CN201764190U - Waterproof and dustproof corrugated pipe compensator - Google Patents
Waterproof and dustproof corrugated pipe compensator Download PDFInfo
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- CN201764190U CN201764190U CN2010205213069U CN201020521306U CN201764190U CN 201764190 U CN201764190 U CN 201764190U CN 2010205213069 U CN2010205213069 U CN 2010205213069U CN 201020521306 U CN201020521306 U CN 201020521306U CN 201764190 U CN201764190 U CN 201764190U
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- expansion joint
- corrugated expansion
- water proof
- compensator
- dust proof
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Abstract
The utility model provides a waterproof and dustproof corrugated pipe compensator, comprising a corrugated pipe, an end connection pipe, a guide pipe, a lug and a shipping pull rod, and further comprising a gasket plate which is arranged on the internal surface of the end connection pipe where the liquid is passed through firstly and is contacted with one end of the guide pipe, two ore more retainer rings which are provided with a predetermined distance therebetween and are arranged between the other end of the guide pipe and the internal surface of the end connection pipe where the liquid is passed through finally, a sealing ring which is arranged between the two or more retainer rings, wherein the sealing ring and the two or more retainer rings are tightly contacted with the internal surface of the end connection pipe where the liquid is passed through finally. The waterproof and dustproof corrugated pipe compensator provided by the utility model can be applied to poor environmental condition, can be used for preventing water and dust and protecting the corrugated pipe from corrosion of deleterious medium, and is characterized in that the service life is long, the transportation and installation are convenient and the on-line repairing work of leakage compensator can be completed so that the compensator which is repaired has waterproof and dustproof properties.
Description
Technical field
The utility model relates to pipeline expansion compensation device, more particularly, relates to a kind of water proof and dust proof corrugated expansion joint.
Background technique
Compensator is also referred to as expansion bend or expansion joint.It is a kind of pipeline fittings that plays the thermal compensation effect, can compensate the thermal stretching of pipeline, thereby reduces the stress and the active force that acts on valve member or the supporting structure of tube wall.The compensator that adopts on the heat supply pipeline mainly contains nature compensation, square-shaped joints, corrugated expansion joint, sleeve expansion joint and spherical compensator etc.
The modern industry pipe-line system adopts metal corrugation compensator to absorb thermal walking usually.Metal corrugation compensator is the industrial pipeline vitals, is the key components of guaranteeing the normal operation of pipe-line system.For example, concerning iron and steel metallurgy enterprise, various pipelines have constituted the main transport section of its technology.These pipelines are being undertaken the task of carrying such as inflammable and explosive high temperature media such as coal gas as the key industry artery of iron and steel metallurgy enterprise.In order to absorb of the thermal walking of these pipelines, just a plurality of corrugated expansion joints must be set in these pipelines because of carrying high temperature media to produce.
Yet, owing to the reasons such as working life, design selection, workmanship and corrosion of corrugated expansion joint itself, compensator takes place early than being responsible for the phenomenon that damage occurs and leak through regular meeting.In addition, for using at the pipeline (for example, the cleaning shaft of iron works) in the bigger place of flue dust or humidity ratio or carrying the stronger ducted corrugated expansion joint of corrosivity, because its work under bad environment, corrugated expansion joint is easier to be corroded.
In a single day corrugated expansion joint corrodes, generally speaking, have only the processing method of changing compensator and leak stopping.If the replacing compensator then needs to suspend the transportation of pipeline, change compensators and do not satisfy the requirements but stop production in a lot of situations, especially coal gas is responsible for and is stopped the supple of gas or steam that to change almost be impossible.In addition, also can adopt binder to cohere leak stopping and keep in repair corrugated expansion joint, yet this method generally can only be kept the time of some months, along with the distortion of the aging and compensator of binder, the leak leakage of can coming unstuck again again.And, if leak, then can produce greatly potential safety hazard such as pipeline or the corrugated expansion joint of carrying coal gas.As seen, the safety reliability of corrugated expansion joint operation is most important to production safety, device security and personal security.
In sum, need badly and a kind ofly can be applied in the rugged environment and the long corrugated expansion joint that is convenient for changing simultaneously of life-span.
The model utility content
At the problems referred to above that prior art exists, one side of the present utility model provide a kind of can water proof and dust proof and can realize water proof and dust proof corrugated expansion joint that the corrugated expansion joint that takes place to leak is carried out online reparation.
The utility model provides a kind of water proof and dust proof corrugated expansion joint, described water proof and dust proof FlexbleJoint is except that comprising bellows, pipe nipple, honeycomb duct, otic placode, shipment pull bar, also comprise: washer plate, be arranged on the internal surface of the pipe nipple that fluid passes through at first, and with an end in contact of honeycomb duct; Two or more back-up rings predetermined spacing is arranged each other are arranged between the internal surface of the outer surface of the other end of honeycomb duct and the pipe nipple that fluid passes through at last; Seal ring is arranged between described two or more back-up ring, and the internal surface of the pipe nipple that seal ring and described two or more back-up ring all pass through at last with fluid closely contacts.
Can be circular compensator or rectangle compensator according to water proof and dust proof corrugated expansion joint of the present utility model.Here, the lobe number of described circular compensator can be 2 or 3.
According to water proof and dust proof corrugated expansion joint of the present utility model, washer plate can be the anti-impact corrosion material, and back-up ring can be metal material.
According to water proof and dust proof corrugated expansion joint of the present utility model, described seal ring can be formed by ceramic fiber.Here, the decrement of the ceramic fiber of formation seal ring can be 20% to 60%.Preferably, described seal ring can be formed by asbestos packing, and the decrement of the asbestos packing of formation seal ring can be 20% to 60%.
According to water proof and dust proof corrugated expansion joint of the present utility model, the quantity of described bellows can be two or more, the quantity of described pipe nipple is Duoed 1 than the quantity of bellows, and the two ends of any one bellows in described two or more bellows all are connected with pipe nipple, and described water proof and dust proof corrugated expansion joint only has a honeycomb duct.
Compare with traditional corrugated expansion joint, water proof and dust proof corrugated expansion joint of the present utility model has the following advantages:
(1) can distinguish, therefore, be convenient to transportation and install, and can realize online reparation, thereby having avoided stopping production repairs the variety of issue that compensator brings, and can make the compensator after the online reparation have the characteristics of water proof and dust proof the leakage compensation device.
(2) because water proof and dust proof corrugated expansion joint of the present utility model has dust and water proof apparatus; make it (for example can be applicable to rugged environment; can be applicable to the pipeline in the bigger place of flue dust or humidity ratio or carry in the stronger pipeline of corrosivity); and can protect bellows not to be subjected to the corrosion of hazardous medium, thereby prolonged the life-span.
Description of drawings
Fig. 1 shows the schematic representation according to the water proof and dust proof corrugated expansion joint of the utility model exemplary embodiment.
Fig. 2 show Fig. 1's " I " part local enlarged diagram.
Fig. 3 shows the plan view according to the water proof and dust proof corrugated expansion joint of another exemplary embodiment of the utility model.
Fig. 4 shows the partial schematic diagram of the corrugated expansion joint that leakage takes place.
Fig. 5 shows the schematic representation that uses another exemplary embodiment of the present utility model to come the corrugated expansion joint of online reparation leakage.
Embodiment
Hereinafter, will describe in detail in conjunction with the accompanying drawings according to exemplary embodiment of the present utility model.In the accompanying drawings, identical label is represented identical parts all the time.For clear, can suitably exaggerate or dwindle accompanying drawing.
Fig. 1 shows the schematic representation according to the water proof and dust proof corrugated expansion joint of the utility model exemplary embodiment.
As shown in Figure 1, according to the utility model exemplary embodiment, the water proof and dust proof corrugated expansion joint can comprise: bellows 1, pipe nipple 2, honeycomb duct 3, otic placode 4, shipment pull bar 5, washer plate 6, back-up ring 7 and seal ring 8.
Bellows 1 is to realize that compensator absorbs the core component of thermal walking.Pipe nipple 2 is connected to the two ends of bellows 1.Honeycomb duct 3 is formed on the inside of bellows 1 and pipe nipple 2, and the medium that is transferred can flow in honeycomb duct 3 along direction shown in the arrow.Otic placode 4 is arranged on the pipe nipple 2, and otic placode 4 is provided with tapped hole.Shipment pull bar 5, its end is formed with screw thread, is installed in the tapped hole of otic placode 4, can fix the shipment pull bar by nut then, with at fixing single-lobe corrugated expansion joint of when transportation.
Here, the material of bellows 1 can be selected corresponding resistant material according to the medium of the fluid that main pipe transported.For example, bellows 1 can be stainless steel, preferably, when the flowing medium of carrying when main pipe is coal gas, can adopt corrosion resistance 254SMo steel preferably.
Fig. 2 show Fig. 1's " I " part local enlarged diagram.
As depicted in figs. 1 and 2, washer plate 6 is arranged on the internal surface of the pipe nipple 2 that fluid passes through at first, and with an end in contact of honeycomb duct 3, even to guarantee the distance that is formed between honeycomb duct 3 and the bellows 1.Washer plate 6 is for having the toroidal of predetermined thickness.The material of washer plate 6 has the anti-impact corrosion material to form, and for example, can be metal.
Back-up ring 7 can be formed on the whole outer surface of honeycomb duct 3 by the mode of welding, and the internal surface of the pipe nipple 2 that passes through at last with fluid contacts.In addition, the honeycomb duct 3 that will be provided with for convenience back-up ring 7 is installed in the pipe nipple 2, and the height of back-up ring 7 can be slightly less than the height in the slit of formation between the pipe nipple 2 that honeycomb duct 3 and fluid pass through at last.The quantity of back-up ring 7 is two or more, and they have predetermined spacing each other, and preferably, the quantity of back-up ring 7 can be 3.The material of back-up ring 7 can be a metal.In addition, back-up ring 7 also can be formed on the whole outer surface of honeycomb duct 3 by the mode of casting.
Specifically, in according to embodiment of the present utility model, constituted dust and water proof apparatus, thereby had functions of waterproof and dustproof according to water proof and dust proof corrugated expansion joint of the present utility model by pipe nipple 2, honeycomb duct 3, washer plate 6, back-up ring 7 and seal ring 8.
In addition, back-up ring 7 and seal ring 8 can adopt following method to assemble: the honeycomb duct of making 3 is polished smooth, then, two or more back-up rings are installed by predetermined spacing, spot welding, fixing.Ceramic fiber is wrapped in the space that is formed between per two adjacent in described two or more back-up ring, and filling the ceramic fiber decrement between pipe nipple 2 and the honeycomb duct 3 is 50%.At last, honeycomb duct 3 is inserted expansion joint inside.
Fig. 3 shows the schematic representation according to the water proof and dust proof corrugated expansion joint of another exemplary embodiment of the utility model.Figure 3 shows that it comprises 4 lobes according to rectangle FlexbleJoint of the present utility model.The rectangle FlexbleJoint is mainly used in rectangular duct.
Fig. 4 shows the partial schematic diagram of the corrugated expansion joint that leakage takes place.Fig. 5 shows the schematic representation that uses another exemplary embodiment of the present utility model to come the corrugated expansion joint of online reparation leakage.
As shown in Figure 4, the original corrugated expansion joint 10 that is formed in the main pipe 9 of carrying coal gas leaks.In order not stop to carry coal gas, we adopt the corrugated expansion joint that comes online reparation to leak according to another exemplary embodiment of the present utility model.As shown in Figure 5, the split FlexbleJoint according to the another exemplary embodiment of the utility model comprises two corrugated expansion joint unit.Described two corrugated expansion joint units shareds are located at the pipe nipple in the middle of them.Because the flowing medium here is a coal gas; so in order to prevent in the process that the split FlexbleJoint is coated to the corrugated expansion joint 10 that leakage takes place; because of welding sets off an explosion, need feed and discharge shielding gas by gas atmosphere inlet 11 and the shielding gas outlet 12 that is arranged on the shared pipe nipple.Here, adopt nitrogen as shielding gas.
In sum, adopt the split design according to water proof and dust proof corrugated expansion joint of the present utility model, be convenient to transportation and installation, and can realize online reparation to the leakage compensation device, repair the variety of issue that compensator brings thereby having avoided stops production, and can make the compensator after the online reparation have the characteristics of water proof and dust proof.Has dust and water proof apparatus according to water proof and dust proof corrugated expansion joint of the present utility model; make it (for example can be applicable to rugged environment; can be applicable to the pipeline in the big place of flue dust or humidity ratio or carry in the stronger pipeline of corrosivity); and can protect bellows not to be subjected to the corrosion of hazardous medium, thereby prolonged the life-span.
Although described the utility model in detail above in conjunction with exemplary embodiment, it will be understood by a person skilled in the art that under the situation that does not break away from spirit and scope defined by the claims, can carry out various changes and modifications.
Claims (9)
1. a water proof and dust proof corrugated expansion joint comprises bellows, pipe nipple, honeycomb duct, otic placode, shipment pull bar, it is characterized in that, also comprises: washer plate, be arranged on the internal surface of the pipe nipple that fluid passes through at first, and with an end in contact of honeycomb duct; Two or more back-up rings predetermined spacing is arranged each other are arranged between the internal surface of the outer surface of the other end of honeycomb duct and the pipe nipple that fluid passes through at last; Seal ring is arranged between described two or more back-up ring, and the internal surface of the pipe nipple that seal ring and described two or more back-up ring all pass through at last with fluid closely contacts.
2. water proof and dust proof corrugated expansion joint as claimed in claim 1 is characterized in that, described water proof and dust proof corrugated expansion joint is circular compensator or rectangle compensator.
3. water proof and dust proof corrugated expansion joint as claimed in claim 2 is characterized in that, the lobe number of described circular compensator is 2 or 3.
4. water proof and dust proof corrugated expansion joint as claimed in claim 1 is characterized in that, washer plate is the anti-impact corrosion material, and back-up ring is a metal material.
5. water proof and dust proof corrugated expansion joint as claimed in claim 1 is characterized in that described seal ring is formed by ceramic fiber.
6. water proof and dust proof corrugated expansion joint as claimed in claim 5 is characterized in that, the decrement that forms the ceramic fiber of seal ring is 20% to 60%.
7. water proof and dust proof corrugated expansion joint as claimed in claim 5 is characterized in that described seal ring is formed by asbestos packing.
8. water proof and dust proof corrugated expansion joint as claimed in claim 7 is characterized in that, the decrement that forms the asbestos packing of seal ring is 20% to 60%.
9. as any described water proof and dust proof corrugated expansion joint in the claim 1 to 8, it is characterized in that, the quantity of described bellows is two or more, the quantity of described pipe nipple is Duoed 1 than the quantity of bellows, and the two ends of any one bellows in described two or more bellows all are connected with pipe nipple, and described water proof and dust proof corrugated expansion joint only has a honeycomb duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205213069U CN201764190U (en) | 2010-09-08 | 2010-09-08 | Waterproof and dustproof corrugated pipe compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205213069U CN201764190U (en) | 2010-09-08 | 2010-09-08 | Waterproof and dustproof corrugated pipe compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764190U true CN201764190U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205213069U Expired - Fee Related CN201764190U (en) | 2010-09-08 | 2010-09-08 | Waterproof and dustproof corrugated pipe compensator |
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|---|---|
| CN (1) | CN201764190U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537578A (en) * | 2011-12-29 | 2012-07-04 | 大连益多管道有限公司 | Corrugated expansion joint |
| CN103398260A (en) * | 2013-06-06 | 2013-11-20 | 江苏鑫晟波纹管有限公司 | Novel polytetrafluoroethylene expansion joint |
| CN106931265A (en) * | 2015-12-31 | 2017-07-07 | 江苏晨光波纹管有限公司 | Ultralow temperature combines corrugated expansion joint |
| CN109630678A (en) * | 2018-12-29 | 2019-04-16 | 航天神洁(北京)科技发展有限公司 | A kind of high temperature dynamic sealing device for flammable explosion hazard gases |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
-
2010
- 2010-09-08 CN CN2010205213069U patent/CN201764190U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537578A (en) * | 2011-12-29 | 2012-07-04 | 大连益多管道有限公司 | Corrugated expansion joint |
| CN103398260A (en) * | 2013-06-06 | 2013-11-20 | 江苏鑫晟波纹管有限公司 | Novel polytetrafluoroethylene expansion joint |
| CN106931265A (en) * | 2015-12-31 | 2017-07-07 | 江苏晨光波纹管有限公司 | Ultralow temperature combines corrugated expansion joint |
| CN109630678A (en) * | 2018-12-29 | 2019-04-16 | 航天神洁(北京)科技发展有限公司 | A kind of high temperature dynamic sealing device for flammable explosion hazard gases |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20160908 |