TWI824478B - Multi-tube heat exchanger - Google Patents
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- 239000012530 fluid Substances 0.000 claims abstract description 91
- 239000007787 solid Substances 0.000 claims abstract description 64
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 abstract description 6
- 210000004262 dental pulp cavity Anatomy 0.000 abstract 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 239000011324 bead Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 235000013361 beverage Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 235000015192 vegetable juice Nutrition 0.000 description 1
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Abstract
[課題] 提供一種不會導致大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物附著於管板上而堆積之多管式熱交換器。 [解決手段] 本發明的多管式熱交換器(1)中,在由外殼亦即罐身(2)和覆蓋該外殼(2)的軸向兩端開口部之管板(3,4)在前述外殼(2)的內部區劃出之密閉空間(S)內,在前述管板(3,4)之間架設複數根管亦即導熱管(5),藉由流過複數根管(5)內之被處理流體與流過密閉空間(S)內之熱媒體之間的熱交換來對被處理流體進行加熱或冷卻,上述多管式熱交換器(1)中,在相鄰之2根管(5)之間形成凸部(3C),將該凸部(3C)的周長(W)設定為比被處理流體中所包含之固態物(m)的長度(M)更長亦即W>M。 [Problem] To provide a multi-tube heat exchanger that can prevent the accumulation of solid matter contained in the fluid to be processed from adhering to the tube sheet with a simple structure without increasing the size or cost. [Solution] In the multi-tube heat exchanger (1) of the present invention, the shell (2), which is the tank body, and the tube sheets (3, 4) covering the openings at both axial ends of the shell (2) In the enclosed space (S) partitioned inside the aforementioned shell (2), a plurality of tubes, that is, heat transfer tubes (5), are set up between the aforementioned tube plates (3, 4). By flowing through the plurality of tubes (5) The fluid to be processed is heated or cooled by heat exchange between the fluid to be processed in the sealed space (S) and the heat medium flowing through the closed space (S). In the above-mentioned multi-tube heat exchanger (1), the adjacent 2 A convex portion (3C) is formed between the root canals (5), and the circumference (W) of the convex portion (3C) is set to be longer than the length (M) of the solid matter (m) contained in the fluid to be treated. That is, W>M.
Description
本發明有關一種在罐身內收納相互平行地配設之複數根導熱管而構成之多管式熱交換器,特別是有關一種用以將含有固態物之飲料等作為被處理流體而對其進行加熱或冷卻之多管式熱交換器。The present invention relates to a multi-tube heat exchanger configured by accommodating a plurality of heat transfer tubes arranged in parallel with each other in a can body. In particular, it relates to a multi-tube heat exchanger for treating beverages containing solid matter as a fluid to be processed. Multi-tube heat exchanger for heating or cooling.
這種多管式熱交換器(殼管式熱交換器)中,在由筒狀的罐身(外殼)和覆蓋該罐身的軸向兩端開口部的一對管板在罐身的內部區劃出之密閉空間內,在一對管板之間相互平行地架設複數根導熱管(管),藉由流過複數根導熱管內之被處理流體與流過密閉空間內之冷媒或熱媒(以下,將該等統稱為“熱媒體”)之間的熱交換來對被處理流體進行加熱或冷卻。This multi-tube heat exchanger (shell-and-tube heat exchanger) consists of a cylindrical tank body (shell) and a pair of tube plates covering the openings at both axial ends of the tank body. In a divided enclosed space, a plurality of heat-conducting tubes (tubes) are set up parallel to each other between a pair of tube plates. (Hereinafter, these are collectively referred to as "thermal media") to heat or cool the fluid to be processed.
然而,在該多管式熱交換器中,在被加熱或冷卻之被處理流體例如為如果汁般者的情形下,在果汁中包含稱為“汁囊”之既定長度的固態物(纖維),因此在以比固態物的長度更短的間隔尺寸配置複數根導熱管之情形下,產生如下問題。亦即,在將作為被處理流體之例如果汁送入各導熱管中時,產生該果汁中所包含之固態物(汁囊)的兩端橫跨在相鄰之2根導熱管的內部,該固態物藉由流體壓緊壓在流入側的管板而堆積之問題。However, in this multi-tube heat exchanger, when the fluid to be heated or cooled is, for example, juice, the juice contains solid matter (fibers) of a predetermined length called "juice sacs" , therefore, when a plurality of heat transfer tubes are arranged at intervals shorter than the length of the solid object, the following problem occurs. That is, when a fluid to be processed, such as juice, is fed into each heat transfer tube, both ends of the solid matter (juice sac) contained in the juice are produced across the inside of two adjacent heat transfer tubes. The problem of accumulation of solid matter due to fluid compression against the tube sheet on the inflow side.
如上所述,若固態物附著於管板上而堆積,則需要藉由清潔來去除該堆積之固態物,但是存在該清潔作業麻煩且需要大量時間和勞力之問題。As described above, if solid matter adheres to the tube sheet and accumulates, the accumulated solid matter needs to be removed by cleaning. However, there is a problem that the cleaning operation is troublesome and requires a lot of time and labor.
因此,例如,在專利文獻1中,用可裝卸的導板覆蓋從管板突出之導熱管的流入側端部,以防止異物附著於從導熱管的管板突出之部分上之熱交換器已被提出。Therefore, for example, in
又,在專利文獻2中,以比被處理流體中所包含之固態物的長度尺寸更大的間隔尺寸配置導熱管(液體流通管)之多管式熱交換器已被提出。
[先前技術文獻]
Furthermore,
[專利文獻1] 日本實開平6-055076號公報 [專利文獻2] 日本特開2005-291624號公報 [Patent Document 1] Japanese Utility Model Publication No. 6-055076 [Patent Document 2] Japanese Patent Application Publication No. 2005-291624
[發明所欲解決之問題][Problem to be solved by the invention]
然而,在專利文獻1中提出之熱交換器中,需要利用複數根螺栓將導板安裝於管板上,除了該安裝/拆卸麻煩以外,還需要作為另一零件之導板、螺栓等零件,因此存在零件件數增加,導致結構的複雑化和成本增加之問題。並且,在該熱交換器中,未提及導熱管的排列間隔,因此有可能會導致被處理流體中所包含之固態物附著於導板上。However, in the heat exchanger proposed in
又,在專利文獻2中提出之多管式熱交換器中,以比被處理流體中所包含之固態物的長度尺寸更大的間隔尺寸配置了導熱管(液體流通管),因此產生收納導熱管之罐身(外殼)的直徑變大而該多管式熱交換器大型化之問題。Furthermore, in the multi-tube heat exchanger proposed in
本發明係鑑於上述問題開發完成者,其目的為提供一種不會導致大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物附著於管板上而堆積之多管式熱交換器。 [解決問題之技術手段] The present invention was developed in view of the above-mentioned problems, and its object is to provide a multi-tube that can prevent the accumulation of solid matter contained in the fluid to be processed from adhering to the tube sheet with a simple structure without causing an increase in size or cost. type heat exchanger. [Technical means to solve problems]
為了實現上述目的,本發明的多管式熱交換器中,在由罐身和覆蓋該罐身的軸向兩端開口部之管板在前述罐身的內部區劃出之密閉空間內架設複數根導熱管,藉由流過複數根前述導熱管內之被處理流體與流過前述密閉空間內之熱媒體之間的熱交換來對前述被處理流體進行加熱或冷卻,前述多管式熱交換器的特徵為: 在相鄰之2根前述導熱管之間形成凸部,將該凸部的周長設定為比前述被處理流體中所包含之固態物的長度更長。 [發明之效果] In order to achieve the above object, in the multi-tube heat exchanger of the present invention, a plurality of heat exchangers are erected in a sealed space defined by a tank body and tube plates covering the openings at both axial ends of the tank body. The heat transfer tube heats or cools the fluid to be processed by heat exchange between the fluid to be processed flowing through the plurality of heat transfer tubes and the heat medium flowing through the closed space. The multi-tube heat exchanger The characteristics are: A convex portion is formed between two adjacent heat transfer tubes, and the circumference of the convex portion is set to be longer than the length of the solid matter contained in the fluid to be processed. [Effects of the invention]
依據本發明,將在相鄰之2根導熱管之間形成之凸部的周長設定為比被處理流體中所包含之固態物的長度更長,因此無需以比被處理流體中所包含之固態物的長度尺寸大的間隔尺寸配置導熱管即能夠防止產生被處理流體中所包含之固態物的兩端橫跨在相鄰之2根導熱管內之現象。因此,不會導致多管式熱交換器的大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物附著於管板上而堆積。According to the present invention, the circumference of the convex portion formed between two adjacent heat transfer tubes is set to be longer than the length of the solid matter contained in the fluid to be treated. By arranging the heat transfer tubes with large lengths of solid objects at intervals, it is possible to prevent the phenomenon in which both ends of the solid objects contained in the fluid to be processed span two adjacent heat transfer tubes. Therefore, it is possible to prevent the solid matter contained in the fluid to be processed from adhering to the tube sheet and accumulating with a simple structure without increasing the size and cost of the multi-tube heat exchanger.
以下依據圖式對本發明的實施形態進行說明。Embodiments of the present invention will be described below based on the drawings.
<實施形態1>
圖1係本發明的實施形態1之多管式熱交換器的縱向剖視圖,圖2係圖1的A部放大詳細圖,圖3係沿著圖2的B-B線剖切之剖視圖,圖4(a)係表示導熱管與管板的連接結構之部分縱向剖視圖,圖4(b)係表示導熱管與管板的另一連接結構之部分縱向剖視圖,圖5係圖2的C部放大詳細圖。
<
如圖1所示,本實施形態之多管式熱交換器1具備橫置之圓筒狀的罐身(以下,稱為“外殼”)2,該外殼2的軸向兩端(圖1的左右兩端)的開口部被一對(圖1的左右一對)圓板狀的管板3、4覆蓋。並且,在外殼2內,由左右一對管板3、4區劃出密閉空間S,複數根導熱管(以下,稱為“管”)5以水平且相互平行地架設在一對管板3、4之間之狀態收納於該密閉空間S中。具體而言,如圖3所示,共計19根管5以相等間距(軸心間距離)P整齊地排列之狀態收納於密閉空間S內。另外,在本實施形態中,在外殼2的材質中使用SUS304,在管板3、4和管5中使用了SUS316L。又,雖然未圖示,但是外殼2在長度方向中間部被分割成兩部分,兩個分割件藉由用以吸收該外殼2的熱膨張或熱收縮之伸縮接頭連結。As shown in FIG. 1 , the
又,如圖1及圖2所示,在一方(圖1及圖2的左側)管板3的旁邊安裝有圓筒容器狀的集管6,在該集管6的底部形成有圓孔狀的被處理流體流入口6a。在集管6與管板3的接觸面之間安裝有O型環等密封環7(參閱圖2),藉由該密封環7的密封作用在集管6與管板3之間確保了高密封性。並且,對於集管6的被處理流體流入口6a連接有被處理流體流入噴嘴8。另外,在本實施形態中,作為被處理流體,使用果汁飲料、蔬菜汁等飲料,作為該等飲料中所包含之固態物,可舉出食物纖維、汁囊(果粒)、椰果等。並且,在本實施形態之多管式熱交換器1中,如後述,被處理流體從圖1的左方流入到各管5內,並在各管5內從左方流向右方,但是以下將圖1的左側稱為“流入側”且將右側稱為“流出側”。In addition, as shown in Figures 1 and 2, a cylindrical container-
進而,如圖1所示,在外殼2的靠近流出側的管板4的部位的上部開設有圓孔狀的熱媒體流入口2a,對於該熱媒體流入口2a連接有熱媒體流入噴嘴9。又,在外殼2的靠近流入側的管板3的部位的下部開設有圓孔狀的熱媒體流出口2b,對於該熱媒體流出口2b連接有熱媒體流出噴嘴10。Furthermore, as shown in FIG. 1 , a circular hole-shaped
在此,將各管5的流入側的端部與管板3的連接結構示於圖4(a)中,但是在管板3形成有共計19個圓孔3a(在圖4(a)中僅圖示1個),各管5的流入側的一端部從管板3的內側分別***到各圓孔3a中。具體而言,在管板3形成之圓孔3a中形成有直徑大小不同的小徑部3a1和大徑部3a2,管5的流入側的一端部從密閉空間S側(圖4(a)的右側)***到該圓孔3a的大徑部3a2中,對所***之該管5的端部內周部進行熔接,藉此各管5的流入側的端部分別與管板3連接。如此,管5***到管板3的圓孔3a的大徑部3a2中並藉由熔接而連接,藉此圓孔3a的小徑部3a1與管5的內周面無段差且平直地連接。另外,在圖4(a)中,a表示熔接銲珠。Here, the connection structure between the inflow-side end of each
並且,在本實施形態中,如圖4(a)所示,將從流入側的管板3的外表面到熔接銲珠a的流入側的端部的距離L設定為比被處理流體中所包含之固態物m的長度M更長(L>M)。另外,將各管5與管板3的連接結構的其他例示於圖4(b)中,但是在該連接結構中,在管板3的內表面的各圓孔3a的一端開口部周緣一體形成圓筒狀的唇部3b,將管5的流入側的一端部***到形成有該唇部3b的圓孔3a的大徑部3a2中,對其抵接部的內周進行熔接,藉此將各管5的流入側的一端部與管板3連接。此時,亦將從管板3的外表面到熔接銲珠a的流入側的端部的距離L設定為比固態物m的長度M更長(L>M)。藉由採用如圖4(b)所示般的連接結構,相對於圖4(a)所示之連接結構,能夠使所需管板3的厚度變薄,以確保所需距離L。Furthermore, in this embodiment, as shown in FIG. 4(a) , the distance L from the outer surface of the
然而,在本實施形態之多管式熱交換器1中,如圖2所示,在相鄰之2根管5之間形成有作為凸部之突起3A。更詳細而言,如圖5詳細所示,在流入側的管板3的外表面的各圓孔3a的開口部周緣,分別一體突設有朝向反流入方向(圖5的左方)突出之型環狀的突起3A。該突起3A具有朝向反流入方向(圖5的左方)呈縮口狀之三角形縱截面形狀,其內周面形成朝向反流入方向擴徑的(朝向流入方向縮徑的)錐形平面。另外,各突起3A藉由切削金屬板來製作。However, in the
並且,在本實施形態中,如圖5詳細所示,將突起3A的周長W、亦即突起3A的斜面的長度b進行合算而得之值W=2b設定為比被處理流體中所包含之固態物m的長度M(參閱圖4)大(W>M)。Furthermore, in this embodiment, as shown in detail in FIG. 5 , the circumference W of the
又,將經由突起3A相鄰之2根管5的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M)。因此,在該等長度W與M及X之間,由下式表示之大小關係成立。Furthermore, the distance X between the two
W>M>X……(1)
另外,在本實施形態中,作為突起3A採用了具有三角形縱截面者,但是例如能夠採用具有梯形縱截面之突起、具有半圓形縱截面之突起等。順便說一下,在採用縱截面為梯形的突起之情形下,該突起的內周面形成朝向反流入方向擴徑之(朝向流入方向縮徑之)漏斗狀的錐形平面,在採用縱截面為半圓形的突起之情形下,該突起的內周面形成朝向反流入方向擴徑之(朝向流入方向縮徑之)喇叭狀(R狀)的錐形曲面。
W>M>X……(1)
In addition, in this embodiment, the
然而,本實施形態之多管式熱交換器1的流出側管板4、與其連接之管5的連接結構等與以往的多管式熱交換器的該等相同,因此省略關於其的說明。However, the outflow-
接著,對以上述方式構成之多管式熱交換器1的作用進行說明。Next, the operation of the
含有固態物m之飲料等被處理流體從圖1所示之被處理流體流入噴嘴8經由被處理流體流入口6a流入到集管6內,流入到集管6內之被處理流體從在管板3上開口之共計19個各圓孔3a(參閱圖2)流入到共計19根各管5(參閱圖3)內。與此同時,熱媒體從圖1所示之熱媒體流入噴嘴9經由熱媒體流入口2a流入到外殼2內的密閉空間S,並朝向圖1的左方流動,但是在該過程中,在其與流過各管5之被處理流體之間進行熱交換來對該被處理流體進行加熱或冷卻。並且,供於被處理流體的加熱或冷卻之熱媒體從外殼2內的密閉空間S經由熱媒體流出口2b從熱媒體流出噴嘴10排出到外殼2外。The fluid to be processed, such as beverages containing the solid matter m, flows into the
另一方面,在使各管5中朝向圖1的右方流動之過程中藉由熱媒體進行了加熱或冷卻之被處理流體經由與管板4連接之未圖示的配管排出到外殼2的外部。以下,重複與上述相同的作用,被處理流體藉由與熱媒體的熱交換而被連續加熱或冷卻。另外,在對被處理流體進行加熱之情形下,作為熱媒體使用熱水、蒸汽等熱媒,在對被處理流體進行冷卻之情形下,作為熱媒體使用冷水、濃鹽水等冷媒。On the other hand, the fluid to be processed that has been heated or cooled by the heat medium while flowing in each
以上,在本實施形態之多管式熱交換器1中,在相鄰之2根管5之間形成突起3A,將該突起3A的周長W設定為比被處理流體中所包含之固態物m的長度M更長(W>M),因此無需以比被處理流體中所包含之固態物m的長度尺寸M大的間隔尺寸配置管5即能夠防止產生被處理流體中所包含之固態物m的兩端橫跨在相鄰之2根管5內之現象。其結果,被處理流體中所包含之固態物m不會附著於管板3的圓孔3a的周圍而堆積,無需藉由清潔來去除堆積之固態物m。因此,該多管式熱交換器1的維護變得容易,並且可防止因固態物m堆積而使被處理流體的流量下降。As mentioned above, in the
並且,在本實施形態中,如圖5所示,將經由突起3A相鄰之2根管5之間的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M),因此不改變相鄰之2根管5的間距(軸中心管距離)P(參閱圖3及圖5)即能夠防止產生被處理流體中所包含之固態物m的兩端橫跨在相鄰之2根管5內之現象。因此,不會導致多管式熱交換器1的大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物m附著於管板3上而堆積。Furthermore, in this embodiment, as shown in FIG. 5 , the distance X between the two
又,在本實施形態中,沿著管板3的外表面的各圓孔3a的開口部周緣突設之突起3A的內周面形成朝向反流入方向擴徑(朝向流入方向縮徑)之錐形平面,因此如圖1及圖5中的箭頭所示,從集管6流向各管5之被處理流體被突起3A節流的同時變成縮流而流入到各管5。因此,流入到各管5之被處理流體的壓力損失被抑制成較小,防止產生被處理流體的流量不足等故障。Furthermore, in this embodiment, the inner circumferential surface of the
進而,在本實施形態中,如圖4所示,將從流入側的管板3的外表面到熔接銲珠a的流入側的端部的距離L設定為比被處理流體中所包含之固態物m的長度M更長(L>M),因此流入到各管5內之固態物m不會被熔接銲珠a卡住而堆積(參閱圖4),並且亦不會產生因各管5的流路面積減小而被處理流體的流量不足的問題。
Furthermore, in this embodiment, as shown in FIG. 4 , the distance L from the outer surface of the
另外,如前所述,在將突起3A的縱截面形狀設為梯形之情形下,該突起3A的內周面形成朝向流入方向縮徑之漏斗狀的錐形平面,在將突起3A的縱截面設為半圓形之情形下,該突起3A的內周面形成朝向流入方向縮徑之喇叭狀的錐形曲面(R曲面),因此在該等任何情形下,流入到各管5的被處理流體節流而變成縮流,因此被處理流體的壓力損失被抑制成較小。
In addition, as mentioned above, when the longitudinal cross-sectional shape of the
接著,以下依據圖6及圖7對本發明的實施形態2進行說明。
Next,
圖6係本實施形態之多管式熱交換器主要部分的縱向剖視圖,圖7係圖6的D部放大詳細圖,在該等圖中對與圖1~圖5中所示者相同的要素標註相同的元件符號,以下省略關於該等的再次說明。 Fig. 6 is a longitudinal sectional view of the main part of the multi-tube heat exchanger of this embodiment, and Fig. 7 is an enlarged detailed view of part D of Fig. 6. In these figures, the same elements as those shown in Figs. 1 to 5 are shown. The same component symbols are marked, and further description thereof will be omitted below.
在本實施形態之多管式熱交換器中,沿著在流入側的管板3形成之圓孔3a的開口部周緣形成錐形圓孔狀的擴孔3c,藉此如圖7中詳細所示,在管板3的外表面的
相鄰之2根管5(圓孔3a)之間分別形成有縱截面為梯形狀的凸部3B。並且,在管板3的各圓孔3a的開口部周緣形成之錐形圓孔狀(漏斗狀)的擴孔3c的內周面形成朝向反流入方向(圖6及圖7的左方)擴徑之(朝向流入方向縮徑之)錐形平面。另外,凸部3B藉由使用工具對在管板3形成之圓孔3a的開口部周緣進行擴孔加工而形成。
In the multi-tube heat exchanger of this embodiment, a tapered circular hole-like
在此,在本實施形態中,如圖7詳細所示,亦將凸部3B的周長W、亦即凸部3B的周面的長度c、d、e進行合算而得之值W=c+d+e設定為比被處理流體中所包含之固態物m的長度M大(W>M)。
Here, in this embodiment, as shown in detail in FIG. 7 , the circumferential length W of the
又,將經由凸部3B相鄰之2根管5的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M)。因此,在該等長度W與X及M之間,由前述(1)式表示之大小關係成立。
Furthermore, the distance X between the two
另外,其他結構與前述實施形態1的結構相同,因此省略關於其的圖示及說明。
In addition, other structures are the same as those of the
如前所述,在本實施形態中,亦將在相鄰之2根管5之間形成之凸部3B的周長W設定為比被處理流體中所包含之固態物m的長度M更長(W>M),因此無需以比被處理流體中所包含之固態物m的長度尺寸M大的間隔尺寸配置管5即能夠防止產生被處理流體中所包含之固態物m的兩端橫跨在相鄰之2根管5內之現象。其結果,被處理流體中所包含之固態物m不會附著於管板3的圓孔3a的周圍而堆積,無需藉由清潔來去除堆積之固態物m,從而該多管
式熱交換器1的維護變得容易,並且可防止因固態物m堆積而使被處理流體的流量下降。
As mentioned above, in this embodiment as well, the circumference W of the
並且,在本實施形態中,亦將經由凸部3B相鄰之2根管5之間的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M),因此無需以比被處理流體中所包含之固態物m的長度尺寸M大的間隔尺寸配置管5即能夠防止產生被處理流體中所包含之固態物m的兩端橫跨在相鄰之2根導熱管5內之現象。因此,不會導致多管式熱交換器1的大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物m附著於管板3上而堆積。
Furthermore, in this embodiment, the distance X between the two
又,在本實施形態中,沿著管板3的外表面的各圓孔3a的開口部周緣突設之凸部3B的內周面形成朝向反流入方向擴徑(朝向流入方向縮徑)之漏斗狀的錐形平面,因此如圖7中的箭頭所示,從集管6流向各管5之被處理流體被凸部3B節流的同時變成縮流而流入到各管5。因此,流入到各管5之被處理流體的壓力損失被抑制成較小,防止產生被處理流體的流量不足等故障。
Furthermore, in this embodiment, the inner peripheral surface of the
進而,在本實施形態中,亦採用了圖4所示之結構。亦即,將從流入側的管板3的外表面到熔接銲珠a的流入側的端部的距離L設定為比被處理流體中所包含之固態物m的長度M更長(L>M),因此流入到各管5內之固態物m不會被熔接銲珠a卡住而堆積,並且亦不會產生因各管5的流路面積減小而被處理流體的流量不足的問題。
Furthermore, in this embodiment, the structure shown in FIG. 4 is also adopted. That is, the distance L from the outer surface of the
接著,以下依據圖8對本實施形態的變形例進行說明。 Next, a modification of this embodiment will be described below based on FIG. 8 .
圖8係表示本實施形態之多管式熱交換器的變形例之主要部分縱向剖視圖(與圖7相同的圖),在本變形例中,作為凸部3C採用了具有半徑r的半圓形縱截面者。另外,為了在相鄰之2根管5之間形成縱截面半圓形的凸部3C,可以藉由擴孔加工在管板3形成之圓孔3a的開口部周緣形成錐形凹曲面狀(R曲面狀)的擴孔3d。在此,被處理流體流入到在管板3形成之圓孔3a之形狀、亦即擴孔3d的內周面的形狀形成朝向反流入方向擴徑之(朝向流入方向縮徑之)喇叭狀的圓弧曲面(R曲面)。
FIG. 8 is a longitudinal cross-sectional view of main parts of a modified example of the multi-tube heat exchanger of the present embodiment (the same view as FIG. 7 ). In this modified example, a semicircular shape with a radius r is used as the
在此,在本變形例中,亦將凸部3C的周長W(=π‧r)設定為比被處理流體中所包含之固態物m的長度M大(W>M)。
Here, also in this modification, the circumference W (=π‧r) of the
又,將經由凸部3C相鄰之2根管5的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M)。因此,在該等長度W與X及M之間,由下式表示之大小關係成立。
Furthermore, the distance X between the two
W>M>X……(2) W>M>X……(2)
如前所述,在本變形例中,亦在相鄰之2根管5之間形成凸部3C,並將該凸部3C的周長W設定為比被處理流體中所包含之固態物m的長度M更長(W>M),因此無需以比被處理流體中所包含之固態物m的長度尺寸M大的間隔尺寸配置管5即能夠防止產生被處理流體中所包含之固態物m
的兩端橫跨在相鄰之2根管5內之現象。其結果,被處理流體中所包含之固態物m不會附著於管板3的圓孔3a的周圍而堆積,無需藉由清潔來去除堆積之固態物,從而該多管式熱交換器1的維護變得容易,並且可防止因固態物m堆積而使被處理流體的流量下降。
As mentioned above, in this modification, the
並且,如前所述,在本變形例中,亦將經由凸部3C相鄰之2根管5之間的間隔尺寸X設定為比被處理流體中所包含之固態物m的長度M更短(X<M),因此無需以比被處理流體中所包含之固態物m的長度尺寸M大的間隔尺寸配置管5即能夠防止產生被處理流體中所包含之固態物m的兩端橫跨在相鄰之2根管5內之現象。因此,不會導致多管式熱交換器1的大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態物m附著於管板3上而堆積。
Furthermore, as mentioned above, in this modification, the distance X between the two
又,在本變形例中,由沿著管板3的外表面的各圓孔3a的開口部周緣形成之擴孔3d形成之凸部3C的內周面亦形成朝向反流入方向擴徑(朝向流入方向縮徑)之喇叭狀的錐形曲面(R曲面),因此如圖8中的箭頭所示,流向各管5之被處理流體被凸部3C節流的同時變成縮流而流入到各管5。因此,流入到各管5之被處理流體的壓力損失被抑制成較小,防止產生被處理流體的流量不足等故障。
Furthermore, in this modification, the inner peripheral surface of the
由以上說明明確可知,依據本發明,可獲得如下效果:不會導致多管式熱交換器1的大型化、成本增加而能夠以簡單的結構防止因被處理流體中所包含之固態
物m附著於管板3上而堆積。
As is clear from the above description, according to the present invention, the following effects can be obtained: without increasing the size and cost of the
另外,本發明的應用並不限定於以上說明之實施形態,當然在專利申請範圍及說明書和圖式中所記載之技術思想的範圍內能夠進行各種變形。 In addition, the application of the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made within the scope of the patent application and the technical ideas described in the specification and drawings.
1:多管式熱交換器 1:Multi-tube heat exchanger
2:外殼(罐身) 2: Shell (can body)
3,4:管板 3,4:Tube sheet
3A:突起(凸部) 3A:Protrusion (convex part)
3B,3C:凸部 3B, 3C: convex part
3a:圓孔 3a: round hole
3c,3d:擴孔 3c, 3d: Expansion
5:管(導熱管) 5: Tube (heat pipe)
L:從管板的外表面到導熱管的連接部的距離 L: The distance from the outer surface of the tube sheet to the connection part of the heat pipe
M:固態物的長度 M: length of solid object
m:固態物 m: solid matter
P:管的間距 P: pipe spacing
S:密閉空間 S: Confined space
W:凸部的周長 W: Perimeter of convex part
X:相鄰之管之間的間隔尺寸 X: the distance between adjacent tubes
[圖1]係本發明的實施形態1之多管式熱交換器的縱向剖視圖。
[圖2]係圖1的A部放大詳細圖。
[圖3]係沿著圖2的B-B線剖切之剖視圖。
[圖4]中,圖4(a)係表示導熱管與管板的連接結構之部分縱向剖視圖,圖4(b)係表示導熱管與管板的另一連接結構之部分縱向剖視圖。
[圖5]係圖2的C部放大詳細圖。
[圖6]係本發明的實施形態2之多管式熱交換器主要部分的縱向剖視圖。
[圖7]係圖6的D部放大詳細圖。
[圖8]係表示本發明的實施形態2之多管式熱交換器的變形例之主要部分縱向剖視圖(與圖7相同的圖)。
[Fig. 1] is a longitudinal sectional view of the multi-tube heat exchanger according to
3:管板 3: Tube sheet
3a:圓孔 3a: round hole
3C:凸部 3C:convex part
3d:擴孔 3d: Expansion
5:管 5: tube
P:管的間距 P: pipe spacing
r:半徑 r:radius
W:凸部的周長 W: Perimeter of convex part
X:相鄰之管之間的間隔尺寸 X: the distance between adjacent tubes
Claims (6)
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1183352A (en) * | 1997-09-05 | 1999-03-26 | Sanou Kogyo Kk | Heat exchanger |
CN1134647C (en) * | 1995-12-14 | 2004-01-14 | 利乐拉瓦尔集团及财务有限公司 | Improvements to shell-and-tube heat exchangers |
JP2016217654A (en) * | 2015-05-22 | 2016-12-22 | 三菱重工環境・化学エンジニアリング株式会社 | Heat exchanger |
CN109115008A (en) * | 2018-08-23 | 2019-01-01 | 四川省焱森炉业有限公司 | A kind of biomass boiler air preheater |
-
2021
- 2021-05-28 JP JP2021090513A patent/JP2022182783A/en active Pending
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- 2022-04-12 TW TW111113824A patent/TWI824478B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1134647C (en) * | 1995-12-14 | 2004-01-14 | 利乐拉瓦尔集团及财务有限公司 | Improvements to shell-and-tube heat exchangers |
JPH1183352A (en) * | 1997-09-05 | 1999-03-26 | Sanou Kogyo Kk | Heat exchanger |
JP2016217654A (en) * | 2015-05-22 | 2016-12-22 | 三菱重工環境・化学エンジニアリング株式会社 | Heat exchanger |
CN109115008A (en) * | 2018-08-23 | 2019-01-01 | 四川省焱森炉业有限公司 | A kind of biomass boiler air preheater |
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