CN211832189U - Crop cultivation constant temperature system - Google Patents
Crop cultivation constant temperature system Download PDFInfo
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- CN211832189U CN211832189U CN202020216051.9U CN202020216051U CN211832189U CN 211832189 U CN211832189 U CN 211832189U CN 202020216051 U CN202020216051 U CN 202020216051U CN 211832189 U CN211832189 U CN 211832189U
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Abstract
A crop cultivation constant temperature system comprises a cold water tank, a hot water tank and at least one indoor heat exchanger. The cold water tank and each indoor heat exchanger are connected through a pipeline and a cooling circulating pump to form a cooling loop. The hot water tank and each indoor heat exchanger are connected with a heat supply circulating pump through a pipeline to form a heat supply loop. The cold water tank is connected with an evaporator of the cold and hot unit for constant temperature, and the hot water tank is connected with a condenser in the cold and hot unit for constant temperature. The cold water tank and the hot water tank are both connected with the outdoor heat exchanger. And a humidity sensor, a carbon dioxide concentration sensor, a humidifier, an exhaust fan and a new fan. Humiture and carbon dioxide concentration sensor in the room detect the data steerable room in humidifier, exhaust fan, new fan, cold circulating pump and the opening and stopping of heat supply circulating pump, convenient operation is simple unmanned on duty, is applicable to various crops aquaculture environment.
Description
Technical Field
The utility model belongs to refrigeration equipment of heating, in particular to crop cultivation constant temperature system is the constant temperature demand that can satisfy crops (for example mushroom) during the room of breeding refrigerates, also can satisfy the constant temperature demand that the room of breeding mushroom during heats, also can satisfy the constant temperature system of the demand to different temperature, humidity and carbon dioxide concentration during the different growth of mushroom simultaneously.
Background
Along with the rapid development of Chinese economy, the living standard of people is increasingly improved, the requirements of people on materials and environment are increasingly strict, the demand on anti-season products is more and more, the requirement on the existing cultivation technology under the condition is not limited by seasons and regions, the agricultural cultivation is gradually developed from the traditional cultivation mode to the modern cultivation mode, the planting varieties of agricultural products are not limited by the difference influence of the seasons and the region environmental temperatures, and a constant temperature system is needed to meet the requirement, so that the cultivation room can be kept in an environment suitable for the growth of crops in winter and summer and in regions.
Crops such as mushrooms need different temperatures in different growth stages, the optimal temperature for growing hyphae in the early stage is about 18 to 20 ℃, and the temperature for growing fruiting bodies in the later stage is about 12 to 16 ℃, so that the hyphae in the later stage are warm and the fruiting bodies are cool. Hyphae can become old when the temperature is too high, sporophores are easy to open, and generally do not grow any more below 4 ℃. Therefore, the temperature in the cultivation room needs to be controlled no matter in winter or summer, meanwhile, the mushroom needs moisture as the external plants during growth, a large amount of moisture is needed, and a large amount of moisture is needed during the growth stage of the fruit body, and most of the fruit body is composed of moisture. If the water content is insufficient, the growth of the fruit body is affected. The water content of the culture medium is generally about 60% by mass, and the air humidity is about 70%. The dry mushroom in the environment loses water, the environment humidity is too high, the air is not circulated, the mushroom needs enough oxygen for growing, the oxygen is generally absorbed, the carbon dioxide is released at certain time, the oxygen is changed, so the air of the culture room needs to be changed regularly, and the humidity and the carbon dioxide concentration in the room are ensured to be kept in the range suitable for the mushroom growing.
The existing process mostly adopts a boiler heating mode in winter to prevent the breeding room from failing to grow normally due to too low temperature, and adopts an air conditioning unit to prevent hyphae of the breeding room from aging due to too high temperature in summer, but the mode has the defects of inaccurate temperature regulation, energy waste, environmental pollution caused by coal-fired boiler heating, too high gas heating cost and the like, and the boiler also needs to be operated and attended by a furnace operator, so that the breeding cost is increased as a direct result.
Therefore adopt mushroom cultivation constant temperature system not only can guarantee that mushroom cultivation no longer receives the influence that the ambient temperature is different that season and regional difference caused, can also guarantee to breed in the room and all keep under the environment of the suitable temperature of mushroom growth throughout the year, humidity and oxygen, and a plurality of breed rooms can be controlled to same system, different breed rooms can guarantee that different fungus class can both guarantee the requirement of its humiture and carbon dioxide concentration that needs in the growth stage of difference, the running cost is low simultaneously, and the environmental protection, system is intelligent, need not artifical on duty, ordinary person just easily operates, need not extra manual work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a crops farming constant temperature system, it is high in order to overcome current technology energy consumption, the polluted environment, shortcoming such as labour cost height adopts crops farming constant temperature system, accomplishes crops farming room and carries out heat transfer through system and natural environment, through the constant temperature with cold and hot unit with low-grade energy conversion in with the environment for the energy of the available high-grade in crops farming room, can guarantee all keep in crops farming room the condition that the crop growth is suitable throughout the year.
The technical scheme is as follows:
a crop cultivation constant temperature system comprises a cold and hot unit for constant temperature, an outdoor heat exchanger, a cold water tank, a hot water tank and at least one indoor heat exchanger.
The technical key points are as follows:
the cold water tank and each indoor heat exchanger are connected through a pipeline and a cooling circulating pump to form a cooling loop.
The hot water tank and each indoor heat exchanger are connected with a heat supply circulating pump through a pipeline to form a heat supply loop.
The cold water tank and the evaporator in the constant temperature cold and hot unit are connected with a cold water circulating pump through a pipeline to form a cold water and constant temperature cold and hot unit cooling loop.
The hot water tank and the condenser in the constant temperature cold and hot unit are connected with a hot water circulating pump through a pipeline to form a hot water and constant temperature cold and hot unit heat supply loop.
The cold water tank is connected with the outdoor heat exchanger through a pipeline and a heat source circulating pump to form a cold water and outdoor heat exchanger heat absorption loop.
The hot water tank and the outdoor heat exchanger are connected with a heat dissipation circulating pump through pipelines to form a hot water and outdoor heat exchanger heat dissipation loop.
The cold water tank is provided with a cold water tank temperature sensor. The hot water tank is provided with a hot water tank temperature sensor. There is also an indoor temperature sensor.
The cold and hot unit cooling loop for cold water and constant temperature is provided with an extremely cold weather gas heat compensator and a low temperature protection temperature sensor.
And a humidity sensor, a carbon dioxide concentration sensor, a humidifier, an exhaust fan and a new fan.
This system sets up intelligent control system, the data accessible intelligent control system control crop culture room humidifier, exhaust fan and the new trend fan in the room that humiture and carbon dioxide concentration sensor detected guarantee that temperature, humidity and carbon dioxide concentration in the crop culture room are in the within range of requirement to when there are more than two crop culture rooms in the system, the temperature in the different crop culture rooms can be according to the different breed stage settlement of crops, and convenient operation is simple, is applicable to various crops (for example fungus class) aquaculture environment.
The advantages are that:
1. the system is simple to install, convenient to operate and wide in applicability.
2. The system has stable operation and accurate control, and can ensure that crops in different regions and different seasons can grow under the appropriate environmental conditions.
3. The same system can control a plurality of crop cultivation rooms, and the crops in different crop cultivation rooms can be set with different humiture and carbon dioxide concentration according to different growth stages.
4. Unattended operation: the temperature, the humidity and the carbon dioxide concentration are automatically regulated and controlled according to the set temperature, the humidity and the carbon dioxide concentration of the crop cultivation room, all protection of the system is perfect, and manual intervention operation is not needed during working.
5. The system has low noise and does not influence the normal work of other equipment during operation.
6. Adopt crops to breed constant temperature system, can guarantee that the crops are bred and all keep in the crops temperature that the room is suitable all the year round, the demand of humidity and oxygen, and a plurality of crops are bred and can be controlled to same system, different crops (for example, different fungus class) can be guaranteed in different growth stages to different crops (for example) and can both keep the requirement of its humiture and carbon dioxide concentration that needs, the running cost is low simultaneously, and the environmental protection, the system is intelligent, need not artifical on duty, the staff also can easily operate, do not need extra manual work. The annual average energy efficiency EER under the refrigeration working condition is not lower than 4.15, and the annual energy efficiency under the heating working condition is not lower than 6.22.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention (corresponding to three crop cultivation rooms).
Fig. 2 is a schematic diagram of the system of the present invention (corresponding to a crop cultivation room).
Fig. 3 is a partially enlarged left side view of fig. 2.
The constant temperature cooling and heating unit 1, the outdoor heat exchanger 2, the cold water tank 3, the hot water tank 4, the crop cultivation room 5, the indoor heat exchanger 6, the humidifier 7, the temperature and humidity and carbon dioxide concentration sensor 8, the exhaust fan 9, the fresh air fan 10, the heat source circulating pump 11, the cold water circulating pump 12, the hot water circulating pump 13, the heat dissipation circulating pump 14, the cooling circulating pump 15, the heating circulating pump 16, the extreme cold weather gas heat compensator 17, the low temperature protection temperature sensor 18, the first detection temperature sensor 19, the over temperature protection temperature sensor 20, the second detection temperature sensor 21, the cold water tank temperature sensor 22, the hot water tank temperature sensor 23, the compressor 24, the condenser 25, the liquid reservoir 26, the expansion valve 27 and the evaporator 28.
Detailed Description
A crop cultivation constant temperature system comprises a cold and hot unit 1 for constant temperature (the prior art).
The water inlet of the evaporator 28 in the constant temperature cold and hot unit 1 is connected with the cold water tank 3 through a pipeline and a cold water circulating pump 12, the water inlet of the cold water circulating pump 12 is connected with the cold water tank 3, and the water outlet of the cold water circulating pump 12 is connected with the water inlet of the evaporator 28. The water outlet of the evaporator 28 in the constant temperature cold and hot unit 1 is connected with the cold water tank 3 through a pipeline. Form a cold water and constant temperature cold and hot unit cooling loop.
The water inlet of a condenser 25 in the constant-temperature cold and hot unit 1 is connected with the hot water tank 4 through a pipeline and a hot water circulating pump 13, the water inlet of the hot water circulating pump 13 is connected with the hot water tank 4, and the water outlet of the hot water circulating pump 13 is connected with the water inlet of the condenser 25. The water outlet of the condenser 25 in the constant temperature cold and hot unit 1 is connected with the hot water tank 4 through a pipeline. Form a heating loop of a cold and hot unit for hot water and constant temperature.
And a cold water inlet of the outdoor heat exchanger 2 is connected with the cold water tank 3 through a pipeline and a heat source circulating pump 11. A water inlet of the heat source circulating pump 11 is connected with the cold water tank 3, and a water outlet of the heat source circulating pump 11 is connected with a cold water inlet of the outdoor heat exchanger 2. And a cold water outlet of the outdoor heat exchanger 2 is connected with the cold water tank 3 through a pipeline. And a cold water and outdoor heat exchanger heat absorption loop is formed.
The hot water inlet of the outdoor heat exchanger 2 is connected with the hot water tank 4 through a pipeline and a heat dissipation circulating pump 14. A water inlet of the heat dissipation circulating pump 14 is connected with the hot water tank 4, and a water outlet of the heat dissipation circulating pump 14 is connected with a hot water inlet of the outdoor heat exchanger 2. The hot water outlet of the outdoor heat exchanger 2 is connected with the hot water tank 4 through a pipeline. And a hot water and outdoor heat exchanger heat dissipation loop is formed.
And when the temperature of the hot water tank 4 is higher than the set value, starting the heat dissipation circulating pump 14 and the fan motor of the outdoor heat exchanger 2. And when the temperature of the hot water tank 4 is lower than the set value, the hot water circulating pump 13 and the constant temperature cold and hot unit 1 are started. (the temperature is detected by a hot water tank temperature sensor 23 and controls the control system to start and stop the corresponding pump).
And when the temperature of the cold water tank 3 is higher than the set value, the cold water circulating pump 12 and the constant temperature cold and hot unit 1 are started. And starting the fan motor of the outdoor heat exchanger 2 when the temperature of the cold water tank 3 is lower than a set value. (the temperature is detected by a cold water tank temperature sensor 22 and controls the control system to start and stop the corresponding pump).
The indoor heat exchanger 6 can be a four-port heat exchanger and is arranged in the crop cultivation room 5.
The cold water tank 3 is connected with a cold water inlet of an indoor heat exchanger 6 in the crop cultivation room 5 through a pipeline and a cooling circulating pump 15. A water inlet of the cooling circulating pump 15 is connected with the cold water tank 3, and a water outlet of the cooling circulating pump 15 is connected with a cold water inlet of the indoor heat exchanger 6. And a cold water outlet of an indoor heat exchanger 6 in the crop cultivation room 5 is connected with the cold water tank 3 through a pipeline. Forming a cooling circuit.
The hot water tank 4 is connected with a hot water inlet of an indoor heat exchanger 6 in the crop cultivation room 5 through a pipeline and a heat supply circulating pump 16. A water inlet of the heat supply circulating pump 16 is connected with the hot water tank 4, and a water outlet of the heat supply circulating pump 16 is connected with a hot water inlet of the indoor heat exchanger 6. And a hot water outlet of an indoor heat exchanger 6 in the crop cultivation room 5 is connected with the hot water tank 4 through a pipeline. Forming a heating circuit.
A cooling loop is arranged between the cold water tank 3 and each indoor heat exchanger 6.
A heating circuit is arranged between the hot water tank 4 and each indoor heat exchanger 6.
As shown in fig. 1, there are three cooling circuits and three heating circuits for cooling or heating three indoor heat exchangers 6 in three crop cultivation rooms 5. A plurality of crop cultivation rooms 5 can be simultaneously configured in one system by one constant temperature cold and hot unit 1, one cold water tank 3 and one hot water tank 4.
Each crop cultivation room 5 can be set to different temperatures, humidity and carbon dioxide concentrations according to requirements through the control system.
An extreme cold weather gas-heat compensator 17 is arranged on a pipeline between the constant-temperature cold and hot water unit 1 and the cold water tank 3, the control system controls the start and stop of the extreme cold weather gas-heat compensator 17 through a set value of a low-temperature protection temperature sensor 18, and the extreme cold weather gas-heat compensator 17 is arranged at a water outlet of the cold water circulating pump 12. Namely, the low-temperature protection temperature sensor 18 and the extremely cold weather heat compensator 17 are arranged on the cold supply loop of the cold and hot unit for cold water and constant temperature.
A cryo-protective temperature sensor 18 is provided at the water outlet of the evaporator 28.
A humidifier 7 is also provided in the crop cultivation room 5 for humidification.
And a temperature, humidity and carbon dioxide concentration sensor 8 is arranged in the crop cultivation room 5 and used for detecting the temperature, the humidity and the carbon dioxide concentration.
And an exhaust fan 9 and a fresh air fan 10 are arranged in the crop cultivation room 5.
A humidifier 7, a temperature, humidity and carbon dioxide concentration sensor 8, an exhaust fan 9 and a fresh air fan 10 are required to be arranged in each crop cultivation room 5.
When the temperature and humidity and carbon dioxide concentration sensors 8 detect that the temperature in the crop cultivation room 5 is higher than a set value, the cooling circulating pump 15 is started, so that the cold water in the cold water tank 3 is subjected to circulating heat exchange with the air in the crop cultivation room 5 through the indoor heat exchanger 6 in the pipeline, and the temperature in the cultivation room 5 is ensured to be within the temperature required range.
When the temperature and humidity and carbon dioxide concentration sensors 8 detect that the temperature in the crop cultivation room 5 is lower than a set value, the heat supply circulating pump 16 is started, so that hot water in the hot water tank 4 and air in the crop cultivation room 5 perform circulating heat exchange in a pipeline through the indoor heat exchanger 6, and the temperature in the crop cultivation room 5 is ensured to be within a temperature required range.
The temperature and humidity and carbon dioxide concentration sensor 8 respectively controls the starting and stopping of the exhaust fan 9, the fresh air fan 10 and the humidifier 7 in the three crop cultivation rooms 5 according to the detected humidity and carbon dioxide concentration through the control system.
And when the temperature and humidity and carbon dioxide concentration sensor 8 detects that the humidity or the carbon dioxide concentration in the crop cultivation room 5 is higher than a set value, the exhaust fan 9 and the fresh air fan 10 are started. When the humidity in the room is detected to be lower than the set value, the humidifier 7 is started.
The temperature and humidity and carbon dioxide concentration sensor 8 is a sensor including an indoor temperature sensor, a humidity sensor and a carbon dioxide concentration sensor.
This system sets up intelligent control system, the humiture in the crops culture room 5 and the data accessible intelligent control system control humidifier 7 in the crops culture room 5 that carbon dioxide concentration sensor 8 detected, exhaust fan 9 and new trend fan 10 guarantee that humidity and carbon dioxide concentration in crops culture room 5 are in the within range of requirement, and when there are more than two crops culture room 5 in the system, the temperature in the different rooms, humidity and carbon dioxide concentration can be according to the different breed stage settlement of crops, and convenient operation is simple, be applicable to various fungus class aquaculture environment, crops culture room 5 can be for the mushroom culture room.
Each crop cultivation room 5 can be set to different temperatures, humidity and carbon dioxide concentrations according to requirements through the control system.
When the temperature of the crop cultivation room 5 is lower than (or higher than) a set value, the temperature, humidity and carbon dioxide sensor 8 controls the start and stop of the heat supply circulating pump 16 (or the cold supply circulating pump 15) through the control system.
The constant temperature cooling/heating unit 1 is a known technology, and includes a compressor 24, a condenser 25, an accumulator 26, an expansion valve 27, and an evaporator 28.
The discharge of the compressor 24 is connected by a line to the refrigerant inlet of a condenser 25.
The suction port of the compressor 24 is connected by a line to the refrigerant outlet of the evaporator 28.
The refrigerant outlet of the condenser 25 is connected to the inlet of the accumulator 26 through a pipe.
An outlet of the accumulator 26 is connected to a refrigerant inlet of an evaporator 28 via an expansion valve 27.
The constant temperature cold and hot unit 1, the cold water tank 3 and the hot water tank 4 are all arranged in the control room.
And maintenance valves (manual operation) are arranged at the pipe joints of the cold water tank 3 and the hot water tank 4.
The first detection temperature sensor 19 is arranged at the water inlet of the evaporator 28, the overtemperature protection temperature sensor 20 is arranged at the water outlet of the condenser 25, and the second detection temperature sensor 21 is arranged at the water inlet of the condenser 25 and used for detecting the working temperature of the constant-temperature cold and hot unit 1.
Claims (3)
1. The utility model provides a crops farming constant temperature system, has constant temperature with cold and hot unit (1), outdoor heat exchanger (2), cold water storage cistern (3), hot-water tank (4) and at least one indoor heat exchanger (6), its characterized in that:
the cold water tank (3) is connected with each indoor heat exchanger (6) through a pipeline and a cooling circulating pump (15) to form a cooling loop;
the hot water tank (4) is connected with each indoor heat exchanger (6) through a pipeline and a heat supply circulating pump (16) to form a heat supply loop;
the cold water tank (3) and an evaporator (28) in the constant-temperature cold and hot unit (1) are connected with a cold water circulating pump (12) through a pipeline to form a cold water and constant-temperature cold and hot unit cooling loop;
the hot water tank (4) and a condenser (25) in the constant-temperature cold and hot unit (1) are connected with a hot water circulating pump (13) through a pipeline to form a hot water and constant-temperature cold and hot unit heat supply loop;
the cold water tank (3) is connected with the outdoor heat exchanger (2) through a pipeline and a heat source circulating pump (11) to form a cold water and outdoor heat exchanger heat absorption loop;
the hot water tank (4) is connected with the outdoor heat exchanger (2) through a pipeline and a heat dissipation circulating pump (14) to form a hot water and outdoor heat exchanger heat dissipation loop;
the cold water tank (3) is provided with a cold water tank temperature sensor (22); the hot water tank (4) is provided with a hot water tank temperature sensor (23); there is also an indoor temperature sensor.
2. The crop cultivation thermostat system of claim 1, wherein:
a cooling loop of the cold and heat unit for cold water and constant temperature is provided with an extremely cold weather heat compensator (17) and a low-temperature protection temperature sensor (18).
3. The crop cultivation thermostat system of claim 1, wherein:
a humidity sensor and a carbon dioxide concentration sensor, a humidifier (7), an exhaust fan (9) and a fresh air fan (10).
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| CN202020216051.9U CN211832189U (en) | 2020-02-27 | 2020-02-27 | Crop cultivation constant temperature system |
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| CN202020216051.9U CN211832189U (en) | 2020-02-27 | 2020-02-27 | Crop cultivation constant temperature system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279104A (en) * | 2021-11-15 | 2022-04-05 | 珠海格力电器股份有限公司 | Cold and heat source unit for breeding house and breeding house environment control system |
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2020
- 2020-02-27 CN CN202020216051.9U patent/CN211832189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279104A (en) * | 2021-11-15 | 2022-04-05 | 珠海格力电器股份有限公司 | Cold and heat source unit for breeding house and breeding house environment control system |
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