Composite flooded evaporator and refrigeration device
A flooded evaporator, composite technology, applied in the direction of evaporator/condenser, refrigerator, refrigeration components, etc., can solve the problems of reducing the height of the liquid column, shrinking, overly large, etc., to achieve static height reduction, heat exchange The effect of area reduction and charge reduction
Inactive Publication Date: 2021-01-22
NANJING NORMAL UNIVERSITY
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Problems solved by technology
[0004] Purpose of the invention: In view of the deficiencies in the prior art, one of the purposes of the present invention is to provide a composite flooded evaporator, which can not only solve the problems of local overheating and large design area of the dry evaporator, but also greatly Reduce the number of heat exchange tubes of the tube cluster in the flooded evaporator, thereby reducing the volume of the flooded evaporator, and then reducing the height of the liquid column and reducing the charge of the refrigerant; the second purpose of the present invention is A refrigeration device based on a composite flooded evaporator is provided
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[0019] The present invention will be further described in detail below in conjunction with the examples.
[0020] Such as figure 1 Shown is a schematic structural view of the composite flooded evaporator of the present invention, which mainly includes: a cylinder body 601, a mist catcher 602, a front end cover 603 and a rear end cover 604 arranged on the cylinder body 601, and a chilled water inlet 605 , chilled water outlet 606, partition 607, refrigerant distributor 608, refrigerant collector 609, tube clusters, refrigerant liquid inlet 613 and refrigerant gas outlet 614, etc., the refrigerant liquid inlet 613 and refrigerant gas outlet 614 are arranged above the cylinder 601 Location. The structures not shown in the figure are all prior art.
[0021] Wherein, the tube cluster is located in the lower area of the cylinder body 601 and is composed of a casing array and a U-shaped joint 612; the casing array is formed by a plurality of casings, and the U-shaped joint 612 co...
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The invention discloses a composite flooded evaporator and a refrigeration device. The composite flooded evaporator comprises a cylinder body, a mist eliminator, a front end cover, a rear end cover, achilled water inlet, a chilled water outlet, a partition plate, a refrigerant distributor, a refrigerant collector, a pipe bundle, a refrigerant liquid inlet, a refrigerant gas outlet and the like. According to the composite flooded evaporator and the refrigeration device, the size of a heat exchanger can be reduced by about 30%; the refrigerant charge quantity is reduced by about 20%; the staticheight of a refrigerant in a heat exchanger cylinder body is reduced by about 30%; and a total heat exchange area is reduced by about 10%. Therefore, the manufacturing cost of heat exchange equipmentcan be effectively reduced, and the miniaturization of the design of the heat exchange equipment is promoted.
Description
technical field [0001] The invention relates to heat exchange equipment and a refrigeration system, in particular to a heat exchanger and a refrigeration device in a refrigeration and air conditioning system. Background technique [0002] As a commonly used evaporative heat exchange equipment, dry evaporator has been widely used in refrigeration and air conditioning equipment in various industries. In its practical application, there are problems such as two-phase flow stratification, uneven distribution and local overheating during the process of refrigerant flowing in the tube. Increase by 20%-30% on the basis. This approach increases the manufacturing cost of the heat exchanger and does not take advantage of the miniaturization of the evaporator design. [0003] At the same time, flooded evaporators are also commonly used refrigeration components. The water flows in the tubes, the refrigerant evaporates outside the tube cluster, and the outer heat transfer surface is b...
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IPC IPC(8): F25B39/02F25B1/00
CPCF25B39/02F25B1/00F25B2339/0242
Inventor 李应林冯梦丽牛宝联夏学鹰
Owner NANJING NORMAL UNIVERSITY