Octagonal sealing washer
By adopting thermal conductivity, isolation structure and shrinkage pulling structure in the octagonal sealing gasket, the problem of deterioration of sealing properties due to inconsistent temperature is solved, and the temperature uniformity and sealing properties of the gasket body are improved.
Patent Information
- Application Number
- CN202421582786.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In an outdoor low-temperature environment, the radial sealing properties of the octagonal sealing gasket are deteriorated due to the inconsistent temperatures on both sides of the inner and outer sides.
The thermal conductivity structure is used to accelerate heat conduction, the isolation structure forms an isolation cavity to slow down heat loss, and the temperature of the washer body is uniform and easy to assemble through the shrinking and pulling structure.
The temperature difference of the gasket body is effectively controlled, the sealing is improved, and the assembly process is simplified.
Smart Images
Figure CN222687564U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sealing gaskets, and in particular to an octagonal sealing gasket. Background Art
[0002] Flange gaskets are used in pipeline flange connections and are seals between two flanges. The medium, pressure and temperature directly affect the selection of flange gaskets. The octagonal gasket originated from the United States. This gasket is usually used in high-temperature and high-pressure steam, high-temperature and high-pressure valve covers, etc.
[0003] Since the inner and outer sides of the octagonal gasket are in direct contact with the air and the inner side of the pipe, in some areas with low outdoor temperatures, the temperatures on the inner and outer sides of the octagonal gasket are inconsistent, which will lead to poor radial sealing. In response to the above-mentioned related technologies, the applicant has proposed a structure to improve the inconsistent temperature inside and outside the octagonal gasket and ensure the sealing performance of the sealing gasket. Utility Model Content
[0004] In order to make the temperatures of the inner and outer rings of the octagonal gasket consistent, ensure uniform force, and improve the sealing performance of the gasket, the present application provides an octagonal sealing gasket.
[0005] The octagonal sealing gasket provided in this application adopts the following technical solution:
[0006] An octagonal sealing gasket comprises an annular gasket body with an octagonal cross section, the gasket body is provided with flanges screwed to each other at the top and bottom, the gasket body is provided with a heat-conducting structure close to the inner and outer sides of the gasket body and the two sides are connected to each other; an isolation structure is sleeved on the outer side of the gasket body, the isolation structure is longitudinally extended and abuts against the flanges on both sides; shrinkage and pulling structures are provided on the upper and lower ends of the isolation structure, the shrinkage and pulling structures are close to each other and inserted into the outer side wall of the gasket body; when the temperature of the gasket body rises, the gap of the shrinkage and pulling structure becomes larger, and a gap is generated between the shrinkage and pulling structure and the gasket body.
[0007] By adopting the above technical solution, the gasket body accelerates heat conduction through the heat-conducting structures on both sides, so that the heat lost on the outside can be quickly replenished, thereby controlling the temperature difference. The isolation structure forms an isolation cavity on the gasket body originally exposed to the air, causing the air around the gasket body to lose flow velocity, thereby slowing down heat loss. At the same time, the contraction and pulling structure makes the gasket body easy to assemble.
[0008] The isolation structure includes an elastic cavity and an elastic isolation plate. The elastic cavity is annularly sleeved on the outside of the gasket body. A gap is left between the two side walls of the elastic cavity, and the two side walls are close to each other. The elastic isolation plates are respectively fixed to the upper and lower ends of the outer side wall of the elastic cavity, and extend toward the flange on the corresponding side and bend and abut against it. The elastic isolation plates overlap each other and surround the outside of the elastic cavity.
[0009] By adopting the above technical solution, the elastic cavity cooperates with the elastic isolation plate to adapt to flanges with different spacings, so that the elastic isolation plate can be stably abutted to form a complete chamber, effectively isolating heat loss.
[0010] Preferably, the contraction pulling structure includes temperature-controlled jaws and a pulling wire. The temperature-controlled jaws are fixed at intervals on the outer side wall of the gasket body, and the temperature-controlled jaws are arranged at the upper and lower ends of the elastic cavity corresponding to the temperature-controlled jaws. The pulling wires are fixed at the upper and lower ends of the elastic cavity, and the pulling wires are plugged into and positioned at the corresponding temperature-controlled jaws, and the pulling wires are close to each other from one side of the elastic cavity to one side of the temperature-controlled jaws.
[0011] By adopting the above technical solution, the temperature-controlled clamp automatically releases the pulling wire after heating up, eliminating the trouble of manual operation and making it convenient and quick to use.
[0012] Preferably, the elastic cavity contains non-woven yarns.
[0013] Preferably, a vent hole is provided on the outer side wall of the elastic cavity.
[0014] Preferably, the temperature-controlled clamp includes a clamping layer and a deformation layer, the deformation layer is fixed to the outer wall of the gasket body; the clamping layer is accommodated and fixed to the inner side of the deformation layer, and the pulling wire is plugged into the clamping layer; the degree of thermal deformation of the deformation layer is smaller than that of the clamping layer.
[0015] Preferably, the heat-conducting structure includes heat-conducting columns, heat-dissipating columns and connecting columns. The heat-conducting columns are accommodated and spaced apart on the side of the gasket body close to the inner wall; the heat-dissipating columns are accommodated and spaced apart and fixed on the side of the gasket body close to the outer wall; the connecting columns are accommodated in the gasket body and are respectively connected to the corresponding heat-conducting columns and heat-dissipating columns, and the heat-conducting columns, heat-dissipating columns and connecting columns are made of aluminum alloy with good thermal conductivity.
[0016] In summary, the present application includes at least one of the following beneficial technical effects:
[0017] The gasket body accelerates heat conduction through the heat conduction structures on both sides, so that the heat lost on the outside can be quickly replenished, thereby controlling the temperature difference. The isolation structure forms an isolation cavity on the gasket body originally exposed to the air, so that the air around the gasket body loses its flow rate, thereby slowing down the heat loss. At the same time, the contraction and pulling structure makes the gasket body easy to assemble;
[0018] The elastic cavity cooperates with the elastic isolation plate to adapt to flanges with different spacings, so that the elastic isolation plate can be stably abutted to form a complete chamber, effectively isolating heat loss;
[0019] The temperature-controlled clamp automatically releases the pulling wire after heating up, eliminating the trouble of manual operation and making it convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1is a half-section view of an embodiment of the present application;
[0021] Figure 2 is a schematic diagram showing a heat-conducting structure in an embodiment of the present application;
[0022] Figure 3 yes Figure 1 An enlarged view of part A;
[0023] Figure 4 It is a schematic diagram of the structure of the hidden flange in an embodiment of the present application.
[0024] Explanation of the accompanying drawings: 1. Flange; 2. Gasket body; 3. Heat-conducting structure; 31. Heat-conducting column; 32. Heat-dissipating column; 33. Connecting column; 4. Isolation structure; 41. Elastic cavity; 42. Elastic isolation plate; 5. Contraction and pulling structure; 51. Temperature-controlled clamp; 511. Clamping layer; 512. Deformation layer; 52. Pulling wire; 6. Vent. DETAILED DESCRIPTION
[0025] The present application is further described in detail below in conjunction with the accompanying drawings.
[0026] The present application embodiment discloses an octagonal sealing gasket, referring to Figure 1 , 2 , including an annular gasket body 2 with an octagonal cross section, and the annular gasket body 2 is provided with flanges 1 screwed to each other at the top and bottom.
[0027] Reference Figure 1 , 2 The gasket body 2 contains a heat-conducting structure 3, which includes a heat-conducting column 31, a heat-dissipating column 32 and a connecting column 33. The heat-conducting column 31 is accommodated and spaced apart on the side of the gasket body 2 close to the inner wall; the heat-dissipating column 32 is accommodated and spaced apart and fixed on the side of the gasket body 2 close to the outer wall; the connecting column 33 is accommodated in the gasket body 2 and is respectively connected to the corresponding heat-conducting column 31 and the heat-dissipating column 32, and the heat-conducting column 31, the heat-dissipating column 32 and the connecting column 33 use an aluminum alloy with good thermal conductivity, thereby accelerating heat transfer and making the temperature inside and outside the gasket body 2 consistent.
[0028] Reference Figure 3 , 4An isolation structure 4 is sleeved on the outside of the gasket body 2. The isolation structure 4 includes an elastic cavity 41 and an elastic isolation plate 42. The elastic cavity 41 is annularly sleeved on the outside of the gasket body 2. A gap is left between the two side walls of the elastic cavity 41, and the two side walls are close to each other. Non-woven yarns are placed in the elastic cavity 41. The non-woven yarns maintain the thickness of the elastic cavity 41 to enhance the heat insulation ability. Vents 6 are opened on the outer wall of the elastic cavity 41 to make the elastic cavity 41 shrink smoothly; the elastic isolation plates 42 are respectively fixed to the upper and lower ends of the outer wall of the elastic cavity 41, and respectively extend to the flange 1 on the corresponding side and bend and abut, and the elastic isolation plates 42 overlap each other and surround the outer side of the elastic cavity 41.
[0029] Reference Figure 3 , 4 A shrinkage pulling structure 5 is provided on the upper and lower ends of the elastic cavity 41, and the shrinkage pulling structure 5 includes a temperature-controlled clamping jaw 51 and a pulling wire 52. The temperature-controlled clamping jaw 51 is fixed at intervals on the outer wall of the gasket body 2, and the temperature-controlled clamping jaw 51 is arranged corresponding to the upper and lower ends of the elastic cavity 41; the temperature-controlled clamping jaw 51 includes a clamping layer 511 and a deformation layer 512, and the deformation layer 512 is fixed on the outer wall of the gasket body 2; the clamping layer 511 is accommodated and fixed on the inner side of the deformation layer 512, and the degree of thermal deformation of the deformation layer 512 is less than that of the clamping layer.
[0030] Reference Figure 3 , 4 The pulling wire 52 is respectively fixed at the upper and lower ends of the elastic cavity 41, and the pulling wire 52 is inserted and positioned at the corresponding clamping layer 511, and the pulling wire 52 is close to each other from one side of the elastic cavity 41 to the side of the temperature control clamping claw 51; when the gasket body 2 is heated, the thermal expansion degree of the clamping layer 511 is greater than that of the deformation layer 512, and the clamping layer 511 bends toward the deformation layer 512, then the clamping layer 511 cannot clamp the pulling wire 52.
[0031] The working process of the present application is: the flanges 1 on both sides are clamped to the gasket body 2, and when the high-temperature liquid passes through the pipeline, the liquid is in direct contact with the gasket body 2, and the heat is evenly dispersed in the entire gasket body 2 through the heat transfer of the connecting column 33.
[0032] However, since the gasket body 2 is in contact with the air at the same time, an elastic isolation plate 42 is used to isolate the air circulation. At room temperature, the pulling wire 52 is inserted into the temperature control clamp 51, and the pulling wire 52 is pulled inward, so that the elastic cavity 41 remains in a contracted state up and down and maintains connectivity with the gasket body 2, thereby facilitating installation; when the gasket body 2 is heated, the temperature control clamp 51 is heated and the pulling wire 52 is released, and the elastic cavity 41 extends toward the upper and lower ends, so that the elastic isolation plate 42 is completely in contact with the flange 1, positioning is achieved, and the gasket body 2 is isolated so that the gasket body 2 is not in contact with the air, thereby ensuring the temperature consistency of the inner and outer circles.
[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An octagonal sealing gasket, comprising an annular gasket body (2) with an octagonal cross section, the gasket body (2) being provided with flanges (1) threadedly connected to each other at the top and bottom, characterized in that: The gasket body (2) contains a heat-conducting structure (3) close to both sides of the gasket body (2) and connected to each other; an isolation structure (4) is sleeved on the outside of the gasket body (2), and the isolation structure (4) is longitudinally retracted and abuts against the flanges (1) on both sides; shrinkage and pulling structures (5) are provided on the upper and lower ends of the isolation structure (4), and the shrinkage and pulling structures (5) are close to each other and inserted into the outer wall of the gasket body (2); when the temperature of the gasket body (2) rises, the gap of the shrinkage and pulling structure (5) becomes larger, and a gap is generated between the shrinkage and pulling structure (5) and the gasket body (2).
2. An octagonal sealing gasket according to claim 1, characterized in that: The isolation structure (4) comprises an elastic cavity (41) and an elastic isolation plate (42); the elastic cavity (41) is annularly sleeved on the outside of the gasket body (2); a gap is left between the two side walls of the elastic cavity (41), and the two side walls are close to each other; the elastic isolation plates (42) are respectively fixed to the upper and lower ends of the outer side wall of the elastic cavity (41), and respectively extend toward the flange (1) on the corresponding side and bend to abut against it; the elastic isolation plates (42) overlap each other and surround the outside of the elastic cavity (41).
3. An octagonal sealing gasket according to claim 2, characterized in that: The contraction pulling structure (5) comprises a temperature-controlled clamping jaw (51) and a pulling wire (52); the temperature-controlled clamping jaw (51) is fixed at intervals on the outer wall of the gasket body (2), and the temperature-controlled clamping jaw (51) is arranged at the upper and lower ends of the corresponding elastic cavity (41); the pulling wire (52) is fixed at the upper and lower ends of the elastic cavity (41), the pulling wire (52) is plugged into and positioned at the corresponding temperature-controlled clamping jaw (51), and the pulling wire (52) approaches each other from one side of the elastic cavity (41) to one side of the temperature-controlled clamping jaw (51).
4. An octagonal sealing gasket according to claim 2, characterized in that: The elastic cavity (41) contains non-spun yarn.
5. The octagonal sealing gasket according to claim 2, characterized in that: A vent hole (6) is provided on the outer side wall of the elastic cavity (41).
6. An octagonal sealing gasket according to claim 3, characterized in that: The temperature-controlled clamping jaw (51) comprises a clamping layer (511) and a deformation layer (512); the deformation layer (512) is fixed to the outer wall of the gasket body (2); the clamping layer (511) is accommodated and fixed to the inner side of the deformation layer (512); the pulling wire (52) is plugged into the clamping layer (511); the degree of thermal deformation of the deformation layer (512) is smaller than that of the clamping layer (511).
7. An octagonal sealing gasket according to claim 1, characterized in that: The heat-conducting structure (3) comprises a heat-conducting column (31), a heat-dissipating column (32) and a connecting column (33); the heat-conducting column (31) is accommodated and spaced apart on a side of the gasket body (2) close to the inner wall; the heat-dissipating column (32) is accommodated and spaced apart on a side of the gasket body (2) close to the outer wall; the connecting column (33) is accommodated in the gasket body (2) and is respectively connected to the corresponding heat-conducting column (31) and the heat-dissipating column (32); and the heat-conducting column (31), the heat-dissipating column (32) and the connecting column (33) are made of aluminum alloy with good thermal conductivity.