Product Category
Ventilation method of cryogenic storage tank
Date: Mar 09, 2020
Before using cryogenic liquid storage tanks for the first time, replace them with gas and purge the air in the pipes and storage tanks with nitrogen. Open the booster input valve to increase the pressure in the cryogenic tank. If an emergency is found, open the vent valve to relieve pressure. In working condition, once the storage tank is overpressured, it can be released through safety valve and bursting disc.
With reference to the level comparison table, the actual loading of the storage tank can be read based on the reading of the level gauge. According to the pressure gauge, the working pressure of the storage tank can be read. If the temperature of the low-temperature storage tank rises during the maintenance or operation of the storage tank, the abnormality can be measured by a vacuum thermocouple gauge.
It is understood that the cryogenic storage tank adopts vacuum insulation, and the thermal insulation material is pearlescent sand. The top filling liquid is designed with a porous leaching structure, which can stabilize the cryogenic liquid when filling the inner container. In addition, a part of the gas in the inner container can be absorbed and liquefied at a low temperature, and the relative stability of the gas phase pressure of the inner container is maintained during the filling process. 
The support structure between the inner tank and the outer shell of the cryogenic storage tank adopts an upper stainless steel drawstring and a lower stainless steel tube support method. In the normal working position of the equipment, the gravity load of the liner and its storage medium is transmitted to the casing through 3 stainless steel pipes, and then to the legs of the casing and the equipment foundation to avoid generating additional eccentric moment loads. This structure also guarantees the device's need for the liner to shrink freely at low temperatures.
The cryogenic storage tank is led out from the center of the lower end of the water tank for easy operation and maintenance. In order to ensure that the storage tank can stably and safely store cryogenic liquids, the storage tank is equipped with a variety of safety devices and instruments: equipped with a level gauge, a pressure gauge and an outer cylinder explosion-proof device, equipped with a liner in addition to the pipeline safety valve, Combined safety system.
With reference to the level comparison table, the actual loading of the storage tank can be read based on the reading of the level gauge. According to the pressure gauge, the working pressure of the storage tank can be read. If the temperature of the low-temperature storage tank rises during the maintenance or operation of the storage tank, the abnormality can be measured by a vacuum thermocouple gauge.
It is understood that the cryogenic storage tank adopts vacuum insulation, and the thermal insulation material is pearlescent sand. The top filling liquid is designed with a porous leaching structure, which can stabilize the cryogenic liquid when filling the inner container. In addition, a part of the gas in the inner container can be absorbed and liquefied at a low temperature, and the relative stability of the gas phase pressure of the inner container is maintained during the filling process.
The cryogenic storage tank is led out from the center of the lower end of the water tank for easy operation and maintenance. In order to ensure that the storage tank can stably and safely store cryogenic liquids, the storage tank is equipped with a variety of safety devices and instruments: equipped with a level gauge, a pressure gauge and an outer cylinder explosion-proof device, equipped with a liner in addition to the pipeline safety valve, Combined safety system.
Send Your Inquiry
We not only provide a good product, but also provide high quality service. If you are interested in our products,
you can contact us in the following ways.
you can contact us in the following ways.
