Welded plate type heat exchanger

A technology of heat exchangers and welded plates, which is applied in the direction of indirect heat exchangers, heat exchanger types, fixed plate conduit components, etc., can solve problems such as poor fluidity and limited application range, and achieve reduced production costs and anti-oxidation Enhanced performance and enhanced corrosion resistance

Active Publication Date: 2009-03-25
辽宁远大换热装备(集团)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it cannot meet the heat exchange requirements of some special high temperature, viscous or

Method used

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  • Welded plate type heat exchanger
  • Welded plate type heat exchanger
  • Welded plate type heat exchanger

Examples

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Example Embodiment

[0021] figure 1 , figure 2 , image 3 The main structure of the present invention is shown. The welded plate heat exchanger includes a frame 7 and legs 15 located at the bottom of the frame 7. The upper and lower parts of the frame 7 are respectively provided with heads 1, and the heads 1 are respectively provided with medium II The inlet or outlet 16, the head 1 is also provided with an exhaust port 2 or a sewage outlet 14, respectively, a movable plate 8 and a fixed plate 12 are provided in the middle of the frame 7, and the upper and lower parts of the movable plate 8 are respectively provided with a collecting box 13, Weld the inlet or outlet 6 of the medium I on the assembly box. The head 1, the movable plate 8, and the fixed plate 12 are connected to the frame 7 through the connection method: flange 5, gasket 4, gasket 10 and bolt 3, bolt 11 A heat exchanger box is formed, and a heat exchange plate bundle 9 is arranged inside the heat exchanger box. The heat exchange plat...

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Abstract

The invention discloses a welded plate type heat exchanger, which comprises a frame and support legs, wherein the upper part and the lower part of the frame are provided with an end closure respectively provided with a medium II inlet or outlet and an air exhaust port or a drain, the middle part of the frame is provided with a movable plate and a fixing plate, the upper part and the lower part of the movable plate are provided with a collection box respectively, and the collection box is welded with a medium I inlet or outlet; an upper end closure, a lower end enclosure, the movable plate and the fixing plate are in sealing connection with the frame by connecting square flanges, gasket seals and bolts so as to form a heat exchanger box body, the inner part of the heat exchanger box body is provided with a heat exchange plate bundle, the heat exchange plate bundle is formed by the stacking of plate groups formed by the welding of the heat exchange plates, medium I flow passages are formed in the plate groups, and medium II flow passages are formed between the adjacent plate groups; the heat exchange plates are made by the punching of carbon steel or stainless steel; and the both surfaces of the heat exchange plates are provided with aluminizing diffusion layers. The heat exchanger has the advantages of higher bearing operation temperature and better corrosion resistance.

Description

technical field [0001] The invention relates to a heat exchanger, especially a plate heat exchanger. Background technique [0002] In recent decades, the increasing shortage of energy has favorably promoted the development of energy-saving technology for heat exchangers. Among many heat exchange equipment technologies, in terms of thermal energy effect and heat transfer coefficient, the optimal choice is the plate heat exchanger, which has a high heat transfer efficiency, which is 2.5 times that of the tube heat exchanger and 2.5 times that of the spiral plate heat exchanger. times, it is deeply loved by users, but ordinary plate heat exchangers use rubber seals, with a pressure resistance of ≤1.6MPa and a temperature resistance of ≤140°C. In addition, because rubber seals will release harmful substances under the action of high temperature, it is restricted The use of this plate heat exchanger in the food industry is limited, and its application field is limited. In recen...

Claims

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Application Information

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IPC IPC(8): F28D9/00
Inventor 李英军李道义刘春
Owner 辽宁远大换热装备(集团)有限公司
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