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Parallel small diameter heat pipe enhanced heat exchange device for recovering medium and low temperature flue gas waste heat and preparation method thereof

A technology of low-temperature flue gas and enhanced heat exchange, which is applied in steam generation methods using heat carriers, heat exchange equipment, indirect heat exchangers, etc. low cost effect

Active Publication Date: 2019-11-08
NANJING UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the waste heat waste of flue gas produced by small-scale combustion equipment, to provide a parallel small-diameter heat pipe enhanced heat exchange device and its preparation method for recovering the waste heat of medium and low temperature flue gas, and to use the waste heat of flue gas for heat exchange to improve fuel efficiency. Utilization, domestic hot water or heating of other substances

Method used

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  • Parallel small diameter heat pipe enhanced heat exchange device for recovering medium and low temperature flue gas waste heat and preparation method thereof
  • Parallel small diameter heat pipe enhanced heat exchange device for recovering medium and low temperature flue gas waste heat and preparation method thereof
  • Parallel small diameter heat pipe enhanced heat exchange device for recovering medium and low temperature flue gas waste heat and preparation method thereof

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples of implementation.

[0046] Such as Figure 1 to Figure 16 , the flue gas passage 1 is a rectangular passage, the flue gas flows in from one side of the passage, and flows out from the other side, and the heat exchange main body of the parallel small-diameter heat pipe heat exchange device is arranged in the flue, that is, the multiple parallel small diameter heat exchange devices of the heat exchange device Diameter heat pipe 4 and liquid accumulation cavity 3, when the flue gas flows through multiple parallel small-diameter heat pipes 4 at a certain flow rate, the flue gas transfers heat from the flue gas to the heat pipe in the liquid-absorbing core on the inner wall of the small-diameter heat pipe through convection and heat conduction Working fluid.

[0047] The flue wall 2 isolates the flue gas from the environment, and at the same time, the ...

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Abstract

The invention relates to a parallel small diameter heat pipe enhanced heat exchange device for recovering medium and low temperature flue gas waste heat, aims to solve the problem of waste of medium and low temperature flue gas waste heat generated in small combustion equipment primarily, recovers the flue gas waste heat by means of parallel small diameter heat pipes to produce hot water or heat other substances, and is suitable for recovering waste heat of small flow flue gas or a discontinuous small flow heat source. The parallel small diameter heat pipe enhanced heat exchange device is primarily characterized in that the parallel small diameter heat pipe enhanced heat exchange device is good in heat transfer property, compact in structure, small in size, easy to process and low in cost,and can achieve self transfer of heat and efficient recovery of waste heat, so that the exhaust gas temperature is reduced greatly and the integral efficiency of the system is improved. The device isquite suitable for heat recovery of small capacity medium and low temperature flue gas waste heat and discontinuous waste heat resources, and a heating container is taken conveniently.

Description

technical field [0001] The present invention relates to a small-scale enhanced heat exchange device for recovering waste heat of medium and low temperature flue gas and performing efficient heat transfer and heat utilization and a preparation method thereof. The small-diameter heat pipe is used under the joint action of the heat source and the heated working medium to pass through the heating medium of the heat pipe. The phase change movement realizes the recovery of waste heat and the thermodynamic conversion and heat transfer of the working medium in the tube. It belongs to the field of two-phase flow high-efficiency heat transfer and waste heat recovery. Background technique [0002] At present, there are a large number of medium and low temperature waste heat resources in industrial, civil and commercial thermal equipment, among which the capacity of waste heat resources of civil and commercial thermal equipment is lower than that of large industrial waste heat resources...

Claims

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Application Information

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IPC IPC(8): F22B1/18F22B31/08F23J15/06F28D15/02F28F21/08
CPCF22B1/18F22B31/08F23J15/06F28D15/02F28F21/085Y02E20/30
Inventor 苏磊庄志柳沁知黄骏峰张中男陈琦璐张钧波周剑秋
Owner NANJING UNIV OF TECH
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