Cryogenic tank

Abstract

The invention relates to cryogenic liquid storage and transportation equipment, which is designed mainly to solve the current problem that the higher the pressure used in a cryogenic tank, the thicker an inner container wall. The cryogenic liquid storage and transportation equipment comprises the cryogenic tank and the inner container in which two condensing tanks are arranged; outlet valves of the condensing tanks are communicated to the inner container and the outside of the cryogenic tank through pipes and are respectively connected with inlet valves of booster jars inside a heat preserving shell through main valves of the booster jars; pressure relief pipes and check valves are arranged between the main valves of the booster jars and the inlet valves of the booster jars, wherein a pressure relief pipe of one booster jar is connected with a condensers inside the condensing tank above the other booster jar; an upper floater and a lower floater in each booster jar are respectively connected with the inlet valve and the outlet valve of the booster jar, wherein the upper floater and the lower floater are connected by a floater connecting rod; outlet valve bodies are connected with outlet regulating valves with pipes; a valve block is arranged in an outlet distribution valve between the outlet regulating valves of the two booster jars; and the outlet valve bodies of the booster jars are connected with the booster jars with pipes through booster regulating valves and boosters. The invention has the advantage of achieving the purposes of storing at low pressure and using at high pressure.

Description

Technical field: [0001] The invention relates to a cryogenic liquid storage and transportation equipment. Background technique: [0002] The current design and production of cryogenic storage tanks use the storage volume + use pressure to determine the thickness of the tank’s inner tank. When the volume is constant (a certain diameter), the higher the use pressure, the thicker the wall thickness of the tank, and the corresponding weight of the tank increases. ; Because the inner tank is made of austenitic stainless steel, the material price is very high, and the inner tank is the main cost of the low-temperature storage tank, so as the use pressure increases, the manufacturing cost of the low-temperature storage tank increases sharply, increasing customers Cost of equipment investment. My original application number is 200620158354.X. The low-pressure storage and high-pressure low-temperature storage tank for high-pressure transmission has a pressure relief pipe spiraling in the...

AI Technical Summary

Problems solved by technology

[0002]The design and production of the current cryogenic storage tank adopts the method of storage volume + operating pressure to determine the wall thickness of the inner tank of the storage tank. When the volume is constant (the diameter is constant), the operating pressure The higher the wall thickness of the inner tank is, the greater the weight of the inner tank will be. Since the inner tank is made of austenitic stainless steel, the price of the material is very high, and the inner tank is the main cost of the low-temperature storage tank. As the height increases, the manufacturing cost of the cryogenic storage tank will rise sharply, which will increase the customer's equipment investment cost

The application number I originally applied for is 200620158354.X. The low-pressure storage and high-pressure transmission and supply low-temperature storage tank is a pressure relief pipe that hovers in the booster tank to cool down the gas discharged from the booster tank. The disadvantage is that the cooling effect is poor and the liquefaction is not complete.

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