Multi-state comprehensive measurement device and method for main equipment mounting frame

Abstract

The invention belongs to the technical field of isotope separation, and particularly relates to a multi-state comprehensive measurement device and method for a main equipment mounting rack. The device comprises a temperature monitoring probe, a vibration sensing probe, a cooling water leakage probe and a test box, the temperature monitoring probe is used for collecting the temperature of the main equipment racking power supply busbar in real time and sending a collected temperature signal to the test box; the vibration sensing probe is used for collecting a vibration signal of the main equipment mounting rack and sending the vibration signal to the test box; the cooling water leakage probe is used for monitoring the leakage phenomenon of the main equipment racking cooling water pipe joint in real time and sending a collected leakage signal to the test box; and the test box is used for judging the health degree of the main equipment mounting rack according to the received signal. According to the embodiment of the invention, a multi-dimensional safety monitoring function is realized, the blank of safety monitoring of main equipment racking is filled, and a guarantee is provided for the operation safety of nuclear facilities.

Description

Technical Field

[0001] This application belongs to the field of isotope separation technology, specifically relating to a multi-state integrated measurement device and method for main equipment mounting. Background Technology

[0002] The main equipment is a critical component in nuclear fuel production, and its long-term stable operation is essential for the safety and efficiency of the entire plant. Currently, the main equipment is primarily monitored using its built-in protective devices, which are limited in function and typically only monitor basic parameters such as rotational speed and vibration amplitude. However, based on extensive practical experience, the operating status and lifespan of the main equipment are influenced by a variety of complex factors, and existing single-parameter monitoring methods are insufficient to meet the needs for early warning and accurate diagnosis of equipment health conditions. Summary of the Invention

[0003] The purpose of this application is to provide a multi-state integrated measurement device and method for main equipment mounting, which solves the problem that existing single-parameter monitoring methods are no longer sufficient to meet the needs of early warning and accurate diagnosis of equipment health status.

[0004] The technical solution to achieve the purpose of this application is as follows:

[0005] The first aspect of this application provides a multi-state integrated measurement device for main equipment mounting, the device comprising: a temperature monitoring probe, a vibration sensing probe, a cooling water dripping probe, and a test box;

[0006] The temperature monitoring probe, the vibration sensing probe, and the cooling water dripping probe are all connected to the test box;

[0007] The temperature monitoring probe is used to collect the temperature of the main equipment rack power bus in real time and send the collected temperature signal to the test box;

[0008] The vibration sensing probe is used to collect vibration signals from the main equipment mounting and send the vibration signals to the test box.

[0009] The cooling water drip probe is used to monitor the dripping phenomenon of the cooling water pipe joint of the main equipment rack in real time, and send the collected dripping signal to the test box.

[0010] The test box is used to determine the health status of the main equipment rack based on the received signals.

[0011] Optionally, the temperature monitoring probe is a contact-type resistance temperature detector (RTD) sensor, which is installed at the wiring bolt of the power bus.

[0012] Optionally, the cooling water dripping probe adopts a contact detection principle, where the resistance value changes when the detection surface of the cooling water dripping probe comes into contact with liquid water.

[0013] Optionally, the cooling water drip probe is arranged at the cooling water pipe joint of the main equipment rack.

[0014] Optionally, the test box includes: a signal conversion circuit, a data acquisition circuit, and a microcontroller;

[0015] The signal conversion circuit is used to preprocess the received signal and send the preprocessed signal to the acquisition circuit.

[0016] The acquisition circuit is used to convert the preprocessed signal into a digital quantity and send it to the microcontroller.

[0017] The microcontroller is used to determine the health status of the main device rack based on the received digital data.

[0018] Optionally, the test box further includes: a communication circuit;

[0019] The microcontroller is also connected to the communication circuit, which sends the processed data to the upper-level control network.

[0020] Optionally, the test box further includes: a rotational speed measurement circuit;

[0021] The rotational speed measurement circuit is connected to the microcontroller and is used to measure the rotational speed and vibration amplitude of the main equipment and send them to the microcontroller.

[0022] Optionally, the test box is also used to generate a corresponding alarm signal and perform anomaly location when it is determined that the main equipment rack is in an abnormal state.

[0023] The second aspect of this application provides a multi-state integrated measurement method for main equipment mounting, applicable to any one of the multi-state integrated measurement devices for main equipment mounting provided in the first aspect of this application; the method includes:

[0024] The test box receives signals;

[0025] The test box determines whether the received signal exceeds a corresponding preset threshold.

[0026] If so, the test box determines that the main device rack is in an abnormal state.

[0027] Optionally, after the test box determines that the main equipment rack is in an abnormal state, it further includes:

[0028] The test box generates an alarm signal and determines the location of the anomaly based on the received signal;

[0029] The alarm signal corresponds to the received signal.

[0030] The beneficial technical effects of this application are as follows:

[0031] This application provides a multi-state integrated measurement device and method for main equipment racks. The device includes: a temperature monitoring probe, a vibration sensing probe, a cooling water leak probe, and a test box. The temperature monitoring probe, vibration sensing probe, and cooling water leak probe are all connected to the test box. The temperature monitoring probe is used to collect the temperature of the main equipment rack's power busbar in real time and send the collected temperature signal to the test box. The vibration sensing probe is used to collect the vibration signal of the main equipment rack and send the vibration signal to the test box. The cooling water leak probe is used to monitor the dripping phenomenon of the cooling water pipe joints of the main equipment rack in real time and send the collected dripping signal to the test box. The test box is used to determine the health status of the main equipment rack based on the received signals. This application implements multi-dimensional safety monitoring functions, filling the gap in main equipment rack safety monitoring and providing a guarantee for the operational safety of nuclear facilities. With the continuous expansion of nuclear fuel separation production scale and the increasing number of nuclear fuel production line construction projects, the economic and social benefits created will be even more considerable. Attached Figure Description

[0032] Figure 1 A schematic diagram of the structure of a main equipment mounting multi-state integrated measurement device provided in this application embodiment;

[0033] Figure 2 This is a schematic diagram of the structure of a test box in a multi-state integrated measurement device for main equipment mounting, provided as a specific embodiment of this application. Detailed Implementation

[0034] To enable those skilled in the art to better understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this application, and not all of them. Based on the embodiments described in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The inventors of this application discovered in their research that existing single-parameter monitoring methods are no longer sufficient to meet the needs for early warning and accurate diagnosis of equipment health status, specifically in the following three aspects:

[0036] (1) The lack of vibration condition monitoring makes predictive maintenance impossible.

[0037] Existing protection devices lack the capability to monitor specific vibration characteristics. In actual operation, when the main equipment rotor experiences a slight positional shift due to wear or other reasons, abnormal vibrations can occur. At this stage, the main equipment speed may not yet show a significant decrease, but it is already a precursor to equipment deterioration and the end of its lifespan. If abnormalities can be detected in time through vibration monitoring at this early stage, and intervention measures such as improving power supply quality, adjusting operating parameters, and tightening mounting bolts can be taken, equipment degradation can be effectively delayed and its service life extended. Currently, because there are no dedicated vibration measurement points and devices on the mounting, the best early warning and maintenance opportunities are missed, failing to meet the high reliability requirements of modern nuclear fuel production lines.

[0038] (2) The lack of automatic monitoring for cooling water leakage from the mounting frame poses a safety hazard.

[0039] To ensure high-speed operation, the main equipment requires a continuous supply of cooling water, resulting in a large number of cooling water pipes surrounding the mounting. During long-term operation, operators have discovered leaks at some pipe joints due to mechanical vibration, aging gaskets, or installation defects. Minor leaks can lead to equipment corrosion, while severe leaks can seep into the main equipment's power sockets, causing short circuits, unplanned shutdowns, and significant economic losses. Currently, the detection of cooling water leaks relies entirely on periodic manual inspections. With the expansion of production scale and the multiplication of pipe joints, manual inspections are not only labor-intensive and inefficient but also prone to missed leaks, becoming a weak link in safe production operations.

[0040] (3) The power bus temperature lacks real-time monitoring, posing a risk of overheating.

[0041] The power busbars mounted on the main equipment racks are responsible for supplying power to all main equipment. During operation, defects in their own quality, aging of contact points, or poor contact can easily lead to overheating of local contact points, potentially even causing a fire, seriously threatening production safety and the stability of nuclear facilities. Existing protection devices lack temperature monitoring capabilities and are powerless to address such potential hazards. Currently, manual inspection of busbar temperatures is still used, making real-time monitoring difficult and failing to issue alarms in the early stages of abnormal temperature increases, resulting in significant lags in safety management.

[0042] In summary, the existing single protection devices that mainly monitor rotation speed and amplitude, as well as the mode that relies heavily on manual inspection, are no longer able to meet the safe operation requirements of large-scale, high-reliability nuclear fuel production lines.

[0043] Therefore, this application provides a multi-state integrated measurement device and method for main equipment racks. Building upon existing speed and amplitude monitoring, it proposes a system and method capable of integrated real-time online monitoring of multiple parameters such as vibration, leakage, temperature, and main equipment speed. By integrating a specially designed temperature monitoring probe, it achieves real-time acquisition of the main equipment rack power busbar temperature; by integrating a specially designed vibration sensing probe in conjunction with a dedicated measurement unit, it acquires and processes vibration signals; and by integrating a cooling water leakage probe, it achieves real-time monitoring of leakage at the cooling water pipe joints of the main equipment rack. This enables a shift from "reactive maintenance" to "predictive maintenance," fundamentally improving equipment safety and operational efficiency.

[0044] Based on the above, in order to clearly and in detail illustrate the advantages of this application, the specific embodiments of this application will be described below in conjunction with the accompanying drawings.

[0045] See Figure 1 The figure is a schematic diagram of the structure of a main equipment mounting multi-state integrated measurement device provided in an embodiment of this application.

[0046] This application provides a multi-state integrated measurement device for main equipment mounting, comprising: a temperature monitoring probe 100, a vibration sensing probe 200, a cooling water dripping probe 300, and a test box 400;

[0047] The temperature monitoring probe 100, the vibration sensing probe 200, and the cooling water dripping probe 300 are all connected to the test box 400;

[0048] The temperature monitoring probe 100 is used to collect the temperature of the main equipment rack power bus in real time and send the collected temperature signal to the test box 400;

[0049] The vibration sensing probe 200 is used to collect the vibration signal of the main equipment rack and send the vibration signal to the test box 400;

[0050] The cooling water dripping probe 300 is used to monitor the dripping phenomenon of the cooling water pipe joint of the main equipment rack in real time, and send the collected dripping signal to the test box 400.

[0051] The test box 400 is used to determine the health status of the main equipment rack based on the received signals.

[0052] It is understood that the vibration sensor 200 can be used to monitor minute vibrations of the main equipment rack, converting mechanical vibration displacement signals into high-precision sinusoidal electrical signals. In specific implementations, the vibration sensor 200 can be arranged at a corresponding part of the main equipment rack, such as on the main steel beam of the main unit rack, and its output end is connected to the measuring box 400.

[0053] In this embodiment, the temperature monitoring probe 100, vibration sensing probe 200, and cooling water dripping probe 300 are all positioned at corresponding locations on the main equipment rack and connected to the measuring box 400, transmitting the collected signals to the measuring box 400 for processing. Upon receiving the data, the measuring box 400 performs a comprehensive health assessment based on its built-in algorithm. It promptly alarms when abnormal trends or states occur, prompting operators to take timely intervention measures to extend machine life. Simultaneously, by collecting and analyzing machine health operation data, it provides data support for the design and manufacturing of the main equipment. This embodiment transforms the original single speed measurement into a multi-parameter, multi-dimensional comprehensive measurement, which can replace some manual inspection work in daily operation, improving the safety of the main equipment rack operation and thus achieving safe production in the factory.

[0054] In a specific example, the temperature monitoring probe 100 may be a contact-type resistance temperature sensor, such as a platinum resistance temperature sensor, installed at the wiring bolt of the power bus.

[0055] Understandably, the high sensitivity and accuracy of the platinum resistance temperature sensor are utilized, and it is directly mounted on the wiring bolt of the power busbar for real-time monitoring of temperature changes. The output of the temperature monitoring probe 100 can be connected to the corresponding signal input interface of the measuring box 400 via a cable.

[0056] In another example, the cooling water drip probe 300 uses a contact detection principle. When the detection surface of the cooling water drip probe 300 comes into contact with liquid water, the resistance value changes.

[0057] As an example, the cooling water drip probe 300 is arranged at the cooling water pipe joint of the main equipment rack.

[0058] Understandably, the cooling water drip probe 300 is placed near the joint or leak point of the cooling water pipe, and can detect water droplets or leaks with high sensitivity, and output the signal to the measuring box 400.

[0059] It should be noted that, based on historical operating experience, abnormal overheating of the power busbar often originates at its wiring bolt connection points. Therefore, in this embodiment, the temperature monitoring probe 100 is precisely positioned near the wiring bolts on the power busbar housing to directly monitor the temperature rise at that location. The vibration sensing probe 200 is mounted on the steel beam of the main unit mounting frame to detect mechanical vibrations caused by equipment malfunctions (such as rotor misalignment). The cooling water leak probe 300 is deployed at leak-prone points such as the pipe joints of the main unit's cooling water pipes to detect cooling water leaks in real time. The signals collected by the temperature monitoring probe 100, the vibration sensing probe 200, and the cooling water leak probe 300 are transmitted to the measurement box 400 for unified processing.

[0060] Among the possible implementations of this application, such as Figure 2 As shown, the test box 400 may specifically include: a signal conversion circuit 401, a data acquisition circuit 402, and a microcontroller 403;

[0061] The signal conversion circuit 401 is used to preprocess the received signal and send the preprocessed signal to the acquisition circuit 402.

[0062] The acquisition circuit 402 is used to convert the preprocessed signal into a digital quantity and send it to the microcontroller 403.

[0063] The microcontroller 403 is used to determine the health status of the main device rack based on the received digital quantity.

[0064] In practical implementation, the signal conversion circuit 401 can be responsible for preprocessing the input multi-channel sensor signals. For the resistance signals output by the temperature monitoring probe 100 and the cooling water drip probe 300, they can first be converted into analog pulse signals, followed by signal amplification and filtering to suppress noise interference and improve the signal-to-noise ratio. For the sine wave signal output by the vibration sensing probe 200, it can first be filtered and amplified, then converted into a standard square wave signal for subsequent acquisition by the acquisition circuit 402.

[0065] The data acquisition circuit 402 can be an analog-to-digital converter (ADC), responsible for accurately converting analog signals into digital quantities and transmitting them to the microcontroller 403. The microcontroller 403, as the system's control and computation center, receives all data from the data acquisition circuit 402. The microcontroller 403 has a built-in diagnostic algorithm that can perform real-time calculations and fusion analysis locally based on this multi-parameter data, enabling a comprehensive assessment of the health of the main equipment rack.

[0066] In one example, the test box 400 may further include: a communication circuit 404;

[0067] The single-chip microcomputer 403 is also connected to the communication circuit 404, and the processed data is sent to the upper-layer control network through the communication circuit 404.

[0068] It can be understood that the communication circuit 404 is used to realize the remote data interaction between the single-chip microcomputer 403 and the upper-layer control network. The single-chip microcomputer 403 outputs all the processed data through its serial port, which is converted into differential signals by the communication circuit 404 and then accesses the bus network. Finally, these multi-dimensional data are uploaded to the upper-layer detection system (such as DCS, PLC) for centralized display, recording, advanced analysis and linkage control, so as to completely realize the functions of multi-parameter online acquisition, analysis and early warning of the operating state of the entire main device.

[0069] In another example, the test box 400 may further include: a rotational speed measurement circuit 405;

[0070] The rotational speed measurement circuit 405 is connected to the single-chip microcomputer 403 and is used to measure the rotational speed and vibration amplitude of the main device and send them to the single-chip microcomputer 403.

[0071] In some possible implementation manners of the present application, the test box 400 may further be used to generate a corresponding alarm signal and perform abnormal positioning when it is determined that the main device mounting is in an abnormal state.

[0072] Next, a specific example is used to describe in detail a multi-state comprehensive measurement device for a main device mounting provided by an embodiment of the present application.

[0073] A multi-state comprehensive measurement device for a main device mounting provided by an embodiment of the present application, after starting, first completes hardware initialization. Subsequently, the temperature monitoring probe 100, the vibration sensing probe 200 and the cooling water drip probe 300 start data acquisition synchronously. The multiplexed analog signals collected are preprocessed such as amplified and filtered by the signal conversion circuit 401 in the measurement box 400, and then converted into digital signals by the acquisition circuit 402 and transmitted to the single-chip microcomputer 403. After receiving the data, the single-chip microcomputer 403 performs two core tasks:其一, save all the data;其二, call the built-in diagnostic algorithm to comprehensively judge each parameter and check whether it exceeds the preset safety threshold. If any parameter exceeds the limit, the single-chip microcomputer 403 determines it as an abnormal state, immediately generates a corresponding alarm signal and accurately locates the specific parameter where the abnormality occurs. Finally, the single-chip microcomputer 403 packs the real-time data and alarm information and sends them to the upper computer system through the communication circuit 404. The device is default in the continuous monitoring mode and will loop through the above processes of acquisition, judgment and upload; the process ends only when a stop instruction is received or the system is powered off.

[0074] This application provides a multi-state integrated measurement device for main equipment racks, including: a temperature monitoring probe, a vibration sensing probe, a cooling water dripping probe, and a test box. The temperature monitoring probe, vibration sensing probe, and cooling water dripping probe are all connected to the test box. The temperature monitoring probe is used to collect the temperature of the main equipment rack's power busbar in real time and send the collected temperature signal to the test box. The vibration sensing probe is used to collect the vibration signal of the main equipment rack and send the vibration signal to the test box. The cooling water dripping probe is used to monitor the dripping phenomenon of the cooling water pipe joints of the main equipment rack in real time and send the collected dripping signal to the test box. The test box is used to determine the health status of the main equipment rack based on the received signals. This application implements multi-dimensional safety monitoring functions, filling the gap in main equipment rack safety monitoring and providing a guarantee for the operational safety of nuclear facilities. With the continuous expansion of nuclear fuel separation production scale and the increasing number of nuclear fuel production line construction projects, the economic and social benefits created will be even more considerable.

[0075] Based on the main equipment mounting multi-state integrated measurement device provided in the above embodiments, this application also provides a main equipment mounting multi-state integrated measurement method, which can be applied to any one of the main equipment mounting multi-state integrated measurement devices provided in the above embodiments.

[0076] This application provides a method for comprehensive measurement of a main equipment rack in multiple states, including:

[0077] Step S101: The test box receives a signal;

[0078] Step S102: The test box determines whether the received signal exceeds the corresponding preset threshold; if so, proceed to step S103.

[0079] Step S103: The test box determines that the main equipment rack is in an abnormal state.

[0080] In one example, step S103 may be followed by:

[0081] The test box generates an alarm signal and determines the location of the anomaly based on the received signal;

[0082] The alarm signal corresponds to the received signal.

[0083] This application provides a multi-state integrated measurement method for main equipment mounting, which realizes multi-dimensional safety monitoring functions, fills the gap in main equipment mounting safety monitoring, and provides a guarantee for the operational safety of nuclear facilities. With the continuous expansion of nuclear fuel separation production scale and the increasing number of nuclear fuel production line construction projects, the economic and social benefits created will be even more considerable.

[0084] The present application has been described in detail above with reference to the accompanying drawings and embodiments. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present application. All content not described in detail in this application can be derived from existing technology.

Claims

1. A main equipment rack-mounted multi-state comprehensive measuring device, characterized in that, The device comprises a temperature monitoring probe, a vibration sensing probe, a cooling water drop-out probe and a test box. The temperature monitoring probe, the vibration sensing probe and the cooling water drop-out probe are connected with the test box. The temperature monitoring probe is used for collecting the temperature of the power busbar of the main equipment rack in real time and sending the collected temperature signal to the test box. The vibration sensing probe is used for collecting the vibration signal of the main equipment rack and sending the vibration signal to the test box. The cooling water drop-out probe is used for monitoring the drop-out phenomenon of the cooling water pipe joint of the main equipment rack in real time and sending the collected drop-out signal to the test box. The test box is used for judging the health degree of the main equipment rack according to the received signal.

2. The master device rack multi-state comprehensive measurement device according to claim 1, characterized in that, The temperature monitoring probe is a contact type thermistor sensor installed at the wiring bolt of the power busbar.

3. The master device rack multi-state comprehensive measurement device of claim 1, wherein, The cooling water drop-out probe adopts a contact type detection principle. When the detection surface of the cooling water drop-out probe contacts with liquid water, the resistance value changes.

4. The master device rack multi-state comprehensive measurement device according to claim 3, characterized in that, The cooling water drop-out probe is arranged at the cooling water pipe joint of the main equipment rack.

5. The master device rack-mounted multi-state comprehensive measurement device according to any one of claims 1-4, characterized in that, The test box comprises a signal conversion circuit, an acquisition circuit and a single-chip microcomputer. The signal conversion circuit is used for pre-processing the received signal and sending the pre-processed signal to the acquisition circuit. The acquisition circuit is used for converting the pre-processed signal into a digital quantity and sending the digital quantity to the single-chip microcomputer. The single-chip microcomputer is used for judging the health degree of the main equipment rack according to the received digital quantity.

6. The master device rack multi-state comprehensive measuring device according to claim 5, wherein, The test box further comprises a communication circuit. The single-chip microcomputer is further connected with the communication circuit and sends the processed data to the upper control network through the communication circuit.

7. The master device rack multi-state comprehensive measuring device according to claim 5, characterized in that, The test box further comprises a rotating speed measurement circuit. The rotating speed measurement circuit is connected with the single-chip microcomputer and is used for measuring the rotating speed and vibration amplitude of the main equipment and sending the rotating speed and vibration amplitude to the single-chip microcomputer.

8. The integrated measuring device for main equipment rack multi-state according to any one of claims 1-4, characterized in that, The test box is further used for generating an alarm signal and positioning the abnormality when judging that the main equipment rack is in an abnormal state.

9. A multi-state integrated measurement method for main equipment mounting, characterized in that, The method is applied to the main equipment rack multi-state comprehensive measurement device of any one of claims 1-8 and comprises the following steps. The test box receives a signal. The test box judges whether the received signal exceeds a corresponding preset threshold. If yes, the test box determines that the main equipment rack is in an abnormal state.

10. The method of claim 9, wherein, After determining that the main equipment rack is in an abnormal state, the test box further generates an alarm signal and determines the abnormality according to the received signal. The alarm signal corresponds to the received signal. ​

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