Device for improving filling efficiency of liquid oxygen and liquid nitrogen

Abstract

The utility model provides a device for improving liquid oxygen and liquid nitrogen filling efficiency, which comprises a liquid nitrogen storage tank and a liquid oxygen storage tank, the liquid nitrogen storage tank is connected with a filling pump through a valve A, a valve B and a pipeline, the liquid oxygen storage tank is connected with the filling pump through a valve C, a valve D and a pipeline, and the filling pump is connected with a nitrogen / oxygen filling tank car through a check valve, a valve E and a pipeline; a three-way switching valve is arranged between the check valve and the valve E and connected with a liquid nitrogen storage tank through a valve F, a valve G and a pipeline, and an ammonia-alcohol workshop is connected between the valve F and the valve G through a valve H and a pipeline. Rapid filling of liquid nitrogen and liquid oxygen is achieved through the filling pump, gasification waste of the liquid nitrogen and the liquid oxygen is reduced, the filling efficiency is improved, and high efficiency, stability and safety are achieved.

Description

Technical Field

[0001] The utility model relates to the field of liquid oxygen and liquid nitrogen filling technology processing, and in particular to a device for improving the liquid oxygen and liquid nitrogen filling efficiency. Background Art

[0002] Oxygen, a chemical used in medicine and industry, and nitrogen, a commonly used inert gas, are seeing increasing demand due to the optimistic market outlook for liquid oxygen and nitrogen. Existing filling equipment suffers from poor accuracy, long filling times, high product vaporization rates, significant waste, reduced utilization, and difficulty controlling fill volumes, making it impossible to safely and quickly meet customer needs. Furthermore, when cooling capacity is insufficient in the post-processing ammonia workshop, the existing tank return route, which uses a vaporizer for pressurization, results in significant waste and high controllable risks. Utility Model Content

[0003] The utility model proposes a device for improving the filling efficiency of liquid oxygen and liquid nitrogen, which realizes rapid filling of liquid nitrogen and liquid oxygen through a filling pump, reduces the waste of liquid nitrogen and liquid oxygen vaporization, improves the filling efficiency, and is efficient, stable and safe.

[0004] The specific plan is as follows:

[0005] A device for improving the filling efficiency of liquid oxygen and liquid nitrogen comprises a liquid nitrogen storage tank and a liquid oxygen storage tank. The liquid nitrogen storage tank is connected to a filling pump via valve A, valve B and a pipeline. The liquid oxygen storage tank is connected to the filling pump via valve C, valve D and a pipeline. The filling pump is connected to a nitrogen / oxygen filling tank truck via a check valve, valve E and a pipeline. A three-way switching valve is provided between the check valve and valve E, and the device is connected to the liquid nitrogen storage tank via valves F, valve G and a pipeline. The valves F and valve G are connected to an ammonia workshop via valve H and a pipeline.

[0006] The middle of valves A and B and the middle of valves C and D are connected through valve I and pipelines. When the liquid nitrogen storage tank is repaired, the liquid oxygen in the liquid oxygen storage tank is completely filled into the filling tank truck, and the empty liquid oxygen storage tank can be used to hold the liquid nitrogen in the liquid nitrogen storage tank.

[0007] A pressure gauge is provided on the rear end pipeline of the filling pump.

[0008] The utility model realizes rapid filling of liquid nitrogen and liquid oxygen through a filling pump, reduces the waste of liquid nitrogen and liquid oxygen vaporization, improves filling efficiency, and is efficient, stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 .Schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0010] like Figure 1As shown, a device for improving the filling efficiency of liquid oxygen and liquid nitrogen includes a liquid nitrogen storage tank 1 and a liquid oxygen storage tank 2. The liquid nitrogen storage tank is connected to a filling pump 5 through a valve A3, a valve B4 and a pipeline. The liquid oxygen storage tank 2 is connected to the filling pump 5 through a valve C6, a valve D7 and a pipeline. The filling pump 5 is connected to a nitrogen / oxygen filling tank truck 10 through a check valve 17, a valve E9 and a pipeline. A three-way switching valve 8 is provided between the check valve 17 and the valve E9, and is connected to the liquid nitrogen storage tank 1 through a valve F11, a valve G13 and a pipeline. The valves F11 and G13 are connected to an ammonia workshop 14 through a valve H12 and a pipeline.

[0011] The valves A3 and B4 are connected to the valves C6 and D7 through valve I16 and pipelines. When the liquid nitrogen storage tank 1 is repaired, the liquid oxygen in the liquid oxygen storage tank 2 is completely filled into the filling tank truck 10, and the empty liquid oxygen storage tank 2 can be used to hold the liquid nitrogen in the liquid nitrogen storage tank 1.

[0012] A pressure gauge 15 is provided on the rear end pipeline of the filling pump 5 .

[0013] Liquid oxygen filling process: Open valve C6 and valve D7, close valve A3, valve B4, valve I16, valve F11, valve G13, open filling pump 5 and valve E9, so that the liquid oxygen in liquid oxygen storage tank 2 passes through valve C6, valve D7, filling pump 5, check valve 17, three-way switching valve 8, valve E9, and is filled into filling tank truck 10;

[0014] Liquid nitrogen filling process: Open valve A3 and valve B4, close valve C6, valve D7, valve I16, valve 11F, valve G13, open the filling pump 5 and valve E9, so that the liquid nitrogen in the liquid nitrogen storage tank 1 passes through valve A3, valve B4, filling pump 5, check valve 17, three-way switching valve 8, valve E9, and is filled into the filling tank truck 10;

[0015] Return process: After the liquid nitrogen filling process is completed, the liquid nitrogen in the pipeline can be returned to the liquid nitrogen storage tank 1 through the filling pump 5. Close valve E9, switch the three-way switching valve 8, open valve F11 and valve G13, and close valve H12 to achieve liquid nitrogen return.

[0016] Nitrogen for the ammonia and alcohol workshop: open valve A3 and valve B4, close valve C6, valve D7, valve I16, valve E9, valve G13, open the filling pump 5, valve F11, and valve H12, so that the liquid nitrogen in the liquid nitrogen storage tank 1 passes through valve A3, valve B4, filling pump 5, check valve 17, three-way switching valve 8, valve F11, and valve H12 and is transmitted to the ammonia and alcohol workshop 14.

[0017] The empty liquid oxygen storage tank 2 is replaced with liquid nitrogen: open valves A3, C6, and I16, and close valves B4 and D7. As the liquid nitrogen in the liquid nitrogen storage tank 1 vaporizes, it flows along valves A3, I16, and C6 and is replaced into the liquid oxygen storage tank 2.

[0018] The above description is only a part of the preferred embodiments of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A device for improving the filling efficiency of liquid oxygen and liquid nitrogen, characterized in that: It includes a liquid nitrogen storage tank and a liquid oxygen storage tank. The liquid nitrogen storage tank is connected to the filling pump through valve A, valve B and pipelines. The liquid oxygen storage tank is connected to the filling pump through valve C, valve D and pipelines. The filling pump is connected to the nitrogen / oxygen filling tank truck through a check valve, valve E and pipelines. A three-way switching valve is installed between the check valve and valve E, and is connected to the liquid nitrogen storage tank through valves F, valve G and pipelines. Valves F and valve G are connected to the ammonia workshop through valve H and pipelines.

2. The device for improving liquid oxygen and liquid nitrogen filling efficiency according to claim 1, characterized in that: The middle of valve A and valve B and the middle of valve C and valve D are connected through valve I and pipelines.

3. The device for improving liquid oxygen and liquid nitrogen filling efficiency according to claim 1, characterized in that: A pressure gauge is provided on the rear end pipeline of the filling pump.

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