Module plate shell type heat exchanger

Abstract

The utility model discloses a module plate shell type heat exchanger, which relates to the technical field of heat exchangers, and particularly structurally comprises a shell, a heat exchanger, a heat exchanger and a heat exchanger, the at least two pipelines are respectively communicated with the shell, and the pipelines are arranged at intervals; the heat exchange modules are installed on the shell at intervals, and the bottoms of the heat exchange modules extend into the containing cavity; the heat exchange module comprises an end cover arranged above the shell; the tube plate is mounted below the end cover; the heat exchange tubes are mounted on the tube plate at intervals, and the heat exchange tubes extend downwards into the containing cavity. The plate-shell type heat exchanger solves the technical problems that an existing plate-shell type heat exchanger is difficult to install and not beneficial to maintenance.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a modular plate-shell heat exchanger. Background Technology

[0002] Plate heat exchangers, currently the most efficient heat exchangers, have been widely used in many fields. Especially in petroleum and petrochemical processes such as reforming, disproportionation, methanol production, and isomerization, these processes operate in harsh environments with high temperatures, high pressures, and high heat loads. Therefore, the equipment on these process lines must not only possess excellent heat exchange performance but also high pressure resistance, low thermal stress, and the ability to withstand high-temperature media impacts.

[0003] Existing plate heat exchangers typically consist of multiple plates that are fitted together to form a heat exchange core, which is then placed inside the shell to form the heat exchanger. However, installing multiple plates is inconvenient and complex; moreover, subsequent maintenance requires complete disassembly and assembly, which is not conducive to replacement and maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a modular plate-and-shell heat exchanger that solves the technical problems of difficult installation and maintenance of existing plate-and-shell heat exchangers.

[0005] This application discloses a modular plate-and-shell heat exchanger, comprising:

[0006] The outer casing has an accommodating cavity inside;

[0007] At least two pipes are connected to the outer casing, and the pipes are spaced apart.

[0008] Multiple heat exchange modules are installed at intervals on the outer casing, and the bottom of each heat exchange module extends into the accommodating cavity;

[0009] The heat exchange module includes:

[0010] End caps are disposed on the upper part of the outer casing;

[0011] Tube sheet, installed below the end cap;

[0012] Multiple heat exchange tubes are installed at intervals on the tube sheet, and the heat exchange tubes extend downward into the accommodating cavity.

[0013] This application adopts a modular design for the heat exchange section to facilitate subsequent installation and replacement.

[0014] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0015] Furthermore, the cavity is provided with multiple baffles;

[0016] The baffle plate includes:

[0017] A transverse plate is installed laterally in the accommodating cavity;

[0018] A vertical plate is installed inside the accommodating cavity, and the vertical plate is perpendicular to the horizontal plate; the vertical plate and the horizontal plate cooperate to divide the accommodating cavity into multiple interconnected chambers. The beneficial effect of this step is that the design of the baffle plate can realize the division of the chambers and subsequent connection.

[0019] Furthermore, the height of the horizontal plate is lower than the height of the vertical plate;

[0020] The top of the vertical plate is connected to the inner top wall of the outer shell. The advantage of this step is that it facilitates the subsequent formation of gaps, i.e., flow channels.

[0021] Furthermore, a gap is left between the top of the transverse plate and the inner top wall of the accommodating cavity;

[0022] The chambers located on both sides of the transverse plate are connected through the gap. The advantage of this step is that the gap facilitates fluid flow.

[0023] Furthermore, the horizontal plate divides the vertical plate into a first vertical plate segment and a second vertical plate segment. A through groove is provided at the bottom of the first vertical plate segment. The beneficial effect of this step is that the through groove facilitates fluid flow.

[0024] Furthermore, the chamber is divided into:

[0025] The first chamber has the through groove formed on one side wall of the first chamber;

[0026] The second chamber has no through slot on its side wall and is located at both ends of the accommodating cavity. The advantage of this step is that it designs the chambers and utilizes conventional methods to achieve communication between the chambers.

[0027] Furthermore, the pipes are connected to the second chamber respectively. The advantage of this step is that it facilitates the entry and exit of fluid.

[0028] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0029] 1. This application designs a plate heat exchanger and modularizes the heat exchange unit, which facilitates subsequent replacement and adjustment.

[0030] 2. This application also includes baffles, and specific designs are made for the horizontal and vertical plates to enable the separated chambers to communicate with each other, realize the movement of the corresponding fluids, and ensure the heat exchange effect. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a modular plate-shell heat exchanger according to a specific embodiment of the present utility model;

[0033] Figure 2 for Figure 1 A schematic diagram of the outer shell structure;

[0034] Figure 3 for Figure 1 A schematic diagram of the heat exchange module in the diagram;

[0035] Figure 4 for Figure 2 Another structural diagram;

[0036] Figure label:

[0037] 1-Outer shell; 2-Pipeline; 3-Heat exchange module; 4-Baffle plate;

[0038] 101 - Accommodating cavity;

[0039] 301 - End cap; 302 - Tube sheet; 303 - Heat exchanger tube;

[0040] 401-Horizontal plate; 402-Vertical plate; 403-Cavity; 404-Gap; 405-First vertical plate section; 406-Second vertical plate section; 407-Through groove; 408-First chamber; 409-Second chamber. Detailed Implementation

[0041] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0042] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0045] Example:

[0046] like Figure 1-4 As shown, this application discloses a modular plate-and-shell heat exchanger, which is modularly designed with the heat exchange unit as a module, making it easy to replace and maintain.

[0047] like Figure 1 As shown, the specific structure of this application includes:

[0048] The outer shell 1 has an internal cavity 101. The outer shell 1 is preferably square and is used as the shell of a heat exchanger.

[0049] At least two pipes 2 are connected to the outer shell 1 respectively, and the pipes 2 are spaced apart. The pipes 2 serve as inlets and outlets to allow the medium to be heat exchanged to be introduced.

[0050] Multiple heat exchange modules 3 are installed at intervals on the outer shell 1, and the bottom of the heat exchange module 3 extends into the accommodating cavity 101. The heat exchange module 3 in this application is installed vertically, that is, in the form of vertical insertion. Specifically, it is vertically inserted into the cavity to be described later, one-to-one, so as to facilitate subsequent heat exchange.

[0051] Specifically, if Figure 3 As shown, the heat exchange module 3 in this application includes:

[0052] End cap 301 is disposed on the upper part of the outer shell 1. The end cap 301 mainly serves a sealing function to prevent leakage or other situations.

[0053] Tube sheet 302 is installed below the end cap 301. Tube sheet 302 is used to ensure the stability of subsequent heat exchange tubes, thereby ensuring the overall strength of the heat exchanger.

[0054] Multiple heat exchange tubes 303 are installed at intervals on the tube sheet 302, and the heat exchange tubes 303 extend downward into the accommodating cavity 101, so that heat exchange can be completed.

[0055] In order to realize the flow of medium inside the accommodating cavity 101, the accommodating cavity 101 of this application is provided with multiple baffles 4, which can not only change the flow direction of the medium, but also cooperate with the corresponding heat exchange tubes to form heat exchange units.

[0056] Specifically, if Figure 2 As shown, the baffle 4 includes:

[0057] A transverse plate 401 is installed transversely in the accommodating cavity 101;

[0058] A vertical plate 402 is installed inside the accommodating cavity 101, and the vertical plate 402 is perpendicular to the horizontal plate 401. The vertical plate 402 and the horizontal plate 401 cooperate with each other to divide the accommodating cavity 101 into multiple interconnected chambers 403. As mentioned above, each chamber 403 cooperates with a heat exchange module 3, and can complete heat exchange when the medium flows.

[0059] In order to enable the fluid medium to flow between the various chambers 403, the horizontal plate 401 and the vertical plate 402 are designed. Specifically, the height of the horizontal plate 401 is lower than the height of the vertical plate 402.

[0060] The top of the vertical plate 402 is connected to the inner top wall of the outer shell 1; a gap 404 is left between the top of the horizontal plate 401 and the top inner wall of the accommodating cavity 101.

[0061] The chambers 403 located on both sides of the transverse plate 401 are connected through the gap 404. That is, the height of the transverse plate 401 in this application is relatively low. The gap 404 formed in this way can facilitate the flow between the various chambers, thereby ensuring the heat exchange effect.

[0062] In order to achieve interconnection between the chambers 403, the baffle plate 4 is designed. Specifically, the horizontal plate 401 divides the vertical plate 402 into a first vertical plate section 405 and a second vertical plate section 406. The bottom of the first vertical plate section 405 is provided with a through groove 407, which can be used to achieve communication between the chambers 403, thereby ensuring the heat exchange effect.

[0063] The chambers described in this application are of two types. One type is a first chamber 408, in which the through groove 407 is provided on one side wall. The other type is a second chamber 409, in which the through groove 407 is not provided on the side wall, and the second chamber 409 is located at both ends of the accommodating cavity 101.

[0064] The pipe 2 is connected to the second chamber 409.

[0065] The following is combined with Figure 4 To further explain, specifically, the first chamber in the lower left of the attached figure is the second chamber 409, and the three chambers adjacent to it are the first chambers 408. At the same time, the second chamber 409 is connected to a pipe 2; the first chamber in the lower right of the attached figure is also the second chamber 409, and the three chambers adjacent to it are the first chambers 408. At the same time, the second chamber 409 is connected to a pipe 2.

[0066] As can be seen from the figure, the second chamber 409 and the first chamber 408 are connected by the gap 404, and the first chamber 408 and the first chamber can be connected by the gap or by the through groove; taking the left half as an example, the first chamber in the upper left and the second chamber in the upper left are normally connected, and the second chamber in the upper left and the second chamber in the lower left are connected by the gap.

[0067] The fluid medium in this application enters through a second chamber 409 and then communicates with another second chamber 409.

[0068] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A modular plate-and-shell heat exchanger, characterized in that, include: The outer shell (1) has an accommodating cavity (101) inside. At least two pipes (2) are connected to the outer casing (1) respectively, and the pipes (2) are spaced apart; Multiple heat exchange modules (3) are installed at intervals in the outer shell (1), and the bottom of the heat exchange module (3) extends into the accommodating cavity (101); The heat exchange module (3) includes: End cap (301) is disposed above the outer shell (1); Tube sheet (302) is installed below the end cap (301); Multiple heat exchange tubes (303) are installed at intervals on the tube sheet (302), and the heat exchange tubes (303) extend downward into the accommodating cavity (101).

2. The modular plate-and-shell heat exchanger according to claim 1, characterized in that, The cavity (101) is provided with multiple baffles (4); The baffle (4) includes: A transverse plate (401) is installed transversely in the accommodating cavity (101). A vertical plate (402) is installed in the accommodating cavity (101), and the vertical plate (402) is perpendicular to the horizontal plate (401); the vertical plate (402) and the horizontal plate (401) cooperate with each other to divide the accommodating cavity (101) into a plurality of interconnected chambers (403).

3. The modular plate-and-shell heat exchanger according to claim 2, characterized in that, The height of the horizontal plate (401) is lower than the height of the vertical plate (402); The top of the vertical plate (402) is connected to the inner top wall of the outer shell (1).

4. The modular plate-and-shell heat exchanger according to claim 3, characterized in that, A gap (404) is left between the top of the transverse plate (401) and the top inner wall of the accommodating cavity (101). The chambers (403) located on both sides of the transverse plate (401) are connected through the gap (404).

5. The modular plate-and-shell heat exchanger according to claim 4, characterized in that, The horizontal plate (401) divides the vertical plate (402) into a first vertical plate segment (405) and a second vertical plate segment (406), and a through groove (407) is provided at the bottom of the first vertical plate segment (405).

6. The modular plate-and-shell heat exchanger according to claim 5, characterized in that, The chamber (403) is divided into: The first chamber (408) has the through groove (407) formed on one side wall of the first chamber (408). The second chamber (409) has no through groove (407) on its side wall, and the second chamber (409) is located at both ends of the accommodating cavity (101).

7. The modular plate-and-shell heat exchanger according to claim 6, characterized in that, The pipe (2) is connected to the second chamber (409).

Images