CN204164402U - A kind of high-temperature stream control valve - Google Patents
A kind of high-temperature stream control valve Download PDFInfo
- Publication number
- CN204164402U CN204164402U CN201420587422.9U CN201420587422U CN204164402U CN 204164402 U CN204164402 U CN 204164402U CN 201420587422 U CN201420587422 U CN 201420587422U CN 204164402 U CN204164402 U CN 204164402U
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- CN
- China
- Prior art keywords
- spool
- potentiometer
- coupling shaft
- type circle
- valve body
- 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
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Abstract
A kind of high-temperature stream control valve, adopt rotary plunger type structure, spool and valve body to be rectangular opening, rotary plunger makes the opening and closing at a certain angle of spool bore and valve seat orifice, reach the object of accurate flow control, valve seat and spool adopt the Cuprum alloy manufacture that expansion coefficient is little, adopt Optimum clearance, in order to valve core rotation is flexible, avoid incrustation scale to affect to rotate, in valve body both sides, oilhole is set to spool gap, the lubricant oil of 1.5-2Mpa pressure is produced by oil pump, be interrupted and carry out pressure drop lubrication, the gap of spool and valve body is made to have the existence of lubricant film all the time, the incrustation scale that high temperature produces should not be formed, so spool all the time can flexible rotating, and good sealing can be kept, owing to adopting stepper motor reducing gear, potentiometer detects spool angle, can according to setting precise controlling spool angle, drop pressure lubrication spool is interrupted owing to adopting, at 0.6Mpa pressure, under the steam of less than 180 DEG C or the operating mode of liquid, valve core rotation is flexible, less scaling can Long-Time Service.
Description
Technical field
The utility model relates to high-temp liquid and steam flow control technique field, especially relates to a kind of high-temperature stream control valve.
Background technique
Current steam and high-temp liquid control valve; Bulky, complex structure, can not precisely to control, and it is easily stuck by incrustation scale, the internally piloted valve that the major part of present use is butterfly valve form, the phenomenon using a period of time, be easily not closed completely, the utility model adopts rotary plunger type structure, spool and valve body to be rectangle hole, and rotary plunger makes spool bore and valve seat orifice, at a certain angle opening and closing; Reach the object of accurate flow control, the aperture size of spool and closedown, to be driven by reducing gear by stepper motor, the aperture size of spool and shutdown signal are detected by the potentiometer coaxial with spool, are fed back to control system, through control system computing, precision control valve core aperture, reach the object of accurate flow control.
Summary of the invention
The purpose of this utility model is, for current steam and high-temp liquid control valve; Bulky, complex structure, can not precisely to control, and easily stuck by incrustation scale, the deficiency such as be not closed completely, and a kind of high-temperature stream control valve provided.
The utility model solves the technological scheme that its technical problem adopts, adopt rotary plunger type structure, spool and valve body are rectangular opening, and rotary plunger makes the opening and closing at a certain angle of spool bore and valve seat orifice, reach the object of accurate flow control, valve seat and spool adopt the Cuprum alloy manufacture that expansion coefficient is little, adopt Optimum clearance, in order to valve core rotation is flexible, avoid producing incrustation scale impact to rotate, in valve body both sides, oilhole is set to spool gap, produced the lubricant oil of 1.5-2Mpa pressure by oil pump, be interrupted and carry out pressure drop lubrication, make the gap of spool and valve body have the existence of lubricant film all the time, the incrustation scale that high temperature produces should not be formed, so spool all the time can flexible rotating, and can keep good sealing, and spool upper end has for connecting the groove driving coupling shaft, coupling shaft two ends are driven to be processed into convex joint, bottom is connected collet with spool groove fit top, be connected with the stepper motor of band reducing gear, drive coupling shaft to be fixed by top cover labyrinth, arrange the O type circle for sealing between driving coupling shaft and top cover labyrinth hole, spool lower end has for connecting the groove detecting potentiometer coupling shaft, convex joint is processed at potentiometer coupling shaft two ends, top is connected collet with spool groove fit bottom, be connected with detection potentiometer, potentiometer coupling shaft is fixed by lower sealing cover, O type circle for sealing is set between potentiometer coupling shaft and lower seal cap bore, at valve seat entrance end, connect input respectively, out splice going splice, is sealed, during use by O type circle between turnover joint and valve seat, start energising, control system control step motor decelerating mechanism drive Spool rotating, preset mechanical zero, with position potentiometer now for spool detection angles zero-bit, during work according to setting requirement, control system accurate Calculation spool open angle, control flow at claimed range, when pressure change, control system can self regulating valve core angle, accurate flow control is at setting range.
The aperture size of spool and closedown, to be driven by reducing gear by stepper motor, the aperture size of spool and shutdown signal are detected by the potentiometer coaxial with spool, are fed back to control system, through control system computing, precision control valve core aperture, reach the object of accurate flow control.
The beneficial effects of the utility model are: detect spool angle owing to adopting stepper motor reducing gear, potentiometer, can according to setting precise controlling spool angle, be interrupted drop pressure lubrication spool owing to adopting, under the operating mode of 0.6Mpa pressure, the steam of less than 180 DEG C or liquid, valve core rotation flexibly, less scaling can Long-Time Service.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing 1 is sectional structure chart of the present utility model.
Accompanying drawing 2 is input adapter views of the present utility model.
Accompanying drawing 3 is valve seat spool top plan of the present utility model.
Accompanying drawing 4 is driving coupling shaft figure of the present utility model.
Accompanying drawing 5 is driving coupling shaft end view drawings of the present utility model.
In figure: 1. valve body, 2. spool, 3. input adapter, 4. out splice going splice, 5. top cover labyrinth, 6. lower sealing cover, 7. input interface O type circle, 8. output interface O type circle, 9. top cover labyrinth O type circle, 10. lower sealing cover O type circle, 11. drive coupling shaft O type circle, 12. potentiometer live axle O type circle O type circles, 13 decelerating step motor, 14. reducing motor coupling shafts, 15. angles detect potentiometer, 16. potentiometer coupling shafts, 17. potentiometer guard shields, 18. reducing motor guard shields, 19. retaining screws, 20. spool bore, 21. live axle collets, 22. potentiometer shaft collets, 23. valve body square holes, 24. spool lubricant pipes, 25. live axle connection flat square holes, 26.O type circle groove, 27. coupling shaft plush coppers, 28. potentiometer lead-in wires, 29. stepper motor lead-in wires.
Embodiment spool bore (20), valve body square hole (23), live axle connection flat square hole (25), O type circle groove (26) potentiometer go between (28), stepper motor goes between (29),
The present invention includes in accompanying drawing: valve body (1), spool (2), input adapter (3), out splice going splice (4), top cover labyrinth (5), lower sealing cover (6), input interface O type circle (7), output interface O type circle (8), top cover labyrinth O type circle (9), lower sealing cover O type circle (10), drive coupling shaft O type circle (11), potentiometer live axle O type circle (12), decelerating step motor (13), reducing motor coupling shaft (14), angle detects potentiometer (15), potentiometer coupling shaft (16), potentiometer guard shield (17), reducing motor guard shield (18) retaining screw (19), live axle collet (21), potentiometer shaft collet (22), being interconnected between spool lubricant pipe (24) formed, wherein valve body (1), spool (2), the Cuprum alloy manufacture little by thermal expansion coefficient, valve body (1) endoporus, spool (2) cylindrical optimizes matching gap, in valve body (1) both sides, the oil filler pipe leading to spool (2) gap is set, during work, the lubricant oil of 1.5-2Mpa pressure is provided by oil pump, be interrupted and carry out drip feed lubrication, effectively prevent the generation of incrustation scale, flexible rotation is reliable all the time to make spool, input adapter (3), out splice going splice (4), manufactured by brass, circumferential groove is had at junction plane, place input interface O type circle (7), output interface O type circle (8), by retaining screw (19) and valve body (1) fixed position one, top cover labyrinth (5), fixed by top cover labyrinth O type circle (9) retaining screw (19) and valve body (1), decelerating step motor (13), be connected with reducing motor coupling shaft (14) by live axle collet (21), reducing motor coupling shaft (14) is connected with the live axle connection flat square hole (25) of spool (2) by the hole of top cover labyrinth (5), reducing motor coupling shaft (14) seals with the hole of top cover labyrinth (5) by driving coupling shaft O type circle (11), lower sealing cover (6), lower sealing cover O type circle (10) retaining screw (19) and valve body (1) are fixed, angle detects potentiometer (15), be connected with potentiometer coupling shaft (16) by potentiometer shaft collet (22), potentiometer coupling shaft (16) is connected with the flat square hole in bottom of spool (2) by the hole of lower sealing cover (6), potentiometer coupling shaft (16) is sealed by potentiometer live axle O type circle (12) and the hole of lower sealing cover (6).
The utility model is applicable to steam and the liquid of less than 180 DEG C, during flow control valve work; Start energising, control system self-inspection, decelerating step motor (13) band movable valve plug (2) and angle detect potentiometer (15) synchronous rotary, spool bore (20), valve body square hole (23) aligns, and all-pass is machine origin, angle detection potentiometer (15) Setting signal is zero degree, spool (2) rotates 60 degree for closing, and control system is with setting data; Carry out flow proportional control according to Spool rotating angular dimension, keep output flow to meet the requirements, when by the change of the pressure of flow control valve time, control system detects changes in flow rate signal; Control system controls decelerating step motor (13) rotations, spool (2) Angulation changes, angle detect potentiometer (15) feedback spool (2) rotary angle signal, the stablizing of control system accurate Calculation spool (2) angle of swing, accurately guaranteed flow.
Claims (6)
1. a high-temperature stream control valve, is characterized in that, by valve body (1), spool (2), input adapter (3), out splice going splice (4), top cover labyrinth (5), lower sealing cover (6), input interface O type circle (7), output interface O type circle (8), top cover labyrinth O type circle (9), lower sealing cover O type circle (10), drive coupling shaft O type circle (11), potentiometer live axle O type circle (12), decelerating step motor (13), reducing motor coupling shaft (14), angle detects potentiometer (15), potentiometer coupling shaft (16), potentiometer guard shield (17), reducing motor guard shield (18) retaining screw (19), live axle collet (21), potentiometer shaft collet (22), being interconnected between spool lubricant pipe (24) formed.
2. a kind of high-temperature stream control valve according to claim 1, is characterized in that; Wherein valve body (1), spool (2), optimize matching gap by the little Cuprum alloy manufacture of thermal expansion coefficient, valve body (1) endoporus, spool (2) cylindrical.
3. a kind of high-temperature stream control valve according to claim 1, is further characterized in that; In valve body (1) both sides, the oil filler pipe leading to spool (2) gap is set, provides the lubricant oil of 1.5-2Mpa pressure by oil pump, be interrupted and carry out drip feed lubrication.
4. a kind of high-temperature stream control valve according to claim 1, is further characterized in that; Input adapter (3), out splice going splice (4), by brass manufacture, have circumferential groove at junction plane.
5. a kind of high-temperature stream control valve according to claim 1, is further characterized in that; Decelerating step motor (13), to be connected with reducing motor coupling shaft (14) by live axle collet (21), reducing motor coupling shaft (14) is connected with the live axle connection flat square hole (25) of spool (2) by the hole of top cover labyrinth (5), and reducing motor coupling shaft (14) seals with the hole of top cover labyrinth (5) by driving coupling shaft O type circle (11).
6. a kind of high-temperature stream control valve according to claim 1, is further characterized in that; Lower sealing cover (6), lower sealing cover O type circle (10) retaining screw (19) and valve body (1) are fixed, angle is detected potentiometer (15), is connected with potentiometer coupling shaft (16) by potentiometer shaft collet (22), potentiometer coupling shaft (16) is connected with the flat square hole in bottom of spool (2) by the hole of lower sealing cover (6), and potentiometer coupling shaft (16) is sealed by potentiometer live axle O type circle (12) and the hole of lower sealing cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587422.9U CN204164402U (en) | 2014-10-08 | 2014-10-08 | A kind of high-temperature stream control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587422.9U CN204164402U (en) | 2014-10-08 | 2014-10-08 | A kind of high-temperature stream control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164402U true CN204164402U (en) | 2015-02-18 |
Family
ID=52538090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420587422.9U Expired - Fee Related CN204164402U (en) | 2014-10-08 | 2014-10-08 | A kind of high-temperature stream control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167496A (en) * | 2017-12-30 | 2018-06-15 | 华帝股份有限公司 | A kind of gas kitchen ranges plug valve |
-
2014
- 2014-10-08 CN CN201420587422.9U patent/CN204164402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167496A (en) * | 2017-12-30 | 2018-06-15 | 华帝股份有限公司 | A kind of gas kitchen ranges plug 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20161008 |