CN106440882A - Trapezoidal tilted baffle plate shell and tube type heat exchanger - Google Patents

Trapezoidal tilted baffle plate shell and tube type heat exchanger Download PDF

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CN106440882A
CN106440882A CN201611043880.6A CN201611043880A CN106440882A CN 106440882 A CN106440882 A CN 106440882A CN 201611043880 A CN201611043880 A CN 201611043880A CN 106440882 A CN106440882 A CN 106440882A
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trapezoidal
baffles
shell
heat exchanger
heat exchange
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CN106440882B (en
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古新
罗元坤
熊晓朝
王永庆
秦晓柯
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Zhengzhou University
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Zhengzhou University
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    • 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
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16Heat-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
    • F28D7/1607Heat-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 with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/24Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

本发明提供了一种类梯形倾斜折流板管壳式换热器,它包括壳体、换热管、管板、拉杆和类梯形折流板,相邻的两组类梯形折流板正交布置,每组包括至少两个平行的类梯形折流板,所述类梯形折流板对应所述换热管均布若干孔,所述换热管穿过所述孔设置,所述类梯形折流板倾斜设置;所述类梯形折流板边缘对应所述拉杆均布有定管孔,所述拉杆穿过所述定管孔和所述壳体卡接,所述拉杆外套有定管距,所述定管距通过螺栓固定在所述拉杆上。该类梯形倾斜折流板管壳式换热器可以有效提高换热效率且易于加工,具有广阔的应用前景。

The invention provides a shell-and-tube heat exchanger with trapezoidal inclined baffles, which includes a shell, heat exchange tubes, tube sheets, pull rods and trapezoidal baffles, and two adjacent sets of trapezoidal baffles are orthogonal to each other. Arrangement, each group includes at least two parallel trapezoidal baffles, the trapezoidal baffles are uniformly distributed with a number of holes corresponding to the heat exchange tubes, the heat exchange tubes pass through the holes, the trapezoidal baffles The baffles are arranged obliquely; the edges of the trapezoidal baffles are evenly distributed with fixed pipe holes corresponding to the tie rods, the tie rods pass through the fixed pipe holes and are clamped with the housing, and the tie rods are covered with fixed pipes The fixed pipe distance is fixed on the pull rod by bolts. This type of shell-and-tube heat exchanger with trapezoidal inclined baffles can effectively improve heat exchange efficiency and is easy to process, and has broad application prospects.

Description

类梯形倾斜折流板管壳式换热器Quasi-trapezoidal inclined baffle shell and tube heat exchanger

技术领域technical field

本发明涉及换热器领域,具体涉及一种类梯形倾斜折流板管壳式换热器。The invention relates to the field of heat exchangers, in particular to a trapezoidal inclined baffle shell-and-tube heat exchanger.

背景技术Background technique

随着经济和工业的快速发展,世界各国面临着能源短缺的问题,所以如何高效利用已有能源是各国人们日益关注的焦点。其中,换热器不仅能合理调节工艺介质的的温度以满足工艺流程的需要,也是余热、废热回收利用的有效装置。目前,应用较广泛的换热器为管壳式换热器。然而,由于结构原因致使壳程存在较大的流动死区和沿程压降。With the rapid development of economy and industry, countries all over the world are facing the problem of energy shortage, so how to efficiently use existing energy is the focus of people's increasing attention. Among them, the heat exchanger can not only reasonably adjust the temperature of the process medium to meet the needs of the process, but also an effective device for waste heat and waste heat recovery and utilization. At present, the most widely used heat exchanger is the shell and tube heat exchanger. However, due to structural reasons, there is a large flow dead zone and pressure drop along the shell side.

为了解决上述问题,近年来,业界开发了一些使用螺旋折流板的新型管壳式换热器,螺旋折流板使壳侧流体呈螺旋状流动,从而克服了弓形折流板换热器的缺点,不仅降低了流动阻力,而且促进了强化传热。例如,现有一种采用连续曲面的连续螺旋折流板换热器,相对弓形折流板换热器而言,该种换热器可以有效减小流动阻力及漏流。但是,连续螺旋折流板换热器的加工工艺较为复杂,不易生产。In order to solve the above problems, in recent years, some new shell-and-tube heat exchangers using spiral baffles have been developed in the industry. The disadvantage is that it not only reduces the flow resistance, but also promotes enhanced heat transfer. For example, there is a continuous spiral baffle heat exchanger with continuous curved surface. Compared with the arcuate baffle heat exchanger, this kind of heat exchanger can effectively reduce flow resistance and leakage. However, the processing technology of the continuous spiral baffle heat exchanger is relatively complicated and difficult to produce.

发明内容Contents of the invention

本发明的目的是针对现有技术的不足,从而提供一种流动阻力小、换热效率高且易于加工的类梯形倾斜折流板管壳式换热器。The purpose of the present invention is to address the shortcomings of the prior art, thereby providing a trapezoidal inclined baffle shell-and-tube heat exchanger with small flow resistance, high heat exchange efficiency and easy processing.

一种类梯形倾斜折流板管壳式换热器,包括壳体、换热管、管板、拉杆和多组类梯形折流板,相邻的两组所述类梯形折流板正交布置,每组包括至少两个平行的类梯形折流板,所述类梯形折流板对应所述换热管均布若干孔,所述换热管穿过所述孔设置,所述类梯形折流板倾斜设置;所述类梯形折流板通过拉杆固定,各类梯形折流板之间通过定距管定距。A shell-and-tube heat exchanger with trapezoidal inclined baffles, including a shell, heat exchange tubes, tube sheets, tie rods and multiple sets of trapezoidal baffles, and two adjacent sets of trapezoidal baffles are arranged orthogonally , each group includes at least two parallel trapezoidal baffles, the trapezoidal baffles are uniformly distributed with a number of holes corresponding to the heat exchange tubes, the heat exchange tubes pass through the holes, and the trapezoidal baffles The baffles are arranged obliquely; the trapezoidal baffles are fixed by pull rods, and the distances between various trapezoidal baffles are fixed by distance tubes.

基于上述,所述类梯形折流板与所述换热管夹角为,20°≤≤70°。Based on the above, the angle between the trapezoidal baffle and the heat exchange tube is , 20°≤ ≤70°.

基于上述,每组包括两个类梯形折流板,所述类梯形折流板是由椭圆板从长轴两端分别切去高为和高为的弓形板制得的;其中R为所述壳体的半径,所述椭圆板的长轴为,短轴为2R。Based on the above, each group includes two trapezoidal baffles, and the trapezoidal baffles are cut from the two ends of the long axis of the elliptical plate with a height of He Gaowei made of arcuate plates; where R is the radius of the shell, and the major axis of the elliptical plate is , the minor axis is 2R.

基于上述,每组内所述类梯形折流板间距为Based on the above, the distance between the quasi-trapezoidal baffles in each group is .

基于上述,每组包括三个类梯形折流板,每组中间的类梯形折流板是由从长轴两端的顶点分别切去高为的弓形板制得的;每组中间的类梯形折流板是由椭圆板从长轴两端的顶点分别切去高为和高为的弓形板制得的;其中R为所述壳体的半径,所述椭圆板的长轴为,短轴为2R。Based on the above, each group includes three trapezoidal baffles, and the trapezoidal baffles in the middle of each group are cut from the vertices at both ends of the long axis to a height of The bow-shaped plates are made; the trapezoidal baffles in the middle of each group are cut from the vertices of the two ends of the long axis of the elliptical plate with a height of He Gaowei made of arcuate plates; where R is the radius of the shell, and the major axis of the elliptical plate is , the minor axis is 2R.

基于上述,每组内所述类梯形折流板间距为Based on the above, the distance between the quasi-trapezoidal baffles in each group is .

基于上述,相间的两组所述类梯形折流板平行或对称布置。Based on the above, two sets of alternate trapezoidal baffles are arranged in parallel or symmetrically.

基于上述,所述换热管穿过所述孔且与所述类梯形折流板的夹角为45°。Based on the above, the included angle between the heat exchange tube passing through the hole and the trapezoidal baffle is is 45°.

本发明相对现有技术具有实质性特点和进步,具体地说,本发明具有以下优点:Compared with the prior art, the present invention has substantive characteristics and progress, specifically, the present invention has the following advantages:

1. 相邻的两组所述类梯形折流板正交布置,使得壳程流体在一组所述类梯形折流板以一个方向流动后,在流过下一组所述类梯形倾斜折流板又以另一方向流动,这种连续周期性的改变流体流动方向,增强壳程流体参混程度,对壳程流体扰动效果明显,增加壳程流体的平均流速和湍动程度,提高了换热效率,同时所述类梯形折流板斜向流动相比于弓形折流板的横向流动减小了流动阻力,壳程压降大幅降低,而且在加工制造方面克服了连续螺旋折流板换热器不易加工的缺点。1. The adjacent two sets of trapezoidal-like baffles are arranged orthogonally, so that the shell-side fluid flows in one direction after one set of trapezoidal-like baffles flows through the next set of trapezoidal-like inclined baffles. The flow plate flows in another direction. This continuous periodical change of the fluid flow direction enhances the mixing degree of the shell-side fluid, which has a significant disturbance effect on the shell-side fluid, increases the average flow velocity and turbulence of the shell-side fluid, and improves the At the same time, the oblique flow of the trapezoidal baffle reduces the flow resistance compared with the lateral flow of the bow baffle, and the pressure drop of the shell side is greatly reduced, and it overcomes the continuous spiral baffle in terms of processing and manufacturing. The disadvantage that the heat exchanger is not easy to process.

2. 经过对换热器数值模拟计算,在壳程质量流量为3.5kg/s~16kg/s时,本发明的类梯形折流板换热器相比弓形折流板换热器,压降降低24.7%~36.6%,换热系数提高1.3%~2.4%,单位壳程压降下的换热系数提高26.8%~36.9%;和连续螺旋折流板换热器相比,压降降低23%~32.9%,换热系数降低1.6%~2.1%,单位壳程压降下的换热系数提高20.5%~30%,因此,本发明类梯形折流板换热器可以有效降低压降,提高换热系数和综合性能。2. After the numerical simulation calculation of the heat exchanger, when the shell-side mass flow rate is 3.5kg/s-16kg/s, the pressure drop of the trapezoidal baffle heat exchanger of the present invention is lower than that of the bow-shaped baffle heat exchanger. Reduced by 24.7% to 36.6%, the heat transfer coefficient increased by 1.3% to 2.4%, and the heat transfer coefficient under the unit shell side pressure drop increased by 26.8% to 36.9%; compared with the continuous spiral baffle heat exchanger, the pressure drop is reduced by 23% %~32.9%, the heat transfer coefficient is reduced by 1.6%~2.1%, and the heat transfer coefficient under the unit shell side pressure drop is increased by 20.5%~30%. Therefore, the trapezoidal baffle heat exchanger of the present invention can effectively reduce the pressure drop, Improve heat transfer coefficient and comprehensive performance.

3. 相邻两组所述类梯形折流板正交布置,所述类梯形折流板通过拉杆固定,各类梯形折流板之间通过定距管定距,可以对换热管在横向和纵向位置上进行支撑和定位,避免由于振动对换热器造成的损伤。3. The adjacent two groups of trapezoidal baffles are arranged orthogonally. The trapezoidal baffles are fixed by tie rods. Support and position in the vertical and longitudinal positions to avoid damage to the heat exchanger due to vibration.

附图说明Description of drawings

图1为实施例1中类梯形倾斜折流板管壳式换热器的内部结构示意图。FIG. 1 is a schematic diagram of the internal structure of the trapezoidal inclined baffle shell-and-tube heat exchanger in Embodiment 1.

图2为一组类梯形折流板的主视图。Fig. 2 is a front view of a set of quasi-trapezoidal baffles.

图3为图2的右视图。Fig. 3 is a right side view of Fig. 2 .

图4为实施例1中相邻两组所述类梯形折流板正交布置的结构示意图。FIG. 4 is a schematic structural diagram of the orthogonal arrangement of two adjacent sets of trapezoidal baffles in Embodiment 1. FIG.

图5为表达实施例1中连续四组类梯形折流板位置关系的结构示意图。FIG. 5 is a structural schematic diagram expressing the positional relationship of four consecutive sets of trapezoidal baffles in Example 1. FIG.

图6为类梯形折流板的制作原理图。Figure 6 is a schematic diagram of the fabrication of a quasi-trapezoidal baffle.

图7为表达实施例2中连续四组类梯形折流板位置关系的结构示意图。FIG. 7 is a structural schematic diagram expressing the positional relationship of four consecutive sets of trapezoidal baffles in Example 2. FIG.

图8为实施例3中类梯形倾斜折流板管壳式换热器的内部结构示意图。Fig. 8 is a schematic diagram of the internal structure of the trapezoidal inclined baffle shell-and-tube heat exchanger in Embodiment 3.

图9为实施例1中壳程流体流过一组所述类梯形折流板动时的流动状态示意图。FIG. 9 is a schematic diagram of the flow state of the shell-side fluid in Embodiment 1 when it flows through a set of trapezoidal baffles.

图中:1.换热管;2.类梯形折流板;3.一类弓形板;4.二类弓形板;5.孔。In the figure: 1. heat exchange tubes; 2. similar trapezoidal baffles; 3. first-class bow-shaped plates; 4. second-class bow-shaped plates; 5. holes.

具体实施方式detailed description

下面通过具体实施方式,对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below through specific implementation methods.

实施例1Example 1

本实施例提供一种类梯形倾斜折流板管壳式换热器,包括壳体、换热管1、管板、拉杆和类梯形折流板2,如图1~5所示,相邻的两组类梯形折流板2正交布置,相间的两组类梯形折流板2平行布置,每组包括两个平行的类梯形折流板2,所述类梯形折流板2对应所述换热管1均布若干孔5,所述换热管1穿过所述孔5设置,所述类梯形折流板2倾斜设置,所述类梯形折流板2与所述换热管1夹角=45°,壳程流体流过一组所述类梯形折流板2时的流动状态示意图,如图9所示,壳程流体在一组所述类梯形折流板2以一个方向流动后,在流过下一组所述类梯形倾斜折流板2又以另一方向流动,这种连续周期性的改变流体流动方向,增强壳程流体参混程度,对壳程流体扰动效果明显,增加壳程流体的平均流速和湍动程度,提高了换热效率。This embodiment provides a shell-and-tube heat exchanger with trapezoidal inclined baffles, including a shell, heat exchange tubes 1, tube sheets, tie rods and trapezoidal baffles 2, as shown in Figures 1 to 5, adjacent Two sets of trapezoidal baffles 2 are arranged orthogonally, and the alternate two sets of trapezoidal baffles 2 are arranged in parallel, each group includes two parallel trapezoidal baffles 2, and the trapezoidal baffles 2 correspond to the The heat exchange tubes 1 are evenly distributed with several holes 5, the heat exchange tubes 1 are arranged through the holes 5, the trapezoidal baffles 2 are arranged obliquely, the trapezoidal baffles 2 and the heat exchange tubes 1 Angle =45°, the schematic diagram of the flow state when the shell-side fluid flows through a set of trapezoidal baffles 2, as shown in Figure 9, the shell-side fluid flows in one direction after a set of trapezoidal baffles 2 , after flowing through the next set of trapezoidal inclined baffles 2, it flows in another direction. This continuous and periodic change of the fluid flow direction enhances the mixing degree of the shell-side fluid, and has an obvious effect on the disturbance of the shell-side fluid. Increase the average flow velocity and turbulence degree of the shell-side fluid, and improve the heat transfer efficiency.

所述类梯形折流板2通过拉杆固定,各类梯形折流板2之间通过定距管定距,所述类梯形折流板2边缘对应所述拉杆均布有定管孔,所述拉杆穿过所述定管孔和所述壳体卡接,所述拉杆外套有定距管,所述定距管通过螺栓固定在所述拉杆上,可以对换热管1在横向和纵向位置上进行支撑和定位,避免由于振动对换热器造成的损伤。The trapezoidal baffles 2 are fixed by pull rods, and the distance between various trapezoidal baffles 2 is fixed by a distance tube. The pull rod passes through the fixed tube hole and snaps into the shell, and the pull rod is covered with a distance tube, and the distance tube is fixed on the pull rod by bolts, so that the heat exchange tube 1 can be adjusted in the horizontal and vertical positions. Support and position on the ground to avoid damage to the heat exchanger due to vibration.

每组内所述类梯形折流板1间距为,如图6所示,所述类梯形折流板2是由椭圆板从长轴两端分别切去高为的二类弓形板4和高为的一类弓形板3制得的,其中R为所述壳体的半径,所述椭圆的长轴为,短轴为2R的;保证壳层流体在所述类梯形折流板2引导下进行周期流动无漏流,所述类梯形折流板2斜向流动相比于弓形折流板的横向流动减小了流动阻力,壳程压降大幅降低,而且在加工制造方面克服了连续螺旋折流板换热器不易加工的缺点。The distance between the trapezoidal baffles 1 in each group is , as shown in Figure 6, the trapezoidal baffle 2 is cut from the two ends of the long axis by an elliptical plate with a height of The second type of arcuate plate 4 and the height is made of a class of arcuate plates 3, where R is the radius of the shell, and the major axis of the ellipse is , the minor axis is 2R; ensure that the shell fluid flows periodically under the guidance of the trapezoidal baffle 2 without leakage, and the oblique flow of the trapezoidal baffle 2 is compared with the transverse flow of the bow baffle The flow resistance is reduced, the shell side pressure drop is greatly reduced, and the disadvantage of continuous spiral baffle heat exchangers being difficult to process is overcome in terms of processing and manufacturing.

实施例2Example 2

如图7所示,本实施例与实施例1的不同之处在于:相间的两组类梯形折流板2对称布置;As shown in Figure 7, the difference between this embodiment and Embodiment 1 is that two sets of alternate trapezoidal baffles 2 are arranged symmetrically;

实施例3Example 3

如图8所示,本实施例与上述实施例不同之处在于:每组包括三个类梯形折流板2,每组内所述类梯形折流板2间距为,每组中间的类梯形折流板2是由椭圆板从长轴两端分别切去高为的弓形板制得的;每组中间的类梯形折流板2是由椭圆板从长轴两端分别切去高为和高为的弓形板制得的,其中R为所述壳体的半径,所述椭圆的长轴为,短轴为2R的。As shown in Figure 8, the difference between this embodiment and the above-mentioned embodiment is that each group includes three trapezoidal baffles 2, and the distance between the trapezoidal baffles 2 in each group is , the quasi-trapezoidal baffles 2 in the middle of each group are cut from the two ends of the long axis by elliptical plates, and the height is The bow-shaped plate is made; the quasi-trapezoidal baffle plate 2 in the middle of each group is cut from the two ends of the long axis of the elliptical plate with a height of He Gaowei made of a segmented plate, where R is the radius of the shell and the major axis of the ellipse is , the minor axis is 2R.

在其他的实施例中,与上述实施例的不同之处在于:所述类梯形折流板2与所述换热管1的夹角可根据需求设置。In other embodiments, the difference from the above embodiments lies in: the included angle between the trapezoidal baffle plate 2 and the heat exchange tube 1 Can be set according to needs.

最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对其限制;尽管参照较佳实施例对本发明进行了详细的说明,所属领域的普通技术人员应当理解:依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换;而不脱离本发明技术方案的精神,其均应涵盖在本发明请求保护的技术方案范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be The specific implementation mode of the invention is modified or some technical features are equivalently replaced; without departing from the spirit of the technical solution of the present invention, all of them shall be included in the scope of the technical solution claimed in the present invention.

Claims (8)

1.一种类梯形倾斜折流板管壳式换热器,其特征在于:它包括壳体、换热管、管板、拉杆和多组类梯形折流板,相邻的两组所述类梯形折流板正交布置,每组包括至少两个平行的类梯形折流板,所述类梯形折流板对应所述换热管均布若干孔,所述换热管穿过所述孔设置,所述类梯形折流板倾斜设置;所述类梯形折流板通过拉杆固定,各类梯形折流板之间通过定距管定距。1. A shell-and-tube heat exchanger with trapezoidal inclined baffles, characterized in that: it includes a shell, heat exchange tubes, tube sheets, tie rods and multiple groups of trapezoidal baffles, and the adjacent two groups of the same type The trapezoidal baffles are arranged orthogonally, each group includes at least two parallel trapezoidal baffles, and the trapezoidal baffles are uniformly distributed with a number of holes corresponding to the heat exchange tubes, and the heat exchange tubes pass through the holes The trapezoidal-like baffles are arranged obliquely; the trapezoidal-like baffles are fixed by pull rods, and the distances between various trapezoidal baffles are fixed by distance tubes. 2.根据权利要求1所述的类梯形倾斜折流板管壳式换热器,其特征在于:所述类梯形折流板与所述换热管夹角为,20°≤≤70°。2. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 1, wherein the included angle between the trapezoidal baffles and the heat exchange tubes is , 20°≤ ≤70°. 3.根据权利要求2所述的类梯形倾斜折流板管壳式换热器,其特征在于:每组包括两个类梯形折流板,所述类梯形折流板是由椭圆板从长轴两端分别切去高为和高为的弓形板制得的;其中R为所述壳体的半径,所述椭圆板的长轴为,短轴为2R。3. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 2, characterized in that: each group includes two trapezoidal baffles, and the trapezoidal baffles are composed of elliptical plates from the length The heights of the two ends of the shaft are respectively cut off as He Gaowei made of arcuate plates; where R is the radius of the shell, and the major axis of the elliptical plate is , the minor axis is 2R. 4.根据权利要求3所述的类梯形倾斜折流板管壳式换热器,其特征在于:每组内所述类梯形折流板间距为4. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 3, wherein the distance between the trapezoidal baffles in each group is . 5.根据权利要求2所述的类梯形倾斜折流板管壳式换热器,其特征在于:每组包括三个类梯形折流板,每组中间的类梯形折流板是由从长轴两端的顶点分别切去高为的弓形板制得的;每组中间的类梯形折流板是由椭圆板从长轴两端的顶点分别切去高为和高为的弓形板制得的;其中R为所述壳体的半径,所述椭圆板的长轴为,短轴为2R。5. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 2, wherein each group includes three trapezoidal baffles, and the trapezoidal baffles in the middle of each group are formed from the length The heights of the vertices at both ends of the axis are respectively cut off as The bow-shaped plates are made; the trapezoidal baffles in the middle of each group are cut from the vertices of the two ends of the long axis of the elliptical plate with a height of He Gaowei made of arcuate plates; where R is the radius of the shell, and the major axis of the elliptical plate is , the minor axis is 2R. 6.根据权利要求5所述的类梯形倾斜折流板管壳式换热器,其特征在于:每组内所述类梯形折流板间距为6. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 5, wherein the distance between the trapezoidal baffles in each group is . 7.根据权利要求2~6任一项所述的类梯形倾斜折流板管壳式换热器,其特征在于:相间两组所述类梯形折流板平行或对称布置。7. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to any one of claims 2 to 6, characterized in that two sets of trapezoidal baffles are arranged in parallel or symmetrically. 8.根据权利要求7所述的类梯形倾斜折流板管壳式换热器,其特征在于:所述换热管穿过所述孔且与所述类梯形折流板的夹角为45°。8. The shell-and-tube heat exchanger with trapezoidal inclined baffles according to claim 7, wherein the heat exchange tube passes through the hole and forms an angle with the trapezoidal baffles is 45°.
CN201611043880.6A 2016-11-24 2016-11-24 The trapezoidal inclined baffle shell-and-tube heat exchanger of class Active CN106440882B (en)

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