Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gas and liquid two-phase flow uniform-distributing device and gas and liquid two-phase flow mixing method for plate-fin heat exchanger

A plate-fin heat exchanger, gas-liquid two-phase flow technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problem of increasing the length of the heat exchanger and fluid resistance, increasing the gas-liquid The size of the phase separation tank, the increase of fluid flow, etc., can achieve the effect of reducing the number of inlets and outlets, reducing fluid resistance, and reducing flow

Active Publication Date: 2011-07-27
四川空分设备(集团)有限责任公司
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the length of the heat exchanger and fluid resistance are increased, and the increased pipeline will also increase the fluid resistance, and the increase in fluid flow will also increase the size of the gas-liquid phase separation tank

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas and liquid two-phase flow uniform-distributing device and gas and liquid two-phase flow mixing method for plate-fin heat exchanger
  • Gas and liquid two-phase flow uniform-distributing device and gas and liquid two-phase flow mixing method for plate-fin heat exchanger
  • Gas and liquid two-phase flow uniform-distributing device and gas and liquid two-phase flow mixing method for plate-fin heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 4 to Figure 7As shown, a device for evenly distributing gas-liquid two-phase flow of a plate-fin heat exchanger. The interior of the plate-fin heat exchanger follows the direction of fluid flow, including fin flow channel I zone 8, liquid Distribution seal 7, fin flow channel II area 9, gas distribution seal 6, fin flow channel III area 10; the fin flow channel I area, fin flow channel II area, and fin flow channel III area are internal design There is a flow channel with heat exchange fins, the length of the liquid distribution seal, the length of the gas distribution seal and the width of the heat exchanger are consistent;

[0046] The liquid distribution seal and the gas distribution seal have a similar structure, including a fluid distribution seal 1 located between two partitions 2, the fluid in the fluid distribution seal 1 is liquid or gas, and the length of the fluid distribution seal is equal to The width of the heat exchanger is consistent, an...

Embodiment 2

[0052] The structure of this device is basically the same as that of Embodiment 1, the difference is that two horizontal fluid channels 4 are arranged along the length direction of the fluid distribution seal, and the fluid channels 4 in the liquid distribution seal are connected with the fin flow channels. Zone I 8 communicates outside zone II of the fin channel, and the fluid channel 4 in the gas distribution seal communicates with zone II of the fin channel 9 outside zone III 10 of the fin channel.

[0053] At this time, the gas-liquid two-phase flow mixing method using the uniform distribution device of the plate-fin heat exchanger includes the following steps:

[0054] (1) The gas-liquid two-phase fluid to be imported is separated into liquid-phase fluid and gas-phase fluid after passing through the separation tank. The liquid-phase fluid enters the liquid distribution seal, and the fluid from the fin flow channel I area is in the liquid distribution seal. Mix evenly insi...

Embodiment 3

[0057] Such as Figure 8 , Figure 9 As shown, the structure of this device is basically the same as that of Embodiment 1, the difference is that the fluid distribution groove 3 and the fluid channel 5 are staggered, and the two are not on the same straight line parallel to the width of the fluid distribution seal.

[0058] The present invention is not limited to the above-mentioned embodiments, and can be extended to the reverse change of the fluid direction, the front and back sequence adjustment of the liquid distribution seal and the gas distribution seal, and the like.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a gas and liquid two-phase flow uniform-distributing device and a gas and liquid two-phase flow mixing method for a plate-fin heat exchanger. The plate-fin heat exchanger internally comprises a fin channel area 1, a liquid distributing seal, a fin channel area II, a gas distributing seal, and a fin channel area III from bottom to top along the flowing direction of fluid; the fin channel area 1, the fin channel area II and the fin channel area III are channels that are internally provided with heat exchanging fins; and the length of the liquid distributing seal and the length of the gas distributing seal are consistent with the width of the heat exchanger. The invention also relates to a method for mixing the gas and liquid two-phase flow in the plate-fin type heat exchanger. In the invention, the device and the mixing method have the advantages that when the gas and liquid two-phase flow is gathered in the middle of the heat exchanger, the distributing uniformity of the two-phase flow fluids can be improved, the quantity of the gas and liquid two-phase flow fluids passing by the inlet and outlet can be reduced, the flow for re-distributing the two-phase fluid can be reduced, the resistance of the fluid can be reduced, and the length of the heat exchanger can be reduced under the condition of ensuring the area of the heat exchanger.

Description

technical field [0001] The invention relates to a gas-liquid two-phase flow uniform distribution device for a plate-fin heat exchanger and a gas-liquid two-phase flow mixing method. Background technique [0002] With the wide application of plate-fin heat exchangers in the field of petrochemical industry, the rapid development of natural gas liquefaction process, especially the development of high-efficiency mixed refrigerant process. The inlet and outlet of the heat exchanger in the cold box are gas-liquid two-phase fluid distribution and heat exchange, and the gas-liquid two-phase fluid is required to flow in, mix and distribute, which brings new challenges to the design and manufacture of plate-fin heat exchangers. The traditional structure cannot meet the requirements. [0003] In existing products, it is impossible to confluent, mix and distribute multi-component gas-liquid two-phase flow inside the flow channel of the heat exchanger, and the original fluid (single-pha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F28F9/22
CPCF28D9/0068F25J5/002F25J2270/12F25J2290/32
Inventor 谭民邦周勇何敏
Owner 四川空分设备(集团)有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com