CN202502078U - Dynamic monitoring system for sodium ions - Google Patents
Dynamic monitoring system for sodium ions Download PDFInfo
- Publication number
- CN202502078U CN202502078U CN2012201092897U CN201220109289U CN202502078U CN 202502078 U CN202502078 U CN 202502078U CN 2012201092897 U CN2012201092897 U CN 2012201092897U CN 201220109289 U CN201220109289 U CN 201220109289U CN 202502078 U CN202502078 U CN 202502078U
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- monitoring system
- dynamic monitoring
- sodion
- column
- fluid reservoir
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Abstract
The utility model relates to a dynamic monitoring system for sodium ions. The dynamic monitoring system comprises a liquid storage tank, a plunger pump, a sample injection valve, an ion exchange separation column, a suppressed conductance monitoring device, a detector and a data recording processing device, wherein the plunger pump is connected with the liquid storage tank and the sample injection valve, the ion exchange separation column is connected with the sample injection valve and the suppressed conductance monitoring device, and the detector is connected with the suppressed conductance monitoring device and the data recording processing device. Compared with the prior art, the dynamic monitoring system has the advantages that the monitoring method is convenient, the instrument is simple in maintenance, the sensitivity is good, the measuring accuracy is high and the like.
Description
Technical field
The utility model relates to a kind of monitoring system, especially relates to a kind of sodion dynamic monitoring system.
Background technology
Sodium ions content is one of important indicator of generating plant therrmodynamic system water and steam quality.When carrying the sodion of certain content in the steam; Can cause the salification and the corrosion of heat power equipments such as high temperature conduit and steam turbine in the therrmodynamic system; This not only can the direct threats unit safe and stable operation; But also can cause enormous economic loss, so must carry out strictness control and monitoring to sodium ions content in the power plant thermal system steam to power plant.In addition, along with developing rapidly of power industry, the improving constantly of unit parameter, to the requirement of water and steam quality also in continuous lifting.The measuring technology of sodium ions content is also upgraded and raising corresponding in the therrmodynamic system steam, and present stage, detection method comparatively commonly used was generally detection of dynamic method and online detection method.The influence of many-sided factors such as environment temperature, detected solution become to be grouped into because detection of dynamic method and the test result of online detection method also receive to a certain extent, flow velocity; The minimum detectability that in the practice of present stage, can measure according to stability requirement (0.03PNa) the detection of dynamic method of instrument is 0.69 μ g/L; But the sodium ions content actual value maybe be lower in the high pressure high temperature turbosets steam; That is to say that supervision index and method for measuring are closely related.Under this background, attempt to improve sodium ions content detects in the therrmodynamic system steam accuracy and reliability, thereby supervise and operation control method provides stronger foundation and guarantee for power plant chemistry.Also can handle regeneration simultaneously technical support is provided, reference frame to be provided unit operation technology mode and process modification to condensate.
Summary of the invention
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence the sodion that a kind of method of testing is easy, instrument maintenance is simple, sensitivity is good, accuracy of measurement is high dynamic monitoring system to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of sodion dynamic monitoring system comprises:
Fluid reservoir;
Ram pump: be connected with fluid reservoir;
Sampling valve: be connected with ram pump;
Ion-exchange separating column: be connected with sampling valve;
Suppress conductive detection device: be connected with the ion-exchange separating column;
Detecting device: be connected with inhibition conductivity monitoring equipment:
Data recording and processing device: be connected with detecting device.
Described fluid reservoir is for storing the fluid reservoir of leacheate.
Described ion-exchange separating column is made up of guard column and analytical column series connection.
Described inhibition conductivity monitoring equipment is connected and composed by suppressed column and conductance cell.
Described data recording and processing device is made up of display, main frame and keyboard.
Testing sample gets into system through sampling valve; Leacheate is brought testing sample into the ion-exchange separating column; Sample separates into discontinuous bands of a spectrum on the ion-exchange separating column; Obtain conductivity through device detection to be detected after suppressing conductive detection device, conductivity is counted as the concentration of sodion through the data recording and processing device.
Compared with prior art, the utility model method of testing is easy, instrument maintenance is simple, sensitivity is good, accuracy of measurement is high.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
A kind of sodion dynamic monitoring system, its structure is as shown in Figure 1, comprising:
Fluid reservoir 1; Ram pump 2: be connected with fluid reservoir 1; Sampling valve 3: be connected with ram pump 2; Ion-exchange separating column: be connected with sampling valve 3; Suppress conductive detection device: be connected with the ion-exchange separating column; Detecting device 8: be connected with inhibition conductivity monitoring equipment: data recording and processing device 9: be connected with detecting device 8.Fluid reservoir 1 is for storing the fluid reservoir of leacheate.5 series connection constitute the ion-exchange separating column with analytical column by guard column 4.Suppressing the conductivity monitoring equipment is connected and composed by suppressed column 6 and conductance cell 7.Data recording and processing device 9 is made up of display, main frame and keyboard.
Testing sample is through sampling valve 3 entering systems; Leacheate is brought testing sample into the ion-exchange separating column; Sample separates into discontinuous bands of a spectrum on the ion-exchange separating column; Obtain conductivity through device 8 detections to be detected after suppressing conductive detection device, conductivity is counted as the concentration of sodion through data recording and processing device 9.
Through three kinds of sodium ions content detection side ratio juris such as the chromatography of ions, dynamic test method and on-line testing method and Study of test method are compared.Attempt to improve sodium ions content detects in the therrmodynamic system steam accuracy and reliability, thereby supervise and operation control method provides stronger foundation and guarantee for power plant chemistry.
Dynamic test method and on-line testing method all are based on selects Na for use
+Select electrode, mercurous chloride electrode is done the sodion detection method of the chemical potential method of testing principle of reference.As traditional sodion detection method, it has advantages such as method of testing is easy, instrument maintenance is simple.But when the sample of the low sodium ions content of test, it is not high to expose measurement sensitivity yet, is subject to problems such as such environmental effects, test error are bigger.Test accuracy can't satisfy the requirement of high pressure high temperature turbosets steam test gradually.
It has that selectivity is good, sensitivity is higher, can measure multi-component advantage simultaneously the chromatography of ions, in the high purity water field tests, is used widely.Become gradually at high pressure high temperature turbosets under the background of thermal power generation main force unit, for the also lifting day by day of test request of sodion in the steam.The chromatography of ions can rely on its plurality of advantages to be promoted the use gradually.
Claims (5)
1. a sodion dynamic monitoring system is characterized in that, this system comprises:
Fluid reservoir;
Ram pump: be connected with fluid reservoir;
Sampling valve: be connected with ram pump;
Ion-exchange separating column: be connected with sampling valve;
Suppress the conductivity monitoring device: be connected with the ion-exchange separating column;
Detecting device: be connected with inhibition conductivity monitoring equipment:
Data recording and processing device: be connected with detecting device.
2. a kind of sodion dynamic monitoring system according to claim 1 is characterized in that, described fluid reservoir is for storing the fluid reservoir of leacheate.
3. a kind of sodion dynamic monitoring system according to claim 1 is characterized in that, described ion-exchange separating column is made up of guard column and analytical column series connection.
4. a kind of sodion dynamic monitoring system according to claim 1 is characterized in that, described inhibition conductivity monitoring equipment is connected and composed by suppressed column and conductance cell.
5. a kind of sodion dynamic monitoring system according to claim 1 is characterized in that described data recording and processing device is made up of display, main frame and keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201092897U CN202502078U (en) | 2012-03-21 | 2012-03-21 | Dynamic monitoring system for sodium ions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201092897U CN202502078U (en) | 2012-03-21 | 2012-03-21 | Dynamic monitoring system for sodium ions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502078U true CN202502078U (en) | 2012-10-24 |
Family
ID=47038689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201092897U Expired - Lifetime CN202502078U (en) | 2012-03-21 | 2012-03-21 | Dynamic monitoring system for sodium ions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344736A (en) * | 2013-07-11 | 2013-10-09 | 国家电网公司 | Method for detecting content of sodium ions in water vapor of thermodynamic system by using ion chromatography |
-
2012
- 2012-03-21 CN CN2012201092897U patent/CN202502078U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344736A (en) * | 2013-07-11 | 2013-10-09 | 国家电网公司 | Method for detecting content of sodium ions in water vapor of thermodynamic system by using ion chromatography |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |