System and method for measuring purity of boric acid-enriched product

Abstract

The invention discloses a system and method for measuring the purity of an enriched boric acid product, and the system comprises a sampling system which outputs a to-be-measured product; the configuration system comprises a plurality of independent configuration channels, a weighing device and a solution preparation device are arranged in each configuration channel, the weighing device receives and outputs a group of products with preset mass, and the solution preparation device outputs a group of product solutions; the titration system comprises a plurality of independent titration channels, and each titration channel is internally provided with a titration cavity, a titration pump and a tester; the diagnosis system obtains a plurality of parameters according to the volume of the titration reagent transmitted by the titration pump, and judges the purity and uniformity of the product according to the parameters; and the correction system is connected with the diagnosis system. According to the measuring system and the measuring method provided by the invention, the purity and the uniformity of the product can be efficiently and automatically measured.

Description

Technical Field

[0001] The invention relates to the technical field of purity measurement, and in particular to a purity measurement system and a measurement method for a boric acid enriched product. Background Art

[0002] Boron-10 in enriched boric acid is used as a neutron absorber in nuclear devices. It has the advantages of wide absorption energy spectrum, stable absorption cross section, no strong secondary radiation and simple post-processing. It can control the fission reaction of nuclear fuel, and cooperate with lithium hydroxide to control the pH value of the core and the primary circuit, inhibit the production of core corrosion products, and ensure the safety of the core and the integrity of the pressure boundary. Among them, nuclear devices have strict requirements for the purity of enriched boric acid. Once the impurities in the enriched boric acid exceed the standard and cause its purity to be insufficient, it will have an adverse effect on the reactivity control and pH value control of the core solution.

[0003] When testing the purity of enriched boric acid, it is done by manual dissolution titration, which results in problems such as insufficient manual testing accuracy, low testing efficiency, and consistency of test results. Therefore, there is an urgent need for a measurement system that can achieve efficient, high-precision and automatic measurement of the purity of the enriched boric acid product. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a measurement system and a measurement method for the purity of an enriched boric acid product, which can efficiently and automatically measure the purity and uniformity of the product, improve the accuracy and consistency of the measurement results, and reduce the workload of operators.

[0005] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0006] The present invention provides a system for measuring the purity of a boric acid enriched product, comprising at least:

[0007] Sampling system, outputs the product to be tested;

[0008] A configuration system, comprising a plurality of independent configuration channels, each of which is provided with a weighing device and a solution preparation device, wherein the weighing device receives and outputs a set of products of a preset mass, and the solution preparation device is connected to an output port of the weighing device and outputs a set of product solutions;

[0009] A titration system, comprising a plurality of independent titration channels, wherein each of the titration channels is provided with a titration chamber, a titration pump and a measuring instrument, wherein the titration chamber is connected to the output port of the solution preparation device, the output port of the titration pump is connected to the titration chamber, and the measuring instrument is arranged in the titration chamber;

[0010] a diagnostic system, which obtains a plurality of parameters according to the volume of the titration reagent delivered by the titration pump, the parameters including actual concentrations, concentration deviations and standard deviations between the concentration deviations of a plurality of groups of the product solutions, and determines the purity and uniformity of the product according to the parameters; and

[0011] A calibration system is connected with the diagnostic system.

[0012] In one embodiment of the present invention, the sampling system includes a base and a robotic arm, wherein the robotic arm is disposed on one side of the base, and one end of the robotic arm is movably connected to the base, and the other end of the robotic arm extends in a direction away from the base.

[0013] In one embodiment of the present invention, the sampling system further comprises a sampling slot, and the sampling slot is connected to an end of the robotic arm away from the base.

[0014] In one embodiment of the present invention, the sampling system further comprises a compactor, one end of the compactor is movably connected to the base, and the other end of the compactor extends to the sampling slot.

[0015] In one embodiment of the present invention, the measuring instrument is communicatively connected to the titration pump, and the titration pump is communicatively connected to the diagnostic system.

[0016] In one embodiment of the present invention, the number of the configuration channels is equal to the number of the titration channels, and the output port of the solution preparation device in one of the configuration channels is connected to the titration chamber in one of the titration channels.

[0017] The present invention also provides a method for measuring the purity of a boric acid enriched product, using the above-mentioned measuring system, comprising at least the following steps:

[0018] The sampling system samples the product and outputs it;

[0019] In each configuration channel of the configuration system, the weighing device receives and outputs a set of products of preset mass to the solution preparation device, and the solution preparation device prepares the set of products into a set of product solutions;

[0020] Each group of the product solution is output to the titration chamber in the titration system, and the titration pump adds the titration reagent into the titration chamber, and stops adding the titration reagent when the titration end point is observed according to the detection result of the measuring instrument;

[0021] According to the dosage of the titration reagent, the concentration of the titration reagent and the volume of the solvent in the product solution, the diagnostic system obtains the actual concentration, concentration deviation and standard deviation between the concentration deviations of multiple groups of the product solutions, and determines whether the purity and uniformity of the product are qualified; and

[0022] The above steps of sampling, weighing, solution preparation, titration and judgment are repeated for a standard product of predicted purity. The diagnostic system feeds back the judgment result of the standard product to the calibration system, and the calibration system determines whether the measurement system can be used normally.

[0023] In one embodiment of the present invention, the concentration deviation of a group of the product solutions is obtained according to the following formula:

[0024] Concentration deviation = (target concentration - actual concentration) / target concentration;

[0025] The target concentration is the concentration that the product solution needs to reach when meeting production needs, and the actual concentration is the concentration obtained by the diagnostic system.

[0026] In one embodiment of the present invention, judging whether the purity of the product is qualified comprises at least the following steps:

[0027] When the absolute values ​​of the concentration deviations of the plurality of groups of product solutions are all less than or equal to a preset absolute value, the purity of the product is qualified; otherwise, the purity of the product is unqualified.

[0028] In one embodiment of the present invention, judging whether the uniformity of the product is qualified comprises at least the following steps:

[0029] When the standard deviation between the concentration deviations of the plurality of groups of product solutions is less than or equal to a preset standard deviation, the uniformity of the product is qualified; otherwise, the uniformity of the product is unqualified.

[0030] In summary, the present invention provides a system and method for measuring the purity of a boric acid enriched product, which can efficiently and automatically measure the purity and uniformity of the product, avoid relying on manual labor, and reduce the workload of operators. Moreover, the system and method for measuring the purity of a boric acid enriched product provided by the present invention can improve the accuracy and consistency of the measurement results, thereby being able to accurately detect the purity of the boric acid enriched in a nuclear device, improve the control accuracy of the nuclear device on the purity of the boric acid enriched, and optimize the operation of the nuclear device.

[0031] Of course, any method of implementing the present invention does not necessarily need to achieve all of the advantages mentioned above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0033] Figure 1Schematic diagram of a sampling system and a configuration system in one embodiment of the present invention.

[0034] Figure 2 It is a schematic diagram of a configuration system, a titration system, a diagnosis system and a calibration system in one embodiment of the present invention.

[0035] Figure 3 The present invention is a flowchart of a method for measuring the purity of a boric acid enriched product in one embodiment of the present invention.

[0036] Description of labels:

[0037] 11. Sampling system; 111. Base; 112. Robotic arm; 113. Sampling trough; 114. Compactor; 12. Configuration system; 121. First configuration channel; 1211. Weighing device; 1212. Solution preparation device; 122. Second configuration channel; 123. Third configuration channel; 13. Titration system; 131. First titration channel; 1311. Titration chamber; 1312. Titration pump; 1313. Measuring instrument; 132. Second titration channel; 133. Third titration channel; 14. Diagnostic system; 15. Calibration system. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0040] The technical solution of the present invention is further described in detail below in conjunction with the embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 to Figure 2As shown, the present invention provides a measurement system for the purity of a boric acid enriched product, which at least includes a sampling system 11, a configuration system 12, a titration system 13, a diagnostic system 14 and a correction system 15, wherein the sampling system 11 samples and outputs the product to be measured, the configuration system 12 includes a plurality of configuration channels, each of which is provided with a weighing device 1211 and a solution preparation device 1212, the weighing device 1211 receives and outputs a set of products of preset mass, the solution preparation device 1212 is connected to the output port of the weighing device 1211, the titration system 13 includes a plurality of titration channels, and each of the configuration channels is provided with a weighing device 1211 and a solution preparation device 1212, the weighing device 1211 receives and outputs a set of products of preset mass, the solution preparation device 1212 is connected to the output port of the weighing device 1211, and the titration system 13 includes a plurality of titration channels, and each of the weighing devices 1211 and the solution preparation device 1212 is connected to the output port of the weighing device 1211. A titration chamber 1311, a titration pump 1312 and a measuring instrument 1313 are arranged in the titration channel, the titration chamber 1311 is connected to the output port of the solution preparation device 1212, the output port of the titration pump 1312 is connected to the titration chamber 1311, the measuring instrument 1313 is arranged in the titration chamber 1311, and the diagnostic system 14 obtains multiple parameters according to the volume of the titration reagent transmitted by the titration pump 1312, the parameters include the actual concentration of multiple groups of product solutions, the concentration deviation and the standard deviation between the concentration deviations, and judges the purity and uniformity of the product according to the parameters, and the correction system 15 is connected to the diagnostic system 14. Through the measurement system provided by the present invention, the purity of the product can be measured efficiently and automatically, and the accuracy and consistency of the measurement results can be improved. The measurement system of product purity provided by the present invention can be used to test the purity of various products. In this embodiment, the measurement system is described by taking the measurement system as an example of determining the purity of enriched boric acid.

[0042] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the sampling system 11 samples the product and outputs the product to the configuration system 12. The sampling system 11 includes, for example, a base 111, a mechanical arm 112, a sampling slot 113, and a compactor 114. Specifically, the present invention does not limit the shape of the base 111, which can be selected according to actual conditions. In this embodiment, the base 111 is, for example, circular, and provides support for the mechanical arm 112, the sampling slot 113, and the compactor 114.

[0043] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the mechanical arm 112 is disposed on one side of the base 111, and one end of the mechanical arm 112 is movably connected to the base 111, and the other end extends in a direction away from the base 111. In this embodiment, one end of the mechanical arm 112 is movably connected to the center of the base 111, so that the mechanical arm 112 can perform a circular motion with the center of the base 111 as the center of the circle.

[0044] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the sampling slot 113 is connected to the end of the mechanical arm 112 away from the base 111, and is used to scoop out the product. The present invention does not limit the shape and size of the sampling slot 113, which can be selected according to actual needs. In this embodiment, the mechanical arm 112 performs a circular motion around the center of the base 111, while driving the sampling slot 113 to perform a circular motion together. By providing the sampling slot 113 and the mechanical arm 112, the sampling slot 113 can sample the product located at any position of the base 111 without moving the base 111, thereby improving the flexibility of the operation of the sampling system 11.

[0045] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, one end of the compactor 114 is movably connected to the base 111, and the other end extends to the sampling slot 113. In this embodiment, one end of the compactor 114 is movably connected to the center of the base 111, so that the compactor 114 and the mechanical arm 112 can synchronously perform circular motion with the center of the base 111 as the center of the circle. By providing the compactor 114, the product in the sampling slot 113 can be compacted, so that the sampling slot 113 can accommodate more products, thereby expanding the scope of application of the measurement system. Among them, the compactor 114 is, for example, a compacting plate.

[0046] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the configuration system 12 is connected to the output port of the sampling system 11. The configuration system 12, for example, includes a plurality of configuration channels, and the plurality of configuration channels are independently arranged. In this embodiment, for example, the configuration system 12 includes three configuration channels as an example for explanation, and the three configuration channels include, for example, a first configuration channel 121, a second configuration channel 122, and a third configuration channel 123, etc. The three configuration channels have the same composition, and the configuration channels are described by taking the first configuration channel 121 as an example. In the first configuration channel 121, for example, a weighing device 1211 and a solution preparation device 1212 are arranged, and the weighing device 1211 receives and outputs a first group of products of a first preset mass, and the solution preparation device 1212 is connected to the output port of the weighing device 1211. Specifically, in the first configuration channel 121, the weighing device 1211 receives the first group of products output by the sampling system 11 and measures the weight of the group of products in real time. When the weight of the group of products reaches the first preset mass, the sampling system 11 stops outputting, and the weighing device 1211 outputs the first group of products of the first preset mass to the solution preparation device 1212, and the solution preparation device 1212 receives the first preset volume of solvent, and the first group of products is dissolved in the solvent to obtain the first group of product solutions. Among them, the first group of products, the second group of products and the third group of products are, for example, products from the same batch, the solvent is, for example, deionized water, etc., the first preset volume is, for example, 0.5L-2L, and the first preset mass is, for example, 0.05g-5g. Similarly, in this embodiment, after the second configuration channel 122 receives the second group of products of the second preset mass and the second preset volume of solvent, it outputs the second group of product solutions, and after the third configuration channel 123 receives the third group of products of the third preset mass and the third preset volume of solvent, it outputs the third group of product solutions. Among them, the first preset mass, the second preset mass and the third preset mass can be equal or cannot be unequal, and the first preset volume, the second preset volume and the third preset volume can be equal or cannot be unequal.

[0047] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the titration system 13 is connected to the output port of the solution preparation device 1212, so that the product solution output by the solution preparation device 1212 is transferred to the titration system 13, and during the transfer process, the product solution oscillates and shakes due to the movement, so that the composition of the product solution reaching the titration system 13 is uniform, thereby improving the measurement accuracy of the entire measurement system for the product purity. The titration system 13, for example, includes a plurality of titration channels, and the plurality of titration channels are independently arranged, wherein the number of titration channels is equal to the number of configuration channels, for example. In this embodiment, the titration system 13 includes three titration channels, for example, the three titration channels include a first titration channel 131, a second titration channel 132, and a third titration channel 133, etc. The first titration channel 131 is connected to the output port of the solution preparation device 1212 in the first configuration channel 121, the second titration channel 132 is connected to the output port of the solution preparation device 1212 in the second configuration channel 122, and the third titration channel 133 is connected to the output port of the solution preparation device 1212 in the third configuration channel 123. The three titration channels have the same composition, and the titration channels are described by taking the first titration channel 131 as an example. Specifically, in the first titration channel 131, for example, a titration chamber 1311, a titration pump 1312, and a measuring instrument 1313 are provided. The titration chamber 1311 is connected to the output port of the solution preparation device 1212 , and the product solution output by the solution preparation device 1212 enters the titration chamber 1311 , and is titrated in the titration chamber 1311 .

[0048] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the output port of the titration pump 1312 is connected to the titration chamber 1311, and is used to add a titration reagent into the titration chamber 1311. The titration reagent reacts with the product solution in the titration chamber 1311, and the concentration of the product solution is calibrated by the amount of the titration reagent. The titration reagent is, for example, an alkaline solution such as sodium hydroxide.

[0049] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the measuring instrument 1313 is arranged in the titration chamber 1311, and is used to determine the titration end point at which the titration reagent and the product solution in the titration chamber 1311 react completely. The measuring instrument 1313 is in communication connection with the titration pump 1312. When the measuring instrument 1313 detects the titration end point, the measuring instrument 1313 sends a stop signal to the titration pump 1312, and the titration pump 1312 stops outputting the titration reagent. In this embodiment, the measuring instrument 1313 is, for example, a pH detector. When it is detected that the pH value of the solution in the titration chamber 1311 changes from acidic to neutral, it indicates that the titration reagent in the titration chamber 1311 reacts completely with the product solution, and the measuring instrument 1313 stops the titration pump 1312 from outputting the titration reagent.

[0050] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the diagnostic system 14 is connected to the titration pump 1312 in communication, and parameters such as the concentration of the titration reagent, the preset mass of each group of products, and the preset volume of the solvent in each group of product solutions can be input and set in the diagnostic system 14. Specifically, when the titration pump 1312 stops outputting the titration reagent, the titration pump 1312 transmits the volume of the titration reagent that has been output to the diagnostic system 14, and the diagnostic system 14 obtains the actual concentration of each group of product solutions based on the volume of the titration reagent, the concentration of the titration reagent, and the preset volume of the solvent in each group of product solutions. Among them, the titration pump 1312 can calculate the actual concentrations of multiple groups of product solutions at the same time. In this embodiment, the first configuration channel 121 prepares the first group of product solutions and outputs them to the first titration channel 131. After the first group of product solutions are titrated to the titration end point in the first titration channel 131, the diagnostic system 14 obtains the actual concentration A of the first group of product solutions. Similarly, through the second configuration channel 122, the second titration channel 132 and the diagnostic system 14, the actual concentration B of the second group of product solutions can be obtained, and through the third configuration channel 123, the third titration channel 133 and the diagnostic system 14, the actual concentration C of the third group of product solutions can be obtained.

[0051] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, when the product can meet the production needs, the actual purity of the product needs to reach the target purity, and the diagnostic system 14 can obtain the target concentration of each group of product solutions based on the target purity, the preset mass of each group of products, and the preset volume of the solvent in each group of product solutions. Specifically, when the actual purity of the product needs to reach the target purity, in the first configuration channel 121 and the first titration channel 131, the actual concentration A of the first group of product solutions needs to reach the target concentration D, in the second configuration channel 122 and the second titration channel 132, the actual concentration B of the second group of product solutions needs to reach the target concentration E, and in the third configuration channel 123 and the third titration channel 133, the actual concentration C of the third group of product solutions needs to reach the target concentration F.

[0052] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, after obtaining the actual concentration and target concentration of the three groups of product solutions, the diagnostic system 14 obtains the concentration deviation of each group of product solutions. Specifically, the concentration deviation of the first group of product solutions, the second group of product solutions and the third group of product solutions is obtained according to the following formula.

[0053] A*=(DA) / D;

[0054] B*=(EB) / E;

[0055] C*=(FC) / F;

[0056] Among them, A* is the concentration deviation of the first group of product solutions, D is the target concentration of the first group of product solutions, A is the actual concentration of the first group of product solutions, B* is the concentration deviation of the second group of product solutions, E is the target concentration of the second group of product solutions, B is the actual concentration of the second group of product solutions, C* is the concentration deviation of the third group of product solutions, F is the target concentration of the third group of product solutions, and C is the actual concentration of the third group of product solutions.

[0057] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, after obtaining the concentration deviations of multiple groups of product concentrations, the diagnostic system 14 obtains the standard deviations between the multiple concentration deviations, and then the diagnostic system 14 judges the concentration and uniformity of the product based on the concentration deviations and the standard deviations. Specifically, when the absolute values ​​A*, B* and C* of the multiple concentration deviations are less than or equal to the preset absolute values, and the standard deviations are less than or equal to the preset standard deviations, the diagnostic system 14 judges that the purity of the batch of products meets the target purity, and the consistency of the measurement results of the multiple groups of products from the same batch is good, thereby indicating that the purity and uniformity of the batch of products are qualified. When at least one of the absolute values ​​of the multiple concentration deviations A*, B* and C* is greater than the preset absolute value, and the standard deviation is less than or equal to the preset standard deviation, the diagnostic system 14 judges that the uniformity of the batch of products is qualified, but the purity of the product does not meet the target purity, and its purity is unqualified. When the standard deviation is greater than the preset standard deviation, the diagnostic system 14 judges that the consistency of the measurement results of the multiple groups of products from the same batch is poor, thereby indicating that the batch of products is uneven. The preset absolute value is, for example, 0.005-0.05, and the preset standard deviation is, for example, 0.0001-0.0007. By setting multiple configuration channels, multiple titration channels and the diagnostic system 14, the uniformity of products from the same batch can be measured and judged to accurately evaluate whether the products are suitable for production needs.

[0058] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the calibration system 15 is connected to the diagnostic system 14. Specifically, after the purity measurement of multiple groups of products is completed, the standard products of the predicted purity are repeatedly sampled, weighed, solution prepared, titrated and calculated through the sampling system 11, the configuration system 12, the titration system 13 and the diagnostic system 14, and the concentration deviation A*, B*, C* and the standard deviation of multiple groups of standard products from the same batch are obtained. Then the diagnostic system 14 judges the purity and uniformity of the standard products according to the concentration deviation and the standard deviation, and transmits the judgment result to the calibration system 15. Among them, when calculating the concentration deviation of multiple groups of standard products, the target purity is equal to the predicted purity. In this embodiment, if the diagnostic system 14 judges that the purity of the standard product is qualified and uniform, the calibration system 15 will feedback that the entire measurement system can be used normally for the measurement of product purity. On the contrary, if the diagnostic system 14 judges that the purity of the standard product is unqualified or uneven, the calibration system 15 will feedback that the entire measurement system cannot be used to measure the purity of the product, and each system in the measurement system needs to be maintained. By setting up the calibration system 15, it is possible to monitor whether the measurement system can be used normally, so that the measurement system can be maintained in time to improve the accuracy and consistency of the measurement results.

[0059] See also Figures 1 to 3 As shown, based on the above-mentioned measurement system, the present invention also provides a method for measuring the purity of an enriched boric acid product, which at least includes steps S11-S15.

[0060] Step S11: The sampling system samples the product and outputs it.

[0061] Step S12: In each configuration channel of the configuration system, the weighing device receives and outputs a group of products of preset mass to the solution preparation device, and the solution preparation device prepares the group of products into a group of product solutions.

[0062] Step S13: each group of product solutions is output to the titration chamber in the titration system, and the titration pump adds the titration reagent into the titration chamber, and stops adding the titration reagent when the titration endpoint is observed according to the detection result of the measuring instrument.

[0063] Step S14: Based on the dosage of the titration reagent, the concentration of the titration reagent and the volume of the solvent in the product solution, the diagnostic system obtains the concentration, concentration deviation and standard deviation between the concentration deviations of multiple groups of the product solutions, and determines whether the purity and uniformity of the product are qualified.

[0064] Step S15, repeat the above steps of sampling, weighing, solution preparation, titration and judgment for the standard product of predicted purity, the diagnostic system feeds back the judgment result of the standard product to the calibration system, and the calibration system judges whether the measurement system can be used normally.

[0065] See also Figures 1 to 3 As shown, in one embodiment of the present invention, in step S11, the sampling system 11 samples the product and outputs the product to the configuration system 12. The sampling process of the sampling system 11 is not elaborated here.

[0066] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after the sampling system 11 takes samples, in step S12, the product is output to the weighing device 1211 in the first configuration channel 121, the weighing device 1211 receives and outputs the first group of products of the first preset mass to the solution preparation device 1212, and the solution preparation device 1212 receives the first preset volume of solvent, the first group of products is dissolved in the solvent, and the first group of product solutions is obtained. Then, the sampling system 11 outputs the product to the weighing device 1211 in the second configuration channel 122, the weighing device 1211 receives and outputs the second group of products of the second preset mass to the solution preparation device 1212, and the solution preparation device 1212 receives the second preset volume of solvent, the second group of products is dissolved in the solvent, and the second group of product solutions is obtained. Similarly, the third group of product solutions is obtained in the third configuration channel 123.

[0067] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after obtaining three groups of product solutions, in step S13, the first group of product solutions is output to the titration chamber 1311 in the first titration channel 131, and the titration pump 1312 adds the titration reagent to the titration chamber 1311, and stops adding the titration reagent when the titration endpoint is observed according to the detection result of the measuring instrument 1313, and then the titration pump 1312 transmits the volume of the transmitted titration reagent to the diagnostic system 14. Similarly, in the second titration channel 132, the second group of product solutions is titrated, and in the third titration channel 133, the third group of product solutions is titrated.

[0068] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after the titration is completed, in step S14, the diagnostic system 14 receives the volume of the titration reagent used in the titration of the three groups of product solutions, the concentration of the titration reagent and the volume of the solvent when the three groups of product solutions are prepared, and obtains the actual concentrations of the three groups of product solutions, i.e., the actual concentration A of the first group of product solutions, the actual concentration B of the second group of product solutions and the actual purity C of the third group of product solutions.

[0069] See also Figures 1 to 3 As shown, in one embodiment of the present invention, in step S14, the diagnostic system 14 obtains the target concentrations of the three groups of product solutions, i.e., the target concentration D of the first group of product solutions, the target concentration E of the second group of product solutions and the target concentration F of the third group of product solutions, based on the target purity of the products, the preset masses of the three groups of products and the preset volumes of the solvents in the three groups of product solutions.

[0070] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after obtaining the actual concentration and the target concentration, in step S14, the diagnostic system 14 obtains the concentration deviations of the three groups of product solutions, namely, the concentration deviation A* of the first group of product solutions, the concentration deviation B* of the second group of product solutions, and the concentration deviation C* of the third group of product solutions.

[0071] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after obtaining the concentration deviations of the three groups of product concentrations, the diagnostic system 14 obtains the standard deviations between the multiple concentration deviations, and then the diagnostic system 14 determines the concentration and uniformity of the product based on the concentration deviations and the standard deviations. For details, please refer to the introduction of the diagnostic system 14 above, which will not be elaborated here.

[0072] See also Figures 1 to 3 As shown, in one embodiment of the present invention, after the measurement of multiple groups of products is completed, in step S15, the standard product with a known purity is repeatedly sampled, weighed, solution prepared, titrated and diagnosed through the sampling system 11, the configuration system 12, the titration system 13 and the diagnosis system 14, and then the diagnosis system 14 transmits the diagnosis result to the calibration system 15, and the calibration system 15 determines whether the measurement system can be normally used to measure the concentration of the product according to the diagnosis result. For details, please refer to the introduction of the calibration system 15 above, which will not be elaborated here.

[0073] See also Figures 1 to 3 As shown, the present invention provides an embodiment, through step S15, the standard product with a known purity is sampled, weighed, solution prepared, titrated and diagnosed to obtain the actual concentration and target concentration of multiple groups of standard product solutions, as shown in Table 1. For example, the actual concentration and target concentration of four groups of standard product solutions are tested.

[0074] See also Figures 1 to 3 As shown, the present invention also provides a comparative example, in which the standard product in the embodiment is weighed once, and after adding a solvent to prepare a mother solution, multiple groups of control product solutions are prepared by dilution method, and then the actual concentrations and target concentrations of the multiple groups of control product solutions are calculated by steps S13-S14, as shown in Table 1. For example, the actual concentrations and target concentrations of four groups of control product solutions are tested.

[0075]

[0076] Please refer to Table 1. Comparing the differences between the actual concentration and the target concentration in the embodiment and the comparative example, the actual concentration in the embodiment is closer to the target concentration, which indicates that: compared with the comparative example in which the mother solution is prepared once and then the dilution method is used to prepare multiple groups of product solutions, in the measurement method provided in this embodiment, the accuracy of the measurement result can be improved by weighing the products one by one and then preparing multiple groups of product solutions respectively.

[0077] In summary, the present invention provides a measurement system and a measurement method for the purity of a boric acid enriched product. Through a sampling system, a configuration system, a titration system, a diagnostic system, and a correction system, the uniformity of the purity of the product can be measured efficiently and automatically, avoiding reliance on manual labor and reducing the workload of operators. Moreover, the measurement system and measurement method provided by the present invention can improve the accuracy and consistency of the test results, thereby facilitating the monitoring of the purity of the boric acid enriched product in the nuclear device to optimize the operation of the nuclear device.

[0078] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A system for measuring the purity of a boric acid enriched product, characterized in that: At least: Sampling system, outputs the product to be tested; A configuration system, comprising a plurality of independent configuration channels, each of which is provided with a weighing device and a solution preparation device, wherein the weighing device receives and outputs a set of products of a preset mass, and the solution preparation device is connected to an output port of the weighing device and outputs a set of product solutions; A titration system, comprising a plurality of independent titration channels, wherein each of the titration channels is provided with a titration chamber, a titration pump and a measuring instrument, wherein the titration chamber is connected to the output port of the solution preparation device, the output port of the titration pump is connected to the titration chamber, and the measuring instrument is arranged in the titration chamber; a diagnostic system, which obtains a plurality of parameters according to the volume of the titration reagent delivered by the titration pump, the parameters including actual concentrations, concentration deviations and standard deviations between the concentration deviations of a plurality of groups of the product solutions, and determines the purity and uniformity of the product according to the parameters; and A calibration system is connected with the diagnostic system.

2. The measuring system according to claim 1, characterized in that The sampling system comprises a base and a mechanical arm. The mechanical arm is arranged on one side of the base, one end of the mechanical arm is movably connected to the base, and the other end of the mechanical arm extends in a direction away from the base.

3. The measuring system according to claim 2, characterized in that The sampling system further comprises a sampling slot connected to an end of the mechanical arm away from the base.

4. The measuring system according to claim 3, characterized in that The sampling system further comprises a compactor, one end of which is movably connected to the base, and the other end of which extends to the sampling slot.

5. The measuring system according to claim 1, characterized in that The measuring instrument is in communication connection with the titration pump, and the titration pump is in communication connection with the diagnostic system.

6. The measuring system according to claim 1, characterized in that The number of the configuration channels is equal to the number of the titration channels, and the output port of the solution preparation device in one of the configuration channels is connected to the titration chamber in one of the titration channels.

7. A method for measuring the purity of a boric acid enriched product, characterized in that: Using the measurement system according to any one of claims 1 to 6, at least The following steps are involved: The sampling system samples the product to be tested and outputs it; In each configuration channel of the configuration system, the weighing device receives and outputs a set of products of preset mass to the solution preparation device, and the solution preparation device prepares the set of products into a set of product solutions; Each group of the product solution is output to the titration chamber in the titration system, and the titration pump adds the titration reagent into the titration chamber, and stops adding the titration reagent when the titration end point is observed according to the detection result of the measuring instrument; According to the dosage of the titration reagent, the concentration of the titration reagent and the volume of the solvent in the product solution, the diagnostic system obtains the actual concentration, concentration deviation and standard deviation between the concentration deviations of multiple groups of the product solutions, and determines whether the purity and uniformity of the product are qualified; and The above steps of sampling, weighing, solution preparation, titration and judgment are repeated for a standard product of predicted purity. The diagnostic system feeds back the judgment result of the standard product to the calibration system, and the calibration system determines whether the measurement system can be used normally.

8. The measuring method according to claim 7, characterized in that: The concentration deviation of a set of the product solutions is obtained according to the following formula: Concentration deviation = (target concentration - actual concentration) / target concentration; The target concentration is the concentration that the product solution needs to reach when meeting production needs, and the actual concentration is the concentration obtained by the diagnostic system.

9. The measuring method according to claim 7, characterized in that: Determining whether the purity of the product is qualified includes at least the following steps: When the absolute values ​​of the concentration deviations of the plurality of groups of product solutions are all less than or equal to a preset absolute value, the purity of the product is qualified; otherwise, the purity of the product is unqualified.

10. The measuring method according to claim 7, characterized in that: Judging whether the uniformity of the product is qualified includes at least the following steps: When the standard deviation between the concentration deviations of the plurality of groups of product solutions is less than or equal to a preset standard deviation, the uniformity of the product is qualified; otherwise, the uniformity of the product is unqualified.

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