CN220137947U - Automatic calibration device for boric acid meter of nuclear power plant - Google Patents

Abstract

The utility model discloses an automatic calibration device for a nuclear power plant boric acid meter, which comprises a liquid storage tank, an automatic liquid distribution mechanism, a titration device and an automatic cleaning mechanism, wherein the liquid storage tank comprises a boric acid solution storage tank and a diluent storage tank, the automatic liquid distribution mechanism is communicated with the boric acid solution storage tank and the diluent storage tank, the titration device is connected with the automatic liquid distribution mechanism, and the automatic cleaning mechanism is connected with the titration device. The automatic calibration device for the nuclear power plant boric acid meter has the advantages of less manual participation and high measurement accuracy.

Description

Automatic calibration device for boric acid meter in nuclear power plant

Technical field

The utility model relates to the technical field of boric acid online calibration, and in particular to an automatic calibration device for a boric acid meter in a nuclear power plant.

Background technique

In nuclear power plants, the boron meter is an important instrument for measuring the boron concentration in the reactor to ensure the safe operation of the reactor. The accuracy and precision of the boron meter directly affect the operational safety of the reactor. Therefore, it is very important to calibrate the accuracy and precision of the boric acid meter regularly. The existing manual calibration method of boron meters has problems such as cumbersome operation and large measurement errors. Therefore, there is an urgent need for an automatic boron meter calibration device that can automatically prepare liquid, measure and have a flushing function.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, embodiments of the present utility model propose an automatic calibration device for a boric acid meter in a nuclear power plant. The automatic calibration device for a boric acid meter in a nuclear power plant has the advantages of less manual participation and high measurement accuracy.

According to an automatic calibration device for a boric acid meter in a nuclear power plant according to an embodiment of the present invention, the automatic calibration device for a boric acid meter in a nuclear power plant includes a liquid storage tank, an automatic liquid dispensing mechanism, a titration device and an automatic cleaning mechanism. The liquid storage tank includes a boric acid solution storage tank and Diluent storage tank, the automatic liquid dispensing mechanism is connected with the boric acid solution storage tank and the diluent storage tank, the titration device is connected with the automatic liquid dispensing mechanism, the automatic cleaning mechanism is connected with the titration The device is connected.

The automatic calibration device for boric acid meters in nuclear power plants according to embodiments of the present invention has the advantages of less manual participation and high measurement accuracy. This application realizes the automatic dispensing, measurement and cleaning of boric acid solution, reducing manual operations and improving measurement accuracy.

In some embodiments, the automatic liquid dispensing mechanism includes a calibration water tank, a controller, an electronic scale, and a stirrer. The electronic scale detects changes in liquid quality and sends data to the controller, and the controller communicates with the stirrer. The agitator is electrically connected, and the agitator is located in the calibration water tank.

In some embodiments, the top of the calibration water tank is connected to the boric acid solution storage tank and the diluent storage tank through valves, and the bottom of the calibration water tank is connected to the automatic cleaning mechanism through valves.

In some embodiments, the titration device includes a titration container, a burette, a sensor and a data processing module. The sensor is located in the titration container to detect the concentration of the boric acid solution. The burette is located above the titration container. The sensor sends concentration data to the data processing module.

In some embodiments, a peristaltic pump is provided between the titration device and the automatic liquid dispensing mechanism, and the peristaltic pump transports the boric acid solution to the titration device.

In some embodiments, the titration container communicates with the mannitol container through a valve.

In some embodiments, the automatic cleaning mechanism includes a cleaning liquid storage tank, a nozzle and a waste liquid collection tank. The nozzle is connected to the cleaning liquid storage tank through a delivery pump, and the nozzle is located above the titration container. , the waste liquid collection tank is connected with the titration container to collect the waste liquid generated by cleaning.

In some embodiments, the titration device further includes a display, and the display is electrically connected to the data processing module to display the boric acid concentration.

Description of drawings

Figure 1 is a front view of an automatic calibration device for a boric acid meter in a nuclear power plant according to an embodiment of the present invention.

Reference symbols: 1. Calibration water tank; 2. Boric acid solution storage tank; 3. Diluent storage tank; 4. Stirrer; 5. Titration device; 6. Waste liquid collection tank.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to explain the present invention, but should not be understood as limiting the present invention.

According to the automatic calibration device for a boric acid meter in a nuclear power plant according to an embodiment of the present invention, the automatic calibration device for a boric acid meter in a nuclear power plant includes a liquid storage tank, an automatic liquid dispensing mechanism, a titration device and an automatic cleaning mechanism. The liquid storage tank includes a boric acid solution storage tank and a diluent. The storage tank, the automatic liquid dispensing mechanism is connected with the boric acid solution storage tank and the diluent storage tank, the titration device is connected with the automatic liquid dispensing mechanism, and the automatic cleaning mechanism is connected with the titration device. Deionized water can be stored in the diluent storage tank of the liquid storage tank. The boric acid solution storage tank and the diluent storage tank are respectively connected to the liquid dispensing container of the automatic liquid dispensing mechanism through pipelines to control the entry volume and volume of the boric acid solution and diluent. The ratio can change the concentration of the boric acid solution. After the automatic liquid dispensing mechanism completes the liquid dispensing, it will send the prepared boric acid solution to the titration device for titration and measure the configured solution concentration. The automatic cleaning mechanism cleans the titration device to avoid measurement errors between boric acid solutions of different concentrations. It can realize real-time detection of the concentration of boric acid solution in nuclear power plants and improve the detection efficiency.

The automatic calibration device for boric acid meters in nuclear power plants according to embodiments of the present invention has the advantages of less manual participation and high measurement accuracy. This application realizes the automatic dispensing, measurement and cleaning of boric acid solution, reducing manual operations and improving measurement accuracy.

In some embodiments, the automatic liquid dispensing mechanism includes a calibration water tank, a controller, an electronic scale and a stirrer. The electronic scale detects changes in liquid quality and sends data to the controller. The controller is electrically connected to the stirrer, and the stirrer is located in the calibration water tank. .

Specifically, the solution is configured in the calibration water tank of the automatic liquid dispensing mechanism. When preparing the boric acid solution, the boric acid solution in the boric acid solution storage tank can be first directed to fill the calibration water tank. The calibration water tank discharges the target volume of boric acid solution, and the electronic scale detects that the liquid quality change reaches the preset value. value, guide into the target volume of diluent, the controller starts the stirrer, and the stirrer stirs the solution in the calibration water tank evenly to obtain the boric acid solution with the target concentration.

In some embodiments, the top of the calibration water tank is connected to the boric acid solution storage tank and the diluent storage tank through valves, and the bottom of the calibration water tank is connected to the automatic cleaning mechanism through valves.

Specifically, the valve at the bottom of the calibration water tank is convenient for controlling the volume of boric acid solution discharged from the calibration water tank, and the valve at the top of the calibration water tank is convenient for controlling the incoming amount of boric acid solution and diluent. In practical applications, the solution is configured in the calibration water tank of the automatic liquid dispensing mechanism. When preparing the boric acid solution, you can first open the valve connected to the boric acid solution storage tank. The boric acid solution fills the calibration water tank, close the valve, and the calibration water tank discharges the target volume of boric acid solution. Open Connect the valve of the diluent storage tank and enter the target volume of diluent. The electronic scale detects the change in liquid quality and reaches the preset value. Close the valve of the diluent storage tank. The controller starts the agitator. The agitator stirs the solution in the calibration water tank evenly. Obtain the boric acid solution with the target concentration.

In some embodiments, the titration device includes a titration container, a burette, a sensor and a data processing module. The sensor is located in the titration container to detect the concentration of the boric acid solution. The burette is located above the titration container. The sensor sends concentration data to the data processing module.

Specifically, the titration container can be a beaker, and the calibration water tank is connected to the beaker through a pipeline. A pump and a valve can be installed on the pipeline to send the boric acid solution into the beaker, add mannitol hydrogen ions into the beaker, and the burette performs acid-base testing. Titrate and record the amount of titrant solution. The sensor can detect the concentration of boric acid solution in the beaker. The data processing module stores the concentration data.

In some embodiments, a peristaltic pump is provided between the titration device and the automatic liquid dispensing mechanism, and the peristaltic pump delivers the boric acid solution to the titration device.

In some embodiments, the titration vessel communicates with the mannitol vessel via a valve.

Specifically, the titration container and the mannitol container are connected through a pipeline, and a pump and a valve are provided on the pipeline. The purpose of adding mannitol is to combine the boric acid with the hydroxyl group in the mannitol and ionize to produce hydrogen ions to prepare for the next step of acid-base titration. .

In some embodiments, the automatic cleaning mechanism includes a cleaning liquid storage tank, a nozzle and a waste liquid collection tank. The nozzle is connected to the cleaning liquid storage tank through a delivery pump. The nozzle is located above the titration container. The waste liquid collection tank is connected to the titration container. To collect the waste liquid generated by cleaning.

Specifically, the cleaning fluid storage tank flushes the beaker, the flushing water tank can be different, the flushed waste liquid flows into the waste liquid collection tank, and the nozzle is located on the beaker to facilitate spraying the cleaning fluid into the beaker.

In some embodiments, the titration device further includes a display, and the display is electrically connected to the data processing module to display the boric acid concentration.

Specifically, the display is used to achieve boric acid concentration readings to facilitate workers to read the data.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The directions or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the device referred to. Or elements must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limitations on the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

In this utility model, unless otherwise expressly stipulated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection, electrical connection or communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction between two elements , unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stipulated and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in direct contact through an intermediate medium. indirect contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean specific features, structures, materials described in conjunction with the embodiment or examples. Or features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present invention. Changes to the above-mentioned embodiments may be made by those of ordinary skill in the art. Modifications, replacements and variations are all within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a nuclear power plant's boric acid table automatic calibration device which characterized in that includes:

a liquid storage tank comprising a boric acid solution storage tank and a diluent storage tank;

the automatic liquid preparation mechanism is communicated with the boric acid solution storage tank and the diluent storage tank;

the titration device is connected with the automatic liquid preparation mechanism;

the automatic cleaning mechanism is connected with the titration device.

2. The automatic calibration device for a boric acid meter of a nuclear power plant according to claim 1, wherein the automatic liquid distribution mechanism comprises a calibration water tank, a controller, an electronic scale and a stirrer, wherein the electronic scale detects liquid quality changes and sends data to the controller, the controller is electrically connected with the stirrer, and the stirrer is positioned in the calibration water tank.

3. The automatic calibration device for the boric acid meter of the nuclear power plant according to claim 2, wherein the top of the calibration water tank is respectively communicated with the boric acid solution storage tank and the diluent storage tank through a valve, and the bottom of the calibration water tank is communicated with the automatic cleaning mechanism through a valve.

4. The automatic calibration device of a nuclear power plant boric acid meter according to claim 1, wherein the titration device comprises a titration vessel, a burette, a sensor and a data processing module, the sensor is located in the titration vessel to detect the concentration of boric acid solution, the burette is located above the titration vessel, and the sensor sends concentration data to the data processing module.

5. The automatic calibration device for the boric acid meter of the nuclear power plant according to claim 4, wherein a peristaltic pump is arranged between the titration device and the automatic liquid distribution mechanism, and the peristaltic pump conveys boric acid solution to the titration device.

6. The automatic calibration device for a nuclear power plant boric acid meter according to claim 4, wherein the titration vessel is communicated with the mannitol vessel through a valve.

7. The automatic calibration device for the boric acid meter of the nuclear power plant according to claim 4, wherein the automatic cleaning mechanism comprises a cleaning liquid storage tank, a spray head and a waste liquid collection tank, the spray head is communicated with the cleaning liquid storage tank through a delivery pump, the spray head is positioned above the titration container, and the waste liquid collection tank is connected with the titration container to collect waste liquid generated by cleaning.

8. The automatic calibration device of a nuclear power plant boric acid meter of claim 4 further comprising a display electrically connected to the data processing module to display boric acid concentration.