CN103104720B - A kind of down-hole is from spacing motor-operated control valve - Google Patents
A kind of down-hole is from spacing motor-operated control valve Download PDFInfo
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- CN103104720B CN103104720B CN201310022810.2A CN201310022810A CN103104720B CN 103104720 B CN103104720 B CN 103104720B CN 201310022810 A CN201310022810 A CN 201310022810A CN 103104720 B CN103104720 B CN 103104720B
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Abstract
The invention discloses a kind of down-hole from spacing motor-operated control valve, this down-hole has adopted mechanical stopping means from spacing motor-operated control valve, in the time that spool (16) rotates to the first extreme position, through hole (161) is communicated with the first output channel (31), in the time that spool (16) rotates to the second extreme position, through hole (161) is communicated with the second output channel (32). By the rotational angle of accurate control spool, thereby make the hydraulic oil in input channel enter accurately the first output channel or enter the second output channel, this down-hole is simple in structure, stable and reliable for performance from spacing motor-operated control valve device, long service life.
Description
Technical field
The present invention relates to technical field of petroleum extraction, particularly a kind of down-hole using in down-hole is from spacing motor-operated control valve.
Background technology
At present, high-pressure and hydraulic reversal valve both domestic and external is general adopts manually and two kinds of forms of Electromagnetic Control. Due to space, down-holeLimited, and the impact of high pressure wet environment, existing hydraulicdirectional control valve is not suitable in down-hole application. In order to overcome this defect,Chinese patent CN1598330A, on March 23 2005 publication date, discloses a kind of " electirc controlling hydraulic reversing valve ",This electirc controlling hydraulic reversing valve adopts motor to drive, and motor can drive valve plate rotation, and signal transducer can detect flowThe rotational angle of dish, can make an input oil circuit optionally defeated with certain by the rotational angle of accurate control valve plateVent line is communicated with. But this electirc controlling hydraulic reversing valve also there will be following defect while use in down-hole: electronic sensor costHeight uses in the environment of down-hole high pressure humidity, during especially as the hydraulicdirectional control valve of automatically controlled fracturing sliding bush, takiesSpace is large, and service life is short, poor reliability, and the defect such as easily break down.
Summary of the invention
In order to solve the technical problem that uses sensor control hydraulic pressure commutation poor reliability in prior art in down-hole, the present inventionProvide a kind of down-hole from spacing motor-operated control valve device, this down-hole has adopted mechanical spacing dress from spacing motor-operated control valvePut the precisely commutation of turned position realization that not only can control accurately spool, and simple in structure, stable and reliable for performance,Long service life.
The present invention is that the technical scheme that solves its technical problem employing is: a kind of down-hole, from spacing motor-operated control valve, comprises valveBody and the valve pocket that is arranged at valve body inner sealing, reducing motor is fixedly connected with one end of valve pocket, the other end of valve seat and valve pocketBe fixedly connected with, in valve pocket, one end of output shaft is fixedly connected with the motor shaft of reducing motor, the other end of output shaft withOne end of columned spool is fixedly connected with, and the other end of spool is connected with one end rotary seal of valve seat, and spool is interior along defeatedA through hole that is axially provided with connection spool two ends of shaft, is communicated with valve seat two along being axially provided with of output shaft in valve seatThe first output channel and second output channel of end, be provided with the input channel being communicated with through hole, spool in the sidewall of valve bodySurface be connected with the mechanical limiting location device of restriction spool rotational angle, when Spool rotating is during to the first extreme position, logicalHole is communicated with the first output channel, and when Spool rotating is during to the second extreme position, through hole is communicated with the second output channel.
Reducing motor can be with movable valve plug counterclockwise or turn clockwise, when making hydraulic oil in input channel enter theWhen one output channel, reducing motor band movable valve plug is rotated counterclockwise, and mechanical stopping means can limit the rotation of spoolAngle makes spool just in time turn to the first extreme position, and now the other end of through hole is communicated with the first output channel, hydraulic oilJust can only enter the first output channel; In the time need to making hydraulic oil in input channel enter the second output channel, electricity slows downMachine band movable valve plug turns clockwise, and the anglec of rotation that mechanical stopping means can limit spool just in time turns to spoolThe second extreme position, now the other end of through hole is communicated with the second output channel, and it is logical that hydraulic oil just can only enter the second outputRoad.
Preferably spool is connected with the inwall rotary seal of valve body, and stopping means comprises the first spacer pin being fixedly connected with valve seatWith the second spacer pin, one end that spool contacts with valve seat is provided with arc groove, and the first spacer pin and the second spacer pin are establishedBe placed in arc groove, in the time of the butt of one end of the first spacer pin and arc groove, Spool rotating is to the first extreme position,In the time of the other end butt of the second spacer pin and arc groove, Spool rotating is to the second extreme position.
Preferably spool is connected with the inwall rotary seal of valve body, and stopping means comprises the first spacer pin being fixedly connected with spoolWith the second spacer pin, one end that valve seat contacts with spool is provided with arc groove, and the first spacer pin and the second spacer pin are establishedBe placed in arc groove, in the time of the butt of one end of the first spacer pin and arc groove, Spool rotating is to the first extreme position,In the time of the other end butt of the second spacer pin and arc groove, Spool rotating is to the second extreme position.
Preferably one end of output shaft is connected with the inwall of valve body with bearing block by bearing.
Preferably one end of output shaft is provided with wide diameter portion, and between wide diameter portion and spool, output shaft is socketed with cylinder outward successivelyThe seal receptacle of shape, circular gland and spring, seal receptacle cylindraceous and wide diameter portion butt, and seal receptacle simultaneously withInwall and the output shaft of valve body are tightly connected, gland and seal receptacle butt, the two ends of spring respectively with gland and spool butt.
Preferably the sidewall of valve body is provided with the joint for being connected with fueller, and one end of input channel is communicated with joint,The other end of input channel is arranged on the valve interior wall between gland and spool, and input channel is by between gland and spoolValve pocket be communicated with through hole.
Preferably between seal receptacle and the inwall of valve body, be provided with sealing ring, between seal receptacle and output shaft, be provided with sealing ring.
Preferably the madial wall of seal receptacle and the adjacent one end of gland is provided with first ring connected in star, the adjacent one end of seal receptacle and glandLateral wall be provided with the second annular groove, between first ring connected in star and the second annular groove, form annular projection, glandInward flange be provided with the first annular flange flange, the outward flange of gland is provided with the second annular flange flange, the first annular flange flange andBetween second ring flange, form the 3rd annular groove, the first annular flange flange is plugged in first ring connected in star and and first ringSealing ring butt in connected in star, the second annular flange flange be plugged in the second annular groove and with the second annular groove inSealing ring butt, annular projection is plugged in the 3rd annular groove.
Preferably valve seat is arranged in valve body, between valve seat and valve body, is provided with sealing ring.
The invention has the beneficial effects as follows: this down-hole has adopted mechanical stopping means from spacing motor-operated control valve, by essenceThe rotational angle of true control spool, makes the hydraulic oil in input channel enter accurately the first output channel or enter secondOutput channel, this down-hole is simple in structure from spacing motor-operated control valve device, and difficult leakage is stable and reliable for performance, usesLife-span is long.
Brief description of the drawings
Below in conjunction with accompanying drawing, down-hole of the present invention is described in further detail from spacing motor-operated control valve.
Fig. 1 is the structural representation of down-hole of the present invention from spacing motor-operated control valve.
Fig. 2 is the cutaway view of AA direction in Fig. 1.
Fig. 3 is the cutaway view of BB direction in Fig. 1.
Fig. 4 is the decomposing schematic representation of seal receptacle, sealing ring and gland.
Wherein 1. joints, 11. input channels, 3. valve seat, 31. first output channels, 32. second output channels,4. reducing motor, 5. spring, 6. bearing block, 7. output shaft, 71. wide diameter portions, 8. seal receptacle, 81. first ringsConnected in star, 82. second annular grooves, 83. annular projections, 9. valve body, 10. gland, 101. first sleeves, 102.The second sleeve, 103. the 3rd annular grooves, 12. sealing rings, 16. spools, 161. through holes, 17. valve pockets, 18. limitsPosition device, 181. arc grooves, 182. first spacer pins, 183. second spacer pins.
Detailed description of the invention
Below in conjunction with accompanying drawing, down-hole of the present invention is elaborated from spacing motor-operated control valve. A kind of down-hole is from limitPosition motor-operated control valve, comprises valve body 9 and the valve pocket 17 that is arranged at valve body inner sealing, and reducing motor 4 is solid with one end of valve pocketFixed connection, valve seat 3 is fixedly connected with the other end of valve pocket, in valve pocket, one end of output shaft 7 and reducing motor 4Motor shaft is fixedly connected with, and the other end of output shaft 7 is fixedly connected with one end of columned spool 16, spool 16 anotherOne end is connected with one end rotary seal of valve seat 3, and spool 16 is interior is communicated with spool two ends along being axially provided with of output shaft 7A through hole 161, interior the first output channel 31 and that is communicated with valve seat two ends along being axially provided with of output shaft 7 of valve seat 3Two output channels 32, are provided with the input channel 11 being communicated with through hole 161, the surface of spool 16 in the sidewall of valve body 9Be connected with the mechanical limiting location device 18 of restriction spool rotational angle, in the time that spool 16 rotates to the first extreme position, through hole161 are communicated with the first output channel 31, and in the time that spool 16 rotates to the second extreme position, through hole 161 and the second output are logicalRoad 32 is communicated with, as shown in Figure 1, Figure 2, Figure 3 shows.
Reducing motor 4 can be with movable valve plug 16 counterclockwise or turn clockwise, when the hydraulic pressure that need to make in input channel 11When oil enters the first output channel 31, reducing motor 4 is with movable valve plug 16 to be rotated counterclockwise, mechanical stopping means 18The anglec of rotation that can limit spool 16 makes spool 16 just in time turn to the first extreme position, now another of through hole 161End is communicated with the first output channel 31, and hydraulic oil just can only enter the first output channel 31; When needs make input channel 11When interior hydraulic oil enters the second output channel 32, reducing motor 4 is with movable valve plug 16 to turn clockwise, mechanical limitThe anglec of rotation that position device 18 can limit spool 16 makes spool 16 just in time turn to the second extreme position, now through hole 161The other end be communicated with the second output channel 32, hydraulic oil just can only enter the second output channel 32.
Spool 16 is connected with the inwall rotary seal of valve body 9, and this stopping means can adopt spacer pin and arc groove slidewayThe mode matching, specifically stopping means 18 comprises the arc groove 181 that is arranged at spool 16 other ends, arc grooveInside be provided with the first spacer pin 182 and the second spacer pin 183 that are fixedly connected with one end of valve seat 3, design accurately arcThe position of groove 181, the first spacer pin 182, the second spacer pin 183 and through hole 161, makes to revolve counterclockwise when spool 16While forwarding the first extreme position to, one end butt of the first spacer pin 182 and arc groove 181, the electric current of reducing motor 4Increase, prove to reach the limit of position, realize from spacing; In the time that spool 16 is rotated clockwise to the second extreme position,The other end butt of the second spacer pin 183 and arc groove 181, the electric current of reducing motor 4 increases, and proves to arriveExtreme position, realizes from spacing. Spacer pin is simple with the limit device structure that arc groove slideway matches, dependable performance,Do not need extra energy, be particularly suitable for using in the especially automatically controlled fracturing sliding bush in down-hole, as shown in Figure 2 and Figure 3.
Or this stopping means can also be another kind of form, specifically stopping means 18 comprises and is arranged at one of valve seat 3The arc groove 181 of end, is provided with the first spacer pin 182 of being fixedly connected with spool 16 other ends and the in arc grooveTwo spacer pins 183, in the time that spool 16 rotates to primary importance, the first spacer pin 182 supports with one end of arc groove 181Connect, in the time that spool 16 rotates to the second place, the other end butt of the second spacer pin 183 and arc groove 181.
Or this stopping means can also be another kind of form, specifically stopping means 18 comprises and being arranged at outside spool 16The arc groove 181 that wall is circumferential, is provided with the first spacer pin 182 being fixedly connected with the inwall of valve body 9 in arc grooveWith the second spacer pin 183, design accurately arc groove 181, the first spacer pin 182, the second spacer pin 183 and through hole161 position, makes in the time that spool 16 is rotated counterclockwise the first extreme position, the first spacer pin 182 and arc groove 181One end butt, the electric current of reducing motor 4 increases, and proves to reach the limit of position, realization is from spacing; When spool 16While being rotated clockwise to the second extreme position, the other end butt of the second spacer pin 183 and arc groove 181, electricity slows downThe electric current of machine 4 increases, and proves to reach the limit of position, realizes from spacing.
Or this stopping means can also be another kind of form, specifically stopping means 18 comprises and is arranged at valve interior wall weekTo arc groove 181, in arc groove, be provided with the first spacer pin 182 and second being fixedly connected with spool outer wall spacingPin 183, in the time that spool 16 rotates to primary importance, one end butt of the first spacer pin 182 and arc groove 181, whenWhen spool 16 rotates to the second place, the other end butt of the second spacer pin 183 and arc groove 181.
For capable of reducing friction resistance, one end of output shaft 7 is connected with the inwall of valve body 9 with bearing block 6 by bearing.
In for fear of hydraulic oil to valve pocket, reducing motor one side is leaked, and the first output channel 31 and the second output channel32 between spool 16 and valve seat 3 mutual seepage. One end of output shaft 7 is provided with wide diameter portion 71, wide diameter portion 71 HesBetween spool 16, output shaft 7 is outer is socketed with seal receptacle 8 cylindraceous, circular gland 10 and spring 5, circle successivelySeal receptacle 8 and wide diameter portion 71 butts of tubular, and seal receptacle 8 connects with inwall and output shaft 7 sealings of valve body 9 simultaneouslyConnect, gland 10 and seal receptacle 8 butts, the two ends of spring 5 respectively with gland 10 and spool 16 butts. Spring compression valveCore 16 and seal receptacle 8, be not only conducive to the circumferential seal of seal receptacle 8, can also remove between spool 16 and valve seat 3Gap, makes hydraulic oil be merely able to enter the first output channel 31 or the second output channel 32 from input channel 11, improves liquidPress commutation efficiency.
The sidewall of valve body 9 is provided with the joint 1 for being connected with fueller, and one end of input channel 11 and joint 1 connectLogical, the other end of input channel 11 is arranged on the valve interior wall between gland 10 and spool 16, and input channel 11 is logicalValve pocket between overpressure cap 10 and spool 16 is communicated with through hole 161. Joint 1 is connected with hydraulic oil feeding mechanism, hydraulic pressureOil feeding mechanism provides hydraulic oil by joint in input channel 11, and hydraulic oil is introduced into gland 10 from input channel 11And valve pocket between spool 16, then at the through hole 161 entering again in spool, hydraulic oil can also be lubricated to spool.
In order further to ensure the sealing effectiveness of seal receptacle 8, avoid hydraulic oil to leak to reducing motor one side in valve pocket, closeBetween envelope seat 8 and the inwall of valve body 9, be provided with sealing ring 12, between seal receptacle 8 and output shaft 7, be provided with sealing ring 12.In order further to strengthen the sealing effectiveness of seal receptacle 8, seal receptacle 8 is provided with first with the madial wall of gland 10 adjacent one endAnnular groove 81, seal receptacle 8 is provided with the second annular groove 82, the first annulars with the lateral wall of gland 10 adjacent one endBetween groove 81 and the second annular groove 82, form annular projection 83, the inward flange of gland 10 is provided with the first annular flange flange101, the outward flange of gland 10 is provided with the second annular flange flange 102, the first annular flange flange 101 and the second annular flange flange 102Between form the 3rd annular groove 103, the first annular flange flange 101 and be plugged in first ring connected in star 81 and and first ringSealing ring 12 butts in connected in star 81, the second annular flange flange 102 is plugged in the second annular groove 82 and with secondSealing ring 12 butts in annular groove 82, annular projection 83 is plugged in the 3rd annular groove 103, like this sealing effectivenessBetter, as shown in Figure 4.
For fear of the impact in outer bound pair valve pocket, valve seat 3 is arranged in valve body 9, between valve seat 3 and valve body 9, arrangesThere is sealing ring 12.
This down-hole has adopted mechanical stopping means from spacing motor-operated control valve, by the angle of rotation of accurate control spoolDegree, makes the hydraulic oil in input channel enter accurately the first output channel or enter the second output channel, and this down-hole is from limitPosition motor-operated control valve device is simple in structure, stable and reliable for performance, long service life.
The above, be only specific embodiments of the invention, can not limit the scope that invention is implemented with it, so it is equal toThe displacement of assembly, or equivalent variations and the modification done according to scope of patent protection of the present invention, all should still belong to this patent and containCategory.
Claims (9)
1. down-hole, from a spacing motor-operated control valve, is characterized in that: comprise valve body (9) and be arranged at valve body inner sealingValve pocket (17), reducing motor (4) is fixedly connected with one end of valve pocket, the fixing company of the other end of valve seat (3) and valve pocketConnect, in valve pocket, one end of output shaft (7) is fixedly connected with the motor shaft of reducing motor (4), output shaft (7)The other end is fixedly connected with the one end of columned spool (16), one end of the other end of spool (16) and valve seat (3)Rotary seal connects, the interior through hole (161) that is axially provided with connection spool two ends along output shaft (7) of spool (16),Be communicated with first output channel (31) at valve seat two ends and second defeated along being axially provided with of output shaft (7) in valve seat (3)Go out passage (32), in the sidewall of valve body (9), be provided with the input channel (11) being communicated with through hole (161), spool (16)Surface be connected with the mechanical limiting location device (18) of restriction spool rotational angle, when spool (16) rotates to first limit, through hole (161) is communicated with the first output channel (31) when the position, in the time that spool (16) rotates to the second extreme position,Through hole (161) is communicated with the second output channel (32).
2. down-hole according to claim 1, from spacing motor-operated control valve, is characterized in that: spool (16) and valve body(9) inwall rotary seal connects, and stopping means (18) comprises the first spacer pin (182) being fixedly connected with valve seat (3)With the second spacer pin (183), one end that spool (16) contacts with valve seat (3) is provided with arc groove (181), theOne spacer pin (182) and the second spacer pin (183) are arranged in arc groove, when the first spacer pin (182) and arcWhen one end butt of groove (181), spool (16) rotates to the first extreme position, when the second spacer pin (183) withWhen the other end butt of arc groove (181), spool (16) rotates to the second extreme position.
3. down-hole according to claim 1, from spacing motor-operated control valve, is characterized in that: spool (16) and valve body(9) inwall rotary seal connects, and stopping means (18) comprises the first spacer pin (182) being fixedly connected with spool (16)With the second spacer pin (183), one end that valve seat (3) contacts with spool (16) is provided with arc groove (181), theOne spacer pin (182) and the second spacer pin (183) are arranged in arc groove, when the first spacer pin (182) and arcWhen one end butt of groove (181), spool (16) rotates to the first extreme position, when the second spacer pin (183) withWhen the other end butt of arc groove (181), spool (16) rotates to the second extreme position.
4. down-hole according to claim 1, from spacing motor-operated control valve, is characterized in that: one of output shaft (7)End is connected with the inwall of valve body (9) with bearing block (6) by bearing.
5. down-hole according to claim 1, from spacing motor-operated control valve, is characterized in that: one of output shaft (7)End is provided with wide diameter portion (71), and between wide diameter portion (71) and spool (16), output shaft (7) is outer to be socketed with successivelySeal receptacle cylindraceous (8), circular gland (10) and spring (5), seal receptacle cylindraceous (8) and wide diameter portion(71) butt, and seal receptacle (8) is tightly connected with inwall and the output shaft (7) of valve body (9) simultaneously, gland (10)With seal receptacle (8) butt, the two ends of spring (5) respectively with gland (10) and spool (16) butt.
6. down-hole according to claim 5, from spacing motor-operated control valve, is characterized in that: the sidewall of valve body (9)Be provided with the joint (1) for being connected with fueller, one end of input channel (11) is communicated with joint (1), inputThe other end of passage (11) is arranged on the valve interior wall between gland (10) and spool (16), input channel (11)Be communicated with through hole (161) by the valve pocket between gland (10) and spool (16).
7. down-hole according to claim 5, from spacing motor-operated control valve, is characterized in that: seal receptacle (8) and valveBetween the inwall of body (9), be provided with sealing ring (12), between seal receptacle (8) and output shaft (7), be provided with sealing ring(12)。
8. down-hole according to claim 7, from spacing motor-operated control valve, is characterized in that: seal receptacle (8) and pressureThe madial wall of lid (10) adjacent one end is provided with first ring connected in star (81), and seal receptacle (8) is adjacent with gland (10)The lateral wall of one end is provided with the second annular groove (82), first ring connected in star (81) and the second annular groove (82) itBetween form annular projection (83), the inward flange of gland (10) is provided with the first annular flange flange (101), gland (10)Outward flange is provided with the second annular flange flange (102), between the first annular flange flange (101) and the second annular flange flange (102)Form the 3rd annular groove (103), the first annular flange flange (101) is plugged in first ring connected in star (81) and with theSealing ring (12) butt in one annular groove (81), the second annular flange flange (102) is plugged in the second annular groove (82)In and with the second annular groove (82) in sealing ring (12) butt, annular projection (83) is plugged in the 3rd annularGroove (103).
9. down-hole according to claim 1, from spacing motor-operated control valve, is characterized in that: valve seat (3) is arranged atIn valve body (9), between valve seat (3) and valve body (9), be provided with sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310022810.2A CN103104720B (en) | 2013-01-22 | 2013-01-22 | A kind of down-hole is from spacing motor-operated control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310022810.2A CN103104720B (en) | 2013-01-22 | 2013-01-22 | A kind of down-hole is from spacing motor-operated control valve |
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| Publication Number | Publication Date |
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| CN103104720A CN103104720A (en) | 2013-05-15 |
| CN103104720B true CN103104720B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310022810.2A Active CN103104720B (en) | 2013-01-22 | 2013-01-22 | A kind of down-hole is from spacing motor-operated control valve |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930520A (en) * | 1974-06-27 | 1976-01-06 | Eugene Whitaker | Control valve |
| CN2535629Y (en) * | 2002-04-09 | 2003-02-12 | 许冠峰 | Electric four-way change valve |
| CN1598330A (en) * | 2004-09-08 | 2005-03-23 | 靳宗宝 | Electirc controlling hydraulic reversing valve |
| CN2921491Y (en) * | 2006-06-26 | 2007-07-11 | 上海康源电气有限公司 | Multipath output control valve |
| CN101608696A (en) * | 2009-06-30 | 2009-12-23 | 林波 | Rotary-vane multifunctional multi-purpose valve |
| CN203176440U (en) * | 2013-01-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Underground self-limiting electric control valve |
-
2013
- 2013-01-22 CN CN201310022810.2A patent/CN103104720B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930520A (en) * | 1974-06-27 | 1976-01-06 | Eugene Whitaker | Control valve |
| CN2535629Y (en) * | 2002-04-09 | 2003-02-12 | 许冠峰 | Electric four-way change valve |
| CN1598330A (en) * | 2004-09-08 | 2005-03-23 | 靳宗宝 | Electirc controlling hydraulic reversing valve |
| CN2921491Y (en) * | 2006-06-26 | 2007-07-11 | 上海康源电气有限公司 | Multipath output control valve |
| CN101608696A (en) * | 2009-06-30 | 2009-12-23 | 林波 | Rotary-vane multifunctional multi-purpose valve |
| CN203176440U (en) * | 2013-01-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Underground self-limiting electric control valve |
Non-Patent Citations (1)
| Title |
|---|
| 转阀及其在液压与气动系统中的应用研究;王晓等;《液压气动与密封》;20120731;第1-7页 * |
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| CN103104720A (en) | 2013-05-15 |
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