CN216764885U - Biogas fermentation tank and biogas system - Google Patents
Biogas fermentation tank and biogas system Download PDFInfo
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- CN216764885U CN216764885U CN202121461994.9U CN202121461994U CN216764885U CN 216764885 U CN216764885 U CN 216764885U CN 202121461994 U CN202121461994 U CN 202121461994U CN 216764885 U CN216764885 U CN 216764885U
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- 238000000855 fermentation Methods 0.000 title claims abstract description 72
- 230000004151 fermentation Effects 0.000 title claims abstract description 72
- 239000002002 slurry Substances 0.000 claims abstract description 146
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000005338 heat storage Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 33
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 description 43
- 230000000694 effects Effects 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000005484 gravity Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application provides a biogas fermentation tank and a biogas system, wherein the biogas fermentation tank comprises a tank body, a biogas slurry feeding port, a biogas outlet, a biogas residue discharging port and a plurality of biogas slurry circulating pipe orifices are arranged on the tank body; the biogas slurry circulating pipe openings comprise a first biogas slurry circulating pipe opening arranged at the bottom of the tank body and a second biogas slurry circulating pipe opening arranged on the side wall or the top of the tank body; the circulating pump is arranged at the first biogas slurry circulating pipe opening; the biogas slurry circulating pipe is connected with the tank body through the circulating pump and the second biogas slurry circulating port and forms a closed loop with the inner cavity of the tank body; the circulating pump is used for extracting biogas slurry from the tank body and outputting the biogas slurry to the biogas slurry circulating pipe. The biogas fermentation tank utilizes the circulating pump and the biogas slurry circulating pipe to realize stirring of biogas slurry in the tank body, thereby avoiding biogas residues in the biogas slurry from being condensed into blocks and realizing high-efficiency production of biogas.
Description
Technical Field
The application relates to the technical field of biogas, in particular to a biogas fermentation tank and a biogas system.
Background
The biogas is a mixed gas, the main component of the biogas is methane, and the biogas can be directly combusted for energy supply. The marsh gas can be generated by fermenting various organic matters such as human and animal excreta, straws, sewage and the like under the anaerobic condition in a closed space. Therefore, the biogas fermentation technology is the key for effectively obtaining biogas.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a biogas fermentation tank and a biogas system, which are used for realizing efficient production of biogas.
The embodiment of the application provides a biogas fermentation tank, includes: the tank body is provided with a biogas slurry feeding hole, a biogas outlet, a biogas residue discharging hole and a plurality of biogas slurry circulating pipe orifices; the biogas slurry circulating pipe openings comprise a first biogas slurry circulating pipe opening arranged at the bottom of the tank body and a second biogas slurry circulating pipe opening arranged on the side wall or the top of the tank body; the circulating pump is arranged at the first biogas slurry circulating pipe opening; the biogas slurry circulating pipe is connected with the tank body through the circulating pump and the second biogas slurry circulating port and forms a closed loop with the inner cavity of the tank body; the circulating pump is used for extracting biogas slurry from the tank body and outputting the biogas slurry to the biogas slurry circulating pipe.
In above-mentioned implementation structure, through the circulating pump of jar body bottom connection, thereby can with jar body internal natural pond liquid draw to the natural pond liquid circulating pipe downwards, and give natural pond liquid in the natural pond liquid circulating pipe power of upflow, thereby make natural pond liquid constantly export to the natural pond liquid circulating pipe from the first natural pond liquid circulating pipe mouth of bottom, then it is internal to get back to jar body via second natural pond liquid circulating pipe mouth, thereby get back to jar body bottom again under the action of gravity and again get into the natural pond liquid circulating pipe under the circulating pump effect through the first natural pond liquid circulating pipe mouth of bottom, thereby constantly form the circulation, realize the even stirring of dynamics to natural pond liquid in jar body. Simultaneously, as the biogas slurry is downwards extracted into the biogas slurry circulating pipe, the gravity action direction is consistent with the action direction of the circulating pump, so that the biogas slurry is not easy to block up during extraction. Therefore, under the action of the two aspects, the biogas residues in the biogas slurry can be effectively prevented from being condensed into blocks to influence the production effect of the biogas, and the efficient production of the biogas is realized.
Further, the biogas fermentation tank further comprises: and the heating device is arranged in the tank body.
In the implementation structure, the heating device is arranged in the tank body, so that the biogas slurry in the tank body can be in a proper temperature range through the heating device, and the generation of biogas is accelerated.
Further, the heating device is a heat exchange coil; the heat exchange coil is spirally arranged on the inner wall of the tank body.
In the implementation structure, the heat exchange coil is spirally arranged on the inner wall of the tank body, so that the heat exchange coil can heat the biogas slurry in the tank body more uniformly, and the biogas generation effect is improved; on the other hand, the heat exchange coil is spirally arranged on the inner wall of the tank body, so that the pipeline of the heat exchange coil which can be arranged can be longer, the heating area is larger, and the biogas generating effect can be further improved.
Further, the biogas fermentation tank further comprises: the temperature sensor is arranged in the tank body and used for monitoring the fermentation temperature of the biogas slurry in the tank body and sending the fermentation temperature to the preset control equipment, so that the control equipment controls the flow of the heating medium in the heat exchange coil according to the fermentation temperature of the biogas slurry.
In above-mentioned implementation structure, through at this internal temperature sensor that sets up of jar to can realize the real-time supervision to jar internal natural pond liquid temperature of body, and realize the control to the heat medium flow in the heat exchange coil through controlgear, thereby can reach the accurate control to jar internal natural pond liquid fermentation temperature of body, thereby make the production effect of marsh gas better.
Furthermore, the biogas slurry circulating pipes are multiple; one end of each biogas slurry circulating pipe is connected with the outlet of the circulating pump, and the other end of each biogas slurry circulating pipe is respectively connected with different second biogas slurry circulating ports.
In the implementation process, a plurality of biogas slurry circulating pipes are arranged, one ends of the biogas slurry circulating pipes are connected to the outlets of the circulating pumps, and the other ends of the biogas slurry circulating pipes are respectively connected with different second biogas slurry circulating ports. Therefore, on one hand, the biogas slurry can flow back into the tank body from the second biogas slurry circulation ports at different positions, so that the biogas slurry in the tank body is stirred more uniformly, and the stirring effect is improved; on the other hand, all biogas slurry circulating pipes are connected through one circulating pump, so that the cost of the whole biogas fermentation tank is lower.
Furthermore, the second biogas slurry circulating ports are multiple and are uniformly distributed on the tank body at intervals.
In the implementation process, as the second biogas slurry circulation ports are uniformly distributed on the tank body at intervals, biogas slurry can flow back to the tank body from the second biogas slurry circulation ports at different positions, so that the stirring of the biogas slurry in the tank body is more uniform, and the stirring effect is improved.
Further, the biogas fermentation tank further comprises: the pressure sensor is arranged at the biogas outlet and used for monitoring the biogas pressure in the tank body and sending the biogas pressure to preset control equipment; and the biogas outlet valve is arranged at the biogas outlet and used for opening to the valve opening indicated by the control signal according to the control signal of the control equipment.
In the implementation process, the pressure sensor is arranged at the biogas outlet, so that the real-time monitoring of the biogas pressure in the tank body can be realized, the biogas output is controlled through the biogas outlet valve, and the biogas pressure in the biogas fermentation tank can be ensured within a safe range.
The embodiment of the application also provides a biogas system, which comprises: a heat source; the heat storage tank is connected with the heat source and used for receiving heat energy of the heat source to heat a heat medium in the heat storage tank; the biogas fermentation tank is connected with the heat medium outlet of the heat storage tank to receive the heat medium output by the heat storage tank to heat biogas slurry.
In the system, the heat storage box is used for storing the heat medium and heating the heat medium by using the heat source, so that the heat medium is supplied to the biogas fermentation tank for heating biogas slurry, the requirement on the biogas slurry heating of the biogas fermentation tank can be effectively met, and the efficient production of biogas is realized.
Further, the heat source is a solar heat collection system.
In the system, the solar heat collection system is adopted as a heat source, so that the use of non-clean energy such as traditional fossil energy is reduced, and energy conservation and emission reduction are realized.
Further, the biogas collecting tank is connected with a biogas outlet of the biogas fermentation tank and used for storing biogas; and the biogas boiler is connected with the biogas collecting tank and the heat storage box so as to heat a heat medium of the heat storage box by using biogas in the biogas collecting tank when the solar heat collection system is insufficient in energy supply.
In the system, the biogas boiler is used for heating the heating medium of the heat storage tank by using biogas when the solar heat collection system is insufficient in energy supply, so that on one hand, the recycling of the biogas is realized, the use of non-clean energy is reduced, the effective compound utilization of renewable energy is realized, and the system is clean and environment-friendly; on the other hand, the heat energy supply to the biogas fermentation tank is ensured, and the generation effect of biogas in the biogas fermentation tank is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a perspective view of a biogas fermentation tank according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a can body according to an embodiment of the present disclosure;
fig. 3 is a front view of a biogas fermentation tank provided in an embodiment of the present application;
FIG. 4 is a schematic top view of a biogas fermentation tank according to an embodiment of the present application;
FIG. 5 is a schematic bottom structure view of a biogas fermentation tank according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a biogas system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a more specific biogas system provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a solar biogas system according to an embodiment of the present application.
Icon: 1-a biogas fermentation tank; 11-a can body; 111-biogas slurry feed port; 112-biogas outlet; 113-a biogas residue discharge port; 114-a first biogas slurry circulating pipe orifice; 115-second biogas slurry circulating pipe orifice; 12-a circulation pump; 13-biogas slurry circulating pipe; 14-a heat exchange coil; 141-heating medium inlet of heat exchange coil; 142-the heating medium outlet of the heat exchange coil; 15-a console; 2-a heat source; 21-a solar energy collection system; 3-a heat storage tank; 4-a biogas collecting tank; 5-a biogas boiler; 6-end user; 7-a water separator; and 8-a water collector.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The first embodiment is as follows:
in order to realize the efficient production of the biogas, the embodiment of the application provides a biogas fermentation tank 1 and a biogas system. Referring to fig. 1 to 5, a biogas fermentation tank 1 provided in the embodiment of the present application includes a tank body 11, a biogas slurry feed inlet 111, a biogas outlet 112, a biogas residue discharge outlet 113, a plurality of biogas slurry circulation pipe orifices, a circulation pump 12, and a biogas slurry circulation pipe 13. Wherein:
the biogas slurry feeding port 111, the biogas outlet 112, the biogas residue discharging port 113 and the plurality of biogas slurry circulating pipe orifices are arranged on the tank body 11, the circulating pump 12 is arranged at the bottom of the tank body 11, and the biogas slurry circulating pipe 13 is connected with the tank body 11 through the circulating pump 12 and the biogas slurry circulating pipe orifices.
In the embodiment of the present application, the biogas slurry circulation pipe port includes a first biogas slurry circulation pipe port 114 disposed at the bottom of the tank body 11 and a second biogas slurry circulation pipe port 115 disposed on the side wall or the top of the tank body 11. Such as shown in fig. 2.
In this embodiment, the circulating pump 12 is disposed at the first biogas slurry circulating pipe opening 114, and an inlet of the circulating pump 12 is connected to the first biogas slurry circulating pipe opening 114. The outlet of the circulating pump 12 can be connected to one end of the biogas slurry circulating pipe 13, and the other end of the biogas slurry circulating pipe 13 can be connected to the second biogas slurry circulating pipe orifice 115, so as to form a closed loop with the inner chamber of the tank body 11.
When the biogas digester works, the circulating pump 12 pumps biogas slurry from the tank body 11 through the first biogas slurry circulating pipe orifice 114 and outputs the biogas slurry downwards to the biogas slurry circulating pipe 13, and the biogas slurry in the biogas slurry circulating pipe 13 is upwards transmitted to the second biogas slurry circulating pipe orifice 115 and enters the tank body 11 again based on the power given by the circulating pump 12, and then returns to the bottom of the tank body 11 under the action of gravity. In this process, because circulating pump 12 and the effect of gravity for the natural pond liquid that exists in the jar body 11 can constantly stir, realizes the stirring to natural pond liquid. In addition, because natural pond liquid is in pumping to natural pond liquid circulating pipe 13 downwards, this just makes action direction of gravity and circulating pump 12 unanimous to can make the difficult stifled knot of extraction to natural pond liquid, thereby guarantee the stirring effect.
It should be noted that, in the embodiment of the present application, the connection between the inlet of the circulating pump 12 and the first biogas slurry circulating pipe orifice 114, the connection between the outlet of the circulating pump 12 and the biogas slurry circulating pipe 13, and the connection between the biogas slurry circulating pipe 13 and the first biogas slurry circulating pipe orifice 114 may be hermetically connected to prevent the biogas slurry from leaking out.
For example, a sealing ring may be disposed at each connection, so that sealing is achieved by sleeving the sealing ring. Alternatively, the sealing of the connection may be achieved by welding, and in the embodiment of the present application, the manner of sealing the connection is not limited.
In addition, it should be noted that, in the embodiment of the present application, the tank body 11 and the biogas slurry circulation pipe 13 may be an integrally formed structure, that is, the tank body 11 and the biogas slurry circulation pipe 13 are integrally formed at the second biogas slurry circulation pipe opening 115.
It should be noted that in the present embodiment, there may be a plurality of biogas slurry circulation pipes 13, and a plurality of biogas slurry circulation pipes 13 are connected to different second biogas slurry circulation ports. Like this for natural pond liquid can flow back to jar body 11 in from the second natural pond liquid circulation mouth of different positions in to the stirring to natural pond liquid in the jar body 11 is more even, thereby improves stirring effect.
Alternatively, one end of the plurality of biogas slurry circulation pipes 13 may be commonly connected to the outlet of the circulation pump 12, and the other ends may be respectively connected to different second biogas slurry circulation ports, for example, as shown in fig. 1. Thus, the biogas slurry output to each biogas slurry circulation pipe 13 can be realized by one circulation pump 12.
In addition, optionally, the number of the first biogas slurry circulation ports and the number of the circulation pumps 12 may be plural, so that one end of each of the plurality of biogas slurry circulation pipes 13 may be connected to the outlets of the different circulation pumps 12, and the other end may be connected to the different second biogas slurry circulation ports. Thus, since each biogas slurry circulation pipe 13 is powered by one circulation pump 12, reliable supply of power can be ensured.
It should be understood that the above two alternative biogas fermenter 1 configurations with multiple biogas slurry recycling pipes 13 are only exemplified in the embodiments of the present application, but not limited thereto.
In this application embodiment, when having a plurality of natural pond liquid circulating pipes 13, each second natural pond liquid circulating port that each natural pond liquid circulating pipe 13 corresponds can be on jar body 11 even interval distribution to the stirring to the natural pond liquid in jar body 11 is more even.
For example, as shown in fig. 1, the biogas fermentation tank 1 may have 4 biogas slurry circulation pipes 13, and the second biogas slurry circulation ports connected to the 4 biogas slurry circulation pipes 13 may be sequentially distributed on the tank body 11 at 90-degree intervals.
It should be noted that the number of the biogas slurry circulating pipes 13 can be set according to actual needs, and is not limited in the embodiment of the present application.
In this application embodiment, natural pond liquid circulating pipe 13 can adopt the hollow material of being difficult for the deformation to make to guarantee the unobstructed nature of circulation of natural pond liquid. However, a hose may be used, and the embodiment of the present application is not limited thereto.
In the embodiment of the application, the position of the biogas slurry feeding hole 111 can be set according to the placement condition of the biogas fermentation tank 1 in practical application, so that the biogas slurry can be conveniently input. Illustratively, the biogas slurry feed port 111 may be disposed at the top of the tank body 11.
Since the biogas will generally float and gather above the biogas fermentation tank 1 in the actual application process, in order to facilitate the output of the biogas, in the embodiment of the present application, the biogas outlet 112 may be disposed at the top of the tank body 11, but not limited thereto.
In the embodiment of the present application, the biogas residue discharge port 113 may be disposed at the bottom of the tank body 11 or on a sidewall near the bottom, so as to facilitate discharge of biogas residue.
It is to be understood that in order to enable the biogas to be fermented quickly, the temperature of the biogas fermenter 1 needs to be controlled within a certain range, for example, within 50 to 60 degrees celsius.
For this reason, in the embodiment of the present application, a heating device may be further disposed in the tank body 11 of the biogas fermentation tank 1, so as to heat the biogas slurry in the tank body 11, so that the temperature of the biogas slurry can be maintained within a desired temperature range.
Exemplarily, referring to fig. 3, the heating device in the embodiment of the present application is a heat exchange coil 14, and a heating medium is flowed through the heat exchange coil 14, so that the heating medium exchanges heat with the biogas slurry in the tank body 11, and the biogas slurry in the tank body 11 is heated.
The heating medium in the embodiments of the present application refers to a medium that can be used for heat exchange, and may be, for example, water, steam, or the like.
It should be further noted that, in this embodiment of the application, the heat exchange coil 14 may be spirally disposed on the inner wall of the tank body 11, so that on one hand, the heat exchange coil 14 may heat the biogas slurry in the tank body 11 more uniformly, and on the other hand, since the heat exchange coil 14 is spirally disposed on the inner wall of the tank body 11, the pipeline of the heat exchange coil 14 that may be disposed may be longer, so as to have a larger heating area, and further improve the biogas generation effect from two aspects.
It should be understood that the heat exchanging coil 14 may be disposed not on the inner wall of the tank body 11 but at the middle position of the chamber of the tank body 11, which is not limited in this embodiment.
It should also be understood that the heating device in the embodiment of the present application may be other devices such as an electric heater besides the heat exchange coil 14, and the implementation manner of the heating device in the embodiment of the present application is not limited.
It is worth noting that in the embodiment of the present application, the tank body 11 may further have a heat insulation layer thereon, and the heat insulation layer may cover the outer surface of the tank body 11, so as to reduce heat loss in the tank body 11 and improve energy utilization rate.
In this embodiment, the insulating layer may be made of a material having heat insulating properties, such as polystyrene foam, and is not limited in this embodiment.
As shown in fig. 6, the biogas system provided in the embodiment of the present application includes: a heat source 2, a heat storage box 3 and a biogas fermentation tank 1 provided in the embodiment of the application. Wherein:
the heat storage tank 3 is connected with the heat source 2 to receive the heat energy of the heat source 2 to heat a heat medium in the heat storage tank 3, and the biogas fermentation tank 1 is connected with a heat medium outlet of the heat storage tank 3 to receive the heat medium output by the heat storage tank 3 to heat biogas slurry.
It should be noted that in the embodiment of the present application, a heat medium may be stored in the heat storage tank 3, and a heat medium outlet of the heat storage tank 3 may be connected to the heat exchange coil 14 of the biogas fermentation tank 1 through a pipeline, so as to implement the input of the heat medium in the heat exchange coil 14.
It is noted that in the embodiments of the present application, the biogas system may further include a control device.
In addition, in order to monitor the temperature of the biogas slurry in the tank body 11 and ensure that the fermentation temperature of the biogas slurry in the tank body 11 is substantially kept within a required temperature range (for example, kept at 55 ℃), a temperature sensor may be further disposed in the biogas fermentation tank 1.
In this application embodiment, temperature sensor can set up in jar body 11 to the natural pond liquid fermentation temperature in jar body 11 is monitored, and can send natural pond liquid fermentation temperature to controlgear, so that controlgear can be according to the heat medium flow in the natural pond liquid fermentation temperature control heat exchange coil 14.
For example, the control device may control the opening of the valve in the pipeline between the heat storage tank 3 and the heat exchange coil 14 according to the biogas slurry fermentation temperature, so as to control the flow rate of the heating medium in the heat exchange coil 14.
In the above example, the valve may be disposed at the heat medium outlet of the heat storage tank 3, at the heat medium inlet 141 of the heat exchange coil 14, or in the middle of the pipeline, which is not limited in this embodiment of the present application.
It should be noted that, in order to obtain a more accurate biogas slurry fermentation temperature, a plurality of temperature sensors may be provided in the embodiment of the present application, respectively at the upper part, the middle part and the lower part of the tank body 11, and temperature sensors may also be provided at the heat medium inlet 141 and the heat medium outlet 142 of the heat exchange coil 14.
In addition, in order to monitor the pressure inside the tank body 11 and ensure that the pressure inside the tank body 11 is within a safe range, a pressure sensor may be further disposed in the biogas fermentation tank 1 for monitoring the biogas pressure inside the tank body 11 and sending the biogas pressure to a preset control device. For example, the pressure sensor may be provided at the biogas outlet 112.
In the embodiment of the present application, a biogas outlet valve may be further disposed at the biogas outlet 112 of the biogas fermentation tank 1, so that the control device may generate a corresponding control signal according to the biogas pressure transmitted by the pressure sensor, thereby controlling the opening of the biogas outlet valve to the valve opening indicated by the control signal.
In this embodiment of the application, the control device may be a preset background server or a handheld terminal of each engineer, and the like, which is not limited in this embodiment of the application.
It should be noted that, in the embodiment of the present application, a wireless communication module, such as a GPRS (General Packet Radio Service) module, may be disposed in the temperature sensor and the pressure sensor, so as to implement a communication connection with the control device, but not limited thereto.
Similarly, in the embodiment of the present application, the control device and the biogas outlet valve may realize the transmission of the control signal by arranging a wireless communication module (such as a GPRS module) in the two devices.
In this embodiment, a console 15 may be disposed outside the biogas fermentation tank 1, and the console 15 may communicate with a temperature sensor and a pressure sensor disposed in the biogas fermentation tank 1, so that the console 15 may obtain the biogas slurry fermentation temperature and the biogas pressure of the biogas fermentation tank 1 and forward the biogas slurry fermentation temperature and the biogas pressure to the control device. In addition, the console 15 can also display the biogas slurry fermentation temperature and the biogas pressure of the biogas fermentation tank 1, so that the engineer can check the biogas slurry conveniently.
Similarly, in the embodiment of the present application, a wireless communication module, such as a GPRS module, a bluetooth module, etc., may be disposed in the temperature sensor and the pressure sensor, so as to implement a communication connection with the console 15, but not limited thereto.
And the console 15 and the control device can realize signal transmission by arranging a wireless communication module (such as a GPRS module) in the two devices.
When having a console 15, a control signal of the control device may be sent to the console 15, whereby the control console 15 controls the opening of the biogas outlet valve to the valve opening indicated by the control signal, but not as a limitation.
It should be noted that in the present embodiment, the heat source 2 may be implemented by using a solar heat collecting system, so that the heating of the heat medium is implemented by using solar energy, but not limited thereto.
In the embodiment of the present application, referring to fig. 7, a biogas collecting tank 4 and a biogas boiler 5 may also be provided in the biogas system. The biogas collecting tank 4 is connected with a biogas outlet 112 of the biogas fermentation tank 1 and is used for storing biogas; the biogas boiler 5 is connected with the biogas collecting tank 4 and the heat storage tank 3, so that when the energy supply of the heat source 2 is insufficient, the heat medium of the heat storage tank 3 is heated by the biogas in the biogas collecting tank 4.
In the embodiment of the present application, referring to fig. 8, the biogas system may further include an end user 6, and a water separator 7 and a water collector 8 may be disposed between the biogas boiler 5 and the end user 6, so as to supply the heating medium heated by the biogas boiler 5 to a plurality of end users 6.
Similarly, in the embodiment of the present application, a water separator 7 and a water collector 8 may be disposed between the heat storage tank 3 and the biogas fermentation tank 1, so as to facilitate the supply of the heat medium in the heat storage tank 3 to a plurality of biogas fermentation tanks 1.
It should be noted that, in the embodiment of the present application, temperature sensors and pressure sensors may also be disposed in the heat storage tank 3, the biogas collecting tank 4 and the end user 6, so as to control the heat medium flow or the biogas flow of the heat storage tank 3, the biogas collecting tank 4 and the end user 6 through a control device.
It should be noted that the end user 6 in the embodiment of the present application refers to a device used by a user located at the end of the system, such as a heating pipe in the home of the user.
It should be noted that the biogas described in the embodiments of the present application refers to the combustible gas generated by the biogas fermentation tank 1 after fermenting the biogas slurry, and should not be narrowly understood as methane.
The biogas fermentation tank 1 that this application embodiment provided, can be through the circulating pump 12 of jar body 11 bottom connection, thereby can be with jar body 11 in the interior natural pond liquid of liquid downwards extract to natural pond liquid circulating pipe 13, and give natural pond liquid in natural pond liquid circulating pipe 13 power of upflow, thereby make natural pond liquid constantly export to natural pond liquid circulating pipe 13 from the first natural pond liquid circulating pipe mouth 114 of bottom, then in getting back to jar body 11 via second natural pond liquid circulating pipe mouth 115, thereby get back to jar body 11 bottom again under the action of gravity and again get into natural pond liquid circulating pipe 13 under the effect of circulating pump 12 via the first natural pond liquid circulating pipe mouth 114 of bottom, thereby constantly form the circulation, realize the even stirring of dynamics to natural pond liquid in jar body 11. Meanwhile, as the biogas slurry is downwards pumped into the biogas slurry circulating pipe 13, the action direction of gravity is consistent with that of the circulating pump 12, so that the biogas slurry is not easy to block up during pumping. Therefore, under the action of the two aspects, the biogas residues in the biogas slurry can be effectively prevented from being condensed into blocks to influence the production effect of the biogas, and the efficient production of the biogas is realized.
In addition, the heat exchange coil 14 can be arranged on the inner wall of the tank body 11 in a spiral manner, so that the heat exchange coil 14 can heat the biogas slurry in the tank body 11 more uniformly, the heating area is larger, the biogas fermentation rate is increased, and the biogas generation effect is improved.
In addition, the biogas system provided by the embodiment of the application can realize the control of the flow of the heating medium in the biogas fermentation tank 1, and can maintain the temperature of the biogas liquid in the tank body to be constant within a required temperature range, so that the constant fermentation temperature and the high-efficiency gas production efficiency can be still maintained even under cold conditions in winter and at night. Meanwhile, the biogas system provided by the embodiment of the application can heat the biogas fermentation tank 1 by using a solar heat collection technology, so that the renewable energy sources are effectively utilized, and energy conservation and emission reduction are realized.
Example two
The embodiment of the application is based on the first embodiment, and the application is exemplified by taking a biogas system taking a heating medium as water as an example.
Referring to fig. 8, in the biogas system, a solar heat collecting system 21 collects solar energy to heat water, and then the water flows into a heat storage tank 3.
The heat storage tank 3 inputs hot water into the heat exchange coil 14 of the biogas fermentation tank 1, so that biogas slurry in the biogas fermentation tank 1 is heated, and biogas generation is promoted. The generated biogas is output to the biogas collecting tank 4 through the biogas outlet 112. The biogas collecting tank 4 supplies biogas to the biogas boiler 5 as required.
The water after heat exchange in the heat exchange coil 14 is output to the solar heat collecting system 21 and flows back to the heat storage tank 3.
Whereas the biogas boiler 5 heats the water with biogas and thus is mainly supplied to each end user 6.
When the solar heat collecting system 21 is short of energy, a part of the water after heat exchange in the heat exchange coil 14 is output to the biogas boiler 5, so that the biogas boiler 5 is used for heating, and then the water flows back to the heat storage tank 3.
The biogas system of the embodiment realizes the compound utilization of clean energy, reduces the use of the traditional fossil energy, and is clean and environment-friendly.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise specified or limited more specifically, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (9)
1. A biogas fermentation tank is characterized by comprising:
the tank body is provided with a biogas slurry feeding hole, a biogas outlet, a biogas residue discharging hole and a plurality of biogas slurry circulating pipe orifices; the biogas slurry circulating pipe openings comprise a first biogas slurry circulating pipe opening arranged at the bottom of the tank body and a second biogas slurry circulating pipe opening arranged on the side wall or the top of the tank body;
the circulating pump is arranged at the first biogas slurry circulating pipe opening;
the biogas slurry circulating pipe is connected with the tank body through the circulating pump and the second biogas slurry circulating port and forms a closed loop with the inner cavity of the tank body;
the circulating pump is used for downwards pumping the biogas slurry in the tank body into the biogas slurry circulating pipe;
the biogas slurry circulating pipes are multiple; one end of each biogas slurry circulating pipe is connected with the outlet of the circulating pump, and the other end of each biogas slurry circulating pipe is respectively connected with different second biogas slurry circulating ports.
2. The biogas fermenter of claim 1, further comprising:
and the heating device is arranged in the tank body.
3. Biogas fermenter according to claim 2, wherein the heating device is a heat exchange coil; the heat exchange coil is spirally arranged on the inner wall of the tank body.
4. The biogas fermenter of claim 3, further comprising:
the temperature sensor is arranged in the tank body and used for monitoring the fermentation temperature of the biogas slurry in the tank body and sending the fermentation temperature to the preset control equipment, so that the control equipment controls the flow of the heating medium in the heat exchange coil according to the fermentation temperature of the biogas slurry.
5. The biogas fermentation tank of claim 1, wherein the second biogas slurry circulation ports are multiple, and the second biogas slurry circulation ports are uniformly distributed on the tank body at intervals.
6. Biogas fermenter according to one of the claims 1 to 5, wherein the biogas fermenter further comprises:
the pressure sensor is arranged at the biogas outlet and used for monitoring the biogas pressure in the tank body and sending the biogas pressure to preset control equipment;
and the biogas outlet valve is arranged at the biogas outlet and used for opening to the valve opening indicated by the control signal according to the control signal of the control equipment.
7. A biogas system, comprising:
a heat source;
the heat storage tank is connected with the heat source and used for receiving heat energy of the heat source to heat a heat medium in the heat storage tank;
the biogas fermentation tank of any one of claims 1 to 6, which is connected with the heat medium outlet of the heat storage tank to receive the heat medium output by the heat storage tank for biogas slurry heating.
8. Biogas system according to claim 7, wherein the heat source is a solar energy collection system.
9. The biogas system of claim 8, further comprising:
the methane gas collecting tank is connected with a methane outlet of the methane fermentation tank and is used for storing methane;
and the biogas boiler is connected with the biogas collecting tank and the heat storage box so as to heat a heat medium of the heat storage box by using biogas in the biogas collecting tank when the solar heat collection system is insufficient in energy supply.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118064265A (en) * | 2024-04-17 | 2024-05-24 | 山西资环科技股份有限公司 | Biogas slurry hydrolysis tank with double-pump temperature-regulating self-circulation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118064265A (en) * | 2024-04-17 | 2024-05-24 | 山西资环科技股份有限公司 | Biogas slurry hydrolysis tank with double-pump temperature-regulating self-circulation function |
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