Plate heat exchanger applied to wall-hanging stove

Abstract

According to the plate heat exchanger, a rubber gasket is provided with a frame strip, a first hole filler strip and a second hole filler strip are arranged at the corners of the frame strip, the two ends of the filler strip are connected with the first hole filler strip and the second hole filler strip respectively, a plurality of positioning parts are arranged on the outer edge of the periphery of the frame strip, and retaining rings are arranged on the edges of the first hole filler strip and the second hole filler strip. The positioning parts are arranged on the outer edges of the peripheries of the frame strips, the rubber nails on the bottom faces of the positioning parts are matched with the positioning holes in the edges of the plate pieces, and therefore the frame strips can be conveniently spread to fall into the sealing grooves in the edges of the plate pieces; and it is ensured that the first hole filler strip and the second hole filler strip are locally attached to the plate, the situation of local upwarp is avoided, and therefore the flatness of attachment of the rubber gasket and the plate is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchanger components, specifically, it relates to a plate heat exchanger used in wall-hung boilers. Background Technology

[0002] In plate heat exchangers, rubber gaskets are installed on the plates, and the plates are bonded together to allow liquid to pass through. If the rubber gaskets are not accurately positioned or properly aligned on the plates, uneven stress will occur at the points where the plates are not properly positioned or aligned when they are bonded together, leading to liquid leakage between the plates. To ensure that the rubber gaskets can be bonded flatly with the plates during heat exchanger assembly, a plate heat exchanger for wall-hung boilers has been developed. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a plate heat exchanger for wall-hung boilers, which solves the problem that the rubber gasket and plate are not easy to position during assembly and are prone to uneven bonding.

[0004] To solve the above-mentioned technical problems, this utility model discloses a plate heat exchanger for wall-hung boilers, including: a front end plate and a rear end plate; heat exchange plates arranged alternately between the front end plate and the rear end plate; and rubber gaskets disposed on the heat exchange plates; the rubber gaskets have a frame strip, and perforated gasket strip one and perforated gasket strip two are provided at the corners of the frame strip. Perforated gasket strip one is disposed at two adjacent corners of the frame strip, and perforated gasket strip one and the adjacent side of the corner form an arc shape. Perforated gasket strip two is disposed around the periphery of perforated gasket strip one, one end of perforated gasket strip two is connected to one adjacent side of the corner, and the other end of perforated gasket strip two is connected to the other adjacent side of the corner. The two ends of the gasket strip are respectively connected to perforated gasket strip one and perforated gasket strip two. Multiple positioning parts are provided on the outer edge of the frame strip, and buckles are provided on the edges of perforated gasket strip one and perforated gasket strip two.

[0005] Furthermore, a buckle is provided at the joint between the aforementioned hole pad and the pad.

[0006] Furthermore, the hole in the aforementioned buckle is an elongated hole shape.

[0007] Furthermore, the aforementioned perforated pad two is provided with a buckle at one edge of the perforated pad one.

[0008] Furthermore, the bottom surface of the aforementioned positioning part is provided with rubber nails.

[0009] Compared with the prior art, this application can achieve the following technical effects:

[0010] This utility model has positioning parts set around the outer edges of the frame strip. The rubber nails on the bottom surface of the positioning parts cooperate with the positioning holes on the edge of the plate, so that the frame strip can be laid out and fall into the groove on the edge of the plate. The edges of the hole pad strip one and hole pad strip two are provided with buckles. The buckles cooperate with the protrusions on the plate to ensure that the hole pad strip one and hole pad strip two are partially attached to the plate, avoiding local lifting, thereby ensuring the flatness of the rubber pad and the plate.

[0011] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a schematic diagram of a rubber gasket according to one embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of a heat exchange plate according to one embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the rubber gasket and plate fitting together according to one embodiment of the present invention.

[0016] Attached Figure Labels

[0017] Heat exchange plate 1, rubber gasket 2, heat exchange zone 3, sealing groove 4, raised strip 5, guide groove 6, groove 7, positioning protrusion 8, positioning groove 9, positioning hole 10, frame strip 20, hole gasket 1 21, hole gasket 2 22, gasket 23, positioning part 24, buckle 25, rubber nail 26, warm water inlet hole 30, warm water outlet hole 31, cold water inlet hole 32, cold water outlet hole 33. Detailed Implementation

[0018] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of a rubber gasket according to one embodiment of the present invention; Figure 2 This is a schematic diagram of a heat exchange plate according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the rubber gasket and plate fitting together according to one embodiment of the present invention.

[0020] A plate heat exchanger for a wall-hung boiler includes: a front plate and a rear plate; heat exchange plates 1 arranged alternately between the front plate and the rear plate; and rubber gaskets 2 disposed on the heat exchange plates 1. The heat exchange plates 1 are provided with a heat exchange zone 3 and a sealing groove 4. The heat exchange zone 3 is provided with multiple protrusions 5 and guide grooves 6 distributed at intervals. With the center line of the heat exchange zone 3 as a reference, the protrusions 5 and guide grooves 6 on the left and right sides are obliquely symmetrically distributed. The protrusions 5 are provided with multiple grooves 7 distributed at intervals. The bottom surface of the grooves 7 is inclined, and the bottom surfaces of two adjacent grooves 7 are inclined in opposite directions. The heat exchange zone 3 is provided with positioning protrusions 8 on both sides. The heat exchange plates 1 are provided with positioning grooves 9 around their perimeter. The positioning grooves 9 are provided with positioning holes 10.

[0021] The bottom surface of the guide channel 6 is inclined to one side of the guide channel; three positioning grooves 9 are provided on each of the length edges of the heat exchange plate 1, and two positioning grooves 9 are provided on each of the width edges.

[0022] The rubber gasket 2 has a frame strip 20. At the corners of the frame strip 20, there are perforated gasket strip 1 21 and perforated gasket strip 22. Perforated gasket strip 1 21 is located at two adjacent corners of the frame strip 20, and perforated gasket strip 1 21 and the adjacent side of the corner form an arc. Perforated gasket strip 22 is located around the periphery of perforated gasket strip 1 21. One end of perforated gasket strip 22 is connected to one adjacent side of the corner, and the other end of perforated gasket strip 22 is connected to the other adjacent side of the corner. The two ends of the gasket strip 23 are respectively connected to perforated gasket strip 1 21 and perforated gasket strip 22. Multiple positioning parts 24 are provided around the outer edge of the frame strip 20. Buckles 25 are provided on the edges of perforated gasket strip 1 21 and perforated gasket strip 22.

[0023] A buckle 25 is provided at the junction of the hole pad 21 and the pad 23; the hole in the buckle 25 is in the shape of an elongated hole; a buckle 25 is provided on one side edge of the hole pad 22 relative to the hole pad 21; a rubber nail 26 is provided on the bottom surface of the positioning part 24.

[0024] The heat exchange plate 1 and the rubber gasket 2 are fitted together. The heat exchange plate 1 has a warm water inlet hole 30, a warm water outlet hole 31, a cold water inlet hole 32 and a cold water outlet hole 33. The sealing groove 4 surrounds the edges of the warm water inlet hole 30 and the warm water outlet hole 31. The sealing groove 4 surrounds the heat exchange zone 3 together with the cold water inlet hole 32 and the cold water outlet hole 33. The shape of the rubber gasket 2 matches the shape of the sealing groove 4. The rubber gasket 2 is laid in the sealing groove 4. The buckle 25 of the rubber gasket 2 is sleeved on the positioning protrusion 8. The positioning part 24 of the rubber gasket 2 is fitted with the positioning groove 9. The rubber nail 26 is inserted into the positioning hole 10.

[0025] This utility model provides positioning parts 24 around the outer edges of the frame strip 20. The rubber nails 26 on the bottom surface of the positioning parts 24 cooperate with the positioning holes 10 on the edge of the plate, so that the frame strip 20 can be laid out and fall into the sealing groove 4 on the edge of the plate. The edges of the hole pad 21 and the hole pad 22 are provided with buckles 25. The buckles 25 cooperate with the protrusions 8 on the plate to ensure that the hole pad 21 and the hole pad 22 are partially attached to the plate, avoiding local lifting, thereby ensuring the flatness of the rubber gasket 2 and the heat exchange plate 1.

[0026] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A plate heat exchanger for use in wall-hung boilers, comprising: Front-end board and back-end board; Heat exchange plates are arranged alternately between the front end plate and the rear end plate; and rubber gaskets are arranged on the heat exchange plates; The rubber pad is characterized in that it has a frame strip, and a perforated pad 1 and a perforated pad 2 are provided at the corners of the frame strip. The perforated pad 1 is provided at two adjacent corners of the frame strip, and the perforated pad 1 and the adjacent side of the corner form an arc. The perforated pad 2 is provided on the periphery of the perforated pad 1. One end of the perforated pad 2 is connected to one adjacent side of the corner, and the other end of the perforated pad 2 is connected to the other adjacent side of the corner. The two ends of the pad are respectively connected to the perforated pad 1 and the perforated pad 2. Multiple positioning parts are provided on the outer edge of the frame strip, and buckles are provided on the edges of the perforated pad 1 and the perforated pad 2.

2. The plate heat exchanger for a wall-hung boiler as described in claim 1, characterized in that, A buckle is provided at the joint between the hole pad and the pad.

3. The plate heat exchanger for a wall-hung boiler as described in claim 2, characterized in that, The hole in the buckle is elongated.

4. The plate heat exchanger for a wall-hung boiler as described in claim 3, characterized in that, The second perforated pad has a buckle at one edge opposite to the first perforated pad.

5. The plate heat exchanger for a wall-hung boiler as described in claim 4, characterized in that, The bottom surface of the positioning part is provided with a rubber nail.

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