CN101799080B - Double-ball rigid-flexible deformation seal valve - Google Patents
Double-ball rigid-flexible deformation seal valve Download PDFInfo
- Publication number
- CN101799080B CN101799080B CN2009102214004A CN200910221400A CN101799080B CN 101799080 B CN101799080 B CN 101799080B CN 2009102214004 A CN2009102214004 A CN 2009102214004A CN 200910221400 A CN200910221400 A CN 200910221400A CN 101799080 B CN101799080 B CN 101799080B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- spheroid
- valve
- ball
- double
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000008676 import Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000005489 elastic deformation Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000012384 transportation and delivery Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The invention discloses a sealing and execution operating part for opening and closing a valve, which has a cone or a spherical surface and a filling material for sealing. The invention particularly discloses a double-ball rigid-flexible deformation seal valve, wherein a pipeline is arranged in a valve body cavity of the seal valve; two balls are arranged in the pipeline; the balls and the pipe diameter form a rigid close fit and a flexible close fit and are in an interference close fit; the flexible one generates elastic deformations to wrap a ball body to form a compact seal; and when a screw rod drives the ball body to perform axial displacement, one ball performs opening and closing functions, while the other ball seals the operating part permanently, so the two balls realizes the breakthrough of zero leakage for a high-temperature high-pressure valve or other gas-liquid deliveries. The pipeline is sleeved in a valve body; two layers of an external part are tightly sleeved together; the middle section of the pipeline is provided with a hole communicated with a valve cavity; two sides of the seal vale are provided with a ball body respectively to extrude a pipe hole in interference; an annular sealing ring is formed on the circumference of a contact line; and the sealing is reliable and durable. The two balls are linked with each other and perform axial movement by screw drive to expand part of the pipeline to have elastic deformation, and the outer diameter of the part of the pipeline is close to or contacts the aperture of the valve body to improve the intensity. The seal valve is also provided with a sealing surface to replace an old one, so the double-ball rigid-flexible deformation seal valve is a product most suitable for various pressures, temperatures and bad dangerous environments.
Description
Technical field
The pipeline break-make will have and opens and closes and the executable operations device, and its sealing often packs tightly with the combination densification of two planes, tapered cylindrical face or circular arc spherical surface or filler and regulates or by flow.
A kind of by just matching with gentle, with firm person's the gentle person of interference size extruding expansion, form the person's that softens resiliently deformable, realize hard and soft being closely as one, become the double-ball rigid-flexible deformation seal valve of sealing surface.
Pipeline is arranged in the valve body; Two blockage bodies (like spheroid) are arranged again in the pipe; Valve body externally is connected the termination with pipeline and becomes the close-fitting double layer construction, and all the other valve openings leave little gap, and big chamber communicates with pipeline middle part slotted hole; The central tube internal diameter is done axial displacement than big slightly two blockage bodies of sphere diameter (below be generically and collectively referred to as spheroid) and just can break-make be opened and closed, and just carries out that end Guan Yuqiu that opens and closes operation and becomes sealed-for-life.
Background technique
The pipeline gas-liquid is dredged or by coming closed or unlatching by the two geometrical shape and the identical sealing surface of physical dimension usually, the multinomial conformity of two containing junction planes is difficult to reach, so seepage is inevitable.Especially control operation part because rotation or slippage and must wear and tear, and corrosion and damage, external leakage even exist at the very start.This must be from outside to inside the action piece seepage control measure so far not perfect, especially HTHP is carried or poisonous and its leakage pollution environment of hazardous fluids, is reduced pressure, off-energy, very likely accidents caused.So structural hidden danger must be got rid of technically.
Common valve opening or closed the employing are rotated and clutch relatively, and the big operation effort of torque is time-consuming again, the height of controlling cost.Rotate to combine in addition because of difference that clutch moves distance makes impacting force and deformation extent inconsistent, seal inhomogeneously, be easy to generate localized seepage's phenomenon.
Summary of the invention
A kind of double-ball rigid-flexible deformation seal valve that just becomes fine and close sealing and sealed-for-life that adopts with gentle extruding mutually; An amount of interference by rigid pipe; The extruding flexible member reaches distortion and produces deformation force, makes the two combine finer and closely, realizes dead-tight fluid break-make control.
Meet in the valve body of pressure, temperature and requirement of strength and adorn a pipeline; Be provided with two spheroids in the pipe; Ball and ball are interconnected, can in pipe, be done axial displacement by screw rod, and a spheroid becomes break-make to open and close function; No matter assembly air-tight state when another spheroid is opened or closed in the pipe of operating end all the time is so the sealing of two balls has realized that 0 reveals.
A valve body becomes the T font that three external end faces are arranged, and one, two ends are for importing and exporting, and three ends are adorned operation piece, and two and three in line.
Adorn a pipeline in the valve, its two termination and valve body two, three joining ends have the close-fitting of suitable length and become double-deck passage, do external installation altogether.
Internal diameter of the pipeline two end sections respectively have a spheroid to become firm softening with caliber; All become hard and soft and squeeze mutually, and produce local (both bulb contact circumference) resiliently deformable, so three external connection end of valve are ended path by two spheroids with interference fit; Not connected when closed, two perforations during unlatching.
The HTHP gas-liquid is carried the interior close-fitting of common metal thin walled tube (Stainless Steel Tube) and steel ball pipe and is sealed, and ball is just, Guan Weirou, and pipe thickness is confirmed by elastic deformation force's size, even can be selected film tube for use.Dilatating and deformable when pipeline pushes with the hard to bear steel ball of ability as Sealing makes local material form cohesive force to steel ball.Pipeline is except that two ends and valve body close-fitting; It is located near two ends because the difference of the outside dimension of valve body aperture or pipeline forms an amount of gap; Light wall pipe intensity and integral rigidity are effectively improved in this gap even be equal to outer diameter tube and come close to or in contact with corresponding valve block internal diameter.
The pipeline middle part has many elongated slot holes to communicate with valve pocket and import and export; When the power screw that receive screw rod when spheroid move axially; That ball of making on-off function leaves seal section gradually, will make to import and export when moving on to elongated slot place, pipe middle part to connect, and promptly carries and opens.But that ball of operating end becomes the close-fitting sealing state all the time in the total travel scope with internal diameter of the pipeline, reached sealed-for-life, stops the leakage of operating position.Pipe stage casing internal diameter is bigger slightly than sphere diameter, does not contact with tube wall during the spheroid displacement and does not have wearing and tearing.
Valve body becomes the structure of double-deck fit with pipeline be the design that meets requirement of strength.Pipeline and spheroid mainly are matching allowance and elastic deformation amount's choosing values as Sealing, and amount of deformation is controlled in the elastic range.So high pressure valve should select for use high elasticity and Ductile Metals to make.Big magnitude of interference can obtain big combination force, and required end thrust is also bigger.So tapered cylindrical shape or spherically easily force the bigger local elasticity's distortion of flexible pipe as rigid pipe with less steering force reaches high pressure and carries control.The big extruding of large bore valves closure size must increase, and the design length of thread engagement should suit, and both long-term reciprocating extrusion moves and can be moved to unworn novel sealing section when wear and tear in old junction.
The flexibility of hard and soft the two material of pairing is rationally selected for use by fed sheet of a media pressure height, and the flexibility of the two is that yielding degree difference is decided by elastic deformation amount and spheroid geometrical shape.The extreme pressure valve can adopt tapered cylindrical shape blockage body, so that form the annular seal band.No matter seal ring is line style or banding pattern, to should being local on the duct length and distortion that be elastic range.Adopt spheroid and pipeline to form to contact circumference ring-type tape sealing surface except that process simple and easy, can also carry out the initial period of adjustment both the operation of mechanical break-in can significantly improve the fitting surface precision.
High-temperature high-pressure metal seal opens and closes laborsaving with hard and soft cooperation, large ball games is used for opening and closing sealing, and that sphere diameter of operating end can be less, and thrust is also little.Double-deck fit intensity is firm, and designs simplification is easy to manufacture, and leakage is captured in forced seal, is widely used remarkable benefit.
Establish pipe in the valve, have two balls to seal respectively in the pipe, at axial length one section sealing surface is arranged respectively, after frequent mobile wearing and tearing, can change station still can have new unworn sealing surface, guarantees durable for a long time.
The following detail and the best approach that specifies embodiment of the present invention according to accompanying drawing.
Accompanying drawing 1 is the structure principle chart of double-ball rigid-flexible deformation seal valve.
Accompanying drawing 2 is a kind of tapered cylindrical shape figure of the interior blockage body of multiple pipe in the double-ball rigid-flexible deformation seal valve.
Accompanying drawing 3 is reducer road shape figure of double-ball rigid-flexible deformation seal valve, and two sphere diameters can differ bigger.
Among Fig. 1,1, valve body, 2, pipeline, 3, spheroid, 4, connecting rod, 5, another spheroid, 6, screw rod (or claiming valve rod), 7, backing plate, 8, end cap, 9, bearing, 10, nut holds concurrently to rotate and connect.
Valve body 1 has three-dimensional to outreach flange among the figure, combines with conveyor member sealing, and valve body aperture and pipeline close-fitting be close to be associated with one section cylindrical length and to combine, and valve body axis hole relative duct size external diameter is thereafter processed little gap cavity, so that expand to pipe deforming.Bigger valve pocket is arranged in the valve body, form a space with pipeline, gas-liquid mediation resistance is little.
The 2nd, pipeline, metallic material process thin-walled, be convenient to resiliently deformable, the center section has many slotted holes to communicate with valve pocket, and internal diameter is bigger slightly than sphere diameter.The 3rd, blockage body has cydariform spherical or that tapered cylindrical combines, and two spheroid branches are located at two ends in the pipe, and the connecting rod interlock is arranged, and a ball is made the keying function of passage, and another ball prevents the seepage of action piece in the Guan Zhongzuo permanent closure of a screw rod operating end.Two spheroids become a firm gentle pairing with pipeline, the somewhat larger in diameter of Metal Ball forms extruding and close-fitting in bore, and it is current to stop up gas-liquid.But be displaced to the elongated slot place is Open valve (this moment, ball did not contact with tube wall), reaches gas-liquid and carries.Though pipeline wall thickness is thin, because valve body aperture fit, close-fitting or inflated tube external diameter are arranged near valve opening outward, so thin walled tube has higher intensity, can bear high pressure.Spheroid 5 is in the close-fitting sealing state all the time with caliber, realizes that easily 0 of operating end is leaked, and not corrosion is used in driving component and gas-liquid isolation such as screw rod, nut and bearing for a long time after the grease lubrication like this, and the keying transmission is laborsaving and flexible.
Ball and bore are sealing surface axial slips again, so the precision on surface and roughness and wear resistance will be got well, use prolonged not bad for a long time.Precision is high because spheroid and pipe are processed the most easily, and cost is low, so these article adopt the circumference sealing surface.
The 6th, screw rod has the slippage keyway, and nut 10 rotates during transmission, and screw rod 6 only moves axially.Because spheroid is non-directional, any direction is a circumference ring-type line or belt with contacting of caliber, guarantees that sealing combines, and reaches conformity in many ways so spheroid moves axially.
The 7th, backing plate, it bears the end thrust of bearing 9.The 8th, end cap is held concurrently and is supported.Nut 10 rotates laborsaving by two bearing both sides pressure-bearings.Do not have gas-liquid seepage or corrosion owing to operation piece does not communicate with inner chamber, and reduced part.
Contact seal need reach certain impacting force, and both pressure should be enough, and the big more pressure of its fitting surface is more little, so large size sealing and unreliable.The present invention adopts the local deformation of ball and pipe to reach big pressure, and surface of contact becomes the line or belt shape to combine precision high simultaneously, and closed compactness is good, is the leak free breakthrough of high pressure valve.Hard and soft pairing interference extruding of the present invention, resiliently deformable, two ball sealings close and also can adopt nonmetallic material to make Guan Yuqiu when being applied to the mesolow valve, and not only sealing can also reduce steering force and manufacture cost easily.
Interference fit should adopt local deformation; And to use sufficient thin-wall part, even can adopt film, but the less relatively deformable member of these strength and stiffness should have the bigger valve body support of strength and stiffness; Be that thin-walled or film will become double-deck the use with the valve body fit; Be support with the intensity of valve body, thin-walled resiliently deformable part could be durable in use, and this is characteristic of the present invention and contribution.
Accompanying drawing 2 is that two blockage bodies in the pipeline adopt the tapered cylindrical combination; 3 and 5 is tapered cylindrical bodies that branch is located at pipeline two ends among the figure, and the middle part is cylindric, circularizes the band sealing after pushing with the pore interference; The 5th, connecting rod, two tapered cylindrical body axial displacements in the same way simultaneously.
Accompanying drawing 3 is pipelines that large bore valves adopts two spheroids that vary in size, and big caliber is joined large ball games and done break-make control sealing, and little caliber is joined the no external leakage sealing that bead is done the operating end, and the monnolithic case size is little like this, and practicality is attractive in appearance again.
Above-mentioned blockage body is identical with the spheroid working principle, and its cylinder width pressing force and pipe thickness are selected desired value.
The size of two spheroids or two tapered cylindrical bodies can be different, and corresponding caliber is also along with change, but all the interference close-fitting will be arranged.Easy in order to process, small-bore valve two balls can be identical.That section of control operation Guan Yuqiu of heavy caliber valve should select for use than minor diameter by screw rod is required, is easy to sealing, reduces weight and steering force, reduces cost.
Claims (4)
1. double-ball rigid-flexible deformation seal valve; Have valve body (1), pipeline (2), two spheroids (3,5) and screw rod (6); The said pipeline of cavity inner sleeve (2) that it is characterized in that said valve body (1); Said two spheroids (3,5) are arranged in said pipeline (2) endoporus, and said spheroid (3,5) is arranged at the endoporus two end part of said pipeline (2) respectively, and the connecting rod interlock is arranged; Resiliently deformable during said pipeline (2) the hard to bear said spheroid of ability (3,5) extruding contains obvolvent and compresses said spheroid (3,5), forms the close-fitting sealing; Said pipeline (2) middle part internal diameter is bigger slightly than said spheroid (3,5) diameter; Do not contact with said pipeline (2) middle part when moving axially said spheroid (3,5) and do not have wearing and tearing; Said pipeline (2) sealed at both ends section internal diameter is but less than said spheroid (3,5) diameter, forms the interference close-fitting of the face that combines and seals; The middle part of said pipeline (2) has many slotted holes that the inner chamber of said valve body (1) is communicated with the endoporus of said pipeline (2); When the power screw that receive screw rod (6) when said spheroid (3,5) move axially; One of them spheroid (3) is made on-off function; Leave the seal section of said pipeline (2) gradually; Will make to import and export when moving on to slotted hole place, said pipeline (2) middle part to connect, and become the close-fitting sealing state with said pipeline (2) internal diameter all the time in the total travel scope at another spheroid (5) of the screw rod operating end of said pipeline (2).
2. double-ball rigid-flexible deformation seal valve according to claim 1; It is characterized in that said pipeline (2) is a thin-wall part; Two ends internal diameter and said spheroid (3,5) close-fitting; Said pipeline (2) is made the local external diameter of resiliently deformable and can be reached and draw close the corresponding hole wall of valve body (1), becomes double-deck valve body, improves pipeline strength.
3. double-ball rigid-flexible deformation seal valve according to claim 1 is characterized in that at the diameter of said another spheroid (5) of the screw rod operating end of said pipeline (2) diameter less than a said spheroid (3) of making on-off function.
4. double-ball rigid-flexible deformation seal valve according to claim 1 is characterized in that said two spheroids (3,5) respectively have one section sealing surface at axial length, can reach sealing at new station after the frequent old position wearing and tearing of using and guarantee durable for a long time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102214004A CN101799080B (en) | 2009-11-09 | 2009-11-09 | Double-ball rigid-flexible deformation seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102214004A CN101799080B (en) | 2009-11-09 | 2009-11-09 | Double-ball rigid-flexible deformation seal valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101799080A CN101799080A (en) | 2010-08-11 |
| CN101799080B true CN101799080B (en) | 2012-11-14 |
Family
ID=42594884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102214004A Active CN101799080B (en) | 2009-11-09 | 2009-11-09 | Double-ball rigid-flexible deformation seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101799080B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013030408A1 (en) | 2011-09-02 | 2013-03-07 | Alfmeier Präzision AG Baugruppen und Systemlösungen | Pump, in particular pneumatic pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473671A1 (en) * | 1980-01-14 | 1981-07-17 | Asahi Organic Chem Ind | Demountable non-return valve - has threaded pipe connections each end and with double action seal one side of split housing |
| CN1205967A (en) * | 1997-06-27 | 1999-01-27 | 艾里希普费弗工程师有限公司 | Media dispenser |
| CN2512960Y (en) * | 2001-11-16 | 2002-09-25 | 陈满林 | Ball valve |
| CN2713241Y (en) * | 2004-03-04 | 2005-07-27 | 江苏神通阀门有限公司 | Upload ball valve |
-
2009
- 2009-11-09 CN CN2009102214004A patent/CN101799080B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473671A1 (en) * | 1980-01-14 | 1981-07-17 | Asahi Organic Chem Ind | Demountable non-return valve - has threaded pipe connections each end and with double action seal one side of split housing |
| CN1205967A (en) * | 1997-06-27 | 1999-01-27 | 艾里希普费弗工程师有限公司 | Media dispenser |
| CN2512960Y (en) * | 2001-11-16 | 2002-09-25 | 陈满林 | Ball valve |
| CN2713241Y (en) * | 2004-03-04 | 2005-07-27 | 江苏神通阀门有限公司 | Upload ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101799080A (en) | 2010-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103511772B (en) | A kind of scalable rotatable metallic pipe coupling | |
| CN205298779U (en) | A cam gearing for valve | |
| CN201190552Y (en) | Mechanically controlled multi-time on-off valve | |
| CN110657308A (en) | Combined multi-way end face sealing rotary compensator | |
| CN201032034Y (en) | Combined seal member for pipeline sealing | |
| CN101799080B (en) | Double-ball rigid-flexible deformation seal valve | |
| CN211371314U (en) | High-temperature-resistant bidirectional hard seal butterfly valve | |
| CN201202812Y (en) | Telescope-feed combined sealing element | |
| CN214425353U (en) | Composite sealing structure and rotary compensator adopting same | |
| CN201034181Y (en) | Hard-sealing ball valve seat structure | |
| CN204664441U (en) | The two-way soft sealing butterfly valve of a kind of High Pressure Difference | |
| CN102518829B (en) | Ball valve with low-wear seal surface | |
| CN114370513B (en) | Internal expansion sealing valve | |
| CN201407436Y (en) | Self-locking and self-adjustable pipe connection structure | |
| CN210372042U (en) | Two-way pure metal hard seal butterfly valve | |
| CN202851941U (en) | Large-diameter alloy O-shaped seal ring | |
| CN205781583U (en) | Band cutoff function hose coupling | |
| CN214466243U (en) | Eccentric compensation valve | |
| WO1983002814A1 (en) | Connecting link for gaseous or liquid media | |
| CN115183070A (en) | Pressure balance type ball sleeve type deformation compensation device and system for sea pipeline | |
| CN206694721U (en) | Floating sealed sleeve expansion joint | |
| CN103335129B (en) | High-temp and-pressure ball valve | |
| CN201034184Y (en) | Standing ball valve seat structure | |
| CN203115129U (en) | Triple eccentric metallic seal butterfly valve | |
| CN106051204A (en) | Ultra-large diameter all-welded ball valve sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ANYAN INFORMATION TECHNOLOGY CO., LTD. Effective date: 20131205 Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: CHEN GUANGQIANG Effective date: 20131205 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Guangqiang Inventor after: Ge Jianfei Inventor after: Yang Ming Inventor after: Qin Feng Inventor after: Jiu Zelin Inventor after: Zeng Tao Inventor before: Chen Guangqiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN GUANGQIANG TO: CHEN GUANGQIANG GE JIANFEI YANG MING QIN FENG MIAO ZELIN CENG TAO Free format text: CORRECT: ADDRESS; FROM: 325102 WENZHOU, ZHEJIANG PROVINCE TO: 200002 HUANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131205 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Anyan Information Technology Co., Ltd. Address before: 325102 Zhejiang province Yongjia County Oubei town Jin Jiang Road No. 11 Patentee before: Chen Guangqiang |