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A pipe layout structure suitable for heat exchangers with phase change

A phase-change heat exchanger and pipe-laying technology, which is applied to the field of pipe-laying structures containing phase-change heat exchangers, can solve problems such as gas phase accumulation, improve flow and heat transfer, improve heat transfer efficiency, and is easy to implement and popularize. Effect

Active Publication Date: 2017-04-05
HEFEI GENERAL MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a pipe layout structure suitable for heat exchangers containing phase change. This pipe layout structure effectively solves the problem of gas phase accumulation between tube bundles, so that the gas phase and liquid phase The flow between the tube bundles can be smooth, thus significantly improving the heat transfer efficiency

Method used

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  • A pipe layout structure suitable for heat exchangers with phase change
  • A pipe layout structure suitable for heat exchangers with phase change
  • A pipe layout structure suitable for heat exchangers with phase change

Examples

Experimental program
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Effect test

Embodiment 1

[0031] figure 1 Shown is a liquid-phase boiling heat exchanger, where the entire heat exchange tube bundle is immersed in the liquid-phase space.

[0032] Such as figure 1 As shown, the horizontal air duct 21, the longitudinal air duct 22, and the oblique air duct 23 are introduced into the gas-phase condensing integrated pipe distribution area 20A. The gas-phase condensing integrated pipe distribution area 20A is thus divided into a number of partial pipe distribution areas 24, and each partial pipe distribution area 24 Each area can be designed independently in accordance with the traditional pipe routing method.

Embodiment 2

[0034] figure 2 Shown is a vapor phase condensing heat exchanger.

[0035] Such as figure 2 As shown, the liquid-phase boiling integral pipe distribution area 20B is provided with several horizontal air passages 21 and longitudinal air passages 22, so that the liquid-phase boiling integral pipe distribution area 20B is divided into several partial pipe distribution areas 24, each of which is in each partial pipe distribution area 24 All areas can be independently designed in accordance with the traditional pipe arrangement.

Embodiment 3

[0037] image 3 Shown is the same spatial combination phase-change heat exchanger containing two phase-change directions.

[0038] Such as image 3 As shown, the gas-phase condensing integrated pipe distribution area 20A is erected in the upper area inside the housing 10 through the bracket 30, and the liquid-phase boiling integrated pipe-lining area 20B is arranged below the gas phase condensation integrated pipe distribution area 20A.

[0039] Introduce the horizontal air duct 21, the longitudinal air duct 22 and the oblique air duct 23 into the gas-phase condensing integrated pipe distribution area 20A and the liquid-phase boiling integrated pipe distribution area 20B respectively, so as to divide the overall pipe distribution area into several partial pipe distribution areas 24. Each area in the pipe distribution area 24 can be independently designed in accordance with the traditional pipe distribution method.

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Abstract

The invention belongs to the technical field of piping of heat exchangers and particularly relates to a piping structure suitable for a heat exchanger with phase change. The piping structure comprises a casing, a gas-phase condensation integral piping area and / or a liquid phase boiling integral piping area is / are arranged in the casing, and mutually communicated gas channels for dividing the integral piping area into a plurality of local piping areas are arranged in the gas-phase condensation integral piping area and / or the liquid phase boiling integral piping area respectively. The gas channels comprise a plurality of transverse gas channels, longitudinal gas channels and inclined gas channels. Gas channels are introduced into the piping structure suitable for the heat exchanger with phase change, namely the combined transverse gas channels, longitudinal gas channels and inclined gas channels communicated mutually are arranged in the integral piping areas, therefore, the gas phase overflow rate between tubular bundles is effectively increased, the gas flow condition and heat conduction working condition between the tubular bundles are improved remarkably, heat conduction efficiency is effectively increased under the conditions that the caliber of the device is not increased, the piping structure suitable for the heat exchanger with phase change is easy to apply and popularize, and fine design is facilitated.

Description

Technical field [0001] The invention belongs to the technical field of heat exchanger tube layout, and specifically relates to a tube layout structure suitable for a phase-change heat exchanger. Background technique [0002] The phase change heat transfer in industrial refrigeration equipment occurs between the gas phase and the liquid phase. Due to the huge difference in the thermal properties of the medium in the two phases, when the phase change occurs, it will cause a sharp change in the local flow rate, which will lead to The severe disturbance of the flow field, especially when the equipment is restricted by a certain size, will have an adverse effect on the overall heat transfer performance and mechanical performance of the heat exchanger. [0003] The following descriptions are made from two phase transition directions. [0004] When the heat exchanger is applied to the liquid-phase boiling heat transfer condition, the heat-exchange tube is immersed in the entire liquid-phas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/00
Inventor 陈永东周兵江慧丰程沛
Owner HEFEI GENERAL MACHINERY RES INST
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