CN2662038Y - Dual shunting compensator - Google Patents
Dual shunting compensator Download PDFInfo
- Publication number
- CN2662038Y CN2662038Y CN 200320113169 CN200320113169U CN2662038Y CN 2662038 Y CN2662038 Y CN 2662038Y CN 200320113169 CN200320113169 CN 200320113169 CN 200320113169 U CN200320113169 U CN 200320113169U CN 2662038 Y CN2662038 Y CN 2662038Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- retractable
- coal powder
- compensator
- powder conveying
- Prior art date
- 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.)
- Expired - Fee Related
Links
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- Joints Allowing Movement (AREA)
Abstract
The utility model provides a dual fractional compensator, relates to a retractable and connecting device for coal powder conveying duct, which comprises a retractable main pipe and a retractable sub-pipe plugged at both ends. A plurality of guiding grooves are arranged on the internal wall at both ends of the retractable main pipe and the guiding plate on the external wall of the retractable sub-pipe is inserted into the corresponding guiding groove. The space between the internal wall at both ends of the retractable main pipe and the external wall of the retractable sub-pipe is sealed by a gasket, a graphite packing and a gland. With the compensational device for pipe retraction in the coal powder conveying duct, the phenomena of expanding when heated and contracting when cooled can be overcome and the tension and compression stress for the coal powder conveying duct can be eliminated, which greatly improves the operational reliability of the coal powder conveying duct. The utility model has the advantages of simple structure, good flexibility and great durability, which is an ideal alternate product to compensate the phenomenon of expanding when heated and contracting in the coal powder duct and can be widely used in the field of power and coal mines.
Description
One, technical field
The utility model relates to the flexible connection set of a kind of power transportation pipe compensation.
Two, background technique
Present employed power transportation pipe slip joint has two kinds; A kind of is " the universal compensator of ball-type ", find by using, the use of can not normally stretching of this compensator, pipeline drawing crack phenomenon often takes place, after its Universal-head freely rotates, the dilaton pipe is managed institute's tension (pressure) power not on same shaft axis with flexible mother, has stoped the free play of dilaton pipe with flexible female pipe.The thick heaviness of this compensator, complex structure, internal drag is big.Second kind is " corrugated expansion joint ", and the deficiency of its maximum is to wear no resistance, and the fistulae phenomenon often takes place, and needs to twine stone rope or other measure leak stopping.
Three, summary of the invention
The utility model is in order to design a kind of compensator of simple in structure, capable of expansion and contraction, long-lived power transportation pipe.
This compensator has a flexible female pipe and refers to dilaton pipe at two ends, flexible female pipe two ends inwall has some guiding grooves, guide plate on the dilaton pipe outer wall inserts corresponding guiding groove, flexible female the pipe between two ends inwall and dilaton pipe outer wall with packing ring, graphite packing and differential sealing.The guiding groove of the flexible every end of female inner tube wall is no less than 3.
Use such compensation pipeline expansion device on power transportation pipe, the phenomenon of can effectively pipeline being expanded with heat and contract with cold absorbs, and eliminates power transportation pipe and draws (pressure) stress, has greatly improved the operational safety of power transportation pipe.This apparatus structure is simple, capable of expansion and contraction, durable in use, is the desirable substitute products that the compensation pulverized coal channel expands with heat and contract with cold, and can be widely used in the power transportation pipe on electric power, the colliery.
Four, description of drawings
Accompanying drawing 1 is the overall structure schematic representation
Accompanying drawing 2 is an A-A cross section structure schematic representation
Five, embodiment
This compensator has a flexible female pipe 1 and at two dilaton pipes 2 of both sides, flexible female pipe 1 two ends inwall has four guiding grooves 5, angle is preferably divided equally, two dilaton pipes 2 stretch on the outer wall of flexible female pipe 1 one ends and respectively are extruded with four guide plates 6, guide plate 6 is in the welding, and each guide plate 6 inserts corresponding seeking in groove 5.In order to increase the tightness between flexible female pipe 1 inwall and dilaton pipe 2 outer walls, between with packing ring 7, graphite plate dish 4 and differential 3 sealings, leave the leeway of telescopic moving back and forth of guide plate 6 in the guiding groove 5, the outer end that the binding pipeline time-division does not link the dilaton pipe gets final product.
Claims (2)
1, the double-division type compensator is a kind of flexible connection set of compensation of power transportation pipe, it is characterized in that: this compensator has a flexible female pipe (1) and is inserted in the dilaton pipe (2) at two ends, flexible female pipe (1) two ends inwall respectively has some guiding grooves (5), guide plate (6) on the dilaton pipe outer wall inserts corresponding guiding groove (5), seals with packing ring (7), graphite packing (4) and differential (3) between flexible female pipe (1) two ends inwall and dilaton pipe (2) outer wall.
2, double-division type compensator according to claim 1 is characterized in that: the guiding groove (5) of the every end of flexible female pipe (1) inwall is no less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113169 CN2662038Y (en) | 2003-10-30 | 2003-10-30 | Dual shunting compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113169 CN2662038Y (en) | 2003-10-30 | 2003-10-30 | Dual shunting compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2662038Y true CN2662038Y (en) | 2004-12-08 |
Family
ID=34344895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113169 Expired - Fee Related CN2662038Y (en) | 2003-10-30 | 2003-10-30 | Dual shunting compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2662038Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900906A (en) * | 2012-10-22 | 2013-01-30 | 路达(厦门)工业有限公司 | Quick-coupling quick-disassembling joint of pipe fitting |
| CN102922443A (en) * | 2011-08-12 | 2013-02-13 | 成都科盛石油科技有限公司 | Directional connecting sleeve facilitating accurate installation of workpiece |
| CN105946956A (en) * | 2015-03-09 | 2016-09-21 | 株式会社捷太格特 | Steering apparatus |
-
2003
- 2003-10-30 CN CN 200320113169 patent/CN2662038Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922443A (en) * | 2011-08-12 | 2013-02-13 | 成都科盛石油科技有限公司 | Directional connecting sleeve facilitating accurate installation of workpiece |
| CN102900906A (en) * | 2012-10-22 | 2013-01-30 | 路达(厦门)工业有限公司 | Quick-coupling quick-disassembling joint of pipe fitting |
| CN105946956A (en) * | 2015-03-09 | 2016-09-21 | 株式会社捷太格特 | Steering apparatus |
| CN105946956B (en) * | 2015-03-09 | 2019-12-27 | 株式会社捷太格特 | Steering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |