Intelligent energy recovery system of centrifugal machine

Abstract

The invention provides an intelligent energy recovery system of a centrifugal machine, which relates to the technical field of energy recovery of centrifugal machines and comprises an energy conversion module, an energy storage module, an energy management module and a control module. The energy conversion module comprises a frequency converter, a reversible motor and a rectifier, the frequency converter is electrically connected with the reversible motor, and the rectifier is electrically connected with the reversible motor. The energy storage module includes a first battery electrically connected to the rectifier. The energy management module comprises an energy monitor, the energy monitor is electrically connected with the reversible motor, and the operation states of the reversible motor comprise the deceleration state, the starting state and the acceleration state. The control module is electrically connected with the frequency converter and the energy monitor. The intelligent energy recovery system for the centrifugal machine can effectively recover electric energy generated when the centrifugal machine decelerates, the motor of the centrifugal machine can be in a better working temperature environment to guarantee the service life of the motor while energy is saved, and the environmental protection performance of the centrifugal machine can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuge energy recovery, and in particular to an intelligent energy recovery system for a centrifuge. Background Art

[0002] A centrifuge is an experimental instrument that uses centrifugal force to separate different components in a mixture. It is widely used in chemical industry, biotechnology, medicine, food, environmental protection and other fields. The working principle of the centrifuge is based on Stokes' law, that is, the sedimentation speed of particles in a fluid is proportional to the square of its radius, density difference and gravity acceleration, and inversely proportional to the viscosity of the fluid. In a centrifugal field, due to the action of centrifugal force, the sedimentation speed will be greatly increased, thereby achieving rapid separation.

[0003] However, in the existing related technologies, there is no technical solution for energy recovery of centrifuges, which leads to the following technical problems:

[0004] First, the energy utilization rate of the centrifuge is low, which easily leads to energy waste and poor environmental performance.

[0005] Second, the electric energy generated by the centrifuge during deceleration is generally consumed in the form of energy-consuming resistors, and this energy is dissipated in the form of heat, which not only wastes energy, but also easily causes the centrifuge motor to be in a high operating temperature environment, that is, the working environment of the centrifuge motor is poor, which easily affects its service life. Summary of the invention

[0006] In order to solve the technical problems in the related art, the present invention provides a centrifuge intelligent energy recovery system. The centrifuge intelligent energy recovery system of the present invention can not only effectively recover the electric energy generated by the centrifuge during deceleration, and prevent the electric energy from being dissipated in the form of heat, so that the motor of the centrifuge can be kept in a better working temperature environment while saving energy, thereby ensuring its service life, but also effectively improve the energy utilization rate of the centrifuge, and can improve the environmental performance of the centrifuge while avoiding energy waste.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] Centrifuge intelligent energy recovery system, including:

[0009] An energy conversion module, comprising a frequency converter, a reversible motor and a rectifier, wherein the frequency converter is electrically connected to the reversible motor to control the state of the reversible motor so that the reversible motor can switch between a motor mode and a generator mode, the reversible motor is used to be connected to a drum of a centrifuge, and the rectifier is electrically connected to the reversible motor to rectify the current generated by the reversible motor in the generator mode into direct current;

[0010] An energy storage module, comprising a first storage battery, the first storage battery being electrically connected to the rectifier, and the first storage battery being used to store direct current transmitted by the rectifier;

[0011] An energy management module, comprising an energy monitor, the energy monitor being electrically connected to the reversible motor to obtain the operating state of the reversible motor, wherein the operating state of the reversible motor includes a deceleration state, a start-up state, and an acceleration state;

[0012] A control module, electrically connected to the frequency converter and the energy monitor respectively;

[0013] The centrifuge intelligent energy recovery system comprises the following execution steps:

[0014] Step S1: The energy monitor obtains the operating state of the reversible motor and transmits the operating state information of the reversible motor to the control module;

[0015] Step S2-1: When the reversible motor is in a deceleration state, the control module sends a first mode control signal to the inverter so that the reversible motor switches to a generator mode. At the same time, the AC power generated by the reversible motor is rectified into DC power by a rectifier and stored in the first battery.

[0016] Optionally, the energy monitor is electrically connected to the first storage battery to obtain energy storage conditions of the first storage battery;

[0017] The energy management module further includes an inverter, which is electrically connected to the first storage battery and the reversible motor respectively, so as to convert the direct current stored in the first storage battery into alternating current and transmit it to the reversible motor;

[0018] The centrifuge intelligent energy recovery system also includes the following execution steps:

[0019] Step S2-2: When the reversible motor is in the starting and accelerating state, and the energy storage ratio of the first battery is greater than or equal to the first threshold value, the control module sends a first mode control signal to the inverter to switch the reversible motor to the motor mode, and the control module sends a conversion control signal to the inverter so that the direct current stored in the first battery is converted into alternating current by the inverter and transmitted to the reversible motor.

[0020] Optionally, when the reversible motor is in the starting and acceleration state, when the energy storage ratio of the first battery is less than a first threshold, the control module sends a second mode control signal to the inverter to switch the reversible motor to the motor mode and enable the reversible motor to obtain electrical energy from an external power supply.

[0021] Optionally, the energy storage module further includes a DC / DC converter, and the DC / DC converter is electrically connected to the first storage battery to adjust the external output voltage and current of the first storage battery.

[0022] Optionally, the energy storage module further includes a second storage battery, wherein the second storage battery is electrically connected to the first storage battery;

[0023] The centrifuge intelligent energy recovery system also includes the following execution steps:

[0024] Step S3: When the energy storage ratio of the first storage battery is greater than or equal to a second threshold, the first storage battery supplies power to the second storage battery until the energy storage ratio of the first storage battery is less than the second threshold.

[0025] Optionally, the centrifuge intelligent energy recovery system also includes a display device, which is electrically connected to the energy monitor and the control module respectively, and is used to display the operating status of the reversible motor and the energy storage status of the first battery.

[0026] Optionally, the centrifuge intelligent energy recovery system further includes a safety protection module, which includes a current sensor, a temperature sensor and an overload protection relay, wherein the current sensor is installed on the power line of the reversible motor to monitor the operating current of the reversible motor in real time, the temperature sensor is installed on the reversible motor to monitor the operating temperature of the reversible motor in real time, and the overload protection relay is installed in the upstream circuit of the reversible motor, and the current sensor, the temperature sensor and the overload protection relay are electrically connected to the control module respectively;

[0027] The centrifuge intelligent energy recovery system also includes the following execution steps:

[0028] Step S4: When the operating current of the reversible motor is greater than or equal to a set threshold, or when the operating temperature of the reversible motor is greater than or equal to a set threshold, the control module sends a cut-off control signal to the overload protection relay, and the overload protection relay cuts off the power supply of the reversible motor.

[0029] Optionally, the safety protection module further includes a data recorder, which is electrically connected to the control module and is used to record the real-time operating temperature and operating current of the reversible motor, and to cut off the control signal.

[0030] Beneficial effects:

[0031] 1. Through the above technical solution, first, through the centrifuge intelligent energy recovery system thus set, the computer storage generated by the centrifuge during deceleration can be rectified by the rectifier and stored in the first battery in the form of direct current. In this way, not only can the electric energy generated by the centrifuge during deceleration be effectively recovered, but also this part of the electric energy can be prevented from being dissipated in the form of heat, so that while saving energy, the motor of the centrifuge can be placed in a better working temperature environment, thereby ensuring its service life.

[0032] Second, the electric energy generated by the centrifuge during deceleration is recovered by the first storage battery for secondary utilization (supply to other equipment or devices, or, as described below, to the motor of the centrifuge). In this way, the energy utilization rate of the centrifuge can be effectively improved, and the environmental performance of the centrifuge can be improved while avoiding energy waste.

[0033] 2. Other beneficial effects or advantages of the present invention will be described in detail in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] in:

[0036] Figure 1 is a schematic diagram of the arrangement of a centrifuge intelligent energy recovery system provided by an exemplary embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the execution steps of a centrifuge intelligent energy recovery system provided by an exemplary embodiment of the present invention.

[0038] Description of the reference numerals in the accompanying drawings:

[0039] 100-intelligent energy recovery system of centrifuge; 200-drum; 1-energy conversion module; 11-frequency converter; 12-reversible motor; 13-rectifier; 2-energy storage module; 21-first battery; 22-DC / DC converter; 23-second battery; 3-energy management module; 31-energy monitor; 32-inverter; 4-control module; 5-display device; 6-safety protection module; 61-current sensor; 62-temperature sensor; 63-overload protection relay; 64-data recorder. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units that are not listed, or optionally includes other steps or units that are inherent to these processes, methods, products or devices. It should also be noted that in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or design. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] like Figure 1 to Figure 2As shown, this embodiment provides a centrifuge intelligent energy recovery system 100, including an energy conversion module 1, an energy storage module 2, an energy management module 3 and a control module 4. The energy conversion module 1 includes a frequency converter 11, a reversible motor 12 and a rectifier 13. The frequency converter 11 is electrically connected to the reversible motor 12 to control the state of the reversible motor 12 so that the reversible motor 12 can switch between the motor mode and the generator mode. The reversible motor 12 is used to be connected to the drum 200 of the centrifuge. The rectifier 13 is electrically connected to the reversible motor 12 to rectify the current generated by the reversible motor 12 in the generator mode into direct current. The energy storage module 2 includes a first battery 21, which is electrically connected to the rectifier 13, and the first battery 21 is used to store the direct current transmitted by the rectifier 13. The energy management module 3 includes an energy monitor 31, which is electrically connected to the reversible motor 12 to obtain the operating state of the reversible motor 12, wherein the operating state of the reversible motor 12 includes a deceleration state, a start-up state, and an acceleration state. The control module 4 is electrically connected to the frequency converter 11 and the energy monitor 31, respectively.

[0046] The centrifuge intelligent energy recovery system 100 includes the following execution steps:

[0047] Step S1: the energy monitor 31 obtains the operating state of the reversible motor 12 and transmits the operating state information of the reversible motor 12 to the control module 4;

[0048] Step S2-1: When the reversible motor 12 is in a deceleration state, the control module 4 sends a first mode control signal to the inverter 11 to switch the reversible motor 12 to a generator mode. At the same time, the AC power generated by the reversible motor 12 is rectified into DC power by the rectifier 13 and stored in the first battery 21.

[0049] Through the above technical solution, first, through the centrifuge intelligent energy recovery system 100 configured in this way, the computer storage generated by the centrifuge during deceleration can be rectified by the rectifier 13 and stored in the first battery 21 in the form of direct current. In this way, not only can the electric energy generated by the centrifuge during deceleration be effectively recovered, but also this part of the electric energy can be prevented from being dissipated in the form of heat, so that while saving energy, the motor of the centrifuge can be placed in a better working temperature environment, thereby ensuring its service life.

[0050] Second, the electric energy generated by the centrifuge during deceleration is recovered by the first storage battery 21 for secondary utilization (supply to other equipment or devices, or, as described below, to the motor of the centrifuge). In this way, the energy utilization rate of the centrifuge can be effectively improved, and the environmental performance of the centrifuge can be improved while avoiding energy waste.

[0051] In one embodiment of the present invention, Figure 1 As shown, the energy monitor 31 of the present invention can also be electrically connected to the first battery 21 to obtain the energy storage status of the first battery 21; at the same time, the energy management module 3 of the present invention can also include an inverter 32, which is electrically connected to the first battery 21 and the reversible motor 12 respectively, so as to convert the direct current stored in the first battery 21 into alternating current and transmit it to the reversible motor 12.

[0052] The centrifuge intelligent energy recovery system 100 also includes the following execution steps:

[0053] Step S2-2: When the reversible motor 12 is in the starting and accelerating state, and the energy storage ratio of the first battery 21 is greater than or equal to the first threshold value, the control module 4 sends a first mode control signal to the inverter 11 to switch the reversible motor 12 to the motor mode, and the control module 4 sends a conversion control signal to the inverter 32 so that the DC power stored in the first battery 21 is converted into AC power by the inverter 32 and transmitted to the reversible motor 12.

[0054] In this way, through this technical solution, the electric energy stored in the first battery 21 can be converted into driving alternating current for the reversible motor 12 through the inverter 32, so that when the reversible motor 12 is in the starting and accelerating state, the reversible motor 12 can be provided with driving electric energy, thereby effectively reducing energy consumption and further improving the energy utilization rate and environmental protection performance of the centrifuge.

[0055] In this embodiment, it can be understood that since the reversible motor 12 requires a large amount of energy in the startup and acceleration states, the present invention sets a first threshold value. The energy stored in the first battery 21 will not be used until the energy storage ratio of the first battery 21 reaches or exceeds the first threshold value. In this way, the energy stored in the first battery 21 is sufficient to meet the power needs of the centrifuge in the startup and acceleration states, and avoids obtaining power from an external power supply. Compared with the solution in which the first battery 21 supplies part of the power and the external power supply supplies the remaining power, this embodiment can effectively improve the operating stability of the centrifuge.

[0056] In one embodiment of the present invention, when the reversible motor 12 of the present invention is in the starting and accelerating state, when the energy storage ratio of the first battery 21 is less than the first threshold value, the control module 4 sends a second mode control signal to the inverter 11 to switch the reversible motor 12 to the motor mode, and enable the reversible motor 12 to obtain electrical energy from an external power supply.

[0057] In this way, when the energy storage ratio of the first battery 21 does not reach the first threshold value, the reversible motor 12 is in the motor mode and obtains electric energy directly from the external power supply to meet the energy needs of the centrifuge during startup and acceleration. Compared with the solution in which the first battery 21 supplies part of the electric energy and the external power supply supplies the remaining electric energy, this implementation can effectively improve the operating stability of the centrifuge.

[0058] In the present invention, it can be understood that the value of the first threshold value can be selected according to the specific models and parameters of the first battery 21 and the reversible motor 12, and the present invention does not specifically limit this.

[0059] In one embodiment of the present invention, Figure 1 As shown, the energy storage module 2 of the present invention may further include a DC / DC converter 22 , and the DC / DC converter 22 is electrically connected to the first storage battery 21 to adjust the external output voltage and current of the first storage battery 21 .

[0060] In this way, through the DC / DC converter 22 configured in this way, the voltage and current output by the first battery 21 can be effectively adjusted, so that the first battery 21 can reliably adapt to the voltage and current requirements of the reversible motor 12, thereby improving the operational adaptability and reliability of the centrifuge intelligent energy recovery system 100 of the present invention.

[0061] In one embodiment of the present invention, Figure 1 As shown, the energy storage module 2 of the present invention may further include a second battery 23, and the second battery 23 is electrically connected to the first battery 21. The centrifuge intelligent energy recovery system 100 of the present invention may further include the following execution steps: Step S3: When the energy storage ratio of the first battery 21 is greater than or equal to the second threshold, the first battery 21 supplies power to the second battery 23 until the energy storage ratio of the first battery 21 is less than the second threshold.

[0062] In this way, when the energy storage ratio of the first battery 21 reaches or exceeds the second threshold value, the electric energy in the first battery 21 can be transferred to the second battery 23 to avoid overcharging of the first battery 21, thereby effectively improving the use safety and operation reliability of the first battery 21, and further effectively improving the use safety and operation reliability of the centrifuge intelligent energy recovery system 100 of the present invention.

[0063] In one embodiment of the present invention, Figure 1 As shown, the centrifuge intelligent energy recovery system 100 of the present invention may also include a display device 5, which is electrically connected to the energy monitor 31 and the control module 4 respectively, and is used to display the operating status of the reversible motor 12 and the energy storage status of the first battery 21.

[0064] In this way, through the display device 5 configured in this way, the relevant technical personnel can quickly and intuitively understand the operating status of the reversible motor 12 and the energy storage status of the first battery 21 through the display status, which is convenient for the relevant technical personnel to have an intuitive and rapid grasp of the operating status and related data of the entire centrifuge intelligent energy recovery system 100.

[0065] In one embodiment of the present invention, Figure 1 As shown, the centrifuge intelligent energy recovery system 100 of the present invention may also include a safety protection module 6, which includes a current sensor 61, a temperature sensor 62 and an overload protection relay 63. The current sensor 61 is installed on the power line of the reversible motor 12 for real-time monitoring of the operating current of the reversible motor 12, the temperature sensor 62 is installed on the reversible motor 12 for real-time monitoring of the operating temperature of the reversible motor 12, and the overload protection relay 63 is installed in the upstream circuit of the reversible motor 12. The current sensor 61, the temperature sensor 62 and the overload protection relay 63 are electrically connected to the control module 4 respectively.

[0066] The centrifuge intelligent energy recovery system 100 also includes the following execution steps: Step S4: When the operating current of the reversible motor 12 is greater than or equal to the set threshold, or when the operating temperature of the reversible motor 12 is greater than or equal to the set threshold, the control module 4 sends a cut-off control signal to the overload protection relay 63, and the overload protection relay 63 cuts off the power supply of the reversible motor 12.

[0067] In this way, when the reversible motor 12 is in an operating temperature that is too high or an operating current that is too high, the safety protection module 6 that is set can cut off the power supply of the reversible motor 12 in time, thereby ensuring the operating safety of the centrifuge braking energy recovery process, reducing potential safety risks, and ensuring the safety of operators and equipment.

[0068] At the same time, the provided safety protection module 6 can form a reliable and safe linkage with the energy conversion module 1, the energy storage module 2 and the energy management module 3, and can effectively form a coordinated linkage safety protection effect.

[0069] In one embodiment of the present invention, Figure 1 As shown, the safety protection module 6 of the present invention may also include a data recorder 64, which is electrically connected to the control module 4 and is used to record the real-time operating temperature and operating current of the reversible motor 12, and to cut off the control signal.

[0070] In this way, the data recorder 64 can record the real-time operating temperature, operating current and cut-off control signal of the reversible motor 12 and facilitate retrieval, thereby making it convenient for relevant operators to carry out targeted optimization and monitoring of the entire centrifuge intelligent energy recovery system 100 based on the data recorded in the data recorder 64.

[0071] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Centrifuge intelligent energy recovery system, characterized in that: include: An energy conversion module (1) comprises a frequency converter (11), a reversible motor (12) and a rectifier (13), wherein the frequency converter (11) is electrically connected to the reversible motor (12) for controlling the state of the reversible motor (12) so that the reversible motor (12) can switch between a motor mode and a generator mode, the reversible motor (12) is connected to a rotating drum (200) of a centrifuge, and the rectifier (13) is electrically connected to the reversible motor (12) for rectifying the current generated by the reversible motor (12) in the generator mode into direct current; An energy storage module (2) comprising a first storage battery (21), wherein the first storage battery (21) is electrically connected to the rectifier (13), and the first storage battery (21) is used to store direct current transmitted by the rectifier (13); An energy management module (3) comprises an energy monitor (31), wherein the energy monitor (31) is electrically connected to the reversible motor (12) for obtaining the operating state of the reversible motor (12), wherein the operating state of the reversible motor (12) comprises a deceleration state, a start-up state and an acceleration state; A control module (4) electrically connected to the frequency converter (11) and the energy monitor (31) respectively; The centrifuge intelligent energy recovery system comprises the following execution steps: Step S1: the energy monitor (31) acquires the operating state of the reversible motor (12), and transmits the operating state information of the reversible motor (12) to the control module (4); Step S2-1: When the reversible motor (12) is in a deceleration state, the control module (4) sends a first mode control signal to the frequency converter (11) so that the reversible motor (12) switches to a generator mode. At the same time, the alternating current generated by the reversible motor (12) is rectified into direct current by the rectifier (13) and then stored in the first storage battery (21).

2. The centrifuge intelligent energy recovery system according to claim 1, characterized in that: The energy monitor (31) is electrically connected to the first storage battery (21) to obtain energy storage conditions of the first storage battery (21); The energy management module (3) further comprises an inverter (32), wherein the inverter (32) is electrically connected to the first storage battery (21) and the reversible motor (12) respectively, so as to convert the direct current stored in the first storage battery (21) into alternating current and transmit the alternating current to the reversible motor (12); The centrifuge intelligent energy recovery system also includes the following execution steps: Step S2-2: When the reversible motor (12) is in the starting and accelerating state, and the energy storage ratio of the first storage battery (21) is greater than or equal to a first threshold value, the control module (4) sends a first mode control signal to the frequency converter (11) so that the reversible motor (12) switches to the motor mode, and the control module (4) sends a conversion control signal to the inverter (32) so that the direct current stored in the first storage battery (21) is converted into alternating current by the inverter (32) and transmitted to the reversible motor (12).

3. The centrifuge intelligent energy recovery system according to claim 2, characterized in that: When the reversible motor (12) is in a starting and accelerating state, and when the energy storage ratio of the first storage battery (21) is less than a first threshold value, the control module (4) sends a second mode control signal to the frequency converter (11) so that the reversible motor (12) switches to a motor mode, and enables the reversible motor (12) to obtain electric energy from an external power supply.

4. The centrifuge intelligent energy recovery system according to claim 1, characterized in that: The energy storage module (2) further comprises a DC / DC converter (22), wherein the DC / DC converter (22) is electrically connected to the first storage battery (21) and is used to adjust the external output voltage and current of the first storage battery (21).

5. The centrifuge intelligent energy recovery system according to claim 1, characterized in that: The energy storage module (2) further comprises a second storage battery (23), wherein the second storage battery (23) is electrically connected to the first storage battery (21); The centrifuge intelligent energy recovery system also includes the following execution steps: Step S3: When the energy storage ratio of the first storage battery (21) is greater than or equal to a second threshold, the first storage battery (21) supplies power to the second storage battery (23) until the energy storage ratio of the first storage battery (21) is less than the second threshold.

6. The centrifuge intelligent energy recovery system according to claim 1, characterized in that: The centrifuge intelligent energy recovery system further comprises a display device (5), wherein the display device (5) is electrically connected to the energy monitor (31) and the control module (4) respectively, and the display device (5) is used to display the operating state of the reversible motor (12) and the energy storage status of the first storage battery (21).

7. The centrifuge intelligent energy recovery system according to claim 1, characterized in that: The centrifuge intelligent energy recovery system further comprises a safety protection module (6), wherein the safety protection module (6) comprises a current sensor (61), a temperature sensor (62) and an overload protection relay (63), wherein the current sensor (61) is installed on the power line of the reversible motor (12) for real-time monitoring of the operating current of the reversible motor (12), the temperature sensor (62) is installed on the reversible motor (12) for real-time monitoring of the operating temperature of the reversible motor (12), and the overload protection relay (63) is installed in an upstream circuit of the reversible motor (12), and the current sensor (61), the temperature sensor (62) and the overload protection relay (63) are respectively electrically connected to the control module (4); The centrifuge intelligent energy recovery system also includes the following execution steps: Step S4: When the operating current of the reversible motor (12) is greater than or equal to a set threshold, or when the operating temperature of the reversible motor (12) is greater than or equal to a set threshold, the control module (4) sends a cut-off control signal to the overload protection relay (63), and the overload protection relay (63) cuts off the power supply of the reversible motor (12).

8. The centrifuge intelligent energy recovery system according to claim 7, characterized in that: The safety protection module (6) further comprises a data recorder (64), wherein the data recorder (64) is electrically connected to the control module (4), and the data recorder (64) is used to record the real-time operating temperature and operating current of the reversible motor (12), and to cut off the control signal.

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