Exposed to sunlight during the day, the largest heating area is the film coverage, and the largest heat dissipation at night is also the film coverage. Because the film coverage area is larger, so the thermal insulation effect of the film coverage is very important. Therefore, it is necessary to do a good job in the protection of film coverage. The shading system at the top of the greenhouse is divided into external shading, internal shading and internal heat preservation system, which are controlled by computer. The weather station system on the outside of the shed might as well monitor the wind direction and temperature at any time. The configuration of the greenhouse sunshade system is beneficial to the accumulation of reducing heat in the greenhouse, and the comprehensive temperature of crops under the sunshade is actually lower than that directly reflected by the open sun.
Use or store rubber soft joints, should avoid high temperature, ozone, oil and acid-base environment. Sunshade racks should be built for pipes used outdoors or facing the sun and the wind, and exposure, rain and wind erosion are strictly prohibited. Paint and winding thermal insulation materials are strictly prohibited on the joint surface. Due to the aging problem of rubber products, it should be inspected and replaced in time. It is very important to choose a suitable rubber joint, if you do not choose the right rubber soft joint to work, then the service life of the rubber soft joint will be greatly reduced due to the influence of the external environment and internal medium. not only a waste of resources, but also may lead to heavy damage to the whole pipeline or even have to be rebuilt, then the loss outweighs the gain. Return to Sohu to see more
3. Use a sunshade. Sunshades are like umbrellas for cars, which can block the sun and prevent ultraviolet rays. It can play a good role in protecting the items in the car, such as navigators. When parking, put the front and rear and left and right sides of the car on the sunscreen, which can reduce the thermal effect of solar radiation on the temperature in the car.
The heat preservation work in the greenhouse can be completed by side insulation and top insulation curtain, as well as internal and external sunshade curtain and top skylight. The heat preservation work can be carried out 2 hours before sunset. Close the top skylight 2 hours before sunset, expand the internal heat preservation, and then gradually expand the internal sunshade and side insulation. All the internal heat preservation, inner sunshade and side heat preservation will be carried out before sunset. If necessary, external shading can also be fully carried out for thermal insulation. When the external solar radiation is less than 300W/m2 (blade stomata closed) and need heat preservation, you can directly turn on internal heat preservation, side heat preservation and internal shading, and close the top skylight at the same time.
Of course, if you buy some of the more expensive models, then the meters in your car are likely to come from high-end watch manufacturers, such as Jaeger and Wanguo. For example, the Mercedes-Benz 680s dashboard in 1928 is dotted with more than a dozen circular pointer dashboards, which can be mistaken for the built-in display cabinets of a watch shop. Moreover, even if it comes from a famous family, it can not solve the problem that the instrument is not easy to read due to the reflection on the surface of the instrument and the lack of radians on the instrument as a whole, which gives birth to the emergence of sunken instruments and instrument sunshades.
1. Keep warm and protect against cold. The cold prevention work should not be relaxed, and the ditches should be cleared around the vegetable fields to ensure the smooth flow of drainage and irrigation, seal and fill the holes and cracks in the greenhouse film, and according to the change of air temperature, the small arch shed can be covered with sunshade net, straw curtain or non-woven fabric at night. increase heat preservation capacity.
At present, new progress has been made in the application of SMC insulation board in automobile abroad. Because of its various functions, it is widely considered to have advantages in structural design, so it is widely used in automobile dashboard, steering gear, radiator system and electronic device system. In addition, doors, bonnets and suitcase covers are also used. The SMC hood is 35% lighter than steel parts. In addition to the above new uses, other applications in automobiles are also used in the production of other parts, such as cab doors, inflatable roofs, bumper frames, warehouse doors, sunshades, An and D posts, body panels, roof drains, shed side strips, truck carriages, etc. Among them, the large amount is used on the outer panel of the car body.
Strength description: please wear hiking shoes or travel shoes, do not wear leather shoes, high heels, backpacks, sunshade hats, the route is about 8 kilometers, rising and falling are about 400 meters. Enjoy the lace and play, have a picnic after enough, there is no danger in the route, just be careful, please listen to the arrangement of the team leader to ensure safety.
Car owners who are more attentive to car maintenance usually open the car sunshade curtain after parking, which can be customized according to the car. It is mounted on the front windshield and is fixed by four large transparent suckers that can be washed and will not leave a mark on the glass. The unique corrugated design can refract most of the heat energy in the sun, infrared and ultraviolet rays, ensuring that the temperature of the center console will not rise a lot, and the temperature in the car is also much lower.
The integrated sunshade can be used to the south, south by east and south by west, shielding the incident angle is relatively small, and the sun shining obliquely from the side direction of the window, the sunshade of the baffle structure is more suitable for the windows in the east and west, it can block the orthographic window and the sunlight with relatively low incident angle. The building raw materials used in many types of sunshade structures are concrete, aluminum alloy, zinc-steel alloy, wood and so on. Because zinc-steel alloy has relatively light weight, good durability, heat resistance and low thermal conductivity, the manufacturing process is also very good, so zinc steel shutter profile is the most commonly used in all sunshade blinds.
Different from the tough and atmospheric appearance style, the Pentium T99 cockpit creates a good technological atmosphere. The whole car saves a lot of physical buttons, the center console is equipped with a double 12-inch touch screen, and an air-conditioning control screen is arranged in front of the block. The leather multi-function steering wheel is flat-bottomed for a comfortable grip. The center console covered with a large number of soft materials also enhances the sense of grade. In addition, the LCD control screen generally has the problem of reflection in the sun. Pentium T99 has designed a sunshade, which rarely appears even in strong light.