CN102168768B - Anti-blockage cutoff non-return regulating valve - Google Patents
Anti-blockage cutoff non-return regulating valve Download PDFInfo
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- CN102168768B CN102168768B CN2011100992056A CN201110099205A CN102168768B CN 102168768 B CN102168768 B CN 102168768B CN 2011100992056 A CN2011100992056 A CN 2011100992056A CN 201110099205 A CN201110099205 A CN 201110099205A CN 102168768 B CN102168768 B CN 102168768B
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Abstract
The invention discloses an anti-blockage cutoff non-return regulating valve, which comprises a valve body, a valve core, a valve stem, a valve seat and a valve stem operating mechanism, wherein two flow passages which are different in height are arranged in the valve body; a liquid inlet flow passage is arranged at a low position, a liquid outlet flow passage is arranged at a high position, and the liquid inlet flow passage is communicated with the liquid outlet flow passage by a middle flow passage; the valve seat is arranged at the middle passage; the valve core is concentric with the valve seat and forms a sealing pair with the valve seat; and a filter is arranged on the upper edge of the liquid inlet flow passage along the liquid inlet direction. The invention has the advantage that when the anti-blockage cutoff non-return regulating valve is used, the filtering of impurities in a fluid medium, the regulation of fluid flow and the emergent non-return and cutoff function can be realized, so that the valve is prevented from being blocked, can perform effective and high-accuracy regulation for a long term and used safely, and is in long service life.
Description
Technical field
The invention belongs to valve technology field, in particular a kind of can anti-sticking in the comparatively abominable flowing medium of condition anti-blocking, permanently effective highi degree of accuracy is regulated and urgent non-return cuts off function anti-sticking intercept only non-return modulating valve.
Background technique
Cause foreign material such as welding slag to get into valve pocket owing to the reason of engineering construction inner; Perhaps the easily damaged parts foreign material of other equipment before the valve usually cause phenomenons such as modulating valve blocks, blocks up, can't proper functioning; Even influence the normal operation of other equipment in the pipe-line system, caused great potential safety hazard.Though and certain measure has been taked in some aspect of existing technology; But there are not thoroughly to solve the effective ways of card and stifled problem all the time; The function that does not more possess automatic braking, emergency cut-off, using effect are not good, can't carry out long-term highi degree of accuracy adjusting and long lifetime, safe handling.
Summary of the invention
The objective of the invention is in the comparatively abominable flowing medium of condition, can intercept only non-return modulating valve by the anti-blocking anti-sticking of anti-sticking and provide a kind of in order to overcome the shortcoming and defect that existing technology exists.
For realizing above-mentioned purpose, technological scheme of the present invention is to comprise valve body, spool, valve rod, valve seat and valve rod operating device, is provided with high and low two different runners in the said valve body; What wherein be arranged at lower is the feed liquor runner; The pinnacled fluid runner that is is set, and both are communicated with through intermediate flow channel, and valve seat is arranged on the intermediate flow channel place; Spool is concentric and constitute sealing pair with valve seat with valve seat, on the feed liquor direction of described feed liquor runner upper edge filter is set.Through this setting, utilize to be filtered device and feed liquor to be intercepted and filters removing, make that what enter into spool and outlet passage will be the medium of cleaning, the card of having protected spool, valve seat to avoid solid particle and foreign material blocks up and washes away, and has improved its working life.
On the feed liquor runner that further setting is described valve seat lower end filter is set.This setting preferably is arranged on filter the feed liquor runner position of valve seat lower end, makes things convenient for arrangement of mechanism.
Further being provided with is also to include gland, and the lower end of relative filter is provided with opening slot on the described valve body, and described gland removable seal is fixed on the opening slot place of valve body.Through this setting, convenient with after the gland dismounting, the filter of the feed liquor runner of valve seat lower end is carried out clean and maintenance.
Further being provided with is that described center spool axle position is provided with the slippage through hole; The lower end of described valve rod is provided with and the adaptive slip shaft of slippage through hole slippage; Spool on the slip shaft of valve rod, move axially and with mutual sealing setting, between said spool upper end and the valve rod resetting-mechanism is set.Through this setting, in case when feed liquor runner pressure medium occurring and being lower than fluid runner pressure medium, spool will automatically or rely on valve seat fast under the effect of resetting-mechanism, close and cut off, and guarantee the safety of pipe-line system.
The curved surface that further setting is described spool has equal percentage or linear flow flow characteristic.To satisfy the Flow-rate adjustment requirement of modulating valve.
Further be provided with is that described filter is made for the method for on solid sleeve wall, boring tiny through hole.This is provided with can also be that described filter includes sleeve, is filled with the filtrating packing in the barrel of this sleeve.
Further setting is that the resetting-mechanism of described spool upper end is pressure spring, dish spring or resilient rubbber cushion.
Further be provided with is that said gland is threaded or bolt Placement removable seal is fixed on the opening slot place of valve body.
Further being provided with is that described valve rod operating device is a handwheel.
Advantage of the present invention is to cut off function through the adjusting of the filtration that can realize foreign material in the flowing medium to enforcement of the present invention, fluid flow and urgent non-return, to guarantee anti-blocking, the permanently effective highi degree of accuracy adjusting of valve anti-sticking, long lifetime and to use safely.
Below in conjunction with Figure of description and embodiment the present invention is done further introduction.
Description of drawings
Fig. 1 specific embodiment of the invention structural representation;
Fig. 2 specific embodiment of the invention I portion enlarged view;
Embodiment
Through embodiment the present invention is carried out concrete description below; Only be used for the present invention is further specified; Can not be interpreted as the qualification to protection domain of the present invention, the technician in this field can make some nonessential improvement and adjustment to the present invention according to the content of foregoing invention.
Embodiment of the present invention shown in Fig. 1-2 comprises valve body 1, spool 5, valve rod 7, valve seat 4 and valve rod operating device, is provided with high and low two different runners in the said valve body 1; What wherein be arranged at lower is feed liquor runner 11, and the pinnacled fluid runner 12 that is is set, and both are communicated with through intermediate flow channel 13; Valve seat 4 is arranged on intermediate flow channel 13 places; Spool 5 and valve seat 4 are concentric and constitute sealing pairs with valve seat 4, on the described feed liquor runner 11 upper edge feed liquor directions filter 3 are set, and the described filter 3 of present embodiment is arranged on feed liquor runner 11 positions of valve seat lower end; In addition; Also include gland 2, the lower end of relative filter 3 is provided with opening slot 14 on the described valve body 1, and described gland 2 removable seals are fixed on opening slot 14 places of valve body.Particularly; Gland 2 is through being threaded or bolt Placement removable seal is fixed on opening slot 14 places of valve body; The described valve rod operating device of present embodiment is a handwheel 9; This handwheel realizes that through drive nut 8 handwheel 9 rotations cooperate with valve rod 7 up-downs, and the user guarantees the highi degree of accuracy adjusting of valve under the effect of operation handwheel 9 and drive nut 8.
The easily damaged parts of other equipment and foreign material are when valve advances medium runner and gets into valve cavity before welding slag that causes owing to the engineering construction reason or the valve; At first will be filtered device 3 and intercept and filter removing; What enter into spool 5 and medium runner will be the medium of cleaning; The card of having protected spool 5, valve seat 4 to avoid solid particle and foreign material blocks up and washes away, and has prolonged the working life of valve.Filter of the present invention is made for the method for on solid sleeve wall, boring tiny through hole, and perhaps described filter includes sleeve, is filled with the filtrating packing in the barrel of this sleeve.This filter of present embodiment is made for the method for on solid sleeve wall, boring tiny through hole.
In addition; The described spool of present embodiment 5 central shaft positions are provided with slippage through hole 51; The lower end of described valve rod 7 is provided with and the adaptive slip shaft 71 of slippage through hole 51 slippages; Spool 5 moves axially on the slip shaft 71 of valve rod and seals setting each other with the two, between said spool 5 upper ends and the valve rod 7 resetting-mechanism is set.In case when feed liquor runner 11 pressure mediums occurring and being lower than fluid runner 12 pressure mediums, spool 5 will automatically or rely on valve seat fast under the effect of resetting-mechanism, close and cut off, and guarantee the safety of pipe-line system.The present embodiment resetting-mechanism is modes such as pressure spring 6, dish spring or resilient rubbber cushion, and this resetting-mechanism of present embodiment is preferably pressure spring 6.
In addition, the curved surface of described spool has equal percentage or linear flow flow characteristic, to meet the requirements of traffic requirement.
Spool 5 is compelled all the time under the effect of the effect of gravity or pressure spring 6 to move to valve seat 4 directions along slip shaft; In case and the fluid flowpath pressure is during more than or equal to the feed liquor flowpath pressure; Spool 5 immediately automatic braking, block fast and close, play the effect of emergency cut-off.
After technique scheme is implemented; Effect through the valve rod operating device; 7 pairs of spools of actuatable valve bar 5 carry out highi degree of accuracy adjusting, keying and cut-off valve, and through the cooperating and the effect of gravity or pressure spring 6 of spool 5 and valve rod 7 and slideway thereof, can realize the urgent automatic braking cut-out of valve; Add the filtration scavenging action of filter 3, guaranteeing anti-blocking, the permanently effective highi degree of accuracy adjusting of valve anti-sticking, long lifetime and use safely fully.
Claims (7)
1. an anti-sticking is intercepted only non-return modulating valve, comprises valve body, spool, valve rod, valve seat and valve rod operating device, is provided with high and low two different runners in the said valve body; What wherein be arranged at lower is the feed liquor runner; The pinnacled fluid runner that is is set, and both are communicated with through intermediate flow channel, and valve seat is arranged on the intermediate flow channel place; Spool is concentric and constitute sealing pair with valve seat with valve seat; It is characterized in that: on the feed liquor direction of described feed liquor runner upper edge filter is set, also includes gland, the lower end of relative filter is provided with opening slot on the described valve body; Described gland removable seal is fixed on the opening slot place of valve body; Said gland is threaded or bolt Placement removable seal is fixed on the opening slot place of valve body, and described center spool axle position is provided with the slippage through hole, and the lower end of described valve rod is provided with and the adaptive slip shaft of slippage through hole slippage; Spool moves axially on the slip shaft of valve rod and the two seals setting each other, between said spool upper end and the valve rod resetting-mechanism is set.
2. a kind of anti-sticking according to claim 1 is intercepted only non-return modulating valve, it is characterized in that: on the feed liquor runner of described valve seat lower end filter is set.
3. a kind of anti-sticking according to claim 2 is intercepted only non-return modulating valve, and it is characterized in that: the curved surface of described spool has equal percentage or linear flow flow characteristic.
4. a kind of anti-sticking according to claim 2 is intercepted only non-return modulating valve, it is characterized in that: described filter is made for the method for on solid sleeve wall, boring tiny through hole.
5. a kind of anti-sticking according to claim 2 is intercepted only non-return modulating valve, and it is characterized in that: described filter includes sleeve, is filled with the filtrating packing in the barrel of this sleeve.
6. a kind of anti-sticking according to claim 1 is intercepted only non-return modulating valve, it is characterized in that: the resetting-mechanism of described spool upper end is dish spring or resilient rubbber cushion.
7. a kind of anti-sticking according to claim 1 is intercepted only non-return modulating valve, and it is characterized in that: described valve rod operating device is a handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100992056A CN102168768B (en) | 2011-04-20 | 2011-04-20 | Anti-blockage cutoff non-return regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100992056A CN102168768B (en) | 2011-04-20 | 2011-04-20 | Anti-blockage cutoff non-return regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168768A CN102168768A (en) | 2011-08-31 |
| CN102168768B true CN102168768B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100992056A Active CN102168768B (en) | 2011-04-20 | 2011-04-20 | Anti-blockage cutoff non-return regulating valve |
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| CN (1) | CN102168768B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930209A (en) * | 2015-06-23 | 2015-09-23 | 泰州市扬联船用阀门有限公司 | Regulating valve |
| CN105333187A (en) * | 2015-11-27 | 2016-02-17 | 扬中市通发实业有限公司 | Pressure regulating valve |
| CN107869607B (en) * | 2017-11-08 | 2020-11-03 | 江苏国泉泵业制造有限公司 | Non-return type pressure seal regulating valve |
| CN114483987A (en) * | 2021-12-09 | 2022-05-13 | 沈阳航天新光集团有限公司 | Flow regulating valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2360684Y (en) * | 1999-02-04 | 2000-01-26 | 米力田 | Prefiltering double sealed sub-discharing valve |
| CN101586667A (en) * | 2009-06-19 | 2009-11-25 | 林文华 | High Pressure Difference, fine setting modulating valve |
| CN201764036U (en) * | 2010-05-19 | 2011-03-16 | 浙江超达阀门股份有限公司 | Spring direct action type constant-pressure check valve |
| CN202032136U (en) * | 2011-04-20 | 2011-11-09 | 林文华 | Anti-blocking stop and check adjusting valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246346A (en) * | 1997-03-04 | 1998-09-14 | Tgk Co Ltd | Rate adjusting valve |
-
2011
- 2011-04-20 CN CN2011100992056A patent/CN102168768B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2360684Y (en) * | 1999-02-04 | 2000-01-26 | 米力田 | Prefiltering double sealed sub-discharing valve |
| CN101586667A (en) * | 2009-06-19 | 2009-11-25 | 林文华 | High Pressure Difference, fine setting modulating valve |
| CN201764036U (en) * | 2010-05-19 | 2011-03-16 | 浙江超达阀门股份有限公司 | Spring direct action type constant-pressure check valve |
| CN202032136U (en) * | 2011-04-20 | 2011-11-09 | 林文华 | Anti-blocking stop and check adjusting valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-246346A 1998.09.14 |
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| CN102168768A (en) | 2011-08-31 |
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