CN201359156Y - High-voltage resistant precise rotary compensator - Google Patents
High-voltage resistant precise rotary compensator Download PDFInfo
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- CN201359156Y CN201359156Y CNU2009200070634U CN200920007063U CN201359156Y CN 201359156 Y CN201359156 Y CN 201359156Y CN U2009200070634 U CNU2009200070634 U CN U2009200070634U CN 200920007063 U CN200920007063 U CN 200920007063U CN 201359156 Y CN201359156 Y CN 201359156Y
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- pipe
- outer sleeve
- flexible graphite
- graphite packing
- steel ball
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Abstract
The utility model discloses a high-voltage resistant precise rotary compensator, which belongs to the technical field of heating pipeline compensating devices. The high-voltage resistant precise rotary compensator comprises an inner pipe (1), a blank holding flange (2), an outer sleeve flange (3), bolts and nuts (4), an outer sleeve (5), a reducing expansion pipe (6), a steel ball (7), a reducing pipe bearer (8), an inner pipe outer convex ring (9), a tower sealing plate (10), a flexible graphite packing material (11), an outer sleeve inner bearer (12), a flexible graphite packing material (13), a steel ball (14) and an axis centering ring (15). One end of the outer sleeve (5) is directly inserted into and welded with an outer L-shaped end opening of the reducing pipe bearer (8) and then extends to form the reducing expansion pipe (6), the inner pipe outer convex ring (9) is arranged on an inner pipe (1), the end face of the bottom of the tower sealing plate (10) abuts onto the same end plane formed by the inner pipe outer convex ring (9) and the reducing pipe bearer (8), the end face and the annular face of the top of the tower sealing plate (10) are embedded into the flexible graphite packing material (11), the steel ball (7) is arranged between the outer end face of the inner pipe outer convex ring (9) and the reducing pipe bearer (8), and the steel ball (4) is arranged between the axis centering ring (15) and the blank holding flange (2). The compensator utilizing the structure facilitates quality detection of welded seams after being connected with pipes, and has the advantages of high precision, low friction coefficient and self-torque, high bending resistance and bearing capacity, reliable sealing, low pressure loss, unlimited medium flow direction, fine property, and safe and reliable pipe operation.
Description
Technical field
The present invention relates to a kind of high pressure resistant accurate whirl compensator, belong to the technical field of heat distribution pipeline compensation device, belong to the technical field of the heat distribution pipeline compensation device structure of using in the industries such as oil, chemical industry, light industry, heating power, metallurgy specifically.
Background technique
Heat distribution pipeline must cause expanding with heat and contract with cold of pipeline because of the medium temperature of transmission changes, and the pipeline dilatation is to occur with end thrust that is unfavorable for the pipe safety operation or axial displacement form.Under the normal conditions, all be provided with the compensation of pipeline device in the heat distribution pipeline to absorb or the compensation pipe deforming.The pipeline compensator of prior art has multiple structural type, all has to absorb or compensation pipeline deformation ability, and wherein, the whirl compensator performance is the most outstanding.The most representative in the market whirl compensator product has:
The improved whirl compensator of China Patent No. ZL02258709.8
China Patent No. ZL200520074933.1 maintenance-free rotary compensator,
The accurate whirl compensator of China Patent No. ZL200720128801.1
The buried maintenance-free rotary compensator of China Patent No. ZL200720033902.0
Although above-mentioned several prods technology, structure are different, all have characteristics such as compensation rate is big, flexible arrangement.
But exist not enough:
The improved whirl compensator of China Patent No. ZL02258709.8 exists not enough:
1. the junction excesssive gap of interior pipe and reducer pipe can produce eddy current at this position in the flowing medium motion, has increased the pressure loss of flowing medium.
2. the junction MEDIA FLOW of interior pipe and reducer pipe is to suffering restraints.
3. the steel ball in the filler flange outer annular recess contacts for line style with the interior pipe outside, and surface of contact is too small, adds that there is certain interval in steel ball and the interior pipe outside, and it is poor that effect is set upright in the axle center.
4. distance is too small between the two for the steel ball between interior steel ball of filler flange outer annular recess and the interior pressure-bearing platform of outer sleeve, the interior pipe outer shroud, axle center control is poor, pipe self torque when rotatablely moving is excessive in causing easily, can't bear in rotatablely moving the laterally huge blind plate power of torsion and thermal expansion of pipeline, cause off-centre mill, form the flowing medium leakage way filler.
5. the reducer pipe extending part is the curved pipeline section, and the weld seam that this position is connected with pipeline can't carry out normal quality testing.
China Patent No. ZL200520074933.1 maintenance-free rotary compensator,
The accurate whirl compensator of China Patent No. ZL200720128801.1
The buried maintenance-free rotary compensator of China Patent No. ZL200720033902.0
More than three products exist not enough:
1. the reducer pipe of outer tube tail end is a step type, product when assembling complex process and can only be single-sided welding, and bearing capacity and structural stress are relatively poor.
2. supported flange, filler flange inner ring words of not putting steel ball, tubular axis heart degree can only be the gap control between flange inner ring and interior pipe outer ring in minimum zone in guaranteeing, frictional resistance is excessive in the time of can forming mutual rotation though the axle center degree is guaranteed, though lag in the pipe pressure-bearing platform and interior pipe outward the rolling ring of interannular be line style and contact, frictional resistance is still bigger.When thermal compensation moves, cause easily like this because of the distortion of fixed point girder steel, even cause pipeline to arch upward and the explosion of pipeline welding position.
3. the inboard cavity pressure passage of outer tube tail end step type reducing is obvious, and build-up of pressure is to the direct impact of flexible graphite packing.Because what adopt is the durability that single sealing means has directly reduced sealing material.
Summary of the invention
The invention provides a kind of high pressure resistant accurate whirl compensator.Excessive with the axle center degree inaccuracy that realize to solve all whirl compensators in the prior art, self torque, friction factor, seal form is single, flowing medium and MEDIA FLOW cause problems such as boost pressure loss to limited, structure, and eliminated the direct impact of internal pressure simultaneously to stuffing box packing, improve the purpose of sealing material endurance issues.
Technological scheme of the present invention is in order to achieve the above object:
A kind of high pressure resistant accurate whirl compensator comprises interior pipe, the binder flange, the outer sleeve flange, bolt and nut, outer sleeve, the reducing extension tube, steel ball, the reducer pipe cushion cap, the protruding outer shroud of interior pipe, the turriform diaphragm seal, flexible graphite packing, pressure-bearing platform in the outer sleeve, flexible graphite packing, steel ball and axle center centering ring are formed, wherein: the outer sleeve flange, outer sleeve and reducer pipe suspended deck structure are that the straight insertion of an end of outer sleeve is connected with the external port butt joint of reducer pipe cushion cap and extends formation reducing extension tube, pressure-bearing platform in the outer sleeve is established in the outer sleeve inboard, protruding outer being located on the interior pipe of interior pipe, with pressure-bearing platform one side end face in the outer sleeve, outer sleeve inboard and reducer pipe cushion cap enclose to cover and form a holding space, flexible graphite packing and turriform diaphragm seal are located in this holding space zone, on the same side end face that the butt joint of protruding outer shroud of pipe and reducer pipe cushion cap formed in turriform diaphragm seal tower seat end face installed, turriform diaphragm seal cat head end face and anchor ring embed in the flexible graphite packing, are provided with steel ball between protruding outer shroud one side of interior pipe and the reducing extension tube seam crossing end face; The binder flange is shaped as the L type, in the chamber in flexible graphite packing places between pipe and the outer sleeve, flexible graphite packing one end face supports pressure-bearing platform in the outer sleeve, the other end supports binder flange L type end, contact axle center, relative binder flange L type the other end outside centering ring, the axle center centering ring is partially submerged in the binder flange L type the other end outside, is provided with steel ball between axle center centering ring and the binder flange contact facings; Interior pipe is same internal diameter with reducing extension tube seam crossing, both coaxial correspondences, and outside the pipe, axle center centering ring and interior pipe jointing place were that fine finishing is combined closely in the axle center centering ring was located at.
Establish through hole respectively on this binder flange and the outer sleeve flange, the screw bolt passes by bolt and nut is with the connection of linking closely of the nut of bolt and nut.
This reducing extension tube reducing position is that external diameter changes, and reducing position internal diameter and inner tube diameter are not same, coaxial corresponding butt joint, and reducing extension tube extending part is a straight length.
Should interiorly manage pipe top in protruding outer being located on, the rectangular projection in cross section, a side end face is stepped, replaces with described turriform diaphragm seal, and the opposite side end face is established a recess, and rectangular preiection anchor ring and reducer pipe cushion cap inboard are contact condition.
Should interiorly manage between protruding outer shroud anchor ring inboard stepped trough with straight angle inboard and the outer sleeve inboard and be provided with flexible graphite packing, be provided with the turriform diaphragm seal between flexible graphite packing and the protruding outer shroud of interior pipe.
Closely join with welding manner outside the inboard and interior pipe of this axle center centering ring and combine.
This axle center centering ring one side is provided with a recess, steel ball insert this recess and with binder flange contact.
Should interiorly manage between the root outside, protruding outer shroud ring side and the reducing extension tube seam crossing end face and be provided with steel ball.
This flexible graphite packing and flexible graphite packing are positioned at outer sleeve pressure-bearing platform both sides.
Adopt technological scheme of the present invention owing to comprise pressure-bearing platform, flexible graphite packing, steel ball and axle center centering ring in interior pipe, binder flange, outer sleeve flange, bolt, nut, outer sleeve, reducing extension tube, steel ball, reducer pipe cushion cap, the protruding outer shroud of interior pipe, turriform diaphragm seal, flexible graphite packing, the outer sleeve.In the chamber between interior pipe and the outer sleeve flexible graphite packing is housed, flexible graphite packing supports pressure-bearing platform in the outer sleeve, the binder flange is equipped with in the other end of flexible graphite packing, binder flange and outer sleeve flange pass through bolt, nut is fixed, be provided with steel ball between axle center centering ring anchor ring and the binder flange, the protruding outer shroud of interior pipe is provided with flexible graphite packing and turriform diaphragm seal with interior pipe and inboard the combination with the reducer pipe cushion cap in the regional space that forms of outer sleeve, same the holding level with both hands that protruding outer shroud of pipe and reducer pipe cushion cap formed in turriform diaphragm seal tower seat end face installed, turriform diaphragm seal cat head end face and anchor ring embed in the flexible graphite packing, and the straight insertion of an end of outer sleeve and the external port and the reducer pipe cushion cap of reducer pipe cushion cap are welded to connect.The reducer pipe internal diameter is identical with inner tube diameter, and the end clearance is little between the two, and particularly the reducing position is that external diameter changes, and reducing position internal diameter is coaxial corresponding to a pipe with interior pipe, and such structure has improved bearing capacity greatly, has eliminated the pressure loss.Spacing and the axle center degree control of pipe reduced the frictional resistance triple function in its steel ball played.Its axle center centering ring is that anchor ring combines with interior pipe outer shroud, avoided the internally abrasion of pipe outer shroud part of line style contact, and the spacing of steel ball and steel ball is long, and axle center control is more accurate.The interior Guan Yiduan outside is little with the interior gap, side ring surface of reducer pipe cushion cap.The turriform diaphragm seal has played the mechanical seal effect and has eliminated the direct impact of pressure to flexible graphite packing again, and the flexible graphite packing sealing adds mechanical seal, and sealability is more reliable, and reducing extension tube extending part is a straight length.
Adopt the technical program to be convenient to quality testing with the pipeline attachment weld, have the precision height, friction factor, self torque are little, bending resistance, bearing capacity are strong, and sealing is reliable, and the pressure loss is little, MEDIA FLOW is to limited, function admirable, the characteristics that pipeline is safe and reliable to operation.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a partial structurtes enlarged diagram of the present invention
Description of reference numerals:
1. interior pipe, 2. the binder flange, 3. the outer sleeve flange, 4. bolt and nut, 5. outer sleeve, 6. the reducing extension tube, 7. steel ball, 8. the reducer pipe cushion cap, 9. in the protruding outer shroud of pipe, 10. pressure-bearing platform, 13. flexible graphite packings, 14. steel balls, 15. axle center centering rings in the turriform diaphragm seal, 11. flexible graphite packings, 12. outer sleeves.
Embodiment
Below in conjunction with accompanying drawing technological scheme of the present invention is described in detail as follows.
Be structural representation of the present invention and local enlarged diagram as shown in Figure 1 and Figure 2, high pressure resistant as can be seen from Figure accurate whirl compensator is made up of pressure-bearing platform 12, flexible graphite packing 13, steel ball 14, axle center centering ring 15 in interior pipe 1, binder flange 2, outer sleeve flange 3, bolt and nut 4, outer sleeve 5, reducing extension tube 6, steel ball 7, reducer pipe cushion cap 8, the protruding outer shroud 9 of interior pipe, turriform diaphragm seal 10, flexible graphite packing 11, the outer sleeve.Wherein: outer sleeve flange 3, outer sleeve 5 are structure as a whole, with reducer pipe cushion cap 8 linkage structures is that the straight insertion of an end of hermetically sealed case pipe 5 is docked with the external port of reducer pipe cushion cap 8, two craft port are established the chamfering of being convenient to weld respectively, after being welded to connect, extend formation reducing extension tube 6.The protruding outer shroud 9 of interior pipe is managed on 1 outside in being located at, can be located near inner tube mouth place, shape can be rectangular preiection, the rectangle anchor ring is with reducer pipe cushion cap 8 one side end faces (for example inner side end) and docks contact condition, the slit can be left in the centre, its rectangular preiection one end (the inner) is established stepped, and direct its ladder place of contact at the bottom of turriform diaphragm seal 10 towers, the zone, right angle that the ladder place forms naturally form turriform diaphragm seal 10 and fasten; The rectangular preiection the other end (outer end) face is established a recess and can be inserted for steel ball 7; Pressure-bearing platform 12 rectangular projectioies and be located at outer sleeve 5 inboards in the outer sleeve, postpone and form L shaped right angle to reducer pipe cushion cap 8 ends in outer sleeve 5 inboards, L is short, and end face docks same Transverse plane and turriform diaphragm seal 10 contacts that form with protruding outer shroud 9 end faces of interior pipe, the cat head end face of turriform diaphragm seal 10 and turriform anchor ring embed in the flexible graphite packing 11 along flexible graphite packing 11 1 side end faces, pressure-bearing platform 12 in the flexible graphite packing 11 other end contact outer sleeves, flexible graphite packing 11 are located at pressure-bearing platform 12 1 sides in the outer sleeve.Binder flange 2 sectional shapes are the L type, establish through hole on the end face of the long limit of its L type and supply the bolt of bolt and nut 4 to penetrate.Flexible graphite packing 13 places between interior pipe 1 and the outer sleeve 5, pressure-bearing platform 12 1 side end faces in the one end contact outer sleeve, and flexible graphite packing 11 is located at interior pressure-bearing platform 12 both sides of outer sleeve respectively with flexible graphite packing 13 and contacts with both sides end face contact respectively; Flexible graphite packing 13 other ends (not contacting end face with pressure-bearing platform 12 end faces in the outer sleeve) support binder flange 2L type end or the short end of L type; Outer sleeve flange 3 is provided with through hole, binder flange 2 and the outer sleeve flange 3 screw bolt passes through hole separately by bolt and nut 4 again the nut by bolt and nut 4 link closely lock and connect fixing.Binder flange 2 outsides (contacting end face relatively with outer sleeve flange 3 for inboard) are inwardly managed 1 direction and are established concave station portion, axle center centering ring 15 can be partially submerged in the described concave station of binder flange 2 portion, axle center centering ring 15 ring end faces one side is established the recess of its cross section like breach, steel ball 14 is placed in one, and steel ball 14 equals to place on the axle center centering ring 15 and imbeds in the described concave station of binder flange 2 portion.Interior pipe 1 is same internal diameter with reducing extension tube 6 seam crossings, both coaxial correspondences, and pipe 1 outside in axle center centering ring 15 is located at, combine closely for fine finishing in interior pipe 1 outside and axle center centering ring 15 inboards, for example solder bond.Reducing extension tube 6 reducing positions are that external diameter changes, and reducing position internal diameter is not identical with interior pipe 1 internal diameter, and reducing extension tube 6 extending parts are the coaxial corresponding butt joint of straight length.Turriform diaphragm seal 10 can play the mechanical seal effect and eliminate the direct impact of pressure to flexible graphite packing 11 again, and the flexible graphite packing sealing adds mechanical seal, and sealability is reliable, manages between protruding outer shroud 9 and the reducer pipe cushion cap 8 in steel ball 7 contacts are pressed on.
Adopt technological scheme of the present invention owing to comprise pressure-bearing platform 12, flexible graphite packing 13, steel ball 14, axle center centering ring 15 in interior pipe 1, binder flange 2, outer sleeve flange 3, bolt and nut 4, outer sleeve 5, reducing extension tube 6, steel ball 7, reducer pipe cushion cap 8, the protruding outer shroud 9 of interior pipe, turriform diaphragm seal 10, flexible graphite packing 11, the outer sleeve, in the chamber between interior pipe 1 and the hermetically sealed case pipe 5 flexible graphite packing 13 is housed.Flexible graphite packing 13 1 end faces support pressure-bearing platform 12 in the outer sleeve, binder flange 2 is equipped with in the other end of flexible graphite packing 13, binder flange 2 is fixing by bolt and nut 4 with outer sleeve flange 3, is provided with between axle center centering ring 15 anchor ring ends and the binder flange 2 between the Transverse plane of steel ball 14, flexible graphite packing 11 and reducer pipe cushion cap 8 and the corresponding formation of protruding outer shroud 9 end faces of interior pipe and is provided with turriform diaphragm seal 10.This structural type makes:
1, described reducing extension tube 6 internal diameters are identical with interior pipe 1 internal diameter, and little, the coaxial correspondence in end clearance is like a pipe between the two.
2, described reducing extension tube 6 extending parts are straight length, the quality testing with the pipeline attachment weld of being more convenient for.
3, described reducer pipe cushion cap 8 internal diameters are identical with interior pipe 1 internal diameter, and reducer pipe cushion cap 8 external diameters are identical with hermetically sealed case pipe 5 external diameters.
4, described steel ball 7, play with steel ball 14 in the control of pipe 1 spacing and axle center degree, reduce the frictional resistance triple function.
5, combine closely in the described axle center centering ring 15 and interior pipe 1 outside, and steel ball 7 is long with steel ball 14 spacings, and axle center control accurately.
6, described turriform diaphragm seal 10 effect that plays mechanical seal has been eliminated the direct impact of pressure to flexible graphite packing 10 again, and the flexible graphite packing sealing adds mechanical seal, and sealability is more reliable.
7, described technological scheme is convenient to the quality testing with the pipeline attachment weld, has the precision height, and friction factor, self torque are little, bending resistance, bearing capacity are strong, and sealing is reliable, and the pressure loss is little, MEDIA FLOW is to limited, function admirable, the characteristics that pipeline is safe and reliable to operation.
Claims (9)
1. a high pressure resistant accurate whirl compensator comprises interior pipe (1), binder flange (2), outer sleeve flange (3), bolt and nut (4), outer sleeve (5), reducing extension tube (6), steel ball (7), reducer pipe cushion cap (8), interior pipe protruding outer shroud (9), turriform diaphragm seal (10), flexible graphite packing (11), pressure-bearing platform (12) in the outer sleeve, flexible graphite packing (13), steel ball (14) and axle center centering ring (15) are formed, it is characterized in that: outer sleeve flange (3), outer sleeve (5) and reducer pipe cushion cap (8) structure are that the straight insertion of an end of outer sleeve (5) is connected with the external port butt joint of reducer pipe cushion cap (8) and extends formation reducing extension tube (6), pressure-bearing platform (12) in the outer sleeve is established in outer sleeve (5) inboard, the interior protruding outer shroud of pipe (9) is located on the interior pipe (1), with (12) one side end faces of pressure-bearing platform in the outer sleeve, outer sleeve (5) inboard and reducer pipe cushion cap (8) enclose to cover and form a holding space, flexible graphite packing (11) is located in this holding space zone with turriform diaphragm seal (10), on the same side end face that the butt joint of pipe protruding outer shroud (9) and reducer pipe cushion cap (8) formed in turriform diaphragm seal (10) tower seat end face installed, turriform diaphragm seal (10) cat head end face and anchor ring embed in the flexible graphite packing (11), are provided with steel ball (7) between protruding outer shroud (9) one sides of interior pipe and reducing extension tube (6) the seam crossing end face; Binder flange (2) is shaped as the L type, flexible graphite packing (13) places in the chamber between interior pipe (1) and the outer sleeve (5), flexible graphite packing (13) one end faces support pressure-bearing platform (12) in the outer sleeve, the other end supports binder flange (2) L type end, relative binder flange (2) L type the other end outside contact axle center centering ring (15), axle center centering ring (15) is partially submerged in binder flange (2) the L type the other end outside, is provided with steel ball (14) between axle center centering ring (15) and binder flange (2) surface of contact; Interior pipe (1) is same internal diameter with reducing extension tube (6) seam crossing, both coaxial correspondences, and axle center centering ring (15) is located at interior pipe (1) outside, and axle center centering ring (15) is that fine finishing is combined closely with interior pipe (1) junction.
2. high pressure resistant accurate whirl compensator according to claim 1 is characterized in that establishing through hole respectively on this binder flange (2) and the outer sleeve flange (3), and the screw bolt passes by bolt and nut (4) is with the connection of linking closely of the nut of bolt and nut (4).
3. high pressure resistant accurate whirl compensator according to claim 1, it is characterized in that this reducing extension tube (6) reducing position is that external diameter changes, reducing position internal diameter and interior pipe (1) internal diameter are not same, coaxial corresponding butt joint, and reducing extension tube (6) extending part is a straight length.
4. high pressure resistant accurate whirl compensator according to claim 1, it is characterized in that protruding outer shroud of pipe (9) is located at interior pipe (1) top in this, the rectangular projection in cross section, one side end face is stepped, replace with described turriform diaphragm seal (10), the opposite side end face is established a recess, and rectangular preiection anchor ring and reducer pipe cushion cap (8) inboard are contact condition.
5. high pressure resistant accurate whirl compensator according to claim 1, it is characterized in that being provided with flexible graphite packing (11) between this interior pipe protruding outer shroud (9) anchor ring inboard stepped trough with straight angle inboard and outer sleeve (5) inboard, be provided with turriform diaphragm seal (10) between flexible graphite packing (11) and the protruding outer shroud of interior pipe (9).
6. high pressure resistant accurate whirl compensator according to claim 1 is characterized in that inboard closely joining with welding manner with interior pipe (1) outside of this axle center centering ring (15) combines.
7. high pressure resistant accurate whirl compensator according to claim 1 is characterized in that these axle center centering ring (15) one sides are provided with a recess, steel ball (14) insert this recess and with binder flange (2) contact.
8. high pressure resistant accurate whirl compensator according to claim 1 is characterized in that being provided with steel ball (7) between this root outside, interior protruding outer shroud of pipe (9) ring side and reducing extension tube (6) the seam crossing end face.
9. high pressure resistant accurate whirl compensator according to claim 1 is characterized in that this flexible graphite packing (13) and flexible graphite packing (11) are positioned at outer sleeve pressure-bearing platform (12) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200070634U CN201359156Y (en) | 2009-03-10 | 2009-03-10 | High-voltage resistant precise rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200070634U CN201359156Y (en) | 2009-03-10 | 2009-03-10 | High-voltage resistant precise rotary compensator |
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| Publication Number | Publication Date |
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| CN201359156Y true CN201359156Y (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200070634U Expired - Fee Related CN201359156Y (en) | 2009-03-10 | 2009-03-10 | High-voltage resistant precise rotary compensator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832438A (en) * | 2010-06-01 | 2010-09-15 | 陈墅庚 | Novel maintenance-free rotary compensator |
| CN102003592A (en) * | 2010-09-19 | 2011-04-06 | 陈墅庚 | Novel double-gland high-pressure pipeline displacement compensator |
| CN103486388A (en) * | 2013-09-27 | 2014-01-01 | 江苏昊峰管道设备有限公司 | High-pressure rotation compensator |
-
2009
- 2009-03-10 CN CNU2009200070634U patent/CN201359156Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832438A (en) * | 2010-06-01 | 2010-09-15 | 陈墅庚 | Novel maintenance-free rotary compensator |
| CN102003592A (en) * | 2010-09-19 | 2011-04-06 | 陈墅庚 | Novel double-gland high-pressure pipeline displacement compensator |
| CN102003592B (en) * | 2010-09-19 | 2013-06-26 | 陈墅庚 | Novel double-gland high-pressure pipeline displacement compensator |
| CN103486388A (en) * | 2013-09-27 | 2014-01-01 | 江苏昊峰管道设备有限公司 | High-pressure rotation compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Beite Fittings Co., Ltd. Assignor: Chen Shugeng Contract record no.: 2010320000995 Denomination of utility model: High-voltage resistant precise rotary compensator Granted publication date: 20091209 License type: Exclusive License Record date: 20100721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20180310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |