CN215866563U - Portable dissolved oxygen meter counter-measuring device suitable for nuclear power plant - Google Patents
Portable dissolved oxygen meter counter-measuring device suitable for nuclear power plant Download PDFInfo
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- CN215866563U CN215866563U CN202121169746.7U CN202121169746U CN215866563U CN 215866563 U CN215866563 U CN 215866563U CN 202121169746 U CN202121169746 U CN 202121169746U CN 215866563 U CN215866563 U CN 215866563U
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- dissolved oxygen
- oxygen meter
- measuring
- portable dissolved
- power plant
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Abstract
The utility model provides a portable dissolved oxygen meter reverse measuring device suitable for nuclear power plant uses, includes portable dissolved oxygen meter, and portable dissolved oxygen meter upper portion is measuring probe, and the measuring ring is installed to measuring probe. The invention avoids manual squeezing and bottle washing in the reverse measurement process, thereby avoiding the accidental sputtering of the chemical reagent flowing through the radioactive instrument due to the disconnection of the hose.
Description
Technical Field
The invention relates to the field of power plant chemistry, in particular to a portable dissolved oxygen meter reverse measurement device suitable for a nuclear power plant.
Background
The dissolved oxygen content of the first loop water and the second loop water of the nuclear power plant needs to be reduced to a lower level so as to reduce the corrosion of thermodynamic equipment, at present, each power plant mostly uses portable dissolved oxygen to measure the dissolved oxygen content in water, and the instrument needs to be calibrated and reversely measured regularly to verify the measurement accuracy.
The general counter-measuring method is that the non-oxygen water is prepared in a laboratory, the non-oxygen water is poured into a washing bottle and then is connected with an inlet pipeline of a portable dissolved oxygen meter, the non-oxygen water continuously passes through an instrument measuring probe in a mode of squeezing the washing bottle to form an anaerobic environment, and the non-oxygen water is recycled to another washing bottle through an outlet pipeline of the instrument.
Disclosure of Invention
The invention aims to: the reverse measurement method of the portable dissolved oxygen meter is improved, the using amount of chemical reagents is reduced, the qualified rate of reverse measurement after calibration is effectively improved, the operability is improved, and the daily use is facilitated.
The technical scheme of the invention is as follows: the utility model provides a portable dissolved oxygen meter reverse measuring device suitable for nuclear power plant uses, includes portable dissolved oxygen meter, and portable dissolved oxygen meter upper portion is measuring probe, and the measuring ring is installed to measuring probe.
A small pit is formed between the measuring ring and the measuring probe.
Using a rubber head dropper to suck the oxygen-free water solution from the rubber head dropper bottle, and dropping the oxygen-free water solution into a small pit formed between the measuring ring and the measuring probe
The oxygen-free aqueous solution was allowed to completely cover the surface of the measurement probe.
After use, the surface of the measuring probe is wiped by using absorbent paper.
And after the use is finished, the measuring ring is detached.
The invention has the following remarkable effects:
1. less chemical reagent is consumed (only about 10g of anhydrous sodium bisulfite is needed each time);
2. the reverse measurement process is simple, time and labor are saved (only about 5min), and the operation is convenient;
3. the oxygen-free water covers the measuring probe of the instrument, a bottle washing is not needed in the reverse measurement process, the phenomenon of poor sealing is avoided, and the qualified rate of the reverse measurement is effectively improved;
4. the bottle washing process is not manually extruded in the reverse measurement process, and the accidental sputtering of the chemical reagent flowing through the radioactive instrument due to the disconnection of the hose is avoided.
Drawings
FIG. 1 is a schematic diagram of a portable dissolved oxygen meter according to the present invention;
FIG. 2 is a schematic view of a measurement ring of the present invention;
FIG. 3 is a schematic view of a glue dropper bottle of the present invention;
in the figure: a portable dissolved oxygen meter 1, a measuring probe 2, a measuring ring 3, a rubber head dropping bottle 4 and a rubber head dropper 5
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
A portable dissolved oxygen meter counter-measuring device suitable for a nuclear power plant comprises a portable dissolved oxygen meter 1, wherein a measuring probe 2 is arranged at the upper part of the portable dissolved oxygen meter 1, a measuring ring 3 is arranged on the measuring probe 2, and a small pit is formed between the measuring ring 3 and the measuring probe 2;
during operation, after the portable dissolved oxygen meter is calibrated, the measuring ring 3 is arranged on the upper part of the measuring probe 2. The prepared anaerobic aqueous solution is filled into a rubber head dropping bottle 4, the anaerobic aqueous solution is absorbed from the rubber head dropping bottle 4 by using a rubber head dropper 5 and is dropped into a small pit formed between the measuring ring 3 and the measuring probe 2, so that the anaerobic aqueous solution completely covers the surface of the measuring probe 2, the portable dissolved oxygen meter 1 is started to enter a measuring mode, the indication number reduction trend is observed, and a qualified reverse measuring result is recorded. And wiping off the oxygen-free aqueous solution on the surface of the measuring probe 2 by using absorbent paper after the reverse measurement is qualified, and detaching the measuring ring 3.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a portable dissolved oxygen table reverse measurement device suitable for nuclear power plant uses which characterized in that: the portable dissolved oxygen meter comprises a portable dissolved oxygen meter (1), wherein a measuring probe (2) is arranged on the upper part of the portable dissolved oxygen meter (1), and a measuring ring (3) is arranged on the measuring probe (2).
2. The portable dissolved oxygen meter counter-measuring device suitable for use in a nuclear power plant according to claim 1, wherein: a small pit is formed between the measuring ring (3) and the measuring probe (2).
3. The portable dissolved oxygen meter counter-measuring device suitable for use in a nuclear power plant according to claim 2, wherein: using a rubber head dropper (5) to suck the anaerobic aqueous solution from a rubber head dropper bottle (4) and drop the anaerobic aqueous solution into a small pit formed between the measuring ring (3) and the measuring probe (2)
4. The portable dissolved oxygen meter counter-measuring device suitable for use in a nuclear power plant according to claim 3, wherein: the oxygen-free aqueous solution is made to completely cover the surface of the measuring probe (2).
5. The portable dissolved oxygen meter counter-measuring device suitable for use in a nuclear power plant according to claim 1, wherein: after use, the surface of the measuring probe (2) is wiped by using absorbent paper.
6. The portable dissolved oxygen meter counter-measuring device suitable for use in a nuclear power plant according to claim 5, wherein: after use, the measuring ring (3) is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169746.7U CN215866563U (en) | 2021-05-28 | 2021-05-28 | Portable dissolved oxygen meter counter-measuring device suitable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169746.7U CN215866563U (en) | 2021-05-28 | 2021-05-28 | Portable dissolved oxygen meter counter-measuring device suitable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215866563U true CN215866563U (en) | 2022-02-18 |
Family
ID=80313420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121169746.7U Active CN215866563U (en) | 2021-05-28 | 2021-05-28 | Portable dissolved oxygen meter counter-measuring device suitable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215866563U (en) |
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2021
- 2021-05-28 CN CN202121169746.7U patent/CN215866563U/en active Active
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