CN100507325C - Hard-sealing zero-abrasion peeling valve - Google Patents
Hard-sealing zero-abrasion peeling valve Download PDFInfo
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- CN100507325C CN100507325C CNB2007100359300A CN200710035930A CN100507325C CN 100507325 C CN100507325 C CN 100507325C CN B2007100359300 A CNB2007100359300 A CN B2007100359300A CN 200710035930 A CN200710035930 A CN 200710035930A CN 100507325 C CN100507325 C CN 100507325C
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- valve rod
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Abstract
The invention discloses a hard seal zero wear rotating cutting valve, wherein, a seal surface of a valve plug (26) and a seal surface of a valve body (20) adopt hard seal; an upper valve rod (3) is provided with a guide groove (12), a bracket (13) is fixed with a guide pin (10), one end of which is inserted into the guide groove (12); a lower end of the upper valve rod (3) is hinged with one end of a connecting rod (22), while the other end of the connecting rod (22) is hinged with one end of a spool shoe plate (24), a valve plug (26) is inserted into the spool shoe plate (24) through a handle part with threads; through the contact of spherical pair and positioning of a screw cap (25), a lower end of the spool shoe plate (24) is hinged with one end of a lower valve rod (28) which has the same axis as the upper valve rod (3) , and the other end of the lower valve rod (28) is arranged in a bottom shaft hole of the valve body (20). The invention is a hard seal zero wear rotating cutting valve which has high strength, wear resistance, high temperature resistance and low torque, and can fulfill the using requirements under high temperature and high pressure.
Description
Technical field
The present invention relates to a kind of valve, particularly relate to a kind of hard-sealing zero-abrasion peeling valve.
Technical background
Existing ball valve is soft sealing structure or seals the floating valve seat structure firmly.Because sealing surface and floating valve seat adopt flexible materials such as rubber or plastics to make Sealing, all there are defectives such as intensity is low, easy to wear, non-refractory in two kinds of structural types, can not satisfy the usage requirement of high temperature and high pressure condition.
Summary of the invention
Technical problem to be solved by this invention provides a kind of intensity height, and wear-resistant, high temperature resistant, low moment of torsion can satisfy the hard-sealing zero-abrasion peeling valve of high temperature and high pressure condition usage requirement.
In order to solve the problems of the technologies described above, hard-sealing zero-abrasion peeling valve provided by the invention, comprise valve body, spool, spool dunnage, valve gap and support, be installed in upper valve rod and the lower valve rod that is installed in the valve body bottom on valve gap and the support, the sealing surface of described spool and the sealing surface of valve body adopt hard sealing; Described upper valve rod is provided with guiding groove, and support is provided with guide finger, and described guide finger one end inserts and forces the orbiting motion of described upper valve rod along described guiding groove in the described guiding groove; One end of the lower end of described upper valve rod and connecting rod is hinged, and the other end of described connecting rod and described spool dunnage are hinged; Described spool inserts in the spool dunnage by the threaded handle in end, the spherical step of handle realizes that with the taper hole on the spool dunnage spherical pair contacts, be with on the end thread of handle and cap, with and the free gap of cap adjustable valve core, adjust after the appropriate gap and cap has locking processing; Described spool dunnage lower end and lower valve rod one end are hinged, and described lower valve rod and described upper valve rod coaxial line and the other end are located in the bottom axis hole of described valve body.
As a kind of improvement of the present invention, described lower valve rod is connected with adjusting screw rod with gland nut by divided ring, and described adjusting screw rod is connected and its side of being provided with, lower end tenon with tapped hole on the cover plate by the screw thread at its middle part; Locking nut by thread bush on described adjusting screw rod, and with cover plate locking, prevent that adjusting screw rod is loosening; Described cover plate is connected with described valve body by the 4th bolt and nut.Bottom covers described adjusting screw rod and is connected with described cover plate by the 5th bolt and nut.
Adopt the hard-sealing zero-abrasion peeling valve of technique scheme, because the sealing surface of spool and the sealing surface of valve body adopt hard sealing, thereby it is low to have overcome intensity, defectives such as easy to wear, non-refractory, this valve intensity height, high temperature resistant, zero wearing and tearing, low moment of torsion can satisfy the usage requirement of high temperature and high pressure condition.This valve can design soft sealing structure as required based on hard seal form.
When driving valve, handwheel drives the Stem Mut rotation, make on the upper valve rod by screw thread and to move, this moment, guide finger was in the straight trough part of upper valve rod guiding groove, upper valve rod drives the spool dunnage upwards by connecting rod, move to deviating from sealing surface, thereby the sealing surface of spool and the sealing surface of valve body are recessed backward rapidly with approximate stop valve opening ways, after two sealing surfaces separate certain distance, guide finger changes the spiral chute part over to by the straight trough of upper valve rod, Stem Mut continues to drive valve rod and rises, force the spool dunnage to drive spool and rise and half-twist the valve complete opening along the track of guiding groove; When closing valve, upper valve rod moves down, being subjected to the guide finger restriction must move along the helical trajectory of guiding groove, driving the spool dunnage by connecting rod descends and half-twist, guide finger is got back to upper valve rod guiding groove straight trough part, is rotated further handwheel upper valve rod is descended, force connecting rod push down the spool dunnage downwards, to drawing close the sealing surface motion, make the sealing surface of spool and the sealing surface of valve body close the rapid pressing of mode with approximate stop valve, valve is closed fully; Driving valve and closing in the process of valve core rotation, sealing surface is contactless all the time.Valve seal is the conical surface, and spool is a sphere, contacts by the spherical pair of spool with the spool dunnage simultaneously, but makes the spool free floating, has and looks for middle ability automatically.Because the influence of component machining error, during assembling, valve core sealed cover may be misfitted in Vertical direction with valve body sealing surface; At this moment, thereby can rotate the height that adjusting screw rod is adjusted lower valve rod with spanner, with the height of adjustment spool dunnage, so that the height of adjustment spool, the sealing surface of its sealing surface and valve body is fitted like a glove, reach the leakage test requirement.
In sum, adopt the hard-sealing zero-abrasion peeling valve of technique scheme, because the sealing surface of spool and the sealing surface of valve body adopt hard sealing, the sealing surface motion conditions is to break away from rotation more earlier, thereby it is low to have overcome intensity, defective such as easy to wear, non-refractory, this hard-sealing zero-abrasion peeling valve intensity height, wear-resistant, high temperature resistant, low moment of torsion can satisfy the usage requirement of high temperature and high pressure condition.This hard-sealing zero-abrasion peeling valve can design soft sealing structure as required based on hard seal form.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present invention.
Embodiment
Referring to accompanying drawing, handwheel 1 is connected with Stem Mut 4 by parallel key 5, and protective housing 6 is enclosed within on the Stem Mut 4, and protective housing 6 is locked by locking nut 2 with handwheel 1; Have capillary groove on the support 13; The screw rod of upper valve rod 3 can rotate under the transmission of Stem Mut 4 and move up and down; First plane bearing 9 and second plane bearing 91 are housed on the cylindrical of Stem Mut 4, be fixed in by bearing gland 7 in the top circular hole of support 13, bearing gland 7 is connected with support 13 by the screw thread on the cylindrical, swivel bearing gland 7 can be adjusted the gap of first plane bearing 9 and second plane bearing 91, first plane bearing 9 and second plane bearing 91 are rotated flexibly, and prevent the loosening of bearing gland 7 by the Cock screw 8 that is installed in the support 13 top tapped holes; The middle part symmetry of support 13 has two apertures, wherein is fixed with guide finger 10, and the other end of guide finger 10 inserts in the guiding groove 12 of upper valve rod 3, forces the orbiting motion of upper valve rod 3 along guiding groove 12, and the guide finger end is by screw 11 location; The bottom of support 13 is provided with seam, cooperates with seam on the valve gap 18, is connected with valve gap 18 by second bolt and nut 17; Filler 16 is installed in the stuffing box of valve gap 18, compresses with Gland 15, and is connected with valve gap 18 by first bolt 14; The bottom of valve gap 18 is provided with seam, cooperates with seam on the valve body 20, and is connected with valve body 20 by the 3rd bolt and nut 19; The lower end of upper valve rod 3 is provided with circular hole, and is hinged with an end of connecting rod 22 by first bearing pin 21, and the other end of connecting rod 22 is hinged with spool dunnage 24 by second bearing pin 23; Spool 26 shanks insert in the spool dunnage 24, the spherical step of handle realizes that with the taper hole on the spool dunnage 24 spherical pair contacts, the helical thread portion of handle is with and cap 25, by and the free gap of cap 25 adjustable valve cores 26, adjust after the appropriate gap and cap 25 has locking processing; The spherical sealing surface of spool 26 and the bevel sealing surface of valve body 20 adopt hard sealing; Spool dunnage 24 lower ends have aperture equally, be connected with lower valve rod 28 by the 3rd bearing pin 27, the other end of lower valve rod 28 inserts in the bottom axis hole of valve body 20, and be connected with adjusting screw rod 31 with gland nut 30 by divided ring 29, adjusting screw rod 31 can rotate freely in the axis hole of the lower end of lower valve rod 28, but can not move up and down; Adjusting screw rod 31 is connected with tapped hole on the cover plate 33 by the screw thread at its middle part, and the side of being provided with, the lower end tenon 37 of adjusting screw rod 31 can be applied mechanically adjustable spanner and pull adjusting screw rod 31 rotations; Locking nut 35 by thread bush on adjusting screw rod 31, and with cover plate 33 locking, prevent that adjusting screw rod 31 is loosening.Cover plate 33 is connected with bottom 36 with valve body 20 respectively with the 5th bolt and nut 34 by the 4th bolt and nut 32.
Drive valve: referring to accompanying drawing, counterclockwise rotate handwheel 1, driving Stem Mut 4 by parallel key 5 rotates, because Stem Mut 4 is limited in the support 13 by first plane bearing 9 and second plane bearing 91, under the effect of bearing gland 7, can not move up and down, this moment, guide finger 10 was in the straight trough part of guiding groove 12, therefore, rotation hand wheel 1 promptly drives upper valve rod 3 and rises, promptly drive spool dunnage 24 upwards by connecting rod 22, move to deviating from sealing surface, the sealing surface that makes the sealing surface of spool 26 and valve body 20 is recessed rapidly backward with approximate stop valve opening ways; Be rotated further handwheel 1, guide finger 10 enters the spiral part of guiding groove 12 on the upper valve rod 3, and spool dunnage 24 track along guiding groove 12 when rising drives spool 26 rising and half-twists, valve complete opening.
Close valve: referring to accompanying drawing, clockwise direction rotates handwheel 1, driving Stem Mut 4 by parallel key 5 rotates, this moment, guide finger 10 was in the spiral part of guiding groove 12, rotating handwheel 1 moves down upper valve rod, be subjected to guide finger 10 restrictions and must move through connecting rod 22 drive spool dunnages 24 decline and half-twists along the helical trajectory of guiding groove 12, guide finger 10 is got back to the straight trough part of guiding groove 12 on the upper valve rod 3, being rotated further handwheel 1 descends upper valve rod 3, it is downward to force connecting rod 22 to push down spool dunnage 24, to drawing close the sealing surface motion, make the sealing surface of spool 26 and the sealing surface of valve body 20 close the rapid pressing of mode with approximate stop valve, valve is closed fully.
Assembling is adjusted: referring to accompanying drawing, because the influence of component machining error, during assembling, spool 26 sealing surfaces may be misfitted in Vertical direction with valve body 20 sealing surfaces; At this moment, thereby can rotate the height that adjusting screw rod 31 is adjusted lower valve rod 28 with the spanner side of clamping tenon 37, and then adjust the height of spool dunnage 24, both adjust the height of spool 26, the sealing surface of its sealing surface and valve body 20 is fitted like a glove, reach the leakage test requirement; Because spool 26 shanks insert in the spool dunnage 24, the spherical step of handle realizes that with the taper hole on the spool dunnage 24 spherical pair contacts, the helical thread portion of handle is with and cap 25, by and the free gap of cap 25 adjustable valve cores 26, adjust after the appropriate gap and cap 25 has locking processing, spool 26 can pass the also cap 25 that is with on the handle of spool dunnage 24 by adjusting and adjust self-align gap, contact by the spherical pair of spool 26 with spool dunnage 24, but make spool 26 free floatings, have and look for middle ability automatically.
Adopt the hard-sealing zero-abrasion peeling valve of technique scheme, because the sealing surface of spool and the sealing surface of valve body adopt hard sealing, the sealing surface motion conditions is to break away from rotation more earlier, thereby it is low to have overcome intensity, defectives such as easy to wear, non-refractory, make this valve reach the intensity height, wear-resistant, high temperature resistant, low moment of torsion can satisfy the usage requirement of high temperature and high pressure condition.This valve can design soft sealing structure as required based on hard seal form.
Claims (3)
1, a kind of hard-sealing zero-abrasion peeling valve, comprise valve body, spool, valve gap and support, be installed in upper valve rod and the lower valve rod that is installed in the valve body bottom on valve gap and the support, it is characterized in that: the bevel sealing surface of the spherical sealing surface of described spool (26) and described valve body (20) adopts hard sealing, described upper valve rod (3) is provided with guiding groove (12), be fixed with guide finger (10) on the support (13), described guide finger (10) one ends insert and force the orbiting motion of described upper valve rod (3) along described guiding groove (12) in the described guiding groove (12); One end of the lower end of described upper valve rod (3) and connecting rod (22) is hinged, and the other end of described connecting rod (22) and spool dunnage (24) are hinged; Described spool (26) shank inserts in the spool dunnage (24), the spherical step of described spool (26) shank realizes that with the taper hole on the described spool dunnage (24) spherical pair contacts, and the helical thread portion of described spool (26) shank is with and cap (25); Described spool dunnage (24) lower end and lower valve rod (28) one ends are hinged, and described lower valve rod (28) is located in the bottom axis hole of described valve body (20) with described upper valve rod (3) coaxial line and the other end.
2, hard-sealing zero-abrasion peeling valve according to claim 1, it is characterized in that: described lower valve rod (28) is connected with adjusting screw rod (31) with gland nut (30) by divided ring (29), described adjusting screw rod (31) is connected and its side of being provided with, lower end tenon (37) with tapped hole on the cover plate (33) by the screw thread at its middle part, locking nut (35), and is locked with described cover plate (33) on described adjusting screw rod (31) by thread bush; Described cover plate (33) is connected with described valve body (20) by the 4th bolt and nut (32).
3, hard-sealing zero-abrasion peeling valve according to claim 2 is characterized in that: bottom (36) covers described adjusting screw rod (31) and is connected with described cover plate (33) by the 5th bolt and nut (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100359300A CN100507325C (en) | 2007-10-18 | 2007-10-18 | Hard-sealing zero-abrasion peeling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100359300A CN100507325C (en) | 2007-10-18 | 2007-10-18 | Hard-sealing zero-abrasion peeling valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162054A CN101162054A (en) | 2008-04-16 |
| CN100507325C true CN100507325C (en) | 2009-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100359300A Expired - Fee Related CN100507325C (en) | 2007-10-18 | 2007-10-18 | Hard-sealing zero-abrasion peeling valve |
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| CN (1) | CN100507325C (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2084296A (en) * | 1980-09-19 | 1982-04-07 | Adams Gebrueder Gmbh & Co Kg A | Improvements relating to flap valves |
| DE3628160A1 (en) * | 1986-08-20 | 1988-02-25 | Vetec Ventiltechnik Gmbh | Regulating member |
| CN2630589Y (en) * | 2003-05-23 | 2004-08-04 | 厦门三高维多利阀门有限公司 | Ball valve with long service life |
| CN2639632Y (en) * | 2003-05-26 | 2004-09-08 | 伯特利阀门集团有限公司 | Spherical double-flashboard ball valve |
| CN2651539Y (en) * | 2003-09-19 | 2004-10-27 | 厦门三高维多利阀门有限公司 | Rolling ball valves |
| CN101038038A (en) * | 2007-04-20 | 2007-09-19 | 张长宗 | Hard sealing ball valve |
| CN201083273Y (en) * | 2007-10-18 | 2008-07-09 | 湖南泵阀制造有限公司 | Hard-sealing non-abrasion rotary cutting valve |
-
2007
- 2007-10-18 CN CNB2007100359300A patent/CN100507325C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2084296A (en) * | 1980-09-19 | 1982-04-07 | Adams Gebrueder Gmbh & Co Kg A | Improvements relating to flap valves |
| DE3628160A1 (en) * | 1986-08-20 | 1988-02-25 | Vetec Ventiltechnik Gmbh | Regulating member |
| CN2630589Y (en) * | 2003-05-23 | 2004-08-04 | 厦门三高维多利阀门有限公司 | Ball valve with long service life |
| CN2639632Y (en) * | 2003-05-26 | 2004-09-08 | 伯特利阀门集团有限公司 | Spherical double-flashboard ball valve |
| CN2651539Y (en) * | 2003-09-19 | 2004-10-27 | 厦门三高维多利阀门有限公司 | Rolling ball valves |
| CN101038038A (en) * | 2007-04-20 | 2007-09-19 | 张长宗 | Hard sealing ball valve |
| CN201083273Y (en) * | 2007-10-18 | 2008-07-09 | 湖南泵阀制造有限公司 | Hard-sealing non-abrasion rotary cutting valve |
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| Publication number | Publication date |
|---|---|
| CN101162054A (en) | 2008-04-16 |
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Granted publication date: 20090701 Termination date: 20171018 |