In engineering application, great importance is attached to the ventilation pipeline, and the cleanliness and air tightness of the pipeline itself are highly improved. Because the air pressure borne by Shandong ventilation pipeline in the purification air conditioning is twice as high as that of ordinary air conditioning, people cannot ignore it. There are certain environmental requirements for the production of the ventilation pipes of the purification air-conditioning system. Let's talk about how it works.
The requirements for the fabrication and installation of ventilation ducts of the purification air conditioning system shall not only meet the requirements for ventilation ducts of general air conditioning systems, but also meet the requirements for the fabrication and installation of ventilation ducts of systems with different cleanliness levels.
1. In the purification air conditioning system, the flange gasket shall be made of materials that do not produce dust, are not suitable for aging, and have certain strength and elasticity. The thickness is 5-8mm, and latex sponge shall not be used; Straight seam butt connection is not allowed. Trapezoidal connection is adopted for the joint. It is strictly prohibited to paint the surface of the padding; The connection of its nut at the flange interface on the same side should be tight and firm. The gasket shall not protrude into the pipe or out of the flange.
2. When the air temperature of the ventilation pipe is below 70 ℃, the flange gasket shall be rubber plate, closed cell sponge rubber sheet sealing tape or other elastic closed cell materials.
3. The air temperature of the ventilation pipe is above 70 ° C, and the flange gasket shall be asbestos rubber plate.
The site for fabrication and cleaning of ventilation pipes shall be in a relatively closed, dust-free and clean environment. The ground shall be paved with clean and dust-free protective materials (such as rubber plates or plastic plates). Good ventilation facilities shall be provided to maintain good ventilation, and the site shall be cleaned frequently to keep it clean and dust-free.
The ventilation pipe cleaning (including tank and tank cleaning) shall be carried out when it is in good ventilation condition. The ventilation pipeline system with cleanliness level of N1~N5 shall not adopt snap joint. Sealants shall be used to seal all gaps of ventilation pipes and components; The inner surface of the ventilation pipe shall be cleaned until there is no oil stain and floating dust with white silk cloth, and then the opening shall be closed with film. More relevant content will come to our website http://www.teen-livesexshows.com Consult!