Quick replacement device for sealing gasket of plate heat exchanger

Abstract

The utility model discloses a quick replacement device for sealing gaskets of a plate heat exchanger, which belongs to the field of sealing elements of heat exchangers and is characterized in that one sealing gasket is provided with a quick release element, and the whole sealing gasket is detached through the quick release element; the quick release part comprises a sealing ring, the sealing ring is located in the middle section of one sealing gasket, a wrinkle part is arranged outside the sealing ring, a filling bin is formed in the sealing ring, a through hole is formed in the side wall of the wrinkle part, and an insertion rod is inserted into the through hole. The sealing ring and the fold part are integrally designed, the cross section is oval and S-shaped, the fold part can be folded to meet different sealing requirements, and the good sealing effect is achieved. The insertion rod and the through hole are matched, so that the sealing performance of the joint is ensured. The extrusion protruding part on the insertion rod applies pressure to the sealing gasket, so that the sealing gasket is bent and convenient to disassemble. And the I-shaped cross section and the arc-shaped edge of the convex part are extruded, so that the strength and the stability are enhanced, and the gasket damage is reduced. The sealing gasket can be quickly detached and replaced by extruding the inserting rod protruding part, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger sealing components, and in particular to a quick replacement device for plate heat exchanger gaskets. Background Technology

[0002] Plate heat exchangers are a new type of high-efficiency heat exchanger composed of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the plates, through which heat exchange occurs. It is an ideal device for liquid-liquid and liquid-vapor heat exchange, and features high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, convenient installation and cleaning, wide application, and long service life.

[0003] Gaskets, as sealing elements between heat exchanger plates, play a crucial role in sealing the heat exchanger medium and guiding its flow. They are a vital component of plate heat exchangers. Gaskets must not only seal the medium to prevent leakage to the external environment but also prevent the mixing of heat exchange media. If the gasket hardens and loses its elasticity, the heat exchanger may malfunction.

[0004] In actual disassembly and maintenance, plate heat exchanger gaskets have indeed demonstrated their ease of use due to the use of flow channel locating holes and leakage signal grooves. The design of these features allows operators to quickly locate and detect potential leaks, thereby improving maintenance efficiency. These design characteristics ensure that the gasket maintains its sealing performance during operation and that leaks are quickly detected. However, this increased structural complexity also presents challenges in disassembly. Because the gasket requires a high-precision fit with the plates of the plate heat exchanger to ensure a tight seal, special care must be taken during disassembly to avoid damaging the gasket or plates. Furthermore, the complex structure can lead to cumbersome disassembly procedures, increasing maintenance time and costs. Utility Model Content

[0005] The main objective of this invention is to provide a quick replacement device for gaskets in plate heat exchangers, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quick-replacement device for gaskets in a plate heat exchanger includes a first gasket, a first flow channel angle measuring hole area, a second gasket, a second flow channel angle measuring hole area, and a leakage signal groove. The second gasket is located on the side wall of the first gasket. The first flow channel angle measuring hole area is located between the first and second gaskets. The second flow channel angle measuring hole area is located on the side of the second gasket. The leakage signal groove is located between the second flow channel angle measuring hole area and the second gasket.

[0008] The sealing gasket is equipped with a quick-release mechanism, which allows the entire sealing gasket to be disassembled.

[0009] The quick-release component includes a sealing ring located in the middle of a sealing gasket. The outer side of the sealing ring has a pleated portion, and the interior of the sealing ring forms a filling chamber. The side wall of the pleated portion has a through hole, and a rod is inserted into the through hole. Both ends of the rod have extrusion protrusions, and an injection channel is provided on the rod. A sealing plug is provided at the opening of the injection channel.

[0010] As an optional solution of this application, the first sealing gasket, the second sealing gasket, the first flow channel angle measuring hole area, the second flow channel angle measuring hole area and the leakage signal groove are designed as an integral unit, and the first sealing gasket and the sealing ring are designed as an integral unit.

[0011] As an optional solution of this application, the sealing ring and the pleated part are designed as an integral part with an elliptical cross-section, and the cross-section of the pleated part is designed as an "S" shape. The folding of the pleated part realizes the change of the filling capacity.

[0012] As an optional solution of this application, the filling chamber is filled with a sealing filler material, which is designed in the shape of small spheres, and the pleats achieve the change of filling chamber capacity through the sealing filler material;

[0013] As an optional solution of this application, the insertion rod is adapted to the through hole, and the connection between the insertion rod and the sealing ring is sealed. The extrusion protrusion is designed as an integral part of the insertion rod, and the cross-section of the extrusion protrusion and the insertion rod is designed in the shape of an "I". The edge of the extrusion protrusion is designed in the shape of an arc.

[0014] As an optional solution of this application, the filling chamber is connected to the outside through an injection channel, the injection channel is connected to the sealing plug by a thread, and the connection between the sealing plug and the insertion rod is sealed.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The sealing ring and the pleated section are integrated into a single design, with an elliptical cross-section. The pleated section has an "S"-shaped cross-section. This special design allows the pleated section to fold, thereby changing the filling chamber capacity to adapt to different sealing requirements. Through the interaction between the pleated section and the filler material, a good sealing effect is achieved.

[0017] The insert and through-hole are designed to fit together, ensuring a tight seal at the connection between the insert and the sealing ring. The extrusion protrusion on the insert applies pressure to the sealing gasket during operation, causing it to bend and facilitating disassembly. The extrusion protrusion is integrated with the insert, featuring an "I"-shaped cross-section and rounded edges. This design enhances the strength and stability of the extrusion while minimizing damage to the sealing gasket.

[0018] The gasket can be quickly removed and replaced by squeezing the protrusion on the insert rod, improving maintenance efficiency. Simultaneously, the combined action of the sealing ring, insert rod, and squeezing protrusion ensures the sealing performance of the entire system, preventing leaks and guaranteeing the normal operation of the plate heat exchanger. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the quick-release component of this utility model;

[0021] Figure 3 This is a diagram illustrating the quick-release mechanism of this utility model;

[0022] Figure 4 This is an exploded view of the quick-release component of this utility model.

[0023] In the diagram: 1. First sealing gasket; 2. First flow channel angle measuring hole area; 3. Second sealing gasket; 4. Second flow channel angle measuring hole area; 5. Leakage signal groove; 6. Quick release part; 60. Sealing ring; 61. Pleated part; 62. Filler chamber; 63. Through hole; 64. Insert rod; 65. Extrusion protrusion; 66. Injection channel; 67. Sealing plug. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 4 As shown, a quick-replacement device for plate heat exchanger gaskets is characterized by a primary gasket 1, a primary flow channel angle measuring hole area 2, a secondary gasket 3, a secondary flow channel angle measuring hole area 4, and a leakage signal groove 5. Specifically, the secondary gasket 3 is designed to be located on the side wall of the primary gasket 1, and a primary flow channel angle measuring hole area 2 is provided between the primary gasket 1 and the secondary gasket 3. Furthermore, the secondary flow channel angle measuring hole area 4 is located on the side of the secondary gasket 3, and the leakage signal groove 5 is located between the secondary flow channel angle measuring hole area 4 and the secondary gasket 3.

[0026] To enable quick replacement of the gasket, the gasket 1 is specially equipped with a quick-release component 6. This quick-release component 6 allows for efficient and convenient removal of the entire gasket.

[0027] The quick-release component 6 consists of several parts, including a sealing ring 60. The sealing ring 60 is positioned in the middle of a sealing gasket 1, surrounded by a pleated portion 61. An internal filling chamber 62 is formed within the sealing ring 60. A through-hole 63 is provided on the side wall of the pleated portion 61, into which a rod 64 is inserted. Both ends of the rod 64 are designed with extrusion protrusions 65 to apply pressure to the sealing gasket during operation. The rod 64 also has an injection channel 66, the opening of which is fitted with a sealing plug 67 to ensure the sealing of the filling chamber 62. When the quick-release component 6 extrudes the internal filling material, a cavity is formed inside the quick-release component 6. Through the action of the pleated portion 61, the sealing gasket can be bent, thus facilitating disassembly.

[0028] The primary sealing gasket 1, the secondary sealing gasket 3, the primary flow channel angle measuring hole area 2, the secondary flow channel angle measuring hole area 4, and the leakage signal groove 5 are all integrated into one piece to ensure precise fit and sealing effect between components. Simultaneously, the primary sealing gasket 1 and the sealing ring 60 are also integrated into one piece to reduce the complexity of the assembly process and improve overall reliability.

[0029] The sealing ring 60 and the pleated portion 61 are integrated into one piece, with the sealing ring having an elliptical cross-section, while the pleated portion 61 has an "S"-shaped cross-section. This design allows the pleated portion 61 to be folded, thereby changing the capacity of the filling chamber 62 to adapt to different sealing requirements.

[0030] The filling chamber 62 is filled with spherical sealing filler, which effectively fills the gaps formed after the pleats 61 are folded. Through the interaction between the pleats 61 and the filler, the volume of the filling chamber 62 can be changed, thereby achieving a good sealing effect.

[0031] The insertion rod 64 and the through hole 63 are designed to fit together, ensuring a tight seal at the connection between the insertion rod 64 and the sealing ring 60. The extrusion protrusion 65 is integrally designed with the insertion rod 64, and its cross-section is I-shaped with rounded edges. This design enhances the strength and stability of the extrusion protrusion 65 while reducing damage to the sealing gasket.

[0032] The filling chamber 62 is connected to the outside via the injection channel 66, facilitating the injection or discharge of sealing filler material. The injection channel 66 and the sealing plug 67 are connected by threads to ensure a tight connection. The connection between the sealing plug 67 and the insertion rod 64 is also sealed to ensure the sealing performance of the entire system.

[0033] Ensure the plate heat exchanger is shut down and operate according to the safety operating procedures. Use a special tool or manually to remove the quick-release piece 6 from the first sealing gasket 1. During removal, apply pressure to the gasket by squeezing the extrusion 65 on the insert 64 to bend the gasket. Continue applying pressure until the gasket is completely detached from the first sealing gasket 1.

[0034] Clean away any residual sealing material and impurities from the old gasket. Inspect the integrity of the first gasket 1, the second gasket 3, the first flow channel measuring hole area 2, the second flow channel measuring hole area 4, and the leakage signal groove 5, ensuring there is no damage or deformation. Place the new gasket in the corresponding position of the first gasket 1. Insert the insert 64 through the through hole 63 of the quick-release piece 6, ensuring a proper fit between the insert 64 and the through hole 63. Inject new spherical sealing filler into the filling chamber 62 through the injection channel 66 until the filling chamber 62 is full. Ensure the filler is evenly distributed without any noticeable gaps.

[0035] After filling, tighten the sealing plug 67 onto the injection channel 66 using the threaded connection to ensure sealing performance. Check that the "S"-shaped structure of the pleats 61 can fold properly to adapt to different sealing requirements. Confirm that the new sealing gasket is installed correctly, without misalignment or looseness. Check the sealing of all connections to ensure there are no leaks. After confirming that all components are installed correctly, restart the plate heat exchanger for normal operation.

[0036] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick replacement device for sealing gaskets of plate heat exchangers, comprising a sealing gasket (1), a flow channel angle measuring hole area (2), two sealing gaskets (3), two flow channel angle measuring hole areas (4) and a leakage signal groove (5), the two sealing gaskets (3) are located on the side wall of the sealing gasket (1), the sealing gasket (1) and the two sealing gaskets (3) are connected by the flow channel angle measuring hole area (2), the two flow channel angle measuring hole areas (4) are located on the side of the two sealing gaskets (3), and the two flow channel angle measuring hole areas (4) and the two sealing gaskets (3) are connected by the leakage signal groove (5), characterized in that: The sealing gasket (1) is provided with a quick-release piece (6), through which the entire sealing gasket can be disassembled; The quick-release component (6) includes a sealing ring (60), which is located in the middle section of a sealing gasket (1). The sealing ring (60) has a pleated part (61) on its outside and a filling chamber (62) is formed inside the sealing ring (60). A through hole (63) is opened on the side wall of the pleated part (61), and a rod (64) is inserted into the hole of the through hole (63). The rod (64) has extrusion protrusions (65) at both ends and an injection channel (66) is opened on the rod (64). A sealing plug (67) is provided at the opening of the injection channel (66).

2. A quick replacement device for gaskets of a plate heat exchanger according to claim 1, characterized in that: The first sealing gasket (1), the second sealing gasket (3), the first flow channel angle measuring hole area (2), the second flow channel angle measuring hole area (4) and the leakage signal groove (5) are designed as an integral unit, and the first sealing gasket (1) and the sealing ring (60) are designed as an integral unit.

3. A quick replacement device for gaskets of a plate heat exchanger according to claim 2, characterized in that: The sealing ring (60) and the pleated part (61) are designed as a single unit and have an elliptical cross-section. The pleated part (61) has an "S" shaped cross-section. The folding of the pleated part (61) changes the capacity of the filling chamber (62).

4. A quick replacement device for gaskets of a plate heat exchanger according to claim 3, characterized in that: The filling chamber (62) is filled with a sealing filler material, which is designed in the shape of small spheres. The pleats (61) achieve the change of the capacity of the filling chamber (62) through the sealing filler material.

5. A quick replacement device for gaskets of a plate heat exchanger according to claim 4, characterized in that: The insertion rod (64) is adapted to the through hole (63), and the connection between the insertion rod (64) and the sealing ring (60) is sealed. The extrusion protrusion (65) is integrated with the insertion rod (64), and the cross-section of the extrusion protrusion (65) and the insertion rod (64) is in the shape of an "I". The edge of the extrusion protrusion (65) is arc-shaped.

6. A quick replacement device for gaskets of a plate heat exchanger according to claim 5, characterized in that: The filling chamber (62) is connected to the outside through the injection channel (66), and the injection channel (66) is connected to the sealing plug (67) by a thread, and the connection between the sealing plug (67) and the insertion rod (64) is sealed.

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