CN219010281U - Biogas reactor - Google Patents
Biogas reactor Download PDFInfo
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- CN219010281U CN219010281U CN202221323081.5U CN202221323081U CN219010281U CN 219010281 U CN219010281 U CN 219010281U CN 202221323081 U CN202221323081 U CN 202221323081U CN 219010281 U CN219010281 U CN 219010281U
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- biogas
- pressure reducing
- box body
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- reducing valve
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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
A biogas reactor comprises a biogas tank and a biogas storage film, wherein the biogas storage film is arranged at the top of the biogas tank, a detection belt is arranged outside the biogas storage film, the detection belt is of a structure with a center emitting to the periphery formed by n detection belt sections, one detection belt section is a movable section, and a positive and negative pressure protection device is hoisted at the free end of the movable section; the box body is connected with a detection pipe, the pressure sensor is arranged on the detection pipe, a signal line of the pressure sensor is connected with a signal acquisition end of a biogas production control cabinet, an output end of the biogas production control cabinet is connected with a biogas cogeneration unit control cabinet and a biogas purification unit control cabinet, a biogas production equipment controller is integrated in the biogas production control cabinet, the biogas cogeneration unit control cabinet is connected with a biogas cogeneration unit, and the biogas purification unit control cabinet is connected with a biogas purification unit. The utility model detects signals through the pressure sensor when in negative pressure, cuts off the gas consumption of the generator set, and prevents the methane tank and the methane pipeline from forming negative pressure.
Description
Technical Field
The utility model belongs to the technical field of biogas fermentation processes, and particularly relates to a biogas reactor.
Background
Biogas belongs to secondary energy and is a renewable energy source. Biogas is a combustible gas produced by fermentation of microorganisms under conditions of air-tight (reducing) and at a suitable temperature and PH. On one hand, when the pressure in the biogas storage film is lower than the set limit, negative pressure is generated, and the biogas tank and the gas storage film can be damaged, so that potential safety hazards are generated; on the other hand, if negative pressure is generated, the continuous operation of the biogas utilization system (such as a biogas boiler and the like) further aggravates the formation of negative pressure between the biogas digester and the biogas pipeline.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the biogas reactor, which is high in safety and can control the work of the whole reactor according to the pressure in the tank body of the biogas digester or the positive and negative pressure protection device.
The technical scheme of the utility model is as follows: the device comprises a methane tank and a methane storage membrane, wherein the top of the methane tank is provided with the methane storage membrane, the outside of the methane storage membrane is provided with a detection belt, and the detection belt is formed into a structure with a center emitting to the periphery by n detection belt sections; one of the n detection belt sections is a movable section, the rest n-1 detection belt sections are fixed sections, one ends of the movable section and the fixed section are gathered in the center of the biogas storage film, the other end of the movable section is a free end, and the other end of the fixed section is fixed in the biogas digester; hoisting positive and negative pressure protection devices at the free ends of the detection belt sections; the positive and negative pressure protection device comprises a box body, wherein a pressure reducing valve is arranged at the upper part in the box body, and a vacuum safety valve is arranged at the lower part in the box body;
the box body is connected with a detection tube, the detection tube is communicated with the inner cavity of the box body, a pressure sensor is arranged on the detection tube, a signal line of the pressure sensor is connected with a signal acquisition end of a biogas production control cabinet, the output end of the biogas production control cabinet is connected with a biogas cogeneration unit control cabinet and a biogas purification unit control cabinet, a biogas production equipment controller is integrated in the biogas production control cabinet, the biogas cogeneration unit control cabinet is connected with a biogas cogeneration unit, and the biogas purification unit control cabinet is connected with a biogas purification unit.
The detection tube is also connected with a gas analyzer, and the gas detection port can be connected with a gas acquisition end of a manual gas analyzer or a gas acquisition end of an automatic gas analyzer.
The biogas generating equipment controller comprises a stirring equipment controller, a feeding equipment controller and the like; an emergency torch controller is integrated in the biogas production control cabinet, and the emergency torch is connected with the emergency torch controller.
The detection tube is provided with a switch valve, the detection tube forms a first branch and a second branch through a tee pipe fitting, the pressure sensor is arranged on the first branch, and the pressure sensor is connected with the gas analyzer and is connected with the second branch.
The free end of the detection belt section is hoisted with the positive and negative pressure protection device through a guide device, the guide device comprises a bracket, the top of the bracket is provided with a rope guide, and the free end of the detection belt is hoisted with an operating rod of the positive and negative pressure protection device through the rope guide; the rope guide device comprises a roller, wherein the roller comprises a wheel body and a wheel shaft, the wheel body is sleeved in the middle of the wheel shaft, the two ends of the wheel shaft of the roller are fixed on a bracket, and the surface of the wheel body of the roller forms a guide surface for guiding the free end of the detection belt to move; wheel shaft surfaces on two sides of the wheel body are higher than the wheel body surface, a concave ring is formed in the middle of the wheel surface, and the concave ring is used for positioning the detection belt and preventing the detection belt from deviating; the rope guide device also comprises an auxiliary stop lever, a circle of flange is arranged in the middle of the auxiliary stop lever, and the flange corresponds to the concave ring.
The support comprises two vertical plates and supporting ribs connected between the two vertical plates, and two ends of a wheel shaft of the rope guider and two ends of the auxiliary stop rod are arranged on the two vertical plates. The guiding device obliquely arranged on the side surface of the box body is fixed on the upper part of the methane tank.
Also comprises an endoscope for monitoring the working condition of the box body.
The end part of the operating rod positioned in the box body is connected with the pressure reducing valve cover, the middle part of the operating rod passes through the box body through a mounting hole on the box body, the side surface of the operating rod positioned outside the box body is connected with a cross rod, the end part of the cross rod is connected with a vertical rod, the end part of the vertical rod is connected with a lifting lug, and the free end of the detection belt is fixed at the lifting lug; the balancing weight is hung at the lower part of the operating rod.
A guide sleeve matched with the part of the operating rod positioned in the box body is arranged at the mounting hole of the box body, and the guide sleeve is positioned in the box body; and a flange pipe fitting is arranged at the exhaust through hole, and the end part of the flange pipe fitting is connected with an exhaust pipe.
The positive and negative pressure protection device comprises a box body, wherein a pressure reducing valve is arranged at the upper part in the box body, and a vacuum safety valve is arranged at the lower part in the box body; the pressure reducing valve comprises a pressure reducing valve body, the pressure reducing valve body is of a cylindrical structure with openings at the upper end and the lower end, the opening at the lower end of the pressure reducing valve body is a pressure reducing inlet, the opening at the upper end of the pressure reducing valve body is an exhaust port, and an exhaust channel is formed between the pressure reducing inlet and the exhaust port; the pressure reducing valve further comprises a pressure reducing valve cover, the pressure reducing valve cover is arranged at a pressure reducing inlet at the lower end of the pressure reducing valve body, and the pressure reducing valve further comprises an operating rod for driving the pressure reducing valve cover to lift so as to open/close the exhaust channel; an exhaust through hole is arranged at the top of the box body corresponding to the exhaust port, and a connecting pipe for connecting the methane tank is arranged on the side surface of the box body; when the operating rod moves upwards to drive the pressure reducing valve cover to be separated from the pressure reducing inlet, the exhaust channel is opened, and gas is discharged through the exhaust channel; when the operating rod moves downwards to drive the pressure reducing valve cover cap to cover the pressure reducing inlet, the exhaust channel is closed; the vacuum safety valve comprises a safety valve seat, wherein the safety valve seat is of a cylindrical structure with openings at the upper end and the lower end, and a leakage channel is formed between the openings at the upper end and the lower end of the safety valve seat; the vacuum safety valve further comprises a safety valve cover cap which is arranged at the opening at the upper end of the safety valve seat, and a guide rod for driving the safety valve cover cap to lift so as to open/close the air leakage channel; the lower part in the box body is also provided with a safety valve sealing liquid for sealing a cover opening of the safety valve cover; the bottom of the box body is provided with an assembly hole corresponding to the opening of the lower end of the vacuum safety valve.
According to the utility model, the guide device is arranged, so that the contact between the movable section in the detection belt and the biogas storage film is reduced, the problem that the surface of the biogas storage film at the detection belt is easy to wear is avoided, and the design is reasonable. The utility model can automatically release pressure and discharge when in overpressure, thereby protecting the biogas storage film. When the pressure is negative, a signal is detected through the pressure switch, so that the gas used by the generator set is cut off, and the methane tank and the methane pipeline are prevented from forming negative pressure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic block diagram of the circuit of the present utility model;
FIG. 4 is a schematic diagram of the structure of the positive and negative pressure protection device;
FIG. 5 is a cross-sectional view of FIG. 4;
fig. 6 is a schematic view of the structure of the pressure reducing valve at the pressure reducing inlet.
Detailed Description
In fig. 1, 2 and 3, the biogas storage film 21 is arranged at the top of the biogas digester 41, a detection belt is arranged outside the biogas storage film 21, the detection belt is composed of 3 detection belt sections, one of the 3 detection belt sections is a movable section 416, the rest 2 detection belt sections are fixed sections 415, one ends of the movable section 416 and the fixed section 415 are converged at the center of the biogas storage film 21, the other end of the movable section 416 is a free end 417, and the other end of the fixed section 415 is fixed on the biogas digester 41. The free end of the detection belt section is hoisted by the positive and negative pressure protection device 31 through the rope guider. The exhaust through hole of the positive and negative pressure protection device 31 is provided with a flange pipe fitting 5, and the end part of the flange pipe fitting 5 is connected with an exhaust pipe 51. The endoscope 102 can monitor the operation of the housing 101. The box body 101 is connected with a detection pipe 311, the detection pipe 311 is provided with a switch valve 37, the detection pipe 311 is communicated with the inner cavity of the box body, a pressure sensor 32 is arranged on the detection pipe 311, a signal line of the pressure sensor 32 is connected with a signal acquisition end of a biogas production control cabinet 33, an output end of the biogas production control cabinet 33 is connected with a biogas cogeneration unit control cabinet 34 and a biogas purification unit control cabinet 35, a biogas production equipment controller and an emergency torch controller 38 are integrated in the biogas production control cabinet 33, an emergency torch 388 is connected with the emergency torch controller 38, the biogas cogeneration unit control cabinet 34 is connected with a biogas cogeneration unit 344, and the biogas purification unit control cabinet 35 is connected with a biogas purification unit 355. The detecting tube 311 forms a first branch and a second branch through a three-way pipe fitting, the pressure sensor 32 is arranged on the first branch, and the connecting gas analyzer 36 is connected on the second branch.
The biogas digester is specially provided with a biogas taking end which is supplied to the following equipment, and biogas pretreatment steps such as water removal, desulfurization, particulate removal and the like until the equipment such as a generator set, a boiler, a purifying equipment or an emergency torch 388 is used for using the biogas. Some projects have lower biogas yield, and many projects only have a torch to burn redundant biogas, and other gas utilization equipment is not arranged.
Once the negative pressure is formed in the methane tank, that is, a certain set negative pressure value is reached, the pressure sensor 32 sends a signal to the control system of the following gas utilization equipment or the signal is collected by the methane production control cabinet 33 through the pressure sensor 32 and then sent to the control system of the following gas utilization equipment, and then the control system of the following gas utilization equipment immediately stops the booster fan of the generator set, that is, no more air is pumped into the generator set, or the purifying equipment is stopped, and the gas utilization unit is stopped at the same time. Thus, no further negative pressure or larger negative pressure is generated, otherwise, the atmospheric pressure can collapse the gas storage film and the top of the whole methane tank, and larger loss is caused.
The positive-negative pressure protector 31 can give positive pressure or negative pressure set threshold signal, and when the positive pressure or negative pressure is over-pressure, no matter whether the biogas equipment (a generator set, a purifying device, a boiler or a torch) is in operation or not, when the positive pressure and the negative pressure are over-pressure, the protective rope is pulled to start releasing biogas through the gas release channel, which is the final safety guarantee.
In fig. 4 and 5, the pressure reducing valve 1 is installed at the upper portion in the case 101. The pressure reducing valve 1 comprises a pressure reducing valve body, the pressure reducing valve body is of a cylindrical structure with openings at the upper end and the lower end, the opening at the lower end of the pressure reducing valve body is a pressure reducing inlet, and the opening at the upper end of the pressure reducing valve body is an exhaust port. The pressure reducing valve cover 6 is arranged at a pressure reducing inlet at the lower end of the pressure reducing valve body, an exhaust through hole is arranged at the top of the box body 101 corresponding to the exhaust port, and a flange pipe fitting 5 for connecting an exhaust pipe is arranged at the exhaust through hole; the side surface of the box body 101 is provided with a connecting pipe 7 for connecting the methane tank. The operating rod 11 drives the pressure reducing valve cover 6 to move upwards until the pressure reducing valve cover 6 is separated from the pressure reducing inlet, so that the exhaust can be realized. The operating rod 11 drives the pressure reducing valve cover 6 to move downwards until the pressure reducing valve cover 6 falls on the pressure reducing inlet, the opening of the pressure reducing valve cover 6 is sealed by the pressure reducing valve sealing liquid 3 in the accommodating cavity 181, and the exhaust through hole can be closed to prevent methane leakage. The end part of an operating rod 11 positioned in the box body is connected with the pressure reducing valve cover 6, and the middle part of the operating rod 11 passes through the box body through a mounting hole on the box body. The mounting hole on the box body is provided with a guide sleeve 122 matched with the part of the operating rod 11 positioned in the box body, and the guide sleeve 122 is positioned in the box body.
The rope guide is arranged at the top of the support 401, and the free end of the detection belt is hoisted with the operating rod 11 of the positive and negative pressure protection device 31 through the rope guide. The support 401 is fixed between the box 101 and the methane tank 41, the support 401 comprises two vertical plates 403 and supporting ribs 404 connected between the two vertical plates, and two ends of a wheel shaft of the rope guider and two ends of an auxiliary stop rod 406 are arranged on the two vertical plates. The free end of the detection belt is hoisted with the operating rod 11 of the positive and negative pressure protection device 31 through the rope guider. The rope guide comprises a roller, the roller comprises a wheel body and a wheel shaft, the wheel body is sleeved in the middle of the wheel shaft, two ends of the wheel shaft of the roller are fixed on the support 401, and a guide surface for guiding the free end of the detection belt to move is formed on the surface of the wheel body of the roller. Wheel axle surfaces on two sides of the wheel body are higher than the wheel body surface, concave rings 405 are formed in the middle of the wheel surface and used for positioning the detection belt and preventing the detection belt from deviating. The middle part of the auxiliary stop lever is provided with a circle of flange which corresponds to the concave ring.
The vacuum safety valve 9 is arranged at the inner lower part of the box body 101, the vacuum safety valve 9 comprises a safety valve seat, a safety valve cover 8 and a guide rod 10, and the safety valve cover 8 is arranged at the opening of the upper end of the safety valve seat. The lower part in the box body 101 is also provided with a safety valve sealing liquid 4, and the bottom of the box body 101 is provided with an assembly hole corresponding to the opening of the lower end of the vacuum safety valve 9. And sealing rubber rings are arranged at the positions of the vacuum safety valve 9 and the assembly holes.
The end part of an operating rod 11 positioned in the box body is connected with the pressure reducing valve cover 6, the middle part of the operating rod 11 passes through the box body through a mounting hole on the box body, the side surface of the operating rod 11 positioned outside the box body is connected with a cross rod 114, the end part of the cross rod 114 is connected with a vertical rod 112, the end part of the vertical rod 112 is connected with a lifting lug 113, and the free end of a detection belt is fixed at the lifting lug 113; the balancing weight 111 is hung under the operating lever 11.
A circle of upper retainer ring which extends radially inwards is arranged at the upper port of the guide sleeve 122, and an upper abdication hole of the abdication operation rod 11 is arranged in the middle of the upper retainer ring; the lower port of the guide sleeve 122 is arranged on the sealing ring, and the operating rod 11 is sleeved on the inner ring of the sealing ring. The upper abdication hole is in clearance fit with the operating rod 11, the operating rod 11 is in clearance fit with the inner cavity of the guide sleeve 112, and the operating rod 11 is in movable sealing connection with the inner ring of the sealing ring.
In fig. 6, a ring of flange 182 extending inwards along the axial direction is arranged at the pressure reducing opening at the lower end of the pressure reducing valve body, and the flange and the bottom end of the inner wall of the pressure reducing valve body form an accommodating cavity 181 through a ring plate back cover 184; when the operating lever 11 moves downward to drive the relief valve cover 6 to cover the relief inlet, the opening of the relief valve cover 6 is sealed by the relief valve sealing liquid 3.
When the methane tank or the positive and negative pressure protection device is used, when the pressure in the tank body exceeds a critical value: on the one hand, the relief valve cover 6 in the relief valve 1 is raised, allowing gas to escape; on the other hand, the guide rod 10 of the vacuum safety valve 9 is manually pushed to lift the safety valve cover 8 to be separated from the upper end opening of the vacuum safety valve 9, and the gas can also flow to the lower end opening of the vacuum safety valve 9 through the upper end opening of the vacuum safety valve 9 and then to the bottom assembly hole of the box 101, so that pressure relief is realized. If the pressure in the tank body of the methane tank or the positive and negative pressure protection device is lower than the set limit, the pressure reducing valve cover 6 falls on the pressure reducing inlet to prevent methane or gas leakage. On the other hand, if the pressure in the tank or the positive and negative pressure protection device is lower than the set limit, the safety valve cover 8 of the vacuum safety valve 9 is raised to allow air to flow in, preventing negative pressure from being generated in the tank or the tank. In normal operation, the relief inlet of the relief valve is sealed by the relief valve sealing liquid 3 and the relief valve cover 8 is sealed by the relief valve sealing liquid 4.
Claims (10)
1. A biogas reactor, characterized in that: the device comprises a methane tank (41) and a methane storage membrane (21), wherein the methane storage membrane (21) is arranged at the top of the methane tank (41), a detection belt is arranged outside the methane storage membrane (21), and the detection belt is formed into a structure with a central-to-peripheral emission type by n sections of detection belt sections; one of the n sections of detection belt sections is a movable section (416), the rest n-1 sections of detection belt sections are fixed sections (415), one ends of the movable section (416) and the fixed section (415) are converged at the center of the biogas storage film (21), the other end of the movable section (416) is a free end (417), and the other end of the fixed section (415) is fixed on the biogas digester (41); hoisting a positive and negative pressure protection device (31) at the free end of the detection belt section; the positive and negative pressure protection device (31) comprises a box body (101), wherein a pressure reducing valve (1) is arranged at the upper part in the box body (101), and a vacuum safety valve (9) is arranged at the lower part in the box body (101);
the box body (101) is connected with a detection pipe (311), the detection pipe (311) is communicated with the inner cavity of the box body, a pressure sensor (32) is arranged on the detection pipe (311), a signal line of the pressure sensor (32) is connected with a signal acquisition end of a biogas production control cabinet (33), an output end of the biogas production control cabinet (33) is connected with a biogas cogeneration unit control cabinet (34) and a biogas purification unit control cabinet (35), a biogas production equipment controller is integrated in the biogas production control cabinet (33), the biogas cogeneration unit control cabinet (34) is connected with a biogas cogeneration unit (344), and the biogas purification unit control cabinet (35) is connected with a biogas purification unit (355).
2. Biogas reactor according to claim 1, characterized in that: the detection tube (311) is also connected with a gas analyzer (36).
3. Biogas reactor according to claim 1, characterized in that: the biogas generating equipment controller comprises a stirring equipment controller, a feeding equipment controller and the like; an emergency torch controller (38) is further integrated in the biogas production control cabinet (33), and an emergency torch (388) is connected with the emergency torch controller (38).
4. Biogas reactor according to claim 2, characterized in that: the detection tube (311) is provided with a switch valve (37), the detection tube (311) forms a first branch and a second branch through a three-way pipe fitting, the pressure sensor (32) is arranged on the first branch, and the connection gas analyzer (36) is connected to the second branch.
5. Biogas reactor according to claim 1, characterized in that: the free end of the detection belt section is hoisted by a guide device to form a positive-negative pressure protection device (31), the guide device comprises a support (401), a rope guide is arranged at the top of the support (401), and the free end of the detection belt is hoisted by the rope guide and an operating rod (11) of the positive-negative pressure protection device (31);
the rope guide device comprises a roller, wherein the roller comprises a wheel body and a wheel shaft, the wheel body is sleeved in the middle of the wheel shaft, two ends of the wheel shaft of the roller are fixed on a bracket (401), and the surface of the wheel body of the roller forms a guide surface for guiding the free end of the detection belt to move;
wheel shaft surfaces on two sides of the wheel body are higher than the wheel body surface, and concave rings (405) are formed in the middle of the surface of the roller;
the rope guide also comprises an auxiliary stop lever (406), the middle part of the auxiliary stop lever is provided with a circle of flange, and the flange corresponds to the concave ring.
6. Biogas reactor according to claim 5, characterized in that: the bracket (401) comprises two vertical plates (403) and supporting ribs (404) connected between the two vertical plates, and two ends of a wheel shaft of the rope guider and two ends of an auxiliary stop lever (406) are arranged on the two vertical plates.
7. Biogas reactor according to claim 1, characterized in that: also comprises an endoscope (102) for monitoring the working condition of the box body (101).
8. Biogas reactor according to claim 1, characterized in that: the end part of an operating rod (11) positioned in the box body is connected with the pressure reducing valve cover cap (6), the middle part of the operating rod (11) passes through the box body through a mounting hole on the box body, the side surface of the operating rod (11) positioned outside the box body is connected with a cross rod (114), the end part of the cross rod (114) is connected with a vertical rod (112), the end part of the vertical rod (112) is connected with a lifting lug (113), and the free end of the detection belt is fixed at the lifting lug (113); the lower part of the operating rod (11) is hung with a balancing weight (111).
9. Biogas reactor according to claim 1, characterized in that: the mounting hole on the box body is provided with a guide sleeve (122) which is matched with the part of the operating rod (11) positioned in the box body, and the guide sleeve (122) is positioned in the box body.
10. Biogas reactor according to claim 1, characterized in that: the pressure reducing valve (1) comprises a pressure reducing valve body, wherein the pressure reducing valve body is of a cylindrical structure with openings at the upper end and the lower end, the opening at the lower end of the pressure reducing valve body is a pressure reducing inlet, the opening at the upper end of the pressure reducing valve body is an exhaust port, and an exhaust channel is formed between the pressure reducing inlet and the exhaust port; the pressure reducing valve (1) further comprises a pressure reducing valve cover cap (6), the pressure reducing valve cover cap (6) is arranged at a pressure reducing inlet at the lower end of the pressure reducing valve body, and the pressure reducing valve (1) further comprises an operating rod (11) for driving the pressure reducing valve cover cap (6) to lift so as to open/close an exhaust passage; an exhaust through hole is arranged at the top of the box body (101) corresponding to the exhaust port, and a connecting pipe (7) is arranged on the side surface of the box body (101);
when the operating rod (11) moves upwards to drive the pressure reducing valve cover cap (6) to be separated from the pressure reducing inlet, the exhaust channel is opened, and the gas is discharged through the exhaust channel; when the operating rod (11) moves downwards to drive the pressure reducing valve cover cap (6) to cover the pressure reducing inlet, the exhaust passage is closed;
the vacuum safety valve (9) comprises a safety valve seat which is of a cylindrical structure with openings at the upper end and the lower end, and a leakage channel is formed between the openings at the upper end and the lower end of the safety valve seat; the vacuum safety valve (9) further comprises a safety valve cover cap (8), the safety valve cover cap (8) is arranged at the opening at the upper end of the safety valve seat, and the vacuum safety valve (9) further comprises a guide rod (10) for driving the safety valve cover cap (8) to lift so as to open/close the air leakage channel; the lower part in the box body (101) is also provided with a safety valve sealing liquid (4) for sealing a cover opening of the safety valve cover (8); the bottom of the box body (101) is provided with an assembly hole corresponding to the opening of the lower end of the vacuum safety valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221323081.5U CN219010281U (en) | 2022-05-30 | 2022-05-30 | Biogas reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221323081.5U CN219010281U (en) | 2022-05-30 | 2022-05-30 | Biogas reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219010281U true CN219010281U (en) | 2023-05-12 |
Family
ID=86247493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221323081.5U Active CN219010281U (en) | 2022-05-30 | 2022-05-30 | Biogas reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219010281U (en) |
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2022
- 2022-05-30 CN CN202221323081.5U patent/CN219010281U/en active Active
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