CN201221483Y - Proportional digital valve type water pump vane adjusting device - Google Patents
Proportional digital valve type water pump vane adjusting device Download PDFInfo
- Publication number
- CN201221483Y CN201221483Y CNU2008200753330U CN200820075333U CN201221483Y CN 201221483 Y CN201221483 Y CN 201221483Y CN U2008200753330 U CNU2008200753330 U CN U2008200753330U CN 200820075333 U CN200820075333 U CN 200820075333U CN 201221483 Y CN201221483 Y CN 201221483Y
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- control
- valve
- digital valve
- water pump
- cylinder body
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Abstract
The utility model relates to a proportional digital valve pump blade adjusting device, pertaining to the field of hydrotechnics. The proportional digital valve pump blade adjusting device comprises an adjusting mechanism and a cylinder. The adjusting mechanism is a control valve group based on proportional digital valve, the cylinder is connected with the control oil pipe, and the control valve is connected with the control cylinder to switch the pressure oil in the control oil pipe connected with the cylinder. The proportional digital valve pump blade adjusting device has a simple structure and high integrity; standard hydraulic components are adopted, the adjusting accuracy is high and the adjusting device is favorable for pump station management to realize automation, modernization, informationization and digitalization, etc.
Description
Technical field
The utility model belongs to the hydrotechnics field, particularly relates to a kind of ratio digital valve formula water pump blade controlling device.
Background technique
At present, the known technology water pump develops into the form of can regulate flow from flow setting type, and the controlling device of regulating water pump blade also arises.Shortcomings such as the controlling device in the eighties in last century mostly is electrodynamic type, and the rotation of dependence motor comes the open angle of adjusting vane, and it exists degree of regulation not high, and safety coefficient is low, along with the continuous increase of water pump, motorized adjustment can not satisfy it and regulate requirement.So the regulative mode that relies on hydraulic pressure to regulate occurred, so just can satisfy the adjusting requirement of water pump.This controlling device complex structure, employing be the working principle of actuating motor lever, rely on actuating motor to drive the distributing valve piston and move up and down and switch oil circuit and control increasing of blade angle or subtract.The processed complex of its distributing valve, the required precision height has hindered the automation and the digitized development of pumping plant.
Summary of the invention
The technical problem of the utility model for existing in the solution known technology, and a kind of ratio digital valve formula water pump blade controlling device is provided.
The purpose of this utility model provides a kind of designs simplification, and the level of integration height adopts the standard hydraulic element, and the degree of regulation height helps pumping station operation automation, modernization, informationization and digitized ratio digital valve formula water pump blade controlling device.
The technological scheme that the utility model is taked is:
Ratio digital valve formula water pump blade controlling device, controlling mechanism and cylinder body are arranged, it is characterized in that: controlling mechanism is based on ratio digital valve formula control valve group, and cylinder body connects the control oil pipe, connect the control cylinder body based on ratio digital valve formula control valve, switch the pressure oil of the control oil pipe that links to each other with cylinder body.
The utility model can also adopt following technical measures:
Described ratio digital valve formula water pump blade controlling device is characterized in: assembled successively by ratio digital solenoid valve, oil duct plate, modulating valve and pressure relay based on ratio digital valve formula control valve group and constitute.
Described ratio digital valve formula water pump blade controlling device is characterized in: cylinder body is divided into two chambeies up and down, and interior tube chamber and the outer lumen with the control oil pipe is communicated with respectively.
Advantage that the utlity model has and good effect:
Ratio digital valve formula water pump blade controlling device adopts technical solutions of the utility model, with the angle that the control mode of Proportional valve group formula is regulated water pump blade, realized pumping plant by motorized, mechanization to high automation, high digitizing, highly integrated transformation.Satisfy the requirement that realizes high automation by the mode of selecting new control unit and change basic structure, and stability, the reliability controlled automatically are higher.
1, actuating motor lever controlling type controlling mechanism in the past, there is mechanical dead zone in itself, and control accuracy is nothing like valve group formula controlling mechanism, and the former control accuracy is generally ± and 5%, and the latter's control accuracy has reached ± 1%.
2, accepted standard hydraulic element only are used as the oil duct plate that is used to install and can easily realize regulating action request, adopt board-like installation to connect convenient disassembly fully.
3, realize automation control by pressure signal, displacement signal etc., convenient succinct.
4, can realize the control of the time of regulating by the adjusting of control valve group.
Description of drawings
Fig. 1 is the utility model linkage structure schematic representation;
Fig. 2 is the plan structure schematic representation of Fig. 1;
Fig. 3 is the control valve structure for amplifying schematic representation of Fig. 1.
Among the figure, 1. position limit switch, 2. oil purifier, 3. upper cylinder body, 4. lower cylinder body, 5. aperture indication, 6. control valve, 7. control oil pipe, 8. ratio digital solenoid valve, 9. oil duct plate, 10. modulating valve, 11. pressure relayes, 12. manually operated valves.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, Fig. 2 and Fig. 3.
Ratio digital valve formula water pump blade controlling device, controlling mechanism and cylinder body are arranged, controlling mechanism control cylinder body, its controlling mechanism is based on ratio digital valve formula control valve 6, is assembled successively by ratio digital solenoid valve 8, oil duct plate 9, modulating valve 10 and pressure relay 11, manually operated valve 12 based on ratio digital valve formula control valve 6 to constitute.Cylinder body connects the control oil pipe, and cylinder body is fitted together by upper cylinder body 3 and lower cylinder body 4, and interior tube chamber and the outer lumen with the control oil pipe is communicated with respectively.Connect the control cylinder body based on ratio digital valve formula control valve, regulate the pressure oil of the control oil pipe 7 that links to each other with cylinder body.Pressure oil oil purifier 2 is housed on the cylinder body.Cylinder body is equipped with position limit switch 1, and the position limit switch contact is housed on the plunger.
The characteristics of present embodiment:
1, simple in structure, aesthetic in appearance
Adopt the form of oil duct plate, connect pipeline and replace by an integrated oil duct plate fully, the outside pipeline that connects is cancelled basically, has reduced owing to connect oozing of causing, oil leakage phenomenon.Because it is the minimizing of pipeline makes outward appearance more uniform, more brief clear on the structure.The hydrovalve of employing standard replaces the distributing valve of former manufacturing voluntarily, has reduced volume and installing space greatly, owing to be standard component, aesthetic in appearance, reliable performance.
Reduce the hydraulic pressure amplifying element, regulated accurately, had good quick-action and stability.
2, adopt proportional valve control, improve control accuracy
Ratio digital solenoid valve 8 is to be controlled the straight ejector half selector valve of charged feedback by proportion electro-magnet, is used for the flow and the flow direction of controlling liquid.This valve is made up of valve body, position transducer, proportion electro-magnet, spool and Returnning spring.Push rod promotion spool moves when proportion electro-magnet is charged, and its displacement amount and input electrical signal are in proportion, and the variation of the variation control flow rate of the displacement amount of spool rests on the neutral position by Returnning spring with spool after action finishes.
It is enough and be superimposed with the electric current of vibrating signal that proportional amplifier is used for that control signal is converted to output power, so that the control of Comparative Examples valve.The input of proportional amplifier is a control voltage, is output as electric current.Have good static state and dynamic performance, reliable operation, antijamming capability is strong.
Ratio digital solenoid valve 8 and proportional amplifier combine and have just constituted the elementary cell of proportional valve control, and with the increase of its control blade angle with reduce, its precision can reach ± and 1%.The flow that draws water of water pump can be regulated arbitrarily, controlling mechanism state of a control of living in can be accurately judged in collection by pressure signal, cooperation by displacement transducer and valve group forms electric closed-loop regulating system, the pumps station chamber can be known the angle of blade adjustments at any time, and angle value is read at the scene that need not.
Claims (3)
1. ratio digital valve formula water pump blade controlling device, controlling mechanism and cylinder body are arranged, it is characterized in that: controlling mechanism is based on ratio digital valve formula control valve group, cylinder body connects the control oil pipe, connect the control cylinder body based on ratio digital valve formula control valve, switch the pressure oil of the control oil pipe that links to each other with cylinder body.
2. ratio digital valve formula water pump blade controlling device according to claim 1 is characterized in that: assembled successively by ratio digital solenoid valve, oil duct plate, modulating valve and pressure relay based on ratio digital valve formula control valve and constitute.
3. ratio digital valve formula water pump blade controlling device according to claim 1 is characterized in that: cylinder body is divided into two chambeies up and down, and interior tube chamber and the outer lumen with the control oil pipe is communicated with respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200753330U CN201221483Y (en) | 2008-07-15 | 2008-07-15 | Proportional digital valve type water pump vane adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200753330U CN201221483Y (en) | 2008-07-15 | 2008-07-15 | Proportional digital valve type water pump vane adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221483Y true CN201221483Y (en) | 2009-04-15 |
Family
ID=40574991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200753330U Expired - Fee Related CN201221483Y (en) | 2008-07-15 | 2008-07-15 | Proportional digital valve type water pump vane adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221483Y (en) |
-
2008
- 2008-07-15 CN CNU2008200753330U patent/CN201221483Y/en not_active Expired - Fee Related
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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 |
Granted publication date: 20090415 Termination date: 20170715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |