CN104061341A - Multifunctional SF6 valve with temperature compensation and high sealing performance - Google Patents
Multifunctional SF6 valve with temperature compensation and high sealing performance Download PDFInfo
- Publication number
- CN104061341A CN104061341A CN201410314604.3A CN201410314604A CN104061341A CN 104061341 A CN104061341 A CN 104061341A CN 201410314604 A CN201410314604 A CN 201410314604A CN 104061341 A CN104061341 A CN 104061341A
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- China
- Prior art keywords
- valve
- interface
- sealing
- port
- sealing performance
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- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to power transmission and transformation industries and/or high-voltage electrical products, in particular to a multifunctional SF6 (sulfur hexafluoride) valve with temperature compensation and high sealing performance. The multifunctional SF6 valve comprises a valve body, the valve body is provided with a first port connected with a user air chamber, a second port, a third port used for being connected with an instrument and a fourth port used for controlling air connection and air disconnection of the first port, wherein an air complementing self-sealing connector is arranged in the second port. The multifunctional SF6 valve is characterized in that a floating upper sealing ring base made of sealing materials is arranged on the side, close to the direction of the second port, of a valve ball in the first port, a floating baffle is arranged above the floating upper sealing ring base, an air complementing self-sealing connector is arranged in the floating baffle, and the floating baffle is connected with the inner end of a spring, and an air complementing self-sealing connector is arranged in the spring. The multifunctional SF6 valve can greatly improve the sealing performance of products and especially can overcome the defects that the sealing materials are sensitive to temperature, easy to age, short in service life, poor in corrosion resistance and the like, and the sealing performance of the SF6 valve is improved.
Description
Technical field
The present invention relates to power transmission and transformation industry and/or high pressure electrical products class, particularly a kind of multi-functional, SF with temperature correction high sealing performance
6(sulphur hexafluoride) valve.
Background technique
At present, to be often referred to and to serve electric pressure in power transmission and transformation industry be 10kv and electrical equipment more than 10kv to high pressure electrical products.But when circuit mesohigh electric product divides, closes a floodgate because of need of work, in normal air medium, the strong electric arc that high voltage produces can burn out the inner member of electric product, therefore sulphur hexafluoride SF6 gas, as having a kind of insulation and the good inert gas of arc extinction performance, is widely used in power transmission and transformation and high-voltage electrical apparatus industry.Due to it can be sufficient, safe extinguish point, close a floodgate time the electric arc that produces, so be full of the SF of certain pressure in high pressure electrical products
6gas.Along with industry and the development of producing, from safeguarding the angle of high-voltage electrical equipment safety and stability (normally) operation, need to be real-time to the SF in high-voltage electrical apparatus air chamber
6gaseous state detects accurately, SF in air chamber
6when state changes, will process accordingly (as tonifying Qi, moisture content processing etc.), simultaneously it detects corresponding instrument and also will carry out periodic check.
For this reason, Chinese invention patent prospectus (publication number: CN101776163A) discloses the controlled examination multi-pass ball valve of a kind of sulfur hexafluoride gas group.As shown in Figure 1: it comprises valve body 2, have the threeway gas circuit valve body of four integralization of interface group on valve body 2, inside have threeway gas circuit valve group, first interface is that valve body 2 right side interfaces are user's air inlet (SF
6) interface, lead to the user's air chamber being tightly connected.Second interface is that valve body 2 left side interfaces are tonifying Qi interface or are called inflatable interface, built-in tonifying Qi self-sealing joint.The 3rd interface is that above valve body 2, interface is instrumentation tap, built-in instrument self-sealing joint.Three interface composition three-way valve above, the 4th interface is positioned at for intake interface valve body 2 sides nearby, for controlling break-make gas interface, connects control ball valve switch.
In first interface, valve body 2 right side interfaces are user's intake interface, connect user's air chamber by flange seal.
In second interface, built-in tonifying Qi self-sealing joint component are inwardly assembled from first interface successively, on the spool 16 rear portion stocks that can move left and right, be socketed successively spring 15, spool positioning disk 14, positioning aluminium ring 13 and back-up ring 12 with vent, wherein spool 16 leading portion quarter butts point to outside tonifying Qi interface, positioning aluminium ring 13 and back-up ring 12 are fixed in valve body 2 inner groovies, spring 15 pretensions, tonifying Qi sealing joint face is normally closed closes in self-closing state for spool 16 sealing surfaces and valve body 2.
In the 3rd interface, built-in instrument self-sealing joint component are assembled successively, the 3rd interface that spool guide pin bushing 19 with split washer 24 is positioned to valve body 2 is fixing, be socketed with seal ring 17 and 18, spring 21, spool positioning ring 22, the self-styled spool 20 of back-up ring 24 is connected in spool guide pin bushing 19, wherein split washer 24 is fixed on spool guide pin bushing 19 in valve body 2 interfaces, spool positioning ring 22, back-up ring 23 can be enclosed in the self-styled spool 20 moving up and down in spool guide pin bushing 19, spring 21 pretensions, in self-styled spool 20 blind holes, lower end side has several vents, contact with spool guide pin bushing 19 inner faces to do to open and close and coordinate, self-styled spool 20 lower end sealed interfaces, in normal self-closing state.
In the 4th joint, it is positioned at as control interface below valve body 2, near in user's intake interface nearby, be fixed on the 4th interface of valve body 2 with the connecting rod lining 8 of seal ring 5, connect at this " fourth " word gas circuit mouth place and control ball valve switch, be first inwardly equipped with successively the spheroid 1 of the left spheroid gland nut 11 of sealing material 10, rotatable folding, spheroid gland nut 4 with sealing material 10 from first user's intake interface; The interior connection of connecting rod lining 8 is with the handle connecting rod 7 of seal ring 6, and rotating handle connecting rod 7 front ends and spheroid 1 are connected and fixed composition one, handle connecting rod 7 rear ends connect handwheels 9, these component fundamental compositions ball-handling ball valve switch.
But the existing product of said structure has in use been found following technical problem:
1,, in this ball-valve structure, the sealing material 10 that spheroid 1 both sides of rotatable folding seal is all by spheroid gland nut 4,11 location, and is stationary positioned structure.Because sealing material 10 (as: teflon) is to temperature more responsive (expanding with heat and contract with cold), especially, under low temperature (40 DEG C) Environmental Conditions, the sealability of ball valve will be had a strong impact on.And the position being arranged in valve body 2 as the spheroid gland nut 4,11 of sealing material 10 fixed bases easily produces sealing leak source.
2, in this ball-valve structure, the 3rd joint structure (the comprising sealing configuration) more complicated being connected with measuring instrument, and also its sealing configuration easily produces sealing surface leak source.
3, in this ball valve interface, the sealing of the second joint structure being connected with tonifying Qi pipeline is short of to some extent.
As can be seen here, although above-mentioned existing product has some superiority, still there are some urgently improved defects.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional, SF with temperature correction high sealing performance
6(sulphur hexafluoride) valve, mainly solve the existing technical problem of above-mentioned prior art, it can increase substantially the sealing of product, particularly can finely overcome the defects such as sealing material is short to more responsive, the easy aging life-span of temperature, corrosion resistance is poor, has improved SF
6valve seal performance.
For achieving the above object, technological scheme of the present invention is:
A kind of multi-functional, SF with temperature correction high sealing performance
6valve, it comprises valve body, on this valve body, have respectively connect the second interface of the first interface of user air chamber, built-in tonifying Qi self-sealing joint, for connecting the 3rd interface of instrument and for controlling the 4th interface of first interface break-make gas operation; It is characterized in that: the valve ball in this first interface has the floating type upper sealing ring seat of sealing material near a side setting of the second interface direction, this floating type upper sealing ring seat top has the floating type baffle plate of built-in tonifying Qi self-sealing joint, and this floating type baffle plate is connected with the inner of the spring of built-in tonifying Qi self-sealing joint.
Described multi-functional, the SF with temperature correction high sealing performance
6valve, is characterized in that: between this floating type upper sealing ring seat and valve body, have seal ring.
Described multi-functional, the SF with temperature correction high sealing performance
6valve, is characterized in that: this second jointing has the notch of density metal seal structure that can Reusability high sealing performance.
Described multi-functional, the SF with temperature correction high sealing performance
6valve, is characterized in that: the 3rd interface and instrument connector are integral type structure.
Compared with prior art, the present invention can increase substantially the sealing of product, particularly can finely overcome the defects such as sealing material is short to more responsive, the easy aging life-span of temperature, corrosion resistance is poor, has improved SF6 valve seal performance.
Brief description of the drawings
Fig. 1 is the structural representation of the controlled multi-pass ball valve group of existing sulfur hexafluoride gas.
In Fig. 1: 1-spheroid, 2-valve body, 3-seal ring, 4-spheroid gland nut, 5-seal ring, 6-seal ring, 7-handle connecting rod, 8-connecting rod lining, 9-handwheel, 10-sealing material, 11-spheroid gland nut, 12-back-up ring, 13-positioning aluminium ring, 14-spool positioning disk, 15-spring, 16-spool, 17-seal ring, 18-seal ring, 19-spool guide pin bushing, the self-styled spool of 20-, 21-spring, 22-spool positioning ring, 23-back-up ring, 24-back-up ring.
Fig. 2 is structural representation of the present invention.
In Fig. 2: 101-valve body, 102-valve ball, 103-sealing material, the floating type upper sealing ring seat of 104-, the floating type baffle plate of 105-, 106-spring, the built-in tonifying Qi self-sealing joint of 107-, 108-seal ring, the notch of the density metal seal structure that 109-can Reusability high sealing performance, 110-instrument, 111-instrument connector.
Embodiment
As shown in Figure 2, the invention discloses a kind of multi-functional, SF with temperature correction high sealing performance
6valve.As shown in the figure: it comprises valve body 101, on this valve body 101, have respectively connect the second interface of the first interface of user air chamber, built-in tonifying Qi self-sealing joint, for connecting the 3rd interface of instrument and for controlling the 4th interface of first interface break-make gas operation; Valve ball 102 in this first interface has the floating type upper sealing ring seat 104 of sealing material 103 near a side setting of the second interface direction, these floating type upper sealing ring seat 104 tops have the floating type baffle plate 105 of built-in tonifying Qi self-sealing joint 107, and this floating type baffle plate 105 is connected with the inner of the spring 106 of built-in tonifying Qi self-sealing joint 107.
The present invention passes through said structure, utilize spring 106 elastic force (inwardly) after compression, promote floating type baffle plate 105 and floating type upper sealing ring seat 104 transmits by spring 106, all the time add the sealing material 103 that is pressed in valve ball 102 both sides and realize the temperature correction of sealing, overcome sealing material 103 to temperature more responsive (expanding with heat and contract with cold), especially under low temperature (40 DEG C) environment, have a strong impact on the problem of the sealing of ball-valve structure, its valve inner structure in having improved ball-valve structure sealability is simplified, thereby the cost of part processing and the difficulty of valve assembling are reduced.
On the basis of said structure, as a kind of preferred structure, between this floating type upper sealing ring seat 104 and valve body 101, there is seal ring 108, further increase sealing.
On the basis of said structure, this second jointing has the notch 109 of density metal seal structure that can Reusability high sealing performance, and its can finely overcome the defects such as rubber seal is short to more responsive, the easy aging life-span of temperature, corrosion resistance is poor, has improved SF
6valve seal performance.
On the basis of said structure, the 3rd interface and instrument connector 111 are integral type structure, and advantage is: 1) reduced the sealing surface (leak source) in connecting; 2) the dial plate front that this structure can meet SF6 instrument can fix on any position on request, SF
6instrument and valve are easy to connect, reliable, have improved SF6 valve seal performance and usability.
Application of the present invention: the SF such as power transmission and transformation industry primary cut-out, high voltage cable, high-power transformer, high-voltage mutual inductor
6electrical engineering equipment.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application the scope of the claims change and modify, all should be technology category of the present invention.
Claims (4)
1. multi-functional, to there is a temperature correction high sealing performance SF
6valve, it comprises valve body (101), on this valve body (101), have respectively connect the second interface of the first interface of user air chamber, built-in tonifying Qi self-sealing joint, for connecting the 3rd interface of instrument and for controlling the 4th interface of first interface break-make gas operation; It is characterized in that: the valve ball (102) in this first interface has the floating type upper sealing ring seat (104) of sealing material (103) near a side setting of the second interface direction, this floating type upper sealing ring seat (104) top has the floating type baffle plate (105) of built-in tonifying Qi self-sealing joint (107), and this floating type baffle plate (105) is connected with the inner of the spring (106) of built-in tonifying Qi self-sealing joint (107).
2. multi-functional, the SF with temperature correction high sealing performance according to claim 1
6valve, is characterized in that: between this floating type upper sealing ring seat (104) and valve body (101), have seal ring (108).
3. multi-functional, the SF with temperature correction high sealing performance according to claim 1 and 2
6valve, is characterized in that: this second jointing has the notch (109) of density metal seal structure that can Reusability high sealing performance.
4. multi-functional, the SF with temperature correction high sealing performance according to claim 1 and 2
6valve, is characterized in that: the 3rd interface and instrument connector are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314604.3A CN104061341A (en) | 2014-07-03 | 2014-07-03 | Multifunctional SF6 valve with temperature compensation and high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314604.3A CN104061341A (en) | 2014-07-03 | 2014-07-03 | Multifunctional SF6 valve with temperature compensation and high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104061341A true CN104061341A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410314604.3A Pending CN104061341A (en) | 2014-07-03 | 2014-07-03 | Multifunctional SF6 valve with temperature compensation and high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104061341A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514895A (en) * | 2014-12-01 | 2015-04-15 | 华英伦科技(宁波)有限公司 | Ball valve of gas fuel pipeline provided with self-closing barometer connector |
| CN104747759A (en) * | 2015-02-05 | 2015-07-01 | 上海上芃电气有限公司 | Assembly valve facilitating verification of sulfur hexafluoride gas density relay |
| CN106352132A (en) * | 2016-09-14 | 2017-01-25 | 国家电网公司 | T-junction used for detecting pointer type SF6 gas density controller |
| CN108626441A (en) * | 2017-03-20 | 2018-10-09 | 靖江市长源液压机械有限公司 | A kind of two position three way directional control valve of band damping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0209633A1 (en) * | 1985-05-13 | 1987-01-28 | Georg Fischer Aktiengesellschaft | Shut-off valve with a spherical tap |
| CN201588977U (en) * | 2009-11-03 | 2010-09-22 | 埃德鲁（陕西）机电设备有限公司 | Multi-way spherical valve bank for sulfur hexafluoride gas |
| CN202176752U (en) * | 2011-08-17 | 2012-03-28 | 山东天安阀门有限公司 | Compressed natural gas bottle valve for cars |
| CN202580129U (en) * | 2012-05-23 | 2012-12-05 | 西安华伟自控设备有限公司 | Combined valve |
| CN203548984U (en) * | 2013-11-07 | 2014-04-16 | 华东阀门有限公司 | Low-temperature ball valve |
| CN204004544U (en) * | 2014-07-03 | 2014-12-10 | 叶平 | A kind of multi-functional, SF6 valve with temperature correction high sealing performance |
-
2014
- 2014-07-03 CN CN201410314604.3A patent/CN104061341A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0209633A1 (en) * | 1985-05-13 | 1987-01-28 | Georg Fischer Aktiengesellschaft | Shut-off valve with a spherical tap |
| CN201588977U (en) * | 2009-11-03 | 2010-09-22 | 埃德鲁（陕西）机电设备有限公司 | Multi-way spherical valve bank for sulfur hexafluoride gas |
| CN202176752U (en) * | 2011-08-17 | 2012-03-28 | 山东天安阀门有限公司 | Compressed natural gas bottle valve for cars |
| CN202580129U (en) * | 2012-05-23 | 2012-12-05 | 西安华伟自控设备有限公司 | Combined valve |
| CN203548984U (en) * | 2013-11-07 | 2014-04-16 | 华东阀门有限公司 | Low-temperature ball valve |
| CN204004544U (en) * | 2014-07-03 | 2014-12-10 | 叶平 | A kind of multi-functional, SF6 valve with temperature correction high sealing performance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514895A (en) * | 2014-12-01 | 2015-04-15 | 华英伦科技(宁波)有限公司 | Ball valve of gas fuel pipeline provided with self-closing barometer connector |
| CN104747759A (en) * | 2015-02-05 | 2015-07-01 | 上海上芃电气有限公司 | Assembly valve facilitating verification of sulfur hexafluoride gas density relay |
| CN106352132A (en) * | 2016-09-14 | 2017-01-25 | 国家电网公司 | T-junction used for detecting pointer type SF6 gas density controller |
| CN108626441A (en) * | 2017-03-20 | 2018-10-09 | 靖江市长源液压机械有限公司 | A kind of two position three way directional control valve of band damping |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |