CN215860440U - Intelligent energy-saving water cooling system for diesel locomotive - Google Patents
Intelligent energy-saving water cooling system for diesel locomotive Download PDFInfo
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- CN215860440U CN215860440U CN202121716592.9U CN202121716592U CN215860440U CN 215860440 U CN215860440 U CN 215860440U CN 202121716592 U CN202121716592 U CN 202121716592U CN 215860440 U CN215860440 U CN 215860440U
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Abstract
The utility model relates to an intelligent energy-saving water cooling system for an internal combustion locomotive, which aims to solve the problems that the existing water cooling system of the internal combustion locomotive runs along with the starting of an internal combustion engine, keeps rated work and consumes more energy. The system comprises a diesel engine, a control unit and a cooling water loop, wherein the cooling water loop comprises a first temperature sensor, a high-temperature radiator group, an expansion water tank, an engine oil heat exchanger, a fuel oil preheater, a first water pump, a first flow regulating electromagnetic valve, a second temperature sensor, a third temperature sensor, a low-temperature radiator group, a second water pump, a second flow regulating electromagnetic valve and a fourth temperature sensor. The control unit controls the opening degrees of the first flow regulating solenoid valve and the second flow regulating solenoid valve according to the temperature signals of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor.
Description
Technical Field
The utility model relates to an intelligent energy-saving water cooling system for an internal combustion locomotive.
Background
When the internal combustion engine runs, the temperature of cooling water, lubricating oil, a traction motor, transmission oil of an electric appliance or a hydraulic transmission device and the like of the locomotive can be increased continuously, and if the cooling is not carried out, the power exertion of the internal combustion engine and the transmission device and the service life of parts of the locomotive can be influenced. Therefore, a certain cooling measure is adopted on the internal combustion locomotive to ensure that heat generated by the internal combustion engine and the transmission device during working can be timely discharged, so that the temperature of the internal combustion engine and the transmission device is maintained within an allowable range.
At present, a cooling system of the internal combustion locomotive can be divided into a ventilation cooling system and a water cooling system, wherein the water cooling system mainly cools components of the internal combustion locomotive to ensure the normal operation of the internal combustion locomotive. No matter the working temperature of the internal combustion engine is, the water cooling system can start to operate as long as the internal combustion engine is started, and the operation of the water cooling system can play a role in reaction if the vehicle is just started or needs to be heated in a low-temperature environment. In addition, when the internal combustion engine is in a standby state in a long-distance downhill, the water cooling system is not required to work nominally. The water cooling system is operated by the kinetic energy provided by a diesel engine in the internal combustion engine, so that if the operation of the water cooling system can be reasonably controlled, the effects of energy conservation and environmental protection can be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligent energy-saving water cooling system for an internal combustion locomotive, aiming at solving the problems that the water cooling system of the existing internal combustion locomotive runs along with the starting of an internal combustion engine, keeps rated work and consumes more energy.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an intelligent energy-saving water cooling system for an internal combustion locomotive is characterized in that:
comprises a diesel engine, a control unit and a cooling water loop;
the cooling water loop comprises a first temperature sensor, a high-temperature radiator group, an expansion water tank, an engine oil heat exchanger, a fuel oil preheater, a first water pump, a first flow regulating electromagnetic valve, a second temperature sensor, a third temperature sensor, a low-temperature radiator group, a second water pump, a second flow regulating electromagnetic valve and a fourth temperature sensor;
a high-temperature cooling water outlet of the diesel engine is connected with an inlet of the high-temperature radiator group; the outlet of the high-temperature radiator group is divided into two paths, wherein one path is connected with the inlet of the first water pump through the expansion water tank, and the other path is connected with the inlet of the first water pump through the engine oil heat exchanger and the fuel oil preheater in sequence; the outlet of the first water pump is connected with the high-temperature cooling water inlet of the diesel engine through a first flow regulating electromagnetic valve;
a low-temperature cooling water outlet of the diesel engine is connected with a low-temperature cooling water inlet of the diesel engine through a low-temperature radiator group, an expansion water tank, a second water pump and a second flow regulating electromagnetic valve in sequence;
the first temperature sensor and the second temperature sensor are respectively arranged at a high-temperature cooling water outlet and a high-temperature cooling water inlet of the diesel engine;
the third temperature sensor and the fourth temperature sensor are respectively arranged at a low-temperature cooling water outlet and a low-temperature cooling water inlet of the diesel engine;
the control unit controls the opening degrees of the first flow regulating solenoid valve and the second flow regulating solenoid valve according to the temperature signals of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor.
Further, the high-temperature radiator group comprises a plurality of high-temperature radiators connected in parallel and a first cooling fan used for cooling the high-temperature radiators; the low-temperature radiator group comprises a plurality of low-temperature radiators connected in parallel and a second radiating fan used for radiating heat of the low-temperature radiators.
Furthermore, the control unit comprises a temperature sensor interface module, a first signal conditioning module, a processor module, a DA conversion module, a second signal conditioning module, a combined control module, an electromagnetic valve interface module, a CAN transceiving module, a logic monitoring module and a power module which are connected in sequence;
the temperature sensor interface module receives temperature signals of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor, and transmits the temperature signals to the processor module after filtering and amplitude adjustment are carried out by the first signal conditioning module; the processor module generates an electromagnetic valve adjusting signal according to the received temperature signal, and transmits the electromagnetic valve adjusting signal to the combined control module after digital-to-analog conversion, filtering and amplitude adjustment are sequentially carried out by the DA conversion module and the second signal conditioning module; the combined control module respectively controls the opening degrees of the first flow regulating electromagnetic valve and the second flow regulating electromagnetic valve through the electromagnetic valve interface module according to the received electromagnetic valve regulating signal;
the processor module is communicated with the CAN bus through the CAN transceiving module;
the logic monitoring module is used for detecting system circuit faults and transmitting fault signals to the processor module;
the power supply module is used for supplying power to each module of the control unit.
Further, the control unit controls the rotation speeds of the first cooling fan and the second cooling fan according to temperature signals of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor.
Furthermore, the control unit comprises a temperature sensor interface module, a first signal conditioning module, a processor module, a DA conversion module, a second signal conditioning module, a combined control module, an electromagnetic valve interface module, a PWM control module, a cooling fan interface module, a CAN transceiving module, a logic monitoring module and a power supply module which are connected in sequence;
the temperature sensor interface module receives temperature signals of the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor, and transmits the temperature signals to the processor module after filtering and amplitude adjustment are carried out by the first signal conditioning module; the processor module generates an electromagnetic valve adjusting signal and an air speed adjusting signal according to the received temperature signal, wherein the electromagnetic valve adjusting signal is subjected to digital-to-analog conversion, filtering and amplitude adjustment sequentially through the DA conversion module and the second signal conditioning module and then is transmitted to the combined control module; the combined control module respectively controls the opening degrees of the first flow regulating electromagnetic valve and the second flow regulating electromagnetic valve through the electromagnetic valve interface module according to the received electromagnetic valve regulating signal; the PWM control module receives the air speed adjusting signal and respectively controls the rotating speeds of the first cooling fan and the second cooling fan through the cooling fan interface module;
the processor module is communicated with the CAN bus through the CAN transceiving module;
the logic monitoring module is used for detecting system circuit faults and transmitting fault signals to the processor module;
the power supply module is used for supplying power to each module of the control unit.
Compared with the prior art, the utility model has the beneficial effects that:
according to the intelligent energy-saving water cooling system for the diesel locomotive, the temperature of the cooling water outlet and the temperature of the cooling water inlet of the diesel engine are acquired through the temperature sensor, and the control unit adjusts the opening degree of the flow regulating electromagnetic valve and the rotating speed of the cooling fan on the cooling water loop according to the temperature signal of the temperature sensor, so that the intelligent energy-saving control of the water cooling system is realized, the oil consumption of the diesel locomotive is saved, the service life of the system is prolonged, and the maintenance cost of the system is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent energy-saving water cooling system for an internal combustion locomotive according to the present invention;
FIG. 2 is a schematic diagram of a control unit according to the present invention;
FIG. 3 is a schematic diagram of a logic monitor module according to the present invention.
In the figure, 1-diesel engine, 2-control unit, 3-first temperature sensor, 4-high temperature radiator group, 41-first radiator fan, 5-expansion water tank, 6-engine oil heat exchanger, 7-fuel preheater, 8-first water pump, 9-first flow rate adjustment solenoid valve, 10-second temperature sensor, 11-third temperature sensor, 12-low temperature radiator group, 121-second radiator fan, 13-second water pump, 14-second flow rate adjustment solenoid valve, 15-fourth temperature sensor;
201-a temperature sensor interface module, 202-a first signal conditioning module, 203-a processor module, 204-a conversion module, 205-a second signal conditioning module, 206-a combined control module, 207-an electromagnetic valve interface module, 208-a CAN transceiver module, 209-a logic monitoring module, 210-a PWM control module, 211-a cooling fan interface module and 212-a power supply module.
Detailed Description
In order to make the objects, advantages and features of the present invention more clear, the following description will be made in detail with reference to the accompanying drawings and specific embodiments.
The intelligent energy-saving water cooling system for the diesel locomotive provided by the embodiment is shown in fig. 1 and comprises a diesel engine 1, a control unit 2 and a cooling water loop. The cooling water for cooling the diesel engine 1 is circulated through a cooling water circuit connected to the diesel engine 1, and the control unit 2 adjusts the flow rate and temperature of the cooling water in the cooling water circuit according to the temperature of the cooling water.
Specifically, the cooling water circuit includes a first temperature sensor 3, a high-temperature radiator group 4, an expansion tank 5, an engine oil heat exchanger 6, a fuel preheater 7, a first water pump 8, a first flow rate adjustment solenoid valve 9, a second temperature sensor 10, a third temperature sensor 11, a low-temperature radiator group 12, a second water pump 13, a second flow rate adjustment solenoid valve 14, and a fourth temperature sensor 15. The high temperature radiator group 4 includes a plurality of high temperature radiators in parallel and a first radiator fan 41 for radiating heat from the high temperature radiators, and the low temperature radiator group 12 includes a plurality of low temperature radiators in parallel and a second radiator fan 121 for radiating heat from the low temperature radiators.
The high-temperature cooling water outlet of the diesel engine 1 is connected with the inlet of a high-temperature radiator group 4, the outlet of the high-temperature radiator group 4 is divided into two paths, one path is connected with the inlet of a first water pump 8 through an expansion water tank 5, the other path is connected with the inlet of the first water pump 8 through an engine oil heat exchanger 6 and a fuel preheater 7 in sequence, and the outlet of the first water pump 8 is connected with the high-temperature cooling water inlet of the diesel engine 1 through a first flow regulating electromagnetic valve 9.
The low-temperature cooling water outlet of the diesel engine 1 is connected with the low-temperature cooling water inlet of the diesel engine 1 through a low-temperature radiator group 12, an expansion water tank 5, a second water pump 13 and a second flow regulating electromagnetic valve 14 in sequence.
The first temperature sensor 3 and the second temperature sensor 10 are respectively arranged at the high-temperature cooling water outlet and the high-temperature cooling water inlet of the diesel engine 1; the third temperature sensor 11 and the fourth temperature sensor 15 are respectively provided at the low-temperature cooling water outlet and inlet of the diesel engine 1.
The control unit 2 controls the opening degrees of the first and second flow rate adjustment solenoid valves 9 and 14 and the rotation speeds of the first and second heat dissipation fans 41 and 121, respectively, based on the temperature signals of the first, second, third, and fourth temperature sensors 3, 10, 11, and 15.
The specific structure of the control unit 2 is shown in fig. 2, and includes a temperature sensor interface module 201, a first signal conditioning module 202, a processor module 203, a DA conversion module 204, a second signal conditioning module 205, a combination control module 206, an electromagnetic valve interface module 207, a PWM control module 210, a cooling fan interface module 211, a CAN transceiver module 208, a logic monitoring module 209, and a power supply module 212, which are connected in sequence.
The temperature sensor interface module 201 receives temperature signals of the first temperature sensor 3, the second temperature sensor 10, the third temperature sensor 11 and the fourth temperature sensor 15, and transmits the temperature signals to the processor module 203 after being filtered and amplitude-adjusted by the first signal conditioning module 202. The processor module 203 generates a solenoid valve adjusting signal and a wind speed adjusting signal according to the received temperature signal, wherein the solenoid valve adjusting signal is subjected to digital-to-analog conversion, filtering and amplitude adjustment sequentially through the DA conversion module 204 and the second signal conditioning module 205, and then is transmitted to the combined control module 206, and the combined control module 206 controls the opening degrees of the first flow regulating solenoid valve 9 and the second flow regulating solenoid valve 14 through the solenoid valve interface module 207 according to the received solenoid valve adjusting signal. The control current of the first flow regulating electromagnetic valve 9 and the second flow regulating electromagnetic valve 14 is 4-20 mA, the valve is closed under 4mA, the valve is opened at the maximum under 20mA, and the control current is in equal proportion to the opening of the valve. The PWM control module 210 receives the wind speed adjustment signal and controls the rotation speeds of the first cooling fan 41 and the second cooling fan 121 through the cooling fan interface module 211, respectively.
The processor module 203 communicates with the CAN bus through the CAN transceiver module 208. The logic monitor module 209 is used to detect system circuit faults and transmit fault signals to the processor module 203. The power supply module 212 is used to supply power to the other respective modules of the control unit 2.
The intelligent energy-saving water cooling system provided by the utility model is an improvement on the water cooling system of the existing diesel locomotive, and realizes the regulation and control of the flow regulating electromagnetic valve and the radiating fan by adding the flow regulating electromagnetic valve in a cooling water loop, installing temperature sensors at a cooling water outlet and an inlet of a diesel engine and utilizing a control unit based on temperature signals.
The system has three working modes, namely an automatic operation mode, a constant value operation mode and a set operation mode.
After the diesel locomotive starts, the energy-conserving water cooling system of intelligence begins to operate with automatic operation mode, and the high temperature cooling water export and the entrance temperature of diesel engine 1 are gathered respectively to first temperature sensor 3 and second temperature sensor 10, and the low temperature cooling water export and the entrance temperature of diesel engine 1 are gathered respectively to third temperature sensor 11 and fourth temperature sensor 15 to send temperature signal to control unit 2. The control unit 2 automatically adjusts the opening degrees of the first flow regulating solenoid valve 9 and the second flow regulating solenoid valve 14 and the rotating speeds of the first cooling fan 41 and the second cooling fan 121 according to a preset PID control algorithm, so that when the temperature of the diesel engine 1 is low, the flow rate of cooling water in the cooling water loop is correspondingly low, and the rotating speeds of the first cooling fan 41 and the second cooling fan 121 are low, thereby saving energy consumption; when the temperature of the diesel engine 1 is high, the flow rate of the cooling water in the cooling water circuit is also correspondingly high, and the rotating speeds of the first cooling fan 41 and the second cooling fan 121 are high, so as to perform rapid cooling, thereby achieving the best cooling effect.
In addition, a driver CAN also send an instruction through CAN communication to control the operation of the intelligent energy-saving water cooling system, namely a constant value operation mode and a set operation mode.
The constant value operation mode is that the fixed opening values of the first flow regulating electromagnetic valve 9 and the second flow regulating electromagnetic valve 14 are sent to the control unit 2 through CAN communication, the CAN transceiver module 208 receives the instruction and transmits the instruction to the processor module 203, and the processor module 203 controls the opening degrees of the first flow regulating electromagnetic valve 9 and the second flow regulating electromagnetic valve 14 according to the given opening values.
The operation mode is set to be that a group of system operation parameters are sent to the control unit 2 through CAN communication, the CAN transceiving module 208 receives instructions and transmits the instructions to the processor module 203, and the processor module 203 controls the opening degrees of the first flow regulating electromagnetic valve 9 and the second flow regulating electromagnetic valve 14 according to the given system operation parameters. The system operation parameters comprise operation curves, operation time and the like, and the mode is mainly used when the optimal cooling parameters are obtained in the system debugging stage.
Once the intelligent energy-saving water cooling system breaks down, the intelligent energy-saving water cooling system cannot normally run, and the diesel engine 1 is damaged due to insufficient cooling. In order to ensure the reliability of the system, a logic monitoring module 209 is added to the control unit 2 to implement a fault locking function. The logic monitoring module 209 monitors the system circuit in real time during the operation process, and if a fault is found, transmits a fault signal to the processor module 203 immediately, and the processor module 203 controls the first flow regulating solenoid valve 9 and the second flow regulating solenoid valve 14 to have the maximum opening degree and outputs the fault signal through the CAN transceiver module 208.
The specific structure of the logic monitoring module 209 is shown in fig. 3, wherein the fault signal is to determine whether the output signal collected by the processor module 203 matches the input signal, and if not, the fault signal is to control the output circuit to fail, and then the fault signal is output; the watchdog signal is used for detecting whether the processor module 203 normally operates or not, and outputting the signal if the processor module 203 cannot normally operate; the reset signal is used for detecting whether the power supply is normal or not, and outputting the signal if the power supply is abnormal.
The system does not control the water pump to work, because the water pump can automatically detect the pressure in the working process, and can automatically stop running when the pressure reaches a certain value, so the water pump can be indirectly controlled to work only by controlling the flow regulating electromagnetic valve, and the cost of controlling the flow regulating electromagnetic valve is lower than that of controlling the water pump.
Claims (5)
1. The utility model provides an energy-conserving water cooling system of intelligence for diesel locomotive which characterized in that:
comprises a diesel engine (1), a control unit (2) and a cooling water loop;
the cooling water loop comprises a first temperature sensor (3), a high-temperature radiator group (4), an expansion water tank (5), an engine oil heat exchanger (6), a fuel oil preheater (7), a first water pump (8), a first flow regulating electromagnetic valve (9), a second temperature sensor (10), a third temperature sensor (11), a low-temperature radiator group (12), a second water pump (13), a second flow regulating electromagnetic valve (14) and a fourth temperature sensor (15);
a high-temperature cooling water outlet of the diesel engine (1) is connected with an inlet of the high-temperature radiator group (4); the outlet of the high-temperature radiator group (4) is divided into two paths, wherein one path is connected with the inlet of a first water pump (8) through an expansion water tank (5), and the other path is connected with the inlet of the first water pump (8) through an engine oil heat exchanger (6) and a fuel preheater (7) in sequence; an outlet of the first water pump (8) is connected with a high-temperature cooling water inlet of the diesel engine (1) through a first flow regulating electromagnetic valve (9);
a low-temperature cooling water outlet of the diesel engine (1) is connected with a low-temperature cooling water inlet of the diesel engine (1) through a low-temperature radiator group (12), an expansion water tank (5), a second water pump (13) and a second flow regulating electromagnetic valve (14) in sequence;
the first temperature sensor (3) and the second temperature sensor (10) are respectively arranged at a high-temperature cooling water outlet and a high-temperature cooling water inlet of the diesel engine (1);
the third temperature sensor (11) and the fourth temperature sensor (15) are respectively arranged at a low-temperature cooling water outlet and a low-temperature cooling water inlet of the diesel engine (1);
the control unit (2) respectively controls the opening degrees of the first flow regulating electromagnetic valve (9) and the second flow regulating electromagnetic valve (14) according to temperature signals of the first temperature sensor (3), the second temperature sensor (10), the third temperature sensor (11) and the fourth temperature sensor (15).
2. The intelligent energy-saving water cooling system for the diesel locomotive according to claim 1, characterized in that: the high-temperature radiator group (4) comprises a plurality of high-temperature radiators connected in parallel and a first radiating fan (41) used for radiating heat of the high-temperature radiators; the low-temperature radiator group (12) comprises a plurality of low-temperature radiators connected in parallel and a second radiating fan (121) used for radiating heat of the low-temperature radiators.
3. The intelligent energy-saving water cooling system for the diesel locomotive according to claim 1 or 2, characterized in that: the control unit (2) comprises a temperature sensor interface module (201), a first signal conditioning module (202), a processor module (203), a DA conversion module (204), a second signal conditioning module (205), a combined control module (206), an electromagnetic valve interface module (207), a CAN transceiving module (208), a logic monitoring module (209) and a power supply module (212) which are sequentially connected;
the temperature sensor interface module (201) receives temperature signals of the first temperature sensor (3), the second temperature sensor (10), the third temperature sensor (11) and the fourth temperature sensor (15), and transmits the temperature signals to the processor module (203) after being filtered and amplitude-adjusted by the first signal conditioning module (202); the processor module (203) generates an electromagnetic valve adjusting signal according to the received temperature signal, and transmits the electromagnetic valve adjusting signal to the combined control module (206) after digital-to-analog conversion, filtering and amplitude adjustment are sequentially carried out by the DA conversion module (204) and the second signal conditioning module (205); the combined control module (206) respectively controls the opening degrees of the first flow regulating electromagnetic valve (9) and the second flow regulating electromagnetic valve (14) through an electromagnetic valve interface module (207) according to the received electromagnetic valve regulating signal;
the processor module (203) is communicated with the CAN bus through the CAN transceiving module (208);
the logic monitoring module (209) is used for detecting system circuit faults and transmitting fault signals to the processor module (203);
the power supply module (212) is used for supplying power to each module of the control unit (2).
4. The intelligent energy-saving water cooling system for the diesel locomotive according to claim 2, characterized in that: the control unit (2) respectively controls the rotating speeds of the first cooling fan (41) and the second cooling fan (121) according to temperature signals of the first temperature sensor (3), the second temperature sensor (10), the third temperature sensor (11) and the fourth temperature sensor (15).
5. The intelligent energy-saving water cooling system for the diesel locomotive according to claim 4, characterized in that: the control unit (2) comprises a temperature sensor interface module (201), a first signal conditioning module (202), a processor module (203), a DA conversion module (204), a second signal conditioning module (205), a combined control module (206), an electromagnetic valve interface module (207), a PWM control module (210), a cooling fan interface module (211), a CAN transceiving module (208), a logic monitoring module (209) and a power supply module (212) which are connected in sequence;
the temperature sensor interface module (201) receives temperature signals of the first temperature sensor (3), the second temperature sensor (10), the third temperature sensor (11) and the fourth temperature sensor (15), and transmits the temperature signals to the processor module (203) after being filtered and amplitude-adjusted by the first signal conditioning module (202); the processor module (203) generates an electromagnetic valve adjusting signal and an air speed adjusting signal according to the received temperature signal, wherein the electromagnetic valve adjusting signal is subjected to digital-to-analog conversion, filtering and amplitude adjustment sequentially through the DA conversion module (204) and the second signal conditioning module (205) and then is transmitted to the combined control module (206); the combined control module (206) respectively controls the opening degrees of the first flow regulating electromagnetic valve (9) and the second flow regulating electromagnetic valve (14) through an electromagnetic valve interface module (207) according to the received electromagnetic valve regulating signal; the PWM control module (210) receives the wind speed adjusting signal and respectively controls the rotating speeds of the first cooling fan (41) and the second cooling fan (121) through the cooling fan interface module (211);
the processor module (203) is communicated with the CAN bus through the CAN transceiving module (208);
the logic monitoring module (209) is used for detecting system circuit faults and transmitting fault signals to the processor module (203);
the power supply module (212) is used for supplying power to each module of the control unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121716592.9U CN215860440U (en) | 2021-07-27 | 2021-07-27 | Intelligent energy-saving water cooling system for diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121716592.9U CN215860440U (en) | 2021-07-27 | 2021-07-27 | Intelligent energy-saving water cooling system for diesel locomotive |
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| Publication Number | Publication Date |
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| CN215860440U true CN215860440U (en) | 2022-02-18 |
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| CN202121716592.9U Active CN215860440U (en) | 2021-07-27 | 2021-07-27 | Intelligent energy-saving water cooling system for diesel locomotive |
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2021
- 2021-07-27 CN CN202121716592.9U patent/CN215860440U/en active Active
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