CN2921525Y - Non-resistance rotary joint compensator - Google Patents
Non-resistance rotary joint compensator Download PDFInfo
- Publication number
- CN2921525Y CN2921525Y CN 200620104997 CN200620104997U CN2921525Y CN 2921525 Y CN2921525 Y CN 2921525Y CN 200620104997 CN200620104997 CN 200620104997 CN 200620104997 U CN200620104997 U CN 200620104997U CN 2921525 Y CN2921525 Y CN 2921525Y
- Authority
- CN
- China
- Prior art keywords
- rotary joint
- seamless
- main flange
- seal ring
- flange
- 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
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Abstract
A non-resistance rotary joint compensator comprises a joint pipe and a seamless connection pipe, which is characterized in that one end of bigger inner diameter of the joint pipe is connected with one end of the seamless connection pipe, a mechanic airproof ring is arranged between of inner circular plane of the main flange and the external circular plane of the seamless connection pipe, and a deformable high-temperature airproof ring on one end of the mechanic airproof ring and pressed on the external circular plane of the seamless connection pipe by the main flange and a press flange. The non-resistance rotary joint compensator adopts the seamless steel pipe to compensate expansion and contraction of the connection pipe along the axes in a sling way, and adopts a constant operation. The airproof leakage resistance is prevented by screwing double-head bolt, which can not bring loss for supply and demand sides of heat media, furthermore has the advantages of convenient maintenance and nearly zero preservation cost.
Description
Technical field
The utility model relates to a kind of pipeline connecting device, and particularly a kind of hot duct connects uses compensation device.
Background technique
At present in the concentrated supply of heating in the city engineering, a large amount of method for directly burying that adopt apply heat distribution pipeline, its thermal compensation is to finish by the stainless steel ripple joint of stainless steel ripple device, and stainless steel ripple joint is because of being subjected to the restriction of manufacturing process and expansion counter-force, because of its wall thickness thinner, install and when using, careless slightlyly just a series of problems can occur.Arc scratch ripple joint during as the welding of compensator and pipeline group is removed during installation or to regulate its retaining screw improper, superpressure during pressure test, and the pressure medium fluctuation exceeds standard etc. during use, all might make its breakage, causes the heating power dielectric leakage.Even if normal mounting is used, also be subjected to the effect of alternating stress for a long time, and easily produce tired corrupted because of it.Therefore the connection compensator weak link of hot duct is badly in need of a kind of conforming and is changed long-lived heat pipe connection compensator.
Summary of the invention
Technical goal of the present utility model is that a kind of new heating pad pipe of design connects compensator, and a kind of compensator that can overcome the existing existing defective of stainless steel ripple compensator reaches the variation that conforms, and long-lived heat pipe connects compensator.
The utility model designed scheme is: the non-resistance rotary joint, it comprises adaptor tube and seamless adapter, it is characterized in that adaptor tube large diameter one end is connected with an end of seamless adapter, establish mechanical seal ring between the inner ring surface of main flange and the outer ring surface of seamless adapter, the end of mechanical seal ring one is established by main flange and supported flange and is overlayed deformable elevated-temperature seal ring at seamless adapter outer ring surface.
The compensation of expanding with heat and contract with cold that this non-resistance rotary joint adopts the method for seamless steel pipe sliding surface slip vertically to take over, and select for use identical with pipe workpiece quality, wall ratio is taken over the weldering of wall thickness 2mm roll of steel plate and is done housing, as long as guarantee fabricating quality, there is not potential safety hazard when installing and using, prolong working life, this compensator only is the frictional force of steel pipe and steel loop plastic seal interannular to the thrust of two end supports, this frictional force is far smaller than the corrugated stainless steel tubing compensator of identical compensation rate, and this power is with respect to the pipeline thermal expansion force, almost can ignore, therefore pipeline adopts this compensator can reduce engineering cost greatly, shortens the construction time.In a single day traditional stainless steel ripple compensator goes wrong, have only and out of servicely completely just can change maintenance, and this compensator can adopt the row of not stopping transport, can adopt the method for tightening stud bolt to seal leak-stopping, cause damage so not only can for the both sides of supply and demand of thermal medium, and easy to maintenance, maintenance cost is almost nil.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
The basic structure of non-resistance rotary joint as shown in Figure 1.This compensator is in order to replacing traditional stainless steel ripple device, expands with heat and contract with cold owing to environmental change produces between taking over, and makes that thermal medium does not leak between the pipe joint.This compensator is located between adaptor tube 1 and the seamless adapter 8, and at the outer surface of large diameter one end of adaptor tube and seamless adapter 8 front ends fit mutually, one is enclosed within the outer steel pipe ring 4 of seamless adapter 8, one end and adaptor tube 1 Joint, the other end and main flange 5 Joints.The inner ring surface that main flange 5 is adjacent to seamless adapter 8 is established mechanical seal ring 11, is provided with the deformable elevated-temperature seal ring 9 of being close to seamless adapter 8 between main flange 5 and the supported flange 7.Main flange 5 is tightened up by stud bolt 6 with supported flange 7 peripheries.The outer ring surface of the seamless adapter 8 between adaptor tube 1 and main flange 5 is provided with spacing fixedly steel loop 3, at adaptor tube 1 and fixedly between the steel loop 3 and fixedly establishing rolling steel balls 2 between steel loop 3 and the main flange 5.The parallel anti-slip ring 10 that makes progress is established in mechanical seal ring 11 both sides, and the thermal medium in the compensator is sealed by mechanical seal ring 11 and deformable elevated-temperature seal ring 9.Mechanical seal ring 11 is the big mechanical seal ring of thermal expansion coefficient, and deformable elevated-temperature seal ring 9 is the high-temperature resistance plastice seal ring.When adaptor tube 1 is taken over seamless steel pipe 8 expanded by heating that are connected with stainless steel, the surface, inside of the outer surface of seamless adapter 8 and supported flange 7 deformable elevated-temperature seal rings 9 and mechanical seal ring 11 produces relative displacement, because mechanical seal ring 11 outer surfaces and adaptor tube 1, the internal surface of main flange 5 fits tightly, mechanical seal ring 11 two ends are individually fixed in the anti-slip ring 10, and internal surface is fitted with the outer surface of seamless adapter 8 respectively, when being heated owing to tube coupling on the one hand, to produce extruding to anti-slip ring 10 along its radial expansion, on the other hand because the thermal expansion coefficient of mechanical seal ring 11 is big, when being heated, it also can radially produce expansion, thereby seamless adapter 8 joint outer surfaces are produced extruding, so just thermal medium has been carried out mechanical seal by the mechanical force of thermal expansion.High-temperature resistance plastice seal ring 9 makes the extruding of supported flange 7 to it by stud bolt 6, and then produces distortion, and high temperature plastics seal ring 9 is contacted and then sealing with the tight of seamless adapter 8.In use, because of making mechanical seal ring 11 and elevated-temperature seal ring 9 surfaces, long-term friction may produce wearing and tearing, and then the leakage that may produce the heating power medium, at this moment, can make high temperature plastics seal ring 9 produce the effect that distortion reaches sealing by tightening stud bolt 6 again.
Claims (5)
1, non-resistance rotary joint, comprise adaptor tube (1) and seamless adapter (8), it is characterized in that adaptor tube (1) large diameter one end is connected with an end of seamless adapter (8), establish mechanical seal ring (11) between the outer ring surface of the inner ring surface of main flange (5) and seamless adapter (8), the end of mechanical seal ring (11) is established by main flange (5) and supported flange (7) and is overlayed deformable elevated-temperature seal ring (9) at seamless adapter (8) outer ring surface.
2, non-resistance rotary joint according to claim 1, it is characterized in that on seamless adapter (8) outer ring surface between adaptor tube (1) and the main flange (5), establishing fixedly steel loop (3), at adaptor tube (1) and fixedly between the steel loop (3), and fixedly establishing rolling steel ball (2) between steel loop (3) and the main flange (5).
3, non-resistance rotary joint according to claim 1 is characterized in that being provided with outer steel loop (4) with the parallel fit of seamless adapter (8) in adaptor tube (1) and outer rim between the main flange (5).
4, non-resistance rotary joint according to claim 1 is characterized in that between main flange (5) and supported flange (7) outer rim fastening by stud bolt (6).
5, non-resistance rotary joint according to claim 1 is characterized in that mechanical seal ring (11) both sides establish the anti-slip ring (10) that makes progress parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104997 CN2921525Y (en) | 2006-06-22 | 2006-06-22 | Non-resistance rotary joint compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104997 CN2921525Y (en) | 2006-06-22 | 2006-06-22 | Non-resistance rotary joint compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921525Y true CN2921525Y (en) | 2007-07-11 |
Family
ID=38254004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620104997 Expired - Fee Related CN2921525Y (en) | 2006-06-22 | 2006-06-22 | Non-resistance rotary joint compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921525Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109074A (en) * | 2011-03-14 | 2011-06-29 | 江苏宏鑫旋转补偿器科技有限公司 | Rotary compensator for corrosion-resistant pipeline based on titanium steel or zirconium steel composite plates |
| CN108131519A (en) * | 2017-12-11 | 2018-06-08 | 中国船舶重工集团公司第七0五研究所 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
-
2006
- 2006-06-22 CN CN 200620104997 patent/CN2921525Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109074A (en) * | 2011-03-14 | 2011-06-29 | 江苏宏鑫旋转补偿器科技有限公司 | Rotary compensator for corrosion-resistant pipeline based on titanium steel or zirconium steel composite plates |
| CN108131519A (en) * | 2017-12-11 | 2018-06-08 | 中国船舶重工集团公司第七0五研究所 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
| CN108131519B (en) * | 2017-12-11 | 2019-05-31 | 中国船舶重工集团公司第七0五研究所 | A kind of rotation seal joint for the connection of high temperature and pressure motion tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20100622 |