CN208845762U - Overcritical forging double disc electric gate valve - Google Patents
Overcritical forging double disc electric gate valve Download PDFInfo
- Publication number
- CN208845762U CN208845762U CN201820715328.5U CN201820715328U CN208845762U CN 208845762 U CN208845762 U CN 208845762U CN 201820715328 U CN201820715328 U CN 201820715328U CN 208845762 U CN208845762 U CN 208845762U
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- Prior art keywords
- valve
- flashboard
- ring
- seat
- deck
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- Expired - Fee Related
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Abstract
A kind of overcritical forging double disc electric gate valve, including valve body, seal receptacle, flashboard bottom cover, left flashboard, central axis, right flashboard, flashboard upper cover, valve rod, enhancing soft graphite combined sealing ring, sealing ring, adjustment ring, bolts and nuts, bracket, thrust ball bearing, valve stem nut, bolts and nuts, electric device；Valve body is equipped with inlet and outlet, inlet and outlet are on an axis, the runner lower part that the central axial line of this vertical axis is equipped with valve body is equipped with valve seat slot, the lower end inserted valve seat slot of left flashboard, right flashboard, left flashboard, right flashboard central axis two sides and fixed with central axis；Valve rod upper end is matched with valve stem nut screw thread, and is supported on the thrust ball bearing on bracket, and support vertical is erected on valve body in valve rod, and electric device exports the rotation driving stem nut of screw thread.Equipped with valve deck, Packing seat, composite filling, packing press ring, gland are wrapped in valve rod in valve deck.
Description
Technical field:
The utility model relates to double-gate plate valves, are especially adapted for use in the overcritical forging that petroleum, chemical industry, power field are applied
Double disc electric gate valve.
Background technique:
With the high speed development of the national economy in China, the steam pipe in the fields such as existing power station, metallurgy, chemical industry, oil field
It is widely used in line control system.But the water particle in supercritical steam pipeline (390 DEG C of temperature, pressure 26MPa), in steam
Under the drive of high velocity vapor huge impact failure can be brought to valve.The moment especially closed in valve opening, flow velocity
Instantaneous to increase, the water slug caused by sealing surface is very big, washes away very seriously, while fluid resistance when existing valve opening and closing
Greatly, sealing surface washes away seriously, is washed badly broken using rear sealing surface for a long time, and service life is short, and works as pressure, temperature
When excessively high, it be easy to cause valve leakage out of steam system.The deficiency of existing product: traditional power station valve, easily leak, sealing surface intolerant to abrasion and intolerant to
Corrosion.Service life is short.Inconvenient for operation, maintenance cost is high.
Utility model content:
The utility model aim is to propose a kind of overcritical forging double disc electric gate valve, has and is not easy to leak, sealing surface
The advantages that wear-resistant and corrosion-resistant, long service life.
The technical solution of the utility model is, a kind of overcritical forging double disc electric gate valve, including valve body, seal receptacle,
Flashboard bottom cover, left flashboard, central axis, right flashboard, flashboard upper cover, valve rod, enhancing soft graphite combined sealing ring, sealing ring, tune
The domain, bolts and nuts, compression ring, Packing seat, composite filling, packing press ring, gland, eyelet bolt and nut, bracket,
Thrust ball bearing, valve stem nut, bolts and nuts, electric device；Valve body is equipped with inlet and outlet, imports and exports on an axis,
The runner lower part that the central axial line of this vertical axis is equipped with valve body is equipped with valve seat slot, the lower end insertion valve of left flashboard, right flashboard
Seat slot, left flashboard, right flashboard central axis two sides and fixed with central axis；Central axis point-blank connects with valve rod
It connects；Left flashboard, right flashboard are in V-shape, and central axis connects valve rod lower end, and valve rod upper end is matched with valve stem nut screw thread, and is supported
On thrust ball bearing on bracket, support vertical is erected on valve body in valve rod, and electric device exports the rotation driving of screw thread
Valve stem nut.Equipped with valve deck, Packing seat, composite filling, packing press ring, gland are wrapped in valve rod in valve deck.
Valve body center valve seat is equipped with the hole of connection valve inlet and outlet, and cut-out cock is logical when flashboard covers downwards valve seat
Hole.
The lower part in the duct imported and exported on valve seat is equipped with the gap that flashboard extends downwardly into, and gap accommodates flashboard bottom cover.Flashboard
The upper of bottom cover is equipped with left flashboard, right flashboard, and the fixed flashboard upper cover in only side of left flashboard, right flashboard, left flashboard, the vertical of right flashboard cut
Face is V-shape, and central axis is located at left flashboard, the center of right flashboard is goed deep into from flashboard upper cover planar central hole to left flashboard, You Zha
Between plate, valve rod is fixed with central axis connecting shaft, valve deck is equipped with above valve body, valve deck center sets Packing seat, composite filling, filler pressure
Ring, gland wrap up valve rod.
Above the combination sealing filler and Packing seat piece of valve rod valve rod be equipped with thrust bearing so that the movement of valve rod is more
Flexibly, handwheel and the screw thread of valve rod outer rim match, and unlatch and close valve so as to relatively labor-saving.
The electric device 24 of the utility model controls 22 valve stem nuts and drives 8 valve rods, promotes or decline 4 and 6 flashboards, this
Sample can realize the on or off in valve flow channel, to carry out the intelligent control to pipeline.
The utility model has the advantages that the utility model can use at supercritical conditions when in use, it is a kind of double disc of forging
Electric gate valve, flashboard use double disc structure, guarantee the enough elasticity in sealing, guarantee close under high temperature and high pressure condition
Envelope.Have many advantages, such as to be not easy to leak, sealing surface is wear-resistant and corrosion-resistant, long service life.Flashboard is using wear-resistant and corrosion-resistant
Austenitic stainless steel, wear-resistant and corrosion resistance are strong；It is applied widely.Sealing surface, can also between each other without friction, without interference
Using adjustment butterfly spring structure, to guarantee that abrasion in use is compensated automatically, guarantee the use of equipment seal receptacle
Service life.It is applied widely.Using solid forging, guarantees integral strength under supercritical behavior, guarantee the service life of gate valve.Using
Sealing ring combines the sealing guaranteed from seal structure at elevated pressures with enhancing soft graphite combined sealing ring.Dual sealing is filled out
Hopper design, sealed reliable.Flashboard and seal receptacle use built-up welding different hardness alloy technology, and it is wear-resisting with seal receptacle to guarantee that lock is analysed
It damages and corrosion-resistant, guarantees the service life of entire valve.Advanced, small in size using integrated valve electric device control system,
The features such as light-weight, working service facilitates.Remote control can be carried out valve, collection is controlled and is automatically controlled.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment:
As shown, 1, valve body, 2, seal receptacle, 3, flashboard bottom cover, 4, left flashboard, 5, central axis, 6, right flashboard, 7, flashboard
Upper cover, 8, valve rod, 9, enhancing soft graphite combined sealing ring, 10, sealing ring, 11, adjustment ring, 12, bolts and nuts, 13, pressure
Tight ring, 14, bolts and nuts, 15, Packing seat, 16, composite filling, 17, packing press ring, 18, gland, 19, eyelet bolt
With nut, 20, bracket, 21, thrust ball bearing, 22 valve stem nuts, 23, bolts and nuts, 24, electric device.
The utility model includes valve body, seal receptacle, flashboard bottom cover, left flashboard, central axis, right flashboard, flashboard upper cover, valve
Bar, sealing ring, adjustment ring, bolts and nuts, compression ring, Packing seat, composite filling, is filled out enhancing soft graphite combined sealing ring
Expect pressure ring, gland, eyelet bolt and nut, bracket, thrust ball bearing, valve stem nut, bolts and nuts, electric device；
Valve body is equipped with inlet and outlet, and on an axis, the central axial line of this vertical axis is equipped with the runner lower part of valve body to inlet and outlet
Equipped with valve seat slot, the lower end inserted valve seat slot of left flashboard, right flashboard, left flashboard, right flashboard central axis two sides and in
Mandrel is fixed；Central axis is point-blank connect with valve rod；Left flashboard, right flashboard are in V-shape, and central axis connects under valve rod
End, valve rod upper end is matched with valve stem nut screw thread, and is supported on the thrust ball bearing on bracket, and support vertical is set up in valve rod
On valve body, electric device exports the rotation driving stem nut of screw thread.
The lower part in the duct imported and exported on valve seat is equipped with the gap that flashboard extends downwardly into, and gap accommodates flashboard bottom cover.Flashboard
Bottom cover wraps up the bottom of left flashboard, central axis, right flashboard；Enhance upper cover, that is, valve deck that soft graphite combined sealing ring is used for valve seat
With the sealing of valve seat, sealing ring pushes down enhancing soft graphite combined sealing ring, pushes down valve deck equipped with adjustment ring, adjustment ring is equipped with
Adjustment ring is fixed on valve deck by bolts and nuts, and valve deck is embedded in the cylinder of valve seat, and adjustment ring will equipped with bolts and nuts
Adjustment ring is fixed on the cylinder of valve seat；It is equipped with Packing seat, composite filling, packing press ring, gland in valve deck and wraps valve
Bar, compression ring, bolts and nuts push down gland；Bracket is equipped with above valve deck, eyelet bolt is secured the stand to nut
On valve deck, bracket is equipped with thrust ball bearing and engages with valve rod, and valve stem end is equipped with valve stem nut, electric device and valve stem nut
Engagement driving.The bottom plate of electric device is fixed on valve stem end equipped with bolts and nuts.
Thrust ball bearing is a kind of divergence type bearing, and blowout patche, seat ring are separated with the component of retainer, steel ball.Blowout patche be with
The lasso that axis matches, seat ring are that have gap between the lasso and axis matched with bearing saddle bore；Thrust ball bearing is merely able to hold
By axial load, single direction thrust ball bearing is the axial load that can only bear a direction, and double-direction thrust ball bearing can be born
The axial load of both direction；Thrust ball bearing cannot limit the radial displacement of axis, and limit speed is very low, single direction thrust ball bearing
The axial displacement in a direction of axis and shell can be limited.
A pair of of butterfly spring can also be equipped on valve seat, the butterfly spring is the butterfly spring of central openings, it is described in
Entreating the hole of aperture and valve inlet and outlet, the gap between a pair of of butterfly spring is matched with flashboard, and flashboard is downward on an axis
It is fitted close when cut-out cock with the first plane of butterfly spring when covering valve seat, the second plane fitting enhancing of butterfly spring is soft
Property carbon seal ring is fixed on valve seat.Enhancing flexible graphite sealing ring is sealed with the circle shape of butterfly spring same shape
Circle, flashboard top connect valve rod, and fixed valve deck above valve seat is equipped with metallic packing ring between valve seat and valve deck；Valve rod is in valve deck
Inside, valve rod are equipped with combination sealing filler and filler gasket.
Valve body center valve seat is equipped with the hole of connection valve inlet and outlet, and cut-out cock is logical when flashboard covers downwards valve seat
Hole.
The foregoing is merely an embodiment of the present invention, are not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principle of utility model, to be included in the utility model
Protection scope within.
Claims (7)
1. a kind of overcritical forging double disc electric gate valve, it is characterized in that including valve body, seal receptacle, flashboard bottom cover, left flashboard, in
Mandrel, right flashboard, flashboard upper cover, valve rod, enhancing soft graphite combined sealing ring, sealing ring, adjustment ring, bolts and nuts, pressure
Tight ring, Packing seat, composite filling, packing press ring, gland, bracket, thrust ball bearing, valve stem nut, bolts and nuts, electricity
Dynamic device；Valve body is equipped with inlet and outlet, and on an axis, the central axial line of this vertical axis is equipped with the stream of valve body to inlet and outlet
Road lower part is equipped with valve seat slot, the lower end inserted valve seat slot of left flashboard, right flashboard, the two sides in central axis of left flashboard, right flashboard
And it is fixed with central axis；Central axis is point-blank connect with valve rod；Left flashboard, right flashboard are in V-shape, central axis connection valve
Bar lower end, valve rod upper end are matched with valve stem nut screw thread, and are supported on the thrust ball bearing on bracket, and support vertical is in valve rod
It is erected on valve body, electric device exports the rotation driving stem nut of screw thread；Equipped with valve deck, Packing seat, composite filling, filler
Pressure ring, gland are wrapped in valve rod in valve deck.
2. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that valve body center valve seat is equipped with
It is connected to the hole of valve inlet and outlet, the through-hole of cut-out cock when flashboard covers downwards valve seat.
3. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that the duct imported and exported on valve seat
Lower part be equipped with the gap that extends downwardly into of flashboard, gap accommodates flashboard bottom cover.
4. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that right flashboard is central from flashboard
Deeply between left flashboard, right flashboard, valve rod is fixed with central axis connecting shaft in upper cover planar central hole, and valve deck is equipped with above valve body,
Valve deck center sets Packing seat, composite filling, packing press ring, gland and wraps up valve rod.
5. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that the left flashboard of flashboard bottom cover package,
The bottom of central axis, right flashboard；Enhance sealing of the soft graphite combined sealing ring for the upper cover, that is, valve deck and valve seat of valve seat, it is close
Seal ring pushes down enhancing soft graphite combined sealing ring, pushes down valve deck equipped with adjustment ring, adjustment ring is equipped with bolts and nuts and will adjust
The domain is fixed on valve deck, and valve deck is embedded in the cylinder of valve seat, and adjustment ring is equipped with bolts and nuts and adjustment ring is fixed on valve
On the cylinder of seat.
6. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that being equipped with Packing seat, group in valve deck
It closes filler, packing press ring, gland and wraps valve rod, compression ring, bolts and nuts push down gland；It is equipped with above valve deck
Bracket, eyelet bolt and nut secure the stand on valve deck, and bracket is equipped with thrust ball bearing and engages with valve rod, valve stem end
Driving is engaged with valve stem nut equipped with valve stem nut, electric device；The bottom plate of electric device is fixed on equipped with bolts and nuts
Valve stem end.
7. overcritical forging double disc electric gate valve according to claim 1, it is characterized in that valve seat is equipped with a pair of of butterfly
Spring, the butterfly spring are the butterfly spring of central openings, Kong Yi axis of the central openings and valve inlet and outlet
On, the gap between a pair of of butterfly spring is matched with flashboard, when flashboard covers downwards valve seat when cut-out cock and butterfly spring
First plane is fitted close, and the second plane fitting enhancing flexible graphite sealing ring of butterfly spring is fixed on valve seat；Enhance soft
Property carbon seal ring be circle shape sealing ring with butterfly spring same shape, connect valve rod above flashboard, it is fixed above valve seat
Valve deck is equipped with metallic packing ring between valve seat and valve deck；For valve rod inside valve deck, valve rod is equipped with combination sealing filler and filler
Gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715328.5U CN208845762U (en) | 2018-05-15 | 2018-05-15 | Overcritical forging double disc electric gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715328.5U CN208845762U (en) | 2018-05-15 | 2018-05-15 | Overcritical forging double disc electric gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845762U true CN208845762U (en) | 2019-05-10 |
Family
ID=66350335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820715328.5U Expired - Fee Related CN208845762U (en) | 2018-05-15 | 2018-05-15 | Overcritical forging double disc electric gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845762U (en) |
-
2018
- 2018-05-15 CN CN201820715328.5U patent/CN208845762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 Termination date: 20210515 |