CN210536539U - Air cooling intelligent control system for large motor - Google Patents
Air cooling intelligent control system for large motor Download PDFInfo
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- CN210536539U CN210536539U CN201922062146.XU CN201922062146U CN210536539U CN 210536539 U CN210536539 U CN 210536539U CN 201922062146 U CN201922062146 U CN 201922062146U CN 210536539 U CN210536539 U CN 210536539U
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Abstract
The utility model discloses an air-cooled intelligent control system of a large-scale motor, which comprises a main control circuit, a frequency conversion circuit, a plurality of electric valves, an inductor and a motor circuit, wherein the frequency conversion circuit, the plurality of electric valves and the inductor are connected with the main control circuit; the wireless remote control circuit and the control fan circuit are respectively connected to the frequency conversion circuit; the sensor comprises a wind pressure sensor and a wind sensor; the motor circuit comprises a plurality of telescopic motors and a plurality of rotating motors, and the telescopic motors and the rotating motors are connected with the wireless remote control circuit through a travel switch SE and an alternating current contactor KM; the electric valves are connected with the main control circuit through the intermediate relay KA. The utility model provides an air-cooled intelligent control system of large-scale motor designs scientific and reasonable, and operating personnel uses the remote controller, and the control tuber pipe removes the top by the examination motor, and the scene only needs 1 operative employee, can accomplish with the equipment butt joint by examination motor, has saved 60% than originally in time.
Description
Technical Field
The utility model relates to an industry cooling technology field, concretely relates to air-cooled intelligence control system of large-scale motor.
Background
The existing various alternating current transmission motor train units, locomotives, urban rail vehicles and the like need to be provided with a matched air volume control system for a traction system joint debugging test, a performance test and a research test of a traction converter, a traction motor and a control device.
However, at present, the cooling of the motor is monitored and controlled, and the fan is tested and debugged. There are problems in that: on the one hand the operator cannot move the position of the air duct and on the other hand the reliability of the air cooling system is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-scale motor forced air cooling intelligence control system that high efficiency and reliability are high.
In order to overcome the defects in the prior art, the utility model adopts the following technical scheme:
an intelligent air-cooling control system for a large motor comprises a main control circuit (1), a frequency conversion circuit (2) connected with the main control circuit (1), a plurality of electric valves (3), an inductor (4) and a motor circuit (5); the main control circuit (1) is provided with a wireless remote control circuit (1a) and a control fan circuit (1b), and the wireless remote control circuit (1a) and the control fan circuit (1b) are respectively connected to the frequency conversion circuit (2); the inductor (4) comprises a wind pressure sensor (4a) and a wind quantity sensor (4 b); the motor circuit (5) comprises a plurality of telescopic motors and a plurality of rotating motors, and the telescopic motors and the rotating motors are connected with the wireless remote control circuit (1a) through a travel switch SE and an alternating current contactor KM; the electric valves (3) are connected with the main control circuit (1) through an intermediate relay KA.
Further, the wireless remote control circuit (1a) uses the communication terminal F21-E as a circuit communication carrier.
Furthermore, an RTD expansion module and an AI _ AO expansion module are also arranged in the frequency conversion circuit (2).
Furthermore, the frequency conversion circuit (2) is provided with four ABB series 55KW frequency converters.
Furthermore, 4 telescopic motors and 4 rotating motors are arranged in the motor circuit (5), forward and reverse rotation of a common asynchronous motor is controlled, and a travel switch SE is located in the travel of the telescopic motors and the rotating motors.
Furthermore, a surge protector U1 and a centrifugal fan cooling fan M are further arranged on the frequency conversion circuit (2), the surge protector U1 is connected to the frequency conversion circuit (2) through a breaker QF3, and the centrifugal fan cooling fan M is connected to the frequency conversion circuit (2) through an alternating current contactor and a breaker QF 6.
Further, the main control circuit (1) is connected with an upper computer (1c) through an Ethernet.
The utility model provides a large-scale motor forced air cooling intelligence control system design scientific and reasonable before not reforming transform: the position of the air pipe cannot be moved by an operator, so that the operator must place the motor at a specified position, the labor cost is increased, and the production efficiency is reduced. After transformation: an operator uses the remote controller to control the air pipe to move above the tested motor, only 1 operator is needed on site to complete the assembly and butt joint with the tested motor, and the time is saved by 60 percent compared with the original time.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive exercise according to the drawings:
fig. 1 is a schematic view of an embodiment of an air-cooled intelligent control system for a large-scale motor according to the present invention;
FIG. 2 is a rear view schematic diagram of a main control circuit of the large-scale motor air-cooling intelligent control system;
FIG. 3 is a schematic diagram of the control of one group of telescopic motors in the motor circuit of the large motor air-cooling intelligent control system;
FIG. 4 is a schematic front view of a main control circuit of the air-cooled intelligent control system of the large-scale motor;
FIG. 5 is a schematic diagram of a DI expansion module of the main control circuit of the large motor air-cooled intelligent control system;
FIG. 6 is a schematic diagram of a wired communication template of the large motor air-cooled intelligent control system;
FIG. 7 is a schematic diagram of a frequency converter of the air-cooled intelligent control system of the large-scale motor;
FIG. 8 is a schematic diagram of the control of the frequency conversion circuit of the air-cooled intelligent control system of the large-scale motor;
FIG. 9 is a schematic diagram of an AI _ AO expansion module of a frequency conversion circuit of the air-cooled intelligent control system of the large-scale motor;
fig. 10 is a schematic diagram of a main circuit of a frequency converter of the air-cooling intelligent control system of the large-scale motor.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, and the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
As shown in fig. 1 to 10, an air-cooled intelligent control system for a large-scale motor comprises a main control circuit 1, a frequency conversion circuit 2 connected with the main control circuit 1, a plurality of electric valves 3, an inductor 4 and a motor circuit 5; the main control circuit 1 is provided with a wireless remote control circuit 1a and a control fan circuit 1b, and the wireless remote control circuit 1a and the control fan circuit 1b are respectively connected to the frequency conversion circuit 2; the inductor 4 comprises a wind pressure sensor 4a and a wind quantity sensor 4 b; the motor circuit 5 comprises a plurality of telescopic motors and a plurality of rotating motors, and the telescopic motors and the rotating motors are connected with the wireless remote control circuit 1a through a travel switch SE and an alternating current contactor KM; the electric valves 3 are connected with the main control circuit 1 through an intermediate relay KA.
Specifically, the motor circuit 5 is provided with 4 telescopic motors and 4 rotating motors, the normal and reverse rotation of the common asynchronous motor is controlled, and the travel switch SE is positioned in the travel of the telescopic motors and the rotating motors
To be precise, in order to conveniently arrange the circuit into the control electric cabinet, the main control circuit 1 and the frequency conversion circuit 2 are arranged in front and back, and the front view and the back view of the character eyes are displayed in the attached drawings. Describing one motor circuit 5 in detail, the three-phase power of the main control circuit 1 firstly passes through-KM 1/3.3E, then a breaker QF1 and a breaker QF2 are respectively connected to-KM 1/3.3E, the breaker QF1 is connected with a telescopic motor through-KM 1/3.4E and-KM 2/3.5E, wherein-KM 2/3.5E is connected to two ends of-KM 1/3.4E in parallel; the breaker QF2 is connected to the rotating motor through-KM 3/3.5E and-KM 4/3.6E, as are other telescoping motor and rotating motor control principles. The main control circuit 1 is connected with the frequency conversion circuit 2 through a breaker-QFA 1, and the main control circuit 1 is also provided with a heat radiation fan circuit of a cabinet (as shown in figure 2); the main control circuit 1 is further provided with a switch connection line, a human-computer interface line, an atmospheric pressure transducer, and the like, as shown in fig. 4.
In particular, the wireless remote control circuit 1a uses the communication terminals F21-E as circuit communication carriers.
Specifically, the frequency conversion circuit 2 is also provided with an RTD expansion module and an AI _ AO expansion module, wherein the RTD expansion module is Siemens 6ES7231-5PF32-0XB0 in model number, and the temperature of a fan in the system, such as a winding, a bearing and the like, is monitored; the main control circuit 1 is also provided with an AI extension module and a DI extension module (as shown in fig. 5), the AI extension module is connected with the inductor, and the model of the AI extension module of the main control circuit 1 is siemens 6ES7231-4HF32-0XB 0.
Specifically, the frequency conversion circuit 2 is provided with four ABB series 55KW frequency converters (a controller 6ES7214-1HG40-0XB0CPU 1214C DC/DC/RLY S7-1200), the model of which is ACS550-01-125A-4, specifically shown in FIG. 7.
Specifically, a surge protector U1 and a centrifugal fan M are further disposed on the inverter circuit 2, the surge protector U1 is connected to the inverter circuit 2 through a breaker QF3, and the centrifugal fan M is connected to the inverter circuit 2 through an ac contactor and a breaker QF6, as shown in fig. 10.
Specifically, the main control circuit 1 is connected to the upper computer 1c through an ethernet.
In summary, the main control circuit 1 (front view) mainly controls the electromagnetic valve, the air volume sensor and the air pressure sensor; the main control circuit 1 (rear view) mainly controls the compression motor and the rotating motor, and also receives the instruction of the wireless remote control circuit 1a to control the compression motor and the rotating motor. The frequency conversion circuit 2 mainly monitors the centrifugal fan.
The electrical cabinet is divided into two parts. 1: control cabinet (AC220V), 2: frequency conversion cabinet (AC 380V).
All sensor cables enter the control cabinet, are in communication connection with the frequency conversion cabinet through Siemens S7 protocol communication and are realized by adopting a wired communication RS485 communication template, as shown in figure 6. The inside of the frequency conversion cabinet is a high-power control object, and four ABB series 55KW frequency converters are arranged inside the frequency conversion cabinet. The total number of the telescopic rotating motors is 8, and the forward and reverse rotation of the common asynchronous motor is controlled.
A control cabinet: the control cabinet total power supply is AC 220V. The Siemens 1200 series PLC is used as a controller, a Siemens S7 protocol is adopted between the control cabinet and the frequency conversion cabinet for data transmission, and the control cabinet PLC is used as a server and is connected with an upper computer in a Siemens S7 protocol communication mode. The door plate is provided with a 10-inch touch screen, and the door plate is used for intensively displaying the temperature, the pressure, the air quantity, the current air channel position, the current frequency and rotating speed of the centrifugal fan, the indoor atmospheric pressure and signals of all external position sensors in the current air channel. An operator is provided with four industrial remote controllers, and the movement of the telescopic motor and the rotary motor is controlled through buttons. The mechanical design of the telescopic rotating mechanism is provided with a travel limit switch, and when the telescopic rotating mechanism reaches a limit travel, a sensor is triggered to protect equipment from moving in a safe range.
Frequency conversion cabinet: the total power is about 220KW, a Siemens 1200 series controller is used in the cabinet, data interaction is carried out with the control cabinet through a Siemens S7 protocol, a CPU in the control cabinet carries out PID control on a centrifugal fan frequency converter through detecting data fed back by a current air volume sensor in an air duct, and the air volume is automatically adjusted. The common operating button and pilot lamp of switch board do respectively: emergency stop buttons, system power indicator lights, fault indicator lights, and the like.
The frequency converter cabinet is furnished with operating button and pilot lamp commonly, is respectively: four frequency converters Chinese operating panel, fault indicator light, manual automatic knob, start button, stop button, etc.
The main principle is as follows:
the purpose of accurately controlling the centrifugal fan is achieved by matching components such as a contactor, a relay, an isolation protection module and a protection module.
An operator uses a remote controller to carry out remote control, a remote control receiver in the control cabinet receives the signals, the received signals are internally processed and drive a contactor to work, and the contactor connects a main power supply to drive a specified motor to run. An operator presses a start button at a button on a control cabinet, a relay in the control cabinet is switched on, a start command is sent to a frequency converter, the frequency converter is started, and a cooling fan in the cabinet and a cooling fan of a motor are simultaneously started to cool the control cabinet and the motor when the frequency converter is started; when a person presses a stop button on the control cabinet, the relay is disconnected, and the frequency converter stops; stopping the control cabinet cooling fan and the motor cooling fan 120 seconds later; when the operator opens the cabinet door, the illumination of the control cabinet is automatically opened.
The working process is described, the upper computer 1c sends a control command to the main control circuit 1 (front view) of the control cabinet through the ethernet, and the main control circuit 1 (front view) of the control cabinet is responsible for the centralized management task of the frequency conversion circuit 2 (front view) and the frequency conversion circuit 2 (rear view). Examples are: after an operator sends a starting command at an upper computer 1c, a frequency converter in a frequency conversion circuit 2 (front view) and a frequency converter in the frequency conversion circuit 2 (rear view) are opened, electromagnetic valves (10, 11, 12 and 13) are opened at the same time, after the frequency converter is opened, air valves (31, 32, 33 and 34) are opened, the air quantity is sent to an air outlet, an air quantity sensor (14, 15, 16 and 17) is arranged at the air outlet, parameters of the air quantity and the air pressure are monitored by the air pressure sensors (18, 19, 20 and 21) in real time and fed back to a main control circuit 1 (front view), the main control circuit 1 (front view) carries out comparison output, namely, the difference value between the set air quantity and the feedback air quantity is calculated, the output intensity of the frequency conversion circuit 2 (front view) and the frequency conversion circuit 2 (rear view) is controlled according to the calculated difference value proportion, if the current feedback value is consistent with the set value, the, the output intensity will be increased.
The main control circuit 1 (rear view) is controlled by a remote controller, and the telescopic motors (22, 23, 24 and 25) and the rotating motors (26, 27, 28 and 29) can be directly driven to rotate in the forward and reverse directions by clicking buttons on the industrial remote controller. Because field devices can emit a large amount of electromagnetic interference during operation, signals of the sensors need to be shielded, and in order to prevent the phenomenon of unstable systems during operation, all sensor channels of the systems use isolation filtering modules to process the signals; for concrete structures of the telescopic motors (22, 23, 24 and 25) and the rotating motors (26, 27, 28 and 29), reference can be made to a telescopic rotating device of a locomotive motor air cooling system with application number 201921963663.8.
The system uses a PID soft controller to control the fan, and a user can manually adjust the fan according to the characteristics of each wind system. The manual mode and the automatic mode are for the air volume adjusting mode, when the automatic mode is set, after the frequency converter is started, the frequency converter can automatically perform difference calculation according to the feedback air volume and the set air volume, and perform PID control. The manual mode is that the frequency value is set manually, and the air valve is automatically opened when the frequency converter is started manually for constant-speed operation.
The parameters illustrate that when the touch screen usage drifts, the user can use the touch screen correction to provide the touch accuracy of the touch screen. The buzzer is the sound of the touch screen key, and the user can select sound and silence. And restarting the touch screen when the touch screen is restarted, wherein the lower side of the touch screen is the IP address of each controller. The states of all input and output of the system are displayed, and a user can check whether the peripheral circuit is correct or not.
The technical scheme of the utility model can make "exchange transmission system test bench" normal work, guarantee that the locomotive motor of operation realizes reliably being connected with "air cooling system", distributes away the work heat of electron, optimizes heat dissipation and ventilation scheme, carries out reasonable system calculation, realizes the high-efficient heat dissipation of equipment, and the automatic control logic that the design is reliable is to the operational reliability who improves the test bench.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An intelligent air-cooling control system for a large motor comprises a main control circuit (1), a frequency conversion circuit (2) connected with the main control circuit (1), a plurality of electric valves (3), an inductor (4) and a motor circuit (5); the method is characterized in that:
the main control circuit (1) is provided with a wireless remote control circuit (1a) and a control fan circuit (1b), and the wireless remote control circuit (1a) and the control fan circuit (1b) are respectively connected to the frequency conversion circuit (2); the inductor (4) comprises a wind pressure sensor (4a) and a wind quantity sensor (4 b); the motor circuit (5) comprises a plurality of telescopic motors and a plurality of rotating motors, and the telescopic motors and the rotating motors are connected with the wireless remote control circuit (1a) through a travel switch SE and an alternating current contactor KM; the electric valves (3) are connected with the main control circuit (1) through an intermediate relay KA.
2. The large motor air-cooling intelligent control system according to claim 1, characterized in that:
the wireless remote control circuit (1a) uses the communication terminal F21-E as a circuit communication carrier.
3. The large motor air-cooling intelligent control system according to claim 1, characterized in that:
and the frequency conversion circuit (2) is also provided with an RTD expansion module and an AI _ AO expansion module.
4. The large motor air-cooled intelligent control system according to claim 3, characterized in that:
the frequency conversion circuit (2) is provided with four ABB series 55KW frequency converters.
5. The large motor air-cooled intelligent control system according to claim 4, characterized in that:
4 telescopic motors and 4 rotating motors are arranged in the motor circuit (5), forward and reverse rotation of a common asynchronous motor is controlled, and a travel switch SE is located in the travel of the telescopic motors and the rotating motors.
6. The large motor air-cooled intelligent control system according to claim 4, characterized in that:
the frequency conversion circuit (2) is further provided with a surge protector U1 and a centrifugal fan cooling fan M, the surge protector U1 is connected to the frequency conversion circuit (2) through a breaker QF3, and the centrifugal fan cooling fan M is connected to the frequency conversion circuit (2) through an alternating current contactor and a breaker QF 6.
7. The large motor air-cooling intelligent control system according to claim 1, characterized in that:
the main control circuit (1) is connected with an upper computer (1c) through an Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062146.XU CN210536539U (en) | 2019-11-26 | 2019-11-26 | Air cooling intelligent control system for large motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062146.XU CN210536539U (en) | 2019-11-26 | 2019-11-26 | Air cooling intelligent control system for large motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210536539U true CN210536539U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922062146.XU Active CN210536539U (en) | 2019-11-26 | 2019-11-26 | Air cooling intelligent control system for large motor |
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| Country | Link |
|---|---|
| CN (1) | CN210536539U (en) |
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- 2019-11-26 CN CN201922062146.XU patent/CN210536539U/en active Active
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Inventor after: Zhang Wenbin Inventor after: Gao Libao Inventor before: Gao Libao |