CN2110126U - Balance extension compensater - Google Patents
Balance extension compensater Download PDFInfo
- Publication number
- CN2110126U CN2110126U CN 91213935 CN91213935U CN2110126U CN 2110126 U CN2110126 U CN 2110126U CN 91213935 CN91213935 CN 91213935 CN 91213935 U CN91213935 U CN 91213935U CN 2110126 U CN2110126 U CN 2110126U
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- China
- Prior art keywords
- cylindrical shell
- sliding bearing
- telescopic pipe
- barrel
- piston
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Abstract
The utility model relates to a balance extension compensator. The outer circle of an expansion pipe 1 is provided with a lug boss type piston 6 and n air inlets 5, the inner walls of barrel bodies 8 and 11 are provided with sealing grooves 3 and sliding bearing grooves 10, the positions corresponding to the sealing grooves 3 are provided with a certain number of pressure injecting heads 4; the inner of the barrel body 8 is processed and provided with a piston barrel 12, and the position corresponding to the piston barrel 12 is provided with n exhaust vents 7; slide bearings 9 are put into the sliding bearing grooves 10 of the two barrel bodies 8 and 11, and the expansion pipe 1 is loaded from the open end of the barrel body 8; the barrel body 8 is fixedly connected with the barrel body 11, and sealant 2 is injected into the sealing groove 3 by the pressure injecting head 4.
Description
The utility model is a kind of interior balanced type heat distribution pipeline telescopic compensator of pressing, and belongs to the heat distribution pipeline compensation device.
Usually use compensators such as " ∩ " type, bellows, sleeve and sphere in China's heat distribution pipeline design at present, compensate pipeline because of the caused amount of deformation that expands with heat and contract with cold, but except that spherical compensator, other several compensators all can the fixed support to pipeline produces very big lateral thrust in blind plate or elbow because of the internal pressure (pressure medium during work) of pipeline.Be example with old-fashioned sleeve expansion joint now, if pipeline drift diameter DN600 millimeter, pressure medium is 1.6MPa, and then the thrust that fixed support is produced at the blind plate place is: π * 600
2* 1.6/4=452KN=45.2 ton, in order to guarantee the safe operation of support bracket fastened rigidity and assurance heat distribution pipeline, certainly will increase support bracket fastened cross sectional area, so not only increased the construction investment expense, and bring very big inconvenience to construction, because very big lateral thrust puts on the fixed support for a long time, therefore influenced support bracket fastened working life simultaneously.
Flatten in the purpose of the present utility model is to utilize balance out except that telescopic compensator because of the additional thrust that interior pressure causes, guarantee heat distribution pipeline safe operation under state of equilibrium.
Accompanying drawing is represented the main structure of balanced type telescopic compensator.
Elaborate below in conjunction with the structure of accompanying drawing to the balanced type telescopic compensator.
Marking each numeral in the accompanying drawings is expressed as follows respectively:
1, telescopic pipe, 2, can annotate sealing compound, 3, seal groove, 4, pressure injection head, 5, inlet hole, 6, the convex table type piston, 7, exhaust port, 8, cylindrical shell, 9, sliding bearing, 10, the sliding bearing groove, 11, cylindrical shell, 12, piston cylinder.
Description of drawings: the cylindrical at telescopic pipe 1 is provided with convex table type piston 6, and be provided with n inlet hole 5, at cylindrical shell 8, cylindrical shell 11 inwalls are provided with seal groove 3, sliding bearing groove 10, on corresponding position, be provided with the pressure injection head 4 of some, in cylindrical shell 8, be processed with piston cylinder 12, with piston cylinder 12 corresponding positions on be provided with n exhaust port 7.Sliding bearing 9 is put into the sliding bearing groove 10 of cylindrical shell 8 and cylindrical shell 11, telescopic pipe 1 was packed into from the beginning of cylindrical shell 8, telescopic pipe 1 is a Spielpassung with cylindrical shell 8, with sliding bearing 9 for being slidingly matched.Constitute equilibrium system by cylindrical shell inner carrier cylinder 12 and telescopic pipe 1 and convex table type piston 6 and hot channel.Cylindrical shell 8 and cylindrical shell 11 are for being fixedly connected.Can annotate sealing compound 2 at last and inject seal groove 3, realize its sealing function from pressure injection head 4.Medium enters piston cylinder 12 from the inlet hole 5 of telescopic pipe 1 during work, convex table type piston 6 face areas equate with section area in the pipeline, by fluid mechanics as can be known, act on the power and the power equal and opposite in direction that acts on the pipeline face area of telescopic pipe convex table type piston 6, direction is opposite, has kept the state of equilibrium of pipeline.Eliminated telescopic compensator owing to the additional thrust of internal pressure in end face blind plate or elbow.When heat distribution pipeline extends because of thermal expansion, promote telescopic pipe and in cylindrical shell, move (compensator shortening), when shortening when heat distribution pipeline cooling (or temperature decline), telescopic pipe is side shifting (compensator elongation) outside cylindrical shell, thereby absorb the amount of deformation of its pipeline, discharge the thermal stress of pipeline, thereby guarantee the safe operation of pipeline.When using described balanced type telescopic compensator, according to the piping design requirement, adjust the extrusion of telescopic pipe, be placed in the middle of two sliding supports, it is coaxial in the pipeline shaft axis that its shaft axis is adjusted to, and two ends and pipeline welding get final product.
In being to adopt, advantage of the present utility model flattens the weighing apparatus structure, therefore manifold pressure does not produce lateral thrust to fixed support, and energy automatic guide, can realize that band temperature, band pressure, the maintenance that do not stop production, long service life, fluid resistance are little, simple and compact for structure, easy to implement, safe and reliable to operation, have significant material-saving, save land, energy-conservation, remarkable in economical benefits.
Embodiment: nominal pressure 2.5MPa, 400 millimeters of inside nominal diameters, 250 millimeters of unidirectional compensation rates, structure as shown in drawings, telescopic pipe, cylindrical shell adopts 25 millimeters seamless steel pipes of wall thickness and Q235 sheet material welding fabrication, select two sliding bearings for use, material is a casting alloy, adopt three grades of sealings, sealing material adopts solid can annotate sealing compound (500 ℃ of heatproofs), welding procedure is adopted in being connected of cylindrical shell 8 and cylindrical shell 11, in the relevant position of per pass seal groove 12 sealing compound pressure injection heads 4 are set, in pressure injection head, establish one-way valve, can seal voluntarily behind the injection sealing compound, external form and structural dimensions: 705 millimeters of maximum outside diameters, 1500 millimeters of structure extreme lengths (telescopic pipe extend out to the greatest limit position), 1200 millimeters of minimum lengths (telescopic pipe foreshortens to the least limit position), 400 millimeters of telescopic pipe internal diameters, 900 millimeters of length, 270 millimeters of the maximum slippages of convex table type piston 6.
Claims (3)
1, a kind of balanced type telescopic compensator, by telescopic pipe (1), pressure injection head (4), can annotate sealing compound (2), sliding bearing compositions such as (9), it is characterized in that: the cylindrical at telescopic pipe (1) is provided with convex table type piston (6), and be provided with n inlet hole (5), in cylindrical shell (8), cylindrical shell (11) inwall is provided with seal groove (3), sliding bearing groove (10), on corresponding position, be provided with the pressure injection head (4) of some, in cylindrical shell (8), be processed with piston cylinder (12), be provided with n exhaust port (7) on the position accordingly with piston cylinder (12), sliding bearing (9) is arranged on cylindrical shell (8), (11) in the sliding bearing groove (10), telescopic pipe (1) was packed into from the beginning of cylindrical shell (8), and telescopic pipe (1) and cylindrical shell (8) are Spielpassung, with sliding bearing (9) for being slidingly matched.Cylindrical shell (8) and cylindrical shell (11) are for being fixedly connected.
2, dependent claims 1 described balanced type telescopic compensator is characterized in that convex table type piston (6) is connected the employing welding fabrication with telescopic pipe (1).
3, dependent claims 1 described balanced type telescopic compensator is characterized in that being provided with one-way valve in the pressure injection head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213935 CN2110126U (en) | 1991-06-22 | 1991-06-22 | Balance extension compensater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213935 CN2110126U (en) | 1991-06-22 | 1991-06-22 | Balance extension compensater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2110126U true CN2110126U (en) | 1992-07-15 |
Family
ID=4922203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91213935 Granted CN2110126U (en) | 1991-06-22 | 1991-06-22 | Balance extension compensater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2110126U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451425C (en) * | 2006-07-03 | 2009-01-14 | 徐林斌 | Expansion joint for pipeline |
| CN107575685A (en) * | 2017-09-28 | 2018-01-12 | 丁毅 | Ball joint compensator |
| CN117685432A (en) * | 2024-02-02 | 2024-03-12 | 靖江市三菱暖通机械制造有限公司 | Communication piece for petroleum machining |
-
1991
- 1991-06-22 CN CN 91213935 patent/CN2110126U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451425C (en) * | 2006-07-03 | 2009-01-14 | 徐林斌 | Expansion joint for pipeline |
| CN107575685A (en) * | 2017-09-28 | 2018-01-12 | 丁毅 | Ball joint compensator |
| CN117685432A (en) * | 2024-02-02 | 2024-03-12 | 靖江市三菱暖通机械制造有限公司 | Communication piece for petroleum machining |
| CN117685432B (en) * | 2024-02-02 | 2024-05-03 | 靖江市三菱暖通机械制造有限公司 | Communication piece for petroleum machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |