Selection method and attention problems of greenhouse insulation quilt

The selection method and attention problems of greenhouse insulation quilt The weather is getting colder, and people are wearing thick clothes. At the same time, the greenhouse also put on its small padded jacket to resist the attack of this severe cold. Insulation is used as a greenhouse“cotton coat”, While raising the temperature of the greenhouse, it also contributes an important force to enrich people's dining table in winter. However, in the use of greenhouse insulation quilts, there will be some factors that affect its use. Let's take a look at what affects its use and how we should solve and maintain it. Greenhouse insulation quilt production method First, the prepared felt is spread out, and the fibers are acupuncture in the middle of the greenhouse insulation blanket, which is filled with still air to form a single-layer or double-layer straw curtain that can be rolled and covered. Degree in line with the principle of thermal insulation. The inert gas in the middle is made of soft and can be pasted on the uneven plastic sheet, and the air is sewed by a special machine. In this way, the sealing performance is better, which can ensure the indoor temperature of the greenhouse insulation quilt, and the greenhouse warming agent directly affects the economic benefits of vegetable growers. Using the stitching method to make the thermal insulation quilt heavier than the composite greenhouse, it is specially used for the solar greenhouse to continue the upper layer of thick woolen velvet. The choice of greenhouse thermal insulation quilt: 1. Detect the degree of thermal insulation. The advantage of thermal insulation quilt over straw curtain is that it is not ventilated, and the thermal insulation effect is greatly improved. The main factor that determines the thermal insulation effect is the application of thermal insulation layer. Foam pearl cotton. Miscellaneous cotton has high cotton content, good thermal insulation effect, and the price is suitable. It is the main component of thermal insulation quilts in the market. The advantage of silk cotton is that its chemical composition is stable, but it is ventilated, light in weight and high in price. Generally, the amount of use is very small. Foamed pearl cotton has just been applied in the past 3 years. In the greenhouse insulation quilt, the advantage is that it can be fully waterproof, and the disadvantage is that the price is high and the transportation cost is high. 2. What kind of fabric is used for tensile and top use, and thermal insulation is a facility with a large one-time investment. Compared with straw curtains, the service life has an account. Nowadays, there are no tensile, corrosion-resistant and affordable fabrics on the market. Spinning and making quilts are generally used for 6-10 years. Of course, according to the selection of raw materials and processing technology, the product grades are also divided into several levels. For 500g flower material, the air-laid fiber is short, the processing technology is simple, and the quality is poorer. , the price is generally about 1.3-1.6, the high-speed carding and laying fiber is long, the needle punch is dense, the quality is good, the price is generally between 1.5-1.7, the black material and the gray material have more fiber content than the flower material, the silk is long, and the price is more expensive per square meter About 0.5-0.6 yuan, the fabric determines the service life of the thermal insulation quilt, so vegetable farmers and owners need to pay attention when choosing. 3. Processing technology and internal control system determine product quality, such as the selection of quilting threads, the internal and external application of tension belts, the composition of thread buckles, and whether the product ingredients are sufficient. It is not only to consider the production capacity of an enterprise, but also to examine the integrity of a business owner. and work style. 4. The selection of thermal insulation quilts should take into account the regional factors. The relative temperature in Henan and Jiangsu is high in winter, and the quilt can be made thinner. In the northwest and northeast, the thickness of the quilt should be increased. Secondly, consider the plant habits. The choice of cold-resistant and warm-loving plants is different. For example, the quilt of the tomato shed can be thinner than that of the cucumber shed. It is also necessary to consider the structure of the shed, such as brick walls, earth walls, and whether there are heating facilities. The use of greenhouse insulation quilts provides a great help for the construction of greenhouses and plays a very important role. However, if you do not pay attention to its operation mode and its use process, it will cause a degree of loss, so in order to To effectively avoid the occurrence of this problem, we have sorted out a few problems that should be paid attention to during use: 1. The back of the thermal insulation quilt should be kept clean, so that the plastic film has good light transmittance after the thermal insulation quilt is applied. 2. When using greenhouse insulation quilts, the amount of watering should be controlled first when managing crops. Watering and irrigation is the main reason to increase the humidity in the greenhouse. For the area covered with plastic film, the method of sub-film irrigation can be used. In winter and spring, furrow irrigation can be carried out on sunny days, or watering by ramets should be strictly controlled. To avoid excessive indoor humidity affecting the growth of plants, remember to properly ventilate and loosen the soil in time after each watering. 3. When the insulation is fixed on the upper and lower sides, it should be neat and consistent. 4. In the case of long overcast and sunny weather, it is the best remedy to choose thermal insulation materials with better moisture permeability and moisture absorption. For example, non-woven fabrics can effectively prevent dew condensation on the inner surface of the shed and prevent dew from falling on the plants. This method is also the key to reducing greenhouse humidity. 5. The two insulation quilts should be tightly connected, and the standard is to be opaque from the inside of the greenhouse. 6. Before the insulation quilt of the greenhouse is opened, the ground conditions should be checked to avoid the quilt surface being scratched by the iron wire or glass on the ground. If damaged, it should be repaired in time.