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1. WO2020133679 - HEAT EXCHANGE-POWER GENERATION INTEGRATED SYSTEM USING LIQUID NITROGEN AND CONTROL METHOD

Publication Number WO/2020/133679
Publication Date 02.07.2020
International Application No. PCT/CN2019/076342
International Filing Date 27.02.2019
IPC
F01K 25/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
25Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
08using special vapours
10the vapours being cold, e.g. ammonia, carbon dioxide, ether
F01D 15/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
15Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
10Adaptations for driving, or combinations with, electric generators
F28D 7/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
08the conduits being otherwise bent, e.g. in a serpentine or zig-zag
CPC
F01D 15/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
15Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
10Adaptations for driving, or combinations with, electric generators
F01K 25/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
25Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
08using special vapours
10the vapours being cold, e.g. ammonia, carbon dioxide, ether
F28D 7/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
08the conduits being otherwise bent, e.g. in a serpentine or zig-zag
Applicants
  • 天津大学 TIANJIN UNIVERSITY [CN]/[CN]
Inventors
  • 刘海峰 LIU, Haifeng
  • 崔雁清 CUI, Yanqing
  • 易文韬 YI, Wentao
  • 杨智 YANG, Zhi
  • 尧命发 YAO, Mingfa
  • 郑尊清 ZHENG, Zunqing
  • 王浒 WANG, Hu
Agents
  • 天津市北洋有限责任专利代理事务所 BEI & OCEAN
Priority Data
201811605966.226.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) HEAT EXCHANGE-POWER GENERATION INTEGRATED SYSTEM USING LIQUID NITROGEN AND CONTROL METHOD
(FR) SYSTÈME INTÉGRÉ D'ÉCHANGE DE CHALEUR-DE GÉNÉRATION D'ÉNERGIE UTILISANT DE L'AZOTE LIQUIDE ET PROCÉDÉ DE COMMANDE
(ZH) 一种利用液氮的换热-发电集成系统及控制方法
Abstract
(EN)
A heat exchange-power generation integrated system using liquid nitrogen, comprising an electronic control unit (ECU) (21), which controls a liquid nitrogen pump (2) and a solenoid valve to act so that refrigerant liquid nitrogen is introduced into a heat exchange tank (15). Fluid required for heat exchange releases heat to the liquid nitrogen in a heat exchange pipeline so as to achieve the purpose of cooling and, at the same time, thermally expanded nitrogen gas is used to further generate power to achieve the recycling of energy. By means of the ECU (21) controlling the action of the solenoid valve, the temperature of the fluid for heat exchange may be controlled at a set value, and the intelligent adjustment of the cooling temperature may be achieved. The present system has a simple structure and is low cost, the maintenance thereof is convenient, and the system may be used to achieve the rapid cooling of equipment, such as an engine, that has high heat loads and high heat exchange requirements. Also disclosed is a control method using the described system.
(FR)
L'invention concerne un système intégré d'échange de chaleur-de génération d'énergie utilisant de l'azote liquide, comprenant une unité de commande électronique (ECU) (21), qui commande une pompe à azote liquide (2) et une électrovanne afin d'agir de telle sorte que de l'azote liquide réfrigérant est introduit dans un réservoir d'échange de chaleur (15). Le fluide requis permettant l'échange de chaleur libère de la chaleur vers l'azote liquide dans une conduite d'échange de chaleur de façon à atteindre l'objectif de refroidissement et, dans le même temps, un gaz d'azote thermiquement expansé est utilisé afin de générer de l'énergie supplémentaire afin d'obtenir le recyclage de l'énergie. Au moyen de l'ECU (21) commandant l'action de l'électrovanne, la température du fluide destiné à un échange de chaleur peut être commandée à une valeur définie, et le réglage intelligent de la température de refroidissement peut être obtenu. Le présent système a une structure simple et est peu coûteux, son entretien est pratique, et le système peut être utilisé pour réaliser le refroidissement rapide d'un équipement, tel qu'un moteur, qui présente des charges de chaleur élevées et des exigences d'échange de chaleur élevées. La présente invention concerne également un procédé de commande à l'aide du système décrit.
(ZH)
一种利用液氮的换热-发电集成系统,包括电子控制单元ECU(21),其控制液氮泵(2)、电磁阀动作将制冷剂液氮引入到换热箱(15)中。所需换热的流体在换热管路中将热量释放给液氮以达到降温的目的,同时利用受热膨胀的氮气进一步发电,实现能量的回收利用。通过电子控制单元ECU(21)控制电磁阀动作可以实现将换热的流体温度控制在设定值,实现对冷却温度的智能调节。该系统结构较简单,成本低,维护保养方便,可以用于使发动机等具有较高热负荷及较高换热需求的设备实现快速降温。还公开了一种采用该系统的控制方法。
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