CN217060182U - Be used for portable sodium ion concentration measurement device of nuclear power station - Google Patents
Be used for portable sodium ion concentration measurement device of nuclear power station Download PDFInfo
- Publication number
- CN217060182U CN217060182U CN202123140367.8U CN202123140367U CN217060182U CN 217060182 U CN217060182 U CN 217060182U CN 202123140367 U CN202123140367 U CN 202123140367U CN 217060182 U CN217060182 U CN 217060182U
- Authority
- CN
- China
- Prior art keywords
- sample water
- nuclear power
- sodium ion
- enters
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of nuclear power online chemical analysis, in particular to a mobile sodium ion concentration measuring device for a nuclear power station, sample water under pressure enters a pipeline from a sample water inlet under pressure in a system, and then enters a flow-limiting pipe through a bypass valve, a pressure regulating valve and a flowmeter in sequence; then, sample water enters a diffusion tube in an alkalizer bottle through a flow limiting tube, and enters a measuring tank after the pH value of the sample water is adjusted; finally, sodium ion readings are obtained through measurement of the sodium meter transmitter and displayed on a panel of the sodium meter transmitter, and sample water is discharged from a sample water main discharge port; a reference liquid bottle is connected with the measuring cell; at the bypass valve, the sample water is divided into two paths, one path flows through the pressure regulating valve, and the other path is directly discharged from the sample water main discharge port. The utility model discloses measuring device has realized the continuous of each system's of nuclear power unit sodion, real-time supervision, can in time monitor each system sodion concentration content, has solved the long scheduling problem consuming time among the manual sampling process.
Description
Technical Field
The utility model belongs to the technical field of the online chemical analysis of nuclear power, concretely relates to be used for portable sodium ion concentration measurement device of nuclear power station.
Background
Nuclear power plant steam generator water pair sodium ion (Na) + ) Corresponding regulatory requirements are set, and when the parameters exceed the regulatory requirements, corresponding corrective action requirements must be taken to restore water quality. Particularly, when the seawater side of a titanium pipe of the condenser leaks, even if the seawater with high salt content leaks slightly, the quality of feed water is seriously deteriorated, chemical parameters are obviously changed, and a unit is stopped and stopped when the seawater is serious. High-concentration sodium ions enter the secondary loop and the steam generator, can cause damage to equipment and pipelines, and seriously endangers the safe and stable operation of the unit.
The seawater leakage is found in time and measures are taken to effectively avoid the machine set from being withdrawn, so that the safe and stable operation of the machine set is ensured. Therefore, in the nuclear power station, an online sodium ion monitoring device, called a sodium meter for short, is required to be arranged at each point of the two loops to monitor the sodium ion value of the system in real time. When the sodium meter is used for measurement, measurement deviation occurs due to factors such as self electrode aging and diffusion tube breakage, measurement fluctuation is generated, under the unit operation condition, the sodium meter measurement fluctuation influences correct judgment of an operator on the unit state, and when the meter measurement deviation occurs, manual analysis and comparison are needed. From the time when the personnel are arranged to take a sample to the time when the results are analyzed in a laboratory, two hours are needed at the fastest time, and the method is time-consuming and labor-consuming.
Therefore, a mobile sodium ion concentration measuring device for a nuclear power station needs to be designed urgently, the abnormal fluctuation sodium meter is subjected to rapid comparison, and the true value of sodium ions in a system loop is confirmed in time, so that the correct judgment of chemistry and operating personnel on the water quality of the system is ensured, correct response is made, and the safe and stable operation of a unit is ensured.
Disclosure of Invention
An object of the utility model is to provide a be used for portable sodium ion concentration measurement device of nuclear power station, realize the real-time supervision to the important index sodium ion of nuclear power station quality of water.
The technical scheme of the utility model as follows:
a mobile sodium ion concentration measuring device for a nuclear power station is integrated in a cabinet body;
a sodium meter transmitter, a reference liquid bottle, a flowmeter, a measuring pool, a pressure regulating valve, an alkalizer bottle, a bypass valve, a sample water main discharge port, a pressure sample water inlet, a flow limiting pipe and a diffusion pipe are fixedly arranged on the back plate and the side plate in the cabinet body;
the system pressure sample water enters a pipeline from a pressure sample water inlet, and then enters a flow limiting pipe through a bypass valve, a pressure regulating valve and a flowmeter in sequence;
then the sample water enters a diffusion tube in an alkalizer bottle through a flow limiting tube, and enters a measuring tank after the pH value of the sample water is adjusted;
finally, sodium ion reading is obtained through measurement of a sodium meter transmitter, the sodium ion reading is displayed on a panel of the sodium meter transmitter, and sample water is discharged from a sample water main discharge port;
a reference liquid bottle is connected with the measuring cell and used for providing a stable potential value for the reference electrode and ensuring the measuring accuracy;
at the bypass valve, the sample water is divided into two paths, one path of the sample water flows through the pressure regulating valve, and the other path of the sample water is directly discharged from the sample water main discharge port;
a storage battery is arranged on a bottom plate in the cabinet body;
the switch of the storage battery and the sodium meter transmitter and the sample water main discharge port, the pressure sample water inlet and the non-pressure sample water inlet are positioned on the same side of the cabinet body.
An air pump is arranged in the cabinet body, and air introduced by the air pump enters the measuring tank to thoroughly mix sample water to obtain quick response.
The non-pressure sample water of the system enters the pipeline from the non-pressure sample water inlet, and enters the pressure sample water pipeline from the front end of the bypass valve after being pumped by the sampling pump.
And quick-inserting ports are respectively arranged at the pressure sample water inlet and the non-pressure sample water inlet and are adapted to various connectors of different models.
The storage battery can be used as an off-line power supply and can also be externally connected with a power supply.
And a visual window is arranged on the cabinet door and used for inspecting and observing the reading of the instrument and the sampling process.
The universal wheels are mounted at the bottom of the cabinet body, and therefore the universal wheels can conveniently reciprocate among measuring points in a nuclear power field.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses measuring device has realized the continuous, real-time supervision of each system sodium ion of nuclear power unit, can in time monitor each system sodium ion concentration content, has solved the long scheduling problem of consuming time in the manual sampling process;
(2) the utility model adopts a sealed measuring tank to effectively separate the electric components of the device from the liquid sample in the measuring tank, thereby avoiding the short circuit of the electric element caused by the spraying of the measured sample and ensuring the safety of the device;
(3) the utility model adopts the integrated installation of the sodium ion measuring panel and the storage battery, which is convenient for the transportation and the measuring operation of the instrument;
(4) the measuring device of the utility model is provided with the independent flowmeter, the regulating valve and the air pump on the sampling pipeline in the cabinet, which can keep the stable sample flow and ensure the stable and reliable measurement of the instrument;
(5) adopt the utility model discloses measuring device can in time confirm the true value of sodion in the nuclear power plant system loop, guarantees chemistry and operation personnel to the correct judgement of system quality of water and make the correct response, and reinforcing blowdown sodium table monitoring is redundant, avoids probably violating technical specification's operational incident and takes place, guarantees nuclear power unit safety and stability and moves.
Drawings
FIG. 1 is a schematic view of the inside of a cabinet of a measuring device;
FIG. 2 is a schematic view of a cabinet door of the measuring apparatus;
fig. 3 is a left side schematic view of the cabinet of the measuring device.
In the figure: 1. the device comprises a sodium meter transmitter, 2. a reference liquid bottle, 3. an air pump, 4. a flow meter, 5. a measuring tank, 6. a pressure regulating valve, 7. an alkalizing agent bottle, 8. a bypass valve, 9. a sampling pump, 10. a sample water main discharge port, 11. a pressure sample water inlet, 12. a non-pressure sample water inlet, 13. a flow limiting pipe, and 14. a diffusion pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The mobile sodium ion concentration measuring device for the nuclear power station, as shown in fig. 1-3, is integrated in a cabinet body, and a visual window is arranged on a cabinet door and is used for inspecting the reading of an observation instrument and sampling processes; the universal wheels are mounted at the bottom of the cabinet body, so that the universal wheels can conveniently reciprocate among measuring points in a nuclear power site.
A sodium meter transmitter 1, a reference liquid bottle 2, an air pump 3, a flowmeter 4, a measuring pool 5, a pressure regulating valve 6, an alkalizer bottle 7, a bypass valve 8, a sampling pump 9, a sample water main discharge port 10, a pressure sample water inlet 11, a non-pressure sample water inlet 12, a flow limiting pipe 13 and a diffusion pipe 14 are fixedly arranged on a back plate and a side plate in the cabinet body.
The system pressure sample water enters a pipeline from a pressure sample water inlet 11, and then sequentially passes through a bypass valve 8, a pressure regulating valve 6 and a flowmeter 4 to enter a flow limiting pipe 13; then the sample water enters a diffusion pipe 14 in an alkalizer bottle 7 through a flow limiting pipe 13, the pH value of the sample water is regulated by alkalization of the alkalizer in the alkalizer bottle 7, then the sample water enters a measuring pool 5, and air introduced by an air pump 3 enters the measuring pool 5 at the moment so as to thoroughly mix the sample water and obtain quick response; and finally, measuring by the sodium meter transmitter 1 to obtain a sodium ion reading, displaying on a panel of the sodium meter transmitter 1, and discharging the sample water from a sample water main discharge port 10. And a reference liquid bottle 2 is connected with the measuring cell 5 and used for providing a stable potential value for the reference electrode and ensuring the measuring accuracy.
At the bypass valve 8, the sample water is divided into two paths, one path of the sample water flows through the pressure regulating valve 6, and the other path of the sample water is directly discharged from the main sample water outlet 10, so that the flow direction of the sample water is changed, the water sample partial pressure control is realized, and the phenomenon that the pressure of a pipeline is suppressed due to overlarge water pressure, the flow rate of the sodium meter transmitter 1 is influenced, and the measured data is distorted is avoided.
The non-pressure sample water of the system enters the pipeline from the non-pressure sample water inlet 12, is pumped by the sampling pump 9 and then enters the pressure sample water pipeline from the front end of the bypass valve 8.
The sodium meter transmitter 1 can be an ORION 2111LL type transmitter, and the signal output is 4-20 mA. Wherein the measuring range of the sensor is 0.001ppb-10ppm, the precision is 0.01ppb, and the response time is less than 120 s.
The pressure sample water inlet 11 and the pressure sample water inlet 12 are respectively provided with a quick-plugging port which is adapted to joints of various types, so that the sampling pipelines of the system can be quickly connected, and the connection requirements of the sampling pipelines with different diameters in a nuclear power site are met.
The bottom plate in the cabinet body is provided with a storage battery which can be used as an off-line power supply (24VDC) to ensure that the continuous operation time is not less than 48 hours, and can also be supplied with power by an external power supply (220VAC) in real time.
The switch of battery and sodium meter changer locates the outside left side of the cabinet body respectively, is located the same one side of the cabinet body with sample water main discharge port 10, pressure sample water import 11 and non-pressure sample water import 12.
Claims (7)
1. The utility model provides a be used for portable sodium ion concentration measurement device of nuclear power station which characterized in that: is integrated in the cabinet body;
a sodium meter transmitter (1), a reference liquid bottle (2), a flowmeter (4), a measuring pool (5), a pressure regulating valve (6), an alkalizer bottle (7), a bypass valve (8), a sample water main discharge port (10), a pressure sample water inlet (11), a flow limiting pipe (13) and a diffusion pipe (14) are fixedly arranged on a back plate and a side plate in the cabinet body;
the system pressure sample water enters a pipeline from a pressure sample water inlet (11), and then sequentially passes through a bypass valve (8), a pressure regulating valve (6) and a flowmeter (4) to enter a flow limiting pipe (13);
then the sample water enters a diffusion tube (14) in an alkalizer bottle (7) through a flow limiting tube (13), and enters a measuring pool (5) after the pH value of the sample water is adjusted;
finally, sodium ion reading is obtained through measurement of the sodium meter transmitter (1), the sodium ion reading is displayed on a panel of the sodium meter transmitter (1), and sample water is discharged from a sample water main discharge port (10);
a reference liquid bottle (2) is connected with the measuring cell (5) and is used for providing a stable potential value for a reference electrode and ensuring the measuring accuracy;
at the bypass valve (8), the sample water is divided into two paths, one path of the sample water flows through the pressure regulating valve (6), and the other path of the sample water is directly discharged from the sample water main discharge port (10);
a storage battery is arranged on a bottom plate in the cabinet body;
the switch of the storage battery and the sodium meter transmitter is positioned on the same side of the cabinet body with the sample water main discharge port (10), the pressure sample water inlet (11) and the non-pressure sample water inlet (12).
2. The mobile sodium ion concentration measuring device for nuclear power plant as claimed in claim 1, wherein: an air pump (3) is arranged in the cabinet body, and air introduced by the air pump (3) enters the measuring tank (5) to thoroughly mix sample water to obtain quick response.
3. The mobile sodium ion concentration measuring device for nuclear power plant as claimed in claim 1, wherein: the non-pressure sample water of the system enters a pipeline from a non-pressure sample water inlet (12), and enters a pressure sample water pipeline from the front end of the bypass valve (8) after being pumped by the sampling pump (9).
4. A mobile sodium ion concentration measuring device for a nuclear power plant as claimed in claim 3, wherein: the pressure sample water inlet (11) and the non-pressure sample water inlet (12) are respectively provided with a quick-plugging port which is adapted to various connectors of different types.
5. The mobile sodium ion concentration measuring device for the nuclear power plant as recited in claim 1, wherein: the storage battery can be used as an off-line power supply and can also be externally connected with a power supply.
6. The mobile sodium ion concentration measuring device for nuclear power plant as claimed in claim 1, wherein: the cabinet door is provided with a visual window for inspecting the reading of the observation instrument and the sampling process.
7. The mobile sodium ion concentration measuring device for the nuclear power plant as recited in claim 1, wherein: the universal wheels are mounted at the bottom of the cabinet body, so that the universal wheels can conveniently reciprocate among measuring points in a nuclear power site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123140367.8U CN217060182U (en) | 2021-12-14 | 2021-12-14 | Be used for portable sodium ion concentration measurement device of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123140367.8U CN217060182U (en) | 2021-12-14 | 2021-12-14 | Be used for portable sodium ion concentration measurement device of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217060182U true CN217060182U (en) | 2022-07-26 |
Family
ID=82476880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123140367.8U Active CN217060182U (en) | 2021-12-14 | 2021-12-14 | Be used for portable sodium ion concentration measurement device of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217060182U (en) |
-
2021
- 2021-12-14 CN CN202123140367.8U patent/CN217060182U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101285479B1 (en) | Steam generator tube on-line leak monitoring and methodology by using ion chromatography in pwr | |
| CN110806428A (en) | Special pH measuring device for generator inner cooling water system and working method thereof | |
| WO2022193562A1 (en) | Intelligent verification and maintenance system and method for online chemical instruments | |
| CN113295486A (en) | Preparation method of standard solution for online detection of pH meter | |
| CN217060182U (en) | Be used for portable sodium ion concentration measurement device of nuclear power station | |
| CN112881639A (en) | On-site on-line intelligent testing and calibrating system for chemical instrument | |
| CN107202619A (en) | A kind of container boiling water water level measurement method and device based on multiple repairing weld | |
| CN107247096B (en) | Multi-channel online lithium ion concentration analysis instrument | |
| CN213265779U (en) | Multifunctional circulating water treatment agent device | |
| CN112129909A (en) | Power plant water quality on-line instrument evaluation test device and test method | |
| CN116818997A (en) | Device and method for testing performance of scale inhibitor | |
| CN215598814U (en) | Standard solution generating device for online inspection of pH meter | |
| CN203455306U (en) | Online sodium ion monitoring device | |
| CN214122219U (en) | Mobile online silicon meter and phosphorus meter testing device | |
| CN208255312U (en) | A kind of on-Line Monitor Device of hydrogen ion exchange resin consumption | |
| CN212283587U (en) | Steam generator blowdown ionization desalination membrane stack performance's test system | |
| CN113567431A (en) | Industrial circulating water alkalinity online measuring device and measuring method | |
| CN209821181U (en) | Dissolved oxygen sensor test device | |
| CN112067682A (en) | Online dissolved oxygen meter zero calibration system and method | |
| CN215953436U (en) | Measuring device for accurately measuring hydrogen conductivity of water | |
| CN113552178A (en) | Automatic continuous measurement method for hydrogen conductivity in steam-water sampling | |
| CN214473277U (en) | On-site on-line intelligent testing and calibrating system for chemical instrument | |
| CN215261832U (en) | System for on-line chemical instrument complete machine calibration | |
| CN206891524U (en) | A kind of container boiling water level measurement device based on multiple repairing weld | |
| CN213121708U (en) | Online measuring device for electric conductance of hydrogen removed from power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |