Structure of vertical welded insulated gas cylinder

The inner tank and outer shell of the vertical welded insulated gas cylinder are made of stainless steel, and the inner tank supporting system is made of stainless steel to improve strength and effectively reduce heat loss. There is a thermal insulation layer between the inner tank and the outer shell. Muti-layer thermal insulation materials and high vacuum ensure the liquid storage time.

A built-in vaporizer is arranged inside the shell to convert cryogenic liquid into gas, and the built-in supercharger can increase the pressure to a predetermined pressure and keep it stable during use, achieving the purpose of rapid and stable use. Each insulated gas cylinder has a stainless steel ring structure (protection ring) to protect the pipeline. The protective ring is connected to the cylinder with four brackets, and each bracket is slotted to facilitate the use of trolleys and cranes to carry the gas cylinder.

All operating parts are placed on the top of the gas cylinder for easy operation. In an independent use environment, the user can effectively control the use process through the discharge valve, booster valve, pressure gauge, liquid phase valve, etc.

In order to ensure that the inner liner of the gas cylinder is below the safety pressure, a safety valve and a rupture disk are installed on the gas cylinder.

 Uses and characteristics of vertical welded insulated dewar cylinder

It is used to transport and store cryogenic liquids such as liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, LNG, etc. The gas cylinder can be used to supply liquid or gaseous gas.

The gas cylinder is easy to use, safe and reliable, economical and durable. The specific features are as follows:

(1) The support system of the inner tank is made of stainless steel to achieve the purpose of low heat loss and high strength.

(2) It is easy to use and can be operated independently by a single person.

(3) Store pure cryogenic liquid.

(4) Large storage capacity. The gas storage capacity of a DP175 gas cylinder is equivalent to more than 18 times the gas storage capacity of a standard high-pressure gas cylinder.

(5) The internal pressure of the gas cylinder will rise during the deactivation stage after filling. The gas cylinder has a high-performance insulation system and its pressure rise rate is low. Under normal circumstances, there is no need to reduce the pressure through a safety valve.

(6) The built-in supercharger and vaporizer can realize continuous supply of gas or liquid, and there is no need to install an external gas vaporizer under the design consumption.