CN107035878A - The non-maintaining flat gate valve of valve stem packing - Google Patents
The non-maintaining flat gate valve of valve stem packing Download PDFInfo
- Publication number
- CN107035878A CN107035878A CN201710272994.6A CN201710272994A CN107035878A CN 107035878 A CN107035878 A CN 107035878A CN 201710272994 A CN201710272994 A CN 201710272994A CN 107035878 A CN107035878 A CN 107035878A
- Authority
- CN
- China
- Prior art keywords
- valve
- board
- gate
- packing
- flashboard
- 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.)
- Pending
Links
- 238000012856 packing Methods 0.000 title claims abstract description 59
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000004519 grease Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 description 10
- 241001347978 Major minor Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
-
- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention provides a kind of non-maintaining flat gate valve of valve stem packing, it includes valve body, valve seat, flashboard, valve rod, bonnet, support, handwheel, valve seat is arranged in the cavity of valve body, flashboard is arranged between two valve seats, one end of valve rod is connected with flashboard, the other end of valve rod is connected by valve packing room and support with handwheel, wherein, valve packing room is arranged on support.Valve packing room in the present invention is arranged on support, and maintenance need not pull down bonnet when changing filler, need to only be pulled down support, just can carry out replacing maintenance to filler.
Description
Technical field
The present invention relates to valve technology field, more specifically for, more particularly to a kind of non-maintaining flat board of valve stem packing
Gate valve.
Background technology
Filler is the packing material of dynamic sealing, for filling valve filler chamber space, to prevent medium via valve rod and valve
The space leakage of door filler chamber.Packing seal is one of key position of valve products, wants the sealing effectiveness reached, on the one hand
It is the material of filler itself, the need for structure will adapt to mixture condition, another aspect is then rational filler installation method and from filling out
Expect to consider in the structure of letter to ensure reliable sealing.
In existing flat gate valve, when progress valve packing room is safeguarded, it is necessary to open bonnet to carry out maintenance work, entirely
Maintenance process needs to take a significant amount of time to carry out removing and installing for valve, completely bothers；And existing encapsulation scheme, with
The increase of the use time of valve, its performance can fail, and this fall time is often very of short duration.
The content of the invention
In view of the foregoing, it is an object to provide a kind of non-maintaining flat gate valve of valve stem packing, for solving
Prior art carries out needing to open bonnet in the maintenance process of valve packing room operating to flat gate valve, and existing valve
Filler is not ideal enough using duration
The problem of.
In order to achieve the above objects and other related objects, the present invention provides following technical scheme：
A kind of non-maintaining flat gate valve of valve stem packing, it includes valve body, valve seat, flashboard, valve rod, bonnet, support, handwheel,
Valve seat is divided into two, and is vertically spaced arranged in the cavity of valve body, and flashboard is arranged between two valve seats, one end of valve rod with
Flashboard is connected, and the other end of valve rod is connected by valve packing room and support with handwheel, and valve packing room is arranged on support.
Preferably, the valve packing room is the cylindrical sleeves with cylindrical annular inner chamber, and the valve rod passes through cylindrical sleeve
The cylindrical annular inner chamber of cylinder is connected with the handwheel on support, and diameter of the diameter less than cylindrical annular inner chamber of valve rod, described
Filler and Packing seat are provided between the outer wall of valve rod and the cylindrical annular inner chamber of cylindrical sleeves, filler is arranged above Packing seat.
Preferably, the filler is the ring packing that section is V-arrangement, and the ring packing is worn located at the valve packing
Interior is simultaneously set on the valve rod, and the V-arrangement in ring packing section is opening down.
Preferably, intracavitary is additionally provided with greasing ring, the greasing ring and the valve in the cylindrical annular of the cylindrical sleeves
Grease gun outside filler room is connected.
Preferably, the flashboard includes main gate-board and auxiliary gate-board, and the main gate-board and auxiliary gate-board are connected by spring carrier arm
Fixed, the two ends of spring carrier arm are fixed on the outer surface of main gate-board, and the outer surface of auxiliary gate-board is fixed in the middle part of spring carrier arm
On, when gate valve is closed, the flashboard includes main gate-board and auxiliary gate-board is merged into a rectangular flat.
As described above, the invention has the advantages that：
1st, valve packing room is arranged on support, and maintenance need not pull down bonnet when changing filler, need to only be pulled down support,
Just replacing maintenance can be carried out to filler.
2nd, factory's assembling and setting installs into the sealing of valve stem packing, it is not necessary to user's field adjustable, it is to avoid field adjustable power
The life-span of the inaccurate response filler of degree and the switch force of increase valve.
Brief description of the drawings
Scheme in order to illustrate the embodiments of the present invention more clearly, will make to required described in specific embodiment below
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of schematic diagram of the non-maintaining flat gate valve of valve stem packing of the invention.
Fig. 2 is the schematic diagram of valve packing room in the present invention.
Fig. 3 is the partial enlarged drawing of valve packing room in Fig. 2.
Fig. 4 is the principle schematic of filler in Fig. 2.
Fig. 5 is the schematic diagram of flashboard in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
In embodiments of the invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
Fig. 1 is refer to, a kind of non-maintaining flat gate valve of valve stem packing is present embodiments provided, as shown in figure 1, it includes valve
Body 1, valve seat 2, flashboard 3, valve rod 4, bonnet 5, support 7, handwheel 8, wherein, valve seat is divided into two, and is vertically spaced arranged at
In the cavity of valve body, flashboard is arranged between two valve seats, and one end of valve rod is connected with flashboard, and the other end of valve rod is filled out by valve
Material room and support are connected with handwheel, and valve packing room is arranged on support.
The operation principle of above-mentioned flat gate valve is：Flat gate valve, which is connected on pipeline, plays on-off action, rotates handwheel valve rod
Lifting, valve rod drives flashboard lifting to reach valve opening and the function of closing.
Above-mentioned flat gate valve has the beneficial effect that：
1st, valve packing room is arranged on support, and maintenance need not pull down bonnet when changing filler, need to only be pulled down support,
Just replacing maintenance can be carried out to filler.
2nd, factory's assembling and setting installs into the sealing of valve stem packing, it is not necessary to user's field adjustable, it is to avoid field adjustable power
The life-span of the inaccurate response filler of degree and the switch force of increase valve.
In a preferred embodiment, Fig. 2,3 are seen, valve packing room is the cylindrical sleeves with cylindrical annular inner chamber 61, institute
The cylindrical annular inner chamber 61 for stating valve rod 4 through cylindrical sleeves is connected with the handwheel 8 on support 7, and the diameter of valve rod 4 is less than cylinder
The diameter of annular cavity 61, is provided with filler 62 and filler between the outer wall of the valve rod and the cylindrical annular inner chamber of cylindrical sleeves
Pad 63, filler sets 62 and is placed in the top of Packing seat 63.
Wherein, in a preferred embodiment, Fig. 2,3 and 4 are seen, the filler is the ring packing with V-arrangement section, described
Ring packing wears in the valve packing room and is set on the valve rod, and the V-arrangement section in ring packing section
It is opening down.
Wherein, in a preferred embodiment, see that intracavitary is additionally provided with note in Fig. 2,3 and 4, the cylindrical annular of the cylindrical sleeves
Alicyclic ring 64, the greasing ring 64 is connected with the grease gun 9 outside the valve packing room.It can so be filled out into valve packing room
Injecting sealant is filled, injecting sealant can be between V-arrangement section, because the ring packing with V-arrangement section has capsule, even if valve
Door use time is long, enough allows annular to fill out both sides by the capsule performance of the ring packing in V-arrangement section and outwards deploys, so can protect
Demonstrate,prove the sealing of valve packing room.
In a preferred embodiment, the filler is the continuous helical ring pad with V-arrangement section.This spline structure can allow work
Factory, which disposably debugs to install, dispatches from the factory, it is not necessary to which user's field adjustable, valve packing is using V-type self-sealing packing and with secondary valve rod
Stop-leak compound injects, it is ensured that the sealing of valve rod.
Wherein, in conjunction with Fig. 5 and Fig. 1, the flashboard includes main gate-board 32 and auxiliary gate-board 31, the main gate-board 32 and secondary lock
Plate 31 is connected by spring carrier arm 33, and the two ends of spring carrier arm 33 are fixed on the outer surface of main gate-board 32, spring carrier arm
33 middle part is fixed on the outer surface of auxiliary gate-board 31, when gate valve is closed, and the flashboard includes main gate-board 32 and auxiliary gate-board 31
It is merged into a rectangular flat.
Specifically, main gate-board 32 is trapezoidal flat board, auxiliary gate-board 31 is also trapezoidal flat board；When gate valve is closed, the flashboard
A rectangular flat is merged into including main gate-board 32 and auxiliary gate-board 31.
More specifically, main gate-board 32 is provided with the first fixture and the second fixture, and auxiliary gate-board 31 is fixed provided with the 3rd
Part, not on the same line, the first end of spring carrier arm 33 is fixed on for the first fixture, the second fixture and the 3rd fixture
On one fixture, the second end of spring carrier arm 33 is fixed on the second fixture, and the middle part of spring carrier arm 33 bypasses the 3rd fixation
Part is simultaneously fixed on the 3rd fixture.
Above-mentioned flat gate valve employs the major-minor flashboard structure with incline configuration of uniqueness, and major-minor flashboard is in pre-pressure of the spring
In the presence of be brought into close contact, its sealing surface is parallel with sealing surface of seat, is not in that flashboard, valve seat are close during valve opening and closing
Occlusion between front cover.In valve opening, major-minor valve plate combination thickness is thinning, while discharging the pretightning force of valve seat, valve opening power
It is small；When valve is closed, major-minor flashboard thickness is to thickening direction change and producing to the thrust of valve seat, when auxiliary gate-board is closed in place
When, continue to close main gate-board, the axial thrust increase that at this moment relative displacement is produced on major-minor flashboard inclined-plane produces pressure to valve
Closing forces, so that reach valve is fully sealed performance.
Claims (6)
1. a kind of non-maintaining flat gate valve of valve stem packing, it includes valve body, valve seat, flashboard, valve rod, bonnet, support, handwheel, valve
Seat is divided into two, and is vertically spaced arranged in the cavity of valve body, and flashboard is arranged between two valve seats, one end of valve rod and lock
Plate is connected, and the other end of valve rod is connected by valve packing room and support with handwheel, it is characterised in that：Valve packing room is arranged at
On support.
2. the non-maintaining flat gate valve of valve stem packing according to claim 1, it is characterised in that：The valve packing room is tool
There are the cylindrical sleeves of cylindrical annular inner chamber, the valve rod connects through the cylindrical annular inner chamber of cylindrical sleeves with the handwheel on support
Connect, and diameter of the diameter less than cylindrical annular inner chamber of valve rod, in the outer wall of the valve rod and the cylindrical annular of cylindrical sleeves
Filler and Packing seat are provided between chamber, filler is arranged above Packing seat.
3. the non-maintaining flat gate valve of valve stem packing according to claim 2, it is characterised in that：The filler is that section is V
The ring packing of shape, the ring packing is worn in the valve packing room and is set on the valve rod, and annular is filled out
Expect that the V-arrangement in section is opening down.
4. the non-maintaining flat gate valve of valve stem packing according to claim 2, it is characterised in that：The cylinder of the cylindrical sleeves
Greasing ring is additionally provided with annular cavity, the greasing ring is connected with the grease gun outside the valve packing room.
5. the non-maintaining flat gate valve of valve stem packing according to claim 1, it is characterised in that：The flashboard includes main gate-board
And auxiliary gate-board, the main gate-board and auxiliary gate-board be connected by spring carrier arm, and main gate-board is fixed at the two ends of spring carrier arm
On outer surface, it is fixed in the middle part of spring carrier arm on the outer surface of auxiliary gate-board, when gate valve is closed, the flashboard includes main gate-board
A rectangular flat is merged into auxiliary gate-board.
6. the non-maintaining flat gate valve of valve stem packing according to claim 5, it is characterised in that：The main gate-board is trapezoidal flat
Plate, auxiliary gate-board is also trapezoidal flat board；When gate valve is closed, the flashboard includes main gate-board and auxiliary gate-board is merged into a rectangle and put down
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710272994.6A CN107035878A (en) | 2017-04-25 | 2017-04-25 | The non-maintaining flat gate valve of valve stem packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710272994.6A CN107035878A (en) | 2017-04-25 | 2017-04-25 | The non-maintaining flat gate valve of valve stem packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035878A true CN107035878A (en) | 2017-08-11 |
Family
ID=59536054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710272994.6A Pending CN107035878A (en) | 2017-04-25 | 2017-04-25 | The non-maintaining flat gate valve of valve stem packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035878A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107707A (en) * | 2019-06-10 | 2019-08-09 | 浙江金浦实业有限公司 | A kind of elasticity wedging type flat gate valve |
| CN114198518A (en) * | 2022-01-18 | 2022-03-18 | 克里特集团有限公司 | Parallel double-gate valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340204A (en) * | 1976-02-06 | 1982-07-20 | Smith International, Inc. | High pressure gate valve with preloaded, stacked, solid lubricated stem seals |
| CN201318460Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Expanding flat gate valve without flow guiding hole |
| CN202371196U (en) * | 2011-12-26 | 2012-08-08 | 浙江上一阀门有限公司 | Flat-plate gate valve |
| CN202402783U (en) * | 2012-01-05 | 2012-08-29 | 浙江贝尔控制阀门有限公司 | Valve with dual-seal structure |
| CN202746629U (en) * | 2012-09-03 | 2013-02-20 | 天津百利展发集团有限公司 | Double soft sealing flat-plate gate valve |
| CN203926865U (en) * | 2014-05-23 | 2014-11-05 | 凯斯通阀门有限公司 | A kind of novel wedge-type lengthens buried gate valve |
| CN105626869A (en) * | 2016-02-29 | 2016-06-01 | 苏州纽威阀门股份有限公司 | Sealing structure and gate valve with sealing structure |
-
2017
- 2017-04-25 CN CN201710272994.6A patent/CN107035878A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340204A (en) * | 1976-02-06 | 1982-07-20 | Smith International, Inc. | High pressure gate valve with preloaded, stacked, solid lubricated stem seals |
| CN201318460Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Expanding flat gate valve without flow guiding hole |
| CN202371196U (en) * | 2011-12-26 | 2012-08-08 | 浙江上一阀门有限公司 | Flat-plate gate valve |
| CN202402783U (en) * | 2012-01-05 | 2012-08-29 | 浙江贝尔控制阀门有限公司 | Valve with dual-seal structure |
| CN202746629U (en) * | 2012-09-03 | 2013-02-20 | 天津百利展发集团有限公司 | Double soft sealing flat-plate gate valve |
| CN203926865U (en) * | 2014-05-23 | 2014-11-05 | 凯斯通阀门有限公司 | A kind of novel wedge-type lengthens buried gate valve |
| CN105626869A (en) * | 2016-02-29 | 2016-06-01 | 苏州纽威阀门股份有限公司 | Sealing structure and gate valve with sealing structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107707A (en) * | 2019-06-10 | 2019-08-09 | 浙江金浦实业有限公司 | A kind of elasticity wedging type flat gate valve |
| CN114198518A (en) * | 2022-01-18 | 2022-03-18 | 克里特集团有限公司 | Parallel double-gate valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |