System and method for detecting running condition of centrifugal machine

Abstract

The invention belongs to the technical field of uranium concentration, and particularly relates to a centrifugal machine operation condition detection system and method. The system comprises a relay KM, a temperature sensor and a signal processing module, for a target centrifugal machine of which the frequency cannot be measured, a target frequency signal line of the target centrifugal machine is connected to frequency signal lines of other centrifugal machines of which the frequency can be normally measured through the relay KM; the temperature sensor is installed on a target upper end cover of the target centrifugal machine and used for collecting the temperature of the target upper end cover. And the signal processing module is connected with the temperature sensor and is used for receiving temperature data detected by the temperature sensor and controlling the on-off of the relay KM according to the temperature data. According to the embodiment of the invention, the operation condition of the frequency measurement fault centrifugal machine can be effectively monitored and the damage can be alarmed by detecting the temperature change of the upper end cover of the centrifugal machine without changing the monitoring system, so that the normal operation of the system is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of uranium enrichment, and specifically relates to a centrifuge operation condition detection system and method. Background Art

[0002] In the cascade system, process personnel can intuitively understand the operating status of the centrifuge by monitoring the speed and frequency of the centrifuge to ensure the safe and stable operation of the entire system. Therefore, the monitoring of the speed and frequency of the centrifuge plays an extremely important role in the safe and stable operation of the entire process system.

[0003] At present, there are many centrifuges in the cascade system that cannot measure frequency due to the failure of their internal frequency measuring coils, and their operating status cannot be determined intuitively. Operators can only determine whether the centrifuge is in operation by irregular on-site measurement of back electromotive force, auscultation, etc., which is not continuous. If the centrifuge stops or breaks down, it will not be detected, alarmed, and confirmed in the first time, which has a certain impact on the stable operation of the system. Summary of the invention

[0004] The purpose of the present application is to provide a centrifuge operation status detection system and method, so as to solve the problem in the prior art that the frequency measuring coil inside the centrifuge fails and the frequency cannot be measured, and the operation status cannot be determined intuitively.

[0005] Technical solution to achieve the purpose of this application:

[0006] In a first aspect, an embodiment of the present application provides a centrifuge operation condition detection system, the system comprising: a relay KM, a temperature sensor and a signal processing module;

[0007] For a target centrifuge that cannot measure frequency, the target frequency signal line of the target centrifuge is connected to the frequency signal lines of other centrifuges that can measure frequency normally through the relay KM;

[0008] The temperature sensor is mounted on the target upper end cover of the target centrifuge and is used to collect the temperature of the target upper end cover;

[0009] The signal processing module is connected to the temperature sensor, and is used to receive temperature data detected by the temperature sensor, and control the on and off of the relay KM according to the temperature data.

[0010] Optionally, the signal processing module is specifically used to control the relay KM to disconnect when the temperature data exceeds a preset threshold.

[0011] Optionally, the signal processing module is also used to display the temperature data.

[0012] Optionally, the signal processing module is a single chip microcomputer structure.

[0013] Optionally, the temperature sensor is a DS18B20 temperature sensor.

[0014] Optionally, the relay KM is a 5V relay.

[0015] A second aspect of the embodiment of the present application provides a centrifuge operation condition detection method, which is applied to any one of the centrifuge operation condition detection systems provided in the first aspect of the embodiment of the present application; the method comprises:

[0016] The signal processing module acquires the temperature data detected by the temperature sensor;

[0017] The signal processing module determines whether the temperature data exceeds a preset threshold;

[0018] If so, the signal processing module controls the relay KM to disconnect.

[0019] The beneficial technical effects of this application are:

[0020] A centrifuge operation detection system provided in an embodiment of the present application includes: a relay KM, a temperature sensor and a signal processing module; for a target centrifuge that cannot measure frequency, the target frequency signal line of the target centrifuge is connected to the frequency signal line of other centrifuges that can measure frequency normally through the relay KM; the temperature sensor is installed on the target upper end cover of the target centrifuge, and is used to collect the temperature of the target upper end cover; the signal processing module is connected to the temperature sensor, and is used to receive the temperature data detected by the temperature sensor, and control the on and off of the relay KM according to the temperature data. The embodiment of the present application does not require any modification to the frequency measurement circuit, nor does it require any changes to the monitoring system. It only needs to add the alarm device to the existing frequency measurement circuit, and by detecting the temperature change of the upper end cover of the centrifuge, the operation of the centrifuge with frequency measurement failure can be effectively monitored and the damaged machine can be alarmed to ensure the normal operation of the system; the system can also be used to monitor centrifuges with poor operating conditions, and provide technical reserves for centrifuge operation analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a centrifuge operation condition detection system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make those skilled in the art better understand the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, not all. Based on the embodiments recorded in the present application, all other embodiments obtained by those skilled in the art without paying creative work are within the scope of protection of the present application.

[0023] In order to solve the problems of the prior art, the inventors of the present application found in their research that the temperature of the upper end cover of all centrifuges increased when they were stopped. Therefore, using the temperature change of the upper end cover of the centrifuge as the basis for judging whether the centrifuge is damaged is a method with a high accuracy rate. A temperature measuring point can be added to the upper end cover of the centrifuge that cannot measure the frequency or is in a state of lost rotation for a long time to continuously monitor the temperature change of the upper end cover of the centrifuge: first, the operating state of the centrifuge that cannot measure the frequency can be monitored; second, the change law of the upper end cover temperature parameters during the process of stopping the centrifuge can be understood, providing certain data support for the future processing of stopped or lost rotation.

[0024] To this end, the embodiment of the present application provides a centrifuge operation status detection system and method, which detects the operation status of the centrifuge with a frequency measuring coil failure by monitoring the temperature changes of the centrifuge upper end cover, and alarms for centrifuge failure and damage without affecting the normal operation of the centrifuge.

[0025] Based on the above content, in order to clearly and in detail illustrate the above advantages of the present application, the specific implementation methods of the present application will be described below in conjunction with the accompanying drawings.

[0026] See also Figure 1 , which is a structural schematic diagram of a centrifuge operation condition detection system provided in an embodiment of the present application.

[0027] The embodiment of the present application provides a centrifuge operation condition detection system, comprising: a relay KM, a temperature sensor 100 and a signal processing module 200;

[0028] For the target centrifuge 300 that cannot measure the frequency, the target frequency signal line 400 of the target centrifuge 300 is connected to the frequency signal line 600 of other centrifuges 500 that can measure the frequency normally through the relay KM;

[0029] The temperature sensor 100 is installed on the target upper end cover of the target centrifuge 300 and is used to collect the temperature of the target upper end cover;

[0030] The signal processing module 200 is connected to the temperature sensor 100 , and is used to receive temperature data detected by the temperature sensor 100 , and control the on and off of the relay KM according to the temperature data.

[0031] It can be understood that, in the embodiment of the present application, the target frequency signal line 400 of the target centrifuge 300 that cannot measure the frequency is connected to the frequency signal line 600 of the adjacent centrifuge 500 that is measuring the frequency normally through the relay KM, and at the same time, a temperature sensor 100 is installed on the target upper end cover of the target centrifuge 300, and the collected temperature data is transmitted to the signal processing module 200. The signal processing module 200 can control the conduction or cutoff of the relay KM according to the temperature data to control whether the target frequency signal line 400 can receive the frequency signal of the frequency signal line 600 of the centrifuge 500 that is measuring the frequency normally, so that the frequency signal of the frequency signal line 600 of the centrifuge 500 that is measuring the frequency normally can be used as a reference, and the temperature of the target upper end cover can be used as a basis to determine whether the target centrifuge 300 is stopped or damaged.

[0032] In one example, the signal processing module 200 is specifically configured to control the relay KM to disconnect when the temperature data exceeds a preset threshold.

[0033] Specifically, when working normally, the relay KM is in a normally closed state, the target frequency signal line 400 can receive the frequency signal of the frequency signal line 600, and the frequency of the target centrifuge 300 on the synchronization system is the normal centrifuge frequency; when the target centrifuge 300 stops or is damaged, the temperature of the target upper end cover rises, and the temperature sensor 100 detects the temperature change of the target upper end cover. The signal processing module 200 puts the relay KM in a cut-off state, and the synchronization system detects the frequency loss signal of the target centrifuge 300 and sends out an alarm, thereby notifying the operating personnel to arrive at the site as soon as possible to check the operation or damage of the centrifuge.

[0034] In another example, the signal processing module 200 is further used to display the temperature data.

[0035] As an example, the signal processing module 200 is a single chip microcomputer structure. In a specific implementation, the temperature sensor 200 can be a DS18B20 temperature sensor. The relay KM can be a 5V relay.

[0036] In a specific example, the signal processing module 200 is used to process various signals, mainly to read the temperature data of the upper cover of the centrifuge measured by the DS18B20 temperature sensor and convert it into the current temperature value, and to display the centrifuge temperature in real time on the LED digital tube, and to determine whether the measured centrifuge temperature exceeds the limit according to the set upper and lower alarm temperature thresholds. When the limit is exceeded, the control relay KM is closed to disconnect the normally closed contact and issue an alarm indication. When the program runs away, the key reset circuit can be manually reset without restarting the power supply.

[0037] Relay KM mainly includes SRD-05V relay, plus a PNP transistor for driving, the base is connected to the P3.6 port of the microcontroller, when the port becomes low level, the driving PNP transistor will be turned on, and the VCC voltage is loaded on the relay KM to make the coil close. The two ends of the 1 and 2 normally closed contacts of the relay are connected to the frequency measurement signal transmission line. When the coil of the relay KM is closed, the normally closed contact is disconnected and the system issues an alarm.

[0038] A centrifuge operation detection system provided in an embodiment of the present application includes: a relay KM, a temperature sensor and a signal processing module; for a target centrifuge that cannot measure frequency, the target frequency signal line of the target centrifuge is connected to the frequency signal line of other centrifuges that can measure frequency normally through the relay KM; the temperature sensor is installed on the target upper end cover of the target centrifuge, and is used to collect the temperature of the target upper end cover; the signal processing module is connected to the temperature sensor, and is used to receive the temperature data detected by the temperature sensor, and control the on and off of the relay KM according to the temperature data. The embodiment of the present application does not require any modification to the frequency measurement circuit, nor does it require any changes to the monitoring system. It only needs to add the alarm device to the existing frequency measurement circuit, and by detecting the temperature change of the upper end cover of the centrifuge, the operation of the centrifuge with frequency measurement failure can be effectively monitored and the damaged machine can be alarmed to ensure the normal operation of the system; the system can also be used to monitor centrifuges with poor operating conditions, and provide technical reserves for centrifuge operation analysis.

[0039] Based on a centrifuge operation condition detection system provided in the above embodiment, an embodiment of the present application further provides a centrifuge operation condition detection method, which is applied to any one of the centrifuge operation condition detection systems provided in the above embodiment.

[0040] A centrifuge operation condition detection method provided in an embodiment of the present application includes:

[0041] Step S101: the signal processing module acquires temperature data detected by the temperature sensor;

[0042] Step S102: The signal processing module determines whether the temperature data exceeds a preset threshold; if so, executing step S103.

[0043] Step S103: the signal processing module controls the relay KM to be disconnected.

[0044] The centrifuge operation condition detection method provided in the embodiment of the present application does not require any modification to the frequency measurement circuit, nor does it require any changes to the monitoring system. By simply adding the alarm device to the existing frequency measurement circuit, the operation of the centrifuge with frequency measurement failure can be effectively monitored by detecting the temperature change of the upper end cover of the centrifuge, and the faulty machine can be alarmed to ensure the normal operation of the system; the system can also be used to monitor centrifuges with poor operating conditions, providing technical reserves for centrifuge operation condition analysis.

[0045] The present application is described in detail above in conjunction with the accompanying drawings and embodiments, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present application. Any content not described in detail in the present application can adopt the existing technology.

Claims

1. A centrifuge operation condition detection system, characterized in that: The system comprises: a relay KM, a temperature sensor and a signal processing module; For a target centrifuge that cannot measure frequency, the target frequency signal line of the target centrifuge is connected to the frequency signal lines of other centrifuges that can measure frequency normally through the relay KM; The temperature sensor is mounted on the target upper end cover of the target centrifuge and is used to collect the temperature of the target upper end cover; The signal processing module is connected to the temperature sensor, and is used to receive temperature data detected by the temperature sensor, and control the on and off of the relay KM according to the temperature data.

2. The centrifuge operation condition detection system according to claim 1, characterized in that: The signal processing module is specifically used to control the relay KM to disconnect when the temperature data exceeds a preset threshold.

3. The centrifuge operation condition detection system according to claim 2, characterized in that: The signal processing module is also used to display the temperature data.

4. The centrifuge operation condition detection system according to claim 2 or 3, characterized in that: The signal processing module is a single chip microcomputer structure.

5. The centrifuge operation condition detection system according to claim 1, characterized in that: The temperature sensor is a DS18B20 temperature sensor.

6. The centrifuge operation condition detection system according to claim 1, characterized in that: The relay KM is a 5V relay.

7. A method for detecting the operation status of a centrifuge, characterized in that: A centrifuge operation condition detection system applied to any one of claims 1 to 6; the method comprising: The signal processing module acquires the temperature data detected by the temperature sensor; The signal processing module determines whether the temperature data exceeds a preset threshold; if so, the signal processing module controls the relay KM to disconnect.

Images