003] The technical problem with conventional technology is that the exhaust inspection well set up on-site at the place where the main pipe is connected to the exhaust branch pipe is limited to the line along the main pipe. When the main pipe is laid under the water and is located at a land location such as a roadway that is inconvenient to excavate or frequently opened, it is difficult to find a suitable location to set up the inspection well on-site. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes an exhaust device for a pressure pipeline, which has a simple structure and is easy to operate, and solves the problem that it is inconvenient to set up an inspection well for exhaust along the main pipe.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] The utility model provides an exhaust device for a pressure pipeline, comprising an exhaust branch pipe, one end of which is connected to a main pipe, the other end of which is connected to a valve, and the other end of which is connected to the valve is arranged in an inspection well.

[0007] The utility model provides an exhaust device for a pressure pipeline, which has a simple structure and is easy to operate, and solves the problem that it is inconvenient to set an inspection well for exhaust along the main pipe.

[0008] As a preferred technical solution, the exhaust branch pipe includes: a horizontal branch pipe and a vertical branch pipe, the vertical branch pipe includes: a first vertical branch pipe and a second vertical branch pipe, the main pipe is connected to the first vertical branch pipe, one end of the horizontal branch pipe is connected to the first vertical branch pipe through a first elbow, and the other end of the horizontal branch pipe passes through a side wall of the inspection well and is connected to one end of the second vertical branch pipe through a second elbow.

[0009] As a preferred technical solution, the valve includes: an exhaust valve and a gate valve, and the other end of the second vertical branch pipe is connected to the exhaust valve and the gate valve in sequence.

[0010] As a preferred technical solution, the diameter of the exhaust branch pipe is 1 / 12 to 1 / 8 of the diameter of the main pipe.

[0011] As a preferred technical solution, the inspection well includes: an inspection well bottom plate, a cover plate and an inspection well side wall. The inspection well bottom plate and the cover plate are arranged correspondingly, the inspection well side wall is arranged on the inspection well bottom plate and connected to the inspection well bottom plate, and the cover plate is movably connected to the inspection well side wall.

[0012] As a preferred technical solution, a ladder is provided on the inner side of the side wall of the inspection well.

[0013] As a preferred technical solution, a support member is provided on the bottom plate of the inspection well, and the support member is used to support the second elbow and the second vertical branch pipe.

[0014] As a preferred technical solution, a sand and gravel cushion layer is provided at the bottom of the inspection well, and a reinforced concrete slab is provided on the sand and gravel cushion layer to form the bottom plate of the inspection well.

[0015] As a preferred technical solution, the thickness of the sand and gravel cushion layer is 100 mm.

[0016] As a preferred technical solution, the thickness of the reinforced concrete slab is 300 to 400 mm.

[0017] The utility model provides an exhaust device for a pressure pipeline, which has the following beneficial effects: it has a simple structure and is easy to operate, and solves the problem that it is inconvenient to set an inspection well for exhaust along the main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural diagram of an exhaust device for a pressure pipeline provided by the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of 1-1 in an exhaust device for a pressure pipe is provided;

[0020] Figure 3 for Figure 1 A cross-sectional view of 2-2 in an exhaust device for a pressure pipe is provided.

[0021] 1-exhaust branch pipe; 11-horizontal branch pipe; 12-vertical branch pipe; 121-first vertical branch pipe; 122-second vertical branch pipe; 13-first elbow; 14-second elbow; 2-main pipe; 3-gate valve; 4-inspection well; 41-inspection well bottom plate; 42-inspection well side wall; 43-cover plate; 44-support member; 5-exhaust valve. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the utility model provides an exhaust device for a pressure pipeline, comprising: an exhaust branch pipe 1, one end of the exhaust branch pipe 1 is connected to the main pipe 2, the other end of the exhaust branch pipe 1 is connected to the valve 3, and the other end of the exhaust branch pipe 1 connected to the valve 3 is arranged in an inspection well 4; the exhaust branch pipe 1 comprises: a horizontal branch pipe 11 and a vertical branch pipe 12, the vertical branch pipe 12 comprises: a first vertical branch pipe 121 and a second vertical branch pipe 122, the main pipe 2 is connected to the first vertical branch pipe 121, one end of the horizontal branch pipe 11 is connected to the first vertical branch pipe 121 through a first elbow 13, and the other end of the horizontal branch pipe 11 passes through a side wall of the inspection well 4 and is connected to one end of the second vertical branch pipe 122 through a second elbow 14; the diameter of the exhaust branch pipe 1 is 1 / 12 to 1 / 8 of the diameter of the main pipe 2, the structure is simple, the operation is convenient, and the problem of inconvenience in setting an exhaust inspection well along the main pipe is solved.

[0024] like Figure 2-3As shown, the utility model provides an exhaust device for a pressure pipeline, the main pipe 2 is connected to the first vertical branch pipe 121, one end of the horizontal branch pipe 11 is connected to the first vertical branch pipe 121 through a first elbow 13, the other end of the horizontal branch pipe 11 passes through a side wall of the inspection well 4 and is connected to one end of the second vertical branch pipe 122 through a second elbow 14; the other end of the second vertical branch pipe 122 is connected to the exhaust valve 6 and the gate valve 5 in sequence; the second vertical branch pipe 122, the exhaust valve 6, the gate valve 5 and the other end of the horizontal branch pipe 11 are all arranged in the inspection well 4, and the diameter of the exhaust branch pipe 1 is 1 / 12 to 1 / 8 of the diameter of the main pipe 2; the inspection well 4 includes: an inspection well bottom plate 41 and a cover plate 4 3. The inspection well bottom plate 41 and the cover plate 43 are arranged correspondingly, the inspection well side wall 42 is arranged on the inspection well bottom plate 41 and connected to the inspection well bottom plate 41, and the cover plate 43 is movably connected to the inspection well side wall 42; a ladder (not shown) is arranged on the inner side of the inspection well side wall 42; a support member 44 is arranged on the inspection well bottom plate 41, and the support member 44 is used to support the second elbow 14; a sand and gravel cushion layer is arranged at the bottom of the inspection well, and a reinforced concrete plate is arranged on the sand and gravel cushion layer to form the inspection well bottom plate 41; the thickness of the sand and gravel cushion layer is 100 mm; the thickness of the reinforced concrete plate is 300-400 mm; it has a simple structure and is easy to operate, which solves the problem that it is inconvenient to set an exhaust inspection well on the main pipe.

[0025] Preferably, the diameter of the exhaust branch pipe 1 is 1 / 12 to 1 / 8 of the diameter of the main pipe 2 .

[0026] The thickness of the sand and gravel cushion layer is preferably 100 mm.

[0027] The thickness of the reinforced concrete slab is 300-400 mm. Due to space limitations and for the sake of simplicity, the present invention will no longer exhaustively list the specific point values ​​included in the range.

[0028] The utility model provides an exhaust device for a pressure pipeline, which has a simple structure and is easy to operate, and solves the problem that it is inconvenient to set an inspection well for exhaust along the main pipe.

[0029] The utility model provides an exhaust device for a pressure pipeline, comprising:

[0030] The exhaust branch pipe 1 includes: a first vertical branch pipe 121, a horizontal branch pipe 11, and a second vertical branch pipe 122. A short section of the first vertical branch pipe 121 is vertically connected upward from the pipe ridge at the longitudinal bulge of the main pipe 2. Open welding or customized pipe fittings are mostly used. The vertically connected first vertical branch pipe 121 is turned to the horizontal direction through the first elbow 13 and then continues to extend to connect the horizontal branch pipe 11. The extension direction and distance of the horizontal branch pipe 11 are determined according to design requirements. After the horizontal branch pipe 11 is extended and penetrated into the inspection well 4, the second elbow 14 is used to adjust the direction, and the horizontal branch pipe 11 is adjusted through the second elbow 14 to connect the second vertical branch pipe 122;

[0031] The valve includes a gate valve 5 and an exhaust valve 6. The gate valve 5 and the exhaust valve 6 are installed on the second vertical branch pipe 122. The gate valve 5 is firstly arranged on the second vertical branch pipe 122. The gate valve 5 is used to control the opening and closing of the exhaust branch pipe 1, and provides necessary conditions for the disassembly and maintenance of the exhaust valve 6.

[0032] After the gas in the main pipe 2 is separated from the fluid medium, it gathers along the pipeline to the high point of the bulge, and continues to flow along the exhaust branch pipe 1 to its end along the opening at the bulge. When the gas continues to gather and the pressure rises to a certain level, the critical pressure of the exhaust valve 6 is triggered, and the exhaust valve 6 is opened to release the pressurized gas into the atmosphere. The pressure of the released pressurized gas in the pipe decreases accordingly. After it drops to a certain level, the exhaust valve 6 is closed to end the release until the gas pressure in the pipeline rises to a certain level again and enters the next exhaust process.

[0033] Inspection well 4, the second vertical branch pipe 122, the exhaust valve 6, the gate valve 5 and the other end of the horizontal branch pipe 11 are all arranged in the inspection well 4, which provides convenience for personnel maintenance operations. The inspection well 4 can be built with bricks or reinforced concrete, and the shape can be circular or rectangular. A ladder is arranged on the inner wall of the inspection well 4 for maintenance personnel to go up and down in and out of the inspection well 4. A support member 44 is arranged at the bottom of the second vertical branch pipe 122. The support member 44 is preferably a pier or other reliable support measures. The support member 44 is used to support the second elbow 14 and the second vertical branch pipe 122;

[0034] A 100mm gravel cushion layer is set at the bottom of the inspection well 4, and a 300-400mm reinforced concrete slab is set on the 100mm gravel cushion layer. The bottom of the inspection well 4 is surrounded by a rectangular inspection well side wall 42 made of brick or reinforced concrete. The second vertical branch pipe 122, the exhaust valve 6 and the gate valve 5 are usually arranged in the center on the plane, and a maintenance operation space of not less than 600mm is reserved around. A maintenance operation space of not less than 500mm is reserved at the bottom of the second vertical branch pipe 122, the exhaust valve 6 and the gate valve 5. The net height inside the inspection well 4 should not be less than 1800mm, and the diameter of the upper cover plate 43 should not be less than 700mm; opening the cover plate 43 is convenient for maintenance personnel to enter the inspection well 4 for maintenance.

[0035] It can be understood that the utility model is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the teachings of the utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all various changes or equivalent substitutions falling within the scope of the claims of the present application are included. In addition, under the teachings of the utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. An exhaust device for a pressure pipe, characterized in that: include: An exhaust branch pipe, one end of which is connected to a main pipe, and the other end of which is connected to a valve, the other end of which is connected to the valve is arranged in an inspection well, the exhaust branch pipe comprises: a horizontal branch pipe and a vertical branch pipe, the vertical branch pipe comprises: a first vertical branch pipe and a second vertical branch pipe, the main pipe is connected to the first vertical branch pipe, one end of the horizontal branch pipe is connected to the first vertical branch pipe through a first elbow, and the other end of the horizontal branch pipe passes through a side wall of the inspection well and is connected to one end of the second vertical branch pipe through a second elbow.

2. The exhaust device for a pressure pipe according to claim 1, characterized in that: The valve comprises: an exhaust valve and a gate valve, and the other end of the second vertical branch pipe is connected to the exhaust valve and the gate valve in sequence.

3. The exhaust device for a pressure pipe according to claim 1, characterized in that: The diameter of the exhaust branch pipe is 1 / 12 to 1 / 8 of the diameter of the main pipe.

4. The exhaust device for a pressure pipe according to claim 2, characterized in that: The inspection well comprises: an inspection well bottom plate, a cover plate and an inspection well side wall. The inspection well bottom plate and the cover plate are arranged correspondingly. The inspection well side wall is arranged on the inspection well bottom plate and connected to the inspection well bottom plate. The cover plate is movably connected to the inspection well side wall.

5. The exhaust device for a pressure pipe according to claim 4, characterized in that: A ladder is arranged on the inner side of the side wall of the inspection well.

6. The exhaust device for a pressure pipe according to claim 4, characterized in that: A support member is provided on the bottom plate of the inspection well, and the support member is used to support the second elbow and the second vertical branch pipe.

7. The exhaust device for a pressure pipe according to claim 4, characterized in that: A sand and gravel cushion layer is arranged at the bottom of the inspection well, and a reinforced concrete slab is arranged on the sand and gravel cushion layer to form the bottom plate of the inspection well.

8. The exhaust device for a pressure pipe according to claim 7, characterized in that: The thickness of the sand and gravel cushion layer is 100 mm.

9. The exhaust device for a pressure pipe according to claim 7, characterized in that: The thickness of the reinforced concrete slab is 300-400 mm.

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