CN208804229U - A kind of multi-sealed bellows instrument valve - Google Patents
A kind of multi-sealed bellows instrument valve Download PDFInfo
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- CN208804229U CN208804229U CN201820821557.5U CN201820821557U CN208804229U CN 208804229 U CN208804229 U CN 208804229U CN 201820821557 U CN201820821557 U CN 201820821557U CN 208804229 U CN208804229 U CN 208804229U
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Abstract
A kind of bellows instrument valve, including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck, airtight and watertight padding pad, jam nut, stuffing box, clamp nut, handwheel；Valve body is equipped with inlet and outlet, inlet and outlet are on an axis, the center of the enterprising outlet flow of valve body is equipped with valve seat, valve seat is located on inlet and outlet channel, valve rod is connect with the matched flap of valve seat, valve rod drives flap to open and close the opening and closing of corresponding valve on valve seat, and the connection of valve rod and flap is in the only hole of valve rod end rotary sleeve axis insertion flap, corrugated stainless steel tubing covers on valve rod, and bellows lower end is welded on the lower end of valve rod；Valve rod upper end bellows upper end flange is fixed on the circumference of pressure ring, and pressure ring is fixed between valve body and valve deck, and airtight and watertight padding pad is equipped with below pressure ring and constitutes static seal；Valve rod passes through pressure ring centre bore and upper cover center, and valve stem tip is equipped with the handwheel of bonding, and upper cover inner corrugated pipe top is equipped with stuffing box around the position of valve rod, and stuffing box includes Packing seat, filler, packing press ring.
Description
Technical field:
The utility model relates to a kind of instrument valves, are especially adapted for use in the resistance to height that petroleum, chemical industry, power field are applied
The bellows instrument valve of pressure and high sealing performance.
Background technique:
With the high speed development of the national economy in China, it is suitable for petroleum, chemical industry, chemical fertilizer, pesticide, chemical fibre, papermaking, system
Sugar, food, power station, etc. industrial departments and agricultural or even living facilities purification device pipeline control system, to pipe-line system
Carry out the special valve of switch control.It is best suited for the pipeline of the media such as steam, inflammable, explosive, conduction oil, high-purity, toxic
Upper carry out dual-seal.
It is least readily exactly to seal for the valve of the media such as steam, inflammable, explosive, conduction oil, high-purity, toxic,
And high-pressure resistant corrugated pipe shut-off valve can carry out dual-seal under high-pressure situations.
Traditional bellows gauge valve, it is not high pressure resistant.It cannot be sealed well under high-pressure situations.Easily leakage, sealing surface is not
It is wear-resistant and not corrosion-resistant.Service life is short.Inconvenient for operation, maintenance cost is high.And high-pressure resistant corrugated pipe shut-off valve can be
Dual-seal is carried out under high-pressure situations.But the structure of bellows may make valve rod keep stable runnability can be difficult, meeting
Situations such as having situations such as deflection of valve rod that can make ripple tube damage.
Utility model content:
The utility model aim is to propose a kind of bellows instrument valve, and valve rod passes through positioning device (the i.e. anti-rotation being equipped with
Key) the vertical of valve plate is kept, when valve opening and closing, valve rod can limit operation, have and be not easy to leak, sealing surface is wear-resistant and resistance to
The advantages that burn into long service life.
The technical solution of the utility model is bellows instrument valve, including valve body, flap, valve rod, valve seat, bellows, pressure
Ring, valve deck, airtight and watertight padding pad, jam nut, stuffing box (stuffing box includes Packing seat, filler, packing press ring), clamp nut,
Handwheel；Valve body is equipped with inlet and outlet, and on an axis, the center of the enterprising outlet flow of valve body is equipped with valve seat, valve seat to inlet and outlet
On inlet and outlet channel, valve rod is connect with the matched flap of valve seat, valve rod drives flap to open and close corresponding valve on valve seat
Opening and closing, the connection of valve rod and flap are in the only hole of valve rod end rotary sleeve axis insertion flap, and corrugated stainless steel tubing covers on valve rod,
Bellows lower end is welded on the lower end of valve rod, to prevent process fluid etch valve rod；Valve rod upper end bellows upper end flange is fixed
In the circumference of pressure ring, pressure ring is fixed between valve body and valve deck, and airtight and watertight padding pad is equipped with below pressure ring and constitutes static seal；Valve rod is worn
Pressure ring centre bore and upper cover center are crossed, valve stem tip is equipped with the handwheel of bonding, the position of valve rod is surrounded above upper cover inner corrugated pipe
Equipped with stuffing box, stuffing box includes Packing seat, filler, packing press ring.
Equipped with clamp nut, the longitudinal section of clamp nut is door shape, and it is matched that upper cover top is equipped with clamp nut screw thread
Packing press ring is fixed on upper lid by screw thread, clamp nut.
Equipped with jam nut, the longitudinal section of jam nut is door shape, and valve body is equipped with the matched spiral shell of jam nut screw thread
Upper cover is fixed on valve body by line, jam nut.
Valve seat on inlet and outlet channel is a taper hole, and flap is cone cell, and cone cell flap is inserted into taper hole.
The position that corrugated stainless steel tubing is accommodated on valve body is a tubular.
The inlet and outlet of valve body are equipped with adapter tube, and the connection version of adapter tube inlet and outlet is set to there is flange, between inlet and outlet and adapter tube
Equipped with sealing ring, it is equipped with union nut, the longitudinal section of union nut is door shape, and the inlet and outlet of valve body are tubulose, the outside of pipe
It is matched equipped with external screw thread with the internal screw thread of union nut, union nut, which will take over, to be fixed in inlet and outlet.
Position of the valve rod above bellows is equipped with the sealing of Packing seat, composite filling.
Bellows valve is best suited on the pipeline of the media such as steam, inflammable, explosive, conduction oil, high-purity, toxic.
The utility model can be prevented using the valve rod of the fully wrapped around shut-off valve of bellows in addition the stuffing box on valve rod seals
Only process fluid etch valve rod；If can also avoid leaking using dual Seal Design ripple tube failure valve stem packing, bellows
It is welded in the runnability that valve rod keeps stable, avoids causing valve rod to vibrate since valve plug vibrates.It is best suited for steam, inflammable, easy
On the pipeline of the media such as quick-fried, conduction oil, high-purity, toxic.
The utility model has the advantages that the utility model bellows stop valve product has the following advantages that, inside the bellows stop valve
Using bellows, using dual Seal Design, position of the valve rod above bellows is equipped with Packing seat, composite filling seals,
If the valve stem packing of ripple tube failure can also avoid leaking, bellows is welded in the runnability that valve rod keeps stable, avoids due to valve
Plug vibration causes valve rod to vibrate.And valve body solid forging structure, proof strength reach long service life.Using high pressure resistant
Bellows, guarantee the sealing performance under high pressure working condition.Using the inlet and outlet of welding adapter tube connecting valve, facilitate spirit
It is living, reach long service life.Multi-sealed high voltage bearing bellows is taken, guarantees the leakproofness under high pressure working condition
Energy.Using anti-bellows rotational structure, guarantees that bellows is not destroyed, guarantee bellows working performance.Flap is adopted with sealing surface
It is wear-resistant strong with corrosion resistance with built-up welding different hardness alloy；It is applied widely.The utility model instrument valve arrangement is concise,
Sealing effect is good.The inlet and outlet of valve body, which are equipped with adapter tube and union nut, has the structure quickly connected, especially suitable for instrument
Connection.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment:
As shown, 1, welded type is taken over, and 2, sealing ring, 3, valve body, 4, union nut, 5, flap, 6, bellows, 7, pressure
Ring, that is, anti-rotational group of cyclization, 8, airtight and watertight padding, 9, jam nut, 10, stuffing box, 11, Packing seat, 12, filler, 13, filler pressure
Ring, 14, clamp nut, 15, handwheel, 16, valve rod.
Bellows instrument valve, including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck, airtight and watertight padding pad, spelling are tightly
Nut, stuffing box (stuffing box includes Packing seat, filler, packing press ring), clamp nut, handwheel；Valve body solid forging structure is protected
Intensity is demonstrate,proved, it is convenient, flexible using welding adapter tube connection.Valve body is equipped with inlet and outlet, and welded type is taken over, 2, sealing ring, 3, valve body,
4, union nut；On an axis, the center of the enterprising outlet flow of valve body is equipped with valve seat to inlet and outlet, and it is logical that valve seat is located at inlet and outlet
On road, the valve seat on inlet and outlet channel is a taper hole shape, and flap is that cone cell, cone cell flap and taper hole cooperate, valve rod and flap
It is fixed, valve rod is connect with the matched flap of valve seat, valve rod drives flap to open and close the opening and closing for corresponding to valve, stainless steel wave on valve seat
Line pipe sleeve is on valve rod, and the position of corrugated stainless steel tubing is a tubular on valve body, and corrugated stainless steel tubing is using triple high voltage bearing
Bellows.Bellows lower end is welded on the lower end of valve rod, to prevent process fluid etch valve rod；It turns over valve rod upper end bellows upper end
While being fixed on the circumference of pressure ring, pressure ring is fixed between valve body and valve deck, and airtight and watertight padding pad is equipped with below pressure ring and constitutes static seal；
Valve rod passes through pressure ring centre bore and upper cover center, and valve stem tip is equipped with the handwheel of bonding, and the position above upper cover inner corrugated pipe is set
There is stuffing box, stuffing box includes Packing seat, filler, packing press ring, constitutes the design of dual airtight and watertight padding case, sealed reliable.Hand
When wheel belt ovable valve stem up and down motion opening/shutting valve, in the telescopic extensions of corrugated stainless steel tubing, the sealing of corrugated stainless steel tubing is complete
It is not affected entirely.Pressure ring, that is, anti-bellows rotation combination ring.The connection of valve rod and flap is valve rod end rotary sleeve axis insertion valve
In the only hole of valve, valve rod end rotary sleeve axis is an enlarged footing, and only hole is the neck bore for accommodating enlarged footing.
Equipped with clamp nut, the longitudinal section of clamp nut is door shape, and it is matched that upper cover top is equipped with clamp nut screw thread
Screw thread, clamp nut are used to packing press ring being fixed on upper lid.Flap and sealing surface use built-up welding different hardness alloy.
Equipped with jam nut, the longitudinal section of jam nut is door shape, and valve body is equipped with the matched spiral shell of jam nut screw thread
Line, for upper cover to be fixed on valve body.
The inlet and outlet of valve body are equipped with adapter tube, and the connection version of adapter tube inlet and outlet is set to have flange, inlet and outlet and adapter tube (method
It is blue) between be equipped with sealing ring, be equipped with union nut, the longitudinal section of union nut is door shape, and the inlet and outlet of valve body are tubulose, pipe
Outside be equipped with external screw thread matched with the internal screw thread of union nut, union nut will take over (flange) and be fixed in inlet and outlet.
As shown, rotation hand wheel band ovable valve stem, promotes or declines valve rod and flap, valve stream thus may be implemented
The on or off for measuring channel, to carry out the control to pipeline.
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 (8)
1. a kind of bellows instrument valve, characterized in that including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck, sealing
Packing seat, jam nut, stuffing box, clamp nut, handwheel；Valve body is equipped with inlet and outlet, imports and exports on an axis, valve body
The center of enterprising outlet flow is equipped with valve seat, and valve seat is located on inlet and outlet channel, connect valve rod, valve rod with the matched flap of valve seat
Flap is driven to open and close the opening and closing of corresponding valve on valve seat, the connection of valve rod and flap is valve rod end rotary sleeve axis insertion flap
Only in hole, corrugated stainless steel tubing covers on valve rod, and bellows lower end is welded on the lower end of valve rod；It turns over valve rod upper end bellows upper end
While being fixed on the circumference of pressure ring, pressure ring is fixed between valve body and valve deck, and airtight and watertight padding pad is equipped with below pressure ring and constitutes static seal；
Valve rod passes through pressure ring centre bore and upper cover center, and valve stem tip is equipped with the handwheel of bonding, surrounds valve rod above upper cover inner corrugated pipe
Position be equipped with stuffing box, stuffing box includes Packing seat, filler, packing press ring.
2. bellows instrument valve according to claim 1, characterized in that be equipped with clamp nut, the longitudinal section of clamp nut
It is door shape, upper cover top is equipped with the matched screw thread of clamp nut screw thread, and clamp nut is used to packing press ring being fixed on upper cover
On.
3. bellows instrument valve according to claim 1, characterized in that be equipped with jam nut, the longitudinal section of jam nut
It is door shape, valve body is equipped with the matched screw thread of jam nut screw thread, for upper cover to be fixed on valve body.
4. bellows instrument valve according to claim 1, characterized in that the valve seat on inlet and outlet channel is a taper hole,
Flap is cone cell, and cone cell flap is inserted into taper hole.
5. bellows instrument valve according to claim 1, characterized in that the position for accommodating corrugated stainless steel tubing on valve body is
One tubular.
6. bellows instrument valve according to claim 1, characterized in that the inlet and outlet of valve body are equipped with adapter tube, take over into
The junction of outlet is equipped with flange, and sealing ring is equipped between inlet and outlet and adapter tube, is equipped with union nut, the longitudinal section of union nut
It is door shape, the inlet and outlet of valve body are tubulose, and the outside of pipe is equipped with external screw thread and matches with the internal screw thread of union nut, union nut
It will take over and be fixed in inlet and outlet.
7. bellows instrument valve according to claim 1, characterized in that be equipped with clamp nut, the longitudinal section of clamp nut
It is door shape, upper cover top is equipped with the matched screw thread of clamp nut screw thread, and packing press ring is fixed on upper lid by clamp nut.
8. bellows instrument valve according to claim 1, characterized in that be equipped with jam nut, the longitudinal section of jam nut
It is door shape, valve body is equipped with the matched screw thread of jam nut screw thread, and upper cover is fixed on valve body by jam nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821557.5U CN208804229U (en) | 2018-05-30 | 2018-05-30 | A kind of multi-sealed bellows instrument valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821557.5U CN208804229U (en) | 2018-05-30 | 2018-05-30 | A kind of multi-sealed bellows instrument valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804229U true CN208804229U (en) | 2019-04-30 |
Family
ID=66227372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820821557.5U Active CN208804229U (en) | 2018-05-30 | 2018-05-30 | A kind of multi-sealed bellows instrument valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804229U (en) |
-
2018
- 2018-05-30 CN CN201820821557.5U patent/CN208804229U/en active Active
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