CN204922016U - Hard sealing sleeve governing valve of bivalve core - Google Patents
Hard sealing sleeve governing valve of bivalve core Download PDFInfo
- Publication number
- CN204922016U CN204922016U CN201520623980.0U CN201520623980U CN204922016U CN 204922016 U CN204922016 U CN 204922016U CN 201520623980 U CN201520623980 U CN 201520623980U CN 204922016 U CN204922016 U CN 204922016U
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- Prior art keywords
- valve
- sleeve
- big
- valve core
- core
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- 238000007789 sealing Methods 0.000 title abstract description 8
- 239000000945 filler Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 206010044565 Tremor Diseases 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a governing valve, the utility model discloses a hard sealing sleeve governing valve of bivalve core, it includes valve body (1), valve gap (2) and valve rod (3), be equipped with sleeve (4) in valve body (1), be equipped with in sleeve (4) and follow sleeve (4) inside wall gliding big case (5) from top to bottom, big case (5) are for including roof (50), bottom plate (51) and lateral wall (52) cylindric, valve rod (3) bottom is passed roof (50) and valve rod (3) bottom and is equipped with little case (6), little case (6) lie in big case (5) inside and can follow big case (5) inner wall and slide from top to bottom, be equipped with between little case (6) and bottom plate (51) spring (7). The utility model discloses guarantee under high -pressure state that balanced big case is stressed for vibrations about big case can not appear realize the valve body zero leakage, better satisfy the automatic control demand of various harsh technologies.
Description
Technical field
The utility model relates to a kind of modulating valve, has particularly related to a kind of hard seal sleeve modulating valve.
Background technique
Sleeve adjusting valve is as the important component part of modulating valve, the defects such as sleeve adjusting valve ubiquity flow curve deviation is in the market large, leakage rate is large, control accuracy is low, and hard seal sleeve modulating valve, leakage class is generally II level, cannot meet the automatic demand for control of high temperature, high pressure, high-leakage grade processing medium.
Summary of the invention
The defects such as the leakage rate that the utility model exists for sleeve adjusting valve of the prior art is large, control accuracy is low, provide the hard seal sleeve modulating valve of a kind of double spool.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
The hard seal sleeve modulating valve of double spool, comprise valve body, valve gap and valve rod, sleeve is provided with in valve body, the big valve core that can slide up and down along sleeve madial wall is provided with in sleeve, big valve core is the cylindrical shape comprising top board, base plate and sidewall, valve rod bottom is passed top board and is provided with small valve core, and small valve core is positioned at big valve core inside and can slides up and down along big valve core inwall, is provided with spring between small valve core and base plate.
During valve closing, spring can form pretightening force between big valve core and small valve core, ensures in a high voltage state, balance big valve core pressure, make big valve core there will not be vertical tremor, really realize hard-sealing zero and leak, better meet the automatic demand for control of various stringent process.
As preferably, base plate is provided with through hole, and small valve core bottom diameter is greater than through-hole diameter.Small valve core moves, the through hole on big valve core base plate is opened, thus the fluid in valve body flows in big valve core, makes to play certain pressure buffer function to valve body internal pressure before big valve core is opened.
As preferably, top board outer side wall is provided with outside thread, and big valve core top is provided with the internal thread of the upper outside screw-thread fit with top board, and top board is threaded with big valve core.Top board is threaded with big valve core, can facilitate the assembling of whole modulating valve.
As preferably, top board is provided with at least one mounting hole.Realize top board by the mounting hole force on top board to screw in or screw out, screwing fast and unscrewing of top board can be realized, namely facilitate spool assembling, the stability ensureing big valve core when small valve core drives big valve core to run can be made again.
As preferably, valve stem end is through valve gap and can slide up and down in valve gap, being provided with filler, being provided with pressing plate above filler, by arranging filler around valve rod, to ensure the sealing of valve, then making valve more safe and reliable between valve rod and valve gap.
As preferably, valve inner is S streamline flow passages, and sleeve lateral wall is provided with intercommunicating pore, and sleeve bottom end is fixed on the central position of valve body.Valve body is S streamline flow passages, can reduce droop loss, augmented flow, and sleeve is positioned at valve inner central position, advantageously in the support to big valve core closed positions, and can play the effect of sealing pair when closing big valve core, thus increases the sealing of valve.
As preferably, valve gap is connected on valve body upper-end surface, and valve gap and valve body joint are provided with middle flange seal ring, and sleeve and valve body joint are provided with sleeve seal circle.
The utility model, owing to have employed above technological scheme, has significant technique effect:
The utility model ensures in a high voltage state, and balance big valve core pressure, makes big valve core there will not be vertical tremor, realize valve body zero leakage, better meet the automatic demand for control of various stringent process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing in Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-valve body, 2-valve gap, 3-valve rod, 4-sleeve, 5-big valve core, 6-small valve core, 7-spring, 21-middle flange seal ring, 31-filler, 32-pressing plate, 40-intercommunicating pore, 41-sleeve seal circle, 50-top board, 51-base plate, 52-sidewall, 500-mounting hole, 510-through hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
The hard seal sleeve modulating valve of double spool, as shown in Figure 1 and Figure 2, comprise valve body 1, valve gap 2 and valve rod 3, valve gap 2 is connected on the upper-end surface of valve body 1 by stud, and valve gap 2 and valve body 1 joint are provided with middle flange seal ring 21, valve rod 3 is positioned at the inner and two ends of valve gap 2 all through valve gap 2, valve rod 3 can slide up and down and be provided with filler 31 between valve rod 3 and valve gap 2 in valve gap 2, be provided with pressing plate 32 above filler 31 and compress filler, by arranging filler 31 around valve rod 3, to ensure the sealing of valve, then make valve more safe and reliable.
Valve body 1 inside is S streamline flow passages, the center position of valve body 1 is provided with sleeve 4, sleeve 4 bottom be fixed on the center position of valve body 1 and sleeve 4 bottom be provided with sleeve seal circle 41 with valve body 1 joint, sleeve 4 top is fixed on valve body 1 upper end surface, ensure that sleeve 4 can be stably fixed at valve body 1 inner, sleeve 4 sidewall is provided with intercommunicating pore 40, is realized the connection at valve body 1 two ends by intercommunicating pore 40.The big valve core 5 that can slide up and down along sleeve 4 madial wall is provided with in sleeve 4, big valve core 5 is for comprising top board 50, the cylindrical shape of base plate 51 and sidewall 52, valve rod 3 bottom is passed top board 50 and is connected with small valve core 6, small valve core 6 is positioned at big valve core 5 inside and can slides up and down along big valve core 5 inwall, the multidiameter shaft that small valve core 6 reduces gradually for diameter from top to bottom, spring 7 is provided with between small valve core 6 and base plate 51, spring 7 upper end is against the ladder place of small valve core 6 multidiameter shaft, spring 7 lower end is against on the upper surface of big valve core 5 base plate, small valve core 6 is one-body molded with valve rod 3, reduce valve installation time, improve small valve core bearing load, then whole valve working stability is improved.
Top board 50 outer side wall is provided with outside thread, and big valve core 5 top is provided with the internal thread with the upper outside screw-thread fit of top board 50, and top board 50 is threaded with big valve core 5.Top board 50 is provided with at least one mounting hole 500.By mounting hole 500, top board 50 is screwed in big valve core 5 upper end, screw top board 50, ensure that top board 50 is connected with can stablize between big valve core 5.
During specific operation, the end that valve rod 3 stretches out valve gap 2 upper-end surface is connected with regulating-valve actuator, under the effect of actuator, band ovable valve stem 3 moves up and down, when valve body 1 opened by needs, now valve body 1 is in closed condition, valve body 1 inner fluid can produce one to big valve core 5 and upward pressure, now owing to being provided with spring 7 between small valve core 6 and big valve core 5, spring 7 pairs of big valve cores 5 apply a downward power, the hydrodynamic pressure of balance suffered by big valve core 5, avoids big valve core 5 in sleeve 4, to produce concussion when bearing High Pressure Difference.First valve rod 3 drives small valve core 6 upwards to operate under the effect of actuator, and big valve core 5 is still being in valve body position under the effect of spring 7, and small valve core 6 base plate 51 is provided with through hole 510, and small valve core 6 bottom diameter is greater than through hole 510 diameter.Small valve core 6 moves, the through hole 510 on big valve core 5 base plate 51 is opened, thus the fluid in valve body 1 flows in big valve core 5, makes to play certain pressure buffer function to valve body 1 internal pressure before big valve core 5 is opened.Small valve core 6 is moved upwards up to and contacts with the top board 50 of big valve core 5, then drives big valve core 5 to move up by top board 50, makes valve open.When needs valve body 1, valve rod 3 moves down under the effect of actuator, under the effect of spring 7, big valve core 5 moves down, finally make to be formed between big valve core 5 and sleeve 4 and seal, formed between small valve core 6 and big valve core 5 and seal, after valve body 1 closes completely simultaneously, spring 7 still can form pretightening force between big valve core 5 and small valve core 6, ensure in a high voltage state, big valve core 5 there will not be vertical tremor, really realize hard-sealing zero to leak, better meet the automatic demand for control of various stringent process.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. the hard seal sleeve modulating valve of double spool, comprise valve body (1), valve gap (2) and valve rod (3), it is characterized in that: in valve body (1), be provided with sleeve (4), the big valve core (5) that can slide up and down along sleeve (4) madial wall is provided with in sleeve (4), big valve core (5) is for comprising top board (50), the cylindrical shape of base plate (51) and sidewall (52), valve rod (3) bottom is through top board (50) and valve rod (3) bottom is provided with small valve core (6), small valve core (6) is positioned at big valve core (5) inside and can slides up and down along big valve core (5) inwall, spring (7) is provided with between small valve core (6) and base plate (51).
2. the hard seal sleeve modulating valve of double spool according to claim 1, it is characterized in that: base plate (51) is provided with through hole (510), small valve core (6) bottom diameter is greater than through hole (510) diameter.
3. the hard seal sleeve modulating valve of double spool according to claim 1, it is characterized in that: top board (50) outer side wall is provided with outside thread, big valve core (5) top is provided with the internal thread with top board (50) upper outside screw-thread fit, and top board (50) is threaded with big valve core (5).
4. the hard seal sleeve modulating valve of double spool according to claim 3, is characterized in that: top board (50) is provided with at least one mounting hole (500).
5. the hard seal sleeve modulating valve of double spool according to claim 1, it is characterized in that: valve rod (3) end is passed valve gap (2) and can be slided up and down in valve gap (2), be provided with filler (31) between valve rod (3) and valve gap (2), filler (31) top is provided with pressing plate (32).
6. the hard seal sleeve modulating valve of double spool according to claim 1, it is characterized in that: valve body (1) inside is S streamline flow passages, sleeve (4) sidewall is provided with intercommunicating pore (40), and sleeve (4) bottom is fixed on the central position of valve body (1).
7. the hard seal sleeve modulating valve of the double spool according to claim 1 or 6, it is characterized in that: valve gap (2) is connected on valve body (1) upper-end surface, valve gap (2) and valve body (1) joint are provided with middle flange seal ring (21), and sleeve (4) and valve body (1) joint are provided with sleeve seal circle (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623980.0U CN204922016U (en) | 2015-08-18 | 2015-08-18 | Hard sealing sleeve governing valve of bivalve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623980.0U CN204922016U (en) | 2015-08-18 | 2015-08-18 | Hard sealing sleeve governing valve of bivalve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922016U true CN204922016U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520623980.0U Expired - Fee Related CN204922016U (en) | 2015-08-18 | 2015-08-18 | Hard sealing sleeve governing valve of bivalve core |
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| Country | Link |
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| CN (1) | CN204922016U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485359A (en) * | 2016-02-05 | 2016-04-13 | 北京奥赛旗石油科技开发有限公司 | Combined control valve |
| CN105937630A (en) * | 2016-07-04 | 2016-09-14 | 南京华宁阀门有限公司 | Heat radiation type double-valve-clack adjusting stop type air vent valve |
| CN107975602A (en) * | 2016-10-21 | 2018-05-01 | 杭州三花研究院有限公司 | A kind of volume control device |
| CN110195783A (en) * | 2019-06-04 | 2019-09-03 | 四川长仪油气集输设备股份有限公司 | Piston valve core pressure self-balancing cut-off throttle valve |
-
2015
- 2015-08-18 CN CN201520623980.0U patent/CN204922016U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485359A (en) * | 2016-02-05 | 2016-04-13 | 北京奥赛旗石油科技开发有限公司 | Combined control valve |
| CN105485359B (en) * | 2016-02-05 | 2017-09-29 | 北京奥赛旗石油科技开发有限公司 | Compound control valve |
| CN105937630A (en) * | 2016-07-04 | 2016-09-14 | 南京华宁阀门有限公司 | Heat radiation type double-valve-clack adjusting stop type air vent valve |
| CN105937630B (en) * | 2016-07-04 | 2020-04-24 | 南京华宁阀门有限公司 | Heat dissipation type double-valve-clack adjusting stop type air exhaust valve |
| CN107975602A (en) * | 2016-10-21 | 2018-05-01 | 杭州三花研究院有限公司 | A kind of volume control device |
| CN107975602B (en) * | 2016-10-21 | 2021-10-15 | 杭州三花研究院有限公司 | Flow control device |
| CN110195783A (en) * | 2019-06-04 | 2019-09-03 | 四川长仪油气集输设备股份有限公司 | Piston valve core pressure self-balancing cut-off throttle valve |
| CN110195783B (en) * | 2019-06-04 | 2023-01-06 | 四川长仪油气集输设备股份有限公司 | Piston type valve core pressure self-balancing stop throttle 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: 20151230 |