CN218935683U - Plugging component suitable for elbow pipeline - Google Patents
Plugging component suitable for elbow pipeline Download PDFInfo
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- CN218935683U CN218935683U CN202223316470.8U CN202223316470U CN218935683U CN 218935683 U CN218935683 U CN 218935683U CN 202223316470 U CN202223316470 U CN 202223316470U CN 218935683 U CN218935683 U CN 218935683U
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Abstract
The utility model discloses a plugging component suitable for elbow pipelines, which comprises: the pressure-bearing seat is provided with a pressure-bearing cavity, and a protective atmosphere inlet, a protective atmosphere outlet, an elbow pipeline inlet and an elbow pipeline outlet which are respectively communicated with the pressure-bearing cavity; the sealing assembly is respectively and independently arranged at the inlet and the outlet of the elbow pipeline; the sealing assembly comprises a sealing pipe arranged on the pressure bearing seat and a sealing cover movably arranged, wherein a filling cavity is formed among the sealing pipe, the sealing cover and the pressure bearing seat and is communicated with a corresponding elbow pipeline inlet or elbow pipeline outlet; the flexible filler is arranged in the filler containing cavity, the plugging assembly can plug the joint leakage of the elbow pipeline under the condition of no production stopping, continuous production during normal production is guaranteed, unplanned production stopping is reduced, meanwhile, the operation safety is high, and plugging operation on high-temperature and inflammable medium pipelines can be completed in an online production state.
Description
Technical Field
The utility model relates to the technical field of polyester production, in particular to a plugging component suitable for elbow pipelines.
Background
Pipeline transportation is applied to various fields of production practice, and once the pipeline is put into operation, a plurality of pipelines cannot be shut down at any time, and unplanned shutdown can bring great influence to stable production of the device. In the production of polyester devices, leakage occurs in high-temperature and inflammable medium pipelines, so that great difficulty is brought to online leakage stopping work, and once leakage occurs, personnel safety is seriously endangered, and huge loss is caused. For example, in the production of polyester devices, a 120 DEG DN25 carbon steel elbow is formed at the upper and lower welding positions, if welding quality reasons appear, gas phase heating media (such as common hydrogenated terphenyl) with the temperature of 290 ℃ can be sprayed out from two welding seams of the elbow, but the process pipeline flow cannot be isolated, the occurrence of the phenomena can bring great influence to stable production of the device, if the leakage is difficult to effectively inhibit, the leakage is blocked in time, the elbow welding seams are likely to be thoroughly separated, thus causing unplanned production stoppage, meanwhile, the conventional plugging effect is poor because the cracking range of the two welding seams can reach more than 3/4 of the whole welding seams, and gas phase heating media such as hydrogenated terphenyl substances can burn or explode under specific conditions, so that the gas phase heating media are difficult to be welded at the leakage positions again.
Disclosure of Invention
The utility model aims to overcome one or more defects in the prior art, and provides a novel plugging component suitable for an elbow pipeline, which can realize plugging of a welding seam leakage position of the elbow pipeline under the condition of no production stopping, ensure continuous production during normal production, reduce unplanned production stopping, and simultaneously has high operation safety and can complete plugging operation of a high-temperature and inflammable medium pipeline in an online production state.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lost circulation assembly for an elbow conduit, the lost circulation assembly comprising:
the pressure-bearing seat is provided with a pressure-bearing cavity, and a protective atmosphere inlet, a protective atmosphere outlet, an elbow pipeline inlet and an elbow pipeline outlet which are respectively communicated with the pressure-bearing cavity;
the sealing assembly is respectively and independently arranged at the inlet and the outlet of the elbow pipeline;
the sealing assembly comprises a sealing pipe arranged on the pressure-bearing seat and a sealing cover movably arranged, wherein a filling containing cavity is formed among the sealing pipe, the sealing cover and the pressure-bearing seat and is communicated with the corresponding elbow pipeline inlet or elbow pipeline outlet;
and the flexible filler is arranged in the filler accommodating cavity.
According to some preferred aspects of the utility model, the pressure bearing seat comprises a first pressure bearing sub-seat and a second pressure bearing sub-seat, and the pressure bearing cavity, the elbow pipeline inlet and the elbow pipeline outlet are respectively formed by the first pressure bearing sub-seat and the second pressure bearing sub-seat.
According to some preferred aspects of the utility model, the pressure bearing seat is formed by welding the first pressure bearing sub-seat and the second pressure bearing sub-seat.
According to some preferred aspects of the utility model, the pressure bearing seat is arcuate.
According to some preferred aspects of the utility model, the movable arrangement is a sliding arrangement or a rotating arrangement.
According to some preferred aspects of the utility model, a portion of the closure cap is capable of extending into the closure tube and is slidably disposed relative to an inner wall of the closure tube.
According to some preferred aspects of the utility model, the seal assembly further comprises a positioning rod fixedly arranged on the pressure bearing seat, and the seal cover is sleeved on the positioning rod and can be arranged in a sliding mode or a rotating mode relative to the positioning rod.
According to some preferred aspects of the utility model, the closure assembly further comprises a locking member for locking the closure cap relative to the locating lever.
According to some preferred aspects of the utility model, the positioning rod is provided with external threads, the locking piece is a nut and is abutted against the sealing cover, and the sealing cover is provided with internal threads and is screwed with the positioning rod through threads.
According to some preferred aspects of the utility model, the flexible filler is a flexible graphite packing.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
based on the existing problem that the leakage of a welding line is difficult to leak on line for the pipeline for transporting inflammable and explosive media, particularly an elbow pipeline, the utility model innovatively enables the pipeline with the leakage of the welding line to pass through the pressure bearing seat through the inlet and the outlet, so that the leakage position of the welding line can be controlled in a pressure bearing cavity arranged on the pressure bearing seat, the sealing of the welding line can be realized only by realizing the sealing of the pressure bearing cavity, and even if the welding operation is carried out, the elbow pipeline can be replaced by the pressure bearing seat, the welding assembly without stopping production on line can be realized by matching with the inlet and the outlet of a protective atmosphere, and further, the sealing component and the flexible filler are combined, so that the micro-pores formed between the pressure bearing seat and the elbow pipeline can be effectively sealed, and the leakage of the media with the leakage of the welding line can be avoided;
realizing: 1. the plugging operation of the high-temperature and inflammable medium pipeline can be completed in an on-line production state;
2. the hidden danger of production safety can be effectively eliminated;
3. avoiding economic loss caused by unplanned production stoppage.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of an elbow conduit to which a lost circulation assembly according to an embodiment of the present utility model is applied;
FIG. 2 is a schematic cross-sectional view of a lost circulation assembly for elbow pipelines according to an embodiment of the present utility model;
FIG. 3 is a schematic illustration of the flexible filler hidden from view on the basis of FIG. 2;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is a schematic view of a plugging assembly for elbow pipelines according to an embodiment of the present utility model;
FIG. 6 is an enlarged schematic view at B in FIG. 5;
FIG. 7 is a schematic view of an end face of a pressure bearing seat according to an embodiment of the present utility model;
in the reference numerals: 1. a pressure-bearing seat; 11. a pressure-bearing cavity; 12. a protective atmosphere inlet; 13. a protective atmosphere outlet; 14. an elbow pipeline inlet; 15. an elbow pipeline outlet; 1a, a first pressure-bearing sub-seat; 1b, a second pressure-bearing sub-seat; 2. a seal assembly; 21. sealing the pipe; 22. a sealing cover; 23. a positioning rod; 24. a locking member; 3. a filler accommodation cavity; 4. a flexible filler; 5. elbow pipeline; 51. welding a seam; 52. and (5) lower welding.
Detailed Description
The present utility model will be described in detail with reference to the drawings and the detailed description, so that the above objects, features and advantages of the present utility model can be more clearly understood. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1, the plugging assembly of the present utility model is mainly suitable for elbow pipes 5, generally the elbow pipes 5 need to be connected with other pipes by welding, there are usually two welding seams, as shown in fig. 1, an upper welding seam 51 and a lower welding seam 52, and if the welding seams are very likely to leak an internal transmission medium after a period of use due to poor welding quality, for example, in the current polyester production, hydrogenated terphenyl is usually used as a heat conducting medium, and is usually transported in a gas phase state at a high temperature of about 290 ℃, the chemical substances have the possibility of burning and explosion, and if the pipes leak, the welding seams are still reinforced again by adopting a welding manner, which causes great danger, and the plugging manner in the current prior art is difficult to realize long-term plugging and difficult to realize plugging in an online production state.
According to the utility model, the pressure bearing seat is innovatively arranged, so that a pipeline with a leaked welding seam can pass through the pressure bearing seat through the inlet and the outlet, the leakage position of the welding seam can be controlled in the pressure bearing cavity arranged on the pressure bearing seat, the sealing of the welding seam can be realized only by realizing the sealing of the pressure bearing cavity, the pressure bearing seat can replace an elbow pipeline even in welding operation, the welding assembly can be realized on line without stopping production by matching with the protective atmosphere inlet and the protective atmosphere outlet, and further, the sealing assembly and the flexible filler are combined, so that micro-pores formed between the pressure bearing seat and the elbow pipeline can be effectively sealed, the leakage of a medium with the leaked welding seam is avoided, and the problems are well solved.
The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 2 to 7, the present example provides a plugging assembly for elbow pipelines, the plugging assembly comprising a pressure bearing seat 1, a seal assembly 2 and a flexible packing 4; wherein, the pressure-bearing seat 1 is provided with a pressure-bearing cavity 11, a protective atmosphere inlet 12, a protective atmosphere outlet 13, an elbow pipeline inlet 14 and an elbow pipeline outlet 15 which are respectively communicated with the pressure-bearing cavity 11;
a sealing component 2 is respectively and independently arranged at the elbow pipeline inlet 14 and the elbow pipeline outlet 15;
the sealing assembly 2 comprises a sealing pipe 21 and a sealing cover 22 which are arranged on the pressure bearing seat 1 in a movable way, a filling containing cavity 3 is formed among the sealing pipe 21, the sealing cover 22 and the pressure bearing seat 1, and the filling containing cavity 3 is communicated with a corresponding elbow pipeline inlet 14 or elbow pipeline outlet 15;
the flexible packing 4 is arranged in the packing volume 3.
In this example, the protective atmosphere inlet 12 and the protective atmosphere outlet 13 are mainly used for introducing protective gas, such as inert gas like nitrogen, into the pressure-bearing cavity 11, so that positive pressure can be maintained in the pressure-bearing cavity 11 during construction, and further leakage of gas-phase heating medium at a welding seam is reduced or even avoided, even if a small amount of leakage exists, the gas-phase heating medium is greatly diluted in the presence of a large amount of protective gas, and further safety accidents in the processing process can be well avoided. After the plugging component is installed, the protective atmosphere inlet 12 and the protective atmosphere outlet 13 can be sealed, so that secondary leakage of medium in the pressure-bearing cavity is avoided.
In this case, the elbow pipe inlet 14 and the elbow pipe outlet 15 are respectively used for allowing the elbow pipe 5 to pass through the pressure-bearing cavity 11, so that the weld joint can be accommodated in the pressure-bearing cavity 11, and subsequent sealing is facilitated.
In the actual operation process, the plugging component of the embodiment can be preset at the elbow pipeline when the production system is installed, so that the plugging component can be assembled timely when needed to plug the pipe, and the pressure bearing seat can be an integral body under the condition. Preferably, in this embodiment, the pressure bearing seat 1 is set as a split type, and is installed on site when plugging is required; specifically, the pressure-bearing seat 1 includes a first pressure-bearing sub-seat 1a and a second pressure-bearing sub-seat 1b, the pressure-bearing cavity 11, the elbow pipe inlet 14 and the elbow pipe outlet 15 are respectively formed by assembling the first pressure-bearing sub-seat 1a and the second pressure-bearing sub-seat 1b, and further, the pressure-bearing seat 1 is formed by welding the first pressure-bearing sub-seat 1a and the second pressure-bearing sub-seat 1 b.
As shown in fig. 7, the connection relation between the pressure bearing seat 1 and the first pressure bearing sub-seat 1a and the second pressure bearing sub-seat 1b is exemplarily shown, the connection relation can be half of the original pressure bearing seat, of course, the connection relation can also be divided into unequal parts, and the pressure bearing seat and the first pressure bearing sub-seat can be welded together to form a whole in actual use, and the split type arrangement is convenient for assembly on site because the elbow pipeline is difficult to detach, namely, the pressure bearing seat cannot be sleeved in from one end of the elbow pipeline; when the two are welded and assembled, the two form a pressure-bearing cavity together, and the elbow pipeline inlet 14 and the elbow pipeline outlet also form the pressure-bearing cavity together.
In this example, the pressure-bearing seat 1 is arc-shaped, and can adapt to the elbow pipeline 5, so that not only can better plugging and leaking stoppage be realized, but also materials can be saved, and when other shapes are set, for example, when the pressure-bearing seat is square, a great space occupation ratio is required, and great waste of materials is caused.
In this example, the sealing cover 22 is slidably or rotationally arranged, the sliding arrangement is that the sealing cover 22 realizes displacement in a sliding manner, the rotational arrangement can also be that the sealing cover 22 realizes linear displacement through rotary motion, so as to play a role in changing the size of the filler containing cavity 3, as shown in fig. 4, the sealing cover 22 can realize advancing or retreating along a preset direction, further, when the sealing cover 22 displaces, as shown in fig. 6, the sealing cover 22 can realize complete sealing of the filler containing cavity 3 by extruding the flexible filler 4, and in the actual operation process, when the elbow pipeline 5 comes out of the elbow pipeline outlet 15 from the pressure-bearing cavity 11 or enters the pressure-bearing cavity 11 from the elbow pipeline inlet 14, although the outer wall of the elbow pipeline 5 can be matched with the elbow pipeline outlet 15 and the elbow pipeline inlet 14 through size adjustment, gaps are difficult to be formed, in this example, through the matching arrangement of the filler containing cavity 3 and the flexible filler 4, gaps which can possibly exist can be formed through the flexible filler 4, and the flexible filler 4 can be further compacted under the effect of the sealing component 2, so that the sealing is compact, the pressure-bearing cavity 11 can be sealed, and leakage of the pressure-bearing cavity 11 can be well prevented from leaking out, and sealing the pressure-bearing cavity 11 can be sealed, and medium can be sealed, and sealed. Further, in this example, part of the sealing cover 22 can extend into the sealing tube 21 and can be slidably arranged relative to the inner wall of the sealing tube 21, the sealing cover 22 is attached to the inner wall of the sealing tube 21, the adaptability of the sealing cover and the sealing tube is improved, the sealing cover is beneficial to compacting the flexible filler 4, and the sealing performance is improved.
In this example, the sealing assembly 2 further includes a positioning rod 23 fixedly arranged on the pressure-bearing seat 1, and a locking piece 24 for locking the sealing cover 22 relative to the positioning rod 23, wherein the sealing cover 22 is sleeved on the positioning rod 23 and can be slidably or rotatably arranged relative to the positioning rod 23, so that the arrangement is convenient for an operator to operate and is beneficial to installation; further, the positioning rod 23 is formed with an external thread, the locking piece 24 is a nut and is abutted against the sealing cover 22, the sealing cover 22 is formed with an internal thread and is screwed with the positioning rod 23 through threads, so that the whole continuous holding after the sealing cover 22 extrudes the flexible filler is realized, and the disassembly or replacement can be realized when required.
In this example, the flexible filler 4 is a flexible graphite packing, which is commercially available, and is a pure graphite product which is prepared by processing natural scaly high-carbon graphite after special chemical and physical treatments, and has the excellent characteristics of softness, rebound resilience, corrosion resistance, high pressure resistance, radiation resistance, heat conduction and the like besides completely keeping the excellent characteristics of the natural scaly graphite. The flexible graphite packing in this example can be plugged into the packing cavity first, then the packing cavity is pressed tightly by moving the sealing cover, as shown in fig. 3-6, the flexible graphite packing is not only located in the packing cavity 3, but also tightly clings to the elbow pipeline 5 passing through the inside, and thus better stability and sealing are realized.
In conclusion, the plugging component can complete the plugging operation of the high-temperature and inflammable medium pipeline in an online production state, can effectively eliminate the production safety hidden trouble, and can avoid the economic loss caused by unplanned production stoppage.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A lost circulation assembly for an elbow conduit, the lost circulation assembly comprising:
the pressure-bearing seat is provided with a pressure-bearing cavity, and a protective atmosphere inlet, a protective atmosphere outlet, an elbow pipeline inlet and an elbow pipeline outlet which are respectively communicated with the pressure-bearing cavity;
the sealing assembly is respectively and independently arranged at the inlet and the outlet of the elbow pipeline;
the sealing assembly comprises a sealing pipe arranged on the pressure-bearing seat and a sealing cover movably arranged, wherein a filling containing cavity is formed among the sealing pipe, the sealing cover and the pressure-bearing seat and is communicated with the corresponding elbow pipeline inlet or elbow pipeline outlet;
and the flexible filler is arranged in the filler accommodating cavity.
2. The lost circulation assembly of claim 1, wherein the pressure bearing seat comprises a first pressure bearing sub-seat and a second pressure bearing sub-seat, and the pressure bearing chamber, the elbow pipe inlet and the elbow pipe outlet are respectively formed by the first pressure bearing sub-seat and the second pressure bearing sub-seat.
3. The lost circulation assembly for elbow pipelines according to claim 2, wherein said pressure bearing seat is formed by welding said first pressure bearing sub-seat and said second pressure bearing sub-seat.
4. A lost circulation assembly for elbow pipelines according to claim 1, wherein said pressure bearing seat is arcuate.
5. A lost circulation assembly for elbow pipelines according to claim 1, wherein said movable arrangement is a sliding arrangement or a rotating arrangement.
6. A lost circulation assembly for elbow pipelines according to claim 1, wherein a portion of said closure cap is capable of extending into said closure tube and is slidably disposed relative to the inner wall of said closure tube.
7. The lost circulation assembly of claim 6, wherein the seal assembly further comprises a positioning rod fixedly disposed on the pressure bearing seat, and the seal cover is sleeved on the positioning rod and slidably or rotatably disposed relative to the positioning rod.
8. The lost circulation assembly for elbow pipelines according to claim 7, wherein said closure assembly further comprises a locking member for locking said closure cap relative to said locating rod.
9. The lost circulation assembly of claim 8, wherein the locating rod is externally threaded, the locking member is a nut and is disposed against the closure cap, and the closure cap is internally threaded and threadably engages the locating rod.
10. A lost circulation assembly for elbow pipelines according to claim 1, wherein the flexible filler is a flexible graphite packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316470.8U CN218935683U (en) | 2022-12-09 | 2022-12-09 | Plugging component suitable for elbow pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316470.8U CN218935683U (en) | 2022-12-09 | 2022-12-09 | Plugging component suitable for elbow pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218935683U true CN218935683U (en) | 2023-04-28 |
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ID=86060627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223316470.8U Active CN218935683U (en) | 2022-12-09 | 2022-12-09 | Plugging component suitable for elbow pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218935683U (en) |
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2022
- 2022-12-09 CN CN202223316470.8U patent/CN218935683U/en active Active
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