CN2511671Y - Automatic chemicals supplier with ratio of flow - Google Patents
Automatic chemicals supplier with ratio of flow Download PDFInfo
- Publication number
- CN2511671Y CN2511671Y CN 01207293 CN01207293U CN2511671Y CN 2511671 Y CN2511671 Y CN 2511671Y CN 01207293 CN01207293 CN 01207293 CN 01207293 U CN01207293 U CN 01207293U CN 2511671 Y CN2511671 Y CN 2511671Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- flow
- frequency
- meter
- width modulation
- 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
The utility model provides an automatic chemicals supplier with ratio of flow with low cost, simple structure and convenient use and maintenance. The utility model consists of a flux signal generator 1, a frequency-pressure conversion circuit 2, a pulse width modulation circuit 3, a power amplifying circuit 4 and a switch type actuating mechanism (an electromagnetic valve or a pump mechanism 5 with nonadjustable speed). The proportion of the opening time and closing time of the actuating mechanism in a period decides the mean value of the flux of the medicament passing through the actuating mechanism, and the mean value is proportionate to the flux.
Description
The utility model relates to and a kind ofly adds the automatic gear of reagent in proportion according to the treatment capacity of water, is applicable to water treatment process.
Adding an amount of medicament according to the treatment capacity of water in system is one of main contents of water technology operation, and this process is realized that automated operation is to guarantee water quality conformance with standard and the minimum technical measures of reagent consumption.Existing similar technique device is made up of topworkies such as flow transmitter, controller and volume pump or variable valve usually, and facility investment is big, and debugging is used complicated, requires the maintenance technology level higher.
The utility model provide a kind of low cost, simple in structure, working service easily ratio add automatic gear.
The purpose of this utility model is achieved in that the remote transmitting water meter of selecting band meter degree converting member for use converts volts DS as flow signal generator 1, the pulse signal that is directly proportional with flow to through frequency-voltage conversion circuit 2, be used for the output pulse signal dutycycle of setting pulse width modulation circuit 3, this dutycycle is proportional with the flow of water meter of flowing through, and carries out power magnification rear drive topworks 5 (adopting magnetic valve or pump machines that can not speed governing usually) through circuit 4 again.
Now in conjunction with the accompanying drawings 1 and accompanying drawing 2 explanation technical characterictic of the present utility model: accompanying drawing 1 is a block diagram, accompanying drawing 1 accompanying drawing 12 is an electrical schematic diagram, under meter 1 is output as frequency and the proportional pulse signal of flow, convert thereof into volts DS by frequency-voltage conversion circuit 2, input as pulse-width modulation (PWM) circuit 3, the dutycycle of this circuit output voltage signal is directly proportional with the volts DS of input, that is output pulse width and flow are proportional, be loaded on topworks's (opening/closing list control magnetic valve or volume pump) 5 on the dosing pipeline through the power magnification rear drive, its proportionlity of opening with the turn-off time has determined the medicament flow mean value of topworks of flowing through, thus the amount that in system, adds medicament also with the proportional relation of the treatment capacity of water.
Further specify concrete technical characterictic of the present utility model below in conjunction with drawings and Examples: under meter 1 is selected the commercial goods of band meter degree converting member in the domestic water meter for use, and frequency-voltage conversion circuit 2 is taked and will be obtained and the proportional analog quantity voltage V of pulse-repetition behind the pulse voltage signal smothing filtering
01Simple method, referring to frame of broken lines in the accompanying drawing 2; Pulse-width modulation (PWM) circuit is selected application-specific integrated circuit chip 3524 for use, and 7. 8. bipod connects R and C2 formation oscillator circuit, and 9. pin meets the analog quantity voltage V of setting pulse width
01(12) (13) bipod is respectively the collector electrode of two output triodes, (11) (14) bipod is respectively the emtting electrode of two output triodes, and output stage is connected into emitter follower circuit to promote the base stage (or grid) of power tube 4, the topworks 5 that power tube 4 drives in the main power circuit.
This device is work like this: when discharge is zero, and the output of flow signal generator 1 no pulse signal, the output voltage V of frequency-voltage conversion circuit
01=0, the dutycycle of the output square wave of pulse width modulation circuit 3 approaches zero, and topworks closes, and no medicament flows into system; When discharge constantly increased, the pulse signal frequency improved thereupon, the output voltage V of frequency-voltage conversion circuit 3
01(the 9. pin voltage of PWM application-specific integrated circuit chip 3524) constantly rises, and output pulse width is also widened thereupon, and it is big that the ratio of topworks's service time and turn-off time becomes, and the average discharge that drops into medicament in the unit time also increases.Adjusting W1 selects to add the proportionlity of the reagent and the water yield, regulates W2 and selects suitable topworks's work period.
Claims (2)
1, a kind of automatic gear of adding medicament according to liquid flow rate in proportion, under meter 1, frequency-voltage conversion circuit 2, pulse width modulation circuit 3, power amplification circuit 4 and topworks's 5 orders that can send pulse signal are electrically connected, it is characterized in that: insert frequency-voltage conversion circuit 2 with the proportional pulse signal of flow and convert volts DS to, this volts DS is again as the input signal of pulse width modulation circuit 3, through power magnification rear drive topworks 5.
2, according to the described device of claim 1, it is characterized in that: the under meter 1 that can send pulse signal is selected the remote transmitting water meter of band meter degree converting member in the domestic water meter for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207293 CN2511671Y (en) | 2001-03-02 | 2001-03-02 | Automatic chemicals supplier with ratio of flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207293 CN2511671Y (en) | 2001-03-02 | 2001-03-02 | Automatic chemicals supplier with ratio of flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511671Y true CN2511671Y (en) | 2002-09-18 |
Family
ID=33627717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207293 Expired - Fee Related CN2511671Y (en) | 2001-03-02 | 2001-03-02 | Automatic chemicals supplier with ratio of flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511671Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543757A (en) * | 2012-08-03 | 2014-01-29 | 宁波保税区楷世环保科技有限公司 | Flow control system |
-
2001
- 2001-03-02 CN CN 01207293 patent/CN2511671Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543757A (en) * | 2012-08-03 | 2014-01-29 | 宁波保税区楷世环保科技有限公司 | Flow control system |
| CN103558872A (en) * | 2012-08-03 | 2014-02-05 | 宁波保税区楷世环保科技有限公司 | Flow control system |
| CN103543757B (en) * | 2012-08-03 | 2016-01-27 | 宁波保税区楷世环保科技有限公司 | A kind of flow control system |
| CN103558872B (en) * | 2012-08-03 | 2016-01-27 | 宁波保税区楷世环保科技有限公司 | A kind of flow control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |