Suining PPH winding tank installation
The storage tank is a new spiral wound disposable product with no welding cracks and better sealing performance. The thickness of PPH storage tank is not affected by the manufacturing materials. The external welding of PPH storage tank is a process that uses the imported automatic extrusion welding unit to make the large weld of the storage tank with high stress be welded in one time. The new PPH granular material with the same property as the tank body is hot melted at the large weld seam, and is integrated with the tank bottom and tank body. Welding process characteristics of PPH storage tank bottom: high mechanization and automation, stable product quality; The weld specifications can be designed according to the stress characteristics of the products, so as to give full play to the integrity of the weld; It can reduce flash, and the joints are smooth and beautiful.
Suining PPH winding tank installation
The reason why the price of PPH storage tank is higher than that of PP storage tank. The production process is different. PP storage tank is a kind of storage tank made by welding polypropylene plates, while PPH storage tank is made by processing PPH particles after physical treatment. The raw materials are different. The raw material of PPH storage tank is PPH granular material, and the raw material of PP storage tank is polypropylene plate. The cost of PPH granular material is higher than that of polypropylene plate; Due to different processing equipment, PPH storage tank needs to use steel mold for processing, and it needs to use natural gas for preheating before processing. The startup cost is high, and PP storage tank directly uses polypropylene plate to enter the tank, so the cost is low; The power consumption is different. The PPH storage tank needs to use electric heating to melt the granular materials out of the steel mold. The power consumption is large. The PP storage tank is only the welding gun of the electric welding point, and the power consumption is small; PPH storage tank needs to be cooled and then demoulded, which is carried out through electrical equipment rather than PP storage tank; PPH storage tank is welded with extrusion type large electric heating traction gun, which has high power consumption. PP storage tank is welded with manual small traction gun, which has low power consumption; The labor cost is different. PPH storage tank has less labor than PP storage tank, which is why many plastic storage tank manufacturers hope to develop PPH storage tank.
Suining PPH winding tank installation
Physical anti-corrosion of PPH winding tank: during processing, appropriate oily film-forming agent is used in the mesh, so that the anti-corrosion effect of the produced equipment will be much better when it is used. For example, the use of some lead containing pigments and oil together can make the anti-corrosion coating more compact, which will also reduce the penetration of substances to the equipment. Phosphate pigments are basic acid salts that are difficult to dissolve after hydrolysis, which can effectively block the pinholes in the coating. The oxide produced by iron or the flake mica powder and other pigments can reduce the permeability of the anti-corrosion coating when filling, so the PPH winding tank can play a good role in anti-corrosion physically.
Suining PPH winding tank installation
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 ℃.
Suining PPH winding tank installation
PPH storage tank is also a polypropylene storage tank. Polypropylene can be divided into many types, and PPH is only one of them. PPH storage tank has great advantages in strength, acid and alkali resistance, aging resistance and appearance. The plastic storage tank is made of polypropylene (PP), reinforced polypropylene (PPH) and other raw materials, and is integrally molded by a special rotational molding process. There are no welding, no leakage, light weight, aging resistance, impact resistance, corrosion resistance, and long service life. So there is only one letter difference between PPH storage tank and PP storage tank. Is there any relationship between them? Don't tell me, there are really connections and differences. Let's get to know. PPH storage tank is formed by using alloy polypropylene technology at one time, but PP storage tank is rolled with polypropylene sheet, so its anti-corrosion performance will be much lower. PPH storage tank is more resistant to temperature than ordinary polypropylene, and can resist the erosion of strong chemicals. In addition, the properties of PP material and PPH material are similar, acid and alkali resistant and corrosion resistant. PPH storage tank is more expensive than PP storage tank. The plastic storage tank has great performance in terms of performance and is relatively durable. To some extent, it is a kind of tank that cannot be replaced by ordinary storage tanks.
Suining PPH winding tank installation
When PPH storage tank is used, the filling rate shall not be greater than 95%, and excessive filling is strictly prohibited. Made of polypropylene, it can contain inorganic acid, malic acid, salt, ammonium, alkali, oil and most gaseous compounds under normal temperature and pressure; The lower cracking temperature and dissolution temperature of PPH storage tank are - 70 ℃ to 108 ℃, and the temperature of the liquid contained is usually between - 40 ℃ and 60 ℃; The filling rate of PPH storage tank shall not be greater than 95% when it is used, and excessive filling is strictly prohibited; When the valves, instruments, pipes, etc. on the equipment are frozen, nitrogen, air or hot water at 70~80 ℃ shall be used for thawing, and open fire heating is strictly prohibited; The PPH storage tank shall be equipped with acid and alkali resistant gaskets when containing acid and alkali liquids, and insoluble rubber gaskets when containing organic solvents; If you are not sure whether you can contain the required substances, you can consult our technical personnel, and if necessary, you can carry out the tank material sample soaking test.
