Airtightness detection device applied to double-membrane gas holder

Abstract

The utility model relates to the field of double-membrane gas holder detection devices, and discloses an air tightness detection device applied to a double-membrane gas holder, which comprises a main double-membrane gas holder, the lower surface of the main double-membrane gas holder is fixedly connected with a base, and the front end of the upper surface of the base is provided with a front shell. The front shell comprises a front shell, a second sealing clamping block and a limiting clamping groove, the rear end of the outer wall of the front shell is fixedly connected with a first flange plate, the outer wall of the rear end of the first flange plate is fixedly connected with a first sealing clamping block, and the middle of the inner wall of the limiting clamping groove is fixedly connected with a third sealing clamping block. According to the utility model, the front housing and the rear housing of the double-film gas holder are fixed together through the clamping cooperation between the plurality of sealing clamping blocks and the sealing clamping grooves, so that a user can clean and maintain the interior of the airtightness detection device by dismounting the rear housing, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of double-membrane gas cabinet detection devices, in particular to an airtightness detection device applied to a double-membrane gas cabinet. Background Art

[0002] A double-membrane gasholder is a device used to store and regulate natural gas, biogas and other gases. It is mainly composed of two layers of membrane structure, the inner membrane is responsible for the storage and protection of the gas, while the outer membrane plays a role in support and wind and rain protection. This design can effectively respond to changes in gas pressure, provide good air tightness and stability, and at the same time meet different usage requirements by adjusting the air pressure in the gasholder. Double-membrane gasholders are usually used in gas supply, energy storage, gas pressure regulation and other fields, and are common equipment in modern gas storage systems.

[0003] However, the traditional double-membrane gas cabinet air tightness detection device cannot effectively detect the condition of the double-membrane gas cabinet, and when the double-membrane gas cabinet is damaged or gas leaks, the device cannot detect and protect in a timely manner.

[0004] Therefore, those skilled in the art provide an airtightness detection device applied to a double-membrane gas cabinet to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose an air tightness detection device for double-membrane gasholders. Compared with most traditional air tightness detection devices of double-membrane gasholders, the air tightness detection device of the double-membrane gasholder is respectively provided with a front shell and a rear shell, thereby forming a chamber between the main double-membrane gasholder and the shell. The first pressure sensor detects the air pressure inside the main double-membrane gasholder, and the second pressure sensor confirms whether the main double-membrane gasholder has a gas leak by detecting the pressure in the chamber. The setting of the shell can provide an additional layer of protection, reducing the possibility of gas leakage when the main double-membrane gasholder is damaged. By setting two safety valves and air pressure sensors, it is helpful to monitor and control the operating status of the gasholder and the chamber in real time, reduce the risk of accidents, and thus improve the detection efficiency, accuracy and safety of the double-membrane gasholder by the device.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A gas tightness detection device for a double-membrane gasholder, comprising a main double-membrane gasholder, wherein the lower surface of the main double-membrane gasholder is fixedly connected to a base, a front shell is provided at the front end of the upper surface of the base, the front shell comprises a front outer shell, a second sealing block and a limit slot, a first flange is fixedly connected to the rear end of the outer wall of the front outer shell, a first sealing block is fixedly connected to the outer wall of the rear end of the first flange, and a third sealing block is fixedly connected to the middle of the inner wall of the limit slot;

[0008] A rear shell is provided at the rear end of the upper surface of the base, and the rear shell includes a rear outer shell, and second flanges are fixedly connected to both sides of the front end of the outer wall of the rear shell, and a first sealing groove is opened on the outer wall of the front end of the second flange, and a positioning ring is fixedly connected to the upper part of the front end of the outer wall of the rear shell, and a second sealing groove is opened in the middle of the inner wall of the positioning ring, and a limit block is fixedly connected to the lower surface of the rear shell, and a third sealing groove is opened in the middle of the inner wall of the limit block;

[0009] An internal safety valve is fixedly connected to the front end of the outer wall of the main double-membrane gas tank, an external safety valve is fixedly connected to one side of the middle part of the outer wall of the front end of the detection cabinet, a cabinet door is hingedly connected to the outer wall of the front end of the detection cabinet, and a first pressure sensor, a second pressure sensor and an alarm module are respectively fixedly connected to the inner wall of the rear end of the detection cabinet.

[0010] Through the above technical solution, compared with the air tightness detection devices of most traditional double-membrane gasholders, the front shell and the rear shell of the double-membrane gasholder are fixed together by the snap-fit ​​between multiple sealing blocks and sealing slots, so that the user can clean and maintain the interior of the air tightness detection device by disassembling the rear shell, thereby improving the service life of the device.

[0011] Furthermore, the front shell is fixedly connected to the front end of the upper surface of the base, and the rear shell is fixedly connected to the outer wall of the rear end of the front shell;

[0012] Through the above technical solution, the user can clean the interior of the device by cleaning the front shell and the rear shell.

[0013] Furthermore, an air inlet and outlet interface is fixedly connected to the center of the upper surface of the main double-membrane gas cabinet, and the second sealing block is fixedly connected to the rear end of the middle part of the outer wall of the air inlet and outlet interface;

[0014] Through the above technical solution, the air inlet and outlet interfaces can pass through the device without affecting the disassembly or installation of the rear shell.

[0015] Furthermore, the limit card slot is provided at the upper portion of the rear end of the outer wall of the base, and the limit card slot and the limit card block are engaged with each other;

[0016] Through the above technical solution, the rear shell can be snapped onto the base.

[0017] Furthermore, the first sealing card block is engaged with the first sealing card slot;

[0018] Through the above technical solution, the sealing between the first flange and the second flange is improved.

[0019] Furthermore, the second sealing card block is engaged with the second sealing card slot;

[0020] Through the above technical solution, the positioning ring can be fixed on the air inlet and outlet interfaces more tightly.

[0021] Furthermore, the third sealing card block is engaged with the third sealing card slot;

[0022] Through the above technical solution, the rear shell can be fixed on the base more tightly.

[0023] Furthermore, the rear housing is fixedly connected to the front housing via a first flange and a second flange;

[0024] Through the above technical solution, the user can dismantle the rear housing by removing the bolts on the first flange and the second flange.

[0025] The utility model has the following beneficial effects:

[0026] 1. The utility model proposes an air tightness detection device for a double-membrane gasholder. Compared with most traditional air tightness detection devices of double-membrane gasholders, the air tightness detection device of the double-membrane gasholder is respectively provided with a front shell and a rear shell, thereby forming a chamber between the main double-membrane gasholder and the shell. The first pressure sensor detects the air pressure inside the main double-membrane gasholder, and the second pressure sensor confirms whether there is a gas leak in the main double-membrane gasholder by detecting the pressure in the chamber. The setting of the shell can provide an additional layer of protection, reducing the possibility of gas leakage when the main double-membrane gasholder is damaged. By setting two safety valves and air pressure sensors, it is helpful to monitor and control the operating status of the gasholder and the chamber in real time, reduce the risk of accidents, and thus improve the detection efficiency, accuracy and safety of the double-membrane gasholder by the device.

[0027] 2. The utility model proposes an air tightness detection device for a double-membrane gas cabinet. Compared with most traditional air tightness detection devices of double-membrane gas cabinets, the front shell and the rear shell of the double-membrane gas cabinet are fixed together by the snap-fit ​​between multiple sealing blocks and sealing slots, so that the user can clean and maintain the interior of the air tightness detection device by disassembling the rear shell, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of an airtightness detection device for a double-membrane gas cabinet proposed in the present invention;

[0029] Figure 2 This is a schematic diagram of the front shell structure of an airtightness detection device applied to a double-membrane gas cabinet proposed in the utility model;

[0030] Figure 3 This is a schematic diagram of the rear shell structure of an airtightness detection device applied to a double-membrane gas cabinet proposed in the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of a detection cabinet for an airtightness detection device applied to a double-membrane gas cabinet proposed in the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of an internal safety valve of an airtightness detection device for a double-membrane gas cabinet proposed in the utility model;

[0033] Figure 6 for Figure 2 An enlarged schematic diagram of point B in FIG.

[0034] Figure 7 for Figure 2 A is an enlarged schematic diagram.

[0035] Legend:

[0036] 1. Main double-diaphragm gas tank; 2. Front shell; 201. Front outer shell; 202. First flange; 203. First sealing block; 204. Second sealing block; 205. Limiting card slot; 206. Third sealing block; 3. Rear shell; 301. Rear outer shell; 302. Second flange; 303. First sealing slot; 304. Positioning ring; 305. Second sealing slot; 306. Limiting card slot; 307. Third sealing slot; 4. Inlet and outlet gas interfaces; 5. Detection cabinet; 6. Internal safety valve; 7. External safety valve; 8. Cabinet door; 9. First pressure sensor; 10. Second pressure sensor; 11. Alarm module; 12. Base. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Reference Figure 1-7 , an embodiment provided by the utility model:

[0039] A gas tightness detection device for a double-membrane gasholder includes a main double-membrane gasholder 1. A base 12 is fixedly connected to the lower surface of the main double-membrane gasholder 1. A front shell 2 is provided at the front end of the upper surface of the base 12. The front shell 2 includes a front outer shell 201, a second sealing block 204, and a limiting slot 205. A first flange 202 is fixedly connected to the rear end of the outer wall of the front outer shell 201. A first sealing block 203 is fixedly connected to the outer wall of the rear end of the first flange 202. A third sealing block 206 is fixedly connected to the middle of the inner wall of the limiting slot 205.

[0040] A rear housing 3 is provided at the rear end of the upper surface of the base 12. The rear housing 3 includes a rear shell 301. Second flanges 302 are fixedly connected to both sides of the front end of the outer wall of the rear shell 301. A first sealing groove 303 is defined on the outer wall of the front end of the second flange 302. A positioning ring 304 is fixedly connected to the upper portion of the front end of the outer wall of the rear shell 301. A second sealing groove 305 is defined in the middle of the inner wall of the positioning ring 304. A limiting block 306 is fixedly connected to the lower surface of the rear shell 301. A third sealing groove 307 is defined in the middle of the inner wall of the limiting block 306.

[0041] The front shell 201 is fixedly connected to the front end of the upper surface of the base 12, and the rear shell 301 is fixedly connected to the outer wall of the rear end of the front shell 201, so that the user can clean the inside of the device through the front shell 201 and the rear shell 301. The front end of the outer wall of the main double-membrane gas tank 1 is fixedly connected to the internal safety valve 6, and the side of the middle of the front end outer wall of the detection cabinet 5 is fixedly connected to the external safety valve 7. The outer wall of the front end of the detection cabinet 5 is hingedly connected to the cabinet door 8, and the inner wall of the rear end of the detection cabinet 5 is respectively fixedly connected to the first pressure sensor 9, the second pressure sensor 10 and the alarm module 11.

[0042] Compared with most traditional double-membrane gasholder air tightness detection devices, the air tightness detection device of this double-membrane gasholder is respectively provided with a front shell 2 and a rear shell 3, thereby forming a chamber between the main double-membrane gasholder 1 and the shell. The first pressure sensor 9 detects the air pressure inside the main double-membrane gasholder 1, and the second pressure sensor 10 confirms whether there is a gas leak in the main double-membrane gasholder 1 by detecting the pressure in the chamber. The setting of the shell can provide an additional layer of protection, reducing the possibility of gas leakage when the main double-membrane gasholder 1 is damaged. By setting two safety valves and air pressure sensors, it is helpful to monitor and control the operating status of the gasholder and the chamber in real time, reduce the risk of accidents, and thus improve the efficiency, accuracy and safety of the device for double-membrane gasholder detection.

[0043] The center of the upper surface of the main double-membrane gas cabinet 1 is fixedly connected to the inlet and outlet air interface 4, and the second sealing block 204 is fixedly connected to the rear end of the middle part of the outer wall of the inlet and outlet air interface 4, so that the inlet and outlet air interface 4 can pass through the device without affecting the disassembly or installation of the rear shell 301. The limiting card groove 205 is opened at the upper part of the rear end of the outer wall of the base 12. The limiting card groove 205 and the limiting card block 306 are snap-fitted, so that the rear shell 301 can be snap-fitted to the base 12. The first sealing card block 203 is snap-fitted with the first sealing card groove 303, so that the first flange 202 and the second flange 30 2 is improved, the second sealing block 204 is engaged with the second sealing groove 305, so that the positioning ring 304 can be fixed more tightly on the inlet and outlet air interface 4, and the third sealing block 206 is engaged with the third sealing groove 307, so that the rear shell 301 can be fixed more tightly on the base 12, and the rear shell 301 is fixedly connected to the front shell 201 through the first flange 202 and the second flange 302, so that the user can disassemble the rear shell 301 by removing the bolts on the first flange 202 and the second flange 302.

[0044] Working principle: First, the rear shell 301 is fixed to the front shell 201 by bolts, and then the multiple sealing blocks and sealing slots are snap-fitted to achieve good sealing. Then, a relatively sealed chamber is formed between the shell and the main double-membrane gasholder 1. The air pressure in the chamber is lower than that in the main double-membrane gasholder 1. The first pressure sensor 9 detects the air pressure inside the main double-membrane gasholder 1. The second pressure sensor 10 confirms whether there is a gas leak in the main double-membrane gasholder 1 by detecting whether the pressure in the chamber changes. When the air pressure in the main double-membrane gasholder 1 is too high, it is discharged into the chamber under the action of the internal safety valve 6, thereby providing safe protection for the main double-membrane gasholder 1 and reducing gas leakage. The external safety valve 7 is used to protect the possibility of excessive air pressure in the chamber of the device.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An airtightness detection device for a double-membrane gas cabinet, comprising a main double-membrane gas cabinet (1) and a detection cabinet (5), characterized in that: The lower surface of the main double-membrane gas cabinet (1) is fixedly connected to a base (12), the front end of the upper surface of the base (12) is provided with a front shell (2), the front shell (2) comprises a front shell (201), a second sealing block (204) and a limit slot (205), the rear end of the outer wall of the front shell (201) is fixedly connected to a first flange (202), the outer wall of the rear end of the first flange (202) is fixedly connected to a first sealing block (203), and the middle part of the inner wall of the limit slot (205) is fixedly connected to a third sealing block (206); A rear shell (3) is provided at the rear end of the upper surface of the base (12), and the rear shell (3) includes a rear shell (301), and second flanges (302) are fixedly connected to both sides of the front end of the outer wall of the rear shell (301), and a first sealing groove (303) is provided on the outer wall of the front end of the second flange (302), and a positioning ring (304) is fixedly connected to the upper part of the front end of the outer wall of the rear shell (301), and a second sealing groove (305) is provided in the middle of the inner wall of the positioning ring (304), and a limiting block (306) is fixedly connected to the lower surface of the rear shell (301), and a third sealing groove (307) is provided in the middle of the inner wall of the limiting block (306); The front end of the outer wall of the main double-membrane gas cabinet (1) is fixedly connected to an internal safety valve (6), one side of the middle portion of the front end outer wall of the detection cabinet (5) is fixedly connected to an external safety valve (7), the front end outer wall of the detection cabinet (5) is hingedly connected to a cabinet door (8), and the rear end inner wall of the detection cabinet (5) is respectively fixedly connected to a first pressure sensor (9), a second pressure sensor (10) and an alarm module (11).

2. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The front shell (201) is fixedly connected to the front end of the upper surface of the base (12), and the rear shell (301) is fixedly connected to the outer wall of the rear end of the front shell (201).

3. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: An air inlet and outlet interface (4) is fixedly connected to the center of the upper surface of the main double-membrane gas cabinet (1), and the second sealing block (204) is fixedly connected to the rear end of the middle portion of the outer wall of the air inlet and outlet interface (4).

4. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The limiting slot (205) is provided at the upper portion of the rear end of the outer wall of the base (12), and the limiting slot (205) and the limiting block (306) are engaged with each other.

5. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The first sealing card block (203) is engaged with the first sealing card slot (303).

6. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The second sealing card block (204) is engaged with the second sealing card slot (305).

7. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The third sealing card block (206) is engaged with the third sealing card slot (307).

8. The airtightness detection device for a double-membrane gas cabinet according to claim 1, characterized in that: The rear housing (301) is fixedly connected to the front housing (201) via a first flange (202) and a second flange (302).

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