CN219449683U - Biogas steady pressure collecting and conveying structure without gas holder and percolate treatment system - Google Patents
Biogas steady pressure collecting and conveying structure without gas holder and percolate treatment system Download PDFInfo
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- CN219449683U CN219449683U CN202320784683.9U CN202320784683U CN219449683U CN 219449683 U CN219449683 U CN 219449683U CN 202320784683 U CN202320784683 U CN 202320784683U CN 219449683 U CN219449683 U CN 219449683U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model provides a steady-pressure collecting and conveying structure for biogas without a gas holder and a percolate treatment system, wherein the steady-pressure collecting and conveying structure for biogas without a gas holder comprises a steady-pressure collecting assembly and a steady-pressure conveying assembly; the pressure stabilizing and collecting assembly comprises an anaerobic reactor, a water sealed tank, a gas-water separator and a first pressure detector; the first pressure detector is arranged at the top of the anaerobic reactor; the pressure stabilizing and conveying assembly comprises a methane booster fan, the gas-water separator is connected with the methane booster fan, and the methane booster fan is connected with an external gas end; the first pressure detector is electrically connected with the methane booster fan. The utility model realizes the linkage between the methane booster fan and the first pressure detector by adopting the mode of electric connection between the methane booster fan and the first pressure detector, so that the gas yield of the anaerobic reactor is consistent with the gas yield of the methane stable pressure collecting and conveying structure, and the pressure stabilizing effect of the methane collecting system is achieved.
Description
Technical Field
The utility model relates to the field of leachate treatment, in particular to a biogas steady-pressure collecting and conveying structure without a gas holder.
Background
In the biogas collection and conveying scheme, the stability of biogas pressure is a necessary condition for ensuring the safe and normal operation of the whole scheme.
The biogas is definitely stored under low pressure in section 4.5.1 of technical Specification for large and medium-sized biogas engineering (GB/T51063-2014). The selection of the gas holder is determined by comparing the technical economy according to the factors of the user property, the gas supply scale, the gas utilization time, the gas supply distance and the like. In the queried published patent (CN 202452115U, CN 212029166U), a pressure stabilizing device or a biogas pressure stabilizing cabinet is arranged.
However, in the percolate treatment industry, particularly in small-scale biogas collection and conveying systems, the total usable planar area is generally smaller, and if a biogas tank is independently arranged, the total planar arrangement is difficult or impossible due to the occupation of the biogas tank and the fire-proof spacing requirements of the biogas tank and other facilities which are clear in specification (see Table 4.1.5 of technical Specification for large and medium biogas engineering (GB/T51063-2014)).
Therefore, how to keep the pressure stability of the biogas collection and conveying structure in the environment without a biogas tank becomes one of the problems to be solved.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a steady-pressure collecting and conveying structure for biogas without a gas holder.
The utility model provides a biogas steady pressure collecting and conveying structure without a gas holder, which comprises a steady pressure collecting component and a steady pressure conveying component;
the pressure stabilizing and collecting assembly comprises an anaerobic reactor, a water sealed tank, a gas-water separator and a first pressure detector;
the anaerobic reactor is connected with the water sealed tank through a first pipeline, the water sealed tank is connected with the gas-water separator through a second pipeline, and the first pressure detector is arranged at the top of the anaerobic reactor;
the height of the outlet of the first pipeline is lower than the height of liquid in the water sealed tank;
the pressure stabilizing and conveying assembly comprises a methane booster fan, the gas-water separator is connected with the methane booster fan, and the methane booster fan is connected with an external gas end;
the first pressure detector is electrically connected with the methane booster fan.
Preferably, the methane booster fan further comprises a controller, and the first pressure detector is electrically connected with the methane booster fan through the controller.
Preferably, the pressure stabilizing and conveying assembly further comprises a second pressure detector and a flow monitor, and the second pressure detector and the flow monitor are arranged between the methane booster fan and the external gas end.
Preferably, the system further comprises a safety monitoring assembly, wherein the safety monitoring assembly comprises a hydrogen sulfide monitoring alarm, a methane monitoring alarm and an oxygen content analyzer;
the hydrogen sulfide monitoring alarm and the methane monitoring alarm are both arranged at the top end of the anaerobic reactor; the oxygen content analyzer is arranged between the methane booster fan and the external gas end.
Preferably, the oxygen content analyzer is electrically connected with the methane booster fan.
Preferably, the second pressure detector is electrically connected with the biogas booster fan.
Preferably, the first pressure detector and the second pressure detector are both pressure transmitters.
Preferably, the number of the biogas booster fans is multiple, and the biogas booster fans are arranged in parallel.
The percolate treatment system provided by the utility model comprises the biogas steady-pressure collecting and conveying structure without a gas holder.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model does not adopt a gas holder, so the utility model has lower requirement on fireproof space, and is particularly suitable for small percolate treatment stations with smaller total plane area. And the utility model realizes the linkage between the methane booster fan and the first pressure detector by adopting the mode of electric connection between the methane booster fan and the first pressure detector, so that the gas yield of the anaerobic reactor is consistent with the gas yield of the methane stable pressure collecting and conveying structure, and the pressure stabilizing effect of the methane collecting system is achieved.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic flow chart of the present utility model;
the figure shows:
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
The utility model provides a biogas steady pressure collecting and conveying structure without a gas holder, which is shown in figure 1 and comprises a steady pressure collecting component and a steady pressure conveying component; the pressure stabilizing and collecting assembly comprises an anaerobic reactor 101, a water sealed tank 102, a gas-water separator 103 and a first pressure detector 201; in a preferred embodiment, the first pressure detector 201 is a pressure transmitter. The anaerobic reactor 101 is connected with the water sealed tank 102 through a first pipeline 401, the water sealed tank 102 is connected with the gas-water separator 103 through a second pipeline 402, and the first pressure detector 201 is arranged at the top of the anaerobic reactor 101;
the outlet height of the first pipeline 401 is lower than the liquid height in the water sealed tank 102; that is, the biogas is inserted into the water-sealed tank 102 below the liquid level through the pipeline, so as to achieve the water-sealed effect and play a role in preventing backfire. In a preferred embodiment, the liquid is water, and the outlet of the first pipe 401 extends to the bottom of the water sealed tank 102.
The pressure stabilizing and conveying assembly comprises a methane booster fan 104, the gas-water separator 103 is connected with the methane booster fan 104, and the methane booster fan 104 is connected with an external gas end 403; in a preferred embodiment, the number of the biogas booster fans 104 is plural, and the plural biogas booster fans 104 are arranged in parallel, preferably, the number of the biogas booster fans 104 is 2, which is designed for one-path standby one-path working. The first pressure detector 201 is electrically connected with the biogas booster fan 104.
In a preferred embodiment, the pressure-stabilizing collecting and conveying structure for biogas without a gas holder further comprises a controller, and the first pressure detector 201 is electrically connected with the biogas booster fan 104 through the controller.
In a preferred embodiment, the stabilized pressure conveying assembly further includes a second pressure detector 202 and a flow monitor 203, where the second pressure detector 202 and the flow monitor 203 are disposed between the biogas booster fan 104 and the external air end 403, so as to monitor conveying pressure and flow in real time. Preferably, the second pressure detector 202 is a pressure transmitter, the second pressure detector 202 is electrically connected to the biogas booster fan 104, and the second pressure detector 202 can monitor the fan outlet pressure, and when the fan outlet pressure exceeds a set value, the fan is stopped.
The methane stable pressure collecting and conveying structure without the gas holder further comprises a safety monitoring assembly, wherein the safety monitoring assembly comprises a hydrogen sulfide monitoring alarm 301, a methane monitoring alarm 302 and an oxygen content analyzer 303. The hydrogen sulfide monitoring alarm 301 and the methane monitoring alarm 302 are both installed at the top end of the anaerobic reactor 101; the hydrogen sulfide monitoring alarm 301 and the methane monitoring alarm 302 can monitor the concentration of harmful gas at the top of the anaerobic reactor in real time, and alarm when the concentration exceeds a safety value. The oxygen content analyzer 303 is disposed between the biogas booster fan 104 and the external air end 403, and the oxygen content analyzer 303 may be electrically connected with the biogas booster fan 104, so that the oxygen content analyzer 303 may monitor the oxygen content in the fan outlet pipe, and when the oxygen content exceeds a safe value, the fan is stopped.
The upper part of the anaerobic reactor 101 is provided with a large amount of space, which can be used for temporarily storing methane to achieve the buffering effect; in the utility model, the first pressure detector 201 can monitor the methane pressure in the anaerobic reactor 101 in real time, and the pressure of the collecting system is kept stable by controlling the methane pressure in the anaerobic reactor 101 through interlocking with other devices or carrying out on-line alarming to make manual operation intervene, specifically, the methane booster fan 104 adopts a Roots fan to interlock with the methane pressure value in the anaerobic reactor monitored by the first pressure detector 201, so that the gas yield of the anaerobic reactor 101 is basically balanced with the conveying capacity of the methane booster fan 104, and the pressure stability of the conveying system is ensured.
In a preferred embodiment of the present utility model, the first pressure detector 201, the second pressure detector 202 and the flow monitor 203 are all electrically connected to the biogas booster fan 104, or are all electrically connected to the biogas booster fan 104 through a controller. The biogas storage space at the upper part of the anaerobic reactor 101 is taken as buffer, and the linkage control relationship formed among the biogas booster fan 104, the first pressure detector 201, the second pressure detector 202 and the flow monitor 203 is utilized to achieve the effects of biogas pressure stabilizing collection and conveying, replace the effect of a biogas cabinet, and are particularly suitable for small percolate treatment stations with smaller total plane area.
The utility model achieves the water sealing effect by adopting the water sealing structure in the water sealing tank 102, thereby playing the role of tempering prevention. The utility model adopts the electric connection between the methane booster fan 104 and the first pressure detector 201 to realize linkage, solves the problem of pressure fluctuation in the anaerobic reactor 101 caused by inconsistent gas yield of the anaerobic reactor 101 and gas transmission capacity of a methane stable pressure collecting and conveying structure, and achieves the pressure stabilizing effect of a methane collecting system. In addition, the utility model solves the problem that the biogas conveying pressure fluctuates along with the change of the conveying air quantity by using the biogas booster fan 104 with the positive displacement fan structure, and achieves the pressure stabilizing effect of the biogas conveying system. And by arranging the hydrogen sulfide monitoring alarm 301, the methane monitoring alarm 302, the oxygen content analyzer 303 and the second pressure detector 202, the concentration of harmful gases, the oxygen content in methane and the methane conveying pressure are monitored in real time, and the effect of long-term safe and stable operation of the methane system is achieved. In summary, the utility model can cancel the configuration of the existing gas holder, and simultaneously can ensure the pressure stability of the biogas system and the safety of the system operation.
The utility model also provides a percolate treatment system, which comprises the biogas steady-pressure collecting and conveying structure without the gas holder.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (9)
1. The biogas steady pressure collecting and conveying structure without the gas holder is characterized by comprising a steady pressure collecting component and a steady pressure conveying component;
the pressure stabilizing and collecting assembly comprises an anaerobic reactor (101), a water sealed tank (102), a gas-water separator (103) and a first pressure detector (201);
the anaerobic reactor (101) is connected with the water sealed tank (102) through a first pipeline (401), the water sealed tank (102) is connected with the gas-water separator (103) through a second pipeline (402), and the first pressure detector (201) is arranged at the top of the anaerobic reactor (101);
the outlet height of the first pipeline (401) is lower than the liquid height in the water sealed tank (102);
the pressure stabilizing and conveying assembly comprises a methane booster fan (104), the gas-water separator (103) is connected with the methane booster fan (104), and the methane booster fan (104) is connected with an external gas end (403);
the first pressure detector (201) is electrically connected with the methane booster fan (104).
2. The gasless tank biogas pressure stabilizing collection and delivery structure of claim 1, further comprising a controller, wherein the first pressure detector (201) is electrically connected to the biogas booster fan (104) through the controller.
3. The gasless tank biogas pressure stabilizing, collecting and conveying structure according to claim 1, characterized in that the pressure stabilizing and conveying assembly further comprises a second pressure detector (202) and a flow monitor (203), wherein the second pressure detector (202) and the flow monitor (203) are both arranged between the biogas booster fan (104) and an external gas end (403).
4. The gasometer-less biogas pressure-stabilizing collection and delivery structure of claim 1, further comprising a safety monitoring assembly comprising a hydrogen sulfide monitoring alarm (301), a methane monitoring alarm (302) and an oxygen content analyzer (303);
the hydrogen sulfide monitoring alarm (301) and the methane monitoring alarm (302) are both arranged at the top end of the anaerobic reactor (101); the oxygen content analyzer (303) is arranged between the methane booster fan (104) and an external gas end (403).
5. The gasless tank biogas pressure stabilizing collection and delivery structure according to claim 4, wherein the oxygen content analyzer (303) is electrically connected with the biogas booster fan (104).
6. A gasless tank biogas pressure stabilizing collection and delivery structure according to claim 3, characterized in that the second pressure detector (202) is electrically connected with the biogas booster fan (104).
7. The gasometer-less biogas pressure-stabilizing collection and delivery structure of claim 1, wherein the first pressure detector (201) and the second pressure detector (202) are pressure transmitters.
8. The gasless tank biogas steady pressure collection and delivery structure of claim 1, characterized in that the number of biogas booster fans (104) is plural, and the plural biogas booster fans (104) are arranged in parallel.
9. A percolate treatment system comprising a stabilized pressure collection and delivery structure for biogas without a gas holder according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320784683.9U CN219449683U (en) | 2023-04-10 | 2023-04-10 | Biogas steady pressure collecting and conveying structure without gas holder and percolate treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320784683.9U CN219449683U (en) | 2023-04-10 | 2023-04-10 | Biogas steady pressure collecting and conveying structure without gas holder and percolate treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219449683U true CN219449683U (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320784683.9U Active CN219449683U (en) | 2023-04-10 | 2023-04-10 | Biogas steady pressure collecting and conveying structure without gas holder and percolate treatment system |
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| Country | Link |
|---|---|
| CN (1) | CN219449683U (en) |
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2023
- 2023-04-10 CN CN202320784683.9U patent/CN219449683U/en active Active
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