High-pressure high-flow microgravity centrifugal gas and liquid separation device
A gas-liquid separation device and high-flow technology, applied in centrifuges and other directions, can solve the problems of difficulty in meeting the requirements for water separation of high-power regenerative fuel cells in space and small water separation capacity, and achieve good gas-liquid separation performance and liquid treatment. The effect of strong ability and wide range of work pressure adaptation
Active Publication Date: 2016-06-08
BEIJING AEROSPACE PROPULSION INST
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Problems solved by technology
For example, a static water separator was developed for my country's manned spaceflight regenerative bio-protection electrolysis oxygen production system. The water separation capacity is as small as 4-6L / h, which is difficult to meet the water separation requirements of the space high-power regenerative fuel cell electrolysis process.
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as figure 1 As shown, a high-pressure and large-flow microgravity centrifugal gas-liquid separation device includes a drive motor 1 , a pressure-resistant casing 2 , a separation impeller 3 , a pitot tube 4 , a cage 5 , and a back pressure drain valve 6 .
[0031] The driving motor 1 is fixedly arranged under the pressure-resistant shell 2 .
[0032] The pressure-resistant shell 2 is composed of an upper hemispherical shell and a lower hemispherical shell, and the opening cross-section rings of the two hemispherical shells have the same size and shape. The opening sections of the above two hemispherical shells are connected to each other, and are fixed and sealed by flanges. A top channel 16 is provided in the middle of the top of the upper hemispherical shell, a mixture inlet 12 is provided at a position close to the above-mentio...
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The invention relates to the field of gas and liquid separation, and particularly discloses a high-pressure high-flow microgravity centrifugal gas and liquid separation device. Specifically, a driving motor of a shield structure is adopted, and effective seal of gas under a high-pressure working condition is ensured; a shielding gasket and a boss structure are arranged on a separation impeller, and therefore the phenomenon that liquid is drained out along with gas is effectively avoided; a backpressure feedback connector of a liquid draining valve is connected with a mixture inlet in a pressure-resisting shell, and therefore the influence of absolute work pressure is effectively shielded; the liquid draining valve is opened and closed through the pressure difference, a movable seal structure is adopted in a valve element, the water draining opening degree is effectively improved, a liquid path flow area is effectively increased, and the water draining capacity is improved; and according to the technical scheme that the recycling treatment capacity of gas-state and liquid-state water is larger than 280 L / h, the device can be suitable for the large-range variation working condition of the work pressure, ranging from 0.1 MPa.a to 5 MPa.a, of electrolysis of a regenerative fuel cell energy storage system, the gas containing proportion of an incoming flow ranges from 0% to 100%, and efficient gas and liquid separation can be achieved.
Description
technical field [0001] The invention belongs to the field of gas-liquid separation, and in particular relates to a high-pressure and large-flow microgravity centrifugal gas-liquid separation device. Background technique [0002] When the main power supply is working, the regenerative fuel cell stores the excess electrical energy in the hydrogen and oxygen chemical system through the electrolysis of water, and at night when the solar energy (or other energy sources) is missing, the hydrogen and oxygen are fed into the fuel cell for external power supply. The regenerative fuel cell energy storage system has the characteristics of high specific energy, low limit of charge and discharge times and depth, no pollution, zero emission and so on. Regenerative fuel cell energy storage systems have broad application prospects for spacecraft with high specific energy requirements. [0003] Regenerative fuel cells use water as the energy storage medium to store space solar energy and re...
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Login to View More IPC IPC(8): B04B5/12B04B7/02B04B15/00
CPCB04B5/12B04B7/02B04B15/00
Inventor 张亚孙凤焕陈红刘丞旭王国文
Owner BEIJING AEROSPACE PROPULSION INST