Greenhouse insulation film control mechanism and its installation method

Abstract

The invention relates to a greenhouse heat preservation membrane control mechanism and a mounting method thereof and belongs to the technical field of greenhouse control systems. The greenhouse heat preservation membrane control mechanism can be used for solving the problem in the prior art that heat preservation and heat dissipation are unbalanced. The greenhouse heat preservation membrane control mechanism is additionally provided with a movable biofilm culturing device and a controller, and the control mechanism controls the movable biofilm culturing device to move up and down by stretching a rope on the movable biofilm culturing device; a heat preservation membrane is stretched to the top of a greenhouse by virtue of the movable biofilm culturing device from the bottom of the greenhouse, so as to form a closed inner membrane space, the closed inner membrane space and an external mold space of a double-layer skeleton form a two-layer heat preservation membrane structure together, and the inner heat preservation membrane ascends and descends to realize balance between heat preservation and heat dissipation of the greenhouse. The greenhouse heat preservation membrane control mechanism hardly produces fog during the day, especially, heat preservation effect is increased by 2-3 DEG C compared with the traditional greenhouses at night, and labour is saved by virtue of dynamic control; and the mounting method of the greenhouse heat preservation membrane control mechanism is simple and easy to operate and has great popularization value.

Description

technical field [0001] The invention relates to a greenhouse insulation film control mechanism and an installation method thereof, and belongs to the technical field of greenhouse control systems. Background technique [0002] The current greenhouse insulation film is welcomed by the market because of its thermal insulation and heat dissipation characteristics. However, the prior art has the following disadvantages: (1) For the traditional single-layer skeleton greenhouse, a layer of thermal insulation film structure is adopted, and the thermal insulation effect is poor due to the poor sealing degree of the layer of film; and the control mechanism in the prior art is located at the thermal insulation Outside the film, the external shading omentum is controlled by the up and down stretching of the roller blind for heat preservation. (2) For the new type of double-layer skeleton greenhouse, although the inside and outside are equipped with thermal insulation film, the thermal...

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Problems solved by technology

However, the prior art has the following disadvantages: (1) For the traditional single-layer skeleton greenhouse, a layer of thermal insulation film structure is adopted, and the thermal insulation effect is poor due to the poor sealing degree of the layer of film; and the control mechanism in the prior art is located at the thermal insulation On the outside of the film, the external shading omentum is controlled by the up and down stretching of the roller blind for heat preservation

(2) For the new double-layer skeleton greenhouse, although the inside and outside are equipped with thermal insulation film, the thermal insulation effect is good, but during the day, the light is sufficient, and the degree of sealing is too high, resulting in heat dissipation problems

At present, there is no control mechanism for lifting and lowering the inner insulation film, and there is no control mechanism for heat dissipation and cooling in double-layer skeleton greenhouses

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