CN115127255A - Double-source heat pump taking solar energy-biomass fermentation as heat source - Google Patents
Double-source heat pump taking solar energy-biomass fermentation as heat source Download PDFInfo
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- 238000005338 heat storage Methods 0.000 claims abstract description 37
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The invention discloses a double-source heat pump taking solar energy-biomass fermentation as a heat source, which comprises a heat pump system, a solar heat collection system and a biomass fermentation system, wherein the heat collection and heat storage of the solar heat collection system are respectively realized by a solar heat collector and a heat storage water tank, the heat production and heat transfer of the biomass fermentation system are respectively realized by aerobic fermentation and a heat exchange coil pipe of a mixed material, and the solar heat collection system and the biomass fermentation system are respectively connected with the heat pump system in series; the invention is designed aiming at the phenomenon that the traditional heat pump influences condensation heat release and is easy to generate frosting due to low temperature and over low evaporation temperature in winter, thereby solving the problem that the traditional heat pump is influenced by low environmental temperature efficiency, overcoming the influence of day and night alternation and weather change on a solar heat pump, reasonably utilizing resources and reducing the environmental pollution of organic wastes.
Description
Technical Field
The invention belongs to the field of energy utilization, and particularly relates to a double-source heat pump taking solar energy-biomass fermentation as a heat source.
Background
Energy is the most basic power for the development and economic growth of the world, is the basis for human survival, and is important force for promoting the development of industry. With the proposal of the targets of carbon peak reaching and carbon neutralization, people pay more and more attention to energy conservation and emission reduction, and the use of clean energy sources is more and more extensive.
The solar energy has rich resources, wide distribution and inexhaustible energy, is clean energy, but has intermittent and rarefied properties which cannot be avoided by the solar energy; on the other hand, as a big agricultural country, China can produce a large amount of crop straws every year. A large amount of organic matters which are difficult to naturally degrade in the straws occupy land resources and influence other crops to absorb and digest nutrient substances in soil; meanwhile, the livestock and poultry breeding industry in China is rapidly developed, the discharge amount of agricultural livestock and poultry breeding excrement waste in China is increased year by year, and the direct discharge can bring serious harm to the environment. Solar energy and biomass energy are renewable energy sources with excellent quality, and have great advantages in the field of future energy utilization.
The solar heat pump has unstable heat supply due to day and night alternation and weather change, and sometimes even can not meet the requirement; the biomass energy has wide source and rich resources, and a large amount of heat can be generated by carrying out aerobic fermentation on the biomass energy. If the solar heat pump and the heat pump are used in a combined mode, the defects of the solar heat pump can be overcome, the maximum utilization of resources is achieved, and the energy efficiency ratio of the heat pump is higher.
Disclosure of Invention
Aiming at the defects of the existing solar heat pump, the discharge of wastes in the agricultural and livestock industries and the problem of low efficiency of the traditional heat pump caused by the environmental temperature, the invention provides the double-source heat pump system taking solar energy-biomass fermentation as the heat source, which efficiently utilizes the solar energy resources and the resources in the agricultural and livestock industries, not only solves the problem of low efficiency of the traditional heat pump caused by the environmental temperature, but also overcomes the intermittent and rarefied properties which are difficult to avoid by the solar heat pump, reasonably utilizes the resources, reduces the environmental pollution of organic wastes, and improves the energy efficiency of the heat pump unit.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a double-source heat pump taking solar energy-biomass fermentation as a heat source comprises a heat pump system, a solar heat collection system, a biomass fermentation system, a third temperature control switch 18, a fourth three-way valve 19 and a fourth temperature control switch 20; the solar heat collection system is respectively connected with the biomass fermentation system and the heat pump system, and the biomass fermentation system is connected with the heat pump system;
the heat pump system comprises an evaporator 1, a compressor 2, a condenser 3 and a throttling device 4; the solar heat collection system comprises a solar heat collector 5, a heat storage water tank 6, a first temperature control switch 7 and a first circulating water pump 8; the biomass fermentation system comprises a biomass aerobic fermentation tank 10, a heat exchange coil 11, a second temperature control switch 12, a first three-way valve 13, a second circulating water pump 14, a second three-way valve 15 and a third three-way valve 16;
an evaporation chamber and a heating chamber are arranged in the evaporator 1, a circulating pump is arranged in the heating chamber, the evaporation chamber is a spiral pipeline, an outlet of the evaporation chamber of the evaporator 1 is connected to an air suction port of the compressor 2, an air exhaust port of the compressor 2 is connected to a primary side inlet of the condenser 3, a primary side outlet of the condenser 3 is connected to an inlet of the throttling device 4, an outlet of the throttling device 4 is connected with an inlet of the evaporation chamber of the evaporator 1, and a closed loop is formed; the pipeline is filled with refrigerant; the condenser 3 is connected with a user 21;
the hot water outlet of the solar heat collector 5 is connected with one end of a first temperature control switch 7, the other end of the first temperature control switch 7 is connected with the primary side inlet of a heat storage water tank 6, and the primary side outlet of the heat storage water tank 6 is connected with the water inlet of the solar heat collector 5 through a first circulating water pump 8 to form a closed loop;
an outlet of a heat exchange coil 11 in the biomass aerobic fermentation tank 10 is connected with one end of a second temperature control switch 12, the other end of the second temperature control switch 12 is connected with a first interface of a first three-way valve 13, a second interface of the first three-way valve 13 is connected with an inlet of a heating chamber of the evaporator 1, an outlet of the heating chamber of the evaporator 1 is connected with a first interface of a second three-way valve 15 through a second circulating water pump 14, a second interface of the second three-way valve 15 is connected with a first interface of a third three-way valve 16, and a second interface of the third three-way valve 16 is connected with an inlet of the heat exchange coil 11 in the biomass aerobic fermentation tank 10, so that a circulation is formed;
a secondary side inlet of the heat storage water tank 6 is connected with one end of a third temperature control switch 18, and the other end of the third temperature control switch 18 is connected with a third interface of a second three-way valve 15; a third port of the third three-way valve 16 is connected with a first port of a fourth three-way valve 19, a second port of the fourth three-way valve 19 is connected with a third port of the first three-way valve 13, a third port of the fourth three-way valve 19 is connected with one end of a fourth temperature control switch 20, and the other end of the fourth temperature control switch 20 is connected with a secondary side outlet of the hot water storage tank 6; the connecting parts are mutually connected through pipelines.
The condenser 3 is a double-pipe heat exchanger.
A ball valve 9 is arranged in the heat storage water tank 6, and a heat insulation layer is arranged outside the heat storage water tank.
The lower end of the biomass aerobic fermentation tank 10 is connected with an air pump 17 to produce an aerobic environment.
Animal waste, crop straws, a biomass fermentation microbial inoculum and water are placed in the biomass aerobic fermentation tank, and the mass ratio of the crop straws to the animal waste is 2:7-2: 9; the animal manure is cow manure, and the crop straw is rape straw; the activation temperature of the biomass fermentation inoculum is-10 ℃, and the mass ratio of the addition amount of the biomass fermentation inoculum to the mixture of the crop straws and the animal wastes is 1:8000-5: 8000; the initial water content in the water-regulated biomass aerobic fermentation tank is 50-60%.
The user 21 comprises heating or geothermal.
The solar heat collection system and the biomass fermentation system can be respectively used as heat sources of a heat pump system.
The invention has the beneficial effects that:
(1) the double-source heat pump provided by the invention overcomes the defects that the heat supply amount is unstable and sometimes even can not meet the requirements due to day and night alternation and weather change of the traditional solar heat pump, is connected with the biomass fermentation system in parallel, provides a higher and more stable environment for the evaporator, and improves the energy efficiency of the heat pump unit.
(2) The double-source heat pump biomass fermentation system provided by the invention can be used for carrying out aerobic composting and heat production on crop waste and livestock and poultry manure in proportion, carrying out resource utilization, reducing the environmental pollution caused by organic waste and fully utilizing the fermentation heat production of the organic waste.
(3) The double-source heat pump provided by the invention improves the problems that the conventional household air source heat pump is low in temperature to below zero in cold winter in the north, the problem that the air source heat pump system has low air return quantity of a compressor due to low evaporation temperature, the evaporation quantity of a working medium is low, so that condensation heat release is influenced, and the frosting phenomenon is easily caused is solved, the energy efficiency ratio of the heat pump is improved to the maximum extent, and the efficiency is improved by 50% -60% compared with that of the conventional heat pump.
Drawings
Fig. 1 is a schematic structural diagram of a dual-source heat pump according to embodiment 1 of the present invention;
in the figure: 1-an evaporator; 2-a compressor; 3-a condenser; 4-a throttling device; 5-a solar heat collector; 6-a heat storage water tank; 7-a first temperature control switch; 8-a first circulating water pump; 9-ball valve; 10-biomass aerobic fermentation tank; 11-a heat exchange coil; 12-a second temperature controlled switch; 13-a first three-way valve; 14-a second circulating water pump; 15-a second three-way valve; 16-a third three-way valve; 17-an air pump; 18-a third temperature control switch; 19-a fourth three-way valve; 20-a fourth temperature control switch; 21-a user;
FIG. 2 is a graph showing the temperature change in a fermentor during one cycle of aerobic fermentation of biomass.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown and described, and in which many specific details are set forth in order to provide a thorough understanding of the invention.
Example 1
A double-source heat pump using solar energy-biomass fermentation as a heat source, as shown in fig. 1, comprises a heat pump system, a solar heat collection system, a biomass fermentation system, a third temperature control switch 18, a fourth three-way valve 19 and a fourth temperature control switch 20; the solar heat collection system is respectively connected with the biomass fermentation system and the heat pump system, and the biomass fermentation system is connected with the heat pump system; the solar heat collection system and the biomass fermentation system can be respectively used as heat sources of the heat pump system; meanwhile, the solar heat collection system also provides an initial heat source for the biomass fermentation system at low temperature;
the heat pump system comprises an evaporator 1, a compressor 2, a condenser 3 and a throttling device 4; the solar heat collection system comprises a solar heat collector 5, a heat storage water tank 6, a first temperature control switch 7, a first circulating water pump 8 and a ball valve 9; the biomass fermentation system comprises a biomass aerobic fermentation tank 10, a heat exchange coil 11, a second temperature control switch 12, a first three-way valve 13, a second circulating water pump 14, a second three-way valve 15, a third three-way valve 16 and an air pump 17;
an evaporation chamber and a heating chamber are arranged in the evaporator 1, a circulating pump is arranged in the heating chamber, the evaporation chamber is a spiral pipeline, and a refrigerant circulates in the spiral pipeline; an outlet of an evaporation chamber of the evaporator 1 is connected to an air suction port of the compressor 2, an air exhaust port of the compressor 2 is connected to an inlet of a primary side of the condenser 3, an outlet of the primary side of the condenser 3 is connected to an inlet of the throttling device 4, and an outlet of the throttling device 4 is connected to an inlet of the evaporation chamber of the evaporator 1 to form a closed loop; the condenser 3 is a double-pipe heat exchanger, and the condenser 3 is also connected with a user 21;
a hot water outlet of the solar heat collector 5 is connected with an inlet of a first temperature control switch 7, an outlet of the first temperature control switch 7 is connected with an inlet of a primary side of a heat storage water tank 6, and an outlet of the primary side of the heat storage water tank 6 is connected with a water inlet of the solar heat collector 5 through a first circulating water pump 8 to form a closed loop; a ball valve 9 is arranged in the heat storage water tank 6, and a heat insulation layer is arranged outside;
an outlet of a heat exchange coil 11 in the biomass aerobic fermentation tank 10 is connected with one end of a second temperature control switch 12, the other end of the second temperature control switch 12 is connected with a first interface of a first three-way valve 13, a second interface of the first three-way valve 13 is connected with an inlet of a heating chamber of the evaporator 1, an outlet of the heating chamber of the evaporator 1 is connected with a first interface of a second three-way valve 15 through a second circulating water pump 14, a second interface of the second three-way valve 15 is connected with a first interface of a third three-way valve 16, and a second interface of the third three-way valve 16 is connected with an inlet of the heat exchange coil 11 in the biomass aerobic fermentation tank 10, so that a circulation is formed; the lower end of the biomass aerobic fermentation tank 10 is connected with an air pump 17 to produce an aerobic environment; animal waste, crop straws, a biomass fermentation microbial inoculum and water are placed in the biomass aerobic fermentation tank, and the mass ratio of the crop straws to the animal waste is 2:7-2: 9; the animal manure is cow manure, and the crop straw is rape straw; the activation temperature of the biomass fermentation inoculum is-10 ℃, and the mass ratio of the addition amount of the biomass fermentation inoculum to the mixture of the crop straws and the animal wastes is 1:8000-5: 8000; the initial water content in the water-regulated biomass aerobic fermentation tank is 50-60%;
a secondary side inlet of the heat storage water tank 6 is connected with one end of a third temperature control switch 18, and the other end of the third temperature control switch 18 is connected with a third interface of a second three-way valve 15; a third port of the third three-way valve 16 is connected with a first port of a fourth three-way valve 19, a second port of the fourth three-way valve 19 is connected with a third port of the first three-way valve 13, a third port of the fourth three-way valve 19 is connected with one end of a fourth temperature control switch 20, and the other end of the fourth temperature control switch 20 is connected with a secondary side outlet of the hot water storage tank 6; the connecting parts are connected through pipelines.
Example 2
A use method of a dual-source heat pump system taking solar energy-biomass fermentation as a heat source specifically comprises the following operation modes:
hot water heat storage mode: the temperature of water in the solar thermal collector 5 rises continuously, and when the temperature reaches a set temperature value through detection of the first temperature control switch 7, the circulating water pump 8 is started, and water in the water tank of the solar thermal collector 5 enters the heat storage water tank 6, so that water in the heat storage water tank 6 is heated continuously.
Direct heat supply mode of heat storage water tank: when the fourth temperature control switch 20 detects that the temperature of the outlet water of the heat storage water tank 6 is higher than 50 ℃, the heat storage water tank can be directly used as a heat source for supplying heat, the first circulating water pump 14 and a circulating pump in the evaporator 1 are started, the first three-way valve 13 and the fourth three-way valve 19 are opened to communicate the outlet of the secondary side of the heat storage water tank 6 with an inlet channel of a heating chamber of the evaporator 1, the second three-way valve 15 is opened to communicate a channel between the outlet of the heating chamber of the evaporator 1 and the inlet of the secondary side of the heat storage water tank 6, and hot water in the heat storage water tank 6 circularly supplies heat to the evaporator 1.
Heating mode of biomass fermentation tank: when the maximum temperature of the biomass is 70 ℃ during aerobic fermentation, the time of the temperature being more than 50 ℃ can last for about 25 days, so that the biomass can be used as a heat source to directly supply heat, when the second temperature control switch 12 detects that the temperature of the water discharged from the heat exchange coil 11 in the biomass fermentation tank 10 is more than 50 ℃, the biomass can be used as the heat source to supply heat, at the moment, the first three-way valve 13 is opened to communicate hot water in the heat exchange coil 11 with an inlet channel of a heating chamber of the evaporator 1, the second three-way valve 15 is opened to communicate a channel between an outlet of the heating chamber of the evaporator 1 and an inlet of the heat exchange coil 11, under the action of the second circulating water pump 14, the hot water in the heat exchange coil 11 exchanges heat with a refrigerant in the evaporation chamber 1, the water after the refrigerant is heated flows back to the biomass fermentation tank 10 to be heated, and the heat is circularly supplied; the temperature of water entering the biomass fermentation tank 10 for the first time cannot be too low, the water is communicated with the secondary side outlet of the heat storage water tank 6, the fourth three-way valve 19, the third three-way valve 16 and the inlet of the heat exchange coil 11 of the biomass aerobic fermentation tank 10, hot water is introduced into the heat exchange coil 11 of the biomass aerobic fermentation tank 10, and the water in the heat exchange coil 11 circulates after fermentation starts in the biomass fermentation tank 10.
The heat supply mode of the biomass fermentation tank combined heat storage water tank is as follows: when the sunlight is sufficient and the fourth temperature control switch 20 detects that the water temperature in the heat storage water tank 6 is high enough, the direct heat supply mode of the heat storage water tank 6 is selected; when night in winter and rainy weather and fourth temperature detect that temperature in the heat storage water tank 6 is not enough by temperature control switch 20, when second temperature detect switch 12 detects that temperature is high enough in the heat exchange coil 11, at this moment, the heating chamber export of evaporimeter 1 links to each other with heat storage water tank 6's secondary side entry, heat storage water tank 6 secondary side export links to each other with heat exchange coil 11's entry in biomass fermentation tank 10, heat exchange coil 11's export links to each other with the entry of the heating chamber of evaporimeter 1, the water that comes out from the heating chamber of evaporimeter 1 will pass through heat storage water tank 6 in proper order, biomass fermentation tank 10 carries out the heat transfer, supply heat as the heat source again at last, so circulate.
Hot water flows through a heating chamber in the evaporator 1, a refrigerant (refrigerant R22) in a spiral pipeline of the evaporation chamber is heated and turns into gas, then the refrigerant is compressed into high-temperature and high-pressure gas by a compressor 2, finally the high-temperature and high-pressure gas enters a condenser 3 for condensation, heat is released to a user 21, the heating purpose is achieved, and then the refrigerant enters a throttling device 4 (namely a throttling valve) for pressure reduction and throttling and then enters the evaporator 1, and the cycle is repeated.
The temperature range of the summer operating environment in the embodiment is as follows: at 7-26 ℃, mixed materials of crop straws and livestock and poultry manure are filled in the biomass fermentation tank 10, and the mass ratio of the crop straws to the livestock and poultry manure is 3: 8; the crop straw is rape straw, and the livestock and poultry manure is cow manure; water is also added into the biomass fermentation tank 10 to make the initial water content in the biomass fermentation tank 10 be 50%; the biomass aerobic fermentation tank 10 is also doped with a biomass fermentation microbial inoculum, the activation temperature is-10 ℃, the mass ratio of the addition amount of the biomass fermentation microbial inoculum to the mixture of the crop straws and the animal wastes is 3:8000, the biomass fermentation microbial inoculum is Zhengzhou Wang nongbao biological bacterial fertilizer starter which is a conventional commercial product, and the volume of the fermentation tank is 0.12m 3 Initial volume of the mixture was 0.1m 3 After fermentation is carried out for 36 days, the temperature change in the biomass fermentation tank 10 is shown in fig. 2, after the operation of the heat pump is started for about one hour, the temperature of the mixed material in the biomass fermentation tank is gradually reduced to 45 ℃ from 60 ℃, the trend of the reduction of the material temperature closer to the heat exchange coil 11 is more obvious, the heat exchange effect is better, after the heat pump system is closed, the temperature of the mixed biomass is increased by secondary fermentation, the fermentation period of the mixed biomass is 36 days (the material is recharged after the fermentation is finished), the water content of the mixed material is 60% after the fermentation is finished, the volume is reduced by 27.9%, and the heating coefficient at the highest temperature point is about 4.28; if biomass fermentation tank is bulky, then the heat transfer effect is better, and high temperature maintenance time is more of a specified duration in the jar.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A double-source heat pump taking solar energy-biomass fermentation as a heat source is characterized by comprising a heat pump system, a solar heat collection system, a biomass fermentation system, a third temperature control switch (18), a fourth three-way valve (19) and a fourth temperature control switch (20); the solar heat collection system is respectively connected with the biomass fermentation system and the heat pump system, and the biomass fermentation system is connected with the heat pump system;
the heat pump system comprises an evaporator (1), a compressor (2), a condenser (3) and a throttling device (4); the solar heat collection system comprises a solar heat collector (5), a heat storage water tank (6), a first temperature control switch (7) and a first circulating water pump (8); the biomass fermentation system comprises a biomass aerobic fermentation tank (10), a heat exchange coil (11), a second temperature control switch (12), a first three-way valve (13), a second circulating water pump (14), a second three-way valve (15) and a third three-way valve (16);
an evaporation chamber and a heating chamber are arranged in the evaporator (1), a circulating pump is arranged in the heating chamber, an outlet of the evaporation chamber of the evaporator (1) is connected to an air suction port of the compressor (2), an air exhaust port of the compressor (2) is connected with an inlet of the condenser (3), an outlet of the condenser (3) is connected with an inlet of the throttling device (4), and an outlet of the throttling device (4) is connected with an inlet of the evaporation chamber of the evaporator (1); the pipeline is filled with a refrigerant; the condenser (3) is connected with a user (21);
a hot water outlet of the solar heat collector (5) is connected with one end of a first temperature control switch (7), the other end of the first temperature control switch (7) is connected with a primary side inlet of a heat storage water tank (6), and a primary side outlet of the heat storage water tank (6) is connected with a water inlet of the solar heat collector (5) through a first circulating water pump (8);
an outlet of a heat exchange coil (11) in the biomass aerobic fermentation tank (10) is connected with one end of a second temperature control switch (12), the other end of the second temperature control switch (12) is connected with a first interface of a first three-way valve (13), a second interface of the first three-way valve (13) is connected with an inlet of a heating chamber of the evaporator (1), an outlet of the heating chamber of the evaporator (1) is connected with a first interface of a second three-way valve (15) through a second circulating water pump (14), a second interface of the second three-way valve (15) is connected with a first interface of a third three-way valve (16), and a second interface of the third three-way valve (16) is connected with an inlet of the coil heat exchange coil (11) in the biomass aerobic fermentation tank (10);
a secondary side inlet of the heat storage water tank (6) is connected with one end of a third temperature control switch (18), and the other end of the third temperature control switch (18) is connected with a third interface of a second three-way valve (15); a third interface of the third three-way valve (16) is connected with a first interface of a fourth three-way valve (19), a second interface of the fourth three-way valve (19) is connected with a third interface of the first three-way valve (13), a third interface of the fourth three-way valve (19) is connected with one end of a fourth temperature control switch (20), and the other end of the fourth temperature control switch (20) is connected with a secondary side outlet of the heat storage water tank (6); the connecting parts are mutually connected through pipelines.
2. The dual-source heat pump using solar-biomass fermentation as heat source according to claim 1, characterized in that the condenser (3) is a double pipe heat exchanger.
3. The double-source heat pump taking solar energy-biomass fermentation as a heat source according to claim 1, characterized in that a ball valve (9) is arranged in the heat storage water tank (6), and an insulating layer is arranged outside.
4. The double-source heat pump using solar energy-biomass fermentation as a heat source according to claim 1, characterized in that the lower end of the biomass aerobic fermentation tank (10) is connected with an air pump (17).
5. The double-source heat pump taking solar energy-biomass fermentation as a heat source according to claim 1, characterized in that animal waste, crop straws, a biomass fermentation microbial inoculum and water are placed in the biomass aerobic fermentation tank, and the mass ratio of the crop straws to the animal waste is 2: 7-9; the animal manure is cow manure, and the crop straw is rape straw; the activation temperature of the biomass fermentation inoculum is-10 ℃, and the mass ratio of the addition amount of the biomass fermentation inoculum to the mixture of the crop straws and the animal wastes is 1-5: 8000; the initial water content in the water-regulated biomass aerobic fermentation tank is 50-60%.
6. The dual-source heat pump using solar-biomass fermentation as heat source according to claim 1, characterized in that the user (21) comprises warm or geothermal heat.
Priority Applications (1)
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| KR20090115602A (en) * | 2008-05-02 | 2009-11-05 | 이성우 | Waste heat collection system using heat pump system on excrements fermentation |
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| CN113405273A (en) * | 2021-05-18 | 2021-09-17 | 昆明理工大学 | Biomass source heat pump system with gas compensation function and use method thereof |
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| KR20090115602A (en) * | 2008-05-02 | 2009-11-05 | 이성우 | Waste heat collection system using heat pump system on excrements fermentation |
| CN102297525A (en) * | 2011-07-11 | 2011-12-28 | 同济大学 | High-temperature anaerobic fermentation heating system of solar energy-biogas slurry waste heat recovery type heat pump and operation control method |
| CN106225318A (en) * | 2016-07-25 | 2016-12-14 | 重庆大学 | Can total heat recovery air source heat pump system as low level heat energy with solar energy ground |
| CN110627543A (en) * | 2019-10-30 | 2019-12-31 | 江苏省农业科学院 | Method for promoting compost maturity of livestock and poultry manure through microbial pretreatment |
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