caused by indoor lighting and equipment. Therefore, sunshade , airtight, thermal insulation and
In the severe winter weather, the small arch shed in the greenhouse should be covered with a layer of straw buns or covered with quilts to keep warm, and then covered with a layer of film. Add windbreak and anti-freezing barrier. The combination of straw and old film into a cold wall, placed in the north of the vegetable greenhouse, as a wind barrier, can reduce the harm of cold current. When the temperature in the greenhouse is below ℃ for a long time, the mulch such as straw bag non-woven sunshade net should be covered in the greenhouse at night to prevent frost damage and take basin fire or furnace fire to heat temporarily. When heating, open fire can not be used to prevent smoke damage, it is necessary to set up a flue to put harmful gases outside. Focus on the heat preservation and anti-freezing of vegetables and seedlings in the greenhouse. For eggplant seedlings that are in the early stage of raising seedlings, measures such as artificial light supplement and temperature increase can be taken to prevent frost damage or excessive growth of seedlings; in cloudy and rainy days, the mulch should be properly removed to make the plants see as much light as possible.
Air-conditioned buildings rely on refrigerators to move the indoor heat load to the outside in summer. Obviously, if the indoor heat load is reduced, the running time of the refrigerator will be reduced, and the energy consumption of the cooling tower system will be reduced. The indoor heat load comes from two aspects, one is the heat exchange caused by the indoor and outdoor temperature difference, and the other is the heat load caused by indoor lighting and equipment. Therefore, sunshade, airtight, thermal insulation and other methods can be used to reduce indoor heat load and achieve energy saving. 1, reduce indoor heat load (1) sunshade to reduce direct sunlight radiation roof, wall, window and through the window to enter the room, you can use eaves, sunshade panels (awnings), coated glass, etc.; reduce the heat radiation of the external walls and roofs, you can use light-colored exterior wall finishes to set the insulation layer on the outside of the external walls and roofs, or overhead roofs.
According to the management of medium-and long-term weather forecast, in case of continuous low temperature, the temperature of the mushroom house / shed should be kept above 8 ℃ ~ 10 ℃. The main measures for heat preservation and warming include: thickening the roof cover at night; hanging blankets on doors; closing doors and windows for heat preservation in the morning and evening; opening doors and windows around noon in sunny days; opening only leeward vents for short-term ventilation in rainy and snowy weather; in cold or windy weather, close doors, windows and vents to prevent cold air from attacking. When the weather is fine, open the cover to increase the temperature of the light, when the light is strong, it is best to set up a sunshade net under the greenhouse film and above the bacterial stick to protect the light and heat. If there are heating facilities such as hot air stove, the temperature of the mushroom room / shed can be increased by heating, but attention should be paid to prevent the smoke from being discharged into the shed and cause poisoning. In addition, the ditch cleaning and drainage of the mushroom shed should also be done to reduce the humidity in the greenhouse in the rainy season and improve the mushroom quality.
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The fourth is Zhongshan Chebi Road Sporting goods Co., Ltd., mainly engaged in bicycle equipment. General Manager Guo of Chebi Lu recommended several products this time. The first bicycle crossbeam bag and sunshade design has been patented, which does not affect beauty and the normal use of mobile phones during cycling; the second mobile phone bracket bag, multi-size, can be used in a variety of use scenarios; the third waterproof camel bag, waterproof material, high wear resistance, equipped with adjustable fasteners, detail design, dual security protection, various styles The fourth waterproof refrigerator, 23-inch large capacity, physical refrigeration, thickened thermal insulation cotton, quadruple thickening protection, airtight zipper design, various styles, intimate design. In addition to cycling bags, the car also produces sports gloves, sunscreen sleeves, raincoats and other products.
