WO2023179313A1 - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

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Publication number
WO2023179313A1
WO2023179313A1 PCT/CN2023/078407 CN2023078407W WO2023179313A1 WO 2023179313 A1 WO2023179313 A1 WO 2023179313A1 CN 2023078407 W CN2023078407 W CN 2023078407W WO 2023179313 A1 WO2023179313 A1 WO 2023179313A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
heat
heat transfer
spaces
transfer medium
Prior art date
Application number
PCT/CN2023/078407
Other languages
French (fr)
Chinese (zh)
Inventor
图龙·格里高利
张志锋
罗俊
Original Assignee
丹佛斯有限公司
张志锋
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202220680222.2U external-priority patent/CN217764597U/en
Priority claimed from CN202210308874.8A external-priority patent/CN116839395A/en
Application filed by 丹佛斯有限公司, 张志锋 filed Critical 丹佛斯有限公司
Publication of WO2023179313A1 publication Critical patent/WO2023179313A1/en

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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
    • F28D9/04—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 being formed by spirally-wound plates or laminae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning

Definitions

  • Embodiments of the invention relate to a plate heat exchanger.
  • a conventional plate heat exchanger 100' includes: a plurality of heat transfer plates 10; and a heat exchange space formed between adjacent heat transfer plates 10 in the plurality of heat transfer plates 10,
  • the heat exchange space includes a plurality of first heat exchange spaces 20A for the first heat transfer medium, a plurality of second heat exchange spaces 20B for the second heat transfer medium, and a plurality of third heat transfer medium.
  • the third heat exchange space 20C, each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is connected to the plurality of third heat exchange spaces 20C in the overlapping direction of the heat transfer plate 10 One or two of them are adjacent.
  • the ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B is 1.
  • a plate heat exchanger including: a plurality of heat transfer plates; and a heat exchange space formed between adjacent heat transfer plates among the plurality of heat transfer plates, said The heat exchange space includes a plurality of first heat exchange spaces for the first heat transfer medium, a plurality of second heat exchange spaces for the second heat transfer medium, and a plurality of third heat exchange spaces for the third heat transfer medium. space, each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is adjacent to one or two of the plurality of third heat exchange spaces in the overlapping direction of the heat transfer plates, wherein Place The number of the plurality of first heat exchange spaces is different from the number of the plurality of second heat exchange spaces.
  • the ratio of the number of heat exchange spaces with a larger number to the number of heat exchange spaces with a smaller number among the number of the plurality of first heat exchange spaces and the number of the plurality of second heat exchange spaces is greater than 1.05.
  • the ratio of the number of heat exchange spaces with a larger number to the number of heat exchange spaces with a smaller number among the number of the plurality of first heat exchange spaces and the number of the plurality of second heat exchange spaces is between 1.1 and 5.
  • At least two first heat exchange space groups among the plurality of first heat exchange space groups include the same number of first heat exchange spaces or different numbers of first heat exchange spaces; and/or At least two second heat exchange space groups among the plurality of second heat exchange space groups include the same number of second heat exchange spaces or different numbers of second heat exchange spaces.
  • the plurality of first heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates; and/or for the first heat exchange space In terms of the heat exchange space and the second heat exchange space, the plurality of second heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates.
  • the plurality of heat exchange spaces composed of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces and the plurality of third heat exchange spaces are arranged in the overlapping direction of the heat transfer plates. arranged alternately.
  • the plate heat exchanger further includes: respectively used for the first heat transfer medium to flow into the plurality of first heat exchange spaces and for the first heat transfer medium to flow out of the plurality of first heat exchange spaces.
  • a pair of first heat transfer medium ports in the hot space one port for the second heat transfer medium to flow into the plurality of second heat exchange spaces and one for the second heat transfer medium to flow out of the plurality of second heat exchange spaces.
  • Heat transfer medium port is one port for the second heat transfer medium to flow into the plurality of second heat exchange spaces and one for the second heat transfer medium to flow out of the plurality of second heat exchange spaces.
  • one of the pair of first heat transfer medium ports is provided with is located at the upper left corner of the heat transfer plate, the other of the pair of first heat transfer medium ports is located at the lower left corner of the heat transfer plate, and one of the pair of second heat transfer medium ports is located at the lower left corner of the heat transfer plate.
  • the other of the pair of second heat transfer medium ports is arranged in the lower right corner of the heat transfer plate; or one of the pair of first heat transfer medium ports is arranged in the upper left corner of the heat transfer plate.
  • the other of the pair of first heat transfer medium ports is arranged at the lower right corner of the heat transfer plate, and the other of the pair of second heat transfer medium ports is arranged at the upper right corner of the heat transfer plate, and the one Another one of the second heat transfer medium ports is provided in the lower left corner of the heat transfer plate.
  • each of the pair of first heat transfer medium ports has a plurality of first openings leading to the plurality of first heat exchange spaces; the pair of second heat transfer medium ports Each of the pair of third heat transfer medium ports has a plurality of second openings leading to the plurality of second heat exchange spaces; and each of the pair of third heat transfer medium ports has a plurality of second openings leading to the plurality of third heat exchange spaces. of multiple third openings.
  • each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is connected to the third heat exchange space on both sides in the overlapping direction of the heat transfer plates. Adjacent; and/or each of the plurality of third heat exchange spaces is adjacent to the first heat exchange space or the second heat exchange space on both sides in the overlapping direction of the heat transfer plates.
  • the first heat transfer medium and the second heat transfer medium are refrigerants
  • the third heat transfer medium is a brine
  • the first heat exchange space, the second heat exchange space and the third heat exchange space are independent of each other.
  • Using the plate heat exchanger according to the embodiment of the present invention can optimize the heat transfer area for each circuit to improve the heat exchange efficiency.
  • Figure 1 is a schematic outline view of a plate heat exchanger according to an embodiment of the present invention.
  • Figure 2 is a schematic diagram of the flow channel of a traditional plate heat exchanger
  • FIG 3 is a partial schematic diagram of the plate heat exchanger shown in Figure 2, which shows the first heat transfer medium port, the second heat transfer medium port and the third heat transfer medium port;
  • FIG. 4 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention.
  • the figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 3;
  • Figure 5 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention.
  • the figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the first heat exchange space has The ratio of the number to the number of the second heat exchange space is 2;
  • Figure 6 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention.
  • the figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the first heat transfer space has The ratio of the number to the number of the second heat exchange space is 1.5;
  • Figure 7 is a partial schematic diagram of a plate heat exchanger according to a modification of the embodiment shown in Figure 6.
  • the figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in another example manner;
  • Fig. 8 is a partial schematic diagram of a plate heat exchanger according to another modification of the embodiment shown in Fig. 6, showing a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in yet another example manner;
  • Figure 9 is a partial schematic diagram of a plate heat exchanger according to yet another modification of the embodiment shown in Figure 6, showing a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port.
  • the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in yet another example manner.
  • a plate heat exchanger 100 includes: a plurality of heat transfer plates 10; and adjacent heat transfer plates 10 formed in the plurality of heat transfer plates 10
  • the heat exchange space includes a plurality of first heat exchange spaces 20A for the first heat transfer medium, a plurality of second heat exchange spaces 20B for the second heat transfer medium, and a plurality of second heat exchange spaces 20B for the second heat transfer medium.
  • Each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is connected with a plurality of heat transfer plates 10 in the overlapping direction.
  • One or two of the third heat exchange spaces 20C are adjacent, for example, with a plurality of third heat exchange spaces. Two of the hot spaces 20C are adjacent.
  • the number of the plurality of first heat exchange spaces 20A is greater than the number of the plurality of second heat exchange spaces 20B.
  • the ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B is greater than 1, for example, greater than 1.05, 1.1, 1.15, etc.
  • the ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B may be between 1.1 and 5.
  • the plate heat exchanger 100 shown in the figure is a double-circuit heat exchanger.
  • the first heat exchange space 20A, the second heat exchange space 20B and the third heat exchange space 20C are independent of each other.
  • Each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is adjacent to one third heat exchange space 20C on both sides in the overlapping direction of the heat transfer plates.
  • the plurality of third heat exchange spaces 20C are adjacent to the first heat exchange space 20A or the second heat exchange space 20B on both sides in the overlapping direction of the heat transfer plates.
  • the first heat transfer medium in the first heat exchange space 20A exchanges heat with the third heat exchange medium in the third heat exchange space 20C
  • the second heat transfer medium in the second heat exchange space 20B exchanges heat with the third heat transfer medium in the third heat exchange space 20C. Heat exchange medium heat exchange.
  • a plurality of first heat exchange space groups and a plurality of second heat exchange space groups are alternately arranged in the overlapping direction of the heat transfer plates 10 .
  • the third heat transfer medium in the third heat exchange space adjacent to the other circuit can be prevented from freezing.
  • Each of the plurality of first heat exchange space groups includes one or more first heat exchange spaces 20A
  • each of the plurality of second heat exchange space groups includes one or more second heat exchange spaces. 20B.
  • At least two first heat exchange space groups among the plurality of first heat exchange space groups may include the same number of first heat exchange spaces 20A or different numbers of first heat exchange spaces 20A; and/or the plurality of first heat exchange space groups may include the same number of first heat exchange spaces 20A or different numbers of first heat exchange spaces 20A.
  • At least two of the second heat exchange space groups may include the same number of second heat exchange spaces 20B or different numbers of second heat exchange spaces 20B.
  • the plurality of first heat exchange spaces 20A are continuously arranged in the overlapping direction of the heat transfer plates 10; and/or for the first heat exchange space 20A and the second heat exchange space 20B (that is, without considering the third heat exchange space) In the case of space 20C), the plurality of second heat exchange spaces 20B are continuously arranged in the overlapping direction of the heat transfer plates 10 .
  • a plurality of heat exchange spaces composed of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B are combined with the plurality of third heat exchange spaces.
  • the heat spaces 20C are alternately arranged in the overlapping direction of the heat transfer plates 10 .
  • the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B is defined as ⁇ , then there is An arrangement of the first heat exchange space 20A and the second heat exchange space 20B.
  • the plate heat exchanger 100 further includes: respectively used for the first heat transfer medium to flow into the plurality of first heat exchange spaces 20A and for the first heat transfer space 20A.
  • the heat medium flows out of a pair of first heat transfer medium ports 30A of the plurality of first heat exchange spaces 20A; respectively for the second heat transfer medium to flow into the plurality of second heat exchange spaces 20B and for the second heat transfer A pair of second heat transfer medium ports 30B where the medium flows out of the plurality of second heat exchange spaces 20B; and a pair of second heat transfer medium ports 30B for the third heat transfer medium to flow into the plurality of third heat exchange spaces 20C and for the third heat transfer space respectively.
  • the medium flows out of a pair of third heat transfer medium ports 30C of the plurality of third heat exchange spaces 20C.
  • the first heat transfer medium port 30A and the second heat transfer medium port 30B located on the lower side of the plate heat exchanger 100 are heat transfer medium inflow ports, while the first heat transfer medium port 30B located on the upper side of the plate heat exchanger 100
  • the first heat transfer medium port 30A and the second heat transfer medium port 30B on the side are the heat transfer medium outflow ports
  • the third heat transfer medium port 30C located on the lower side of the plate heat exchanger 100 is the heat transfer medium outflow port
  • the third heat transfer medium port 30C located on the lower side of the plate heat exchanger 100 is a heat transfer medium outflow port.
  • the third heat transfer medium port 30C on the upper side of the plate heat exchanger 100 is a heat transfer medium inflow port.
  • the first heat transfer medium and the second heat transfer medium may be the same or different.
  • the first heat transfer medium and the second heat transfer medium may be refrigerant, and the third heat transfer medium may be a brine, such as water or ethanol. Glycol solution or ethanol solution, etc.
  • one of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10, and the other of the pair of first heat transfer medium ports 30A is provided at the lower left corner of the heat transfer plate 10, and the pair of second transfer One of the heat transfer medium ports 30B is disposed at the upper right corner of the heat transfer plate 10, and the other of the pair of second heat transfer medium ports 30B is disposed at the lower right corner of the heat transfer plate 10, thus defining a parallel flow heat exchange mode.
  • one of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10
  • the other of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10
  • one of the pair of second heat transfer medium ports 30B is disposed on the upper right corner of the heat transfer plate 10
  • the other of the pair of second heat transfer medium ports 30B is disposed on the upper right corner of the heat transfer plate 10 Lower left corner, thus defining the cross-flow heat transfer mode.
  • the third heat transfer medium port 30C is disposed between the first heat transfer medium port 30A and the second heat transfer medium port 30A. between media ports 30B.
  • each of the pair of first heat transfer medium ports 30A has a plurality of first openings 31A leading to the plurality of first heat exchange spaces 20A;
  • Each of the pair of second heat transfer medium ports 30B has a plurality of second openings 31B leading to the plurality of second heat exchange spaces 20B; and one of the pair of third heat transfer medium ports 30C
  • Each has a plurality of third openings 31C leading to the plurality of third heat exchange spaces 20C.
  • arrows indicate the location of all openings.
  • a blocking ring 5 is provided between adjacent heat transfer plates 10 where there is no opening, and an opening is formed between adjacent heat transfer plates 10 where there is no blocking ring 5; or a distributor is provided in the port.
  • the distributor has an opening leading to the heat exchange space.
  • other suitable ways can also be used to form the openings leading to the heat exchange space.
  • the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B is greater than 1, whereby the heat transfer area for each circuit can be optimized to improve heat exchange efficiency.
  • the system efficiency can be increased by 5% to 10% at full load and part load, while avoiding reliability issues such as retention of the heat transfer medium.
  • adjusting the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B will not affect the feasibility of product manufacturing and will not cause an increase in cost.
  • the present invention is not limited to In the above embodiment, the first heat exchange air
  • the ratio of the number of rooms 20A to the number of second heat exchange spaces 20B may be any other value greater than 1, and the first heat exchange spaces 20A and the second heat exchange spaces 20B may be arranged in any other manner.

Abstract

Disclosed in the present invention is a plate heat exchanger. The plate heat exchanger comprises: a plurality of heat transfer plates; and heat exchange spaces which are formed between adjacent heat transfer plates among the plurality of heat transfer plates, wherein the heat exchange spaces comprise a plurality of first heat exchange spaces for a first heat transfer medium, a plurality of second heat exchange spaces for a second heat transfer medium, and a plurality of third heat exchange spaces for a third heat transfer medium, each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is adjacent to one or two of the plurality of third heat exchange spaces in the overlapping direction of the heat transfer plates, and the number of the plurality of first heat exchange spaces is different from the number of the plurality of second heat exchange spaces. By using the plate heat exchanger according to the embodiments of the present invention, the heat transfer area for each loop can be optimized, so as to improve the heat exchange efficiency.

Description

板式换热器Plate heat exchanger 技术领域Technical field
本发明的实施例涉及一种板式换热器。Embodiments of the invention relate to a plate heat exchanger.
背景技术Background technique
参见图2和图3，传统的板式换热器100′包括：多个传热板10；以及形成在所述多个传热板10中的相邻传热板10之间的换热空间，所述换热空间包括用于第一传热介质的多个第一换热空间20A、用于第二传热介质的多个第二换热空间20B和用于第三传热介质的多个第三换热空间20C，所述多个第一换热空间20A和多个第二换热空间20B中的每一个在传热板10的重叠方向上都与多个第三换热空间20C中的一个或两个相邻。所述多个第一换热空间20A的数量与所述多个第二换热空间20B的数量的比值为1。即，多个第一换热空间20A与多个第二换热空间20B交替排列。在图2中，用虚线示出了第一传热介质的流动，用实线示出了第二传热介质的流动，并且用点划线示出了第三传热介质的流动。对于上述板式换热器，在确定尺寸时，需要牺牲每个回路的性能。增加传热面积将有利于提高效率，特别是对于高容量回路，但另一方面，会导致低容量回路中的传热介质速度降低，这可能会导致部分负载条件下的传热介质的滞留问题。Referring to Figures 2 and 3, a conventional plate heat exchanger 100' includes: a plurality of heat transfer plates 10; and a heat exchange space formed between adjacent heat transfer plates 10 in the plurality of heat transfer plates 10, The heat exchange space includes a plurality of first heat exchange spaces 20A for the first heat transfer medium, a plurality of second heat exchange spaces 20B for the second heat transfer medium, and a plurality of third heat transfer medium. The third heat exchange space 20C, each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is connected to the plurality of third heat exchange spaces 20C in the overlapping direction of the heat transfer plate 10 One or two of them are adjacent. The ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B is 1. That is, the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B are alternately arranged. In FIG. 2 , the flow of the first heat transfer medium is shown by a dotted line, the flow of the second heat transfer medium is shown by a solid line, and the flow of the third heat transfer medium is shown by a dotted line. For the plate heat exchangers described above, performance of each circuit needs to be sacrificed when sizing. Increasing the heat transfer area will be beneficial for improving efficiency, especially for high capacity loops, but on the other hand, will result in a reduction of the heat transfer medium velocity in low capacity loops, which may lead to retention problems of the heat transfer medium under part load conditions. .
发明内容Contents of the invention
本发明的实施例的目的是提供一种板式换热器，由此可以优化用于每个回路的传热面积，以提高换热效率。An object of embodiments of the present invention is to provide a plate heat exchanger whereby the heat transfer area used for each circuit can be optimized to improve heat exchange efficiency.
根据本发明的实施例，提供了一种板式换热器，包括：多个传热板；以及形成在所述多个传热板中的相邻传热板之间的换热空间，所述换热空间包括用于第一传热介质的多个第一换热空间、用于第二传热介质的多个第二换热空间和用于第三传热介质的多个第三换热空间，所述多个第一换热空间和多个第二换热空间中的每一个在传热板的重叠方向上都与多个第三换热空间中的一个或两个相邻，其中所 述多个第一换热空间的数量与所述多个第二换热空间的数量不同。According to an embodiment of the present invention, a plate heat exchanger is provided, including: a plurality of heat transfer plates; and a heat exchange space formed between adjacent heat transfer plates among the plurality of heat transfer plates, said The heat exchange space includes a plurality of first heat exchange spaces for the first heat transfer medium, a plurality of second heat exchange spaces for the second heat transfer medium, and a plurality of third heat exchange spaces for the third heat transfer medium. space, each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is adjacent to one or two of the plurality of third heat exchange spaces in the overlapping direction of the heat transfer plates, wherein Place The number of the plurality of first heat exchange spaces is different from the number of the plurality of second heat exchange spaces.
根据本发明的实施例，所述多个第一换热空间的数量与所述多个第二换热空间的数量中数量大的换热空间的数量与数量少的换热空间的数量的比值大于1.05。According to an embodiment of the present invention, the ratio of the number of heat exchange spaces with a larger number to the number of heat exchange spaces with a smaller number among the number of the plurality of first heat exchange spaces and the number of the plurality of second heat exchange spaces. greater than 1.05.
根据本发明的实施例，所述多个第一换热空间的数量与所述多个第二换热空间的数量中数量大的换热空间的数量与数量少的换热空间的数量的比值介于1.1至5之间。According to an embodiment of the present invention, the ratio of the number of heat exchange spaces with a larger number to the number of heat exchange spaces with a smaller number among the number of the plurality of first heat exchange spaces and the number of the plurality of second heat exchange spaces. Between 1.1 and 5.
根据本发明的实施例，多个第一换热空间组和多个第二换热空间组在传热板的重叠方向上交替排列，所述多个第一换热空间组中的每一个包括一个或多个第一换热空间，所述多个第二换热空间组中的每一个包括一个或多个第二换热空间。According to an embodiment of the present invention, a plurality of first heat exchange space groups and a plurality of second heat exchange space groups are alternately arranged in the overlapping direction of the heat transfer plates, and each of the plurality of first heat exchange space groups includes One or more first heat exchange spaces, each of the plurality of second heat exchange space groups includes one or more second heat exchange spaces.
根据本发明的实施例，所述多个第一换热空间组中的至少两个第一换热空间组包括相同数量的第一换热空间或不同数量的第一换热空间；和/或所述多个第二换热空间组中的至少两个第二换热空间组包括相同数量的第二换热空间或不同数量的第二换热空间。According to an embodiment of the present invention, at least two first heat exchange space groups among the plurality of first heat exchange space groups include the same number of first heat exchange spaces or different numbers of first heat exchange spaces; and/or At least two second heat exchange space groups among the plurality of second heat exchange space groups include the same number of second heat exchange spaces or different numbers of second heat exchange spaces.
根据本发明的实施例，针对第一换热空间和第二换热空间而言，所述多个第一换热空间在传热板的重叠方向上连续排列；和/或针对第一换热空间和第二换热空间而言，所述多个第二换热空间在传热板的重叠方向上连续排列。According to an embodiment of the present invention, for the first heat exchange space and the second heat exchange space, the plurality of first heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates; and/or for the first heat exchange space In terms of the heat exchange space and the second heat exchange space, the plurality of second heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates.
根据本发明的实施例，所述多个第一换热空间和所述多个第二换热空间组成的多个换热空间与所述多个第三换热空间在传热板的重叠方向上交替排列。According to an embodiment of the present invention, the plurality of heat exchange spaces composed of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces and the plurality of third heat exchange spaces are arranged in the overlapping direction of the heat transfer plates. arranged alternately.
根据本发明的实施例，所述板式换热器还包括：分别用于第一传热介质流入所述多个第一换热空间和用于第一传热介质流出所述多个第一换热空间的一对第一传热介质端口；分别用于第二传热介质流入所述多个第二换热空间和用于第二传热介质流出所述多个第二换热空间的一对第二传热介质端口；以及分别用于第三传热介质流入所述多个第三换热空间和用于第三传热介质流出所述多个第三换热空间的一对第三传热介质端口。According to an embodiment of the present invention, the plate heat exchanger further includes: respectively used for the first heat transfer medium to flow into the plurality of first heat exchange spaces and for the first heat transfer medium to flow out of the plurality of first heat exchange spaces. A pair of first heat transfer medium ports in the hot space; one port for the second heat transfer medium to flow into the plurality of second heat exchange spaces and one for the second heat transfer medium to flow out of the plurality of second heat exchange spaces. a pair of second heat transfer medium ports; and a pair of third heat transfer medium ports respectively used for the third heat transfer medium to flow into the plurality of third heat exchange spaces and for the third heat transfer medium to flow out of the plurality of third heat exchange spaces. Heat transfer medium port.
根据本发明的实施例，所述一对第一传热介质端口中的一个设 置在传热板的左上角，所述一对第一传热介质端口中的另一个设置在传热板的左下角，并且所述一对第二传热介质端口中的一个设置在传热板的右上角，所述一对第二传热介质端口中的另一个设置在传热板的右下角；或者所述一对第一传热介质端口中的一个设置在传热板的左上角，所述一对第一传热介质端口中的另一个设置在传热板的右下角，并且所述一对第二传热介质端口中的一个设置在传热板的右上角，所述一对第二传热介质端口中的另一个设置在传热板的左下角。According to an embodiment of the present invention, one of the pair of first heat transfer medium ports is provided with is located at the upper left corner of the heat transfer plate, the other of the pair of first heat transfer medium ports is located at the lower left corner of the heat transfer plate, and one of the pair of second heat transfer medium ports is located at the lower left corner of the heat transfer plate. The other of the pair of second heat transfer medium ports is arranged in the lower right corner of the heat transfer plate; or one of the pair of first heat transfer medium ports is arranged in the upper left corner of the heat transfer plate. , the other of the pair of first heat transfer medium ports is arranged at the lower right corner of the heat transfer plate, and the other of the pair of second heat transfer medium ports is arranged at the upper right corner of the heat transfer plate, and the one Another one of the second heat transfer medium ports is provided in the lower left corner of the heat transfer plate.
根据本发明的实施例，所述一对第一传热介质端口中的每一个具有通向所述多个第一换热空间的多个第一开口；所述一对第二传热介质端口中的每一个具有通向所述多个第二换热空间的多个第二开口；以及所述一对第三传热介质端口中的每一个具有通向所述多个第三换热空间的多个第三开口。According to an embodiment of the present invention, each of the pair of first heat transfer medium ports has a plurality of first openings leading to the plurality of first heat exchange spaces; the pair of second heat transfer medium ports Each of the pair of third heat transfer medium ports has a plurality of second openings leading to the plurality of second heat exchange spaces; and each of the pair of third heat transfer medium ports has a plurality of second openings leading to the plurality of third heat exchange spaces. of multiple third openings.
根据本发明的实施例，所述多个第一换热空间和所述多个第二换热空间中的每一个在传热板的重叠方向上的两侧均与所述第三换热空间相邻；和/或所述多个第三换热空间中的每一个在传热板的重叠方向上的两侧与所述第一换热空间或所述第二换热空间相邻。According to an embodiment of the present invention, each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is connected to the third heat exchange space on both sides in the overlapping direction of the heat transfer plates. Adjacent; and/or each of the plurality of third heat exchange spaces is adjacent to the first heat exchange space or the second heat exchange space on both sides in the overlapping direction of the heat transfer plates.
根据本发明的实施例，所述第一传热介质和所述第二传热介质是制冷剂，所述第三传热介质是载冷剂。According to an embodiment of the present invention, the first heat transfer medium and the second heat transfer medium are refrigerants, and the third heat transfer medium is a brine.
根据本发明的实施例，所述第一换热空间、第二换热空间及第三换热空间之间是相互独立的。According to an embodiment of the present invention, the first heat exchange space, the second heat exchange space and the third heat exchange space are independent of each other.
采用根据本发明的实施例的板式换热器可以优化用于每个回路的传热面积以提高换热效率。Using the plate heat exchanger according to the embodiment of the present invention can optimize the heat transfer area for each circuit to improve the heat exchange efficiency.
附图说明Description of the drawings
图1为根据本发明的实施例的板式换热器的示意轮廓图；Figure 1 is a schematic outline view of a plate heat exchanger according to an embodiment of the present invention;
图2为传统的板式换热器的流道示意图；Figure 2 is a schematic diagram of the flow channel of a traditional plate heat exchanger;
图3为图2所示的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口；Figure 3 is a partial schematic diagram of the plate heat exchanger shown in Figure 2, which shows the first heat transfer medium port, the second heat transfer medium port and the third heat transfer medium port;
图4为根据本发明的实施例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第 一换热空间的数量和第二换热空间的数量的比值是3；4 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention. The figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. The ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 3;
图5为根据本发明的实施例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第一换热空间的数量和第二换热空间的数量的比值是2；Figure 5 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention. The figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. The first heat exchange space has The ratio of the number to the number of the second heat exchange space is 2;
图6为根据本发明的实施例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第一换热空间的数量和第二换热空间的数量的比值是1.5；Figure 6 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the present invention. The figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. The first heat transfer space has The ratio of the number to the number of the second heat exchange space is 1.5;
图7为根据图6所示的实施例的一个变形例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第一换热空间的数量和第二换热空间的数量的比值是1.5，第一换热空间和第二换热空间采用另一种示例方式进行排列；Figure 7 is a partial schematic diagram of a plate heat exchanger according to a modification of the embodiment shown in Figure 6. The figure shows a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. The ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in another example manner;
图8为根据图6所示的实施例的另一个变形例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第一换热空间的数量和第二换热空间的数量的比值是1.5，第一换热空间和第二换热空间采用又一种示例方式进行排列；以及Fig. 8 is a partial schematic diagram of a plate heat exchanger according to another modification of the embodiment shown in Fig. 6, showing a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. , the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in yet another example manner; and
图9为根据图6所示的实施例的又一个变形例的板式换热器的局部示意图，图中示出了第一传热介质端口、第二传热介质端口和第三传热介质端口，第一换热空间的数量和第二换热空间的数量的比值是1.5，第一换热空间和第二换热空间采用再一种示例方式进行排列。Figure 9 is a partial schematic diagram of a plate heat exchanger according to yet another modification of the embodiment shown in Figure 6, showing a first heat transfer medium port, a second heat transfer medium port and a third heat transfer medium port. , the ratio of the number of first heat exchange spaces to the number of second heat exchange spaces is 1.5, and the first heat exchange spaces and the second heat exchange spaces are arranged in yet another example manner.
具体实施方式Detailed ways
下面结合附图及具体实施方式对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
参见图1、图4至图9，根据本发明的实施例的板式换热器100包括：多个传热板10；以及形成在所述多个传热板10中的相邻传热板10之间的换热空间，所述换热空间包括用于第一传热介质的多个第一换热空间20A、用于第二传热介质的多个第二换热空间20B和用于第三传热介质的多个第三换热空间20C，所述多个第一换热空间20A和多个第二换热空间20B中的每一个在传热板10的重叠方向上都与多个第三换热空间20C中的一个或两个相邻，例如与多个第三换 热空间20C中的两个相邻。以所述多个第一换热空间20A的数量多于所述多个第二换热空间20B的数量为例。所述多个第一换热空间20A的数量与所述多个第二换热空间20B的数量的比值大于1，例如大于1.05、1.1、1.15等。所述多个第一换热空间20A的数量与所述多个第二换热空间20B的数量的比值可以介于1.1至5之间。图中所示的板式换热器100是双回路换热器。第一换热空间20A、第二换热空间20B及第三换热空间20C之间是相互独立的。多个第一换热空间20A和多个第二换热空间20B中的每一个在传热板的重叠方向上的两侧均与一个第三换热空间20C相邻。多个第三换热空间20C在传热板的重叠方向上的两侧与第一换热空间20A或第二换热空间20B相邻。第一换热空间20A的第一传热介质与第三换热空间20C的第三换热介质热交换，第二换热空间20B的第二传热介质与第三换热空间20C的第三换热介质热交换。可以根据系统运行需要，只运行第一换热空间20A所在的回路或只运行第二换热空间20B所在的回路，或者同时运行第一换热空间20A所在的回路和第二换热空间20B所在的回路。理论上，如果第一换热空间20A的数量与第二换热空间20B的数量之和是N，则存在(N-1)个第一换热空间20A的数量与第二换热空间20B的数量的比值。Referring to Figures 1, 4 to 9, a plate heat exchanger 100 according to an embodiment of the present invention includes: a plurality of heat transfer plates 10; and adjacent heat transfer plates 10 formed in the plurality of heat transfer plates 10 The heat exchange space includes a plurality of first heat exchange spaces 20A for the first heat transfer medium, a plurality of second heat exchange spaces 20B for the second heat transfer medium, and a plurality of second heat exchange spaces 20B for the second heat transfer medium. A plurality of third heat exchange spaces 20C of three heat transfer media. Each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is connected with a plurality of heat transfer plates 10 in the overlapping direction. One or two of the third heat exchange spaces 20C are adjacent, for example, with a plurality of third heat exchange spaces. Two of the hot spaces 20C are adjacent. As an example, the number of the plurality of first heat exchange spaces 20A is greater than the number of the plurality of second heat exchange spaces 20B. The ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B is greater than 1, for example, greater than 1.05, 1.1, 1.15, etc. The ratio of the number of the first heat exchange spaces 20A to the number of the second heat exchange spaces 20B may be between 1.1 and 5. The plate heat exchanger 100 shown in the figure is a double-circuit heat exchanger. The first heat exchange space 20A, the second heat exchange space 20B and the third heat exchange space 20C are independent of each other. Each of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B is adjacent to one third heat exchange space 20C on both sides in the overlapping direction of the heat transfer plates. The plurality of third heat exchange spaces 20C are adjacent to the first heat exchange space 20A or the second heat exchange space 20B on both sides in the overlapping direction of the heat transfer plates. The first heat transfer medium in the first heat exchange space 20A exchanges heat with the third heat exchange medium in the third heat exchange space 20C, and the second heat transfer medium in the second heat exchange space 20B exchanges heat with the third heat transfer medium in the third heat exchange space 20C. Heat exchange medium heat exchange. According to the system operation needs, only the circuit where the first heat exchange space 20A is located or only the circuit where the second heat exchange space 20B is located can be operated, or the circuit where the first heat exchange space 20A and the second heat exchange space 20B are located can be operated at the same time. of loop. Theoretically, if the sum of the number of first heat exchange spaces 20A and the number of second heat exchange spaces 20B is N, then there are (N-1) first heat exchange spaces 20A and second heat exchange spaces 20B. Quantity ratio.
参见图4至图7和图9，根据本发明的实施例，多个第一换热空间组和多个第二换热空间组在传热板10的重叠方向上交替排列。由此以蒸发器为例，例如当只运行一个回路时，可以防止与另一个回路相邻的第三换热空间的第三传热介质发生冰冻。所述多个第一换热空间组中的每一个包括一个或多个第一换热空间20A，所述多个第二换热空间组中的每一个包括一个或多个第二换热空间20B。所述多个第一换热空间组中的至少两个第一换热空间组可以包括相同数量的第一换热空间20A或不同数量的第一换热空间20A；和/或所述多个第二换热空间组中的至少两个第二换热空间组可以包括相同数量的第二换热空间20B或不同数量的第二换热空间20B。Referring to FIGS. 4 to 7 and 9 , according to an embodiment of the present invention, a plurality of first heat exchange space groups and a plurality of second heat exchange space groups are alternately arranged in the overlapping direction of the heat transfer plates 10 . Taking the evaporator as an example, for example, when only one circuit is operated, the third heat transfer medium in the third heat exchange space adjacent to the other circuit can be prevented from freezing. Each of the plurality of first heat exchange space groups includes one or more first heat exchange spaces 20A, and each of the plurality of second heat exchange space groups includes one or more second heat exchange spaces. 20B. At least two first heat exchange space groups among the plurality of first heat exchange space groups may include the same number of first heat exchange spaces 20A or different numbers of first heat exchange spaces 20A; and/or the plurality of first heat exchange space groups may include the same number of first heat exchange spaces 20A or different numbers of first heat exchange spaces 20A. At least two of the second heat exchange space groups may include the same number of second heat exchange spaces 20B or different numbers of second heat exchange spaces 20B.
参见图8和图9，根据本发明的实施例，针对第一换热空间20A和第二换热空间20B而言(即在不考虑第三换热空间20C的情况下)， 所述多个第一换热空间20A在传热板10的重叠方向上连续排列；和/或针对第一换热空间20A和第二换热空间20B而言(即在不考虑第三换热空间20C的情况下)，所述多个第二换热空间20B在传热板10的重叠方向上连续排列。Referring to Figures 8 and 9, according to an embodiment of the present invention, for the first heat exchange space 20A and the second heat exchange space 20B (that is, without considering the third heat exchange space 20C), The plurality of first heat exchange spaces 20A are continuously arranged in the overlapping direction of the heat transfer plates 10; and/or for the first heat exchange space 20A and the second heat exchange space 20B (that is, without considering the third heat exchange space) In the case of space 20C), the plurality of second heat exchange spaces 20B are continuously arranged in the overlapping direction of the heat transfer plates 10 .
参见图4至图9，根据本发明的实施例，所述多个第一换热空间20A和所述多个第二换热空间20B组成的多个换热空间与所述多个第三换热空间20C在传热板10的重叠方向上交替排列。Referring to FIGS. 4 to 9 , according to an embodiment of the present invention, a plurality of heat exchange spaces composed of the plurality of first heat exchange spaces 20A and the plurality of second heat exchange spaces 20B are combined with the plurality of third heat exchange spaces. The heat spaces 20C are alternately arranged in the overlapping direction of the heat transfer plates 10 .
根据本发明的实施例，如果限定第一换热空间20A的数量与第二换热空间20B的数量的比值为λ，则存在种第一换热空间20A与第二换热空间20B的排列方式。According to an embodiment of the present invention, if the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B is defined as λ, then there is An arrangement of the first heat exchange space 20A and the second heat exchange space 20B.
参见图1、图4至图9，根据本发明的实施例的板式换热器100还包括：分别用于第一传热介质流入所述多个第一换热空间20A和用于第一传热介质流出所述多个第一换热空间20A的一对第一传热介质端口30A；分别用于第二传热介质流入所述多个第二换热空间20B和用于第二传热介质流出所述多个第二换热空间20B的一对第二传热介质端口30B；以及分别用于第三传热介质流入所述多个第三换热空间20C和用于第三传热介质流出所述多个第三换热空间20C的一对第三传热介质端口30C。在图1所示的示例中，位于板式换热器100的下侧的第一传热介质端口30A和第二传热介质端口30B是传热介质流入端口，而位于板式换热器100的上侧的第一传热介质端口30A和第二传热介质端口30B是传热介质流出端口，位于板式换热器100的下侧的第三传热介质端口30C是传热介质流出端口，而位于板式换热器100的上侧的第三传热介质端口30C是传热介质流入端口。第一传热介质和第二传热介质可以相同或者不同，第一传热介质和第二传热介质可以是制冷剂，而第三传热介质可以是载冷剂，例如可以是水、乙二醇溶液或乙醇溶液等。第一传热介质和第二传热介质与第三换热介质存在温度差以在板式换热器100运行时进行热交换。Referring to Figure 1, Figure 4 to Figure 9, the plate heat exchanger 100 according to the embodiment of the present invention further includes: respectively used for the first heat transfer medium to flow into the plurality of first heat exchange spaces 20A and for the first heat transfer space 20A. The heat medium flows out of a pair of first heat transfer medium ports 30A of the plurality of first heat exchange spaces 20A; respectively for the second heat transfer medium to flow into the plurality of second heat exchange spaces 20B and for the second heat transfer A pair of second heat transfer medium ports 30B where the medium flows out of the plurality of second heat exchange spaces 20B; and a pair of second heat transfer medium ports 30B for the third heat transfer medium to flow into the plurality of third heat exchange spaces 20C and for the third heat transfer space respectively. The medium flows out of a pair of third heat transfer medium ports 30C of the plurality of third heat exchange spaces 20C. In the example shown in FIG. 1 , the first heat transfer medium port 30A and the second heat transfer medium port 30B located on the lower side of the plate heat exchanger 100 are heat transfer medium inflow ports, while the first heat transfer medium port 30B located on the upper side of the plate heat exchanger 100 The first heat transfer medium port 30A and the second heat transfer medium port 30B on the side are the heat transfer medium outflow ports, the third heat transfer medium port 30C located on the lower side of the plate heat exchanger 100 is the heat transfer medium outflow port, and the third heat transfer medium port 30C located on the lower side of the plate heat exchanger 100 is a heat transfer medium outflow port. The third heat transfer medium port 30C on the upper side of the plate heat exchanger 100 is a heat transfer medium inflow port. The first heat transfer medium and the second heat transfer medium may be the same or different. The first heat transfer medium and the second heat transfer medium may be refrigerant, and the third heat transfer medium may be a brine, such as water or ethanol. Glycol solution or ethanol solution, etc. There is a temperature difference between the first heat transfer medium, the second heat transfer medium and the third heat exchange medium to perform heat exchange when the plate heat exchanger 100 is running.
参见图1，根据本发明的实施例，所述一对第一传热介质端口30A中的一个设置在传热板10的左上角，所述一对第一传热介质端口30A中的另一个设置在传热板10的左下角，并且所述一对第二传 热介质端口30B中的一个设置在传热板10的右上角，所述一对第二传热介质端口30B中的另一个设置在传热板10的右下角，由此限定平行流换热方式。作为替代方式，所述一对第一传热介质端口30A中的一个设置在传热板10的左上角，所述一对第一传热介质端口30A中的另一个设置在传热板10的右下角，并且所述一对第二传热介质端口30B中的一个设置在传热板10的右上角，所述一对第二传热介质端口30B中的另一个设置在传热板10的左下角，由此限定交叉流换热方式。在图中所示的实施例中，板式换热器100的上侧和板式换热器100的下侧，第三传热介质端口30C都设置在第一传热介质端口30A与第二传热介质端口30B之间。Referring to Figure 1, according to an embodiment of the present invention, one of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10, and the other of the pair of first heat transfer medium ports 30A is provided at the lower left corner of the heat transfer plate 10, and the pair of second transfer One of the heat transfer medium ports 30B is disposed at the upper right corner of the heat transfer plate 10, and the other of the pair of second heat transfer medium ports 30B is disposed at the lower right corner of the heat transfer plate 10, thus defining a parallel flow heat exchange mode. . As an alternative, one of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10 , and the other of the pair of first heat transfer medium ports 30A is disposed at the upper left corner of the heat transfer plate 10 and one of the pair of second heat transfer medium ports 30B is disposed on the upper right corner of the heat transfer plate 10 , and the other of the pair of second heat transfer medium ports 30B is disposed on the upper right corner of the heat transfer plate 10 Lower left corner, thus defining the cross-flow heat transfer mode. In the embodiment shown in the figure, on the upper side of the plate heat exchanger 100 and on the lower side of the plate heat exchanger 100, the third heat transfer medium port 30C is disposed between the first heat transfer medium port 30A and the second heat transfer medium port 30A. between media ports 30B.
参见图4至图9，根据本发明的实施例，所述一对第一传热介质端口30A中的每一个具有通向所述多个第一换热空间20A的多个第一开口31A；所述一对第二传热介质端口30B中的每一个具有通向所述多个第二换热空间20B的多个第二开口31B；以及所述一对第三传热介质端口30C中的每一个具有通向所述多个第三换热空间20C的多个第三开口31C。在图中，用箭头指出了所有开口的位置。在端口处，在没有开口的位置在相邻的传热板10之间设置阻挡环5，在相邻的传热板10之间没有阻挡环5的位置形成开口；或者在端口中设置分配器，分配器具有通向换热空间的开口。此外，也可以采用其它合适的方式形成通向换热空间的开口。Referring to Figures 4 to 9, according to an embodiment of the present invention, each of the pair of first heat transfer medium ports 30A has a plurality of first openings 31A leading to the plurality of first heat exchange spaces 20A; Each of the pair of second heat transfer medium ports 30B has a plurality of second openings 31B leading to the plurality of second heat exchange spaces 20B; and one of the pair of third heat transfer medium ports 30C Each has a plurality of third openings 31C leading to the plurality of third heat exchange spaces 20C. In the diagram, arrows indicate the location of all openings. At the port, a blocking ring 5 is provided between adjacent heat transfer plates 10 where there is no opening, and an opening is formed between adjacent heat transfer plates 10 where there is no blocking ring 5; or a distributor is provided in the port. , the distributor has an opening leading to the heat exchange space. In addition, other suitable ways can also be used to form the openings leading to the heat exchange space.
根据本发明的实施例，第一换热空间20A的数量与第二换热空间20B的数量的比值大于1，由此可以优化用于每个回路的传热面积以提高换热效率。根据每个回路的热负荷优化每个回路的传热面积，系统效率在满负荷和部分负荷下可以提高5％至10％，同时避免了诸如传热介质的滞留等可靠性间题。此外，调整第一换热空间20A的数量与第二换热空间20B的数量的比值不会影响产品制造的可行性，并且不会引起成本的增加。According to an embodiment of the present invention, the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B is greater than 1, whereby the heat transfer area for each circuit can be optimized to improve heat exchange efficiency. By optimizing the heat transfer area of each loop according to the heat load of each loop, the system efficiency can be increased by 5% to 10% at full load and part load, while avoiding reliability issues such as retention of the heat transfer medium. In addition, adjusting the ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B will not affect the feasibility of product manufacturing and will not cause an increase in cost.
尽管上述实施例描述了第一换热空间20A的数量与第二换热空间20B的数量的特定比例以及第一换热空间20A与第二换热空间20B的特定排列方式，但是本发明不限于上述的实施例，第一换热空 间20A的数量与第二换热空间20B的数量的比例可以是任何其它大于1的数值，并且第一换热空间20A与第二换热空间20B可以以任何其它方式进行排列。 Although the above embodiments describe a specific ratio of the number of first heat exchange spaces 20A to the number of second heat exchange spaces 20B and a specific arrangement of the first heat exchange spaces 20A and the second heat exchange spaces 20B, the present invention is not limited to In the above embodiment, the first heat exchange air The ratio of the number of rooms 20A to the number of second heat exchange spaces 20B may be any other value greater than 1, and the first heat exchange spaces 20A and the second heat exchange spaces 20B may be arranged in any other manner.

Claims (13)

  1. 一种板式换热器，包括：A plate heat exchanger, including:
    多个传热板；以及multiple heat transfer plates; and
    形成在所述多个传热板中的相邻传热板之间的换热空间，所述换热空间包括用于第一传热介质的多个第一换热空间、用于第二传热介质的多个第二换热空间和用于第三传热介质的多个第三换热空间，所述多个第一换热空间和多个第二换热空间中的每一个在传热板的重叠方向上都与多个第三换热空间中的一个或两个相邻，A heat exchange space is formed between adjacent heat transfer plates among the plurality of heat transfer plates, the heat exchange space includes a plurality of first heat exchange spaces for the first heat transfer medium, a plurality of first heat exchange spaces for the second heat transfer medium, A plurality of second heat exchange spaces for the heat medium and a plurality of third heat exchange spaces for the third heat transfer medium, each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is used for heat transfer. The hot plates are adjacent to one or two of the plurality of third heat exchange spaces in the overlapping direction,
    其中所述多个第一换热空间的数量与所述多个第二换热空间的数量不同。The number of the plurality of first heat exchange spaces is different from the number of the plurality of second heat exchange spaces.
  2. 如权利要求1所述的板式换热器，其中：The plate heat exchanger as claimed in claim 1, wherein:
    所述多个第一换热空间的数量与所述多个第二换热空间的数量中数量大的换热空间的数量与数量少的换热空间的数量的比值大于1.05。The ratio of the number of heat exchange spaces with a larger number to the number of heat exchange spaces with a smaller number among the number of the plurality of first heat exchange spaces and the number of the plurality of second heat exchange spaces is greater than 1.05.
  3. 如权利要求1所述的板式换热器，其中：The plate heat exchanger as claimed in claim 1, wherein:
    所述多个第一换热空间的数量与所述多个第二换热空间的数量中数量大的换热空间的数量与数量少的换热空间的数量的比值介于1.1至5之间。A ratio of a larger number of heat exchange spaces to a smaller number of heat exchange spaces among the number of first heat exchange spaces and the number of second heat exchange spaces is between 1.1 and 5. .
  4. 如权利要求1所述的板式换热器，其中：The plate heat exchanger as claimed in claim 1, wherein:
    多个第一换热空间组和多个第二换热空间组在传热板的重叠方向上交替排列，所述多个第一换热空间组中的每一个包括一个或多个第一换热空间，所述多个第二换热空间组中的每一个包括一个或多个第二换热空间。A plurality of first heat exchange space groups and a plurality of second heat exchange space groups are alternately arranged in the overlapping direction of the heat transfer plates. Each of the plurality of first heat exchange space groups includes one or more first heat exchange space groups. A thermal space, each of the plurality of second heat exchange space groups includes one or more second heat exchange spaces.
  5. 如权利要求4所述的板式换热器，其中：The plate heat exchanger as claimed in claim 4, wherein:
    所述多个第一换热空间组中的至少两个第一换热空间组包括相 同数量的第一换热空间或不同数量的第一换热空间；和/或At least two first heat exchange space groups among the plurality of first heat exchange space groups include phase The same number of first heat exchange spaces or different numbers of first heat exchange spaces; and/or
    所述多个第二换热空间组中的至少两个第二换热空间组包括相同数量的第二换热空间或不同数量的第二换热空间。At least two second heat exchange space groups among the plurality of second heat exchange space groups include the same number of second heat exchange spaces or different numbers of second heat exchange spaces.
  6. 如权利要求1所述的板式换热器，其中：The plate heat exchanger as claimed in claim 1, wherein:
    针对第一换热空间和第二换热空间而言，所述多个第一换热空间在传热板的重叠方向上连续排列；和/或For the first heat exchange space and the second heat exchange space, the plurality of first heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates; and/or
    针对第一换热空间和第二换热空间而言，所述多个第二换热空间在传热板的重叠方向上连续排列。Regarding the first heat exchange space and the second heat exchange space, the plurality of second heat exchange spaces are continuously arranged in the overlapping direction of the heat transfer plates.
  7. 如权利要求1所述的板式换热器，其中：The plate heat exchanger as claimed in claim 1, wherein:
    所述多个第一换热空间和所述多个第二换热空间组成的多个换热空间与所述多个第三换热空间在传热板的重叠方向上交替排列。A plurality of heat exchange spaces composed of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces and the plurality of third heat exchange spaces are alternately arranged in the overlapping direction of the heat transfer plates.
  8. 如权利要求1所述的板式换热器，还包括：The plate heat exchanger as claimed in claim 1, further comprising:
    分别用于第一传热介质流入所述多个第一换热空间和用于第一传热介质流出所述多个第一换热空间的一对第一传热介质端口；A pair of first heat transfer medium ports respectively used for the first heat transfer medium to flow into the plurality of first heat exchange spaces and for the first heat transfer medium to flow out of the plurality of first heat exchange spaces;
    分别用于第二传热介质流入所述多个第二换热空间和用于第二传热介质流出所述多个第二换热空间的一对第二传热介质端口；以及A pair of second heat transfer medium ports respectively used for the second heat transfer medium to flow into the plurality of second heat exchange spaces and for the second heat transfer medium to flow out of the plurality of second heat exchange spaces; and
    分别用于第三传热介质流入所述多个第三换热空间和用于第三传热介质流出所述多个第三换热空间的一对第三传热介质端口。A pair of third heat transfer medium ports are respectively used for the third heat transfer medium to flow into the plurality of third heat exchange spaces and for the third heat transfer medium to flow out of the plurality of third heat exchange spaces.
  9. 如权利要求8所述的板式换热器，其中：The plate heat exchanger as claimed in claim 8, wherein:
    所述一对第一传热介质端口中的一个设置在传热板的左上角，所述一对第一传热介质端口中的另一个设置在传热板的左下角，并且所述一对第二传热介质端口中的一个设置在传热板的右上角，所述一对第二传热介质端口中的另一个设置在传热板的右下角；或者One of the pair of first heat transfer medium ports is disposed at the upper left corner of the heat transfer plate, the other of the pair of first heat transfer medium ports is disposed at the lower left corner of the heat transfer plate, and the pair One of the second heat transfer medium ports is disposed in the upper right corner of the heat transfer plate, and the other of the pair of second heat transfer medium ports is disposed in the lower right corner of the heat transfer plate; or
    所述一对第一传热介质端口中的一个设置在传热板的左上角，所述一对第一传热介质端口中的另一个设置在传热板的右下角，并且所述一对第二传热介质端口中的一个设置在传热板的右上角，所述一 对第二传热介质端口中的另一个设置在传热板的左下角。One of the pair of first heat transfer medium ports is disposed at the upper left corner of the heat transfer plate, the other of the pair of first heat transfer medium ports is disposed at the lower right corner of the heat transfer plate, and the pair One of the second heat transfer medium ports is provided at the upper right corner of the heat transfer plate, and the first Another one of the second heat transfer medium ports is provided in the lower left corner of the heat transfer plate.
  10. 如权利要求8所述的板式换热器，其中：The plate heat exchanger as claimed in claim 8, wherein:
    所述一对第一传热介质端口中的每一个具有通向所述多个第一换热空间的多个第一开口；Each of the pair of first heat transfer medium ports has a plurality of first openings leading to the plurality of first heat exchange spaces;
    所述一对第二传热介质端口中的每一个具有通向所述多个第二换热空间的多个第二开口；以及Each of the pair of second heat transfer medium ports has a plurality of second openings leading to the plurality of second heat exchange spaces; and
    所述一对第三传热介质端口中的每一个具有通向所述多个第三换热空间的多个第三开口。Each of the pair of third heat transfer medium ports has a plurality of third openings leading to the plurality of third heat exchange spaces.
  11. 如权利要求1-10中的任一项所述的板式换热器，其中：所述多个第一换热空间和所述多个第二换热空间中的每一个在传热板的重叠方向上的两侧均与所述第三换热空间相邻；和/或The plate heat exchanger according to any one of claims 1 to 10, wherein each of the plurality of first heat exchange spaces and the plurality of second heat exchange spaces is located at an overlap of the heat transfer plate. Both sides in the direction are adjacent to the third heat exchange space; and/or
    所述多个第三换热空间中的每一个在传热板的重叠方向上的两侧与所述第一换热空间或所述第二换热空间相邻。Each of the plurality of third heat exchange spaces is adjacent to the first heat exchange space or the second heat exchange space on both sides in the overlapping direction of the heat transfer plates.
  12. 如权利要求1-10中的任一项所述的板式换热器，其中：The plate heat exchanger according to any one of claims 1-10, wherein:
    所述第一传热介质和所述第二传热介质是制冷剂，所述第三传热介质是载冷剂。The first heat transfer medium and the second heat transfer medium are refrigerants, and the third heat transfer medium is a brine.
  13. 如权利要求1-10中的任一项所述的板式换热器，其中：The plate heat exchanger according to any one of claims 1-10, wherein:
    所述第一换热空间、第二换热空间及第三换热空间之间是相互独立的。 The first heat exchange space, the second heat exchange space and the third heat exchange space are independent of each other.
PCT/CN2023/078407 2022-03-25 2023-02-27 Plate heat exchanger WO2023179313A1 (en)

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JP2015137844A (en) * 2014-01-24 2015-07-30 株式会社日阪製作所 plate heat exchanger
JP2015169349A (en) * 2014-03-05 2015-09-28 株式会社日阪製作所 Plate type heat exchanger
CN109477693A (en) * 2016-07-11 2019-03-15 新加坡国立大学 Multifluid heat exchanger
CN111316057A (en) * 2017-08-31 2020-06-19 达纳加拿大公司 Multi-fluid heat exchanger
JP2021116957A (en) * 2020-01-24 2021-08-10 株式会社日阪製作所 Plate-type heat exchanger
CN217764597U (en) * 2022-03-25 2022-11-08 丹佛斯有限公司 Plate heat exchanger

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