Sealing strip structure for plate-fin heat exchanger

Abstract

The utility model belongs to the technical field of heat exchanger accessories, and particularly relates to a sealing strip structure for a plate-fin heat exchanger, which comprises a sealing strip body and two fixing frames, the bottom of the sealing strip body is provided with a slot, the two fixing frames are symmetrically arranged on the front side wall and the rear side wall of the sealing strip body, the fixing frames are provided with screw holes, and the screw holes are communicated with the slot. According to the plate-fin heat exchanger, in the process that the plate-fin heat exchanger is assembled through the sealing strip, the partition plate and the sealing strip are connected in a positioning mode, so that connection and fixation of the sealing strip and the partition plate are achieved, installation and disassembly are convenient, welding is not needed, and the plate-fin heat exchanger is convenient to assemble and disassemble. Therefore, the replacement efficiency of the sealing strip of the plate-fin heat exchanger is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchanger accessories, specifically a sealing strip structure for a plate-fin heat exchanger. Background Technology

[0002] A heat exchanger is a compact heat exchange device with advantages such as large heat exchange area and good heat exchange performance. Heat exchangers are suitable for heat exchange between gas and gas, gas and liquid, liquid and liquid, and various fluids, as well as phase change heat exchange that involves a change of state. Through the arrangement and combination of flow channels, they can adapt to different heat exchange conditions such as counterflow, crossflow, multi-flow, and multi-pass. Through the combination of series, parallel, and series-parallel connections between units, the heat exchange needs of large equipment can be met. Plate-fin heat exchangers are mainly composed of seals, baffles, fins, and heads. Seals are an essential sealing component.

[0003] In existing technologies, the seals used in plate-fin heat exchangers are generally long strips. When assembling seals in plate-fin heat exchangers, the seals are usually fixed to the baffles by welding. This makes it inconvenient to replace the seals later. Furthermore, the welded seals are prone to wear or corrosion and require frequent re-welding. This not only increases the maintenance workload but also affects the sealing performance of the seals. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing heat exchanger accessories, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a sealing strip structure for plate-fin heat exchangers, which can fix the seal strip and the partition plate by positioning and connecting them during the assembly of the sealing strip in the plate-fin heat exchanger. This facilitates installation and disassembly, eliminates the need for welding, and makes it easier to replace the sealing strip later, thereby improving the replacement efficiency of the sealing strip in the plate-fin heat exchanger.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A sealing strip structure for a plate-fin heat exchanger includes a sealing strip body and a fixing frame. The bottom of the sealing strip body has a slot. Two fixing frames are symmetrically arranged on the front and rear side walls of the sealing strip body. Each fixing frame has a screw hole, and a screw rod is installed within the screw hole. One end of the screw rod has a knob, and the other end has a pressure plate. The pressure plate is slidably connected to the inner wall of the fixing frame. A positioning rod is provided on the side wall of the pressure plate. The front and rear side walls of the sealing strip body have insertion holes corresponding to the positioning rods. The positioning rods are slidably connected to the inner walls of the insertion holes. A partition is provided within the slot, and the side wall of the partition has positioning holes corresponding to the positioning rods.

[0009] As a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, the bottom of the sealing strip body is provided with a first heat insulation sealing gasket and a second heat insulation sealing gasket, the two first heat insulation sealing gaskets are symmetrically arranged, and the second heat insulation sealing gasket is disposed between the two first heat insulation sealing gaskets.

[0010] As a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, the side wall of the knob is provided with anti-slip texture.

[0011] As a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, baffles are symmetrically arranged on the left and right sides of the sealing strip body, and the baffles are fixedly connected to the left and right sides of the sealing strip body.

[0012] In a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, the positioning rod is embedded in the positioning hole through an insertion hole, and the sealing strip body and the partition are connected and positioned through the positioning rod and the positioning hole.

[0013] As a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, the side wall of the sealing strip body is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are evenly distributed.

[0014] As a preferred embodiment of the sealing strip structure for a plate-fin heat exchanger described in this utility model, the sealing strip body is made of aluminum alloy.

[0015] Compared with existing technologies: In this application, 1. the slot facilitates precise installation of the partition, thus facilitating the assembly of the seal body and the partition; the knob facilitates the operation of the screw rotation, which in turn pushes the pressure plate, causing the positioning rod to insert into the corresponding positioning hole, so that the pressure plate presses against the side wall of the seal body. The engagement of the positioning rod and the positioning hole facilitates the positioning of the partition, achieving the installation and fixation of the partition and the seal body. Therefore, in the process of assembling the seal in a plate-fin heat exchanger, the positioning connection between the partition and the seal achieves the installation and fixation of the seal and the partition. The connection is fixed, making installation and disassembly convenient without welding, which facilitates the replacement of the seals later, thereby improving the replacement efficiency of the plate-fin heat exchanger seals. 2. The first heat insulation sealing gasket facilitates the connection and sealing between the outer side of the partition and the seal body, and the second heat insulation sealing gasket facilitates the connection and sealing between the inner side of the partition and the seal body, thereby improving the sealing effect at the connection. At the same time, the first and second heat insulation sealing gaskets facilitate the heat insulation effect of the seal body, reducing heat transfer to the seal body and protecting the seal body from damage in high-temperature environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of a sealing strip structure for a plate-fin heat exchanger according to the present invention;

[0018] Figure 2 This is an exploded view of the sealing strip structure for a plate-fin heat exchanger according to this utility model;

[0019] Figure 3 This is a cross-sectional view of the sealing strip structure for a plate-fin heat exchanger according to the present invention;

[0020] Figure 4 This is a schematic diagram of the second heat insulation sealing gasket of the sealing strip structure for a plate-fin heat exchanger according to the present invention.

[0021] In the diagram: 100 Seal body, 110 Slot, 200 Fixing bracket, 210 Screw hole, 220 Screw, 230 Knob, 240 Pressure plate, 250 Positioning rod, 260 Insertion hole, 270 Partition plate, 280 Positioning hole, 300 First heat insulation sealing gasket, 310 Second heat insulation sealing gasket. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides a sealing strip structure for a plate-fin heat exchanger. Please refer to [link / reference]. Figures 1-4 The device includes a seal body 100 and a fixing bracket 200. A slot 110 is provided at the bottom of the seal body 100. Two fixing brackets 200 are symmetrically mounted on the front and rear side walls of the seal body 100. Each fixing bracket 200 has a screw hole 210, with a screw 220 threaded into the screw hole 210. A knob 230 is fixedly connected to one end of the screw 220, and a pressure plate 240 is rotatably connected to the other end of the screw 220. The pressure plate 240 is slidably connected to the inner wall of the fixing bracket 200. A positioning rod 250 is fixedly installed on the side wall of the pressure plate 240. The front and rear side walls of the seal body 100 have insertion holes 260 corresponding to the positioning rod 250. The positioning rod 250 is slidably connected to the inner wall of the insertion hole 260. Next, a partition 270 is embedded in the slot 110. The side wall of the partition 270 has a positioning hole 280 corresponding to the positioning rod 250. Specifically, the slot 110 facilitates the precise installation of the partition 270, thereby facilitating the assembly of the seal body 100 and the partition 270. The knob 230 facilitates the rotation of the screw 220, which in turn pushes the pressure plate 240 to drive the positioning rod 250 to insert into the corresponding positioning hole 280, so that the pressure plate 240 is pressed against the side wall of the seal body 100. The positioning rod 250 and the positioning hole 280 are connected to facilitate the positioning of the partition 270, thereby realizing the installation and fixation of the partition 270 and the seal body 100.

[0027] The side wall of the knob 230 is provided with anti-slip texture. Specifically, the anti-slip texture is used to increase the anti-slip properties of the knob 230 and make it easier to use.

[0028] The seal body 100 is symmetrically provided with baffles on the left and right sides. The baffles are fixedly connected to the left and right sides of the seal body 100. Specifically, the baffles limit the left and right ends of the seal body 100, so as to facilitate the connection and positioning of the partition 270 and the seal body 100, and align the insertion hole 260 with the positioning hole 280 for easy operation.

[0029] The positioning rod 250 is embedded in the positioning hole 280 through the insertion hole 260. The sealing strip body 100 and the partition plate 270 are connected and positioned through the positioning rod 250 and the positioning hole 280, which facilitates installation and fixation.

[0030] The side wall of the seal body 100 is provided with several heat dissipation holes, which are evenly distributed. Specifically, the heat dissipation holes help to increase the heat dissipation of the seal body 100 and improve its heat dissipation effect.

[0031] The seal body 100 is made of aluminum alloy, which increases corrosion resistance and extends the service life of the device.

[0032] Combination Figures 1-4 The sealing strip structure for a plate-fin heat exchanger according to this embodiment is used as follows: During the assembly of the sealing strip for the plate-fin heat exchanger, the partition plate 270 is inserted into the slot 110, thereby assembling the sealing strip body 100 with the partition plate 270. The screw 220 is rotated by the knob 230, thereby pushing the pressure plate 240 to drive the positioning rod 250 to be inserted into the corresponding positioning hole 280, so that the pressure plate 240 is pressed against the side wall of the sealing strip body 100. The positioning rod 250 is connected with the positioning hole 280 to facilitate the positioning of the partition plate 270, thereby realizing the installation and fixation of the partition plate 270 and the sealing strip body 100. The installation and removal of the sealing strip body 100 and the partition plate 270 by operating the knob 230 do not require welding, which is convenient for the later replacement of the sealing strip and facilitates operation.

[0033] Figures 3-4 The diagram shown is a structural schematic of a second embodiment of the sealing strip structure for a plate-fin heat exchanger according to this utility model. Please refer to [link / reference]. Figures 3-4Unlike the above-described embodiments, the bottom of the seal body 100 is provided with a first heat-insulating sealing gasket 300 and a second heat-insulating sealing gasket 310. The two first heat-insulating sealing gaskets 300 are symmetrically arranged, and the second heat-insulating sealing gasket 310 is disposed between the two first heat-insulating sealing gaskets 300. Specifically, the first heat-insulating sealing gasket 300 facilitates the increase of the connection and sealing between the inner side of the partition 270 and the seal body 100, thereby improving the sealing effect at the connection. At the same time, the first heat-insulating sealing gasket 300 and the second heat-insulating sealing gasket 310 facilitate the increase of the heat insulation effect of the seal body 100, reduce the heat transfer to the seal body 100, and protect the seal body 100 from damage in high-temperature environments.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sealing strip structure for a plate-fin heat exchanger, characterized in that: The device includes a seal body (100) and a fixing bracket (200). The bottom of the seal body (100) has a slot (110). Two fixing brackets (200) are symmetrically arranged on the front and rear side walls of the seal body (100). Each fixing bracket (200) has a screw hole (210) containing a screw rod (220). One end of the screw rod (220) has a knob (230), and the other end has a pressure plate (240). The pressure plate (240) is slidably connected to the inner wall of the fixing frame (200). The side wall of the pressure plate (240) is provided with a positioning rod (250). The front and rear side walls of the sealing strip body (100) are provided with insertion holes (260) corresponding to the positioning rod (250). The positioning rod (250) is slidably connected to the inner wall of the insertion hole (260). The slot (110) is provided with a partition (270). The side wall of the partition (270) is provided with a positioning hole (280) corresponding to the positioning rod (250).

2. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The bottom of the seal body (100) is provided with a first heat-insulating sealing gasket (300) and a second heat-insulating sealing gasket (310), the two first heat-insulating sealing gaskets (300) are symmetrically arranged, and the second heat-insulating sealing gasket (310) is disposed between the two first heat-insulating sealing gaskets (300).

3. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The side wall of the knob (230) is provided with anti-slip texture.

4. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The seal body (100) is provided with baffles on its left and right sides, and the baffles are fixedly connected to the left and right sides of the seal body (100).

5. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The positioning rod (250) is embedded in the positioning hole (280) through the insertion hole (260), and the sealing strip body (100) and the partition (270) are connected and positioned through the positioning rod (250) and the positioning hole (280).

6. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The side wall of the seal body (100) is provided with a number of heat dissipation holes, which are evenly distributed.

7. The sealing strip structure for a plate-fin heat exchanger according to claim 1, characterized in that: The seal body (100) is made of aluminum alloy.

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