A boron table calibration device

Abstract

The utility model provides a boron table calibration device relates to boron table calibration technical field, including frame and setting on the frame mixed solution bucket, add subassembly and cycle subassembly, be provided with thermostatic heating seat on the frame, be provided with mounting groove on thermostatic heating seat, mixed solution bucket is fixed with the frame, and is inserted into the mounting groove of thermostatic heating seat, mixed solution bucket is used for the configuration mixed liquid, the utility model discloses a set up add subassembly, quantitative add deionized water and boric acid in mixed solution bucket, again through the thermostatic heating seat that sets up, with the mixed liquid of different concentration and required temperature boric acid that mixes, through cycle subassembly boron table is connected, carries out the circulation, realizes the cycle calibration operation of boron table according to the mixed liquid of known concentration, simultaneously, the frame that sets up can move the whole device to realize the periodic calibration operation of boron table, can reduce the manual intervention when calibration operation, and complete continuous calibration, thereby improve operation safety and calibration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of boron meter calibration technology, and in particular to a boron meter calibration device. Background Technology

[0002] Energy in nuclear power plants is obtained through self-sustaining chain nuclear fission reactions, and reactor power depends on the neutron flux density level in the reactor core. In pressurized water reactor nuclear power plants, one method to control reactor power operation is to add boric acid as a neutron absorber to the primary coolant, thereby controlling the reactor chain reaction by adjusting the boron concentration in the primary coolant. Therefore, real-time monitoring of the boron concentration in the primary coolant is crucial, and a boron meter is the only instrument in a nuclear power plant capable of real-time monitoring of the boron concentration in the primary coolant. Calibration of the boron meter can be achieved by connecting the boron meter calibration device and the online boron meter system using the connection assembly for online boron meter calibration (notation number CN217086150U), and then calibrating the boron meter using the calibration device.

[0003] In current calibration devices, the system connects the boron concentration detection pipeline to a boron solution tank via a circulating pump, forming a closed loop. Operators must manually prepare boron solutions of different concentrations and inject them into the tank. By adjusting the boron concentration in the tank, the actual operating conditions of the primary coolant are simulated, thereby calibrating the online boron meter. This method relies on manual intervention, which is not only cumbersome and inefficient but also makes it difficult to achieve precise control and rapid switching of boron concentration. Furthermore, the lack of automation and continuous solution preparation capabilities prevents continuous calibration operations at different concentration gradients, limiting the coverage and real-time nature of calibration data, and increasing the risk of personnel exposure and operational uncertainty. Utility Model Content

[0004] In view of this, the present invention proposes a boron meter calibration device. Through an added component, deionized water and boric acid are quantitatively added to a mixed solution tank. A constant-temperature heating base is then used to prepare boric acid mixtures of different concentrations and required temperatures. A circulation component connects to the boron meter for circulation, enabling cyclic calibration of the boron meter based on the known concentration of the mixture. Simultaneously, a chassis allows the entire device to be moved, facilitating periodic calibration of the boron meter. This reduces manual intervention during calibration and enables continuous calibration, thereby improving operational safety and calibration efficiency.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a boron meter calibration device, including a frame and a mixed solution tank, an addition component, and a circulation component mounted on the frame, wherein... A constant temperature heating seat is provided on the vehicle frame, and the constant temperature heating seat is provided with a mounting groove; The mixing solution tank is fixed to the vehicle frame and inserted into the mounting slot of the constant temperature heating base. The mixing solution tank is used to prepare the mixing solution. The addition component has a first input terminal and a second input terminal, both of which are connected to a mixing solution tank to add boric acid and deionized water into the mixing solution tank; The circulation assembly includes a first connecting pipe and a second connecting pipe, one end of which is connected to the mixing solution tank. The first connecting pipe is used to connect to the outlet of the boron meter, and the second connecting pipe is used to connect to the outlet of the boron meter. The circulation assembly circulates the mixed solution by connecting the mixing solution tank and the boron meter.

[0006] Based on the above technical solutions, preferably, the vehicle frame is further provided with a support frame, and the constant temperature heating seat includes an insulated base and a heating plate, wherein... The constant temperature heating base is fixed on the support frame, and the mounting groove is provided on the constant temperature heating base; The heating plate is embedded in the constant temperature heating base and located inside the mounting groove, and is in contact with the bottom of the mixed solution tank.

[0007] Based on the above technical solutions, preferably, the adding component includes a liquid storage tank and a water storage tank. Both the liquid storage tank and the water storage tank are fixed on the vehicle frame and are respectively connected to a mixing solution tank through a first input terminal and a second input terminal. The liquid storage tank is used to store boric acid, and the water storage tank is used to store deionized water.

[0008] More preferably, the added component further includes a first flow meter, which is fixed on the vehicle frame and connected to the liquid storage tank, and connected to the mixed solution tank through a first input terminal.

[0009] In a further preferred embodiment, a liquid storage tank, a first flow meter, and a mixed solution tank are respectively installed from high to low on the horizontal plane.

[0010] More preferably, the adding component further includes a water injection pump, which is mounted on the vehicle frame and has its input end connected to a water storage tank. The output end of the water injection pump is connected to a mixing solution tank via a second input end.

[0011] Based on the above technical solutions, preferably, the circulation assembly further includes a circulation pump and a second flow meter, wherein, The circulation pump is mounted on the chassis, and its input is connected to the mixing solution tank. The second flow meter is installed at the output end of the circulating pump and is connected to the second connecting pipe.

[0012] Based on the above technical solutions, preferably, the system also includes an electrical box and a wastewater tank, both of which are mounted on the vehicle frame.

[0013] More preferably, the vehicle frame is also provided with a layered rack, and the electrical box and wastewater tank are both installed on the layered rack.

[0014] Based on the above technical solutions, preferably, the mixing solution tank is provided with a stirring mechanism that extends into the mixing solution tank to stir the mixture in the mixing solution tank.

[0015] The boron meter calibration device of this invention has the following advantages over the prior art: (1) Deionized water and boric acid are quantitatively added to the mixed solution tank through the set addition component, and then the set constant temperature heating seat is used to mix boric acid mixtures of different concentrations and required temperatures. The boron meter is connected through the circulation component to circulate and realize the cyclic calibration of the boron meter according to the known concentration of the mixture. At the same time, the set frame allows the whole device to be moved to realize the periodic calibration of the boron meter, which can reduce manual intervention during calibration and complete continuous calibration, thereby improving operational safety and calibration efficiency. (2) The heat insulation base is made of heat insulation material. It is used to isolate the heat lost from the heating plate to the outside, and at the same time reduce the temperature change of the mixed liquid inside the mixing solution tank to achieve a constant temperature effect. The heating plate is in the shape of a disc, specifically a cast aluminum heating plate. It heats the bottom of the mixing solution tank through heat conduction, and works with the stirring mechanism to achieve uniform and stable heating, so that the mixed liquid reaches and maintains the preset temperature. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the boron meter calibration device of this utility model; Figure 2 This is another perspective view of the boron meter calibration device of this utility model; Figure 3 This is a perspective view of the mixed solution tank of the boron meter calibration device of this utility model; Figure 4 This is a side view of the mixing solution tank of the boron meter calibration device of this utility model; Figure 5 for Figure 4 Cross-sectional view at point AA. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1-5 As shown, the boron meter calibration device of this utility model includes a frame 1 and a mixed solution tank 2, an addition component 3 and a circulation component 4 disposed on the frame 1.

[0020] The frame 1 is equipped with a constant temperature heating seat 11, which has an installation groove. The frame 1 is composed of a profile frame and pulleys. The profile frame is constructed into a cuboid frame, and the number of pulleys is set to four, which are installed at the bottom of the cuboid frame. At least two of them are configured as omnidirectional wheels.

[0021] The mixing solution tank 2 is fixed to the frame 1 and inserted into the mounting groove of the constant temperature heating base 11. The mixing solution tank 2 is used to prepare the mixed solution. The mixing solution tank 2 is cylindrical in shape and has a closed lid on the top. The lid has an interface for installing sensors such as thermometers and level gauges to provide feedback on various parameters of the mixed solution inside the mixing solution tank 2. In addition, a stirring mechanism 21 is provided on the mixing solution tank 2. The stirring mechanism 21 extends into the mixing solution tank 2 to stir the mixed solution inside the mixing solution tank 2. The stirring mechanism 21 enables rapid mixing of boric acid and deionized water.

[0022] Specifically, the stirring mechanism 21 includes a motor, a rotating shaft, and stirring blades. The motor is fixed on the lid and can be set through a bearing seat. The rotating shaft is connected to the output end of the motor. The rotating shaft is inserted vertically into the mixing solution tank 2 from the center of the shaft and is connected to the output end of the motor through a coupling. The stirring blades are fixed to the end of the rotating shaft. The motor drives the mixed liquid to rotate, stirring the liquid inside the mixing solution tank 2 to mix it quickly and make it more uniform, thereby reducing calibration error.

[0023] The adding component 3 has a first input terminal and a second input terminal, both of which are connected to the mixing solution tank 2 to add boric acid and deionized water into the mixing solution tank 2. The adding component 3 needs to store boric acid and deionized water and is equipped with valves to control the addition of boric acid and deionized water. The first input terminal is used to add boric acid into the mixing solution tank 2, while the second input terminal is used to add deionized water into the mixing solution tank 2. Before calibration, the required concentration of boric acid in the mixed solution is confirmed, and the required volume of the mixed solution for calibration is also confirmed, so that the required amount of boric acid and deionized water can be determined. Thus, the adding component 3 can achieve accurate addition of boric acid and deionized water without human contact.

[0024] In practical applications, the addition methods can be divided into passive addition and active addition. Passive addition includes addition through gravity and other means, while active addition includes addition through pump transmission and other means.

[0025] The circulation component 4 includes a first connecting pipe 41 and a second connecting pipe 42. One end of the first connecting pipe 41 and the second connecting pipe 42 are both connected to the mixing solution tank 2. The first connecting pipe 41 is used to connect to the outlet of the boron meter, and the second connecting pipe 42 is used to connect to the outlet of the boron meter. The circulation component 4 circulates the mixed solution by connecting the mixing solution tank 2 and the boron meter.

[0026] In this embodiment, deionized water and boric acid are quantitatively added to the mixing solution tank 2 via the added component 3. Then, the constant temperature heating seat 11 is used to mix boric acid mixtures of different concentrations and required temperatures. The mixture is connected to the boron meter via the circulation component 4 for circulation. The boron meter is calibrated cyclically based on the known concentration of the mixture. At the same time, the frame 1 allows the entire device to be moved to perform periodic calibration of the boron meter, which can reduce manual intervention during calibration and complete continuous calibration, thereby improving operational safety and calibration efficiency.

[0027] In some embodiments, the frame 1 is further provided with a support frame 12, the constant temperature heating seat 11 includes a heat preservation base 111 and a heating plate 112, the constant temperature heating seat 11 is fixed on the support frame 12, the mounting groove is provided on the constant temperature heating seat 11, the heating plate 112 is embedded in the constant temperature heating seat 11 and located inside the mounting groove, and is in contact with the bottom of the mixed solution tank 2.

[0028] The support frame 12 is placed horizontally in the middle of the frame 1. The heat insulation base 111 can be made of heat insulation material. It is mainly used to isolate the heat lost from the heating plate 112 to the outside, and at the same time reduce the temperature change of the mixed liquid inside the mixing solution tank 2 to achieve a constant temperature effect. The heating plate is disc-shaped and is specifically a cast aluminum heating plate. It heats the bottom of the mixing solution tank 2 through heat conduction. Together with the stirring mechanism 21, it achieves uniform and stable heating so that the mixed liquid reaches and maintains the preset temperature.

[0029] In some embodiments, the adding component 3 includes a liquid storage tank 31 and a water storage tank 32. The liquid storage tank 31 and the water storage tank 32 are both fixed on the frame 1 and are respectively connected to the mixed solution tank 2 through a first input terminal and a second input terminal. The liquid storage tank 31 is used to store boric acid, and the water storage tank 32 is used to store deionized water.

[0030] Considering that the required capacity of boric acid is relatively small, a fixing frame is set on the frame 1 to fix the storage tank 31. A cap is also set on the storage tank 31, and the operator can add boric acid by removing the cap. For the water storage tank 32, a large-capacity tank is selected and it is horizontally fixed on the frame 1 to achieve a stable supply of a large amount of deionized water.

[0031] In addition, the added component 3 also includes a first flow meter 33, which is fixed on the frame 1 and is connected to the liquid storage tank 31 and the mixed solution tank 2 through the first input terminal.

[0032] The flow rate of boric acid supplied to the storage tank 31 is monitored by the first flow meter 33 to accurately add boric acid. The first flow meter 33 can be a mass flow meter. The mass flow meter can ignore the temperature and volume of the liquid and directly measure the mass of the liquid flowing through it, thereby accurately measuring the amount of boric acid added.

[0033] In addition, according to the division from high to low on the horizontal plane, a storage tank 31, a first flow meter 32 and a mixed solution tank 33 are respectively provided, so that the boric acid in the storage tank 31 can be added by flowing downward under the action of gravity, realizing passive addition, without the need to set up pumps or other adding devices or gravity devices.

[0034] In some embodiments, the adding component 3 further includes a water injection pump 34, which is mounted on the frame 1 and has its input end connected to a water storage tank 32. The output end of the water injection pump 34 is connected to a mixing solution tank 2 via a second input end. The water injection pump 34 is connected to the mixing solution tank 2 via a pipeline and is preferably a peristaltic pump with controllable flow rate. Since the water storage tank 32 contains a large amount of water, in order to facilitate the operation of the workers to add water and at the same time to ensure that the center of the frame 1 is not too high, the water storage tank 32 is set at a relatively low horizontal height. The water can be transported by the water injection pump 34.

[0035] In some embodiments, the circulation assembly 4 further includes a circulation pump 43 and a second flow meter 44. The circulation pump 43 is mounted on the frame 1 and its input end is connected to the mixed solution tank 2. The second flow meter 44 is mounted on the output end of the circulation pump 43 and is connected to the second connecting pipe 42.

[0036] The second flow meter 44 can measure the flow rate of the boron meter mixture. The set circulation pump 43 continuously circulates the mixture to achieve circulation calibration. During the circulation process, the boric acid concentration of the mixture can be changed by adding boric acid or deionized water to achieve uninterrupted multi-concentration calibration operation.

[0037] In some embodiments, an electrical box 5 and a wastewater tank 6 are also provided, both of which are mounted on the vehicle frame 1.

[0038] The electrical box 5 is used for data acquisition and integrated control of the equipment. The thermometer, level gauge, and other flow meters inserted into the mixed solution tank 2 will all transmit the acquired data to the electrical box 5.

[0039] In addition, the frame 1 is also equipped with a layered rack 13. The electrical box 5 and the wastewater tank 6 are both installed on the layered rack 13. The layered rack 13 has three layers arranged from bottom to top. The first layer is equipped with the wastewater tank 6, the second layer is equipped with the liquid storage tank 31, and the top layer is equipped with the electrical box 5. A reserved pipe is also installed at the bottom of the mixed solution tank 2, and a manual valve is installed on the reserved pipe. The reserved pipe can be used to sample the liquid inside the mixed solution tank 2, or to connect to the waste liquid tank 6 to discharge the waste liquid or cleaning liquid inside the mixed solution tank 2 into the waste liquid tank 6 for storage.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boron meter calibration device, characterized in that: Includes a frame (1) and a mixing solution tank (2), an addition component (3), and a circulation component (4) mounted on the frame (1), wherein, A constant temperature heating seat (11) is provided on the frame (1), and the constant temperature heating seat (11) is provided with an installation groove; The mixing solution tank (2) is fixed to the frame (1) and inserted into the mounting slot of the constant temperature heating seat (11). The mixing solution tank (2) is used to prepare the mixing solution. The addition component (3) has a first input terminal and a second input terminal, both of which are connected to the mixing solution tank (2) to add boric acid and deionized water into the mixing solution tank (2); The circulation component (4) includes a first connecting pipe (41) and a second connecting pipe (42). One end of the first connecting pipe (41) and the second connecting pipe (42) are both connected to the mixing solution tank (2). The first connecting pipe (41) is used to connect to the outlet of the boron meter, and the second connecting pipe (42) is used to connect to the outlet of the boron meter. The circulation component (4) circulates the mixed solution by connecting the mixing solution tank (2) and the boron meter.

2. The boron meter calibration device as described in claim 1, characterized in that: The frame (1) is also provided with a support frame (12), and the constant temperature heating seat (11) includes an insulated base (111) and a heating plate (112), wherein, The constant temperature heating base (11) is fixed on the support frame (12), and the mounting groove is set on the constant temperature heating base (11); The heating plate (112) is embedded in the constant temperature heating base (11) and located inside the mounting groove, and is attached to the bottom of the mixing solution tank (2).

3. The boron meter calibration device as described in claim 1, characterized in that: The addition component (3) includes a liquid storage tank (31) and a water storage tank (32). The liquid storage tank (31) and the water storage tank (32) are both fixed on the frame (1) and are respectively connected to the mixed solution tank (2) through the first input end and the second input end. The liquid storage tank (31) is used to store boric acid and the water storage tank (32) is used to store deionized water.

4. The boron meter calibration device as described in claim 3, characterized in that: The added component (3) also includes a first flow meter (33), which is fixed on the frame (1) and is connected to the liquid storage tank (31) and connected to the mixed solution tank (2) through the first input end.

5. The boron meter calibration device as described in claim 4, characterized in that: From high to low on the horizontal plane, there are a liquid storage tank (31), a first flow meter (33) and a mixed solution tank (2).

6. The boron meter calibration device as described in claim 3, characterized in that: The addition component (3) also includes a water injection pump (34), which is mounted on the frame (1) and has its input end connected to a water storage tank (32). The output end of the water injection pump (34) is connected to a mixing solution tank (2) via a second input end.

7. The boron meter calibration device as described in claim 1, characterized in that: The circulation assembly (4) further includes a circulation pump (43) and a second flow meter (44), wherein, The circulation pump (43) is mounted on the frame (1) and its input end is connected to the mixing solution tank (2). The second flow meter (44) is installed at the output end of the circulating pump (43) and connected to the second connecting pipe (42).

8. The boron meter calibration device as described in claim 1, characterized in that: It also includes an electrical box (5) and a wastewater tank (6), both of which are mounted on the frame (1).

9. The boron meter calibration device as described in claim 8, characterized in that: The vehicle frame (1) is also provided with a layered frame (13), and the electrical box (5) and the wastewater tank (6) are both located on the layered frame (13).

10. The boron meter calibration device as described in claim 1, characterized in that: The mixing solution tank (2) is provided with a stirring mechanism (21), which extends into the mixing solution tank (2) to stir the mixture in the mixing solution tank (2).

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