138results about How to "Reduce wind speed" patented technology

The invention discloses an AI-based intelligent energy management method and system for air conditioning equipment. The method comprises the following steps that indoor environment data are collected in real time through a sensor on the air conditioning equipment; cleaning, de-noising and normalizing the acquired environment data; collecting air conditioner setting preference data of the user; based on the collected data, reasoning and result output are conducted on operation of the air conditioner through an AI model in the edge computing device; according to the result output, an air conditioner control strategy adapting to the current environment and user requirements is generated; dynamically adjusting the operation mode of the air conditioner based on the real-time load and the power grid condition; the air conditioner control strategy is adjusted according to feedback data in the air conditioner operation process; according to the AI-based intelligent energy management method and system for the air conditioning equipment, a comfortable environment can be provided, efficient energy management can be achieved, the overall energy consumption is reduced, and the pressure on a power grid is reduced.

The invention relates to the technical field of photovoltaic sand control, and provides a comprehensive photovoltaic sand stabilization device and a sand stabilization method.The comprehensive photovoltaic sand stabilization device comprises two fixing bases, a protective net is installed between the two fixing bases, first threaded rods are installed on the inner sides of the fixing bases, and second motors are connected to the tail ends of the first threaded rods; a second threaded rod is installed on the outer side of the fixing base, and the tail end of the second threaded rod is connected with a first motor. The photovoltaic power generation mechanism is installed close to the water accumulation net, the photovoltaic panel can be overturned in the morning and evening, the front face of the overturned photovoltaic panel makes contact with the water accumulation net obliquely downwards, water molecules in air are condensed and attached to the photovoltaic panel and the water accumulation net through the water accumulation net at night, and the photovoltaic face of the photovoltaic panel is cleaned; dust raised by wind and sand in the daytime is prevented from influencing the generating capacity of the photovoltaic panel, meanwhile, water condensed by the photovoltaic power generation mechanism and the water accumulation net supplements water for growth of vegetation on the ground surface, and restoration of the vegetation in the desert area is facilitated.

The invention relates to the technical field of sensing data analysis, in particular to a situation sensing method and system based on an intelligent fan. The method comprises the following steps: obtaining human shape position change data of an intelligent fan user and human shape motion posture change data of the intelligent fan user, carrying out human shape motion interframe change identification analysis and Kalman filtering human shape tracking, and carrying out human shape motion range analysis at the same time; the dynamic change range of the human shape motion of the intelligent fan user is obtained; the intelligent sensing range of the intelligent fan is obtained, situation awareness cross judgment is carried out on the human shape motion dynamic change range of an intelligent fan user, and when it is determined that the intelligent fan user is in a close or away sensing state, a wind speed acceleration or deceleration control instruction is generated through response of the intelligent fan and acts on a built-in control system of the intelligent fan. The corresponding intelligent fan air speed automatic acceleration or deceleration work is executed; the method can focus on recognition and tracking of the whole human shape, and aims at optimizing the sensing state of the intelligent fan.

The present invention provides an electronic device for reducing wind noise and its application. The raw materials of the porous block material include zeolite, adhesive and dispersant. The present invention also provides an electronic device comprising the above-mentioned porous block material. The present invention further provides an electronic device for reducing wind noise, including a body, an arc cover and a PCB board, the two ends of the body are respectively connected to the PCB board and the arc cover, the body is provided with an inner sound channel along the central axis, the arc cover is provided with an outer sound channel, the outer sound channel is in a windmill-shaped structure as a whole, including a central cavity and a plurality of branch channels, the branch channels are radially arranged around the central cavity, and each branch channel is a streamlined arc structure. The present invention further provides the application of the above-mentioned electronic device in an electronic device with a microphone. The electronic device provided by the present invention can effectively reduce wind noise and significantly improve the call quality of communication equipment.

The herringbone snow and sand blocking wall structure comprises windward plates, leeward plates and a top end combination component, the windward plates and the leeward plates are connected through the top end combination component, the multiple windward plates and the multiple leeward plates are sequentially arranged in a staggered mode, and the windward plates and the leeward plates form an included angle structure with the upper ends close to each other and the lower ends separated from each other; the windward plate comprises a corrugated steel plate, the waveform direction of the corrugated steel plate is transverse wave arrangement, and the windward plate is close to one side of the windward direction; the leeward plate comprises a corrugated steel plate, and the waveform direction of the leeward plate is vertical. Through the geometric arrangement of the windward plate and the leeward plate and the matched design of the corrugation direction, the guiding effect of wind power is fully utilized, the vortex hedging effect is formed on the back face of the windward plate, reverse wind pressure is generated while the wind speed is remarkably reduced, the supporting capacity of the back face of the windward plate is enhanced, and the structural strength and material use are further optimized.

The invention provides a wind power plant power generation data prediction method and device based on space-time correlation. According to the historical actual power generation data of each wind driven generator in the wind power plant and the historical actual wind speed of each wind driven generator in the wind power plant, the wind driven generators in the wind power plant are divided into a plurality of wind driven generator clusters; and determining a reference wind driven generator in the wind driven generator cluster according to the historical actual power generation data of each wind driven generator in the wind driven generator cluster and the historical actual power generation total data of the wind driven generator cluster. And according to the historical actual power generation total data of the wind power plant, the current actual power generation total data of the wind power plant in the upwind direction of the wind power plant and the current actual power generation data of the reference wind driven generator, predicting future expected power generation total data of the wind power plant. Therefore, the accuracy of the predicted future expected power generation total data of the wind power plant can be higher.

The invention discloses a sand blocking and mist catching protection system and method for a desert area. The sand blocking and mist catching protection system comprises mist catching towers, shed-shaped sand blocking and mist catching barriers, sand fixing and afforestation covering plates and evaporated water collecting devices which are arranged in a first strip-shaped area, a second strip-shaped area, a third strip-shaped area and a fourth strip-shaped area correspondingly. The first strip-shaped area, the second strip-shaped area, the third strip-shaped area and the fourth strip-shaped area are sequentially arranged in the upwind direction or the peripheral area of a protected object in the prevailing wind direction, are parallel to one another and are perpendicular to the prevailing wind direction. The mist catching tower collects water vapor in airflow at a high position, meanwhile, the shed-shaped sand-blocking mist catching barrier collects water vapor in airflow at the middle-lower layer, the water vapor at different heights is caught, and the mist catching efficiency is improved. The mist catching tower and the shed-shaped sand-blocking mist catching barrier block a part of sand storm, and the sand-fixing afforestation covering plate fixes a part of quicksand, so that an evaporated water collecting device and a protection object in the downwind direction can be effectively protected, and sand storm erosion is avoided.

The application discloses a kind of for tantalum niobium tailings in tin metal recovery's synergistic treatment system, specifically related to metallurgical solid waste resource utilization technical field, acoustic-electricity perception pre-agglomeration module exports pre-agglomeration probability index according to pre-agglomeration threshold value;Heat resistance chromatography module exports the temperature field and fluidized void fraction distribution of suspected agglomeration area;Inhibiting ingredient self-adapting module calculates inhibitor addition rate according to distribution;Wind material decoupling adjustment module exports decoupled wind speed and feed rate set value according to addition rate and bed pressure drop;Chain negative feedback blocking module detects pressure drop deviation to generate feedback correction, superimposed to wind speed set value and reversely adjust feed rate set value, while used to update pre-agglomeration threshold value;The application realizes the online identification of agglomeration precursor, accurate danger area precision inhibiting and the closed-loop cooperation of wind material decoupling, inhibits the nonlinear deterioration of coking loss flow, makes tin recovery rate keep stable when tailings fluctuation, and reduces inhibitor consumption and manual intervention.

The utility model relates to an oil fume exhaust fan sound insulation device with an oil stain discharge function, which is arranged on the outer side of an oil fume exhaust fan and comprises a sound insulation and absorption cover, a flow guide elbow and a silencing device, and the oil fume exhaust fan, the flow guide elbow and the silencing device are sequentially arranged in the sound insulation and absorption cover along the wind direction; the sound insulation and absorption cover is provided with an air inlet and an air outlet, the air inlet end of the oil smoke exhaust fan penetrates through the air inlet of the sound insulation and absorption cover, the air outlet end of the silencing device is correspondingly communicated with the air outlet of the sound insulation and absorption cover, an air duct of the flow guide elbow is arranged in an arc shape, and an oil stain collection box is arranged on the lower side of the flow guide elbow. The device has the advantages of being good in structural stability, small in oil stain discharge amount, good in sound insulation and noise reduction effect and easy to install and maintain in the later period, the oil stain collecting box can be detached and cleaned, and regular cleaning and maintenance are convenient.

The invention relates to the technical field of chemical fiber melt spinning devices, and discloses an intelligent temperature control chemical fiber melt spinning device which comprises a melt spinning device body with a spinning nozzle, the melt spinning device body pressurizes chemical fiber melt under pressure to enable the chemical fiber melt to penetrate through the spinning nozzle to form filaments, a rectifying air duct with an up-down through hole is fixedly connected below the melt spinning device; the side edge of the rectifying air duct is provided with a flat air inlet nozzle for side air inlet, and the tail end of the flat air inlet nozzle is connected with an air pipe and used for feeding cooling air into the rectifying air duct and fully contacting with chemical fibers penetrating through the rectifying air duct for heat exchange after shunting, so that the chemical fibers are cooled and solidified. Through the structural design of the air pipe, the ventilation cylinder and the air cutting plate which are designed in the tangential direction, transverse supplied air is differentiated and pressed in along the air seepage holes, the transverse inertia kinetic energy of the air is effectively reduced, and in addition, the air is more uniform.

The utility model discloses a double-arc-extinguishing type multi-pole circuit breaker, which comprises a circuit breaker, an actuating mechanism is arranged in the middle of the circuit breaker, an L-pole moving contact assembly and an N-pole moving contact assembly are respectively arranged on two sides of the actuating mechanism, an L-pole arc-extinguishing chamber is arranged outside the L-pole moving contact assembly, an L-pole protective cover is arranged in the L-pole arc-extinguishing chamber, and an N-pole protective cover is arranged in the N-pole moving contact assembly. An N-pole arc extinguish chamber is arranged outside the N-pole moving contact assembly, an N-pole arc extinguish cover is arranged in the N-pole arc extinguish chamber, the L-pole arc extinguish chamber and the N-pole arc extinguish chamber are separated from each other through a partition plate, and guide rib sets connected with the partition plate are arranged on the sides, away from the executing mechanism, of the L-pole arc extinguish cover and the N-pole arc extinguish cover. The guide rib set comprises a plurality of guide ribs arranged at intervals, and guide channels allowing airflow to penetrate through are formed in the two sides of the guide ribs. According to the utility model, the arc extinguishing effect of the arc extinguishing chamber on the arc can be improved, the smoothness of discharging the arc gas out of the arc extinguishing chamber is improved, and the temperature of the arc extinguishing chamber is reduced.

The utility model provides a vertical air conditioner indoor unit and an air conditioner. The vertical air conditioner indoor unit comprises a vertically-arranged machine shell, a cross-flow wind wheel arranged in the heat exchange air duct and an axial-flow wind wheel arranged in the axial-flow air duct. A heat exchange air outlet extending in the vertical direction and an axial flow air outlet spaced from the heat exchange air outlet in the horizontal direction are formed in the machine shell. The axial flow air outlet is located in the top of the vertical shell wall of the machine shell. In the vertical direction, the bottom of the axial flow air outlet is flush with the middle of the heat exchange air outlet or located above the middle of the heat exchange air outlet. A heat exchange air duct connected with the heat exchange air outlet and an axial flow air duct connected with the axial flow air outlet are defined in the machine shell. And the cross-flow wind wheel is vertically arranged. In the horizontal direction, the wheel end face of the axial flow wind wheel is opposite to the axial flow air outlet. The problem that when a cross-flow fan is used for long-distance air supply, a user close to an air conditioner or a vertical air conditioner feels too strong air feeling is solved, and the purpose of improving user experience is achieved.

The utility model belongs to the technical field of dustproof equipment, and particularly relates to an air conditioner dustproof device which comprises an air conditioner hanging machine body, a rough-side hook-and-loop fastener is bonded to the surface of the front wall of the air conditioner hanging machine body, a hook-side hook-and-loop fastener is bonded to the rough-side hook-and-loop fastener, and a dustproof cover is fixedly connected to the surface of the lower wall of the hook-side hook-and-loop fastener. According to the air conditioner hanging machine, dust entering the air conditioner hanging machine body from an air opening can be effectively reduced through joint cooperation of the dustproof cover, the hook face hook-and-loop fastener and the loop face hook-and-loop fastener, an air conditioner can keep normal operation, and the air conditioner hanging machine is convenient to disassemble, assemble and use; most dust on the dustproof cover cannot fall on the ground, the ground can be kept clean, the air speed of the air conditioner can be effectively reduced through joint cooperation of the two installation blocks and the wind shield, a human body feels more comfortable, and the air conditioner is convenient to disassemble and can be quickly disassembled when not in use.

The utility model relates to the technical field of tunnel fan control equipment, in particular to an automatic control box which comprises a control mechanism and a supporting mechanism. The supporting mechanism is installed at the bottom of the control mechanism, the control mechanism further comprises an explosion-proof box, a control panel is installed on the bottom wall in the explosion-proof box, a PM sensor is installed on one side of the explosion-proof box, and a CO sensor is installed on the upper surface of the explosion-proof box; in the using process, the PM sensor and the CO sensor are used for detecting the PM2.5 content and the CO content in the air, when the PM2.5 content and the CO content are high, the draught fan is controlled, the air speed of the draught fan is automatically adjusted, the air speed is detected in cooperation with the air speed detection probe, the air speed of the draught fan is adjusted to be proper, when the PM2.5 content and the CO content are reduced, the air speed of the draught fan is reduced, and the air quality is improved. The energy-saving effect is achieved, harmful gas is exhausted in time, potential safety hazards are reduced, and control and use of the draught fan are facilitated.

The invention provides a buffer tank for biomass liquefaction, and relates to the technical field of renewable energy preparation, the buffer tank comprises a buffer tank body, a regulation and control support, an air inlet duct, an air control piece and a first electric actuator, an air outlet pipe is processed in the other end of the buffer tank body, the air inlet duct is processed at the top of the regulation and control support, and a first air outlet duct is processed at the bottom of the regulation and control support; a second air outlet channel is machined in one side of the regulation and control support; the air control piece comprises an air guide block and an air control block, and the top of one side of the air control block is connected with a control strip in a pin joint mode; according to the technical key points, a first electric actuator is used for controlling a control strip to drive an air control block to move towards the bottom in a first air outlet duct, so that part of air conveyed into the air inlet duct from an air inlet pipe flows out from a gap between an air guide block and the air control block, and the combustion efficiency of bio-oil on a combustion transverse bed can be improved while bio-oil on the combustion transverse bed is gradually reduced. And the air quantity conveyed into the air outlet pipe through the second air outlet duct and the transfer pipeline is reduced, so that the effect of accurately regulating and controlling the overall temperature of the combustion transverse bed is achieved.

The invention relates to a refrigerating system and refrigerating equipment. The refrigerating system comprises a heat dissipation device, and a water storage device, an atomization device and a condensation device which are communicated in sequence, wherein the water storage device is used for inputting a water source to the atomization device; the atomizing device is arranged on one side of the condensing device and used for atomizing a water source into water mist and spraying the water mist to the condensing device; the heat dissipation device is used for providing wind power for the condensing device for heat dissipation. By means of the arrangement, water mist and air are mixed to form humidifying cooling airflow, the humidifying cooling airflow can remarkably improve the surface heat exchange efficiency of the condensing device, the influence of the environment temperature on the heat dissipation effect of the condensing device is reduced, the heat dissipation effect of the condensing device is improved under the working condition of the condensing device with the same size, and therefore the refrigerating time of a refrigerating system is shortened, and the refrigerating efficiency is improved. The refrigeration efficiency is improved.

The utility model provides a printing additionally-installed blowing device, and belongs to the technical field of printing additionally-installed blowing, the printing additionally-installed blowing device comprises a ventilation pipeline, an adjustable structure, an air inlet structure, a heating structure and a filtering structure, the adjustable structure is arranged in the right side wall of the ventilation pipeline, and the air inlet structure is arranged on the right side wall of the ventilation pipeline. The adjustable structure comprises a rotating shaft, a sleeve and a wind shield, the rotating shaft penetrates through the right side wall of the ventilation pipeline and is rotationally connected with the ventilation pipeline, the sleeve is arranged on the outer side of the rotating shaft in a sleeving mode, the sleeve and the rotating shaft are coaxially and fixedly connected, the wind shield is arranged on the outer side wall of the sleeve, and the wind shield is arranged on the outer side wall of the sleeve. The wind shield is fixedly connected with the sleeve; the air inlet structure is arranged in the ventilation pipeline; the problem that in the process that the surface paper is glued by a glue machine, the surface paper is not dry after being glued by the glue machine, so that the surface paper is bubbled after being pressed can be solved.

The present invention relates to the field of large-volume pressure reduction systems, and specifically to an indirect air return system for a pressure reduction pool in extremely cold regions, comprising a protective shell and a supporting substrate, and also comprising: a pressure reduction mechanism, which is connected to the supporting substrate; and an air return component, which is respectively connected to the supporting substrate and the pressure reduction mechanism; wherein the air return component comprises a heating unit and a buffer unit, one side end of the heating unit is connected to the buffer unit, the buffer unit comprises a transition space, the transition space is located between the protective shell, the pressure reduction mechanism and the heating unit, and the transition space is connected to the pressure reduction mechanism. The indirect air return system for a pressure reduction pool in extremely cold regions of the present invention can reduce the length of an air return pipeline, and at the same time, can slow down the wind speed on the windward side of a hot water heating air return device, so that outdoor air is fully heated before entering the interior of the pressure reduction mechanism, thereby reducing the influence of cold air on the pressure reduction mechanism.

A rail vehicle air conditioning control system, method and device, comprising: a power supply, a main controller, a unit controller, a heating floor and a temperature protector; a unit controller is arranged between the main controller and the temperature protector; the temperature protector is arranged inside the heating floor; the heating floor, the temperature protector and the unit controller correspond one to one; the unit controller, the heating floor and the main controller are connected to the power supply. The rail vehicle air conditioning control system, method and device provided by the present invention achieve a comfortable temperature in the compartment through the cooperation of the heating floor and the air conditioner.

The utility model relates to the technical field of central air conditioners, and discloses an air cleaning device for a central air conditioning system, which comprises a mounting shell, connecting columns are fixedly connected to two sides of the mounting shell respectively, and linkage plates are attached to the surfaces of the connecting columns. According to the air cleaning device for the central air conditioning system, locking and limiting of a mounting screw rod are achieved through the threaded connection relation of an inner threaded sleeve and the mounting screw rod, a spring is controlled to contract on the side face of a connecting circular plate through a linkage plate, and meanwhile a damping rod on the side face of the linkage plate contracts together; the linkage plate can be controlled to move out of the surface of the mounting screw rod, then the limiting plate is taken down to replace the medium-efficiency filter, regular replacement of the medium-efficiency filter can be effectively achieved in the whole operation process, and the phenomena that meshes are blocked and the overall purification effect becomes poor due to long-time use of the medium-efficiency filter are avoided; and the overall replacement operation difficulty is low, and the practicability is higher.

The invention provides a wind-solar complementary cooperative controller for a wind-solar station and a use method, and the controller comprises a controller housing, a display screen is installed on the front side surface of the controller housing, a plurality of interfaces are installed on one side of the controller housing, and a main control board is installed in an inner cavity of the controller housing. A main control unit, a motor driving unit, a data transmission unit, a PWM rectifying unit, a solar panel control unit and a wireless transceiving unit are installed on the main control board, the input end of the data transmission unit is connected with a rotating speed acquisition module, a current acquisition module and a voltage acquisition module, and the output end of the data transmission unit is connected with the main control unit; the main control unit is connected with the wind driven generator through the motor driving unit, the wind driven generator is electrically connected with the storage battery pack, the PMW rectifying unit is connected with the main control unit and the storage battery pack, and the solar panel control unit is connected with the main control unit and the storage battery pack. The system can simultaneously control the wind driven generator and the solar cell panel to carry out safe and efficient intelligent charging on the storage battery, and the cooperative control efficiency is high.

The invention provides a feeding material anti-caking device for liquid crystal display screen glass production, belongs to the technical field of glass production, and is used for solving the problems of blockage or non-uniform feeding and low production efficiency in the feeding process of existing raw materials. Comprising a mounting plate and a rolling assembly, the rolling assembly comprises a first supporting plate, the first supporting plate is fixed to the upper portion of the mounting plate, a vibration box is obliquely fixed to the upper portion of the first supporting plate, a feeding hopper is fixed to the upper end of the vibration box, an L-shaped fixing plate is fixed to the interior of the vibration box, two telescopic rods are fixed to the interior of the vibration box, and an L-shaped extrusion plate is fixed to the ends of the two telescopic rods; a vibration motor is fixed above the L-shaped extrusion plate, a conveying assembly is arranged at the lower end of the vibration box, the end of the conveying assembly is connected with a smashing assembly, and a collecting assembly is arranged on the side face of the smashing assembly. Through cooperation of the grinding assembly, the conveying assembly and the smashing assembly, blockage or uneven feeding of raw materials in the feeding process can be avoided, and the production efficiency is improved.

The present invention provides a deflector wind ring, an axial flow fan and an air conditioning unit, wherein the deflector wind ring defines an axial direction, and the two ends of the axial direction are respectively defined as an air intake port for gas to enter the deflector wind ring and an air outlet port for gas to flow out of the deflector wind ring, and the deflector includes an inlet section, a middle section and an outlet section in sequence from the air intake port to the air outlet along the axial direction, and the middle section is provided with guide holes penetrating the wall thickness. The deflector wind ring, axial flow fan and air conditioning unit of the present invention change the conventional design concept that the inner surface of the existing deflector wind ring is usually a smooth and non-porous inner wall, and open guide holes in the middle section of the deflector wind ring, which can achieve the purpose of optimizing the airflow channel and reducing the wind noise of the airflow.

The utility model belongs to the technical field of paper protective film production, and particularly relates to rolling equipment for paper protective film production, which comprises a workbench, a wind-up roll is rotatably mounted in the workbench, one end of the wind-up roll penetrates through the workbench and extends to the outside, a first motor is fixedly mounted on one side of the workbench, and an output shaft of the first motor is coaxially connected with one end of the wind-up roll. A first pressing roller is rotationally installed in the workbench and located on one side of the winding roller, two sliding blocks are slidably installed in the workbench and located below the first pressing roller, a second pressing roller is rotationally installed between the two sliding blocks, and two raw material rollers are rotationally installed in the workbench and located on one side of the second pressing roller. When the whole device is used, the whole device can work on a thin paper protection film, the applicability of the whole device is improved, and meanwhile, the paper protection films with different thicknesses can be cooled by adjusting the air volume and the air outlet angle.

The invention discloses a novel lithium iron phosphate roasting device, and particularly relates to the technical field of battery positive electrode materials, the device comprises a lithium iron phosphate kiln, a stock bin and a heat exchanger, the inner part of the inner kiln is provided with a material lifting mechanism for improving the material heating time and speed; one end of the lithium iron phosphate kiln is provided with a piston material pushing device which enables materials to be conveyed in an integral pushing mode, through the design of the material lifting mechanism and the intermittent material lifting plates in the inner kiln, it is guaranteed that the materials move forwards in a spiral pulsation mode, and meanwhile the material contact area is increased; the staying time of materials in the kiln can be prolonged, the heating time and the heating speed of the materials are guaranteed, the structural stability of the high-temperature barrel kiln body and the movement mixing of the materials can be enhanced through the spiral belt type intermittent guide plates, the heat transfer efficiency is effectively improved, meanwhile, in the flowing process of gas in the barrel, the air speed of the wall face of the barrel is reduced, and raised dust is greatly reduced; and the probability that the material which is not fully heated escapes in a flying dust form is reduced.

The present invention discloses an air guide structure, an indoor air supply device and an air supply method. The air guide structure comprises a shell having a hollow air guide chamber therein; an air inlet structure arranged on a side wall of the shell for connecting the hollow air guide chamber with outdoor air; and an air outlet structure arranged on the same side as the air inlet structure for connecting the hollow air guide chamber with indoor air. The indoor air supply device provided by the present invention can blow the wind introduced from the outdoors toward the wall by adopting the above-mentioned air guide structure, thereby preventing the wind from blowing directly on the human body, and the wind speed is gentler, thereby improving the comfort of the air outlet of the indoor air supply device and enhancing the user experience.

The utility model discloses a blowing device, which relates to the field of household appliances, and is characterized in that the blowing device comprises a box body, an air duct and an air source, the box body at least comprises a mask, and the mask is provided with a first blowing port, a second blowing port and a third blowing port which are sequentially arranged; the air duct comprises an air blowing duct for conveying flowing air flow to the first air blowing opening and the third air blowing opening, and further comprises a branch air duct for conveying air flow to the second air blowing opening; the branch air duct is provided with at least two different inlets. The branch air channel is provided with at least two different inlets, and air entering from the different inlets of the branch air channel can be blown out towards the second air blowing opening in a centralized mode, so that centralized air outlet is achieved, and large-air-volume air outlet of the second air blowing opening is achieved. And moreover, through the first air blowing opening and the third air blowing opening which are sequentially formed in the two sides of the second air blowing opening, two-side air outlet is achieved, the user can freely switch multiple air blowing modes according to the requirements, and the user experience is effectively improved.

The utility model discloses a hot air hood capable of accelerating paper drying speed, which comprises a processing table, the processing table is parallel to the horizontal plane, an air hood main body is arranged above the processing table, two air inlets of the air hood main body are both communicated with a connecting air pipe, an electromagnetic valve is arranged on the connecting air pipe, and the air inlet of the air hood main body is communicated with an air outlet of the processing table. A plurality of air outlets are formed in the arc-shaped face, close to a machining table, of the fan cover body, the air outlets are evenly distributed, speed reducing mechanisms are fixedly arranged in the air outlets, and air speed sensors are arranged in the speed reducing mechanisms. The hot air drives the fan blades to rotate, so that the speed of the hot air is reduced, the fan blades rotate to drive the hot air to enter the space between the fan cover body and the processing table more uniformly, paper is heated more uniformly, and the drying rate of the paper is increased.

The utility model discloses a seedling culture device, which relates to the technical field of forestry and comprises an adjusting mechanism, a water spraying mechanism is arranged at the bottom end of the adjusting mechanism, a ventilation mechanism is arranged at the top end of the water spraying mechanism, a lighting deinsectization mechanism is arranged on the surface of the ventilation mechanism, and a seedling culture basin is arranged in the adjusting mechanism. And the adjusting mechanism comprises a fixing plate, the fixing plate is fixedly installed on the surface of the water spraying mechanism, a sliding rail is fixedly installed on the surface of the fixing plate, a sliding block is slidably connected to the surface of the sliding rail, and a clamping device is in threaded connection with the interior of the sliding block. A sapling is placed in the sapling pot, the sapling pot is placed in the groove, so that the sapling is stable and not prone to inclining, the two sides of the sapling are blocked through the fixing plate, the sapling is protected against damage, when the growth space of the sapling needs to be adjusted, the clamping device is screwed, the height of the sliding block on the sliding rail is adjusted according to the height of the sapling, and after the height is adjusted, the sapling is placed on the sapling pot. And the clamping device is screwed to fix the supporting plate.

The utility model discloses a device for improving the separation efficiency of a cyclone dust collector, which belongs to the technical field of cyclone dust collection, is integrally arranged at the bottom of a lower cone, is connected above a dust inlet of a dust discharging valve, and comprises a main body and a plurality of blades which are arranged on the outer wall of the main body and are used for reducing the rotational flow wind speed at the bottom of the lower cone. The device is arranged at the bottom of the cyclone dust collector, the blades on the outer wall of the device body play a role in disturbing high-speed wind along the bottom of the lower cone, the wind speed of the bottom of the lower cone of the cyclone dust collector can be reduced, dust deposited at the bottom of a lower limb is prevented from being raised along with the high-speed wind again, and the dust separation efficiency is improved.