Integral gasket for heat exchanger

Abstract

The utility model discloses an integral gasket for a heat exchanger, which relates to the technical field of gaskets and comprises a gasket body, the gasket body is a hollow cylinder, two side ring grooves are arranged on an outer ring of the gasket body, and the two side ring grooves are respectively distributed at the upper end and the lower end of the outer ring of the gasket body. An air bag ring is clamped in the side ring groove, and a concave part is arranged at the inner ring of the air bag ring. According to the integral gasket for the heat exchanger, by arranging the side ring groove, the air bag ring and other structures, when the outer diameter of the gasket body is larger than the inner diameter of the connecting groove, the gasket body is prevented from being damaged due to extrusion of a bolt and the inner wall of the connecting groove in the connecting groove, and the use efficiency of the gasket is guaranteed; meanwhile, when the outer diameter of the gasket body is smaller than the inner diameter of the connecting groove, the air bag ring extends out of the side ring groove after being extruded and abuts against the inner wall of the connecting groove, and therefore the sealing performance of the gasket is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gaskets, in particular to an integral gasket for a heat exchanger. Background Art

[0002] A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating process, they can be divided into three categories: partition type, hybrid type, and heat storage type; according to the compactness of their surface, they can be divided into compact type and non-compact type.

[0003] When using the rubber gasket in the heat exchanger, if the diameter of the rubber gasket is larger than the inner diameter of the connecting groove, it is easy to be squeezed and deformed by the fixing device and the inner wall of the connecting groove. Maintaining the deformed state for a long time will cause damage to the entire rubber gasket and reduce its service life; if the outer diameter of the rubber gasket is smaller than the inner diameter of the connecting groove, it is easy to cause insufficient connection, thereby reducing its sealing performance.

[0004] Therefore, it is necessary to propose an integral gasket for a heat exchanger to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an integral gasket for a heat exchanger to solve the problem that when a rubber gasket in a heat exchanger is in use, if the diameter of the rubber gasket is larger than the inner diameter of the connecting groove, it is easy to be squeezed and deformed by the fixing device and the inner wall of the connecting groove. Maintaining the deformed state for a long time will cause damage to the entire rubber gasket and reduce its service life; if the outer diameter of the rubber gasket is smaller than the inner diameter of the connecting groove, it is easy to cause insufficient connection, thereby reducing its sealing performance.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integral gasket for a heat exchanger, comprising a gasket body, which is a hollow cylinder, and a side ring groove is provided on the outer ring of the gasket body. There are two side ring grooves, and the two side ring grooves are respectively distributed at the upper and lower ends of the outer ring of the gasket body. An airbag ring is clamped inside the side ring groove, and the inner ring of the airbag ring is set as a recessed portion. The upper and lower surfaces of the gasket body are both provided with surface ring grooves, and a ring sheet is fixedly connected to the inside of the surface ring groove.

[0007] Preferably, bumps are fixedly connected to the outer ring of the airbag ring, and the bumps are distributed along the height direction of the airbag ring.

[0008] Preferably, the protrusions are provided in plurality, and the plurality of protrusions are distributed in a circular array around the outer ring of the airbag ring.

[0009] Preferably, a through groove is provided on the gasket body, and the through groove passes through the upper and lower surfaces of the gasket body.

[0010] Preferably, the through groove is diamond-shaped.

[0011] Preferably, a separator is integrally formed in the middle section of the through groove, and the separator includes a first bending portion and a second bending portion, and the first bending portion and the second bending portion are distributed in a V shape.

[0012] Preferably, the through grooves are provided in plurality, and the plurality of through grooves are evenly distributed around the axis of the gasket body.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model provides structures such as the side ring groove and the airbag ring. When the outer diameter of the gasket body is larger than the inner diameter of the connecting groove, the gasket body is prevented from being damaged by the bolts and the inner wall of the connecting groove in the connecting groove, thereby ensuring the use efficiency of the gasket. At the same time, when the outer diameter of the gasket body is smaller than the inner diameter of the connecting groove, the airbag ring is squeezed and extends from the inside of the side ring groove and abuts against the inner wall of the connecting groove, thereby ensuring the sealing performance of the gasket.

[0015] 2. The through groove can be set in a diamond shape, which can provide a certain shrinkage space for the gasket body while ensuring the stability of the overall structure of the gasket;

[0016] 3. Setting the ring piece can improve the reaction speed of the airbag ring and make the gasket less likely to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an integral gasket for a heat exchanger according to the present invention from one perspective.

[0018] Figure 2 This is a structural schematic diagram of the integral gasket used for a heat exchanger according to the utility model from another perspective.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the integral gasket used for a heat exchanger of the utility model.

[0020] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0021] In the figure: 1. Gasket body; 2. Side ring groove; 3. Airbag ring; 4. Recessed portion; 5. Protrusion; 6. Surface ring groove; 7. Ring piece; 8. Through groove; 9. Separator; 10. First bending portion; 11. Second bending portion. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clear that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figures 1 to 4 The illustrated embodiment of a one-piece gasket for a heat exchanger comprises a gasket body 1, which is a hollow cylinder to facilitate the passage of bolts. Two side ring grooves 2 are defined on the outer ring of the gasket body 1, one at the top and one at the bottom of the outer ring. An airbag ring 3 is secured within the inner ring of the side ring 2, and a recess 4 is provided within the inner ring of the airbag ring 3.

[0024] A through slot 8 is provided on the gasket body 1 and passes through the upper and lower surfaces of the gasket body 1 . There are multiple through slots 8 , which are evenly distributed around the axis of the gasket body 1 . A separator 9 is integrally formed in the middle section of the through slot 8 .

[0025] Specifically, the bolt passes through the inner ring of the gasket body 1, and then the gasket body 1 is placed in its entirety in the connecting groove, with the outer ring of the gasket body 1 abutting against the inner wall of the connecting groove.

[0026] When the outer diameter of the gasket body 1 is larger than the inner diameter of the connecting groove, the gasket body 1 will be squeezed, and the through groove 8 can provide a certain shrinkage space for the gasket body 1; at the same time, the airbag ring 3 will also be squeezed, and the gas will be squeezed into the recessed portion 4, causing the recessed portion 4 to expand and fit onto the inner wall of the side ring groove 2, thereby preventing the gasket body 1 from being damaged by the bolts and the inner wall of the connecting groove in the connecting groove, thereby ensuring the efficiency of the gasket.

[0027] Furthermore, the separator 9 can be adaptively deformed and separate the through groove 8 without affecting the sealing performance of the gasket body 1 .

[0028] When the outer diameter of the gasket body 1 is smaller than the inner diameter of the connecting groove, the bolt can be rotated a few more turns to squeeze the gasket body 1 through the bolt, thereby squeezing the airbag ring 3. After being squeezed, the airbag ring 3 extends from the inside of the side ring groove 2 and abuts against the inner wall of the connecting groove, thereby ensuring the sealing performance of the gasket.

[0029] At the same time, two upper and lower airbag rings 3 are provided on the outer ring of the gasket body 1, which further improves the sealing performance of the gasket.

[0030] By providing structures such as the side ring groove 2 and the airbag ring 3, when the outer diameter of the gasket body 1 is larger than the inner diameter of the connecting groove, the gasket body 1 is prevented from being damaged by the extrusion of the bolts and the inner wall of the connecting groove in the connecting groove, thereby ensuring the use efficiency of the gasket; at the same time, when the outer diameter of the gasket body 1 is smaller than the inner diameter of the connecting groove, the airbag ring 3 is squeezed and extends out from the inside of the side ring groove 2, and abuts against the inner wall of the connecting groove, thereby ensuring the sealing performance of the gasket.

[0031] During the manufacturing process, after the gasket body 1 is formed, the airbag ring 3 is clamped into the inside of the side ring groove 2 .

[0032] The through groove 8 can be set to a diamond shape, which can ensure that a certain shrinkage space is provided for the gasket body 1 while ensuring the stability of the overall structure of the gasket.

[0033] The separator 9 includes a first bending portion 10 and a second bending portion 11 , and the first bending portion 10 and the second bending portion 11 are distributed in a V shape.

[0034] When the gasket body 1 is squeezed, the through groove 8 can provide a certain shrinkage space for the gasket body 1 , and at this time, the first bent portion 10 and the second bent portion 11 are close to each other and fit together.

[0035] To enhance friction between the airbag ring 3 and the inner wall of the connecting groove and improve the stability of the gasket during use, bumps 5 are fixedly connected to the outer ring of the airbag ring 3 and are distributed along the height direction of the airbag ring 3. There are multiple bumps 5, and the multiple bumps 5 are distributed in a circular array around the outer ring of the airbag ring 3.

[0036] The upper and lower surfaces of the gasket body 1 are both provided with a face ring groove 6, and the inside of the face ring groove 6 is fixedly connected with a ring piece 7. The ring pieces 7 are provided on the upper and lower surfaces of the gasket body 1 to form a whole with the gasket body 1. When the bolts are tightened, the airbag ring 3 can be squeezed through the ring piece 7, thereby increasing the reaction speed of the airbag ring 3 and making the gasket less likely to deform.

Claims

1. An integral gasket for a heat exchanger, comprising a gasket body (1), characterized in that: The gasket body (1) is a hollow cylinder. A side ring groove (2) is provided on the outer ring of the gasket body (1). The side ring grooves (2) are provided in two numbers, and the two side ring grooves (2) are respectively distributed at the upper and lower ends of the outer ring of the gasket body (1). An airbag ring (3) is clamped inside the side ring groove (2). The inner ring of the airbag ring (3) is provided with a recessed portion (4). A through groove (8) is provided on the gasket body (1), and the through groove (8) passes through the upper and lower surfaces of the gasket body (1). A separator (9) is integrally formed in the middle section of the through groove (8).

2. The integral gasket for a heat exchanger according to claim 1, characterized in that: The outer ring of the airbag ring (3) is fixedly connected with a bulge (5), and the bulge (5) is distributed along the height direction of the airbag ring (3).

3. The integral gasket for a heat exchanger according to claim 2, characterized in that: The protrusions (5) are arranged in a plurality, and the plurality of protrusions (5) are distributed in a circular array around the outer ring of the airbag ring (3).

4. The integral gasket for a heat exchanger according to claim 1, characterized in that: The upper and lower surfaces of the gasket body (1) are both provided with surface annular grooves (6), and a ring piece (7) is fixedly connected inside the surface annular groove (6).

5. The integral gasket for a heat exchanger according to claim 1, characterized in that: The through groove (8) is in a diamond shape.

6. The integral gasket for a heat exchanger according to claim 5, characterized in that: The separator (9) comprises a first bending portion (10) and a second bending portion (11), and the first bending portion (10) and the second bending portion (11) are distributed in a V-shape.

7. The integral gasket for a heat exchanger according to claim 6, characterized in that: The through slots (8) are provided in plurality, and the plurality of through slots (8) are evenly distributed around the axis of the gasket body (1).

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