CN204522464U - A kind of SCM Based automatic backwashing filter control circuit - Google Patents
A kind of SCM Based automatic backwashing filter control circuit Download PDFInfo
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- CN204522464U CN204522464U CN201520218482.8U CN201520218482U CN204522464U CN 204522464 U CN204522464 U CN 204522464U CN 201520218482 U CN201520218482 U CN 201520218482U CN 204522464 U CN204522464 U CN 204522464U
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- circuit
- automatic backwashing
- backwashing filter
- scm based
- control circuit
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Abstract
The utility model discloses a kind of SCM Based automatic backwashing filter control circuit, comprise single chip machine controlling circuit and be connected respectively to the intrinsic safety type power supply of this single chip machine controlling circuit, input isolation photoelectric coupled circuit, export isolation photoelectric coupled circuit, output driving circuit, linear optical coupling circuit, liquid crystal display circuit, communication and download circuit, key circuit, the pressure sensor being arranged on the filter core both sides of described automatic backwashing filter is connected with single chip machine controlling circuit by described linear optical coupling circuit, the electromagnetic priority valve of described automatic backwashing filter connects described output isolation photoelectric coupled circuit and output driving circuit respectively.The utility model cost is lower, and desirable cost Ge Gaoang's take PLC as the control system of core, adopts intrinsic safety type circuit design and input, output isolation photoelectric coupled circuit, has higher safety and stability.
Description
Technical field
The utility model relates to a kind of automatic backwashing filter control system, especially about the SCM Based automatic backwashing filter control circuit of one.
Background technology
Automatic backwashing filter is widely used in industrial wastewater, the filtration of recirculated water, the regeneration of emulsion, waste oil filtration treatment, is a kind of advanced, efficient and easy-operating automatic filtering apparatus.But automatic backwashing filter control system in the market adopts PLC to control mostly, although stable performance, uneconomical material benefit, cost is higher, is badly in need of being further improved.
Summary of the invention
Main purpose of the present utility model is, overcome the problems such as cost is higher that prior art exists, a kind of SCM Based automatic backwashing filter control circuit is newly provided, the industrial Functional Requirement to automatic backwash controller can not only be met, but also adopt essence safety type circuits design, can be operated in that some are complicated, severe and flammable, can be quick-fried etc. dangerous situation, very practical.
Technical scheme provided by the utility model is: a kind of SCM Based automatic backwashing filter control circuit, described automatic backwashing filter comprises pressure sensor and electromagnetic priority valve, the filter core both sides of this automatic backwashing filter are located at by described pressure sensor, this control circuit comprises single chip machine controlling circuit, intrinsic safety type power supply, photoelectric coupled circuit is isolated in input for system input circuit and extraneous Acquisition Circuit being carried out Phototube Coupling, photoelectric coupled circuit is isolated in output for system output circuit and extraneous Acquisition Circuit being carried out Phototube Coupling, for increasing the output driving circuit of output driving current, for system and extraneous analog quantity being carried out the linear optical coupling circuit of linear photoelectric isolation, the liquid crystal display circuit of display parameters and information, communication and download circuit and key circuit, described pressure sensor is connected with single chip machine controlling circuit by described linear optical coupling circuit, described electromagnetic priority valve connects described output isolation photoelectric coupled circuit and output driving circuit respectively.
The single-chip microcomputer of described single chip machine controlling circuit is AVR series monolithic ATMEGA128.
Described intrinsic safety type power supply comprises power regulator module and power isolation module, described power regulator module adopts LM7808, LM7805 that external voltage is converted into single-chip microcomputer applied voltage, adopt the collection that LM4040 is analog quantity to provide reference voltage, described power isolation module utilizes B0505 by single-chip microcomputer electricity consumption and outside electric isolution.
Described input isolation photoelectric coupled circuit adopts TLP521-1 chip, and described output isolation photoelectric coupled circuit adopts TLP521-1 chip.
Described output driving circuit adopts ULN2803 chip.
Described linear optical coupling circuit adopts HCNR201 chip.
Described liquid crystal display circuit adopts LCD12864 liquid crystal.
Described communication and download circuit adopt RS232 serial communication and ISP to download and JTAG download circuit.
Described key circuit employing circuit board button is combined with extraneous button and carries out dual setting parameter.
Compared with prior art, the advantage of a kind of SCM Based automatic backwashing filter control circuit of the utility model and beneficial effect as follows:
1, the utility model adopts take AVR single chip as the automatic back flush filtration control system of core, and cost is lower, function and practice can replace completely price high take PLC as the control system of core;
2, the utility model technology adopts intrinsic safety type circuit design and input, output to isolate photoelectric coupled circuit, has higher safety and stability.
Accompanying drawing explanation
Fig. 1 is single chip machine controlling circuit of the present utility model.
Fig. 2 is power circuit of the present utility model.
Fig. 3 is digital quantity of the present utility model input Acquisition Circuit.
Fig. 4 is digital quantity output circuit of the present utility model.
Fig. 5 is analog input Acquisition Circuit of the present utility model.
Fig. 6 is liquid crystal display circuit of the present utility model.
Fig. 7 is communication of the present utility model and download circuit.
Detailed description of the invention
The utility model proposes a kind of SCM Based automatic backwashing filter control circuit, comprise single chip machine controlling circuit, intrinsic safety type power supply, digital quantity input Acquisition Circuit, digital quantity output circuit, analog input Acquisition Circuit, liquid crystal display circuit, communication and download circuit, key circuit.Single chip machine controlling circuit inputs Acquisition Circuit respectively with intrinsic safety type power supply, digital quantity, digital quantity output circuit, analog input Acquisition Circuit, liquid crystal display circuit, communication and download circuit, key circuit are connected.This control circuit also comprises data power down memory circuit and sound light alarming circuit, has data power down memory function and warning function respectively.
Single chip machine controlling circuit is the CPU of system, and preferably, the utility model can adopt AVR series monolithic ATMEGA128 to carry out the acquisition and processing of data, refers to Fig. 1, is ATMEGA128 single chip machine controlling circuit figure of the present utility model.
As shown in Figure 2, be power circuit of the present utility model.This intrinsic safety type power supply is that whole system is powered, comprise power regulator module, power isolation module and analog-to-digital conversion reference voltage module, in the preferred embodiment, power regulator module adopts LM7808, LM7805 that external voltage is converted into single-chip microcomputer applied voltage, adopt the collection that LM4040 is analog quantity to provide reference voltage, described power isolation module utilizes B0505 by single-chip microcomputer electricity consumption and outside electric isolution.
As shown in Figure 3, be digital quantity input Acquisition Circuit of the present utility model.Digital quantity input Acquisition Circuit comprises input isolation photoelectric coupled circuit, is used for gathering the external digital amount signals such as button and inputing to control circuit.
As shown in Figure 4, be digital quantity output circuit of the present utility model.Digital quantity output circuit comprises output driving circuit and exports isolation photoelectric coupled circuit, is used for controlling the external equipments such as the electromagnetic priority valve of backwash filter and sound light alarming circuit.
As shown in Figure 5, be analog input Acquisition Circuit of the present utility model.Analog input Acquisition Circuit comprises linear optical coupling circuit, and described linear optical coupling circuit is connected with the pressure sensor of the filter core both sides of described automatic backwashing filter, is used for gathering the force value at backwash filter filter core two ends; Described output isolation photoelectric coupled circuit and output driving circuit are connected the electromagnetic priority valve of described automatic backwashing filter respectively.
In preferred embodiment of the present utility model, described input isolation photoelectric coupled circuit adopts TLP521-1 chip that system input circuit and extraneous Acquisition Circuit are carried out Phototube Coupling, and described output isolation photoelectric coupled circuit adopts TLP521-1 chip that system output circuit and extraneous Acquisition Circuit are carried out Phototube Coupling.Described output driving circuit adopts ULN2803 chip to increase output driving current.
As shown in Figure 6, be liquid crystal display circuit of the present utility model.Liquid crystal display circuit is used for showing some parameters of backwash filter and information, is good human-computer interaction interface, can carries out display and the inquiry of parameter and information.LCD12864 chip can be adopted.
As shown in Figure 7, communication and download circuit are used for carrying out the download of program and carry out communication with external device, and RS232 serial communication and ISP can be adopted to download and JTAG download circuit.
Key circuit is used for setting and the inquiry parameter of backwash filter and information, adopts circuit board button to be combined with extraneous button and carries out dual setting parameter.
Circuit board of the present utility model in use, the external world is needed to provide DC 12V power supply, during wiring, the pressure sensor of backwash filter filter core both sides is received the analog input Acquisition Circuit of this circuit board, the equipment such as electromagnetic priority valve and sound light alarming circuit is received the digital quantity output circuit of this circuit board, LCD12864 liquid crystal display is inserted the liquid crystal display circuit of this circuit board, extraneous switch and button are received the key circuit of this circuit board.
Claims (9)
1. a SCM Based automatic backwashing filter control circuit, described automatic backwashing filter comprises pressure sensor and electromagnetic priority valve, the filter core both sides of this automatic backwashing filter are located at by described pressure sensor, it is characterized in that: this control circuit comprises single chip machine controlling circuit, intrinsic safety type power supply, photoelectric coupled circuit is isolated in input for system input circuit and extraneous Acquisition Circuit being carried out Phototube Coupling, photoelectric coupled circuit is isolated in output for system output circuit and extraneous Acquisition Circuit being carried out Phototube Coupling, for increasing the output driving circuit of output driving current, for system and extraneous analog quantity being carried out the linear optical coupling circuit of linear photoelectric isolation, the liquid crystal display circuit of display parameters and information, communication and download circuit and key circuit, described pressure sensor is connected with single chip machine controlling circuit by described linear optical coupling circuit, described electromagnetic priority valve connects described output isolation photoelectric coupled circuit and output driving circuit respectively.
2. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: the single-chip microcomputer of described single chip machine controlling circuit is AVR series monolithic ATMEGA128.
3. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, it is characterized in that: described intrinsic safety type power supply comprises power regulator module and power isolation module, described power regulator module adopts LM7808, LM7805 that external voltage is converted into single-chip microcomputer applied voltage, adopt the collection that LM4040 is analog quantity to provide reference voltage, described power isolation module utilizes B0505 by single-chip microcomputer electricity consumption and outside electric isolution.
4. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described input isolation photoelectric coupled circuit adopts TLP521-1 chip, and described output isolation photoelectric coupled circuit adopts TLP521-1 chip.
5. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described output driving circuit adopts ULN2803 chip.
6. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described linear optical coupling circuit adopts HCNR201 chip.
7. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described liquid crystal display circuit adopts LCD12864 liquid crystal.
8. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described communication and download circuit adopt RS232 serial communication and ISP to download and JTAG download circuit.
9. a kind of SCM Based automatic backwashing filter control circuit as claimed in claim 1, is characterized in that: described key circuit employing circuit board button is combined with extraneous button and carries out dual setting parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218482.8U CN204522464U (en) | 2015-04-13 | 2015-04-13 | A kind of SCM Based automatic backwashing filter control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218482.8U CN204522464U (en) | 2015-04-13 | 2015-04-13 | A kind of SCM Based automatic backwashing filter control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204522464U true CN204522464U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520218482.8U Expired - Fee Related CN204522464U (en) | 2015-04-13 | 2015-04-13 | A kind of SCM Based automatic backwashing filter control circuit |
Country Status (1)
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| CN (1) | CN204522464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761316A (en) * | 2019-03-14 | 2019-05-17 | 武汉丽辉新技术有限公司 | A kind of faintly acid oxidation potential generator and its control circuit |
-
2015
- 2015-04-13 CN CN201520218482.8U patent/CN204522464U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761316A (en) * | 2019-03-14 | 2019-05-17 | 武汉丽辉新技术有限公司 | A kind of faintly acid oxidation potential generator and its control circuit |
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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: 20150805 Termination date: 20190413 |