CN103912955B - Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof - Google Patents
Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof Download PDFInfo
- Publication number
- CN103912955B CN103912955B CN201210594256.0A CN201210594256A CN103912955B CN 103912955 B CN103912955 B CN 103912955B CN 201210594256 A CN201210594256 A CN 201210594256A CN 103912955 B CN103912955 B CN 103912955B
- Authority
- CN
- China
- Prior art keywords
- water
- cooling water
- medicament
- monitoring
- unit
- 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.)
- Active
Links
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention discloses central air conditioning water system on-line monitoring anticipation and control medicine system and application thereof, this medicine system includes: moisturizing and blowdown flow monitoring means, intake-outlet temperature monitoring unit, drug concentration monitoring means, pH value monitoring means, monitored conductivity unit, adding of agent unit, automatic pollution discharge unit, instruction reception unit and control unit.When the present invention solves legacy system adding of agent, the overshoot of recirculated cooling water drug concentration, the problem of fluctuation, decrease the waste of medicament, reduce operating cost.
Description
Technical field
The present invention relates to a kind of on-line monitoring anticipation and control medicine system and adding method thereof, particularly relate to a kind of central hollow
The on-line monitoring anticipation of water transfer system controls medicine system and adding method thereof.
Background technology
The water quality data collection delay of large-scale recirculating cooling water system (circulation of such as central air-conditioning) is delayed is
Cause the main cause that circulating water quality shape difference and medicament use the situations such as excess to occur.Large-scale circulation cooling water is following
During ring, owing to possessing, the water yield is huge, water cycle period is long, and medicament is thoroughly mixed whole water system needs the long period,
The water quality data causing collection is the most delayed and cannot reflect and currently add the actual impact that should cause water quality of medicament, makes
Obtain control system excess and add medicament, cause the drug concentration fluctuation in recirculated cooling water, situation about even exceeding standard.
It is to solve above-mentioned asking by whole recirculating cooling water system founding mathematical models, in advance anticipation being carried out adding of agent
One of effective way of topic.But the method that industry is conventional at present is return pipe drain carries out on-line monitoring, according to detecting number in real time
According to controlling adding and the blowdown of system of medicament.The water cycle period of large-scale recirculating cooling water system is long, adding of agent point
Medicament diffuses to whole recirculated water water body needs the long period, and real-time online detection data exist hysteresis quality, it is impossible to accurately, in time
The water quality condition of the system that reflects, and then have influence on the dosage of adding of agent.Gather data according to delayed water quality and carry out medicine
Agent adds, and directly influences the water quality of recirculated cooling water, additionally also creates the waste of medicament.Traditional water treatment medicine mode
There is certain drawback.Therefore, recirculated cooling water adding of agent needs the most accurate water quality data to process and control mode.
Summary of the invention
The technical problem to be solved in the present invention be in order to overcome on-line checking data in prior art exist hysteresis quality, cannot
Accurately, the water quality condition reflecting system timely and then the defect of the dosage having influence on adding of agent, it is provided that one can root
According to Real-time Collection online data round-off error, make dosage input reported as precisely as possible on-line monitoring anticipation control dosing
System and adding method thereof.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of on-line monitoring anticipation controls medicine system, and this on-line monitoring anticipation controls medicine system for central air-conditioning
The Adding medicine control of recirculating cooling water system, its feature is, this on-line monitoring anticipation controls medicine system and includes: moisturizing and blowdown
Flow monitoring unit, intake-outlet temperature monitoring unit, drug concentration monitoring means, pH value monitoring means, monitored conductivity list
Unit, adding of agent unit, automatic pollution discharge unit, instruction reception unit and control unit, wherein,
This moisturizing and blowdown flow monitoring means for monitor the former water supplemented in this recirculating cooling water system the water yield and
The cooling water water yield discharged；
This intake-outlet temperature monitoring unit is for monitoring water inlet temperature and the outlet temperature of cooling tower；
This drug concentration monitoring means is for monitoring the drug concentration of recirculated cooling water in this recirculating cooling water system；
This pH value monitoring means is for monitoring the pH value of recirculated cooling water in this recirculating cooling water system；
This monitored conductivity unit for monitor recirculated cooling water in this recirculating cooling water system the first electrical conductivity and/or
Second electrical conductivity of this former water；
This automatic pollution discharge unit discharges recirculated cooling water for monitoring from this recirculating cooling water system；
This instruction reception unit is for receiving the medicament intrinsic viscosity of user's input, medicament decomposition coefficient, drug out loss system
Number and correction value weight coefficient；
This control unit is for importing and exporting the temperature difference, the possessing of this recirculating cooling water system according to cooling tower form, cooling tower
The water yield and quantity of circulating water set up static models, and these static models are used for being calculated evaporated water and cycle period；And root
According to this evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decomposition coefficient, this drug out loss coefficient, this correction value
Weight coefficient, the water yield of this former water, the cooling water water yield, this pH value and this drug concentration of discharge set up a dynamic model, and this moves
States model is used for calculating added amount of chemical, and this control unit is additionally operable to control this adding of agent unit and comes according to this added amount of chemical
Dosing.
The present invention solve under traditional control method large-scale circulation chemicals dosing plant because of recirculated water water body huge, medicament
The mixing on-line monitoring that causes of sluggishness is delayed, and causes the inaccurate problem of adding of agent.For this problem newly developed go out one
Towards different circulations, system performance carrying out mathematical modeling in advance, model is set up and is possessed water with recirculating cooling water system
Measure (Qv), system circulating load (Qh), the intake-outlet temperature difference (Td), cooling tower shape formula (X) (such as flowing over, countercurrently), splash and ooze
Water leakage (Qo), system sewerage amount (Qd), system water supplement flow (Qi), online drug concentration (N1), medicament decomposition coefficient
(K1), (intrinsic viscosity refers to the throwing of medicament for drug out loss coefficient (K2), pH value, electrical conductivity (Con), medicament intrinsic viscosity (N3)
Add concentration or run concentration), add the parameters relevant to recirculating cooling water system such as drug concentration (N4) as foundation, by joining
The model that number is set up can calculate the added amount of chemical required for this circulation automatically according to algorithm, thus reduces recirculated water
The fluctuation of change of water quality in system, it is to avoid the situation that change of water quality transfinites occurs, to reach effectively to add, reduces economy and damages
Lose, maintain water quality to be in the purpose in allowed band all the time.
On-line monitoring anticipation in the present invention controls in medicine system:
Moisturizing and blowdown flow monitoring means: large-scale recirculating cooling water system is due to water evaporation, splash loss and blowdown
Etc. mode, consume a large amount of recirculated cooling water, it is therefore desirable to be continuously replenished former water, it is ensured that the water yield of possessing of system is in perseverance all the time
Fixed.
Meanwhile, cycles of concentration is an important indicator of industrial recirculated water, and recirculated cooling water constantly evaporates, cooling water
Cycles of concentration constantly rises, and the hardness in cooling water, basicity can be made the highest, and the fouling tendency of water increases；Ensure to cool down water
Treatment effect, it is necessary to control well cooling water cycles of concentration.Now it is accomplished by discharging, by system highly enriched recirculated cooling water
Automatically adding former water, reduce the cycles of concentration of water body, cycles of concentration is the ratio of recirculated water electrical conductivity and moisturizing electrical conductivity, concentrates
Multiple can produce impact to added amount of chemical, in must be considered in during modeling.
By the electromagnetic type flow meter installed on moisturizing pipeline and blow-off line, carry out flow real-time statistics, be computed
Newly added the water yield and the cooling water water yield the two important parameter of discharge entering recirculated cooling water.
Intake-outlet temperature monitoring unit: circulating cooling water cooling tower is imported and exported the temperature difference and directly influenced cooling water evaporation
Amount, collects cooling tower water inlet temperature (Ti) and outlet temperature (To), according to formula Td=by temperature probe and transmitter
Ti-To, is calculated the temperature difference after cooling water enters cooling tower.
Drug concentration monitoring means: can be detected by fluorescent traccer technique or total phosphorus on-line determination method.This parameter conduct
Regulation one important parameter of anticipation chemical feeding quantity.
PH value monitoring means: use an important parameter of environment as medicament, adding of agent concentration can be directly affected
Set.
System medicament adds unit: large-scale recirculating cooling water system adds medicament the most continuously, in order to control dosing dosage,
Native system uses the dosing pump that flow is controlled.First the system that man machine interface is inputted by Programmable Logic Controller by a series of algorithm
Relevant parameter builds basic mathematical model, substitutes into the dynamic parameter of Real-time Collection the most again to computing in formula, obtains system
Added amount of chemical in the unit interval internal loss pharmaceutical quantities i.e. unit interval, utilizes the drug concentration of monitoring in real time to medicament simultaneously
Dosage is modified, and treated added amount of chemical is converted to regulate diaphragm stroke length or the number of frequency of dosing pump
According to, change added amount of chemical in real time and meet system requirements.
After the most complete cycle period, after gathering the online drug concentration of recirculated cooling water, system is automatic
Calculating the dynamic recoverable amount of medicament of current recirculated cooling water, the added amount of chemical then drawn with anticipation system compares
To, process, after formula operation, obtain system deviation correction factor, then this coefficient substituted in added amount of chemical model, revise
The deviation that current and actual value exists, regulating agent dosage.Owing to current system deviation all can be entered by each blood circulation
Row processes, and after coefficient correction for several times, mathematical model eventually calculates an added amount of chemical so that drug concentration is all the time
It is in stable state, it is achieved the accurate control of adding of agent.
Automatic pollution discharge unit: the cooling water conductivity monitored in real time by monitored conductivity unit is foundation, to current
Cooling water concentration rate compares with the cycles of concentration scope of permission, if going beyond the scope, automatic control system blowdown, reduces
Cooling water cycles of concentration is to reasonable value.
Preferably, this control unit for calculating according to the drug concentration of this drug concentration monitoring means Real-time Collection,
Calibrate this correction value weight coefficient.
Preferably, this control unit is for calculating this according to the drug concentration of this drug concentration monitoring means Real-time Collection
Medicament recoverable amount in recirculating cooling water system also compares with the added amount of chemical of a upper cycle period to revise this correction value power
Weight coefficient.
Preferably, this evaporation capacity is calculated by below equation: evaporation capacity=k × IT × Qr, and wherein k is a temperature system
Number, IT is that the temperature difference imported and exported by cooling tower, and Qr is this quantity of circulating water.
Preferably, this added amount of chemical is calculated by below equation:
Added amount of chemical=medicament spatter loss amount+medicament blowdown loss amount+medicament decomposition loss amount+drug out loss amount+
Correction chemical feeding quantity, wherein,
The water yield-(the cooling water water yield of evaporation capacity+discharge) of the former water of the loss water yield=supplementary of splashing
The medicament spatter loss amount=spatter loss water yield × medicament intrinsic viscosity
The cooling water water yield × medicament intrinsic viscosity of medicament blowdown loss amount=discharge
Medicament decomposes loss amount=medicament decomposition coefficient × medicament recoverable amount
Medicament normal loss amount=drug out loss coefficient × medicament recoverable amount
Revise chemical feeding quantity=correction value weight coefficient × (drug concentration-adding of agent concentration) × recirculating cooling water system
Possess the water yield.
Preferably, this control unit is used for calculating the cycles of concentration of recirculated cooling water in this recirculating cooling water system, and
Controlling this automatic pollution discharge unit when this cycles of concentration reaches a threshold value and discharge recirculated cooling water, this cycles of concentration is this first electricity
Conductance and the ratio of this second electrical conductivity.
Preferably, this recirculating cooling water system includes moisturizing pipeline and blow-off line, and this moisturizing and blowdown flow monitoring are single
Unit includes the electromagnetic type flow meter being arranged on this moisturizing pipeline and this blow-off line, for the water of the former water that real-time statistics is supplemented
Amount and the cooling water water yield discharged.
Preferably, this drug concentration is monitored by fluorescent traccer technique or total phosphorus on-line determination method.
The dosage of anticipation type adding of agent is possessed the water yield based on recirculating cooling water system and is in steady state value all the time.By thus follow
Ring cooling water regards as an entirety, below can be seen that the impact on water quality of each factor.
Based on conditions above, it is assumed that recirculated cooling water is not carried out moisturizing, individually consider that each factor is on the impact of system such as
Under:
| Evaporation | Splashing seepage | Blowdown | Moisturizing | Medicament decomposes | Drug out loss | |
| Drug concentration | Rise | Constant | Constant | Decline | Decline | Decline |
But in actual motion, system need to be continuously replenished former water, possess the constant of the water yield, respectively because of procatarxis system water supplement pair
The actual influence of water quality is as follows:
| Evaporation | Splash | Blowdown | Medicament decomposes | Drug out loss |
| Drug concentration | Constant | Decline | Decline | Decline | Decline |
It may be concluded that recirculated cooling water reagent consumption mainly due to drug out loss, medicament decompose, splash loss and
Blowdown loss causes.
Owing to splashing and water amount of seepage can not be surveyed, need to first set up recirculated cooling water static models, measuring and calculating is splashed and percolating water
The theoretical value of amount.These static models import and export temperature difference design with Design of Circulating Cooling Water System parameter cooling tower form, cooling tower
Value, possess the water yield and quantity of circulating water is basic parameter, available evaporation capacity and the theoretical value of cycle period after being computed.
According to above-mentioned analysis, the present invention also provides for a kind of adding method thereof, and its feature is, it uses as above online
Monitoring anticipation controls medicine system and realizes, and this adding method thereof comprises the following steps:
Step S1, this moisturizing and blowdown flow monitoring means monitor the water yield of the former water supplemented in this recirculating cooling water system
With the cooling water water yield discharged；The water inlet temperature of this intake-outlet temperature monitoring unit monitoring cooling tower and outlet temperature；
This drug concentration monitoring means monitors the drug concentration of recirculated cooling water in this recirculating cooling water system；This pH value monitoring means is supervised
Survey the pH value of recirculated cooling water in this recirculating cooling water system；This monitored conductivity unit is monitored in this recirculating cooling water system and is followed
First electrical conductivity of ring cooling water and/or the second electrical conductivity of this former water；This automatic pollution discharge unit is from this recirculating cooling water system
Middle discharge recirculated cooling water；This instruction reception unit receives the medicament intrinsic viscosity of user's input, medicament decomposition coefficient, medicament damage
Consumption coefficient and correction value weight coefficient；
Step S2, this control unit according to cooling tower form, cooling tower import and export the temperature difference, the guarantor of this recirculating cooling water system
The water yield and quantity of circulating water is had to set up this static models；
Step S3, this control unit according to this evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decompose
Coefficient, this drug out loss coefficient, this correction value weight coefficient, the water yield of this former water, the cooling water water yield of discharge, this pH value and should
Drug concentration is set up this dynamic model and calculates this added amount of chemical；
Step S4, according to the dosing in this recirculating cooling water system of this added amount of chemical.
Preferably, step S4The most also include: this control unit is according to the medicine of this drug concentration monitoring means Real-time Collection
Agent concentration calculates, calibrates this correction value weight coefficient.
Preferably, step S4The most also include: this control unit is according to the medicine of this drug concentration monitoring means Real-time Collection
Agent concentration calculates the medicament recoverable amount in this recirculating cooling water system and the added amount of chemical with a upper cycle period compare with
Revise this correction value weight coefficient.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, obtain each preferable reality of the present invention
Example.
The most progressive effect of the present invention is:
The equipment of the present invention is essentially identical with the composition of tradition medicament addition device, and medicament addition device is not significantly increased
Cost.Focus on adding model anticipation software, optimize system medicament and add.
The overshoot of recirculated cooling water drug concentration, the problem of fluctuation when the present invention solves legacy system adding of agent,
Decrease the waste of medicament, reduce operating cost.
The present invention improves the stability of recirculated cooling water drug concentration, it is ensured that the effectiveness in medicament cyclic process,
Guarantee the projected life of recirculated cooling water pipeline.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the on-line monitoring anticipation control medicine system of one embodiment of the invention.
Fig. 2 is the flow chart of the adding method thereof of one embodiment of the invention.
Fig. 3 is existing adding method thereof Chinese medicine concentration schematic diagram over time.
Fig. 4 is the adding method thereof Chinese medicine concentration schematic diagram over time of the present invention.
Detailed description of the invention
Further illustrate the present invention below by the mode of embodiment, but the most therefore limit the present invention to described reality
Execute among example scope.The experimental technique of unreceipted actual conditions in the following example, conventionally selects with condition.
The invention provides a kind of recirculated water on-line monitoring anticipation and control medicine system.Build by system is carried out mathematics
Mould, inputs important water quality parameter and affects the parameter of system medicament concentration, then carrying out pre-according to on-line monitoring the data obtained
Sentence Data Revision computing, and then accurately control added amount of chemical.
For the simplicity being hereinafter described, first place of matchmakers relates to parameter, as follows:
1. system possesses the water yield (Qv) 2. system quantity of circulating water (Qh) 3. cooling tower import and export temperature difference design value (Ti, To) 4.
Cooling tower shape formula (X) 5. is splashed and water amount of seepage (Qs) 6. system sewerage amount (Qd) 7. system water supplement flow (Qi) 8. online medicine
Agent concentration (N1) 9. medicament intrinsic viscosity (N2) 10. medicament decomposition coefficient (K1) 11. drug out loss coefficient (K2) 12. correction value is weighed
Weight coefficient (K3) 13.pH value 14. electrical conductivity (Con)
With reference to Fig. 1-Fig. 4, on-line monitoring anticipation of the present invention controls medicine system 1, and this on-line monitoring anticipation controls
Medicine system 1 is for the Adding medicine control of the recirculating cooling water system of central air-conditioning, comprising: moisturizing and blowdown flow monitoring means
11, intake-outlet temperature monitoring unit 12, drug concentration monitoring means 13, pH value monitoring means 14, monitored conductivity unit 15,
Adding of agent unit 16, automatic pollution discharge unit 17, instruction reception unit 18 and control unit 19, wherein, this instruction reception unit
18 and control unit 19 can be a man machine interface in implementing and a PLC (programmable logic controller (PLC)) realizes, tool
For body,
This moisturizing and blowdown flow monitoring means 11 are for monitoring the water yield of the former water supplemented in this recirculating cooling water system
With the cooling water water yield discharged；
This intake-outlet temperature monitoring unit 12 is for monitoring water inlet temperature and the outlet temperature of cooling tower；
This drug concentration monitoring means 13 is for monitoring the drug concentration of recirculated cooling water in this recirculating cooling water system；
This pH value monitoring means 14 is for monitoring the pH value of recirculated cooling water in this recirculating cooling water system；
This monitored conductivity unit 15 for monitor recirculated cooling water in this recirculating cooling water system the first electrical conductivity and/
Or the second electrical conductivity of this former water；
This automatic pollution discharge unit 17 discharges recirculated cooling water for monitoring from this recirculating cooling water system；
This instruction reception unit 18 is for receiving the medicament intrinsic viscosity of user's input, medicament decomposition coefficient, drug out loss
Coefficient and correction value weight coefficient；
This control unit 19 is for importing and exporting the temperature difference, the guarantor of this recirculating cooling water system according to cooling tower form, cooling tower
Having the water yield and quantity of circulating water to set up static models, these static models are used for being calculated evaporated water and cycle period；And
According to this evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decomposition coefficient, this drug out loss coefficient, this correction
Value weight coefficient, the water yield of this former water, the cooling water water yield, this pH value and this drug concentration of discharge set up a dynamic model, should
Dynamic model is used for calculating added amount of chemical, and this control unit is additionally operable to control this adding of agent unit 16 according to this adding of agent
Amount carrys out dosing.
The present invention solve under traditional control method large-scale circulation chemicals dosing plant because of recirculated water water body huge, medicament
The mixing on-line monitoring that causes of sluggishness is delayed, and causes the inaccurate problem of adding of agent.For this problem newly developed go out one
Towards different circulations, system performance carrying out mathematical modeling in advance, model is set up and is possessed water with recirculating cooling water system
Measure (Qv), system circulating load (Qh), the intake-outlet temperature difference (Td), cooling tower shape formula (X) (such as flowing over, countercurrently), splash and ooze
Water leakage (Qo), system sewerage amount (Qd), system water supplement flow (Qi), online drug concentration (N1), medicament decomposition coefficient
(K1), (intrinsic viscosity refers to the throwing of medicament for drug out loss coefficient (K2), pH value, electrical conductivity (Con), medicament intrinsic viscosity (N3)
Add concentration or run concentration), add the parameters relevant to recirculating cooling water system such as drug concentration (N4) as foundation, by joining
The model that number is set up can calculate the added amount of chemical required for this circulation automatically according to algorithm, thus reduces recirculated water
The fluctuation of change of water quality in system, it is to avoid the situation that change of water quality transfinites occurs, to reach effectively to add, reduces economy and damages
Lose, maintain water quality to be in the purpose in allowed band all the time.
In order to accurately control adding of medicament, this control unit is for according to this drug concentration monitoring means Real-time Collection
Drug concentration calculates, calibrates this correction value weight coefficient.
In order to more accurately control adding of medicament, eliminating as much as calculating error, this control unit is for according to being somebody's turn to do
The drug concentration of drug concentration monitoring means Real-time Collection calculates the medicament recoverable amount in this recirculating cooling water system and with upper
The added amount of chemical of one cycle period compares to revise this correction value weight coefficient.
Specifically, this evaporation capacity is calculated by below equation: evaporation capacity=kxIT × Qr, and wherein k is a temperature system
Number, IT is that the temperature difference imported and exported by cooling tower, and Qr is this quantity of circulating water.
More specifically, this added amount of chemical is calculated by below equation:
Added amount of chemical=medicament spatter loss amount+medicament blowdown loss amount+medicament decomposition loss amount+drug out loss amount+
Correction chemical feeding quantity, wherein,
The water yield-(the cooling water water yield of evaporation capacity+discharge) of the former water of the loss water yield=supplementary of splashing
The medicament spatter loss amount=spatter loss water yield × medicament intrinsic viscosity
The cooling water water yield × medicament intrinsic viscosity of medicament blowdown loss amount=discharge
Medicament decomposes loss amount=medicament decomposition coefficient × medicament recoverable amount
Medicament normal loss amount=drug out loss coefficient × medicament recoverable amount
Revise chemical feeding quantity=correction value weight coefficient × (drug concentration-adding of agent concentration) × recirculating cooling water system
Possess the water yield.
In order to ensure the water quality of the cooling water of this circulation, this control unit is used for calculating in this recirculating cooling water system circulation
The cycles of concentration of cooling water, and this automatic pollution discharge unit discharge circulating cooling is controlled when this cycles of concentration reaches a threshold value
Water, this cycles of concentration is the ratio of this first electrical conductivity and this second electrical conductivity.
It addition, this recirculating cooling water system includes moisturizing pipeline and blow-off line, this moisturizing and blowdown flow monitoring means
Including the electromagnetic type flow meter being arranged on this moisturizing pipeline and this blow-off line, for the water yield of the former water that real-time statistics is supplemented
With the cooling water water yield discharged.
Preferably, this drug concentration is monitored by fluorescent traccer technique or total phosphorus on-line determination method.
For a more typical example, on-line monitoring anticipation of the present invention controls medicine system by with lower part group
Become:
Wherein, PT100 represents platinum resistance thermometer sensor, and its resistance can change along with the change of temperature.After PT 100 i.e. represent
Its resistance when 0 ° of C is 100 ohm.In SS304, SS refers to rustless steel, and 304 is the rustless steel trade mark.
Adding method thereof of the present invention, uses on-line monitoring anticipation as above to control medicine system and realizes, and this adds
Prescription method comprises the following steps:
Step S1, various parameters needed for collection, specifically, this moisturizing and blowdown flow monitoring means monitor this circulation
The water yield of the former water supplemented in cooling water system and the cooling water water yield of discharge；The monitoring cooling of this intake-outlet temperature monitoring unit
The water inlet temperature of tower and outlet temperature；This drug concentration monitoring means monitors recirculated cooling water in this recirculating cooling water system
Drug concentration；This pH value monitoring means monitors the pH value of recirculated cooling water in this recirculating cooling water system；This monitored conductivity
Unit monitors the first electrical conductivity of recirculated cooling water in this recirculating cooling water system and/or the second electrical conductivity of this former water；Should be certainly
Dynamic blowdown unit discharges recirculated cooling water from this recirculating cooling water system；This instruction reception unit receives the medicament of user's input
Intrinsic viscosity, medicament decomposition coefficient, drug out loss coefficient and correction value weight coefficient；
Step S2, this control unit according to cooling tower form, cooling tower import and export the temperature difference, the guarantor of this recirculating cooling water system
The water yield and quantity of circulating water is had to set up this static models；
Step S3, this control unit according to this evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decompose
Coefficient, this drug out loss coefficient, this correction value weight coefficient, the water yield of this former water, the cooling water water yield of discharge, this pH value and should
Drug concentration is set up this dynamic model and calculates this added amount of chemical；
Step S4, according to the dosing in this recirculating cooling water system of this added amount of chemical.
Below in conjunction with Fig. 3 and Fig. 4, sketch the technique effect of the present invention.
The schematic diagram that Fig. 3 and Fig. 4 is drawn by the data recorded in same large-scale recirculating cooling water system.
Tradition water processing mode as can be seen from Figure 3, water to water body after water quality index monitoring and adding of agent process
Matter impact all has suitable hysteresis quality, even water quality index beyond the high and low limits value arranged, and the system that causes of persistence is adjusted
Save delayed and overshoot.
And as can be seen from Figure 4 can based on on-line monitoring anticipation of the present invention control medicine system and adding method thereof
So that system water quality situation Real-time Monitoring Data is modified, the added amount of chemical needed for regulation system, and in good time according to water
Matter situation carries out blowdown.
The realization of dosing dosage anticipation of the present invention mechanism, after setting up anticipation mechanism, on this basis, with online
The data of monitoring revise anticipation value by a small margin, finally make the drug concentration of system and water stabilization within the specific limits.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that these
Being merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of the principle and essence of the present invention, these embodiments can be made various changes or modifications, but these change
Protection scope of the present invention is each fallen within amendment.
Claims (11)
1. on-line monitoring anticipation controls a medicine system, and this on-line monitoring anticipation controls medicine system following for central air-conditioning
The Adding medicine control of ring cooling water system, it is characterised in that this on-line monitoring anticipation controls medicine system and includes: moisturizing and blowdown stream
Amount monitoring means, intake-outlet temperature monitoring unit, drug concentration monitoring means, pH value monitoring means, monitored conductivity unit,
Adding of agent unit, automatic pollution discharge unit, instruction reception unit and control unit, wherein,
This moisturizing and blowdown flow monitoring means are for monitoring the water yield and the discharge of the former water supplemented in this recirculating cooling water system
The cooling water water yield；
This intake-outlet temperature monitoring unit is for monitoring water inlet temperature and the outlet temperature of cooling tower；
This drug concentration monitoring means is for monitoring the drug concentration of recirculated cooling water in this recirculating cooling water system；
This pH value monitoring means is for monitoring the pH value of recirculated cooling water in this recirculating cooling water system；
This monitored conductivity unit is used for monitoring the first electrical conductivity of recirculated cooling water in this recirculating cooling water system and/or this is former
Second electrical conductivity of water；
This automatic pollution discharge unit discharges recirculated cooling water for monitoring from this recirculating cooling water system；
This instruction reception unit for receive user input medicament intrinsic viscosity, medicament decomposition coefficient, drug out loss coefficient and
Correction value weight coefficient；
This control unit for according to cooling tower form, cooling tower import and export the temperature difference, this recirculating cooling water system possess the water yield
Setting up static models with quantity of circulating water, these static models are used for being calculated evaporated water and cycle period；And according to this
Evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decomposition coefficient, this drug out loss coefficient, this correction value weight
Coefficient, the water yield of this former water, the cooling water water yield, this pH value and this drug concentration of discharge set up a dynamic model, this dynamic analog
Type is used for calculating added amount of chemical, and this control unit is additionally operable to control this adding of agent unit and adds according to this added amount of chemical
Medicine.
2. on-line monitoring anticipation as claimed in claim 1 controls medicine system, it is characterised in that this control unit is used for basis
The drug concentration of this drug concentration monitoring means Real-time Collection calculates, calibrates this correction value weight coefficient.
3. on-line monitoring anticipation as claimed in claim 1 controls medicine system, it is characterised in that this control unit is used for basis
The drug concentration of this drug concentration monitoring means Real-time Collection calculate the medicament recoverable amount in this recirculating cooling water system and with
The added amount of chemical of a upper cycle period compares to revise this correction value weight coefficient.
4. on-line monitoring anticipation as claimed in claim 1 controls medicine system, it is characterised in that this evaporated water is by following
Formula is calculated: evaporated water=k × IT × Qr, and wherein k is a temperature coefficient, and IT is that the temperature difference imported and exported by cooling tower, and Qr is
This quantity of circulating water.
5. on-line monitoring anticipation as claimed in claim 1 controls medicine system, it is characterised in that this added amount of chemical by with
Lower formula is calculated:
Added amount of chemical=medicament spatter loss amount+medicament blowdown loss amount+medicament decomposes loss amount+drug out loss amount+correction
Chemical feeding quantity, wherein,
The water yield (the cooling water water yield of evaporated water+discharge) of the former water of the loss water yield=supplementary of splashing
The medicament spatter loss amount=spatter loss water yield × medicament intrinsic viscosity
The cooling water water yield × medicament intrinsic viscosity of medicament blowdown loss amount=discharge
Medicament decomposes loss amount=medicament decomposition coefficient × medicament recoverable amount
Medicament normal loss amount=drug out loss coefficient × medicament recoverable amount
Revise possessing of chemical feeding quantity=correction value weight coefficient × (drug concentration adding of agent concentration) × recirculating cooling water system
The water yield.
6. the on-line monitoring anticipation as described in any one in claim 1-5 controls medicine system, it is characterised in that this control
Unit is for calculating the cycles of concentration of recirculated cooling water in this recirculating cooling water system, and reaches a threshold value at this cycles of concentration
Time control this automatic pollution discharge unit discharge recirculated cooling water, this cycles of concentration is the ratio of this first electrical conductivity and this second electrical conductivity
Value.
7. the on-line monitoring anticipation as described in any one in claim 1-5 controls medicine system, it is characterised in that this circulation
Cooling water system includes moisturizing pipeline and blow-off line, and this moisturizing and blowdown flow monitoring means include being arranged at this moisturizing pipeline
With the electromagnetic type flow meter on this blow-off line, the water yield of former water supplemented for real-time statistics and the cooling water water yield of discharge.
8. the on-line monitoring anticipation as described in any one in claim 1-5 controls medicine system, it is characterised in that by glimmering
Light tracer method or total phosphorus on-line determination method monitor this drug concentration.
9. an adding method thereof, it is characterised in that it uses the on-line monitoring anticipation as described in any one in claim 1-8
Controlling medicine system to realize, this adding method thereof comprises the following steps:
Step S1, this moisturizing and blowdown flow monitoring means monitor the water yield and the row of the former water supplemented in this recirculating cooling water system
The cooling water water yield gone out；The water inlet temperature of this intake-outlet temperature monitoring unit monitoring cooling tower and outlet temperature；This medicine
Agent concentration monitoring means monitors the drug concentration of recirculated cooling water in this recirculating cooling water system；The monitoring of this pH value monitoring means should
The pH value of recirculated cooling water in recirculating cooling water system；This monitored conductivity unit monitor this recirculating cooling water system circulates cold
But the first electrical conductivity of water and/or the second electrical conductivity of this former water；This automatic pollution discharge unit is arranged from this recirculating cooling water system
Go out recirculated cooling water；This instruction reception unit receives the medicament intrinsic viscosity of user's input, medicament decomposition coefficient, drug out loss system
Number and correction value weight coefficient；
Step S2, this control unit according to cooling tower form, cooling tower import and export the temperature difference, this recirculating cooling water system possess water
Amount and quantity of circulating water set up this static models；
Step S3, this control unit according to this evaporated water, this cycle period, this medicament intrinsic viscosity, this medicament decomposition coefficient,
This drug out loss coefficient, this correction value weight coefficient, the water yield of this former water, the cooling water water yield, this pH value and this medicament of discharge
Concentration is set up this dynamic model and calculates this added amount of chemical；
Step S4, according to the dosing in this recirculating cooling water system of this added amount of chemical.
10. adding method thereof as claimed in claim 9, it is characterised in that step S4The most also include: this control unit is according to being somebody's turn to do
The drug concentration of drug concentration monitoring means Real-time Collection calculates, calibrates this correction value weight coefficient.
11. adding method thereofs as claimed in claim 9, it is characterised in that step S4The most also include: this control unit is according to being somebody's turn to do
The drug concentration of drug concentration monitoring means Real-time Collection calculates the medicament recoverable amount in this recirculating cooling water system and with upper
The added amount of chemical of one cycle period compares to revise this correction value weight coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210594256.0A CN103912955B (en) | 2012-12-31 | 2012-12-31 | Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210594256.0A CN103912955B (en) | 2012-12-31 | 2012-12-31 | Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912955A CN103912955A (en) | 2014-07-09 |
| CN103912955B true CN103912955B (en) | 2016-08-10 |
Family
ID=51038834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210594256.0A Active CN103912955B (en) | 2012-12-31 | 2012-12-31 | Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912955B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105988378A (en) * | 2015-01-30 | 2016-10-05 | 上海洗霸科技股份有限公司 | Circulating cooling water control system and drug adding control device and drug adding control method thereof |
| CN106052018B (en) * | 2016-05-28 | 2018-12-21 | 双良节能系统股份有限公司 | Central air-conditioner cooling water dosing O&M control system and its control method |
| CN109157965A (en) * | 2018-09-25 | 2019-01-08 | 深圳市高德威技术有限公司 | The fume purifier of fume of scavenging solution concentration real time monitoring adjustment |
| CN110092488A (en) * | 2019-04-28 | 2019-08-06 | 导洁(北京)环境科技有限公司 | The method for treating water of heating and ventilating equipment based on Internet of Things intelligent management band refrigeration |
| CN112010405B (en) * | 2020-08-28 | 2022-11-08 | 河南省科学院能源研究所有限公司 | Water treatment comprehensive control treatment method for cooling circulating water of central air conditioner |
| CN112180858B (en) * | 2020-09-21 | 2024-04-26 | 河南华东工控技术有限公司 | Control method of multi-pollution-source wastewater classification treatment system based on big data |
| CN114279006A (en) * | 2020-09-27 | 2022-04-05 | 中兴通讯股份有限公司 | Refrigeration control method and device, indirect evaporative cooling air conditioner and storage medium |
| CN112415965A (en) * | 2020-11-16 | 2021-02-26 | 华能碳资产经营有限公司 | Circulating water digital online monitoring control device and method |
| CN113461087B (en) * | 2021-08-17 | 2022-10-21 | 北京首创生态环保集团股份有限公司 | Economical water plant drug consumption monitoring system |
| CN114415585A (en) * | 2021-12-29 | 2022-04-29 | 戚明喆 | Central air conditioning cooling water concentration multiple control system |
| CN113996446B (en) * | 2021-12-31 | 2022-04-12 | 天津美腾科技股份有限公司 | Concentration dosing system and concentration dosing method |
| CN114436449B (en) * | 2022-02-22 | 2023-06-30 | 江苏舜维环境工程有限公司 | Waste heat power generation circulating water treatment device |
| CN117234141B (en) * | 2023-11-16 | 2024-03-01 | 墨之道(山东)测控设备有限公司 | Automatic control system and control method for circulating cooling water treatment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343664A (en) * | 1971-12-08 | 1974-01-16 | Parker Engineered Chemicals | Cooling tower water treatment system |
| CN1514248A (en) * | 2003-03-20 | 2004-07-21 | 北京科技大学 | Circulating cooling water quality monitoring system and equipment |
| CN1712143A (en) * | 2004-06-25 | 2005-12-28 | 上海万森水处理有限公司 | Cleaning method of circulating water system |
| CN1903746A (en) * | 2005-07-27 | 2007-01-31 | 王炜 | Heat resistance real time on line monitoring control device of fouling and its method |
| CN201952271U (en) * | 2011-01-27 | 2011-08-31 | 贵州天睿水处理节能有限公司 | Intelligent water treatment device |
| CN202024442U (en) * | 2011-03-14 | 2011-11-02 | 苏州英特工业水处理工程有限公司 | Circulated water remote chemical feeding system of central air conditioning unit |
| CN202631516U (en) * | 2012-07-04 | 2012-12-26 | 天津中天海盛环保科技有限公司 | Circulating cooling water quality monitoring and chemical-dosing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002159962A (en) * | 2000-11-24 | 2002-06-04 | Hakuto Co Ltd | System for controlling injection of water treating chemical in circulating water system |
-
2012
- 2012-12-31 CN CN201210594256.0A patent/CN103912955B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343664A (en) * | 1971-12-08 | 1974-01-16 | Parker Engineered Chemicals | Cooling tower water treatment system |
| CN1514248A (en) * | 2003-03-20 | 2004-07-21 | 北京科技大学 | Circulating cooling water quality monitoring system and equipment |
| CN1712143A (en) * | 2004-06-25 | 2005-12-28 | 上海万森水处理有限公司 | Cleaning method of circulating water system |
| CN1903746A (en) * | 2005-07-27 | 2007-01-31 | 王炜 | Heat resistance real time on line monitoring control device of fouling and its method |
| CN201952271U (en) * | 2011-01-27 | 2011-08-31 | 贵州天睿水处理节能有限公司 | Intelligent water treatment device |
| CN202024442U (en) * | 2011-03-14 | 2011-11-02 | 苏州英特工业水处理工程有限公司 | Circulated water remote chemical feeding system of central air conditioning unit |
| CN202631516U (en) * | 2012-07-04 | 2012-12-26 | 天津中天海盛环保科技有限公司 | Circulating cooling water quality monitoring and chemical-dosing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912955A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912955B (en) | Central air conditioning water system on-line monitoring anticipation controls medicine system and application thereof | |
| CN207294409U (en) | A kind of recirculated cooling water antiscale automatic medicine adding apparatus | |
| CN106091797B (en) | Large capacity circulating cooling water tower mends water discharge method and system | |
| CN201859334U (en) | Control system for automatic dosing in industrial circulating water and water stabilization | |
| CN102004461A (en) | Industrial circulating water automatic feeding and water quality stability control method and control system | |
| CN106277383A (en) | A kind of aeration control system based on oxygen consumption rate analyzer and method | |
| CN105717054B (en) | The detection method of anti-incrustation corrosion inhibitor concentration, detection device and circulating water cooling treatment control system in on-line checking recirculated cooling water | |
| CN104238527A (en) | Precise control method of sewage treatment plant aeration total quantity | |
| CN106082430A (en) | A kind of aeration control system and aeration control method | |
| CN105953840A (en) | Dual-channel industrial circulating cooling water dynamic simulation teat bench | |
| CN105988378A (en) | Circulating cooling water control system and drug adding control device and drug adding control method thereof | |
| CN201273899Y (en) | Evaluation test apparatus for cyclic water scale inhibitor | |
| CN109931801B (en) | Automatic water supplementing system and water supplementing method for circulating cooling water tower pool of thermal power plant | |
| CN104216362A (en) | Full-automatic online water quality monitoring system of circulating cooling water | |
| CN103324222A (en) | Heat pump laboratory temperature and humidity control and energy dissipation efficiency testing system and method | |
| CN111551482A (en) | Comprehensive dynamic water corrosion test device with high-temperature and high-pressure one-loop and two-loop linkage operation | |
| CN104571164B (en) | Online concentration multiple control method and device | |
| CN204999750U (en) | On -line monitoring centralized control that refrigeration cycle is wateriness adds medicine blowdown control system | |
| CN206199212U (en) | New difficult dissolved powders throwing device | |
| Zhang et al. | Parameters online detection and model predictive control during the grain drying process | |
| CN116578124A (en) | Economical sewage dephosphorization control system based on machine learning | |
| CN112214044B (en) | Circulating water automatic control system and method based on total amount control | |
| CN216117577U (en) | Quick evaluation device of recirculated cooling water quality stabilizer dirt effect | |
| CN210036410U (en) | Automatic water replenishing system for circulating cooling water tower pool of thermal power plant | |
| CN204705908U (en) | A kind of recirculated water cycles of concentration accuracy-control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHANGHAI EMPEROR OF CLEANING TECH. CO., LTD. Effective date: 20150204 Owner name: SHANGHAI EMPEROR OF CLEANING TECH. CO., LTD. Free format text: FORMER OWNER: WANG WEI Effective date: 20150204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150204 Address after: 200437 5F, B, Bai Shu Building, No. 1230, Bei Bei Road, Hongkou District, Shanghai, Zhongshan Applicant after: Shanghai Emperor of Cleaning Tech Co., Ltd. Address before: 200437 5F, B, Bai Shu Building, No. 1230, Bei Bei Road, Hongkou District, Shanghai, Zhongshan Applicant before: Wang Wei Applicant before: Shanghai Emperor of Cleaning Tech Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |