CN202886344U - Automatic detecting device with double pH (potential of hydrogen) meters used in titanium dioxide device - Google Patents
Automatic detecting device with double pH (potential of hydrogen) meters used in titanium dioxide device Download PDFInfo
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- CN202886344U CN202886344U CN2012205061775U CN201220506177U CN202886344U CN 202886344 U CN202886344 U CN 202886344U CN 2012205061775 U CN2012205061775 U CN 2012205061775U CN 201220506177 U CN201220506177 U CN 201220506177U CN 202886344 U CN202886344 U CN 202886344U
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Abstract
The utility model discloses an automatic detecting device with double pH (potential of hydrogen) meters used in a titanium dioxide device. The automatic detecting device comprises a pair of pH meters which are respectively provided with an air inlet, an air outlet, a liquid inlet and a liquid outlet and are directly mounted in a titanium dioxide device mounting flange, wherein each pH meter is respectively provided with a cleaning and maintaining device; and the two pH meters and the two cleaning and maintaining devices are controlled by the same control unit. With the adoption of the automatic detecting device, the pH value of a coating system is detected by using a method of directly inserting the two pH meters, thus the disadvantages of the currently used reflux detection method are overcome, the purpose of detecting the pH value of the coating system in real time is achieved, the maintaining work load and the application energy consumption of the pH meters are reduced, the service life of the pH meters is prolonged, and the reliability of the pH meters is enhanced.
Description
Technical field
The utility model relates to pH pick-up unit field, is specially two pH meter automatic detection devices in a kind of titanium dioxide device.
Background technology
All need to stir when charging in the production run, interpolation chemicals material, will carry out discharge after a coating tank coating reaches requirement, discharge is complete will wait for next time charging coating order, and this moment, the coating tank may be slack tank.The pH value detects traditional method in this production technology two kinds, and a kind of is to measure in coating tank (groove) top immersed method; Another kind is that circumfluence method is measured.The shortcoming of these two kinds of measuring methods is as follows:
1, the top immersed method is measured
Titanium white slurry coating process pH detection method is that pH meter is inserted coating tank (groove) the titanium white slurry from coating tank (groove) top in early time, the method can directly be measured slurry pH value in the coating tank, can in time reflect slurry pH value, but the pH meter mounting rod that pH value determination is used is longer, also have paddle to stir in the coating tank, so pH meter installs and need to add support in its bottom, otherwise swinging can appear in mounting rod, damage pH meter, so also will cause pH meter not quick detachable.Do not need on time timely demarcation owing in titanium white slurry production run, find the pH meter measurement, need to demarcate and protect at the complete rear pH meter of production.The demarcation of pH meter and safeguard that pH meter need to be taken out the coating tank just can carry out under this mounting means, because mounting rod is longer, its taking-up is very difficult, instrument maintainer will require considerable time and effort to safeguard pH meter, in case safeguarding manpower does not catch up with, pH meter can not normally use, and become ornaments; If pH meter is safeguarded or demarcated in process of production, production technology will be interrupted, thereby will increase the titanium white slurry coating time.Therefore, just use circumfluence method for these situations and detected the pH value.
2, circumfluence method is measured
Circumfluence method is measured in the coating process titanium white slurry pH value and is existed in the shortcomings situation in " measurement of top immersed method " and develop.The method is: adopt electrodynamic pump or membrane pump that the slurry in the coating tank is returned stream at coating tank duration of work, at recirculatory pipe the pH value that pH meter is measured the backflow slurry is installed.Although the method has overcome the not shortcoming of easy care and demarcation of " measurement of top immersed method " pH meter, improved the pH meter service efficiency, but reflux pump is had relatively high expectations, two reflux pumps (one open one standby) are set generally speaking, also need dispose corresponding measuring channel and valve, construction investment and cost of use are higher; Because the tank outer circulation, pipeline is longer, and flow velocity is very fast, and pH value measures that hysteresis is larger, and it is larger to wear and tear, and has shortened pH meter serviceable life; PH meter measuring error occurs and is difficult for finding that during the coating tank quit work, pH meter and reflux pump need to manually clean, demarcate and protect, and had increased maintainer's labour intensity.
The utility model content
The purpose of this utility model provides two pH meter automatic detection devices in a kind of titanium dioxide device, measures titanium white slurry coating pH value cost height, pH meter short problem in serviceable life to solve the prior art circumfluence method.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
Two pH meter automatic detection devices in the titanium dioxide device, include and a pair ofly bring into respectively, gas outlet and advancing, liquid outlet and be directly installed on pH meter in the titanium dioxide device mounting flange, each pH meter disposes respectively and cleans and curing means, two pH meters, two cleanings and curing means are jointly by same control module control, it is characterized in that: each cleans with curing means and is made of air path part and liquid road part respectively, wherein air path part comprises the air filtration decompressor that passes through successively pipeline connection, pressure switch, two-position four-way solenoid valve, each cleans and the air path part Air filtering pressure reducer air intake opening of curing means accesses respectively instrument air, each cleans, and the two-position four-way solenoid valve gas outlet is communicated with by the enterprising gas port of the self-corresponding pH meter of pipeline and each respectively in the air path part with curing means, liquid road part comprises successively the water filter by pipeline connection, the water reduction valve, pressure switch, Through solenoid valve, and drain pipe, the water filter inlet accesses respectively desalted water in the liquid road part of each cleaning and curing means, each cleans, and the Through solenoid valve liquid outlet is communicated with by the self-corresponding pH meter inlet of pipeline and each respectively in the liquid road part with curing means, and drain pipe is connected on the liquid outlet of each self-corresponding pH meter in the liquid road part of each cleaning and curing means.
Two pH meter automatic detection devices in the described titanium dioxide device, it is characterized in that: described control module is made of the DCS control system in the titanium dioxide device, perhaps is made of PLC.
Two pH meter automatic detection devices in the described titanium dioxide device is characterized in that: be separately installed with the fluid Through solenoid valve on the drain pipe in the liquid road part of each cleaning and curing means.
The utility model has adopted two pH meter direct insertion methods to detect the coating pH of system value, overcome the shortcoming of the backflow detection method of original employing, the cleaning of pH meter automatic lifting, automatic maintenance, demarcation prompting and pH value computing comparing function have been increased simultaneously, realized the pH value of real-time detection coating system, reduced pH meter maintenance workload and Energy in use, prolonged the serviceable life of pH meter and strengthened its reliability.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1.Two pH meter automatic detection devices in the titanium dioxide device, include and a pair ofly bring into respectively, gas outlet and advancing, liquid outlet and be directly installed on pH meter 9 in the titanium dioxide device mounting flange 12, each pH meter 9 disposes respectively and cleans and curing means 10, two pH meters 9, two cleanings and curing means 10 are jointly by same control module 11 controls, each cleans with curing means 10 and is made of air path part and liquid road part respectively, wherein air path part comprises the air filtration decompressor 1 that passes through successively pipeline connection, pressure switch 5, two-position four-way solenoid valve 7, each cleans and air path part Air filtering pressure reducer 1 air intake opening of curing means 10 accesses respectively instrument air IA, each cleans, and two-position four-way solenoid valve 7 gas outlets are communicated with by the enterprising gas port of the self-corresponding pH meter of pipeline and each respectively in the air path part with curing means 10, liquid road part comprises the water filter 2 that passes through successively pipeline connection, water reduction valve 3, pressure switch 4, Through solenoid valve 6, and drain pipe, water filter 2 inlets access respectively desalted water DW in the liquid road part of each cleaning and curing means 10, each cleans, and Through solenoid valve 6 liquid outlets are communicated with by the self-corresponding pH meter inlet of pipeline and each respectively in the liquid road part with curing means 10, and drain pipe is connected on the liquid outlet of each self-corresponding pH meter in the liquid road part of each cleaning and curing means 10.
Be separately installed with fluid Through solenoid valve 8 on the drain pipe in the liquid road part of each cleaning and curing means 10.
The utility model has used two pH meters directly to insert and has detected the titanium white slurry pH value in the coating tank slurry, pH meter is worn and is cleaned and curing means, the control of pH measuring-signal, cleaning and curing means all realizes in control module, control module is made of the DCS control system in the titanium dioxide device, perhaps is made of a PLC.Control module shows measuring-signal or the duty of pH measurement mechanism simultaneously, and the convenient operation personnel observe and operation.The pH measurement mechanism is comprised of three parts:
In the utility model, pH measures by 2 pH meters and realizes that wherein pH meter is general standard meter.
Clean with curing means in the utility model and consisted of by air path part and liquid road part, air path part comprises air filtration decompressor, pressure switch, two-position four-way solenoid valve, liquid road part comprises water filter, water reduction valve, pressure switch, Through solenoid valve, and with the drain pipe of Through solenoid valve., control module is delivered in two a series of signal collections such as pH meter measurement mechanism pH, then the programming software by control module is signal output device so far, carries out pH meter measurement, cleaning, maintenance and demarcates the function such as prompting.
The control module internal program is comprised of four parts:
1, deviation determining program
Comprise two parts subroutine in this program, namely pH meter inserts condition judgment program and deviation determining program.
(1) pH meter inserts the condition judgment program
This program mainly judges that according to coating tank liquid level pH meter drops into or maintenance, and after coating tank liquid level satisfied pH meter input condition, pH meter can drop into, and starts simultaneously " deviation determining program "; When liquid level does not satisfy its input condition, pH withdraws from immediately, starts simultaneously pH meter " cleaning procedure " and " curing procedure ".
(2) deviation determining program
The pH signal that two pH meters (A, B) gather, deviation in control system between two pH values of judgement is (in order to judge more accurately, the inherent variability that two pH meters produce after demarcating will be eliminated in advance), when deviate is within the higher limit, get the mean value of two pH meter measured values as the measuring-signal of slurry pH value control loop, realize coating tank slurry pH control (by acid adding and add the alkali number operation valve realize); After its deviate (can set in advance by operating personnel, also can revise after operation a period of time) reaches higher limit, the automatic cleaning procedure of pH meter will start.
2, cleaning procedure
At first clean the A pH meter, B pH meter measured value, starts " deviation determining program " after the cleaning of A pH meter is complete again as pH control loop measuring-signal, and in the time of within deviate is in higher limit, cleaning procedure finishes; Otherwise cleaning procedure cleans the B pH meter, and A pH meter measured value, starts " deviation determining program " after the cleaning of B pH meter is complete as pH control loop measuring-signal, and in the time of within deviate is in higher limit, cleaning procedure finishes; When deviate still on higher limit, will produce deviation upper limit alarm and alert and carry out pH meter and demarcate or safeguard.
3, demarcate alert program
This program mainly is to produce an information " to check pH meter, mark, decide to safeguard or change pH meter ".After producing this information, in time check pH meter to remind operating personnel, if pH meter goes wrong, the maintainer can demarcate or change online.
4, curing procedure
This program judges that according to coating tank liquid level pH meter drops into or maintenance, when coating tank liquid level does not satisfy the pH meter service condition, program will start first pH meter " cleaning procedure ", after scavenging period finishes, start pH meter " curing procedure ", be that pH meter is retracted in the cleaning chambers automatically, use desalted water to carry out maintenance, wait for lower task.Between curing period, pH meter " deviation judgement " program is in starting state always, will produce warning when deviation is excessive, starts simultaneously " demarcation alert program ", so that the maintainer in time pinpoints the problems.
Claims (3)
1. two pH meter automatic detection devices in the titanium dioxide device, include and a pair ofly bring into respectively, gas outlet and advancing, liquid outlet and be directly installed on pH meter in the titanium dioxide device mounting flange, each pH meter disposes respectively and cleans and curing means, two pH meters, two cleanings and curing means are jointly by same control module control, it is characterized in that: each cleans with curing means and is made of air path part and liquid road part respectively, wherein air path part comprises the air filtration decompressor that passes through successively pipeline connection, pressure switch, two-position four-way solenoid valve, each cleans and the air path part Air filtering pressure reducer air intake opening of curing means accesses respectively instrument air, each cleans, and the two-position four-way solenoid valve gas outlet is communicated with by the enterprising gas port of the self-corresponding pH meter of pipeline and each respectively in the air path part with curing means, liquid road part comprises successively the water filter by pipeline connection, the water reduction valve, pressure switch, Through solenoid valve, and drain pipe, the water filter inlet accesses respectively desalted water in the liquid road part of each cleaning and curing means, each cleans, and the Through solenoid valve liquid outlet is communicated with by the self-corresponding pH meter inlet of pipeline and each respectively in the liquid road part with curing means, and drain pipe is connected on the liquid outlet of each self-corresponding pH meter in the liquid road part of each cleaning and curing means.
2. two pH meter automatic detection devices in the titanium dioxide device according to claim 1, it is characterized in that: described control module is made of the DCS control system in the titanium dioxide device, perhaps is made of PLC.
3. two pH meter automatic detection devices in the titanium dioxide device according to claim 1 is characterized in that: be separately installed with the fluid Through solenoid valve on the drain pipe in the liquid road part of each cleaning and curing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205061775U CN202886344U (en) | 2012-09-28 | 2012-09-28 | Automatic detecting device with double pH (potential of hydrogen) meters used in titanium dioxide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205061775U CN202886344U (en) | 2012-09-28 | 2012-09-28 | Automatic detecting device with double pH (potential of hydrogen) meters used in titanium dioxide device |
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| CN202886344U true CN202886344U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205061775U Expired - Lifetime CN202886344U (en) | 2012-09-28 | 2012-09-28 | Automatic detecting device with double pH (potential of hydrogen) meters used in titanium dioxide device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062994A (en) * | 2014-06-11 | 2014-09-24 | 东华工程科技股份有限公司 | Multifunctional formula automatic control method for titanium dioxide enveloping system |
| CN112885180A (en) * | 2021-02-02 | 2021-06-01 | 内蒙古国城资源综合利用有限公司 | Titanium white device typical control loop simulation training system and method |
| CN115595568A (en) * | 2022-10-22 | 2023-01-13 | 杨昆（Cn） | Aluminum foil surface passivation treatment system |
-
2012
- 2012-09-28 CN CN2012205061775U patent/CN202886344U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062994A (en) * | 2014-06-11 | 2014-09-24 | 东华工程科技股份有限公司 | Multifunctional formula automatic control method for titanium dioxide enveloping system |
| CN112885180A (en) * | 2021-02-02 | 2021-06-01 | 内蒙古国城资源综合利用有限公司 | Titanium white device typical control loop simulation training system and method |
| CN115595568A (en) * | 2022-10-22 | 2023-01-13 | 杨昆（Cn） | Aluminum foil surface passivation treatment system |
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Granted publication date: 20130417 |
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| CX01 | Expiry of patent term |