With the continuous development of the times, the term of PPH storage tank has become more and more familiar to people. At present, in order to facilitate the transportation of goods, many storage tanks are equipped with heaters in the storage tanks for heavy oil and crude oil. Thermal insulation measures should be taken outside the storage tanks of PPH, which is its lining method. PPH winding tank

For tank components with PPH less than 6 meters in diameter or less than 15 meters in length, workshop lining is usually used. It refers to different small parts such as pipe fittings, pipes, suspension spray devices, absorption towers, etc. In the processing workshop, the parts are first coated with unvulcanized rubber sheets, and then vulcanized in a pressure thermal vulcanization kettle at 120 ℃ - 150 ℃ under pressure. The rubber lining is mainly made of field lining rubber. On site rubber lining is used for workshop prevulcanized rubber sheet and self vulcanized rubber sheet, which are bonded on site, but the former is more than the latter. Because butyl rubber needs higher curing temperature, butyl rubber lining is generally completed in the workshop.

The rubber lining of PPH storage tank has another advantage, that is, the water filling rate should be strictly controlled on the soft foundation, so that the settlement of the storage tank will not be too fast, and attention should be paid to the change of the surface soil around the storage tank to avoid the shear failure of the foundation.

PPH tank bottom welding element

For storage and operation equipment such as PPH storage tank, the welding work of the bottom plate can determine the overall operation performance of the equipment. PPH storage tank is a large storage equipment. If the bottom plate is not welded tightly, it is easy to be damaged during transportation.

Nonconforming factors of ground welding process:

1. The material is inconsistent, the external accessories of the welding rod cannot be guaranteed, and the inconsistent cylinder material has a certain impact on the equipment quality;

2. If manual full welding is adopted, the welding strength shall not be inconsistent, the welding appearance shall be uneven, and there are many hidden dangers of equipment leakage. PPH mixing tank

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