Local automatic cooling device and cooling method based on buried cooling pool

Abstract

The invention discloses a local automatic cooling device based on a buried cooling method and a cooling method thereof, the device comprise two parallel first return grooves, the space between the twofirst return grooves forms a physical space for accommodating a vegetable planting frame, a bracket is fixedly arranged on the outer walls of the two first return grooves, and a first water sprayingpipe which is parallel to the first return grooves is arranged on the bracket; the first spraying pipe is connected with the outlet of a water pump, the inlet of the water pump is also connected witha buried cooling water pool, the inner side of the pipe body of the first spraying pipe is provided with a first spraying hole group, cold water sprayed from the first spray hole group is injected into the opposite first return grooves through the upper space of the physical space, and the first return grooves are communicated with the cooling water pool through a return pipe. The method utilizesthe low-temperature natural effect under the ground surface to carry out heat exchange through water flow so as to form a 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 automatic cooling device based on an underground cooling pool and a cooling method thereof. 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...

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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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