CN104001686A - Method for keeping constant concentration of washing agents of washing machine - Google Patents
Method for keeping constant concentration of washing agents of washing machine Download PDFInfo
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- CN104001686A CN104001686A CN201410216832.7A CN201410216832A CN104001686A CN 104001686 A CN104001686 A CN 104001686A CN 201410216832 A CN201410216832 A CN 201410216832A CN 104001686 A CN104001686 A CN 104001686A
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- concentration
- cleaning agent
- setting
- deviation ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a method for keeping the constant concentration of washing agents of a washing machine. The method includes the following steps: (1) measuring the current concentration of the washing agents in a working groove of the washing machine, (2) inputting the current measured concentration into a controller, and comparing the current concentration with the process expectation concentration to obtain an actual deviation ratio, (3) storing a plurality of set deviation ratios within different numerical value scopes in a controller in advance, wherein a washing agent set compensation amount used for recovering the concentration of the washing agents in the washing machine to the process expectation concentration is correspondingly stored in each set deviation ratio; comparing the actual deviation ratio obtained in the step (2) with the set deviation ratios, selecting the set compensation amount corresponding to the set deviation ratio to serve as the actual compensation amount when the numerical value of the set compensation amount is within the numerical range scope of the set deviation ratio, and (4) adding the washing agents in the working groove of the washing machine according to the actual compensation amount. All the steps are sequentially and continuously executed.
Description
Technical field
The present invention relates to a kind of a kind of method, particularly method of the cleaning agent constant concentration that keeps cleaning machine that keeps the constant concentration that continues the medicament consuming.
Background technology
All there is concentration consumption in producing in the chemical reactions such as industry cleaning link, phosphatization processing and plating, need to supplement medicament and make drug concentration constant in technique concentration.In prior art, normally, by after the current drug concentration value of manual measurement, calculate addition according to the reduction value of current concentration and technique concentration, then add.This traditional adding method not only needs technical professional to go management, and operating process is loaded down with trivial details, influence factor is many, easily make mistakes.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of cleaning agent constant concentration method that keeps cleaning machine, it can add cleaning agent automatically maintains in the concentration range of technique permission the concentration of cleaning machine all the time, easy to operate.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A method that keeps the cleaning agent constant concentration of cleaning machine, it comprises the following steps:
The current concentration of cleaning agent in A, measurement cleaning machine work nest;
B, by the current concentration input control device recording, controller expects that by current concentration and technique concentration ratio draws actual deviation rate;
C, controller prestores the setting deviation ratio of multiple different number ranges, the union of the number range of multiple setting deviation ratios is { be more than or equal to zero and be less than or equal to the maximum deflection difference value of cleaning agent concentration that cleaning machine allows }, each setting deviation ratio stores respectively a cleaning agent setting compensation amount of expecting concentration for the concentration of cleaning machine cleaning agent being returned to technique under this setting deviation ratio accordingly, setting compensation amount is more than or equal to zero, the actual deviation rate drawing of step B and each setting deviation ratio are made comparisons, in the time that the numerical value of actual deviation rate belongs to the number range of one of them setting deviation ratio, the selected corresponding setting compensation amount of this setting deviation ratio is actual compensation rate,
D, in cleaning machine work nest, add cleaning agent by actual compensation rate;
Above-mentioned steps A～D carries out successively and cyclically.
Preferably, pre-determine dosing interval time according to the speed of cleaning agent consumption in cleaning machine work nest, to be that step D is every to the endless form of D carry out once through a dosing interval time steps A.
More preferably, to be steps A to the endless form of D carry out after once adding cleaning agent upper steps A after the described dosing half of interval time.
Preferably, the setting value that controller prestores is non-linear relation.
More preferably, the described setting deviation ratio that controller prestores is five.
Preferably, described controller is PLC controller.
The present invention adopts above structure, tool has the following advantages: draw deviation ratio by controller according to the current concentration of the cleaning agent that detects and control charging valve conducting to additional clean medicament in cleaning machine work nest, without being set, technical professional goes management, and can be according to the predefined program auto feed of controller; According to the selected pre-stored setting compensation amount corresponding with it of the deviation drawing, control the amount of charging valve interpolation cleaning agent according to setting compensation amount, the control and the control method that are easy to realize charging valve are more simple precisely, avoid because each addition is all different and set continually and change the control program of charging valve.
Brief description of the drawings
Fig. 1 is cleaning agent change in concentration figure in cleaning machine work nest in the first situation;
Fig. 2 is cleaning agent change in concentration figure in cleaning machine work nest in the second situation;
Fig. 3 is cleaning agent change in concentration figure in cleaning machine work nest in the third situation.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be those skilled in the art will recognize that, protection scope of the present invention is made to more explicit defining.The percentage of below addressing is mass percent, in the time that the density of medicament and water approach, also can be percent volume to volume.
The technique of the cleaning agent in the work nest of cleaning machine expects that concentration (process set value) is 8%, the deviation range allowing is 7.2%～8% (maximum deviation≤± 10%), dosing interval time is 2 hours, every dosing in 2 hours once.Cleaning agent compensation rate is divided into Pyatyi, the pre-stored setting value that has five compensation rates in PLC controller, the setting compensation amount in table be current concentration in the cleaning machine work nest recording be that benchmark needs the drug concentration adding.And on the operation interface of PLC controller, be respectively arranged with five with five buttons that setting compensation amount is corresponding, as shown in table 1.
Table 1
A cleaning agent constant concentration method that keeps cleaning machine, it comprises the following steps.
Operating personnel measure the current concentration of cleaning agent in cleaning machine work nest.
By the current concentration input PLC controller recording, PLC controller expects that by current concentration and technique concentration 8% relatively draws actual deviation rate.
PLC controller prestores the setting deviation ratio of five different number ranges, be respectively≤0.6%, 0.6%～1.9%, 1.9%～2.5%, 2.5%～6.3%, 6.3%～10%, the union of five number ranges of setting deviation ratios is { be more than or equal to zero and be less than or equal to the maximum deflection difference value of cleaning agent concentration that cleaning machine allows }, and the number range of each setting deviation ratio should be for continuous and be the trend progressively increasing.Each setting deviation ratio stores respectively a cleaning agent setting compensation amount of expecting concentration 8% for the concentration of cleaning machine cleaning agent being returned to technique under this setting deviation ratio accordingly, setting compensation amount is more than or equal to zero, the actual deviation rate drawing of step B and each setting deviation ratio are made comparisons, in the time that the numerical value of actual deviation rate belongs to the number range of one of them setting deviation ratio, the selected corresponding setting compensation amount of this setting deviation ratio is actual compensation rate.
PLC controls the charging valve conducting between cleaning agent storage tank and cleaning machine work nest, adds cleaning agent by actual compensation rate in cleaning machine work nest.As long as press a corresponding button after operating personnel measure, PLC controller just can be controlled the time of blowing, completes blowing quality accurately
Above-mentioned steps A～D carries out successively and continuously.To be that step D is every to the endless form of D carry out once through a dosing interval time steps A, and to be steps A to the endless form of D carry out after once adding cleaning agent upper steps A after the described dosing half of interval time.
Pre-determine dosing interval time according to the speed of cleaning agent consumption in cleaning machine work nest, determine that according to practical production experience described dosing interval time is 2 hours.In step D, after 2 times, add a cleaning agent by actual compensation rate.And after charging valve conducting, need the time (being generally several seconds) that keeps conducting operation one shorter, so that the cleaning agent of actual compensation rate is joined in cleaning machine work nest by cleaning agent storage tank, and concentration generally can be by lower value hop to high value.
In steps A, in distance, once add cleaning agent after 1 hour, measure the current concentration of cleaning agent in cleaning machine work nest.
The setting compensation amount that controller prestores is non-linear relation.Because setting compensation amount is all that current concentration taking cleaning agent in work nest in cleaning machine is as benchmark.Elected reserving after actual compensation rate, actual compensation rate × current concentration is the concentration of the cleaning agent not adding, then converses the quality or the volume that need the cleaning agent adding.
In actual use, generally there are following three kinds of situations.
One, cleaning agent consumption is less than 25% of cleaning agent concentration, and cleaning agent control variables is less, and the very little control of drug concentration fluctuation is stable.Suppose that the consumption of tank liquor concentration was less than or equal to 2% by every 2 hours, in cleaning machine work nest, the change in concentration of cleaning agent and compensation rate are as shown in table 2.
Table 2
Cleaning agent concentration control ideal in cleaning machine work nest in this situation, fluctuation of concentration≤2%, 8% ± 0.16.This situation has reflected most of cleanings, phosphatization and the excursion of electroplating Chinese medicine, has very blanket meaning, and the now variation of cleaning agent concentration as shown in Figure 1.
Two, the actual consumption amount of cleaning agent is very little, for example, within every 2 hours, only consumed the cleaning agent concentration of 0.5% work nest, and now in cleaning machine work nest, change in concentration and the compensation rate of cleaning agent is as shown in table 3.
Table 3
Cleaning agent concentration stabilize in cleaning machine work nest in this situation, fluctuation of concentration≤1%, 8% ± 0.08, the now variation of concentration is as shown in Figure 2.
Three, the actual consumption amount of cleaning agent is very large, for example, within every 2 hours, reach cleaning agent concentration and use lower limit 10%, and now tank liquor variation and compensation rate are as shown in table 4.
Table 4
In this situation, the cleaning agent consumption of cleaning machine work nest is very large, reaches and joins groove amount 10%, approaches in the situation of the limit, and tank liquor can make deviation more and more less under the control of automatic medicine adding apparatus, within can remaining on the scope of technique permission.The now variation of cleaning agent concentration as shown in Figure 3.
The present invention has summed up for example modal concentration consumption in cleaning, phosphatization and parcel plating and has set design parameter, and production application is had to certain guidance meaning.When actual use, operator, as long as press corresponding button according to measured value, can obtain more precise and stable tank liquor controlled concentration.
Above-described embodiment, for explanation technical conceive of the present invention and feature, is only a kind of preferred embodiment, and its object is that person skilled in the art can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.Equivalent transformation or modification that all Spirit Essences according to the present invention are done, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a method that keeps the cleaning agent constant concentration of cleaning machine, is characterized in that, it comprises the following steps:
The current concentration of cleaning agent in A, measurement cleaning machine work nest;
B, by the current concentration input control device recording, controller expects that by current concentration and technique concentration ratio draws actual deviation rate;
C, controller prestores the setting deviation ratio of multiple different number ranges, the union of the number range of multiple setting deviation ratios is { be more than or equal to zero and be less than or equal to the maximum deflection difference value of cleaning agent concentration that cleaning machine allows }, each setting deviation ratio stores respectively a cleaning agent setting compensation amount of expecting concentration for the concentration of cleaning machine cleaning agent being returned to technique under this setting deviation ratio accordingly, setting compensation amount is more than or equal to zero, the actual deviation rate drawing of step B and each setting deviation ratio are made comparisons, in the time that the numerical value of actual deviation rate belongs to the number range of one of them setting deviation ratio, the selected corresponding setting compensation amount of this setting deviation ratio is actual compensation rate,
D, in cleaning machine work nest, add cleaning agent by actual compensation rate;
Above-mentioned steps A～D carries out successively and cyclically.
2. the method for maintenance cleaning agent constant concentration according to claim 1, it is characterized in that: pre-determine dosing interval time according to the speed of cleaning agent consumption in cleaning machine work nest, to be that step D is every to the endless form of D carry out once through a dosing interval time steps A.
3. the method for maintenance cleaning agent constant concentration according to claim 2, is characterized in that: to be steps A to the endless form of D carry out after once adding cleaning agent upper steps A after the described dosing half of interval time.
4. the method for maintenance cleaning agent constant concentration according to claim 1, is characterized in that: the setting value that controller prestores is non-linear relation.
5. the method for maintenance cleaning agent constant concentration according to claim 4, is characterized in that: the described setting deviation ratio that controller prestores is five.
6. the method for maintenance cleaning agent constant concentration according to claim 1, is characterized in that: described controller is PLC controller.
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| CN201410216832.7A CN104001686B (en) | 2014-05-22 | 2014-05-22 | A kind of method keeping the cleaning agent constant concentration of cleaning machine |
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| CN201410216832.7A CN104001686B (en) | 2014-05-22 | 2014-05-22 | A kind of method keeping the cleaning agent constant concentration of cleaning machine |
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| CN104001686A true CN104001686A (en) | 2014-08-27 |
| CN104001686B CN104001686B (en) | 2016-01-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648460B (en) * | 2016-03-14 | 2018-02-13 | 佛山市网冠金属制品有限公司 | A kind of intelligent spray system and method |
| CN110843154A (en) * | 2019-11-22 | 2020-02-28 | 浙江海利环保科技股份有限公司 | Method and system for controlling addition of polyester waste washing liquid medicine |
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| US5747342A (en) * | 1995-10-31 | 1998-05-05 | Calgon Corporation | Methods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio in boiler systems operating with captive alkalinity |
| JP2003100696A (en) * | 2001-09-26 | 2003-04-04 | Sony Corp | Automatic concentration control device |
| JP2003103760A (en) * | 2001-09-28 | 2003-04-09 | Fuji Photo Film Co Ltd | Printing apparatus and damping water supply control unit therefor |
| US8262870B2 (en) * | 2005-06-10 | 2012-09-11 | Aeromet Technologies, Inc. | Apparatus, methods, and compositions for removing coatings from a metal component |
| CN103276388A (en) * | 2013-05-21 | 2013-09-04 | 湖北汽车工业学院 | Device and method for online monitoring and automatic supplementation of phosphating solution |
-
2014
- 2014-05-22 CN CN201410216832.7A patent/CN104001686B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747342A (en) * | 1995-10-31 | 1998-05-05 | Calgon Corporation | Methods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio in boiler systems operating with captive alkalinity |
| JP2003100696A (en) * | 2001-09-26 | 2003-04-04 | Sony Corp | Automatic concentration control device |
| JP2003103760A (en) * | 2001-09-28 | 2003-04-09 | Fuji Photo Film Co Ltd | Printing apparatus and damping water supply control unit therefor |
| US8262870B2 (en) * | 2005-06-10 | 2012-09-11 | Aeromet Technologies, Inc. | Apparatus, methods, and compositions for removing coatings from a metal component |
| CN103276388A (en) * | 2013-05-21 | 2013-09-04 | 湖北汽车工业学院 | Device and method for online monitoring and automatic supplementation of phosphating solution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648460B (en) * | 2016-03-14 | 2018-02-13 | 佛山市网冠金属制品有限公司 | A kind of intelligent spray system and method |
| CN110843154A (en) * | 2019-11-22 | 2020-02-28 | 浙江海利环保科技股份有限公司 | Method and system for controlling addition of polyester waste washing liquid medicine |
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| CN104001686B (en) | 2016-01-13 |
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Effective date of registration: 20170113 Address after: Jiading District Xuhang town labor Road 201808 Shanghai City No. 102 Lane 213 Patentee after: Shanghai Yuanda Cleaning Equipment Co., Ltd. Address before: 215422 Xingang Middle Road, Jiangsu, Suzhou, No. 2, 8-2, Patentee before: Granary Yuan De Environmental Protection Technology Co., Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190522 |
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| CF01 | Termination of patent right due to non-payment of annual fee |