A low-pressure storage and high-pressure delivery and supply low-temperature storage tank device

Abstract

The invention relates to cryogenic liquid storage and transportation equipment. It is mainly designed to solve the problem that the higher the pressure of the current low-temperature storage tank, the thicker the wall thickness of the inner tank. It includes a low-temperature storage tank and an inner tank. There are two condensation tanks and a booster tank under the inner tank. There are two holes at the bottom of the inner tank that are respectively connected to the main liquid inlet valves of the two condensation tanks. The outlet valve of the condensation tank passes through a check valve and The pressure relief pipe is connected to the inlet valve of the booster tank, and the pressure relief pipe of each booster tank is connected to the condenser in the condensation tank above the other booster tank, and the upper and lower floats in the booster tank are connected to the inlet valve of the booster tank respectively. It is connected with the outlet valve, the upper and lower floats are connected by a float connecting rod, the outlet valve body is connected with the outlet regulating valve through a pipeline, and there is an outlet distribution valve between the outlet regulating valves under the two pressurized tanks; there is a valve block in the outlet of the pressurized tank. The valve body is connected with the booster regulating valve by a pipeline, and the booster regulating valve is connected with the top of the booster tank through the supercharger. The advantage is that the purpose of low-pressure storage and high-pressure use is realized.

Description

Technical field: [0001] The invention relates to 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 h...

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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