Methods, apparatus and systems for evaluating the response time of temperature sensors

Abstract

This application relates to a method, apparatus, system, storage medium, and computer program product for evaluating the response time of a temperature sensor. The method includes: selecting an actual operating condition to be evaluated; after water in the water supply circuit enters a steam generator, controlling a heating element to heat the water in the steam generator to generate steam; if the generated steam meets preset actual operating condition conditions corresponding to the actual operating condition, controlling a first electromagnetic switch and a second electromagnetic switch to operate in conjunction according to their respective target opening degrees, so that the steam is output to the temperature sensor; acquiring the step response curve generated by the temperature sensor, which is connected to a response time-connected instrument, when subjected to a transient impact from the steam; and evaluating the response time of the temperature sensor under the actual operating condition to be evaluated based on the step response curve. This method can improve the accuracy of temperature sensor response time evaluation.

Description

Technical Field

[0001] This application relates to the field of experimental equipment technology for nuclear reactors, and in particular to a method, apparatus, storage medium, and computer program product for evaluating the response time of a temperature sensor. Background Technology

[0002] Temperature sensors used in nuclear power plants need to achieve rapid and effective temperature response to ensure timely reactor shutdown protection in the event of large temperature transients. Therefore, accurate measurement of the temperature sensor response time is crucial.

[0003] Currently, the response time of temperature sensors in traditional technologies is usually measured offline using an immersion method under laboratory conditions with a water medium, which makes it difficult to accurately reflect the response time under actual operating conditions. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, apparatus, storage medium, and computer program product for evaluating the response time of a temperature sensor, which can improve the evaluation accuracy of the response time of the temperature sensor, in response to the above-mentioned technical problems.

[0005] In a first aspect, this application provides a method for evaluating the response time of a temperature sensor. The temperature sensor is deployed in a response time evaluation system, which includes a water supply circuit, a steam generator, a first steam pipe, a first electromagnetic switch, a second steam pipe, and a second electromagnetic switch. A heating element is fixed in the cavity of the steam generator, and a temperature sensor is built into the sleeve of the second steam pipe. The temperature sensor is connected to a response time measuring instrument. One end of the steam generator is connected to the water supply circuit, and the other end of the steam generator is connected to one end of the first electromagnetic switch via the first steam pipe. The other end of the first electromagnetic switch is connected to the second electromagnetic switch via the second steam pipe.

[0006] The method includes:

[0007] Select the actual operating conditions to be evaluated;

[0008] After the water in the water supply circuit enters the steam generator, the heating tube is controlled to heat the water in the steam generator to generate steam.

[0009] If the generated steam medium meets the preset actual working conditions corresponding to the actual working conditions, then control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor.

[0010] Obtain the step response curve generated by the temperature sensor when subjected to transient impact from the steam medium, as fed back by the instrument connected to the response time.

[0011] Based on the step response curve, the response time of the temperature sensor under the actual operating conditions to be evaluated is evaluated.

[0012] In one embodiment, the response time evaluation system further includes a flow meter; before controlling the first electromagnetic switch and the second electromagnetic switch to operate in conjunction with the target opening degree, the system further includes: controlling the first electromagnetic switch to maintain a first preset opening degree and controlling the second electromagnetic switch to maintain a second preset opening degree, and acquiring the flow parameters measured by the flow meter; comparing the flow parameters with a preset flow threshold to obtain a comparison result; and adjusting the first preset opening degree of the first electromagnetic switch and the second preset opening degree of the second electromagnetic switch according to the comparison result.

[0013] In one embodiment, adjusting the first preset opening degree of the first electromagnetic switch and the second preset opening degree of the second electromagnetic switch according to the comparison result includes: if the comparison result indicates that the flow parameter is less than the flow threshold, then controlling the first preset opening degree of the first electromagnetic switch and / or the second preset opening degree of the second electromagnetic switch to increase according to a preset opening degree growth method until the flow parameter equals the flow threshold, and setting the updated first preset opening degree as the target opening degree of the first electromagnetic switch and the updated second preset opening degree as the target opening degree of the second electromagnetic switch; if the comparison result indicates that the flow parameter is greater than the flow threshold, then controlling the first preset opening degree of the first electromagnetic switch and / or the second preset opening degree of the second electromagnetic switch to decrease according to a preset opening degree decrease method until the flow parameter equals the flow threshold, and setting the updated first preset opening degree as the target opening degree of the first electromagnetic switch and the updated second preset opening degree as the target opening degree of the second electromagnetic switch.

[0014] In one embodiment, controlling the first electromagnetic switch and the second electromagnetic switch to operate in conjunction with their respective target opening degrees to output the steam medium to the temperature sensor includes: controlling the first electromagnetic switch to open at a corresponding target opening degree and the second electromagnetic switch to open at a corresponding target opening degree, so that the steam medium is output to the temperature sensor at a steam flow rate corresponding to the actual operating condition to be evaluated.

[0015] In one embodiment, the preset actual operating conditions include preset temperature conditions and preset pressure conditions. The method further includes: determining whether the temperature of the generated steam medium meets the preset temperature conditions and whether the pressure of the steam medium meets the preset pressure conditions; if both are met, then it is determined that the generated steam medium meets the preset actual operating conditions.

[0016] In one embodiment, the step of controlling the heating tube to heat the water in the steam generator after the water in the water supply circuit flows into the steam generator to generate steam includes: when the water level of the water flowing into the steam generator reaches a preset water level, controlling the heating tube to heat the water in the steam generator to generate steam, wherein the preset water level is determined by the flow rate under the actual operating conditions.

[0017] Secondly, this application also provides a device for evaluating the response time of a temperature sensor. The device includes:

[0018] The selection module is used to select the actual operating conditions to be evaluated;

[0019] The first control module is used to control the heating tube to heat the water in the steam generator after the water in the water supply circuit enters the steam generator to generate steam medium.

[0020] The second control module is used to control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees if the generated steam medium meets the preset actual working conditions corresponding to the actual working conditions, so that the steam medium is output to the temperature sensor.

[0021] The acquisition module is used to acquire the step response curve generated by the temperature sensor fed back by the response time connection instrument when subjected to the transient impact of the steam medium;

[0022] The evaluation module is used to evaluate the response time of the temperature sensor under the actual operating conditions to be evaluated, based on the step response curve.

[0023] Thirdly, this application also provides a response time evaluation system for a temperature sensor, comprising: a controller, a water supply circuit, a steam generator, a first steam pipe, a first electromagnetic switch, a second steam pipe, and a second electromagnetic switch. A heating tube is fixed in the cavity of the steam generator, and a temperature sensor is built into the sleeve of the second steam pipe. The temperature sensor is connected to a response time measuring instrument. One end of the steam generator is connected to the water supply circuit, and the other end of the steam generator is connected to one end of the first electromagnetic switch through the first steam pipe. The other end of the first electromagnetic switch is connected to the second electromagnetic switch through the second steam pipe. When the controller executes a computer program, it implements the steps of the above-described response time evaluation method for the temperature sensor.

[0024] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the above-described method for evaluating the response time of a temperature sensor.

[0025] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the above-described method for evaluating the response time of a temperature sensor.

[0026] The above-mentioned temperature sensor response time evaluation method, device, temperature sensor response time evaluation, storage medium, and computer program product select the actual operating condition to be evaluated; after water in the water supply circuit enters the steam generator, the heating tube is controlled to heat the water in the steam generator to generate steam medium; if the generated steam medium meets the preset actual operating condition conditions corresponding to the actual operating condition, the first electromagnetic switch and the second electromagnetic switch are controlled to be linked according to their respective target opening degrees, so that the steam medium is output to the temperature sensor; the step response curve generated by the temperature sensor when subjected to transient impact of steam medium is obtained from the feedback of the response time connection instrument; based on the step response curve, the response time of the temperature sensor under the actual operating condition to be evaluated is evaluated. First, a steam medium matching the actual operating condition is generated for the actual operating condition, and then the first electromagnetic switch and the second electromagnetic switch are linked according to their respective target opening degrees, so that the response time connection instrument can obtain the step response curve generated by the temperature sensor when subjected to transient impact of steam medium, so that the temperature input is an ideal temperature step signal, thereby accurately evaluating the response time of the temperature sensor under the actual operating condition, and greatly improving the measurement accuracy of the response time. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a temperature sensor response time evaluation system in one embodiment;

[0028] Figure 2 This is a flowchart illustrating the response time evaluation system for a temperature sensor in another embodiment;

[0029] Figure 3 This is a flowchart illustrating a method for evaluating the response time of a temperature sensor in one embodiment;

[0030] Figure 4 This is a schematic diagram of the response time evaluation method for a temperature sensor in another embodiment;

[0031] Figure 5 This is a structural block diagram of a temperature sensor response time evaluation device in one embodiment;

[0032] Figure 6 This is a diagram of the internal structure of an electronic device in one embodiment. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] The response time method for temperature sensors provided in this application embodiment can be applied to, for example... Figure 1 The temperature sensor response time evaluation system shown. Among them, Figure 1 The temperature sensor response time evaluation system shown includes a controller 102, a water supply circuit 104, a steam generator 108, a first steam pipe 110, a first electromagnetic switch 112, a second steam pipe 114, and a second electromagnetic switch 118. A heating tube 106 is fixed in the cavity of the steam generator 108. A temperature sensor 120 is built into the sleeve of the second steam pipe 114, and the temperature sensor 120 is connected to a response time measuring instrument 116. One end of the steam generator 108 is connected to the water supply circuit 104, and the other end of the steam generator 108 is connected to one end of the first electromagnetic switch 112 through the first steam pipe 110. The other end of the first electromagnetic switch 112 is connected to the second electromagnetic switch 118 through the second steam pipe 114.

[0035] The water supply circuit 104 can be a circuit that supplies water to the steam generator 108. The steam generator 108 is a device used to generate steam medium. A heating tube 106 is provided in the cavity of the steam generator 108. The heating tube 106 can be a heating element with adjustable power. The heating element can be a PTC (Positive Temperature Coefficient) heating element, a rare earth thick film heating element, or a metal heating tube, etc. The water in contact with the heating element is heated and boiled by heating, and finally steam medium is obtained.

[0036] The first electromagnetic switch 112 and the second electromagnetic switch 118 can be electromagnetic switches with fast opening characteristics, such as being able to start in less than 1 second, thereby realizing the transient impact of the steam medium through the linkage of the first electromagnetic switch 112 and the second electromagnetic switch 118.

[0037] In one embodiment, the temperature sensor 120 is parallel to the cross-section of the second steam pipe 114 and located at the axis of symmetry of the cross-section. According to the size interface requirements of the second steam pipe 114, the temperature sensor 120 is installed at a suitable depth in the second steam pipe 114 to measure the response time under the steam medium.

[0038] In one embodiment, the response time measuring instrument 116 can acquire the step response signal generated by the temperature sensor 120 when subjected to a transient impact, generate a step response curve, and feed the step response curve back to the controller 102. The response time measuring instrument 116 is a multi-channel data logger, so the response time measuring instrument 116 can acquire signals from various temperature sensors and realize the acquisition and export of step response signals from various temperature sensors.

[0039] In one embodiment, the controller 102 can be an electronic device independent of the response time evaluation system, or it can be an electronic device integrated with the response time evaluation system. In this embodiment, the controller 102 can be a control motherboard, on which a CPU (Central Processing Unit) and an MCU (Micro Control Unit) can be installed.

[0040] In one embodiment, the response time evaluation system also includes a flow meter 202. The flow meter can be positioned anywhere within the response time evaluation system, as long as it can monitor the flow rate of the steam medium flowing through the first steam pipe 110 and the second steam pipe 114. Figure 2As shown, in this embodiment, the flow meter 202 is disposed between the steam generator 108 and the first electromagnetic switch 112 to monitor the flow rate of the steam medium when it flows in the first steam pipe 110 and the second steam pipe 114, thereby determining the flow rate.

[0041] In one embodiment, the controller 102 selects the actual operating condition to be evaluated; after water in the water supply circuit 104 enters the steam generator, the controller controls the heating tube 106 to heat the water in the steam generator 108 to generate steam medium; if the generated steam medium meets the preset actual operating condition conditions corresponding to the actual operating condition, the controller controls the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor 120; the controller acquires the step response curve generated by the temperature sensor 120 when subjected to the transient impact of the steam medium, which is connected to the instrument feedback; based on the step response curve, the controller evaluates the response time of the temperature sensor 120 under the actual operating condition to be evaluated.

[0042] In one embodiment, such as Figure 3 As shown, a method for evaluating the response time of a temperature sensor is provided, which can be applied to... Figure 1 Taking controller 102 as an example, the following steps are included:

[0043] Step S302: Select the actual working condition to be evaluated.

[0044] The actual operating condition to be evaluated can refer to the actual operating condition during the actual operation of a nuclear power plant. By selecting the actual operating condition to be evaluated, the controller 102 can conduct a response time evaluation, thereby specifically evaluating the response time of the temperature sensor 120 under the actual operating condition.

[0045] Specifically, different operating conditions correspond to different environmental parameters. For example, for actual operating condition A, the corresponding environmental parameters can be a temperature of 140°C, a pressure of 4 MPa, and a flow rate of 33 m / s. For actual operating condition B, the corresponding environmental parameters can be a temperature of 200°C, a pressure of 7 MPa, and a flow rate of 53 m / s. Therefore, by selecting the operating condition to be evaluated, the controller 102 can subsequently control the steam generator 108 to produce a steam medium that matches the environmental parameters, thereby simulating the real flow field conditions and improving the accuracy of response time evaluation.

[0046] Step S304: After the water in the water supply circuit enters the steam generator, the heating tube is controlled to heat the water in the steam generator to generate steam medium.

[0047] In this embodiment, after determining that water has flowed into the steam generator 108, the controller 102 controls the heating tube 106 to heat the water in the steam generator 108 to generate steam. Specifically, when water from the water supply circuit 104 flows into the steam generator 108, controlling the heating tube 106 to heat the water in the steam generator 108 to generate steam includes: when the water level flowing into the steam generator 108 reaches a preset water level, controlling the heating tube 106 to heat the water in the steam generator 108 to generate steam. The preset water level is determined by the flow rate under actual operating conditions.

[0048] The preset water level is a pre-defined water level that the water in the steam generator 108 should reach. When determining the preset water level, the controller 102 can obtain the actual flow rate and then determine the preset water level that matches the flow rate. The preset water level will vary depending on the actual operating conditions.

[0049] Specifically, when the controller 102 determines that the water level in the steam generator 108 has reached the preset water level, it will control the heating tube 106 to heat the water in the steam generator 108, so that the steam generator 108 can generate steam.

[0050] Step S306: If the generated steam medium meets the preset actual operating conditions corresponding to the actual operating conditions, then control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor.

[0051] Among them, the preset actual working conditions refer to the conditions set according to the working environment parameters corresponding to the actual working conditions to be evaluated. The target opening degree refers to the opening degree of the first electromagnetic switch 112 and the second electromagnetic switch 118 when they are turned on. The target opening degree of the first electromagnetic switch 112 and the second electromagnetic switch 118 can be consistent or different. The specific target opening degree can be adaptively adjusted according to the actual situation.

[0052] In one embodiment, the preset actual operating conditions include preset temperature conditions and preset pressure conditions, and further include: determining whether the temperature of the generated steam medium meets the preset temperature conditions and whether the pressure of the steam medium meets the preset pressure conditions; if both are met, then it is determined that the generated steam medium meets the preset actual operating conditions.

[0053] The preset operating conditions include preset temperature conditions and preset pressure conditions. When the controller 102 determines that the temperature of the steam medium meets the preset temperature conditions and the pressure of the steam medium meets the preset pressure conditions, the controller 102 can control the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor 120.

[0054] Specifically, the preset actual operating conditions can refer to whether the temperature of the steam medium reaches 160° and whether the pressure reaches 7 MPa. When the controller 102 determines that the current temperature of the steam medium reaches 160° and the pressure reaches 7 MPa, the controller 102 can control the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to their respective target opening degrees so that the steam medium can be output to the temperature sensor 120 in a transient impact manner.

[0055] In the above embodiments, the controller 102 determines whether to output steam medium to the temperature sensor 120 according to the preset actual operating conditions corresponding to the actual operating conditions, which can make the subsequent obtained step response curve match the actual operating conditions and effectively improve the evaluation accuracy.

[0056] Step S308: Obtain the step response curve generated by the temperature sensor fed back by the response time connection instrument when subjected to transient impact of steam medium.

[0057] Since the first electromagnetic switch 112 and the second electromagnetic switch 118 have the characteristic of fast opening, when the controller 102 controls the first electromagnetic switch 112 and the second electromagnetic switch 118 to link together according to their respective target opening degrees, the temperature sensor 120 will be subjected to the transient impact of the steam medium. Therefore, the response time connection instrument 116 can generate a step response curve based on the step response signal generated by the temperature sensor 120 when it receives the transient impact of the steam medium, and finally feed the step response curve back to the controller 102.

[0058] Step S310: Based on the step response curve, evaluate the response time of the temperature sensor 120 under the actual operating conditions to be evaluated.

[0059] After receiving the step response curve, the controller 102 can evaluate the response time of the temperature sensor 120 under actual working conditions based on the step response curve.

[0060] For details, please refer to Figure 4The figure shows a schematic diagram of the step response curve of the temperature sensor 120. The controller 102 can use the characteristic point (such as 10% of the step amplitude) in the transient curve of the temperature sensor 120 itself as the starting temperature point, and the time taken for the temperature to rise from the starting temperature point to 63.2% of the temperature step value at the ending temperature point as the response time of the temperature sensor 120.

[0061] In the above-mentioned method for evaluating the response time of temperature sensor 120, the actual working condition to be evaluated is selected; after water in the water supply circuit 104 enters the steam generator 108, the heating tube 106 is controlled to heat the water in the steam generator 108 to generate steam medium; if the generated steam medium meets the preset actual working condition conditions corresponding to the actual working condition, the first electromagnetic switch 112 and the second electromagnetic switch 118 are controlled to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor 120; the step response curve generated by the temperature sensor 120 when subjected to the transient impact of the steam medium is obtained from the feedback of the response time connection instrument 116; based on the step response curve, the response time of the temperature sensor 120 under the actual working condition to be evaluated is evaluated. First, a steam medium matching the actual working conditions is generated. Then, the first electromagnetic switch 112 and the second electromagnetic switch 118 are linked according to their respective target opening degrees, so that the response time connection instrument 116 can obtain the step response curve generated by the temperature sensor 120 when subjected to transient impact of the steam medium, so that the temperature input is an ideal temperature step signal, thereby accurately evaluating the response time of the temperature sensor 120 under actual working conditions, and greatly improving the measurement accuracy of the response time.

[0062] In one embodiment, the response time evaluation system further includes a flow meter 202; before controlling the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to the target opening degree, the system further includes: controlling the first electromagnetic switch 112 to maintain a first preset opening degree and controlling the second electromagnetic switch 118 to maintain a second preset opening degree, and acquiring the flow parameters measured by the flow meter 202; comparing the flow parameters with a preset flow threshold to obtain a comparison result; and adjusting the first preset opening degree of the first electromagnetic switch 112 and the second preset opening degree of the second electromagnetic switch 118 according to the comparison result.

[0063] Among them, the flow parameter can refer to the flow velocity of the steam medium in the pipeline, and the preset flow threshold refers to the flow parameter set according to the actual working conditions. Different actual working conditions will result in different preset flow thresholds. Before the controller 102 controls the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to the target opening degree, it will first determine the target opening degree of the first electromagnetic switch 112 and the second electromagnetic switch 118.

[0064] Wherein, the first preset opening degree refers to the initial opening degree set by the controller 102 when the target opening degree of the first electromagnetic switch 112 is determined, and the second preset opening degree refers to the initial opening degree set by the controller 102 when the target opening degree of the second electromagnetic switch 118 is determined. The controller 102 controls the first electromagnetic switch 112 to maintain the first preset opening degree and controls the second electromagnetic switch 118 to maintain the second preset opening degree, and obtains the flow parameters at the current opening degree measured by the flow meter 202, and compares the flow parameters with the preset flow threshold to obtain the comparison result; according to the comparison result, the first preset opening degree of the first electromagnetic switch 112 and the second preset opening degree of the second electromagnetic switch 118 are adjusted.

[0065] For example, in some embodiments, the first preset opening degree of the first electromagnetic switch 112 can be kept fully open (i.e., 100% opening degree), and the second preset opening degree of the second electromagnetic switch 118 can be kept at any proportion of opening degree, thereby ensuring that the steam medium can be output at a large flow rate when it is output.

[0066] In the above embodiments, the controller 102 sets the first electromagnetic switch 112 to maintain the first preset opening degree and the second electromagnetic switch 118 to maintain the second preset opening degree, and measures the flow rate of the steam medium at the current opening degree through the flow meter 202. Thus, the controller can adjust the initial first preset opening degree and the second preset opening degree according to the preset flow rate threshold, and accurately determine the target opening degree.

[0067] In one embodiment, based on the comparison result, the first preset opening degree of the first electromagnetic switch 112 and the second preset opening degree of the second electromagnetic switch 118 are adjusted, including: if the comparison result is that the flow parameter is less than the flow threshold, then the first preset opening degree of the first electromagnetic switch 112 and / or the second preset opening degree of the second electromagnetic switch 118 are increased according to a preset opening degree growth method until the flow parameter is equal to the flow threshold, and the updated first preset opening degree is used as the target opening degree of the first electromagnetic switch 112, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch 118; if the comparison result is that the flow parameter is greater than the flow threshold, then the first preset opening degree of the first electromagnetic switch 112 and / or the second preset opening degree of the second electromagnetic switch 118 are decreased according to a preset opening degree decrease method until the flow parameter is equal to the flow threshold, and the updated first preset opening degree is used as the target opening degree of the first electromagnetic switch 112, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch 118.

[0068] The preset opening degree increase method refers to the method of increasing the flow parameter by controlling the opening degree of the first electromagnetic switch 112 and the second electromagnetic switch 118 when the flow parameter is less than the flow threshold. Specifically, when only the first preset opening degree of the first electromagnetic switch 112 is controlled, the preset opening degree increase method can be to control only the first electromagnetic switch 112 to adjust by a first ratio, while keeping the opening degree of the second electromagnetic switch 118 unchanged; when only the second preset opening degree of the second electromagnetic switch 118 is controlled, the preset opening degree increase method can be to control only the second electromagnetic switch 118 to adjust according to a second ratio, while keeping the opening degree of the first electromagnetic switch 112 unchanged; when both the first preset opening degree of the first electromagnetic switch 112 and the second preset opening degree of the second electromagnetic switch 118 are controlled simultaneously, the preset opening degree increase method can be to control the first electromagnetic switch 112 to adjust according to the first ratio and the second electromagnetic switch 118 to adjust according to the second ratio. The first ratio and the second ratio can be the same or different, and the specific settings of the first ratio and the second ratio can be set according to the actual situation. In actual use, the specific adjustment method adopted by the controller 102 can also be adjusted according to the actual situation.

[0069] In one embodiment of this application, from the perspective of reducing control difficulty, when the flow parameter is less than the flow threshold, the controller 102 controls the first preset opening degree of the first electromagnetic switch 112 to remain unchanged, and the second preset opening degree of the second electromagnetic switch 118 to increase until the flow parameter is equal to the flow threshold. Finally, the updated first preset opening degree is used as the target opening degree of the first electromagnetic switch 112, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch 118.

[0070] The preset opening reduction method refers to a method that reduces the flow parameter by controlling the opening of the first electromagnetic switch 112 and the second electromagnetic switch 118 when the flow parameter exceeds the flow threshold. Specifically, when only the first preset opening of the first electromagnetic switch 112 is controlled, the preset opening reduction method can be to control the first electromagnetic switch 112 to adjust by a first ratio while keeping the opening of the second electromagnetic switch 118 unchanged. When only the second preset opening of the second electromagnetic switch 118 is controlled, the preset opening reduction method can be to control the second electromagnetic switch 118 to adjust by a second ratio while keeping the opening of the first electromagnetic switch 112 unchanged. When both the first preset opening of the first electromagnetic switch 112 and the second preset opening of the second electromagnetic switch 118 are controlled simultaneously, the preset opening reduction method can be to control the first electromagnetic switch 112 to adjust by a first ratio and the second electromagnetic switch 118 to adjust by a second ratio. The first and second ratios can be the same or different, and their specific settings can be configured according to actual conditions. In actual use, the specific adjustment method adopted by the controller 102 can also be adjusted according to actual conditions.

[0071] Similarly, from the perspective of reducing control difficulty, in one embodiment, when the flow parameter is greater than the flow threshold, the controller 102 can control the first preset opening degree of the first electromagnetic switch 112 to remain unchanged, and the second preset opening degree of the second electromagnetic switch 118 to decrease until the flow parameter is equal to the flow threshold. The updated first preset opening degree is used as the target opening degree of the first electromagnetic switch 112, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch 118.

[0072] In the above embodiments, the controller 102 updates the flow parameters by adjusting the first preset opening degree and the second preset opening degree. Since only one of the first electromagnetic switches 112 needs to be adjusted each time, the control difficulty can be effectively reduced, and the final target opening degree matches the flow rate under actual operating conditions, thereby improving the evaluation accuracy. Of course, in some embodiments, when the flow parameters are not equal to the flow threshold, the second preset opening degree of the second electromagnetic switch 118 can be kept unchanged, and the flow parameters can be adjusted only by adjusting the first preset opening degree of the first electromagnetic switch 112 to make the flow parameters equal to the flow threshold. This will not be elaborated further here.

[0073] In one embodiment, controlling the first electromagnetic switch 112 and the second electromagnetic switch 118 to be linked according to their respective target opening degrees so that the steam medium is output to the temperature sensor 120 includes: controlling the first electromagnetic switch 112 to open according to the corresponding target opening degree and the second electromagnetic switch 118 to open according to the corresponding target opening degree so that the steam medium is output to the temperature sensor 120 according to the steam flow rate corresponding to the actual working condition to be evaluated.

[0074] The controller 102 controls the first electromagnetic switch 112 to open according to the corresponding target opening degree, and the second electromagnetic switch 118 to open according to the corresponding target opening degree, so that the steam medium can be output to the temperature sensor 120 according to the steam flow rate corresponding to the actual working condition to be evaluated. Since the flow rate of the steam is precisely controlled, the evaluation accuracy can be effectively improved.

[0075] To illustrate the response time evaluation process of temperature sensor 120, the following are the complete steps of a response time evaluation method for temperature sensor 120 in one embodiment:

[0076] First, the controller 102 selects the actual operating condition to be evaluated and performs a response time evaluation, which allows the response time of the temperature sensor 120 under actual operating conditions to be evaluated.

[0077] When the controller 102 determines that the water level in the steam generator 108 has reached the preset water level, it will control the heating tube 106 to heat the water in the steam generator 108, so that the steam generator 108 can generate steam. When determining the preset water level, the controller 102 can obtain the flow rate under the actual working conditions, and then determine the preset water level that matches the flow rate. The preset water level will vary depending on the actual working conditions.

[0078] When the controller 102 determines that the temperature of the steam medium meets the preset temperature regulation and the pressure of the steam medium meets the preset pressure condition, the controller 102 can control the first electromagnetic switch 112 and the second electromagnetic switch 118 to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor 120. The target opening degree is matched with the flow rate under actual working conditions.

[0079] Because the first electromagnetic switch 112 and the second electromagnetic switch 118 have the characteristic of fast opening, when the controller 102 controls the first electromagnetic switch 112 and the second electromagnetic switch 118 to link together according to their respective target opening degrees, the temperature sensor 120 will be subjected to the transient impact of the steam medium. Therefore, the response time connection instrument 116 can generate a step response curve based on the step response curve generated by the temperature sensor 120 when it receives the transient impact of the steam medium, and finally feed the step response curve back to the controller 102.

[0080] After receiving the step response curve, the controller 102 can evaluate the response time of the temperature sensor 120 under actual operating conditions based on the step response curve.

[0081] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0082] Based on the same inventive concept, this application also provides a response time evaluation device for a temperature sensor to implement the above-described method for evaluating the response time of a temperature sensor. The solution provided by this device is similar to the implementation described in the above method. Therefore, the specific limitations in one or more embodiments of the response time evaluation device for a temperature sensor provided below can be found in the limitations of the temperature sensor response time evaluation method described above, and will not be repeated here.

[0083] In one embodiment, such as Figure 5 As shown, a response time evaluation device for a temperature sensor is provided, comprising: a selection module 502, a first control module 504, a second control module 506, an acquisition module 508, and an evaluation module 510, wherein:

[0084] Select module 502 is used to select the actual operating condition to be evaluated.

[0085] The first control module 504 is used to control the heating tube to heat the water in the steam generator after the water in the water supply circuit enters the steam generator, so as to generate steam medium.

[0086] The second control module 506 is used to control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees if the generated steam medium meets the preset actual working conditions corresponding to the actual working conditions, so that the steam medium is output to the temperature sensor.

[0087] The acquisition module 508 is used to acquire the step response curve generated by the temperature sensor connected to the instrument when subjected to transient impact from the steam medium.

[0088] Evaluation module 510 is used to evaluate the response time of the temperature sensor under the actual operating conditions to be evaluated based on the step response curve.

[0089] In one embodiment, the second control module 506 is further configured to control the first electromagnetic switch to maintain a first preset opening degree and control the second electromagnetic switch to maintain a second preset opening degree, and to acquire the flow parameters measured by the flow meter; compare the flow parameters with a preset flow threshold to obtain a comparison result; and adjust the first preset opening degree of the first electromagnetic switch and the second preset opening degree of the second electromagnetic switch according to the comparison result.

[0090] In one embodiment, the second control module 506 is further configured to: if the comparison result is that the flow parameter is less than the flow threshold, control the first preset opening degree of the first electromagnetic switch to remain unchanged, and increase the second preset opening degree of the second electromagnetic switch until the flow parameter is equal to the flow threshold, and use the updated first preset opening degree as the target opening degree of the first electromagnetic switch and the updated second preset opening degree as the target opening degree of the second electromagnetic switch; if the comparison result is that the flow parameter is greater than the flow threshold, control the first preset opening degree of the first electromagnetic switch to remain unchanged, and decrease the second preset opening degree of the second electromagnetic switch until the flow parameter is equal to the flow threshold, and use the updated first preset opening degree as the target opening degree of the first electromagnetic switch and the updated second preset opening degree as the target opening degree of the second electromagnetic switch.

[0091] In one embodiment, the first control module 504 is further configured to control the first electromagnetic switch to open according to the corresponding target opening degree and the second electromagnetic switch to open according to the corresponding target opening degree, so that the steam medium is output to the temperature sensor according to the steam flow rate corresponding to the actual working condition to be evaluated.

[0092] In one embodiment, the second control module 506 is further configured to determine whether the temperature of the generated steam medium meets the preset temperature condition and whether the pressure of the steam medium meets the preset pressure condition; if both are met, then it is determined that the generated steam medium meets the preset actual operating conditions.

[0093] In one embodiment, the first control module 504 is further configured to determine the flow rate under actual working conditions based on the actual working conditions, and determine the preset water level based on the flow rate.

[0094] Each module in the aforementioned temperature sensor response time evaluation device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0095] In one embodiment, an electronic device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 6As shown, the electronic device includes a controller, memory, input / output interface, communication interface, display unit, and input device. The controller, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The controller provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface is used for exchanging information between the controller and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When executed by the controller, the computer program implements a method for evaluating the response time of a temperature sensor. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the electronic device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the electronic device, or external keyboards, touchpads, or mice, etc.

[0096] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0097] In one embodiment, an electronic device is provided, including a memory and a controller, wherein the memory stores a computer program, and the controller executes the computer program to implement the steps of the above-described method for evaluating the response time of a temperature sensor.

[0098] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method for evaluating the response time of a temperature sensor.

[0099] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the above-described method for evaluating the response time of a temperature sensor.

[0100] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data shall comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0101] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0102] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for evaluating the response time of a temperature sensor, characterized in that, The temperature sensor is deployed in the response time evaluation system, which includes a water supply circuit, a steam generator, a first steam pipe, a first electromagnetic switch, a second steam pipe, and a second electromagnetic switch. A heating tube is fixed in the cavity of the steam generator, and a temperature sensor is built into the sleeve of the second steam pipe. The temperature sensor is connected to a response time measuring instrument. One end of the steam generator is connected to the water supply circuit, and the other end of the steam generator is connected to one end of the first electromagnetic switch through the first steam pipe. The other end of the first electromagnetic switch is connected to the second electromagnetic switch through the second steam pipe. The method includes: Select the actual operating conditions to be evaluated; After the water in the water supply circuit enters the steam generator, the heating tube is controlled to heat the water in the steam generator to generate steam. If the generated steam medium meets the preset actual working conditions corresponding to the actual working conditions, then control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees so that the steam medium is output to the temperature sensor. Obtain the step response curve generated by the temperature sensor when subjected to transient impact from the steam medium, as fed back by the instrument connected to the response time. Based on the step response curve, the response time of the temperature sensor under the actual operating conditions to be evaluated is evaluated.

2. The method according to claim 1, characterized in that, The response time assessment system also includes a flow meter; Before controlling the first electromagnetic switch and the second electromagnetic switch to operate in conjunction with each other according to the target opening degree, the method further includes: Control the first electromagnetic switch to maintain a first preset opening degree, and control the second electromagnetic switch to maintain a second preset opening degree, and acquire the flow parameters measured by the flow meter; The flow parameters are compared with a preset flow threshold to obtain a comparison result; Based on the comparison results, the first preset opening degree of the first electromagnetic switch and the second preset opening degree of the second electromagnetic switch are adjusted.

3. The method according to claim 2, characterized in that, The step of adjusting the first preset opening degree of the first electromagnetic switch and the second preset opening degree of the second electromagnetic switch based on the comparison result includes: If the comparison result is that the flow parameter is less than the flow threshold, then the first preset opening degree of the first electromagnetic switch and / or the second preset opening degree of the second electromagnetic switch are controlled to increase according to the preset opening degree growth method until the flow parameter is equal to the flow threshold, and the updated first preset opening degree is used as the target opening degree of the first electromagnetic switch, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch. If the comparison result is that the flow parameter is greater than the flow threshold, then the first preset opening degree of the first electromagnetic switch and / or the second preset opening degree of the second electromagnetic switch are controlled to decrease in a preset opening degree decreasing manner until the flow parameter is equal to the flow threshold degree, and the updated first preset opening degree is used as the target opening degree of the first electromagnetic switch, and the updated second preset opening degree is used as the target opening degree of the second electromagnetic switch.

4. The method according to claim 1, characterized in that, The method of controlling the first electromagnetic switch and the second electromagnetic switch to operate in conjunction with each other according to their respective target opening degrees, so that the steam medium is output to the temperature sensor, includes: The first electromagnetic switch is controlled to open according to the corresponding target opening degree, and the second electromagnetic switch is controlled to open according to the corresponding target opening degree, so that the steam medium is output to the temperature sensor according to the steam flow rate corresponding to the actual working condition to be evaluated.

5. The method according to claim 1, characterized in that, The preset actual operating conditions include preset temperature conditions and preset pressure conditions, and the method further includes: Determine whether the temperature of the generated steam medium meets the preset temperature condition and whether the pressure of the steam medium meets the preset pressure condition. If all conditions are met, then the generated steam medium is determined to meet the preset actual operating conditions.

6. The method according to claim 1, characterized in that, When water flows into the steam generator from the water supply circuit, the heating element is controlled to heat the water in the steam generator to generate steam, including: When the water level flowing into the steam generator reaches the preset water level, the heating tube is controlled to heat the water in the steam generator to generate steam. The preset water level is determined by the flow rate under the actual working conditions.

7. A device for evaluating the response time of a temperature sensor, characterized in that, The device includes: The selection module is used to select the actual operating conditions to be evaluated; The first control module is used to control the heating tube to heat the water in the steam generator after the water in the water supply circuit enters the steam generator to generate steam medium. The second control module is used to control the first electromagnetic switch and the second electromagnetic switch to work together according to their respective target opening degrees if the generated steam medium meets the preset actual working conditions corresponding to the actual working conditions, so that the steam medium is output to the temperature sensor. The acquisition module is used to acquire the step response curve generated by the temperature sensor fed back by the response time connection instrument when subjected to the transient impact of the steam medium; The evaluation module is used to evaluate the response time of the temperature sensor under the actual operating conditions to be evaluated, based on the step response curve.

8. A response time evaluation system for a temperature sensor, comprising a controller, a water supply circuit, a steam generator, a first steam pipe, a first electromagnetic switch, a second steam pipe, and a second electromagnetic switch, wherein a heating tube is fixed in the cavity of the steam generator, a temperature sensor is built into the sleeve of the second steam pipe, and the temperature sensor is connected to a response time measuring instrument; one end of the steam generator is connected to the water supply circuit, the other end of the steam generator is connected to one end of the first electromagnetic switch through the first steam pipe, and the other end of the first electromagnetic switch is connected to the second electromagnetic switch through the second steam pipe, characterized in that... When the controller executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the controller, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When executed by the controller, the computer program performs the steps of the method according to any one of claims 1 to 6.

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