Testing device for detecting performance of sealing material

Abstract

The utility model discloses a testing device for detecting the performance of a sealing material, which comprises a closed cylinder body, a high-pressure air source, a temperature measuring device, a first pressure measuring device and a second pressure measuring device, the cylinder body is provided with a manhole, an inflation inlet, a deflation pipeline, a leak detection hole, a temperature measuring device joint and a pressure measuring device joint, and the high-pressure air source is communicated with the inflation inlet; the temperature measuring equipment is hermetically connected with the temperature measuring equipment joint, and the first pressure measuring equipment is hermetically connected with the pressure measuring equipment joint; a lining is arranged on the inner wall of the cylinder body, and a sealing material to be detected is fixed on the surface of the lining; the leak detection hole penetrates through the side wall of the cylinder, and the leak detection hole and the sealing material are arranged on the two opposite sides of the lining respectively. According to the testing device disclosed by the utility model, the testing environment is changed by adjusting parameters such as inflation and deflation time, the sealing design is changed by adjusting parameters such as the type and the thickness of the sealing material, and a plurality of groups of testing results can be obtained through different combinations of the testing environment and the sealing design, so that the most suitable sealing material is screened out.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground high-pressure gas storage, and in particular relates to a test device for detecting the performance of sealing materials. Background Art

[0002] Compressed air energy storage technology is a key technology to achieve peak shaving and valley filling in conventional power systems, and to improve the efficiency, safety, and economy of conventional energy generation and transmission. It is also the core foundation for promoting open sharing and flexible trading of energy production and consumption, achieving multi-energy synergy, building an energy Internet, and promoting power system reform. Accelerating the development of energy storage technology and industry is of great strategic significance for building a "clean, low-carbon, safe and efficient" modern energy industry system and promoting energy transformation.

[0003] The underground high-pressure gas storage is an important part of the compressed air energy storage power station. It is responsible for storing high-pressure air. The sealing performance of the gas storage is not only related to the overall operating efficiency of the energy storage power station, but also to the safe operation of the gas storage and the power station. If the sealing material is not suitable, it is very likely to cause leakage in the gas storage, resulting in low overall operating efficiency of the power station, and even easily causing production safety problems. Therefore, it is necessary to select a suitable sealing material to seal the gas storage before the power station is officially put into production, which has a very important impact on the overall operation of the compressed air energy storage power station. Utility Model Content

[0004] In view of the above problems, the utility model aims to provide a test device for detecting the performance of sealing materials, which is used to test the performance of sealing materials used in underground gas storage facilities, so as to screen out the most suitable sealing materials.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A test device for detecting the performance of sealing materials, whose structural characteristics are: comprising a closed cylinder, a high-pressure gas source, a temperature measuring device, a first pressure measuring device and a second pressure measuring device; the cylinder is provided with a manhole, an inflation port, an air release pipe, a leak detection hole, a temperature measuring device joint and a pressure measuring device joint, the high-pressure gas source is connected to the inflation port; the temperature measuring device is sealedly connected to the temperature measuring device joint, and the first pressure measuring device is sealedly connected to the pressure measuring device joint; a lining is provided on the inner wall of the cylinder, and the sealing material to be detected is fixed on the surface of the lining; the leak detection hole runs through the side wall of the cylinder, the leak detection hole and the sealing material are respectively arranged on opposite sides of the lining, and the second pressure measuring device is used to monitor the pressure at the leak detection hole.

[0007] Before using the test device of the utility model, enter into the cylinder through the manhole and fix the sealing material to be tested on the lining surface, and then close the manhole. When the test device is in use, fill the cylinder with air through the high-pressure gas source, close the venting pipe, and execute the inflation process; close the high-pressure gas source, open the venting pipe to discharge air from the cylinder to the outside, and execute the deflation process. The inflation-deflation process of the underground gas storage is simulated by cyclically executing the "inflation-deflation" process. The temperature measuring device records the real-time temperature value in the cylinder, and the first pressure measuring device records the real-time pressure value in the cylinder. The temperature and pressure value changes in the cylinder can be used to monitor whether the test is operating normally. When the sealing material is not damaged, the second pressure measuring device connected to the leak detection hole will not have a change in the pressure value; when the sealing material is damaged, the pressure measuring device connected to the leak detection hole will have a change in the pressure value. The test environment can be changed by adjusting parameters such as the inflation and deflation time, and the sealing design can be changed by adjusting parameters such as the type and thickness of the sealing material. Through different combinations of test environments and sealing designs in various situations, multiple groups of test results can be obtained, thereby screening out the most suitable sealing material.

[0008] Preferably, the sealing material is fixedly connected to the lining by an anchor, and the lining is a concrete lining. One end of the anchor extends into the concrete lining, and the other end extends into the sealing material, thereby fixing the sealing material. The concrete lining can be cast during the on-site test, and the sealing material can be constructed after the concrete strength is reached. This setting method of the sealing material simulates the real engineering scene in the underground gas storage. The state change of the sealing material in the test is the same as that in actual production, which greatly improves the accuracy of the test results.

[0009] In order to facilitate the pouring of concrete lining, preferably, an annular steel formwork is provided on the inner wall of the cylinder, and the annular steel formwork is used for pouring the lining.

[0010] Preferably, the inner wall of the cylinder is provided with a plurality of linings along the circumferential direction, and the leak detection holes are provided with a plurality of holes, and the leak detection holes correspond to the linings one by one. Different sealing materials can be arranged at the plurality of linings, and the optimal arrangement and combination of the optimal sealing materials can be obtained through experiments.

[0011] Preferably, a safety valve is provided on the cylinder, and an air outlet end of the safety valve is connected to the air release pipe.

[0012] Specifically, manholes are provided on the left and right opposite sides of the cylinder.

[0013] Preferably, the inflation port, the deflation pipe, the temperature measuring device connector and the pressure measuring device connector are all arranged at the upper part of the cylinder.

[0014] Specifically, the cylinder is supported by relatively arranged supports.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The test device for detecting the performance of sealing materials of the utility model can obtain different sealing material combinations and different test results by adjusting parameters such as the inflation and deflation time, the type of sealing material, and the laying thickness of the sealing material at the same test site, thereby screening out the optimal arrangement combination of the sealing materials, greatly reducing the test cost, shortening the test time, being conducive to determining the optimal material combination as soon as possible, and improving the test efficiency.

[0017] 2. The test device for detecting the performance of sealing materials of the utility model performs the test by pouring concrete on site, which simulates the real process of inflation and deflation. The state change of the sealing material in the test is the same as that in actual production, which greatly improves the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the longitudinal section structure of the test device for detecting the performance of sealing materials of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the left view structure.

[0020] In the figure:

[0021] 1-manhole, 2-inflating port, 3-deflation pipe, 4-cylinder, 5-leak detection hole, 6-annular steel formwork, 7-lining, 8-sealing material, 9-temperature measuring equipment connector, 10-pressure measuring equipment connector, 11-safety valve, 12-support. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0023] like Figure 1 and Figure 2 As shown, this embodiment provides a test device for testing the performance of sealing materials, including a cylinder 4, which is a steel cylinder, and the left and right sides of the cylinder 4 are supported by oppositely arranged supports 12. Both left and right ends of the cylinder 4 are provided with manholes 1, and the upper part of the cylinder 4 is provided with an air filling port 2, an air release pipe 3, a temperature measuring device connector 9, a pressure measuring device connector 10 and a safety valve 11, and the air outlet end of the safety valve 11 is connected to the air release pipe 3. Figure 2As shown, the cylinder 4 is provided with four leak detection holes 5 along the circumferential direction, and the leak detection holes 5 penetrate the side wall of the cylinder 4. Four annular steel templates 6 are provided on the inner wall of the cylinder 4, and the annular steel templates 6 are used for pouring concrete lining 7, and the positions of the leak detection holes 5 and the annular steel templates 6 correspond one to one.

[0024] The utility model provides a test method for a test device for detecting the performance of a sealing material as follows:

[0025] 1) Experimental preparation

[0026] The manhole 1 is opened, and the technician enters the cylinder 4, and pours the concrete lining 7 in the annular steel formwork 6. After the concrete strength is reached, the sealing material 8 is constructed, and the sealing material 8 is fixed to the concrete lining 7 by an anchor, one end of the anchor extends into the concrete lining 7, and the other end of the anchor extends into the sealing material 8. After the construction is completed, the technician drills out of the manhole 1 and closes the manhole 1.

[0027] 2) Test process

[0028] The high-pressure gas source is connected to the inflation port 2 and fills air into the steel cylinder, closes the deflation pipe 3, and performs the inflation process; closes the high-pressure gas source, opens the deflation pipe 3 and discharges air from the cylinder 4 to the outside, and performs the deflation process. The inflation-deflation process of the underground cave gas storage is simulated by cyclically executing the "inflation-deflation" process. The temperature measuring device is sealed and connected to the temperature measuring device joint 9 to record the real-time temperature value in the steel cylinder 4; the first pressure measuring device is sealed and connected to the pressure measuring device joint 10 to record the real-time pressure value in the steel cylinder 4; the temperature and pressure value changes in the steel cylinder 4 can monitor whether the test is running normally.

[0029] The leak detection hole 5 is externally connected to a second pressure measuring device. When the sealing material 8 is not damaged, the pressure value reading of the pressure measuring device at this location will not change; when the sealing material 8 is damaged, the pressure value reading of the pressure measuring device at this location will change.

[0030] The test environment is changed by adjusting the inflation and deflation process, the sealing design is changed by adjusting the type and thickness of the sealing material, and multiple groups of test results can be obtained through different combinations of test environments and sealing designs in various situations, so as to screen out the optimal arrangement combination of sealing materials.

[0031] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the embodiments by those skilled in the art fall within the scope defined by the claims attached to the present invention.

Claims

1. A test device for detecting the performance of sealing materials, characterized in that: The invention comprises a sealed cylinder (4), a high-pressure gas source, a temperature measuring device, a first pressure measuring device and a second pressure measuring device. The cylinder (4) is provided with a manhole (1), a gas charging port (2), a gas discharge pipe (3), a leak detection hole (5), a temperature measuring device connector (9) and a pressure measuring device connector (10). The high-pressure gas source is connected to the gas charging port (2). The temperature measuring device is sealedly connected to the temperature measuring device connector (9), and the first pressure measuring device is sealedly connected to the pressure measuring device connector (10); A lining (7) is provided on the inner wall of the cylinder (4), and a sealing material (8) to be tested is fixed on the surface of the lining (7); The leak detection hole (5) passes through the side wall of the cylinder (4), the leak detection hole (5) and the sealing material (8) are respectively arranged on opposite sides of the lining (7), and the second pressure measuring device is used to monitor the pressure at the leak detection hole (5).

2. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: The sealing material (8) is fixedly connected to the lining (7) via an anchor, and the lining (7) is a concrete lining.

3. The test device for detecting the performance of sealing materials according to claim 2, characterized in that: An annular steel formwork (6) is provided on the inner wall of the cylinder (4), and the annular steel formwork (6) is used for pouring the lining (7).

4. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: The inner wall of the cylinder (4) is provided with a plurality of linings (7) along the circumferential direction, and the leak detection holes (5) are provided with a plurality of linings (7), and the leak detection holes (5) correspond to the linings (7) one by one.

5. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: The cylinder (4) is provided with a safety valve (11), and the air outlet end of the safety valve (11) is connected to the air release pipeline (3).

6. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: Manholes (1) are provided on opposite left and right sides of the cylinder (4).

7. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: The inflation port (2), the deflation pipe (3), the temperature measuring device connector (9) and the pressure measuring device connector (10) are all arranged on the upper part of the cylinder (4).

8. The test device for detecting the performance of sealing materials according to claim 1, characterized in that: The cylinder (4) is supported by relatively arranged supports (12).

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