A spray type active cooling device
An active cooling and spraying technology, applied in the field of space low temperature, can solve problems such as uneven temperature distribution
Active Publication Date: 2015-08-19
XI AN JIAOTONG UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of the uneven temperature distribution of the existing low-temperature storage bin system, and provide a spray-type active cooling device for cooling the wall temperature (especially the bottom wall temperature) of the low-temperature storage bin
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[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0017] see figure 1 , the present invention includes a heat exchanger 3 communicated with the low-temperature refrigerator 8, the heat exchanger 3 is arranged at the outlet of the silo body 1 and communicated with the silo body 1, and a heat exchanger 3 communicated with the heat exchanger 3 is arranged in the silo body 1 Conduit 2, the other end of the conduit 2 is provided with a horizontal annular distributor 4 communicated with the conduit 2 and a guide pipe 6 perpendicular to the horizontal annular distributor 4, the guide pipe 6 is located at the center of the annular distributor 4, and the guide pipe The center line of 6 coincides with the center line of the annular distributor 4 and the conduit 2, the outer edge of the horizontal annular distributor 4 is provided with a circle of annular nozzles 5, and the lower end of the guide pipe 6 is provided wit...
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The invention discloses a spray-type active cooling device. The spray-type active cooling device comprises a cabin body, a heat exchanger which is arranged at an outlet of the cabin body and is communicated with the cabin body, and a liquid pump arranged in the heat exchanger. A conduit communicated with the heat exchanger is arranged in the cabin body. The other end of the conduit is provided with a horizontal circular distributor communicated with the conduit and a guide pipe perpendicular to the horizontal circular distributor. A lower surface of the outer edge of the horizontal circular distributor is provided with a circular nozzle. A lower end of the guide pipe is provided with a guide pipe nozzle. Compared with the traditional spray-type warehouse, the spray-type active cooling device has the advantages that the guide pipe is connected to the center of the horizontal circular distributor so that a part of a subcooled liquid enters into the warehouse bottom, cools the warehouse bottom and well flows on the wall of the warehouse body and thus a blocking zone nearby the wall is reduced; the temperature and the area of a high temperature zone nearby the wall are reduced; low-temperature liquid thermal stratification is inhibited effectively; and low-temperature liquid long-term storage and transport are realized.
Description
technical field [0001] The invention belongs to the technical field of low temperature in space, and in particular relates to a spray-type active cooling device for low-temperature storage of liquid hydrogen in a microgravity space. Background technique [0002] Cryogenic propellant is recognized as the most economical and efficient chemical propellant for entering space and orbital transfer in the future, and it is also the preferred propellant for planetary exploration. In space, the main factor affecting and restricting the evaporation and venting of cryogenic propellants is the microgravity space environment. At the same time, the core of the long-term in-orbit application of cryogenic propellants is how to control the evaporation of propellants. The realization of long-period and low-evaporation-loss cryogenic fluid storage in space systems is one of the key technologies related to future human space exploration. Research in this field has important academic value and e...
Claims
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IPC IPC(8): F17C13/00
Inventor 杨鹏袁肖振王小军徐升华王田刚刘迎文
Owner XI AN JIAOTONG UNIV