Installation of Shiyan PPH winding tank
Basic regulations for installation of PPH storage tank, service platform level and ability to withstand relative working pressure. If the steel frame structure is adopted, the gap should not be too large, and the wooden board or stainless steel plate should be laid. Check whether there are sharp objects such as steel nails on the wooden board to avoid damaging the storage tank or using concrete as the industrial foundation. Provisions for smooth leveling. Generally speaking, the mud road can be paved with blockboard to improve the compressive strength and working pressure. When organic chemicals are stored in PPH storage tank (first contact the manufacturer to order thickened storage tank), good outlet pipe trench and diluent equipment, or leakage alarm system shall be provided after the storage tank arrives at the site. It shall be provided around the site. When storing chemical liquid, first communicate with the manufacturer to determine the standard of storage tank, such as thickened storage tank. During operation, if PPH storage tank needs to be monitored, it can be monitored by level gauge or induction device. When it has been used for a long time, please refer to the storage requirements of PPH storage tank and clean the residual liquid in the tank in time.
Installation of Shiyan PPH winding tank
The small softening point of PPH storage tank is 108 ℃, and the large fragmentation point is - 70 ℃, so PP storage tank can generally be used to hold liquid with temperature ranging from - 40 ℃ to 60 ℃. The feed inlet, discharge outlet, liquid level gauge outlet, flange, etc. on the PPH storage tank body are all integrally formed and welded at one time, without additional feed inlet and outlet. When containing acid-base substances, acid-base resistant gaskets shall be provided. When organic substances (especially organic solvents) are contained, insoluble rubber gaskets shall be provided. PPH storage tank is made of polypropylene, which can contain inorganic acids, malic acid, salts, ammonium, alkalis, oils and most gaseous organic substances at normal temperature and pressure. PPH storage tank cannot be used to contain strong oxidants, such as concentrated sulfuric acid, concentrated nitric acid, etc. When using PPH storage tank, we should not forget that it is just a tool we use. If the tool is not used properly, it will also break down. Therefore, why we use PPH storage tank with different life depends on how we treat them.
Installation of Shiyan PPH winding tank
Why can PPH storage tank replace stainless steel? The comparison of two kinds of dangerous chemical storage tanks is made from the aspects of mechanical strength, service life, corrosion parameters, maintenance, service temperature, etc. The service life of PPH storage tank is usually 8-10 years, while that of stainless steel storage tank is 10-13 years more; The mechanical strength of stainless steel storage tank is higher than that of PPH storage tank, but hazardous chemicals storage tank is generally placed statically, instead of storage tank with high mechanical strength; PPH storage tank is resistant to most acids, alkalis, organics and mixed liquids. As long as the service temperature is within the limited range, there will be no corrosion. Many media that PPH storage tank can resist will corrode stainless steel (except special stainless steel); In terms of maintenance, PPH storage tank is simple in maintenance and tools, which can be handled by the manufacturer; The service temperature of dangerous chemicals is generally normal temperature, and the high service temperature of PPH storage tank z can reach 100 ℃.
Installation of Shiyan PPH winding tank
PPH tank itself uses polypropylene in some new process tanks, so it has better corrosion resistance and other properties when used. In many aspects, its performance is better than that of tanks made of other materials, and its service life is longer under natural conditions. There are many advantages, so before use, please carefully check the PPH storage tank in order to better use it. PPH storage tank shall be used before appearance inspection, and its surface shall be free of crack, shrinkage cavity, slag, folding, heavy leather and other defects. The damage depth of mechanical equipment with corrosion depth and dent depth shall not exceed the allowable value of relative product execution standards. The shell test pressure of PPH storage tank valve shall not be less than 1.5 times of the nominal pressure, and the test time shall not be less than 5 minutes. The shell packaging shall be qualified without leakage. The nominal pressure test shall be conducted, and the valve sealing surface shall be qualified. If you want to soften the PPH storage tank, the temperature is about 100 ℃, so we must control the liquid temperature between minus 40 ℃ and 60 ℃ during storage.
