CN111727888A - Indoor environment control unit for cultivation and planting - Google Patents

Indoor environment control unit for cultivation and planting Download PDF

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Publication number
CN111727888A
CN111727888A CN202010734039.1A CN202010734039A CN111727888A CN 111727888 A CN111727888 A CN 111727888A CN 202010734039 A CN202010734039 A CN 202010734039A CN 111727888 A CN111727888 A CN 111727888A
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CN
China
Prior art keywords
air
port
heat exchanger
fresh air
dirty
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Pending
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CN202010734039.1A
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Chinese (zh)
Inventor
刘涛
刘波
王明
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Weifang Shuangyi Environmental Protection Equipment Co ltd
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Weifang Shuangyi Environmental Protection Equipment Co ltd
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Priority to CN202010734039.1A priority Critical patent/CN111727888A/en
Publication of CN111727888A publication Critical patent/CN111727888A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
    • A01K1/0076—Arrangement of heaters or heat exchangers
    • 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
    • A01G9/246—Air-conditioning systems
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
    • A01K1/0082—Water misting or cooling systems
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

Abstract

The invention provides a special indoor environment control unit for cultivation and planting, which comprises a refrigerating and heating system and a fresh air system, wherein the refrigerating and heating system and the fresh air system are arranged in a unit box body. The invention provides an indoor environment control unit for cultivation and planting, which not only has the functions of heating and cooling and wide adjustment, but also recovers heat or cold during fresh air exchange, achieves the purposes of energy conservation and consumption reduction, realizes indoor carbon dioxide concentration control, ammonia concentration control and temperature control, and provides a comfortable environment for cultivation and planting in greenhouses.

Description

Indoor environment control unit for cultivation and planting
Technical Field
The invention relates to the technical field of indoor environment control devices, in particular to an indoor environment control unit for cultivation and planting.
Background
At present, cultivation and planting are mostly carried out in greenhouses and cultivation houses, and a proper growth environment is needed in the growth process of animals and plants. The method comprises the following steps: heating, refrigerating and discharging the gases which are unfavorable for growth, such as carbon dioxide, ammonia gas and the like generated in the growth process of indoor animals and plants, to the outdoor so as to exchange fresh air.
The traditional cultivation and planting heating mostly adopts a gas-fired boiler, a coal-fired boiler and an electric heating hot blast stove. The cooling mostly adopts a fan water curtain to cool, and fresh air is exchanged by adopting a small window, a ventilating pipeline and a ventilating fan to ventilate. The defects and deficiencies of more technologies exist in traditional heating, cooling and fresh air exchange, such as: 1. heating: the coal-fired boiler has the problem of environmental pollution, and the natural gas boiler and the electric heating hot blast stove have high operating cost and cannot be cooled; 2. cooling: the fan water curtain is adopted, so that the problem of humidity increase of the growing environment exists, the temperature can be reduced only by depending on the temperature of water, the temperature can be reduced to about 28 ℃, and the temperature required by plant growth is difficult to achieve; 3. fresh air exchange: the existing ventilation small window, ventilation pipeline and the like have the problem of heat or cold loss after being opened, and have the defect of increased energy consumption.
In conclusion, the greenhouse indoor for cultivation and planting needs to provide proper temperature, carbon dioxide concentration, ammonia concentration and the like, but the existing air conditioning unit only has the temperature adjusting function and is narrow in adjusting range, cannot realize simultaneous control of carbon dioxide concentration, ammonia concentration and humidity, and cannot meet the requirements of farmers. Therefore, a special unit for controlling indoor environment for cultivation and planting is needed.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide an indoor environment control unit for cultivation and planting, which not only has wide adjustment of heating and cooling, but also recovers heat or cold during fresh air exchange, thereby achieving the purpose of energy saving and consumption reduction, achieving indoor carbon dioxide concentration control, ammonia concentration control and temperature control, and providing a comfortable environment for the cultivation and planting in a greenhouse.
In order to achieve the purpose, the invention provides an indoor environment control unit for cultivation and planting, which comprises a refrigerating and heating system and a fresh air system, wherein the refrigerating and heating system and the fresh air system are arranged in a unit box body.
Preferably, the fresh air system comprises a centrifugal blower, a fresh air inlet, an air outlet and an air return inlet;
the centrifugal blower is arranged in the unit box body and located at the upper position, an air outlet is formed in the top wall of the unit box body and connected with the air outlet of the centrifugal blower, and the air return opening is formed in the side wall of the unit box body.
Further, the refrigerating and heating system comprises a compressor, a fin heat exchanger, a heat source heat exchanger, a four-way valve, a throttling device and a gas-liquid separator;
the refrigerating and heating system is arranged in the unit box body, wherein the compressor is positioned at the lower position of the unit box body, the air outlet end of the compressor is connected with a first port of a four-way valve, a second port of the four-way valve is connected with a fin heat exchanger, a third port of the four-way valve is connected with a heat source heat exchanger, and a fourth port of the four-way valve is connected with an inlet of a gas-liquid separator; the outlet of the gas-liquid separator is communicated with the gas return end of the compressor, the fin heat exchanger and the heat source heat exchanger are communicated through a throttling device, and the throttling device is used for throttling and depressurizing refrigerant in the refrigerating and heating system.
The system further comprises an air waste heat recovery system, wherein the air waste heat recovery system comprises a high-efficiency air heat exchanger, a sewage discharge air inlet, a sewage discharge fan and a sewage air inlet;
the efficient air heat exchanger is arranged in the unit box body and is positioned at the lower position, the sewage discharge fan is arranged in the unit box body and is positioned at the lower position, a sewage discharge air port is arranged on the side wall of the unit box body and is positioned at the lower position, and the sewage discharge air port is communicated with the sewage discharge fan; and a dirty air inlet is formed in the other side wall of the unit box body and positioned at the lower position.
The control system is arranged on the outer wall of the box body of the unit box body and comprises a PLC (programmable logic controller), an air port electric valve and a sensor;
the PLC is connected with a power supply and is electrically connected with the air port electric valve and the sensor. The sensor is used for detecting an indoor environment; the air inlet electric valves are three and respectively comprise an air return inlet electric valve, a dirty air inlet electric valve and a fresh air inlet electric valve;
the electric valve of the air return inlet correspondingly controls the opening and closing of the air return inlet;
the electric valve of the dirty air inlet correspondingly controls the opening and closing of the dirty air inlet;
the electric valve of the fresh air inlet correspondingly controls the switch of the fresh air inlet.
Further, when the heating mode is started when the indoor temperature is too low, the compressor is started, the heat from the heat source heat exchanger is compressed, and the heat is condensed in the fin heat exchanger through Freon from the four-way valve to the fin heat exchanger. The heat is directly sent to the indoor air return port through the air outlet by the centrifugal blower through the pipeline for indoor connection and reciprocating circulation, the proper temperature requirement is met, and the throttling device plays the roles of throttling and reducing the pressure.
Furthermore, when the indoor temperature is too high, the refrigeration mode is started, the compressor is started, and the heat from the indoor space is compressed and taken away by the medium of the heat source heat exchanger through the Freon and the heat from the four-way valve to the heat source heat exchanger; the fin heat exchanger is an evaporator at the moment, the centrifugal blower is used for indoor cold energy dredging through the air outlet, and the air return inlet is connected with the indoor for reciprocating circulation through a pipeline so as to meet the appropriate temperature requirement.
Furthermore, a fresh air exchange mode can be started while the heating mode is used; the PLC controls an electric valve of a return air inlet on the return air inlet to close the return air inlet, a fresh air inlet is opened under the control of an electric valve of the fresh air inlet, and an electric valve of a dirty air inlet controls an open of a dirty air inlet; fresh air passes through a fresh air port, is heated by a fin heat exchanger and enters the room, so that the indoor temperature is not reduced; dirty wind enters the high-efficiency wind heat exchanger through the dirty wind inlet, dirty wind heat heats fresh air and returns to the room, and dirty wind is discharged by the sewage discharge fan through the sewage discharge wind inlet.
Furthermore, a fresh air exchange mode can be started while the refrigeration mode is used; an electric valve of an air return port on the air return port controlled by the PLC closes the air return port, a fresh air port is opened under the control of an electric valve of the fresh air port, and an electric valve of a dirty air inlet controls the opening of a dirty air inlet; fresh air enters the room through a fresh air port, is cooled through a fin heat exchanger and then enters the room, so that the indoor temperature is not increased; dirty wind enters the high-efficiency wind heat exchanger through the dirty wind inlet, dirty wind heat is used for refrigerating fresh wind and returns to the room, and dirty wind is discharged by the sewage discharge fan through the sewage discharge wind inlet.
Further, when no heating and cooling requirements exist, a ventilation mode is started, an electric valve of an air return inlet on an air return inlet controlled by a PLC closes the air return inlet, a fresh air inlet is opened under the control of an electric valve of the fresh air inlet, and an electric valve of a dirty air inlet controls the opening of a dirty air inlet; fresh air enters the room through a fresh air port, dirty air enters the high-efficiency air heat exchanger through a dirty air inlet, dirty air heat is used for refrigerating the fresh air and returns to the room, and dirty air is discharged by a sewage discharge fan through a sewage discharge air port.
The invention provides a special indoor environment control unit for cultivation and planting, which comprises a refrigerating and heating system and a fresh air system, wherein the refrigerating and heating system and the fresh air system are arranged in a unit box body. The invention provides an indoor environment control unit for cultivation and planting, which not only has the functions of heating and cooling and wide adjustment, but also recovers heat or cold during fresh air exchange, achieves the purposes of energy conservation and consumption reduction, realizes indoor carbon dioxide concentration control, ammonia concentration control and temperature control, and provides a comfortable environment for cultivation and planting in greenhouses.
Drawings
FIG. 1 is a front view of an indoor environment control unit for cultivation and planting according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a left side view of the indoor environment control unit for cultivation and planting according to the present invention;
1-compressor, 2-fin heat exchanger, 3-heat source heat exchanger, 4-four-way valve, 5-throttling device, 6-vapor-liquid separator, 7-PLC controller, 8-air inlet electric valve, 8-1-air return electric valve, 8-2-dirty air inlet electric valve, 8-3-fresh air inlet electric valve, 9-sensor, 10-centrifugal blower, 11-fresh air inlet, 12-high efficiency air heat exchanger, 13-sewage outlet, 14-sewage blower, 15-air outlet, 16-air return, 17-dirty air inlet, 18-unit box, 19-electrical control cabinet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1 indoor environment control unit for cultivation and planting
Referring to fig. 1 to 4, the invention provides an indoor environment control unit for cultivation and planting, which comprises a refrigeration and heating system, a fresh air system, a control system and an air waste heat recovery system. Each of the above systems is disposed within the unit housing 18.
The refrigerating and heating system comprises a compressor 1, a fin heat exchanger 2, a heat source heat exchanger 3, a four-way valve 4, a throttling device 5 and a gas-liquid separator 6.
The refrigerating and heating system is arranged in the unit box 18, wherein the compressor 1 is positioned at the lower position of the unit box 18, the air outlet end of the compressor 1 is connected with a first port of a four-way valve 4, a second port of the four-way valve 4 is connected with the fin heat exchanger 2, a third port of the four-way valve 4 is connected with a heat source heat exchanger 3, and a fourth port of the four-way valve 4 is connected with an inlet of a gas-liquid separator 6; the outlet of the gas-liquid separator 6 is communicated with the gas return end of the compressor 1, the fin heat exchanger 2 is communicated with the heat source heat exchanger 3 through a throttling device 5, and the throttling device 5 is used for throttling and depressurizing the refrigerant of the refrigerating and heating system.
The control system is arranged on the outer wall of the box body of the unit box body 18 and comprises a PLC (programmable logic controller) 7, an air port electric valve 8 and a sensor 9.
The PLC controller 7 is connected with a power supply, and the PLC controller 7 is electrically connected with an air port electric valve 8 and a sensor 9. The sensor 9 is used to detect the indoor environment. The number of the air inlet electric valves 8 is three, and the air inlet electric valves 8 respectively comprise an air return inlet electric valve 8-1, a dirty air inlet electric valve 8-2 and a fresh air inlet electric valve 8-3.
The fresh air system comprises a centrifugal blower 10, a fresh air inlet 11, an air outlet 15 and an air return inlet 16.
The centrifugal blower 10 is arranged in the unit box 18 and located at an upper position, an air outlet 15 is arranged on the top wall of the unit box 18, the air outlet 15 is connected with the air outlet of the centrifugal blower 10, and the air return opening 16 is arranged on the side wall of the unit box 18.
The air waste heat recovery system comprises a high-efficiency air heat exchanger 12, a sewage discharge air inlet 13, a sewage discharge fan 14 and a sewage air inlet 17.
The high-efficiency air heat exchanger 12 is arranged inside the unit box body 18 and located at a lower position, the sewage discharge fan 14 is arranged inside the unit box body 18 and located at the lower position, a sewage discharge air port 13 is arranged on the side wall of the unit box body 18 and located at the lower position, and the sewage discharge air port 13 is communicated with the sewage discharge fan 14; and a dirty air inlet 17 is arranged on the other side wall of the unit box 18 and at the lower position.
The electric valve 8-1 of the air return inlet correspondingly controls the opening and closing of the air return inlet 16;
the electric valve 8-2 of the dirty air inlet correspondingly controls the opening and closing of the dirty air inlet 17;
the electric valve 8-3 of the fresh air port correspondingly controls the opening and closing of the fresh air port 11.
The composition of the system is as follows 6 modes:
heating mode:
when the indoor temperature is too low, the heating mode is started, the compressor 1 is started, heat from the heat source heat exchanger 3 is compressed, and the heat is condensed in the fin heat exchanger 2 through Freon and the fin heat exchanger 2 through the four-way valve 4. Heat is directly conducted to an indoor air return port 16 through an air outlet 15 by a centrifugal blower 10 and is connected with the indoor for reciprocating circulation through a pipeline, the appropriate temperature requirement is met, and the throttling device 5 plays a role in throttling and reducing pressure.
A refrigeration mode:
when the indoor temperature is too high, the refrigeration mode is started, the compressor 1 is started, and the heat in the room is compressed and is taken away by the medium of the heat source exchanger 3, such as water, through Freon and the heat from the heat source exchanger 3 through the four-way valve 4. The finned heat exchanger 2 is an evaporator at this time, and the centrifugal blower 10 is used for indoor cold energy dredging through the air outlet 15. The air return inlet 16 is connected with the indoor through a pipeline for reciprocating circulation to meet the requirement of proper temperature, and the throttling device 5 plays the roles of throttling and reducing pressure.
Heating and fresh air changing mode:
in the heating mode, the PLC controls the air return port electric valve 8-1 on the air return port 16 to close the air return port 16, the fresh air port 11 is opened under the control of the fresh air port electric valve 8-3, and the dirty air inlet electric valve 8-2 controls the dirty air inlet 17 to be opened. Fresh air passes through the fresh air port 11, is heated by the fin heat exchanger 2 and enters the room, so that the indoor temperature is not reduced; dirty air enters the high-efficiency air heat exchanger 12 through the dirty air inlet 17, the dirty air heat heats the fresh air and returns to the indoor, and the dirty air is discharged by the sewage discharge fan 14 through the sewage discharge air inlet 13. The purpose is for giving indoor new trend of trading, and heat recovery is indoor, reaches energy saving and consumption reduction's purpose.
Refrigeration + fresh air change mode:
in the refrigeration mode, an air return port electric valve 8-1 on an air return port 16 controlled by the PLC closes the air return port 16, a fresh air port 11 is opened under the control of a fresh air port electric valve 8-3, and a dirty air inlet electric valve 8-2 controls a dirty air inlet 17 to be opened. Fresh air passes through the fresh air port 11, is cooled by the fin heat exchanger 2 and enters the room, so that the indoor temperature is not increased; dirty air enters the high-efficiency air heat exchanger 12 through a dirty air inlet 17, dirty air heat is used for refrigerating fresh air and returns to the indoor, and dirty air is discharged by the sewage discharge fan 14 through the sewage discharge air inlet 13. The purpose is for giving indoor new trend of trading, and cold volume is retrieved to indoor, reaches energy saving and consumption reduction's purpose.
And (3) ventilation mode:
when the heating and cooling requirements do not exist, the ventilation mode is started, the air return port electric valve 8-1 on the air return port 16 controlled by the PLC closes the air return port 16, the fresh air port 11 is opened under the control of the fresh air port electric valve 8-3, and the dirty air inlet electric valve 8-2 controls the dirty air inlet 17 to be opened. Fresh air enters the room through a fresh air inlet 11, dirty air enters the high-efficiency air heat exchanger 12 through a dirty air inlet 17, dirty air heat is used for refrigerating the fresh air and returns to the room, and the dirty air is discharged by a sewage discharge fan 14 through a sewage discharge air inlet 13. The purpose is to change new wind for the room, and the cold and heat volume is retrieved to the room simultaneously, reaches energy saving and consumption reduction's purpose.
Custom mode
Is free combination of the above 5 modes.
The invention provides an indoor environment control unit for cultivation and planting, which comprises a refrigerating and heating system, an air circulating system, a fresh air system, an air waste heat recovery system and a control system.
The refrigerating and heating system comprises a heat pump system and a radiator positioned at the tail end, and the heat pump system is connected with the radiator.
The air outlet 15 and the air return opening 16 constitute an air circulation system.
The control air return port 16, the dirty air inlet 17, the fresh air port 11 and the like form a fresh air system.
The air waste heat recovery system comprises a heat exchanger system which is positioned in the air box and used for exchanging heat of fresh air and waste air.
The control system comprises a PLC controller, and the PLC controller and the single chip microcomputer are in linkage control for heating and refrigerating and opening of the air valve.
An electrical control cabinet 19 is further arranged in the unit box body 18, and the electrical control cabinet 19 is electrically connected with a control system.
Embodiment 2 indoor environment control unit for cultivation and planting
Referring to fig. 1, the present invention provides an indoor environment control unit for cultivation and planting, which is different from the above embodiments in that: the fresh air port 11 may also be provided on the top wall of the unit case 18.
The invention provides a special indoor environment control unit for cultivation and planting, which comprises a refrigerating and heating system and a fresh air system, wherein the refrigerating and heating system and the fresh air system are arranged in a unit box body. The invention provides an indoor environment control unit for cultivation and planting, which not only has the functions of heating and cooling and wide adjustment, but also recovers heat or cold during fresh air exchange, achieves the purposes of energy conservation and consumption reduction, realizes indoor carbon dioxide concentration control, ammonia concentration control and temperature control, and provides a comfortable environment for cultivation and planting in greenhouses.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The indoor environment control unit for cultivation and planting is characterized by comprising a refrigerating and heating system and a fresh air system, wherein the refrigerating and heating system and the fresh air system are both arranged in a unit box body (18).
2. Indoor environment control unit for cultivation, planting according to claim 1, wherein the fresh air system comprises a centrifugal blower (10), a fresh air inlet (11), an air outlet (15) and an air return inlet (16);
the centrifugal blower (10) is arranged in the unit box body (18) and located at the upper position, an air outlet (15) is formed in the top wall of the unit box body (18), the air outlet (15) is connected with the air outlet of the centrifugal blower (10), and the air return opening (16) is formed in the side wall of the unit box body (18).
3. The indoor environment control unit for cultivation and planting according to claim 2, wherein the cooling and heating system comprises a compressor (1), a fin heat exchanger (2), a heat source heat exchanger (3), a four-way valve (4), a throttling device (5) and a gas-liquid separator (6);
the refrigerating and heating system is arranged in a unit box body (18), wherein a compressor (1) is positioned below the unit box body (18), the air outlet end of the compressor (1) is connected with a first port of a four-way valve (4), a second port of the four-way valve (4) is connected with a fin heat exchanger (2), a third port of the four-way valve (4) is connected with a heat source heat exchanger (3), and a fourth port of the four-way valve (4) is connected with an inlet of a gas-liquid separator (6); the outlet of the gas-liquid separator (6) is communicated with the gas return end of the compressor (1), the fin heat exchanger (2) and the heat source heat exchanger (3) are communicated through a throttling device (5), and the throttling device (5) is used for controlling throttling and pressure reduction of a refrigerant in the refrigerating and heating system.
4. The indoor environment control unit for cultivation and planting according to claim 3, further comprising an air waste heat recovery system, wherein the air waste heat recovery system comprises a high-efficiency air heat exchanger (12), a sewage air outlet (13), a sewage fan (14) and a sewage air inlet (17);
the high-efficiency air heat exchanger (12) is arranged in the unit box body (18) and is positioned at the lower position, the sewage discharge fan (14) is arranged in the unit box body (18) and is positioned at the lower position, a sewage discharge air port (13) is arranged on the side wall of the unit box body (18) and is positioned at the lower position, and the sewage discharge air port (13) is communicated with the sewage discharge fan (14); and a dirty air inlet (17) is formed in the other side wall of the unit box body (18) and is positioned at the lower position.
5. The indoor environment control unit for cultivation and planting according to claim 4, further comprising a control system, wherein the control system is arranged on the outer wall of the unit box body (18) and comprises a PLC (programmable logic controller) controller (7), an air port electric valve (8) and a sensor (9);
the PLC (7) is connected with a power supply, the PLC (7) is electrically connected with an air port electric valve (8) and a sensor (9), and the sensor (9) is used for detecting an indoor environment; the number of the air inlet electric valves (8) is three, and the air inlet electric valves respectively comprise an air return inlet electric valve (8-1), a dirty air inlet electric valve (8-2) and a fresh air inlet electric valve (8-3);
the air return opening electric valve (8-1) correspondingly controls the opening and closing of the air return opening (16);
the electric valve (8-2) of the dirty air inlet correspondingly controls the opening and closing of the dirty air inlet (17);
the electric valve (8-3) of the fresh air port correspondingly controls the opening and closing of the fresh air port (11).
6. The indoor environment control unit for cultivation and planting according to claim 3, wherein when the heating mode is started when the indoor temperature is too low, the compressor (1) is started to compress the heat from the heat source heat exchanger (3) and the heat is condensed in the fin heat exchanger (2) through Freon to the fin heat exchanger (2) through the four-way valve (4); heat is directly sent to an indoor air return opening (16) through an air outlet (15) by a centrifugal blower (10) and is connected with the indoor for reciprocating circulation by a pipeline, the proper temperature requirement is met, and the throttling device (5) plays a role in throttling and reducing pressure.
7. The indoor environment control unit for cultivation and planting according to claim 3, wherein when the indoor temperature is too high, the refrigeration mode is started, the compressor (1) is started, and the heat compressed from the indoor is taken away by the medium of the heat source heat exchanger (3) through Freon and the four-way valve (4) to the heat source heat exchanger (3); the fin heat exchanger (2) is an evaporator at the moment, the centrifugal blower (10) dredges cold energy indoors through the air outlet (15), and the air return inlet (16) is connected with the indoor through a pipeline for reciprocating circulation to meet the appropriate temperature requirement.
8. The indoor environment control unit for cultivation and planting according to claim 5, wherein a fresh air exchange mode can be started at the same time of the heating mode; the PLC controls an air return port electric valve (8-1) on an air return port (16) to close the air return port (16), a fresh air port (11) is opened under the control of a fresh air port electric valve (8-3), and a dirty air inlet electric valve (8-2) controls a dirty air inlet (17) to be opened; fresh air passes through a fresh air port (11), is heated by a finned heat exchanger (2) and then enters the room, so that the indoor temperature is not reduced; dirty air enters the high-efficiency air heat exchanger (12) through a dirty air inlet (17) and is heated by dirty air heat, the fresh air returns indoors, and the dirty air is discharged by the sewage discharge fan (14) through a sewage discharge air inlet (13).
9. The indoor environment control unit for cultivation and planting according to claim 5, wherein a fresh air exchange mode can be started at the same time as the refrigeration mode; an air return port electric valve (8-1) on an air return port (16) controlled by a PLC closes the air return port (16), a fresh air port (11) is opened under the control of a fresh air port electric valve (8-3), and a dirty air inlet electric valve (8-2) controls a dirty air inlet (17) to be opened; fresh air enters the room through a fresh air port (11), is cooled through a finned heat exchanger (2) and then enters the room, so that the indoor temperature is not increased; dirty air enters the high-efficiency air heat exchanger (12) through a dirty air inlet (17) and is refrigerated by dirty air heat, the fresh air returns to the room, and the dirty air is discharged by the sewage discharge fan (14) through a sewage discharge air inlet (13).
10. The indoor environment control unit for cultivation and planting according to claim 5, wherein when no heating and cooling requirements exist, the ventilation mode is started, an electric return air port valve (8-1) on the air return port (16) controlled by the PLC closes the air return port (16), a fresh air port (11) is opened under the control of an electric fresh air port valve (8-3), and an electric dirty air inlet valve (8-2) controls a dirty air inlet (17) to be opened; fresh air enters the room through a fresh air port (11), dirty air enters the high-efficiency air heat exchanger (12) through a dirty air inlet (17) and is refrigerated by dirty air heat, the fresh air returns to the room, and the dirty air is discharged by the sewage discharge fan (14) through a sewage discharge air port (13).
CN202010734039.1A 2020-07-27 2020-07-27 Indoor environment control unit for cultivation and planting Pending CN111727888A (en)

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Application Number Priority Date Filing Date Title
CN202010734039.1A CN111727888A (en) 2020-07-27 2020-07-27 Indoor environment control unit for cultivation and planting

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Application Number Priority Date Filing Date Title
CN202010734039.1A CN111727888A (en) 2020-07-27 2020-07-27 Indoor environment control unit for cultivation and planting

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CN111727888A true CN111727888A (en) 2020-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114651729A (en) * 2022-03-28 2022-06-24 延寿县润和养殖专业合作社 Air conditioning system and method in cultivation shed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114651729A (en) * 2022-03-28 2022-06-24 延寿县润和养殖专业合作社 Air conditioning system and method in cultivation shed
CN114651729B (en) * 2022-03-28 2023-05-30 延寿县润和养殖专业合作社 Air conditioning system and method in cultivation shed

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