Cryogenic tank

Abstract

The invention relates to cryogenic liquid storage and transportation equipment, which is designed 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, wherein two pairs of condensing tanks and booster jars are arranged below the inner container and two holes at the bottom of the inner container are connected with liquid inlet main valves of the two condensing tanks through pipes; the condensing tanks are connected with inlet valves of booster jars with pipes; cam connecting rods are arranged above the inlet valves; condensers are arranged inside the condensing tanks; pressure relief pipes connected with air release valves at the tops of the booster jars are communicated with the nonadjacent condensing tanks through check valves; upper floaters and lower floaters connected by floater connecting rods in the booster jars are respectively connected with air release valves and the outlet valves; outlet valve bodies holding the outlet valves of the booster jars are connected with outlet regulating valves with pipes; an outlet distribution valve is arranged between the outlet regulating valves of the two booster jars, wherein a valve block is arranged inside outlet distribution valve; and the outlet valve bodies of the booster jars are connected with the booster jars with pipes through the booster regulating valves and boosters. The invention has the advantages of achieving the purposes of storing at lowpressure and using at high pressure.

Description

Technical field: [0001] The invention relates to a cryogenic liquid storage and transportation equipment Background technique: [0002] At present, the design and production of low-temperature storage tanks adopt the method of storage capacity + 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 higher the operating pressure, the thicker the inner tank wall thickness, and the corresponding increase in the inner tank weight. ;Because the liner is made of austenitic stainless steel, the price of the material is very high, and the liner is the main cost of the low-temperature storage tank. Therefore, with the increase of the use pressure, the manufacturing cost of the low-temperature storage tank will rise sharply, increasing the number of customers equipment investment cost. The application number 200620158354.X that I originally applied for is that the low-pressure storage and ...

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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