CN204784791U - Flashboard formula control valve - Google Patents
Flashboard formula control valve Download PDFInfo
- Publication number
- CN204784791U CN204784791U CN201520495098.2U CN201520495098U CN204784791U CN 204784791 U CN204784791 U CN 204784791U CN 201520495098 U CN201520495098 U CN 201520495098U CN 204784791 U CN204784791 U CN 204784791U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- cage
- gap
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims description 21
- 239000000945 filler Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 14
- 241000446313 Lamella Species 0.000 abstract 2
- 230000001447 compensatory effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model discloses a flashboard formula control valve, it includes a valve body and one locates valve gap on the valve body, be equipped with a disk seat and a case in the valve body, the case is worn to locate disk seat and valve gap, the case with be equipped with a valve cage between the valve body, one side of case with be equipped with a valve cage main valve lamella between the valve cage, the opposite side of case with be equipped with the vice valve clack of a valve cage between the valve cage, the case is equipped with a through -hole, be equipped with a dish spring in the through -hole and locate the sealed disc of case at the both ends of dish spring, two the sealed disc of case respectively the butt in valve cage main valve lamella with the vice valve clack of valve cage. The utility model discloses a flashboard formula control valve has good sealing performance, and the dish spring also can provide good pretightning force and the compensatory ability of high temperature under high temperature working condition, makes the valve not have phenomenons such as the card hinders, locking under the high temperature situation.
Description
Technical field
The utility model relates to a kind of flashboard type control valve.
Background technique
Flashboard type control valve is mainly used in high temperature, high pressure, medium may containing particle and velocity ratio operating mode faster, or the special harsh operating mode higher to the degree of regulation of valve, control characteristic and leakage class.
Existing a lot of flashboard type control valve is in the operating mode of high temperature, high pressure, and its sealing effect is poor.
Model utility content
The technical problems to be solved in the utility model is the defect in order to overcome the sealing effect difference that prior art exists, and provides a kind of flashboard type control valve.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of flashboard type control valve, it comprises a valve body and and is located at valve gap on described valve body, a valve seat and a spool is provided with in described valve body, described spool is arranged in described valve seat and valve gap, its feature is, a valve cage is provided with between described spool and described valve body, a valve cage main valve clack is provided with between the side of described spool and described valve cage, the secondary flap of a valve cage is provided with between the opposite side of described spool and described valve cage, described spool is provided with a through hole, be provided with a disc spring in described through hole and be located at the seal spool disc at two ends of described disc spring, seal spool disc described in two is connected to described valve cage main valve clack and the secondary flap of described valve cage respectively.
Preferably, described valve cage is equipped with at least one bolt, the end of described bolt and the secondary flap of described valve cage abut against.
Preferably, described bolt is three.
Preferably, described valve cage is positioned at the top of described valve seat, is provided with the first seal ring between described valve cage and described valve seat.
Preferably, described valve cage is positioned at the below of described valve gap, is provided with the second seal ring between described valve gap and described valve cage.
Preferably, be provided with a guide pipe between described spool and described valve gap, described guide pipe is embedded at described valve gap.
Preferably, be also provided with one first packing elements between described spool and described valve gap, described first packing elements is positioned at the top of described guide pipe.
Preferably, be also provided with a filler disrance sleeve between described spool and described valve gap, described filler disrance sleeve is positioned at the top of described first packing elements.
Preferably, be also provided with one second packing elements between described spool and described valve gap, described second packing elements is positioned at the top of described filler disrance sleeve.
Preferably, the top of described second packing elements is provided with a hold-down grid, and described spool is arranged in described hold-down grid, and described hold-down grid is fixed in described valve gap.
Positive progressive effect of the present utility model is: flashboard type control valve of the present utility model, adopts double sealing structure, on traditional sealing configuration basis, adopts pressure self-sealing structure.This pressure self-sealing structure is made up of disc spring and seal spool disc.Disc spring applies pressure to seal spool disc, makes seal spool disc be close to valve cage main valve clack, like this, make close contact between valve cage main valve clack and valve cage, thus raising sealability, even if make valve in Long-Time Service process, also good sealability can be ensured.In addition, under worst hot case, disc spring also can provide good pretightening force and high temperature compensation performance, makes valve not have the phenomenon such as jam, locking under high-temperature situation.Under disc spring effect, seal spool disc is close to valve cage main valve clack, and moving up and down of valve rod drives seal spool disc to move up and down, and therefore, there is self-grind effect in valve running.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
As shown in Figure 1, a kind of flashboard type control valve, it valve gap 27 comprising valve body 5 and be located on valve body 5, valve seat 7 and spool 11 is provided with in valve body 5, spool 11 is arranged in valve seat 7 and valve gap 27, valve cage 9 is provided with between spool 11 and valve body 5, valve cage main valve clack 10 is provided with between the side of spool 11 and valve cage 9, the secondary flap 33 of valve cage is provided with between the opposite side of spool 11 and valve cage 9, spool 11 is provided with through hole, be provided with disc spring 35 in through hole and be located at the seal spool disc 34 at two ends of disc spring 35, two seal spool discs 34 are connected to valve cage main valve clack 10 and the secondary flap 33 of valve cage respectively.Moving up and down of valve rod 11 drives seal spool disc 34 to move up and down.
Valve cage 9 is equipped with three bolts 32, the end of bolt 32 and the secondary flap 33 of valve cage abut against, and control the distance between the secondary flap 33 of valve cage and valve cage 9 by the screw-in depth of control bolt 32 on valve cage 9.Valve cage 9 is positioned at the top of valve seat 7, is provided with the first seal ring 8 between valve cage 9 and valve seat 7.Valve cage 9 is positioned at the below of valve gap 27, is provided with the second seal ring 12 between valve gap 27 and valve cage 9.
Be provided with guide pipe 30 between spool 11 and valve gap 27, guide pipe 30 is embedded at valve gap 27.The top that the first packing elements 28, first packing elements 28 is positioned at guide pipe 30 is also provided with between spool 11 and valve gap 27.Also be provided with filler disrance sleeve 17 between spool 11 and valve gap 27, filler disrance sleeve 17 is positioned at the top of the first packing elements 28.The top that the second packing elements 18, second packing elements 18 is positioned at filler disrance sleeve 17 is also provided with between spool 11 and valve gap 27.The top of the second packing elements 18 is provided with hold-down grid 23, and spool 11 is arranged in hold-down grid 23, and hold-down grid 23 is fixed in valve gap 27.Guide pipe 30 plays the leading role in spool 11 running.Second packing elements 18, first packing elements, 28 pairs of spool 11 parts seal and play leading role.Stopping shim 16, filler disrance sleeve 17 play the effect isolating upper and lower two-part filler.Support clamp 26 connects valve gap 27 and actuator.Hold-down grid 23, for compressing filler, gives gland sealed pretightening force.Bolt 21, nut 22, for bonding pad pressing plate 23 and support clamp 26, give packing seal pretightening force.Bolt 24, nut 25 are for connecting two-part support clamp 26.
Be valve base 3 below valve body 5, valve body 5 is affixed by bolt 1, nut 2 with valve base 3, reaches sealing effect by pad 4.Valve seat 7 is located in valve body 5, reaches sealing effect by pad 6.Between valve gap 27 and valve body 5, reach sealing effect by pad 31.Bonnet flange 13 is sheathed on valve gap 27, affixed by bolt 14, nut 15.Bolt 14, nut 15 give pad 6, first seal ring 8, second seal ring 12, pad 31 seal preload.
The flashboard type control valve of the present embodiment, adopts double sealing structure, on traditional sealing configuration basis, adopts pressure self-sealing structure.This pressure self-sealing structure is made up of disc spring and seal spool disc.Disc spring applies pressure to seal spool disc, makes seal spool disc be close to valve cage main valve clack, like this, make close contact between valve cage main valve clack and valve cage, thus raising sealability, even if make valve in Long-Time Service process, also good sealability can be ensured.In addition, under worst hot case, disc spring also can provide good pretightening force and high temperature compensation performance, makes valve not have the phenomenon such as jam, locking under high-temperature situation.Under disc spring effect, seal spool disc is close to valve cage main valve clack, and moving up and down of valve rod drives seal spool disc to move up and down, and therefore, there is self-grind effect in valve running.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these change and amendment all falls into protection domain of the present utility model.
Claims (10)
1. a flashboard type control valve, it comprises a valve body and and is located at valve gap on described valve body, a valve seat and a spool is provided with in described valve body, described spool is arranged in described valve seat and valve gap, it is characterized in that, a valve cage is provided with between described spool and described valve body, a valve cage main valve clack is provided with between the side of described spool and described valve cage, the secondary flap of a valve cage is provided with between the opposite side of described spool and described valve cage, described spool is provided with a through hole, be provided with a disc spring in described through hole and be located at the seal spool disc at two ends of described disc spring, seal spool disc described in two is connected to described valve cage main valve clack and the secondary flap of described valve cage respectively.
2. flashboard type control valve as claimed in claim 1, is characterized in that, described valve cage is equipped with at least one bolt, and the end of described bolt and the secondary flap of described valve cage abut against.
3. flashboard type control valve as claimed in claim 2, it is characterized in that, described bolt is three.
4. flashboard type control valve as claimed in claim 2, it is characterized in that, described valve cage is positioned at the top of described valve seat, is provided with the first seal ring between described valve cage and described valve seat.
5. flashboard type control valve as claimed in claim 2, it is characterized in that, described valve cage is positioned at the below of described valve gap, is provided with the second seal ring between described valve gap and described valve cage.
6. flashboard type control valve as claimed in claim 2, it is characterized in that, be provided with a guide pipe between described spool and described valve gap, described guide pipe is embedded at described valve gap.
7. flashboard type control valve as claimed in claim 6, it is characterized in that, be also provided with one first packing elements between described spool and described valve gap, described first packing elements is positioned at the top of described guide pipe.
8. flashboard type control valve as claimed in claim 7, it is characterized in that, be also provided with a filler disrance sleeve between described spool and described valve gap, described filler disrance sleeve is positioned at the top of described first packing elements.
9. flashboard type control valve as claimed in claim 8, it is characterized in that, be also provided with one second packing elements between described spool and described valve gap, described second packing elements is positioned at the top of described filler disrance sleeve.
10. flashboard type control valve as claimed in claim 9, it is characterized in that, the top of described second packing elements is provided with a hold-down grid, and described spool is arranged in described hold-down grid, and described hold-down grid is fixed in described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495098.2U CN204784791U (en) | 2015-07-09 | 2015-07-09 | Flashboard formula control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495098.2U CN204784791U (en) | 2015-07-09 | 2015-07-09 | Flashboard formula control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784791U true CN204784791U (en) | 2015-11-18 |
Family
ID=54524841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520495098.2U Expired - Fee Related CN204784791U (en) | 2015-07-09 | 2015-07-09 | Flashboard formula control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784791U (en) |
-
2015
- 2015-07-09 CN CN201520495098.2U patent/CN204784791U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |