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Pressure bearing type plate heat exchanger

A plate heat exchanger, pressure-bearing technology, applied in the direction of heat exchanger shell, indirect heat exchanger, heat exchanger type, etc., can solve the problems of unsatisfactory pressure bearing effect and increase the pressure of heat exchange plate, so as to avoid The effect of bulging deformation, improving pressure resistance and reducing input cost

Pending Publication Date: 2019-05-31
江苏远卓设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this scheme, a connection device is provided in every other gap between the heat exchange plates, and the connection device and the heat exchange plate connect the fluid inlet and outlet channels into a barrel-shaped whole. During the implementation process, it was found that the processing accuracy of the connection device is extremely high. , must be strictly matched with the width of a single flow channel unit, and after the connection device is actually installed, the fluid in the channel enters the heat exchange flow channel through the "small hole" of the connection device. Compared with the connection device without the installation, It also increases the pressure of the heat exchange plate around the channel, and the pressure bearing effect is not ideal

Method used

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  • Pressure bearing type plate heat exchanger
  • Pressure bearing type plate heat exchanger
  • Pressure bearing type plate heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment relates to a pressure-bearing plate heat exchanger, which includes an upper end plate 3, a lower end plate 4, and a series of heat exchange plates 2 neatly laminated between the upper and lower end plates. The heat exchange channels 15 for the alternating flow of cold / heat medium, each heat exchange plate 2 is provided with four corner holes a, the same corner holes on a series of heat exchange plates are connected through, correspondingly forming a flow path for the flow of cold / heat medium or There are four fluid passages 20 flowing out, and the fluid passages 20 for the cold / heat medium are connected to the respective heat exchange flow passages 15 respectively. The upper end plate 3 is provided with an opening communicating with the fluid passages, and the connection device 1 is fixedly installed at the opening.

[0049] The connecting device 1 includes a connecting head 101 and a connecting seat 102 , a bottom plate 103 is fixed at the bottom of the ...

Embodiment 2

[0058] The structure of the heat exchanger in this embodiment is similar to the heat exchanger in Embodiment 1, the difference is that the nozzle socket of the nozzle device is different, and according to the laminated structure of the heat exchange plates of the plate heat exchanger, the upper and lower adjacent heat exchangers are used The in-out gap between the corner holes of the plate is used to fix the connecting pipe seat, and the welding operation is omitted. The specific difference is that the bottom of the socket 102 is a base plate 103, and the outer edge of the base plate is formed as a chuck 103'. The thickness of the outer edge is twice the corrugation depth of the heat exchange plate. In this way, the chuck 103' can It just snaps into the liquid inlet and outlet gap between the two lowermost corner holes a, and a gap b is opened on the chuck 103' so that the lowermost heat exchange channel can still communicate with the fluid channel.

[0059] The preparation me...

Embodiment 3

[0067] The structure of the heat exchanger in this embodiment is similar to the heat exchanger in Embodiment 1, the difference is that the nozzle sockets of the nozzle device are different, and according to the laminated structure of the heat exchange plates of the plate heat exchanger, the upper and lower adjacent heat exchangers are used The in-out gap between the corner holes of the plate is used to fix the connecting pipe seat, and the welding operation is omitted. The specific difference is that the bottom of the socket 102 is a bottom plate 103, and the outer edge of the bottom plate is formed as a chuck 103', and the thickness of the outer edge is twice the corrugation depth of the heat exchange plate. In this way, the chuck 103' can It just fits into the liquid inlet and outlet gap between the corner holes a of the two heat exchange plates corresponding to the lowermost heat exchange channel, and the chuck 103' has a gap b so that the lowermost heat exchange channel can...

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Abstract

The invention relates to a pressure bearing type plate heat exchanger. The pressure bearing type plate heat exchanger comprises an upper end plate, a lower end plate and a series of heat exchange plates laminated between the upper end plate and the lower end plate in order. Heat exchange runners allowing a cold / heat medium to alternately flow through are formed between the adjacent heat exchange plates, corner holes are formed in each heat exchange plate, the same corner holes a are through to form fluid runners, and the fluid runners correspondingly communicate with the heat exchange runners.The upper end plate is provided with openings communicating with the fluid runners, connecting pipe devices are fixedly mounted at the positions of the openings, the upper ends of the connecting pipedevices are exposed out of the upper end plate, the lower ends of the connecting pipe devices penetrate through the whole fluid runners downwards and are fixedly connected to the lower end plate, andthe connecting pipe devices are provided with runner holes to enable the fluid runners to communicate with the heat exchange runners. The connecting pipe devices share expansive force borne by the main heat exchange plates and the end plates, expansion deformation of the heat exchange plates and the end plates is effectively avoided, and the pressure bearing capacity of the plate heat exchanger is improved overall.

Description

technical field [0001] The invention relates to a plate heat exchanger composed of multi-layer heat exchange plates. The heat exchange plates define mutually interlaced and isolated flow passages for the circulation of cold and heat mediums. Background technique [0002] The plate heat exchanger is the most commonly used heat exchanger in the field of refrigeration and heating, such as air conditioning refrigeration, heat pump heating, etc., in two staggered and mutually isolated flow channels, the evaporation of the refrigerant is used to absorb heat or release it during condensation. A large amount of heat, cooling or heating a second fluid such as water. Refrigerants such as R22\R23 including the latest environmentally friendly refrigerant R410a will cause damage to the earth's ozone layer, allowing high-energy solar particles to pass through the atmosphere to protect the earth and threaten human health. The carbon dioxide refrigerant has no impact on the environment, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F9/22B23K31/02B23K101/14
Inventor 缪君明周浩军
Owner 江苏远卓设备制造有限公司
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