CN1962473A - Full-automatic intelligent control on-line drug-feeding security system - Google Patents

Abstract

The invention discloses a full-automatic intelligent control on-line dosing protection system, which consists of water circulating system and dosing system, wherein the water circulating system contains user A, cooling tower B and circulating pump; the dosing system concludes three dosing barrels, closing valve, water sample sampling valve, Y-shaped filter and closing valve; the system cascades the water circulating system, which is composed of double-signal conductivity controller, ECH-604EpH value controller, ECH-604I ORP value controller, ECH-604J soluble oxygen on-line detector, drainage electromagnetic valve, circulating pump, ECH-604F self-reverse-washing filter and ECH-604A on-line erosion test device; the open communication protocol is built in the control system, which connects precedence machine (BA system) to monitor the whole course of dosing system.

Description

Full-automatic intelligent control on-line drug-feeding security system

Technical field

The present invention relates to a kind of water treatment intelligent online Controlling System, particularly be applicable to the circulating water quality full-automatic intelligent control on-line drug-feeding security system.

Background technology

For easy fouling and corrosive phenomenon in the Control Circulation water system, what prior art generally adopted is, cycle water is carried out the detection and the analysis of not timing, thereafter determine the method for added amount of chemical again, the limitation of this method is can not make in time the circulating water system parameter, react accurately to determine the medicament demand, like this, not only can cause the waste of medicament also can influence the effect of circulating water treatment.

Disclosed at present water treatment agent controller [South China Science ﹠ Engineering University. the water treatment agent controller. water treatment information Leader .2002,5], also only be to the control of medicament flow in the dosing process, fail to overcome the shortcoming that monitoring water quality on line and chemicals dosing plant are separated, can not realize comprehensive on-line Control, more can't realize the remote data transmission of circulating water system circulating water system.

Summary of the invention

The purpose of this invention is to provide a kind of cycle water parameter full-automatic intelligent control on-line drug-feeding security system, this system can carry out on-line real time monitoring to the multiple parameter in the circulating water system, in time output equipment is made a response.

For achieving the above object, technical scheme of the present invention is: comprise that user A, cooling tower B and recycle pump have constituted circulating water system, the online specific conductivity controller of online corrosion testing apparatus dual signal, on-line controller, dissolved oxygen on-line detector, add explosive barrel, signal is transferred to the nucleus equipment programmable controller of intelligence system by data line, after the PLC controller is received input signal, in time output equipment is made a response; Electromagnetic drive METERING DIAPHRAGM PUMPS, control divider pulse water meter, magnetic valve blowdown apparatus and automatic backwashing filter, to determine water treatment agent dosage, amount of makeup water, blowdown flow rate and backwash filter in the circulating water system, guarantee the safe and stable operation of circulating water system.

This system's annexation is: three add the explosive barrel parallel connection, are series at water system with stopping valve, water sample sampling valve, y-type filter, stopping valve then; Dual signal specific conductivity controller, ECH-604EpH value controller, ECH-604I ORP value controller, ECH-604J dissolved oxygen on-line detector, blowdown magnetic valve, recycle pump, ECH-604F automatic backwashing filter, the online corrosion testing apparatus of ECH-604A are series in the system circuit.Each monitoring device can be matched according to actual needs.

Beneficial effect of the present invention: this system can carry out on-line real time monitoring to the multiple parameter in the circulating water system by the scene is on probation, in time output equipment is made a response.Reach and make the water non-scaling of trying one's best, do not corrode, long bacterium, economic benefit is obvious.

Description of drawings

Fig. 1 inserts the site plan of circulating water system for the fully-automatic intelligent system;

Fig. 2 is the schema of full-automatic intelligent control on-line drug-feeding security system.

Embodiment

Below in conjunction with drawings and Examples to the present invention's detailed explanation of making comparisons.

With reference to Fig. 1, this is the site plan that the fully-automatic intelligent system inserts circulating water system.

As shown in the figure, user A, cooling tower B and recycle pump have constituted circulating water system, and arrow is depicted as the access port place of fully-automatic intelligent control Automatic Dosing safeguards system X in circulating water system.

With reference to Fig. 2, this is the schema of ECH-604 full-automatic intelligent control on-line drug-feeding security system.

As shown in the figure, this drug-feeding security system comprises: the online corrosion testing apparatus 1 of ECH-604A, the onlinespecific conductivity controller 2 of ECH-604C dual signal, ECH-604E pH on-line controller 3, ECH-604I ORP on-line controller 4, ECH-604J dissolved oxygen on-line detector 5, add explosive barrel 6, signal is transferred to the nucleus equipment ECH-604B PLCprogrammable controller 7 of intelligence system by data line, after the PLC controller is received input signal, following output equipment is made a response: ECH-604G electromagnetic drive METERING DIAPHRAGM PUMPS 8, ECH-604D control divider pulse water meter 9, magneticvalve blowdown apparatus 10 and ECH-604F automatic backwashing filter 11, to determine water treatment agent dosage in the circulating water system, amount of makeup water, blowdown flow rate and backwash filter, the safe and stable operation of assurance circulating water system.

The line connection of ECH-604 system is: three add the explosive barrel parallel connection, are series at water system with stopping valve, water sample sampling valve, y-type filter, stopping valve then; ECH-604C dual signal specific conductivity controller, ECH-604EpH value controller, ECH-604I ORP value controller, ECH-604J dissolved oxygen on-line detector, blowdown magnetic valve, recycle pump, ECH-604F automatic backwashing filter, the online corrosion testing apparatus of ECH-604A are series in the system circuit.Each monitoring device can be matched according to actual needs.

The functional character of above-mentioned each key modules is:

(1) etch state that is subjected to of corrosion coupon can convert corrosion current to by signal converter in the online corrosion testing apparatus of ECH-604A, transfers in the online viewing system again, and system in time adjusts according to corrosion current and controls adding of corrosion inhibiting and descaling agent.

(2) ECH-604B PLC programmable controller this be the nucleus equipment of full-automatic intelligent control on-line drug-feeding security system, be that whole intelligence system is accepted each instrument signal of circulating water system and transmission signal and realized the junction centre of control.At this, parameter such as index such as system's specific conductivity, pH value, redox potential, dissolved oxygen, amount of makeup water and corrosion current and water treatment agent dosage, blowdown flow rate all can realize remote transmission and control.If certain parameter has deviation in the tele-control system, the PLC controller is reported to the police (dodging as red light), and tele-control system can send online signal simultaneously, and the staff receives online signal, can take immediate steps.

The PLC Controlling System is built-in intellectualized module can go out each medicament according to online detection data computation and add dose, and store all on-line data, can consult system history data and current data at any time.

Open communication agreement that this Controlling System is built-in can connect with upper computer (BA system), and upper computer can be monitored the whole process of medicine system.

(3) ECH-604C specific conductivity controller, this is a specific conductivity controller with MPU function, and is simple to operate and can independently programme, and can realize handshaking with ECH-604B PLC, participates in the total system Collaboration.The setting of all parameters and set(ting)value all are stored in the special storer, lose during with anti-power failure.The specific conductivity controller can be controlled the operation of waste removal equipment according to actual conductivity value and requirement of system design, and the retarding action value can be set; Can be according under meter input signal or adding by timing mode control corrosion inhibiting and descaling agent.

(4) ECH-604E pH controller, this is a microprocessor controller with background illumination and touch-button, simple to operate can independently the programming can be realized handshaking with ECH-604B PLC, participates in the total system Collaboration.Control the operation of sour pump, alkali pump according to actual pH and requirement of system design, and the retarding action value can be set; Two independent alarm relaies start high low level pH value guard signal, and another rly. output can drive electromagnetic valve device, has and does not lose memory function continuously; Timer internal can be provided with the maximum working time of dosing pump, and is excessive with explosive filling free; Can carry out single-point or dual-point calibration, automatic or manual temperature compensation can be set.

(5) ECH-604G electromagnetic drive METERING DIAPHRAGM PUMPS, surge generator drives electromagnetic actuator device (EPU), sucks and the discharge opeing stroke thereby drive the barrier film that links to each other.This type of pump horsepower consumption is very low, and pressure reaches as high as 70Bar, by regulating the dose that adds that metering throw of pump and frequency are regulated pump.But the advantage of this equipment is the manual regulation output flow, also can accept external pulse signal or 4-20mA Signal Regulation flow.

(6) ECH-604I ORP controller, this is the microprocessor controller of a tool background illumination and touch formula button, simple to operate can independently the programming can be realized handshaking with ECH-604B PLC, participates in the total system Collaboration.This equipment can be controlled adding of reductive agent pump A and oxidant pump B with ON/OFF formula or proportion expression dual mode according to actual ORP value and requirement of system design, and timer internal can be provided with the maximum working time of dosing pump, and is excessive with explosive filling free.Two independent alarm relaies start high low level ORP value guard signal, and another rly. output can drive electromagnetic valve device etc., has and does not lose memory function continuously; Can carry out single-point or dual-point calibration, automatic or manual temperature compensation can be set.

Claims (8)

1, full-automatic intelligent control on-line drug-feeding security system is used for the circulating water quality fully-automatic intelligent and controls online water treatment, it is characterized in that:

This system comprises circulating water system, medicine system;

Described circulating water system comprises user A, cooling tower B and recycle pump;

Described medicine system comprises that three add explosive barrel, stopping valve, water sample sampling valve, y-type filter, stopping valve, and this system is series at circulating water system; Dual signal specific conductivity controller, ECH-604EpH value controller, ECH-604I ORP value controller, ECH-604J dissolved oxygen on-line detector, blowdown magnetic valve, recycle pump, ECH-604F automatic backwashing filter, the online corrosion testing apparatus of ECH-604A constitute;

Open communication agreement that this Controlling System is built-in can connect with upper computer (BA system), and upper computer can be monitored the whole process of medicine system.

2, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1, it is characterized in that: described online drug-feeding security system, its flow process is: corrosion testing apparatus (1), specific conductivity controller (2), ECH-604E pH on-line controller (3), ECH-604I ORP on-line controller (4), J dissolved oxygen on-line detector (5), add explosive barrel (6), by PLC programmable controller (7), in time to electromagnetic drive METERING DIAPHRAGM PUMPS (8), pulse water meter (9), magnetic valve blowdown apparatus (10) and automatic backwashing filter (11) are reacted, to determine water treatment agent dosage in the circulating water system, amount of makeup water, blowdown flow rate and backwash filter are to guarantee the safe and stable operation of circulating water system.

3, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described online corrosion testing apparatus can convert corrosion current to by signal converter from the etch state that is subjected to of corrosion coupon, in time adjusts and the adding of control corrosion inhibiting and descaling agent according to corrosion current.

4, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described PLC programmable controller has been put intellectualized module within it, has stored all on-line data.

5, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described specific conductivity controller is a specific conductivity controller with MPU function, can independently programme, and can realize handshaking with ECH-604B PLC, participates in the total system Collaboration.

6, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described pH controller is a microprocessor controller with background illumination and touch-button, can independently programme, and can realize handshaking with ECH-604B PLC.

7, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described electromagnetic drive METERING DIAPHRAGM PUMPS, this pump horsepower consumption is very low, and pressure can reach 70Bar, can regulate the dosing amount.

8, full-automatic intelligent control on-line drug-feeding security system as claimed in claim 1 or 2 is characterized in that:

Described ORP controller is the microprocessor controller of a tool background illumination and touch formula button, can independently programme, and can realize handshaking with ECH-604B PLC.

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