CN217498833U - Safe buffering and storing system of methane gas cabinet produced by sewage treatment - Google Patents
Safe buffering and storing system of methane gas cabinet produced by sewage treatment Download PDFInfo
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- CN217498833U CN217498833U CN202221397643.0U CN202221397643U CN217498833U CN 217498833 U CN217498833 U CN 217498833U CN 202221397643 U CN202221397643 U CN 202221397643U CN 217498833 U CN217498833 U CN 217498833U
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Abstract
The utility model discloses a sewage treatment produces marsh gas holder safety buffering storage system belongs to sewage treatment technical field. The technical scheme is as follows: comprises a marsh gas input pipeline and a marsh gas output pipeline; the biogas input pipeline comprises an anaerobic tank, a water-sealed tank and a double-membrane gas holder which are sequentially communicated through pipelines; an anaerobic tank emptying pipeline is arranged on a pipeline between the anaerobic tank and the water-sealed tank; the double-membrane gas holder is provided with an inner membrane, an outer membrane pressure protector, a pressure display meter and a height display meter, wherein the outer membrane is provided with a gas hole, and the outer membrane pressure protector is communicated with the gas hole; a drainage pipeline is also arranged on the double-membrane gas cabinet and is connected with the water collecting tank; one end of the marsh gas output pipeline is connected with the double-membrane gas holder, and the other end of the marsh gas output pipeline is connected with marsh gas using equipment. The utility model discloses utilize two membrane gas cabinets as buffering storage facilities, can guarantee the safe discharge of anaerobic jar marsh gas, can be again when the marsh gas volume of anaerobic jar production is undulant, also can be stable carry marsh gas to gas facility, leave abundant adjustment time.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to sewage treatment produces marsh gas cabinet safety buffering storage system.
Background
In the biochemical treatment process of sewage, biogas is generated in the anaerobic tank in the anaerobic treatment link, and the biogas needs to be recycled from the aspects of environmental protection and energy conservation. Because the amount of the biogas generated by the anaerobic tank is unstable, the generated biogas must be consumed or stored in time, the biogas belongs to dangerous gas, common biogas facilities need to be stably controlled, and the existing buffering and storing equipment cannot meet the stable output of the biogas when the amount of the biogas fluctuates, thereby causing potential safety hazards to actual production.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the safe buffer storage system of the sewage treatment methane production gas holder overcomes the defects of the prior art, the double-membrane gas holder is used as buffer storage equipment, the safe discharge of methane in the anaerobic tank can be ensured, and when the methane production amount fluctuates, methane can be stably conveyed to a gas utilization facility, so that sufficient adjustment time is reserved.
The technical scheme of the utility model is that: a safe buffer storage system of a gas holder for producing methane by sewage treatment comprises a methane input pipeline and a methane output pipeline; the biogas input pipeline comprises an anaerobic tank, a water seal tank and a double-membrane gas holder which are sequentially communicated through pipelines; an anaerobic tank emptying pipeline is arranged on a pipeline between the anaerobic tank and the water-sealed tank; the double-membrane gas holder is provided with an inner membrane, an outer membrane pressure protector, a pressure display meter and a height display meter, wherein the outer membrane is provided with a gas hole, and the outer membrane pressure protector is communicated with the gas hole; a drainage pipeline is also arranged on the double-membrane gas cabinet and is connected with the water collecting tank; one end of the methane output pipeline is connected with the double-membrane gas holder, and the other end of the methane output pipeline is connected with methane using equipment.
Preferably, the anaerobic tank emptying pipeline is provided with an anaerobic tank emptying electric valve and an anaerobic tank emptying pipeline water stop valve, and a fire stop valve is arranged on a pipeline between the water-sealed tank and the double-membrane gas cabinet.
Preferably, an air inlet valve is arranged on a pipeline between the water-sealed tank and the double-membrane gas holder, and an air outlet valve is arranged on a methane output pipeline.
Preferably, a positive-negative pressure protector is further arranged on a pipeline between the water-sealed tank and the double-membrane gas holder, and the positive-negative pressure protector is communicated with the positive-negative pressure emptying pipeline.
Preferably, the biogas system also comprises a biogas bypass output pipeline which is communicated with the biogas input pipeline and the biogas output pipeline.
Preferably, the biogas output pipeline is provided with a check valve.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses utilize two membrane gas cabinets as buffering storage facilities, can guarantee the safe discharge of anaerobic jar marsh gas, can be again when the marsh gas volume of anaerobic jar production is undulant, also can be stable carry marsh gas to gas facility, leave abundant adjustment time.
2. The fire arrestor, the emptying valve, the safety water seal and the check valve are arranged, and the storage and use safety of the methane is fully guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, an anaerobic tank; 2. sealing the tank with water; 3. a double-membrane gas holder; 301. an inner membrane; 302. an outer membrane; 303. an outer membrane pressure protector; 304. a pressure display gauge; 305. a height display meter; 306. air holes; 307. a drain line; 308. a water collecting tank; 4. an anaerobic tank emptying pipeline; 401. an anaerobic jar emptying electric valve; 402. an anaerobic tank emptying pipeline water stop valve; 5. a biogas input pipeline; 501. a fire relief valve; 502. an intake valve; 503. a positive and negative voltage protector; 504. a positive and negative pressure evacuation line; 6. a biogas output pipeline; 601. an air outlet valve; 602. a check valve; 7. a biogas bypass output pipeline; 8. a marsh gas using device.
Detailed Description
Examples
As shown in fig. 1, the embodiment provides a safe buffer storage system of a methane tank for producing methane through sewage treatment, which includes a methane input pipeline 5 and a methane output pipeline 6; the biogas input pipeline 5 comprises an anaerobic tank 1, a water-sealed tank 2 and a double-membrane gas holder 3 which are sequentially communicated through pipelines; an emptying pipeline of the anaerobic tank 1 is arranged on a pipeline between the anaerobic tank 1 and the water-sealed tank 2; be provided with back-fire relief valve 501 on the pipeline between water sealed tank 2 and the two membrane gas cabinets 3, 1 evacuation pipeline of anaerobic jar sets up anaerobic jar evacuation motorised valve 401 and anaerobic jar evacuation pipeline water blocking valve 402, be provided with air inlet valve 502 on the pipeline between water sealed tank 2 and the two membrane gas cabinets 3, be provided with out gas valve 601 and check valve 602 on the marsh gas output pipeline 6, still be provided with positive negative pressure protector 503 on the pipeline between water sealed tank 2 and the two membrane gas cabinets 3, positive negative pressure 503 protector intercommunication positive negative pressure evacuation pipeline 504. The double-membrane gas holder 3 is provided with an inner membrane 301, an outer membrane 302, an outer membrane pressure protector 303, a pressure display meter 304 and a height display meter 305, the outer membrane 302 is provided with a gas hole 306, and the outer membrane pressure protector 303 is communicated with the gas hole 306; the double-membrane gas holder 3 is also provided with a drainage pipeline 307, and the drainage pipeline 307 is connected with a water collecting tank 308; one end of the marsh gas output pipeline 6 is connected with the double-membrane gas cabinet 3, and the other end is connected with marsh gas using equipment. The 8 also comprises a marsh gas bypass output pipeline 7, and the marsh gas bypass output pipeline 7 is communicated with the marsh gas input pipeline 5 and the marsh gas output pipeline 6.
During the use process, the biogas generated by the anaerobic tank 1 firstly enters the water seal tank 2 through a pipeline, an emptying pipeline is arranged on a tank top pipeline before the biogas enters the water seal tank 2, and when the system is in overpressure, an emptying electric valve starts the biogas generated by the anaerobic tank 1 to pass through a flame arrester and then to be emptied. The marsh gas entering the water-sealed tank 2 is retained in the water-sealed tank 2 by the water in the water-sealed tank 2, the water-sealed tank 2 plays a role of safe fire resistance, and the water-sealed tank 2 is periodically drained and replaced. The biogas is washed and discharged by the water seal tank 2, passes through the flame arrester, enters the double-membrane gas holder 3 through the air inlet valve 502, is stored in the double-membrane gas holder 3, is output through the air outlet valve 601, and is provided with a check valve 602 on a pipeline from the double-membrane gas holder 3 to biogas use equipment. The biogas bypass output pipeline 7 is provided with a gas holder biogas bypass valve, biogas can be temporarily output through the bypass valve under special conditions such as maintenance of the double-membrane gas holder 3, the double-membrane gas holder 3 can be taken out, and the operation of a rear system is not influenced temporarily.
The working principle of the double-membrane biogas gas holder is that the double-membrane biogas gas holder 3 is provided with an inner membrane 301 and an outer membrane 302. The space inside the inner membrane 301 is used for storing methane, and the space between the outer membrane 302 and the inner membrane 301 is used for supplementing air, so that the shape of the sphere is kept to ensure safety. The double-membrane gas holder 3 is provided with a pressure and height instrument for displaying control, and an outer membrane 302 pressure protector for regulating air inlet and outlet between the outer membrane 302 and the inner membrane 301. A positive and negative pressure protector 503 is provided for regulating the evacuation of biogas within the inner membrane 301. When the double-film gas holder 3 does not feed biogas, the inner film 301 is in a soft state, the outer film 302 is filled with air, and the appearance shows that the double-film gas holder 3 keeps a full sphere.
The biogas from the anaerobic tank 1 firstly enters the inner membrane 301 of the double-membrane gas holder 3 through the valve, the inner membrane 301 slowly rises due to the entry of the biogas, the pressure of the outer membrane 302 increases, the air in the outer membrane 302 is exhausted through the exhaust port of the pressure protector of the outer membrane 302 under the action of the pressure protector of the outer membrane 302, when the biogas is stored for a certain amount, the gas-using equipment starts to use the biogas, the double-membrane gas holder 3 outputs the biogas while entering, and when the gas consumption increases and the height of the biogas in the inner membrane 301 of the double-membrane gas holder 3 decreases, the air enters the space between the outer membrane 302 and the inner membrane 301 through the air inlet of the pressure protector of the outer membrane 302 under the action of the pressure protector of the outer membrane 302 and is filled. When the height of the methane in the inner membrane 301 rises to reach an alarm value, the positive and negative pressure protector 503 is started, and the methane is discharged from an emptying pipe of the positive and negative pressure protector 503 to ensure safety. Through the operation, the methane is buffered and stored by utilizing the change of the volume height of the gas holder, and the stable operation of methane-using equipment can be ensured under the condition that the methane generated by the anaerobic tank 1 fluctuates. The gas holder is provided with a drainage pipeline 307, and when a certain amount of moisture in the biogas is accumulated in the gas holder inner membrane 301, the moisture is drained to a water collecting tank 308 through the drainage pipeline 307, so that the dehydration effect is also achieved.
In the embodiment, the double-membrane gas holder 3 is used as a buffer storage device, so that the safe discharge of the biogas in the anaerobic tank 1 can be ensured, and the biogas can be stably conveyed to a gas utilization facility when the biogas production amount of the anaerobic tank 1 fluctuates, and sufficient adjustment time is reserved; the fire arrestor, the emptying valve, the safety water seal and the check valve 602 are arranged, so that the storage and use safety of the methane is fully guaranteed.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a sewage treatment produces marsh gas holder safety buffer storage system which characterized in that: comprises a marsh gas input pipeline (5) and a marsh gas output pipeline (6);
the biogas input pipeline (5) comprises an anaerobic tank (1), a water-sealed tank (2) and a double-membrane gas holder (3) which are sequentially communicated through pipelines;
an anaerobic tank emptying pipeline (4) is arranged on a pipeline between the anaerobic tank (1) and the water-sealed tank (2);
the double-membrane gas holder (3) is provided with an inner membrane (301), an outer membrane (302), an outer membrane pressure protector (303), a pressure display meter (304) and a height display meter (305), the outer membrane (302) is provided with a gas hole (306), and the outer membrane pressure protector (303) is communicated with the gas hole (306); a drainage pipeline (307) is also arranged on the double-membrane gas holder (3), and the drainage pipeline (307) is connected with a water collecting tank (308);
one end of the marsh gas output pipeline (6) is connected with the double-membrane gas holder (3), and the other end is connected with marsh gas using equipment (8).
2. The sewage treatment biogas production gas holder safety buffer storage system of claim 1, characterized in that: the emptying pipeline of the anaerobic tank (1) is provided with an anaerobic tank emptying electric valve (401) and an anaerobic tank emptying pipeline water stop valve (402), and a fire retardant valve (501) is arranged on the pipeline between the water-sealed tank (2) and the double-membrane gas cabinet (3).
3. The sewage treatment biogas production gas holder safety buffer storage system of claim 1, characterized in that: an air inlet valve (502) is arranged on a pipeline between the water-sealed tank (2) and the double-film gas holder (3), and an air outlet valve (601) is arranged on the methane output pipeline (6).
4. The sewage treatment biogas production gas holder safety buffer storage system of claim 1, characterized in that: and a positive and negative pressure protector (503) is also arranged on a pipeline between the water seal tank (2) and the double-membrane gas holder (3), and the positive and negative pressure protector (503) is communicated with a positive and negative pressure emptying pipeline (504).
5. The sewage treatment biogas production gas holder safety buffer storage system of claim 1, characterized in that: the biogas system also comprises a biogas bypass output pipeline (7), wherein the biogas bypass output pipeline (7) is communicated with the biogas input pipeline (5) and the biogas output pipeline (6).
6. The sewage treatment biogas production gas holder safety buffer storage system of claim 1, characterized in that: the methane output pipeline (6) is provided with a check valve (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221397643.0U CN217498833U (en) | 2022-06-07 | 2022-06-07 | Safe buffering and storing system of methane gas cabinet produced by sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221397643.0U CN217498833U (en) | 2022-06-07 | 2022-06-07 | Safe buffering and storing system of methane gas cabinet produced by sewage treatment |
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| Publication Number | Publication Date |
|---|---|
| CN217498833U true CN217498833U (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221397643.0U Active CN217498833U (en) | 2022-06-07 | 2022-06-07 | Safe buffering and storing system of methane gas cabinet produced by sewage treatment |
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| CN (1) | CN217498833U (en) |
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2022
- 2022-06-07 CN CN202221397643.0U patent/CN217498833U/en active Active
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