CN213750101U - Hydrogen conductivity on-line measuring device - Google Patents
Hydrogen conductivity on-line measuring device Download PDFInfo
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- CN213750101U CN213750101U CN202022814019.3U CN202022814019U CN213750101U CN 213750101 U CN213750101 U CN 213750101U CN 202022814019 U CN202022814019 U CN 202022814019U CN 213750101 U CN213750101 U CN 213750101U
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Abstract
The utility model discloses a hydrogen conductivity on-line measuring device, which comprises a hydrogen type cation exchange column, a sample water input mechanism, a demineralized water input mechanism and a detection mechanism, wherein the sample water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting sample water into the hydrogen type cation exchange column; the demineralized water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting demineralized water into the hydrogen type cation exchange column; the detection mechanism comprises a flow cell and a detector, one end of the flow cell is communicated with an outlet of the hydrogen type cation exchange column, and the detector is arranged in the flow cell and used for detecting the conductivity of liquid in the flow cell. The utility model has the advantages that: through increasing a demineralized water input mechanism in the import of hydrogen type cation exchange column, before the unit starts, wash hydrogen type cation exchange column with demineralized water earlier, wash the impurity that resin of hydrogen type cation exchange column is appeared at long-time shutdown in-process fast to can make the unit start fast.
Description
Technical Field
The utility model belongs to the technical field of hydrogen conductivity measures technique and specifically relates to a hydrogen conductivity on-line measuring device is related to.
Background
The method for measuring the hydrogen conductivity comprises the steps of enabling a water sample to pass through a hydrogen type cation exchange column, converting impurity cations such as ammonia and sodium ions in the water sample into hydrogen ions, and measuring the conductivity of the water sample obtained after hydrogen ion exchange, namely the hydrogen conductivity of the water sample. The hydrogen conductivity inhibits the influence of ammonia on the detection of water vapor quality, and in order to prevent metal corrosion in a thermodynamic system of a power plant, the ammonia is added to water for treatment. The ammonia is a volatile substance, and is mostly left in the thermodynamic system for circulation except that a small part of the ammonia is consumed by reaction with carbonic acid, the ammonia content in the thermodynamic system is about 1-3 mg/L, and when the unit normally operates, the contents of other impurity components in desalted water, condensed water and steam are basically microgram level, and milligram level ammonia causes that common conductivity detection cannot reflect other impurity components, so that after ammonium radicals are removed through a hydrogen type cation exchange column, the content of anions in water vapor can be accurately reflected by detecting the conductivity, and therefore, the change of the water vapor quality can be accurately reflected by the hydrogen conductivity.
The hydrogen type cation exchange column is one of the most important components of a hydrogen conductivity measuring device and is the key for the accurate and stable measurement of the hydrogen conductivity. As the reasons of peak regulation requirement or unit maintenance and the like, the unit needs to be started and stopped at intervals, in the shutdown process of the unit, the hydrogen conductivity meter is in a standby state, and the resin in the hydrogen type cation exchange column can generate impurities in the shutdown process, so that the accuracy of the hydrogen conductivity meter is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide an online hydrogen conductivity measurement device, which is used to solve the technical problem that the conventional online hydrogen conductivity measurement device needs to clean the hydrogen type cation exchange column for a long time during the start of the unit, so that the unit is difficult to start quickly.
An on-line hydrogen conductivity measuring device comprising:
a hydrogen type cation exchange column;
the sample water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting sample water into the hydrogen type cation exchange column;
the desalted water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting desalted water into the hydrogen type cation exchange column;
detection mechanism, detection mechanism includes flow-through cell and detector, the one end of flow-through cell with the export intercommunication of hydrogen type cation exchange column, the detector set up in the flow-through cell and be used for detecting the conductivity of the liquid in the flow-through cell.
Further, sample water input mechanism includes a sample water pipe and a water valve, the sample water pipe with the import intercommunication of hydrogen type cation exchange column and be used for to inject sample water in the hydrogen type cation exchange column, first water valve set up in on the sample water pipe.
Furthermore, the demineralized water input mechanism comprises a demineralized water pipe and a second water valve, the demineralized water pipe is communicated with the inlet of the hydrogen type cation exchange column and is used for injecting demineralized water into the hydrogen type cation exchange column, and the second water valve is arranged on the demineralized water pipe.
Further, the detector comprises a conductivity probe and a conductivity meter, the conductivity probe is arranged in the flow cell, and the input end of the conductivity meter is electrically connected with the conductivity probe.
Further, the other end of the flow-through tank is communicated with a drainage ditch.
Compared with the prior art, the utility model provides a technical scheme's beneficial effect is: through increasing a demineralized water input mechanism in the import of hydrogen type cation exchange column, before the unit starts, wash hydrogen type cation exchange column with demineralized water earlier, wash the impurity that resin of hydrogen type cation exchange column is appeared at long-time shutdown in-process fast to can make the unit start fast.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an online hydrogen conductivity measurement device provided by the present invention;
in the figure: the device comprises a 1-hydrogen type cation exchange column, a 2-sample water input mechanism, a 3-desalted water input mechanism, a 4-detection mechanism, a 21-sample water pipe, a 22-first water valve, a 31-desalted water pipe, a 32-second water valve, a 41-flow cell, a 42-detector, a 421-conductivity probe and a 422-conductivity meter.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Referring to fig. 1, the present invention provides an online hydrogen conductivity measuring device, which includes a hydrogen-type cation exchange column 1, a sample water input mechanism 2, a demineralized water input mechanism 3 and a detection mechanism 4.
Referring to fig. 1, the sample water input mechanism 2 is communicated with an inlet of the hydrogen type cation exchange column 1 and is used for injecting sample water into the hydrogen type cation exchange column 1. The demineralized water input mechanism 3 is communicated with an inlet of the hydrogen type cation exchange column 1 and is used for injecting demineralized water into the hydrogen type cation exchange column 1.
Referring to fig. 1, the detection mechanism 4 includes a flow cell 41 and a detector 42, one end of the flow cell 41 is communicated with the outlet of the hydrogen type cation exchange column 1, and the detector 42 is disposed in the flow cell 41 and is used for detecting the conductivity of the liquid in the flow cell 41.
Specifically, please refer to fig. 1, the sample water input mechanism 2 includes a sample water pipe 21 and a first water valve 22, the sample water pipe 21 is communicated with the inlet of the hydrogen type cation exchange column 1 and is used for injecting sample water into the hydrogen type cation exchange column 1, the sample water pipe 21 is led out from the unit, and the sample water itself therein has pressure, therefore, the utility model discloses in need not set up corresponding pressure device, the first water valve 22 set up on the sample water pipe 21.
Specifically, please refer to fig. 1, the demineralized water input mechanism 3 includes a demineralized water pipe 31 and a second water valve 32, the demineralized water pipe 31 with the import intercommunication of the hydrogen type cation exchange column 1 and be used for to inject demineralized water into the hydrogen type cation exchange column 1, the demineralized water pipe 31 is drawn out from the demineralized water main pipe of the power plant, the demineralized water itself in it is pressed, therefore the utility model discloses in need not set up corresponding pressure device, the second water valve 32 set up in on the demineralized water pipe 31.
Further, referring to fig. 1, the detector 42 includes a conductivity probe 421 and a conductivity meter 422, the conductivity probe 421 is disposed in the flow cell 41, and an input end of the conductivity meter 422 is electrically connected to the conductivity probe 421.
Preferably, referring to fig. 1, the other end of the flow cell 41 is communicated with a drainage ditch.
For better understanding of the present invention, the following detailed description is made with reference to fig. 1 for the working process of the hydrogen conductivity online measurement device provided by the present invention: before the unit is started, the first water valve 23 is closed, the second water valve 33 is opened, the desalted water enters the hydrogen type cation exchange column 1, so as to clean the hydrogen type cation exchange column 1 to remove impurities precipitated during the long-time shutdown process of the resin of the hydrogen type cation exchange column 1, the washed desalted water enters the flow cell 41, the conductivity of the desalted water in the flow cell 41 is continuously detected through the conductivity meter 422, when the detected conductivity is less than or equal to the conductivity of the desalinated water (which has been previously determined), then the cleaning of the hydrogen type cation exchange column 1 is finished, then the second water valve 33 is closed, the first water valve 23 is opened, the sample water enters the hydrogen type cation exchange column 1 and then flows into the flow cell 41, in this process, the conductivity of the sample water in the flow cell 41 is continuously detected by the conductivity meter 422 to realize the on-line measurement of the hydrogen conductivity of the sample water.
To sum up, the utility model discloses an import at hydrogen type cation exchange column 1 increases a demineralized water input mechanism 3, before the unit starts, washes hydrogen type cation exchange column 1 with demineralized water earlier, washes the impurity that the resin of hydrogen type cation exchange column 1 appeared at long-time shutdown in-process fast to can make the unit start fast.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. An on-line hydrogen conductivity measuring device, comprising:
a hydrogen type cation exchange column;
the sample water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting sample water into the hydrogen type cation exchange column;
the desalted water input mechanism is communicated with an inlet of the hydrogen type cation exchange column and is used for injecting desalted water into the hydrogen type cation exchange column;
detection mechanism, detection mechanism includes flow-through cell and detector, the one end of flow-through cell with the export intercommunication of hydrogen type cation exchange column, the detector set up in the flow-through cell and be used for detecting the conductivity of the liquid in the flow-through cell.
2. The on-line hydrogen conductivity measurement device according to claim 1, wherein the sample water input mechanism comprises a sample water pipe and a first water valve, the sample water pipe is communicated with the inlet of the hydrogen type cation exchange column and is used for injecting sample water into the hydrogen type cation exchange column, and the first water valve is disposed on the sample water pipe.
3. The on-line hydrogen conductivity measurement device according to claim 1, wherein the demineralized water input mechanism comprises a demineralized water pipe and a second water valve, the demineralized water pipe is communicated with the inlet of the hydrogen type cation exchange column and is used for injecting demineralized water into the hydrogen type cation exchange column, and the second water valve is arranged on the demineralized water pipe.
4. The on-line hydrogen conductivity measurement device according to claim 1, wherein the detector comprises a conductivity probe and a conductivity meter, the conductivity probe is embedded in the flow cell, and an input end of the conductivity meter is electrically connected with the conductivity probe.
5. The on-line hydrogen conductivity measurement device according to claim 1, wherein the other end of the flow cell is communicated with a drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022814019.3U CN213750101U (en) | 2020-11-27 | 2020-11-27 | Hydrogen conductivity on-line measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022814019.3U CN213750101U (en) | 2020-11-27 | 2020-11-27 | Hydrogen conductivity on-line measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN213750101U true CN213750101U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022814019.3U Active CN213750101U (en) | 2020-11-27 | 2020-11-27 | Hydrogen conductivity on-line measuring device |
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| CN (1) | CN213750101U (en) |
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2020
- 2020-11-27 CN CN202022814019.3U patent/CN213750101U/en active Active
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