Installation of Liupanshui PPH storage tank
The main contents of cleaning the HDPE storage tank are as follows: at the end of each manufacturing, clean the surface of the HDPE container with fingers, and continuously clean the outside of the mechanical equipment with a large amount of water. Damage to the thermal insulation layer is strictly prohibited. According to the processing technology, the solution can be cleaned after a certain period of time. For a long time, more than 72 hours, machines and equipment should be cleaned again before class. It is forbidden to enter acid liquor into the bobbin of this commodity. If the cleaning box requires acid, do not use acid with pH<2. Once the acid enters the casing of this mechanical equipment, hydrogen effect will occur, and the surface will fall like a fish scale on a large scale. The general cleaning cylinder uses 2% of sodium hypochlorite solution and uses tap water to clean the cylinder. The HDPE tank shall be cleaned according to the requirements of Chinese standards. When entering the machine and equipment for cleaning, the water bottle should be padded at the bottom of the sponge pad to prevent special tools from falling in. Wear rubber shoes to prevent damage to the laminated glass. To sort out the actual staff, the records must be sorted out immediately to determine the work experience and the inspection and signature of the project.
Installation of Liupanshui PPH storage tank
PPH storage tank is more advanced in materials and processing technology than polypropylene storage tank, but this will not lead to the price of the former being significantly higher than the latter, which is mainly due to the removal of intermediate profits and labor saving in the intermediate plate link. The whole tank body is thin and thick, so that the whole cylinder body is evenly stressed, the design is reasonable, and the mechanical strength and safety reliability of the tank body are guaranteed. In addition to being able to safely fill various corrosive liquids and having good sealing performance, the tank is light in weight and clean in appearance, and has more reliable advantages than plastic roll forming technology, plastic plate welding, FRP roll, hand glue technology, carbon steel lining technology and other technologies. The welding of the bottom of the tank and the bottom of the tank is the part that bears the large stress z. The internal and bottom of the tank are welded by mechanical cantilever, which can realize the large welding once without repeated welding, ensure that the tank and the tank will not leak under the rh condition, and can safely withstand various corrosive liquid operations.
Installation of Liupanshui PPH storage tank
PPH storage tank mainly includes core processes such as tank body fabrication, bottom, top, manhole, internal and external welding of inlet and outlet flange interface, which will directly affect the integrity, aging resistance, leakage prevention, service life and mechanical strength of the entire PPH storage tank. PPH storage tank body is manufactured by spiral extrusion winding technology. PPH particles are melted on the spiral extrusion winding machine, and then the molten extrusion materials form a can body on the mold. When the temperature is reduced to a certain extent, the tank can be demoulded to ensure the integrity of the tank. However, in the traditional processing form of polypropylene tank, the plate is welded into the tank. Since the very wide plate is 2000 mm, the height of the tank body is generally more than 2000 mm. In actual processing, the tank bodies are welded one by one and then formed manually. Then, for safety reasons, a stiffening ring is added at the connection of the tank.
Installation of Liupanshui PPH storage tank
Welding technology of PPH storage tank. In terms of automatic welding equipment and welding materials for large storage tanks, the degree of localization is not high enough, especially the automatic welding wire matching the imported high-strength steel plate, which still depends on imports and has high prices. This is a problem that China's PPH storage tank manufacturers must solve in the future; The research and application history of submerged arc automatic transverse welding for flip chip storage tank is not long, and there are still many problems to be solved; There is no doubt that CO2 semi-automatic gas shielded welding technology has obvious advantages over traditional shielded metal arc welding, but there are still many problems to be solved if this method is to be widely popularized and applied outdoors. First, the auxiliary equipment should be portable and flexible, and the wiring should have sufficient length. According to different weldments or parts, corresponding wind proof auxiliary devices shall be developed. It can be predicted that the development trend of welding technology of pph tank manufacturers will have a good application prospect in the welding fields such as petrochemical industry; Gas shielded welding with flux cored wire will be the development direction of large pph tank manufacturers. In the welding of low-temperature storage tank, automatic welding is beneficial to ensure the stability of low-temperature impact performance of heat affected zone.
