A compression seal

Abstract

The utility model discloses a kind of compression-resistant seals, it is related to plate-fin heat exchanger technical field, including side plate, first bending plate, second bending plate, spring ring piece, first bending spring piece and second bending spring piece;First bending plate and second bending plate are respectively arranged on the upper and lower sides of the side of side plate;The elastic two ends of the spring ring piece of C-shaped structure are connected to first bending spring piece and second bending spring piece respectively;When first bending spring piece and second bending spring piece are respectively clamped in first bending plate and second bending plate, spring ring piece is subjected to elastic compression force, so that first bending spring piece and second bending spring piece are respectively tightly pressed first bending plate and second bending plate.The compression-resistant seal provided in the utility model is provided with clamping groove on the upper and lower sides in side plate, and the two ends of spring piece are clamped in groove, which can provide supporting force for side plate and also provide shock-absorbing effect.

Description

Technical Field

[0001] This utility model relates to the field of plate-fin heat exchanger technology, and in particular to a pressure-resistant sealing strip. Background Technology

[0002] The plate-fin heat exchanger includes baffles, fins, and seals. The baffles are stacked in multiple layers, the fins are positioned between the upper and lower baffles, and the seals are positioned on both sides of the fins, with the upper and lower ends of the seals perpendicular to the upper and lower baffles, respectively. The seals are fixedly connected to the baffles by brazing, forming a sealed flow channel with openings on both sides between the upper and lower baffles.

[0003] Chinese utility model patent application number 201520470608.0 discloses a special sealing strip for aluminum plate-fin heat exchangers. This patent designs the side of the sealing strip along its length as a concave structure, forming reinforcing ribs to improve overall strength. In actual use, the top and bottom surfaces of the sealing strip are pressed together by upper and lower partitions, requiring it to withstand pressure in the vertical direction. However, the reinforcing ribs are arranged along the length direction, which only improves the sealing strip's bending resistance, not its compressive strength. Furthermore, the solid structure of the sealing strip results in poor shock absorption. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pressure-resistant sealing strip, which has slots on the upper and lower sides of the side plate. The two ends of the spring piece are embedded in the slots, which not only provide support for the side plate, but also provide shock absorption.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a pressure-resistant seal, which includes a seal body and an elastic structure. The upper and lower ends of the seal body facing the flow channel of the plate-fin heat exchanger are respectively provided with a first slot and a second slot. The elastic structure has two elastic ends. When the elastic structure is compressed, the two elastic ends of the elastic structure move closer to each other. When the elastic structure releases its elastic potential energy, the two elastic ends of the elastic structure move further apart. The two elastic ends of the elastic structure are respectively embedded in the first slot and the second slot.

[0006] Furthermore, the seal body includes a side plate, a first bent plate, and a second bent plate; the elastic structure includes a spring ring, a first bent spring, and a second bent spring; the side plate is installed on both sides of the flow channel of the plate-fin heat exchanger; the side of the side plate facing the flow channel is the first surface; both the first bent plate and the second bent plate have mutually bent ends; the top of the first bent plate is flush with the top of the side plate; the first end of the first bent plate is horizontally connected to the upper end of the first surface; the second end of the first bent plate is bent downwards to form a first groove with the first surface; the bottom of the second bent plate is flush with the bottom of the side plate; the first end of the second bent plate is horizontally connected to the lower end of the first surface; the second end of the second bent plate is bent upwards. The spring is bent to form a second groove with the first surface; both the first and second bent springs have mutually bent ends; the spring ring has a C-shaped structure in the flow direction of the channel and has elastic ends; the first end of the spring ring is connected to the first side end of the first bent spring; the second side end of the first bent spring bends upward and extends into the first groove, and contacts the bottom of the first bent plate; the second end of the spring ring is connected to the first side end of the second bent spring; the second side end of the second bent spring bends downward and extends into the second groove, and contacts the top of the second bent plate; when the first and second bent springs extend into the first and second grooves respectively, the spring ring is subjected to elastic compression force.

[0007] Furthermore, the second slot has wedge-shaped blocks at both ends in the flow direction; in the projection of the flow direction, the wedge-shaped blocks overlap with the second side end of the second bent spring.

[0008] The above technical solution has the following advantages or beneficial effects: This utility model provides a pressure-resistant sealing strip, relating to the field of plate-fin heat exchanger technology, including a side plate, a first bent plate, a second bent plate, a spring ring, a first bent spring sheet, and a second bent spring sheet; the side plate is installed on both sides of the flow channel of the plate-fin heat exchanger; the side of the side plate facing the flow channel is the first surface; both the first and second bent plates have mutually bent ends; the top of the first bent plate is flush with the top of the side plate; the first side end of the first bent plate is horizontally connected to the upper end of the first surface; the second side end of the first bent plate is bent downwards, forming a first groove with the first surface; the bottom of the second bent plate is flush with the bottom of the side plate; the first side end of the second bent plate is horizontally connected to the first surface. The lower end of the first bending plate is bent upwards at its second side, forming a second groove with the first surface. Both the first and second bending springs have mutually bent ends. The spring ring has a C-shaped structure in the flow direction of the channel and has elastic ends. The first end of the spring ring is connected to the first side of the first bending spring. The second side of the first bending spring bends upwards and extends into the first groove, contacting the bottom of the first bending plate. The second end of the spring ring is connected to the first side of the second bending spring. The second side of the second bending spring bends downwards and extends into the second groove, contacting the top of the second bending plate. When the first and second bending springs extend into the first and second grooves respectively, the spring ring is subjected to elastic compression force. This utility model provides a pressure-resistant sealing strip with grooves on the upper and lower sides of the side plate. The springs are embedded in the grooves at both ends, providing support to the side plate while also providing shock absorption. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0010] Figure 1 A three-dimensional structural diagram of a pressure-resistant seal provided in Embodiment 1 of this utility model; Figure 2 This is a side view of the anti-pressure seal in the flow direction provided in Embodiment 1 of the present invention; Figure 1-2 Includes: 1. Side plate; 11. First bending plate; 12. Second bending plate; 2. Spring ring; 21. First bending spring; 22. Second bending spring; 3. Wedge block. Detailed Implementation

[0011] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0012] Example 1: like Figure 1-2 As shown: This utility model provides a pressure-resistant sealing strip, including a side plate 1, a first bent plate 11, a second bent plate 12, a spring ring 2, a first bent spring 21, and a second bent spring 22. The side plate 1 is installed on both sides of the flow channel of a plate-fin heat exchanger. The side of the side plate 1 facing the flow channel is the first surface. The first bent plate 11 and the second bent plate 12 both have mutually bent ends. The top of the first bent plate 11 is flush with the top of the side plate 1. The first side end of the first bent plate 11 is horizontally connected to the upper end of the first surface. The second side end of the first bent plate 11 is bent downward to form a first groove with the first surface. The bottom of the second bent plate 12 is flush with the bottom of the side plate 1. The first side end of the second bent plate 12 is horizontally connected to the lower end of the first surface. The second side end of the second bent plate 12 is bent downward to form a first groove with the first surface. The first bending spring 21 and the second bending spring 22 are bent upwards to form a second groove with the first surface; both the first bending spring 21 and the second bending spring 22 have mutually bent ends; the spring ring 2 has a C-shaped structure in the flow direction of the flow channel and has elastic ends; the first end of the spring ring 2 is connected to the first side end of the first bending spring 21; the second side end of the first bending spring 21 is bent upwards and extends into the first groove, and contacts the bottom of the first bending plate 11; the second end of the spring ring 2 is connected to the first side end of the second bending spring 22; the second side end of the second bending spring 22 is bent downwards and extends into the second groove, and contacts the top of the second bending plate 12; when the first bending spring 21 and the second bending spring 22 are respectively inserted into the first groove and the second groove, the spring ring 2 is subjected to elastic compression force.

[0013] First, it should be noted that the pressure-resistant sealing strip provided by this utility model has spring rings 2 set inside the flow channel, so the fins cannot cover the entire flow channel. During installation, side plates 1 are set on both sides of the flow channel, and the horizontal sides of the fins can directly contact the spring rings 2. The size of the fins is designed so that they can be placed between the spring rings 2 on both sides, and the fins are stabilized in this way.

[0014] In practical use, the pressure-resistant seal provided by this utility model is integrally formed with the side plate 1, the first bent plate 11, and the second bent plate 12, and the spring ring 2, the first bent spring piece 21, and the second bent spring piece 22. That is, the upper surface of the side plate 1 is on the same plane as the upper surface of the first bent plate 11, and the lower surface of the side plate 1 is on the same plane as the upper and lower surfaces of the second bent plate 12. Both ends of the first slot formed by bending the first bent plate 11 and the second slot formed by bending the second bent plate 12 are open, allowing the first bent spring piece 21 and the second bent spring piece 22 to be inserted into the first and second slots respectively from the flow direction. It should be noted that, in order to ensure that the spring ring 2 can provide support for the first bent plate 11 and the second bent plate 12, the first bent spring piece 21 and the second bent spring piece 22 need to be brought close together before insertion to compress the spring ring 2. With the spring ring 2 compressed, the first bent spring piece 21, after insertion, can abut against the bottom of the first slot, and the second bent spring piece 22, after insertion, can abut against the bottom of the second slot. This allows the first bent plate 11 and the second bent plate 12 to continuously receive the elastic force from the spring ring 2, thereby improving the compressive strength of the upper and lower partitions of the side plate 1. On the other hand, when the first bent plate 11 and the second bent plate 12 are subjected to vibration, the spring ring 2 can also provide shock absorption and buffering.

[0015] As described above, the first bent spring 21 and the second bent spring 22 are inserted laterally into the first and second slots. Since the first and second slots are through-slot structures, the bent springs may detach from their respective slots under continuous vibration. To prevent the bent springs from detaching from their slots due to vibration, in one possible embodiment, wedge blocks 3 are provided at both ends of the second slot in the flow direction; in the projection of the flow direction, the wedge blocks 3 overlap with the second side ends of the second bent spring 22. The overall height of the first bent spring 21 and the second bent spring 22 is smaller when they are in a compressed state, allowing them to enter the corresponding slots and also pass through the wedge blocks 3. When the first bent spring 21 and the second bent spring 22 release the compressive force and unfold, if they detach from the through-slot structure, they will be limited by the wedge blocks 3.

[0016] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application filed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

[0017] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A pressure-resistant seal, characterized in that, The device includes a sealing strip body and an elastic structure. The sealing strip body has a first slot and a second slot at its upper and lower ends facing the flow channel side of the plate-fin heat exchanger, respectively. The elastic structure has two elastic ends. When the elastic structure is compressed, the two elastic ends of the elastic structure move closer to each other. When the elastic structure releases its elastic potential energy, the two elastic ends of the elastic structure move further apart. The two elastic ends of the elastic structure are respectively engaged in the first slot and the second slot.

2. The pressure-resistant sealing strip according to claim 1, characterized in that, The sealing strip body includes a side plate, a first bent plate, and a second bent plate; the elastic structure includes a spring ring, a first bent spring, and a second bent spring; the side plate is installed on both sides of the flow channel of the plate-fin heat exchanger; the side of the side plate facing the flow channel is the first surface; Both the first bent plate and the second bent plate have two sides that are bent against each other; The top of the first bent plate is flush with the top of the side plate; The first side end of the first bent plate is horizontally connected to the upper end of the first surface; The second side end of the first bent plate is bent downward to form a first groove with the first surface; The bottom of the second bent plate is flush with the bottom of the side plate; The first side end of the second bent plate is horizontally connected to the lower end of the first surface; The second side end of the second bent plate is bent upward to form a second groove with the first surface; Both the first and second bent springs have two ends that are bent towards each other; The spring ring has a C-shaped structure in the flow direction of the flow channel and has elastic ends; The first end of the spring ring is connected to the first side end of the first bent spring sheet; The second side end of the first bending spring is bent upward and inserted into the first slot, and contacts the bottom of the first bending plate; The second end of the spring ring is connected to the first side end of the second bent spring sheet; The second side end of the second bending spring is bent downward and inserted into the second slot, and contacts the top of the second bending plate; The second side end of the first bent elastic piece and the second side end of the second bent elastic piece respectively correspond to the elastic ends of the elastic structure; When the first bending spring and the second bending spring are respectively inserted into the first slot and the second slot, the spring ring is subjected to elastic compression force.

3. The pressure-resistant sealing strip according to claim 2, characterized in that, The second slot has wedge-shaped blocks at both ends in the flow direction; in the projection of the flow direction, the wedge-shaped blocks overlap with the second side end of the second bent spring.

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