Plate-fin heat exchanger seal strip with liquid drainage function

Abstract

The utility model relates to plate-fin heat exchanger technical field, a plate-fin heat exchanger sealing strip with drainage function, include: the plugging strip, the plugging strip is annular and is set up, is adhered to the fin surface through the glue solution, the drainage groove is set up in the both sides of plugging strip, the drainage edge hair, the quantity of drainage edge hair is several, and equidistance is arranged on the surface of plugging strip, the utility model discloses under the action of plugging strip, can seal the fin of heat exchanger, if the outer surface of plugging strip generates condensate, can be under the action of drainage groove, through the gravity to the condensate is guided to avoid the condensate stagnation on the outer surface of plugging strip, and under the action of drainage edge hair, can further to the condensate dewdrop be broken wall, accelerate the flow of condensate dewdrop, thereby avoid the heat exchange efficiency decline and equipment corrosion problem caused by the stagnation of effusion.

Description

Technical Field

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

[0002] Plate-fin heat exchangers, with their compact structure and high heat exchange efficiency per unit volume, are widely used in chemical, refrigeration, aerospace, and energy fields. As a core sealing component, the seal directly determines the media isolation effect and the operational safety of the equipment. For example, a heat exchanger seal disclosed in publication number CN223512595U can seal the media on the fins during use.

[0003] When a plate-fin heat exchanger is in operation, the medium inside the seal can flow according to the designated flow channel due to the sealing of the seal. However, in the idle area outside the seal where no medium flows, condensate generated by the gas-liquid temperature difference is prone to stagnate on the surface of the seal. Currently, some seals cannot guide the stagnant condensate, which not only occupies the effective heat exchange area but also aggravates the electrochemical corrosion of the fins and seals, shortening the service life of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a plate-fin heat exchanger seal with a drainage function, which, combined with a drainage groove and a drainage-aid edge roughening structure, enables efficient discharge of condensate and extends the service life of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plate-fin heat exchanger sealing strip with drainage function, comprising: A sealing strip, wherein the sealing strip is arranged in a ring and is adhered to the surface of the fin by adhesive; A drainage channel is provided on both sides of the sealing strip; The auxiliary edge removal tool consists of several pieces, which are arranged at equal intervals on the surface of the sealing strip.

[0006] Preferably, the drainage groove is formed on the outer surface of the top and bottom of the sealing strip, and the drainage groove extends to both sides of the sealing strip, spanning the arc surface around the sealing strip.

[0007] Preferably, the surface of the drainage channel is coated with a fluorosilicone coating.

[0008] Preferably, the edge trimming aid is inclined, and the inclination direction is horizontal and downward.

[0009] Preferably, the upper half of the edge-removing aid has an edge, and the edge faces upward.

[0010] Preferably, the spacing between adjacent edge-diffusing aids is set to 5-8 mm to form a dense guide array.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this invention can seal the heat exchanger fins with the action of the sealing strip. If condensation forms on the outer surface of the sealing strip in the unused area of ​​the fins, the condensation can be guided by gravity under the action of the drainage groove, thereby preventing the condensation from stagnating on the outer surface of the sealing strip. Furthermore, with the action of the drainage edge bristles, the condensation droplets can be further broken up, accelerating the flow of the condensation droplets, thereby avoiding the heat exchange efficiency reduction and equipment corrosion caused by liquid accumulation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view schematic diagram of the structure in this utility model; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This utility model Figure 1 A magnified schematic diagram of the partial three-dimensional structure at point A in the middle; Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0013] In the diagram: 100, sealing strip; 110, drainage channel; 3, edge roughness removal aid. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Please see Figure 1-5 As shown, a plate-fin heat exchanger sealing strip with drainage function includes a sealing strip 100. The sealing strip 100 is arranged in a ring and is adhered to the surface of the fins by adhesive. The sealing strip 100 is used for drainage and to support the structural strength between adjacent partitions.

[0016] Drainage groove 110 is formed on the surface of the sealing strip 100.

[0017] Several auxiliary drainage burrs 3 are set on the surface of the sealing strip 100.

[0018] Drainage grooves 110 are formed on the outer surfaces of the top and bottom of the sealing strip 100, and the opening of drainage grooves 110 extends to both sides of the sealing strip 100, spanning the arc surface around the sealing strip 100. This position is designed to cover the main areas where condensate collects, avoiding dead corners where liquid accumulates.

[0019] like Figure 5 As shown, the highest point of the drainage trough 110 is located at the central axis of the sealing strip 100, and both sides are sloped to guide the condensate water to discharge to both sides.

[0020] like Figure 3 As shown, the surface of the drain trough 110 is coated with a fluorosilicone coating to quickly drain condensate and reduce condensate retention.

[0021] like Figure 4 As shown, the auxiliary drainage edge bristles 3 are inclined, and the inclination direction is horizontal and downward. With this setting, when the condensate touches the surface of the auxiliary drainage edge bristles 3, the condensate can be easily drained under the action of the angle of the auxiliary drainage edge bristles 3.

[0022] For example Figure 4 As shown, the upper part of the edge-discharging 3 has sharp edges, and the sharp edges face upwards. With this setting, the condensate droplets can be broken up, thereby avoiding the adhesion of the condensate between the two fins due to the tension of the condensate, which would affect the flow.

[0023] The spacing between adjacent auxiliary drainage edge hairs 3 is set to 5-8mm to form a dense guide array, ensuring full coverage of condensate drainage.

[0024] Working principle: Plate-fin heat exchangers have multiple baffles, all of which are arranged in parallel. The two sides of the baffles are the cold medium channel and the hot medium channel, respectively, and the cold and hot media exchange heat at the baffles.

[0025] The sealing strip 100 is disposed on the opposite sides of the cold medium channel and the hot medium channel. If water droplets condense on the outer side of the sealing strip 100 due to temperature difference, the drainage groove 110 can rely on the gentle slope and gravity to guide the condensate to flow to both sides. Combined with the drainage aid bristles 3 spaced 5-8mm apart, their wedge-shaped edges can quickly break the tension balance of the water droplets, preventing water droplets from adhering to the fin gaps, accelerating the flow of droplets into the groove and efficient discharge. The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Although this utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the utility model's technical solution. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model without departing from the scope of the utility model's technical solution shall still fall within the scope of the utility model's technical solution.

Claims

1. A plate-fin heat exchanger seal with drainage function, characterized in that, include: The first sealing strip is a ring-shaped sealing strip that is adhered to the surface of the fin with adhesive. A drainage channel is provided on both sides of the sealing strip; The number of edge-removing aids is several, and they are arranged at equal intervals on the surface of the sealing strip.

2. The plate-fin heat exchanger seal with drainage function according to claim 1, characterized in that: The drainage grooves are formed on the outer surfaces of the top and bottom of the sealing strip, and the drainage grooves extend to both sides of the sealing strip, spanning the arc surface around the sealing strip.

3. A plate-fin heat exchanger seal with drainage function according to claim 1, characterized in that: The surface of the drainage channel is coated with a fluorosilicone coating.

4. A plate-fin heat exchanger seal with drainage function according to claim 1, characterized in that: The edge trimming aid is inclined, and the inclination direction is horizontal and downward.

5. A plate-fin heat exchanger seal with drainage function according to claim 1, characterized in that: The upper part of the edge-removing material has an edge, and the edge faces upward.

6. A plate-fin heat exchanger seal with drainage function according to claim 1, characterized in that: The spacing between adjacent edge guides is set to 5-8mm to form a dense guide array.

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