Directly-discharging low temperature storage tank

Abstract

The invention relates to a low temperature liquid storage transportation device for solving the problem that the higher the use pressure of the current low temperature storage tank is the thicker theinner bag wall is. The device comprises a low temperature storage tank and an inner bag, wherein the lower of the inner bag is arranged with pressurizing tanks, the bottom of the inner bag is arrangedwith two holes, and the holes are connected with the master valves of the two pressurizing tanks respectively; the master valve of the pressurizing tank is connected with an inlet valve of the pressurizing tank through an inlet check valve, a check valve and a pressure relief pipe are fixed between the inlet check valve and the inlet valve of the pressurizing valve, the pressure relief pipes of the two pressurizing tank are connected with a pressure reducing valve through pipes, upper and lower floaters in the pressurizing tank are connected with an inlet valve and an outlet valve of the pressurizing tank respectively, the upper and lower floaters are connected by a connection rod, the outlet valve is connected with an outlet adjusting valve by a pipe, an outlet distribution valve is fixed between the two outlet adjusting valves, and a valve block is fixed in the outlet distribution valve; and the outlet valve of the pressurizing tank is connected with the pressurizing tank through the pressurizing adjusting valve and a booster with pipes. The device achieves the purpose of low temperature storage and high pressure use.

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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