TWI824478B - Multi-tube heat exchanger - Google Patents

Multi-tube heat exchanger Download PDF

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TWI824478B
TWI824478B TW111113824A TW111113824A TWI824478B TW I824478 B TWI824478 B TW I824478B TW 111113824 A TW111113824 A TW 111113824A TW 111113824 A TW111113824 A TW 111113824A TW I824478 B TWI824478 B TW I824478B
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tube
fluid
processed
heat exchanger
heat transfer
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TW202246719A (en
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福谷𨺓伸
小田切輝
入江創太
田村健太
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日商伊勢美食品機械股份有限公司
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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

多管式熱交換器Multi-tube heat exchanger

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 Patent Document 1, the inflow side end portion of the heat transfer tube protruding from the tube plate is covered with a detachable guide plate to prevent foreign matter from adhering to the heat exchanger on the portion protruding from the tube plate of the heat transfer tube. Been proposed.

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, Patent Document 2 proposes a multi-tube heat exchanger in which heat transfer tubes (liquid flow tubes) are arranged at intervals larger than the length of solid matter contained in the fluid to be processed. [Prior technical literature]

[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 Patent Document 1, a plurality of bolts are needed to install the guide plate on the tube sheet. In addition to the troublesome installation/disassembly, parts such as the guide plate and bolts are also required as separate parts. , so there is a problem that the number of parts increases, resulting in structural duplication and cost increase. Furthermore, in this heat exchanger, the arrangement interval of the heat transfer tubes is not mentioned, so solid matter contained in the fluid to be processed may adhere to the guide plate.

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 Patent Document 2, the heat transfer tubes (liquid flow tubes) are arranged at intervals larger than the length of the solid matter contained in the fluid to be processed. Therefore, the heat transfer tubes are accommodated. The problem is that the diameter of the tube body (shell) becomes larger and the multi-tube heat exchanger becomes larger.

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。 <Embodiment 1> Fig. 1 is a longitudinal sectional view of the multi-tube heat exchanger according to Embodiment 1 of the present invention; Fig. 2 is an enlarged detailed view of part A of Fig. 1; Fig. 3 is a sectional view taken along line B-B of Fig. 2; Fig. 4 ( a) is a partial longitudinal sectional view showing the connection structure between the heat transfer tube and the tube plate. Figure 4(b) is a partial longitudinal sectional view showing another connection structure between the heat transfer tube and the tube plate. Figure 5 is an enlarged detailed view of part C in Figure 2 .

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 multi-tube heat exchanger 1 of this embodiment is provided with a horizontal cylindrical tank body (hereinafter referred to as "casing") 2. Both axial ends of the shell 2 (in FIG. 1 The openings at both left and right ends are covered by a pair of disc-shaped tube plates 3 and 4 (a pair of left and right ends in FIG. 1 ). Moreover, in the casing 2, a sealed space S is defined by a pair of left and right tube plates 3 and 4, and a plurality of heat transfer tubes (hereinafter referred to as "tubes") 5 are installed horizontally and parallel to each other on the pair of tube plates 3 and 4. The state between 4 is stored in the closed space S. Specifically, as shown in FIG. 3 , a total of 19 tubes 5 are housed in the sealed space S in a state of being neatly arranged at equal intervals (distance between axis centers) P. In addition, in this embodiment, SUS304 is used as the material of the outer casing 2 , and SUS316L is used as the material of the tube sheets 3 and 4 and the tube 5 . Furthermore, although not shown in the figure, the housing 2 is divided into two parts at the middle part in the longitudinal direction, and the two divided parts are connected by an expansion joint for absorbing thermal expansion or contraction of the housing 2 .

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-shaped header 6 is installed next to one side (the left side of Figures 1 and 2) of the tube plate 3, and a round hole is formed at the bottom of the header 6 The fluid to be processed flows into the inlet 6a. A sealing ring 7 (see Figure 2) such as an O-ring is installed between the contact surface of the header 6 and the tubesheet 3. The sealing effect of the sealing ring 7 ensures a high degree of safety between the header 6 and the tubesheet 3. Tightness. Furthermore, a to-be-processed fluid inflow nozzle 8 is connected to the to-be-processed fluid inflow port 6a of the header 6. In addition, in this embodiment, beverages such as fruit juice drinks and vegetable juices are used as the fluid to be processed. Examples of solid matter contained in these beverages include dietary fiber, juice capsules (fruit pieces), coconut fruits, and the like. Furthermore, in the multi-tube heat exchanger 1 of this embodiment, as will be described later, the fluid to be processed flows into each tube 5 from the left side in FIG. 1 and flows from the left to the right in each tube 5. However, as follows: The left side of Figure 1 is called the "inflow side" and the right side is called the "outflow side".

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 heat medium inlet 2 a is opened in the upper portion of the housing 2 close to the tube plate 4 on the outflow side, and a heat medium inlet nozzle 9 is connected to the heat medium inlet 2 a. In addition, a circular hole-shaped heat medium outflow port 2b is opened in the lower portion of the housing 2 close to the tube plate 3 on the inflow side, and the heat medium outflow nozzle 10 is connected to the heat medium outflow port 2b.

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 tube 5 and the tube plate 3 is shown in FIG. 4(a) , but a total of 19 circular holes 3a are formed in the tube plate 3 (in FIG. 4(a) Only one is shown in the figure), and one end of the inflow side of each tube 5 is inserted into each circular hole 3 a from the inside of the tube plate 3 . Specifically, a small diameter portion 3a1 and a large diameter portion 3a2 with different diameters are formed in the circular hole 3a formed in the tube plate 3, and one end of the inflow side of the tube 5 starts from the closed space S side (Fig. The right side) is inserted into the large diameter portion 3a2 of the circular hole 3a, and the inner peripheral portion of the end of the inserted tube 5 is welded, whereby the inflow-side end of each tube 5 is connected to the tube plate 3 respectively. In this way, the pipe 5 is inserted into the large-diameter portion 3a2 of the circular hole 3a of the tube plate 3 and connected by welding, whereby the small-diameter portion 3a1 of the circular hole 3a and the inner peripheral surface of the pipe 5 are connected straight and straight without any step difference. . In addition, in Fig. 4(a), a represents a welded bead.

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 tube sheet 3 on the inflow side to the end of the inflow side of the welded bead a is set to be longer than the distance in the fluid to be processed. The length M of the included solid object m is longer (L>M). In addition, another example of the connection structure of each tube 5 and the tube plate 3 is shown in FIG. 4(b) . However, in this connection structure, the periphery of the one end opening of each circular hole 3a on the inner surface of the tube plate 3 is integrally formed. The cylindrical lip 3b is inserted into the large-diameter portion 3a2 of the circular hole 3a formed with the end of the pipe 5, and the inner periphery of the abutting portion is welded. One end of the inflow side of each tube 5 is connected to the tube plate 3 . At this time, the distance L from the outer surface of the tube sheet 3 to the end of the inflow side of the welded bead a is set to be longer than the length M of the solid object m (L>M). By adopting a connection structure as shown in Figure 4(b), compared to the connection structure shown in Figure 4(a), the required thickness of the tube sheet 3 can be made thinner to ensure the required distance L.

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 multi-tube heat exchanger 1 of this embodiment, as shown in FIG. 2 , a protrusion 3A as a protrusion is formed between two adjacent tubes 5 . More specifically, as shown in detail in FIG. 5 , at the periphery of the opening of each circular hole 3 a on the outer surface of the tube sheet 3 on the inflow side, there are integrally provided projecting holes protruding toward the reverse inflow direction (left side in FIG. 5 ). Ring-shaped protrusion 3A. This protrusion 3A has a triangular longitudinal cross-sectional shape that narrows toward the reverse inflow direction (left side in FIG. 5 ), and its inner peripheral surface forms a tapered plane whose diameter expands toward the reverse inflow direction (or decreases in diameter toward the inflow direction). In addition, each protrusion 3A is produced by cutting a metal plate.

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 protrusion 3A, that is, the summed value W=2b of the slope length b of the protrusion 3A, is set to be longer than the length b contained in the fluid to be processed. The length M (see Figure 4) of the solid object m is large (W>M).

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 adjacent tubes 5 via the protrusion 3A is set to be shorter than the length M of the solid matter m contained in the fluid to be processed (X<M). Therefore, between the lengths W, M, and X, the size relationship expressed by the following formula is established.

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 protrusion 3A has a triangular longitudinal section. However, for example, a protrusion having a trapezoidal longitudinal section, a protrusion having a semicircular longitudinal section, or the like can be used. By the way, when a protrusion with a trapezoidal longitudinal cross section is used, the inner circumferential surface of the protrusion forms a funnel-shaped tapered plane that expands in diameter toward the reverse inflow direction (contracts in diameter toward the inflow direction). When a protrusion with a longitudinal cross section is used, In the case of a semicircular protrusion, the inner circumferential surface of the protrusion forms a trumpet-shaped (R-shaped) tapered curved surface that expands in diameter toward the reverse inflow direction (contracts in diameter toward the inflow direction).

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-side tube plate 4 of the multi-tube heat exchanger 1 of this embodiment, the connection structure of the tubes 5 connected thereto, etc. are the same as those of the conventional multi-tube heat exchanger, and therefore the description thereof is omitted.

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 multi-tube heat exchanger 1 configured as above will be described.

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 header 6 from the fluid to be processed inlet nozzle 8 shown in FIG. 1 through the fluid to be processed inlet 6a. A total of 19 circular holes 3a (see Figure 2) opened on 3 flow into a total of 19 tubes 5 (see Figure 3). At the same time, the heat medium flows from the heat medium inflow nozzle 9 shown in Figure 1 through the heat medium inlet 2a into the sealed space S in the housing 2, and flows toward the left in Figure 1. However, during this process, Heat is exchanged with the fluid to be processed flowing through each tube 5 to heat or cool the fluid to be processed. Then, the heat medium used for heating or cooling the fluid to be processed is discharged from the sealed space S in the housing 2 to the outside of the housing 2 through the heat medium outflow port 2 b from the heat medium outflow nozzle 10 .

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 tube 5 toward the right in FIG. external. Next, the same action as above is repeated, and the fluid to be processed is continuously heated or cooled by heat exchange with the heat medium. When the fluid to be processed is heated, a heating medium such as hot water or steam is used as the heating medium. When the fluid to be processed is cooled, a refrigerant such as cold water or concentrated brine is used as the heating medium.

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 multi-tube heat exchanger 1 of this embodiment, the protrusion 3A is formed between the two adjacent tubes 5, and the circumference W of the protrusion 3A is set to be longer than the solid matter contained in the fluid to be processed. The length M of m is longer (W>M), so it is possible to prevent the generation of solid matter contained in the fluid to be processed without arranging the pipes 5 at intervals larger than the length dimension M of the solid matter m contained in the fluid to be processed. The phenomenon that the two ends of m span across two adjacent pipes 5. As a result, the solid matter m contained in the fluid to be processed does not adhere to and accumulate around the circular hole 3a of the tube sheet 3, and there is no need to remove the accumulated solid matter m by cleaning. Therefore, the maintenance of the multi-tube heat exchanger 1 becomes easy, and it is possible to prevent the flow rate of the fluid to be processed from decreasing due to the accumulation of solid matter m.

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 adjacent tubes 5 via the protrusion 3A is set to be shorter than the length M of the solid matter m contained in the fluid to be processed ( ( The phenomenon of straddling two adjacent tubes 5. Therefore, it is possible to prevent the solid matter m contained in the fluid to be processed from adhering to the tube sheet 3 and accumulating with a simple structure without increasing the size and cost of the multi-tube heat exchanger 1 .

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 protrusion 3A protruding along the edge of the opening of each circular hole 3a on the outer surface of the tube plate 3 forms a taper that expands in diameter toward the reverse inflow direction (contracts in diameter toward the inflow direction). Therefore, as shown by the arrows in FIGS. 1 and 5 , the fluid to be processed flowing from the header 6 to each tube 5 is throttled by the protrusion 3A and becomes a contracted flow and flows into each tube 5 . Therefore, the pressure loss of the fluid to be processed flowing into each tube 5 is suppressed to a small value, thereby preventing malfunctions such as insufficient flow rate of the fluid to be processed from occurring.

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 tube sheet 3 on the inflow side to the end of the inflow side of the welded bead a is set to be longer than the solid state contained in the fluid to be processed. The length M of the object m is longer (L>M), so the solid object m flowing into each tube 5 will not be stuck and accumulated by the welding bead a (see Figure 4), and there will be no problems caused by each tube 5 The flow path area is reduced and the flow rate of the fluid to be processed is insufficient.

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 protrusion 3A is trapezoidal, the inner peripheral surface of the protrusion 3A forms a funnel-shaped tapered plane whose diameter decreases toward the inflow direction. In the case of a semicircular shape, the inner circumferential surface of the protrusion 3A forms a trumpet-shaped tapered curved surface (R-curved surface) whose diameter decreases toward the inflow direction. Therefore, in any of these cases, the processed material flowing into each tube 5 The fluid is throttled and becomes a vena contracta, so the pressure loss of the fluid to be processed is suppressed to a small value.

<實施形態2> <Embodiment 2>

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, Embodiment 2 of the present invention will be described below based on FIGS. 6 and 7 .

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 enlarged hole 3c is formed along the opening edge of the circular hole 3a formed in the tube plate 3 on the inflow side, as shown in detail in FIG. 7 shown, on the outer surface of tube sheet 3 A convex portion 3B having a trapezoidal longitudinal cross-section is formed between two adjacent tubes 5 (round holes 3a). Furthermore, the inner circumferential surface of the tapered circular hole-shaped (funnel-shaped) expanded hole 3c formed at the periphery of the opening portion of each circular hole 3a of the tube plate 3 is formed to expand toward the reverse inflow direction (the left side of Figs. 6 and 7). The diameter of the tapered plane (which decreases in diameter toward the inflow direction). In addition, the convex portion 3B is formed by enlarging the peripheral edge of the opening of the circular hole 3a formed in the tube plate 3 using a tool.

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 convex portion 3B, that is, the lengths c, d, and e of the peripheral surface of the convex portion 3B is also calculated to obtain a value W=c +d+e is set to be larger than the length M of the solid matter m contained in the fluid to be processed (W>M).

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 adjacent tubes 5 via the convex portion 3B is set to be shorter than the length M of the solid matter m contained in the fluid to be processed (X<M). Therefore, between the lengths W, X, and M, the size relationship expressed by the aforementioned equation (1) holds.

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 aforementioned Embodiment 1, and therefore illustration and description thereof are omitted.

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 convex portion 3B formed between the two adjacent tubes 5 is set to be longer than the length M of the solid matter m contained in the fluid to be processed. (W>M), it is possible to prevent the solid matter m contained in the fluid to be processed from crossing both ends without arranging the pipes 5 at intervals larger than the length M of the solid matter m contained in the fluid to be processed. The phenomenon in two adjacent tubes 5. As a result, the solid matter m contained in the fluid to be processed does not adhere to and accumulate around the circular hole 3a of the tube plate 3, and there is no need to remove the accumulated solid matter m by cleaning, so that the multi-tube The maintenance of the type heat exchanger 1 becomes easy, and a decrease in the flow rate of the fluid to be processed due to the accumulation of solid matter m can be prevented.

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 adjacent tubes 5 via the convex portion 3B is set to be shorter than the length M of the solid matter m contained in the fluid to be processed (X<M) , it is possible to prevent the two ends of the solid matter m contained in the fluid to be processed from straddling the adjacent ones without arranging the pipes 5 at intervals larger than the length dimension M of the solid matter m contained in the fluid to be processed. The phenomenon inside the heat pipe 5. Therefore, it is possible to prevent the solid matter m contained in the fluid to be processed from adhering to the tube sheet 3 and accumulating with a simple structure without increasing the size and cost of the multi-tube heat exchanger 1 .

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 convex portion 3B protruding along the periphery of the opening of each circular hole 3a on the outer surface of the tube plate 3 is formed to expand in diameter toward the reverse inflow direction (to decrease in diameter toward the inflow direction). Because of the funnel-shaped tapered plane, as shown by the arrows in FIG. 7 , the fluid to be processed flowing from the header 6 to each tube 5 is throttled by the convex portion 3B and becomes a contracted flow and flows into each tube 5 . Therefore, the pressure loss of the fluid to be processed flowing into each tube 5 is suppressed to a small value, thereby preventing malfunctions such as insufficient flow rate of the fluid to be processed from occurring.

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 tube sheet 3 on the inflow side to the inflow-side end of the welded bead a is set to be longer than the length M of the solid matter m contained in the fluid to be processed (L>M ;

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 convex portion 3C. Longitudinal section. In addition, in order to form the convex portion 3C with a semicircular longitudinal cross-section between two adjacent tubes 5, a tapered concave curved surface shape ( R curved hole expansion 3d. Here, the shape of the circular hole 3a formed in the tube sheet 3, that is, the shape of the inner peripheral surface of the expanded hole 3d, in which the fluid to be processed flows into, is a trumpet shape whose diameter is enlarged in the reverse inflow direction (and whose diameter is reduced in the inflow direction). Arc surface (R surface).

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 convex portion 3C is set to be larger than the length M of the solid object m contained in the fluid to be processed (W>M).

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 adjacent tubes 5 via the convex portion 3C is set to be shorter than the length M of the solid matter m contained in the fluid to be processed (X<M). Therefore, between the lengths W, X and M, the size relationship expressed by the following formula is established.

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 convex portion 3C is formed between the two adjacent tubes 5, and the circumference W of the convex portion 3C is set to be longer than the solid matter m contained in the fluid to be processed. The length M is longer (W>M), so the solid matter m contained in the fluid to be processed can be prevented from being generated without arranging the tubes 5 at intervals larger than the length dimension M of the solid matter m contained in the fluid to be processed. The two ends of the pipe span across two adjacent pipes 5. As a result, the solid matter m contained in the fluid to be processed does not adhere to and accumulate around the circular hole 3a of the tube plate 3, and there is no need to remove the accumulated solid matter by cleaning, so that the multi-tube heat exchanger 1 Maintenance becomes easy, and it is possible to prevent the flow rate of the fluid being processed from decreasing due to the accumulation of solid matter m.

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 adjacent tubes 5 via the convex portion 3C is set to be shorter than the length M of the solid matter m contained in the fluid to be processed. (x The phenomenon in two adjacent tubes 5. Therefore, it is possible to prevent the solid matter m contained in the fluid to be processed from adhering to the tube sheet 3 and accumulating with a simple structure without increasing the size and cost of the multi-tube heat exchanger 1 .

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 convex portion 3C formed by the enlarged hole 3d formed along the opening periphery of each circular hole 3a on the outer surface of the tube plate 3 is also formed to expand in diameter toward the reverse inflow direction (toward the reverse flow direction). Therefore, as shown by the arrows in FIG. 8 , the fluid to be processed flowing to each tube 5 is throttled by the convex portion 3C and becomes a contracted flow and flows into each tube. tube 5. Therefore, the pressure loss of the fluid to be processed flowing into each tube 5 is suppressed to a small value, thereby preventing malfunctions such as insufficient flow rate of the fluid to be processed from occurring.

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 multi-tube heat exchanger 1, it is possible to prevent the occurrence of solid particles contained in the fluid to be processed with a simple structure. The object m adheres to the tube sheet 3 and accumulates.

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 Embodiment 1 of the present invention. [Fig. 2] An enlarged detailed view of part A in Fig. 1. [Fig. 3] is a cross-sectional view taken along line B-B in Fig. 2. [Fig. 4], Fig. 4(a) is a partial longitudinal sectional view showing the connection structure of the heat transfer pipe and the tube plate, and Fig. 4(b) is a partial longitudinal sectional view showing another connection structure of the heat transfer pipe and the tube plate. [Fig. 5] This is an enlarged detailed view of part C in Fig. 2. [Fig. 6] is a longitudinal sectional view of the main part of the multi-tube heat exchanger according to Embodiment 2 of the present invention. [Fig. 7] An enlarged detailed view of part D in Fig. 6. [Fig. 8] is a main part longitudinal cross-sectional view showing a modification of the multi-tube heat exchanger according to Embodiment 2 of the present invention (the same view as Fig. 7).

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)

一種多管式熱交換器，其中，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，將經由前述凸部相鄰之2根前述導熱管之間的間隔尺寸設定為比前述固態物的長度更短。 A multi-tube heat exchanger in which a plurality of heat transfer tubes are installed in a sealed space defined by a tank body and tube plates covering the openings at both axial ends of the tank body. The fluid to be processed is heated or cooled through heat exchange between the fluid to be processed in the plurality of heat transfer tubes and the heat medium flowing through the enclosed space. The characteristic of the multi-tube heat exchanger is that in the phase A convex portion is formed between two adjacent heat transfer tubes, 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, and the two adjacent heat transfer tubes are connected through the convex portion. The distance between the tubes is set to be shorter than the length of the solid object. 一種多管式熱交換器，其中，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，前述導熱管將其軸向兩端部***到在前述管板形成之孔中而連接，前述凸部由在前述被處理流體流入側的前述管板形成之前述孔的開口部周緣突設之突起構成。 A multi-tube heat exchanger in which a plurality of heat transfer tubes are installed in a sealed space defined by a tank body and tube plates covering the openings at both axial ends of the tank body. The fluid to be processed is heated or cooled through heat exchange between the fluid to be processed in the plurality of heat transfer tubes and the heat medium flowing through the enclosed space. The characteristic of the multi-tube heat exchanger is that in the phase A protrusion is formed between two adjacent heat transfer tubes, and the circumference of the protrusion is set to be longer than the length of the solid matter contained in the fluid to be processed. The two axial ends of the heat transfer tube are inserted into The protruding portion is connected to a hole formed in the tube plate, and the protrusion is formed by a protrusion protruding from the periphery of an opening of the hole formed in the tube plate on the side where the fluid to be processed flows. 如請求項2所述之多管式熱交換器，其中前述突起的內周面形成朝向前述被處理流體的反流入方向擴徑的錐形平面或錐形曲面。 The multi-tube heat exchanger according to claim 2, wherein the inner peripheral surface of the protrusion forms a tapered flat surface or a tapered curved surface that expands in diameter toward the reverse inflow direction of the fluid to be processed. 如請求項1所述之多管式熱交換器，其中前述導熱管將其軸向兩端部***到在前述管板形成之孔中而連接，前述凸部藉由沿著在前述被處理流體流入側的前述管板形成之前述孔的開口部周緣形成擴孔而構成。 The multi-tube heat exchanger according to claim 1, wherein the heat transfer tubes are connected by inserting their axial ends into holes formed in the tube plates, and the convex portions are formed along the fluid to be processed. The tube plate on the inflow side is formed by forming an enlarged hole at the periphery of the opening of the hole. 如請求項4所述之多管式熱交換器，其中前述擴孔的內周面形成朝向前述被處理流體的反流入方向擴徑的錐形平面或錐形曲面。 The multi-tube heat exchanger according to claim 4, wherein the inner peripheral surface of the enlarged hole forms a tapered plane or a tapered curved surface that expands in diameter toward the reverse inflow direction of the fluid to be processed. 如請求項2所述之多管式熱交換器，其中將從前述被處理流體流入側的前述管板的外表面到前述導熱管與該管板的連接端的距離設定為比前述固態物的長度更長。 The multi-tube heat exchanger according to claim 2, wherein the distance from the outer surface of the tube plate on the inflow side of the fluid to be processed to the connecting end of the heat transfer tube and the tube plate is set to be longer than the length of the solid object longer.
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Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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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