36 results about "Environmental air flow" patented technology

A datacenter dry cooling system and method for cooling a heat-generating source are provided and directed to maximizing the absorption of cooling water applied to an evaporating pad for evaporation and ambient air cooling while eliminating any leakages. The evaporating pad is disposed on an air-to-liquid heat exchanger panel supplied by an evaporating cooling water distribution arrangement for applying the controlled amount of cooling water to the evaporating pad. The applied cooling water is to be completely evaporated while being exposed to ambient airflow to dissipate the thermal energy of the heat-generating sources. The evaporating pad includes corresponding temperature and / or humidity sensors for detecting temperature / humidity levels at an air outlet surface and a temperature and humidity sensor at an air inlet surface. A controller coupled to the temperature and humidity sensors and evaporating cooling water arrangement controls the cooling water volume flow based on the detected temperature and humidity.

Described herein is a ventilation system for a building that includes an air source heat pump and an exhaust plenum system. The air source heat pump may include a compressor, a condenser, a reversing valve, and an evaporator. The exhaust plenum system is configured to mix building infrastructure exhaust airflow with an ambient airflow to provide an exhaust-ambient airflow mixture to the air source heat pump. The use of the exhaust-ambient airflow mixture improves the efficiency of the air source heat pump.

The invention discloses a portable atmosphere detection device, and belongs to the technical field of atmosphere detection, and the device comprises a housing, the four corners of the lower end face of the housing are provided with rollers; the air inlet bin is arranged on the upper side of the interior of the machine shell, and a plurality of air grooves are distributed in the circumference of the upper end face of the air inlet bin. The circulating air supply unit is vertically arranged in the machine shell, and the upper end of the circulating air supply unit communicates with the air inlet bin; the air exhaust bin is fixed in the machine shell and located under the circulating air supply unit, and an air exhaust channel is arranged on one side of the air exhaust bin; the gas production unit is installed in the machine shell, and a production pipe is connected between the gas production unit and the circulating air supply unit; according to the invention, high-efficiency dynamic drainage and high-frequency continuous sampling of environmental airflow can be realized, and the accuracy and reliability of atmosphere detection are remarkably improved.

The invention relates to the technical field of high-pressure fluid injection and atomization, and discloses a high-pressure water mist stabilizing device which comprises a main body structure, a high-pressure water pipe and a compressed air pipe are arranged at the rear end of the main body structure, and a center water flow channel is formed in the center of the interior of the main body structure in the axial direction. The liquid inlet end of the central water flow channel is communicated with the high-pressure water pipe, a miniature rectification grid is installed in the central water flow channel in the fluid flowing direction, pressure sensors are installed on the two sides of the interior of the main body structure, and a dynamic adjusting nozzle is installed at the front end of the main body structure; a high-frequency vibrating diaphragm is installed on the outlet end face of the dynamic adjusting nozzle, the periphery of the dynamic adjusting nozzle is coaxially sleeved with an annular airflow stabilizing device, and the periphery of the annular airflow stabilizing device is coaxially sleeved with an axial cyclone auxiliary device. The problem that water mist is prone to being interfered by pressure fluctuation and environment airflow is effectively solved, atomization uniformity is improved, and the effective acting distance is increased.

The invention relates to the technical field of wind tunnel simulation devices, in particular to a low-speed wind tunnel supercooled large water drop splashing simulation device which comprises a load-bearing pollution discharge assembly, two observation plates and a boundary low-resistance simulation mechanism arranged on the load-bearing pollution discharge assembly. The liquid drop throwing mechanism is mounted on one side of the boundary low-resistance simulation mechanism; the releasing mechanism is mounted on the other side of the liquid drop throwing mechanism; the releasing mechanism comprises an outer cover plate and two outer pipes installed at the two ends of the outer cover plate. A boundary low-resistance simulation mechanism is used as a main body of circulating airflow, and a liquid drop throwing mechanism is arranged between the boundary low-resistance simulation mechanism and a releasing mechanism, so that after the airflow is continuously released along the releasing mechanism, an inner cavity of a wind tunnel circularly guides the periphery of the airflow in an unobstructed manner; therefore, the air flow simulated and blown by the device and the environment air flow can be accurately simulated, and the boundary effect of the inner wall of the device on the air flow is avoided.

The application belongs to the technical field of powder processing, and discloses a solid powder automatic quantitative adding device, which comprises a control box, a sample adding mechanism, a weighing base arranged below the sample adding mechanism and a sample adding head replaceably mounted on the sample adding mechanism. In work, the sample adding mechanism drives the sample adding head to add solid powder into a container placed on the weighing base according to the instruction of the control box, and a weighing sensor in the weighing base monitors the weight in real time to realize accurate quantification. The application forms a closed sample adding environment by arranging a wind shield, realizes double damping by using a weighing sensor damping seat and a sample adding mechanism damping seat, effectively isolates environmental airflow and internal and external vibration interference, and realizes full-automatic and high-precision quantitative addition of various powders by replacing the sample adding head with an identification label, thereby improving the efficiency, accuracy and safety of sample adding work.

The present application relates to oil-immersed transformer technical field, specifically, a kind of anti-pollution oil-immersed transformer, including transformer body, still including support mechanism, flow guide mechanism and cleaning mechanism, the support mechanism is at the outside of cooling fin, the support mechanism is made of first baffle and second baffle, the first baffle and second baffle are used to shield the outside of cooling fin, the flow guide mechanism is made of carrier plate and multiple groups of flow guide vanes, the carrier plate is used to carry the rotation of multiple groups of flow guide vanes whole, the flow guide vane is used to guide the ambient airflow, the cleaning mechanism is made of frame and multiple silica gel scrapers, the frame is used to combine multiple silica gel scrapers, the silica gel scraper is used to scrape and clean the outer wall of cooling fin, can be carried out angular deflection by carrier plate to drive flow guide vane, flexible guide ambient airflow flow direction cooling fin, improve heat dissipation efficiency, and can adapt to different wind direction conditions.

Described herein is an apparatus and method for removing moisture and / or sorbates from airstream and / or other fluid. The system comprises a preconditioning desiccant wheel and a main desiccant wheel. The preconditioning desiccant wheel comprises of at least two first sectors for allowing air to pass therethrough, including a first process sector and a first reactivation sector. The main desiccant wheel comprises of at least three second sectors for allowing air to pass therethrough, sequentially including a second outside air sector, a second process sector, and a second reactivation sector. The ambient airstream is sequentially dehumidified in one of the at least two sectors of the preconditioning desiccant wheel and the outside air sector of the main desiccant wheel, before being at least partially supplied for reactivation to the reactivation sector of the main desiccant wheel.

The invention relates to the technical field of oil-immersed transformers, in particular to an anti-pollution oil-immersed transformer which comprises a transformer body and further comprises a supporting mechanism, a flow guide mechanism and a cleaning mechanism, and the supporting mechanism is located on the outer side of cooling fins and composed of a first shielding plate and a second shielding plate; the first shielding plate and the second shielding plate are used for shielding the outer sides of the cooling fins, the flow guide mechanism is composed of a bearing plate and multiple sets of flow guide blades, the bearing plate is used for carrying the multiple sets of flow guide blades to rotate integrally, and the flow guide blades are used for guiding environment airflow. The cleaning mechanism is composed of a frame and a plurality of silica gel scrapers, the frame is used for combining the silica gel scrapers, the silica gel scrapers are used for scraping and cleaning the outer walls of the cooling fins, the guide vanes can be driven by the bearing plate to generate angle deflection, environmental airflow is flexibly guided to flow to the cooling fins, the cooling efficiency is improved, and the service life of the cooling fins is prolonged. And different wind direction conditions can be adapted.

The invention provides a double-fan air conditioner indoor unit and an air conditioner. The double-fan air conditioner indoor unit comprises a shell, a main air supply fan, a heat exchanger and an auxiliary air supply module. A main air outlet and a main air inlet are formed in the shell in the transverse direction. The main air supply fan is arranged in the shell and used for promoting formation of airflow which enters the shell from the main air inlet and is blown out of the main air outlet. The heat exchanger is arranged between the main air inlet and the main air supply fan and used for exchanging heat with flowing airflow. The auxiliary air supply module is rotatably arranged on the shell, located on the lower side of the main air outlet and used for sucking in and blowing out airflow from the outside of the shell. The environment air flow blown out by the auxiliary air supply module is located below the heat exchange air flow blown out by the main air outlet so as to carry the sinking cooling capacity in the heat exchange air flow to continuously flow forwards, so that more cooling capacity is carried by the environment air flow and the heat exchange air flow to the position far away from the indoor unit of the air conditioner together, and the long-distance cooling effect is improved.

The utility model provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a shell, an air supply duct and one or more mixed flow fans. A main air outlet is formed in the front surface of the shell. The air supply duct is arranged in the shell, one end of the air supply duct is connected with the main air outlet and used for guiding heat exchange air flow to be blown out of the air conditioner indoor unit from the main air outlet. The mixed flow fan is arranged in the air supply duct and provided with mixed flow air inlets located in the two transverse sides of the shell and a mixed flow air outlet located in the air supply duct and facing the main air outlet. The mixed flow fan is used for blowing environment airflow so that the environment airflow can be mixed with heat exchange airflow blown out of the main air outlet. According to the air conditioner indoor unit, the air outlet of the air conditioner indoor unit blows the heat exchange airflow and the environment airflow outwards at the same time, so that the temperature difference between the air outlet airflow and the environment air is reduced, the air outlet amount is increased, and the problem that the temperature difference between the air outlet of the air conditioner indoor unit and the environment air is too large is solved.

The invention relates to a distributed building escape path correction method, and the method comprises the steps: monitoring a communication state through an area controller, and switching to an island autonomous mode when the communication is interrupted; collecting data of the area, generating a boundary state vector containing an instant risk value, a risk trend prediction value and an environment airflow vector, and broadcasting the boundary state vector to an adjacent area controller; calculating a migration impedance value based on the feedback data, wherein the migration impedance value comprises a coupling effect penalty term calculated based on the airflow vector and the estimated visitor flow rate; and when the migration impedance value meets the blocking condition, generating a boundary fusing instruction to lock the boundary and correct the escape path. The method has the advantages that autonomous coordination among the regions can be realized when central dispatching is lost, and secondary disasters caused by diffusion of smoke along with the flow of people are effectively prevented.

The invention provides a paint spraying environment airflow cooperative control method and system. The method comprises the steps of collecting basic parameters of a spray gun in real time and processing the basic parameters to obtain basic diffusion form parameters of paint mist, generating initial diffusion path data of the paint mist based on the basic diffusion form parameters of the paint mist, collecting multi-dimensional environmental parameters in a paint spraying environment in real time and inputting the multi-dimensional environmental parameters into a pre-constructed CFD model for simulation, the method comprises the following steps: acquiring airflow distribution data and pollutant distribution data, constructing a multi-objective optimization function based on the airflow distribution data and the pollutant distribution data, solving by adopting a genetic algorithm, and generating a regulation and control instruction for controlling an air supply and exhaust system. According to the system, airflow dynamic regulation and control, micro-negative pressure stable maintenance and self-adaptive cooperative control over the concentration of VOCs can be achieved, efficient trapping and up-to-standard emission of pollutants are achieved, meanwhile, the paint spraying quality is improved, and energy consumption is reduced.

The utility model discloses a sewage biodegradation pool which comprises a degradation pool, a plurality of microbial implants and a plurality of compression aeration components, the microbial implants are uniformly arranged on the inner side of the degradation pool in a staggered direction, and the compression aeration components are arranged in the degradation pool in a matrix manner; the compression aeration assembly comprises a driving seat, a vortex compressor and an aeration stone, a top cover is fixedly mounted on the surface of the driving seat, the top surface of the top cover is connected with a liquid level floating pipe, and the aeration stone is fixedly mounted on the inner side of the driving seat. According to the device disclosed by the utility model, by arranging a novel pressurizing and oxygenating structure and utilizing relative eccentric swinging of the first rotating strip and the second rotating strip, air flow is introduced, pressurized and guided out, so that environmental air flow is input into the aeration stone under mechanical driving and is released from the bottom of the degradation pool through micropores in the surface of the aeration stone, and a large quantity of fine and dense bubble microbead structures are formed; the dissolved oxygen content in the water body is obviously improved.

The application provides a kind of intelligent building energy-saving comprehensive control method, device, equipment and medium, it is related to the technical field of energy-saving regulation and control, method includes: obtaining the airflow direction of the environmental airflow of first outer wall surface, first outer wall surface is any one outer wall surface in the multiple outer wall surfaces of target floor;Based on airflow direction, first opening and closing control instruction is sent to first opening and closing component, to make first opening and closing component control first curtain wall open, so that environmental airflow flows into target floor along air inlet, wherein, air inlet is the air inlet formed by first curtain wall and first outer wall surface, air inlet is opposite to airflow direction, first curtain wall is arranged on first outer wall surface;Air deflector control instruction is sent to first air deflector component, to make first air deflector component control air conditioner air deflector open.The application can effectively reduce the energy consumption of intelligent building by using the rapid airflow of super high-rise building and combining the regulation and control of air conditioning system.

A carbon capture and power generation system includes a manifold, a pair of air foil blades, an electric generation system, a yaw system, one or more environmental sensors, and a processor. The pair of air foil blades are spaced apart to allow environmental air flow between them, and each air foil blade includes a plurality of orifices on the exterior surface. The electric generation system outputs and electric power signal as its propellor rotates, and the yaw system rotates the air foil blades. The environmental sensors monitor environmental conditions and generate respective output data signals. The processor accesses a neural network trained to receive the output data signals from the one or more environmental sensors and generate rotational control signals to the yaw system to rotate the air foil blades based upon the output data signals, and the processor transmits the rotational control signals to the yaw system.

The invention provides a flexible material cutting production line which comprises a visual laser cutting machine, a carrying device, a placing platform and a placing frame, and the visual laser cutting machine, the carrying device and the placing platform are controlled by a computer to achieve linkage. The carrying device comprises a fixing support, a mounting frame, a walking motor, a finished product adsorption carrying device, a lifting driving assembly, a guide rail assembly and a rapid downward pressing device. A lifting device is arranged at the bottom of the containing platform. The lifting device is arranged at the bottom of the placement platform, so that the placement requirements of different fabrics can be met; meanwhile, the liftable placing platform can form efficient connection with downstream packaging or inspection equipment, so that the production efficiency is improved, and the rapid pressing device is arranged to trigger the rapid pressing mechanism at the moment of adsorption and release of the finished product adsorption carrying device; the transverse deviation caused by stacking and placing of the finished product cloth due to environmental airflow disturbance, electrostatic adsorption and equipment vibration is effectively blocked, and the stacking uniformity is greatly improved.

This application relates to a distributed building escape path correction method. The method includes: a regional controller monitoring communication status and switching to an isolated autonomous mode when communication is interrupted; collecting data for the region and generating a boundary state vector containing real-time risk values, risk trend prediction values, and environmental airflow vectors, and broadcasting this vector to neighboring regional controllers; calculating a migration impedance value based on feedback data, which includes a coupling effect penalty term calculated based on airflow vectors and estimated pedestrian flow; and generating a boundary breaker command to lock the boundary and correct the escape path when the migration impedance value meets the blocking condition. This application has the advantages of enabling autonomous coordination between regions when central dispatch is lost and effectively preventing secondary disasters caused by the spread of smoke with pedestrian flow.

An air conditioning assembly for an enclosure includes a lower vent housing having a pair of side panels that define airflow plenums to improve the ambient airflow through the unit so that the unit is more effectively cooled, and the efficiency of the unit is heightened. The unit draws ambient air into its side vents via the plenums, and further increases ambient airflow by drawing ambient air into its upper vents via an upper vent housing of the assembly. The unit is supported by a platform extending between the side panels and defining a trough for effectively collecting and removing liquids in the assembly. The platform and side panels are unitary to more readily manufacture and install the air conditioning assembly, and are installed within the enclosure such that the unit is also in the enclosure and not extending into the outside environment.

The utility model belongs to the technical field of roller anti -winding, especially a kind of roller anti -winding device, two anti -winding devices are symmetrically installed on pedestal and located in the lower part of roller, anti -winding device includes the mainboard for being fixed with pedestal and the inclined plate for preventing winding, the inclination angle of inclined plate is adapted to roller, to make inclined plate be located below roller when effectively cut off the direct contact path between fabric and roller roll;The first container is provided on the side, away from the base, of the main plate, the first container is provided with a strip-shaped opening along the length direction of the inclined plate, the inclined plate is pasted with a siphon cloth, the siphon cloth extends along the surface of the inclined plate and covers the outside thereof, compared with the traditional atomizer humidification mode, the device does not need external power supply and complex pipeline, simple structure, convenient maintenance, and the humidification process is stable and continuous, and is not disturbed by environmental airflow. The first container can be periodically replenished with water, making it easy to replace or clean the siphon cloth and ensuring stable and reliable long-term use.

The invention discloses an intelligent monitoring system based on a fire-fighting air respirator, and relates to the technical field of fire-fighting equipment. A data processing and core algorithm module; a control and execution module; a man-machine interaction and alarm module; a data management and communication module; a power supply and management module; the micro-environment airflow state around the mask of the wearer is sensed and quantitatively evaluated in real time, the potential pollutant invasion risk can be pre-judged, and air supply parameters are actively adjusted before the risk occurs; according to the feedforward control mechanism based on environmental perception, the mode that passive response is carried out only according to the pressure of a gas cylinder or the breathing state of a user in the past is changed; the breathing protection does not completely depend on the physical sealing integrity of the mask any more, a more stable and reliable breathing safety guarantee is provided for firefighters by actively maintaining an internal positive pressure environment adapting to external disturbance, and the possibility of protection failure caused by sudden environment change is reduced.

The invention discloses a multi-rotor unmanned aerial vehicle inclined lifting force device, and relates to the technical field of aircrafts, the device comprises a lifting force wing device and an unmanned aerial vehicle fixing device, the lifting force wing device comprises a frame connecting structure and a lifting force wing structure, the frame connecting structure is of a hollow design, and is used for connecting the unmanned aerial vehicle fixing device and the lifting force wing structure; through dynamic optimization of aerodynamic lift assistance and an intelligent regulation and control algorithm of a lift wing structure, rotor energy consumption is reduced, battery film auxiliary power supply is matched, the cruising ability is improved, environment airflow changes are captured in real time through a sensing data acquisition assembly, lift distribution and rotor rotating speed are rapidly adjusted through the algorithm, and the reliability of the system is improved. The stability of the fuselage is enhanced by combining the aerodynamic characteristics of the lift wings, the flight speed is increased, the wind resistance performance is optimized, rotor wing faults are detected through the fault response sub-module, emergency lift force distribution is triggered, the fuselage balance is maintained by means of the emergency lift force of the lift wings, and the air crash risk caused by the rotor wing faults is avoided.

The utility model belongs to the technical field of cigarette performance testing, and particularly relates to an isolation hood of a cigarette vacuum generator and a suction resistance and ventilation rate measuring device of the isolation hood. The isolation hood comprises a bottom plate, a first vertical plate, a sliding piece and a cover shell, wherein the first vertical plate is vertically fixed on the bottom plate; the sliding piece is in sliding connection with the first vertical plate in the vertical direction, and the sliding piece comprises a second vertical plate arranged side by side with the first vertical plate; the cover shell is tightly buckled on the second vertical plate, the cover shell is hinged to the vertical side edge of the second vertical plate, and the vacuum generator is fixedly arranged in a cavity formed by the cover shell and the second vertical plate. According to the isolation hood, the vacuum generator and the measurement assembly can be isolated, airflow disturbance is effectively reduced, the stability of environment airflow is guaranteed, and therefore the accuracy of suction resistance and ventilation rate measurement results is improved; the isolation cover can be opened in the horizontal direction and the vertical direction so that the vacuum generator can be maintained conveniently, and the application range of the vacuum generator is widened.

Systems and methods for separating an ambient air stream into a dry air stream and a humid air stream are described. An electric field is used to partition the ambient air stream from low humidity to high humidity. The low humidity portion of the gradient is separated has a dry air stream and the high humidity portion is separated as the humid air stream. Systems and methods for collecting water from an ambient air stream are also described, wherein humidified air is cooled to condense water therefrom. In both embodiments, operating parameters, such as electric field strength, the speed of the ambient air stream, and / or the cooling temperature, etc., may be controlled based on the humidity of the ambient air and / or the dry or humid air streams.

A method for removing carbon dioxide (CO2) from ambient air and related systems are disclosed. In an embodiment, the method includes (a) coating supports with a calcium hydroxide (Ca(OH)2) slurry to form a sorbent on the supports, (b) conveying the supports into an air contactor in a row of cassettes, each cassette supporting a set of the supports, and (c) generating an ambient airflow. In addition, the method includes (d) transporting the row along a path such that: for a first leg of the path, the ambient airflow is directed from a first end of the row to a second end of the row, and for a second leg of the path, the ambient airflow is directed from the second end of the row to the first end of the row. Further, the method includes (e) absorbing CO2 from the ambient airflow into the sorbent during (d).

The invention discloses a self-checking device, system and method of a sensor for satellite propulsion polarity test, the self-checking device comprises a base, a wind speed generator, an air duct cylinder and an air volume adjusting assembly, and an air outlet hole with adjustable aperture is formed in the middle of an air volume adjusting mechanism of the air volume adjusting assembly; a self-checking hole used for being connected with a sensor clamping device is formed in the air duct cylinder, the self-checking hole and the air outlet holes are arranged at intervals, the self-checking system comprises a self-checking device and self-checking equipment, and the self-checking equipment is provided with a power module, a comprehensive control module and control and processing software. The system and the method overcome the defects that self-inspection of the wind speed sensor is easily influenced by environmental airflow interference and the self-inspection condition is harsh, can quickly construct a self-inspection scene and complete self-inspection in a full-automatic manner, effectively reduce time cost, improve test accuracy and reliability, and are suitable for large-scale popularization and application. The method is suitable for self-inspection and health state inspection of the sensor for propulsion polarity testing in a satellite factory and a launching site stage before related testing work is carried out.

Described herein is a ventilation system for a building that includes an air source heat pump and an exhaust plenum system. The air source heat pump may include a compressor, a condenser, a reversing valve, and an evaporator. The exhaust plenum system is configured to mix building infrastructure exhaust airflow with an ambient airflow to provide an exhaust-ambient airflow mixture to the air source heat pump. The use of the exhaust-ambient airflow mixture improves the efficiency of the air source heat pump.

The application discloses a kind of self-checking device, system and method of sensor for satellite propulsion polarity test, the self-checking device includes base, wind speed generator, air duct cylinder, air volume adjusting assembly, the air volume adjusting mechanism of air volume adjusting assembly is formed with the air outlet hole of adjustable aperture, air duct cylinder is connected with the self-checking hole for sensor clamping fixture connection and is set apart with the self-checking hole and the air outlet hole, and the self-checking system includes self-checking device and self-checking equipment, and the self-checking equipment has power module, control module and control and processing software, the application overcomes the influence that wind speed sensor self-checking is susceptible to environmental airflow interference, and the limitation that self-checking condition is harsh, forms a kind of system and method capable of quickly constructing self-checking scene, and self-checking is completed fully automatically, effectively reduces time cost, improves test accuracy, reliability, and the application is suitable for satellite factory and launch site stage propulsion polarity test sensor to carry out relevant test work before self-checking and health status check.

The invention relates to the technical field of tents, in particular to a tent with a solar panel capable of adaptively tracking sunlight, which comprises a tent, a suspension support mechanism mounted outside the tent, and two groups of climbing stability augmentation mechanisms clamped on the suspension support mechanism, the power-assisted mechanisms are mounted on the two groups of climbing stability augmentation mechanisms; the light-gathering antifouling mechanisms are mounted on the power-assisted mechanisms; the suspension supporting mechanism comprises a fixed base, and a second sliding frame and a first sliding frame which are symmetrically distributed are installed in the fixed base. A suspension supporting mechanism is erected outside the tent, a motor and a gear are used for controlling the two sets of climbing stability augmentation mechanisms to ascend stably till the photovoltaic module turns over laterally and is vertically upward, sunlight can be gathered and mapped to the photovoltaic module through a mirror face of a concave face cover, and at the moment, the photovoltaic module turns over laterally and is vertically upward. The photovoltaic module protected by the concave face cover and the two side plates can be prevented from being polluted by dirt carried by environmental airflow, the photovoltaic module can be ensured to operate safely in severe weather, and the photoelectric conversion efficiency is further improved.

The utility model relates to the field of transformer heat dissipation protection, in particular to a transformer heat dissipation protection device. The utility model provides a heat dissipation protection device for a transformer. A transformer heat dissipation protection device comprises a first installation frame, a sliding rail, a locking piece, a heat dissipation plate, a radiator, a sealing block, a ventilation protection mechanism and the like. The left side and the right side of the first installation frame are shielded and protected to different degrees through the angle-adjustable protection plates, possible influencing objects can be blocked, the objects are prevented from entering the first installation frame and influencing the radiator, when environment airflow is large, the worm can be rotated by rotating the rotary knob, and the heat dissipation effect is improved. And meanwhile, due to the fact that the first mounting frame and the radiator are designed to be separated, the radiator can be more efficiently and conveniently overhauled, and the overhauling convenience is improved.