CN219265952U

CN219265952U - Device for testing volume residual deformation rate of winding gas cylinder

Info

Publication number: CN219265952U
Application number: CN202223472497.6U
Authority: CN
Inventors: 裴东林; 李长云; 洛边克哈; 杨军; 姜海涛; 唐建平; 李忠俊; 刘瀚阳; 张俊蓝; 刘晟志
Original assignee: Sinopec Oilfield Service Corp; Sinopec Southwest Petroleum Engineering Co Ltd Oilfield Engineering Service Branch
Current assignee: Sinopec Oilfield Service Corp; Sinopec Southwest Petroleum Engineering Co Ltd Oilfield Engineering Service Branch
Priority date: 2022-12-25
Filing date: 2022-12-25
Publication date: 2023-06-27
Anticipated expiration: 2032-12-25

Abstract

The utility model discloses a device for testing the volume residual deformation rate of a wound gas cylinder, which belongs to the field of container deformation rate testing and comprises a water jacket, a cover body detachably connected with the water jacket, a pressurizing device, an electronic balance, a measuring cup and a water supply tank; the water outlet of the pressurizing device is connected with the cover body through a pressure water injection pipe, and a pressure detection module is arranged on the pressure water injection pipe; the water inlet of the supercharging device is connected with the water jacket through a backflow water pipe, the side surface of the backflow water pipe is connected with a water supply pipe, and one end of the water supply pipe is positioned in the water supply tank; the measuring cup is positioned on the detection table of the electronic balance, and the measuring cup is connected with the water jacket through a water pipe. According to the utility model, the volume change outside the air respirator gas cylinder is utilized to squeeze and overflow water in the water jacket filled with water, and the increase of the water in the measuring cup is measured through the electronic balance, so that the residual deformation can be directly and accurately obtained, and the volume residual deformation rate is rapidly obtained through calculation, so that the measurement reliability is higher.

Description

Device for testing volume residual deformation rate of winding gas cylinder

Technical Field

The utility model relates to the field of container deformation rate testing, in particular to a device for testing the volume residual deformation rate of a winding gas cylinder.

Background

The winding gas cylinder is a container for containing liquid or gaseous substances, such as an air respirator gas cylinder, and a gas cylinder hydraulic test is required before the winding gas cylinder is put into use; the hydrostatic test is one of the most direct and effective means for checking the performance of the gas cylinder, and is divided into a pressure test and a volume residual deformation rate test.

The volume residual deformation rate test is a relatively simple and accurate method for reflecting the plastic deformation degree of the gas cylinder body, and the volume residual deformation rate= [ volume residual deformation value/volume full deformation value ] ×100% is proved by theoretical research and hydraulic test to be in direct proportion to the stress generated by the wall of the gas cylinder. The magnitude of the volumetric elastic deformation directly reflects the level of the stress of the bottle wall, and the strength of the gas bottle determines the stress level born by the bottle wall, so the magnitude of the volumetric residual deformation value is one of the important criteria for evaluating the qualification, the degradation and the waste judgment of the gas bottle.

The currently used device for testing the residual deformation rate of the volume of the air respirator gas cylinder is used for detecting the containing amount of the air respirator gas cylinder under different pressures, the residual deformation amount (the front value and the rear value are subtracted) is obtained through calculation, the volume of the containing material (generally water) is also changed under the high-pressure and low-pressure states, and the reliability of the detection result is poor.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a device for testing the volume residual deformation rate of a winding gas cylinder.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the device for testing the volume residual deformation rate of the winding gas cylinder comprises a water jacket, a cover body detachably connected with the water jacket, a pressurizing device, an electronic balance, a measuring cup and a water supply tank;

the water outlet of the pressurizing device is connected with the cover body through a pressure water injection pipe, one end of the pressure water injection pipe penetrates through the cover body and is connected with a special connector, and a pressure detection module is arranged on the pressure water injection pipe;

the water inlet of the supercharging device is connected with the water jacket through a backflow water pipe, a first control valve and a second control valve are arranged on the backflow water pipe, a water supply pipe is connected between the first control valve and the second control valve and positioned on the side surface of the backflow water pipe, and one end of the water supply pipe is positioned in the water supply tank;

the measuring cup is positioned on the detection table of the electronic balance, and the measuring cup is connected with the water jacket through a water pipe;

the side of the water jacket is connected with a water injection column, the top of the water injection column is connected with a water injection tank, and a third control valve is arranged on the water injection column.

As a further description of the above technical solution:

the pressure detection module comprises a pressure sensor, a detection pressure gauge, a precision pressure gauge and a pressurizing outlet pressure gauge, wherein the pressurizing outlet pressure gauge is close to a water outlet of the pressurizing device.

As a further description of the above technical solution:

the water jacket is characterized in that a placing table is fixedly arranged at the inner bottom of the water jacket, a placing opening is formed in the top of the placing table, and a through opening is formed in the side face of the placing opening and located at the bottom end of the placing table.

As a further description of the above technical solution:

the side of the water injection column is provided with a standard line which is flush with the water level when the water jacket is filled with water.

As a further description of the above technical solution:

a water outlet is arranged on the side surface of the water jacket and close to the bottom.

As a further description of the above technical solution:

the top of the water jacket is provided with a rotary clamping cylinder.

The utility model has the following beneficial effects:

1. compared with the prior art, this patent adopts outside method, utilizes the outside volume change of air respirator gas cylinder promptly, extrudes the water that overflows in the water jacket with filling water to through the increase of the water in the electronic balance measurement measuring cup, can directly be accurate obtain residual deformation, through calculating quick obtain volume residual deformation rate, make the measurement reliability higher.

2. Compared with the prior art, this patent is through setting up the water injection post, and it can be convenient with the inside water filling of water jacket (the intercommunication ware principle), and the signal of the inside water filling of water jacket can be accurately obtained to the standard line on it, is convenient for operate and use.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at B;

FIG. 3 is a schematic front view of the present utility model;

FIG. 4 is an enlarged view of FIG. 3 at A;

fig. 5 is a schematic diagram of a pressure detection module.

Wherein the water jacket is partially sectioned in fig. 3.

Legend description:

1. a water jacket; 2. a cover body; 3. a pressure water injection pipe; 4. a special joint; 5. a rotary clamping cylinder; 6. a pressure detection module; 61. a pressure sensor; 62. detecting a pressure gauge; 63. a precision pressure gauge; 64. a boost outlet pressure gauge; 7. a supercharging device; 8. a water supply tank; 9. a water supply pipe; 10. a return water pipe; 11. a first control valve; 12. a second control valve; 13. a water outlet; 14. a water injection column; 15. a third control valve; 16. a water filling tank; 17. a standard line; 18. an electronic balance; 19. a measuring cup; 20. a water pipe; 21. a placement table; 22. a through port; 23. the mouth is placed.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, the volume residual deformation rate testing device for the wrapped gas cylinder provided by the utility model comprises: comprises a water jacket 1, a cover body 2 detachably connected with the water jacket 1, a supercharging device 7, an electronic balance 18, a measuring cup 19 and a water supply tank 8.

The water jacket 1 is a rigid container, when the cover body 2 is opened, the gas cylinder to be detected is put into the water jacket 1, the special connector 4 is connected with the liquid inlet of the gas cylinder, and then the cover body 2 is sealed and covered, and the experiment is waited.

The water outlet of the pressurizing device 7 is connected with the cover body 2 through the pressure water injection pipe 3, one end of the pressure water injection pipe 3 penetrates through the cover body 2 and is connected with a special joint 4 (the special joint 4 is in corresponding relation with the joint of the detected gas cylinder), and the pressure water injection pipe 3 is provided with a pressure detection module 6; the water inlet of the supercharging device 7 is connected with the water jacket 1 through a backflow water pipe 10, a first control valve 11 and a second control valve 12 are arranged on the backflow water pipe 10, a water supply pipe 9 is connected between the first control valve 11 and the second control valve 12 on the side face of the backflow water pipe 10, and one end of the water supply pipe 9 is located in the water supply tank 8.

When the pressurizing device 7 is operated, water in the water supply tank 8 can be pressurized and supplied to the gas cylinder to be inspected, and when a certain pressure is maintained (generally about 45 MPa), the volume of the outside of the gas cylinder to be inspected increases.

The measuring cup 19 is positioned on the detection table of the electronic balance 18, and the measuring cup 19 is connected with the water jacket 1 through a water pipe 20.

Before the experiment starts, the water jacket 1 needs to be filled with water, and when the gas cylinder to be detected is pressurized, the increased volume of the gas cylinder to be detected can squeeze the water in the water jacket 1 to squeeze the water into the 19-position of the measuring cup.

When the detected gas cylinder is depressurized, the volume of the detected gas cylinder is contracted, negative pressure is formed in the water jacket 1, overflowed partial water is sucked back (sucked water is necessarily smaller than extruded water), and the volume of residual water in the measuring cup 19 is the residual volume of the gas cylinder.

The side of the water jacket 1 is connected with a water injection column 14, the top of the water injection column 14 is connected with a water injection tank 16, and a third control valve 15 is arranged on the water injection column 14.

When water is injected into the water jacket 1, a user adds water into the water injection tank 16, the water flows into the water jacket 1 through the water injection column 14, the water injection column 14 is relatively long and relatively high, when the liquid level in the water jacket 1 exceeds the water level when water is filled in the water jacket 1, the water inside the water jacket 1 can be represented to be full, and after the water is full, the third control valve 15 is closed, so that the water jacket is convenient to use.

The pressure detection module 6 comprises a pressure sensor 61, a detection pressure gauge 62, a precision pressure gauge 63 and a pressurizing outlet pressure gauge 64, wherein the pressurizing outlet pressure gauge 64 is close to a water outlet of the pressurizing device 7.

The pressure sensor 61 can read, and can transmit detected data to a computer, the precision pressure gauge 63 is used for calibrating other meters, the value of the pressure sensor 61 is compared, and whether the pressure sensor 61 is normal or not can be judged, and the supercharging outlet pressure gauge 64 is used for directly measuring the water outlet pressure of the supercharging device 7.

The water jacket 1 is fixedly provided with a placing table 21 at the inner bottom, the top of the placing table 21 is provided with a placing opening 23, the side surface of the placing opening 23 is provided with a through opening 22 at the bottom end of the placing table 21.

The placement opening 23 is conical with a large upper part and a small lower part, corresponds to the bottom of the detected gas cylinder, is convenient for ensuring stable placement of the detected gas cylinder in a vertical state, and the design of the through opening 22 ensures that a bottom space area (the bottom surface of the detected gas cylinder blocks a section of the placement opening 23 at the moment to form a space area) is communicated with an external area.

The side of the water injection column 14 is provided with a standard line 17 which is flush with the water level when the water jacket 1 is filled with water, so that the water injection column is convenient for a user to observe.

The side face of the water jacket 1 and close to the bottom are provided with a water outlet 13, the water jacket is used for draining water, and a blocking cover is connected to the water outlet 13 during detection.

The top of the water jacket 1 is provided with a rotary clamping cylinder, so that the cover body 2 is convenient to install and use.

The device also comprises: and the computer control and data acquisition system is used for collecting data of the pressure sensor 61 and the electronic balance and intuitively obtaining the volume residual deformation rate through calculation.

Working principle: the pressure is increased to 45MPa through the pressurizing device 7, the detected gas cylinder is pressurized and expanded, the water jacket 1 is a rigid body filled with water, water flows into the measuring cup 19 along the water pipe 20, after the detected gas cylinder is depressurized, water in the measuring cup L returns to the water jacket 1 under the action of negative pressure, and the residual water volume of the measuring cup 19 is the residual deformation volume of the gas cylinder.

The method is to indirectly test the residual volume of the gas cylinder through a conversion formula of the mass and the volume, accurately measure the mass of the residual water by adopting an electronic balance 18 with the precision of 0.01g, and then calculate the residual water volume by using DeltaV=m/rho. Volume residual deformation = residual deformation divided by rated volume times 100%, the method is relatively simple compared with the inner method.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Winding gas cylinder volume residual deformation rate testing arrangement, its characterized in that: comprises a water jacket (1), a cover body (2) detachably connected with the water jacket (1), a supercharging device (7), an electronic balance (18), a measuring cup (19) and a water supply tank (8);

the water outlet of the pressurizing device (7) is connected with the cover body (2) through a pressure water injection pipe (3), one end of the pressure water injection pipe (3) penetrates through the cover body (2) and is connected with a special joint (4), and a pressure detection module (6) is arranged on the pressure water injection pipe (3);

the water inlet of the supercharging device (7) is connected with the water jacket (1) through a backflow water pipe (10), a first control valve (11) and a second control valve (12) are arranged on the backflow water pipe (10), a water supply pipe (9) is connected between the first control valve (11) and the second control valve (12) on the side face of the backflow water pipe (10), and one end of the water supply pipe (9) is positioned in the water supply tank (8);

the measuring cup (19) is positioned on a detection table of the electronic balance (18), and the measuring cup (19) is connected with the water jacket (1) through a water delivery pipe (20);

the side of water jacket (1) is connected with water injection post (14), the top of water injection post (14) is connected with water injection box (16), be provided with third control valve (15) on water injection post (14).

2. The wrapped cylinder volume residual deformation rate testing device according to claim 1, wherein: the pressure detection module (6) comprises a pressure sensor (61), a detection pressure gauge (62), a precision pressure gauge (63) and a pressurizing outlet pressure gauge (64), wherein the pressurizing outlet pressure gauge (64) is close to a water outlet of the pressurizing device (7).

3. The wrapped cylinder volume residual deformation rate testing device according to claim 1, wherein: the water jacket is characterized in that a placing table (21) is fixedly arranged at the inner bottom of the water jacket (1), a placing opening (23) is formed in the top of the placing table (21), and a through opening (22) is formed in the side face of the placing opening (23) and located at the bottom end of the placing table (21).

4. The wrapped cylinder volume residual deformation rate testing device according to claim 1, wherein: the side of the water injection column (14) is provided with a standard line (17) which is flush with the water level when the water jacket (1) is filled with water.

5. The wrapped cylinder volume residual deformation rate testing device according to claim 1, wherein: a water outlet (13) is arranged on the side surface of the water jacket (1) and close to the bottom.

6. The wrapped cylinder volume residual deformation rate testing device according to claim 1, wherein: the top of the water jacket (1) is provided with a rotary clamping cylinder.