CN102726255A - Double-layer plastic film greenhouse lighting heat insulation method - Google Patents

Abstract

The invention discloses a double-layer plastic film greenhouse lighting heat insulation method, which is characterized in that a first layer film of a greenhouse plastic film is firstly covered, the first layer film is fixed, at first, a foam body with the diameter being 15cm and the length identical to a greenhouse body is artificially pulled up, the two ends of the foam body are fixed at a ridge part of an arch house, the highest point lines are perfectly fixed, a ridge is formed, then, eight pieces of foams are respectively and uniformly fixed at two sides of the greenhouse at equal intervals, and finally, the prepared plastic film is covered on the foam and is perfectly fixed. A left greenhouse and a right greenhouse with the double-film space being 10cm are naturally formed through isolation, a heat isolation layer is formed, and a heat insulation effect is reached. The double films are both transparent double-films, the light transmission absorption performance is good in daytime, the temperature rise is fast, the temperature can reach about 35 degrees in the daytime, cotton and grass pads are not arranged on the greenhouse, rain and snow falling on the greenhouse can fast slide down, the house body top weight increase of the house body caused by too heavy rain or snow cannot occur, so the pressing collapse risk is avoided.

Description

A kind of double-layer plastic film temperature canopy lighting heat preserving method

Technical field

The invention belongs to technical field of solar, relate to a kind of double-layer plastic film temperature canopy lighting heat preserving method specifically.

Background technology

In winter, northern China temperature is low, and vegetables, the production of flowers and plants be unable to do without plastic tunnel, and often the daylighting of monolayer plastic booth is effective; But the heat insulation effect difference causes the interior day and night temperature of canopy very big, vegetables. plants such as flowers are difficult to adapt to, and conventional heat preserving method is that plastic foil covers straw mattress or cotton pad etc. outward again; Pull-up every morning comes, and puts down at dusk, take a lot of work, time-consuming, investment is big; Canopy body own wt is big, and sleet sky weight is bigger, also damages plastic foil easily.

Summary of the invention

The objective of the invention is to, overcome the deficiency of prior art, and a kind of double-layer plastic film lighting heat preserving method is provided, can effectively avoid monofilm to add the warm canopy shortcoming of straw mattress, improve warm canopy production service efficiency, reduce the loss, the person's of lightening one's labor labour intensity etc.More can make temperature of shed moderate, day and night temperature diminishes, and reaches the purpose of convenient, simple and direct, health, environmental protection.

For realizing the foregoing invention purpose, the present invention adopts following technical scheme:

A kind of double-layer plastic film temperature canopy lighting heat preserving method is characterized in that: the first step, and processing is grown 1.2 meters～1.5 meters more than one, 15 centimeters of diameters, the cylinder foam of 0.5～0.7 diametric hole is left in the centre; And wear the same long foam to connect cylinder with warm canopy length with rope or iron wire.

In second step, processing is grown 1.2～1.5 meters more than one, 12 centimeters of diameters, and 0.5～0.7 centimeter cylinder foam is left in the centre, and wearing with rope or iron wire is linked to be foams, and it is subsequent use to wear into eight the same long foams with warm canopy.

In the 3rd step, last booth plastic foil first tunic fixes first tunic; At first come 15 centimeters the same long foams personnel selection pull-ups with the canopy body of diameter, two is fixed on shed spine place, on the peak line; Fix, form spine, secondly; The even equidistant Wen Peng both sides that are fixed on of eight foams, last respectively, fix ready plastics membrane cover in the above and to get final product.

Advantage and good effect: be isolated into two about 10 centimeters warm canopies of intermembranous distance naturally, form thermal insulation layer, reach heat insulation effect, because two film is transparent pair of film entirely; Daytime, the printing opacity absorbent properties were good, and temperature recovery is fast, can reach daytime about 35 degree; Can be according to temperature requirements, the cooling of suitably leaking informaton, three. two films top need not to cover adjuncts such as cotton pad again; Alleviate manual work greatly, reduce spurring up and down the film damage, clean, convenient.Canopy body own wt, particularly upper strata weight alleviates greatly, and particularly the sleet sky does not have cotton straw mattress above the canopy, can glide rapidly above sleet falls, and the canopy body can not pressed the risk of collapsing thereby do not have because of sleet increases the weight of canopy body top-heavness too greatly.

Embodiment

A kind of double-layer plastic film temperature canopy lighting heat preserving method is characterized in that: the first step, and processing is grown 1.2 meters～1.5 meters more than one, 15 centimeters of diameters, the cylinder foam of 0.5～0.7 diametric hole is left in the centre; And wear the same long foam to connect cylinder with warm canopy length with rope or iron wire.

In second step, processing is grown 1.2～1.5 meters more than one, 12 centimeters of diameters, and 0.5～0.7 centimeter cylinder foam is left in the centre, and wearing with rope or iron wire is linked to be foams, and it is subsequent use to wear into eight the same long foams with warm canopy.

In the 3rd step, last booth plastic foil first tunic fixes first tunic; At first come 15 centimeters the same long foams personnel selection pull-ups with the canopy body of diameter, two is fixed on shed spine place, on the peak line; Fix, form spine, secondly; The even equidistant Wen Peng both sides that are fixed on of eight foams, last respectively, fix ready plastics membrane cover in the above and to get final product.

Claims (1)

1. double-layer plastic film temperature canopy lighting heat preserving method is characterized in that:

The first step, processing is grown 1.2 meters～1.5 meters more than one, 15 centimeters of diameters, the cylinder foam of 0.5～0.7 diametric hole is left in the centre; And wear the same long foam to connect cylinder with warm canopy length with rope or iron wire.

In second step, processing is grown 1.2～1.5 meters more than one, 12 centimeters of diameters, and 0.5～0.7 centimeter cylinder foam is left in the centre, and wearing with rope or iron wire is linked to be foams, and it is subsequent use to wear into eight the same long foams with warm canopy.

In the 3rd step, last booth plastic foil first tunic fixes first tunic; At first come 15 centimeters the same long foams personnel selection pull-ups with the canopy body of diameter, two is fixed on shed spine place, on the peak line; Fix, form spine, secondly; The even equidistant Wen Peng both sides that are fixed on of eight foams, last respectively, fix ready plastics membrane cover in the above and to get final product.