CN206329752U - A kind of self compensation vacuum valve - Google Patents
A kind of self compensation vacuum valve Download PDFInfo
- Publication number
- CN206329752U CN206329752U CN201621481212.7U CN201621481212U CN206329752U CN 206329752 U CN206329752 U CN 206329752U CN 201621481212 U CN201621481212 U CN 201621481212U CN 206329752 U CN206329752 U CN 206329752U
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- Prior art keywords
- valve
- valve rod
- pressing plate
- rod
- self compensation
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Abstract
The utility model 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 with valve rod one end outside valve body and the valve element coordinated with the valve rod other end in valve body, 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 gathering sill 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 is provided with the pressing plate being connected with valve rod dynamic balance, and the first surface of pressing plate is adapted to groove, locking mechanism of the second surface of pressing plate provided with 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 gathering sill 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 utility model is related to valve technology field, in particular it relates to which a kind of self compensation for metal smelt industry is true
Empty valve.
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, realizes 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, be widely used the advantages of operate flexible.
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.
Even and if in the market occur in that 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 and even perforate, after above-mentioned abrasion, because valve element and valve rod are fixed structure, in vacuum
Valve is under closure state, it is impossible to really realize that the real closure between valve element and valve seat is contacted, sealing is poor, is ultimately resulted in true
Empty valve leakage, causes unnecessary loss.
The content of the invention
The utility model solve technical problem be for prior art defect there is provided one kind it is simple in construction, can lead to
Automatic tune center is crossed to realize the self compensation vacuum valve of automatic compensating spool and the prooving of valve seat.
The technical scheme that the utility model 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 located at body cavity
Seat, 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 that one end is tapered
Round platform, the valve opening is provided with protruding from the gathering sill that valve base surface is adapted to the valve element taper；On the outside of the valve body with
Filling flexible filler in valve rod with groove, the groove is provided with valve stem contacts, the valve rod is provided with and valve rod dynamic balance
The pressing plate of connection, the first surface of the pressing plate is adapted to groove, and the second surface of the pressing plate is provided with connection pressing plate and valve rod
Locking mechanism, 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 the self compensation effect of further strengthening the vacuum valve, the valve rod bar portion is set to pyramidal structure,
When being conducive to valve rod bar portion and the flexible filler being contacted in groove, flexible filler down wriggles 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
Exempted from taper excessive, valve element and contact surface of valve seat product it is small caused by contact is not tight and the problem of guide effect difference；Also avoid simultaneously
During zero draft, valve element and abrasion aggravation problem caused by the rigid collision of valve seat formation stress concentration.
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 two is tightly connected with valve core cavity wall.
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 is just to block valve rod head, it is to avoid valve rod is with valve element in stem shaft
To doing relative motion.
The valve rod head can be that rectangular configuration, spherical structure etc. are that face is contacted, linear contact lay or point are contacted 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. is that face is contacted with fixed plate two
Or during linear contact lay, valve element is relatively fixed with stem position, it is impossible to make lacking for respective offsets adjustment according to the abrasion condition of valve seat
Point.
Preferably, the connection between the pressing plate and valve rod is using conventional bolt connection, and 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 gathering sill and the valve seat realize preferably positioning and stablizing effect, it is preferable that the gathering sill and valve seat
Connection end extends to another surface for protruding from valve seat.
Specifically, connected mode is welding between the gathering sill and valve seat, protrudes from the gathering sill on another surface of valve seat
One end is gathering sill 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 is 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 is 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 utility model has the advantage of：
Self compensation vacuum valve described in the utility model, by the filling flexible graphite in valve rod groove, in nut and pressing plate
Between spring is set, make pressing plate spring elastic force effect under be pressed down against soft graphite, so as to drive the valve rod of pyramidal structure
Move down the wear extent for coming 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 gathering sill is set, and good guide effect is not only served to valve rod and valve element,
And the valve element is reduced with being worn and torn caused by valve seat stress concentration rigid collision.
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 that the wear extent of automatic compensating spool and valve seat.
The vacuum valve just expects to be made using high temperature resistant, it is adaptable to 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
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, 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 is 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 gathering sill 32 being adapted to the taper of valve element 5；Valve
External side is being provided with filling flexible filler 6 in valve rod 14 with groove, groove with the contact position of valve rod 2, and 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 is 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, makes valve element 5 depart from gathering sill 32, gas enters vacuum valve from air inlet 11, leads to
Cross gathering sill 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, it is the self compensation effect of further strengthening the vacuum valve, valve rod bar portion is set to pyramidal structure, is conducive to
When valve rod bar portion is contacted 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 that automatic compensating spool 5 and valve seat 3 are being closed 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 °, it is to avoid taper mistake
Greatly, the problem of tight and guide effect is not poor is contacted caused by valve element and contact surface of valve seat product are small；When it also avoid zero draft simultaneously,
Valve element and abrasion aggravation problem caused by the rigid collision of valve seat formation stress concentration.
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 is just to block valve rod head 22, it is to avoid valve rod 2 is with valve element 5 in valve
Bar axially does relative motion.
Valve rod head 22 can be that rectangular configuration, spherical structure etc. are that face is contacted, linear contact lay or point are contacted with fixed plate 2 52
Structure.
In the present embodiment, to realize the automatic tune center function of the valve rod, by the preferably spherical structure in valve rod head 22.
Specifically, spherical valve rod head is contacted 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 is contacted or during linear contact lay, and valve element 5 is relatively fixed with the position of valve rod 2, it is impossible to make phase according to the abrasion condition of valve seat 3
The shortcoming of adjustment should be offset.
When that need to close vacuum valve, flow control mechanism 4 is adjusted, valve rod 2 is closed with movable valve plug 5 with gathering sill 32, such as
Gathering sill 32 or valve element 5 have abrasion, then power unbalance ground when valve rod head 22 coordinates automatic decision valve element 5 and gathering sill 32
Side so that valve element 5 to this at adjust, realize the full contact of valve element 5 and gathering sill 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.
Use bolt 8 between pressing plate 7 and valve rod 14 is connected, and 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, is finally locked with nut to bolt 8 again, makes 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 is symmetrical centered on pressing plate centre bore on flanged structure, pressing plate 7
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 gathering sill 32 and valve seat 3 realize preferably positioning and stablizing effect, the connection end of gathering sill 32 and valve seat 3 extends
To another surface for protruding from valve seat 3.
Specifically, connected mode is welding between gathering sill 32 and valve seat 3, protrudes from the gathering sill on another surface of valve seat 3
One end is gathering sill 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 of vacuum valve described in the present embodiment, valve rod 14 and valve body 1 are formed in one structure, realize integrally-built
Sealing and stability.
Obviously, above-described embodiment is only intended to clearly illustrate the technical solution of the utility model example, and simultaneously
Non- is the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give thoroughly all embodiments
Lift.All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this
Within the protection domain of utility model right requirement.
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 is provided with and protrudes from the gathering sill 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 filling flexible filler in valve rod with groove, the groove, and 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, lock of the second surface provided with connection pressing plate and valve rod of the pressing plate
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 in ascending pyramidal structure on the outside of valve body to inner side.
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, the valve rod is also wrapped
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 two is tightly connected with valve core cavity wall.
5. self compensation vacuum valve according to claim 4, it is characterised in that the valve rod head is spherical.
6. the self compensation vacuum valve according to 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 is connected for spring, and the spring housing is located at
Bolt outer surface.
7. the self compensation vacuum valve according to Claims 1 to 5 any one, it is characterised in that the gathering sill and valve seat
Connection end extends to another surface for protruding from valve seat.
8. the self compensation vacuum valve according to Claims 1 to 5 any one, it is characterised in that the flexible filler is flexibility
Graphite.
9. the self compensation vacuum valve according to Claims 1 to 5 any one, it is characterised in that the flow control device is
Hydraulic control.
10. the self compensation vacuum valve according to Claims 1 to 5 any one, it is characterised in that use exotic material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481212.7U CN206329752U (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 |
|---|---|---|---|
| CN201621481212.7U CN206329752U (en) | 2016-12-30 | 2016-12-30 | A kind of self compensation vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329752U true CN206329752U (en) | 2017-07-14 |
Family
ID=59294129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481212.7U Active CN206329752U (en) | 2016-12-30 | 2016-12-30 | A kind of self compensation vacuum valve |
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| Country | Link |
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| CN (1) | CN206329752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
| CN113324047A (en) * | 2021-06-04 | 2021-08-31 | 郑州厨盾消防科技有限公司 | Kitchen gas valve and kitchen gas cut-off control system |
-
2016
- 2016-12-30 CN CN201621481212.7U patent/CN206329752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
| CN113324047A (en) * | 2021-06-04 | 2021-08-31 | 郑州厨盾消防科技有限公司 | Kitchen gas valve and kitchen gas cut-off control system |
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