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Compact type multi-stage series PCHE heat exchanger and heat exchange method

A heat exchanger, compact technology, applied in the field of compact multi-stage series PCHE heat exchanger and heat exchange, can solve the problems of large space occupation, low utilization rate of heat exchanger space, multiple heat exchangers, etc., to achieve reduction Small direct heat transfer, effect of mitigating thermal stress problems

Pending Publication Date: 2020-09-29
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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  • Compact type multi-stage series PCHE heat exchanger and heat exchange method
  • Compact type multi-stage series PCHE heat exchanger and heat exchange method
  • Compact type multi-stage series PCHE heat exchanger and heat exchange method

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 , figure 2 with image 3 As shown, the present invention is a compact multi-stage series PCHE heat exchanger. The heat exchanger system can realize the functions of the regenerator and precooler in the supercritical CO2 power generation system, and the whole is cylindrical. The system includes a regenerator Heater, precooler, inlet and outlet pipes and connecting pipes; the regenerator includes a regenerator front cover plate 1.1 welded and connected as a whole from front to back, several regenerator cold medium plates 1.2, and several regenerator The heat medium plate 1.3 of the precooler and the rear cover plate 1.4 of the regenerator. The cold medium plate 2.3 of the cooler and the rear cover plate 2.4 of the precooler, the inlet and outlet pipes include the inlet pipe 3 on the hot side of the regenerato...

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Abstract

The invention discloses a compact type multi-stage series PCHE (printed circuit heat exchanger) heat exchanger and a heat exchange method. The heat exchanger comprises a heat regenerator, a precoolerand a connecting pipeline, the heat regenerator and the precooler specifically comprise respective front cover plates, a plurality of thermal medium plates, a plurality of cold medium plates and rearcovers, and micro-channels on the thermal medium plates and cold medium plates are formed by etching. According to the compact type multi-stage series PCHE heat exchanger, a cylindrical shape is usedas space limitation, a supercritical CO2 power generation system is used as the application background, the functions of the heat regenerator and the precooler in the supercritical CO2 power generation system are integrated, and the given space is effectively utilized to the maximum degree through the heat exchanger.

Description

technical field [0001] The invention belongs to the technical field of heat exchange devices, and relates to a compact multi-stage serial PCHE heat exchanger 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, etc. It is widely used in refrigeration and air conditioning, oil and gas, nuclear industry, chemical industry, electric 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 four 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 indepen...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F3/04
CPCF28D9/0006F28D9/0037F28D9/005F28D9/0093F28F3/048
Inventor 高炜姚明宇李红智张磊杨玉吴帅帅
Owner XIAN THERMAL POWER RES INST CO LTD
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