Plate heat exchanger and plate thereof
A plate heat exchanger and plate technology, which is used in heat exchange equipment, lighting and heating equipment, laminated components, etc., can solve the problems of low heat exchange efficiency, low refrigerant flow rate, and short flow path length.
Inactive Publication Date: 2013-12-04
HANGZHOU SANHUA RES INST CO LTD
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Problems solved by technology
[0007] The flow path of refrigerant between adjacent plates is from top to bottom or from bottom to top along the length of the plates. The overall flow path length is relatively short, and the flow width is the entire width of the plates, so the Under the premise of small flow rate, the flow rate of refrigerant between adjacent plates is low, resulting in low heat exchange efficiency
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[0058] The core of the present invention is to provide a plate of a plate heat exchanger. The structural design of the plate can extend the length of the flow path of the refrigerant and shorten the width of the flow path of the refrigerant on the premise that the overall size of the plate remains unchanged, thereby enabling Increase the flow rate of the refrigerant, thereby improving the heat exchange efficiency. In addition, another core of the present invention is to provide several types of plate heat exchangers comprising the above-mentioned plates.
[0059] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following instructions, the definition of the length direction is: the direction from top to bottom or from bottom to top of each picture is the length direction; ...
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The invention discloses a plate of a plate heat exchanger. The lengthwise first end of the plate is provided with two isolation corner holes (11), and the lengthwise second end of the plate is provided with a corner inlet (12) and a corner outlet (13). A first heat exchange surface (21) of the plate is provided with an isolation projection (213) which divides the first heat exchange surface (21) into a first flow area (211) and a second flow area (212). The corner inlet (12) locates in the first flow area (211). The corner outlet (13) locates in the second flow area (212). The isolation projection (213) extends from the second end to the first end; at the first end, the first heat exchange surface (21) is provided with a communicating passage (214) through which the first flow area (211) and the second flow area (212) is communicated. According to the structural design, the length of a coolant passage is prolonged while the overall size of the plate is unchanged, the width of the coolant passage is reduced, and accordingly flow speed of coolant can be increased and heat exchange efficiency is improved. In addition, the invention discloses the plate heat exchanger comprising the plate.
Description
technical field [0001] The invention relates to the technical field of plate heat exchangers, in particular to a plate of a plate heat exchanger. Furthermore, the invention also relates to a plate heat exchanger comprising the plate. Background technique [0002] Plate heat exchanger is a commonly used heat exchanger, which can be used for water-water heat exchange and water-refrigerant heat exchange. Compared with tube-and-tube heat exchangers and shell-and-tube heat exchangers with the same function, plate heat exchangers have higher heat exchange efficiency, so the heat exchangers are more compact and lighter, and are widely used in refrigeration, air conditioning, Various industries such as chemical industry and water treatment. The basic principle of a plate heat exchanger is to form spaced flow passages between multiple heat exchange plates, and two heat exchange media (usually liquid or liquid-gas two-phase state) pass through the heat exchange plates in the interph...
Claims
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Inventor 高强黄宁杰
Owner HANGZHOU SANHUA RES INST CO LTD