CN219571227U - Secondary sealing device for expansion joint threaded pipe - Google Patents
Secondary sealing device for expansion joint threaded pipe Download PDFInfo
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- CN219571227U CN219571227U CN202320604309.6U CN202320604309U CN219571227U CN 219571227 U CN219571227 U CN 219571227U CN 202320604309 U CN202320604309 U CN 202320604309U CN 219571227 U CN219571227 U CN 219571227U
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Abstract
The utility model relates to the field of connection of corrugated pipes, in particular to a secondary sealing device for an expansion joint threaded pipe. The secondary sealing device comprises an upper ceramic graphite composite block (3) and a lower ceramic graphite composite block (5); the upper ceramic graphite composite block (3) and the upper connecting steel structural member (4) are fixed by adopting a fixing bolt; the lower end ceramic graphite composite block (5) and the lower end connecting steel structural member (6) are fixed by adopting a fixing bolt; the upper end of the steel structural member (4) is connected with the lower part of the large steel coil in a welding manner; the lower end of the small steel coil is connected with a steel structural member (6) and is welded and fixed with the upper part of the small steel coil; high-temperature-resistant heat-insulating cotton (2) is arranged between the upper end connecting steel structural member (4) and the lower end connecting steel structural member (6). The inside high temperature resistant cotton that has of this patent possesses elasticity adjustment volume and secondary seal effect. The telescopic adjusting gap between the upper ceramic graphite composite block (3) and the lower ceramic graphite composite block (5) is very small. Thereby further protecting the telescopic adjustment slit.
Description
Technical Field
The utility model relates to the field of connection of corrugated pipes, in particular to a secondary sealing device for an expansion joint threaded pipe.
Background
The expansion joint of corrugated pipe is also called as corrugated expansion joint and compensator, and is mainly used for ensuring safe operation of pipeline. The compensation function has the functions of pressure resistance, corrosion resistance, temperature resistance, shock resistance, vibration reduction, noise reduction and the like, can reduce the deformation of a pipeline, prolongs the service life of the pipeline, is used in a high-temperature gas environment containing a large amount of dust, the inside of a traditional expansion joint threaded pipe adopts a method of tightly attaching a steel coil to an inner shell, generally adopts 2 steel cylinders, a large cylinder sleeve and a small cylinder, an annular through seam is reserved after refractory material construction, high-temperature cotton is plugged in, the use process has great risks, the high-temperature cotton is easily taken away by high-speed airflow, a large amount of dust can be led to enter and stay in the telescopic adjustment seam, more and more dust is led to be led to the telescopic function failure of the expansion joint threaded pipe, the high-temperature gas can also lead to the ablation of the expansion joint threaded pipe, smoke emission, ash leakage and other environmental protection accidents can be led to after the steel cylinders and the corrugated pipe are damaged, the wind pressure fluctuation can also be seriously led to the production stoppage accident, and the equipment cannot stretch according to the design scheme in the high-low temperature change process due to influence, so that the damage displacement and deformation of the end equipment are led to the end equipment to be irreversible damage.
Searching in the Chinese patent publication library, CN207634876U discloses a high-temperature metal expansion joint which is completely different from the patent.
Disclosure of Invention
The purpose of the utility model is that: in order to provide a secondary sealing device for an expansion joint threaded pipe with better effect, specific purposes are seen in a plurality of substantial technical effects of the implementation part.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a secondary sealing device for an expansion joint threaded pipe is characterized in that a large steel coil and a small steel coil are nested with each other,
the secondary sealing device comprises an upper ceramic graphite composite block 3 and a lower ceramic graphite composite block 5;
the upper ceramic graphite composite block 3 and the upper connecting steel structural member 4 are fixed by adopting a fixing bolt;
the lower end ceramic graphite composite block 5 and the lower end connecting steel structural member 6 are fixed by adopting a fixing bolt;
the upper end of the large steel coil is connected with the steel structural member 4 and is welded and fixed with the lower part of the large steel coil;
the lower end of the small steel coil is connected with the steel structural member 6 and the upper part of the small steel coil by welding and fixing;
a high-temperature-resistant heat-insulating cotton 2 is arranged between the upper end connecting steel structural member 4 and the lower end connecting steel structural member 6;
both the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are L-shaped.
The utility model further adopts the technical scheme that the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 respectively comprise a plurality of sections, the upper ceramic graphite composite blocks 3 of the sections are embedded through a step structure 9, and the lower ceramic graphite composite blocks 5 of the sections are embedded through the step structure 9.
The utility model further adopts the technical scheme that each section of upper-end ceramic graphite composite block 3 is fixed by three upper-end connecting steel structural members 4 through fixing bolts, and each upper-end connecting steel structural member 4 is fixedly connected by two fixing bolts.
The utility model further adopts the technical scheme that the multiple sections are eight sections.
The utility model further adopts the technical scheme that the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are tightly attached.
The utility model further adopts the technical scheme that the high-temperature-resistant heat-preserving cotton 2 is of an elastic structure.
Compared with the prior art, the utility model adopting the technical scheme has the following beneficial effects: the ceramic graphite composite block has high temperature resistance, high strength and smooth surface, and is suitable for various complex application environments. The inside high temperature resistant cotton that has of this patent possesses elasticity adjustment volume and secondary seal effect. The telescopic adjusting gaps of the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are very small. Thereby further protecting the telescopic adjustment slit.
Drawings
For further explanation of the utility model, reference is made to the following further description, taken in conjunction with the accompanying drawings:
FIG. 1 is an exploded view of the utility model;
FIG. 2 is an enlarged view of a partial structure of the utility model;
FIG. 3 is a schematic top view of the utility model;
FIG. 4 is a schematic view in section A-A of FIG. 3;
FIG. 5 is a schematic view of the B-B cross-section of FIG. 3;
FIG. 6 is a perspective view of the utility model;
wherein: 1 expansion joint, 2 high temperature resistant heat insulation cotton, 3 upper ceramic graphite composite block, 4 upper connecting steel structure, 5 lower ceramic graphite composite block, 6 lower connecting steel structure, 7 fixing bolt, 8 unit; 9. a stepped structure.
Detailed Description
The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model. In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The patent provides a plurality of parallel schemes, and the different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each scheme has its own unique features. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other. The fixing manner not described herein may be any fixing manner such as screw fixing, bolt fixing or glue bonding.
Embodiment one: with reference to the entire drawing; a secondary sealing device for an expansion joint threaded pipe is characterized in that a large steel coil and a small steel coil are nested with each other,
the secondary sealing device comprises an upper ceramic graphite composite block 3 and a lower ceramic graphite composite block 5;
the upper ceramic graphite composite block 3 and the upper connecting steel structural member 4 are fixed by adopting a fixing bolt;
the lower end ceramic graphite composite block 5 and the lower end connecting steel structural member 6 are fixed by adopting a fixing bolt;
the upper end of the large steel coil is connected with the steel structural member 4 and is welded and fixed with the lower part of the large steel coil;
the lower end of the small steel coil is connected with the steel structural member 6 and the upper part of the small steel coil by welding and fixing;
a high-temperature-resistant heat-insulating cotton 2 is arranged between the upper end connecting steel structural member 4 and the lower end connecting steel structural member 6;
both the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are L-shaped.
The essential technical effects and the realization process thereof, namely the basic functions, played by the technical proposal are as follows: the ceramic graphite composite block has high temperature resistance, high strength and smooth surface, and is suitable for various complex application environments.
The inside high temperature resistant cotton that has of this patent possesses elasticity adjustment volume and secondary seal effect.
The telescopic adjusting gaps of the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are very small. Thereby further protecting the telescopic adjustment slit.
Embodiment two: as a further improvement scheme or a parallel scheme or an alternative independent scheme, the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 respectively comprise a plurality of sections, the upper ceramic graphite composite blocks 3 of the sections are embedded through a step structure 9, and the lower ceramic graphite composite blocks 5 of the sections are embedded through the step structure 9. The essential technical effect and the realization process of the technical scheme are that the ladder structure 9 can be matched, the plurality of units can be assembled conveniently, and the installation is convenient.
Embodiment III: as a further improvement scheme or a parallel scheme or an alternative independent scheme, each section of upper ceramic graphite composite block 3 is fixed by three upper end connecting steel structural members 4 through fixing bolts, and each upper end connecting steel structural member 4 is fixedly connected by two fixing bolts.
Embodiment four: as a further development or juxtaposition or alternatively independent, the multiple segments are eight segments.
Fifth embodiment: as a further improvement, a parallel arrangement or an alternative independent arrangement, the upper ceramic graphite composite block 3 and the lower ceramic graphite composite block 5 are closely attached. The technical proposal has the substantial technical effect that the realization process has the following basic functions, so that the gap is small, the invasion of smoke dust can not occur, and the safety is better.
Example six: as a further improvement scheme or a parallel scheme or an alternative independent scheme, the high-temperature-resistant heat-insulating cotton 2 is of an elastic structure.
The connecting strength between the corrugated pipe expansion joint and the corrugated pipe is high; this patent has protected dust impurity not to get into flexible regulation gap to protected expansion joint screwed pipe's flexible function, prolonged expansion joint screwed pipe's life greatly, reduced user's life and cost of maintenance. For the construction of the upper ceramic graphite composite block and the lower ceramic graphite composite block, a circumferential array 8-section design is adopted, and the joint adopts a stepped butt joint structure, so that the tightness is better.
The effects are independently provided, and the combination of the effects can be achieved by a set of structures.
It should be noted that, the multiple schemes provided in this patent include the basic schemes of itself, are independent of each other and are not restricted to each other, but they can also be combined with each other under the condition of no conflict, so as to achieve multiple effects together.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. A secondary sealing device for an expansion joint threaded pipe is characterized in that a large steel coil and a small steel coil are nested with each other,
the secondary sealing device comprises an upper ceramic graphite composite block (3) and a lower ceramic graphite composite block (5);
the upper ceramic graphite composite block (3) and the upper connecting steel structural member (4) are fixed by adopting a fixing bolt;
the lower end ceramic graphite composite block (5) and the lower end connecting steel structural member (6) are fixed by adopting a fixing bolt;
the upper end of the steel structural member (4) is connected with the lower part of the large steel coil in a welding manner;
the lower end of the small steel coil is connected with a steel structural member (6) and is welded and fixed with the upper part of the small steel coil;
a high-temperature-resistant heat-insulating cotton (2) is arranged between the upper end connecting steel structural member (4) and the lower end connecting steel structural member (6);
the upper ceramic graphite composite block (3) and the lower ceramic graphite composite block (5) are both L-shaped.
2. A secondary sealing device for an expansion joint threaded pipe according to claim 1, wherein the upper ceramic graphite composite block (3) and the lower ceramic graphite composite block (5) each comprise a plurality of segments, the upper ceramic graphite composite blocks (3) of the plurality of segments are engaged with each other by a step structure (9), and the lower ceramic graphite composite blocks (5) of the plurality of segments are engaged with each other by the step structure (9).
3. A secondary sealing device for an expansion joint threaded pipe according to claim 2, characterized in that each section of the upper ceramic graphite composite block (3) is fixed by three upper connecting steel structural members (4) through fixing bolts, and each upper connecting steel structural member (4) is fixedly connected by two fixing bolts.
4. A secondary seal for an expansion joint threaded pipe as claimed in claim 2 wherein the segments are eight segments.
5. A secondary sealing device for an expansion joint threaded pipe according to claim 1, characterized in that the upper ceramic graphite composite block (3) and the lower ceramic graphite composite block (5) are in close contact.
6. A secondary sealing device for an expansion joint threaded pipe according to claim 1, characterized in that the heat-resistant and heat-insulating cotton (2) is of an elastic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320604309.6U CN219571227U (en) | 2023-03-24 | 2023-03-24 | Secondary sealing device for expansion joint threaded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320604309.6U CN219571227U (en) | 2023-03-24 | 2023-03-24 | Secondary sealing device for expansion joint threaded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219571227U true CN219571227U (en) | 2023-08-22 |
Family
ID=87660285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320604309.6U Active CN219571227U (en) | 2023-03-24 | 2023-03-24 | Secondary sealing device for expansion joint threaded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219571227U (en) |
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2023
- 2023-03-24 CN CN202320604309.6U patent/CN219571227U/en active Active
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