Working condition self-adaptive distributed micro-channel comprehensive heat dissipation system, heat dissipation method and engineering machinery

Abstract

The application discloses a working condition self-adaptive distributed micro-channel comprehensive heat dissipation system, a heat dissipation method and engineering machinery, adopts a distributed modular electric control system, comprises a hydraulic oil heat dissipation device, an engine water cooling heat dissipation device, an engine intercooling heat dissipation device, a transmission oil heat dissipation device and a control system, collects relevant parameters to make real-time judgment on working conditions and adjusts the working modes of various heat dissipation modules accordingly, the heat dissipation module realizes switching of different heat dissipation modes by on-off control of the number of heat dissipation fins, air volume and atomization intensity through electromagnetic valve switches, and various devices realize independent adjustment without affecting each other according to feedback temperature and flow; when the heat dissipation module works, forced convection heat exchange is carried out on the working medium through a brushless speed-regulating air blower, and after atomization, liquid water droplet particles suspended in the air pipe are brought into the heat dissipation fin to realize phase change conversion and increase the heat dissipation efficiency; the heat dissipation system power can be adjusted according to the working state of the machinery, the system itself energy consumption is reduced, the whole machine heat dissipation requirement is met, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of thermal energy and power engineering, specifically to an adaptive distributed microchannel integrated heat dissipation system, a heat dissipation method based on the heat dissipation system, and engineering machinery for installing the heat dissipation system. Background Technology

[0002] Construction machinery has high requirements for its heat dissipation system due to its complex and harsh working environment and varied working modes.

[0003] Currently, in the domestic and international construction machinery industry, most systems use either a direct-drive fan from the engine for cooling or an independent hydraulic motor to drive the fan. The cooling system typically accounts for 7%-10% of the total machine power.

[0004] Because the drive fan is directly connected to the engine, the fan speed changes with the engine speed and cannot be adjusted according to the temperature changes of the working medium in the radiator, resulting in a huge waste of power. In addition, high-power axial fans are noisy, and the air volume gradually increases in the radial direction, while the air volume in the inner ring is weak, which can easily cause uneven heat dissipation of the radiator and low working efficiency.

[0005] Independent hydraulic motor-driven fan cooling systems suffer from low motor efficiency and poor reliability. Furthermore, both of these cooling methods require large radiators to meet cooling requirements, affecting the driver's rearward visibility. Additionally, the complex overall structure and centralized cooling system layout cause interactions between different cooling components, which to some extent negatively impacts cooling effectiveness. Summary of the Invention

[0006] The purpose of this invention is to provide a working condition adaptive distributed microchannel integrated heat dissipation system for engineering machinery, which can replace the high-power axial flow fan and large-size heat sink in traditional engineering machinery.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A distributed microchannel integrated heat dissipation system for adaptive working condition engineering machinery includes a hydraulic oil cooling device 1, an engine water-cooled cooling device 2, an engine intercooler cooling device 3, and a transmission oil cooling device 4; each includes a heat dissipation module, which comprises a cooling fan module 101, a phase change cooling module 102, a diffuser module 103, and a radiator module 104; the cooling fan module 101 includes a brushless speed-regulating blower 10101 and a duct 10102, and the phase change cooling module 102 includes an ultrasonic atomizing device 10201 and an atomizing water container. 10202, the diffuser module 103 is a diffuser pipe 10301 with different inlet and outlet diameters, internally equipped with baffles 10302 in different directions. The radiator module 104 includes several identical microchannel radiator fins 10401 and electromagnetic switching valves 10402. The inlet end of the electromagnetic switching valve 10402 is connected to the outlet end of the previous radiator fin 10401, and the outlet end of the electromagnetic switching valve 10402 is connected to the inlet end of the next radiator fin 10401 and the total return end of the working medium, respectively. Several radiator fins 10401 are arranged along the diffuser... The heat exchange fins are stacked in parallel to each other, and the gaps between the heat exchange fins 10401 are sealed to form a closed air duct space. The heat exchange fins 10401 are connected end to end to form a series connection. The brushless speed-regulating blower 10101 is tightly connected to the diffuser module 103 through the Venturi duct 10102. The atomizing water container 10202 is connected to the throat of the duct 10102. The diffuser duct 10301 has different cross-sectional areas at both ends. The end with the smaller cross-sectional area is tightly connected to the duct 10102, and the end with the larger cross-sectional area is connected to the closed air duct. At the edge of a radiator fin 10401 at the outlet end of the working medium, the working medium inlet and outlet of the radiator fin 10401 are connected to the hydraulic oil pipeline to form a hydraulic oil cooling device 1; the working medium inlet and outlet of the radiator fin 10401 are connected to the engine water cooling pipeline to form an engine water cooling device 2; the working medium inlet and outlet of the radiator fin 10401 are connected to the engine intercooling pipeline to form an engine intercooling device 3; and the working medium inlet and outlet of the radiator fin 10401 are connected to the transmission oil pipeline to form a transmission oil cooling device 4.

[0009] As a preferred technical solution of the present invention, the heat dissipation system further includes a temperature sensor 105, a flow sensor 106, and a control system module 5; the temperature sensor 105 and the flow sensor 106 are located at the inlet and outlet ends of the working medium pipeline.

[0010] As a preferred technical solution of the present invention, the heat dissipation system further includes a control system module 5, wherein the temperature sensor 105, the flow sensor 106, the brushless speed-regulating blower 10101, the ultrasonic atomizing device 10201, and the electromagnetic switch valve 10402 are connected to the control system module 5 for control.

[0011] As a preferred technical solution of the present invention, the guide vane 10302 has the same thickness and length and width dimensions, is evenly distributed on the inner wall of the flow expansion tube 10301, and has the same angle with the flow velocity direction of the flow expansion tube 10301.

[0012] As a more preferred technical solution of the present invention, the gaps between the heat sink 10401 are filled by welding, so that the internal air duct of the heat sink 10401 forms a sealed space.

[0013] Another objective of this invention is to provide a distributed microchannel integrated heat dissipation method for engineering machinery with adaptive operating conditions. This heat dissipation method is based on the aforementioned distributed microchannel integrated heat dissipation system and includes the following steps:

[0014] Step 1: The control system module 5 reads parameters such as engine speed, gearbox gear position and boom angle to determine the real-time working condition of the loader and matches an appropriate cooling mode accordingly.

[0015] Step 2: The control system module 5 comprehensively adjusts the brushless speed-regulating blower 101, ultrasonic atomizing device 201, and electromagnetic switch valve 402 according to the corresponding heat dissipation mode. The cooling medium of the brushless speed-regulating blower 101 enters the air duct 10102. The phase change cooling module 102 provides liquid vaporization cooling water mist that enters the air duct 10102 and then flows into the diffuser module 103. After passing through the diffuser module 103, it enters the air duct formed by the sealed connection of the radiator fins 10401.

[0016] Step 3: Temperature sensor 105 collects the real-time temperature of the working medium outlet in each radiator module, and flow sensor 106 measures the real-time flow of the working medium. This feedback is used to judge the working effect of the radiator. When the temperature exceeds the temperature threshold of the working medium such as hydraulic oil and transmission oil set by the main controller 501, the system starts to force full-power heat dissipation mode until the main controller 501 detects that the working medium outlet temperature has returned to normal. After that, it continues to switch to normal working condition judgment heat dissipation mode.

[0017] Another objective of this invention is to provide an engineering machine having the aforementioned distributed microchannel integrated heat dissipation system.

[0018] The beneficial effects are:

[0019] The working condition adaptive distributed microchannel integrated cooling system for engineering machinery provided by this invention can replace traditional high-power axial flow fan cooling systems within a certain range, reducing overall machine noise and improving overall space utilization. This invention utilizes the principles of forced convection heat transfer and liquid vaporization refrigeration. A flow-expanding module ensures more thorough contact between the cooling medium and the radiator fins, while an electromagnetic switching valve alters the heat exchange length of the working medium within the radiator fins, facilitating sufficient heat exchange and improving cooling efficiency. Furthermore, by collecting data such as the inlet and outlet temperatures of the working medium, the flow rate of the working medium, the angle of the working device, the engine speed, and the gearbox gear position using sensors, this invention can determine the machine's operating status and automatically adjust the cooling system power according to the working conditions. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate the invention and are used to explain it, but do not constitute an undue limitation of the invention.

[0021] Figure 1 This is an overall schematic diagram of the present invention;

[0022] Figure 2 This is a structural diagram of the heat dissipation module of the present invention;

[0023] Figure 3 This is a duct structure diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the phase change cooling module of the present invention;

[0025] Figure 5 This is an isometric view of the diffuser module of the present invention;

[0026] Figure 6 This is a schematic diagram of the heat sink module of the present invention;

[0027] Figure 7 This is a control flowchart of the present invention;

[0028] Figure 8 A flowchart for determining the operating mode of the radiator;

[0029] In the diagram: 101, Cooling fan module; 102, Phase change cooling module; 103, Flow diffuser module; 104, Radiator module; 105, Temperature sensor; 106, Flow sensor; 5, Control system module; 501, Main controller; 502, Angle sensor; 10101, Brushless speed-regulating blower; 10102, Air duct; 10201, Ultrasonic atomizing device; 202, Atomized water container; 10301, Flow diffuser pipe; 10302, Baffle plate; 10401, Radiator fin; 10402, Electromagnetic switch valve; A, Working medium outlet; B, Working medium inlet. Detailed Implementation

[0030] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0031] The following description, in conjunction with the accompanying drawings, further illustrates the detailed content of the present invention and its specific embodiments.

[0032] like Figure 1 As shown, the present invention provides a distributed microchannel integrated heat dissipation system for engineering machinery with working condition adaptability. It adopts a distributed modular design and mainly includes five parts: hydraulic oil heat dissipation module 1, engine water cooling heat dissipation device 2, engine intercooler heat dissipation device 3, transmission oil heat dissipation device 4, and control system module 5. The hydraulic oil heat dissipation device 1 is arranged inside the left side of the escalator, and the other heat dissipation devices are arranged near the rear side of the engine. The control system module 5 is integrated into the cab controller.

[0033] like Figure 2 As shown, the heat dissipation module of this invention mainly includes a heat dissipation fan module 101, a phase change cooling module 102, a diffuser module 103, a radiator module 104, a temperature sensor 105, and a flow sensor 106. The heat dissipation fan module 101 includes a brushless speed-regulating blower 10101 and a duct 10102. The phase change cooling module 102 includes an ultrasonic atomizing device 10201 and an atomized water container 10202. The diffuser module 103 consists of diffuser pipes 10301 with different inlet and outlet diameters, internally equipped with baffles 10302 in different directions. The radiator module 104 includes several identical microchannel radiator fins 10401 and an electromagnetic switching valve 10402.

[0034] The brushless speed-regulating blower 10101 in the heat dissipation fan module 101 is closely connected to the atomizing water container 10202 and the diffuser module 103 in the phase change cooling module 102 via the air duct 10102. The brushless speed-regulating blower 10101 can adjust the output air volume in real time according to the output signal of the main controller 5. The brushless speed-regulating blower 10101 provides the cooling medium for heat exchange, and the phase change cooling module 102 provides liquid vaporization cooling water mist. The cooling medium flows into the diffuser module 103 through the air duct 10102, and after amplification, it flows into the radiator module 104 to exchange heat with the working medium in the radiator fins 10401. The temperature sensor 105 collects the real-time temperature of the working medium outlet, feeds it back to the main controller 501, and makes a judgment to control the working mode of each heat dissipation module. By comprehensively adjusting the brushless speed-regulating blower 10101, the ultrasonic atomizing device 10201, and the electromagnetic switch valve 10402, the minimum power consumption is achieved to meet the most reasonable heat dissipation requirements of the working medium.

[0035] like Figure 3 As shown, the duct 10102 of this invention is a Venturi tube, utilizing the Venturi effect to adsorb water mist generated by the phase change cooling module 102. This effect manifests as an increase in fluid velocity when confined flow passes through a narrowed cross-section; the velocity is inversely proportional to the cross-sectional area. According to Bernoulli's law, an increase in velocity is accompanied by a decrease in fluid pressure. In simpler terms, this effect refers to the generation of low pressure near a high-speed flowing fluid, thereby producing an adsorption effect.

[0036] like Figure 4 As shown, the phase change cooling device 102 of the present invention includes three ultrasonic atomizing devices 10201. Based on the principle of liquid vaporization refrigeration, the water mist generated by the ultrasonic atomizing devices 10201 in the atomizing water container 10202 through high-frequency electronic oscillation is evenly dispersed onto the radiator fins 10401 by the heat dissipation fan module 101. The water mist vaporizes and carries away the heat on the radiator fins 10401. The ultrasonic atomizing devices 10201 utilize high-frequency electronic oscillation with an oscillation frequency of 1.7MHz or 2.4MHz, which is beyond the range of human hearing. This electronic oscillation is completely harmless to humans and animals. Through the high-frequency resonance of the ceramic atomizing plate, the molecular bonds between liquid water molecules in the atomizing water container 10202 are broken to generate naturally drifting water mist. The opening and closing of the ultrasonic atomizing devices 10201 is controlled by the output signal of the main controller 10503.

[0037] like Figure 5As shown, the diffuser module 103 of the present invention includes a diffuser tube 10301 and a guide vane 10302. The diffuser tube 10301 has different cross-sectional areas at its two ends. One end is tightly connected to the outlet of the air duct 10102, and the other end is connected to the radiator fin 10401 at the outlet of the working medium. The guide vane 10302 has the same thickness and length and width dimensions, is uniformly distributed on the inner wall of the diffuser tube 10301, and has the same angle with the flow velocity direction of the diffuser tube 10301. The design of the guide vane is based on fluid dynamics principles, fully considering the local head loss of the fluid flowing through the guide vane, and is optimized using the fluid dynamics software Fluent to achieve the diffusion of the cooling medium with minimal local head loss.

[0038] like Figure 6 As shown, the radiator module 104 of the present invention consists of several identical radiator fins 10401 and electromagnetic switching valves 10402. The radiator fins 10401 employ a multi-element parallel-flow microchannel heat exchanger structure, and the electromagnetic switching valves 10402 are two-position three-way electromagnetic valves. The radiator fins 10401 are stacked parallel to each other along the flow direction of the cooling medium. The gaps between the radiator fins 10401 are filled by welding, creating a sealed space within the airflow channels of the radiator fins 10401 to improve heat dissipation efficiency. The radiator fins 10401 are connected end-to-end to form a series connection. The radiator module 104 and the cooling fan module 101 are connected in a counter-current manner. By changing the on / off state of different electromagnetic switching valves 10402, the flow length of the working medium in the radiator fins 10401 is changed, i.e., the heat exchange distance is altered. The solenoid valve 10402 is a two-position three-way solenoid valve. Its inlet end is connected to the outlet end of the previous radiator fin 10401, and its outlet end is connected to the inlet end of the next radiator fin 10401 and the total return end of the working medium.

[0039] like Figure 7The diagram shows the main control system flow of the present invention. The control system module 5 collects the real-time temperature of the working medium inlet and outlet in the radiator module 104 through the temperature sensor 105, the flow sensor 106 measures the real-time flow of the working medium, the angle sensor 502 measures the real-time position of the working device, and the main controller 501 reads the gear position of the gearbox and the engine speed. The main controller 501 reads parameters such as engine speed, gearbox gear position, and boom angle to determine the real-time operating condition of the loader and matches an appropriate cooling mode accordingly. Based on the corresponding cooling mode, it comprehensively adjusts the brushless speed-regulating blower 101, ultrasonic atomizing device 201, and solenoid valve 402 to achieve the most reasonable cooling requirements of the working medium with the least power consumption. Temperature sensor 105 collects the real-time temperature of the working medium outlet in each radiator module, and flow sensor 106 measures the real-time flow of the working medium to provide feedback on the radiator's working effect. When the temperature exceeds the temperature threshold of the working medium such as hydraulic oil and transmission oil set by the main controller 501, the system starts to force full-power cooling mode until the main controller 501 detects that the working medium outlet temperature has returned to normal, and then continues to switch to normal operating condition cooling mode.

[0040] The main controller 501 of the present invention divides the mechanical working state into three main working states: full power, half power and other, through preset parameters. The above working states correspond to 100%, 60% and 30% of the maximum heat dissipation power of the heat dissipation system, respectively. During actual operation, the working state of the machine is judged by the real-time parameters returned by each sensor, so that the heat dissipation system works in the corresponding mode in real time, thereby achieving the goal of energy saving while meeting the heat dissipation requirements of normal machine operation.

[0041] The main controller 501 of the present invention switches between different heat dissipation modes by comprehensively adjusting the air volume of the brushless speed-regulating blower 10101, the atomization intensity of the ultrasonic atomizing device 10201, and the on / off control of the electromagnetic switch valve 10402 to control the number of radiator fins 10401 connected to the heat dissipation system.

[0042] The main controller 501 of the present invention pre-stores the optimal temperature ranges of hydraulic oil, engine coolant, engine intake air and transmission oil when the machine is working normally.

[0043] After each heat dissipation module has performed heat dissipation, the control system module 5 measures the real-time temperature and flow rate of the working medium outlet in each heat dissipation module through the temperature sensor 105 and the flow sensor 106 and feeds it back to the main controller 501. The main controller 501 determines whether the hydraulic oil, transmission oil, etc. are in a suitable temperature range based on the temperature and flow rate. If the temperature is too high, the controller forces the heat dissipation module to enter the full power heat dissipation state. If the temperature is normal, it enters the above-mentioned normal working condition to select the heat dissipation mode.

[0044] like Figure 8As shown, Figure 7 The flowchart for determining the radiator's operating mode shows that the main controller 501 reads parameters such as engine speed, gearbox gear position, and boom angle to determine the loader's real-time operating condition and matches an appropriate cooling mode accordingly.

[0045] Another embodiment of the present invention provides a distributed microchannel integrated heat dissipation method for adaptive working condition engineering machinery. The heat dissipation method is based on the distributed microchannel integrated heat dissipation system and includes the following steps:

[0046] Step 1: The control system module 5 reads parameters such as engine speed, gearbox gear position and boom angle to determine the real-time working condition of the loader and matches an appropriate cooling mode accordingly.

[0047] Step 2: The control system module 5 comprehensively adjusts the brushless speed-regulating blower 101, ultrasonic atomizing device 201, and electromagnetic switch valve 402 according to the corresponding heat dissipation mode. The cooling medium of the brushless speed-regulating blower 101 enters the air duct 10102. The phase change cooling module 102 provides liquid vaporization cooling water mist that enters the air duct 10102 and then flows into the diffuser module 103. After passing through the diffuser module 103, it enters the air duct formed by the sealed connection of the radiator fins 10401.

[0048] Step 3: Temperature sensor 105 collects the real-time temperature of the working medium outlet in each radiator module, and flow sensor 106 measures the real-time flow of the working medium. This feedback is used to judge the working effect of the radiator. When the temperature exceeds the temperature threshold of the working medium such as hydraulic oil and transmission oil set by the main controller 501, the system starts to force full-power heat dissipation mode until the main controller 501 detects that the working medium outlet temperature has returned to normal. After that, it continues to switch to normal working condition judgment heat dissipation mode.

[0049] The present invention also provides an engineering machinery, wherein the hydraulic oil cooling module 1 is arranged inside the left side of the escalator, the engine water cooling module 2, the engine intercooler cooling module 3, and the transmission oil cooling module 4 are arranged near the rear side of the engine, and the control system module 5 is integrated into the cab controller. The working medium inlet and outlet of the radiator fin 10401 are connected to the hydraulic oil pipeline to form the hydraulic oil cooling device 1, the working medium inlet and outlet of the radiator fin 10401 are connected to the engine water cooling pipeline to form the engine water cooling device 2, the working medium inlet and outlet of the radiator fin 10401 are connected to the engine intercooler pipeline to form the engine intercooler cooling device 3, and the working medium inlet and outlet of the radiator fin 10401 are connected to the transmission oil pipeline to form the transmission oil cooling device 4.

[0050] The above-described embodiments are preferred embodiments of the present invention and are only used to facilitate the illustration of the present invention. They are not intended to limit the present invention in any way. Any person skilled in the art who makes equivalent embodiments by making partial modifications or alterations to the technical content disclosed in the present invention without departing from the scope of the technical features of the present invention shall still fall within the scope of the technical features of the present invention.

Claims

1. A distributed microchannel integrated heat dissipation system for engineering machinery with adaptive operating conditions, characterized in that: This system includes a hydraulic oil cooling module, an engine water-cooling cooling device, an engine intercooling cooling device, and a transmission oil cooling device. Each includes a cooling module, which comprises a cooling fan module, a phase change cooling module, a diffuser module, and a radiator module. The cooling fan module includes a brushless speed-regulating blower and air ducts. The phase change cooling module includes an ultrasonic atomizing device and an atomizing water container. The diffuser module consists of diffuser pipes with different inlet and outlet diameters and internally installed with baffles in different directions. The radiator module includes several identical microchannel radiator fins and an electromagnetic switching valve. The inlet of the electromagnetic switching valve is connected to the outlet of the previous radiator fin, and the outlet of the electromagnetic switching valve is connected to the inlet of the next radiator fin and the main return end of the working medium. Several radiator fins are stacked parallel to each other along the airflow direction of the cooling fins, with gaps between the radiator fins... The gap-sealed connection forms a closed air duct space; the radiator fins are connected end to end to form a series connection; the brushless speed-regulating blower is tightly connected to the diffuser module through a Venturi duct; the atomizing water container is connected to the throat of the duct; the diffuser has different cross-sectional areas at both ends, with the end with the smaller cross-sectional area tightly connected to the duct, and the end with the larger cross-sectional area connected to the edge of a radiator fin located at the working medium outlet end of the closed air duct; the working medium inlet and outlet of the radiator fin are connected to the hydraulic oil pipeline to form a hydraulic oil cooling device; the working medium inlet and outlet of the radiator fin are connected to the engine water cooling pipeline to form an engine water cooling device; the working medium inlet and outlet of the radiator fin are connected to the engine intercooler pipeline to form an engine intercooler cooling device; the working medium inlet and outlet of the radiator fin are connected to the transmission oil pipeline to form a transmission oil cooling device.

2. The working condition adaptive distributed microchannel integrated heat dissipation system for engineering machinery as described in claim 1, characterized in that: The heat dissipation system also includes a temperature sensor and a flow sensor, which are located at the inlet and outlet ends of the working medium pipeline.

3. The working condition adaptive distributed microchannel integrated heat dissipation system for engineering machinery as described in claim 2, characterized in that: The heat dissipation system also includes a control system module, and the temperature sensor, flow sensor, brushless speed-regulating blower, ultrasonic atomizing device, and electromagnetic switch valve are connected to the control system module for control.

4. The working condition adaptive distributed microchannel integrated heat dissipation system for engineering machinery as described in claim 1, characterized in that: The turbulence-disrupting plates have the same thickness and length and width dimensions, are evenly distributed on the inner wall of the flow-expanding tube, and have the same angle with the flow velocity direction of the flow-expanding tube.

5. The working condition adaptive distributed microchannel integrated heat dissipation system for engineering machinery as described in claim 1, characterized in that: Each radiator fin is welded to fill the gaps between the radiator fins, creating a sealed space for the internal airflow channels of the radiator fins.

6. A distributed microchannel integrated heat dissipation method for adaptive working condition engineering machinery, wherein the heat dissipation method is implemented based on the distributed microchannel integrated heat dissipation system according to any one of claims 1 to 5, characterized in that, Includes the following steps: Step 1: The control system module reads parameters such as engine speed, gearbox gear position and boom angle to determine the real-time operating condition of the loader and matches an appropriate cooling mode accordingly. Step 2: The control system module comprehensively adjusts the brushless speed-regulating blower, ultrasonic atomizing device, and electromagnetic switch valve according to the corresponding heat dissipation mode. The cooling medium of the brushless speed-regulating blower enters the air duct, and the phase change cooling module provides liquid vaporization cooling water mist that enters the air duct and then flows into the diffuser module. After passing through the diffuser module, it enters the air duct formed by the sealed connection of the radiator fins. Step 3: Temperature sensors collect the real-time temperature of the working medium outlet in each radiator module, and flow sensors measure the real-time flow of the working medium. This feedback is used to judge the working effect of the radiator. When the temperature exceeds the temperature threshold of the working medium such as hydraulic oil and transmission oil set by the main controller, the system starts to force full-power cooling mode until the main controller detects that the working medium outlet temperature has returned to normal. After that, it continues to switch to normal working condition judgment cooling mode.

7. An engineering machinery, characterized in that: The engineering machinery described herein has a working condition adaptive distributed microchannel integrated heat dissipation system as described in any one of claims 1 to 5.

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