CN107461507A - A kind of self compensation vacuum valve - Google Patents
A kind of self compensation vacuum valve Download PDFInfo
- Publication number
- CN107461507A CN107461507A CN201611261576.9A CN201611261576A CN107461507A CN 107461507 A CN107461507 A CN 107461507A CN 201611261576 A CN201611261576 A CN 201611261576A CN 107461507 A CN107461507 A CN 107461507A
- Authority
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- China
- Prior art keywords
- valve
- valve rod
- pressing plate
- rod
- self compensation
- 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.)
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- 239000000945 filler Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 241001062472 Stokellia anisodon Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
- F16K1/485—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member with a groove in the spindle
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to valve technology field, disclose a kind of self compensation vacuum valve, including the valve body with air inlet and gas outlet, valve rod, the valve seat located at body cavity, the flow control device being connected outside valve body with valve rod one end and the valve element coordinated in valve body with the valve rod other end, valve seat is tightly connected with body cavity wall, valve seat center is provided with valve opening, valve element is the tapered round platform in one end, and valve opening is provided with and protrudes from the guide groove that valve base surface is adapted to valve element taper；With being provided with valve rod with groove at valve stem contacts on the outside of valve body, groove filling flexible filler, valve rod are provided with the pressing plate being connected with valve rod dynamic balance, and the first surface of pressing plate is adapted to groove, the second surface of pressing plate is provided with the locking mechanism of connection pressing plate and valve rod, pressing plate and locking mechanism elastic connection.The vacuum valve adjusts the wear extent of center, valve rod automatic compensating spool and guide groove in the presence of being moved downward by filler extruding by valve element automatically, increases vacuum valve wearability, increases the service life.
Description
Technical field
The present invention relates to valve technology field, in particular it relates to a kind of self compensation vacuum valve for metal smelt industry.
Background technology
Vacuum valve refers to be used for isolating (cut-out) air-flow, regulation air flow rate, the vacuum for distributing air-flow in vacuum system
Element, realize that air-flow is adjusted by the opening and closing between valve element and valve seat.Because it possesses higher hermetic seal reliability, to air-flow
Resistance is small, operates the advantages that flexible and is widely used.
The vacuum valve of prior art is generally applicable to conventional vacuum environment, small using pressure and operating temperature range, due to
Environment temperature is not high, therefore vacuum valve valve closing member is sealed with rubber seal or metal o-ring, and temperature tolerance is not
By force.
And even if in the market occur can resistant to elevated temperatures vacuum valve, abandoned the application of rubber seal etc., but valve element with
Relative parallel movement forms rigidity opening and closing collision between valve seat, easily causes the relative wear of valve element and valve seat；Further, since excessively stream
Gas is high-temperature gas, under the impact of high temperature or high velocity air, gas thing grain cutting valve element and valve seat, causes valve element and valve seat
Wall thickness reduction, many places pit, damage are even perforated, after above-mentioned abrasion, because valve element and valve rod are fixed structure, in vacuum
Valve is under closure state, can not really realize that the real closure between valve element and valve seat contacts, and sealing is poor, is ultimately resulted in true
Empty valve leakage, causes unnecessary loss.
The content of the invention
Present invention solves the technical problem that the defects of being to be directed to prior art, there is provided it is a kind of it is simple in construction, can by from
Tune center is moved to realize the self compensation vacuum valve of automatic compensating spool and the prooving of valve seat.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of self compensation vacuum valve, including the valve body with air inlet and gas outlet, valve rod, the valve seat located at body cavity, set
In the flow control device being connected outside valve body with valve rod one end and the valve element coordinated in valve body with the valve rod other end, the valve
Seat is tightly connected with body cavity wall, and valve seat center is provided with valve opening, it is characterised in that the valve element is the tapered circle in one end
Platform, the valve opening are provided with and protrude from the guide groove that valve base surface is adapted to the valve element taper；On the outside of the valve body with valve rod
Contact position is provided with valve rod with groove, and filling flexible filler in the groove, the valve rod is provided with and is connected with valve rod dynamic balance
Pressing plate, the first surface of the pressing plate is adapted to groove, and the second surface of the pressing plate is provided with the lock of connection pressing plate and valve rod
Locking structure, pressing plate and locking mechanism elastic connection.
The air inlet and gas outlet Relative vertical of the valve body are located on valve body, wherein the center of gas outlet and the valve rod
Central coaxial, air inlet is on valve body between valve seat and valve rod.
The valve rod includes valve rod bar portion, it is preferable that the valve rod bar portion is on the outside of valve body to inner side in ascending
Pyramidal structure.
Specifically, it is further to strengthen the self compensation effect of the vacuum valve, the valve rod bar portion is set to pyramidal structure,
When being advantageous to valve rod bar portion and the flexible filler contacting in groove, flexible filler is down wriggled so as to enter under the drive of pressing plate
The power that pushes of one step to one increase of valve rod bar portion of pyramidal structure, reaches automatic compensating spool and valve seat when closing contact
The amount of being worn.
Preferably, to make the valve element and valve seat preferably align cooperation, the taper of the valve element is set to 3 °~6 °, kept away
It is excessive taper is exempted from, valve element and the contact surface of valve seat accumulate small caused the problem of contacting not tight and guide effect difference；Also avoid simultaneously
During zero draft, abrasion aggravation problem caused by valve element forms the rigid collision of stress concentration with valve seat.
It is further preferred that the taper of the valve element is 3.2 °, under the taper, the contact area of valve element and valve seat is most
Greatly, best guide effect and sealing effectiveness can be played.
The valve rod also includes valve rod neck and the valve rod head being connected with valve rod bar portion.
The valve element is provided with inner chamber, inner chamber be provided with the fixed plate one of the valve rod head contact and with the valve rod neck
The fixed plate two of flexible connection, the fixed plate one are tightly connected with valve core cavity wall respectively with fixed plate two.
Specifically, the center of fixed plate two is provided with the centre bore being flexibly connected with the valve rod neck, the fixed plate
One is closed plate, it is only necessary to the valve rod head contact.
The distance of the fixed plate one and fixed plate two avoids valve rod with valve element in stem shaft just to block valve rod head
To doing relative motion.
It is that face contacts, linear contact lay or point contact that the valve rod head, which can be rectangular configuration, spherical structure etc. with fixed plate two,
Structure.
Preferably, to realize the automatic tune center function of the valve rod, the valve rod head is set to spherical structure.
Specifically, spherical valve rod head is contacted with fixed plate two for point, and cooperation valve rod neck is flexibly connected with valve element,
Valve element can be made to do relatively micro- skew relative to valve rod.Avoid when valve rod head is that rectangular configuration etc. with fixed plate two is that face contacts
Or during linear contact lay, valve element is relatively fixed with stem position, lacking for respective offsets adjustment can not be made according to the abrasion condition of valve seat
Point.
Preferably, for the connection between the pressing plate and valve rod using conventional bolt connection, the locking mechanism is nut.
To realize the elastic connection between the nut and pressing plate, protruding from outside the bolt that pressing plate one end is connected with nut
Nut check is used after the sheathed spring of surface again, locking degree is until the spring has certain decrement to be limited.
Specifically, the connection end of the valve rod and pressing plate is flanged structure, on the pressing plate centered on pressing plate centre bore
It is arranged with the mounting hole being adapted to the valve rod flanged structure.
To save material cost, the mounting hole of the pressing plate is preferably 2.
It is further preferred that the mounting hole of the valve rod flanged structure is 2.
To make guide groove and the valve seat realize preferably positioning and stablizing effect, it is preferable that the guide groove and valve seat
Connection end extends to another surface for protruding from valve seat.
Specifically, connected mode is welding between the guide groove and valve seat, protrudes from the guide groove on another surface of valve seat
One end is guide groove welding ends, is subjected to when being welded beneficial to the vacuum valve by gas outlet.
Preferably, the flexible filler can be pitch prill, polysulfide sealing compound, polyurethane it is close to cream, soft graphite etc. have it is excellent
Different morphotropism and the material of mobility.
It is further preferred that the flexible filler is the soft of the excellent performances such as resistance to pressure, pliability, plasticity, high temperature resistant
Property graphite.
The flow control device can be handwheel manual control mechanism, pneumatic control mechanism, hydraulic control or electromagnetism
Controlling organization.Preferably hydraulic control, it is easy to accomplish the linear motion of valve rod, reaction speed are fast.
The self compensation vacuum valve is applied to metal smelt industry, excellent for collecting the high-temperature metal gas distilled
Selection of land, the self compensation vacuum valve are made of exotic material.
It is further preferred that the self compensation vacuum valve is made of resistance to 1100 DEG C of high-temperature materials.
Connected mode is welding between the valve seat and valve body, valve rod and valve body, realizes integrally-built sealing and steady
It is qualitative.
Compared with prior art, the advantage of the invention is that：
Self compensation vacuum valve of the present invention, by the filling flexible graphite in valve rod groove, set between nut and pressing plate
Spring, pressing plate is set to be pressed down against soft graphite under the elastic force effect of spring, so as to drive the valve rod of pyramidal structure to move down
Carry out the wear extent of compensating spool or valve seat.
Each structure of vacuum valve cooperate realize the vacuum valve continue compensate wear extent automatically, realize it is described very
The wearability of empty valve, extends service life.
The taper fit of the valve element and guide groove is set, and good guide effect is not only served to valve rod and valve element,
And reduce caused by the valve element concentrates rigid collision with valve seat stress and wear.
The valve rod and valve element are flexibly connected by fixed plate two and valve rod neck, and the valve rod head is set to spherical,
Valve rod contact with fixed plate one is set to be contacted for point, so as to realize that valve element is carried out necessarily with respect to valve rod under the control of spherical head
Radial deflection, so as to the wear extent of automatic compensating spool and valve seat.
The vacuum valve just expects to be made using high temperature resistant, suitable for the excessively stream of high-temperature gas.
Brief description of the drawings
Fig. 1 is the sectional view of the self compensation vacuum valve.
Embodiment
With reference to embodiment, the present invention is further illustrated.Wherein, being given for example only property of accompanying drawing illustrates,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by accompanying drawing.
As shown in figure 1, a kind of self compensation vacuum valve, including with air inlet 11 and the valve body of gas outlet 12 1, valve rod 2, set
Valve seat 3 in body cavity 13, the flow control device 4 being connected outside valve body with the one end of valve rod 2 and in valve body and valve
The valve element 5 that the other end of bar 2 coordinates, wherein valve seat 3 are tightly connected with body cavity wall, and the center of valve seat 3 is provided with valve opening 31；Valve element 5
For the tapered round platform in one end, valve opening 31 is provided with and protrudes from the surface of valve seat 3 and the guide groove 32 being adapted to the taper of valve element 5；Valve
External side is being provided with valve rod 14 with groove with the contact position of valve rod 2, and filling flexible filler 6 in groove, valve rod 2 is provided with and valve rod
The pressing plate 7 of 14 dynamic balances connection, the first surface of pressing plate 7 are adapted to groove, and the second surface of pressing plate is provided with connection pressing plate 7 and valve
The locking mechanism 81 of post 14, pressing plate 7 and the elastic connection of locking mechanism 81.
The air inlet 11 and the Relative vertical of gas outlet 12 of valve body are located on valve body 1, wherein the center of gas outlet 12 and valve rod 2
Central coaxial, air inlet 11 is on valve body between valve seat 3 and valve rod 14.
Turn-on flow rate governor motion 4, valve element 5 is set to depart from guide groove 32, gas enters vacuum valve from air inlet 11, leads to
Cross guide groove 32 and enter gas outlet 12, realize excessively stream of the gas in vacuum valve.
Valve rod 2 includes valve rod bar portion, and valve rod bar portion is in ascending pyramidal structure to inner side on the outside of valve body.
Specifically, further to strengthen the self compensation effect of the vacuum valve, valve rod bar portion is set to pyramidal structure, is advantageous to
When valve rod bar portion contacts with the flexible filler 6 in groove, flexible filler 6 is down wriggled so as to further under the drive of pressing plate 7
To the power pushed of one increase of valve rod bar portion of pyramidal structure, reach automatic compensating spool 5 and valve seat 3 and closing when contacting
The amount of being worn.
To make valve element 5 and valve seat 3 preferably align cooperation, the taper of valve element 5 is set to 3 °~6 °, avoids taper mistake
Greatly, the problem of contacting not tight and guide effect difference caused by valve element and contact surface of valve seat product are small；When it also avoid zero draft simultaneously,
Abrasion aggravation problem caused by valve element forms the rigid collision of stress concentration with valve seat.
The taper of valve seat 3 is accordingly 3 °~6 ° simultaneously.
By the taper of valve element 5 it is preferably 3.2 ° in the present embodiment, under the taper, the contact area of valve element 5 and valve seat 3 is most
Greatly, best guide effect and sealing effectiveness can be played.
Valve rod 2 also includes valve rod neck 21 and the valve rod head 22 being connected with valve rod bar portion.
Valve element 5 is provided with inner chamber, and inner chamber is movable provided with the fixed plate 1 contacted with valve rod head 22 and with valve rod neck 21
The fixed plate 2 52 of connection, wherein fixed plate 1 are tightly connected with valve core cavity wall respectively with fixed plate 2 52.
Specifically, the center of fixed plate 2 52 is provided with the centre bore being flexibly connected with valve rod neck 21, and fixed plate 1 is
Closed plate, it is only necessary to contacted with valve rod head 22.
The distance of fixed plate 1 and fixed plate 2 52 avoids valve rod 2 with valve element 5 in valve just to block valve rod head 22
Bar axially does relative motion.
It is that face contacts, linear contact lay or point contact that valve rod head 22, which can be rectangular configuration, spherical structure etc. with fixed plate 2 52,
Structure.
In the present embodiment, to realize the automatic tune center function of the valve rod, by 22 preferably spherical structure of valve rod head.
Specifically, spherical valve rod head contacts with fixed plate 2 52 for point, coordinates the activity of valve rod neck 21 and valve element 5
Connection, can make valve element 5 do relatively micro- skew relative to valve rod 2.Avoid when valve rod head 22 is rectangular configuration etc. and fixed plate
2 52 be that face contacts or during linear contact lay, and valve element 5 is relatively fixed with the position of valve rod 2, can not make phase according to the abrasion condition of valve seat 3
The shortcomings that adjustment should be offset.
When that need to close vacuum valve, flow control mechanism 4 is adjusted, valve rod 2 closes with movable valve plug 5 and guide groove 32, such as
Guide groove 32 or valve element 5 have abrasion, then power unbalance ground when valve rod head 22 coordinates automatic decision valve element 5 and guide groove 32
Side so that valve element 5 to this at adjust, realize the full contact of valve element 5 and guide groove 32.
Meanwhile the elastomeric element on pressing plate 7 will promote pressing plate 7 to press flexible filler 6, so as to drive the valve of pyramidal structure
Bar 2 carries out downwards certain displacement, coordinates the position adjustment of valve element 5, and the abrasion to valve element 5 and valve seat 3 is compensated automatically.
Being connected using bolt 8 between pressing plate 7 and valve rod 14, locking mechanism 81 is nut.
To realize the elastic connection between nut and pressing plate 7, protruding from outside the bolt 8 that the one end of pressing plate 7 is connected with nut
Nut check is used after surface sheathed spring 9 again, locking degree is until spring 9 has certain decrement to be limited.
To ensure that the pressure of spring 9 is directly passed to pressing plate 7, therefore the nut portion of bolt 8 must be located at valve rod 14
On, bolt 8 passes through the mounting hole of valve rod 14, is then passed through the mounting hole of pressing plate 7, then through the outer surface of bolt 8 after pressing plate 7
Sheathed spring 9, finally bolt 8 is locked with nut again, make the elastic force for possessing spring-compressed between nut and pressing plate 7.
Specifically, the connection end of valve rod 14 and pressing plate 7 be flanged structure, on pressing plate 7 centered on pressing plate centre bore symmetrically
Provided with the mounting hole being adapted to the flanged structure of valve rod 14.
To save material cost in the present embodiment, the mounting hole of pressing plate 7 is preferably 2, while the flanged structure of valve rod 14
Mounting hole is also 2.
To make guide groove 32 and valve seat 3 realize preferably positioning and stablizing effect, the connection end of guide groove 32 and valve seat 3 extends
To another surface for protruding from valve seat 3.
Specifically, connected mode is welding between guide groove 32 and valve seat 3, protrudes from the guide groove on 3 another surface of valve seat
One end is guide groove welding ends 33, is subjected to when being welded beneficial to the vacuum valve by gas outlet 12.
Flexible filler 6 in the present embodiment is preferably for excellent performances such as resistance to pressure, pliability, plasticity, high temperature resistants
Soft graphite.
To make valve rod 2 rapidly realize linear motion, flow control device 4 is set to hydraulic control.
The self compensation vacuum valve of the present invention is applied to metal smelt industry, for collecting the high-temperature metal gas distilled
Body, therefore the self compensation vacuum valve is made of resistance to 1100 DEG C of high-temperature materials.
The valve seat 3 and valve body 1 of vacuum valve described in the present embodiment, connected mode is welding between valve rod 14 and valve body 1, is realized
Integrally-built sealing and stability.
Obviously, above-described embodiment is only intended to clearly illustrate technical scheme example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the field, on the basis of the above description also
It can make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included in right of the present invention will
Within the protection domain asked.
Claims (10)
1. a kind of self compensation vacuum valve, including the valve body with air inlet and gas outlet, valve rod, the valve seat located at body cavity,
The flow control device being connected outside valve body with valve rod one end and the valve element coordinated in valve body with the valve rod other end, it is described
Valve seat is tightly connected with body cavity wall, and valve seat center is provided with valve opening, it is characterised in that the valve element is the tapered circle in one end
Platform, the valve opening are provided with and protrude from the guide groove that valve base surface is adapted to the valve element taper；On the outside of the valve body with valve rod
Contact position is provided with valve rod with groove, and filling flexible filler in the groove, the valve rod is provided with and is connected with valve rod dynamic balance
Pressing plate, the first surface of the pressing plate is adapted to groove, and the second surface of the pressing plate is provided with the lock of connection pressing plate and valve rod
Locking structure, pressing plate and locking mechanism elastic connection.
2. self compensation vacuum valve according to claim 1, it is characterised in that the valve rod includes valve rod bar portion, the valve rod
Bar portion is to inner side being in ascending pyramidal structure on the outside of valve body.
3. self compensation vacuum valve according to claim 2, it is characterised in that the taper of the valve element is 3 °~6 °.
4. self compensation vacuum valve according to claim 3, it is characterised in that the valve element is provided with inner chamber, and the valve rod also wraps
The valve rod neck being connected with valve rod bar portion and valve rod head are included, the inner chamber is provided with the fixed plate one with the valve rod head contact
With the fixed plate two being flexibly connected with the valve rod neck, the fixed plate one seals with valve core cavity wall respectively with fixed plate two
Connection.
5. self compensation vacuum valve according to claim 4, it is characterised in that the valve rod head is spherical.
6. according to self compensation vacuum valve described in Claims 1 to 5 any one, it is characterised in that the pressing plate and valve stud
Connection, the locking mechanism is nut, and the elastic connection between the nut and pressing plate connects for spring, and the spring housing is located at
Bolt outer surface.
7. according to self compensation vacuum valve described in Claims 1 to 5 any one, it is characterised in that the guide groove and valve seat
Connection end extends to another surface for protruding from valve seat.
8. according to self compensation vacuum valve described in Claims 1 to 5 any one, it is characterised in that the flexible filler is flexibility
Graphite.
9. according to self compensation vacuum valve described in Claims 1 to 5 any one, it is characterised in that the flow control device is
Hydraulic control.
10. according to self compensation vacuum valve described in Claims 1 to 5 any one, it is characterised in that using exotic material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261576.9A CN107461507A (en) | 2016-12-30 | 2016-12-30 | A kind of self compensation vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261576.9A CN107461507A (en) | 2016-12-30 | 2016-12-30 | A kind of self compensation vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461507A true CN107461507A (en) | 2017-12-12 |
Family
ID=60545893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611261576.9A Pending CN107461507A (en) | 2016-12-30 | 2016-12-30 | A kind of self compensation vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022039055A (en) * | 2020-08-27 | 2022-03-10 | 株式会社不二工機 | Motor-operated valve |
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| CN202691077U (en) * | 2012-06-19 | 2013-01-23 | 江苏盐电阀门有限公司 | High-pressure self-sealing stop valve |
| CN103062419A (en) * | 2012-08-27 | 2013-04-24 | 常州埃姆基冷冻设备有限公司 | Steel forged refrigeration valve |
| CN102966748A (en) * | 2012-11-16 | 2013-03-13 | 上海宇航系统工程研究所 | Floating bulb type cut-off valve |
| CN203115121U (en) * | 2013-04-02 | 2013-08-07 | 浙江贝尔控制阀门有限公司 | Automatic centering valve internal part adjusting valve |
| CN203272809U (en) * | 2013-06-03 | 2013-11-06 | 温州凯林阀门有限公司 | Automatic centering internal thread stop valve |
| CN104613223A (en) * | 2015-01-30 | 2015-05-13 | 胡维毅 | Self-acting type manual multifunctional mortar flow regulating valve |
| CN205715710U (en) * | 2015-09-16 | 2016-11-23 | 吴忠仪表有限责任公司 | Waste heat boiler with three spheres from centering spool |
| CN205278394U (en) * | 2015-12-30 | 2016-06-01 | 江苏海达船用阀业有限公司 | Novel resistant high pressure isolating valve |
| CN206329752U (en) * | 2016-12-30 | 2017-07-14 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
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| JP2022039055A (en) * | 2020-08-27 | 2022-03-10 | 株式会社不二工機 | Motor-operated valve |
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