CN208565571U - A kind of multi-sealed bellows stop valve - Google Patents
A kind of multi-sealed bellows stop valve Download PDFInfo
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- CN208565571U CN208565571U CN201820836431.5U CN201820836431U CN208565571U CN 208565571 U CN208565571 U CN 208565571U CN 201820836431 U CN201820836431 U CN 201820836431U CN 208565571 U CN208565571 U CN 208565571U
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- 239000011148 porous material Substances 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007363 ring formation reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
Bellows stop valve, including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck and the second valve deck, airtight and watertight padding pad, valve stem nut, 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 for corresponding to valve on valve seat, and 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 corrugated tube end welds the bowl ring of a stainless sheet steel, bowl ring central openings, medium pore and corrugated tube end weld, and the bowl edge of bowl ring is fixed between valve body and valve deck, support ring is fixed on the second valve deck, second valve deck is fixed in the top of valve deck, the second valve deck with valve deck；Valve stem nut is screwed in the upper end of valve rod, and the inside thread of valve stem nut is matched with the outside screw of valve rod upper end.
Description
Technical field:
The utility model relates to a kind of sealed stop valve door, be especially adapted for use in petroleum, chemical industry, power field application it is resistance to
The bellows stop valve of high 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.Because bellows is more waves, resistance to higher
Pressure, while can be carried out dual-seal, first is sylphon seal again, and second is general airtight and watertight padding sealing again, if the
In one weight ripple bad situation completely, the second common shut-off valve for restarting general airtight and watertight padding sealing is equally acted on.
Traditional bellows stop 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 stop valve, and valve rod passes through the positioning device that is equipped with, and (i.e. anti-rotation is close
Seal apparatus) the vertical of valve plate is kept, when valve opening and closing, valve rod can limit operation, and the sealing structure of bellows, which has, to be not easy to let out
The advantages that leakage, sealing surface is wear-resistant and corrosion-resistant, long service life.
The technical solution of the utility model is bellows stop valve, including valve body, flap, valve rod, valve seat, bellows, pressure
Ring, valve deck and the second valve deck, airtight and watertight padding pad, valve stem nut, filler, clamp nut, handwheel；Valve body is equipped with inlet and outlet, into
On an axis, the center of the enterprising outlet flow of valve body is equipped with valve seat, and valve seat is located on inlet and outlet channel, with valve seat for outlet
The flap connection valve rod matched, valve rod drive flap to open and close the opening and closing for corresponding to valve on valve seat, and corrugated stainless steel tubing is covered in valve rod
On, bellows lower end is welded on the lower end of valve rod, to prevent process fluid etch valve rod；Valve rod upper end corrugated tube end welding one
The bowl ring (anti-rotational group of cyclization) of a stainless sheet steel, bowl ring central openings, medium pore and corrugated tube end
Welding, and the bowl edge of bowl ring is fixed between valve body and valve deck, or is fixed on the circumference of pressure ring, pressure ring is fixed on valve
Between body and valve deck；Valve rod passes through the center of pressure ring centre bore and valve deck, and the second valve deck upper end is equipped with and side switch outside valve stem nut
The handwheel of conjunction, the position above valve deck inner corrugated pipe are equipped with the filler of package valve rod, and filler includes Packing seat, filler, filler pressure
Ring；The top of valve rod passes through the medium pore of a support ring, is equipped with axial positioning key pin in the medium pore of support ring, positions key pin
It is embedded in the keyway of the upper position of valve rod, the length of keyway is greater than positioning key pin.Support ring is fixed on the second valve deck, and second
Valve deck is fixed in the top of valve deck, the second valve deck with valve deck；Valve stem nut is screwed in the upper end of valve rod, the inside thread of valve stem nut
It is matched with the outside screw of valve rod upper end, and handwheel passes through the opening and closing up and down of valve stem nut driving stem.
Equipped with clamp nut, clamp nut is used to filler being fastened on valve rod.
Equipped with jam nut, the longitudinal section of jam nut is door shape, on the top of the second valve deck, jam nut internal screw thread
The external screw thread for matching valve stem nut top, for covering jam nut on the top of valve rod.
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 is (anti-rotational using the bowl ring that bellows and corrugated tube end weld a stainless sheet steel
Group cyclization), the valve rod of fully wrapped around shut-off valve does not influence the up and down motion of valve rod, in addition the packing seal on valve rod, can prevent
Process fluid etch valve rod；If can avoid leaking using dual Seal Design ripple tube failure valve stem packing, bellows is welded in
Valve rod keeps stable runnability, avoids causing valve rod to vibrate since valve plug vibrates.Be best suited for steam, it is inflammable, explosive, lead
On the pipeline of the media such as hot 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 anti-bellows rotational structure, guarantee that bellows is not broken
It is bad, guarantee bellows working performance.Flap and sealing surface use built-up welding different hardness alloy, and wear-resistant and corrosion resistance is strong；
It is applied widely.The utility model stop valve structure is concise, and sealing effect is good.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment:
As shown, 1, valve body, 2, flap, 3, positioning pin, 4, seal bellows, 5, gasket seal, 6, gasket seal, 7,
Valve rod, 8, anti-rotational group of cyclization, 9, bolt, 10 nuts, 11 valve decks, 12 fillers, 13 packing press rings, 14 clamp nuts, 15, support
Ring, 16, positioning key pin, 17, valve stem nut, 19, handwheel, 20, jam nut, 21, nameplate.
Bellows stop valve, including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck and the second valve deck, sealing
Packing seat, valve stem nut, filler, clamp nut, handwheel；Valve body is equipped with inlet and outlet, imports and exports on an axis, on valve body
The center for importing and exporting runner is equipped with valve seat, and valve seat is located on inlet and outlet channel, and the valve seat on inlet and outlet channel is a taper hole shape,
Flap is that cone cell, cone cell flap and taper hole cooperate, and valve rod is fixed with flap, connect valve rod, valve rod band with the matched flap of valve seat
Dynamic flap opens and closes the opening and closing of corresponding valve on valve seat, and corrugated stainless steel tubing covers on valve rod, corrugated stainless steel tubing on valve body
Position is a tubular；It is opened with valve seat and connect valve rod with the matched flap of closure, valve rod drives flap to open and close correspondence on valve seat
The opening and closing of valve, corrugated stainless steel tubing cover on valve rod, and bellows lower end is welded on the lower end of valve rod, to prevent process fluid from soaking
Lose valve rod；Valve rod upper end corrugated tube end welds the bowl ring (anti-rotational group of cyclization) of a stainless sheet steel, and bowl-type is close
Seal central openings, medium pore and corrugated tube end weld, and the bowl edge of bowl ring is fixed between valve body and valve deck,
Or it is fixed on the circumference of pressure ring, pressure ring is fixed between valve body and valve deck；Valve rod passes through the center of pressure ring centre bore and valve deck, the
Two valve deck upper ends are equipped with the handwheel being bonded with valve stem nut outside, and the position above valve deck inner corrugated pipe is equipped with filling out for package valve rod
Material, filler includes Packing seat, filler, packing press ring；The top of valve rod passes through the medium pore of a support ring, the medium pore of support ring
Interior to be equipped with axial positioning key pin, in the keyway for positioning the upper position of key pin insertion valve rod, the length of keyway is greater than positioning key
Pin.Support ring is fixed on the second valve deck, and the second valve deck is fixed in the top of valve deck, the second valve deck with valve deck；Valve stem nut is twisted
In the upper end of valve rod, the inside thread of valve stem nut is matched with the outside screw of valve rod upper end, and handwheel is driven by valve stem nut
The opening and closing up and down of ovable valve stem.
Equipped with clamp nut, clamp nut is used to filler being fastened on valve rod.
Equipped with jam nut, the longitudinal section of jam nut is door shape, on the top of the second valve deck, jam nut internal screw thread
The external screw thread for matching valve stem nut top, for covering jam nut on the top of valve rod.
Corrugated stainless steel tubing covers on valve rod, and the position of corrugated stainless steel tubing is a tubular, bellows lower end weldering on valve body
It connects in the lower end of valve rod, to prevent process fluid etch valve rod；Valve rod upper end bellows upper end flange is 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
With valve deck center, valve stem tip is equipped with the handwheel of bonding, and the position above valve deck inner corrugated pipe is equipped with filler, and filler includes filler
Pad, filler, packing press ring constitute dual airtight and watertight padding design, sealed reliable.Handwheel band ovable valve stem up and down motion opening/shutting valve
When, the telescopic extensions in corrugated stainless steel tubing and bowl ring, the sealing of corrugated stainless steel tubing is not affected completely.
Valve body monoblock cast structure, proof strength have better streamline.Take multi-sealed high voltage bearing bellows.
Dual airtight and watertight padding design, sealed reliable.Flap and sealing surface use built-up welding different hardness alloy.
As shown below, rotation hand wheel band ovable valve stem promotes or declines valve rod, it is logical that valve flow thus may be implemented
The on or off in road, 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 (3)
1. bellows stop valve, it is characterized in that including valve body, flap, valve rod, valve seat, bellows, pressure ring, valve deck and the second valve
Lid, airtight and watertight padding pad, valve stem nut, filler, clamp nut, handwheel；Valve body is equipped with inlet and outlet, imports and exports in an axis
On, the center of the enterprising outlet flow of valve body is equipped with valve seat, and valve seat is located on inlet and outlet channel, with the matched flap connection valve of valve seat
Bar, valve rod drive flap to open and close the opening and closing for corresponding to valve on valve seat, and corrugated stainless steel tubing covers on valve rod, bellows lower end weldering
It connects in the lower end of valve rod；Valve rod upper end corrugated tube end welds the bowl ring of a stainless sheet steel, in bowl ring
Aperture is entreated, medium pore and corrugated tube end weld, and the bowl edge of bowl ring is fixed between valve body and valve deck, or fixed
In the circumference of pressure ring, pressure ring is fixed between valve body and valve deck；Valve rod passes through the center of pressure ring centre bore and valve deck, the second valve deck
Upper end is equipped with the handwheel being bonded with valve stem nut outside, and the position above valve deck inner corrugated pipe is equipped with the filler of package valve rod, fills out
Material includes Packing seat, filler, packing press ring；The top of valve rod passes through the medium pore of a support ring, sets in the medium pore of support ring
There is axial positioning key pin, in the keyway for positioning the upper position of key pin insertion valve rod, the length of keyway is greater than positioning key pin；Branch
Pushing out ring is fixed on the second valve deck, and the second valve deck is fixed in the top of valve deck, the second valve deck with valve deck；Valve stem nut is screwed in valve rod
Upper end, the inside thread of valve stem nut matches with the outside screw of valve rod upper end, and handwheel passes through valve stem nut driving stem
Opening and closing up and down.
2. bellows stop valve according to claim 1, it is characterized in that being equipped with clamp nut, clamp nut is used for filler
It is fastened on valve rod.
3. bellows stop valve according to claim 1, it is characterized in that being equipped with jam nut, the longitudinal section of jam nut is
Door shape, on the top of the second valve deck, jam nut internal screw thread matches the external screw thread on valve stem nut top, is used for jam nut
It covers on the top of valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836431.5U CN208565571U (en) | 2018-05-31 | 2018-05-31 | A kind of multi-sealed bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836431.5U CN208565571U (en) | 2018-05-31 | 2018-05-31 | A kind of multi-sealed bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565571U true CN208565571U (en) | 2019-03-01 |
Family
ID=65483895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820836431.5U Active CN208565571U (en) | 2018-05-31 | 2018-05-31 | A kind of multi-sealed bellows stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565571U (en) |
-
2018
- 2018-05-31 CN CN201820836431.5U patent/CN208565571U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231127 Address after: No. 2 Fucheng Industrial Park, Funing County, Yancheng City, Jiangsu Province, 224400 Patentee after: Funing zhongzi ship accessories Co.,Ltd. Address before: 224400 New District, Funing County, Yancheng City, Jiangsu Province, No. 68 Patentee before: YANCHENG FUYE HYDRAULIC PARTS Co.,Ltd. |