What are the types of gas holders?

Gas conservator is the most widely used gas storage equipment nowadays. It can be divided into high pressure gas conservator, medium pressure gas conservator and low pressure gas conservator according to different pressures; According to the structure of the moving parts and the different sealing methods, it can be divided into two types: wet type and dry type.
Wet gas holder is a kind of gas holder structure developed in the 1960s in China. Now it has a large share in the domestic market with its mature design and construction technology. The wet gas storage tank is a spiral tower section structure with water seal, which has the advantages of simple structure, low cost and steel saving. However, the tower section of the gas holder needs to rise and fall frequently in the process of use, and the dry and wet state changes constantly, so it is easy to corrode and shorten the service life of the gas holder. The service life of wet gas conservator is usually 20-25 years.
Dry gas storage tank is a structure that uses thin oil, grease or flexible film as the sealing medium and stores gas through the piston inside the lifting gas tank. The thin oil (grease) sealed gas holder in the dry gas holder is a kind of cabinet structure developed and designed in the 1980s in China. Although it has high cost and complex construction technology, it has the characteristics of corrosion resistance and pressure stability, and is widely used.
As a dry gas holder with flexible membrane sealing gas, the gas holder was founded in the United States in 1940. Because of its advantages such as simple construction, low cost, corrosion resistance, long service life (usually 30~40 years), beauty and other advantages that other gas holders can not compare, it is widely used in many industries such as gas supply, chemical industry, electric power, steel, sewage treatment, etc.