CN215004735U

CN215004735U - Pressure dividing cylinder for pipeline pressure test

Info

Publication number: CN215004735U
Application number: CN202120951971.XU
Authority: CN
Inventors: 陈帅; 刘杨杨; 宋家启; 吴陆军
Original assignee: Bengbu Special Equipment Supervision And Inspection Center
Current assignee: Bengbu Special Equipment Supervision And Inspection Center
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-03
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a pressure-dividing cylinder for pipeline pressure test, which comprises a main cylinder body, a water injection pipe, a water discharge pipe and a plurality of branch pipes, wherein the water injection pipe, the water discharge pipe and the branch pipes are communicated with the main cylinder body; a plurality of the bleeder is the same in structure, all include the branch be responsible for and with two one end with the branch is responsible for the side branch pipe of intercommunication, the branch be responsible for one end with the main cylinder body intercommunication, the other end that the branch was responsible for is connected with threaded joint, two the other end of side branch pipe is connected with square flange and circular flange respectively. The utility model discloses the pipeline under pressure that helps solving the integrated sled of general natural gas has multiple specification and multiple interface, makes its problem of inefficiency when carrying out the water pressure test.

Description

Pressure dividing cylinder for pipeline pressure test

Technical Field

The utility model relates to a pipeline pressure test technical field, specifically speaking relate to a pipeline pressure test divides pressure cylinder.

Background

In the integrated sled of natural gas, be provided with the pipeline under pressure of multiple specification and multiple interface, when carrying out the water pressure test to pipeline under pressure, because a water pump can only test the pipeline under pressure of a specification, a kind of interface, each different pipeline under pressure needs the one-to-one adjustment during the test, and the process is consuming time longer, has also wasted artifical capital when work efficiency hangs down.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a pipeline pressure test divides pressure cylinder that promotes the hydraulic pressure efficiency of the pipeline under pressure of the integrated sled of natural gas is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme: a pipeline pressure test pressure-dividing cylinder comprises a main cylinder body, a water injection pipe, a water discharge pipe and a plurality of branch pipes, wherein the water injection pipe, the water discharge pipe and the branch pipes are communicated with the main cylinder body;

a plurality of the bleeder is the same in structure, all include the branch be responsible for and with two one end with the branch is responsible for the side branch pipe of intercommunication, the branch be responsible for one end with the main cylinder body intercommunication, the other end that the branch was responsible for is connected with threaded joint, two the other end of side branch pipe is connected with square flange and circular flange respectively.

Furthermore, a pressure gauge mounting hole is formed in the branch main pipe.

Furthermore, a first sealing washer is arranged on the hole wall of the pressure gauge mounting hole.

Further, the plurality of branch pipes have different outer diameters.

Further, the water injection pipe, the drain pipe and a plurality of the lateral pipes are all provided with valves.

Further, still include a plurality of pipeline sealing device, pipeline sealing device include the fixed plate, through a plurality of first lead screws with the fixed plate is the mounting panel that the interval set up and sets up seal the mechanism on the mounting panel, it is a plurality of first lead screw respectively with the fixed plate with mounting panel threaded connection, seted up on the fixed plate and be used for with pipeline sealing device cover establishes the pipeline mounting hole on the pipeline.

Furthermore, two sides of the fixing plate are respectively in threaded connection with second screw rods, and the two second screw rods respectively penetrate through the hole walls of the pipeline mounting holes.

Furthermore, the sealing mechanism comprises a sealing block, a third screw rod and a plurality of extrusion assemblies, the third screw rod is in threaded connection with the sealing block, a first sliding groove for the top end of the third screw rod to slide is formed in the sealing block, a plurality of penetrating second sliding grooves are formed in the groove wall of the first sliding groove, and the extrusion assemblies are arranged in the second sliding grooves in a one-to-one sliding mode.

Furthermore, the top end of the third screw rod is also provided with a conical block, the conical block can slide in the first sliding groove, and the second sliding grooves are respectively arranged on the bottom groove wall of the first sliding groove.

Furthermore, the extrusion assembly comprises a first sliding block, a second sliding block and a spring for connecting the first sliding block with the second sliding block, and the sealing mechanism further comprises a second sealing washer which is connected with the plurality of second sliding blocks.

The beneficial effects of the utility model are embodied in:

the utility model discloses pipeline pressure test branch pressure cylinder is provided with the master cylinder body, water injection pipe with the master cylinder body intercommunication, drain pipe and a plurality of bleeder, the bleeder is responsible for and is connected with two other branch pipes of square flange and circular flange respectively including screwed joint's branch, through the connected mode who has increased the bleeder, make the different interface of adaptation simultaneously of a bleeder of this pressure cylinder, the adaptation rate of bleeder has been strengthened, when having alleviated and having carried out the water pressure test, the pipeline under pressure of the integrated sled of natural gas has the connection problem of multiple interface, to a certain extent, the efficiency of software testing has been improved.

Drawings

FIG. 1 is a schematic structural view of the pressure-dividing cylinder for pipeline pressure test of the present invention;

FIG. 2 is a schematic view of the structure of the branch pipe of the present invention;

FIG. 3 is a side view of the pipe pressure test pressure-dividing cylinder of the present invention;

FIG. 4 is a sectional view of the structure of the pipe sealing device of the present invention;

fig. 5 is a sectional view of the sealing block structure of the present invention.

The components in the drawings are labeled as follows: 1. a main cylinder body; 2. a water injection pipe; 3. a drain pipe; 4. a branch pipe; 401. a branch main pipe; 402. a bypass pipe; 403. a threaded joint; 404. a square flange; 405. a circular flange; 406. a pressure gauge mounting hole; 407. a first sealing gasket; 5. a valve; 6. a pipe sealing device; 601. a fixing plate; 6011. a pipe mounting hole; 602. a first lead screw; 603. mounting a plate; 604. a sealing mechanism; 6041. a sealing block; 6042. a third screw rod; 6043. an extrusion assembly; 6044. a first chute; 6045. a second chute; 6046. a conical block; 6047. a first slider; 6048. two sliding blocks; 6049. a spring; 6040. a second sealing gasket; 605. and a second screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1.

The utility model discloses a pipeline pressure test pressure-dividing cylinder, which comprises a main cylinder body 1, a water injection pipe 2 communicated with the main cylinder body 1, a drain pipe 3 and a plurality of branch pipes 4;

the plurality of branch pipes 4 have the same structure, and each branch pipe includes a branch main pipe 401 and two branch pipes 402, one end of each branch main pipe 401 is communicated with the main cylinder 1, the other end of each branch main pipe 401 is connected with a threaded joint 403, and the other ends of the two branch pipes 402 are respectively connected with a square flange 404 and a circular flange 405.

The utility model discloses pipeline pressure test branch pressure cylinder is provided with the main cylinder body 1, water injection pipe 2 with 1 intercommunication of main cylinder body, drain pipe 3 and a plurality of bleeder 4, bleeder 4 is responsible for 401 and is connected with two other branch pipes 402 of square flange 404 and circular flange 405 respectively including the branch of screwed joint 403, through the connected mode that has increased bleeder 4, make a bleeder 4 of this pressure cylinder can the different interface of adaptation simultaneously, the adaptation rate of bleeder 4 has been strengthened, when having alleviated and having carried out the water pressure test, the pipeline under pressure of the integrated sled of natural gas has the connection problem of multiple interface, to a certain extent, the efficiency of software testing has been improved.

In an embodiment, referring to fig. 1, the branch main pipe 401 further has a pressure gauge mounting hole 406. The pressure gauge mounting hole 406 is arranged for mounting a pressure gauge and used for testing the pressure value of the pipeline.

In one embodiment, referring to fig. 1 and 2, the wall of the pressure gauge mounting hole 406 is provided with a first sealing washer 407. By the design, air leakage of the pressure gauge mounting hole 406 during pressure gauge mounting is prevented, so that test data are inaccurate.

In one embodiment, referring to fig. 1 and 3, the plurality of branch pipes 4 have different outer diameters of the pipes. Design like this, have different external diameter size again when bleeder 4 has different interfaces, make the utility model discloses a different bleeder 4 can connect the pipeline under pressure of the integrated sled of natural gas of different size of a dimension and different interfaces simultaneously, realizes once can carrying out a plurality of pipeline tests, the effectual efficiency of software testing that has improved, the utility model discloses in, bleeder 4 is provided with six, and each bleeder 4's external diameter size is respectively: Φ 57, Φ 76, Φ 89, Φ 108, Φ 155, Φ 156.

In one embodiment, referring to fig. 1, valves 5 are disposed on the water injection pipe 2, the water discharge pipe 3, and the branch pipes 4. The valve 5 that sets up on water injection pipe 2 and the drain pipe 3 is used for controlling the interior water of partial pressure cylinder and advances and discharge, and the valve 5 on the bleeder line 4 that sets up is arranged in the business turn over of the natural gas of the integrated sled of control natural gas.

In an embodiment, referring to fig. 4, the pipeline sealing device 6 further includes a plurality of pipeline sealing devices 6, where each pipeline sealing device 6 includes a fixing plate 601, a mounting plate 603 spaced apart from the fixing plate 601 by a plurality of first screws 602, and a sealing mechanism 604 disposed on the mounting plate 603, the plurality of first screws 602 are respectively in threaded connection with the fixing plate 601 and the mounting plate 603, and a pipeline mounting hole 6011 for sleeving the pipeline sealing device 6 on a pipeline is formed in the fixing plate 601. The pipeline sealing device 6 that sets up can seal two other pipelines when a pipeline in the lateral 4 is used, take lateral 402 as an example, during the use, fix the fixed plate 601 earlier and establish on the pipeline outer wall of lateral 402, seal the mechanism 604 and aim at the mouth of pipe, will seal the mechanism 604 and realize the downstream and block up the mouth of pipe through rotatory a plurality of first lead screws 602. In the present embodiment, the plurality of pipe sealing devices 6 are provided in a one-to-one correspondence with the outer diameters of the branch pipes 4.

In an embodiment, referring to fig. 4, two sides of the fixing plate 601 are further respectively screwed with second lead screws 605, and the two second lead screws 605 respectively penetrate through the hole walls of the pipeline installation holes 6011. By adopting the design, taking the side branch pipe 402 as an example, the fixing plate 601 can be effectively fixed on the outer wall of the pipeline of the side branch pipe 402 through the second screw rod 605.

In an embodiment, referring to fig. 4, the sealing mechanism 604 includes a sealing block 6041, a third lead screw 6042, and a plurality of squeezing assemblies 6043, the third lead screw 6042 is screwed on the sealing block 6041, a first sliding groove 6044 for the top end of the third lead screw 6042 to slide is provided inside the sealing block 6041, a plurality of second sliding grooves 6045 are provided on the groove wall of the first sliding groove 6044, and the squeezing assemblies 6043 are slidably disposed in the second sliding groove 6045 in a one-to-one correspondence. In this way, for example, with the bypass pipe 402, when the third screw 6042 moves downward by rotation, the top end of the third screw 6042 can simultaneously extrude the plurality of extrusion assemblies 6043, so that the plurality of extrusion assemblies 6043 slide in the corresponding second chutes 6045 and extrude toward the inner wall of the bypass pipe 402.

In an embodiment, referring to fig. 4, a tapered block 6046 is further disposed at a top end of the third screw 6042, the tapered block 6046 is slidable in the first sliding slot 6044, and the plurality of second sliding slots 6045 are respectively disposed on a bottom slot wall of the first sliding slot 6044. Outside being located corresponding second spout 6045 when a plurality of extrusion components 6043's that set up one end is not extrudeed, in first spout 6044, the toper piece 6046 that sets up can be fine extrudees a plurality of extrusion components 6043 along with the decline of third lead screw 6042, makes it slide in corresponding second spout 6045.

In one embodiment, referring to fig. 4 and 5, the pressing assembly 6043 comprises a first slide 6047, a second slide 6048 and a spring 6049 connecting the first slide 6047 and the second slide 6048, and the sealing mechanism 604 further comprises a second sealing washer 6040, wherein the second sealing washer 6040 is connected with a plurality of the second slides 6048. In this design, taking the bypass pipe 402 as an example, the second sealing washer 6040 is elastic, and when the second sliders 6048 are respectively pressed against the inner wall of the bypass pipe 402, the second sealing washer 6040 is elastically deformed to be more closely attached to the inner wall of the bypass pipe 402, thereby further improving the sealing performance of the sealing mechanism 604.

In an embodiment, the utility model discloses the use step of pipeline pressure test branch pressure jar is as follows:

s1, firstly, the design pressure of the pipeline pressure test pressure-dividing cylinder is larger than the hydraulic test value of all pressure pipelines to be connected;

s2, connecting each pressure pipeline to each branch pipe 4 of the pipeline pressure test pressure-dividing cylinder;

s3, sealing the pipeline joints of the branch pipes 4 which are not connected through the pipeline sealing device 6;

s4, closing the valves 5 of the water discharge pipe 3, enabling water to enter the main cylinder body 1 from the water injection pipe 2 through the water pump, observing the test pressure value in each branch pipe 4, and closing the rest valves 5 to maintain pressure when the pressure value reaches the test value;

s5, after the test is finished, the water in the main cylinder 1 is discharged from the drain pipe 3.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The pressure-dividing cylinder for the pipeline pressure test is characterized by comprising a main cylinder body (1), a water injection pipe (2), a water discharge pipe (3) and a plurality of branch pipes (4), wherein the water injection pipe (2), the water discharge pipe (3) and the branch pipes are communicated with the main cylinder body (1);

the structure of a plurality of the branch pipes (4) is the same, and each branch pipe comprises a branch main pipe (401) and a side branch pipe (402) with two ends communicated with the branch main pipe (401), one end of the branch main pipe (401) is communicated with the main cylinder body (1), the other end of the branch main pipe (401) is connected with a threaded joint (403), and the other ends of the side branch pipes (402) are respectively connected with a square flange (404) and a circular flange (405).

2. The pressure-dividing cylinder for testing pipeline pressure according to claim 1, wherein the branch main pipe (401) is further provided with a pressure gauge mounting hole (406).

3. The pressure-testing pressure-dividing cylinder according to claim 2, wherein the wall of the pressure gauge mounting hole (406) is provided with a first sealing washer (407).

4. The pipe pressure test pressure-dividing cylinder according to claim 1, wherein the plurality of branch pipes (4) have different outer diameters of pipes.

5. The cylinder according to claim 1, wherein valves (5) are provided on the water injection pipe (2), the water discharge pipe (3) and the plurality of branch pipes (4).

6. The pressure-dividing cylinder for testing the pipeline pressure according to claim 1, further comprising a plurality of pipeline sealing devices (6), wherein each pipeline sealing device (6) comprises a fixing plate (601), a mounting plate (603) spaced from the fixing plate (601) by a plurality of first screws (602), and a sealing mechanism (604) disposed on the mounting plate (603), the plurality of first screws (602) are respectively in threaded connection with the fixing plate (601) and the mounting plate (603), and a pipeline mounting hole (6011) for sleeving the pipeline sealing device (6) on the pipeline is formed in the fixing plate (601).

7. The cylinder according to claim 6, wherein two sides of the fixing plate (601) are further respectively connected with a second screw rod (605) by screw threads, and the two second screw rods (605) respectively penetrate through the wall of the pipe installation hole (6011).

8. The pressure-dividing cylinder for testing the pipeline pressure according to claim 6, wherein the sealing mechanism (604) comprises a sealing block (6041), a third lead screw (6042) and a plurality of squeezing assemblies (6043), the third lead screw (6042) is connected to the sealing block (6041) in a threaded manner, a first sliding groove (6044) for the top end of the third lead screw (6042) to slide is formed in the sealing block (6041), a plurality of penetrating second sliding grooves (6045) are formed in the groove wall of the first sliding groove (6044), and the squeezing assemblies (6043) are arranged in the second sliding groove (6045) in a one-to-one corresponding manner.

9. The pressure-testing pressure-dividing cylinder according to claim 8, characterized in that the top end of the third lead screw (6042) is further provided with a conical block (6046), the conical block (6046) can slide in the first sliding groove (6044), and the second sliding grooves (6045) are respectively opened on the bottom groove wall of the first sliding groove (6044).

10. The tube pressure testing split cylinder according to claim 8, wherein the squeeze assembly (6043) comprises a first slider (6047), a second slider (6048), and a spring (6049) connecting the first slider (6047) and the second slider (6048), the sealing mechanism (604) further comprises a second sealing washer (6040), and the second sealing washer (6040) is connected to a plurality of the second sliders (6048).