Classification and cleaning of greenhouse insulation quilts1

Classification and cleaning of greenhouse insulation quilts The greenhouse insulation is made of chemical fibers and chemical fibers, and the surface is treated with professional anti-radiation treatment. The corrosion degree is light and slow in specific acidic and alkaline environments. Therefore, it can be used for a long time. Save it without spoiling. The self-corrosion resistance of the greenhouse insulation quilt is less than 150-200 microns in the greenhouse, and the service life of the greenhouse can be guaranteed for 15 years. For greenhouses with wood or steel welded truss structures, the greenhouse construction should consider its durability. It is required to use a large load for design wind and snow load; a simple greenhouse with bamboo and wood structure has a service life of 5-10 years, and a large load of 15 years is required for design wind and snow load. Due to the long-term operation of the greenhouse in a high temperature and high humidity environment, surface anti-corrosion treatment must be ensured every year. Make the reflective efficiency more than 95%. The concave and convex points on the surface make the light evenly illuminate the plant surface, and accurately simulate the effect of sunlight. The light source is specially designed and manufactured according to the solar spectrum. Spectral range, the versatility of light production required for plant growth. In winter, it is necessary to strengthen heat preservation, prevent cold and frost, the climate in winter is cold, the temperature is low, and strong winds and cooling weather often occur to prevent vegetables from being damaged by low temperature. Therefore, heat preservation is so important in terms of cold protection and warmth. In production, the shed farmers use multiple mulching cultivation techniques. In layman's terms, they cover the ground with plastic film to increase the heat capacity of the soil; covering the greenhouse in winter can effectively adjust the indoor temperature. But for the sake of science, the thermometer should be hung again. The indoor thermometer should be hung on the upper part of the plant. The air temperature of different parts during the day is basically proportional to the height, especially when the plant is lush and high. Due to the shading effect of branches and leaves, the temperature drop gradient is very obvious when measured from the growing point to the ground. Take brightening measures to increase the light intensity and prolong the light time. Common classification of greenhouse insulation quilts 1. Acrylic greenhouse greenhouse cotton insulation quilt The insulation quilt is made of acrylic cotton or space cotton as the main material for cold protection, non-woven fabrics as fabrics, and made by stitching. The thermal insulation performance of this kind of thermal insulation quilt can basically meet the requirements, but the non-woven fabric is not durable and it is not rainproof. If you switch to Oxford cloth, the cost will increase again, which is more difficult for farmers to accept. 2. Insulation felt greenhouse insulation quilt The insulation quilt is made of felt as the main material for cold protection. It can be placed with multiple layers of felt and plastic cloth. It is made by sewing method. , played a role in rain protection. The thermal insulation can meet the requirements, but the disadvantage is that the service life is not long, and the PE film will generally break in 3 to 4 years. In addition, many farmers like to make their own thermal insulation quilts for greenhouses, but most farmers make thermal insulation quilts that are not waterproof on both sides. Like straw curtains, they get wet and dry quickly. Another disadvantage of homemade thermal insulation quilt is that water will enter the needle hole, so it is recommended to use a waterproof Oxford cloth on one side and a breathable Oxford cloth on the other side, so that even if a small amount of rain seeps through the needle hole, it will dry from the back. 3. Composite greenhouse insulation quilt This type of greenhouse insulation quilt is made of two layers of 2mm thick honeycomb plastic film, two layers of non-woven fabrics, and chemical fiber cloth. The insulation is lightweight and suitable for machine rolls. After a winter of use, the reflected disadvantage is that the honeycomb plastic film and non-woven fabric inside are easily broken after being rolled by mechanical transmission. Its thermal insulation properties are stronger than straw curtains, and it is suitable for use in areas where the low temperature cannot be lower than -15°C. The cleaning effect of the greenhouse insulation quilt: 1. Make the sun shine on the golden greenhouse and be absorbed by the plants for photosynthesis; 2. It is particularly important to improve the daylighting rate, especially in the cold season, and the production of the insulation quilt is very important; 3. The use of corrosion-resistant , The material does not shed hair basically in use, and can absorb the dust on the greenhouse film; 4. Keep the greenhouse film clean and bright, and improve the amount of lighting in the greenhouse; 5. The quality of the crops produced by increasing the temperature difference is greatly improved. It is especially suitable for planting melon and fruit crops; 6. The thermal insulation quilt cleans the greenhouse film, and there is no need to clean it, which reduces the damage to the greenhouse film; 7. Since the thermal insulation quilt is softer than that of straw, it greatly reduces the The degree of damage to the greenhouse film caused by the use of the roller shutter machine.