Spraying system, fracturing truck radiator and fracturing truck

Abstract

According to the spraying system, the fracturing truck radiator and the fracturing truck, a main water pipe serves as a water conveying core, one end of the main water pipe controls the overall water flow through a flow adjusting valve, the other end of the main water pipe is connected with three detachable branch water pipes, each branch water pipe is provided with an independent water spraying opening, and modular design is achieved through detachable connection; maintenance is facilitated, and different radiator models can be adapted; the four nozzles are located on the same plane and distributed on the same circumference at equal intervals, the circumference is coaxial with a rotating shaft of the cooling fan, it is ensured that the spraying coverage range is completely matched with the rotating area of the fan, the spraying axes of the nozzles are diverged outwards (non-parallel), the water mist coverage area is enlarged, dynamic interaction is formed between the nozzles and air flow of the fan, and the evaporative cooling effect is enhanced. The nozzle atomizes water and then sprays the atomized water into the fan airflow, the water evaporation heat absorption principle is used for assisting heat dissipation, the temperature of the fracturing truck radiator is remarkably reduced, the airflow of the cooling fan drives water mist to be evenly diffused, local water accumulation and uneven heat dissipation are avoided, and meanwhile the evaporation process is accelerated.

Description

Technical Field

[0001] This application relates to the field of auxiliary cooling for continuous operation of special vehicles, specifically to a spray system, a radiator for a fracturing truck, and a fracturing truck. Background Technology

[0002] As a key piece of equipment for oil and gas extraction, the fracturing truck's structural design integrates power, transmission, and high-pressure operation systems, mainly comprising the following components: an onboard engine, which provides power output and is typically equipped with a high-power diesel engine to drive core components such as the fracturing pump; a conventional system, which transmits power to the fracturing pump through a gearbox, drive shaft, etc., with some equipment using hydraulic transmission to improve stability; a fracturing pump, responsible for pressurizing the fracturing fluid to tens to hundreds of megapascals and injecting it into the formation through high-pressure pipelines; a manifold system, which includes high-pressure tees, four-way valves, control valves, etc., to achieve fluid distribution and pressure control when multiple trucks are operating together; and an intelligent control system, which integrates an instrument truck and automation modules to monitor parameters such as pressure and flow rate in real time and remotely control the operation process.

[0003] In related technologies, the radiator of a fracturing truck is an important part of the fracturing truck and directly affects the overall efficiency of the fracturing truck. The radiators of fracturing trucks are all air-cooled and rely solely on fans for heat dissipation, which results in poor heat dissipation. Summary of the Invention

[0004] This application provides a spraying system, a fracturing truck radiator, and a fracturing truck, which can solve the problem that traditional fracturing truck radiators are all air-cooled and rely solely on fans for heat dissipation, resulting in poor heat dissipation.

[0005] In a first aspect, embodiments of this application provide a spraying system, comprising:

[0006] The main water pipe has a flow regulating valve connected to one end and a first branch water pipe detachably connected to the other end. The first branch water pipe has a first branch spray nozzle and a second branch spray nozzle. The main water pipe is detachably connected to a second branch water pipe and a third branch water pipe. The second branch water pipe has a third branch spray nozzle, and the third branch water pipe has a fourth branch spray nozzle.

[0007] The first branch water nozzle, the second branch water nozzle, the third branch water nozzle, and the fourth branch water nozzle are all equipped with nozzles. The four nozzles are located on the same water surface and on the same circumferential direction. They are equidistantly distributed along the circumferential direction of the circle. The circle is located at the bottom of the cooling fan of the fracturing truck radiator and is coaxial with the rotating shaft of the cooling fan. The spray axes of the four nozzles are diverged along the interval between the circle and the cooling fan.

[0008] In conjunction with the first aspect, in one embodiment, a telescopic mechanism is hinged between the first branch water pipe and the nozzle to which it is connected, and the nozzle includes a universal nozzle.

[0009] The spray system also includes a controller, which is signal-connected to the telescopic mechanism and the cooling fan. The controller is used to control the telescopic mechanism to extend when the speed of the cooling fan reaches a set speed, so that the spray axis of the universal nozzle deflects outward by a set angle.

[0010] In conjunction with the first aspect, in one embodiment, the spraying system further includes a temperature sensor and a controller, the controller being connected to the temperature sensor signal and the flow regulating valve signal, the temperature sensor being installed on the fracturing truck radiator and used to monitor the temperature of the fracturing truck radiator;

[0011] The controller is used to increase the opening of the flow regulating valve when the temperature sensor detects that the temperature of the radiator of the fracturing truck has reached the set temperature value.

[0012] In conjunction with the first aspect, in one embodiment, a vibration sensor is installed on the surface of the first branch water pipe, the second branch water pipe, or the third branch water pipe;

[0013] The sprinkler system also includes a controller. The sensor is signal-connected to the vibration sensor and the flow regulating valve. The controller is used to control the flow regulating valve to close when the vibration sensor detects that the vibration frequency of the first branch water pipe, the second branch water pipe or the third branch water pipe reaches a set frequency value.

[0014] In conjunction with the first aspect, in one embodiment, the sprinkler system further includes an alarm connected to the controller. The controller is configured to control the alarm to sound an alarm and close the flow regulating valve when the vibration sensor detects that the vibration frequency of the first branch water pipe, the second branch water pipe, or the third branch water pipe reaches a set frequency value.

[0015] In conjunction with the first aspect, in one embodiment, the first branch water pipe, the second branch water pipe and the third branch water pipe all include a double-layer composite pipe, so the inner layer of the double-layer composite pipe is made of polytetrafluoroethylene wear-resistant layer and the outer layer is made of stainless steel.

[0016] Furthermore, the first branch water pipe, the second branch water pipe, and the third branch water pipe are connected to the main water pipe via quick-release flanges.

[0017] In conjunction with the first aspect, in one embodiment, the main water pipe, the first branch water pipe, the second branch water pipe, and the third branch water pipe are fixed to the bottom of the cooling fan via a mounting bracket.

[0018] In conjunction with the first aspect, in one embodiment, a water storage container is provided, the output end of which is connected to a water pump, and the output end of the water pump is connected to the flow regulating valve.

[0019] Secondly, embodiments of this application provide a radiator for a fracturing truck, comprising:

[0020] Radiator and cooling fan for fracturing trucks;

[0021] The main water pipe has a flow regulating valve connected to one end and a first branch water pipe detachably connected to the other end. The first branch water pipe has a first branch spray nozzle and a second branch spray nozzle. The main water pipe is detachably connected to a second branch water pipe and a third branch water pipe. The second branch water pipe has a third branch spray nozzle, and the third branch water pipe has a fourth branch spray nozzle.

[0022] The first branch water nozzle, the second branch water nozzle, the third branch water nozzle, and the fourth branch water nozzle are all equipped with nozzles. The four nozzles are located on the same horizontal plane and on the circumference of the same circle. They are equidistantly distributed along the circumference of the circle, which is located at the bottom of the cooling fan and is coaxial with the rotating shaft of the cooling fan. The spray axes of the four nozzles are diverged along the interval between the circle and the cooling fan.

[0023] Thirdly, embodiments of this application provide a fracturing truck, which includes a fracturing truck radiator as described above.

[0024] The beneficial effects of the technical solutions provided in this application include:

[0025] The main water pipe serves as the core of the water supply system. One end controls the overall water flow through a flow regulating valve, while the other end connects to three detachable branch water pipes. Each branch water pipe has an independent spray nozzle, and the modular design facilitates maintenance and compatibility with different radiator models through detachable connections. The four nozzles are located on the same plane and are equidistantly distributed on the same circumference. This circumference is coaxial with the rotation axis of the cooling fan, ensuring that the spray coverage area is perfectly matched with the fan's rotation area. The spray axes of the nozzles diverge outward (not parallel), expanding the water mist coverage area and creating a dynamic interaction with the fan airflow, enhancing the evaporative cooling effect. The nozzles atomize the water and spray it into the fan airflow, using the principle of water evaporation to absorb heat and assist in heat dissipation, significantly reducing the temperature of the fracturing truck's radiator. The airflow of the cooling fan drives the water mist to spread evenly, avoiding local water accumulation and uneven heat dissipation, while accelerating the evaporation process. The water volume is adjusted in real time according to heat dissipation needs, for example, increasing the flow rate under high temperature or high load conditions and reducing water consumption under low load conditions, balancing efficiency and energy saving. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the sprinkler system;

[0028] Figure 2 A three-dimensional structural diagram of the spray system installed at the bottom of the cooling fan of the fracturing truck;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure viewed from below;

[0030] Figure 4 This is a schematic diagram showing the divergence of the spray axes of the four nozzles in the spray system.

[0031] In the diagram: 1. Main water pipe; 2. Flow regulating valve; 3. First branch water pipe; 31. First branch nozzle; 32. Second branch nozzle; 4. Second branch water pipe; 41. Third branch nozzle; 5. Third branch water pipe; 51. Fourth branch nozzle; 6. Mounting bracket; 7. Fracturing truck radiator; 71. Cooling fan; 711. Shaft; 8. Water storage container; 9. Water pump. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0033] This application provides a spraying system, a fracturing truck radiator, and a fracturing truck, which can solve the problem that traditional fracturing truck radiators are all air-cooled and rely solely on fans for heat dissipation, resulting in poor heat dissipation.

[0034] Firstly, such as Figure 1 , Figure 2 and Figure 3As shown in the figure, this application provides a spraying system, which includes: a main water pipe 1, one end of which is connected to a flow regulating valve 2, and the other end of which is detachably connected to a first branch water pipe 3. The first branch water pipe 3 has a first branch spray nozzle 31 and a second branch spray nozzle 32. The main water pipe 1 is detachably connected to a second branch water pipe 4 and a third branch water pipe 5. The second branch water pipe 4 has a third branch spray nozzle 41, and the third branch water pipe 5 has a fourth branch spray nozzle 51. The first branch spray nozzle 31, the second branch spray nozzle 32, the third branch spray nozzle 41, and the fourth branch spray nozzle 51 are all equipped with nozzles. The four nozzles are located on the same water surface and are located on the circumferential direction of the same circle. They are equidistantly distributed along the circumferential direction of the circle. The circle is used to be located at the bottom of the cooling fan 71 of the radiator 7 of the fracturing truck and is coaxially arranged with the rotating shaft 711 of the cooling fan 71. The spray axes of the four nozzles are diverged along the interval between the circle and the cooling fan 71.

[0035] In this embodiment, the main water pipe 1 serves as the core of water supply. One end is controlled by a flow regulating valve 2 to control the overall water flow, and the other end is connected to three detachable branch water pipes (first branch water pipe 3, second branch water pipe 4, and third branch water pipe 5). Each branch water pipe is equipped with an independent spray nozzle (a total of four nozzles). The modular design is achieved through detachable connections, facilitating maintenance and adaptation to different radiator models. The four nozzles are located on the same plane and are equidistantly distributed on the same circumference. This circumference is coaxial with the rotating shaft 711 of the cooling fan 71, ensuring that the spray coverage area is perfectly matched with the fan rotation area. The spray axes of the nozzles diverge outwards (not parallel). The nozzles atomize water and spray it into the fan airflow, using the principle of water evaporation to absorb heat and assist in heat dissipation, significantly reducing the temperature of the fracturing truck radiator 7. The airflow of the cooling fan 71 drives the water mist to spread evenly, avoiding local water accumulation and uneven heat dissipation, while accelerating the evaporation process. The water volume can be adjusted in real time according to the heat dissipation requirements, such as increasing the flow rate under high temperature or high load conditions and reducing water use under low load conditions, balancing efficiency and energy saving. The detachable branch design allows the number and position of nozzles to be adjusted according to the size of the fracturing truck radiator 7, flexibly adapting to different application scenarios.

[0036] In conjunction with the first aspect, in one embodiment, a telescopic mechanism is hinged between the first branch water pipe 3 and the nozzle connected to it, and the nozzle includes a universal nozzle; the spray system also includes a controller, which is signal-connected to the telescopic mechanism and the cooling fan 71, and the controller is used to control the telescopic mechanism to extend when the speed of the cooling fan 71 reaches a set speed, so that the spray axis of the universal nozzle deflects outward by a set angle.

[0037] In this embodiment, the first branch water pipe 3 is connected to the nozzle by a telescopic mechanism (such as an electric push rod or a hydraulic push rod) via a hinge. This telescopic mechanism can extend and retract axially and allows the nozzle to rotate. The nozzle is a universal nozzle, and its spray axis can be adjusted to deflect at an angle according to the movement of the telescopic mechanism to cover a larger heat dissipation area. When the heat dissipation demand increases, the telescopic mechanism extends, pushing the nozzle to move outward. At the same time, the spray axis of the universal nozzle deflects outward at a set angle to expand the water mist coverage area and enhance the cooling effect on the edge area of ​​the cooling fan 71. In the contracted state, the nozzle returns to its original position to avoid interference with surrounding components. The controller monitors the speed signal of the cooling fan 71 in real time. When the speed reaches a preset threshold (such as full-speed operation under high load conditions), the telescopic mechanism is triggered. The controller dynamically adjusts the telescopic length according to the fan speed to achieve the deflection angle of the nozzle and achieve optimal matching between the water mist spray range and the fan airflow.

[0038] In conjunction with the first aspect, in one embodiment, the spraying system further includes a temperature sensor and a controller. The controller is connected to the temperature sensor signal and the flow regulating valve 2 signal. The temperature sensor is installed on the fracturing truck radiator 7 and is used to monitor the temperature of the fracturing truck radiator 7. The controller is used to increase the opening of the flow regulating valve 2 when the temperature sensor detects that the temperature of the fracturing truck radiator 7 has reached a set temperature value.

[0039] In this embodiment, the temperature sensor is directly installed on the surface of the radiator 7 of the fracturing truck or a key heat dissipation channel to monitor the temperature of the metal heat sink or coolant in real time. The temperature data can be transmitted to the controller using an anti-interference 4-20mA or digital signal (such as RS485) to ensure data reliability under high temperature and vibration conditions. The flow regulating valve 2 can be an electric proportional valve or a stepper motor driven valve, and the opening degree can be linearly adjusted (0-100%). Multiple temperature thresholds are preset (such as 60℃, 70℃, 80℃). When the temperature sensor reading reaches the threshold, the controller increases the valve opening degree in a gradient manner to achieve precise matching between water volume and heat dissipation requirements.

[0040] In conjunction with the first aspect, in one embodiment, a vibration sensor is installed on the surface of the first branch water pipe 3, the second branch water pipe 4, or the third branch water pipe 5; the sprinkler system also includes a controller, the sensor being signal-connected to the vibration sensor and the flow regulating valve 2, the controller being used to control the flow regulating valve 2 to close when the vibration sensor detects that the vibration frequency of the first branch water pipe 3, the second branch water pipe 4, or the third branch water pipe 5 reaches a set frequency value.

[0041] In this embodiment, a vibration sensor is attached to the surface of the branch water pipe (first branch water pipe 3, second branch water pipe 4, or third branch water pipe 5) to monitor the pipe vibration frequency in real time. The detection range covers 0-200Hz. The vibration sensor can transmit vibration data to the controller in real time via 4-20mA or CAN bus. The sampling frequency is ≥1kHz to ensure effective capture of high-frequency vibration. The flow regulating valve 2 adopts a fast-response solenoid valve or electric ball valve with a closing action time ≤0.5 seconds, which can quickly cut off the water supply in an emergency. A preset vibration frequency threshold (e.g., 50Hz) is set. When the vibration frequency of one of the branch water pipes exceeds the threshold for 5 seconds, the flow regulating valve 2 is triggered to close completely, blocking the water flow.

[0042] In conjunction with the first aspect, in one embodiment, the sprinkler system further includes an alarm connected to a controller. The controller is used to control the alarm to sound an alarm and close the flow regulating valve 2 when the vibration sensor detects that the vibration frequency of the first branch water pipe 3, the second branch water pipe 4, or the third branch water pipe 5 reaches a set frequency value.

[0043] In this embodiment, a preset vibration frequency threshold (e.g., 50Hz) is set. When the detected value reaches the set value, the following actions are triggered: the flow regulating valve 2 is closed to directly cut off the water circuit to prevent the pipeline from breaking or the spray from going out of control due to abnormal vibration. An audible and visual alarm (e.g., a buzzer + LED flashing) is used to prompt the operator to intervene and check.

[0044] In conjunction with the first aspect, in one embodiment, the first branch water pipe 3, the second branch water pipe 4, and the third branch water pipe 5 all include a double-layer composite pipe. Therefore, the inner layer of the double-layer composite pipe is made of polytetrafluoroethylene wear-resistant layer, and the outer layer is made of stainless steel. Furthermore, the first branch water pipe 3, the second branch water pipe 4, and the third branch water pipe 5 are connected to the main water pipe 1 via a quick-release flange.

[0045] In this embodiment, the inner tube is made of polytetrafluoroethylene (PTFE) and is formed by injection molding to form a continuous wear-resistant layer with a thickness of 1.5-3mm. It can withstand high-speed water flow (≥5m / s) and particulate matter erosion, reducing the wear rate of the inner wall of the pipe to less than 1 / 5 of that of traditional steel pipes. The outer tube is made of 304 stainless steel seamless pipe with a wall thickness of ≥2mm, providing mechanical strength support and resistance to external impact and environmental corrosion (such as acid, alkali and salt spray).

[0046] In conjunction with the first aspect, in one implementation, such as Figure 1 , Figure 2 and Figure 3 As shown, the main water pipe 1, the first branch water pipe 3, the second branch water pipe 4, and the third branch water pipe 5 are fixed to the bottom of the cooling fan 71 via the mounting bracket 6.

[0047] In this embodiment, the mounting bracket 6 uses an L-shaped stainless steel base plate (thickness ≥ 5mm), which is rigidly connected to the bottom flange of the cooling fan 71 through bolt pre-embedded holes to ensure overall torsional rigidity.

[0048] Furthermore, a silicone damping pad is added between the cooling fan 71 and the mounting bracket 6 to reduce the vibration energy transmitted to the pipes when the fan rotates at high speed (1500-3000rpm), thereby reducing the vibration amplitude of the branch water pipes.

[0049] In conjunction with the first aspect, in one implementation, such as Figure 4 As shown, there is a water storage container 8, and the output end of the water storage container 8 is connected to a water pump 9. The output end of the water pump 9 is connected to a flow regulating valve 2.

[0050] In this embodiment, the water storage container 8 can adopt a double-layer stainless steel structure (inner layer 304 stainless steel, outer layer 316L stainless steel), with the inner wall polished to reduce scale adhesion. The volume can be configured from 500-2000L depending on the spraying requirements; the water pump 9 can be a vertical multistage centrifugal pump with a rated flow rate of 10-50 m³ / h. 3 / h, head 60-150m, with frequency conversion speed regulation function to match the dynamic needs of the sprinkler system; flow regulating valve 2 can be an electric proportional regulating valve, supporting remote control of 4-20mA signal.

[0051] Secondly, such as Figure 1 , Figure 2 and Figure 3 As shown, this application embodiment provides a fracturing truck radiator, which includes: a fracturing truck radiator 7 and a cooling fan 71; a main water pipe 1, one end of which is connected to a flow regulating valve 2, and the other end of which is detachably connected to a first branch water pipe 3, the first branch water pipe 3 having a first branch spray nozzle 31 and a second branch spray nozzle 32, the main water pipe 1 being detachably connected to a second branch water pipe 4 and a third branch water pipe 5, the second branch water pipe 4 having a third branch spray nozzle 41, and the third branch water pipe 5 having a fourth branch spray nozzle 51; the first branch spray nozzle 31, the second branch spray nozzle 32, the third branch spray nozzle 41 and the fourth branch spray nozzle 51 are all equipped with nozzles, the four nozzles are located on the same horizontal plane and on the circumferential direction of the same circle, and are equidistantly distributed along the circumferential direction of the circle, and the circle is located at the bottom of the cooling fan 71 and is coaxially arranged with the rotating shaft 711 of the cooling fan 71, and the spray axes of the four nozzles are diverging along the interval direction between the circle and the cooling fan 71.

[0052] In this embodiment, the radiator 7 of the fracturing truck is the core component of the heat dissipation system, responsible for conducting and dissipating the heat generated during the operation of the fracturing truck. The cooling fan 71 generates airflow by rotating, which accelerates the airflow around the radiator 7 of the fracturing truck and improves the heat dissipation efficiency. The fan shaft 711 is coaxially arranged with the center of the circle where the water spray nozzle is located at the bottom of the radiator, which is conducive to achieving uniform heat dissipation. The main water pipe 1 serves as the input pipe for the water source. One end of it is connected to the flow regulating valve 2 to regulate the amount of water entering the heat dissipation system. The other end is connected to the first branch water pipe 3, the second branch water pipe 4, and the third branch water pipe 5 respectively through a detachable connection. Branch water pipes (first branch water pipe 3, second branch water pipe 4, third branch water pipe 5): These water pipes supply cooling water to the radiator 7 of the fracturing truck from different angles. The first branch water pipe 3 has a first branch nozzle 31 and a second branch nozzle 32; the second branch water pipe 4 has a third branch nozzle 41; and the third branch water pipe 5 has a fourth branch nozzle 51. All four nozzles (first branch nozzle 31, second branch nozzle 32, third branch nozzle 41, and fourth branch nozzle 51) are equipped with nozzles. These nozzles are located on the same horizontal plane and on the circumference of the same circle, which is coaxial with the shaft 711 of the cooling fan 71. This ensures that the cooling water can evenly cover the heat dissipation surface of the fracturing truck radiator 7. Along the interval between the circle and the cooling fan 71, the spray axes of the four nozzles are arranged divergently. This design allows the cooling water to form a larger coverage area during the spraying process, improving the heat dissipation efficiency. At the same time, the divergent spray direction also helps to reduce the mutual interference of water flow, ensuring that each nozzle can achieve the best heat dissipation effect.

[0053] Thirdly, embodiments of this application provide a fracturing truck, which includes the fracturing truck radiator mentioned above.

[0054] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A spray system, characterized in that, It includes: A main water pipe (1) is connected to a flow regulating valve (2) at one end and to a first branch water pipe (3) at the other end. The first branch water pipe (3) has a first branch spray nozzle (31) and a second branch spray nozzle (32). The main water pipe (1) is detachably connected to a second branch water pipe (4) and a third branch water pipe (5). The second branch water pipe (4) has a third branch spray nozzle (41), and the third branch water pipe (5) has a fourth branch spray nozzle (51). The first branch water nozzle (31), the second branch water nozzle (32), the third branch water nozzle (41) and the fourth branch water nozzle (51) are all equipped with nozzles. The four nozzles are located on the same water surface and on the same circumferential direction of the same circle. They are equidistantly distributed along the circumferential direction of the circle. The circle is located at the bottom of the cooling fan (71) of the radiator (7) of the fracturing truck and is coaxial with the rotating shaft (711) of the cooling fan (71). The spray axes of the four nozzles are diverged along the interval between the circle and the cooling fan (71).

2. The spray system as described in claim 1, characterized in that, The first branch water pipe (3) is hinged to the nozzle connected to it by a telescopic mechanism, and the nozzle includes a universal nozzle; The spray system also includes a controller, which is connected to the telescopic mechanism and the cooling fan (71) by signal. The controller is used to control the telescopic mechanism to extend when the speed of the cooling fan (71) reaches the set speed, so that the spray axis of the universal nozzle deflects outward by a set angle.

3. The spray system as described in claim 1, characterized in that, The spraying system also includes a temperature sensor and a controller. The controller is connected to the temperature sensor signal and the flow regulating valve (2) signal. The temperature sensor is installed on the radiator (7) of the fracturing truck and is used to monitor the temperature of the radiator (7) of the fracturing truck. The controller is used to increase the opening of the flow regulating valve (2) when the temperature sensor detects that the temperature of the radiator (7) of the fracturing truck has reached the set temperature value.

4. The spray system as described in claim 1, characterized in that, Vibration sensors are installed on the surface of the first branch water pipe (3), the second branch water pipe (4), or the third branch water pipe (5); The sprinkler system also includes a controller. The sensor is connected to the vibration sensor and the flow regulating valve (2). The controller is used to close the flow regulating valve (2) when the vibration sensor detects that the vibration frequency of the first branch water pipe (3), the second branch water pipe (4), or the third branch water pipe (5) reaches a set frequency value.

5. The spray system as described in claim 4, characterized in that, The sprinkler system also includes an alarm, which is signal-connected to the controller. The controller is used to control the alarm to sound an alarm and close the flow regulating valve (2) when the vibration sensor detects that the vibration frequency of the first branch water pipe (3), the second branch water pipe (4), or the third branch water pipe (5) reaches a set frequency value.

6. The spray system as described in claim 1, characterized in that, The first branch water pipe (3), the second branch water pipe (4) and the third branch water pipe (5) all include double-layer composite pipes. Therefore, the inner layer of the double-layer composite pipe is made of polytetrafluoroethylene wear-resistant layer and the outer layer is made of stainless steel. Furthermore, the first branch water pipe (3), the second branch water pipe (4), and the third branch water pipe (5) are connected to the main water pipe (1) via quick-release flanges.

7. The spray system as described in claim 1, characterized in that, The main water pipe (1), the first branch water pipe (3), the second branch water pipe (4) and the third branch water pipe (5) are fixed to the bottom of the cooling fan (71) via the mounting bracket (6).

8. The spray system as described in claim 1, characterized in that, A water storage container (8) is provided, and a water pump (9) is connected to the output end of the water storage container (8). The output end of the water pump (9) is connected to the flow regulating valve (2).

9. A radiator for a fracturing truck, characterized in that, It includes: Radiator (7) and cooling fan (71) of fracturing truck; A main water pipe (1) is connected to a flow regulating valve (2) at one end and to a first branch water pipe (3) at the other end. The first branch water pipe (3) has a first branch spray nozzle (31) and a second branch spray nozzle (32). The main water pipe (1) is detachably connected to a second branch water pipe (4) and a third branch water pipe (5). The second branch water pipe (4) has a third branch spray nozzle (41), and the third branch water pipe (5) has a fourth branch spray nozzle (51). The first branch water nozzle (31), the second branch water nozzle (32), the third branch water nozzle (41) and the fourth branch water nozzle (51) are all equipped with nozzles. The four nozzles are located on the same horizontal plane and on the circumferential direction of the same circle. They are equidistantly distributed along the circumferential direction of the circle, which is located at the bottom of the cooling fan (71) and is coaxial with the rotating shaft (711) of the cooling fan (71). The spray axes of the four nozzles are diverged along the interval between the circle and the cooling fan (71).

10. A fracturing truck, characterized in that, It includes the fracturing truck radiator as described in claim 9.

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