Cryogenic jet pump platform

Abstract

The invention provides a low-temperature injection pump platform which comprises an air reservoir, an inlet flow meter, a heat-exchange coil, a liquid nitrogen groove, a cold box, an injection pump, aliquid nitrogen liquid bag, a vaporizer and an outlet flow meter; the air reservoir is connected with one end of the inlet flow meter through a pipeline; the other end of the inlet flow meter is connected with one end of the heat-exchange coil through a pipeline; the heat-exchange coil is soaked in the liquid nitrogen groove; the other end of the heat-exchange coil is connected with the working flow inlet end of the injection pump through a pipeline; the motive flow inlet end of the injection pump is connected with the lower end of the liquid nitrogen liquid bag through a pipeline; the mixedflow outlet end of the injection pump is connected with one end of the vaporizer through a pipeline; and the other end of the vaporizer is connected with the outlet flow meter through a pipeline. Withthe adoption of the low-temperature injection pump platform, performance tests and experiments on the low-temperature injection pump at different temperatures and pressure can be carried out, the low-temperature injection pumps of different models and sizes are tested conveniently, the test preparation cycle is short, the cost is low, and a long and stable test is realized.

Description

technical field

[0001] The invention relates to cryogenic refrigeration, in particular to a cryogenic jet pump platform. Background technique

[0002] With the continuous development of technology in the field of cryogenics, the demand for cryogenic equipment continues to increase in many fields including aerospace, nuclear energy research, medical equipment, and scientific engineering. In the process of creating a low-temperature environment, users' requirements for cooling capacity are also continuously increasing. In terms of existing fixed-type refrigerators, especially large-scale low-temperature refrigerators and liquefiers, the power provided by the cooling capacity is relatively fixed, and the adjustment range is relatively small, so there will be loss of cooling capacity when the cooling capacity is redundant during actual use. The situation and the situation that the cooling requirement cannot be achieved when the cooling capacity is insufficient, this situation g...

Examples

Embodiment 1

[0026] see figure 1 , is a schematic structural diagram 10 of the cryogenic jet pump platform provided in Embodiment 1 of the present invention, including: gas storage 110, inlet flowmeter 120, heat exchange coil 130, liquid nitrogen tank 140, cold box 150, jet pump 160, liquid nitrogen Liquid bag 170, vaporizer 180 and outlet flowmeter 190. The jet pump 160 and the liquid nitrogen bag 170 are disposed in the cold box 150 . How it works is detailed below.

[0027] The gas storage 110 is connected to one end of the inlet flowmeter 120 through a pipeline, and the other end of the inlet flowmeter 120 is connected to one end of the heat exchange coil 130 through a pipeline, and the heat exchange coil 130 is immersed in the In the liquid nitrogen tank 140, the other end of the heat exchange coil 130 is connected to the working flow inlet port a of the jet pump 160 through a pipeline, and the jet flow inlet port c of the jet pump 160 is connected to the liquid nitrogen liquid thro...

Embodiment 2

[0038] see figure 2 , is a schematic structural diagram 20 of the cryogenic jet pump platform provided by Embodiment 2 of the present invention.

[0039] The difference from Embodiment 1 is that the cryogenic jet pump platform provided in this embodiment also includes a multi-valve group heat exchange control pipe 210, and one end of the multi-valve group heat exchange control pipe 210 is connected to the heat exchange coil 130 , the multi-valve group heat exchange control pipe 210 can adjust the working temperature of the heat exchange coil 130, the other end of the multi-valve group heat exchange control pipe 210 is connected to the working flow inlet port of the jet pump 160 a is connected.

[0040]It can be understood that since the heat exchange coil 130 is immersed in the liquid nitrogen tank 140, the working temperature of the heat exchange coil 130 can be adjusted through the temperature of the liquid nitrogen working flow in the liquid nitrogen tank 140; The switch...

technical field

[0001] The invention relates to cryogenic refrigeration, in particular to a cryogenic jet pump platform. Background technique

[0002] With the continuous development of technology in the field of cryogenics, the demand for cryogenic equipment continues to increase in many fields including aerospace, nuclear energy research, medical equipment, and scientific engineering. In the process of creating a low-temperature environment, users' requirements for cooling capacity are also continuously increasing. In terms of existing fixed-type refrigerators, especially large-scale low-temperature refrigerators and liquefiers, the power provided by the cooling capacity is relatively fixed, and the adjustment range is relatively small, so there will be loss of cooling capacity when the cooling capacity is redundant during actual use. The situation and the situation that the cooling requirement cannot be achieved when the cooling capacity is insufficient, this situation g...

Examples

Embodiment 1

[0026] see figure 1 , is a schematic structural diagram 10 of the cryogenic jet pump platform provided in Embodiment 1 of the present invention, including: gas storage 110, inlet flowmeter 120, heat exchange coil 130, liquid nitrogen tank 140, cold box 150, jet pump 160, liquid nitrogen Liquid bag 170, vaporizer 180 and outlet flowmeter 190. The jet pump 160 and the liquid nitrogen bag 170 are disposed in the cold box 150 . How it works is detailed below.

[0027] The gas storage 110 is connected to one end of the inlet flowmeter 120 through a pipeline, and the other end of the inlet flowmeter 120 is connected to one end of the heat exchange coil 130 through a pipeline, and the heat exchange coil 130 is immersed in the In the liquid nitrogen tank 140, the other end of the heat exchange coil 130 is connected to the working flow inlet port a of the jet pump 160 through a pipeline, and the jet flow inlet port c of the jet pump 160 is connected to the liquid nitrogen liquid thro...

Embodiment 2

[0038] see figure 2 , is a schematic structural diagram 20 of the cryogenic jet pump platform provided by Embodiment 2 of the present invention.

[0039] The difference from Embodiment 1 is that the cryogenic jet pump platform provided in this embodiment also includes a multi-valve group heat exchange control pipe 210, and one end of the multi-valve group heat exchange control pipe 210 is connected to the heat exchange coil 130 , the multi-valve group heat exchange control pipe 210 can adjust the working temperature of the heat exchange coil 130, the other end of the multi-valve group heat exchange control pipe 210 is connected to the working flow inlet port of the jet pump 160 a is connected.

[0040]It can be understood that since the heat exchange coil 130 is immersed in the liquid nitrogen tank 140, the working temperature of the heat exchange coil 130 can be adjusted through the temperature of the liquid nitrogen working flow in the liquid nitrogen tank 140; The switch...

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