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Circular microchannel wave surface plate heat exchange core body, manufacturing method and heat exchanger

A micro-channel and heat exchanger technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problems of inability to guarantee the heat exchange area and heat exchange, and the reduction of the heat exchange air side area. , to achieve the effect of favorable long-term high-efficiency heat exchange, sufficient heat exchange, and not easy to accumulate dust

Inactive Publication Date: 2019-05-10
徐雅岚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above problems can be solved by canceling the fin structure. In order to ensure the same air-side heat transfer area, the tube spacing of the finless microchannel heat exchanger should be reduced to at least 1 / 4 of the original, but using the existing technology for processing, we get For the finless microchannel heat exchanger, the minimum tube spacing can only be reduced to 1 / 2 of the original, resulting in a significant reduction in the heat exchange air side area, and the same heat exchange area and heat exchange capacity cannot be guaranteed

Method used

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  • Circular microchannel wave surface plate heat exchange core body, manufacturing method and heat exchanger
  • Circular microchannel wave surface plate heat exchange core body, manufacturing method and heat exchanger
  • Circular microchannel wave surface plate heat exchange core body, manufacturing method and heat exchanger

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Embodiment 1

[0059] Such as Figure 1 to Figure 3 As shown, a circular microchannel wave panel heat exchanger core is composed of several circular microchannel wave surface heat exchange plates alternately stacked and fixed in two heat exchanger core frames 21 through tube slats 2 . For the structure of each circular microchannel wave surface heat exchange plate, see Figure 4 , Including several circular microchannels 1, the circular microchannels 1 are arranged closely to each other, and the two ends are respectively clamped and fixed by two tube slats 2, and there are also protrusions 3 between the tube slats 2 for Maintain the close fit between the circular microchannels 1.

[0060] The wavy surface heat exchange plates of the circular microchannels are laminated and fixed to each other by the tube strips 2 at both ends of the circular microchannel 1, and the two ends of the circular microchannel 1 extend out of the tube strip 2 for a certain length, and the extension parts are flush. ....

Embodiment 2

[0078] This embodiment is a heat exchanger using the core of the circular microchannel wave panel heat exchanger in embodiment 1. Such as Figure 8 As shown, a circular microchannel wave panel heat exchanger. The two ends of the core of the circular microchannel wave panel heat exchanger are respectively connected to the liquid collecting pipe 4, and the liquid collecting pipes 4 on both sides are provided with The flow baffle 5 where the tube strips 2 of the core of the microchannel round tube heat exchanger are fixed. The flow baffle 5 divides the inside of the liquid collecting pipe 4 into several flows, and the liquid collecting pipe is provided with a fluid inlet and a fluid outlet.

[0079] In order to make the liquid distribution between different heat exchange plates and between different circular microchannels 1 more uniform, in the liquid collecting pipe 4, a number of liquid uniform hoods are provided at the circular microchannel liquid inlet of each process 6. The li...

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Abstract

The invention discloses a circular microchannel wave surface plate heat exchange core body, a manufacturing method and a heat exchanger. The circular microchannel wave surface plate heat exchange corebody comprises heat exchanger core body frames, multiple circular microchannel wave surface heat exchange plates and multiple pipe battens; the multiple circular microchannel wave surface heat exchange plates are alternately laminated and fixed in two heat exchanger core body frames through the pipe battens at two ends of circular microchannels; each circular microchannel wave surface heat exchange plate is formed by fixedly connecting multiple single-layer circular microchannels tightly bonded side by side; and the inner diameters of the circular microchannels in the same circular microchannel wave surface heat exchange plates are the same. The heat exchanger core body can be used for manufacturing the heat exchanger; on the one hand, the heat exchange surface area is increased; and on the other hand, through turbulent flows on the surfaces of waves, heat transfer boundary layers can be changed, so that the heat exchange is more sufficient.

Description

Technical field [0001] The invention belongs to the technical field of heat exchanger equipment, and in particular relates to a circular microchannel wave panel heat exchanger core, a manufacturing method and a heat exchanger. Background technique [0002] Common heat exchangers, such as tube-fin heat exchangers and aluminum parallel flow micro-channel heat exchangers, use fins to increase the heat exchange area and increase the wind disturbance to enhance heat dissipation. Because the fins and the heat exchange tubes are cross-connected, in use, a series of negative effects such as difficult defrosting, easy accumulation of dust, and easy water bridges, which affect the efficiency of heat exchange, occur. The aluminum parallel flow microchannel heat exchanger is rarely used as an evaporator because of its dense fins, which affects defrosting. With the use of new green refrigerants, such as CO2, these refrigerants require pipes to withstand greater pressure, which is difficult t...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F21/08F28F21/00F28F9/02F28F3/02
Inventor 徐雅岚
Owner 徐雅岚
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