Gas storage pressure monitoring device

Abstract

The utility model discloses a gas storage pressure monitoring device, which belongs to the technical field of gas storage pressure monitoring, and can solve the problem that the existing pressure transmitter cannot bear high pressure in a gas storage and is difficult to monitor the pressure of the gas storage. The device comprises a pressure transmitter, one end of which is connected with a pressure tapping joint and the other end of which is connected with a cable; the protective cover is arranged on the pressure transmitter in a sleeving manner; the pressure taking joint and the cable respectively penetrate through the protective cover; a pressure leading hole is formed in the pressure taking connector, and the pressure transmitter is communicated with the external environment of the protective cover through the pressure leading hole; and the sealant is respectively filled among the protective cover, the pressure tapping joint and the cable and is used for respectively sealing gaps among the protective cover, the pressure tapping joint and the cable. The gas pressure monitoring device is used for monitoring the gas pressure in the gas storage.

Description

Technical Field

[0001] The utility model relates to a gas storage reservoir pressure monitoring device, belonging to the technical field of gas storage reservoir pressure monitoring. Background Art

[0002] Compressed air energy storage technology is regarded as a large-scale energy storage technology with great potential due to its large energy storage capacity, long life, high efficiency, safety and reliability. Gas storage is an important facility for storing compressed air in compressed air energy storage technology. It is generally located underground, lined with reinforced concrete, and surrounded by rock support. Since the pressure of compressed air is as high as 12MPa, the internal air pressure of the gas storage is extremely high. The concrete lining structure and sealing layer of the gas storage are at risk of leakage under the action of high pressure. Therefore, it is necessary to monitor the pressure inside the gas storage to ensure the safe and stable operation of the gas storage.

[0003] Pressure transmitter is a commonly used instrument for monitoring the air pressure in pressure vessels. On traditional pressure transmitters, only the pressure tapping joint and the pressure inlet hole can withstand high pressure, while the rest cannot withstand high pressure. Therefore, the installation method of the pressure transmitter is to connect the pressure tapping joint to the pressure vessel through the interface thread, so that the pressure inlet hole on the pressure tapping joint is connected to the inside of the pressure vessel, and the rest of the pressure transmitter that cannot withstand high pressure is placed outside the pressure vessel to avoid damage to the pressure transmitter.

[0004] However, since the compressed air storage is located underground and surrounded by rock, the traditional installation method cannot be used; and if the pressure transmitter is placed directly in the gas storage, the pressure transmitter cannot withstand the high pressure in the gas storage and will not work properly, making it difficult to monitor the pressure of the gas storage. Utility Model Content

[0005] The utility model provides a gas storage reservoir pressure monitoring device, which can solve the problem that the existing pressure transmitter cannot withstand the high pressure in the gas storage reservoir and is difficult to monitor the pressure of the gas storage reservoir.

[0006] The utility model provides a gas storage pressure monitoring device, the device comprising:

[0007] A pressure transmitter, one end of which is connected to a pressure tapping connector and the other end is connected to a cable;

[0008] A protective cover is sleeved on the pressure transmitter; the pressure tapping connector and the cable respectively penetrate the protective cover; a pressure inlet hole is provided on the pressure tapping connector, and the pressure inlet hole connects the pressure transmitter with the external environment of the protective cover;

[0009] Sealant is filled between the protective cover and the pressure-taking connector and the cable, respectively, and is used to seal the gaps between the protective cover and the pressure-taking connector and the cable, respectively.

[0010] Optionally, the protective cover comprises:

[0011] A cylinder, which is sleeved on the pressure transmitter and has openings at both ends;

[0012] A first cover body, which is disposed on the opening at one end of the cylinder body and is used to close the opening at one end of the cylinder body, and the pressure tapping connector passes through the first cover body;

[0013] A second cover body; a cover is arranged on the opening at the other end of the cylinder body, and is used to close the opening at the other end of the cylinder body; the cable passes through the second cover body.

[0014] Optionally, the cylinder is threadedly connected to the first cover body and the second cover body respectively.

[0015] Optionally, sealing rings are respectively provided at gaps between the cylinder and the first cover body and the second cover body.

[0016] Optionally, a heat insulation layer is provided on the inner wall of the protective cover.

[0017] Optionally, the sealant is casting glue.

[0018] Optionally, the cable is a high temperature and high voltage resistant cable.

[0019] Optionally, the cylinder, the first cover and the second cover are all made of high-pressure resistant metal material.

[0020] Optionally, a gland is provided on the second cover body, and the cable passes through the gland; and the sealant is filled between the gland and the first cover body and the cable respectively.

[0021] The beneficial effects that the utility model can produce include:

[0022] The utility model protects the pressure transmitter by arranging a high-pressure resistant protective cover outside the pressure transmitter, so that the pressure transmitter can be applied to high-pressure environments such as underground gas storage reservoirs, thereby facilitating the pressure transmitter to monitor the gas pressure in the underground gas storage reservoir and ensuring the safe and stable operation of the underground gas storage reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a gas storage pressure monitoring device provided in an embodiment of the utility model.

[0024] Reference numerals:

[0025] 1. Pressure-introducing hole; 2. Pressure-taking joint; 3. Sealant; 4. First cover; 5. Cylinder; 6. Insulation layer; 7. Pressure transmitter; 8. Second cover; 9. Cable gland; 10. Cable; 11. Sealing ring. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0027] The utility model provides a gas storage pressure monitoring device, such as Figure 1 As shown, the device comprises:

[0028] A pressure transmitter 7, one end of which is connected to a pressure tapping connector 2, and the other end of which is connected to a cable 10;

[0029] The protective cover is sleeved on the pressure transmitter 7; the pressure tapping connector 2 and the cable 10 respectively penetrate the protective cover; the pressure tapping connector 2 is provided with a pressure inlet hole 1, and the pressure inlet hole 1 connects the pressure transmitter 7 with the external environment of the protective cover;

[0030] The sealant 3 is filled between the protective cover and the pressure-taking connector 2 and the cable 10 respectively, so as to seal the gaps between the protective cover and the pressure-taking connector 2 and the cable 10 respectively.

[0031] Specifically, the material of the protective cover is a high-pressure resistant metal material such as a high-pressure alloy.

[0032] Since the protective cover is made of high-pressure resistant metal material, it can withstand the high air pressure in the gas storage reservoir. By installing the protective cover on the pressure transmitter 7 and sealing the gap between the protective cover and the pressure tapping connector 2 and the cable 10, the main structure of the pressure transmitter 7 that is not resistant to high pressure and located inside the protective cover can be isolated from the high-pressure environment in the gas storage reservoir. This can prevent the high air pressure from damaging the main structure of the pressure transmitter 7 and ensure the accuracy and timeliness of the monitoring data.

[0033] When in use, the device is placed directly in the inner cavity of the gas storage reservoir, so that the pressure-inlet hole 1 in the pressure-taking joint 2 of the pressure transmitter 7 is connected to the inner cavity of the gas storage reservoir, and the cable 10 of the pressure transmitter 7 is pulled outside the gas storage reservoir and connected to the power supply system, control system, data acquisition system, etc., and then the air pressure of the gas storage reservoir can be monitored.

[0034] Specifically, the protective cover includes:

[0035] The cylinder 5 is sleeved on the pressure transmitter 7 and has openings at both ends;

[0036] The first cover body 4 is disposed on the opening at one end of the cylinder body 5 to close the opening at one end of the cylinder body 5. The pressure-taking joint 2 passes through the first cover body 4. In this embodiment, the pressure-taking joint 2 is threadedly connected to the first cover body 4.

[0037] The second cover 8 is provided on the opening at the other end of the cylinder 5 to close the opening at the other end of the cylinder 5 ; the cable 10 passes through the second cover 8 .

[0038] Specifically, the cylinder 5, the first cover 4 and the second cover 8 are all made of high-pressure resistant metal materials such as high-pressure alloys.

[0039] Specifically, the cylinder body 5 is threadedly connected to the first cover body 4 and the second cover body 8 respectively.

[0040] Specifically, sealing rings 11 are respectively provided at the gaps between the cylinder 5 and the first cover 4 and the second cover 8. Since the high pressure in the gas storage leads to a high temperature in the gas storage, the sealing ring 11 in this embodiment is a high temperature resistant sealing ring 11.

[0041] Specifically, a heat insulating layer 6 is provided on the inner wall of the protective cover. The heat insulating layer 6 in this embodiment is a heat insulating coating, which can effectively prevent the higher temperature in the gas storage from affecting the operation of the pressure transmitter 7.

[0042] Specifically, the sealant 3 is a casting glue, which can ensure that the gap filled by it is tight and sealed.

[0043] Specifically, the cable 10 is a high temperature and high voltage resistant cable 10 .

[0044] Specifically, a gland 9 is provided on the second cover 8, and the cable 10 passes through the gland 9, and the gland 9 is used to fix the cable 10. The sealant 3 is filled between the gland 9 and the first cover 4 and the cable 10, respectively, to seal the gap between the gland 9 and the first cover 4 and the cable 10.

[0045] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A gas storage pressure monitoring device, characterized in that: The device comprises: A pressure transmitter, one end of which is connected to a pressure tapping connector and the other end is connected to a cable; A protective cover is sleeved on the pressure transmitter; the pressure tapping connector and the cable respectively penetrate the protective cover; a pressure inlet hole is provided on the pressure tapping connector, and the pressure inlet hole connects the pressure transmitter with the external environment of the protective cover; Sealant is filled between the protective cover and the pressure-taking connector and the cable, respectively, and is used to seal the gaps between the protective cover and the pressure-taking connector and the cable, respectively.

2. The device according to claim 1, characterized in that The protective cover comprises: A cylinder, which is sleeved on the pressure transmitter and has openings at both ends; A first cover body, which is disposed on the opening at one end of the cylinder body and is used to close the opening at one end of the cylinder body, and the pressure tapping connector passes through the first cover body; A second cover body; a cover is arranged on the opening at the other end of the cylinder body, and is used to close the opening at the other end of the cylinder body; the cable passes through the second cover body.

3. The device according to claim 2, characterized in that The cylinder is threadedly connected to the first cover body and the second cover body respectively.

4. The device according to claim 3, characterized in that Sealing rings are respectively arranged at gaps between the cylinder and the first cover body and the second cover body.

5. The device according to claim 1, characterized in that A heat insulation layer is arranged on the inner wall of the protective cover.

6. The device according to claim 1, characterized in that The sealant is a casting glue.

7. The device according to claim 1, characterized in that The cable is a high temperature and high voltage resistant cable.

8. The device according to claim 2, characterized in that The cylinder, the first cover and the second cover are all made of high-pressure resistant metal material.

9. The device according to claim 2, characterized in that The second cover body is provided with a gland, and the cable passes through the gland; the sealant is respectively filled between the gland and the first cover body and the cable.

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