CN214735793U

CN214735793U - Anaerobic biogas fermentation tank convenient for pressure regulation

Info

Publication number: CN214735793U
Application number: CN202121207009.1U
Authority: CN
Inventors: 陈凤凯; 吴祖力; 张导
Original assignee: Shenzhen Shengshi Environmental Protection And Energy Co ltd
Current assignee: Shenzhen Shengshi Environmental Protection And Energy Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-11-16
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses an anaerobic biogas fermentation tank convenient for pressure regulation, which comprises a tank body, wherein a gas storage chamber is arranged at the top inside the tank body, a pressure regulation component is arranged at the top outside the tank body, the pressure regulation component comprises a pressure sensor, a release pipe and a release valve, the pressure sensor is fixedly arranged at the top outside the tank body, and the sensing end of the pressure sensor extends into the gas storage chamber, the utility model discloses a pressure regulation component is arranged, when the pressure sensor of the pressure regulation component detects that the pressure inside the tank body reaches the set upper limit, the pressure is released to the atmosphere through the release pipe, the purpose of positive and negative pressure protection is carried out on the fermentation tank is achieved, the air pressure is avoided being too large, the moderate air pressure inside the anaerobic fermentation tank is kept, the normal running of fermentation is ensured, the use safety of the anaerobic fermentation tank is ensured, and the effects of high efficiency and less energy consumption are achieved, the fermentation tank can work normally and stably.

Description

Anaerobic biogas fermentation tank convenient for pressure regulation

Technical Field

The utility model relates to the technical field of biogas fermentation, in particular to an anaerobic biogas fermentation tank convenient for pressure regulation.

Background

Biomass energy is an important energy source on which human beings depend to live, occupies the fourth place of the world total energy consumption, and is only inferior to coal, petroleum and natural gas. Among them, biogas plays an important role in the field of biomass energy, and the biogas fermentation technology is the key in biomass energy conversion. The biogas fermentation tank is also called as anaerobic fermentation tank, and refers to a process of finally forming methane, carbon dioxide and other combustible mixed gases-biogas by decomposing and metabolizing organic substances (human, livestock and poultry manure, straws, sludge garbage and the like) through various microorganisms under certain moisture, temperature and anaerobic conditions. However, in the existing anaerobic fermentation tank, gas may be generated in the gas intake and exhaust process and the fermentation process, so that the pressure in the anaerobic fermentation tank is unstable, the pressure is too high or too low, the risk of damaging the biogas fermentation tank is easy to occur, the pressure of the fermentation tank is increased, and when the pressure exceeds the design pressure, serious safety accidents such as damage of the fermentation tank, overflow of a large amount of biogas slurry or collapse of the fermentation tank may occur.

The existing biogas fermentation tank drives the stirring blades to rotate through the stirring shaft to realize raw material stirring, but the stirring method can only realize even stirring in a plane and cannot perform up-and-down circulation, so that the raw materials are not mixed uniformly, the hierarchical structure is poor, and the biogas generation efficiency is low. Therefore, it is desirable to provide an anaerobic biogas fermenter which is convenient for pressure adjustment to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anaerobism biogas fermentation cylinder convenient to regulated pressure through setting up the pressure adjustment subassembly, keeps the anaerobism fermentation cylinder internal gas pressure moderate, guarantees the normal clear of fermentation, guarantees anaerobic fermentation cylinder body safe in utilization, has the effect of high-efficient, less energy consumption, makes the normal stable work of fermentation cylinder to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anaerobism biogas fermentation cylinder convenient to regulated pressure, which comprises a tank body, the internal top of jar is provided with the reservoir, pressure regulation subassembly is installed at the external top of jar, pressure regulation subassembly includes pressure sensor, disappointing pipe and release valve, pressure sensor fixed mounting is in the external top of jar, just pressure sensor's response end stretches into the inside of reservoir, it runs through jar body top and extends to inside the reservoir to lose heart pipe one end, jar internal mounted has the stirring subassembly, the zymotic fluid backward flow subassembly is installed to jar body one side.

Preferably, the air release valve is fixedly connected to the air release pipe, and the pressure sensor is electrically connected with the air release valve.

Preferably, the top of the tank body is fixedly communicated with an air outlet pipe, one end of the air outlet pipe penetrates through the top of the tank body and extends into the air storage chamber, the air outlet pipe is fixedly connected with an electromagnetic one-way valve, a biogas filter and a biogas flowmeter in sequence, and the pressure sensor is electrically connected with the electromagnetic one-way valve, the biogas filter and the biogas flowmeter respectively.

Preferably, the stirring subassembly includes motor and pivot, motor fixed mounting is in the top of the jar body, pivot one end and the output shaft fixed connection of motor, the other end of pivot runs through jar body top and gas receiver in proper order and extends to jar internal being close to the bottom, the other end of pivot rotates to be connected in the inside of the jar body.

Preferably, the stirring subassembly still includes connecting block, stirring arc pole and stirring branch, connecting block equidistance distributes on the surface of pivot, stirring arc pole fixed connection is in one side of connecting block, stirring branch connects on stirring arc pole.

Preferably, stirring arc-shaped rod sets up to six groups, six groups stirring arc-shaped rod annular equidistance distributes in a week of connecting block, stirring branch slope is fixed in one side of stirring arc-shaped rod.

Preferably, the zymotic fluid backward flow subassembly includes inlet tube and hydraulic pump, inlet tube one end runs through the lateral wall of the jar body and extends to jar internal bottom, the other end and the fixed intercommunication of hydraulic pump of inlet tube.

Preferably, the fermentation liquid backflow component further comprises a water delivery pipe and a spray head, one end of the water delivery pipe is fixedly connected with the hydraulic pump, the other end of the water delivery pipe penetrates through the side wall of the tank body and extends into the tank body, the spray head is fixedly communicated with the other end of the water delivery pipe, and the spray head is arranged below the gas storage chamber.

Preferably, the lateral wall of one side of the tank body is fixedly communicated with a drain pipe and a drain pipe, the drain pipe is arranged below the air storage chamber, the drain pipe is arranged at the bottom close to the tank body, and valves are arranged on the drain pipe and the drain pipe.

Preferably, the fixed intercommunication of jar body one side lateral wall has discharging pipe and inlet pipe, inlet pipe one end runs through and extends to jar internal bottom of body, all install the valve on discharging pipe and the inlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the pressure regulating assembly, when the pressure sensor of pressure regulating assembly detects that the internal pressure of jar reaches the settlement upper limit, through disappointing the pipe to atmospheric pressure release, reach the purpose of carrying out positive negative pressure protection to the fermentation cylinder, avoid atmospheric pressure too big, keep anaerobic fermentation tank internal gas pressure moderate, guarantee the normal clear of fermentation, guarantee anaerobic fermentation tank safe in utilization, have the effect of high efficiency, less energy consumption, make the fermentation cylinder normally work steadily;

2. through the inlet tube of stirring subassembly and zymotic fluid backward flow subassembly, the raceway, the hydraulic pump, raceway and shower head cooperation are used, the stirring subassembly can realize the stirring in the plane to raw material mixing, and simultaneously, the hydraulic pump passes through the zymotic fluid in the inlet tube extraction fermentation jar, and the rethread shower head upwards spouts the zymotic fluid into the fermentation jar, makes the interior liquid reflux that produces the up-and-down direction of fermentation jar, can produce three-dimensional stirring effect to fermentation raw materials, can make raw materials stirring distribution more even, increase marsh gas production efficiency.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the stirring arc-shaped rod of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the connecting block of the present invention.

In the figure: 1. a tank body; 2. an air storage chamber; 3. a pressure regulating assembly; 301. a pressure sensor; 302. an air escape pipe; 303. a gas release valve; 4. an air outlet pipe; 5. an electromagnetic check valve; 6. a biogas filter; 7. a biogas flow meter; 8. a stirring assembly; 801. a motor; 802. a rotating shaft; 803. connecting blocks; 804. stirring an arc-shaped rod; 805. stirring the supporting rod; 9. a fermentation liquor reflux assembly; 901. a water inlet pipe; 902. a hydraulic pump; 903. a water delivery pipe; 904. a shower head; 10. a bleeder tube; 11. a blow-off pipe; 12. a discharge pipe; 13. and (4) feeding a pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an anaerobic biogas fermentation tank convenient for pressure regulation comprises a tank body 1, wherein a gas storage chamber 2 is arranged at the top inside the tank body 1, a pressure regulation assembly 3 is arranged at the top outside the tank body 1, the pressure regulation assembly 3 comprises a pressure sensor 301, a gas release pipe 302 and a gas release valve 303, the pressure sensor 301 is fixedly arranged at the top outside the tank body 1, the sensing end of the pressure sensor 301 extends into the gas storage chamber 2, one end of the gas release pipe 302 penetrates through the top of the tank body 1 and extends into the gas storage chamber 2, the gas release valve 303 is fixedly connected to the gas release pipe 302, and the pressure sensor 301 is electrically connected with the gas release valve 303;

the stirring assembly 8 is arranged in the tank body 1, the fermentation liquor backflow assembly 9 is arranged on one side of the tank body 1, when the pressure sensor 301 detects that the pressure in the gas storage chamber 2 reaches a set upper limit, the gas release valve 303 is controlled to be opened, the pressure is released to the atmosphere through the gas release pipe 302, the purpose of protecting the fermentation tank by positive pressure and negative pressure is achieved, the excessive pressure is avoided, the pressure in the anaerobic fermentation tank is kept moderate, the normal running of fermentation is ensured, the use safety of the anaerobic fermentation tank body is ensured, the effects of high efficiency and less energy consumption are achieved, and the fermentation tank can normally and stably work;

the top of the tank body 1 is fixedly communicated with an air outlet pipe 4, one end of the air outlet pipe 4 penetrates through the top of the tank body 1 and extends into the air storage chamber 2, the air outlet pipe 4 is fixedly connected with an electromagnetic one-way valve 5, a methane filter 6 and a methane flowmeter 7 in sequence, the pressure sensor 301 is electrically connected with the electromagnetic one-way valve 5, the methane filter 6 and the methane flowmeter 7 respectively, gas impurities such as moisture, hydrogen sulfide and the like in the gas can be filtered through the methane filter 6, the methane flowmeter 7 records the methane production amount and then the gas is collected in a methane bag for later use;

the stirring assembly 8 comprises a motor 801 and a rotating shaft 802, the motor 801 is fixedly arranged at the top of the tank body 1, one end of the rotating shaft 802 is fixedly connected with an output shaft end of the motor 801, the other end of the rotating shaft 802 sequentially penetrates through the top of the tank body 1 and the air storage chamber 2 and extends into the tank body 1 to be close to the bottom, the other end of the rotating shaft 802 is rotatably connected inside the tank body 1, the stirring assembly 8 further comprises a connecting block 803, stirring arc-shaped rods 804 and stirring support rods 805, the connecting block 803 is equidistantly distributed on the surface of the rotating shaft 802, the stirring arc-shaped rods 804 are fixedly connected to one side of the connecting block 803, the stirring support rods 805 are connected to the stirring arc-shaped rods 804, the stirring arc-shaped rods 804 are arranged into six groups, the six groups of stirring arc-shaped rods 804 are annularly and equidistantly distributed on one circle of the connecting block 803, the stirring support rods 805 are obliquely fixed on one side of the stirring arc-shaped rods 804, the motor 801 drives the rotating shaft 802, the stirring arc-shaped rods 804 and the stirring support rods 805 to rotate, stirring the biogas fermentation raw materials such as animal wastes and fermentation strains in the tank body 1 to loosen and fully mix the biogas fermentation raw materials such as animal wastes and the fermentation strains in the tank body 1, wherein the stirring component 8 can stir the raw materials to realize uniform stirring in a plane;

the fermentation liquid backflow component 9 comprises a water inlet pipe 901 and a hydraulic pump 902, one end of the water inlet pipe 901 penetrates through the side wall of the tank body 1 and extends to the bottom in the tank body 1, the other end of the water inlet pipe 901 is fixedly communicated with the hydraulic pump 902, the fermentation liquid backflow component 9 further comprises a water delivery pipe 903 and a spray head 904, one end of the water delivery pipe 903 is fixedly connected with the hydraulic pump 902, the other end of the water delivery pipe 903 penetrates through the side wall of the tank body 1 and extends into the tank body 1, the spray head 904 is fixedly communicated with the other end of the water delivery pipe 903, the spray head 904 is arranged below the air storage chamber 2, the hydraulic pump 902 which starts the fermentation liquid backflow component 9 extracts fermentation liquid in the fermentation tank body 1 through the water inlet pipe 901, and then sprays the fermentation liquid upwards into the fermentation tank body 1 through the water delivery pipe 903 and the spray head 904, so that the liquid backflow in the vertical direction is generated in the fermentation tank body 1, a three-dimensional stirring effect can be generated on fermentation raw materials, and the stirring distribution of the raw materials is more uniform, the methane generation efficiency is increased;

a drainage pipe 10 and a drainage pipe 11 are fixedly communicated with the side wall of one side of the tank body 1, the drainage pipe 11 is arranged below the gas storage chamber 2, the drainage pipe 11 is arranged at the bottom close to the tank body 1, valves are respectively arranged on the drainage pipe 10 and the drainage pipe 11, when biogas residues need to be drained, the valve on the drainage pipe 11 is opened, the biogas residues are drained through the drainage pipe 11 by the force provided by the motor 801, and the drainage pipe 10 can drain redundant stock solution to be drained;

the side wall of one side of the tank body 1 is fixedly communicated with a discharge pipe 12 and a feed pipe 13, one end of the feed pipe 13 penetrates through and extends to the bottom in the tank body 1, valves are respectively arranged on the discharge pipe 12 and the feed pipe 13, biogas fermentation raw materials such as animal excrement and the like and fermentation strains are pumped into the tank body 1 through the feed pipe 13, fermentation is started, after the activities of the biogas fermentation raw materials such as the animal excrement and the like and the fermentation strains in the tank body 1 are lost, the valves on the discharge pipe 12 are opened, and the biogas fermentation raw materials such as the animal excrement and the like and the fermentation strains which lose the activities in the anaerobic biogas fermentation tank body 1 are discharged through the discharge pipe 12.

When the biogas fermentation tank is used, the end part of the end, which is positioned outside the tank body 1, of the gas outlet pipe 4 is connected with a biogas bag, biogas fermentation raw materials such as animal wastes and fermentation strains are pumped into the tank body 1 through the feeding pipe 13, fermentation is started, when the gas pressure in the gas storage chamber 2 reaches the gas production pressure, the pressure sensor 301 feeds back a pressure signal to control the opening of the electromagnetic one-way valve 5, biogas enters the gas outlet pipe 4, water, hydrogen sulfide and other gas impurities in the gas are filtered through the biogas filter 6, the biogas flow meter 7 records the biogas production amount, and then the biogas enters the biogas bag to be collected for later use;

when the pressure sensor 301 detects that the pressure in the gas storage chamber 2 reaches the set upper limit, the gas release valve 303 is controlled to be opened, the pressure is released to the atmosphere through the gas release pipe 302, the purpose of protecting the fermentation tank by positive and negative pressure is achieved, the excessive air pressure is avoided, the moderate air pressure in the anaerobic fermentation tank is kept, the normal running of fermentation is ensured, the use safety of the anaerobic fermentation tank body is ensured, the effects of high efficiency and less energy consumption are achieved, and the fermentation tank can normally and stably work;

the motor 801 of the stirring assembly 8 is started regularly, the motor 801 operates to drive the rotating shaft 802, the stirring arc-shaped rod 804 and the stirring support rod 805 to rotate, biogas fermentation raw materials such as animal wastes and fermentation strains in the tank body 1 are stirred, the biogas fermentation raw materials such as the animal wastes and the fermentation strains in the tank body 1 are loosened and fully mixed, the stirring assembly 8 can stir the raw materials to realize in-plane uniform stirring, meanwhile, the stirring arc-shaped rod 804 and the stirring support rod 805 mix the biogas fermentation raw materials such as the animal wastes and the fermentation strains with water to form fermentation liquor, the hydraulic pump 902 of the fermentation liquor backflow assembly 9 is started to pump the fermentation liquor in the tank body 1 through the water inlet pipe 901, and then the fermentation liquor is sprayed upwards into the fermentation tank body 1 through the water conveying pipe 903 and the spray header 904, so that the liquid backflow in the fermentation tank body 1 in the vertical direction is generated, and a three-dimensional stirring effect is generated on the fermentation raw materials, the raw materials can be stirred and distributed more uniformly, the biogas generation efficiency is increased, when the biogas residues need to be discharged, the valve on the discharge pipe 11 is opened, the biogas residues are discharged through the discharge pipe 11 by the force provided by the motor 801, and then the valve on the discharge pipe 11 is closed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anaerobism biogas fermentation cylinder convenient to adjust pressure, includes jar body (1), its characterized in that: the top is provided with reservoir (2) in the jar body (1), pressure regulation subassembly (3) are installed at the outer top of the jar body (1), pressure regulation subassembly (3) include pressure sensor (301), disappointing pipe (302) and disappointing valve (303), pressure sensor (301) fixed mounting is in the outer top of the jar body (1), just the response end of pressure sensor (301) stretches into the inside of reservoir (2), it runs through jar body (1) top and extends to reservoir (2) inside to lose heart (302) one end, jar body (1) internally mounted has stirring subassembly (8), zymotic fluid backward flow subassembly (9) is installed to jar body (1) one side.

2. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: the air release valve (303) is fixedly connected to the air release pipe (302), and the pressure sensor (301) is electrically connected with the air release valve (303).

3. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: the biogas tank is characterized in that the top of the tank body (1) is fixedly communicated with an air outlet pipe (4), one end of the air outlet pipe (4) penetrates through the top of the tank body (1) and extends into the air storage chamber (2), the air outlet pipe (4) is sequentially and fixedly connected with an electromagnetic one-way valve (5), a biogas filter (6) and a biogas flowmeter (7), and the pressure sensor (301) is electrically connected with the electromagnetic one-way valve (5), the biogas filter (6) and the biogas flowmeter (7) respectively.

4. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: stirring subassembly (8) include motor (801) and pivot (802), motor (801) fixed mounting is in the top of the jar body (1), the output shaft fixed connection of pivot (802) one end and motor (801), the other end of pivot (802) runs through jar body (1) top and reservoir (2) in proper order and extends to jar body (1) in be close to the bottom, the other end rotation of pivot (802) is connected in the inside of the jar body (1).

5. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 4, characterized in that: stirring subassembly (8) still include connecting block (803), stirring arc pole (804) and stirring branch (805), connecting block (803) equidistance distributes in the surface of pivot (802), stirring arc pole (804) fixed connection is in one side of connecting block (803), stirring branch (805) are connected on stirring arc pole (804).

6. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 5, characterized in that: stirring arc pole (804) set up to six groups, six groups stirring arc pole (804) ring shape equidistance distributes in a week of connecting block (803), stirring branch (805) slope is fixed in one side of stirring arc pole (804).

7. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: the fermentation liquor backflow component (9) comprises a water inlet pipe (901) and a hydraulic pump (902), one end of the water inlet pipe (901) penetrates through the side wall of the tank body (1) and extends to the bottom in the tank body (1), and the other end of the water inlet pipe (901) is fixedly communicated with the hydraulic pump (902).

8. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 7, characterized in that: the fermentation liquor backflow component (9) further comprises a water conveying pipe (903) and a spray head (904), one end of the water conveying pipe (903) is fixedly connected with the hydraulic pump (902), the other end of the water conveying pipe (903) penetrates through the side wall of the tank body (1) and extends into the tank body (1), the spray head (904) is fixedly communicated with the other end of the water conveying pipe (903), and the spray head (904) is arranged below the air storage chamber (2).

9. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: the utility model discloses a gas storage tank, including jar body (1), blow off pipe (11) and blow off pipe (10), the fixed intercommunication of jar body (1) one side lateral wall has blow off pipe (11), blow off pipe (11) set up in the below of gas receiver (2), blow off pipe (11) set up in the bottom of being close to jar body (1), all install the valve on blow off pipe (10) and blow off pipe (11).

10. The anaerobic biogas fermentation tank convenient for pressure regulation according to claim 1, characterized in that: the fixed intercommunication of jar body (1) one side lateral wall has discharging pipe (12) and inlet pipe (13), inlet pipe (13) one end is run through and is extended to jar interior bottom of body (1), all install the valve on discharging pipe (12) and inlet pipe (13).