CN103924419A - Washing solution online detection method and washing device - Google Patents
Washing solution online detection method and washing device Download PDFInfo
- Publication number
- CN103924419A CN103924419A CN201410181119.3A CN201410181119A CN103924419A CN 103924419 A CN103924419 A CN 103924419A CN 201410181119 A CN201410181119 A CN 201410181119A CN 103924419 A CN103924419 A CN 103924419A
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- cleaning solution
- master controller
- washing
- circulation line
- parameter value
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D06F2202/02—
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- D06F2204/10—
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention provides a washing device which comprises a washing bucket, a master controller and a display screen connected with the master controller. A washing solution circulating pipeline is arranged on the outer side of the washing bucket. A sensor is arranged on the circulating pipeline. The sensor is used for detecting parameter values of a washing solution and uploading the parameter values to the master controller, and the parameter values are displayed through the display screen. According to the washing device, multi-term indexes of the washing solution can be monitored in real time in an online mode, the PH value, the residual chlorine and the turbidity of the washing solution can reach environment-friendly emission standards. The invention further provides a washing solution online detection method.
Description
Technical field
The present invention relates to blowdown detection field, specifically a kind of cleaning solution online test method and washing facility.
Background technology
The outer washing machine (comprising full-automatic wash-out all-in-one, semi-automatic washing machine, continuous batch washer, washing machine etc.) of Present Domestic, need to be to adding in washtub washing powder, neutralizing acid, chlorine to float agent etc. containing composition washing materials such as acid, alkali, chlorine at washing process, to reach the objects such as decontamination, but in washing process, excessive concentration or washing rear residual exceed standard of these additives in cleaning solution, can bring certain harm to washing articles and user, also can cause waste water residuals after discharge to exceed standard and bring destruction to environment.In the past, in washing operation, only rely on the way of artificial sampling observation to detect respectively cleaning solution related parameter values index, and there is the defects such as program is loaded down with trivial details, hysteresis in artificial sampling observation, and Deng pinpointing the problems lately, manually cannot accomplish every data to detect in real time and monitoring at any time at all.Therefore the washing agent, occurring at washing process exceeds standard or the problem such as residual ubiquity always.
Summary of the invention
The present invention is directed to the problem that the parameter value of cleaning solution in existing washing facility cannot detect in real time, propose a kind of cleaning solution online test method, it adopts following technical scheme to be achieved:
The invention provides a kind of cleaning solution online test method, comprise the steps:
Step a, in master controller, set in advance the safe range of parameter value to be checked;
Step b, at washtub arranged outside cleaning solution circulation line;
Step c, sensor detect the cleaning solution parameter value in cleaning solution circulation line and are uploaded to master controller;
Steps d, master controller compare according to the parameter value and the described safe range that receive, and export result to display screen demonstration.
The present invention can also further improve by the following technical programs:
Preferably, in described step b, at the washtub arranged outside San road circulation line that is connected in parallel, on each pipeline, be respectively equipped with pH/ORP on-line detector, chlorine residue instrument and online turbidity analyser.
Preferably, in described steps d, also comprise the steps: master controller selects according to the comparative result of the parameter value receiving and described safe range whether trigger alarm device is reported to the police.
Preferably, described parameter value to be checked comprises pH value, contents of residual chlorine, cleaning solution turbidity and/or dissolved oxygen content.
Preferably, the safe range of described pH value is 7 ~ 8.
The present invention also provides a kind of washing facility for above-mentioned detection method, comprise washtub, master controller and the display screen being connected with master controller, the outside of described washtub is provided with cleaning solution circulation line, on this circulation line, sensor is set, described sensor is in order to detect cleaning solution parameter value and be uploaded to master controller and then show by display screen.
The present invention can also further improve by the following technical programs:
Preferably, described circulation line comprises the three-way connection (pipe) road being connected in parallel, and is respectively equipped with pH/ORP on-line detector, chlorine residue instrument and online turbidity analyser on each pipeline.Preferably, washing facility of the present invention also comprises the warning device being connected with described master controller.
Preferably, washing facility of the present invention also comprises the memory being connected with described master controller.
Preferably, described master controller is Programmable Logic Controller.
Compared with prior art, the present invention has obtained following beneficial effect:
Cleaning solution online test method of the present invention and washing facility have been realized the multiple parameters value of cleaning solution have been carried out to real time and on line monitoring simultaneously, by display screen, can understand at any time the various variations that in washing process, the every chemical residual key parameter of cleaning solution value occurs, whole washing process is controlled in safe range, effectively after prevention cleaning solution and washing, all kinds of chemical residuals in article exceed standard, make the discharge of pH value in cleaning solution, chlorine residue, turbidity etc. reach environmental protection standard, also ensured the use safety that is washed article simultaneously.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of the embodiment of the present invention one washing facility;
Fig. 2 is the embodiment of the present invention one washing facility structural representation;
In Fig. 2: 1, washtub; 2, circulation line; 3, pH/ORP on-line detector; 4, chlorine residue instrument; 5, online turbidity analyser;
Fig. 3 is the flow chart of the embodiment of the present invention two cleaning solution online test method.
The specific embodiment
Below in conjunction with the specific embodiment, the online test method of cleaning solution of the present invention and device are described in further detail.
Embodiment mono-:
With reference to figure 1 and Fig. 2, wherein Fig. 1 is the system architecture diagram of the present embodiment washing facility, the primary structure schematic diagram that Fig. 2 is washing facility, and wherein Fig. 2 only illustrates the part compared with prior art making improvements, miscellaneous part is omitted in the drawings.
As above each is schemed: the present embodiment washing facility comprises washtub 1, Programmable Logic Controller and the display screen being connected with Programmable Logic Controller respectively, warning device and memory.On washtub 1, be provided with apopore and backwater hole.The outside of washtub 1 is provided with cleaning solution circulation line 2, and cleaning solution circulation line 2 comprises into water main line, San in parallel road branch road and backwater main line; On water inlet main line and backwater main line, be provided with differential pressure balancing valve and main line control valve; The apopore of water inlet main line and washtub 1 is tightly connected, and the backwater hole of backwater main line and washtub 1 is tightly connected, and the two ends of every road branch road are communicated with water inlet main line, backwater main line respectively.On three road branch roads, be respectively equipped with pH/ORP on-line detector 3, chlorine residue instrument 4 and online turbidity analyser 5, the sensors such as pH/ORP on-line detector 3, chlorine residue instrument 4 and online turbidity analyser 5 are respectively in order to detect pH value, dissolved oxygen content, contents of residual chlorine and the turbidity of cleaning solution, and are uploaded to Programmable Logic Controller and then show by display screen.
Main line control valve is for controlling the open and close of cleaning solution circulation line 2.During normality, main line control valve is in open mode, between cleaning solution circulation line 2 and washtub 1, form linker, cleaning solution in washtub 1 flows into water inlet main line by apopore, and then Jing San Road branch road flows into respectively in the sensors such as pH/ORP on-line detector 3, chlorine residue instrument 4 and online turbidity analyser 5, the cleaning solution Jing San Road branch road flowing out from the sensor flows into backwater main line, finally by backwater hole, flow in washtub 1, thereby between washtub 1 and each sensor, formed the fluid loop circulating.Cleaning solution in washtub 1 and washings be in rotation status, sensor setting can be avoided in the outside of washtub 1 to sensor is impaired, easy access again.
Differential pressure balancing valve, also claims Differential Pressure Controller, belongs to prior art.Differential pressure balancing valve is without external power, rely on the aperture of cleaning solution self the pressure variation automatic regulating valve door in circulation line 2, utilize the change in pressure drop of spool to make up the variation of pipe resistance, thereby make the flow velocity of circulation line 2 interior cleaning solutions can keep substantially constant, make the testing result of each sensor more accurate.
If the flow velocity of circulation line 2 interior cleaning solutions is too low, the impurity such as suspended particulate in cleaning solution easily deposit in pipeline, cause pipeline blockage.Therefore, can on water inlet main line or water outlet main line, install centrifugal pump additional, to increase the kinetic energy of cleaning solution in circulation line, make in circulation line each parameter value of cleaning solution approaching or consistent with each parameter value of cleaning solution in washtub, and then guarantee that each measurement value sensor is true.
Embodiment bis-:
With reference to figure 3, this routine cleaning solution online test method comprises the following steps:
Step a, in Programmable Logic Controller, set in advance the safe range of pH value, contents of residual chlorine, cleaning solution turbidity and dissolved oxygen content; The bound of described pH value is set to respectively 8 and 7, and the upper limit of contents of residual chlorine is set to 3mg/L, and the upper limit of cleaning solution turbidity is set to 70mg/L, and the lower limit of dissolved oxygen content is set to 5mg/L;
PH value, contents of residual chlorine, cleaning solution turbidity and dissolved oxygen content are the main residue indexs of several in cleaning solution.The pH value of water is along with the number of dissolved material and determine, therefore pH value can indicate the situation of change of water quality delicately, the variation of pH value has a significant impact biological breeding and existence, also have a strong impact on activated sludge biochemical effect simultaneously, affect treatment effect, pH value between 7 ~ 8, contents of residual chlorine reached the discharge standard of national regulation lower than 3mg/L, cleaning solution turbidity lower than 70mg/L, dissolved oxygen content higher than the cleaning solution of 5mg/L.
The safe range of above-mentioned parameter value to be checked can independently be adjusted according to required pollution emission standard.
Step b, at the washtub 1 arranged outside San road circulation line 2 that is connected in parallel, on each pipeline, be respectively equipped with pH/ORP on-line detector 3, chlorine residue instrument 4 and online turbidity analyser 5;
Between washtub 1 and circulation line 2, form linker, the sensors such as the cleaning solution in washtub 1 and pH/ORP on-line detector 3, chlorine residue instrument 4, online turbidity analyser 5 fully contact, and testing result is more true.
PH/ORP on-line detector, chlorine residue instrument and online turbidity analyser are prior art, do not repeat them here, and those skilled in the art can independently select as the case may be suitable model when enforcement is of the present invention.
Step c, pH/ORP on-line detector 3, chlorine residue instrument 4, online turbidity analyser 5 detect the cleaning solution parameter value in cleaning solution circulation line 2 and are uploaded to Programmable Logic Controller;
The example that is measured as with pH value.PH value is measured with potentiometry conventionally, conventionally by reference electrode and the measurement electrode of a constant potential, forms a galvanic cell, and the size of galvanic cell electromotive force depends on hydrionic concentration, also depends on the pH value of solution.In pH transmitter measurement electrode, have the special sensitive glass of pH is popped one's head in, it is to make by conducting electricity, can permeate hydrionic specific glass, has the features such as certainty of measurement is high, anti-interference is good.When glass probe contacts with hydrogen ion, just produce current potential.Current potential is that the filamentary silver contrast reference electrode by being suspended in silver chlorate solution measures.PH value is different, and the corresponding current potential producing is also different, converts thereof into standard 4～20mA export by transmitter.Be transported to Programmable Logic Controller, Programmable Logic Controller is converted into actual pH according to corresponding Mathematical Modeling, and participates in controlling in real time.
Steps d, Programmable Logic Controller compare according to the parameter value and the described safe range that receive, and export result to display screen demonstration.
The present embodiment display screen is mainly used to show the measured value of pH value, contents of residual chlorine, cleaning solution turbidity and dissolved oxygen content, also can show the safe range of above-mentioned each parameter value simultaneously, so that operating personnel understand above-mentioned each value at any time whether in safe range.
Certainly also can select whether trigger alarm device is reported to the police according to comparative result, particularly, if parameter value exceeds its corresponding safe range, Programmable Logic Controller trigger alarm device sends early warning signal, to remind administrative staff to make corresponding adjustment; If parameter value does not exceed its corresponding safe range, washing is carried out as usual.The data autostore that Programmable Logic Controller detects each sensor is to memory, in order to inquiry at any time.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; any have a general technical staff of the technical field of the invention; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, so the scope that protection scope of the present invention ought define depending on appending claims is as the criterion.
Claims (10)
1. a cleaning solution online test method, is characterized in that, comprises the following steps:
Step a, in master controller, set in advance the safe range of parameter value to be checked;
Step b, at washtub arranged outside cleaning solution circulation line;
Step c, sensor detect the cleaning solution parameter value in cleaning solution circulation line and are uploaded to master controller;
Steps d, master controller compare according to the parameter value and the described safe range that receive, and export result to display screen demonstration.
2. cleaning solution online test method according to claim 1, it is characterized in that, in described step b, at the washtub arranged outside San road circulation line that is connected in parallel, on each pipeline, be respectively equipped with pH/ORP on-line detector, chlorine residue instrument and online turbidity analyser.
3. cleaning solution online test method according to claim 1 and 2, is characterized in that, in described steps d, also comprises the steps:
Master controller selects according to the comparative result of the parameter value receiving and described safe range whether trigger alarm device is reported to the police.
4. cleaning solution online test method according to claim 3, is characterized in that: described parameter value to be checked comprises pH value, contents of residual chlorine, cleaning solution turbidity and/or dissolved oxygen content.
5. cleaning solution online test method according to claim 4, is characterized in that: the safe range of described pH value is 7 ~ 8.
6. a washing facility, comprise washtub, master controller and the display screen being connected with master controller, it is characterized in that: the outside of described washtub is provided with cleaning solution circulation line, on this circulation line, sensor is set, described sensor is in order to detect cleaning solution parameter value and be uploaded to master controller and then show by display screen.
7. washing facility according to claim 6, is characterized in that: described circulation line comprises the three-way connection (pipe) road being connected in parallel, and is respectively equipped with pH/ORP on-line detector, chlorine residue instrument and online turbidity analyser on each pipeline.
8. according to the washing facility described in claim 6 or 7, it is characterized in that: also comprise the warning device being connected with described master controller.
9. washing facility according to claim 8, is characterized in that: also comprise the memory being connected with described master controller.
10. the device of cleaning solution according to claim 9, is characterized in that: described master controller is Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181119.3A CN103924419B (en) | 2014-05-04 | 2014-05-04 | Washing solution online detection method and washing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410181119.3A CN103924419B (en) | 2014-05-04 | 2014-05-04 | Washing solution online detection method and washing device |
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| CN103924419A true CN103924419A (en) | 2014-07-16 |
| CN103924419B CN103924419B (en) | 2017-01-18 |
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Cited By (4)
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| CN106283518A (en) * | 2015-05-29 | 2017-01-04 | 无锡小天鹅股份有限公司 | Washing machine |
| CN107991291A (en) * | 2017-12-20 | 2018-05-04 | 重庆家本家科技有限公司 | Equipment for detecting washing machine |
| TWI660091B (en) * | 2017-12-06 | 2019-05-21 | Taiwan Textile Research Institute | Washing apparatus and adjusting method for the same |
| CN110878459A (en) * | 2018-08-30 | 2020-03-13 | 无锡小天鹅电器有限公司 | Control method for recycling waste water of washing machine and washing machine |
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| CN110878459A (en) * | 2018-08-30 | 2020-03-13 | 无锡小天鹅电器有限公司 | Control method for recycling waste water of washing machine and washing machine |
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