Low temperature environment high power diesel generator set device for tractor power supply

Abstract

The utility model relates to a kind of low-temperature environment high-power diesel generating set device for tractor power supply, including container, diesel generating set, ATS double power supply switching cabinet, environmental temperature sensor, temperature transmitter, cooling fan, electric louvre, electric oil heater and rectifier device, and generator set controller is equipped on diesel generating set;Environmental temperature sensor is located in container and is electrically connected with generator set controller by temperature transmitter, and generator set controller is electrically connected with cooling fan and electric louvre respectively;Generator set controller connects commercial power to detect whether commercial power is failure;Diesel generating set is electrically connected with rectifier device;The input of ATS double power supply switching cabinet is connected with commercial power and diesel generating set respectively, and output is connected with cooling fan and electric oil heater respectively.The device can keep the working environment temperature of diesel generating set in certain range, to guarantee the stability and reliability of diesel generating set work, to be applied to tractor power supply.

Description

Technical Field

[0001] This utility model relates to the field of diesel generator technology, specifically to a high-power diesel generator set device for low-temperature environments used as a power source for tractor vehicles. Background Technology

[0002] Diesel generator sets, as reliable backup power equipment, are widely used in industries such as industry and logistics. Among them, containerized diesel generator sets, due to their advantages such as high integration and flexible deployment, are gradually being used in tractor power systems, converting DC power through a rectifier cabinet to meet the needs of the tractor. However, conventional diesel generator sets are mainly designed for normal ambient temperatures, and their operational reliability and stability face significant challenges when used in low-temperature environments. Specifically, the performance of electrical components (such as controllers and sensors) and mechanical parts (such as engine lubrication systems and fuel supply systems) deteriorates at low temperatures. Increased lubricant viscosity leads to increased starting resistance, reduced battery capacity affects starting voltage, and decreased sensor sensitivity causes parameter detection deviations, resulting in abnormal generator power generation or even operational failure, failing to provide normal power to the rectifier cabinet and tractor load. In cold conditions, the generator set struggles to start quickly and carry loads, and delayed backup power switching after a mains power outage can cause economic losses such as transport operation stoppages and cargo damage. Frequent start-up failures exacerbate component wear, shorten maintenance cycles, increase the frequency of parts replacement, and significantly increase long-term operating costs. Furthermore, most existing container generator sets lack dedicated insulation, heating, and heat dissipation control devices for low temperatures. During standby, the internal temperature is easily affected by external low temperatures and continues to drop. Improper heat dissipation control during operation can trigger overheat protection due to localized high temperatures, further affecting power supply stability. Therefore, to address the aforementioned shortcomings of high-power diesel generator sets in low-temperature environments for tractor power applications, a technical solution is urgently needed to solve the problems of difficult low-temperature starting, poor operational stability, high maintenance costs, and insufficient environmental adaptability, in order to meet the reliability requirements in cold regions or winter scenarios. Utility Model Content

[0003] The purpose of this invention is to provide a low-temperature environment high-power diesel generator set device for tractor power supply. This device can keep the working environment temperature of the diesel generator set within a certain range, thereby ensuring the stability and reliability of the diesel generator set operation, and can be applied to tractor power supply.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a high-power diesel generator set device for low-temperature environments for tractor power supply, comprising a container, a diesel generator set, an ATS dual power switching cabinet, an ambient temperature sensor, a temperature transmitter, a cooling fan, electric louvers, an electric oil heater, and a rectifier. The diesel generator set is equipped with a generator set controller. The electric louvers include generator set air intake and exhaust electric louvers and cooling fan cooling electric louvers. The ambient temperature sensor is installed inside the container to detect the temperature inside the container. The ambient temperature sensor is electrically connected to the generator set controller via a temperature transmitter. The generator set controller is connected to the cooling fan... The electric louvers for the fan and generator set's air intake and exhaust are electrically connected to control the operation of the cooling fan and to control the synchronous switching of the electric louvers for the generator set's air intake and exhaust, and the cooling fan's cooling fan, respectively, when the diesel generator set and cooling fan start. The generator set controller is connected to the mains power supply to detect whether the mains power supply is faulty. The diesel generator set is electrically connected to a rectifier to supply power to the tractor unit through rectification. The inputs of the ATS dual power switching cabinet are connected to the mains power supply and the diesel generator set, respectively, and the outputs are connected to the cooling fan and the electric oil heater, respectively, to automatically switch between using the mains power supply or the diesel generator set's power supply to power the cooling fan and the electric oil heater.

[0005] Furthermore, the container is divided into three independent compartments: a diesel generator compartment, a rectifier compartment, and an oil storage compartment. The main body of the diesel generator set and the ATS dual power switching cabinet are located in the diesel generator compartment, the oil storage tank of the diesel generator set is located in the oil storage compartment, and the cooling fan and rectifier are located in the rectifier compartment. An ambient temperature sensor is installed in the diesel generator compartment, rectifier compartment, and oil storage compartment to detect the temperature in each compartment; the three ambient temperature sensors are electrically connected to the generator set controller via three independent single-channel temperature transmitters or one multi-channel temperature transmitter. The generator set's air intake and exhaust motorized louvers are installed on the side wall of the container corresponding to the diesel generator set compartment, and the cooling fan's cooling motorized louvers are installed on the side wall of the container corresponding to the rectifier compartment. The diesel generator compartment, rectifier compartment, and oil storage compartment are each equipped with an electric oil heater to maintain the temperature in each compartment; the three electric oil heaters are electrically connected to the ATS dual power supply switching cabinet.

[0006] Furthermore, the cooling fan is a Mar cooling fan, and four cooling fans are installed in the rectifier compartment where the rectifier device is located. The four cooling fans are started sequentially when the temperature in the rectifier compartment reaches the set x℃, (x+5)℃, (x+10)℃, and (x+15)℃ respectively, and the corresponding cooling fan electric louvers are opened simultaneously.

[0007] Furthermore, in the standby state, the motorized air intake and exhaust louvers of the diesel generator set remain closed; when the mains power fails, the ATS dual power switching cabinet switches to using the diesel generator set as the power supply, the diesel generator set starts, and the motorized air intake and exhaust louvers of the generator set open simultaneously.

[0008] Furthermore, the ambient temperature sensor is a PT100 temperature sensor, and the temperature transmitter module converts the resistance signal detected by the ambient temperature sensor into a 4-20mA current signal and transmits it to the generator set controller.

[0009] Furthermore, the electric oil heater is equipped with a temperature control switch, which automatically stops heating when the ambient temperature reaches the set value.

[0010] Furthermore, it also includes AC lighting and AC sockets, which are electrically connected to the ATS dual power switching cabinet.

[0011] Furthermore, the rectifier is a DC 600V rectifier output cabinet, which converts the 400V AC power output by the diesel generator set into 600V DC power to power the tractor.

[0012] Compared with existing technologies, this utility model has the following advantages: This utility model provides a high-power diesel generator set device for low-temperature environments used as a power source for tractor units. This device combines an ambient temperature sensor, a cooling fan, electric louvers, an ATS dual-power switching cabinet, and an electric oil heater to form a synergistic insulation and heat dissipation system, effectively solving the problems of difficult starting, poor operational stability, and high maintenance costs of existing diesel generator sets when used as power sources for tractor units in low-temperature environments. In standby mode, the electric louvers are closed to form a sealed space. The electric oil heater is continuously powered by the ATS dual-power switching cabinet and distributed to each compartment, keeping the temperature inside the container stable within the set range and ensuring that the unit is in a hot standby state, capable of quickly responding to start-up commands. When the diesel generator set is running, the temperature sensor monitors the ambient temperature in real time and activates the cooling fans and corresponding electric louvers in stages to achieve precise heat dissipation and prevent the unit from overheating and shutting down due to excessive temperature. The ATS dual-power switching cabinet ensures seamless switching between mains power and generator power, ensuring the continuous and stable operation of electrical appliances such as the electric oil heater. Through the above design, this utility model significantly improves the starting timeliness, operational stability and reliability of diesel generator sets in low-temperature environments, reduces component damage and maintenance needs caused by low temperatures, extends equipment service life, reduces long-term operating costs, and effectively ensures continuous and reliable power supply for tractor units in cold regions or winter scenarios. Attached Figure Description

[0013] Figure 1This is a schematic block diagram of a high-power diesel generator set device for low-temperature environments used as a power source for tractor vehicles, provided in an embodiment of this utility model. Figure 2 This is the circuit of an embodiment of the present utility model. Figure 1 ; Figure 3 This is the circuit of an embodiment of the present utility model. Figure 2 ; Figure 4 This is the circuit of an embodiment of the present utility model. Figure 3 ; Figure 5 This is the circuit of an embodiment of the present utility model. Figure 4 . Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] This embodiment provides a low-temperature environment high-power diesel generator set device for tractor power supply. When the device is composed of an ATS dual power switching cabinet, a cooling fan, electric louvers, and an electric oil heater to form a heat preservation system, it can keep the ambient temperature inside the container within a certain range whether the diesel generator set is in standby or normal operation, thus ensuring the stability and reliability of the diesel generator set.

[0018] like Figure 1As shown, the device specifically includes a container, a diesel generator set 1, an ATS dual power switching cabinet 2, an ambient temperature sensor 3, a temperature transmitter 4, a cooling fan 5, motorized louvers, an electric oil heater 6, AC lighting 7, and a rectifier 8. The diesel generator set 1 is equipped with a generator set controller 9. The motorized louvers include generator set air intake and exhaust motorized louvers 10 and cooling fan cooling motorized louvers 11. The ambient temperature sensor 3 is installed inside the container to detect the temperature inside the container. The ambient temperature sensor 3 is electrically connected to the generator set controller 9 via the temperature transmitter 4. The generator set controller 9 is connected to the cooling fan 5, the generator set air intake and exhaust motorized louvers 10, and the cooling fan cooling motorized louvers 11. Window 11 is electrically connected to control the operation of the cooling fan 5, and to control the synchronous switching of the generator set's intake and exhaust electric louvers 10 and the cooling fan's electric louvers 11 with the start of the diesel generator set 1 and the cooling fan 5, respectively; the generator set controller 9 is connected to the mains power 12 to detect whether the mains power is faulty; the diesel generator set 1 is electrically connected to the rectifier 8 to supply power to the tractor through rectification; the input of the ATS dual power switching cabinet 2 is connected to the mains power 12 and the diesel generator set 1 respectively, and the output is connected to the cooling fan 5, the electric oil heater 6 and the AC lighting 7 respectively, so as to automatically switch between using the mains power 12 or the diesel generator set 1 as the power supply to power the cooling fan 5, the electric oil heater 6 and the AC lighting 7.

[0019] In this embodiment, the container is divided into three independent compartments: a diesel generator compartment, a rectifier compartment, and an oil storage compartment. The main body of the diesel generator set 1 and the ATS dual power switching cabinet 2 are located in the diesel generator compartment, the oil storage tank of the diesel generator set 1 is located in the oil storage compartment, and the cooling fan 5 and the rectifier device 8 are located in the rectifier compartment.

[0020] An ambient temperature sensor 3 is installed in each of the diesel generator compartment, rectifier compartment, and oil storage compartment to detect the temperature in each compartment. The three ambient temperature sensors are electrically connected to the generator set controller via three independent single-channel temperature transmitters or one multi-channel temperature transmitter. In this embodiment, the ambient temperature sensors are PT100 temperature sensors, and the temperature transmitter module converts the resistance signal detected by the ambient temperature sensors into a 4-20mA current signal and transmits it to the generator set controller.

[0021] The generator set air intake and exhaust motorized louvers 10 are installed on the side wall of the container corresponding to the diesel generator set compartment, and the cooling fan cooling motorized louvers 11 are installed on the side wall of the container corresponding to the rectifier compartment.

[0022] Each of the three diesel generator compartment, rectifier compartment, and oil storage compartment is equipped with an electric oil heater (6) to maintain the temperature in each compartment. The three oil heaters are electrically connected to the ATS dual-power switching cabinet. Each oil heater is equipped with a temperature control switch, which automatically stops heating when the ambient temperature reaches the set value.

[0023] When the diesel generator set is in standby mode, the motorized air intake and exhaust louvers of the generator set remain closed. When the mains power fails, the ATS dual power transfer cabinet switches to using the diesel generator set as the power source, the diesel generator set starts, and the motorized air intake and exhaust louvers of the generator set open simultaneously.

[0024] The cooling fan is a Mal cooling fan. The rectifier compartment where the rectifier is located is equipped with four cooling fans. The four cooling fans start sequentially when the temperature in the rectifier compartment reaches the set 25℃, 30℃, 35℃ and 40℃ respectively, and open the corresponding electric cooling louvers at the same time.

[0025] The rectifier is a DC 600V rectifier output cabinet, which converts the 400V AC power output from the diesel generator set into 600V DC power to power the tractor.

[0026] This device enables the diesel generator set to operate normally in low-temperature environments, providing a reliable backup power supply. An ambient temperature sensor installed inside the container monitors the internal temperature in real time, transmitting the collected data to the generator set controller via a temperature transmitter. The controller activates the cooling system when the container's internal temperature reaches a certain level. The cooling system uses four independently controlled MAR cooling fans. Four temperature feedback points (25℃, 30℃, 35℃, 40℃) are set, and the corresponding number of fans are activated based on the ambient temperature data from the sensor to meet the container's cooling requirements. When the generator set is in standby mode, all motorized louvers are closed, providing a relatively enclosed internal space. Oil-filled radiators receive continuous power from the ATS dual-power switch cabinet to heat the ambient temperature in each compartment of the container, thus maintaining a relatively stable internal temperature even in low-temperature environments. This prevents the diesel generator set and other electrical components from malfunctioning due to the external low temperatures. To ensure that the backup power start command is correctly executed in the event of a mains power failure, the diesel generator set starts quickly and switches to power all electrical appliances in the compartment via the ATS. It also provides AC power to the rectifier output cabinet, which outputs 600V DC power after rectification and filtering for the tractor unit. This reduces economic losses caused by mains power outages.

[0027] This invention ensures a continuous power supply to the oil-filled heating element in low-temperature environments through an ATS dual-power switching cabinet. This allows the oil-filled heating element to operate normally for extended periods, maintaining the ambient temperature within the container's compartments within a set range. This keeps the container generator in hot standby mode, ready to start at any time, and guarantees the timely response of the diesel generator set when backup power is needed. The generator set's intake and exhaust motorized louvers, along with the MAR cooling fan and its motorized cooling louvers, ensure timely heat dissipation for the diesel generator set during normal operation. This maintains a stable operating environment and prevents overheating and shutdown due to excessively high ambient temperatures, thus preventing backup power failure and ensuring the stability and reliability of the diesel generator set when the backup power supply is operational.

[0028] Figure 2-5 The implementation circuit diagram of this embodiment is given. Figure 2-5As shown, the PT100 temperature sensor detects the ambient temperature and converts it into a 4-20mA signal via a temperature transmitter, which is then input to the generator set controller (CTR). When the temperature reaches 25°C, the generator set controller outputs a start signal for the M1 cooling fan, supplying power to the coils of relays K9 and K10 via lines 64 and 65. The normally open contacts of K9 and K10 close, and the M1 cooling fan and the electric cooling louver M2 operate normally, dissipating heat inside the container. When the temperature reaches 30°C, the generator set controller outputs a start signal for the M2 cooling fan, supplying power to the coils of relays K11 and K12 via lines 66 and 67. The normally open contacts of K11 and K12 close, and the M2 cooling fan... F2 and the electric cooling louver M3 operate normally, dissipating heat inside the container. When the temperature reaches 35°C, the generator set controller outputs a start signal for the M4 cooling fan MF3, which powers the coils of relays K13 and K14 via lines 68 and 69. The normally open contacts of K13 and K14 close, and the M4 cooling fan and electric cooling louver M4 operate normally, dissipating heat inside the container. When the temperature reaches 40°C, the generator set controller outputs a start signal for the M4 cooling fan MF4, which powers the coils of relays K15 and K16 via lines 70 and 71. The normally open contacts of K15 and K16 close, and the M4 cooling fan and electric cooling louver M5 operate normally, dissipating heat inside the container. In low-temperature environments, if the diesel generator set is in standby mode, the electric louvers M1-M5 (M1 is the generator set's air intake and exhaust electric louver, and M2-M5 are the cooling fan electric louvers) are closed. At this time, the mains power supplies the oil-filled heater sockets CZ1-CZ4 through the ATS dual power transfer cabinet, and the oil-filled heaters operate normally, providing insulation for the interior of the container. When the mains power fails, the generator set controller CTR detects the failure and starts. The generator set controller outputs fuel start signal K1 and start signal K2, and simultaneously controls relay K7 to output, closing the normally open contact of K7, opening the electric louvers M1 for the air intake and exhaust. The diesel generator set starts quickly. Once the diesel generator set is operating normally, the ATS dual power transfer cabinet switches to the generator side to continue supplying power to the load electrical appliances inside the container.

[0029] The instruction for energizing and closing the contacts of drive relays K1-K16 is: lines 56-71, which originate from the digital output port of the generator set controller CTR.

[0030] The operating conditions for triggering the Mal cooling fans MF1-MF4 are: the environment and temperature inside the container reach 25℃, 30℃, 35℃, and 40℃, respectively.

[0031] Among them, the operating conditions of the electric louvers M2-M5 are the same as those of the M1-MF4 cooling fans.

[0032] The power supply for the oil-filled radiator comes from the oil-filled radiator power sockets CZ1-CZ4 inside the container.

[0033] The temperature readings of the container's interior are obtained from a temperature transmitter.

[0034] The temperature transmitter samples the temperature from the ambient temperature sensor.

[0035] In this embodiment, the application of the insulation system ensures that the ambient temperature of the container diesel generator set is stable during normal operation. It prevents the diesel generator set from overheating and shutting down due to excessively high ambient temperatures, which could lead to the failure of the backup power supply. This ensures the stability and reliability of the diesel generator set when the backup power supply is in operation and provides a strong guarantee for the long-term stable standby of the diesel generator set.

[0036] This embodiment has significant advantages in the protection and application of generator sets in low-temperature environments, especially in terms of energy efficiency, insulation effect, maintenance cost and environmental impact. It not only ensures the service life of diesel generator sets, reduces long-term operating costs and has significant energy-saving effects, but also improves the reliability, stability and timeliness of the system.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A high-power diesel generator set for low-temperature environments used as a power source for tractor vehicles, characterized in that, The system includes a container, a diesel generator set, an ATS dual-power transfer switch, an ambient temperature sensor, a temperature transmitter, a cooling fan, motorized louvers, an oil-filled radiator, and a rectifier. The diesel generator set is equipped with a generator set controller. The motorized louvers include motorized louvers for the generator set's air intake and exhaust, and motorized louvers for the cooling fan. The ambient temperature sensor is located inside the container to detect the internal temperature. The ambient temperature sensor is electrically connected to the generator set controller via a temperature transmitter. The generator set controller is connected to the cooling fan, the generator set's air intake and exhaust louvers, and the motorized louvers for the cooling fan. The louvers are electrically connected to control the operation of the cooling fan and to control the synchronous switching of the generator set's air intake and exhaust louvers and the cooling fan's electric louvers with the start-up of the diesel generator set and the cooling fan, respectively. The generator set controller is connected to the mains power to detect whether the mains power is faulty. The diesel generator set is electrically connected to the rectifier to supply power to the tractor through rectification. The inputs of the ATS dual power switching cabinet are connected to the mains power and the diesel generator set, and the outputs are connected to the cooling fan and the electric oil heater, respectively, so as to automatically switch between using the mains power or the diesel generator set as the power supply for the operation of the cooling fan and the electric oil heater.

2. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, The container is divided into three independent compartments: a diesel generator compartment, a rectifier compartment, and an oil storage compartment. The main body of the diesel generator set and the ATS dual power switching cabinet are located in the diesel generator compartment, the oil storage tank of the diesel generator set is located in the oil storage compartment, and the cooling fan and rectifier are located in the rectifier compartment. An ambient temperature sensor is installed in the diesel generator compartment, rectifier compartment, and oil storage compartment to detect the temperature in each compartment; the three ambient temperature sensors are electrically connected to the generator set controller via three independent single-channel temperature transmitters or one multi-channel temperature transmitter. The generator set's air intake and exhaust motorized louvers are installed on the side wall of the container corresponding to the diesel generator set compartment, and the cooling fan's cooling motorized louvers are installed on the side wall of the container corresponding to the rectifier compartment. The diesel generator compartment, rectifier compartment, and oil storage compartment are each equipped with an electric oil heater to maintain the temperature in each compartment; the three electric oil heaters are electrically connected to the ATS dual power supply switching cabinet.

3. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, The cooling fan is a Mal cooling fan. The rectifier compartment where the rectifier device is located is equipped with four cooling fans. The four cooling fans start sequentially when the temperature in the rectifier compartment reaches the set x℃, (x+5)℃, (x+10)℃, and (x+15)℃ respectively, and open the corresponding electric cooling fan louvers simultaneously.

4. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, When the diesel generator set is in standby mode, the motorized air intake and exhaust louvers of the generator set remain closed. When the mains power fails, the ATS dual power switching cabinet switches to using the diesel generator set as the power source, the diesel generator set starts, and the motorized air intake and exhaust louvers of the generator set open simultaneously.

5. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, The ambient temperature sensor is a PT100 temperature sensor, and the temperature transmitter module converts the resistance signal detected by the ambient temperature sensor into a 4-20mA current signal and transmits it to the generator set controller.

6. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, The electric oil heater is equipped with a temperature control switch, which automatically stops heating when the ambient temperature reaches the set value.

7. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, It also includes AC lighting and AC sockets, which are electrically connected to the ATS dual power switching cabinet.

8. The low-temperature environment high-power diesel generator set device for tractor power supply according to claim 1, characterized in that, The rectifier is a DC 600V rectifier output cabinet, which converts the 400V AC power output from the diesel generator set into 600V DC power to power the tractor.

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