CN102422116B - 热交换器 - Google Patents
热交换器 Download PDFInfo
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- CN102422116B CN102422116B CN2010800204954A CN201080020495A CN102422116B CN 102422116 B CN102422116 B CN 102422116B CN 2010800204954 A CN2010800204954 A CN 2010800204954A CN 201080020495 A CN201080020495 A CN 201080020495A CN 102422116 B CN102422116 B CN 102422116B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
- F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
- F28D7/1623—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0081—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by a single plate-like element ; the conduits for one heat-exchange medium being integrated in one single plate-like element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/424—Means comprising outside portions integral with inside portions
- F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/053—Heat-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
- F28D1/0535—Heat-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 the conduits having a non-circular cross-section
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/053—Heat-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
- F28D1/0535—Heat-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 the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
本发明涉及一种可以在流经热交换管内部的加热水和燃烧气体之间有效进行传热的热交换器。该热交换器包括:多个热交换管,每个热交换管具有截面呈扁管形的敞开端部,并且加热水流经每个热交换管的内部;第一固定板和第二固定板,每个固定板具有沿着板的纵向以预定间隔形成的管插入孔,并且多个热交换管的两端插在对应的管插入孔中;第一平行流道盖和第二平行流道盖,分别固定在第一固定板和第二固定板上,并且用于封闭各热交换管的两端,从而形成平行流道;加热水进口,与第一平行流道盖连接;和加热水出口,与第一平行流道盖连接或与第二平行流道盖连接。每个热交换管的截面呈具有沿着热交换管的宽度方向交替设置的突出部和凹陷部的形状,从而延长燃烧气体流经各热交换管之间的流路。
Description
技术领域
本发明涉及一种用于锅炉的热交换器,具体而言,涉及一种允许在燃烧气体和流经热交换管的加热水之间有效传热的热交换器。
背景技术
在本领域中已知的是,燃烧装置的例子可以包括锅炉和热水器等,这些燃烧装置通过使用燃烧器在燃烧室中对流经热交换管内部的加热水进行加热。也就是说,用在普通家庭、公共建筑物等中的锅炉被用于加热房间并供应热水,热水器在短时间内将冷水加热到预定的温度,从而允许使用者方便地使用热水。诸如锅炉和热水器等大多数燃烧装置由以下系统构成:该系统使用油或气体作为燃料并借助燃烧器燃烧油或气体,通过使用在燃烧过程中产生的燃烧热对水进行加热,并向使用者供应被加热的水(热水)。
燃烧装置配备有吸收从燃烧器产生的燃烧热的热交换器,并且已经提出用于改善热交换器的传热效率的各种方法。
在相关领域中,一般使用的方法是通过在热交换管的外表面上形成多个翅片来增大热交换管的传热面积。然而,这种热交换管的制造方法复杂并且制造成本增加,同时翅片对传热面积的影响基本没有增大。
图1是示出制造方法比相关领域中的翅片式热交换器更为简单的矩形热交换器的示图。
这种热交换器的结构是:具有宽度大于高度的矩形截面的热交换管1的两端被装配在固定板2和3中,端板4和5例如通过铜焊(即,硬钎焊)固定到固定板上。在端板4和5上分别形成有加热水进口6和加热水出口7。各热交换管1通过管连接器8彼此连接,使得流经加热水进口6的加热水在经过热交换管1和管连接器8之后通过加热水出口7排出。这种热交换器的优点在于,其制造方法比翅片式热交换器的制造方法更为简单,并且可以充分地确保传热面积。
然而,由于在热交换器的燃烧器中的燃烧,燃烧气体沿箭头方向流经各热交换管1之间的空间,但是燃烧气体的流路相对较短,使得燃烧气体的热量不能充分地传递到各热交换管1。此外,由于在家用锅炉中各热交换管1之间的间隙通常是1~2mm,因而随着锅炉的运行以及加热水流入各热交换管1中,各热交换管1在加热水的压力下膨胀并阻断燃烧气体的流路,从而降低了热交换效率。
发明内容
技术问题
本发明致力于提供一种热交换器,其可以通过增大燃烧气体流经热交换管的路径的长度并允许燃烧气体产生湍流来提高传热效率。此外,本发明还致力于提供一种热交换器,其可以防止热交换管由于流经热交换管的加热水的压力造成的膨胀而阻断燃烧气体的路径。此外,本发明还致力于提供一种热交换器,其可以保持燃烧气体所经过的各热交换管之间的间隙均匀。
技术方案
根据本发明例示性实施例的热交换器包括:多个热交换管,每个热交换管具有截面呈扁管形的敞开端部,并且加热水流经每个热交换管的内部;第一固定板和第二固定板,每个固定板具有沿着板的纵向以预定间隔形成的管插入孔,并且所述的多个热交换管的两端插在对应的管插入孔中;第一平行流道盖和第二平行流道盖,第一平行流道盖和第二平行流道盖分别固定在第一固定板和第二固定板上,并且用于封闭各热交换管的两端,从而形成平行流道;加热水进口,所述加热水进口与第一平行流道盖连接;和加热水出口,所述加热水出口与第一平行流道盖连接或与第二平行流道盖连接,其中每个热交换管的截面具有沿着所述热交换管的宽度方向交替设置的突出部和凹陷部,从而延长燃烧气体流经各热交换管之间的流路。
所述热交换管具有多个伸出部,所述的各伸出部沿着所述热交换管的长度方向间隔开且在所述热交换管的宽度方向上伸出,并且相邻的热交换管的伸出部彼此接触。
所述热交换管的上部和下部在厚度方向上的截面具有彼此匹配的形状,并且由相邻的热交换管所形成的燃烧气体的流路的截面形状相似。
通过压制形成第一平行流道盖和第二平行流道盖,第一平行流道盖和第二平行流道盖具有用于封闭各热交换管的端部的多个穹状部和在所述的各穹状部之间的连接部,并且在所述连接部处的所述热交换管之间插入形状与所述热交换管的截面形状相似的插入板,使得燃烧气体的流路的形状和间隙保持相似。
通过压制和弯折形成所述热交换管,然后焊接连接部。
有益效果
根据本发明的热交换器,可以通过延长燃烧气体流经热交换管的流路来提高传热效率。此外,可以防止热交换管由于流经热交换管的加热水的压力造成的膨胀而阻断燃烧气体的路径。此外,可以保持燃烧气体所经过的各热交换管之间的整个间隙均匀。
附图说明
图1是示出相关领域中的矩形热交换器的示图。
图2是根据本发明例示性实施例的热交换器的立体图。
图3是示出根据本发明例示性实施例的热交换器的示意性截面的示图。
图4是示出当根据本发明例示性实施例的多个热交换管堆叠时的截面的示图。
图5是示出根据本发明例示性实施例的热交换管的形状的示图。
图6是示出根据本发明例示性实施例的第一固定板的形状的示图。
图7是示出根据本发明例示性实施例的第一平行流道盖的形状的示图。
图8是示出插在根据本发明例示性实施例的各热交换管之间的插入板的形状的示图。
主要附图标记和符号的说明
10:热交换管 11:突出部
12:凹陷部 13:伸出部
21:第一固定板 21a:管插入孔
22:第二固定板 31:第一平行流道盖
32:第二平行流道盖 31a,32a:穹状部
31b,32b:连接部 41:加热水进口
42:加热水出口 50:插入板
具体实施方式
下面,参照附图,详细说明本发明优选实施例的结构和操作。对于附图中的各元件的附图标记,需要注意的是,相同的元件具有基本上相同的附图标记,即使这些元件出现在不同的附图中。
图2是根据本发明例示性实施例的热交换器100的立体图,图3是示出热交换器的示意性截面的示图。
热交换器100包括热交换管10、第一固定板21、第二固定板22、第一平行流道盖31、第二平行流道盖32、加热水进口41和加热水出口42。
热交换管10具有扁管形截面,端部敞开,加热水流经热交换管10。各热交换管10纵向堆叠。
第一固定板21和第二固定板22具有以规则间隔纵向设置的管插入孔21a,并且各热交换管10的两端插在管插入孔中(参见图6)。
第一平行流道盖31和第二平行流道盖32分别固定在第一固定板21和第二固定板22上,并且通过封闭热交换管10的敞开两端形成平行流道。
第一平行流道盖31的下部与加热水进口41连接,并且上部与加热水出口42连接。不同的是,加热水进口41可以与第一平行流道盖31的下部连接,并且加热水出口42可以与第二平行流道盖32的上部连接。
下面,参照图3,对流经热交换器100的加热水的流路进行说明。
加热水经过在热交换器100下部的加热水进口41流入内部,并在流经两个热交换管10之后流到右侧。流经热交换管10的右端的加热水经过堆叠在上述两个热交换管10之上的另两个热交换管10的右端而向左侧流动。这四个热交换管10的右端被第二平行流道盖32的穹状部32a封闭。
流到左侧的加热水在流经第一平行流道盖31的穹状部31a之后沿着另两个热交换管10流向右侧。加热水在按此方式以之字形改变流路的同时流经热交换管10,然后,经过与第一平行流道盖31的上部连接的加热水出口42排出。加热水在流经热交换管10的同时与通过在燃烧器中燃烧而产生的燃烧气体进行热交换。在附图中,燃烧气体在沿着垂直面对图纸的方向或相反方向流经各热交换管10之间的同时将热量传递到加热水。
图4是示出当各热交换管10堆叠时的截面的示图,图5是示出一个热交换管10的形状的示图。
在例示性实施例中,热交换管10的宽度方向w是燃烧气体流经各热交换管之间的方向,厚度方向t是示出具有扁管形截面的热交换管10的厚度的方向,纵向1是示出热交换管10的整个长度的方向(参见图5)。
热交换管10的截面呈具有沿着热交换管10的宽度方向w交替设置的突出部11和凹陷部12的形状,从而延长燃烧气体流经各热交换管之间的流路。此外,热交换管10的截面呈具有在厚度方向t上彼此匹配的上部和下部的形状。也就是说,在热交换管10中,当上部沿厚度方向t突出时,下部是凹陷的。因此,由两个相邻的热交换管10所形成的燃烧气体的流路的截面形状呈多个S形,并且这些形状在整个热交换管10中大致相同。
根据这种结构,燃烧气体的流路延长,并且热交换管10的传热面积增大,使得燃烧气体的热量可以充分地传递到热交换管10中的加热水。此外,由于燃烧气体的流路形成S形,所以燃烧气体会产生湍流。因此,燃烧气体停留在流路中的时间更长,相应地,燃烧气体的热量可以通过各热交换管10充分地传递到加热水,从而可以提高热交换效率。
优选的是,通过以下方式来制造热交换管10:对金属板压制以形成在厚度方向t上具有上部和下部的形状,弯折中间部,然后焊接连接部。通过简化制造工艺可以降低热交换管10的制造成本。另外,随着锅炉的运行以及加热水流入热交换管10中,由于加热水的压力,热交换管10可以沿厚度方向膨胀。一般而言,设置在家用锅炉中的热交换器的尺寸较小并且各热交换管10之间的间隙大约是1~2mm。也就是说,燃烧气体流经大约1~2mm的间隙,使得当热交换管10膨胀时会阻断燃烧气体的路径,从而热交换效率降低。
由于热交换管10具有交替设置的突出部11和凹陷部12并且通过压制制造,因此热交换管10具有足够的刚性并且由于加热水的压力造成的膨胀非常小。然而,优选的是,热交换管具有多个伸出部13,该伸出部沿着热交换管的纵向以预定距离在热交换管的宽度方向上朝向两侧伸出,从而更为可靠地防止热交换管10由于加热水的压力而发生膨胀。当沿着纵向设置各热交换管10时,相邻的热交换管的伸出部13彼此接触。因此,利用伸出部13,可以防止燃烧气体的流路被膨胀的热交换管10阻断。
另一方面,各伸出部13沿着热交换管10的纵向隔开。也就是说,各伸出部13与燃烧气体的流路平行地隔开,使得燃烧气体的流路基本不被伸出部13阻断,同时燃烧气体的流路被分成几段,使得燃烧气体的热量可以被充分地传递到各热交换管10。此外,流经热交换管10的加热水在经过伸出部13的同时产生湍流,使得加热水可以进一步接收燃烧气体的热量,并且提高了整个热交换效率。
图6是示出根据本发明例示性实施例的第一固定板21的形状的示图。第二固定板22的形状与第一固定板21的形状相同。
在第一固定板21上以规则间隔形成有插入热交换管10的端部的管插入孔21a。例如通过铜焊将,第一平行流道盖31固定在第一固定板21上,形成平行流道。
图7是示出根据本发明例示性实施例的第一平行流道盖31的形状的示图,图8是示出插在根据本发明例示性实施例的各热交换管10之间的插入板50的示图。除了第一平行流道盖31具有用于连接加热水进口41和加热水出口42的开口之外,第二平行流道盖32的形状也与第一平行流道盖31的形状大致相同。
第一平行流道盖31具有用于封闭各热交换管10的端部的多个穹状部31a和在各穹状部之间的连接部31b。一般而言,通过压制制造具有这种形状的平行流道盖。如上所述,虽然锅炉中各热交换管10之间的间隙只有大约1~2mm,但是通过压制极难形成具有1~2mm间隙的穹状部(也就是说,通过压制极难制造出使连接部31b为1~2mm长的第一平行流道盖31)。一般而言,通过压制所形成的连接部32b的最小长度为大约4~5mm。当通过平行流道盖形成热交换路径时,靠近平行流道盖的连接部的各热交换管10之间的间隙应该为4~5mm,其他各热交换管10之间的间隙为1~2mm,使得各热交换管10之间的间隙不均匀。也就是说,设置在穹状部31周围的各热交换管10之间的距离为1~2mm,而邻近连接部的各热交换管10之间的距离为4~5mm。在这种情况下,大部分燃烧气体在彼此间隔为4~5mm的各热交换管10之间流过,而不是均匀地流过各热交换管10之间,从而热交换效率降低。
为了解决该问题,在第一平行流道盖的连接部31b处的热交换管10之间插入截面形状与热交换管10的截面形状相似的插入板50(参见图4)。在与第一平行流道盖31交替设置的第二平行流道盖32的连接部32b处也插入插入板50。结果,每隔两个热交换管插入插入板50(参见图3)。因此,可以将各热交换管10之间的间隙保持在大约1~2mm,而不必考虑连接部31b,并且燃烧气体可以在整个热交换管10之间均匀地流过,从而改善了热交换效率。
如上所述,由于根据本发明例示性实施例的热交换管10呈具有沿着热交换管的宽度方向交替设置的突出部11和凹陷部12的截面形状,因而可以允许燃烧气体沿着流经热交换管的更长流路产生湍流,这样提高了传热效率。此外,每个热交换管10具有在纵向1上间隔的伸出部13,并且相邻热交换管的伸出部13彼此接触,使得可以有效地防止热交换管由于流经热交换管的加热水的压力造成的膨胀而阻断燃烧气体的流路。此外,由于将形状与热交换管10的截面相似的插入板50插在对应于平行流道盖的连接部31b的位置,因而可以使各热交换管10之间的整个间隙保持均匀并且提高了热交换效率。
本发明不限于例示性实施例,对于本领域技术人员显而易见的是,可以在不背离本发明的范围和精神内作出各种修改和变化。
Claims (3)
1.一种热交换器,其包括:
多个热交换管,每个热交换管具有截面呈扁管形的敞开端部,并且加热水流经每个热交换管的内部;
第一固定板和第二固定板,每个固定板具有沿着板的纵向以预定间隔形成的管插入孔,并且所述的多个热交换管的两端插在对应的管插入孔中;
第一平行流道盖和第二平行流道盖,第一平行流道盖和第二平行流道盖分别固定在第一固定板和第二固定板上,并且用于封闭各热交换管的两端,从而形成平行流道;
加热水进口,所述加热水进口与第一平行流道盖连接;
加热水出口,所述加热水出口与第一平行流道盖连接或与第二平行流道盖连接,
其中每个热交换管的截面具有沿着所述热交换管的宽度方向交替设置的突出表面和凹陷表面,从而延长燃烧气体流经各热交换管之间的流路;
多个伸出部,所述的各伸出部沿着所述热交换管的长度方向间隔开且在所述热交换管的宽度方向上伸出,并且相邻的热交换管的伸出部彼此接触,防止所述热交换管由于在流经所述热交换管的加热水的压力下膨胀而阻断所述燃烧气体的所述流路;
第一平行流道盖和第二平行流道盖,所述第一平行流道盖和所述第二平行流道盖构造为具有用于封闭各热交换管的端部的多个穹状部和在所述的各穹状部之间的连接部,使得所述加热水在以之字形改变所述流路的同时流经所述热交换管,且所述第一平行流道盖和所述第二平行流道盖通过压制制造;和
在所述连接部处的所述各热交换管之间插入形状与所述热交换管的截面形状相似的插入板,且所述插入板的长度对应于所述连接部的长度,以减小所述热交换管之间的间隙,使得所述燃烧气体的所述流路的形状和间隙保持相似。
2.如权利要求1所述的热交换器,其中所述热交换管的上部和下部在厚度方向上的截面具有彼此匹配的形状,并且由相邻的热交换管所形成的的截面形状相似。
3.如权利要求1或2所述的热交换器,其中通过压制和弯折形成所述热交换管,然后焊接连接部。
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- 2010-04-20 JP JP2012507144A patent/JP5589062B2/ja not_active Expired - Fee Related
- 2010-04-20 US US13/265,311 patent/US9250021B2/en not_active Expired - Fee Related
- 2010-04-20 EP EP10767261.0A patent/EP2423633A4/en not_active Withdrawn
- 2010-04-20 EA EA201190265A patent/EA019912B1/ru not_active IP Right Cessation
- 2010-04-20 CA CA2759520A patent/CA2759520C/en not_active Expired - Fee Related
- 2010-04-20 CN CN2010800204954A patent/CN102422116B/zh not_active Expired - Fee Related
- 2010-04-20 WO PCT/KR2010/002443 patent/WO2010123247A2/ko active Application Filing
- 2010-04-20 AU AU2010239899A patent/AU2010239899B2/en not_active Ceased
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Also Published As
Publication number | Publication date |
---|---|
JP5589062B2 (ja) | 2014-09-10 |
WO2010123195A3 (ko) | 2010-12-16 |
WO2010123195A2 (ko) | 2010-10-28 |
EP2423633A4 (en) | 2014-04-30 |
CA2759520C (en) | 2016-06-21 |
AU2010239899B2 (en) | 2013-03-21 |
WO2010123247A2 (ko) | 2010-10-28 |
AU2010239899A1 (en) | 2011-12-08 |
US20120037346A1 (en) | 2012-02-16 |
KR101086917B1 (ko) | 2011-11-29 |
JP2012524236A (ja) | 2012-10-11 |
CN102422116A (zh) | 2012-04-18 |
EA201190265A1 (ru) | 2012-04-30 |
KR20100115601A (ko) | 2010-10-28 |
EA019912B1 (ru) | 2014-07-30 |
CA2759520A1 (en) | 2010-10-28 |
EP2423633A2 (en) | 2012-02-29 |
WO2010123247A3 (ko) | 2011-02-24 |
US9250021B2 (en) | 2016-02-02 |
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