CN101021275A - Detectable flow electromagnetic valve - Google Patents
Detectable flow electromagnetic valve Download PDFInfo
- Publication number
- CN101021275A CN101021275A CN 200710038075 CN200710038075A CN101021275A CN 101021275 A CN101021275 A CN 101021275A CN 200710038075 CN200710038075 CN 200710038075 CN 200710038075 A CN200710038075 A CN 200710038075A CN 101021275 A CN101021275 A CN 101021275A
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- solenoid valve
- differential pressure
- electromagnetic valve
- 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.)
- Granted
Links
Images
Abstract
The present invention relates to an electromagnetic valve capable of detecting and controlling flow rate. Said electromagnetic valve includes the following several portions: electromagnetic valve self-body, valve lead, compression spring, electromagnet, pressure-guiding hole pipe, differential pressure sensor, plastic soft pressure pipe and electric cable interface. Said invention provides the connection mode of all the above-mentioned portions, and also provides the working principle of said electromagnetic valve and its operation method.
Description
Technical field
The present invention relates to a kind of control gear of technical field of automation, be specifically related to a kind of detectable flow electromagnetic valve.
Background technique
Along with World Economics and explosive growth of population, how the consumption of world's water resources also with a kind of surprising speed increment, realizes that it is the problem of the human survival and development of the human common relation of being concerned about that water resources recycles with water-saving problem already.From the angle of process automation, how using water wisely is worth people's special concern equally with the problem of controlling water.In a word, the control problem that realize people's water must rely on water flow control device and be achieved.Moreover, because general solenoid valve has been widely used in the conducting and the closing control of fluid flow, also all to be achieved to the flow control of dissimilar fluids is final in the industrial automation by the aperture control of electromagnetic valve, how reaching the optimization of fluid flow control, is the technical issues that need to address all the time in the automatic technology.
Find through literature search prior art, Ye Sheng, Hu Jie is in " journal of Zhejiang university " (agricultural and life science version, 2005 the 5th phases) delivered the paper that is entitled as " based on the engine consumption Research on Testing System of virtual instrument technique " on, a kind of engine consumption test system is proposed, this system mainly realizes the measurement and the control of fuel flow by oil-filled solenoid valve and weighing transducer, there is higher measuring accuracy in this system, and can show instantaneous oil consumption and average fuel consumption in real time, but the oil-filled solenoid valve itself that this system adopts does not possess the flow sensing function, must cooperate outside weighing transducer could realize sensing to flow, and this oil-filled solenoid valve can not be realized the real-time control of fuel flow, generally speaking, this oil-filled solenoid valve fuel flow of being unrealized is measured integrated with the control function.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, propose a kind of detectable flow electromagnetic valve, make its structure of having simplified flow control device, and adopt the method for directly measuring flow, reduced the departure in the Flow-rate adjustment process.
The present invention is achieved by the following technical solutions, the present invention includes: solenoid valve body, valve, pressure spring, electromagnet, the pressure guide hole pipe, differential pressure transducer, soft pressing plate of plasticity and cable interface, valve, pressure spring, electromagnet, differential pressure transducer, soft pressing plate of plasticity and cable interface are distributed in solenoid valve body inside, by order arrangement from bottom to up, valve is positioned at the central position of solenoid valve body inside, pressure spring is enclosed within on the cylindrical body on valve top, so that being produced a prestressing force, valve is in normally open by the solenoid valve valve, electromagnet is positioned at directly over this cylindrical body, and it is gapped with this cylindrical body, the pressure of pressure guide hole pipe input termination is positioned on the tube wall of fluid passage of solenoid valve body inside, the pressure output end head of pressure guide hole pipe is connected with the pressure input end of differential pressure transducer, the fluid differential pressure electric signal of differential pressure transducer is exported by output conductor, the fluid differential pressure electric signal output conductor that is subjected to electric coil input lead and differential pressure transducer of electromagnet is connected with cable interface, and is connected with signal processor with solenoid valve body controller outward respectively by it.
Described solenoid valve body is a kind of shell construction, inner hollow, there are upstream line joint and downstream line joint in the outside left and right sides, on solenoid valve body relies on, the outside thread of downstream line joint is guaranteed with last, the reliable connection of downstream line, upstream line joint and downstream line joint and valve are through-flow, and the duct forms the fluid passage, the solenoid valve body bottom is furnished with the loading and unloading that a bottom blind nut is convenient to valve and pressure spring, part top and bottom two-part in the solenoid valve body, electromagnet is placed on top from the bottom to top successively, differential pressure transducer, soft pressing plate of plasticity and cable interface, electromagnet is subjected to the electric signal output line of the lead-in wire of electric coil and differential pressure transducer to pass wire guide on the soft pressing plate of plasticity respectively and the pin in the cable interface welds, cable interface and solenoid valve body are by being threaded, and the bottom is placed pressure spring from top to bottom successively, valve and bottom blind nut.The inner particular geometric shapes of solenoid valve body has guaranteed that valve radially can smooth-goingly move with the flow area that changes valve from high point to minimum, or open to maximum from minimum, valve is the movement parts in the solenoid valve body, and pressure spring is half movement parts, and other is the stationary fixing part.
Described valve is the step type column structure, top is cylindrical body, the bottom is a cuboid, flow axial boring at cuboid over against liquid one through-flow duct is arranged, this through-flow duct can be conical, it goes out port radius less than inlet radius, inlet radius is consistent with the upstream line joint radius of solenoid valve body, by the convergent shape in the through-flow duct of taper shape to strengthen the drag effect of fluid flow, therefore when fluids such as current are flowed through this through-flow duct of taper shape, thereon, the downstream can present tangible differential pressure of flow, when valve was in opening state, convection cell formed the flow area of standard-sized sheet, as long as move up and down the valve upper cylinder, can change the valve flow area, until closing; Utilize the step type column structure of valve, the prestressing force that the suit pressure spring makes this cylindrical body utilization be compressed spring on the valve upper cylinder makes valve be in normally open, in case electromagnet is subjected to, the electromagnetic force that electromagnet produces just spurs the valve upper cylinder, the thrust that overcomes pressure spring makes valve move towards the direction of closing, until closing; Dead electricity again after electromagnet is subjected to electricity, the electromagnetic force of electromagnet will disappear, this moment valve under the thrust of pressure spring, will move towards the direction of opening, logical until standard-sized sheet.
Described electromagnet is by formed by electric coil and soft magnetic core two-part, be installed on the top of valve, and keep certain passive distance with the valve upper cylinder, be enclosed within on the soft magnetic core by electric coil, when being subjected to electric coil to be subjected to electricity, under the effect of electromagnetic field, soft magnetic core produces magnetic induction and forms magnetic force and overcomes the ferromagnet pulling of the thrust of spring with valve, and then valve turned down gradually, until closing; Otherwise, the valve upper cylinder is under the thrust of pressure spring, valve is moved towards the direction of opening, until open-minded fully, be subjected to electric coil by ac power supply, when the serial connection hard switching is controlled its conducting or turn-offed, be subjected to electric coil that two kinds of working staties are only arranged, promptly, be subjected to the electric current maximum, no electric circuit is called switch working state, controls its conducting or shutoff by the serial connection power switching device, then can utilize the soft of power switching device to open and soft turn-off function, realization is subjected to the continuous variation of electric coil circulating current, can form the mild of flow and regulate continuously, the water hammer effect that produces in the time of can also avoiding the sudden change of solenoid valve flow area.
Described pressure guide hole pipe is the aperture pipe that two diameters are 1mm, play a part conducting fluid pressure, wherein one is upstream pressure guide hole pipe, its pressure input termination is positioned at the upstream, fluid passage near on the tube wall of valve inlet, another root is a downstream pressure guide hole pipe, its pressure input termination is positioned at the downstream, fluid passage near on the tube wall of valve export, on, the pressure input termination of downstream pressure guide hole pipe connects the pressure input end of differential pressure transducer respectively, the fluid differential pressure electric signal of differential pressure transducer is exported by output conductor, when having fluid to pass through in the valve, because the convergent shape in the through-flow duct of valve causes throttle effect, make and produce different hydrodynamic pressures in the import and export of valve, transport to the input end of differential pressure transducer through the conduction of pressure guide hole pipe, differential pressure sensing element conversion in differential pressure transducer, the fluid differential pressure signal conversion is become the fluid differential pressure electric signal,, handle for subsequent module or device again through output conductor output.
The soft pressing plate of described plasticity, both utilized its insulation characterisitic well insulated each other by the lead-in wire of electric coil and the electric signal output line of differential pressure transducer, fastening force the fixing of utilizing its soft plasticity to be threaded again with assurance solenoid valve internal components by cable interface to guarantee the electromagnet that therefrom passes.
Described cable interface utilizes connecting thread closely to be connected with solenoid valve body top, and all attached numbering of signaling line wherein is so that to carry out signal by the equipment beyond telecommunication cable and the present invention mutual.
Described bottom blind nut can guarantee the convenience of valve and pressure spring loading and unloading, also is convenient to the cleaning of valve internal, posts leak-proof gasket on the blind nut of bottom, in case liquid seepage from here.
The present invention can realize that the Detection ﹠ Controling of flow are integrated, promptly in electromagnetic valve device, concentrate the Detection ﹠ Controling two big functions that realized flow, the flow transducer (or other flow detector) that need not to install additional separately outward by solenoid valve again detects flow, and compact structure of the present invention, I﹠M are all very convenient.
Description of drawings
Fig. 1 embodiment of the invention structural representation
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: solenoid valve body 1, valve 2, pressure spring 3, electromagnet 4, upstream pressure guide hole pipe 5, downstream pressure guide hole pipe 6, differential pressure transducer 7, the soft pressing plate 8 of plasticity, cable interface 9, solenoid valve body 1 is a kind of shell construction, its inner hollow, there are upstream line joint 14 and downstream line joint 15 in the outside left and right sides, the two ends, fluid passage by they and last, downstream line connects, valve 2, pressure spring 3, electromagnet 4, differential pressure transducer 7, soft pressing plate 8 of plasticity and cable interface 9 are by the inside that is arranged in solenoid valve body from bottom to up in proper order, the bottom of solenoid valve body 1 is furnished with a bottom blind nut 16, be convenient to the loading and unloading of valve 2 and pressure spring 3, valve 2 is step type cylinder mechanisms, be in the central position of solenoid valve body 1, its top is cylindrical body, the bottom is a cuboid, pressure spring 3 is enclosed within on the cylindrical body on valve 2 tops and is in normally open so that valve 2 is produced a prestressing force by valve 2, electromagnet 4 is placed on valve 2 tops, keep a determining deviation with above-mentioned cylindrical body, the pressure input termination of upstream pressure guide hole pipe 5 is positioned at the upstream, fluid passage of solenoid valve body inside near on the tube wall of valve inlet, the pressure input termination of downstream pressure guide hole pipe 6 then is positioned at downstream, above-mentioned fluid passage near on the tube wall of valve export, on, downstream pressure guide hole pipe 5,6 pressure output end head then is connected to the pressure input end of differential pressure transducer 7 respectively, the fluid differential pressure electric signal of differential pressure transducer 7 is exported by output conductor, and the fluid differential pressure electric signal output conductor 13 that is subjected to electric coil 11 input leads 12 and differential pressure transducer 7 of electromagnet 4 is connected with signal processor with solenoid valve body controller outward respectively by cable interface 9.
The valve 2 of present embodiment is the ferromagnetic metal component of step type column structure form, top is cylindrical body, the bottom is a cuboid, in cuboid boring on the through-flow direction one conical through-flow duct is arranged, this through-flow duct go out port radius less than inlet radius, inlet radius is consistent with the upstream line joint radius of solenoid valve body 1, by the convergent shape in the through-flow duct of taper shape to strengthen the drag effect of fluid flow, therefore when fluids such as current are flowed through this through-flow duct of taper shape, thereon, the downstream can present tangible differential pressure of flow, when valve 2 is in opening state, convection cell forms the flow area of standard-sized sheet, as long as move up and down above-mentioned cylindrical body, can change valve 2 flow areas, until closing, utilize the step type column structure of valve 2, the prestressing force that suit pressure spring 3 makes valve 2 upper cylinder utilizations be compressed spring 3 on the cylindrical body makes valve 2 be in normally open in the top, in case electromagnet 4 is subjected to, the electromagnetic force that electromagnet 4 produces is just with valve 2 upper end cylindrical body pullings, the thrust that overcomes pressure spring 3 makes valve 2 move towards the direction of closing, until closing, dead electricity again after electromagnet 4 is subjected to electricity, the electromagnetic force of electromagnet 4 will disappear, this moment, valve 2 upper cylinder were under the thrust of pressure spring 3, valve 2 will be moved towards the direction of opening, logical until standard-sized sheet.
The electromagnet 4 of present embodiment is installed on the top of valve 2, and keep certain passive distance with valve 2 upper cylinder, form by being subjected to electric coil 11 and soft magnetic core 10 two-part, be enclosed within on the soft magnetic core 10 by electric coil 11, when being subjected to electric coil 11 to be subjected to electricity, under the effect of electromagnetic field, soft magnetic core 10 produces very strong magnetic induction intensity, therefore form enough magnetic force and overcome the thrust of spring ferromagnetic valve 2 pullings, and then valve 2 turned down gradually, until closing, otherwise valve 2 is moved under the thrust of pressure spring 3 towards the direction of opening, logical until standard-sized sheet; Be subjected to electric coil 11 by ac power supply, when the serial connection hard switching is controlled its conducting or turn-offed, be subjected to electric coil 11 that two kinds of working staties are only arranged: or be subjected to the electric current maximum, or no electric circuit, be called switch working state; When serial connection electronic power switch device is controlled its conducting or is turn-offed, can utilize then that the electronic power switch device is soft to be opened and soft turn-off function, realization is subjected to the continuous variation of electric coil 11 circulating currents, can form the mild of flow regulates continuously, therefore, the water hammer effect that produces in the time of can also avoiding the sudden change of solenoid valve flow area.
The upstream pressure guide hole pipe 5 of present embodiment and downstream pressure guide hole pipe 6 are aperture pipes that two diameters are 1mm, when having fluid to pass through in the valve 2, because the convergent shape in valve 2 through-flow ducts causes throttle effect, make and produce different hydrodynamic pressures in the import and export of valve 2, and then generation fluid differential pressure, this differential pressure is transported to the input end of differential pressure transducer 7 through 5,6 conduction of upstream and downstream pressure guide hole pipe, and the differential pressure sensing element in differential pressure transducer 7 converts the fluid differential pressure electric signal to, through output conductor output, handle again for subsequent module or device.
The soft pressing plate 8 of the plasticity of present embodiment, because of its insulation characterisitic, both can guarantee that the electromagnet 4 that therefrom passes was well insulated by the lead-in wire of electric coil 11 and the electric output conductor 13 of fluid differential pressure of differential pressure transducer 7 each other, fastening force the fixing that can utilize its soft plasticity to be threaded again with assurance solenoid valve internal components by cable interface 9.
The cable interface 9 of present embodiment closely is connected with the top of solenoid valve by the connecting thread of cable interface 9, and all attached numbering of signaling line wherein is so that to carry out signal by the equipment beyond telecommunication cable and the present embodiment mutual.
The bottom blind nut 16 of present embodiment can guarantee the convenience of valve 2 and pressure spring 3 loading and unloading, makes the cleaning of valve 2 inside more convenient, and in addition, bottom blind nut 16 posts leak-proof gasket 17, in case liquid seepage from here.
Present embodiment is by on specific, downstream pressure guide hole pipe 5, on the 6 conduction valves 2, the fluid downstream differential pressure is to differential pressure transducer 7, differential pressure transducer 7 becomes the fluid differential pressure electric signal by its differential pressure sensing element with the fluid differential pressure signal conversion, according to the derivation of the physical quantity conversion relation of sensing element in Bernoulli's energy conservation equation and the differential pressure transducer 7 can obtain the to flow through formula of flow of valve 2, simultaneously, present embodiment is subjected to the added voltage in electric coil 11 two ends just can change the electric current that is subjected in the electric coil 11 by changing electromagnet 4, therefore change the electromagnetic attraction of electromagnet 4 and reach the control that valve 2 is moved up and down displacement, and then the flow area of change valve 2 is to reach the control of fluid flow, in addition, the measurement of present embodiment is also very convenient with being connected of outside with control signal.
The working procedure of present embodiment is as follows:
(1) present embodiment is connected with the upstream and downstream pipeline by upstream and downstream pipe joint 14,15;
(2) electromagnet 4 is connected with single phase alternating current power supply with electronic power switch device serial connection back by the input lead 12 of electric coil 11;
(3) the fluid differential pressure electric signal output conductor 13 of differential pressure transducer 7 is connected with the input end of external signal processor;
(4) the external signal processor can accurately be known the fluid flow size of the current solenoid valve of flowing through from the signal of fluid differential pressure electric signal output conductor 13 outputs, according to the control target of process automation system, signal processor sends the control corresponding instruction to drive circuit;
(5) drive circuit converts control command to the control signal of electronic power switch device, to change the dutycycle of electronic power switch device output, thereby can continuously change the electric current that passed through by electric coil 11, and then the electromagnetic attraction that continuously changes electromagnet 4 is to reach the control target of continuous control valve aperture.
Present embodiment has following effect: (1) need not to install separately flow detector to the controlled fluid flow; (2) directly know flow information from the differential pressure transducer output signal; (3) according to the dutycycle of control strategy output control command, and then continuously change the electric current that is subjected to electric coil 11, finally reach the control target of continuous control valve 2 apertures with the output of control electronic power switch device; (4) utilize the soft start and the soft turn-off performance of electronic power switch device, be that zero current starts and the no-voltage shutoff, and the continuous variation characteristic of the electric current of conducting and turn off process, can reach the process automation control target of the compound control law variation of valve opening very easily by the formulation of control strategy, and the water hammer effect of having avoided valve opening to produce because of sudden change.
Claims (10)
1, a kind of detectable flow electromagnetic valve, comprise: solenoid valve body, valve, pressure spring, electromagnet, the pressure guide hole pipe, it is characterized in that, also comprise differential pressure transducer, soft pressing plate of plasticity and cable interface, valve, pressure spring, electromagnet, differential pressure transducer, the soft pressing plate of plasticity, cable interface is by the inside that is arranged in solenoid valve body from bottom to up in proper order, valve is positioned at the central position of solenoid valve body inside, pressure spring is placed on the cylindrical body on valve top, electromagnet is positioned at directly over this cylindrical body, and it is gapped with this cylindrical body, the pressure of pressure guide hole pipe input termination is positioned on the tube wall of fluid passage of solenoid valve body inside, the pressure output end head is connected with the pressure input end of differential pressure transducer, and the fluid differential pressure electric signal output conductor that is subjected to electric coil input lead and differential pressure transducer of electromagnet is connected with cable interface.
2, detectable flow electromagnetic valve according to claim 1 is characterized in that, described solenoid valve body is a shell construction, inner hollow, and there are upstream line joint and downstream line joint in the outside left and right sides, and the bottom is furnished with the bottom blind nut.
3, detectable flow electromagnetic valve according to claim 2, it is characterized in that, part top and bottom in the described solenoid valve body, top is placed electromagnet, differential pressure transducer, the soft pressing plate of plasticity and cable interface from the bottom to top successively, electromagnet is subjected to the electric signal output line of the lead-in wire of electric coil and differential pressure transducer to pass wire guide on the soft pressing plate of plasticity respectively and the pin in the cable interface welds, cable interface and solenoid valve body are by being threaded, and the bottom is placed pressure spring, valve and bottom blind nut from top to bottom successively.
4, detectable flow electromagnetic valve according to claim 2 is characterized in that, described solenoid valve body is connected with the upstream and downstream pipeline respectively by the outside thread on upstream line joint, the downstream line joint.
5, detectable flow electromagnetic valve according to claim 2 is characterized in that, described upstream line joint and downstream line joint and valve are through-flow, and the duct forms the fluid passage.
6, detectable flow electromagnetic valve according to claim 1, it is characterized in that, described valve is the step type column structure, top is cylindrical body, the bottom is a cuboid, and pressure spring is enclosed within on the cylindrical body on valve top, and cuboid has a through-flow duct on through-flow direction, this through-flow duct go out port radius less than inlet radius, inlet radius is consistent with the upstream line joint radius of solenoid valve body.
7, detectable flow electromagnetic valve according to claim 6 is characterized in that, described through-flow duct is conical.
8, detectable flow electromagnetic valve according to claim 1, it is characterized in that, described pressure guide hole pipe is the aperture pipe that two diameters are 1mm, wherein one is upstream pressure guide hole pipe, its pressure input termination is positioned at the upstream, fluid passage near on the tube wall of valve inlet, another root is a downstream pressure guide hole pipe, and its pressure input termination is positioned at the downstream, fluid passage near on the tube wall of valve export, and the pressure of upstream and downstream pressure guide hole pipe input termination connects the pressure input end of differential pressure transducer respectively.
9, detectable flow electromagnetic valve according to claim 1 is characterized in that, described cable interface closely is connected with the top of solenoid valve body by connecting thread.
10, detectable flow electromagnetic valve according to claim 1 is characterized in that, posts leak-proof gasket on the blind nut of described bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100380759A CN100449185C (en) | 2007-03-15 | 2007-03-15 | Detectable flow electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100380759A CN100449185C (en) | 2007-03-15 | 2007-03-15 | Detectable flow electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021275A true CN101021275A (en) | 2007-08-22 |
| CN100449185C CN100449185C (en) | 2009-01-07 |
Family
ID=38709121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100380759A Expired - Fee Related CN100449185C (en) | 2007-03-15 | 2007-03-15 | Detectable flow electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449185C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735388A (en) * | 2011-04-01 | 2012-10-17 | 株式会社电装 | Sensor apparatus integrated to injector of internal combustion engine |
| CN102840357A (en) * | 2012-08-23 | 2012-12-26 | 杭州云谷科技有限公司 | Flow measurement and control integrated device |
| CN105423134A (en) * | 2015-11-27 | 2016-03-23 | 国网北京市电力公司 | Control valve and fluid system |
| CN107479586A (en) * | 2017-09-13 | 2017-12-15 | 武汉华星光电技术有限公司 | A kind of cleaning machine flow control system and method |
| CN109555897A (en) * | 2019-01-18 | 2019-04-02 | 黄强 | Valve location detection method, position sensor of valve and valve |
| CN110203269A (en) * | 2019-06-12 | 2019-09-06 | 郭育泉 | A kind of logistics transportation industry boost motor |
| CN110522556A (en) * | 2019-08-30 | 2019-12-03 | 华中科技大学同济医学院附属同济医院 | A kind of controllable electromagnetism drain valve of forward type for treating glaucoma |
| CN110933273A (en) * | 2019-11-27 | 2020-03-27 | 重庆特斯联智慧科技股份有限公司 | Face shooting device and system suitable for ground installation of building |
| CN111373182A (en) * | 2017-11-24 | 2020-07-03 | 株式会社富士金 | Valve device, control method for control device using the valve device, fluid control device, and semiconductor manufacturing device |
| CN111406243A (en) * | 2017-11-30 | 2020-07-10 | 株式会社富士金 | Flow rate control device |
| CN113552022A (en) * | 2021-07-12 | 2021-10-26 | 超威电源集团有限公司 | Lead alloy fluidity detection device and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484118A (en) * | 1987-09-26 | 1989-03-29 | Yamatake Honeywell Co Ltd | Control valve with flow rate indicator |
| CN2315539Y (en) * | 1997-10-01 | 1999-04-21 | 中国矿业大学 | Measurer for eccentric irregular diameter pipe flow |
| ITBS20020046A1 (en) * | 2002-05-03 | 2003-11-03 | Enolgas Bonomi Spa | BALL VALVE WITH FLOW METER INCORPORATED DIRECTLY INTO THE BALL |
| CN1397857A (en) * | 2002-08-30 | 2003-02-19 | 清华大学 | Digital pressure/flow regulating electromechanical equipment |
| CN2594770Y (en) * | 2002-11-13 | 2003-12-24 | 卢玖庆 | Throttling differential pressure flowmeter |
| CN2603879Y (en) * | 2003-02-18 | 2004-02-18 | 钟显力 | Gas flow control solenoid valve |
| CN2674411Y (en) * | 2004-02-06 | 2005-01-26 | 王波 | Flange pressure-taking hole plate valve with elevation pressure-taking hole |
| CN2876486Y (en) * | 2005-12-02 | 2007-03-07 | 沈新荣 | Intelligent high precision dynamic flow balancing valve |
-
2007
- 2007-03-15 CN CNB2007100380759A patent/CN100449185C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735388A (en) * | 2011-04-01 | 2012-10-17 | 株式会社电装 | Sensor apparatus integrated to injector of internal combustion engine |
| CN102735388B (en) * | 2011-04-01 | 2014-09-10 | 株式会社电装 | Sensor apparatus integrated to injector of internal combustion engine |
| CN102840357A (en) * | 2012-08-23 | 2012-12-26 | 杭州云谷科技有限公司 | Flow measurement and control integrated device |
| CN105423134A (en) * | 2015-11-27 | 2016-03-23 | 国网北京市电力公司 | Control valve and fluid system |
| CN107479586A (en) * | 2017-09-13 | 2017-12-15 | 武汉华星光电技术有限公司 | A kind of cleaning machine flow control system and method |
| CN111373182A (en) * | 2017-11-24 | 2020-07-03 | 株式会社富士金 | Valve device, control method for control device using the valve device, fluid control device, and semiconductor manufacturing device |
| CN111406243A (en) * | 2017-11-30 | 2020-07-10 | 株式会社富士金 | Flow rate control device |
| CN109555897A (en) * | 2019-01-18 | 2019-04-02 | 黄强 | Valve location detection method, position sensor of valve and valve |
| CN109555897B (en) * | 2019-01-18 | 2024-01-19 | 黄强 | Valve position detection method, valve position sensor and valve |
| CN110203269A (en) * | 2019-06-12 | 2019-09-06 | 郭育泉 | A kind of logistics transportation industry boost motor |
| CN110522556A (en) * | 2019-08-30 | 2019-12-03 | 华中科技大学同济医学院附属同济医院 | A kind of controllable electromagnetism drain valve of forward type for treating glaucoma |
| CN110522556B (en) * | 2019-08-30 | 2021-07-13 | 华中科技大学同济医学院附属同济医院 | Front-mounted adjustable electromagnetic drainage valve for treating glaucoma |
| CN110933273A (en) * | 2019-11-27 | 2020-03-27 | 重庆特斯联智慧科技股份有限公司 | Face shooting device and system suitable for ground installation of building |
| CN113552022A (en) * | 2021-07-12 | 2021-10-26 | 超威电源集团有限公司 | Lead alloy fluidity detection device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100449185C (en) | 2009-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100449185C (en) | Detectable flow electromagnetic valve | |
| CN101587027B (en) | System for testing heat-transfer performance of gas-water-oil heat interchanger | |
| CN102087168B (en) | Exhaust back pressure wave adjustment device for supercharged diesel engine | |
| CN103308290B (en) | A kind of test loop of threeway proportional pressure-reducing valve and method of testing | |
| CN204990045U (en) | Fluid flow pressure control device | |
| CN103033386B (en) | A kind of thermostat dynamic lift proving installation and method of testing | |
| CN2893660Y (en) | Controllable flow multifunction flow meter | |
| CN100451901C (en) | Flour measuring and coutrolling method for electromagnetic valve | |
| CN204677836U (en) | Be applied to the decompression electricity generating device of hydraulic tubing | |
| CN206399608U (en) | A kind of hydraulic station for the intelligent leak detection system of hydraulic turbine servomotor | |
| CN206864391U (en) | A kind of exploration type paddle structure novel water flow switch | |
| CN208331332U (en) | A kind of roll squeezer solenoid directional control valve | |
| CN103032398B (en) | Ball control flow jet type high-frequency electrohydraulic digital valve | |
| CN205823505U (en) | For EFI fuel pressure Transfer tectonics | |
| CN102564755B (en) | Energy-saving test method of regulating valve | |
| CN207111559U (en) | A kind of highly integrated SERVO CONTROL ultrahigh pressure proportional inserted valve | |
| CN202832511U (en) | Locatable direct-reading type dual-flow water amount regulation device | |
| CN105135028B (en) | A kind of voice coil motor drives high-speed switch valve | |
| CN206918365U (en) | A kind of water body valve of intelligent control | |
| CN202188195U (en) | Combined valve capable of measuring and controlling flow precisely | |
| CN205117543U (en) | Automatically controlled gas mixing arrangement of thickened degree | |
| CN203082324U (en) | Electronic control system controlling ground control device by utilizing valves | |
| US11624682B2 (en) | Sampling system and sampling method | |
| CN202493347U (en) | Electro-hydraulic comprehensive control device of engine throttle of hydraulic excavator | |
| CN103335149A (en) | Solenoid valve-type intelligent electro-pneumatic valve positioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Changbi Liquid Connector Co., Ltd. Assignor: Shanghai Jiao Tong University Contract fulfillment period: 2009.4.19 to 2014.4.19 contract change Contract record no.: 2009990000717 Denomination of invention: Detectable flow electromagnetic valve Granted publication date: 20090107 License type: Exclusive license Record date: 2009.7.2 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.19 TO 2014.4.19; CHANGE OF CONTRACT Name of requester: NINGBO CHANGBI FLUID CONNECTOR CO., LTD. Effective date: 20090702 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20130315 |