CN108151208A - 一种节能制冷空调系统 - Google Patents

一种节能制冷空调系统 Download PDF

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CN108151208A
CN108151208A CN201711405694.7A CN201711405694A CN108151208A CN 108151208 A CN108151208 A CN 108151208A CN 201711405694 A CN201711405694 A CN 201711405694A CN 108151208 A CN108151208 A CN 108151208A
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energy
heat exchanger
refrigeration air
air condition
condition system
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李祎
蒋俊钢
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International Intellectual Property Trading Center Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0007Air-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 cooling apparatus specially adapted for use in air-conditioning
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06Sorption 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/02Compression-sorption machines, plants, or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316Assemblies of conduits connected to common headers, e.g. core type radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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  • Other Air-Conditioning Systems (AREA)

Abstract

本发明涉及制冷空调装备技术领域,特别涉及一种节能制冷空调系统。其包括风机、换热器、压缩机、吸收式制冷机、节流阀、通风管道、循环管道;所述通风管道上依次设有所述风机和所述吸收式制冷机;所述循环管道上依次设有所述换热器、所述压缩机、所述吸收式制冷机和所述节流阀;所述吸收式制冷机上设有冷却水进水管道和冷却水出水管道。本发明的目的在于提供一种节能制冷空调系统,以解决现有节能制冷空调系统节能效果差的问题。

Description

一种节能制冷空调系统
技术领域
本发明涉及制冷空调装备技术领域,特别涉及一种节能制冷空调系统。
背景技术
随着我国经济的发展和人民生活水平的提高,空调已经进入到千家万户及各种办公场所、公共场所。空调的使用大大改善了人们的生活质量,特别是夏季大量制冷空调集中使用,制冷空调是一种用于给室内提供冷空气的机组,它的功能是对该室内空气的温度进行调节,以满足人体舒适或工艺过程的要求。在制冷空调中,制冷剂在蒸发器(室内机)吸热而汽化,在冷凝器(室外机)将热量散发到空气中,热量被浪费,制冷空调室外机散发的热量没有能够回收利用,是一种损失。
现有的制冷空调余热利用技术是将制冷空调室外机排出的热量吸收,直接加热冷水,加热后的热水通过管道供给热水使用终端;但是制冷空调一般用于夏日温度较高的时期,此时对热水的需求不高,对制冷空调排出的热量利用率低,且在相同制冷量要求下,制冷耗能没有降低,达不到节能效果。
发明内容
本发明的目的在于提供一种节能制冷空调系统,以解决现有节能制冷空调系统节能效果差的问题。
本发明的目的是由下述技术方案实现的:
一种节能制冷空调系统,其包括风机、换热器、压缩机、吸收式制冷机、节流阀、通风管道、循环管道;所述通风管道上依次设有所述风机和所述吸收式制冷机;所述循环管道上依次设有所述换热器、所述压缩机、所述吸收式制冷机和所述节流阀;所述吸收式制冷机上设有冷却水进水管道和冷却水出水管道。
进一步的,所述吸收式制冷机为两级吸收的溴化锂吸收式制冷机。
进一步的,所述换热器侧边设置风扇。
进一步的,所述换热器包括上联箱、下联箱和所述上联箱与所述下联箱之间的多个换热管,所述换热管与所述上联箱、所述下联箱连通;所述上联箱通过所述循环管道与所述压缩机连通,所述下联箱通过所述循环管道与所述节流阀连通;所述换热管内壁上设有凹槽。
进一步的,所述换热管内壁上设有换热柱。
进一步的,所述换热管为铜管。
进一步的,所述换热管外壁上设有换热片。
进一步的,所述换热片由铝制成。
进一步的,所述循环管道上设有保温层。
进一步的,所述通风管道上设有所述保温层。
本发明与现有技术相比具有如下优点:
1.本发明所述节能制冷空调系统,其包括风机、换热器、压缩机、吸收式制冷机、节流阀、通风管道、循环管道;所述通风管道上依次设有所述风机和所述吸收式制冷机;所述循环管道上依次设有所述换热器、所述压缩机、所述吸收式制冷机和所述节流阀;所述吸收式制冷机上设有冷却水进水管道和冷却水出水管道;本发明通过循环管道可以将换热器中吸热后的制冷剂通过压缩机加压,将高温高压的制冷剂通入吸收式制冷机,作为吸收式制冷机的驱动热源,通过吸收式制冷机的制冷剂变为高压低温制冷剂,通过节流阀后,继续降低温度,变为低压低温制冷剂,然后通过换热器吸热,达到室内空气制冷的目的;同时,通过通风管道上的风机将室内热空气输入吸收式制冷机,吸收式制冷机将空气制冷,排入屋内;本发明利用换热器吸收的的热量驱动吸收式制冷机,吸收式制冷机冷却室内空气,实现利用余热制冷的效果,提高制冷效率,在相同制冷量需求下,降低制冷能耗,节约能源。
2.本发明点所述吸收式制冷机为两级吸收的溴化锂吸收式制冷机;两级吸收的溴化锂吸收式制冷机可有效地利用低温位热能驱动,实现制冷效果。
3.本发明所述换热器侧边设置风扇,增大换热器周围的空气流动性,提高换热效率,提高制冷效果。
附图说明
图1为本发明所述节能制冷空调系统结构图;
图2为本发明所述换热器结构图;
图3为本发明所述换热管结构图(截面图);
图中:1-风机、2-换热器、201-上联箱、202-换热管、203-换热片、204-下联箱、205-凹槽、206-换热柱、3-压缩机、4-节流阀、5-吸收式制冷机、6-通风管道、7-循环管道、8-风扇、9-冷却水进水管道、10-冷却水出水管道。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语″中心″、″上″、″下″、″左″、″右″、″竖直″、″水平″、″内″、″外″等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语″第一″、″第二″、″第三″仅用于描述目的,而不能理解为指示或暗示相对重要性。
参见图1,一种节能制冷空调系统,其包括风机1、换热器2、压缩机3、吸收式制冷机5、节流阀4、通风管道6、循环管道7;通风管道6上依次设有风机1和吸收式制冷机5;循环管道7上依次设有换热器2、压缩机3、吸收式制冷机5和节流阀4;吸收式制冷机5上设有冷却水进水管道9和冷却水出水管道10;本发明通过循环管道7可以将换热器2中吸热后的制冷剂通过压缩机3加压,将高温高压的制冷剂通入吸收式制冷机5,作为吸收式制冷机5的驱动热源,通过吸收式制冷机5的制冷剂变为高压低温制冷剂,通过节流阀4后,继续降低温度,变为低压低温制冷剂,然后通过换热器2吸热,达到室内空气制冷的目的;同时,通过通风管道6上的风机1将室内热空气输入吸收式制冷机5,吸收式制冷机5将空气制冷,排入屋内;本发明利用换热器2吸收的的热量驱动吸收式制冷机5,吸收式制冷机5冷却室内空气,实现利用余热制冷的效果,对比现有制冷空调系统将换热器2吸收的热量直接排出或用来加热冷水,可以将换热器3制冷和吸收式制冷机5制冷效果叠加,提高了制冷空调系统的制冷效率,在相同制冷量的需求下,可以降低制冷的能耗,节约能源。
参见图1,吸收式制冷机5为两级吸收的溴化锂吸收式制冷机;两级吸收的溴化锂吸收式制冷机可有效地利用低温位热能驱动,实现制冷效果,较好的利用换热器2吸收的室内空气热量。
参见图1,换热器2侧边设置风扇8;风扇8可以增大换热器2周围的空气流动性,提高对流换热效率,提高制冷效果。
参见图1、图2、图3,换热器2包括上联箱201、下联箱204和上联箱201与下联箱204之间的多个换热管202,换热管202与上联箱201、下联箱204连通;上联箱201通过循环管道7与压缩机3连通,下联箱204通过循环管道7与节流阀4连通;换热管202内壁上设有凹槽205;换热管202内壁上设有凹槽205;增大换热管202的换热面积,同时产生良好的紊流效果,达到提高换热管202对流换热效率的目的。
参见图3,换热管202内壁上设有换热柱206;进一步的增大换热管202的换热面积,同时产生良好的紊流效果,达到提高换热管202对流换热效率的目的;换热柱206可以扰乱流体的壁面温度边界层,提高换热管202的换热效率。
参见图2、图3,本发明换热管202为铜管;铜管具有良好的导热性能;换热片203由铝制成;铝具有良好的换热性能;铜导热系数较高,但是换热较慢,铝导热系数相对铜较低,但是换热较快,两者结合,利用各自的优点,具有良好的换热效果。
参见图2、图3,本发明换热管202外壁上设有换热片203,增大换热面积,提高换热效果。
参见图1,循环管道7上设有保温层;减少循环管道7的热量散失,循环管道7中的热量散发到室内空气中,会提高室内空气温度,降低制冷效果。
参见图1,通风管道6上设有所述保温层;减少通风管道6的热量散失,通风管道6中的热量散发到室内空气中,会提高室内空气温度,降低制冷效果。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

1.一种节能制冷空调系统,其特征在于:包括风机、换热器、压缩机、吸收式制冷机、节流阀、通风管道、循环管道;所述通风管道上依次设有所述风机和所述吸收式制冷机;所述循环管道上依次设有所述换热器、所述压缩机、所述吸收式制冷机和所述节流阀;所述吸收式制冷机上设有冷却水进水管道和冷却水出水管道。
2.根据权利要求1所述的节能制冷空调系统,其特征在于:所述吸收式制冷机为两级吸收的溴化锂吸收式制冷机。
3.根据权利要求1或2所述的节能制冷空调系统,其特征在于:所述换热器侧边设置风扇。
4.根据权利要求1或2所述的节能制冷空调系统,其特征在于:所述换热器包括上联箱、下联箱和所述上联箱与所述下联箱之间的多个换热管,所述换热管与所述上联箱、所述下联箱连通;所述上联箱通过所述循环管道与所述压缩机连通,所述下联箱通过所述循环管道与所述节流阀连通;所述换热管内壁上设有凹槽。
5.根据权利要求4所述的节能制冷空调系统,其特征在于:所述换热管内壁上设有换热柱。
6.根据权利要求5所述的节能制冷空调系统,其特征在于:所述换热管为铜管。
7.根据权利要求6所述的节能制冷空调系统,其特征在于:所述换热管外壁上设有换热片。
8.根据权利要求7所述的节能制冷空调系统,其特征在于:所述换热片由铝制成。
9.根据权利要求1或2所述的节能制冷空调系统,其特征在于:所述循环管道上设有保温层。
10.根据权利要求9所述的节能制冷空调系统,其特征在于:所述通风管道上设有所述保温层。
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