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Series PCHE heat exchanger suitable for cylinder arrangement and heat exchange method

A technology of heat exchangers and cylinders, applied in the direction of indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problems of large space occupation, multiple heat exchangers, space occupation, etc., and achieve the effect of saving space

Pending Publication Date: 2020-09-04
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common PCHE heat exchangers are mostly square, and the inlet and outlet nozzles are distributed on 4 different sides of the heat exchanger, so the inlet and outlet pipes of the heat exchanger are scattered and occupy a large space
In addition, generally speaking, a PCHE heat exchanger only realizes the heat exchanger function of one circuit, and multiple independent PCHE heat exchangers are required to realize multiple heat exchanges in several circuits, so that there will be more heat exchanger inlets and outlets Connecting tubes, taking up more space
[0004] In some special applications, such as ships, offshore platforms, etc., due to the small space and special requirements for the layout shape, the space utilization rate of the ordinary square independent PCHE heat exchanger is too low, and a specially designed heat exchanger is required meet special needs

Method used

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  • Series PCHE heat exchanger suitable for cylinder arrangement and heat exchange method
  • Series PCHE heat exchanger suitable for cylinder arrangement and heat exchange method
  • Series PCHE heat exchanger suitable for cylinder arrangement and heat exchange method

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Embodiment Construction

[0027] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Such as the supercritical CO2 system figure 1 As shown in the figure, the heat exchanger of the present invention can realize the function of the regenerator 4-1 and the remaining precooler 5-1 in the supercritical CO2 power generation system. In this system, the CO2 on the hot side of the regenerator 4-1 comes from the exhaust gas of the turbine 3-1. After the heat is released by the regenerator 4-1 and the precooler 5-1, it is discharged from the hot side of the precooler and enters the compressor 2. -1, the CO2 from the outlet of compressor 2-1 enters the cold side inlet of regenerator 4-1, and is discharged from the cold side outlet after absorbing heat. The water side inlet and outlet of precooler 5-1 are connected to the cooling water supply and drainage outside the system.

[0029] Such as figure 2 As shown, a tandem PCHE heat exchanger su...

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PUM

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Abstract

The invention discloses a series PCHE heat exchanger suitable for cylinder arrangement and a heat exchange method. The heat exchanger consists of a hollow cylinder, a front cover plate, a plurality ofheat medium plates, a cold medium plate and a back cover connected as a whole through vacuum diffusion welding in sequence from front to back and arranged in the hollow cylinder, wherein the front cover plate, the plurality of heat medium plates, the cold medium plate and the back cover are connected as a whole through vacuum diffusion welding in sequence from front to back and arranged in the hollow cylinder; and micro channels on the heat medium plates and the cold medium plate are formed by etching. The heat exchanger uses the cylinder shape as the space limitation, uses a supercritical CO2 power generation system as the application background, and integrates functions of a heat regenerator and a precooler in the supercritical CO2 power generation system; and all external interfaces are arranged on the front cover plate, so that the heat exchanger effectively gives the space to the greatest extent.

Description

Technical field [0001] The invention belongs to the technical field of heat exchange devices, and relates to a series PCHE heat exchanger suitable for cylindrical arrangement and a heat exchange method. Background technique [0002] Printed circuit heat exchanger (PCHE) belongs to the category of microchannel plate heat exchanger. PCHE has the advantages of compact structure, high temperature resistance, high pressure resistance, safety and reliability. It is widely used in refrigeration and air conditioning, oil and gas, nuclear industry, chemical industry, power industry and other fields. [0003] At present, the common PCHE heat exchangers are mostly square, and the inlet and outlet nozzles are distributed on 4 different sides of the heat exchanger, so the inlet and outlet pipes of the heat exchanger are scattered and occupy a large space. In addition, generally speaking, a PCHE heat exchanger only realizes the heat exchanger function of one loop, and multiple heat exchanges of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/04
CPCF28D9/0006F28D9/0037F28D9/005F28D9/0093F28F3/048
Inventor 高炜张磊吴帅帅李红智杨玉姚明宇张旭伟
Owner XIAN THERMAL POWER RES INST CO LTD
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