CN202402655U - Valve portion structure of multistage string type high-performance adjusting valve - Google Patents
Valve portion structure of multistage string type high-performance adjusting valve Download PDFInfo
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- CN202402655U CN202402655U CN2011205131538U CN201120513153U CN202402655U CN 202402655 U CN202402655 U CN 202402655U CN 2011205131538 U CN2011205131538 U CN 2011205131538U CN 201120513153 U CN201120513153 U CN 201120513153U CN 202402655 U CN202402655 U CN 202402655U
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- multistage
- string data
- sides
- spool
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Abstract
The utility model relates to a valve portion structure of a multistage string type high-performance adjusting valve, which comprises a valve seat, first gaskets, a multistage valve cage, a valve bonnet, first double-screw bolts, first nuts, a string type valve spool, guide tubes, guide tube liners, packing isolation sleeves, anti-squeezing gaskets, a packing press plate, second bolts, second nuts, a support clamp, third bolts and third nuts. The valve seat is arranged in a valve body, two sides of the valve seat are sealed via the first gaskets, the multistage valve cage is fixedly arranged on the valve seat, the upper portion of the multistage valve cage contacts with the valve bonnet via second gaskets on two sides of the multistage valve cage, the first double-screw bolts and the first nuts are disposed on two sides of the upper portion of the valve bonnet, the string type valve spool is fixed on the multistage valve cage and is guided by the upper and lower guide tubes and the upper and lower guide tube liners which are arranged on two sides of the string type valve spool, the packing isolation sleeves are arranged between the upper and lower guide tubes and the upper and lower guide tube liners on the two sides of the string type valve spool, packing of an upper portion and packing of a lower portion are isolated via the packing isolation sleeves, the anti-squeezing gaskets are respectively disposed on the outer sides of the packing of the upper portion and the packing of the lower portion, the packing press plate is further arranged above the upper guide tube and the corresponding guide tube liner and is locked on the support clamp via the second bolts and the second nuts, and the support clamp is fixed on the valve bonnet via the third bolts and the third nuts.
Description
Technical field
The utility model relates to a kind of multistage string data high-performance modulating valve, relates in particular to the valve portion structure of this modulating valve.
Background technique
Multistage string data high-performance modulating valve can be applicable in the system under the harsh working condition, like thermal power plant, nuclear power station, heating system, draining system, oil gas field, Coal Chemical Industry, polysilicon and other high temperature, high pressure water and vapour system.
Multistage string data high-performance modulating valve is become by valve portion parts, actuator, positioning work piece and other enclosure group.
Always improve by every means in the valve portion parts of existing technology that valve internals material hardness attempts to solve cavitation erosion, flash distillation is washed away and problem such as vibration noise; In addition, always try every means in the valve portion parts of existing technology through strengthening inner flow passage to attempt to solve problems such as obstruction, crystallization.
How internally to design a kind of valve portion structure be that the technician will consider in the change of structure.
Summary of the invention
The utility model technical issues that need to address have provided a kind of valve portion structure of multistage string data high-performance modulating valve, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: the valve seat that is arranged on valve inner; The both sides of said valve seat are by first gasket seal; The multistage valve cage of fixed in position on described valve seat; Second pad that passes through both sides on the top of said multistage valve cage contacts with valve gap; Settle first double-screw bolt and nut on both sides, described valve gap top; At the fixing string data spool of described multistage valve cage; Described string data spool is led by guide pipe and the guide pipe lining about on its both sides; Between the both sides of described string data spool, up and down guide pipe and guide pipe lining, settle the filler disrance sleeve; Described filler disrance sleeve is used for the isolation between two-part filler up and down; Settle an anti-extrusion pad respectively in the described outside of two-part filler up and down; Above the guide pipe on described top and guide pipe lining, also settle a hold-down grid; Described hold-down grid by second bolt and nut check on the support folder; Described support folder is fixed on the said valve gap by the 3rd bolt and nut.
Compared with prior art, the beneficial effect of the utility model is: be embodied in the following aspects, first; Owing to adopt the interaction between multistage valve cage and the string data spool; Be separated into two shuntings to fluid, each shunt shaft is to a plurality of right-angled bends of process, in this process; Each turning all reduces by one more than the velocity head with the pressure of flowing medium, realizes classification step-down truly with this; The second, owing to adopt the Seal Design between string data spool and the multistage valve cage, make valve when opening less aperture, have certain sealing effect; When continuing to open valve; String data spool and valve base chamber have relatively large gap, throttle position are occurred between string data spool and the multistage valve cage, promptly a plurality of sacrifice modulating valve and a cut-off valve cascaded structure; Protect sealing surface effectively, prolonged the working life of whole valve; The 3rd, owing to adopt the shear constitution design between string data spool and the multistage valve cage, make valve that relatively more outstanding self-cleaning function arranged in running, can effectively solve problems such as valve blockage, crystallization.
Description of drawings
Fig. 1 is the structural representation of a kind of flow direction of the utility model.
Fig. 2 is the another kind of structural representation that flows to of the utility model.
Fig. 3 is the utility model schematic appearance.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 1, Fig. 2, Fig. 3: the utility model comprises: be arranged on the inner valve seat 3 of valve body 1; The both sides of said valve seat 3 are by 2 sealings of first pad; The multistage valve cage 4 of fixed in position on described valve seat 3; Second pad 6 that passes through both sides on the top of said multistage valve cage 4 contacts with valve gap 7; Settle first double-screw bolt 8 and nut 9 on both sides, described valve gap 7 top; At described multistage valve cage 4 fixing string data spools 5; Described string data spool 5 is led by guide pipe 10 and the guide pipe lining 11 about on its both sides; Between the both sides of described string data spool 5, up and down guide pipe 10 and guide pipe lining 11, settle filler disrance sleeve 16; Described filler disrance sleeve 16 is used for the isolation between two-part filler (13,14,15) up and down; Settle an anti-extrusion pad 12 respectively in the described outside of two-part filler (13,14,15) up and down; Above the guide pipe 10 on described top and guide pipe lining, also settle a hold-down grid 18; Described hold-down grid 18 is lock onto on the support folder 17 by second bolt 21 and nut 22; Described support folder 17 is fixed on the said valve gap 7 by the 3rd bolt 19 and nut 20.
Adopt relative floating to be connected between described valve seat 3 and the valve body 1.Thereby having reduced assembly error, made the relative self contering function that reaches valve core case in the assembly process, also is easy to maintenance simple.
Described valve seat 3 adopts the built-up welding stellite with the sealing surface of string data spool 5.Make the antiscour function of trim increase greatly, also make extend greatly the working life of valve.
Sealing surface between described string data spool 5 and the multistage valve cage 4 adopts the correct grinding mode to process.Increased the degree of regulation of whole valve.
Described string data spool 5 is multistage step-down axial flow valve core structures.Flow with multistage valve cage 4 axis along being parallel to string data spool 5 at axial flow spool inner fluid.Pressure is along the step-down step by step of the length direction of string data spool 5.Therefore, tangible pressure drop all appears in each level, and the result has prolonged the working life of trim greatly.
Described multistage valve cage 4 adopts multistage buck configuration, and mating reaction between the string data spool 5.Be separated into two shuntings to fluid, each shunt shaft is to through a plurality of right-angled bends, and in this process, each turning all reduces by one more than the velocity head with the pressure of flowing medium, realizes classification step-down truly with this.
Described string data spool 5 is full guide structure.In course of action, with multistage valve cage 4 and guide pipe 10, guide pipe lining 11 leading role is arranged all the time, make in the whole valve running more stablely, eliminated the vibration hidden danger in the valve running.
Be shear constitution between described string data spool 5 and the multistage valve cage 4.Make valve that relatively more outstanding self-cleaning function arranged in running, can effectively solve problems such as valve blockage, crystallization.
Seal Design between described string data spool 5 and the multistage valve cage 4; Make valve when opening less aperture, have certain sealing effect, when continuing to open valve, existing relatively large gap between string data spool 5 and the valve seat 3; Throttle position is occurred between string data spool 5 and the multistage valve cage 4; Be a plurality of sacrifice modulating valve and a cut-off valve cascaded structure, protected sealing surface effectively, prolonged the working life of whole valve.
The utility model belongs to bidirectional flow, and like Fig. 1 and Fig. 2, medium can flow to be opened, and also can flow and close.
The utility model valve inner is not threaded for having, the maintenance easy accessibility.Novel structure, science, reasonable.Have characteristics such as leakage rate is little, safe and reliable, automatically cleaning, long service life.
Claims (8)
1. the valve portion structure of a multistage string data high-performance modulating valve is characterized in that comprising: the valve seat that is arranged on valve inner; The both sides of said valve seat are by first gasket seal; The multistage valve cage of fixed in position on described valve seat; Second pad that passes through both sides on the top of said multistage valve cage contacts with valve gap; Settle first double-screw bolt and nut on both sides, described valve gap top; At the fixing string data spool of described multistage valve cage; Described string data spool is led by guide pipe and the guide pipe lining about on its both sides; Between the both sides of described string data spool, up and down guide pipe and guide pipe lining, settle the filler disrance sleeve; Described filler disrance sleeve is used for the isolation between two-part filler up and down; Settle an anti-extrusion pad respectively in the described outside of two-part filler up and down; Above the guide pipe on described top and guide pipe lining, also settle a hold-down grid; Described hold-down grid by second bolt and nut check on the support folder; Described support folder is fixed on the said valve gap by the 3rd bolt and nut.
2. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: adopt relative floating to be connected between described valve seat and the valve body.
3. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: the sealing surface of described valve seat and string data spool adopts the built-up welding stellite.
4. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: the sealing surface between described string data spool and the multistage valve cage adopts the correct grinding mode to process.
5. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: described string data spool is multistage step-down axial flow valve core structure.
6. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: described multistage valve cage adopts multistage buck configuration, and mating reaction between the string data spool.
7. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: described string data spool is full guide structure.
8. the valve portion structure of multistage string data high-performance modulating valve according to claim 1 is characterized in that: be shear constitution between described string data spool and the multistage valve cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205131538U CN202402655U (en) | 2011-12-09 | 2011-12-09 | Valve portion structure of multistage string type high-performance adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205131538U CN202402655U (en) | 2011-12-09 | 2011-12-09 | Valve portion structure of multistage string type high-performance adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402655U true CN202402655U (en) | 2012-08-29 |
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ID=46700304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205131538U Expired - Fee Related CN202402655U (en) | 2011-12-09 | 2011-12-09 | Valve portion structure of multistage string type high-performance adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781598A (en) * | 2012-11-14 | 2015-07-15 | 舍弗勒技术股份两合公司 | Solenoid valve plate |
| CN115596848A (en) * | 2022-10-20 | 2023-01-13 | 四川滨大阀门有限责任公司（Cn） | Multi-stage pressure reduction single-seat regulating valve |
-
2011
- 2011-12-09 CN CN2011205131538U patent/CN202402655U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781598A (en) * | 2012-11-14 | 2015-07-15 | 舍弗勒技术股份两合公司 | Solenoid valve plate |
| CN115596848A (en) * | 2022-10-20 | 2023-01-13 | 四川滨大阀门有限责任公司（Cn） | Multi-stage pressure reduction single-seat regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |