CN202346737U - Fluid quantitative filling control device - Google Patents
Fluid quantitative filling control device Download PDFInfo
- Publication number
- CN202346737U CN202346737U CN2011204599540U CN201120459954U CN202346737U CN 202346737 U CN202346737 U CN 202346737U CN 2011204599540 U CN2011204599540 U CN 2011204599540U CN 201120459954 U CN201120459954 U CN 201120459954U CN 202346737 U CN202346737 U CN 202346737U
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- fluid
- quantitative filling
- positive displacement
- control
- control device
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Abstract
The utility model provides a fluid quantitative filling control device. The fluid quantitative filling control device comprises a fluid conveying part, a detection signal input part and a metering operation and control part, wherein the fluid conveying part adopts a volume type gear pump during hydraulic transmission; the detection signal input part is a rotating speed detector of a volume type gear pump; an output signal of the rotating speed detector is connected with a singlechip; the output of the single chip is connected with a control end of a solid relay for controlling the volume type gear pump; the contact of the solid relay is connected in series with a power supply loop of a drive motor of the volume type gear pump; and the input end of the singlechip is connected with a control keyboard. During operation, the singlechip measures pulse number and performs operation control with the corresponding parameter of the weight of fluid to be measured; when the value reaches the preset value, the motor is controlled to stop operation and quantitative filling is realized. In another method, the motor is a constant-speed motor, a time counter of the singlechip controls the time-counting time by performing given comparison with the keyboard through the singlechip and the solid relay acts to control the stop of the pump.
Description
Technical field
The utility model relates to a kind of fluid quantitative filling control device, the quantitative control technology of the flow when belonging to the fluid can.
Background technology
Now, the mode of FL/MTR is generally adopted in the metering of convection cell, in this metering method, all constitutes a system by fluid delivery system (various pump), FL/MTR, control setup (various valve) usually.This system is practicality and actv. when carrying out big number metering (10 liters time), but when petty (1 liter left and right sides time) metering, just practical inadequately with accurately.This is because the operation of FL/MTR is to be promoted by measured fluid; Particularly in the process that starts and stop; FL/MTR all will overcome various resistances and force of inertia; This just makes FL/MTR in the cycle of run fundamental error arranged all each time, and this error nonlinear error often.If this error be 30 milliliters/inferior (concerning existing FL/MTR has been that precision is very high), in each metering more than 10 liters, this point tolerance has not big harm, below 3/1000ths.But in each metering below 1 liter, its error is just more than 3 percent, the requirement of measuring accuracy out of reach.
Summary of the invention
The purpose of the utility model is to make full use of displacement pump fluid output quantity and its revolution corresponding relation, design a kind of simple in structure, cost is low, but also improves the fluid metering precision greatly, high efficiency fluid quantitative filling control device.
The technical scheme of the utility model: the fluid quantitative filling control device of the utility model comprises the transport portion of fluid; Detection signal importation and metering computing and control part; Its FLUID TRANSPORTATION partly is to adopt the positive displacement gear type pump; The detection signal importation is the revolution detector of positive displacement gear type pump, and the output signal of revolution detector is connected with micro controller system, and the output of micro controller system is connected with the control end of the solid-state relay of control positive displacement gear type pump; The contact of solid-state relay is connected on the current supply circuit of positive displacement gear pump driven motor, and the input end of micro controller system also is connected with supervisory keyboard.
Described revolution detector comprises the photocell and the light receiving element of the square tooth sender set that is installed on the positive displacement gear pump main shaft and tooth sender set both sides, the side of being placed in, and light receiving element is connected with counting machine, and counting machine is connected with micro controller system.
Described positive displacement gear pump driven motor adopts constant speed motor, and revolution detector is a time meter, and time meter is connected with micro controller system.
The advantage of the utility model: the utility model makes full use of the corresponding relation of displacement pump (gear type pump) fluid output quantity and its rotating cycle; Saved FL/MTR; Only need record the rotating cycle of displacement pump (gear type pump); Just can reach the purpose that convection cell measures, simplify existing fluid metering equipment and flow process greatly, improve the quantitative filling precision of fluid greatly.Especially for little measure unit (as: 1 liter/inferior), its measuring accuracy improves more than ten times than general fashion, has improved efficient, also greatly reduces the manufacturing cost of this equipment.
Description of drawings
Fig. 1 is the functional block diagram of the utility model.
Fig. 2 is the example structure scheme drawing that the rotating cycle detector of the utility model positive displacement gear type pump adopts photoelectric device.
Fig. 3 is the example structure scheme drawing that the utility model adopts constant speed motor and time meter.
The specific embodiment
As shown in Figure 1: the fluid quantitative filling control device of the utility model comprises the transport portion of fluid; Detection signal importation and metering computing and control part; Its FLUID TRANSPORTATION partly is to adopt the positive displacement gear type pump, and the detection signal importation is a revolution detector, the tach signal of revolution detector detection volume formula gear type pump; The output signal of revolution detector is connected with micro controller system; The output of micro controller system is connected with the control end of the solid-state relay of control positive displacement gear type pump, and the contact of solid-state relay J is connected on the current supply circuit of positive displacement gear pump driven motor D, and the input end of micro controller system also is connected with supervisory keyboard.K is a source switch.
Fig. 2 is the example structure scheme drawing that the rotating cycle detector of the utility model positive displacement gear type pump adopts photoelectric device: the rotating cycle of revolution detector detection volume formula gear type pump; The photocell and the light receiving element that comprise the square tooth sender set that is installed on the positive displacement gear pump main shaft and tooth sender set both sides, the side of being placed in; Light receiving element is connected with counting machine through input interface, and counting machine is connected with micro controller system.Control part comprises time mark generator, memory device, start button.When motor drives gear type pump and sender set rotation, the square tooth of sender set is through the light beam of repetition shading light radiated element, and light receiving element converts the optical signal that receives to electric impulse signal; Give counting machine, counting machine is given micro controller system with counting and is carried out, and micro controller system compares to given data according to keyboard; The action of control solid-state relay; Promptly when reaching preset value, promptly instruction motor shuts down, and so just reaches the purpose of quantitative filling.
When adopting sender set, sensor and pulse signal generator can also adopt electromagnetic induction device or Hall element.
Fig. 3 is the example structure scheme drawing that the utility model adopts constant speed motor and time meter: positive displacement gear pump driven motor adopts constant speed motor, and revolution detector is a time meter, and time meter is connected with micro controller system.When starting switch moves; During the rotation of constant speed motor driven gear pump, the one-chip computer internal timer picks up counting, and the rotative speed and the time relation of positive displacement gear type pump is stored in the computing machine; Carry out and the given comparison of keyboard through one-chip computer; The control timing time, the solid-state relay action, promptly control pump stops.
The utility model with the rotating cycle of detection volume formula gear type pump pass through convert; How many amounts of knowing the output fluid is; Again this is measured and preestablishes value and compare; Shut down (or through open and close magnetic valve, the operation of opening, stopping body) with regard to control pump in case reach predetermined value, thereby reach the purpose that convection cell carries out quantitative filling.
The core of the utility model is the corresponding relation that makes full use of displacement pump fluid output quantity and its rotating cycle, with the method metering of detection volume formula pump rotating cycle and the flow of control fluid, does not need FL/MTR.Therefore, so long as with the flow of the method meter fluid of detection volume formula pump rotating cycle, which kind of the counting mode no matter metering section adopts is, mode how, all belongs to the protection domain of the utility model.
Claims (3)
1. fluid quantitative filling control device; The transport portion that comprises fluid; Detection signal importation and metering computing and control part is characterized in that: FLUID TRANSPORTATION partly is to adopt the positive displacement gear type pump, and the detection signal importation is the revolution detector of positive displacement gear type pump; The output signal of revolution detector is connected with micro controller system; The output of micro controller system is connected with the control end of the solid-state relay of control positive displacement gear type pump, and the contact of solid-state relay is connected on the current supply circuit of positive displacement gear pump driven motor, and the input end of micro controller system also is connected with supervisory keyboard.
2. fluid quantitative filling control device according to claim 1; It is characterized in that: revolution detector comprises the photocell and the light receiving element of the square tooth sender set that is installed on the positive displacement gear pump main shaft and tooth sender set both sides, the side of being placed in; Light receiving element is connected with counting machine, and counting machine is connected with micro controller system.
3. fluid quantitative filling control device according to claim 1 is characterized in that: positive displacement gear pump driven motor adopts constant speed motor, and revolution detector is a time meter, and time meter is connected with micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204599540U CN202346737U (en) | 2011-11-18 | 2011-11-18 | Fluid quantitative filling control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204599540U CN202346737U (en) | 2011-11-18 | 2011-11-18 | Fluid quantitative filling control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202346737U true CN202346737U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204599540U Expired - Fee Related CN202346737U (en) | 2011-11-18 | 2011-11-18 | Fluid quantitative filling control device |
Country Status (1)
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| CN (1) | CN202346737U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698187A (en) * | 2013-12-27 | 2014-04-02 | 天津口岸检测分析开发服务有限公司 | Automatic preparation instrument and automatic distribution method of standard solution |
| CN104128217A (en) * | 2014-07-15 | 2014-11-05 | 辽东学院 | Volumetric solution rapid quantitative perfusion machine |
| CN104165137A (en) * | 2014-08-06 | 2014-11-26 | 浙江工业大学 | Convenience calibration and autonomous control method for digital frequency conversion controller special for industrial metering pump |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN109422224A (en) * | 2017-08-28 | 2019-03-05 | 康美包（苏州）有限公司 | The control method and control device of bottle placer and bottle placer |
| CN110479128A (en) * | 2019-08-13 | 2019-11-22 | 耐驰（兰州）泵业有限公司 | Single driving two-component certainty ratio mixes metering conveying single screw rod pump group and method and application |
-
2011
- 2011-11-18 CN CN2011204599540U patent/CN202346737U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698187A (en) * | 2013-12-27 | 2014-04-02 | 天津口岸检测分析开发服务有限公司 | Automatic preparation instrument and automatic distribution method of standard solution |
| CN103698187B (en) * | 2013-12-27 | 2016-03-30 | 天津口岸检测分析开发服务有限公司 | A kind of standard solution configures instrument and auto-allocation method automatically |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN104931719B (en) * | 2014-03-20 | 2018-06-08 | 浙江海峰制鞋设备有限公司 | A kind of mixed method of the hybrid system of multigroup material |
| CN104128217A (en) * | 2014-07-15 | 2014-11-05 | 辽东学院 | Volumetric solution rapid quantitative perfusion machine |
| CN104128217B (en) * | 2014-07-15 | 2015-12-02 | 辽东学院 | The quantitative quick filling machine of titrating solution |
| CN104165137A (en) * | 2014-08-06 | 2014-11-26 | 浙江工业大学 | Convenience calibration and autonomous control method for digital frequency conversion controller special for industrial metering pump |
| CN104165137B (en) * | 2014-08-06 | 2016-04-13 | 浙江工业大学 | The convenient demarcation of industry measurement pump special digital frequency-variable controller and autonomous controlling method |
| CN109422224A (en) * | 2017-08-28 | 2019-03-05 | 康美包（苏州）有限公司 | The control method and control device of bottle placer and bottle placer |
| CN110479128A (en) * | 2019-08-13 | 2019-11-22 | 耐驰（兰州）泵业有限公司 | Single driving two-component certainty ratio mixes metering conveying single screw rod pump group and method and application |
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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: 20120725 Termination date: 20171118 |