CN204176089U - The high-accuracy large flux control valve of a kind of electric control pilot operated - Google Patents
The high-accuracy large flux control valve of a kind of electric control pilot operated Download PDFInfo
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- CN204176089U CN204176089U CN201420603685.4U CN201420603685U CN204176089U CN 204176089 U CN204176089 U CN 204176089U CN 201420603685 U CN201420603685 U CN 201420603685U CN 204176089 U CN204176089 U CN 204176089U
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- connecting tube
- valve
- housing
- pilot operated
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- 230000004907 flux Effects 0.000 title claims abstract description 12
- 230000004044 response Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses the high-accuracy large flux control valve of a kind of electric control pilot operated, comprise the first connecting tube, the first connecting tube connects high-pressure high-flow valve, high-pressure high-flow valve comprises housing, first connecting tube connects the side of housing, and valve seat is installed in the interior survey bottom of housing, installs valve rod in valve seat.The optional set point signal source of electronic pressure controller of the present utility model, external analog signal 4 ~ 20mA or 1 ~ 5VDC; Feedback and error signal restriction able to programme.The high-accuracy large flux control valve of the electric control pilot operated that the utility model provides provides closed-loop feedback to control for system, possesses extraordinary precision and response time, can connect computer, carries out internet-based control.
Description
Technical field
The utility model relates to the high-accuracy large flux control valve of a kind of electric control pilot operated.
Background technique
With regard to the whole Development of Machine Industry situation of current China, the paces that valve industry development is advanced are very fast, but make a general survey of domestic whole valve industry, valve great majority are mid and low-end products, product technology content is low, high-end valve on Domestic market is all based on import, which results in China's high-end valve market by the phenomenon of external valve business monopoly.Therefore, the valve industry of China is badly in need of to intelligent, integrated high tip direction development.The domestic manufacturer that can produce high pressure valve that is known as has about 30 at present, but its product is hydraulic valve substantially, and air pressure valve is generally at below 15MPa; Military unit, direct-acting type gas pressure reducer maximum pressure also only has 35MPa, and flow, control accuracy all can not meet the usage requirement of present high pressure, highi degree of accuracy, large discharge upgrade-system.For high pressure 45MPa, the gas pressure reducer meeting flow value Cv=3.3 ~ 12 is substantially all purchase external high-pressure high-flow valve, and expensive, and maintenance cost is higher.
Model utility content
The technical problems to be solved in the utility model is the defect overcoming prior art, provides a kind of electric control pilot operated high-accuracy large flux control valve.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme: the high-accuracy large flux control valve of a kind of electric control pilot operated, comprise the first connecting tube, first connecting tube connects high-pressure high-flow valve, high-pressure high-flow valve comprises housing, first connecting tube connects the side of housing, valve seat is installed in the interior survey bottom of housing, in valve seat, valve rod is installed, between valve seat and valve rod, unloading cavity is set, the middle part of housing arranges sensing element, housing is positioned at below sensing element and guide rod is set, the interior location of housing arranges load air chamber above sensing element, the middle part of the first connecting tube connects one end of the second connecting tube, the other end of the second connecting tube connects the top of housing, second connecting tube communicates with load air chamber, the middle part of the second connecting tube arranges guide's high pressure regulator, guide's high pressure regulator comprises scale amplifying and loads room, the top that scale amplifying loads room connects electron pressure control gear, electron pressure control gear comprises electronic pressure controller, the side of electronic pressure controller arranges low-pressure gas source interface, the opposite side of electronic pressure controller arranges connection jaws.
In order to realize the purpose of this utility model further, can also by the following technical solutions: between described valve seat and valve rod, spring sealed circle is set.The middle part of described second connecting tube arranges pressure transducer, and pressure transducer is positioned at the second connecting tube distance nearlyer side of housing.
The beneficial effect that the utility model reaches is:
The optional set point signal source of electronic pressure controller of the present utility model, external analog signal 4 ~ 20mA or 1 ~ 5VDC; Feedback and error signal restriction able to programme.For system provides closed-loop feedback to control, possess extraordinary precision and response time, can computer be connected, carry out internet-based control.
Guide's high pressure regulator of the present utility model can carry out the decentralized control from vacuum to 6000PSI pressure range.When electronic pressure controller provides very little guide's bleed pressure, regulator can obtain very large outlet pressure, i.e. (2 ~ 125) of regulator outlet pressure=automatically controlled guide's bleed pressure doubly.And accurately control at a distance with the use of realizing with electronic pressure controller, control accuracy of outlet pressure is up to 0.1%.
High-pressure high-flow valve of the present utility model is due to the upper and lower area equation of sensing element, the pressure that Flow valve air chamber is introduced equals the outlet pressure of Flow valve, and better, control accuracy is high for its Flow characteristics and Pressure characteristics, increase orifice size, large discharge usage requirement can be realized.
High-pressure high-flow valve of the present utility model adopts discharging type air chamber loading structure, and the primary component of this structure is by load air chamber, sensing element, valve seat, valve rod and unloading cavity etc.
Being mainly used in of the utility model sensing element experiences outlet pressure and change thereof, thus drives and open and close the capable adjustment of valve rod.Sensing element adopts canvas filler rubber diaphragm, the features such as it has, and rigidity is little, highly sensitive, endurance, absorbing, quality are little, good airproof performance.Due to the upper and lower area equation of sensing element, the pressure that its air chamber is introduced equals the outlet pressure of Flow valve, and better, control accuracy is high, can reach 0.1% of outlet pressure for its valve export Flow characteristics and Pressure characteristics.
Guide's high pressure regulator Main Function of the present utility model changes orifice size to realize regulated variable---the adjustment of rate of discharge and pressure.Valve seat, valve rod adopt soft and hard conical surface sealing structure, according to different flow value (Cv=0.46 ~ 12) requirements, change the size of valve seat latus rectum, just can change the size of flow value Cv.
Its function of unloading cavity of the present utility model lays down a part of load, even if the load part on valve is offset from balancing each other, reducing the active area affecting the primary variables inlet pressure of the precision of voltage regulation, being conducive to improving the pressurizer precision of voltage regulation.
The utility model also has advantage compact, cheap for manufacturing cost and easy to use simple for structure.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
Mark parts: spring sealed circle 13 low-pressure gas source interface 14 connection jaws 15 scale amplifying of 1 electronic pressure controller 5 load air chamber 6 sensing element 7 guide rod 8 housing 9 valve seat 10 valve rod 11 unloading cavity 12 loads room 16 pressure transducer 17 second connecting tube 18 first connecting tube.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the high-accuracy large flux control valve of a kind of electric control pilot operated, comprise the first connecting tube 18, first connecting tube 18 connects high-pressure high-flow valve, high-pressure high-flow valve comprises housing 8, first connecting tube 18 connects the side of housing 8, valve seat 9 is installed in the interior survey bottom of housing 8, in valve seat 9, valve rod 10 is installed, unloading cavity 11 is set between valve seat 9 and valve rod 10, the middle part of housing 8 arranges sensing element 6, housing 8 is positioned at below sensing element 6 and guide rod 7 is set, the interior location of housing 8 arranges load air chamber 5 above sensing element 6, the middle part of the first connecting tube 18 connects one end of the second connecting tube 17, the other end of the second connecting tube 17 connects the top of housing 8, second connecting tube 17 communicates with load air chamber 5, the middle part of the second connecting tube 17 arranges guide's high pressure regulator, guide's high pressure regulator comprises scale amplifying and loads room 15, the top that scale amplifying loads room 15 connects electron pressure control gear, electron pressure control gear comprises electronic pressure controller 1, the side of electronic pressure controller 1 arranges low-pressure gas source interface 13, the opposite side of electronic pressure controller 1 arranges connection jaws 14.
The optional set point signal source of electronic pressure controller 1 of the present utility model, external analog signal 4 ~ 20mA or 1 ~ 5VDC; Feedback and error signal restriction able to programme.For system provides closed-loop feedback to control, possess extraordinary precision and response time, can computer be connected, carry out internet-based control.
Guide's high pressure regulator of the present utility model can carry out the decentralized control from vacuum to 6000PSI pressure range.When electronic pressure controller provides very little guide's bleed pressure, regulator can obtain very large outlet pressure, i.e. (2 ~ 125) of regulator outlet pressure=automatically controlled guide's bleed pressure doubly.And accurately control at a distance with the use of realizing with electronic pressure controller, control accuracy of outlet pressure is up to 0.1%.
High-pressure high-flow valve of the present utility model is due to sensing element about 6 area equation, the pressure that Flow valve air chamber is introduced equals the outlet pressure of Flow valve, and better, control accuracy is high for its Flow characteristics and Pressure characteristics, increase orifice size, large discharge usage requirement can be realized.
High-pressure high-flow valve of the present utility model adopts discharging type air chamber loading structure, and the primary component of this structure is by load air chamber 5, sensing element 6, valve seat 9, valve rod 10 and unloading cavity 11 etc.
Being mainly used in of the utility model sensing element 6 experiences outlet pressure and change thereof, thus drives and open and close valve rod 10 row and regulate.Sensing element 6 adopts canvas filler rubber diaphragm, the feature such as it has, and rigidity is little, highly sensitive, endurance, absorbing, quality are little, good airproof performance.Due to sensing element about 6 area equation, the pressure that its air chamber is introduced equals the outlet pressure of Flow valve, and better, control accuracy is high, can reach 0.1% of outlet pressure for its valve export Flow characteristics and Pressure characteristics.
Guide's high pressure regulator Main Function of the present utility model changes orifice size to realize regulated variable---the adjustment of rate of discharge and pressure.Valve seat 9, valve rod 10 adopt soft and hard conical surface sealing structure, according to different flow value Cv=0.46 ~ 12 requirements, change the size of valve seat latus rectum, just can change the size of flow value Cv.
Its function of unloading cavity 11 of the present utility model lays down a part of load, even if the load part on valve is offset from balancing each other, reducing the active area affecting the primary variables inlet pressure of the precision of voltage regulation, being conducive to improving the pressurizer precision of voltage regulation.
Between described valve seat 9 and valve rod 10, spring sealed circle 12 is set.Off-load motive sealing form of the present utility model adopts spring sealed circle 12, and spring sealed circle 12 is made up of U-shaped chuck and spring two-part.When pressure is lower, spring sealed circle 12 relies on spring force to be exerted pressure outward by sealing lip, chuck sealing surface is close to be required the part sealed, realizes good sealing effect; When pressure is higher, system pressure also acts on sealing lip, and spring sealed like this circle 12, under the acting in conjunction of spring force and medium power, achieves more good sealing.U-shaped chuck is polytetrafluoroethylene PTFE+30%Cu powder, has both increased the wear resistance of general plug envelope, and has increased again its electric conductivity; Spring material is Austenitic Stainless Steel, has good chemical property.
The middle part of described second connecting tube 17 arranges pressure transducer 16, and pressure transducer 16 is positioned at the second connecting tube 17 apart from the nearlyer side of housing 8.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the high-accuracy large flux control valve of electric control pilot operated, it is characterized in that: comprise the first connecting tube (18), first connecting tube (18) connects high-pressure high-flow valve, high-pressure high-flow valve comprises housing (8), first connecting tube (18) connects the side of housing (8), valve seat (9) is installed in the interior survey bottom of housing (8), in valve seat (9), valve rod (10) is installed, unloading cavity (11) is set between valve seat (9) and valve rod (10), the middle part of housing (8) arranges sensing element (6), housing (8) is positioned at sensing element (6) below and guide rod (7) is set, the interior location of housing (8) arranges load air chamber (5) in sensing element (6) top, the middle part of the first connecting tube (18) connects one end of the second connecting tube (17), the other end of the second connecting tube (17) connects the top of housing (8), second connecting tube (17) communicates with load air chamber (5), the middle part of the second connecting tube (17) arranges guide's high pressure regulator.
2. the high-accuracy large flux control valve of electric control pilot operated according to claim 1, it is characterized in that: described guide's high pressure regulator comprises scale amplifying and loads room (15), the top that scale amplifying loads room (15) connects electron pressure control gear, electron pressure control gear comprises electronic pressure controller (1), the side of electronic pressure controller (1) arranges low-pressure gas source interface (13), and the opposite side of electronic pressure controller (1) arranges connection jaws (14).
3. the high-accuracy large flux control valve of electric control pilot operated according to claim 1, is characterized in that: arrange spring sealed circle (12) between described valve seat (9) and valve rod (10).
4. the high-accuracy large flux control valve of electric control pilot operated according to claim 1, it is characterized in that: the middle part of described second connecting tube (17) arranges pressure transducer (16), pressure transducer (16) is positioned at the second connecting tube (17) distance housing (8) nearlyer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603685.4U CN204176089U (en) | 2014-10-16 | 2014-10-16 | The high-accuracy large flux control valve of a kind of electric control pilot operated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603685.4U CN204176089U (en) | 2014-10-16 | 2014-10-16 | The high-accuracy large flux control valve of a kind of electric control pilot operated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176089U true CN204176089U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420603685.4U Expired - Lifetime CN204176089U (en) | 2014-10-16 | 2014-10-16 | The high-accuracy large flux control valve of a kind of electric control pilot operated |
Country Status (1)
| Country | Link |
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| CN (1) | CN204176089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889589A (en) * | 2014-10-16 | 2016-08-24 | 河南航天液压气动技术有限公司 | Electronic control pilot-operated type high-precision large-flow regulating valve |
-
2014
- 2014-10-16 CN CN201420603685.4U patent/CN204176089U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889589A (en) * | 2014-10-16 | 2016-08-24 | 河南航天液压气动技术有限公司 | Electronic control pilot-operated type high-precision large-flow regulating valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150225 |