CN104948872B - A kind of heat-insulating pipeline expansion joint with elastic sealing structure - Google Patents
A kind of heat-insulating pipeline expansion joint with elastic sealing structure Download PDFInfo
- Publication number
- CN104948872B CN104948872B CN201510316102.9A CN201510316102A CN104948872B CN 104948872 B CN104948872 B CN 104948872B CN 201510316102 A CN201510316102 A CN 201510316102A CN 104948872 B CN104948872 B CN 104948872B
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- Prior art keywords
- pipe
- corrugated tube
- heat
- port
- entrance point
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/21—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for expansion-compensation devices
Abstract
The invention belongs to heat-insulating pipeline compensator compensation technique field, propose a kind of heat-insulating pipeline expansion joint with elastic sealing structure.A kind of heat-insulating pipeline expansion joint with elastic sealing structure proposed includes work corrugated tube (5), entrance point pipe (1), port of export pipe (9) and sealed end ring assemblies (2)；The outer cover of work corrugated tube (5) is equipped with protection corrugated tube (4)；It is filled with blanket type insulation (6) in the gap having between protection corrugated tube (4) and work corrugated tube (5)；The two ends of protection corrugated tube (4) extend to both sides respectively, and lay respectively at entrance point pipe (1), the outside of port of export pipe (9)；The two ends of protection corrugated tube (4) are directly connected to heat-insulating pipeline respectively, or are connected with sealed end ring assemblies (2) overlap joint on entrance point pipe (1), port of export pipe (9)；It is filled with hard insulating material (7) and pipe insulation material (8) between protection pipe and entrance point pipe (1), port of export pipe (9).The present invention effectively prevent introduced contaminants and enters, it is to avoid corrugated tube too fast corrosion, extends the service life of corrugated tube.
Description
Technical field
The invention belongs to heat-insulating pipeline compensator compensation technique field, particularly to a kind of heat-insulating pipeline expansion joint with elastic sealing structure.
Background technology
Propelling along with China's urbanization, central heating project is built on a large scale, conveying high-temperature steam, the pipeline of hot water there are variations in temperature, pipeline not only needs to carry out INSULATION DESIGN, simultaneously need to design expansion joint compensates expanding with heat and contract with cold of pipeline, to reduce pipe stress, it is ensured that the safe operation of tubing；The insulation requirement of high-temperature medium to be considered during design expansion joint, it is also expressly noted that prevent introduced contaminants infiltration, corrosion corrugated tube；Small-sized distributed air conditioner system (HVAC) needs design carry buried cooling and add hot medium pipeline, needs the elastic compensator of sealing thermal insulation to compensate.
Bellows expansion joint is largely used to heat-insulating pipeline, has varied matured product structure to meet the compensation demand of pipeline；The expansion joint major part of existing selection for pipeline needs scene insulation, and during the construction of expansion joint insulation construction, changeover joint is many, and difficulty of construction is big, is unfavorable for ensureing heat insulation effect；Compensator protection structure is difficult to seal, and introduced contaminants is easily accessible corrugated tube, causes corrosion failure.
Summary of the invention
For solving above-mentioned technical problem, the purpose of the present invention is to propose to a kind of heat-insulating pipeline expansion joint with elastic sealing structure.
Adopt the following technical scheme that for completing the foregoing invention purpose present invention
A kind of heat-insulating pipeline expansion joint with elastic sealing structure, described expansion joint includes work corrugated tube, entrance point pipe, port of export pipe and sealed end ring assemblies；Described entrance point pipe, port of export pipe are connected to the two ends of described work corrugated tube, and are connected with heat-insulating pipeline respectively；Described sealed end ring assemblies is symmetrically arranged two sets；Described sealed end ring assemblies includes sealing end ring and annular riser；Two sealing end ring are nested with respectively on described entrance point pipe, port of export pipe, and are connected firmly with described entrance point pipe, port of export pipe by annular riser respectively；The outer cover of described work corrugated tube is equipped with protection corrugated tube；Between described protection corrugated tube and work corrugated tube, there is gap, and be filled with blanket type insulation in described gap；The two ends of described protection corrugated tube extend to both sides respectively, and lay respectively at outside formation entrance point pipe, the protection pipe of port of export pipe of entrance point pipe, port of export pipe；The two ends of described protection corrugated tube are directly connected to heat-insulating pipeline respectively; or; the two ends of described protection corrugated tube overlap with the sealed end ring assemblies on entrance point pipe, port of export pipe respectively and are connected; constitute the elastic sealing structure of expansion joint; ensure compensator and extraneous sealing effectiveness; avoid introduced contaminants to enter, cause corrosion；It is filled with hard insulating material and pipe insulation material between described protection pipe and entrance point pipe, port of export pipe；Described hard insulating material is between blanket type insulation and pipe insulation material, and described hard insulating material and described blanket type insulation collectively form the composite heat-insulating layer of expansion joint, work corrugated tube and heat-insulating pipeline is carried out insulation and compensates.
Described protection corrugated tube is rubber bellows.
Described protection corrugated tube is polyfluortetraethylene pipe or pvc pipe, and polyfluortetraethylene pipe or the pvc pipe part corresponding with work corrugated tube are corrugated tube.
Described blanket type insulation is glass wool product or asbestos product or mineral wool goods.
Described hard insulating material is silicate product or foam glass or poly-isocyanurate.
Described pipe insulation material is silicate product or foam glass or poly-isocyanurate.
A kind of heat-insulating pipeline expansion joint with elastic sealing structure that the present invention proposes, the outside composite heat-insulating layer insulation construction as expansion joint using blanket type insulation and hard insulating material composition of expansion joint, both the temperature movement having met heat-insulating pipeline compensates, and has reached again the insulation of body effect of work corrugated tube；The outside of insulation construction uses rubber hose or polyfluortetraethylene pipe to carry out elastic packing protection, effectively prevent introduced contaminants and enter, it is to avoid the too fast corrosion of corrugated tube, extends the service life of corrugated tube；Expansion joint two ends only need to be docked with pipeline, and the direct transition of insulation construction at two ends connects, and not only reduces in-site installation construction workload, and advantageously ensures that the heat insulation effect of compensator and pipeline docking site.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure: 1, entrance point pipe, 2, sealed end ring assemblies, 3, sealing strip, 4, protection corrugated tube 5, work corrugated tube, 6, blanket type insulation, 7, hard insulating material, 8, pipe insulation material, 9, port of export pipe.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the present invention is illustrated:
As it is shown in figure 1, a kind of heat-insulating pipeline expansion joint with elastic sealing structure, described expansion joint includes work corrugated tube 5, entrance point pipe 1, port of export pipe 9 and sealed end ring assemblies 2；Described entrance point pipe 1, port of export pipe 9 are connected to the two ends of described work corrugated tube 5, and are connected with heat-insulating pipeline respectively；Described sealed end ring assemblies 2 is symmetrically arranged two sets；Described sealed end ring assemblies 2 includes sealing end ring and annular riser；Two sealing end ring are nested with respectively on described entrance point pipe 1, port of export pipe 9, and are connected firmly with described entrance point pipe 1, port of export pipe 9 by annular riser respectively；The outer cover of described work corrugated tube 5 is equipped with protection corrugated tube 4；In this embodiment, described protection corrugated tube 4 is rubber bellows；Between described protection corrugated tube 4 and work corrugated tube 5, there is gap, and in described gap, be filled with blanket type insulation 6；The two ends of described protection corrugated tube 4 extend to both sides respectively, and lay respectively at outside formation entrance point pipe, the protection pipe of port of export pipe of entrance point pipe 1, port of export pipe 9；The two ends of described protection corrugated tube 4 overlap with the sealed end ring assemblies 2 on entrance point pipe 1, port of export pipe 9 respectively and are connected; and sealing strip 3 is set between entrance point pipe 1, port of export pipe 9 and sealed end ring assemblies 2; constitute the elastic sealing structure of expansion joint; ensure compensator and extraneous sealing effectiveness; avoid introduced contaminants to enter, cause corrosion；Hard insulating material 7 and pipe insulation material 8 it is separately filled with between described protection pipe and entrance point pipe 1, port of export pipe 9；Described hard insulating material 7 is between blanket type insulation 6 and pipe insulation material 8, and described hard insulating material 7 and described blanket type insulation 6 collectively form the composite heat-insulating layer of expansion joint, work corrugated tube and heat-insulating pipeline is carried out insulation and compensates.
Fig. 2 provides the structural representation of the embodiment of the present invention 2; the agent structure of this embodiment is with embodiment 1; in this embodiment; the two ends of described protection corrugated tube 4 are directly connected to heat-insulating pipeline respectively; described protection corrugated tube 4 is polyfluortetraethylene pipe, and the polyfluortetraethylene pipe part corresponding with work corrugated tube is corrugated tube；This embodiment is applicable to heat-insulating pipeline and uses the situation of jacket pipe.
Described blanket type insulation is glass wool product or asbestos product or mineral wool goods.
Described hard insulating material is silicate product or foam glass or poly-isocyanurate.
Described pipe insulation material is silicate product or foam glass or poly-isocyanurate.
Claims (3)
1. having a heat-insulating pipeline expansion joint for elastic sealing structure, described expansion joint includes work corrugated tube (5), entrance point pipe (1), port of export pipe (9) and sealed end ring assemblies (2)；Described entrance point pipe (1), port of export pipe (9) are connected to the two ends of described work corrugated tube (5), and are connected with heat-insulating pipeline respectively；Described sealed end ring assemblies (2) is symmetrically arranged two sets；Described sealed end ring assemblies (2) includes sealing end ring and annular riser；Two sealing end ring are nested with respectively on described entrance point pipe (1), port of export pipe (9), and are connected firmly with described entrance point pipe (1), port of export pipe (9) by annular riser respectively；It is characterized in that: the outer cover of described work corrugated tube (5) is equipped with protection corrugated tube (4)；Between described protection corrugated tube (4) and work corrugated tube (5), there is gap, and in described gap, be filled with blanket type insulation (6)；The two ends of described protection corrugated tube (4) extend to both sides respectively, and lay respectively at outside formation entrance point pipe, the protection pipe of port of export pipe of entrance point pipe (1), port of export pipe (9)；The two ends of described protection corrugated tube (4) are directly connected to heat-insulating pipeline respectively；Or; the two ends of described protection corrugated tube (4) overlap with the sealed end ring assemblies (2) on entrance point pipe (1), port of export pipe (9) respectively and are connected, and constitute the elastic sealing structure of expansion joint, it is ensured that compensator and extraneous sealing effectiveness; avoid introduced contaminants to enter, cause corrosion；Hard insulating material (7) and pipe insulation material (8) it is filled with between described protection pipe and entrance point pipe (1), port of export pipe (9)；Described hard insulating material (7) is positioned between blanket type insulation (6) and pipe insulation material (8), described hard insulating material (7) and described blanket type insulation (6) collectively form the composite heat-insulating layer of expansion joint, work corrugated tube and heat-insulating pipeline are carried out insulation and compensates.
A kind of heat-insulating pipeline expansion joint with elastic sealing structure the most according to claim 1, it is characterised in that: described protection corrugated tube (4) is rubber bellows.
A kind of heat-insulating pipeline expansion joint with elastic sealing structure the most according to claim 1; it is characterized in that: described protection corrugated tube (4) is polyfluortetraethylene pipe or pvc pipe, and polyfluortetraethylene pipe or the pvc pipe part corresponding with work corrugated tube are corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316102.9A CN104948872B (en) | 2015-06-11 | 2015-06-11 | A kind of heat-insulating pipeline expansion joint with elastic sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316102.9A CN104948872B (en) | 2015-06-11 | 2015-06-11 | A kind of heat-insulating pipeline expansion joint with elastic sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948872A CN104948872A (en) | 2015-09-30 |
| CN104948872B true CN104948872B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510316102.9A Active CN104948872B (en) | 2015-06-11 | 2015-06-11 | A kind of heat-insulating pipeline expansion joint with elastic sealing structure |
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| CN (1) | CN104948872B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889688A (en) * | 2016-06-16 | 2016-08-24 | 江苏扬光机械制造有限公司 | External pressure axial corrosion-prevention and heat-insulation type direct burial bellows expansion joint |
| CN106394939B (en) * | 2016-09-22 | 2018-11-16 | 北京空间飞行器总体设计部 | For compensating the vacuum sealing device and installation method of Optical devices precision offset |
| CN107883106A (en) * | 2017-12-15 | 2018-04-06 | 马鞍山市飞达波纹管制造有限公司 | A kind of metal compensator |
| CN108843882A (en) * | 2018-07-09 | 2018-11-20 | 湖北新冶钢特种钢管有限公司 | Compensator leak-proof device, square type and straight barrel type FlexbleJoint |
| RU189884U1 (en) * | 2018-10-22 | 2019-06-07 | АО "Владимирский завод металлорукавов" | BELLOW COMPENSATOR |
| CN109695795B (en) * | 2019-02-14 | 2019-11-01 | 浙江中控太阳能技术有限公司 | A kind of thermal expansion pipeline attemperator filled automatically |
| CN110307432B (en) * | 2019-07-30 | 2021-04-13 | 江苏亚杏防腐科技有限公司 | Corrugated expansion joint |
| CN114542842A (en) * | 2022-01-17 | 2022-05-27 | 江苏同方机械制造有限公司 | Double-isolation high-temperature-resistant metal corrugated expansion joint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173892Y (en) * | 1993-10-07 | 1994-08-10 | 青岛浮山钢管防腐保温厂 | Full-embedded corrosion-resistant and thermal insulation multilayer corrugated expansion joint |
| CN102278562A (en) * | 2011-05-29 | 2011-12-14 | 秦皇岛北方管业有限公司 | Direct burial type heat-preservation antiseptic expansion joint |
| CN103867844A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way external pressure bellows compensator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9313419D0 (en) * | 1993-06-29 | 1993-08-11 | Wes Technology Inc | Bellows expansion joint |
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2015
- 2015-06-11 CN CN201510316102.9A patent/CN104948872B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173892Y (en) * | 1993-10-07 | 1994-08-10 | 青岛浮山钢管防腐保温厂 | Full-embedded corrosion-resistant and thermal insulation multilayer corrugated expansion joint |
| CN102278562A (en) * | 2011-05-29 | 2011-12-14 | 秦皇岛北方管业有限公司 | Direct burial type heat-preservation antiseptic expansion joint |
| CN103867844A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way external pressure bellows compensator |
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| CN104948872A (en) | 2015-09-30 |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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