Test bench for mechanical speed regulator of diesel generator

Abstract

The utility model provides a diesel generator mechanical speed regulator test bench. The diesel generator mechanical speed regulator test bench comprises a mechanical speed regulator, a mechanical speed regulation transmission case, a detection device and an instrument panel. Wherein the mechanical speed regulator is arranged on the mechanical speed regulation transmission case through a base and is controlled to operate through the mechanical speed regulation transmission case; the mechanical speed regulation transmission case is connected with a lower computer device and an electronic speed regulator of the intelligent verification device, and operates based on test signals received from the lower computer device and the electronic speed regulator. The detection equipment is arranged on the mechanical speed regulator, is connected with the lower computer equipment and is used for transmitting detected operation parameters of the mechanical speed regulator to the lower computer equipment; and the instrument panel is arranged behind the mechanical speed regulator, is respectively connected with the mechanical speed regulator and the mechanical speed regulation transmission case, and is used for displaying operation parameters of the mechanical speed regulator. The operation state of the diesel engine speed regulation system can be monitored, the fault judgment and decision time is shortened, the factory return test verification cost of a mechanical speed regulator can be remarkably reduced, and the reliability and usability of the speed regulation system are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power equipment manufacturing technical field, especially a diesel generator mechanical speed regulator test bench. BACKGROUND

[0002] As important safety equipment of nuclear power plant, nuclear power emergency diesel engine is closely related to nuclear safety. In the event of an emergency, emergency diesel generator as emergency power supply can play a role in promoting the normal stop of the reactor and protecting the key equipment from damage, and plays a vital role in ensuring nuclear safety. It has been proved that once the nuclear power plant fails, if the emergency diesel generator cannot start normally and provide high-quality power, the consequences are unpredictable.

[0003] The diesel engine speed regulation system is the most important control system of the nuclear emergency diesel engine. Just like the human brain controls the required action according to the information received from the outside world and according to the needs, the diesel engine controls the start, stable speed and output of the diesel engine to meet the requirements of the high-quality power output, so as to make the generator output the required power.

[0004] Since the diesel engine speed regulation system can only be tested on site to meet the requirements of the diesel engine speed regulation system, the operation cost is high and the risk is great. Once the fault speed regulation system is tested on site, it may cause damage to the diesel engine itself, such as over-speed operation and overload operation. It is necessary to test the speed regulation system in the laboratory or workshop as much as possible to ensure the smooth operation of the diesel engine and improve the availability and reliability of the diesel engine. Utility model content

[0005] The utility model provides a diesel generator mechanical speed regulator test bench, which is used for performance test of the mechanical speed regulator.

[0006] The embodiment of the present application provides a diesel generator mechanical speed regulator test bench, which comprises a mechanical speed regulator, a mechanical speed regulation transmission box for controlling the operation of the mechanical speed regulator, a detection device for detecting the working state parameters of the mechanical speed regulator and an instrument panel for displaying the operation state parameters of the mechanical speed regulator; wherein: the mechanical speed regulator is arranged on the mechanical speed regulation transmission box through a base and is controlled to operate through the mechanical speed regulation transmission box; the mechanical speed regulation transmission box is connected with a lower computer device of an intelligent checking device and an electronic speed regulator respectively and operates based on test signals received from the lower computer device and the electronic speed regulator; the detection device is arranged on the mechanical speed regulator and is connected with the lower computer device and is used for transmitting the detected operation parameters of the mechanical speed regulator to the lower computer device; and the instrument panel is arranged behind the mechanical speed regulator and is connected with the mechanical speed regulator and the mechanical speed regulation transmission box respectively and is used for displaying the operation parameters of the mechanical speed regulator.

[0007] In an embodiment of the present application, the mechanical speed regulation transmission box is internally provided with a controller, a transmission mechanism, a servo motor, an oil pump, an oil pump motor, a filter, a valve group, an oil tank oil circuit, a lubricating pipeline, a heating device, a temperature sensor and a pressure regulating system.

[0008] In an embodiment of the present application, the detection device comprises a speed sensor and an angle sensor arranged on the mechanical speed regulator.

[0009] In an embodiment of the present application, the throttle adjustment output shaft of the mechanical speed regulator is exposed to the outer wall, and the angle sensor is arranged on the throttle adjustment output shaft exposed to the outer wall of the mechanical speed regulator.

[0010] In an embodiment of the present application, the speed sensor is arranged on the corresponding part of the inner wall of the mechanical speed regulation transmission box and the driving shaft speed measurement cam.

[0011] In an embodiment of the present application, the instrument panel is vertically arranged on the mechanical speed regulation transmission box, and the width of the instrument panel matches the width of the mechanical speed regulation transmission box.

[0012] In an embodiment of the present application, the instrument panel comprises a direct current power display table, a speedometer, a temperature table, an oil pressure table and an indicator light.

[0013] In an embodiment of the present application, the actuator of the mechanical speed regulator is connected with the electronic speed regulator and obtains working current from the electronic speed regulator.

[0014] In an embodiment of the present application, the mechanical speed regulation transmission box is provided with universal wheels at the bottom.

[0015] In an embodiment of the present application, a fixing flange device is arranged on the base, and the mechanical speed regulator is fixed to the base through the fixing flange device.

[0016] 1. The present application can comprehensively monitor the operation state of the diesel engine speed regulation system, reduce the fault judgment and decision-making time, reduce the unplanned non-availability time of the nuclear power emergency generator set, and increase the safety and economic benefits of the nuclear power plant.

[0017] 2. The diesel generator mechanical speed regulator test bench provided by the present application can significantly reduce the factory test and verification cost of the mechanical speed regulator, and ensure the reliability and availability of the speed regulation system.

[0018] 3. The present application can train and teach the operators, and not only can realize the detection of the mechanical speed regulator of the diesel engine speed regulation system, but also can achieve the purpose of technical training. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structural principle diagram of the diesel generator mechanical speed regulator test bench according to an embodiment of the present application is shown.

[0020] Figure 2 The connection schematic diagram of the diesel generator mechanical speed regulator test bench, the electronic speed regulator and the intelligent verification device according to an embodiment of the present application is shown.

[0021] ELEMENT NUMBER EXPLANATION

[0022] 110 mechanical speed regulator test bench

[0023] 111 mechanical speed regulator

[0024] 112 mechanical speed regulation transmission box

[0025] 113 detection equipment

[0026] 114 instrument panel

[0027] 120 electronic speed regulation test bench

[0028] 121 electronic speed regulator

[0029] 122 support frame

[0030] 123 auxiliary analysis terminal

[0031] 130 intelligent verification device

[0032] 131 host computer equipment

[0033] 132 lower computer equipment

[0034] The specific embodiments of the present application have been shown by way of example in the above figures, and will be described in greater detail below. These figures and this written description are not intended to limit the scope of the present application in any way, but rather to illustrate various embodiments of the present application to a person of ordinary skill in the art. DETAILED DESCRIPTION

[0035] The advantages and features of the present application will become apparent from specific non-limiting Examples described below. The present application can be embodied in various different forms and should not be construed as limited to the embodiments set forth herein. Embodiments and features of the present application are combinable unless otherwise explicitly stated. The embodiments and features of the present application are combinable unless otherwise explicitly stated.

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are provided for purposes of illustration only and wherein: Figures 1-2 The embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are provided for purposes of illustration only and wherein:

[0037] In the description of the present application, the expressions "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" indicate that the particular feature, structure, material, or characteristic following the expressions are included in at least one embodiment or example of the present application. The appearances of the expressions in the description are not specifically meant to delimit the scope of the present application, but rather they are meant to better describe particular embodiments of the application. Also, the particular features, structures, materials, or characteristics following the expressions of "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" can be combined with one another in any manner, unless the context clearly dictates otherwise.

[0038] Also, the terms "first", "second", etc., are used herein only to describe various embodiments and their features, and do not connote an ordering, unless the context clearly indicates otherwise. Thus, these terms are used in their dictionary senses, and are non-restrictive unless the context clearly indicates otherwise. The term "plurality" means two or more, unless the context clearly indicates otherwise.

[0039] Although the terms first, second, etc. can be used herein to describe various structure characteristics, these structure characteristics should not be limited by these terms. These terms are only used to differentiate one structure characteristic from another. Furthermore, as used in this embodiment, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", as used herein, specify the presence of stated structure characteristics, but do not preclude the presence or addition of one or more other structure characteristics. The terms "or" and "and / or" as used herein are to be interpreted as inclusive, i.e., as meaning either one or any combination of items. Only when a combination of structure characteristics is, in some way, inherently mutually exclusive, will this definition be modified.

[0040] For the purpose of clear explanation of the present application, structures irrelevant to the explanation are omitted, and the same reference numerals are assigned to the same or similar structures throughout the specification.

[0041] In the specification and the like of the present embodiment, when a structure is said to be "connected" to another structure, this includes not only a case where it is "directly connected" but also a case where it is "indirectly connected" with another structure element interposed therebetween. In addition, when a structure is said to "include" a certain constituent element, unless particularly stated otherwise, this does not exclude the presence of other constituent elements, but means that other constituent elements can also be included.

[0042] The technical and scientific terms used herein are used only to refer to specific embodiments, and are not intended to limit the present application. The singular form is used herein, unless the context clearly indicates otherwise, to include the plural form. The meaning of "include" used in the specification is to specify a certain characteristic, a constituent element, and is not to exclude the presence or addition of other characteristics and constituent elements.

[0043] Although not differently defined, technical and scientific terms used herein include the technical terms and scientific terms, and all terms have the same meaning as generally understood by a person skilled in the art to which the present application pertains. The terms defined in a general dictionary are additionally interpreted to have the meaning in accordance with the related technical literature and the currently prompted message, and are not over-interpreted as ideal or very formal meanings unless defined.

[0044] The present embodiment provides a diesel generator mechanical speed regulator test bench for testing the performance of a mechanical speed regulator.

[0045] The principle and implementation of the diesel generator mechanical speed regulator test bench of the present embodiment will be described in detail below, so that those skilled in the art can understand the diesel generator mechanical speed regulator test bench of the present embodiment without creative labor.

[0046] The embodiment provides a diesel generator mechanical speed regulator test bench, Figure 1 A structural principle diagram of a diesel generator mechanical speed regulator test bench is shown as an embodiment of the application. Figure 1 As shown in the figure, in the embodiment, the mechanical speed regulator test bench 110 comprises a mechanical speed regulator 111, a mechanical speed regulation transmission box 112 for controlling the operation of the mechanical speed regulator 111, a detection device 113 for detecting the working state parameters of the mechanical speed regulator 111, and an instrument panel 114 for displaying the operation state parameters of the mechanical speed regulator 111.

[0047] The mechanical speed regulator 111 is arranged on the mechanical speed regulation transmission box 112 through a base, the detection device 113 is arranged on the mechanical speed regulator 111, and the instrument panel 114 is arranged on the base and located at the rear of the mechanical speed regulator 111.

[0048] In an implementation manner of the embodiment, the mechanical speed regulator 111 is arranged on the mechanical speed regulation transmission box 112 through a base and is controlled to operate through the mechanical speed regulation transmission box 112. The base is provided with a fixed flange device, and the mechanical speed regulator 111 is fixed to the base through the fixed flange device.

[0049] In the embodiment, the mechanical speed regulation transmission box 112 is connected with a lower computer device 132 in an intelligent verification device 130 and an electronic speed regulator 121 in an electronic speed regulation test bench 120 respectively, and is operated based on test signals received from the lower computer device 132 and the electronic speed regulator 121; the detection device 113 is arranged on the mechanical speed regulator 111, and the detection device 113 is connected with the lower computer device 132, and is used for transmitting the detected operation parameters of the mechanical speed regulator 111 to the lower computer device 132; the instrument panel 114 is arranged at the rear of the mechanical speed regulator 111, and is connected with the mechanical speed regulator 111 and the mechanical speed regulation transmission box 112 respectively, and is used for displaying the operation parameters of the mechanical speed regulator 111.

[0050] As shown in the figure, Figure 2 In an implementation manner of the embodiment, the mechanical speed regulation transmission box 112 is internally provided with a controller, a transmission mechanism, a servo motor, an oil pump, an oil pump motor, a filter, a valve group, an oil tank oil circuit, a lubricating pipeline, a heating device, a temperature sensor, and a pressure regulating system.

[0051] The controller is the core control unit of the entire mechanical speed regulation transmission box, responsible for coordinating the work of each component. According to the parameters received from the lower computer device 132 in the intelligent verification device 130 and the input signals, the running state of the mechanical speed regulator and the servo motor is accurately controlled, and the transmission speed and direction are accurately adjusted; at the same time, the heating device, the pressure regulating system and the like are intelligently controlled to ensure that the transmission box can stably and efficiently operate under various working conditions. The controller is connected with the servo motor, the oil pump motor, the temperature sensor and the like. By receiving the temperature signal transmitted by the temperature sensor, the controller can control the heating device, the pressure regulating system and the like; at the same time, control instructions are sent to the servo motor to realize the speed and direction control of the transmission mechanism.

[0052] The transmission mechanism transmits the rotary motion of the servo motor after deceleration, torque increase and the like to the output shaft, thereby driving the mechanical speed regulator. Specifically, one end of the transmission mechanism is connected with the servo motor to receive the power transmitted by the servo motor and convert it into the rotary motion of the output shaft of the transmission box; the other end is connected with the output component of the transmission box to output power to the mechanical speed regulator.

[0053] The servo motor accurately controls the speed and direction of the mechanical speed regulator according to the instructions of the controller, and provides appropriate power for the transmission mechanism. Its high-precision control capability enables the transmission box to meet the strict requirements of different working scenes on speed and direction, and ensures the operation precision and stability of the equipment. The servo motor is connected with the controller through a cable to receive the instructions of the controller, and accurately controls the speed and direction of the mechanical speed regulator according to the instructions. Its output shaft is connected with the input end of the transmission mechanism to provide power for the transmission mechanism.

[0054] The oil pump motor is connected with the oil pump to drive the oil pump to operate. The oil pump is connected with the oil tank through the oil suction pipe to suck the lubricating oil in the oil tank, and delivers the lubricating oil with a certain pressure to the lubricating pipeline in the transmission box through the oil outlet pipe. A filter is installed at the oil outlet of the oil pump or the lubricating pipeline, the oil inlet of which is connected with the oil outlet pipe of the oil pump, and the oil outlet is connected with the lubricating pipeline. After the lubricating oil comes out of the oil pump, it is filtered first to remove impurities and particles, and then enters the lubricating pipeline.

[0055] The valve group can accurately control the flow and direction of lubricating oil, adjust the appropriate amount of lubricating oil according to the needs of different parts, and ensure that each part can be fully lubricated; at the same time, it can also play a role in adjusting pressure and maintaining system stability in other oil circuits. Specifically, the valve group is distributed in the lubricating pipeline and other related oil circuits. In the lubricating pipeline, the valve group is used to control the flow and direction of lubricating oil, adjust the appropriate amount of lubricating oil according to the needs of different parts, and ensure that each part can be fully lubricated; in other oil circuits, such as parts related to the oil tank oil circuit, the valve group can be used to control the ventilation of the oil tank and the circulation of the oil, etc., to ensure the stability of the pressure in the oil tank and the normal circulation of the oil.

[0056] The oil tank oil circuit stores lubricating oil, transports lubricating oil to various parts through the oil circuit, and recycles used lubricating oil to realize the recycling of lubricating oil. It can also play a role in heat dissipation and impurity sedimentation, which is beneficial to maintaining the performance of the lubricating oil and the normal operation of the transmission box. Specifically, the oil tank oil circuit includes a plurality of oil return pipes, and the oil tank is connected to each lubricating part of the transmission box through the oil return pipes to form a closed oil circuit circulation system. After being used in each lubricating part, the lubricating oil returns to the oil tank through the oil return pipes, and is treated by sedimentation, heat dissipation, etc. in the oil tank, and then is extracted by the oil pump for recycling.

[0057] The lubricating pipeline accurately transports the filtered and adjusted lubricating oil to each key part in the transmission box, such as gears, bearings, etc. It reduces friction loss, reduces part temperature, prevents part overheating and damage, ensures smooth operation of the transmission box, and improves its working efficiency and service life. From the oil pump driven by the oil pump motor, through the filter, it branches to each part that needs lubrication in the transmission box, such as gear meshing, bearings, etc. The lubricating pipeline is provided with different lubricating pipeline branches and valves according to different lubricating needs to ensure that each part can be supplied with appropriate and stable lubricating oil.

[0058] The heating device is installed inside or near the oil tank and connected to the oil tank through a pipeline. When the ambient temperature is low, the heating device starts to work to heat the lubricating oil in the oil tank, so that the lubricating oil reaches the appropriate working viscosity, ensuring that the transmission box can also operate normally in a low temperature environment.

[0059] The temperature sensor is installed inside the oil tank or at a key position (such as near an important transmission part), and its probe is exposed to the lubricating oil or the environment inside the transmission box, which is used to monitor the temperature of the lubricating oil or the temperature change inside the transmission box in real time. The temperature sensor transmits the detected temperature signal to the controller.

[0060] The pressure regulating system cooperates with the oil pump motor, valve group and the whole lubricating pipeline system, adjusts and controls the pressure at the oil pump outlet or in the lubricating pipeline, ensures stable pressure supply of the lubricating oil under different working conditions and meets the requirements of each lubricating part.

[0061] The internal structure of the mechanical speed regulation transmission box 112 in the embodiment can effectively establish signal transmission between the mechanical speed regulator 111 and the lower computer device 132 in the intelligent verification device 130 and offline control of the mechanical speed regulator 111.

[0062] The mechanical speed regulation transmission box 112 is equipped with universal wheels at the bottom. The mechanical speed regulation transmission box 112 equipped with universal wheels can be easily moved on the ground, without consuming a large amount of manpower and material resources for carrying, thereby being able to quickly adapt to the requirements of new test scenes. Moreover, during the installation process of the mechanical speed regulator test bench 110, the electronic speed regulation test bench 120 and the intelligent verification device 130, the universal wheels can make the mechanical speed regulator test bench 110 flexibly rotate in the horizontal direction, facilitate alignment and installation with the electronic speed regulation test bench 120 and the intelligent verification device 130 and make the connection more smooth.

[0063] Since the mechanical speed regulation transmission box usually has a certain weight, especially some large and heavy transmission boxes. If the mechanical speed regulation transmission box is directly placed on the ground, its weight will act on a relatively small area, which may cause a large pressure on the ground, resulting in damage to the ground. The universal wheels can disperse the weight of the transmission box to multiple wheels, reducing the pressure per unit area of the ground. For example, on the cement ground of some factory buildings, if heavy mechanical speed regulation transmission boxes are placed for a long time, cracks or depressions may appear on the ground. After using the universal wheels, each wheel only bears a part of the weight, greatly reducing the burden on the ground and prolonging the service life of the ground.

[0064] In addition, in some debugging environments, there may be vibration sources on the ground, such as the operation of large machine tools, the passing of transport vehicles, etc. These vibrations will be transmitted to the mechanical speed regulation transmission box through the ground, which will have a certain impact on the internal parts of the mechanical speed regulation transmission box. The universal wheels have a certain shock absorption capacity and can absorb and buffer part of the vibration energy, reducing the impact of vibration on the bottom of the mechanical speed regulation transmission box.

[0065] In the embodiment, an exemplary preferred working parameter of the mechanical speed regulation transmission box 112 is as follows: working voltage: 220VAC, 50Hz; output power: 3.85KW; test speed range: 0-2000RPM; speed measurement accuracy: ±1RPM; oil pressure measurement range and accuracy: 0-600PSI, 1PSI; temperature measurement range and accuracy: 0-120℃, 1℃.

[0066] In an implementation form of the embodiment, the detection device 113 comprises a speed sensor and an angle sensor arranged on the mechanical governor 111. The angle sensor is arranged on the accelerator output shaft exposed to the outer wall of the mechanical governor 111, and the speed sensor is arranged on the corresponding part of the driving shaft speed cam inside the mechanical governor transmission box 112. The speed sensor is fixed on the inner wall of the mechanical governor transmission box 112 and can align the probe of the speed sensor with the speed cam to ensure accurate measurement of the speed of the cam.

[0067] The speed sensor is, but not limited to, an electromagnetic induction speed sensor, an optical speed sensor or a Hall speed sensor. In this embodiment, the speed sensor is taken as an example of an electromagnetic induction speed sensor. When the driving shaft speed cam rotates, the teeth or protrusions on the cam will pass the probe of the sensor one by one. The probe is usually a coil structure. Under the action of the magnetic field, the gap between the teeth or protrusions on the cam and the probe will change, resulting in a change in the magnetic resistance of the magnetic circuit. According to the principle of electromagnetic induction, the change in the magnetic resistance will cause an induced electromotive force in the coil, and the size of the induced electromotive force is proportional to the rotational speed of the cam. By measuring the size and frequency of the induced electromotive force, the rotational speed of the driving shaft speed cam can be calculated.

[0068] In an implementation form of the embodiment, the instrument panel 114 comprises a DC power display table, a speedometer, a temperature table, an oil pressure table and an indicator light. The instrument panel 114 is arranged vertically on the mechanical governor transmission box 112, and the width of the instrument panel 114 matches the width of the mechanical governor transmission box 112.

[0069] In this embodiment, the actuator of the mechanical governor 111 is connected to the electronic governor 121 to obtain working current from the electronic governor 121. That is, the electronic governor 121 is connected to the actuator of the mechanical governor 111 to provide current for the actuator of the mechanical governor 111.

[0070] In an implementation form of the embodiment, as shown in Figure 1 The electronic governor test bench 120 further comprises an auxiliary analysis terminal 123 connected to the electronic governor 121. The auxiliary analysis terminal 123 is provided with preset test software for reading and writing the set parameters in the electronic governor 121 and recording the changes of working parameters of the electronic governor 121.

[0071] For example, the auxiliary analysis terminal 123 is configured with an interface of the diesel engine electronic governor 121 and a LEEC tool software for parameter management, which is, for example, a tool software specially used by the original manufacturer. The LEEC software is installed on an IPC machine or a laptop computer, and is connected to the electronic governor 121 through an RS232 interface, so as to read and write the setting parameters of the electronic governor 121 (black box) and record the working parameter changes of the electronic governor. The LEEC tool software, as the original test tool software, can assist and verify the test results of the electronic governor 121 tested by the intelligent checking device 130.

[0072] Specifically, in the embodiment, the intelligent checking device 130 is arranged on the support frame 122, and is used for intelligently checking the electronic governor 121 and the mechanical governor 111. The intelligent checking device 130 includes an upper computer device 131 and a lower computer device 132 connected to the upper computer, the electronic governor 121, the mechanical governor transmission box 112 and the detection device 113.

[0073] The upper computer device 131 is used for simulating a working mode of the diesel engine, and providing test working parameters for the electronic governor 121 and the mechanical governor 111 based on the working mode of the diesel engine. The lower computer device 132 is connected to the upper computer device 131, the electronic governor 121, the mechanical governor transmission box 112 and the detection device 113, respectively, and is used for sending the test working parameters to the electronic governor 121 and the mechanical governor 111, and collecting working state parameters of the electronic governor 121 and working state parameters of the mechanical governor 111 to the upper computer device 131 in real time. The upper computer device 131 displays and analyzes the working state parameters of the electronic governor 121 and the working state parameters of the mechanical governor 111, so as to check the electronic governor 121 and the mechanical governor 111.

[0074] Specifically, the PLC is used as the lower computer device 132, and is used for completing sampling of original electrical signals of the diesel engine governor, storage unit distribution, A / D conversion and signal filtering, and the like. Data communication is mainly in the Modbus and TCP / IP modes.

[0075] In the embodiment, the PLC of the lower computer device 132 selects performance excellent instrument and power module, uses excellent terminal connectors and wires, and reasonably distributes electrical elements in the main control box, so as to significantly improve the reliability and anti-interference of the lower computer device 132 in operation. When any electrical operation, lightning strike, static electricity and radio transceiver electromagnetic interference are received, no misadjustment, detuning, malfunction, refusal to move and the like occur.

[0076] In this embodiment, the parameters of the PLC of the lower computer device 132 are as follows: 1) main I / O interface: 4x USB2.0, 2xDB-9 COM1 & COM2, RS-232 / 422 / 485, 2xDB-9 COM3 & COM4, RS-232, 1x one-key restore system button; storage: 1xmSATA / 1x SATA; expansion slot: Mini-PCIEx1 on-board SIM card slot; support system: Windows 1032 / 64-bit; 15-inch TFT liquid crystal screen; support touch operation, resolution: 1024*768; support interface: RS232, RJ45; internal storage medium: 128GB SSD; Intel Core I5 series processor, 8GB memory; material: aluminum-magnesium alloy; installation method: VESA100 / panel installation.

[0077] In this embodiment, the upper computer device 131 includes an industrial computer, a touch screen arranged in front of the industrial computer, a plurality of operation buttons or / and operation knobs arranged beside the touch screen and used for controlling the electronic speed regulator 121 and the mechanical speed regulator 111 to perform intelligent verification, and a plurality of plug-in ports arranged behind the industrial computer. The plurality of plug-in ports include a plurality of VGA ports, USB ports, network interfaces, printer interfaces, and waveform recorders.

[0078] That is, in this embodiment, the upper computer device 131 takes the Touch screen LCD as the man-machine interface window, and the touch screen is used for input and output control. The hot-pluggable mobile storage device interface is reserved, and the printer and the waveform recorder are expandable peripherals.

[0079] The industrial computer of the upper computer device 131 adopts an embedded industrial controller IPC, which can realize data function combination, higher cycle operation speed, storage, and graphic display functions. For example, the industrial computer adopts an X86 high-level CPU based on an IPC architecture, which has low power consumption, less heat generation, strong operation capacity, and powerful graphic processing capacity. The main control unit component of the industrial computer adopts an aluminum-magnesium alloy shell, which has fast heat dissipation, dustproof and shock resistance, and a solid shell.

[0080] The upper computer device 131 outputs a continuously changing rotating speed signal to the mechanical speed regulator 111, drives the mechanical speed regulator 111 to operate in a specific rotating speed range, so that the upper computer device 131 can not only acquire the operating state of the mechanical speed regulator 111 in different rotating speeds and acceleration and deceleration processes, and whether there is a jitter or stall phenomenon, but also acquire the change of the output angle of the mechanical speed regulator 111, the state change of the throttle rack, and record the speed curve, the current curve, and the rack curve, and further measure the working state of the mechanical speed regulator 111.

[0081] In summary, the application can comprehensively monitor the running state of the diesel engine speed regulation system, reduce the fault judgment and decision time, reduce the unplanned non-usable time of the nuclear power emergency generator set, and increase the safety benefit and economic benefit of the nuclear power plant; the diesel generator mechanical speed regulator test bench provided by the application can significantly reduce the factory test and verification cost of the mechanical speed regulator, and ensure the reliability and availability of the speed regulation system; through the application, the operation personnel can be trained and taught, which can not only realize the detection of the mechanical speed regulator of the diesel engine speed regulation system, but also achieve the purpose of technical training. Therefore, the application effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0082] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the application should be covered by the claims of the application.

Claims

1. A test bench for a diesel generator mechanical governor, characterized in that: include: The system comprises: a mechanical speed governor, a mechanical speed governor transmission box for controlling the operation of the mechanical speed governor, a detection device for detecting the operating status parameters of the mechanical speed governor, and an instrument panel for displaying the operating status parameters of the mechanical speed governor; wherein: The mechanical speed controller is mounted on the mechanical speed control transmission box via a base and its operation is controlled by the mechanical speed control transmission box. The mechanical speed-regulating transmission box is connected to the lower-level machine device and the electronic speed controller of the intelligent verification device, respectively, and operates based on the test signals received from the lower-level machine device and the electronic speed controller; The detection device is installed on the mechanical speed controller and is connected to the lower-level device to transmit the detected operating parameters of the mechanical speed controller to the lower-level device. The instrument panel is located behind the mechanical speed controller and is connected to both the mechanical speed controller and the mechanical speed control transmission box, and is used to display the operating parameters of the mechanical speed controller.

2. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The mechanical speed control transmission box is equipped with a controller, transmission mechanism, servo motor, oil pump, oil pump motor, filter, valve group, oil tank oil circuit, lubrication pipeline, heating device and temperature sensor, as well as pressure regulation system.

3. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The detection equipment includes a speed sensor and an angle sensor mounted on the mechanical speed controller.

4. The diesel generator mechanical governor test bench according to claim 3, characterized in that, The throttle adjustment output shaft of the mechanical governor is exposed on the outer wall, and the angle sensor is mounted on the throttle adjustment output shaft exposed on the outer wall of the mechanical governor.

5. The diesel generator mechanical governor test bench according to claim 4, characterized in that, The speed sensor is installed on the inner wall of the mechanical speed control transmission box at the position corresponding to the speed measuring cam of the drive shaft.

6. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The instrument panel is vertically mounted on the mechanical speed control transmission box, and the width of the instrument panel matches the width of the mechanical speed control transmission box.

7. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The instrument panel includes a DC power display, a tachometer, a temperature gauge, an oil pressure gauge, and indicator lights.

8. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The actuator of the mechanical speed controller is connected to the electronic speed controller and obtains the operating current from the electronic speed controller.

9. The diesel generator mechanical governor test bench according to claim 1, characterized in that, The bottom of the mechanical speed-regulating transmission box is equipped with casters.

10. The diesel generator mechanical governor test bench according to claim 1, characterized in that, A fixing flange device is provided on the base, and the mechanical speed controller is fixed to the base through the fixing flange device.

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