CN110469714A - A kind of on-line maintenance gate valve - Google Patents
A kind of on-line maintenance gate valve Download PDFInfo
- Publication number
- CN110469714A CN110469714A CN201910820303.0A CN201910820303A CN110469714A CN 110469714 A CN110469714 A CN 110469714A CN 201910820303 A CN201910820303 A CN 201910820303A CN 110469714 A CN110469714 A CN 110469714A
- Authority
- CN
- China
- Prior art keywords
- valve
- bottom plate
- toothed disc
- rubber sealing
- spiral spring
- 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.)
- Granted
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of on-line maintenance gate valves, include valve body, flashboard, valve rod, handwheel and valve deck, it is characterised in that: are equipped with installation cavity between the valve rod and valve deck, are equipped with stuffing seal and lower sealing device in installation cavity；The lower sealing device includes rubber sealing boot, toothed disc, spiral spring, bottom plate and adjusting actuator, the rubber sealing boot is set on valve rod, and the upper and lower side of rubber sealing boot is respectively equipped with upper flange plate and lower flange, the toothed disc is rotatably provided in rubber sealing boot periphery, and toothed disc is driven by adjusting actuator, the bottom plate is arranged in rubber sealing boot periphery, and bottom plate is fixedly linked with valve deck, the upper end tooth connection wheel disc of the spiral spring, the lower end of spiral spring connects bottom plate, lower cushion block is equipped between the bottom plate and lower flange, bit shift compensation block is equipped between toothed disc and upper flange plate.The present invention realizes on-line maintenance, time saving and energy saving, reduces maintenance cost.
Description
Technical field
The present invention relates to the improvement of gate valve invention more particularly to a kind of improvement of on-line maintenance gate valve inventions.
Background technique
In use, medium leaks traditional gate valve between valve rod and valve deck in order to prevent, uses at the position
Filler is sealed, and filler setting is compressed downwards in packing groove, and with gland, and filler inner surface is made to compress valve rod appearance
Face, filler outer surface compresses filler rooved face, thus realize sealing, after valve multiple open and close, filler inner surface
Multiple friction is carried out with stem exterior surface, filler inner surface is prone to wear, so that leakage is generated, and when filler is worn or is damaged
When, it needs to remove valve and is replaced, so taken time and effort, increase maintenance cost.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide, one kind is structurally reasonable, facilitates reality
With, time saving and energy saving on-line maintenance gate valve.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that realize: this kind of on-line maintenance lock
Valve includes valve body, flashboard, valve rod, handwheel and valve deck, and the valve deck is arranged in valve body upper end, and the valve rod can move up and down
It is threaded through on valve deck, and valve rod is moved up and down by handwheel driving, the flashboard is connected to valve rod lower end, it is characterised in that: described
It is equipped with installation cavity between valve rod and valve deck, is equipped with stuffing seal and lower sealing device in installation cavity；The lower sealing device
It include that rubber sealing boot, toothed disc, spiral spring, bottom plate and adjusting actuator, the rubber sealing boot are set in valve rod
On, and the upper and lower side of rubber sealing boot is respectively equipped with upper flange plate and lower flange, the toothed disc is rotatably provided in rubber
Sealing shroud periphery, and toothed disc is driven by adjusting actuator, the bottom plate is arranged in rubber sealing boot periphery, and lower fixation
Plate is fixedly linked with valve deck, the upper end tooth connection wheel disc of the spiral spring, and the lower end of spiral spring connects bottom plate, described lower solid
It is equipped with lower cushion block between fixed board and lower flange, bit shift compensation block is equipped between toothed disc and upper flange plate；The packing seal
Device includes positioning sleeve, upper cushion block, filler and gland, and in upper flange plate upper end, gland setting is being pacified for the upper cushion block setting
Behave affectedly upper end, gland is detachably connected with valve deck, and the filler is arranged between gland and upper cushion block, the upper flange plate, on
The positioning sleeve is set between cushion block, filler and gland and installation cavity wall, and the limit of positioning set upper side is determined in installation cavity upper port
Position set lower end, which is supported, is located at bit shift compensation block upper end.
The adjusting actuator includes gear, adjusting rod and spanner, and the adjusting rod is rotatably threaded through on valve deck, is adjusted
Pole upper end is connected with spanner, and adjusting rod lower end is connected with gear, and gear is engaged with toothed disc transmission.
Spiral spring periphery between the toothed disc and bottom plate is equipped with upper protective case and lower protective case, upper protective case with
Elasticity is connected between lower protective case.
It is equipped with upper basin inside the upper flange plate of the rubber sealing boot, is equipped with down inside the lower flange of rubber sealing boot
Basin.
The bit shift compensation block includes upper gasket, lower gasket and the butterfly bullet being arranged between upper gasket and lower gasket
Spring.
The upper end of the spiral spring is fixedly connected with the upper abaculus in toothed disc, and the lower end of spiral spring is fixedly connected
Lower abaculus in bottom plate.
The beneficial effects of the invention are as follows improved on-line maintenance gate valve, it is close that valve deck and the valve rod position of the valve are equipped with filler
Seal apparatus and lower sealing device are sealed, if filler wear-out failure, needs more using stuffing seal when usually using
When changing, adjusting lower sealing device carries out the sealing at valve deck and valve rod first, does not then need disassembly valve, so that it may directly more
It changes filler, after the completion of replacement, sheds the sealing of lower sealing device formation again, on-line maintenance is realized with this, it is time saving and energy saving,
Reduce maintenance cost.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is lower sealing device structure chart of the invention.
Specific embodiment
Attached drawing illustrates structure of the invention, further illustrates it in relation to details in conjunction with attached drawing below.The on-line maintenance
Gate valve includes valve body 1, flashboard 2, valve rod 3, handwheel 18 and valve deck 4, and the valve deck 4 is arranged in 1 upper end of valve body, and valve deck 4 includes
Assembling connected bonnet, and bottom flange, the valve rod 3, which can move up and down, to be threaded through on valve deck 4, and valve rod 3 is driven by handwheel 18
It moves up and down, valve rod 3 is equipped with the valve stem nut 17 being threadedly coupled, and handwheel 18 connects valve stem nut 17, and the flashboard 2 is connected to
3 lower end of valve rod is equipped with installation cavity, is equipped with stuffing seal and lower sealing device in installation cavity between the valve rod 3 and valve deck 4
10；The lower sealing device 10 includes rubber sealing boot 6, toothed disc 27, spiral spring 26, bottom plate 25 and adjusts driving
Part, the rubber sealing boot 6 is set on valve rod 3, and the upper and lower side of rubber sealing boot 6 is respectively equipped with upper flange plate 21 and laxative remedy
Blue disk 34, the toothed disc 27 is rotatably provided in 6 periphery of rubber sealing boot, and toothed disc 27 is driven by adjusting actuator, institute
It states bottom plate 25 to be arranged in 6 periphery of rubber sealing boot, and bottom plate 25 is fixedly linked with valve deck 4, the spiral spring 26
The lower end of upper end tooth connection wheel disc 27, spiral spring 26 connects bottom plate 25, between the bottom plate 25 and lower flange 34
Equipped with lower cushion block 5, bit shift compensation block 12 is equipped between toothed disc 27 and upper flange plate 21；The stuffing seal includes fixed
Position set 15, upper cushion block 13, filler 14 and gland 16, in 21 upper end of upper flange plate, the setting of gland 16 exists for the upper setting of cushion block 13
Installation cavity upper end, gland 16 are detachably connected with valve deck 4, and the filler 14 is arranged between gland 16 and upper cushion block 13, described
The positioning sleeve 15 is set between upper flange plate 21, upper cushion block 13, filler 14 and gland 16 and installation cavity wall, on positioning sleeve 15
End is equipped with peripheral outer lips, and limits in installation cavity upper port, and 15 lower end of positioning sleeve is supported and is located at 12 upper end of bit shift compensation block.
The adjusting actuator includes gear 22, adjusting rod 20 and spanner 19, and the adjusting rod 20 is rotatably threaded through
On valve deck 4,20 upper end of adjusting rod is connected with spanner 19, and 20 lower end of adjusting rod is connected with gear 22, and gear 22 and toothed disc 27 pass
Dynamic engagement.
26 periphery of spiral spring between the toothed disc 27 and bottom plate 25 is equipped with upper protective case 9 and lower protective case 7, on
Elasticity is connected between protective case 9 and lower protective case 7, i.e., upper protective case 9 can be relatively moved with lower protective case 7, and by compressed spring 8
It resets, upper protective case lower end is equipped with mobile guide protrusion, and corresponding lower protection set upper side is equipped with mobile guide groove, and protrusion is removable
It is dynamic to be placed in groove, the effect of protective case 9 and lower protective case 7 on this, when spiral spring 26 is under the rotation drive of toothed disc 27,
When internal diameter reduces or increases, which can ensure that each section of spiral spring 26 can have uniform reduction volume.
Upper basin 30 is equipped with inside the upper flange plate 21 of the rubber sealing boot 6, in the lower flange 34 of rubber sealing boot 6
Portion be equipped with lower basin 29, can ensure that thereon, lower flange it is compressed when, uniform variable, good airproof performance can be generated.
The bit shift compensation block 12 includes upper gasket 33, lower gasket 31 and is arranged between upper gasket 33 and lower gasket 31
Butterfly spring 32, the effect of the bit shift compensation block 12: when spiral spring 26 internal diameter reduce or increase when, spiral spring 26 can be changed
Height value, when 26 internal diameter of spiral spring reduces, and 26 height dimension of spiral spring increases, the butterfly spring 32 of bit shift compensation block 12 exists
Under the action of upper and lower washer, butterfly spring 32 closes up, and height value reduces.
The upper end of the spiral spring 26 is fixedly connected with the upper abaculus 28 in toothed disc 27, the lower end of spiral spring 26
The lower abaculus 24 being fixedly connected in bottom plate 25, and upper pad is equipped between the upper end of spiral spring 26 and bit shift compensation block 12
Plug 11 is equipped with lower padding 23 between the lower end and lower cushion block 5 of spiral spring 26.
The working principle of the invention, in use, driving valve stem nut 17 to rotate by rotation hand wheel 18 under nominal situation, by
It uses and is threadedly coupled between valve stem nut 17 and valve rod 3, therefore energy band ovable valve stem 3 and flashboard 2 move up and down, to realize
The open and close of valve.When the abrasion of filler 14 needs replacing, which drives adjusting rod 20 and gear by rotary spanner 19
22 rotations, form between gear 22 and toothed disc 27 and are connected by meshing transmission, therefore toothed disc 27 and then rotates, due to spiral spring 26
Upper end be fixedly connected with the upper abaculus 28 in toothed disc 27, the lower end of spiral spring 26 is fixedly connected embedded in bottom plate
Lower abaculus 24 in 25, and bottom plate 25 is fixed inside valve deck 4, therefore rotary teeth wheel disc 27 can change spiral spring 26
The size of inner surface diameter can drive rubber sealing boot 6 to compress 3 outer surface of valve rod when 26 inner surface diameter of spiral spring reduces,
To realize sealing, gland 16 is then opened, the operation of replacement filler 14 can be carried out.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of on-line maintenance gate valve, includes valve body, flashboard, valve rod, handwheel and valve deck, the valve deck is arranged on valve body
End, the valve rod can be moved up and down and be threaded through on valve deck, and valve rod is moved up and down by handwheel driving, and the flashboard is connected to valve rod
Lower end, it is characterised in that: be equipped with installation cavity between the valve rod and valve deck, be equipped with stuffing seal and lower sealing in installation cavity
Device；The lower sealing device includes rubber sealing boot, toothed disc, spiral spring, bottom plate and adjusts actuator, the rubber
Glue sealing shroud is set on valve rod, and the upper and lower side of rubber sealing boot is respectively equipped with upper flange plate and lower flange, the gear
Disk is rotatably provided in rubber sealing boot periphery, and toothed disc is driven by adjusting actuator, and the bottom plate is arranged in rubber
Sealing shroud periphery, and bottom plate is fixedly linked with valve deck, the upper end tooth connection wheel disc of the spiral spring, the lower end of spiral spring connects
Bottom plate is connect, lower cushion block is equipped between the bottom plate and lower flange, displacement is equipped between toothed disc and upper flange plate
Compensation block；The stuffing seal includes positioning sleeve, upper cushion block, filler and gland, and the upper cushion block is arranged in upper flange
Disk upper end, gland are arranged in installation cavity upper end, and gland is detachably connected with valve deck, filler setting gland and upper cushion block it
Between, the positioning sleeve, positioning set upper side limit are set between the upper flange plate, upper cushion block, filler and gland and installation cavity wall
Position is supported in installation cavity upper port, positioning sleeve lower end and is located at bit shift compensation block upper end.
2. on-line maintenance gate valve as described in claim 1, it is characterised in that: the adjusting actuator includes gear, adjusts
Bar and spanner, the adjusting rod are rotatably threaded through on valve deck, and adjusting rod upper end is connected with spanner, and the connection of adjusting rod lower end is with teeth
Wheel, gear are engaged with toothed disc transmission.
3. on-line maintenance gate valve as described in claim 1, it is characterised in that: the spiral between the toothed disc and bottom plate
Spring periphery is equipped with upper protective case and lower protective case, and elasticity is connected between upper protective case and lower protective case.
4. on-line maintenance gate valve as described in claim 1, it is characterised in that: set inside the upper flange plate of the rubber sealing boot
There is upper basin, is equipped with lower basin inside the lower flange of rubber sealing boot.
5. on-line maintenance gate valve as described in claim 1, it is characterised in that: the bit shift compensation block include upper gasket, under
Washer and the butterfly spring being arranged between upper gasket and lower gasket.
6. on-line maintenance gate valve as described in claim 1, it is characterised in that: the upper end of the spiral spring, which is fixedly connected, to be embedded in
Upper abaculus in toothed disc, the lower end of spiral spring are fixedly connected with the lower abaculus in bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820303.0A CN110469714B (en) | 2019-09-01 | 2019-09-01 | Online maintenance gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820303.0A CN110469714B (en) | 2019-09-01 | 2019-09-01 | Online maintenance gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110469714A true CN110469714A (en) | 2019-11-19 |
| CN110469714B CN110469714B (en) | 2020-12-01 |
Family
ID=68514492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910820303.0A Active CN110469714B (en) | 2019-09-01 | 2019-09-01 | Online maintenance gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469714B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201366A (en) * | 1978-03-13 | 1980-05-06 | Danko Oliver L | Bellows valve |
| CN2179500Y (en) * | 1993-12-03 | 1994-10-12 | 麻兆林 | Sluice valve having inner sealing and without leakage |
| CN2249339Y (en) * | 1995-09-11 | 1997-03-12 | 上海化纺控制技术公司 | Corrugated pipe sealing device for valve |
| CN2612853Y (en) * | 2003-04-13 | 2004-04-21 | 孙远 | Filling material sealing valve for continuous production |
| CN202418668U (en) * | 2011-12-08 | 2012-09-05 | 江苏宏泰石化机械有限公司 | Reversely-sealed valve capable of replacing packing on line |
| CN202901510U (en) * | 2012-11-23 | 2013-04-24 | 任道成 | Elastic valve stuffing press cover |
| CN203570569U (en) * | 2013-10-28 | 2014-04-30 | 中国成达工程有限公司 | Super charger piston type packing shaft seal structure for reciprocating pump |
| CN207349432U (en) * | 2017-08-31 | 2018-05-11 | 博爱金隅水泥有限公司 | A kind of sealing device for rotary shaft |
| CN208886115U (en) * | 2018-10-16 | 2019-05-21 | 江苏三益石油装备有限公司 | A kind of bellows valve rod seal apparatus |
| CN209245246U (en) * | 2018-12-06 | 2019-08-13 | 大连佐竹化工机械有限公司 | It is a kind of can on-line maintenance replacement sealing element dry operating apex combustion seal |
-
2019
- 2019-09-01 CN CN201910820303.0A patent/CN110469714B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201366A (en) * | 1978-03-13 | 1980-05-06 | Danko Oliver L | Bellows valve |
| CN2179500Y (en) * | 1993-12-03 | 1994-10-12 | 麻兆林 | Sluice valve having inner sealing and without leakage |
| CN2249339Y (en) * | 1995-09-11 | 1997-03-12 | 上海化纺控制技术公司 | Corrugated pipe sealing device for valve |
| CN2612853Y (en) * | 2003-04-13 | 2004-04-21 | 孙远 | Filling material sealing valve for continuous production |
| CN202418668U (en) * | 2011-12-08 | 2012-09-05 | 江苏宏泰石化机械有限公司 | Reversely-sealed valve capable of replacing packing on line |
| CN202901510U (en) * | 2012-11-23 | 2013-04-24 | 任道成 | Elastic valve stuffing press cover |
| CN203570569U (en) * | 2013-10-28 | 2014-04-30 | 中国成达工程有限公司 | Super charger piston type packing shaft seal structure for reciprocating pump |
| CN207349432U (en) * | 2017-08-31 | 2018-05-11 | 博爱金隅水泥有限公司 | A kind of sealing device for rotary shaft |
| CN208886115U (en) * | 2018-10-16 | 2019-05-21 | 江苏三益石油装备有限公司 | A kind of bellows valve rod seal apparatus |
| CN209245246U (en) * | 2018-12-06 | 2019-08-13 | 大连佐竹化工机械有限公司 | It is a kind of can on-line maintenance replacement sealing element dry operating apex combustion seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110469714B (en) | 2020-12-01 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201111 Address after: No.16 Jinbo Road, Sanhua Town, Yuhuan City, Taizhou City, Zhejiang Province Applicant after: ZHEJIANG HUIBO VALVE TECHNOLOGY Co.,Ltd. Address before: 325105 No. 63, Codaocun Codao North Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province Applicant before: Yongjia Qida Intellectual Property Consulting Co.,Ltd. |
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