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Plate-fin heat exchanger of brazed composite coil pipe

A technology of plate-fin heat exchanger and composite disc, which is applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problems of low temperature resistance, poor heat transfer efficiency, high cost, etc., and achieve material The effect of widening the selection range, expanding the scope of application, and high heat exchange efficiency

Pending Publication Date: 2020-11-10
苏州三川换热器股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing plate-fin heat exchanger, because its channel is made of aluminum fins, the strength of the aluminum material is obviously reduced when the temperature is above 60°C, and it is not resistant to corrosion, so the existing plate-fin heat exchanger is not resistant high pressure, not resistant to high temperature, not resistant to corrosion, and easy to block, can withstand up to 15Mpa, and its use is limited
Therefore, in the case of high pressure, high temperature or corrosive fluids on the market, only coil heat exchangers with high cost and much poorer heat transfer efficiency can be used.

Method used

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  • Plate-fin heat exchanger of brazed composite coil pipe
  • Plate-fin heat exchanger of brazed composite coil pipe
  • Plate-fin heat exchanger of brazed composite coil pipe

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0023] Embodiment one: see Figure 1~3 Shown:

[0024] A plate-fin heat exchanger of brazed composite coil tubes, comprising an integrally brazed plate bundle body 1 and a sealing head 2 arranged on the plate bundle body 1 .

[0025] see Figure 1~3 As shown, the plate bundle body 1 is composed of two or more layer channel units stacked alternately, and at least one of the two or more layer channel units is a coil layer channel unit 11 . The coil layer channel unit 11 is as figure 1 , figure 2 As shown, it includes a first clamping plate 111 , a second clamping plate 112 and a coil pipe 113 arranged between the first clamping plate 111 and the second clamping plate 112 . The coiled pipe 113 is formed by coiling a pipe body on a plane. The first splint 111 and the second splint 112 are provided with a groove 11111 corresponding to the coil 113 , and the coil 113 is accommodated in the groove 11211 of the first splint 111 and the second splint 112 .

[0026] see figure 1...

Embodiment 2

[0040] Embodiment two: see Figure 4 Shown:

[0041] A plate-fin heat exchanger with brazed composite coils, including an integrally brazed plate bundle body 1 and a head 2 arranged on the plate bundle body 1, the only difference from the embodiment is: the The coiled pipe 113 is composed of a plurality of parallel and leaning pipe bodies coiled on a plane. Others are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a plate-fin heat exchanger of a brazed composite coil pipe. The plate-fin heat exchanger of the brazed composite coil pipe comprises a plate bundle body (1) which is formed byalternately stacking two or more than two layer channel units and is characterized in that at least one of the two or more than two layer channel units is a coil pipe layer channel unit (11), the coilpipe layer channel unit (11) comprises a first clamping plate (111), a second clamping plate (112) and a coil pipe (113) arranged between the first clamping plate (111) and the second clamping plate(112), the first clamping plate (111) is formed by splicing a plurality of same first battens (1111) on the same plane, and the second clamping plate (112) is formed by splicing a plurality of same second battens (1121) on the same plane; and the first clamping plate (111), the second clamping plate (112) and the coil pipe (113) of the coil pipe layer channel unit (11) form a whole after integralbrazing forming.

Description

technical field [0001] The invention relates to a plate-fin heat exchanger, in particular to a plate-fin heat exchanger with brazed composite coil tubes. Background technique [0002] Plate-fin heat exchanger is a high-efficiency heat exchanger with fins as heat transfer elements. It has the characteristics of high heat transfer efficiency, compact structure, expandable heat exchange channels, large adaptability, and light weight. Therefore, , It is widely used in gas-gas, gas-liquid and liquid-liquid two or more heat exchange equipment, and is usually used in the field of air separation equipment at present. [0003] For the existing technology, please refer to the technical standard "NB / T 47006-2019 Aluminum Plate-fin Heat Exchanger". The standard plate-fin heat exchanger is composed of plate bundle body, head, connecting pipe, support and other accessories. The plate bundle body is composed of two or more layer channel units alternately stacked and integrally brazed. Ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/06F28F3/08F28F9/013F28F9/02F28F9/22F28F9/26
CPCF28D9/0031F28F3/06F28F3/08F28F9/0131F28F9/02F28F9/22F28F9/26F28F2009/222F28F2275/06
Inventor 李建明
Owner 苏州三川换热器股份有限公司