Local intelligent cooling device and cooling method for facility vegetable physical space

Abstract

The invention discloses a local intelligent cooling device for physical space of facility vegetable and cooling method thereof. The local intelligent cooling device comprises a vertically arranged bracket, a physical space for accommodating facility vegetable formed at the top of the bracket, and a local cooling device arranged in the physical space. The local cooling device comprises a transparent water tank arranged at the top of the bracket, a water pump and a buried cooling water tank, wherein the water pump pumps cold water in the cooling water tank to be injected into the transparent water tank through a water tank water injection pipe, and the edge of the bottom of the transparent water tank is provided with a water tank water spraying hole group; a water return tank is arranged below the water tank water spraying hole group. The cold water dripped from the water tank water spraying hole group forms a first cold water curtain to cover the open side surface of the bracket. A water spraying pipe is installed at the outer wall of the water return tank, a spraying hole group is arranged in the inner side of the pipe body of the water spraying pipe, and the cold water sprayed from the spraying hole group forms a second cold water curtain. The device utilizes the natural effect of low temperature under the surface and heat exchanges through the water flow to form a local microclimate environment for vegetables.

Description

technical field [0001] The invention relates to the technical field of facility vegetable planting, in particular to a local intelligent cooling device and cooling method for the physical space of facility vegetables. 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 fo...

AI Technical Summary

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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