Air conditioning system for a closed plant factory

Abstract

The utility model relates to an air conditioning system for a closed plant factory, including a cooling and dehumidifying pipe, an air circulation pipe, an air inlet pipe and an air outlet pipe, wherein the cooling and dehumidifying pipe is located outside the plant factory, and the air circulation pipe, the air inlet pipe and the air outlet pipe are located inside the plant factory, the two ends of the cooling and dehumidifying pipe are connected to the two ends of the air circulation pipe through connecting pipes, and a switch valve is arranged on the connecting pipe, the air inlet pipe is connected to one of the connecting pipes, and a fan is arranged on the air inlet pipe, and the air outlet pipe is connected to the other connecting pipe. The utility model has a simple and reliable structural design, low energy consumption, and can realize automatic control, solving the problem of high energy consumption of the existing air conditioning system.

Description

Technical Field

[0001] The utility model relates to a plant factory environment control device, in particular to an air conditioning system for a closed plant factory. Background Art

[0002] With the development of society and the advancement of science and technology, the living standards of human beings are constantly improving, and the population is increasing, but the quality and scale of land are constantly deteriorating, and will not be able to meet human needs in the future. Plant factories have become an important means to solve existing problems. Plant factories use high-precision environmental control within the facilities to ensure that the growth and development of plants in the facilities are not or are rarely restricted by natural conditions, and can achieve an efficient agricultural system for continuous production of plants. However, when the plant growth lamps in the plant factory are working, a large amount of electrical energy is converted into heat and the heat is transferred to the surrounding air by radiation and convection, causing the temperature of the entire environment to rise, which seriously affects the growth of plants.

[0003] In order to cope with the higher ambient temperature in plant factories, additional air-conditioning equipment is often required to be installed in plant factories. This setting not only requires a large amount of capital investment, but the air-conditioning equipment also consumes a lot of energy to operate and cannot meet the requirements of low-carbon environmental protection. Utility Model Content

[0004] In order to solve the above-mentioned defects existing in the prior art, the utility model provides an air-conditioning system for a closed plant factory, which has a simple and reliable structural design, low energy consumption, and can realize automatic control, thus solving the problem of high energy consumption of the existing air-conditioning system.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model adopts: an air-conditioning system for a closed plant factory, including a cooling and dehumidification pipe, an air circulation pipe, an air inlet pipe and an air outlet pipe, the cooling and dehumidification pipe is located outside the plant factory, the air circulation pipe, the air inlet pipe and the air outlet pipe are located inside the plant factory, the two ends of the cooling and dehumidification pipe are respectively connected to the two ends of the air circulation pipe through connecting pipes, and a switch valve is arranged on the connecting pipe, the air inlet pipe is connected to one of the connecting pipes, and a fan is arranged on the air inlet pipe, and the air outlet pipe is connected to the other connecting pipe.

[0006] Preferably, the air circulation pipe is located at the upper end of the plant factory, and an air valve is provided on the air circulation pipe.

[0007] Preferably, the cooling and dehumidifying pipe is arranged obliquely, and the angle between the cooling and dehumidifying pipe and the horizontal plane is α, 0°>α≤10°, so as to discharge the condensed water generated in the cooling and dehumidifying pipe from the air outlet pipe.

[0008] Preferably, the cooling and dehumidifying tube is made of copper tube or aluminum tube.

[0009] Preferably, the air inlet duct is arranged horizontally, and the air outlet duct is arranged vertically, the air inlet of the air inlet duct is located above the plant factory, and the air outlet of the air outlet duct is located below the plant factory, and they are arranged diagonally.

[0010] Preferably, a three-way pipe is connected to the air outlet of the air outlet pipe, a plug is arranged on the lower opening of the three-way pipe, and a drainage hole is arranged on the plug.

[0011] Preferably, a water storage tank is arranged below the drainage hole.

[0012] Preferably, the system further comprises a controller, wherein the controller is electrically connected to the fan, the switch valve and the air valve.

[0013] Compared with the prior art, the beneficial effects of the utility model are: using the external environment as a cold source, no artificial cold source is required, low cost, low use cost, low energy consumption, and automatic control; when the cooling and dehumidification in the plant factory is too large, and the external environment temperature is lower than the temperature in the plant factory, the system automatically opens the switch valve, closes the air valve, and then turns on the fan, so that the hot and humid air in the plant factory enters the refrigeration and dehumidification pipe, thereby achieving cooling and dehumidification of the plant factory; when the plant factory needs air disturbance, the system automatically closes the switch valve, opens the air valve, and then turns on the fan, so that the air enters the air circulation pipe, thereby achieving the flow of air in the plant factory, and the flowing air is conducive to the growth of plants, thereby creating an optimal growth environment for the plants in the plant factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments and are not easily understood by ordinary technicians in this field.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Explanation of symbols: 1. Cooling and dehumidification pipe; 2. Air circulation pipe; 3. Air inlet pipe; 4. Air outlet pipe; 5. Connecting pipe; 6. Switch valve; 7. Fan; 8. Air valve; 9. Three-way pipe; 10. Plug; 11. Water storage tank; 12. Plant factory

[0017] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0019] An air conditioning system for a closed plant factory, see Figure 1 , including a cooling and dehumidifying pipe 1, an air circulation pipe 2, an air inlet pipe 3 and an air outlet pipe 4, the cooling and dehumidifying pipe 1 is located outside the plant factory 12, the air circulation pipe 2, the air inlet pipe 3 and the air outlet pipe 4 are located inside the plant factory 12, the two ends of the cooling and dehumidifying pipe 1 are connected to the two ends of the air circulation pipe 2 through connecting pipes 5, and a switch valve 6 is arranged on the connecting pipe 5, the switch valve 6 is used to cut off or open the refrigeration and dehumidification pipe passage, the air inlet pipe 3 is connected to one of the connecting pipes 5, and a fan 7 is arranged on the air inlet pipe 3, and the air outlet pipe 4 is connected to the other connecting pipe 5.

[0020] Preferably, the air circulation pipe 2 is located at the upper end of the plant factory 12, and a wind valve 8 is provided on the air circulation pipe 2 for closing or opening the passage of the air circulation pipe.

[0021] Preferably, the cooling and dehumidifying tube 1 is arranged obliquely, and the angle between the cooling and dehumidifying tube 1 and the horizontal plane is α, 0°>α≤10°, so as to discharge the condensed water generated in the cooling and dehumidifying tube 1 from the air outlet pipe 4.

[0022] Preferably, the cooling and dehumidification tube 1 is made of copper tube or aluminum tube, which has high thermal conductivity and is conducive to rapid cooling and dehumidification.

[0023] Preferably, the air inlet duct 3 is arranged horizontally and the air outlet duct 4 is arranged vertically. The air inlet of the air inlet duct 3 is located above the plant factory 12, so that the fan 7 can absorb the hot and humid air above the plant factory for cooling and dehumidification. The air outlet of the air duct 4 is located below the plant factory 12 and is arranged diagonally to facilitate the disturbance of the air in the plant factory 12.

[0024] Preferably, a three-way pipe 9 is connected to the air outlet of the air outlet pipe 4, a plug 10 is provided on the lower opening of the three-way pipe 9, and a drainage hole is provided on the plug 10 to facilitate the removal of condensed water.

[0025] Preferably, a water storage tank 11 is provided below the drainage hole for storing condensed water. The stored condensed water can be used for plant irrigation, thereby realizing the circulation of water resources in the plant factory and reducing the waste of water resources.

[0026] Preferably, the system further comprises a controller, which is electrically connected to the fan, the switch valve and the air valve. The controller controls the opening and closing of the air valve as required, and the air volume can be automatically and continuously adjusted according to the temperature and humidity conditions.

[0027] The working principle of the air conditioning system for the closed plant factory is as follows:

[0028] Cooling and dehumidification function: When the temperature in the plant factory is too high or the humidity is too high, and the ambient temperature is lower than the temperature in the plant factory, the system controls the switch valve 6 to open, the air valve 8 to close, and the fan 7 to start to suck the hot and humid air into the cooling and dehumidification pipe 1, so as to achieve cooling and dehumidification of the air inside the plant factory 12. The air after cooling and dehumidification is discharged through the three-way pipe 9, thereby achieving cooling and dehumidification of the plant factory 12. When the temperature in the plant factory 12 reaches the set requirements, the system automatically controls the switch valve 6 to close, the fan 7 to turn off, and the cooling and dehumidification function is stopped. During the system cooling and dehumidification process, the condensed water enters the water storage tank 11 through the drainage hole of the plug 10 under the action of the inclination angle a and the wind. The collected condensed water can be used to irrigate the plants to reduce the waste of water resources.

[0029] Air disturbance function: When air disturbance is required in the plant factory 12, the system automatically controls the switch valve 6 to close, the air valve 8 to open, and the fan 7 to start, so that the air at the top is sucked in through the air inlet pipe 3, passes through the air circulation pipe 2 and the exhaust pipe 4, and is finally discharged through the three-way pipe 9, thereby realizing the flow of air in the plant factory 12. The flowing air is beneficial to the growth of plants.

[0030] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An air conditioning system for a closed plant factory, characterized in that: It includes a cooling and dehumidifying pipe, an air circulation pipe, an air inlet pipe and an air outlet pipe. The cooling and dehumidifying pipe is located outside the plant factory, and the air circulation pipe, the air inlet pipe and the air outlet pipe are located inside the plant factory. The two ends of the cooling and dehumidifying pipe are respectively connected to the two ends of the air circulation pipe through connecting pipes, and a switch valve is arranged on the connecting pipe. The air inlet pipe is connected to one of the connecting pipes, and a fan is arranged on the air inlet pipe. The air outlet pipe is connected to the other connecting pipe.

2. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The air circulation pipe is located at the upper end of the plant factory, and an air valve is arranged on the air circulation pipe.

3. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The cooling and dehumidifying pipe is arranged obliquely, and the angle between the cooling and dehumidifying pipe and the horizontal plane is α, 0°>α≤10°, so that the condensed water generated in the cooling and dehumidifying pipe can be discharged from the air outlet pipe.

4. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The cooling and dehumidifying tube is made of copper tube or aluminum tube.

5. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The air inlet pipe is arranged horizontally, and the air outlet pipe is arranged vertically. The air inlet of the air inlet pipe is located at the top of the plant factory, and the air outlet of the air outlet pipe is located at the bottom of the plant factory, and they are arranged diagonally.

6. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The air outlet of the air outlet pipe is connected with a three-way pipe, a plug is arranged on the lower opening of the three-way pipe, and a drainage hole is arranged on the plug.

7. The air conditioning system for a closed plant factory according to claim 6, characterized in that: A water storage tank is arranged below the drainage hole.

8. The air conditioning system for a closed plant factory according to claim 1, characterized in that: The system also includes a controller, which is electrically connected to the fan, the switch valve and the air valve.

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