WO2015055122A1 - 一种板管式换热器 - Google Patents

一种板管式换热器 Download PDF

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Publication number
WO2015055122A1
WO2015055122A1 PCT/CN2014/088657 CN2014088657W WO2015055122A1 WO 2015055122 A1 WO2015055122 A1 WO 2015055122A1 CN 2014088657 W CN2014088657 W CN 2014088657W WO 2015055122 A1 WO2015055122 A1 WO 2015055122A1
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WIPO (PCT)
Prior art keywords
plate
pipe
heat exchanger
end plate
pieces
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Application number
PCT/CN2014/088657
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English (en)
French (fr)
Inventor
何立勇
陈雨春
余科峰
何宇扬
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浙江鸿远制冷设备有限公司
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Publication of WO2015055122A1 publication Critical patent/WO2015055122A1/zh

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Classifications

    • 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
    • F28D9/0031—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 paired plates touching each other
    • F28D9/0043—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media

Definitions

  • the invention relates to a heat exchanger, in particular to a plate and tube heat exchanger.
  • a conventional brazed plate heat exchanger is a heat exchanger in which a series of corrugated metal sheets are stacked and brazed. A plurality of flow passages having small flow cross sections are formed between the plates constituting the heat exchanger, and heat exchange is performed through the sheets, which is compared with the conventional shell-and-tube heat exchanger under the same flow resistance and pump power consumption. The heat transfer coefficient is much higher.
  • the traditional plate heat exchanger due to the small space between the two plates, the fluid resistance is large, and it is easy to block. Once the blockage occurs, local or all failures are likely to occur, affecting efficiency and even causing leakage.
  • the traditional heat exchange area and the number of plates of the conventional brazed plate heat exchanger are limited, and cannot meet the requirements of a larger heat exchange amount, and the expandability is insufficient.
  • the present invention is directed to the deficiencies in the prior art, and provides a plate and tube heat exchanger, wherein the heat exchanger has less resistance between the plates, is not easy to block, and the plate is more convenient to expand.
  • a plate and tube heat exchanger comprising an end plate, a bottom plate, a core passage and a connecting pipe, the connecting pipe comprising an inlet pipe A, an outlet pipe A, an inlet pipe B and a bottom plate mounted on the end plate Outlet tube B, the end plate and the bottom plate are welded at both ends of the core channel, the core channel is alternately stacked and brazed by a plurality of plates A and B, the plate A and the plate B A medium through hole is defined in a position corresponding to the inlet pipe A and the outlet pipe A.
  • the plate piece A is further provided with a plurality of bosses
  • the plate plate B is further provided with a concave platform at a position corresponding to the boss.
  • the top of the boss and the bottom of the recess are punched with a through hole; the end plate, the plate A, the plate B and the bottom of the bottom plate are provided with a sealing bevel.
  • the first corner hole area, the inter-plate flow path, the second corner hole area and the pipe area are formed between the adjacent plate A and the plate B, and the end plate and the plate B form a distribution area, the bottom plate and the plate Sheet B forms a collection area.
  • the plate and tube heat exchanger In the manner of stacking the plates, a fluid passage similar to the shell-and-tube heat exchanger is formed. Therefore, compared with the conventional plate heat exchanger, the resistance between the plates is smaller, it is not easy to block, and the plate can be in the thickness direction. With unlimited extension, it can be applied to applications with larger heat transfer requirements.
  • the heat exchanger replaces the tube passage by a channel formed by stacking a plurality of medium through holes on the sheet, so that the heat exchange efficiency is higher than that of the conventional shell and tube heat exchanger. And it takes up less space and saves costs.
  • Figure 1 is a schematic view of the overall structure of the present invention.
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1;
  • a plate and tube heat exchanger as shown in FIG. 1 and FIG. 2, comprising an end plate 100, a bottom plate 500, and a core passage 400 And a connecting pipe comprising an inlet pipe A101, an outlet pipe A103, an inlet pipe B102, and an outlet pipe B501 mounted on the bottom plate 500, which are mounted on the end plate 100, the end plate 100 and a bottom plate 500 are welded to both ends of the core passage 400, and the core passage 400 is alternately stacked and brazed by a plurality of plates A200 and B300, the plates being formed A through hole 700 is formed in the A200 and the plate B300 corresponding to the inlet pipe A101 and the outlet pipe A103, and the plate A200 is further provided with a plurality of bosses 203
  • the plate B300 is further provided with a recess 303 at a position corresponding to the boss 203.
  • a sealing bevel 900 is disposed around the end plate 100, the plate A200, the plate B300, and the bottom plate 500.
  • the adjacent plate A200 and the plate B300 A first corner hole region 601, an interplate flow channel 602, a second corner hole region 603, and a pipe region 605 are formed, and the end plate 100 and the plate B300 form a distribution region 604, and the bottom plate 500 and plate B300 form a collection area 606.
  • the medium 1 passes through the inlet tube A101 of the end plate 100 through the plate B300 and the plate A200.
  • the medium through hole 700 enters the first corner hole area 601, then enters the interplate flow path 602, and finally collects in the second corner hole area 603, and flows out from the outlet tube A103 of the end plate 100.
  • Medium 2 From the inlet pipe B102 at the end plate 100 through the distribution area 604, the access pipe 605 is accessed through the through hole 800 at the plate B300 and the plate A200. Finally, it is collected in the collection area 606 and flows out through the outlet pipe B501 located on the bottom plate 500.
  • the plate-and-tube heat exchanger utilizes the structure of a conventional plate heat exchanger, and the entire heat exchanger passes through adjacent plates A200 and plates B300.
  • the surrounding sealing bevel 900 and the bottom surface of the recessed plate provided in the plates A200 and B300 form a seal together with the top surface of the boss.
  • the two media flow in a cross-flow manner, and the heat exchange between the media 1 and the media 2 is achieved by heat transfer from the adjacent plate B300 plate A200.
  • the above embodiments are merely representative examples of the invention. It is apparent that the present invention is not limited to the above embodiments, and many variations are possible.
  • the present invention encompasses not only the single flow described in the embodiments, but also all the ways in which the novel sheets according to the present invention constitute a conduit passage, such as a multi-flow, multi-media passage, and the like.

Abstract

提供了一种板管式换热器，其包括端板(100)、底板(500)、板芯通道(400)和连接管。连接管包括安装在端板(100)上的进管A(101)、出管A(103)、进管B(102)和安装在底板(500)上的出管B(501)。端板(100)和底板(500)焊接在板芯通道(400)的两端。板芯通道(400)由若干板片A(200)和板片B(300)交替堆叠、钎焊而成。板片A(200)和板片B(300)上与进管A(101)和出管A(103)相对应的位置开设有介质通孔(700)。板片A(200)上还设有若干凸台(203)，板片B(300)上在与凸台(203)相对应的位置还设有凹台(303)，在凸台(203)的顶部和凹台(303)的底部的相同位置均冲切有通孔(800)。端板(100)、板片A(200)、板片B(300)和底板(500)的四周均设置有密封斜面(900)。板管式换热器具有换热效率高、占用空间小、成本低的优点。

Description

一种板管式换热器 技术领域
本发明涉及一种换热器，尤其涉及一种板管式换热器。
背景技术
传统的钎焊板式换热器是由一系列具有波纹形状的金属板片叠装、钎焊而成的一种换热器。组成换热器的各板片之间形成许多小流通断面的流道，通过板片进行热量交换，它与常规的壳管式换热器相比，在相同的流动阻力和泵功率消耗情况下，其传热系数要高出很多。但对于传统的板式换热器而言，由于两板之间空间小，流体阻力大，容易堵塞，一旦堵塞就容易发生局部或全部失效，影响效率甚至引起泄漏。另外，传统的钎焊板式换热器的单片换热面积和板片数量是有限的，不能满足更大换热量的要求，可拓展性不够。
 技术解决方案
本发明针对现有技术中的不足，提供了一种板管式换热器，该换热器的板片间的阻力更小，不易堵塞，且板片更加方便扩展。
为了解决上述技术问题，本发明采用以下技术方案：
一种板管式换热器，包括端板、底板、板芯通道和连接管，所述连接管包括安装在端板上的进管A、出管A、进管B和安装在底板上的出管B，所述端板和底板焊接在板芯通道的两端，所述板芯通道由若干板片A和板片B交替堆叠、钎焊而成，所述板片A和板片B上与进管A和出管A相对应的位置开设有介质通孔，所述板片A上还设有若干凸台，所述板片B上与凸台相对应的位置还设有凹台，所述凸台的顶部和凹台的底部的相同位置均冲切有通孔；所述端板、板片A、板片B和底板的四周均设置有密封斜面。
作为优选：所述相邻板片A和板片B之间形成第一角孔区域、板间流道、第二角孔区域和管道区域，端板与板片B形成分配区域，底板与板片B形成收集区域。
 有益效果
本发明采用以上技术方案，一方面，该板管式换热器 以板片堆叠的方式，形成类似管壳式换热器的流体通道，因此，相较于传统板式换热器而言，板片间的阻力更小，不易堵塞，板片还能在厚度方向上无限延伸，即可适用于更大的换热量需求的应用领域。另外一方面，该换热器以板片上若干介质通孔堆叠钎焊形成的通道替代列管通道，因此，相较于传统壳管式换热器而言，拥有了更高的换热效率，并且所占用的体积更小，节约成本。
 附图说明
图1为本发明的整体结构示意图。
图2为图1的A-A剖视图。
 本发明的实施方式
下面结合附图，对本发明一种板管式换热器的优选实施方式作出详细的描述：
如图 1 、图 2 所示的一种板管式换热器，包括端板 100 、底板 500 、板芯通道 400 和连接管，所述连接管包括安装在端板 100 上的进管 A101 、出管 A103 、进管 B102 和安装在底板 500 上的出管 B501 ，所述端板 100 和底板 500 焊接在板芯通道 400 的两端，所述板芯通道 400 由若干板片 A200 和板片 B300 交替堆叠、 钎焊 而成，所述板片 A200 和板片 B300 上与进管 A101 和出管 A103 相对应的位置开设有介质通孔 700 ，所述板片 A200 上还设有若干凸台 203 ，所述板片 B300 上与凸台 203 相对应的位置还设有凹台 303 ，所述凸台 203 的顶部和凹台 303 的底部的相同位置均冲切有通孔 800 ；所述端板 100 、板片 A200 、板片 B300 和底板 500 的四周均设置有密封斜面 900 。所述相邻板片 A200 和板片 B300 之间形成第一角孔区域 601 、板间流道 602 、第二角孔区域 603 和管道区域 605 ，端板 100 与板片 B300 形成分配区域 604 ，底板 500 与板片 B300 形成收集区域 606 。
工作时，介质 1 经位于端板 100 的进管 A101 通过板片 B300 和板片 A200 的介质通孔 700 进入第一角孔区域 601 ，然后进入板间流道 602 ，最后汇集于第二角孔区域 603 ，从端板 100 的出管 A103 流出。介质 2 从位于端板 100 的进管 B102 通过分配区域 604 进入由位于板片 B300 和板片 A200 的通孔 800 进入管道区域 605 ，最后汇集于收集区域 606 ，经位于底板 500 上的出管 B501 流出。
此板管式换热器利用传统板式热交换器的结构方式，整台换热器通过相邻板片 A200 和板片 B300 四周的密封斜面 900 以及板片 A200 和板片 B300 中设置的凹台底面与凸台顶面共同形成密封。介质 1 通过板间流道 602 流通，介质 2 通过位于相邻板片 A200 和板片 B300 的凸台 203 与凹台 303 的接触面上的通孔 800 所构成的管道区域 605 流通，两种介质以交叉流的方式流动，介质 1 和介质 2 的热交换是通过由相邻的板片 B300 板片 A200 来实现热传递。
最后，应当指出，以上实施例仅是本发明较有代表性的例子。显然，本发明包含不仅限于上述实施例，还可以有许多变形。例如，本发明包含不仅限于实施例所述的单流程，还包含一切基于本发明所述新型板片构成管道通路的所有方式，如多流程、多介质通道等。

Claims (1)

  1. 1. 一种板管式换热器，包括端板（ 100 ）、底板（ 500 ）、板芯通道（ 400 ）和连接管，所述连接管包括安装在端板（ 100 ）上的进管 A （ 101 ）、出管 A （ 103 ）、进管 B （ 102 ）和安装在底板（ 500 ）上的出管 B （ 501 ），所述端板（ 100 ）和底板（ 500 ）焊接在板芯通道（ 400 ）的两端，所述板芯通道（ 400 ）由若干板片 A （ 200 ）和板片 B （ 300 ）交替堆叠、 钎焊 而成，其特征在于：所述板片 A （ 200) 和板片 B （ 300 ）上与进管 A （ 101 ）和出管 A （ 103 ）相对应的位置开设有介质通孔（ 700 ），所述板片 A （ 200) 上还设有若干凸台（ 203 ），所述板片 B （ 300 ）上与凸台（ 203 ）相对应的位置还设有凹台（ 303 ），所述凸台（ 203 ）的顶部和凹台（ 303 ）的底部的相同位置均冲切有通孔（ 800 ）；所述端板（ 100 ）、板片 A （ 200 ）、板片 B （ 300 ）和底板（ 500 ）的四周均设置有密封斜面（ 900 ）。
    2. 根据权利要求 1 所述的一种板管式换热器，其特征在于：所述相邻板片 A （ 200 ）和板片 B （ 300 ）之间形成第一角孔区域（ 601 ）、板间流道（ 602 ）、第二角孔区域（ 603 ）和管道区域（ 605 ），端板（ 100 ）与板片 B （ 300 ）形成分配区域（ 604 ），底板（ 500 ）与板片 B （ 300 ）形成收集区域（ 606 ）。
PCT/CN2014/088657 2013-10-17 2014-10-15 一种板管式换热器 WO2015055122A1 (zh)

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CN107218830A (zh) * 2016-12-14 2017-09-29 刘启春 某垫板上有密封阻挡结构的盒形层叠换热器
CN110469869A (zh) * 2019-09-11 2019-11-19 南京同诚节能环保装备研究院有限公司 一种燃气锅炉板式空气预热器

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CN103512400B (zh) * 2013-10-17 2015-04-15 浙江鸿远制冷设备有限公司 一种板管式换热器
CN110030847A (zh) * 2019-05-17 2019-07-19 广东工业大学 一种管板式多介质换热器

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CN103512400A (zh) * 2013-10-17 2014-01-15 浙江鸿远制冷设备有限公司 一种板管式换热器
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Publication number Priority date Publication date Assignee Title
CN107218830A (zh) * 2016-12-14 2017-09-29 刘启春 某垫板上有密封阻挡结构的盒形层叠换热器
CN110469869A (zh) * 2019-09-11 2019-11-19 南京同诚节能环保装备研究院有限公司 一种燃气锅炉板式空气预热器

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