Local intelligent cooling system and cooling method of facility vegetable physical space

Abstract

The invention discloses a local intelligent cooling system for physical space of facility vegetables and cooling method thereof, which comprises a vertically mounted support, and the middle part of the support forms a physical space for housing facility vegetables. The physical space is provided with a local cooling system, and the local cooling system comprises a transparent water tank arranged at the top of the support, a water pump and a buried cooling pool, wherein the water pump pumps cold water in the cooling pool and injects water into the transparent water tank through a water tank injection pipe. A water tank water spraying hole array is arranged at the edge of the bottom of the transparent water tank. A water return tank is arranged below the water spraying hole array of the water tank. The cold water dripped from the water spraying hole array of the water tank forms the first cold water curtain to cover the open side of the support. The local intelligent cooling system for physical space of facility vegetables and cooling method thereof utilizes the low-temperature natural effect under the ground surface to carry out heat exchange through water flow so as to form the local microclimate environment of vegetables.

Description

technical field [0001] The invention relates to the technical field of facility vegetable planting, in particular to a local intelligent cooling system and cooling method for facility vegetable physical space. Background technique [0002] South China belongs to the subtropical climate region, and the proportion of high temperature weather is large throughout the year. A type of facility vegetables in this area are closed above with sunshade nets, and the temperature inside and outside the facility is almost the same. Temperature is one of the important environmental factors affecting the healthy growth of vegetables. How to implement low-energy, high-efficiency, and environmental-friendly implementation of local cooling in the facility without affecting other environmental factors that are beneficial to the healthy growth of vegetables is a technical problem to be solved by the present invention. [0003] According to the "National Key Regional Development Plan for Facili...

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Problems solved by technology

However, the air humidity in the facility is increased, and high humidity is one of the main factors leading to vegetable diseases and insect pests; at the same time, if the water mist is not recycled and reused, it will cause waste of water resources

[0014] 3. Air curtain machine cooling method: through the flow of low-temperature and low-humidity air in the facility after passing through the water flow, the cooling effect is achieved, but it also increases the air humidity in the facility; at the same time, it is not suitable for vegetable plants or planted plants in the facility. Higher heights are not conducive to air flow

The cooling effect of ventilation method is not good in extremely high temperature environment, usually only the whole house cooling method can be used, and the cooling energy consumption is high

For open facilities, the physical space effect of vegetables is not obvious

[0015] 4. Dry cold air cooling method: the moisture of the plants evaporates quickly, and the requirements for timely supplementation of air humidity and water required by the plants are high, resulting in an increase in indirect costs

The cooling effect of ventilation method is not good in extremely high temperature environment, usually only the whole house cooling method can be used, and the cooling energy consumption is high

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