Novel parallel flow heat exchanger with flow separating structure
A parallel flow heat exchanger, a new type of technology, applied in the direction of heat exchanger shell, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of high production technology requirements, unfavorable product promotion and application, and difficulty in reducing production costs , to achieve the effect of simplifying the shunt structure and production process, simple structure, and reduced scrap rate
Active Publication Date: 2012-10-17
浙江新金宸机械有限公司
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Problems solved by technology
These shunt structures can play the role of evenly distributing the medium, but the structure is still very complicated, and the requirements for production technology are also high, and waste products are easy to be produced, which makes it difficult to reduce the production cost, which is not conducive to the popularization and application of products
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[0009] Example: see figure 1 , the parallel flow heat exchanger of the present invention includes a pair of headers parallel to each other and separated from each other. The flat tubes 2 that communicate with the inner cavity of the liquid pipe 1 and the liquid collection pipe and are parallel to each other have fins 3 between adjacent flat pipes 2, wherein a medium inlet 8 is provided on the wall of the liquid pipe 1, Both sides of the medium inlet 8 are provided with partitions 4 in the liquid distribution pipe. Between the two partitions 4 is an injection chamber 5. On both sides of the two partitions 4 are expansion chambers 6. Usually, the span of the injection chamber 5 is 1~ There are 2 flat tubes, the span of the expansion chamber 6 is 10-15 flat tubes, and the overflow hole 7 on the separator 4 communicates with the injection chamber 5 and the expansion chamber 6 . If the size of the liquid pipe is longer and the number of flat pipes is larger, it may be considered t...
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The invention relates to a novel parallel flow heat exchanger with a flow separating structure. The heat exchanger comprises a pair of flow collecting pipes which is parallel to and separated from each other, and a plurality of flat pipes which are parallel to one another, wherein the flow collecting pipe on one side is used as a liquid separating pipe, and the flow collecting pipe on the other side is used as a liquid collecting pipe; the two ends of each flat pipe are respectively communicated with inner cavities of the liquid separating pipe and the liquid collecting pipe; fins are arranged among adjacent flat pipes; at least one medium inlet is formed on the wall of the liquid separating pipe; clapboards are arranged on the two sides of the medium inlet in the liquid separating pipe; a jet cavity is formed between the two clapboards; expansion cavities are formed on the two sides of the two clapboards; the span length of the jet cavity is smaller than that of the expansion cavities; and the jet cavity and the expansion cavities are communicated through overflow holes in the clapboards. The two clapboards with the overflow holes separate the liquid separating pipe into the jet cavity and the expansion cavities, so that the flow separating structure and a production process of the flow collecting pipes are greatly simplified, the requirement on a production technology is reduced, rejection rate and production cost are reduced, and the popularization and application of a product are facilitated.
Description
technical field [0001] The invention belongs to the technical field of parallel flow heat exchangers, and in particular relates to a novel parallel flow heat exchanger with a split flow structure. Background technique [0002] Parallel flow heat exchanger is a device that realizes heat transfer between hot and cold fluids, and is widely used in HVAC and other fields. Parallel flow heat exchangers generally include two headers parallel to each other, a number of substantially parallel flat tubes for heat dissipation are arranged between the two headers, and fins for heat dissipation are brazed between adjacent flat tubes. When working, the medium flows along the flat tubes between the headers in the design direction. While flowing, it exchanges heat with the air blowing through the fins. In order to improve the heat exchange efficiency, the medium must be evenly distributed and flow through each heat sink. Flat tube, which requires a shunt structure in the header. In the pr...
Claims
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IPC IPC(8): F28F9/02
Inventor 董长盛
Owner 浙江新金宸机械有限公司