CN112229955A - Online ion concentration analysis device and analysis equipment - Google Patents
Online ion concentration analysis device and analysis equipment Download PDFInfo
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- CN112229955A CN112229955A CN202011073759.4A CN202011073759A CN112229955A CN 112229955 A CN112229955 A CN 112229955A CN 202011073759 A CN202011073759 A CN 202011073759A CN 112229955 A CN112229955 A CN 112229955A
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- 238000004458 analytical method Methods 0.000 title claims abstract description 49
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 15
- 150000002500 ions Chemical class 0.000 description 45
- 239000007788 liquid Substances 0.000 description 9
- 239000002699 waste material Substances 0.000 description 9
- 239000002253 acid Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012488 sample solution Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention provides an online ion concentration analysis device which comprises a pretreatment pipeline, a conveying pipeline, a return pipeline and an online analyzer, wherein a circulating sampling pump is arranged at the input end of the pretreatment pipeline and connected with a solution tank, the input ends of the conveying pipeline and the return pipeline are both connected with the output end of the pretreatment pipeline, the output end of the conveying pipeline is connected with the online analyzer, and the output end of the return pipeline is connected with the solution tank. The solution is enabled to flow circularly all the time by arranging the return pipeline, the detected solution can be ensured to be the latest solution, and the accuracy of the detection result is further ensured. Based on this, the application also provides an online ion concentration analysis device, which comprises a plurality of online ion concentration analysis devices, wherein the online analyzers of the online ion concentration analysis devices are the same online analyzer. The respective detection of a plurality of solutions can be realized through one on-line analyzer, the investment of capital is reduced, and the utilization rate of the on-line analyzer is improved.
Description
Technical Field
The invention relates to the technical field of ion concentration detection, in particular to an online ion concentration analysis device and analysis equipment.
Background
In industrial production, the concentration of ions in a solution needs to be monitored in real time due to the requirements of the production process. For example, in steel production, products produced in a manner similar to coating lines require equipment that passes through multiple acid and base solution tanks, requiring frequent monitoring of the acid, base or metal ion concentration of the solution in each tank. Currently, manual sampling is mostly adopted for off-line analysis, the sampling analysis mode needs manual intervention, the detection result has large hysteresis and manual operation errors can be introduced; the ion concentration detection is also performed by adopting an online analyzer, but the online analyzer analyzes the solution in the storage tank once at intervals, and a control valve is needed to control the opening and closing of the solution conveying pipeline, so the solution does not flow all the time, the detected solution cannot be the latest solution, and the accuracy of the detection result cannot be ensured.
Disclosure of Invention
The invention aims to provide an online ion concentration analysis device and analysis equipment, which can enable a detected solution to circularly flow and ensure the accuracy of a detection result.
In order to achieve the above purpose, the present invention provides an online ion concentration analysis apparatus, which includes a pretreatment pipeline, a delivery pipeline, a return pipeline and an online analyzer, wherein an input end of the pretreatment pipeline is provided with a circulation sampling pump, the circulation sampling pump is connected with a solution tank to extract a solution in the solution tank, input ends of the delivery pipeline and the return pipeline are both connected with an output end of the pretreatment pipeline, an output end of the delivery pipeline is connected with the online analyzer, and an output end of the return pipeline is connected with the solution tank.
Optionally, a filtering component is further arranged on the pretreatment pipeline, the filtering component is located behind the circulating sampling pump, the filtering component comprises a primary filtering unit and a secondary filtering unit which are connected in series on the pretreatment pipeline, and the filtering precision of the primary filtering unit is lower than that of the secondary filtering unit.
Optionally, the primary filtering unit includes two first security filters connected in parallel to the pretreatment pipeline, the secondary filtering unit includes a second security filter connected in series to the pretreatment pipeline, and the filtering accuracy of the first security filter is lower than that of the second security filter.
Optionally, the first-stage filtering unit further includes a differential pressure gauge, and a high-pressure side and a low-pressure side of the differential pressure gauge are respectively connected in parallel with the input end and the output end of the first safety filter.
Optionally, a heat exchanger is further disposed on the pretreatment pipeline, the heat exchanger is located behind the filter assembly, the online ion concentration analysis device further includes a cooling water circulation pipeline, and the cooling water circulation pipeline is connected with the heat exchanger.
Optionally, the online ion concentration analyzer further includes a pure water pressure tank for providing pure water, and the pure water pressure tank is connected to the online analyzer.
Optionally, the return line is further provided with a pressure gauge and a temperature gauge.
Optionally, a pressure reducing valve and a defoaming tank are further arranged on the pretreatment pipeline.
Based on this, the application also provides an online ion concentration analysis device, which comprises a plurality of online ion concentration analysis devices, wherein the online analyzers of the online ion concentration analysis devices are the same online analyzer.
Optionally, a control valve is arranged between the output end of the conveying pipeline of each online ion concentration analysis device and the online analyzer, and the control valve is used for controlling the opening and closing of the conveying pipeline of each online ion concentration analysis device.
The invention provides an online ion concentration analysis device which comprises a pretreatment pipeline, a conveying pipeline, a return pipeline and an online analyzer, wherein a circulating sampling pump is arranged at the input end of the pretreatment pipeline, the input ends of the conveying pipeline and the return pipeline are both connected with the output end of the pretreatment pipeline, the circulating sampling pump is connected with a solution tank to extract solution in the solution tank, the output end of the conveying pipeline is connected with the online analyzer, and the output end of the return pipeline is connected with the solution tank. Make solution circulation flow all the time through setting up return line, can guarantee that the solution that detects is the newest solution, and then guaranteed the accuracy of testing result, and reduced the emission of waste liquid. Based on this, the application also provides an online ion concentration analysis device, which comprises a plurality of online ion concentration analysis devices, wherein the online analyzers of the online ion concentration analysis devices are the same online analyzer. The respective detection of a plurality of solutions can be realized through one on-line analyzer, the investment of capital is reduced, and the utilization rate of the on-line analyzer is improved.
Drawings
Fig. 1 is a schematic view of an on-line ion concentration analyzer according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an online ion concentration analysis apparatus according to an embodiment of the present invention.
Wherein the reference numerals are:
10-a pretreatment pipeline; 20-a conveying pipeline; 30-a return line; 40-an on-line analyzer; 50-cooling water circulation pipeline; 60-a pure water pressure tank; 70-a first waste pipe; 80-a second waste pipe;
110-solution tank; 120-a circulating sampling pump; 130-a pressure relief valve; 140-a defoaming tank; 150-a first security filter; 160-a second cartridge filter; 170-differential pressure gauge; 180-heat exchanger; 310-a pressure gauge; 320-a thermometer; 600-liquid level meter.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in fig. 1, the embodiment provides an online ion concentration analyzer, which includes a pretreatment pipeline 10, a delivery pipeline 20, a return pipeline 30 and an online analyzer 40, wherein an input end of the pretreatment pipeline 10 is provided with a circulation sampling pump 120, the circulation sampling pump 120 is connected to a solution tank 110 to extract a solution in the solution tank 110, input ends of the delivery pipeline 20 and the return pipeline 30 are both connected to an output end of the pretreatment pipeline 10, an output end of the delivery pipeline 20 is connected to the online analyzer 40, and an output end of the return pipeline 30 is connected to the solution tank 110.
Specifically, the online ion concentration analysis device that this embodiment provided is arranged in the ion concentration of real-time detection solution, preliminary treatment pipeline 10 is used for carrying out preliminary treatment such as decompression, filtration, cooling to solution, makes delivery pressure, the temperature of solution satisfy online analyzer 40's operation requirement and gets rid of impurity such as the particulate matter in the solution in order to avoid blockking up the pipeline or damaging online analyzer 40.
The input end of the pretreatment pipeline 10 is provided with a circulation sampling pump 120, and the circulation sampling pump 120 is connected with the solution tank 110 to realize the extraction of the solution. The pressure at which the solution is delivered in the pre-treatment line 10 is ensured by the use of a recirculating sample pump 120.
Referring to fig. 1, the preprocessing pipeline 10 is further provided with a filtering component, the filtering component is located behind the circulation sampling pump 120, the filtering component includes a first-stage filtering unit and a second-stage filtering unit connected in series on the preprocessing pipeline 10, and the filtering precision of the first-stage filtering unit is lower than that of the second-stage filtering unit. The filtering component is used for removing solid particles in the solution, the solid particles in the solution can be basically removed by arranging two stages of filtering units with different filtering precisions, the filtering effect is better, and impurities such as particles in the solution are prevented from blocking a pipeline or damaging the online analyzer 40.
Further, the primary filtering unit comprises two first security filters 150 connected in parallel to the pretreatment pipeline 10, the secondary filtering unit comprises a second security filter 160 connected in series to the pretreatment pipeline 10, and the filtering accuracy of the first security filter 150 is lower than that of the second security filter 160. The shell of the cartridge filter is generally made of stainless steel, tubular filter elements such as PP melt-blown filter elements, wire-fired filter elements, folded filter elements, titanium filter elements, activated carbon filter elements and the like are adopted as the filter elements inside the cartridge filter, and different filter elements are selected according to different filter media and design processes so as to meet the requirements of effluent quality. The device can be used for solid-liquid separation of various suspensions, and solution filtration with higher environmental requirements and higher filtration precision is realized. The cartridge filter has high filtering precision and better acid and alkali resistance, so the cartridge filter is more suitable for detecting the concentration of acid, alkali and metal ions in various solutions of a coating processing line.
In this embodiment, since the solution contains more particulate impurities, which may easily cause the first safety filter 150 to be clogged, by providing two first safety filters 150 connected in parallel, one of the first safety filters 150 may be used as a spare filter, and when the first safety filter 150 in operation is clogged or fails, the other first safety filter 150 may be opened to ensure the continuous operation of the apparatus, and the first safety filter 150 not in operation may be maintained or repaired. It should be understood that since the solution passing through the second cartridge filter 160 has been primarily filtered once, so that the second cartridge filter 160 is not easily blocked, one second cartridge filter 160 may be provided, and of course, two second cartridge filters 160 may be used, which is not limited in this application.
Referring to fig. 1, the primary filtering unit further includes a differential pressure gauge 170, and a high-pressure side and a low-pressure side of the differential pressure gauge 170 are respectively connected in parallel to the input end and the output end of the first safety filter 150. It can be understood that the two first safety filters 150 and the differential pressure gauge 170 are connected in parallel to the pretreatment line 10, and the differential pressure gauge 170 is used for collecting pressure information of the solution before and after being filtered by the first safety filter 150, and if the pressure difference of the solution before and after being filtered by the first safety filter 150 exceeds a set threshold, indicating that the first safety filter 150 may be blocked, and the like, at this time, the first safety filter 150 in operation may be closed, and the first safety filter 150 in standby may be opened, so as to ensure normal operation of the device. It should be understood that the differential pressure gauge 170 may be incorporated into a control system for controlling the automatic operation of the plant, for example, by a PLC controller, which automatically controls the switching of the two first safety filters 150 when receiving an alarm signal from the differential pressure gauge 170.
In this embodiment, the first security filter 150 and the second security filter 160 can be detachably connected to the pretreatment pipeline 10, so as to facilitate detachment and maintenance.
Referring to fig. 1, the pretreatment pipeline 10 is further provided with a pressure reducing valve 130 and a defoaming tank 140, and the pressure reducing valve 130 and the defoaming tank 140 are sequentially connected in series on the pretreatment pipeline 10. In this embodiment, the pressure reducing valve 130 and the defoaming tank 140 are both located between the circulation sampling pump 120 and the first-stage filtering unit, and the pressure reducing valve 130 is used to reduce the pressure of the solution, so as to ensure that the delivery pressure of the solution meets the use requirement of the online analyzer 40. The defoaming tank 140 is used for removing foams in the solution, and the accuracy of the detection result is ensured.
With reference to fig. 1, a heat exchanger 180 is further disposed on the pretreatment pipeline 10, the heat exchanger 180 is located behind the filter assembly, the online ion concentration analysis apparatus further includes a cooling water circulation pipeline 50, and the cooling water circulation pipeline 50 is connected to the heat exchanger 180. In this embodiment, the heat exchanger 180 is used to adjust the temperature of the solution, so as to ensure that the temperature of the solution meets the use requirement of the online analyzer 40. Specifically, the solution sequentially flows through the circulation sampling pump 120, the pressure reducing valve 130, the defoaming tank 140, the primary filtering unit and the secondary filtering unit and then enters the heat exchanger 180, meanwhile, the opening and closing of the water circulation pipeline are controlled through the control valve, so that cooling water flows through the water circulation pipeline, and the cooling water and the solution are subjected to heat transfer through the heat exchanger 180, so that the solution is cooled, and therefore the temperature of the solution meets the use requirement of the online analyzer 40. The present embodiment does not set any limit to the specific structure or type of the heat exchanger 180.
Similarly, the control valve can also be connected with the control system to realize the automatic control of the control valve.
Referring to fig. 1, the input ends of the conveying pipeline 20 and the return pipeline 30 are both connected to the output end of the pretreatment pipeline 10, the output end of the conveying pipeline 20 is connected to the online analyzer 40, and the output end of the return pipeline 30 is connected to the solution tank 110. In this embodiment, after the solution is processed by the heat exchanger 180, a part of the solution flows back to the solution tank 110 through the return line 30, and another part of the solution enters the online analyzer 40 through the delivery line 20. Make solution circulation flow all the time through setting up return line 30, can guarantee that the solution that detects is the newest solution, and then guaranteed the accuracy of testing result, and reduced the emission of waste liquid.
Referring to fig. 1, the return line 30 is further provided with a pressure gauge 310 and a temperature gauge 320. Since the solution flowing through the return line 30 is the same as the solution entering the on-line analyzer 40, the pressure gauge 310 and the temperature gauge 320 are provided on the return line 30 to detect the pressure and temperature of the solution entering the on-line analyzer 40, so as to monitor whether the temperature and pressure of the solution are normal.
It should be understood that the pressure gauge 310 and the temperature gauge 320 can be connected to the control system, and the control system can obtain the pressure and temperature of the solution entering the on-line analyzer 40 in real time, so as to feedback control the pressure reducing valve 130 and the cooling water circulation pipeline 50, thereby ensuring that the pressure and temperature of the solution can meet the use requirements of the on-line analyzer 40.
With continued reference to fig. 1, the online ion concentration analyzer further includes a pure water pressure tank 60 for supplying pure water, and the pure water pressure tank 60 is connected to the online analyzer 40. In this embodiment, the pure water pressure tank 60 provides pure water for the on-line analyzer 40, so that the on-line pipeline is cleaned after each detection is completed, and the next sample introduction and analysis are performed. In this embodiment, the pure water pressure tank 60 and the on-line analyzer 40 may be connected by a water inlet pipe, and the water inlet pipe may be controlled by providing a water inlet control valve.
In this embodiment, the pure water pressure tank 60 is provided with a liquid level meter 600, which facilitates real-time monitoring of liquid level changes in the pure water pressure tank 60 and ensures the supply of pure water necessary for the on-line analyzer 40.
In this embodiment, the on-line analyzer 40 may be connected to the waste recovery system via a first waste line 70.
In this embodiment, before detecting the sample solution, a part of the sample solution can be introduced in advance to rinse the pipeline, so as to ensure the accuracy of the detection result. The sample solution after the rinsing may be discharged through the first waste liquid discharge pipe 70 and the second waste liquid discharge pipe 80.
In this embodiment, the on-line ion concentration analyzer is housed in a stainless steel container having a frame structure, except that the circulation sampling pump 120 is installed near the sampling point of the solution tank 110. In addition, the connection point of the return line 30 to the solution tank 110 should be kept at a sufficient distance from the sampling point so as not to affect the test result.
In this embodiment, the online ion concentration analyzer may be connected to a control system, and the control system collects information of the pressure gauge 310, the pressure difference gauge 170, and the temperature gauge 320 and controls the opening and closing of each control valve, so as to control the automatic operation of the steps of rinsing, sampling, analyzing, cleaning, outputting (result, alarm), and the like. The full-automatic control of the whole device operation process is realized, manual intervention is not needed, the solution detection result and the device operation process are both recorded by historical data and are convenient to check at any time, and the operation state of the device can be monitored in real time.
Based on this, referring to fig. 2, the present embodiment further provides an online ion concentration analysis apparatus, which includes a plurality of online ion concentration analysis devices, and the online analyzers 40 of the plurality of online ion concentration analysis devices are the same online analyzer 40. That is, the online ion concentration analysis device is a multi-channel detection device, and the respective detection of a plurality of solutions can be realized by one online analyzer 40, so that the investment of the online ion concentration analysis device is reduced, and the utilization efficiency of the online analyzer 40 is improved.
In this embodiment, the online ion concentration analysis apparatus includes three online ion concentration analysis devices, and the three online ion concentration analysis devices share one online analyzer 40. The pretreatment pipeline 10, the return pipeline 30 and the delivery pipeline 20 of each online ion concentration analysis device are respectively arranged, and the cooling water circulation pipelines 50 of the three online ion concentration analysis devices can be supplied in a shunting manner through one water supply device.
Referring to fig. 2, a control valve is disposed between the output end of the conveying pipeline 20 of each online ion concentration analyzer and the online analyzer 40, and the control valve is used for controlling the opening and closing of the conveying pipeline 20 of each online ion concentration analyzer. It can be understood that the control system can control each control valve separately, so as to measure the ion concentrations of different solutions, and improve the utilization rate of the on-line analyzer 40.
In this embodiment, the on-line ion concentration analysis equipment is installed in a stainless steel container analysis small room with a frame structure except that the circulation sampling pump 120 needs to be installed nearby the sampling point of the solution tank. The small house is provided with a lifting lug for lifting the top, and is airtight, rainproof, dustproof and heat-insulating. External interfaces are reserved outside the small room, and the connection of field construction is facilitated.
To sum up, the embodiment of the invention provides an online ion concentration analysis device and analysis equipment, which comprise a pretreatment pipeline, a conveying pipeline, a return pipeline and an online analyzer, wherein the input end of the pretreatment pipeline is provided with a circulating sampling pump, the circulating sampling pump is connected with a solution tank to extract solution in the solution tank, the input ends of the conveying pipeline and the return pipeline are both connected with the output end of the pretreatment pipeline, the output end of the conveying pipeline is connected with the online analyzer, and the output end of the return pipeline is connected with the solution tank. Make solution circulation flow all the time through setting up return line, can guarantee that the solution that detects is the newest solution, and then guaranteed the accuracy of testing result, and reduced the emission of waste liquid. Based on this, the application also provides an online ion concentration analysis device, which comprises a plurality of online ion concentration analysis devices, wherein the online analyzers of the online ion concentration analysis devices are the same online analyzer. The respective detection of a plurality of solutions can be realized through one on-line analyzer, the investment of capital is reduced, and the utilization rate of the on-line analyzer is improved.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an online ion concentration analysis device, its characterized in that includes preliminary treatment pipeline, conveying pipeline, return line and online analysis appearance, the input of preliminary treatment pipeline is provided with the circulation sample pump, the circulation sample pump is connected with a solution tank in order to extract solution in the solution tank, conveying pipeline reaches the input of return line all with the output of preliminary treatment pipeline is connected, conveying pipeline's output with online analysis appearance is connected, return line's output with the solution tank is connected.
2. The on-line ion concentration analyzer according to claim 1, wherein a filtering assembly is further disposed on the pretreatment pipeline, the filtering assembly is located behind the circulation sampling pump, the filtering assembly comprises a primary filtering unit and a secondary filtering unit which are connected in series on the pretreatment pipeline, and the filtering precision of the primary filtering unit is lower than that of the secondary filtering unit.
3. The on-line ion concentration analyzer according to claim 2, wherein said primary filtering unit comprises two first security filters connected in parallel to said pretreatment line, and said secondary filtering unit comprises a second security filter connected in series to said pretreatment line, said first security filter having a filtering accuracy lower than that of said second security filter.
4. The on-line ion concentration analyzer of claim 3, wherein the primary filter unit further comprises a differential pressure gauge, wherein the high pressure side and the low pressure side of the differential pressure gauge are connected in parallel with the input end and the output end of the first safety filter, respectively.
5. The on-line ion concentration analyzer according to claim 2, wherein a heat exchanger is further disposed on the pretreatment pipe, the heat exchanger is located behind the filter assembly, and the on-line ion concentration analyzer further comprises a cooling water circulation pipe connected to the heat exchanger.
6. The on-line ion concentration analyzer according to claim 1, further comprising a pure water pressure tank for supplying pure water, the pure water pressure tank being connected to the on-line analyzer.
7. The on-line ion concentration analyzer as set forth in claim 1, wherein a pressure gauge and a temperature gauge are further provided on said return line.
8. The on-line ion concentration analyzer according to claim 1, wherein a pressure reducing valve and a defoaming tank are further provided on the pretreatment line.
9. An on-line ion concentration analyzing apparatus comprising a plurality of the on-line ion concentration analyzing devices according to any one of claims 1 to 8, wherein the on-line analyzers of the plurality of the on-line ion concentration analyzing devices are the same on-line analyzer.
10. The on-line ion concentration analyzing apparatus according to claim 9, wherein a control valve for controlling opening and closing of the transfer line of each on-line ion concentration analyzing device is provided between the output end of the transfer line of each on-line ion concentration analyzing device and the on-line analyzer.
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| CN202011073759.4A CN112229955A (en) | 2020-09-30 | 2020-09-30 | Online ion concentration analysis device and analysis equipment |
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Application publication date: 20210115 |
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