CN201416655Y - Screw-in forged type high-pressure cage balanced adjusting cut-off angle valve - Google Patents
Screw-in forged type high-pressure cage balanced adjusting cut-off angle valve Download PDFInfo
- Publication number
- CN201416655Y CN201416655Y CN200920006083XU CN200920006083U CN201416655Y CN 201416655 Y CN201416655 Y CN 201416655Y CN 200920006083X U CN200920006083X U CN 200920006083XU CN 200920006083 U CN200920006083 U CN 200920006083U CN 201416655 Y CN201416655 Y CN 201416655Y
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- Prior art keywords
- valve
- screw
- high pressure
- valve body
- angle
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- Expired - Lifetime
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- 230000003064 anti-oxidating effect Effects 0.000 claims abstract description 13
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 229910002804 graphite Inorganic materials 0.000 claims description 26
- 239000010439 graphite Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 239000011701 zinc Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to a screw-in forged type high-pressure cage balanced adjusting cut-off angle valve, which comprises a main body and an actuating mechanism mounted on an upper cover of a valve body and connected through a round screw nut. Valve cores are installed on the valve body and the upper cover, and a valve seat is mounted on the valve body. The adjusting cut-off angle valve is characterized in that a throttling component is arranged on the valve seat, an upper cover gasket is disposed between the valve body and the upper cover, a valve seat gasket is arranged between the valve seat and the valve body, an anti-oxidation high-pressure stuffing sealed box component sleeved on the valve core is provided with a stuffing gland for compressing the stuffing sealed box component tightly, the throttling component is formed by two to three layers of valve cages, and throttling holes of different sizes are drilled on the valve cages. The screw-in forged type high-pressure cage balanced adjusting cut-off angle valve has the advantages of simple structure, convenient installation and capability of realizing both efficient seal and pressure-reducing function in simple process. Simultaneously, the adjusting cut-off angle valve capable of arbitrarily combining optional internal parts is particularly excellent in anti-scour anti-cavitation performance, and balanced rings and special angle seal enable cage type seal to be likely to reach VI grade seal easily.
Description
Technical field
The utility model relates to a kind of screw-in forged high pressure cage type balanced adjusting and cuts off angle valve, specifically except that suitable general industry technology controlling and process, be particularly suitable in High Pressure Difference industrial fluids, gas, gas-liquid mixed phase system, using, play Flow-rate adjustment and shutoff effect, belong to machinery valve industry technology field.
Background technique
In the prior art, especially in industrial fluids power conduit system, valve is primary element of realizing whole system automation control.What its assurance system controlled is safe, instant and effective, and central topmost factor is the operation of pressure adjusting and flow control valve, and can not cause the infringement of valve body and system under any mode of operation.It is the problem place that this field domestic demand solves, especially Flow-rate adjustment cut-off valve one of the most scabrous problem in all industrial process control instruments especially, all there are corresponding product and theory in a lot of international renowned companies and research institution, but all can not well solve control shutoff and adjusting problem in high pressure and ultrahigh pressure down-off.
On conventional control valve especially high-pressure regulation cut-out angle valve, exist common problem to be:
1, under the High Pressure Difference situation, the multistage step-down spool of general double seat or multiple seat type sealing configuration sealability is difficult to guarantee that reason is will guarantee simultaneously relatively difficulty of two or more sealing surface performances under certain Stroke Control.
2, under high-pressure situations, general double seat seal spool structure easily produces vibration under the washing away of fluid, and valve rod is easily broken.
3, under high pressure High Pressure Difference situation, the processing medium flow velocity is very fast, easily produces and washes away, especially cavitation phenomenon.
4, under the High Pressure Difference situation, flow velocity is very fast, and vibrations are severe that adjusting function is all had very big influence, and noise is very big, serious environment pollution.
When 5, little aperture is regulated, often the spool aperture very little after, easily by the high-voltage high-speed dielectric breakdown.
6, selecting for use of the hard seal form structure and material of high pressure, it is not long generally to regulate the life-span at present, and it is too high that the maintenance of commercial plant and use have been proposed very high requirement and maintenance cost.
7, the influence in stuffing box life-span often makes processing medium leak outside under the high pressure, the harm environment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby provide a kind of screw-in forged high pressure cage type balanced adjusting to cut off angle valve, can guarantee stable responding in the industrial media process control procedure by technological requirement enforcement, can play good small flow and regulate control, and can improve working life greatly.
The technological scheme that provides according to the utility model, screw-in forged high pressure cage type balanced adjusting is cut off angle valve and is comprised body portion, actuator, actuator be installed in the body valve body on cover, connect by round nut, in the valve body of described body, valve seat is installed on the valve body, spool is installed in valve body and the loam cake, feature is: on the described valve seat orifice union is installed, is provided with the loam cake pad between valve body and the loam cake, by the loam cake gasket seal, be provided with the valve seat pad between valve seat and the valve body, by the valve seat gasket seal, described valve core upper sleeve is equipped with anti-oxidation pressure packing seal letter assembly, has Gland to compress on the anti-oxidation high pressure packing seal letter assembly.
Described orifice union is made up of two to three layers of valve cage, pushes down orifice sleeve 5-2 by valve cage 5-1, is drilled with the throttle orifice that differs in size on the valve cage.
Described anti-oxidation high pressure packing seal letter assembly is made up of Gland, first, second, third, fourth thread graphite braided packing, filler spacer, first, second flake graphite filler, first, second zinc metal sheet and guide sleeve, and Gland is pushed down the first thread graphite braided packing, first zinc metal sheet, the first flake graphite filler, the second thread graphite braided packing, filler spacer, the 3rd thread graphite braided packing, second zinc metal sheet, the second flake graphite filler, the 4th thread graphite braided packing and guide sleeve respectively successively.
Described spool outlet port is provided with guiding gutter, and medium break-in and energy loss when going out the valve seat mouth can play certain protection and protection against erosion effect to valve body.Described spool adopts stainless steel material to make.
Compared with the prior art the utility model has the following advantages:
1, single seat balance type hard sealing structure is adopted in the trim sealing, for the hard sealing of VI level provides precondition.
2, because valve core material is special stainless steel material, and hardness can reach about HRC55 under the heat treatment situation, can be good at protection against erosion, its life-span can reach more than 5 years, and still can play good seal action.
3, full surfacing is handled because seat material is special cemented carbide, with spool certain reasonably difference of hardness scope is arranged, and can further improve sealability and protection against erosion.
4, because valve seat and spool adopt the linear sealing structure, its angle is to require reasonable value by a large amount of experiments acquisitions according to the plasticity of material and seal pressure.
5, owing to adopt the cage buck configuration, and material uses special stainless steel hot to handle, and good intensity and hardness are arranged, and the high speed flow medium is had good antiscour effect.
6, owing to also be provided with guiding gutter in the spool outlet port, medium break-in and energy loss when going out the valve seat mouth can play certain protection and protection against erosion effect to valve body.
But 7, moving, the pneumatic actuator of the utility model distribution, control is steadily reliable.
8, the utility model is simple in structure, easy for installation, under simple process, can realize efficient sealed, again can the step-down performance, simultaneously can the optional internals of combination in any, its protection against erosion air defense voltinism can be good especially, gimbal and special angle sealing make the cage sealing reach the sealing of VI level becomes possibility, and realizes easily.
Description of drawings
Fig. 1 is the utility model profile plan view.
Fig. 2 removes actuator's sectional view for the utility model structure.
Fig. 3 is the utility model orifice union structural representation.
Fig. 4 is the anti-oxidation pressure packing seal of a utility model letter modular construction schematic representation.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 2, mainly form by body A and the B two large divisions of actuator, wherein main structure is a body A part; Body A is by valve body 1, valve seat pad 2, valve seat 3, spool 4, orifice union 5, O type circle 6, graphite gimbal 7, Tetrafluoro spacer 8, loam cake pad 9, loam cake bolt and nut 10,11,12, loam cake 13, anti-oxidation high pressure packing seal letter assembly 14, round nut 15, Gland 16, gland stud nut 17,18, thin nut 19 and guiding gutter 20 are formed.
The B of the utility model actuator is installed on the loam cake 13 of body A valve body 1, connects by round nut 15.Spool 4 is installed in valve body 1 and the loam cake 13, uses bonnet bolt nut 10,11, and 12 is fastening; Be set with O type circle 6, graphite gimbal 7, Tetrafluoro spacer 8 on the spool 4 of body; Thin nut 19 is equipped with in spool 4 upper ends.Described spool 4 outlet ports are provided with guiding gutter 20, and medium break-in and energy loss when going out the valve seat mouth can play certain protection and protection against erosion effect to valve body.Described spool 4 adopts stainless steel material to make.Loam cake 13 is installed on valve body 1 and the orifice union 5, is provided with loam cake pad 9 between valve body 1 and the loam cake 13, by 9 sealings of loam cake pad, valve seat 3 is installed on the valve body 1, be provided with valve seat pad 2 between valve seat 3 and the valve body 1,, orifice union 5 be installed on the valve seat 3 by 2 sealings of valve seat pad.Height is set with anti-oxidation pressure packing seal letter assembly 14 on the described spool 4, spool 4 is by anti-oxidation high pressure packing seal letter assembly 14 sealings and guiding, anti-oxidation high pressure packing seal letter assembly 14 has Gland 16 to compress, and is fastening with gland stud nut 17,18.
Described orifice union 5 is made up of two to three layers of valve cage 5-1, pushes down orifice sleeve 5-2 by valve cage 5-1, is drilled with the throttle orifice that differs in size on the valve cage.
Described anti-oxidation high pressure packing seal letter assembly 14 is by Gland 14-1, first, second, the 3rd, the 4th thread graphite braided packing 14-2, filler spacer 14-3, first, the second flake graphite filler 14-4, first, the second zinc metal sheet 14-5 and guide sleeve 14-6 form, and Gland 14-1 pushes down the first thread graphite braided packing 14-2 respectively successively, the first zinc metal sheet 14-5, the first flake graphite filler 14-4, the second thread graphite braided packing 14-2, filler spacer 14-3, the 3rd thread graphite braided packing 14-2, the second zinc metal sheet 14-5, the second flake graphite filler 14-4, the 4th thread graphite braided packing 14-2 and guide sleeve 14-6.
Described valve seat 3 adopts the linear sealing structures with spool 4, and valve base sealing angle and seal spool angle are respectively 41 ° and 39 °, and its angle is to require reasonable value by a large amount of experiments acquisitions according to the plasticity of material and seal pressure.
Working principle of the present utility model and working procedure:
The utility model is on the process pipe device, the high-pressure process medium enters in the utility model one side runner, multistage step-down through orifice union 5, spool 4 move up and down the quantity that the may command processing medium flows through the valve cage throttle orifice, thereby the control circulation area is to reach the purpose of control flow rate and speed, thereby assurance technological requirement, processing medium go out behind the orifice union 5 through the spool guiding gutter stopping and drainage consumes portion of energy and realizes step-down for the second time and protection against erosion outlet flow, 41 ° of seal angle of 39 ° of seal angle of spool and valve seat form linear sealing when spool is closed, can play good seal action, seal grade firmly and can reach the VI level.
Claims (6)
1, angle valve is cut off in a kind of screw-in forged high pressure cage type balanced adjusting, comprise body (1), actuator (2), actuator (2) is installed on the loam cake (13) of body valve body (1), connect by round nut, in the valve body of described body (1), valve seat (3) is installed on the valve body (1), spool (4) is installed in valve body (1) and the loam cake (13), it is characterized in that: described valve seat (3) is gone up orifice union (5) is installed, be provided with loam cake pad (9) between valve body (1) and the loam cake (13), seal by loam cake pad (9), be provided with valve seat pad (2) between valve seat (3) and the valve body (1), by valve seat pad (2) sealing, be set with anti-oxidation pressure packing seal letter assembly (14) on the described spool (4), there is Gland (16) to compress on the anti-oxidation high pressure packing seal letter assembly (14).
2, angle valve is cut off in screw-in forged high pressure cage type balanced adjusting according to claim 1, it is characterized in that described spool (4) outlet port is provided with guiding gutter.
3, angle valve is cut off in screw-in forged high pressure cage type balanced adjusting according to claim 1, it is characterized in that described spool (4) adopts stainless steel material to make.
4, angle valve is cut off in screw-in forged high pressure cage type balanced adjusting according to claim 1, it is characterized in that described orifice union (5) has two to three layers of valve cage (5-1), orifice sleeve (5-2) to form, and valve cage (5-1) is pushed down orifice sleeve (5-2).
5, angle valve is cut off in screw-in forged high pressure cage type balanced adjusting according to claim 4, it is characterized in that described valve cage (5-1) is provided with throttle orifice.
6, angle valve is cut off in screw-in forged high pressure cage type balanced adjusting according to claim 1, it is characterized in that described anti-oxidation high pressure packing seal letter assembly (14) is by Gland (14-1), first, second, the 3rd, the 4th thread graphite braided packing (14-2), filler spacer (14-3), first, the second flake graphite filler (14-4), first, second zinc metal sheet (14-5) and guide sleeve (14-6) are formed, and Gland (14-1) is pushed down the first thread graphite braided packing (14-2) successively, first zinc metal sheet (14-5), the first flake graphite filler (14-4), the second thread graphite braided packing (14-2), filler spacer (14-3), the 3rd thread graphite braided packing (14-2), second zinc metal sheet (14-5), the second flake graphite filler (14-4), the 4th thread graphite braided packing (14-2) and guide sleeve (14-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920006083XU CN201416655Y (en) | 2009-03-07 | 2009-03-07 | Screw-in forged type high-pressure cage balanced adjusting cut-off angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920006083XU CN201416655Y (en) | 2009-03-07 | 2009-03-07 | Screw-in forged type high-pressure cage balanced adjusting cut-off angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416655Y true CN201416655Y (en) | 2010-03-03 |
Family
ID=41793073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920006083XU Expired - Lifetime CN201416655Y (en) | 2009-03-07 | 2009-03-07 | Screw-in forged type high-pressure cage balanced adjusting cut-off angle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416655Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307081A (en) * | 2017-07-26 | 2019-02-05 | 费希尔控制产品国际有限公司 | Improved Noise Attenuating Trim Assembly |
-
2009
- 2009-03-07 CN CN200920006083XU patent/CN201416655Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307081A (en) * | 2017-07-26 | 2019-02-05 | 费希尔控制产品国际有限公司 | Improved Noise Attenuating Trim Assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090307 |