CN213398377U - Online monitoring system for chloride ion content in industrial circulating cooling water - Google Patents
Online monitoring system for chloride ion content in industrial circulating cooling water Download PDFInfo
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- CN213398377U CN213398377U CN202022669002.3U CN202022669002U CN213398377U CN 213398377 U CN213398377 U CN 213398377U CN 202022669002 U CN202022669002 U CN 202022669002U CN 213398377 U CN213398377 U CN 213398377U
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Abstract
The utility model discloses an online monitoring system of chloride ion content in industry recirculated cooling water, recirculated cooling water pipeline is linked together with the entry of overflow cup, the export of overflow cup is linked together with titration reactor's entry, the export of indicator C storage tank is linked together with titration reactor's entry, the export of #1 range standard reagent A storage tank is linked together through #1 range automatic titration system and titration reactor's entry, the export of #2 range standard reagent B storage tank is linked together through #2 range automatic titration system and titration reactor's entry, the photoelectric detector just right the titration reactor, the output of photoelectric detector is connected with the control end of #1 range automatic titration system and #2 range automatic titration system; the #1 range automatic titration system is connected with the control system through the #1 range calculation system, the #2 range automatic titration system is connected with the control system through the #2 range calculation system, the system can be used for continuously monitoring high-content chloride ions in industrial circulating cooling water on line, and the monitoring accuracy is high.
Description
Technical Field
The utility model belongs to the power generation technology water quality monitoring field relates to an online monitoring system of chloride ion content in industrial circulating cooling water.
Background
Chloride ions in industrial circulating cooling water is an important control index because in an open circulating cooling water system, as water is continuously evaporated in a water cooling tower, the salt content in the circulating water is higher and higher, and in order to maintain the salt content in the circulating cooling water at a certain concentration and maintain the total amount of the circulating water constant, a part of concentrated water must be discharged and a part of fresh water with low salt content must be supplemented. The concentration degree of the salts in the circulating water is generally expressed by concentration factor, the concentration factor of the salt content in the circulating water is generally expressed by the ratio of the chloride ion concentration in the circulating cooling water to the chloride ion concentration in the supplementing water on site, but the chloride ion concentration of the industrial circulating cooling water fluctuates greatly due to different water sources, different concentration factors and the like. The content of chloride ions in the traditional industrial circulating cooling water is determined by manually sampling, and the determination of the content of chloride ions in the traditional industrial circulating cooling water has the following problems:
1) the chloride ion content in the traditional industrial circulating cooling water is mainly analyzed through manual sampling, continuous on-line monitoring of the chloride ion content in the water cannot be realized, the monitoring of the water quality has hysteresis, and the labor cost is increased.
2) When the content of chloride ions in industrial circulating cooling water is measured by manual sampling, a molar method is generally adopted, but the titration end point is judged by the molar method through the change of color, and the titration end point is difficult to judge in manual analysis, so that the repeatability is poor, and the measurement result is inaccurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an online monitoring system of chloride ion content in industrial circulating cooling water, this system is now to the continuous on-line monitoring of high-content chloride ion in the industrial circulating cooling water, and the accuracy of monitoring is higher.
In order to achieve the above object, the online monitoring system for chloride ion content in industrial circulating cooling water of the present invention comprises a circulating cooling water pipeline, an overflow cup, a titration reactor, an indicator C storage tank, a #1 range standard reagent a storage tank, a #1 range automatic titration system, a #2 range standard reagent B storage tank, a #2 range automatic titration system, a photoelectric detector, a #1 range calculation system, a #2 range calculation system and a control system;
the circulating cooling water pipeline is communicated with an inlet of the overflow cup, an outlet of the overflow cup is communicated with an inlet of the titration reactor, an outlet of the indicator C storage tank is communicated with an inlet of the titration reactor, an outlet of the #1 range standard reagent A storage tank is communicated with an inlet of the titration reactor through the #1 range automatic titration system, an outlet of the #2 range standard reagent B storage tank is communicated with an inlet of the titration reactor through the #2 range automatic titration system, the photoelectric detector is right opposite to the titration reactor, and an output end of the photoelectric detector is connected with control ends of the #1 range automatic titration system and the #2 range automatic titration system;
the #1 measuring range automatic titration system is connected with the control system through the #1 measuring range calculation system, and the #2 measuring range automatic titration system is connected with the control system through the #2 measuring range calculation system.
The device also comprises a sewage pump, wherein the sewage pump is communicated with a sewage outlet at the bottom of the titration reactor.
The device also comprises a flushing water pipe, wherein the flushing water pipe is communicated with the titration reactor through a flushing pump.
The outlet of the overflow cup is communicated with the inlet of the titration reactor through a sample injection metering pump.
The outlet of the indicator C storage tank is communicated with the inlet of the titration reactor through an indicator C reagent metering pump.
During detection, the photoelectric detector judges the end point of the reaction in the titration reactor, and then sends a feedback signal to the #1 measuring range automatic titration system and the #2 measuring range automatic titration system, and the #1 measuring range calculation system calculates the content of the ions of the currently detected sample according to the titration amounts of the #1 measuring range automatic titration system and the #2 measuring range automatic titration system.
The utility model discloses following beneficial effect has:
industrial circulation cooling water in chlorine ion content's on-line monitoring system and method when concrete operation, the photoelectric detector judges the terminal point of reaction in the titration reactor, then send feedback signal for #1 range automatic titration system and #2 range automatic titration system, #1 range computing system obtains the content of sample ion that is surveyed at present according to the titration amount calculation of #1 range automatic titration system and #2 range automatic titration system, the realization is to the continuous on-line monitoring of high content chlorine ion in the industrial circulation cooling water, do not need the manual sampling to measure, improve measuring accuracy and real-time, reduce the cost of labor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a control system, 2 is a #1 range calculation system, 3 is a #2 range calculation system, 4 is a #1 range automatic titration system, 5 is a #2 range automatic titration system, 6 is a titration reactor, 7 is a photoelectric detector, 8 is a #1 range standard reagent A storage tank, 9 is a #2 range standard reagent B storage tank, 10 is an indicator C storage tank, 11 is an indicator C reagent metering pump, 12 is a flushing pump, 13 is a sample injection metering pump, 14 is a sewage pump, and 15 is an overflow cup.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the on-line monitoring system for chloride ion content in industrial circulating cooling water of the present invention includes a circulating cooling water pipeline, an overflow cup 15, a titration reactor 6, an indicator C storage tank 10, a #1 range standard reagent a storage tank 8, a #1 range automatic titration system 4, a #2 range standard reagent B storage tank 9, a #2 range automatic titration system 5, a photoelectric detector 7, a #1 range calculation system 2, a #2 range calculation system 3 and a control system 1; the circulating cooling water pipeline is communicated with an inlet of the overflow cup 15, an outlet of the overflow cup 15 is communicated with an inlet of the titration reactor 6, an outlet of the indicator C storage tank 10 is communicated with an inlet of the titration reactor 6, an outlet of the #1 range standard reagent A storage tank 8 is communicated with an inlet of the titration reactor 6 through the #1 range automatic titration system 4, an outlet of the #2 range standard reagent B storage tank 9 is communicated with an inlet of the titration reactor 6 through the #2 range automatic titration system 5, the photoelectric detector 7 is opposite to the titration reactor 6, and an output end of the photoelectric detector 7 is connected with control ends of the #1 range automatic titration system 4 and the #2 range automatic titration system 5; the #1 measuring range automatic titration system 4 is connected with the control system 1 through the #1 measuring range calculation system 2, and the #2 measuring range automatic titration system 5 is connected with the control system 1 through the #2 measuring range calculation system 3.
The utility model discloses still include dredge pump 14, wherein, dredge pump 14 is linked together with the drain of titrating 6 bottoms of reactor.
The utility model also comprises a flushing water pipe, wherein the flushing water pipe is communicated with the titration reactor 6 through a flushing pump 12; the outlet of the overflow cup 15 is communicated with the inlet of the titration reactor 6 through a sample injection metering pump 13; the outlet of indicator C reservoir 10 communicates with the inlet of titration reactor 6 via indicator C reagent metering pump 11.
The utility model discloses a measurement principle as follows: taking potassium chromate as an indicator in a water sample, titrating by using silver nitrate standard solution under a neutral or alkalescent condition, and indicating that an end point is reached when brick red silver chromate precipitates appear, wherein the reaction is as follows:
Cl-+Ag+AgCl (white precipitate)
CrO4 2-+2Ag+＝Ag2CrO4(brick red precipitate)
The measuring range is set through the control system 1, the #1 measuring range automatic titration system 4 is a low measuring range, the #2 measuring range automatic titration system 5 is a high measuring range, generally, the measuring range is set as the low measuring range, the field industrial circulating cooling water sample is filled into the overflow cup 15, then the quantitative water sample is added into the titration reactor 6 through the sample injection metering pump 13, the indicator C output by the indicator C storage tank 10 is quantitatively titrated into the titration reactor 6 through the indicator C reagent metering pump 11, the stirring is carried out through the magnetic stirring bar, then the #1 measuring range standard reagent A storage tank 8 is dripped into the titration reactor 6 through the #1 measuring range automatic titration system 4, the change of the color of the sediment in the titration reactor 6 is monitored in real time through the photoelectric detector 7 in the titration process of the standard reagent A, when the sediment is changed from white to brick red, the photoelectric detector 7 sends feedback information to the #1 measuring range automatic titration system 4, at this time, the #1 range automatic titration system 4 considers that the titration reaches the end point, stops the titration, records the volume of the consumed standard reagent A through the #1 range automatic titration system 4, transmits the volume value of the consumed standard reagent A to the #1 range calculation system 2, and the #1 range calculation system 2 calculates the content of the currently measured sample ions according to the volume value of the consumed standard reagent A.
When the measured value of the measured sample chloride ion exceeds the current range, the range is automatically switched to the high-content chloride range through the control system 1, the content of the sample ion currently measured is carried out by utilizing the #2 range calculation system 3, the #2 range automatic titration system 5 and the #2 range standard reagent B storage tank 9, and the measuring mode is the same as the low range.
After each sample is measured, the waste liquid is discharged through the sewage pump 14, and the washing pump 12 is started to wash the titration reactor 6 for multiple times, so that the inner wall of the titration reactor 6 is ensured to be clean, and the influence on subsequent measurement is avoided.
Claims (6)
1. An on-line monitoring system for the content of chloride ions in industrial circulating cooling water is characterized by comprising a circulating cooling water pipeline, an overflow cup (15), a titration reactor (6), an indicator C storage tank (10), a #1 range standard reagent A storage tank (8), a #1 range automatic titration system (4), a #2 range standard reagent B storage tank (9), a #2 range automatic titration system (5), a photoelectric detector (7), a #1 range calculation system (2), a #2 range calculation system (3) and a control system (1);
the circulating cooling water pipeline is communicated with an inlet of an overflow cup (15), an outlet of the overflow cup (15) is communicated with an inlet of a titration reactor (6), an outlet of an indicator C storage tank (10) is communicated with an inlet of the titration reactor (6), an outlet of a #1 range standard reagent A storage tank (8) is communicated with the inlet of the titration reactor (6) through a #1 range automatic titration system (4), an outlet of a #2 range standard reagent B storage tank (9) is communicated with the inlet of the titration reactor (6) through a #2 range automatic titration system (5), a photoelectric detector (7) is opposite to the titration reactor (6), and an output end of the photoelectric detector (7) is connected with control ends of the #1 range automatic titration system (4) and the #2 range automatic titration system (5);
the #1 measuring range automatic titration system (4) is connected with the control system (1) through the #1 measuring range calculation system (2), and the #2 measuring range automatic titration system (5) is connected with the control system (1) through the #2 measuring range calculation system (3).
2. The on-line monitoring system for the chloride ion content in the industrial circulating cooling water as claimed in claim 1, further comprising a sewage pump (14), wherein the sewage pump (14) is communicated with a sewage outlet at the bottom of the titration reactor (6).
3. The system for on-line monitoring of the chloride ion content in the industrial circulating cooling water according to claim 1, further comprising a flushing water pipe, wherein the flushing water pipe is communicated with the titration reactor (6) through a flushing pump (12).
4. The system for on-line monitoring of the chloride ion content in the industrial circulating cooling water as claimed in claim 1, wherein the outlet of the overflow cup (15) is communicated with the inlet of the titration reactor (6) through a sample metering pump (13).
5. The on-line monitoring system for the chloride ion content in the industrial circulating cooling water according to claim 1, characterized in that the outlet of the indicator C storage tank (10) is communicated with the inlet of the titration reactor (6) through an indicator C reagent metering pump (11).
6. The on-line monitoring system for the chloride ion content in the industrial circulating cooling water as claimed in claim 1, wherein during detection, the photoelectric detector (7) judges the end point of the reaction in the titration reactor (6), then sends a feedback signal to the # 1-range automatic titration system (4) and the # 2-range automatic titration system (5), and the # 1-range calculation system (2) calculates the content of the currently measured sample ion according to the titration amounts of the # 1-range automatic titration system (4) and the # 2-range automatic titration system (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669002.3U CN213398377U (en) | 2020-11-17 | 2020-11-17 | Online monitoring system for chloride ion content in industrial circulating cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669002.3U CN213398377U (en) | 2020-11-17 | 2020-11-17 | Online monitoring system for chloride ion content in industrial circulating cooling water |
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| Publication Number | Publication Date |
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| CN213398377U true CN213398377U (en) | 2021-06-08 |
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| CN202022669002.3U Active CN213398377U (en) | 2020-11-17 | 2020-11-17 | Online monitoring system for chloride ion content in industrial circulating cooling water |
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| CN (1) | CN213398377U (en) |
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- 2020-11-17 CN CN202022669002.3U patent/CN213398377U/en active Active
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