CN210859087U - Automatic control device for air compressor unit of rail car - Google Patents
Automatic control device for air compressor unit of rail car Download PDFInfo
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- CN210859087U CN210859087U CN201921743981.3U CN201921743981U CN210859087U CN 210859087 U CN210859087 U CN 210859087U CN 201921743981 U CN201921743981 U CN 201921743981U CN 210859087 U CN210859087 U CN 210859087U
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- compressor unit
- power supply
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Abstract
The utility model relates to a relevant controlling means of railcar specifically is railcar air compressor unit automatic control device. The problem that after a rail car is changed from mechanical transmission to electric transmission, the control of an air compressor unit needs to be redesigned is solved. The automatic control device of the air compressor unit of the rail car comprises a first motor for driving the air compressor unit and a second motor for driving a heat dissipation fan of the air compressor unit; the system further comprises a (rail vehicle) whole vehicle controller EMS (electric vehicle controller) of an HSYT-20AD model, an inverter (also called a frequency converter) of an FRT04-15/640 model for supplying power to the first motor, a pressure sensor for acquiring the pressure of an air outlet of the air compressor unit and a temperature sensor for acquiring the temperature of the air compressor unit. After the automatic control device is adopted, the failure rate of the air compressor unit is greatly reduced, and the service life is prolonged. The air compressor unit works at a rated rotating speed, so that the efficiency is improved, the air supply speed is increased, and the performance of the rail car is improved. The utility model discloses stable, the structure is reliable in actual operation.
Description
Technical Field
The utility model relates to a railcar, in particular to railcar's relevant controlling means specifically is railcar air compressor unit automatic control device.
Background
The air compressor unit is an important component on a rail car and an important mechanism for ensuring the safe operation of the whole car. The air compressor unit is used as an air source of the air system of the rail car, provides air pressure for the air system, and achieves braking, relieving and operation of auxiliary equipment such as wind whistle and the like of the rail car. In the traditional air compressor unit on the mechanical transmission rail car, the free end of a diesel engine drives the air compressor unit to rotate through a universal shaft, and after the diesel engine is started, the air compressor unit rotates along with the diesel engine. The air inlet of the air compressor unit is provided with a pressure regulating valve, when the total air pressure is less than 600kPa, the air inlet is opened by the pressure regulating valve, and the air compressor unit starts air supply with a load. When the total wind pressure is larger than 800kPa, the air inlet is closed by the pressure regulating valve, the air compressor unit is unloaded, and the air compressor unit rotates in an idle load mode. The air compressor unit cooling fan is coaxial with the air compressor unit, and the rail car diesel engine continuously rotates along with the air compressor unit after being started to cool the air compressor unit. Like this, after the railcar starts, air compressor unit and radiator fan continuously rotate along with the diesel engine, cause the energy waste, and air compressor unit long time operation, the fault rate is high, life is short. The rotating speed of the diesel engine is far less than the rated rotating speed of the air compressor unit, and the air compressor unit driven by the diesel engine has low air supply speed and low efficiency. After the rail car is changed from mechanical transmission to electric transmission, the control of the air compressor unit needs to be redesigned.
Disclosure of Invention
The utility model provides a railcar becomes the electric transmission back by mechanical transmission, and the problem that the control of air compressor unit needs redesign provides a railcar air compressor unit automatic control device to adapt to the automatic control of electric transmission railcar air compressor unit.
The utility model discloses an adopt following technical scheme to realize: the automatic control device of the air compressor unit of the rail car comprises a first motor for driving the air compressor unit and a second motor for driving a heat dissipation fan of the air compressor unit; the system also comprises an HSYT-20AD model (railcar) vehicle control unit EMS, an FRT04-15/640 model inverter (also called a frequency converter) for supplying power to the first motor, a pressure sensor for acquiring the pressure of an air outlet of the air compressor unit and a temperature sensor for acquiring the temperature of the air compressor unit; the direct current input of the inverter is connected with a direct current main power supply, and the alternating current output of the inverter is connected with a first motor; the 7 ports of the vehicle controller EMS are connected with a direct current control power supply through a first relay K1, a normally open contact K1-1 of a first relay K1 is connected between the FOR port and the COM port of the inverter, the 29 ports of the vehicle controller EMS are connected with the direct current control power supply through a second relay K2, and a normally open contact K2-1 of the second relay K2 is connected in series with a power supply loop of the direct current control power supply to a second motor; one end of the pressure sensor is connected with the direct-current control power supply, and the other end of the pressure sensor is connected with an AI port of the inverter; two ends of the temperature sensor are respectively connected with 17 ports and 18 ports of an EMS (energy management system) of the whole vehicle controller; an F port (fault signal output port) of the inverter is connected with a port 45 of the vehicle control unit EMS.
After the rail car is started, the inside of a 7-port of the vehicle controller EMS is grounded, the first relay K1 is electrified, a normally open contact K1-1 of the first relay is closed, the FOR port and the COM port of the inverter are communicated (inverter starting conditions), and the inverter is started at one stage. At this time, the pressure sensor converts the total wind pressure signal into a 4-20mA current signal to be transmitted to the port of the inverter AI. When the total wind pressure is less than 600kPa, the input current of the AI port of the inverter is less than 12mA, the inverter outputs 380VAC electricity to the first motor, and the first motor drives the air compressor unit to work to start wind supply. When the total wind pressure is larger than 800kPa, the input current of the AI port of the inverter is larger than 14.67mA, the inverter stops outputting 380VAC electricity, and the wind supply is stopped. No. 17 port and No. 18 port of the vehicle controller EMS acquire the temperature of the air compressor unit through temperature sensors, when the temperature of the air compressor unit is higher than 85 ℃, the internal part of the port 29 of the vehicle controller EMS is grounded, the second relay K2 is electrified, the normally open contact K2-1 is closed, and the heat dissipation fan of the air compressor unit is connected with the direct-current control power supply to start working and dissipate heat for the air compressor unit. When the temperature of the air compressor unit is less than 70 ℃, the inside of the 29 port of the vehicle controller EMS is suspended, the second relay K2 is powered off, the normally open contact K2-1 is normally opened again, and the heat dissipation fan stops working. When the temperature of the air compressor unit is higher than 105 ℃, or the inverter breaks down in the working process, a (24V) signal output by an F port of the inverter is monitored by a 45 port of the vehicle controller EMS, the inside of a 7 port of the vehicle controller EMS is suspended, the first relay K1 is powered down, a normally open contact K1-1 of the first relay is normally open, the inverter is directly closed, power supply for the first motor is stopped, and the air compressor unit stops working. As can be seen from the above working process, the control program (including the control of the inverter according to the signals of the pressure sensor and the temperature sensor, and the control of the cooling fan according to the signal of the temperature sensor) required by the automatic control device of the air compressor unit of the rail car is a known and simple comparison program, and is known by those skilled in the art or is very easy to implement. The core of the utility model is the hardware structure.
The utility model discloses the beneficial effect who brings: after the automatic control device is adopted, the air compressor unit does not continuously operate along with the diesel engine any longer, and only operates when needed, so that the failure rate is greatly reduced, and the service life is prolonged. The efficiency of the air compressor unit is improved, and the air supply speed of the air system of the rail car is increased. The air compressor unit works at a rated rotating speed, so that the efficiency is improved, the air supply speed is increased, and the performance of the rail car is improved.
The utility model discloses try to be used for railcar such as GCD-300A, GCD-300B, GCD-300C, the device stable performance, structure are reliable in actual operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The automatic control device of the air compressor unit of the rail car comprises a first motor for driving the air compressor unit and a second motor for driving a heat dissipation fan of the air compressor unit; the system also comprises an HSYT-20AD model (railcar) vehicle control unit EMS, an FRT04-15/640 model inverter (also called a frequency converter) for supplying power to the first motor, a pressure sensor for acquiring the pressure of an air outlet of the air compressor unit and a temperature sensor for acquiring the temperature of the air compressor unit; the direct current input of the inverter is connected with a direct current main power supply, and the alternating current output of the inverter is connected with a first motor; the 7 ports of the vehicle controller EMS are connected with a direct current control power supply through a first relay K1, a normally open contact K1-1 of a first relay K1 is connected between the FOR port and the COM port of the inverter, the 29 ports of the vehicle controller EMS are connected with the direct current control power supply through a second relay K2, and a normally open contact K2-1 of the second relay K2 is connected in series with a power supply loop of the direct current control power supply to a second motor; one end of the pressure sensor is connected with the direct-current control power supply, and the other end of the pressure sensor is connected with an AI port of the inverter; two ends of the temperature sensor are respectively connected with 17 ports and 18 ports of an EMS (energy management system) of the whole vehicle controller; an F port (fault signal output port) of the inverter is connected with a port 45 of the vehicle control unit EMS. In the specific implementation, the pressure sensor is HY-2010-1.2MP4-20MA, and the temperature sensor is PT 100. The direct current main power supply is 640V, and the direct current control power supply is 24V.
Claims (5)
1. An automatic control device of an air compressor unit of a rail car comprises a first motor for driving the air compressor unit and a second motor for driving a heat dissipation fan of the air compressor unit; the system is characterized by further comprising a whole vehicle controller EMS with an HSYT-20AD model, an inverter with an FRT04-15/640 model for supplying power to the first motor, a pressure sensor for acquiring the pressure of an air outlet of the air compressor unit, and a temperature sensor for acquiring the temperature of the air compressor unit; the direct current input of the inverter is connected with a direct current main power supply, and the alternating current output of the inverter is connected with a first motor; the 7 ports of the vehicle controller EMS are connected with a direct current control power supply through a first relay K1, a normally open contact K1-1 of a first relay K1 is connected between the FOR port and the COM port of the inverter, the 29 ports of the vehicle controller EMS are connected with the direct current control power supply through a second relay K2, and a normally open contact K2-1 of the second relay K2 is connected in series with a power supply loop of the direct current control power supply to a second motor; one end of the pressure sensor is connected with the direct-current control power supply, and the other end of the pressure sensor is connected with an AI port of the inverter; two ends of the temperature sensor are respectively connected with 17 ports and 18 ports of an EMS (energy management system) of the whole vehicle controller; and an F port of the inverter is connected with a No. 45 port of the vehicle control unit EMS.
2. The automatic control device of the rail car air compressor unit according to claim 1, wherein the type of the pressure sensor is HY-2010-1.2MP4-20 MA.
3. The automatic control device of a rail vehicle air compressor group according to claim 1 or 2, characterized in that the temperature sensor is of the type PT 100.
4. The automatic control device of the rail car air compressor unit as claimed in claim 1 or 2, wherein the direct current main power supply is 640V, and the direct current control power supply is 24V.
5. The railcar air compressor package automatic control device according to claim 3, wherein the DC main power supply is 640V and the DC control power supply is 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743981.3U CN210859087U (en) | 2019-10-17 | 2019-10-17 | Automatic control device for air compressor unit of rail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743981.3U CN210859087U (en) | 2019-10-17 | 2019-10-17 | Automatic control device for air compressor unit of rail car |
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| Publication Number | Publication Date |
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| CN210859087U true CN210859087U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921743981.3U Active CN210859087U (en) | 2019-10-17 | 2019-10-17 | Automatic control device for air compressor unit of rail car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038710A (en) * | 2021-11-11 | 2022-02-11 | 吉林化工学院 | Automatic relay protection device for electric appliance |
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2019
- 2019-10-17 CN CN201921743981.3U patent/CN210859087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038710A (en) * | 2021-11-11 | 2022-02-11 | 吉林化工学院 | Automatic relay protection device for electric appliance |
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