CN104930748A - 一种烟气热水型溴化锂换热系统 - Google Patents

一种烟气热水型溴化锂换热系统 Download PDF

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CN104930748A
CN104930748A CN201510411587.XA CN201510411587A CN104930748A CN 104930748 A CN104930748 A CN 104930748A CN 201510411587 A CN201510411587 A CN 201510411587A CN 104930748 A CN104930748 A CN 104930748A
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lithium bromide
heat
heat exchanger
combustion engine
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CN104930748B (zh
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倪满慧
刘蔚
杨和俊
余莉
杨玲
和彬彬
王�锋
王建伟
陈志锋
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Huadian Distributed Energy Engineering & Technology Co Ltd
China Huadian Engineering Group Co Ltd
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China Huadian Engineering Group Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
    • F25B27/007—Machines, plants or systems, using particular sources of energy using solar energy in sorption type systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems
    • Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration

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  • General Engineering & Computer Science (AREA)
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  • Sustainable Energy (AREA)
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Abstract

本发明公开了一种烟气热水型溴化锂换热系统，包括内燃机和溴化锂换热装置，溴化锂换热装置设置在内燃机的烟气管路上，溴化锂换热装置通过热源水管路与内燃机连接，其中溴化锂换热装置包括溴化锂机组、水-水换热器和烟气-水换热器，溴化锂机组和烟气-水换热器均设置在烟气管路上，溴化锂机组、水-水换热器和烟气-水换热器均通过热源水管路与内燃机连接。本发明将烟气-水换热器和水-水换热器与溴化锂机组集成为一体，共同对内燃机烟气和高温冷却水余热进行换热，有结构简单，换热效率高，占地少，安全性高的优点，具有进行推广应用的价值。

Description

一种烟气热水型溴化锂换热系统
技术领域
本发明涉及一种溴化锂换热系统，特别是一种烟气热水型溴化锂换热系统，属于内燃机溴化锂换热技术领域。
背景技术
目前，对内燃机烟气和高温冷却水余热的回收主要采用溴化锂换热机组。溴化锂换热机组结构简单，对安装基础的要求低，无需特殊的机座，而且其体积小，占地面积小，容易制造和控制，维护费用亦较低廉，运转十分安全。
现有的内燃机溴化锂换热系统，其中的换热器都是采用与溴化锂机组独立分开设置，即溴化锂机组和换热器都单独对内燃机进行换热，来吸收内燃机烟气和高温冷却水的余热，这就存在内燃机烟气余热回收不充分，回收效率低的问题，且系统的占地面积较大。
发明内容
本发明的目的在于，提供一种烟气热水型溴化锂换热系统，它将烟气-水换热器与溴化锂机组及水-水换热器连接使用，共同对内燃机烟气和高温冷却水的余热进行换热，提高了系统的换热能力，具有结构简单，换热充分，换热效率高，省占地的优点。
本发明的技术方案：一种烟气热水型溴化锂换热系统，包括内燃机和溴化锂换热装置，溴化锂换热装置设置在内燃机的烟气管路上，溴化锂换热装置通过热源水管路与内燃机连接，其中溴化锂换热装置包括溴化锂机组、水-水换热器和烟气-水换热器，溴化锂机组和烟气-水换热器均设置在烟气管路上，溴化锂机组、水-水换热器和烟气-水换热器均通过热源水管路与内燃机连接。溴化锂机组和烟气-水换热器均设置在烟气管路上，共同对烟气的余热进行回收，同时溴化锂机组、水-水换热器和烟气-水换热器均通过热源水管路与内燃机连接，共同对内燃机高温冷却水的余热进行回收，提高了回收效率，这种设置方式也使溴化锂换热装置占地面积更小。
前述的这种烟气热水型溴化锂换热系统中，烟气-水换热器与溴化锂机组通过热源水管路连接，烟气-水换热器与水-水换热器通过热源水管路连接。烟气-水换热器与溴化锂机组通过热源水管路相连，换热效果更好，对烟气和高温冷却水余热的回收更充分。
前述的这种烟气热水型溴化锂换热系统中，溴化锂机组上设置有切换阀一，水-水换热器上设置有切换阀二，烟气-水换热器上设置有切换阀三。设置切换阀，改变溴化锂换热装置内部的连接情况，以实现不同情况下对烟气和高温冷却水换热的不同要求，提高了系统的灵活性。
前述的这种烟气热水型溴化锂换热系统中，溴化锂机组、水-水换热器和烟气-水换热器分别通过切换阀一、切换阀二和切换阀三与热源水管路连接。通过切换阀控制热源水管路通断，简单方便。
前述的这种烟气热水型溴化锂换热系统中，还包括空调冷/温水回路，空调冷/温水回路连接在水-水换热器和溴化锂机组上。空调冷/温水回路的设置使余热被回收利用得更充分，可用于供暖和制冷等。
与现有技术相比，本发明不再设置单独的烟气-水换热器和水-水换热器，而是将烟气-水换热器和水-水换热器与溴化锂机组集成为一体，共同对内燃机烟气和高温冷却水余热进行换热，整个装置结构简单，换热效果显著，换热效率高，占地面积小，对烟气和高温冷却水余热进行充分地回收再利用，安全性能良好，适于进行推广应用。
附图说明
图1是本发明的整体结构示意图。
附图中的标记为：1-内燃机，2-溴化锂换热装置，3-烟气管路，4-溴化锂机组，5-水-水换热器，6-烟气-水换热器，7-切换阀一，8-切换阀二，9-切换阀三，10-空调冷/温水回路，11-热源水管路。
具体实施方式
下面结合附图和实施例对本发明作进一步的说明。
本发明的实施例1：一种烟气热水型溴化锂换热系统，包括内燃机1和溴化锂换热装置2，溴化锂换热装置2设置在内燃机1的烟气管路3上，溴化锂换热装置2通过热源水管路11与内燃机1连接，其中溴化锂换热装置2包括溴化锂机组4、水-水换热器5和烟气-水换热器6，溴化锂机组4和烟气-水换热器6均设置在烟气管路3上，溴化锂机组4、水-水换热器5和烟气-水换热器6均通过热源水管路11与内燃机1连接。
其中，烟气-水换热器6与溴化锂机组4通过热源水管路11连接，烟气-水换热器6与水-水换热器5通过热源水管路11连接。
并且，溴化锂机组4上设置有切换阀一7，水-水换热器5上设置有切换阀二8，烟气-水换热器6上设置有切换阀三9。溴化锂机组4、水-水换热器5和烟气-水换热器6分别通过切换阀一7、切换阀二8和切换阀三9与热源水管路11连接。还包括空调冷/温水回路10，空调冷/温水回路10连接在水-水换热器5和溴化锂机组4上。
本发明的实施例2：一种烟气热水型溴化锂换热系统，包括内燃机1和溴化锂换热装置2，溴化锂换热装置2设置在内燃机1的烟气管路3上，溴化锂换热装置2通过热源水管路11与内燃机1连接，其中溴化锂换热装置2包括溴化锂机组4、水-水换热器5和烟气-水换热器6，溴化锂机组4和烟气-水换热器6均设置在烟气管路3上，溴化锂机组4、水-水换热器5和烟气-水换热器6均通过热源水管路11与内燃机1连接。
其中，烟气-水换热器6与溴化锂机组4通过热源水管路11连接，烟气-水换热器6与水-水换热器5通过热源水管路11连接。
并且，溴化锂机组4上设置有切换阀一7，水-水换热器5上设置有切换阀二8，烟气-水换热器6上设置有切换阀三9。溴化锂机组4、水-水换热器5和烟气-水换热器6分别通过切换阀一7、切换阀二8和切换阀三9与热源水管路11连接。
本发明的使用方法：夏季工况，内燃机1排烟引入溴化锂换热装置2，烟气经过溴化锂机组4和烟气-水换热器6回收余热后排放，此时切换阀一7和切换阀三9打开，切换阀二8关闭，内燃机1的高温冷却水进入烟气-水换热器6，进一步吸收经过溴化锂机组4的排烟的余热，换热升温后的高温冷却水进入溴化锂机组4，作为溴化锂机组4制冷的热源，制冷后的低温冷却水返回内燃机1，溴化锂机组4利用内燃机1烟气和高温冷却水的余热产生的空调冷水，通过空调冷/温水管道11供给用户制冷；冬季工况，内燃机1排烟引入溴化锂换热装置2，烟气经过溴化锂机组4和烟气-水换热器6回收余热后排放，此时切换阀二8和切换阀三9打开，切换阀一7关闭，内燃机1的高温冷却水进入烟气-水换热器6，进一步吸收经过溴化锂机组4的排烟的余热，换热升温后的高温冷却水进入水-水换热器5，作为空调冷/温水回路10中部分采暖水的热源，换热后的低温冷却水返回内燃机1，加热后的采暖水被引入空调冷/温水回路10，与溴化锂机组4利用内燃机1烟气余热产生的采暖水汇集后供给用户采暖。

Claims (5)

1.一种烟气热水型溴化锂换热系统，其特征在于：包括内燃机(1)和溴化锂换热装置(2)，溴化锂换热装置(2)设置在内燃机(1)的烟气管路(3)上，溴化锂换热装置(2)通过热源水管路(11)与内燃机(1)连接，其中溴化锂换热装置(2)包括溴化锂机组(4)、水-水换热器(5)和烟气-水换热器(6)，溴化锂机组(4)和烟气-水换热器(6)均设置在烟气管路(3)上，溴化锂机组(4)、水-水换热器(5)和烟气-水换热器(6)均通过热源水管路(11)与内燃机(1)连接。
2.根据权利要求1所述的烟气热水型溴化锂换热系统，其特征在于：烟气-水换热器(6)与溴化锂机组(4)通过热源水管路(11)连接，烟气-水换热器(6)与水-水换热器(5)通过热源水管路(11)连接。
3.根据权利要求2所述的烟气热水型溴化锂换热系统，其特征在于：溴化锂机组(4)上设置有切换阀一(7)，水-水换热器(5)上设置有切换阀二(8)，烟气-水换热器(6)上设置有切换阀三(9)。
4.根据权利要求3所述的烟气热水型溴化锂换热系统，其特征在于：溴化锂机组(4)、水-水换热器(5)和烟气-水换热器(6)分别通过切换阀一(7)、切换阀二(8)和切换阀三(9)与热源水管路(11)连接。
5.根据权利要求4所述的烟气热水型溴化锂换热系统，其特征在于：还包括空调冷/温水回路(10)，空调冷/温水回路(10)连接在水-水换热器(5)和溴化锂机组(4)上。
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