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Supercooling test system and cryogenic centrifugal pump test system

A test system and centrifugal pump technology, applied in the direction of pumps, pump control, pump components, etc., can solve the problems of long processing cycle and high manufacturing cost of sealed Dewar, and achieve the effect of low cost, convenient manufacturing and simple structure

Active Publication Date: 2016-11-30
北京中科富海低温科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this method in the prior art has the following problems: the manufacturing cost of the sealed Dewar that can withstand internal pressure is relatively high, and the processing cycle is relatively long

Method used

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  • Supercooling test system and cryogenic centrifugal pump test system
  • Supercooling test system and cryogenic centrifugal pump test system

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] see figure 1 , the first embodiment of the present invention provides a subcooling test system 100, which includes a pressurized cavity 101, a heat exchange coil 102, a throttle orifice 103, a liquid inlet valve 104, a pressurized gas cylinder 105, and a gas cylinder outlet Pressure reducing valve 106, intake valve 107, exhaust valve 108, safety valve 109 and open Dewar 110. The pressurized cavity 101, the heat exchange coil 102 and the throttle hole 103 are all placed under the liquid surface of the low-temperature liquid in the open Dewar 110, figure 1 The dotted line in the middle indicates the liquid level of the low-temperature liquid in the open Dewar 110; the pressurized cylinder 105 is connected to the pressurized chamber 101, and the inlet of the pressurized chamber 101 is connected to the heat exchange coil 102, the ...

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Abstract

The present invention proposes a supercooling test system (100), which includes a pressurized gas cylinder (105), an open Dewar (110) and a booster placed below the surface of the cryogenic liquid in the open Dewar (110). The pressure chamber (101), the heat exchange coil (102) and the orifice (103), the pressurized gas cylinder (105) is connected to the pressurized chamber (101), the inlet sequence of the pressurized chamber (101) Connect the heat exchange coil (102), the throttle hole (103) and the outlet of the low-temperature centrifugal pump (200) to be tested, and the outlet of the booster chamber (101) is connected to the inlet of the low-temperature centrifugal pump (200) to be tested. The supercooling test system is convenient to manufacture, simple in structure and low in cost. The invention additionally provides a low-temperature centrifugal pump test system.

Description

technical field [0001] The invention relates to the field of low temperature technology, in particular to a supercooling test system and a low temperature centrifugal pump test system. Background technique [0002] For cryogenic centrifugal pumps, the pressure at the inlet of the cryogenic centrifugal pump will be lower than the back pressure of the test system due to suction during operation. When the temperature is below the saturation pressure of the pumped liquid, and the heat leakage of the liquid delivery pipeline will cause the liquid to vaporize, which will seriously affect the normal operation of the cryogenic centrifugal pump and the measurement of the operating parameters of the cryogenic centrifugal pump. [0003] If the inlet pressure of the cryogenic centrifugal pump can be increased and the influence of heat leakage in the liquid delivery pipeline can be reduced, the measurement of pump performance will be greatly facilitated. In the prior art, one method is ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D15/00F04D29/58
Inventor 李青师翔龙伍继浩邵雪周刚
Owner 北京中科富海低温科技有限公司