The purpose of ventilation in the 10*8 ft garden greenhouse is mainly to eliminate the residual heat of the greenhouse and the moisture in the greenhouse, adjust the air content in the greenhouse, remove harmful gases, and make the environment temperature, humidity and air conditions in the greenhouse suitable for plant growth. 1.Natural ventilation Most of the time, relying on natural ventilation to regulate the indoor environment. The structure of a large-scale production glass greenhouse is generally a double-slope multi-span greenhouse, and the ventilation form is to provide ventilation windows on the side walls and the ridge. The total ventilation area is not less than 15% of the greenhouse area, preferably more than 30%. When the roof louver is opened, the sash is preferably inclined upwards above the horizontal plane, and when it is fully opened, it forms a 100-degree angle with the horizontal plane, so that a good ventilation effect can be obtained. The ventilation of natural ventilation is related to the wind speed, wind direction, ventilation window position, ventilation window area and temperature difference inside and outside the greenhouse. 2.Forced ventilation Although most of the time relies on natural ventilation to regulate the environment, when the summer temperature is high, especially in hot weather where the outdoor temperature exceeds 33 °C, when natural ventilation is difficult to meet the greenhouse cooling requirements, forced ventilation and other measures are used to cool down. It is a common means of production. Forced ventilation is the use of a fan to...
Insulation and cold protection technology in greenhouses generally have the following: 1. Cover the endometrium If the greenhouse is 8 meters wide, the gap between the inner and outer membranes should be more than 25 cm in order to achieve air insulation, thereby reducing air convection and heat loss.However, since a temperature difference is generated, water droplets are easily formed inside the inner membrane, which in turn causes an increase in humidity in the shed. 2. Cover non-woven fabric Compared with the capping of the inner membrane, the humidity in the shed can be reduced, thereby reducing the occurrence of pests and diseases. In addition, its insulation effect is also very good, and easy to manage, but it should be noted that the non-woven fabric is best hung in the surrounding position of the shed. 3. Use some heating equipment Such as heaters, etc., its power is 1000 watts, 1500 watts, 2000 watts and 2500 watts. Although it can effectively increase the temperature inside the shed, the price of the equipment is relatively high. 4. Smoked For its raw materials, you can use red-burned briquettes and sawdust to avoid the appearance of open flames and other fires. In addition, it can be combined with a fumigant. 5. Spray warm water The temperature of the water should be 25 °C - 28 °C, but it will increase the humidity of the air. Therefore, if the temperature is above a certain value after spraying warm water, then ventilation should be carried out...
You want to be alone or with friends, leave the dog alone at home, let it not be hurt, keep the dog comfortable and safe, and don't develop bad habits because of the scattered, then you can use the pet. cage. You can quickly get the dog to get into the habit of home, let it learn to wait for the owner to take it out, avoiding it from soiling the house and soiling its nest. When you travel with your dog, you won't be uncomfortable with some friends because the dog is scattered in the car, or it will affect the risk of safe driving. When your dog is tired or nervous, you can enjoy your private space in the aluminium dog cage and let it rest well. You can avoid confusion caused by your dog or other problems. As long as there is a dog's familiar nest, it can easily adapt to a strange place, so you can travel with the dog instead of throwing it at home.
Material use and process introduction: 1.Made of all-aluminum alloy frame for indoor and outdoor use; can be made in a variety of sizes; 2.The surface of the profile is smooth, no extrusion marks, scratches, etc.; iron galvanized corner material non-plastic can be used repeatedly; 3.The use of iron-galvanized iron plate can improve the product utilization rate and is not easy to cause damage during transportation; 4.The standard size of the picture is A1, can also be made according to customer needs non-standard size; the screen is attached with a matte film to protect the picture and anti-ultraviolet effect, to prevent the picture from fading too early; Poster frame Scope: Can be used in a variety of public places, stable and beautiful, easy to carry and save space.poster stand standard packaging: carton
The stainless steel pet cage must be cleaned and scrubbed frequently. Keep the surface of the stainless steel pet cage clean and dry to ensure that the stainless steel pet cage is bright every day. The coastal area should use 316 stainless steel, 316 material can resist seawater corrosion. Some stainless steel pet cages on the market do not use 304 or higher materials, so-called 202, 201 stainless steel is very easy to rust, please users when buying stainless steel pet cages try not to choose. Then the problem is, why is it easy to rust and also called stainless steel? 201, 202 stainless steel is rust-proof in clean air, such as the home decoration ceiling, the rust can be rust-proof, it can not be used for dogs. Because the dog's urine is corrosive.
Many white-collar workers will keep pets at home, such as pet dogs, pet rabbits, hamsters, etc., which can add a lot of lively atmosphere to the warm love nest, and secondly, it can also serve as a spiritual sustenance. The material of pet cages is generally plastic, stainless steel, iron wire, etc. No matter which material is used, it will slowly age. We usually need to maintain the pet cage regularly to prolong its aging speed. So, how should the pet owner maintain the pet cage to extend its life? Let's talk about it: 1. Iron wire cages should be placed in places with strong humidity and strong sunlight. It will cause problems such as rust and desoldering of the iron wire, and the temperature of the iron wire will rise after sun exposure, which is not good for the living environment of small pets. 2.Pplastic pet cages, should try to avoid places where the sun is strong, high temperature. Long-term high temperatures will accelerate the aging of plastics, thinning and becoming brittle, eventually leading to cracking. 3. Regardless of the material cage, dry the cloth with a dry cloth to prevent rust. For the parts that have been rusted, they can be sanded and then coated with paint to protect them. The parts to be welded can be re-welded.
You want to be alone or with friends, leave the dog alone at home, let it not be hurt, keep the dog comfortable and safe, and don't develop bad habits because of the scattered, then you can use the pet cage. You can quickly get the dog to get into the habit of home, let it learn to wait for the owner to take it out, avoiding it from soiling the house and soiling its nest. When you travel with your dog, you won't be uncomfortable with some friends because the dog is scattered in the car, or it will affect the risk of safe driving. When your dog is tired or nervous, you can enjoy your private space in the cage and let it rest well. You can avoid confusion caused by your dog or other problems. As long as there is a dog's familiar nest, it can easily adapt to a strange place, so you can travel with the dog instead of throwing it at home.
The portal display rack is a new type of advertising display rack, and the door-shaped frame structure can well highlight the advertising content hanging on it. Compared with other similar display racks, it is not only more stable and reliable, but also looks like a window, so it looks more upscale, so it is very popular in the advertising industry. The use of the door type display rack is very wide, and can be used by various businesses and facades, and the photo studio is indispensable. The advertising content can be changed at will, and the spring hook is used to fix the picture, which does not require the bracket to be removed. The screen can be changed directly. More convenient. The brackets of the door-type display racks are assembled, so that one display rack can be resized by reducing or increasing the pillar components of the brackets, and one display rack can be adapted to more specifications of the screen, and the cost performance is higher. In addition, the base has a relatively large area, so stability and wind resistance are also better. This type of display rack is now generally made of aluminum alloy. poster stand material has high strength and light weight. It is not only portable but also very durable due to its excellent anti-rust and anti-corrosion properties.