CN105526456A - Ultra-low temperature resistant corrugated pipe compensator - Google Patents
Ultra-low temperature resistant corrugated pipe compensator Download PDFInfo
- Publication number
- CN105526456A CN105526456A CN201610010811.9A CN201610010811A CN105526456A CN 105526456 A CN105526456 A CN 105526456A CN 201610010811 A CN201610010811 A CN 201610010811A CN 105526456 A CN105526456 A CN 105526456A
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- CN
- China
- Prior art keywords
- pipe
- wall
- outlet end
- bellows
- corrugated pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention discloses an ultra-low temperature resistant corrugated pipe compensator. The ultra-low temperature resistant corrugated pipe compensator comprises a corrugated pipe, an inlet end pipe, an outlet end pipe and a protecting casing pipe, wherein the inlet end pipe and the outlet end pipe are coaxially and fixedly connected to the two ends of the corrugated pipe; the protecting casing pipe is fixedly connected with the inner wall of the inlet end pipe; a horn mouth of the protecting casing pipe faces towards an inlet; the axial length of the protecting casing pipe is larger than the length of the corrugated pipe; the protecting casing pipe shields the inner wall of the corrugated pipe structurally to prevent the inner wall from making contact with granular materials; the protecting casing pipe extends into an inner hole of the outlet end pipe; a radial sealing structure is arranged between the inner wall of the outlet end pipe and the outer wall of the protecting casing pipe sleeved with the outlet end pipe. The ultra-low temperature resistant corrugated pipe compensator is further characterized in that reinforced connectors are formed by an annular ring arranged on the outer wall of a straight edge section of the corrugated pipe in a sleeving mode, the straight edge section of the corrugated pipe and the outer wall of the inlet end pipe as well as the annular ring, the straight edge section of the corrugated pipe and the outer wall of the outlet end pipe; the corrugated pipe is formed by multiple layers of sheets in a pressed mode; the inner wall of the protecting casing pipe is fixedly connected with a thin-walled latticed net sleeve; empty lattices of the net sleeve are filled with wear-resistant materials in a bonding mode. The ultra-low temperature resistant corrugated pipe compensator can prevent media mixed with impurities or granular media from entering the inner cavity of the corrugated pipe, and is resistant to abrasion and ultra-low temperature.
Description
Technical field
The present invention relates to a kind of pipe safety device, specifically, the present invention relates to a kind of corrugated expansion joint.
Background technique
Corrugated expansion joint is large due to compensation rate, is therefore widely used in industrial pipe network.Existing corrugated expansion joint generally comprises bellows, is coaxially fixedly connected on the entrance point pipe at bellows two ends and the sheathed casing of the horn mouth that outlet end pipe, entrance point inner tube wall are fixedly connected with towards import, between this corrugated expansion joint sheathed casing and bellows inner chamber, gap is larger, folder matter or granular medium easily enter in bellows inner chamber, affect the contraction of bellows, also just impact is normal compensates, and serious meeting damages corrugated expansion joint.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose one and folder matter or granular medium can be avoided to enter bellows inner chamber, thus the corrugated expansion joint of resistance to ultralow temperature in significant prolongation metal compensator working life.
The present invention is achieved through the following technical solutions technical goal.
The corrugated expansion joint of resistance to ultralow temperature, comprise bellows, be coaxially fixedly connected on the entrance point pipe at bellows two ends and the sheathed casing of the horn mouth that outlet end pipe, entrance point inner tube wall are fixedly connected with towards import, bellows two ends straight section difference coaxial package is on entrance point pipe, outlet end pipe outer wall, the axial length of sheathed casing than ripple pipe range, and blocks bellows inwall from structure and does not contact with particle media; Its improvements are: described sheathed casing stretches in outlet end pipe orifice, are provided with radial seal structure between the outlet end inner tube wall of fit and sheathed casing outer wall.
In said structure, described radial seal structure comprises the annulus that the cross section be fixedly connected on sheathed casing outer wall is U-shaped, the seal ring be arranged in annulus, and seal ring and outlet end inner tube wall closely cooperate.
In said structure, coaxial package ring on the outer wall of described bellows straight section, ring, bellows straight section are fixedly connected with entrance point pipe, outlet end pipe outer wall respectively, form reinforcing joint.
In said structure, described bellows is that multi-layered sheet is compressing.
In said structure, be fixedly connected with the latticed net of thin-walled at described sheathed casing inwall, fill in the space of described net, bond high-abrasive material.
In said structure, described high-abrasive material is wear-resistant ceramic mud.
The present invention compared with prior art, has following good effect:
1. sheathed casing stretches in outlet end pipe orifice, radial seal structure is provided with between the outlet end inner tube wall of fit and sheathed casing outer wall, like this, bellows inner chamber is just closed, folder matter or granular medium enter bellows inner chamber, ensure that the reliability that bellows normally works, thus significant prolongation corrugated expansion joint working life.
2. ring, bellows straight section be fixedly connected with entrance point pipe, outlet end pipe outer wall respectively adopt the fusion of welding manner, weld seam integrally making bellows and entrance point pipe, the jointing intensity of outlet end pipe improves greatly, thus solves the problem that bellows is connected with entrance point pipe, outlet end pipe under ultralow-temperature operation conditions joint easily ftractures.
3. bellows is that multi-layered sheet is compressing, effectively improves the intensity of bellows.
4. MEDIA FLOW is when sheathed casing, the contact internal walls only formed with high-abrasive material in net, not with sheathed casing contact internal walls, the only inwall of wearing and tearing high-abrasive material formation, and the inwall that high-abrasive material is formed is very wear-resisting, therefore significant prolongation sheathed casing working life, corrugated expansion joint extends more than twice working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is I part partial enlarged drawing in Fig. 1.
Fig. 3 is II part partial enlarged drawing in Fig. 1.
Embodiment
Below with reference to the accompanying drawings and the invention will be further described in conjunction with the embodiments.
The corrugated expansion joint of resistance to ultralow temperature shown in the drawings, comprise bellows 3, be coaxially fixedly connected on the entrance point pipe 1 at bellows 3 two ends and the sheathed casing 2 of the horn mouth that outlet end pipe 5, entrance point pipe 1 inwall are fixedly connected with towards import, in the present embodiment, bellows 3 is that multi-layered sheet is compressing, bellows 3 two ends straight section difference coaxial package is on entrance point pipe 1, outlet end pipe 5 outer wall, the axial length of sheathed casing 2 is longer than bellows 3, and blocks bellows 3 inwall from structure and do not contact with particle media; Sheathed casing 2 stretches in outlet end pipe 5 endoporus, radial seal structure 4 is provided with between outlet end pipe 5 inwall of fit and sheathed casing 2 outer wall, radial seal structure 4 comprises the annulus 4.1 that the cross section be fixedly connected on sheathed casing 2 outer wall is U-shaped, the seal ring 4.2 be arranged in annulus 4.1, and seal ring 4.2 and outlet end pipe 5 inwall closely cooperate.
Coaxial package ring 6 on the outer wall of bellows 3 straight section, ring 6, bellows 3 straight section are fixedly connected with entrance point pipe 1, outlet end pipe 5 outer wall respectively, form reinforcing joint.
Be fixedly connected with the latticed net 7 of thin-walled at sheathed casing 2 inwall, fill in the space of net 7, bond high-abrasive material 8, in the present embodiment, high-abrasive material 8 is wear-resistant ceramic mud.
Claims (6)
1. the corrugated expansion joint of resistance to ultralow temperature, comprise bellows (3), be coaxially fixedly connected on the entrance point pipe (1) at bellows (3) two ends and the sheathed casing (2) of the horn mouth that outlet end pipe (5), entrance point pipe (1) inwall are fixedly connected with towards import, bellows (3) two ends straight section difference coaxial package is on entrance point pipe (1), outlet end pipe (5) outer wall, the axial length of sheathed casing (2) is longer than bellows (3), and blocks bellows (3) inwall from structure and do not contact with particle media; It is characterized in that: described sheathed casing (2) stretches in outlet end pipe (5) endoporus, between outlet end pipe (5) inwall of fit and sheathed casing (2) outer wall, be provided with radial seal structure (4).
2. the corrugated expansion joint of resistance to ultralow temperature according to claim 1, it is characterized in that: described radial seal structure (4) comprises the annulus (4.1) that the cross section be fixedly connected on sheathed casing (2) outer wall is U-shaped, the seal ring (4.2) be arranged in annulus (4.1), seal ring (4.2) and outlet end pipe (5) inwall closely cooperate.
3. the corrugated expansion joint of resistance to ultralow temperature according to claim 1 and 2, it is characterized in that: coaxial package ring (6) on the outer wall of described bellows (3) straight section, ring (6), bellows (3) straight section are fixedly connected with entrance point pipe (1), outlet end pipe (5) outer wall respectively, form reinforcing joint.
4. the corrugated expansion joint of resistance to ultralow temperature according to claim 3, is characterized in that: described bellows (3) for multi-layered sheet compressing.
5. the corrugated expansion joint of resistance to ultralow temperature according to claim 4, is characterized in that: be fixedly connected with the latticed net of thin-walled (7) at described sheathed casing (2) inwall, fills, bond high-abrasive material (8) in the space of described net (7).
6. the corrugated expansion joint of resistance to ultralow temperature according to claim 5, is characterized in that: described high-abrasive material (8) is wear-resistant ceramic mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010811.9A CN105526456A (en) | 2016-01-09 | 2016-01-09 | Ultra-low temperature resistant corrugated pipe compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010811.9A CN105526456A (en) | 2016-01-09 | 2016-01-09 | Ultra-low temperature resistant corrugated pipe compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105526456A true CN105526456A (en) | 2016-04-27 |
Family
ID=55768860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010811.9A Pending CN105526456A (en) | 2016-01-09 | 2016-01-09 | Ultra-low temperature resistant corrugated pipe compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105526456A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576404A (en) * | 1983-08-04 | 1986-03-18 | Exxon Research And Engineering Co. | Bellows expansion joint |
| CN202203587U (en) * | 2011-09-08 | 2012-04-25 | 江苏宝金来管道成套设备有限公司 | Wear-resistant corrugated pipe compensator |
| CN102996964A (en) * | 2011-09-08 | 2013-03-27 | 江苏宝金来管道成套设备有限公司 | Abrasion-resisting corrugated expansion joint special for slag discharging pipeline of blast furnace and coking furnace |
| CN103542222A (en) * | 2013-10-07 | 2014-01-29 | 江苏宝金来管道成套设备有限公司 | Anti-corrosion compensator of chemical engineering exhaust gas emission system |
| CN204300599U (en) * | 2014-12-02 | 2015-04-29 | 江苏恒丰波纹管有限公司 | Be provided with the abrasionproof expansion joint of flexible dustproof structure |
| CN205479921U (en) * | 2016-01-09 | 2016-08-17 | 江苏宝金来管道成套设备有限公司 | Corrugated expansion joint of nai ultra -low temperature |
-
2016
- 2016-01-09 CN CN201610010811.9A patent/CN105526456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576404A (en) * | 1983-08-04 | 1986-03-18 | Exxon Research And Engineering Co. | Bellows expansion joint |
| CN202203587U (en) * | 2011-09-08 | 2012-04-25 | 江苏宝金来管道成套设备有限公司 | Wear-resistant corrugated pipe compensator |
| CN102996964A (en) * | 2011-09-08 | 2013-03-27 | 江苏宝金来管道成套设备有限公司 | Abrasion-resisting corrugated expansion joint special for slag discharging pipeline of blast furnace and coking furnace |
| CN103542222A (en) * | 2013-10-07 | 2014-01-29 | 江苏宝金来管道成套设备有限公司 | Anti-corrosion compensator of chemical engineering exhaust gas emission system |
| CN204300599U (en) * | 2014-12-02 | 2015-04-29 | 江苏恒丰波纹管有限公司 | Be provided with the abrasionproof expansion joint of flexible dustproof structure |
| CN205479921U (en) * | 2016-01-09 | 2016-08-17 | 江苏宝金来管道成套设备有限公司 | Corrugated expansion joint of nai ultra -low temperature |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160427 |