CN211241065U

CN211241065U - Cold water circulation cooling device for modern facility greenhouse

Info

Publication number: CN211241065U
Application number: CN201921859672.2U
Authority: CN
Inventors: 黄德振; 安俊龙; 崔鹤; 何声团; 吕延超
Original assignee: Hainan Modern Facilities Agriculture Research Institute Co ltd
Current assignee: Hainan Modern Facilities Agriculture Research Institute Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-14
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a cold water circulation cooling device for a modern facility greenhouse, which comprises a water supply device, a reservoir and a plurality of heat exchangers arranged at intervals; the water supply equipment comprises a cold water source, a delivery pipe and a water pump, wherein the cold water source is connected with the reservoir through the water pump and the delivery pipe; a water outlet pipe and a return pipe are respectively arranged on the reservoir, a cold water pump is arranged on the water outlet pipe, and a return pump is arranged on the return pipe; the heat exchanger comprises a cold water pipe and a hot water pipe, the cold water pipe is communicated with the hot water pipe and forms a U-shaped structure, and a plurality of shunt pipes which are arranged at intervals are arranged between the cold water pipe and the hot water pipe; the cold water pipe of the heat exchanger is communicated with the water outlet pipe, and the hot water pipe of the heat exchanger is communicated with the return pipe. The utility model discloses simple structure, convenient to use, the cost of manufacture is low, effectively reduces the inside temperature of big-arch shelter, provides suitable temperature condition for vegetation, helps improving the output and the quality of plant, has improved the economic benefits of big-arch shelter.

Description

Cold water circulation cooling device for modern facility greenhouse

Technical Field

The utility model belongs to a farming equipment field relates to a heat sink, specifically is a modern facility big-arch shelter cold water circulation heat sink.

Background

With the rapid development of agricultural science and technology, modern greenhouse facilities are widely used because the natural light-temperature conditions can be changed by adopting artificial technical means, and environmental factors for optimizing plant growth are created. The modern facility greenhouse is used as an important component of facility agriculture, and the coverage area of the modern large-scale greenhouse mainly adopting a steel frame structure is 5000-10000m²The internal environment is basically not influenced by natural factors, can be automatically regulated and controlled, and can be used for all-weather horticultural crop production.

The temperature is an environmental factor influencing the growth of plants, and the growth of the plants can gradually become slow or stop and even wither due to overhigh temperature in the greenhouse. The temperature change in the greenhouse can cause the change of other factors (such as humidity, precipitation, wind and the like) at the same time, thereby directly influencing the growth and development of plants and the yield and quality of crops. Therefore, a growing environment with proper temperature is created for the plants in the greenhouse, the normal growth of the plants is effectively ensured, and the yield and the quality of the plants are improved.

In tropical areas in south China, particularly in Hainan province, the summer weather is hot, and modern facility greenhouses are large in coverage area, a closed cultivation mode is adopted, the temperature in the greenhouses is extremely easy to rise and is higher than the temperature of the external environment, and even if corresponding heat exchange systems (heat exchange fans) are arranged in the greenhouses, the ground surface air circulation is not smooth due to the fact that the heat exchange fans of the greenhouses are arranged, the ground of the greenhouses are hardened (such as cement floors), the light reflection and heat reflection effects are strong, the hardened ground does not absorb heat, the temperature of the ground in the greenhouses is often higher than the temperature of the upper portions of the greenhouses by 2-3 ℃, and therefore the uniformity of the temperature in the greenhouses is affected, and.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modern facility big-arch shelter cold water circulation heat sink to prior art not enough, through the cooperation design of water supply equipment, cistern and heat exchanger, effectively reduce the temperature of big-arch shelter earth's surface, improve the homogeneity of temperature in the canopy, for vegetation provides suitable environment, help improving the output and the quality of plant.

The utility model discloses the technical scheme who adopts:

a cold water circulation cooling device for a modern facility greenhouse comprises water supply equipment, a reservoir and a plurality of heat exchangers which are arranged at intervals; the water supply equipment comprises a cold water source, a delivery pipe and a water pump, wherein the cold water source is connected with the reservoir through the water pump and the delivery pipe, and the water pump pumps cold water from the cold water source out and delivers the cold water into the reservoir through the delivery pipe; the water storage tank is respectively provided with a water outlet pipe and a return pipe, the water outlet pipe is provided with a cold water pump, the cold water pump pumps cold water in the water storage tank out through the water outlet pipe, the return pipe is provided with a return pump, and the return pump pumps hot water distributed in the return pipe back to the water storage tank; the heat exchanger comprises a cold water pipe and a hot water pipe, the cold water pipe is communicated with the hot water pipe and forms a U-shaped structure, a plurality of shunt pipes which are arranged at intervals are arranged between the cold water pipe and the hot water pipe, the heat exchange area of the heat exchanger is increased, when cold water of a cold water source flows through the heat exchanger, the heat exchanger absorbs heat of the surrounding environment, and the temperature of the surrounding environment of the heat exchanger is effectively reduced; the cold water pipe and the outlet pipe intercommunication of heat exchanger, the hot-water line and the back flow intercommunication of heat exchanger, cold water is carried to the cold water pipe of heat exchanger from the outlet pipe, shunt tubes and the hot-water line that flows to the heat exchanger again, at this moment, cold water becomes hot water after the heat absorption, finally, this hot water flows to the back flow from the hot-water line, carry to the cistern by the back flow again, the hot water of cistern carries out the heat exchange effect back with the outside air, can continue the circulation and carry to the heat exchanger, effectively cool down the environment around the heat exchanger, provide suitable environment for vegetation, help improving the output and the quality of plant, the economic benefits of big-arch shelter has been improved.

Preferably, the cold water pipe of the heat exchanger is higher than the hot water pipe, so that the shunt pipe arranged between the cold water pipe and the hot water pipe has a certain gradient, the flowing speed of cold water in the cold water pipe and the hot water pipe is improved, and the heat exchange effect is ensured.

Preferably, be provided with the outlet on the cistern, conveniently change the cold water in the cistern, when needing to change cold water, open the outlet, with the water in the cistern all discharge, close the outlet, start the suction pump, the suction pump passes through the conveyer pipe and carries the cold water in cold water source to the cistern in.

Preferably, the cold water source is an underground water well; the temperature of cold water in the underground water well is low, and when the cold water is conveyed to the heat exchanger, the heat exchanger effectively absorbs heat of the surrounding environment, so that the temperature around the heat exchanger is reduced.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure, convenient to use, the cost of manufacture is low, through the cooperation design of water supply equipment, cistern and heat exchanger, effectively to the big-arch shelter inside, especially effectively cool down to the earth's surface, makes the inside temperature of big-arch shelter even, provides a suitable environment for vegetation, has improved the output and the quality of plant, improves the economic benefits of big-arch shelter.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic top view of the heat exchanger of the present invention;

in the figure: 1. a reservoir; 2. a cold water pump; 3. a water outlet pipe; 4. a cold water pipe; 5. a shunt tube; 6. a hot water pipe; 7. a return pipe; 8. a reflux pump; 9. an underground water well; 10. a water pump; 11. a delivery pipe.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

In the structure shown in fig. 1 and fig. 2, the cooling device of the present invention comprises a water supply device, a water reservoir 1 and a plurality of heat exchangers arranged at intervals; the water supply equipment comprises a cold water source, a delivery pipe 11 and a water pump 10, wherein the cold water source is an underground well 9, and the underground well 9 is connected with the reservoir 1 through the water pump 10 and the delivery pipe 11; the water storage tank 1 is arranged outside the greenhouse, a water outlet pipe 3 and a return pipe 7 are respectively arranged on the water storage tank 1, a cold water pump 2 is arranged on the water outlet pipe 3, and a return pump 8 is arranged on the return pipe 7; the heat exchangers are arranged in the greenhouse at intervals, are positioned on the ground below the planting groove and comprise cold water pipes 4 and hot water pipes 6, the cold water pipes 4 are communicated with the hot water pipes 6 to form a U-shaped structure, the cold water pipes 4 are arranged at a height greater than that of the hot water pipes 6, and a plurality of shunt pipes 5 which are arranged at intervals are arranged between the cold water pipes 4 and the hot water pipes 6; a cold water pipe 4 of the heat exchanger is communicated with a water outlet pipe 3, and a hot water pipe 6 of the heat exchanger is communicated with a return pipe 7.

The working principle of the utility model is as follows:

when the utility model is implemented, the water pump 10 is used to pump out the cold water of the underground water well 9, and the cold water is conveyed into the reservoir 1 through the conveying pipe 11. Then, starting a cold water pump 2 and a reflux pump 8, pumping out cold water in the reservoir 1 by the cold water pump 2, conveying the cold water to a cold water pipe 2 of the heat exchanger through a water outlet pipe 3, and then flowing to a shunt pipe 5 and a hot water pipe 6 of the heat exchanger, wherein cold water is provided for the heat exchanger when the cold water flows into the heat exchanger, so that the heat exchanger absorbs heat of the surrounding environment, and the temperature of the surrounding environment of the heat exchanger is effectively reduced; the reflux pump 8 pumps the hot water distributed in the reflux pipe 7 back into the reservoir 1, and the hot water in the reservoir 1 and the outside air perform heat exchange action or the heat is naturally dissipated, so that the water temperature of the reservoir 1 is effectively reduced; then, the cold water of cistern 1 is carried to the heat exchanger through outlet pipe 3 and cold water pump 2 again, and the hot water that the heat exchanger flows out is carried to cistern 1 through back flow 7 by backwash pump 8 again to this circulation, the inside temperature of cooling big-arch shelter provides suitable environment for vegetation, helps improving the output and the quality of plant, has improved the economic benefits of big-arch shelter.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a modern facility big-arch shelter cold water circulation heat sink which characterized in that: comprises a water supply device, a reservoir and a plurality of heat exchangers which are arranged at intervals; the water supply equipment comprises a cold water source, a delivery pipe and a water pump, wherein the cold water source is connected with the reservoir through the water pump and the delivery pipe; a water outlet pipe and a return pipe are respectively arranged on the reservoir, a cold water pump is arranged on the water outlet pipe, and a return pump is arranged on the return pipe; the heat exchanger comprises a cold water pipe and a hot water pipe, the cold water pipe is communicated with the hot water pipe and forms a U-shaped structure, and a plurality of shunt pipes which are arranged at intervals are arranged between the cold water pipe and the hot water pipe; the cold water pipe of the heat exchanger is communicated with the water outlet pipe, and the hot water pipe of the heat exchanger is communicated with the return pipe.

2. The modern facility greenhouse cold water circulation cooling device of claim 1, wherein: the cold water pipe of the heat exchanger is higher than the hot water pipe.

3. The modern facility greenhouse cold water circulation cooling device of claim 1, wherein: and a water outlet is arranged on the water storage tank.

4. The modern facility greenhouse cold water circulation cooling device of claim 1, wherein: the cold water source is an underground well.