CN112335467B - Day and night soil heating system with fermentation tank as complementary heat source - Google Patents
Day and night soil heating system with fermentation tank as complementary heat source Download PDFInfo
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- CN112335467B CN112335467B CN202011097107.4A CN202011097107A CN112335467B CN 112335467 B CN112335467 B CN 112335467B CN 202011097107 A CN202011097107 A CN 202011097107A CN 112335467 B CN112335467 B CN 112335467B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/02—Treatment of plants with carbon dioxide
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/243—Collecting solar energy
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D7/00—Fertilisers producing carbon dioxide
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention provides a day and night soil heating system taking a fermentation tank as a complementary heat source, wherein one end of a branch water supply pump of the heating system is connected with a heat storage water tank B, the other end of the branch water supply pump is connected with an underground water supply pipeline, and an underground water return pipeline at the tail end of the heat storage water tank A is connected with the heat storage water tank B to form a loop; one end of the main water supply pump is connected with the heat storage water tank A, the other end of the main water supply pump is connected with the underground water supply pipeline, and the underground water return pipeline is finally connected with the heat storage water tank A to form a loop; one end of a fermentation tank water inlet pump is connected with the heat storage water tank B, the other end of the fermentation tank water inlet pump is connected with the fermentation tank, and the fermentation tank is connected with the heat storage water tank B to form a loop; one end of the solar water inlet pump is connected with the heat storage water tank A, the other end of the solar water inlet pump is connected with the solar heat collector, and the solar heat collector is connected with the heat storage water tank A to form a loop. The invention solves the problems of energy consumption, environmental pollution and incapability of continuously heating at night by a single-stage solar heating system, improves the original single-stage solar heating system, takes a fermentation tank as a complementary heat source, reduces the cost and solves the technical problems.
Description
Technical Field
The invention relates to a day and night soil heating system with a fermentation tank as a complementary heat source, and belongs to the technical field of soil heating systems.
Background
As the greenhouse planting of fruits and vegetables is increasingly popularized, but in winter, due to the fact that the soil temperature is too low, root systems of the fruits and vegetables in the greenhouse are easily frozen and damaged by low temperature, the growth of the fruits and vegetables is not facilitated, and therefore the development of a soil heating technology becomes more important. In most rural areas in the north of China, heating is carried out by using heated brick beds, furnaces, coal-fired boilers and the like, the heat conversion rate of the traditional rural heating mode is low, energy waste is huge, soil is heated unevenly, and environmental pollution is serious, so that the clean heating technology is urgently needed to be popularized in the rural areas in the north. At present, clean heating measures mainly comprise modes of changing coal into gas, changing coal into electricity, renewable energy sources and the like, but although the schemes of changing coal into gas and changing coal into electricity are clean energy sources, the problems of overhigh price, safe use, difficult pipeline laying in rural areas, NOX pollution and the like still exist.
At present, the current solar heating system including single-stage and multistage complementary solar heating system, single-stage solar system can not last the heat supply for a long time, and receive duration in sunshine, weather change's influence, supplementary system all is with modes such as electric heating, burning, heat pump, wherein electric heating and burning mode have the extravagant resource and the environmental pollution scheduling problem, and heat pump performance receives external environment to influence great, the problem that heating volume reduces can appear under bad weather condition, the exclusive use can make the working costs too high.
Disclosure of Invention
The invention provides a day and night soil heating system taking a fermentation tank as a complementary heat source, aiming at solving the problems of energy consumption, environmental pollution and incapability of continuously heating at night by a single-stage solar heating system.
The invention provides a day and night soil heating system taking a fermentation tank as a complementary heat source, which comprises a solar heat collector, a heat storage water tank A, the fermentation tank, a heat storage water tank B, two high-temperature container heat exchange devices, a branch water supply pump, a main water supply pump, a fermentation tank water inlet pump, a solar water inlet pump, an underground water supply pipeline and an underground water return pipeline,
one end of the branch water supply pump is connected with the heat storage water tank B, the other end of the branch water supply pump is connected with the underground water supply pipeline, and an underground water return pipeline at the tail end of the heat storage water tank A forms a branch which is connected with the heat storage water tank B to form a loop; one end of the main water supply pump is connected with the heat storage water tank A, the other end of the main water supply pump is connected with the underground water supply pipeline, and the underground water return pipeline is finally connected with the heat storage water tank A to form a loop; one end of the fermentation tank water inlet pump is connected with the heat storage water tank B, the other end of the fermentation tank water inlet pump is connected with the fermentation tank, and the fermentation tank is connected with the heat storage water tank B through a pipeline to form a loop; solar energy intake pump one end is connected heat storage water tank A, and solar collector is connected to one end, and solar collector passes through the pipeline reconnection heat storage water tank A, forms the return circuit, install high temperature container heat transfer device in heat storage water tank A and the heat storage water tank B respectively.
Preferably, the high-temperature container heat exchange device comprises an exhaust pipe, an air inlet pipe and a drain pipe, an air inlet of the high-temperature container heat exchange device is connected with the fermentation tank through the air inlet pipe, an air outlet of the high-temperature container heat exchange device is connected with the greenhouse room through the exhaust pipe, high-temperature carbon dioxide gas and water vapor flowing out of the fermentation tank exchange heat through the inside of the container and simultaneously discharge carbon dioxide gas fertilizer into the greenhouse room, and the drain pipe is arranged at the bottom of the high-temperature container heat exchange device and timely discharges condensed water.
Preferably, a thermocouple and a humidity probe are arranged on the fermentation tank, the thermocouple in the fermentation tank is used for monitoring temperature change in the fermentation tank, and the thermocouple transmits a signal to the electromagnetic valve, so that the opening and closing of the electromagnetic valve are controlled, and the self-adaptive control of heat extraction from the fermentation tank is realized; the humidity probe is used for monitoring the change of the humidity in the fermentation tank, so that whether water leakage occurs in the internal pipeline is judged, and the internal pipeline is convenient to overhaul in time.
Preferably, the solenoid valve includes solenoid valve A, solenoid valve B, solenoid valve C, solenoid valve D and solenoid valve E, solenoid valve D sets up in total working shaft one side, solenoid valve E sets up in branch road working shaft one side, solenoid valve C sets up in fermentation vat intake pump one side, solenoid valve A and solenoid valve B set up respectively on secret return water pipeline and branch pipe thereof, and the fermentation vat intake pump is normally opened, realizes the control to the fermentation vat temperature through solenoid valve C, the thermocouple is to solenoid valve transmission signal for when the fermentation vat temperature is low self-closing solenoid valve C, water will not flow into the fermentation vat again, wait that the fermentation vat makes the temperature rise then solenoid valve C is automatic to be opened through the fermentation of microorganism, continues the circulation, opens total working shaft and solar energy intake pump when the day water supply mode, closes branch road working shaft, and opens the branch road working shaft in the night mode, closes total working shaft and solar energy intake pump, the temperature of all the other valve control pipeline sections separately, then valve self-closing when the temperature is unsatisfied to set for the requirement.
Preferably, the fermentation tank and the two heat storage water tanks are wrapped by heat insulation layers to prevent heat loss.
The day and night soil heating system taking the fermentation tank as the complementary heat source has the beneficial effects that:
1. the day and night soil heating system with the fermentation tank as the complementary heat source is improved on the basis of the original single-stage solar heating system, combines the respective advantages of solar energy and fermentation tank heating, utilizes the high-efficiency heat production of the solar energy system and the continuous heating capacity of the fermentation tank when the illumination is sufficient, has complementary advantages, reduces the waste of resources, saves the cost, and solves the problems of environmental pollution, incapability of continuously supplying heat for a long time, long time of sunshine and weather change of the solar energy heating system, thereby realizing continuous heating all day.
2. The day and night soil heating system with the fermentation tank as the complementary heat source is characterized in that the fermentation tank is used as the heat source, the advantage of the day and night soil heating system is complementary with that of a solar heating system, and different from other heat sources, the heating quantity from the fermentation tank can be automatically controlled through opening and closing of the electromagnetic valve, so that the self-adaptive controllable heating is realized. Utilize solar energy system to heat when sufficient sunshine daytime, will supply heat in hot water storage through intensification in the fermentation vat in heat storage tank B simultaneously, when night with sunshine not enough, supply heat through fermentation vat and heat storage tank B, solved the not enough and night compensation heating problem of sunshine, realized that the whole day lasts the heating, energy saving and emission reduction avoids the purpose of wasting of resources.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In the drawings:
FIG. 1 is a schematic diagram of a day and night soil heating system using a fermentation tank as a complementary heat source according to the present invention;
in the figure, 1-a solar heat collector, 2-a heat storage water tank A, 3-a fermentation tank, 4-a heat storage water tank B, 5-a high-temperature container heat exchange device, 6-an exhaust pipe, 7-an air inlet pipe, 8-a drain pipe, 9-an electromagnetic valve A, 10-an electromagnetic valve B, 11-an electromagnetic valve C, 12-an electromagnetic valve D, 13-an electromagnetic valve E, 14-a branch water supply pump, 15-a main water supply pump, 16-a fermentation tank water inlet pump, 17-a solar water inlet pump, 18-an underground water supply pipeline, 19-an underground water return pipeline, 20-a thermocouple and 21-a humidity probe.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1. The day and night soil heating system using the fermentation tank as a complementary heat source comprises a solar heat collector 1, a heat storage water tank A2, a fermentation tank 3, a heat storage water tank B4, two high-temperature container heat exchange devices 5, a branch water supply pump 14, a main water supply pump 15, a fermentation tank water inlet pump 16, a solar water inlet pump 17, an underground water supply pipeline 18 and an underground water return pipeline 19,
one end of the branch water supply pump 14 is connected with the heat storage water tank B4, the other end of the branch water supply pump is connected with the underground water supply pipeline 18, and an underground water return pipeline 19 at the tail end of the heat storage water tank A2 forms a branch which is connected with the heat storage water tank B4 to form a loop; one end of the main water supply pump 15 is connected with the heat storage water tank A2, the other end of the main water supply pump is connected with the underground water supply pipeline 18, and the underground water return pipeline 19 is finally connected with the heat storage water tank A2 to form a loop; one end of the fermentation tank water inlet pump 16 is connected with the heat storage water tank B4, the other end of the fermentation tank water inlet pump is connected with the fermentation tank 3, and the fermentation tank 3 is connected with the heat storage water tank B4 through a pipeline to form a loop; one end of the solar water inlet pump 17 is connected with the heat storage water tank A2, the other end of the solar water inlet pump is connected with the solar heat collector 1, the solar heat collector 1 is connected with the heat storage water tank A2 through a pipeline 19 to form a loop, and the heat storage water tank A2 and the heat storage water tank B4 are internally provided with the high-temperature container heat exchange devices 5 respectively.
High temperature container heat transfer device 5 includes blast pipe 6, intake pipe 7 and drain pipe 8, high temperature container heat transfer device 5's air inlet passes through intake pipe 7 with fermentation vat 3 to be connected, and the gas vent is connected through this blast pipe 6 with the big-arch shelter room, and the high temperature carbon dioxide gas and the vapor that flow out from fermentation vat 3 are through the inside heat transfer of container, simultaneously to the indoor discharge carbon dioxide gas fertilizer of big-arch shelter, 5 bottoms of high temperature container heat transfer device are equipped with drain pipe 8, in time discharge comdenstion water. The heat exchange device of the high-temperature container in the hot water storage tank B4 is the same as that of the hot water storage tank A2. The high-temperature gas from the fermentation tank can heat the water in the heat storage water tank by utilizing the characteristics of sensible heat and latent heat, and can discharge carbon dioxide gas fertilizer into the greenhouse, thereby realizing the full utilization of resources.
The fermentation tank 3 is provided with a thermocouple 20 and a humidity probe 21, the thermocouple 20 in the fermentation tank 3 is used for monitoring the temperature change in the fermentation tank 3, and the thermocouple 20 transmits a signal to the electromagnetic valve, so that the opening and closing of the electromagnetic valve are controlled, and the self-adaptive control of heat extraction from the fermentation tank is realized; the humidity probe 21 is used for monitoring the change of the humidity in the fermentation tank 3, so as to judge whether water leakage occurs in the internal pipeline, and timely overhaul is facilitated.
The solenoid valve includes solenoid valve A9, solenoid valve B10, solenoid valve C11, solenoid valve D12 and solenoid valve E13, solenoid valve D12 sets up in total working shaft 15 one side, solenoid valve E13 sets up in branch road working shaft 14 one side, solenoid valve C11 sets up in 16 one sides of fermentation vat intake pump, solenoid valve A9 and solenoid valve B10 set up respectively on secret return water pipeline 19 and its branch pipe, and 16 normal open of fermentation vat intake pump realizes the control to fermentation vat 3 temperature through solenoid valve C11, thermocouple 20 is to solenoid valve transmission signal, makes when fermentation vat 3 temperature is low self-closing solenoid valve C11, and water will no longer flow into fermentation vat 3, waits that fermentation of fermentation vat 3 through the microorganism makes the temperature rise then solenoid valve C11 is automatic to be opened, continues the circulation, opens total working shaft 15 and solar energy intake pump 17 during the day water supply mode, closes branch road working shaft 14, and night mode opens branch road working shaft 14, closes total working shaft 15 and solar energy intake pump 17, all the respective temperature of all the other valve control, unsatisfied the valve control then the valve self-closing when the settlement requirement.
And the fermentation tank 3 and the two heat storage water tanks are wrapped by heat insulation layers to prevent heat loss.
The working principle and the specific operation process of the day and night soil heating system with the fermentation tank as a complementary heat source are as follows:
one end of the branch water supply pump 14 is connected with the heat storage water tank B4, the other end of the branch water supply pump is connected with the underground water supply pipeline 18 to form a branch, and the underground water return pipeline 19 at the tail end of the heat storage water tank A2 forms a branch which is connected with the heat storage water tank B4 to form a loop. One end of the main water supply pump is connected with the heat storage water tank A2, the other end of the main water supply pump is connected with the underground water supply pipeline 18, and the underground water return pipeline 19 is finally connected with the heat storage water tank to form a loop. One end of the fermentation tank water inlet pump 16 is connected with the heat storage water tank B4, the other end of the fermentation tank water inlet pump is connected with the fermentation tank 3, and the fermentation tank 3 is connected with the heat storage water tank B4 through a pipeline to form a loop. One end of the solar water inlet pump is connected with the heat storage water tank A2, the other end of the solar water inlet pump is connected with the solar heat collector 1, and the solar heat collector 1 is connected with the heat storage water tank A2 through a pipeline to form a loop. The high-temperature container heat exchange device is arranged in the heat storage water tanks A and B, the inlet of the high-temperature container heat exchange device is connected with an air inlet pipe 7 for a fermentation tank, the outlet of the high-temperature container heat exchange device is connected with an indoor exhaust pipe 6 for the greenhouse, and a drain pipe 8 is arranged at the bottom of the high-temperature container heat exchange device. The electromagnetic valve A9 and the electromagnetic valve B10 are respectively arranged on the underground water return pipeline 19 and the branch pipe thereof, the electromagnetic valve C11 is arranged beside the fermentation pool water inlet pump 16, the electromagnetic valve D12 is arranged beside the water pump B15, and the electromagnetic valve E13 is arranged beside the branch water supply pump 14. A thermocouple 20 and a humidity probe 21 are arranged in the fermentation tank and used for monitoring the temperature and humidity inside the fermentation tank.
When sufficient sunshine in daytime, solar energy system works alone and can satisfy the condition of heating hot water, so the fermentation vat system is responsible for the heat-retaining in daytime, open total working shaft promptly, 16 and the solar energy working shaft of fermentation vat intake pump, open solenoid valve A9, solenoid valve C11 and solenoid valve D12, close solenoid valve B10 and solenoid valve E13 simultaneously, water in the heat storage water tank A2 gets into in solar collector 1 through the drive of solar energy working shaft, the water after the heating gets back to in the heat storage water tank A2, let in the underground pipeline through total working shaft with hot water, get back to in the heat storage water tank A2 through secret wet return 19 again, accomplish a heating cycle. Meanwhile, water in the heat storage water tank B4 enters the fermentation tank 3 to be heated through the driving of the fermentation tank water inlet pump 16, and the heated water returns to the heat storage water tank B4 to complete a heat storage cycle.
At night or when insufficient continuous illumination exists, the electromagnetic valve B10 and the electromagnetic valve E13 are opened, the electromagnetic valve A9 and the electromagnetic valve D12 are closed, water in the heat storage water tank B4 is driven by the branch water supply pump 14, enters the 18-underground water supply pipeline through the branch pipe, returns to the heat storage water tank B4 through the underground water return pipe 19, meanwhile, the electromagnetic valve C11 is opened, the water cooled after underground heating returns to the heat storage water tank B4, then enters the fermentation tank 3 to be reheated, finally returns to the heat storage water tank B, and then hot water is continuously supplied to the underground, so that a heating cycle is completed.
In daytime or at night, the temperature in the fermentation tank 3 is controlled through the electromagnetic valve C11, when the temperature in the fermentation tank is too low, the thermocouple 20 transmits a signal to the electromagnetic valve C11, the electromagnetic valve C11 is automatically closed to block water from entering, and the electromagnetic valve C11 is automatically opened when the temperature in the fermentation tank 3 rises, so that insufficient heat exchange caused by too low temperature in the fermentation tank is prevented, and the development of microorganisms in the fermentation tank is facilitated.
The high-temperature container heat exchange device 5 is obliquely arranged in the heat storage water tank A2 and the heat storage water tank B4, high-temperature carbon dioxide and water vapor discharged from the fermentation tank 3 enter the high-temperature heat exchange container device through the air inlet pipe to heat water in the water tank, the cooled carbon dioxide enters the greenhouse from the exhaust pipe to provide gas fertilizer, and condensed water is discharged from the water outlet through the inclined surface.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A day and night soil heating system taking a fermentation tank as a complementary heat source is characterized by comprising a solar heat collector (1), a heat storage water tank A (2), a fermentation tank (3), a heat storage water tank B (4), two high-temperature container heat exchange devices (5), a branch water supply pump (14), a main water supply pump (15), a fermentation tank water inlet pump (16), a solar water inlet pump (17), an underground water supply pipeline (18) and an underground water return pipeline (19), wherein one end of the branch water supply pump (14) is connected with the heat storage water tank B (4), the other end of the branch water supply pump is connected with the underground water supply pipeline (18), and the underground water return pipeline (19) at the tail end of the heat storage water tank A (2) forms a branch and is connected with the heat storage water tank B (4) to form a loop; one end of the main water supply pump (15) is connected with the heat storage water tank A (2), the other end of the main water supply pump is connected with the underground water supply pipeline (18), and the underground water return pipeline (19) is finally connected with the heat storage water tank A (2) to form a loop; one end of the fermentation tank water inlet pump (16) is connected with the heat storage water tank B (4), the other end of the fermentation tank water inlet pump is connected with the fermentation tank (3), and the fermentation tank (3) is connected with the heat storage water tank B (4) through a pipeline to form a loop; one end of the solar water inlet pump (17) is connected with the heat storage water tank A (2), the other end of the solar water inlet pump is connected with the solar heat collector (1), the solar heat collector (1) is connected with the heat storage water tank A (2) through an underground water return pipeline (19) to form a loop, and high-temperature container heat exchange devices (5) are respectively arranged in the heat storage water tank A (2) and the heat storage water tank B (4);
the high-temperature container heat exchange device (5) comprises an exhaust pipe (6), an air inlet pipe (7) and a drain pipe (8), an air inlet of the high-temperature container heat exchange device (5) is connected with the fermentation tank (3) through the air inlet pipe (7), an air outlet is connected with the greenhouse chamber through the exhaust pipe (6), high-temperature carbon dioxide gas and water vapor flowing out of the fermentation tank (3) exchange heat through the inside of the container, carbon dioxide gas fertilizer is discharged into the greenhouse chamber, and the drain pipe (8) is arranged at the bottom of the high-temperature container heat exchange device (5) and is used for discharging condensed water in time;
the electromagnetic valve comprises an electromagnetic valve A (9), an electromagnetic valve B (10), an electromagnetic valve C (11), an electromagnetic valve D (12) and an electromagnetic valve E (13), the electromagnetic valve D (12) is arranged on one side of a main water supply pump (15), the electromagnetic valve E (13) is arranged on one side of a branch water supply pump (14), the electromagnetic valve C (11) is arranged on one side of a fermentation tank water inlet pump (16), the electromagnetic valve A (9) and the electromagnetic valve B (10) are respectively arranged on an underground water return pipeline (19) and a branch pipe thereof, the fermentation tank water inlet pump (16) is normally open, the temperature of the fermentation tank (3) is controlled through the electromagnetic valve C (11), a thermocouple (20) transmits signals to the electromagnetic valve, so that the electromagnetic valve C (11) is automatically closed when the temperature of the fermentation tank (3) is too low, water does not flow into the fermentation tank (3), the electromagnetic valve C (11) is automatically opened when the temperature of the fermentation tank (3) is raised through microbial fermentation, the circulation is continued, the main water inlet pump (15) and the solar energy pump (17) are opened, the branch water supply pump (14) is closed, the electromagnetic valve A (12) and the electromagnetic valve E (13) and the electromagnetic valve E) are opened at night, closing a main water supply pump (15) and a solar water inlet pump (17), opening an electromagnetic valve B (10) and an electromagnetic valve E (13), closing an electromagnetic valve A (9) and an electromagnetic valve D (12), controlling the water temperature of each pipe section by the rest valves, and automatically closing the valves when the water temperature does not meet the set requirement.
2. The day and night soil heating system with the fermentation tank as a complementary heat source according to claim 1, wherein a thermocouple (20) and a humidity probe (21) are arranged on the fermentation tank (3), the thermocouple (20) in the fermentation tank (3) is used for monitoring temperature change in the fermentation tank (3), and the thermocouple (20) transmits a signal to the electromagnetic valve so as to control the opening and closing of the electromagnetic valve and realize self-adaptive control of heat extraction from the fermentation tank; the humidity probe (21) is used for monitoring the change of the humidity in the fermentation tank (3), so that whether water leakage occurs in the internal pipeline is judged, and the internal pipeline is convenient to overhaul in time.
3. A day and night soil heating system using a fermentation tank as a complementary heat source according to claim 1, wherein the fermentation tank (3) and the two heat storage water tanks are both wrapped with heat insulation layers to prevent heat loss.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006202086A1 (en) * | 2005-05-17 | 2006-12-07 | John Edward Norwood | Method and apparatus for enhancing plant growth in a greenhouse (or other controlled environment) |
| CA2588540C (en) * | 2006-10-02 | 2011-08-16 | Jose Lourenco | Method to condense and recover carbon dioxide (co2) from co2 containing gas streams |
| CN201748521U (en) * | 2010-07-30 | 2011-02-16 | 天津城市建设学院 | Solar energy/biogas combined heating system |
| CN102318511A (en) * | 2011-07-19 | 2012-01-18 | 重庆理工大学 | Method for applying carbon dioxide and rising temperature in greenhouse |
| CN203719148U (en) * | 2013-12-19 | 2014-07-16 | 湖南湖大瑞格能源科技有限公司 | Self-control dual-hot-water-tank ground source heat pump assisted solar energy hot water making system |
| CN204518683U (en) * | 2015-02-03 | 2015-08-05 | 长春市农业机械研究院 | A kind of greenhouse heating and carbon dioxide supplementary device |
| CN205279415U (en) * | 2016-01-07 | 2016-06-01 | 王喜顺 | Straw fermentation energy storage jar |
| CN205491944U (en) * | 2016-03-16 | 2016-08-24 | 天津城建大学 | Warmhouse booth with combined type heating system |
| CN108029403B (en) * | 2018-01-10 | 2023-07-07 | 河北工业大学 | Self-temperature-control solar greenhouse system based on phase-change heat storage technology |
| CN208472103U (en) * | 2018-05-08 | 2019-02-05 | 塔里木大学 | Solar photovoltaic phase-change heat-storage constant temperature system applied to biogas reaction unit |
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