Flanging type high-temperature high-airtightness soft joint

Abstract

The utility model relates to the technical field of high-temperature soft connectors, in particular to a flanging type high-temperature high-airtightness soft connector which comprises an outer sleeve, sealing flangings connected with flanges are arranged on the two sides of the outer sleeve, the inner side of the outer sleeve is covered with a flexible lining, the flexible lining extends to the sealing flangings, and the flexible lining extends to the roots of the bent positions of the inner sides of the sealing flangings. The flexible lining is made of a high-temperature-resistant material, in order to improve the connection stability between the flexible joint and the flange, the sealing turnups connected with the flange are arranged on the two sides of the outer sleeve, so that the outer sleeve can be better attached to the shape of the flange, the sealing performance of connection with the flange is improved, the flexible lining is made of the high-temperature-resistant material, and the high-temperature-resistant characteristic of the outer sleeve in use is improved; and the flexible lining extends to the root part of the bent part of the inner side of the sealing flange, so that the flexible lining can cover the sealing flange connected with the flange, and the overall high-temperature-resistant characteristic of the sealing flange is improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature flexible joints, in particular to a flanging type high-temperature and high-airtight flexible joint. Background Art

[0002] The air duct is a piping system used for air transportation and distribution. Existing air ducts need to be connected by fireproof flexible joints, but the existing fireproof flexible joints have poor high temperature resistance. When high-temperature exhaust treatment is required during special periods, traditional fireproof flexible joints cannot support the air volume transportation treatment at high temperatures for a long time. What's worse, spontaneous combustion may occur, causing serious consequences. When the flexible joint is connected to the flange, the flange connection is often connected to the flange with a flanging design, but the outside of the flanging part will be exposed to the outside. When the flange temperature rises, it will affect the connection stability of the flanging part. How to improve the high temperature resistance of the flanging and make it meet the flexibility requirements when the flexible joint is used? Therefore, a flanging type high-temperature and high-airtight flexible joint is needed. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a flanged high-temperature and high-airtight flexible joint, which is used to solve the problem of high temperature resistance of the flanged connecting flange part of the flexible joint in the prior art.

[0004] To achieve the above objectives and other related objectives, the present invention provides the following technical solutions:

[0005] A flanged high-temperature and high-airtight flexible joint comprises an outer sleeve, sealing flanges for connecting flanges are arranged on both sides of the outer sleeve, the inner side of the outer sleeve is covered with a flexible lining, the flexible lining extends to the sealing flange setting, and the flexible lining extends all the way to the root of the inner side bend of the sealing flange, and the flexible lining is a high-temperature resistant material.

[0006] To implement the above technical solution, in order to improve the connection stability between the flexible joint and the flange, sealing flanges for connecting the flanges are arranged on both sides of the outer sleeve, so that they can better fit the shape of the flange and improve the sealing of the connection with the flange. The flexible lining is made of high temperature resistant material, which improves the high temperature resistance of the outer sleeve when used. The flexible lining is extended to the root of the inner bend of the sealing flange, so that the flexible lining can cover the sealing flange of the flange connection, thereby improving the overall high temperature resistance of the sealing flange. Even if the high temperature at the flange is transmitted to the inside of the sealing flange, the sealing flange can maintain good high temperature resistance, thereby ensuring the reliability of the sealing flange when used.

[0007] In one embodiment of the present invention, the overlapped seam of the flexible liner covering the connection portion between the sealing flange and the outer sleeve is not parallel to the axis.

[0008] To implement the above technical solution, the overlapped seam of the flexible lining is placed at a non-parallel angle to the axis, so that the flexible joint can have better shear force when it is axially stretched and compressed.

[0009] In one embodiment of the present invention, a flange hole is provided on the sealing flange, and a lining through hole matching the flange hole is provided on the flexible lining.

[0010] To implement the above technical solution, by providing flange holes to cooperate with the lining through holes, the connection between the flange and the liner can be facilitated during use, and the sealing effect in the flexible joint can be better maintained.

[0011] In one embodiment of the present invention, the sealing flange is a planar sealing surface.

[0012] To implement the above technical solution, the sealing flange is set as a flat sealing surface, which can better fit the flange and ensure the sealing effect when the flexible joint is connected to the flange.

[0013] In one embodiment of the present invention, the outer cover is made of silicone cloth.

[0014] The implementation of the above technical solution can make the outer jacket have better flexibility and better sealing effect during use. The silicone cloth can withstand a temperature of 220 degrees for a long time and 280 degrees for a short time.

[0015] In one embodiment of the present invention, the lining is high temperature resistant carbon fiber cloth, high silica cloth, basalt cloth, ceramic fiber cloth or quartz fiber cloth.

[0016] To implement the above technical solution, high-silica cloth, carbon fiber cloth, basalt cloth, ceramic fiber cloth or quartz fiber cloth all have good high temperature resistance and can withstand temperatures of 1000 degrees for a long time, thereby ensuring the sealing stability of the connection between the liner and the flange.

[0017] In one embodiment of the present invention, the sealing flange of the outer sleeve is a three-dimensional flange.

[0018] To implement the above technical solution, when the flexible joint needs to be sleeved on the pipeline, the sealing flange of the outer sleeve is a three-dimensional flange to maintain a good sealing effect.

[0019] In one embodiment of the present invention, a supporting wire ring is provided on the outer sleeve.

[0020] By implementing the above technical solution and providing a supporting wire ring, the overall supporting strength of the flexible joint can be improved.

[0021] As described above, a flanged high-temperature and high-airtight flexible joint of the present invention has the following beneficial effects: in order to improve the connection stability between the flexible joint and the flange, sealing flanges for connecting the flanges are arranged on both sides of the outer sleeve, so that the flange shape can be better fitted and the sealing of the connection with the flange can be improved. The flexible lining is a high-temperature resistant material, which improves the high-temperature resistance of the outer sleeve when in use. Extending the flexible lining all the way to the root of the inner bend of the sealing flange can make the flexible lining cover the sealing flange of the flange connection, thereby improving the overall high-temperature resistance of the sealing flange. Even if the high temperature at the flange is transmitted to the inside of the sealing flange, the sealing flange can maintain good high-temperature resistance, thereby ensuring the reliability of the sealing flange when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a schematic structural diagram of a flanged high-temperature and high-airtight flexible joint disclosed in an embodiment of the present invention.

[0023] Figure 2 Shown is a schematic diagram of the flange hole structure of the flanging type high temperature and high airtight flexible joint disclosed in an embodiment of the present invention.

[0024] Component number description

[0025] 1. Outer jacket; 2. Sealing flange; 3. Flexible lining; 4. Flange hole. DETAILED DESCRIPTION

[0026] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] See also Figure 1 to Figure 2 The present invention provides a flanged high-temperature and high-airtight flexible joint, comprising an outer jacket 1, sealing flanges 2 for connecting flanges are arranged on both sides of the outer jacket 1, the inner side of the outer jacket 1 is covered with a flexible lining 3, the flexible lining 3 extends to the sealing flange 2, and the flexible lining 3 extends all the way to the root of the inner bend of the sealing flange 2, and the flexible lining 3 is a high-temperature resistant material.

[0028] In order to improve the connection stability between the flexible joint and the flange, sealing flanges 2 for connecting the flanges are arranged on both sides of the outer sleeve 1, so that they can better fit the flange shape and improve the sealing of the connection with the flange. The flexible lining 3 is made of high temperature resistant material to improve the high temperature resistance of the outer sleeve 1 when it is used. The flexible lining 3 is extended to the root of the inner bend of the sealing flange 2, so that the flexible lining 3 can cover the sealing flange 2 of the flange connection, thereby improving the overall high temperature resistance of the sealing flange 2. Even if the high temperature at the flange is transmitted to the inside of the sealing flange 2, the sealing flange 2 can maintain good high temperature resistance, thereby ensuring the reliability of the sealing flange 2 when it is used.

[0029] The seam overlap of the flexible lining 3 covering the connection between the sealing flange 2 and the outer sleeve 1 is non-parallel to the axis. The seam overlap of the flexible lining 3 is non-parallel to the axis, which can make the flexible joint have better shear force when it is axially stretched and compressed.

[0030] A flange hole 4 is provided on the sealing flange 2, and an inner lining through hole matching the flange hole 4 is opened on the flexible lining 3. By opening the flange hole 4 and matching the inner lining through hole, the connection between the flange and the flexible joint can be facilitated during use, and the sealing effect in the flexible joint can be better maintained. The sealing flange 2 is a flat sealing surface. Setting the sealing flange 2 as a flat sealing surface can better fit the flange and ensure the sealing effect when the flexible joint is connected to the flange.

[0031] The outer jacket 1 is made of silicone cloth, which can make the outer jacket 1 have better flexibility and better sealing effect. The silicone cloth has a long-term temperature resistance of 220 degrees and a short-term temperature resistance of 280 degrees. The lining is high-temperature resistant carbon fiber cloth, high-silica cloth, basalt cloth, ceramic fiber cloth or quartz fiber cloth. High-silica cloth, carbon fiber cloth, basalt cloth, ceramic fiber cloth or quartz fiber cloth all have good high-temperature resistance and a long-term temperature resistance of 1000 degrees, thereby ensuring the sealing stability of the connection between the liner and the flange.

[0032] The sealing flange 2 of the outer sleeve 1 is a three-dimensional flange. When the flexible joint needs to be sleeved on the pipeline, the sealing flange 2 of the outer sleeve 1 is a three-dimensional flange to maintain a good sealing effect. A supporting steel wire ring (not shown in the figure) is provided on the outer sleeve. By setting the supporting steel wire ring, the overall supporting strength of the flexible joint can be improved.

[0033] In order to improve the connection stability between the flexible joint and the flange, the present invention arranges sealing flanges for connecting the flanges on both sides of the outer sleeve, so that it can better fit the shape of the flange and improve the sealing of the connection with the flange. The flexible lining is made of high temperature resistant material to improve the high temperature resistance of the outer sleeve when in use. The flexible lining is extended to the root of the inner bend of the sealing flange, so that the flexible lining can cover the sealing flange of the flange connection, thereby improving the overall high temperature resistance of the sealing flange. Even if the high temperature at the flange is transmitted to the inside of the sealing flange, the sealing flange can still maintain good high temperature resistance, thereby ensuring the reliability of the sealing flange when in use.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A flanging type high temperature and high airtight flexible joint, characterized in that: It includes an outer jacket, and sealing flanges for connecting flanges are arranged on both sides of the outer jacket. The inner side of the outer jacket is covered with a flexible lining, and the flexible lining extends to the sealing flange setting, and the flexible lining extends all the way to the root of the inner side bend of the sealing flange. The flexible lining is a high temperature resistant material.

2. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The seam overlap of the flexible liner covering the connection portion between the sealing flange and the outer sleeve is in a non-parallel state with the axis.

3. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The sealing flange is provided with a flange hole, and the flexible lining is provided with a lining through hole matching the flange hole.

4. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The sealing flange is a planar sealing surface.

5. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The outer jacket is made of silicone cloth.

6. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The inner lining is made of high temperature resistant carbon fiber cloth, high silica cloth, basalt cloth, ceramic fiber cloth or quartz fiber cloth.

7. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: The sealing flange of the outer sleeve is a three-dimensional flange.

8. The flanged high temperature and high airtight flexible joint according to claim 1, characterized in that: A supporting wire ring is arranged on the outer sleeve.

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