40results about How to "Reduce no-load" patented technology

The invention discloses a switching power supply for an AC / DC-DC self-adaptive instrument within an ultra-wide voltage input range. The switching power supply comprises an input protective circuit, an EMI filter circuit, a power frequency rectification and filter circuit, a high frequency rectification and filter circuit, a boosting conversion circuit, a flyback conversion circuit, a first voltage sampling circuit, a first current sampling circuit, a second voltage sampling circuit, a second current sampling circuit, a first PWM circuit, a second PWM circuit, an auxiliary power supply circuit, a power switching circuit, a voltage detection and comparison control circuit and an optocoupler isolation feedback circuit. A two-stage type cascade circuit is formed by the boosting conversion circuit and the flyback conversion circuit, and the automatic instrument can automatically adapt to power supply of an 85-265V alternating-current power supply and an 18-100V direct-current power supply.

The invention discloses an energy complementation self power supply system, which comprises a solar energy power generation device, a wind energy power generation device, a methanol-water reforming hydrogen production power generation module, an AC DC power conversion device, an electrolytic hydrogen production device, a first methanol synthesis device, a methanol-water storage and conveying device and a load, wherein the solar energy power generation device and the wind energy power generation device provide power for the load and the electrolytic hydrogen production device; the electrolytic hydrogen production device is used for electrolyzing water for hydrogen production, the produced hydrogen is fed to the first methanol synthesis device for synthesizing methanol, in the condition of not sufficient solar energy and wind energy, the synthesized methanol is conveyed to the methanol-water reforming hydrogen production power generation module for hydrogen production and power generation, and power is provided for the load; and the methanol-water reforming hydrogen production power generation module comprises a reformer and a fuel cell, methanol and water are subjected to a reforming hydrogen production reaction in the reformer, the produced hydrogen is fed to the fuel cell, and in the fuel cell, the hydrogen and oxygen in the air are subjected to an electrochemical reaction, and power output is generated. Multiple energies generate power in a complementary mode, power supply continuity is good, and control is easy.

The invention discloses a hydrogen power generation system and a power generation method. The hydrogen power generation system comprises a fuel cell and a water cycle cooling system, wherein the fuel cell is used for electrochemical reaction between hydrogen and oxygen to generate electric energy and the water cycle cooling system is used for cooling the fuel cell; the water cycle cooling system comprises a cooling device, at least two water pumps, a first water container, a water collector and a control device; the cooling device is arranged in the fuel cell; driven by the water pumps, water in the first water container is collected by the water collector, then enters into the cooling device through a water inlet of the fuel cell and returns to the first water container from a water outlet of the fuel cell; the control device is electrically connected with the at least two water pumps so as to control operations of all the water pumps. The water cycle cooling system of the power generation system is low in energy consumption, low in noise, high in safety, strong in reliability and high in cooling efficiency.

The invention discloses a mobile charging station with multiple groups of methanol-water reforming hydrogen production and power generation modules. The mobile charging station comprises a mobile carrier vehicle, a control device, a methanol-water storing and conveying device, at least two groups of methanol-water reforming hydrogen production and power generation modules, an alternating-current and direct-current power conversion device and a plurality of chargers, wherein the control device, the methanol-water storing and conveying device, the at least two groups of methanol-water reforming hydrogen production and power generation modules, the alternating-current and direct-current power conversion device and the plurality of chargers are carried on the mobile carrier vehicle; each methanol-water reforming hydrogen production and power generation module comprises a reformer and a fuel cell; raw materials, namely methanol and water are subjected to reforming hydrogen production reaction in each reformer; the prepared hydrogen enters each fuel cell; in each fuel cell, the hydrogen and oxygen in air are subjected to electrochemical reaction to generate electric energy for outputting; the chargers feed the real-time charging power demand back to the control device in the charging process; and the control device controls an appropriate number of methanol-water reforming hydrogen production and power generation modules to run according to the charging power demand information. The mobile charging station is high in modularization, rapid to start, high in safety and high in reliability; and devices such as electric vehicles can be intelligently and rapidly charged immediately.

An oil-electric combined charge long-distance all-electric ship with storage battery is disclosed, a pilothouse of a ship body is inside provided with a console, an electric propulsion device is arranged at stern, a battery pack is mounted at the bottom of the ship body, and the ship body is also provided with a thermoelectric generating set that is connected with a distribution board having a rectifier. By mounting the battery pack and the thermoelectric generating set on the ship, the invention can utilize two energies including shore power and high energy fuel, and can sufficiently utilize clean energy at locations where the shore power is present, in order to reduce smoke dust, noise, odor and oil / water pollution and to improve working environment on the ship. The invention regards the high energy fuel and the shore power as a composite energy to achieve energy balance, forms a ship electric station with the storage battery centered in a charging way in order to realize full-power propelling, and integrates the advantages of storage battery electric ship and traditional internal combustion engine ship with a view to double index of environment protection and energy conservation as well as endurance. The invention has the characteristics of accuracy control, high endurance, environment protection, energy conservation, and simple and convenient management and operation, and is the electric ship similar to oil-electric hybrid electric vehicle.

The present invention provides a system and method for automatic reservation and scheduling of college faculty member transportation vehicles. A staff usage terminal and a vehicle intelligent terminal are connected with a server through a wireless network, and a database is configured in the server; the staff usage terminal is held by users' hands, and the staff usage terminal comprises an information transmission module and an identity verification module; vehicle intelligent terminal is installed on a vehicle and comprises a GPS location module, an operation speed obtaining module and a passenger identity authentication module; the server comprises an information storage module, an information transmit-receive module and a scheduling module; and the server obtains and receives the corresponding information and requirements of the staff usage terminal and the vehicle intelligent terminal to perform reasonable scheduling of the staff and the vehicles and send the scheduling results and other corresponding information to the staff usage terminal and the vehicle intelligent terminal. The system and method for automatic reservation and scheduling of college faculty member transportation vehicles realize that the faculty members can wait for vehicles at many vehicle waiting stations so as to reduce the no-load condition of vehicles and the detouring phenomenon, reduce the waiting time, improve the system operation stability, reduce the investment of human cost and facilitate system maintenance.

The invention discloses hydrogen raw material production equipment and process for ammonia synthesis. The hydrogen raw material production equipment comprises a control device, a methanol water storage conveyer and at least three groups of methanol water-reforming hydrogen production modules, wherein the control device is electrically connected with the methanol water storage conveyer and each group of methanol water-reforming hydrogen production modules, so as to control the working states of the methanol water storage conveyer and the methanol water-reforming hydrogen production modules; hydrogen prepared by various methanol water-reforming hydrogen production modules is directly conveyed to an ammonia synthesis system through conveying pipelines; and the control device is used for controlling a proper number of methanol water-reforming hydrogen production modules to run according to the hydrogen raw material quantity demand information of the ammonia synthesis system. The hydrogen raw material production equipment is high in modularization; a single module is small in size and fast to start; the hydrogen can be immediately prepared without a hydrogen storage tank, and can be rapidly separated; and the hydrogen raw material production equipment is good in stability, high in intellectualization, sensitive in parameters control of hydrogen preparation temperature, gas flow and air pressure, high in safety and high in reliability.

The invention discloses a transformer with a grade-insulation structure, and the transformer comprise a low-voltage coil, a high-voltage coil, a shielding electrode, a grade-insulation structure and an iron core, wherein the low-voltage coil and the high-voltage coil are respectively arranged at the inner side and outer side of the grade-insulation structure, the iron core arranged at the inner side of the low-voltage coil is provided with a radiating folding screen, and a shield is arranged at the outlet electrode of the high-voltage coil to form the shielding electrode; and the grade-insulation structure comprises a first insulation layer, a second insulation layer, a third insulation layer, an angle ring, a fourth insulation layer, a fifth insulation layer and a sixth insulation layer which are arranged from inside to outside, and the angle ring stretches out of the low-voltage coil and the high-voltage coil. The transformer with the grade-insulation structure has the advantages that the material cost and energy consumption of the transformer are greatly reduced, the reliability of the product is improved, and the service life is prolonged.

The invention discloses a fixed-wing unmanned aerial vehicle used for insecticide spraying. The fixed-wing unmanned aerial vehicle comprises a vehicle body, wings and a tail wing, wherein the wings and the tail wing are mounted on the vehicle body, and vehicle motors and propellers are arranged on the wings. The vehicle body is provided with methanol and water reforming hydrogen making and electricity generating modules, an air inlet, an air injection adjuster, an insecticide sprayer, an insecticide storage cabin, a methanol and water storage container, delivering pumps, an electric power controller and a super capacitor, wherein a reformer and a fuel battery are integrated in each methanol and water reforming hydrogen making and electricity generating module. The air inlet is used for inputting outside air, and the input outside air passes through the fuel batteries and the air injection adjuster sequentially and then is output from the insecticide sprayer. The super capacitor is used for electricity supply when the fixed-wing unmanned aerial vehicle is started and supplies electricity to the vehicle motors when the real-time power of the vehicle motors is increased rapidly. According to the fixed-wing unmanned aerial vehicle used for insecticide spraying and a method for insecticide spraying, the capacity usage ratio and conversion rate are high, the volume of carried insecticide is large, the outside air used by the methanol and water reforming hydrogen making and electricity generating modules can be utilized to spray insecticide, operating cost is low, and environment is not polluted.

The embodiment of the invention provides a front-haul transport network (FTN) and a data transmission method. The FTN comprises an access-type front-haul transport node FTN-ACC for connection with a remote radio unit (RRU), an aggregation-type front-haul transport node FTN-AGG having one other end connected with FTN-ACC and the other end connected with a base band unit pool (BBUs). At least two transmission channels with different transmission delays are established between the FTN-ACC and the FTN-AGG. The FTN-ACC and / or the FTN-AGG are / is specifically used for selecting a corresponding transmission channel for transmission according to a data delay requirement. In the invention, the FTN is divided into the FTN-ACC and the FTN-AGG and a plurality of transmission channels are provided. The corresponding channel transmission can be selected for transmission according to the data transmission delay. On the one hand, the transmission delay of different data can be satisfied. On the other hand, the non load of the transmission resources can be reduced as much as possible to enhance the effective utilization of the transmission resources.

The invention discloses equipment and a process for producing crude hydrogen for hydrogenizing and refining a petroleum product, wherein the equipment comprises a control device, a methanol water storing and conveying device and at least three sets of methanol water reforming and hydrogen-producing modules; the control device is electrically connected with the methanol water storing and conveying device and each set of methanol water reforming and hydrogen-producing module, so that the working states of the methanol water storing and conveying device and various sets of methanol water reforming and hydrogen-producing modules are controlled; hydrogen produced by various sets of methanol water reforming and hydrogen-producing modules is directly conveyed to a petroleum product hydrogenizing and refining system through a conveying pipeline; and the control device properly controls the methanol water reforming and hydrogen-producing modules to operate according to the crude hydrogen requirement amount of the petroleum product hydrogenizing and refining system. The equipment disclosed by the invention is high in modularization, small in single module volume, rapid to start, good in stability and high in intelligentization, safety and reliability; a hydrogen storage tank is unnecessary; hydrogen can be produced instantly; hydrogen can be rapidly separated; and the parameters, such as the hydrogen production temperature, the gas flow and the air pressure, are controlled sensitively.

The invention discloses a peak shaving and load shifting power supply system based on a methanol water reforming hydrogen generation power generation system. The system comprises a control device, a methanol water storage and transmission device, at least two methanol water reforming hydrogen generation power generation modules, a power conversion device, a load and an electronic switch, wherein the control device is electrically connected with the methanol water storage and transmission device, the methanol water reforming hydrogen generation power generation modules, the power conversion device and the electronic switch and controls the working conditions of the methanol water storage and transmission device, the methanol water reforming hydrogen generation power generation modules, the power conversion device and the electronic switch, and the electronic switch is used for connecting or disconnecting a mains supply; when the mains supply is in a power utilization peak, the control device controls the electronic switch to cut off the mains supply and controls an appropriate amount of methanol water to be reformed to generate hydrogen and the power generation modules to run according to the electricity utilization power of the load so as to supply power to the load; and when the mains supply is in a power utilization valley, the control device controls the methanol water to generate hydrogen and the power generation modules to rotate and also controls the electronic switch to connect the mains supply so as to supply power to the load. The system has the advantages of high power supply continuity, peak shaving and load shifting, energy saving, emission reduction and high power supply safety, and is easy to control.

The invention discloses a return goods source pushing method for a special line driver, and the method comprises the steps: carrying out the retrieval and pushing of a return order, scheduling an order for a special line truck driver through a platform after the special line truck driver arrives at a destination, enabling the special line truck driver to have an opportunity to load goods in a local place or a certain nearby region, and return to a special line starting point or a nearby city of the starting point; according to the method, the specificity of driver special line transportation is considered; according to the method, the transportation business operation economy is considered, the acceptable date and distance range of return orders are determined through the online platform big data technology, orders meeting the conditions are screened out in the range, the orders are ranked according to rule scores and then pushed to drivers for autonomous selection, the drivers are helped to reduce no-load problems, and the benefits of all parties are improved; the lean degree and level of operation of the transportation e-commerce platform are improved, benefits of personal vehicle owners are practically improved, the transportation e-commerce platform is not only limited to provide vehicle and goods information, and decision support based on data can also be provided.

The invention relates to the field of logistics information publishing and transport capacity management application, and particularly discloses a comprehensive publishing platform of transport capacity information. The comprehensive publishing platform comprises a foundation framework unit, a core business unit, an auxiliary business unit, a uniform business interface, a third-party business interface, a client side and a management side, wherein the core business unit, the auxiliary business unit, the uniform business interface, the third-party business interface, the client side and the management side are independently connected with the foundation framework unit; the core business unit comprises vehicle source management, transport capacity management, management of a source of goods, member management and authentication management; the auxiliary business unit comprises a customer service center, a monitoring center and a statement center; the uniform business interface comprises a mail channel and a short message channel; the third-party business interface comprises a payment side accessed with an external gateway; the client side comprises a self-service server side, a mobile phone application side and a WeChat service side; and the management side comprises a system management maintenance side and a business management side. The comprehensive publishing platform makes vehicle source information and the information of source of goods symmetrical, effectively lowers a no load ratio and improves a transport capacity use ratio.

The invention relates to the technical field of a power equipment transformer, in particular to a sealed amorphous alloy power transformer. An iron core of the transformer is made of amorphous alloy materials, and the basic elements of amorphous alloy comprise ferrum, nickel, cobalt, boron and carbon. The materials are adopted, therefore the no-load and load loss of the transformer is reduced, and the transformer has the characteristics of safety, reliability, environmental protection, energy conservation and the like. In addition, the sealed amorphous alloy power transformer also has the advantages of inflaming retardance, self extinguishment, moisture prevention, crack resistance, no maintenance and the like, can be widely used for high-rise buildings, commercial centers, metros, airports, stations, industrial and mining enterprises and power plants, and is specially suitable for places with high requirements on fire protection such as inflaming, explosion and the like to install and use.

The invention discloses a freight carrier load matching system based on Beidou satellite positioning and communication. According to the technical scheme, the system mainly comprises a vehicle owner vehicle-mounted terminal, a Beidou communication module, a management platform and a cargo supplying party terminal, wherein the vehicle owner vehicle-mounted terminal mainly comprises a Beidou navigation and positioning module and a vehicle-mounted communication module; the Beidou communication module communicates with the vehicle owner vehicle-mounted terminal and the management platform in a bidirectional mode; the management platform is provided with a communication server, a vehicle information management system and a management matching control center; the vehicle information management system communicates with the communication server and the management matching control center in a bidirectional mode; and the cargo supplying party terminal communicates with the communication server in the management platform in a bidirectional mode. The system is mainly applied to the field of transportation.

The invention discloses an on-load capacity-regulating voltage-regulating transformer comprising an oil tank, an iron core, an on-load capacity-regulating voltage-regulating switch and a winding coil;the oil tank is a corrugated oil tank; the iron core is an amorphous alloy iron core; the winding coil is a three-phase three-winding coil which consists of a low-voltage serial-parallel connection layer, a low-voltage serial connection basic layer and a high voltage layer; the low-voltage serial-parallel connection layer, the low-voltage serial connection basic layer and the high voltage layer are sequentially concentrically sleeved on the amorphous alloy iron core; the on-load capacity-regulating voltage-regulating switch is arranged above the amorphous alloy iron core; a high voltage sleeve, a low voltage sleeve and a zero-phase sleeve are arranged on the corrugated oil tank; the high voltage layer is connected with the high voltage sleeve via the on-load capacity-regulating voltage-regulating switch; the low-voltage serial-parallel connection layer and the low-voltage serial connection basic layer are connected with the low voltage sleeve via the on-load capacity-regulating voltage-regulating switch; the low-voltage serial-parallel connection layer is also connected with the zero-phase sleeve; the three-phase three-winding coil, the amorphous alloy iron core and the on-load capacity-regulating voltage-regulating switch are all placed in the corrugated oil tank.

The invention discloses fishing boat GPS power supply equipment. The fishing boat GPS power supply equipment comprises a power supply controller and a storage battery, wherein an input end of the storage battery is electrically connected with a power management circuit; the power management circuit is electrically connected with a fishing boat power supply system, a solar panel assembly and a generator assembly through an independent electric control switch separately; output ends of the fishing boat power supply system, the solar panel assembly and the generator assembly are electrically connected with a signal detector separately; the independent electric control switch and the signal detector are electrically connected to the power supply controller; the storage battery is electrically connected with an inverter; and the output end of the inverter is electrically connected with a fishing boat GPS power supply end. The fishing boat GPS power supply equipment has overvoltage, undervoltage, overcurrent and short-circuit protection functions and an automatic recovery function after a fault is cleared, and has multiple charging modes, and priority charging can be carried out through the power supply controller.

The present invention provides a wind power generator and its stator core and stator core module. The overall size of the core module conforms to the principle that the number of slots per pole and phase is q=1. Two three-phase winding units are arranged in the core module , the electrical angle difference between the two three-phase winding units is 30 degrees. In the wind power generator, its stator core, and the core module of the stator in the embodiment of the present invention, by changing the arrangement of the windings in the stator core module, the electrical angle difference between the two three-phase winding units is 30 degrees, thereby effectively Weaken the 5th and 7th winding harmonic magnetomotive force.

The invention discloses a factory practical power factor compensation method. The method comprises the steps of: selecting an electrical device with a work load when operation close to a rated capacity according to the actual operation demand of a factory, and reducing no-load or low-load operation state time of the electrical device; employing a plurality of electrostatic capacitors to perform reactive compensation to allow the electrostatic capacitors to be dispersedly arranged near the electrical device in each workshop of the factory and allow each electrostatic capacitor to be connected with a motor of a corresponding workshop; or arranging each electrostatic capacitor on a low-voltage but of a corresponding workshop substation; or integrally arranging the electrostatic capacitors tohigh-voltage buses of a high-voltage substation of the factory. The factory practical power factor compensation method can save the factory electric quantity and can reduce the loss of the electric energy of the factory.

The invention discloses a gear fatigue test device, which relates to the technical field of gear fatigue tests. Thegear fatigue test device comprises a driving device, gearbox sets, a clutch, a data acquisition device and a central processing device. Each gearbox set is in transmission connection with the driving device, each gearbox set comprises a transmission shaft set, a first gearbox and a second gearbox, one end of each transmission shaft set is in transmission connection with the first gearbox, the other end of the transmission shaft set is in detachable transmission connection with the second gearbox, a clutch is arranged between each gearbox set and the driving device, each clutch can independently control on-off of power transmission of the driving device, and each gearbox set is in one-to-one corresponding signal connection with a data acquisition device. The central processing device is in signal connection with each data acquisition device and the driving device, and the central processing device can control the starting and stopping of the driving device; therefore, the problems that a gear fatigue test device in the prior art is low in test efficiency and cannot verify the test accuracy are solved.

The invention relates to an intelligent garbage transfer system which comprises a data acquisition unit, a data processing unit and an operation and maintenance management unit. The data acquisition unit is used for acquiring monitoring data of the garbage treatment facility in real time; the data processing unit is used for receiving the monitoring data acquired by the data acquisition unit and generating a garbage operation and maintenance management diagram and a control instruction of the garbage treatment facility according to the monitoring data; and the operation and maintenance management unit is used for receiving an operation instruction of a user, forwarding the operation instruction to the data processing unit and executing operation on the garbage operation and maintenance management diagram according to the operation instruction. According to the invention, the problem of high cost consumption of a garbage transfer system in the related technology is solved, and the life quality of garbage station workers and surrounding personnel is improved.

The invention relates to the technical field of a transformer of electric equipment, in particular to a low-consumption loss transformer. The low-consumption loss transformer comprises a shell, an oil tank, an iron core and a coil, wherein the iron core and the coil are arranged in the oil tank after being assembled into a device body through device body insulation lines and guide lines, a winding on the iron core is a copper winding, the copper winding is made by of alloy copper, a formula of the alloy copper comprises silver, silicon and nickel, thus the no-load loss and load loss can be obviously reduced, the cost is lowered, and the resource is saved. In addition, the low-consumption loss transformer disclosed by the invention has the characteristics of energy saving, long service life, high operation reliability, small occupied area and the like.

The invention discloses a switching power supply for an AC / DC-DC self-adaptive instrument within an ultra-wide voltage input range. The switching power supply comprises an input protective circuit, an EMI filter circuit, a power frequency rectification and filter circuit, a high frequency rectification and filter circuit, a boosting conversion circuit, a flyback conversion circuit, a first voltage sampling circuit, a first current sampling circuit, a second voltage sampling circuit, a second current sampling circuit, a first PWM circuit, a second PWM circuit, an auxiliary power supply circuit, a power switching circuit, a voltage detection and comparison control circuit and an optocoupler isolation feedback circuit. A two-stage type cascade circuit is formed by the boosting conversion circuit and the flyback conversion circuit, and the automatic instrument can automatically adapt to power supply of an 85-265V alternating-current power supply and an 18-100V direct-current power supply.

The invention discloses a high-power transmission power cable. The high-power transmission power cable sequentially comprises a combined water passing pipe layer, a fine copper wire harness layer, an isolating layer and a rubber layer from inside to outside, wherein the fine copper wire harness layer is arranged outside the combined water passing pipe layer, the isolating layer is arranged outside the fine copper wire harness layer in winding and coating modes, and the rubber layer is arranged on the outermost layer of the high-power transmission power cable in squeezing and coating modes. Control pairs are further arranged inside the fine copper wire harness layer, and the control pairs are tightly attached to the combined water passing pipe layer. The combined water passing pipe layer is composed of a cooling water pipe and a cold pipe closing layer which is arranged outside the cooling water pipe in a coating mode. The high-power transmission power cable is in the state of external natural cooling and center forced cooling in the working process, the control pairs are tightly attached to the cooling water pipe, insulating strength can be better maintained, thermal ageing is slowed down, and the stress is small when the cable is bent.

The invention relates to a conveyor belt control device comprising a circuit breaker and a contactor which are sequentially connected between a three-phase power supply and a conveyor belt motor. The circuit breaker can switch on or off the three-phase power supply. The contactor can make the conveyor belt motor rotate forwardly or reversely. A reduced-voltage starter capable of regulating the voltage in a stepless manner is connected between the contactor and the conveyor belt motor. According to the conveyor belt control device, the no-load and on-load starting currents are reduced, the impact on other equipment in a power grid is reduced, a conveyor belt is stable and small in impact when being started or stopped, and a dragging system shaft does not bear very large shear force. Through the optimization of the performances, the service life of the conveyor belt system is prolonged.

The invention belongs to the technical field of transformers, and particularly relates to a polygonal solid volume iron core load-regulating capacitance-regulating transforme, which comprises a polygonal oil tank, wherein the polygonal oil tank comprises a rectangular shell and a trapezoidal shell, and the rectangular shell and the trapezoidal shell are integrally formed; the three-dimensional coiled iron core is a triangular three-dimensional coiled iron core, and the triangular three-dimensional coiled iron core is arranged at the joint of the rectangular shell of the polygonal oil tank andthe trapezoidal shell; the three-phase three-component coil is wound on the three-dimensional coiled iron core; the load-regulating capacitance-regulating switch is arranged in the rectangular shell of the oil tank at one side of the three-dimensional coiled iron core; And the accessory and the three-phase three-winding coil are connected with a load-carrying capacity-regulating switch through anaccessory. The transformer can change the rated operation capacity mode and the voltage tap conversion according to the actual load and voltage condition, reduce the transformer's own no-load loss, achieve the voltage adjustment, improve the economic operation level of the distribution board area, and improve the supply voltage quality.

The invention provides a fracturing truck and a fracturing equipment set. The fracturing truck comprises a chassis, a fracturing pump arranged on the chassis, and a radiator box arranged on the chassis. The radiator box is provided with a fracturing fluid inlet, a fracturing liquid outlet, a medium to be cooled inlet and a medium to be cooled outlet, and fracturing liquid and mediums to be cooled which enter the radiator box are isolated and can exchange heat; the fracturing liquid outlet is communicated with the fracturing liquid inlet of the fracturing pump. By radiating the heat of the mediums to be cooled through the fracturing liquid which serves as the working medium of the fracturing truck, the fracturing truck achieves high cooling efficiency and facilitates size reduction of the radiation structure of the fracturing truck, improves the output efficiency of the fracturing truck and reduces the load of the transportation state of the fracturing truck.