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Vehicle liquid oxygen/CO2 heat exchanger

A heat exchanger and shell technology, applied in the field of vehicle-mounted heat exchangers, can solve the problems of difficult recovery and large oxygen demand, and achieve the effects of convenient storage, reduced volume and energy saving

Inactive Publication Date: 2010-02-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a vehicle-mounted liquid oxygen / CO 2 The heat exchanger solves the large oxygen demand and CO 2 Difficult to recycle issues

Method used

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  • Vehicle liquid oxygen/CO2 heat exchanger
  • Vehicle liquid oxygen/CO2 heat exchanger

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0016] Such as figure 1 As shown, the present invention mainly includes: three major parts of the shell with the inner helical pipe, the central rotating shaft and the helical blade. Liquid oxygen enters the heat exchanger from inlet 1 of the spiral pipe channel, gradually starts to vaporize, and absorbs a large amount of heat. After being completely vaporized, it flows out of the heat exchanger from outlet 7. CO from the engine 2 It flows in from the inlet 3, passes through the channel formed by the spiral blade 6 in the reverse direction, and fully exchanges heat with the liquid oxygen / oxygen mixture in the spiral pipe, and fully releases heat and converts it into dry ice. The helical rotatable vane 6 installed in the heat exchanger pipe is matched with the inner wall of the pipe for clearance. The central rotating shaft 5 drives the heli...

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Abstract

The invention discloses a vehicle liquid oxygen / CO2 heat exchanger. The heat exchanger comprises a shell, a central rotation shaft, and a helical blade. The helical blade is fixed on the central rotation shaft in the shell and forms a helical passage with an inner wall of the shell. Helical pipes are arranged between the inner wall and the outer wall of the shell. The liquid oxygen flows in the heat exchanger through an inner helical pipe on the shell, and is gradually vaporized into gaseous oxygen and absorbs a great amount of heat. CO2 flows in the helical passage formed by the helical bladein the heat exchanger along the direction opposite to that of the liquid oxygen, and exchanges heat with the mixture of the liquid oxygen / gaseous oxygen in the helical pipes to convert into solid carbon dioxide. The heat exchanger solves the problem of huge oxygen demand in a vehicle internal combustion power system and the problem of difficult recovery of CO2 based on a Rankine cycle pure oxygencombustion technology.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers and relates to a liquid oxygen / CO 2 The heat exchanger is a method that uses liquid oxygen to vaporize and absorb heat to convert CO 2 On-board heat exchanger that converts to dry ice. Background technique [0002] At present, the issue of greenhouse gas emissions has received great attention from all over the world. On February 16, 2005, the international community adopted the "Kyoto Protocol" aimed at curbing global warming. It stipulates that between 2008 and 2012, the emissions of six greenhouse gases such as carbon dioxide in developed countries will be reduced by 1990. The basis is an average reduction of 5.2%. Although the Kyoto Protocol does not stipulate the indicators that must be implemented for developing countries, with the rapid and continuous development of my country's economy, my country's greenhouse gas CO 2 Emissions are also getting higher. China is indeed facing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/10F28F1/40F25C5/02
Inventor 吴志军于潇费腾陈乐敏徐智君
Owner TONGJI UNIV