Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

11416 results about "Air blower" patented technology

Multi-source data fusion modeling method and system in aeration process

The invention provides a multi-source data fusion modeling method and system in an aeration process, and is applied to the field of intelligent aeration control in sewage treatment. The method comprises the steps that multi-source time sequence data such as dissolved oxygen, turbidity, flow, temperature, power and pool bottom pressure pulsation signals are collected, dissolved oxygen response lag is calculated through cross-correlation analysis with power change as the reference, time sequence alignment is carried out, and a dissolved oxygen reference interval is predicted by utilizing calibration data in combination with a physical constraint LSTM model; performing spectral analysis on the pressure pulsation signal to extract a gas-liquid coupling characteristic value, and generating a cooperative regulation instruction of the frequency of the blower and the rotating speed of the stirrer based on the information; by means of the scheme, control oscillation caused by lag of the dissolved oxygen sensor can be effectively overcome, online monitoring of bubble form distribution is achieved, the gas-liquid mass transfer efficiency is improved, invalid aeration is avoided, and system energy consumption is remarkably reduced on the premise that stable effluent quality is guaranteed.
Owner:GUANGZHOU WATER ENVIRONMENTAL PROTECTION TECH CO LTD

Sewage treatment aeration control system and method based on multi-parameter collaborative optimization

The invention provides a sewage treatment aeration control system and method based on multi-parameter collaborative optimization. The method comprises the following steps: acquiring multi-sensor data of COD (Chemical Oxygen Demand), BOD5 (Biochemical Oxygen Demand), DO (Dissolved Oxygen Demand), ammonia nitrogen, ORP (Oxidation Reduction Potential), pH (Potential of Hydrogen), water inlet flow and sludge concentration of wastewater in an aeration tank by utilizing a multi-parameter sensor module; according to the dynamic correction oxygen mass transfer coefficient and the feedforward parameter, establishing a relationship between the water inlet load and aeration; calculating the air volume of an air blower and the fine adjustment value of the opening degree of a butterfly valve through a PID control algorithm and feedback parameters, and correcting the aeration quantity to obtain a total air volume target value; and adjusting the opening degree and the rotating speed of a guide vane of the air blower according to the self-adaptive PID control parameters and the corrected total air volume target value by utilizing a self-adaptive PID controller, and adjusting the opening degree of a butterfly valve according to a gradient butterfly valve adjusting strategy. The output of the air blower is optimized by adopting self-adaptive PID, and the opening degree of the butterfly valve of each biological tank is dynamically adjusted through a gradient valve adjusting strategy, so that the accurate control of the aeration rate is realized; the sewage treatment effect is ensured.
Owner:SUN YAT SEN UNIV

Blower for a fuel cell array

A blower (1) for a fuel cell assembly for recirculating a gas mixture used for operating the fuel cell assembly is equipped with a drive motor (7, 8, 9) comprising a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9). An annular channel (10) is provided radially between the rotor (9) and the stator (8) for conveying the gas mixture from an inlet side to an outlet side of the annular channel (10). A blower impeller (5) coupled to the motor shaft (7) is provided in the region of the outlet side of the annular channel (10) to convey the gas mixture from the inlet side to the outlet side of the annular channel (10) when rotating. Furthermore, a flow guide device (14) is provided to impart a circumferential swirl to the gas mixture entering the annular channel (10).The annular channel (10) is bounded by an assembly consisting of an outer wall (16; 21) and an inner wall (17), wherein the flow guide device (14) is provided on the inlet side between the outer wall (16; 21) and the inner wall (17).
Owner:ZF CV SYST GLOBAL GMBH

Air blower based on magnetic and air combination axial force balance and control method thereof

The invention relates to an air blower based on magnetic and gas combination axial force balance and a control method of the air blower, and belongs to the technical field of axial force regulation and control of air blowers. An axial air suspension bearing and an axial magnetic bearing are arranged in a main machine of the air blower, the axial magnetic bearing is connected with a magnetic bearing controller, and the magnetic bearing controller controls the axial position of a rotor by controlling the current of the axial magnetic bearing; an axial displacement sensor and a radial displacement sensor are arranged to detect the displacement of the rotor; and the main controller is used for controlling the starting and stopping of the axial magnetic bearing and the main machine based on the axial displacement and the radial displacement of the rotor, and sending out early warning. According to the magnetic and air combined axial force balance device, the axial magnetic bearing is used for providing active control force, the air bearing is used for providing passive support, the stability and reliability of a system are improved, and an important protection effect is achieved on core parts of an air blower.
Owner:SHANDONG ZHANGQIU HUADONG BLOWER

Outdoor unit for air conditioning system

To provide an outdoor unit for an air conditioning system for reducing workload in arranging the outdoor unit even when the size or the weight of the outdoor unit for the air conditioning system is increased, while enabling good arrangement also in a space having a small installation area or in a complicated or constrained space.SOLUTION: The outdoor unit for the air conditioning system includes: a first unit having a first casing storing part for housing part of components including a heat exchanger and an air fan out of a structural component group including a compressor for compressing refrigerant, the heat exchanger for making heat exchange of the refrigerant with outside air, and the air fan for blowing outside air to the heat exchanger; and a second unit having a second casing for housing the remaining component including the compressor of the structural component group. The first casing and the second casing are constructed to be freely joined to and separated from each other. The outdoor unit is driven both in a joined state in which the first casing and the second casing are joined to each other and in a separated state in which the first casing and the second casing are separated from each other.SELECTED DRAWING: Figure 1
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Waist hanging fan

A waist hanging fan is provided, which includes an outer shell and a blowing component. The blowing component includes an inner wind duct shell, two ends of the inner wind duct shell are provided with an air inlet end and an air outlet end; an air blower provided in the inner wind duct shell; and a wind guide cover. The wind guide cover is circular. A lower end of the wind guide cover is provided in the outer shell and is sleeved on an outer side of the inner wind duct shell. An outer wall of the lower end of the wind guide cover is provided with a clamping protrusion, a wall of the outer shell or inner wind duct shell is provided with at least two clamping grooves. The present disclosure has the advantage that it is easier for wind to blow onto a user's body.
Owner:ZHOU ZHENYU

Roots blower shell assembly with countercurrent cooling flow adjustable device

The utility model provides a Roots blower casing assembly with a countercurrent cooling flow adjustable device, which is provided with an outer casing, an exhaust pipeline is fixedly arranged at the lower end of the outer casing, an air inlet is arranged at the top end of the outer casing, and an air outlet is arranged at the bottom end of the outer casing. Counter-flow cooling holes are formed in the positions, close to the left side and the right side of the air outlet, of the lower end of the outer shell correspondingly, the two sides of each counter-flow cooling hole communicate with an inner cavity of the shell and the exhaust pipeline correspondingly, and a counter-flow air inflow adjusting block assembly is fixedly arranged in each counter-flow cooling hole and comprises a counter-flow air inflow adjusting block. The countercurrent air inflow adjusting block is located on the inner wall of the countercurrent cooling hole. The Roots blower solves the technical problems that when an existing Roots blower operates for a long time, the temperature in a machine shell of the Roots blower can be obviously increased, and especially the position, close to an air outlet, in the machine shell is prone to gas accumulation, so that the temperature of the area is too high. The Roots blower can be widely applied to Roots blowers.
Owner:SHANDONG ZHANGQIU BLOWER

Vehicle interior laser cutting machine tool

The invention provides a vehicle interior laser cutting machine tool, and relates to the technical field of laser cutting machine tools, the vehicle interior laser cutting machine tool comprises a cutting table and a laser cutting head, the middle of the cutting table is hollow, a drawer type waste tray is movably inserted in the cutting table, one end of the cutting table is fixedly provided with a dust collector, and the other end of the cutting table is fixedly provided with an air blowing pump; shunting seats are fixedly mounted on the two sides of the cutting table, a plurality of dust collection holes are formed in the two side walls in the cutting table at equal intervals, cavities used for collecting dust are formed in the two side walls in the cutting table, and the output end of the dust collector is fixedly communicated with the two cavities in the cutting table; the adjusting assembly is installed at the top of the cutting table and used for adjusting the position of the laser cutting head, and the bearing sets are installed on the cutting table at equal intervals and used for containing the vehicle interior trim panel. According to the laser cutting machine tool, the sealing windshield is driven to be opened and closed through the rollers in the adjusting assembly, the purpose of air duct follow-up switching is achieved, and the laser cutting machine tool has the excellent cleaning capacity for kerfs of a to-be-cut piece.
Owner:JIANGSU LICHI CNC MASCH TOOL MFG CO LTD

Pretreatment equipment for processing LCD (Liquid Crystal Display) glass substrate

The invention discloses pretreatment equipment for LCD (liquid crystal display) glass substrate processing, which comprises a roller conveyor, a cleaning device and a drying device, the cleaning mechanism comprises a spraying pipe arranged in the isolation hood, and air knives are arranged on the two sides of the spraying pipe in an inwards inclined mode respectively; the water collecting and draining tank is arranged on the lower side of the roller conveyor on the lower side of the isolation hood; the demisting mechanism comprises an adsorption cotton roller rotationally mounted on the inner side of the air knife, and the air knife is provided with a guide groove for extruding and scraping the adsorption cotton roller; the drying device comprises a drying chamber; the air inlet mechanism comprises an air blower, the air inlet end of the air blower is connected to the corresponding air distribution pipe, a connecting pipe is rotationally installed in the air distribution pipe, a cylindrical filter element is fixedly connected to the connecting pipe, and an impeller of the air blower and the connecting pipe are in transmission connection to the output shaft ends of the corresponding driving motors respectively. The LCD glass substrate cleaning and drying device can effectively ensure the cleaning effect and the drying effect on the LCD glass substrate.
Owner:FUJIAN XIENKAI ELECTRONICS CO LTD

Energy-saving air blower for roasting furnace

The invention relates to the technical field of air blowers, in particular to an energy-saving air blower for a roasting furnace, which comprises a shell and a driving frame rotationally arranged in the shell, a plurality of impeller blades are arranged on the driving frame, a driving disc is arranged on the driving frame, and a connecting rod assembly is arranged on the driving disc; an air inlet pipe is arranged on the shell; a fixing disc is arranged on the air inlet pipe, an adjusting mechanism is arranged on the fixing disc, the adjusting mechanism comprises a worm gear and a worm, angle adjustment is achieved on impeller blades, the air volume adjusting function is directly integrated in an impeller area, and indirect influences of adjustment of a traditional diffuser on the air volume are avoided; and the self-locking characteristic of the worm gear and the worm is utilized to ensure that the adjusted impeller blade angle does not deviate under the influence of vibration or external force, and the stability is enhanced. And the driving disc can be driven by the adjusting mechanism in the process of rotating along with the driving frame. The purposes of optimizing an airflow path, reducing energy loss and improving the overall efficiency of the air blower are achieved through angle adjustment of the impeller blades.
Owner:HENAN JINLI GOLD ZINC CO LTD

Carbonization system

The carbonization system comprises a heat energy furnace and at least one carbonization box body, a circulating hot air outlet of the heat energy furnace is communicated with a first main connecting pipe, one air outlet of the first main connecting pipe is communicated with a first main air inlet pipe of the carbonization box body through a control valve, and the other air outlet of the first main connecting pipe is communicated with a second main air inlet pipe of the carbonization box body through a control valve. The gas outlet end of a main gas outlet pipe of the carbonization box body is communicated with one gas inlet of a second main connecting pipe through a control valve, a gas outlet of the second main connecting pipe is communicated with the gas inlet end of a first ash remover, and the gas outlet end of the first ash remover is communicated with one end of a first gas return pipe; the other end of the first air return pipe is communicated with an air inlet of an air blower communicated with an air return port of the heat energy furnace; one heat energy furnace can provide heat for a plurality of carbonization box bodies, the utilization rate is high, carbon dioxide waste gas generated by the heat energy furnace and steam generated by the steam cylinder at the bottom can be used for carbonizing materials in the carbonization box bodies, the utilization rate is improved, the production cost is greatly reduced, and the use effect is good.
Owner:ZHEJIANG CARBON VALLEY MACHINERY CO LTD

Air cleaner

Disclosed is an air cleaner. The air cleaner includes a case including a suction port disposed on a peripheral surface of the case, an air cleaning module including a blower fan disposed in the case and a filter configured to remove foreign matter from air introduced through the suction port, and a booster module disposed above the air cleaning module. The booster module including a head cover, a discharge port disposed inside the head cover, the discharge port including a ring-shaped inner grille having a central cavity, a display panel disposed in front of the inner grille, a front drive part connected to the display panel through the central cavity of the inner grille, and a first motor configured to move the display panel in a first direction.
Owner:LG ELECTRONICS INC

Bioreactor aeration self-adaptive control method and system based on machine learning

The invention provides a bioreactor aeration self-adaptive control method and system based on machine learning, and the method comprises the steps: collecting the water inlet flow, ammonia nitrogen concentration, dissolved oxygen concentration, water temperature and chemical oxygen demand data of a bioreactor in real time through a sensor, and carrying out the water balance verification and the Kalman filtering pretreatment containing a water temperature compensation item; generating an aeration instruction by adopting multi-model collaboration; outputting a reference aeration rate by a deep reinforcement learning DRL model; the self-adaptive PID controller dynamically adjusts the proportionality coefficient according to the dissolved oxygen deviation and calculates the correction amount; and the LSTM network generates a fusion weight, and combines the seasonal compensation factor and the safety coefficient to synthesize the final aeration rate. The system passes mutation rate constraint and nitrification efficiency verification, an ASM1 model is triggered to recheck when the deviation exceeds the standard, and after passing, an air blower with the precision of + / -2% executes an instruction and performs closed-loop feedback in a period smaller than or equal to 10 seconds. After the method is implemented, the aeration energy consumption is reduced to 0.38 kWh / m, the effluent ammonia nitrogen standard reaching rate is improved to 98.5%, the dissolved oxygen fluctuation range is reduced to + / -0.3 mg / L, and the impact load response time is shortened to be within 15 minutes.
Owner:AOLIU (SHENZHEN) TECH CO LTD

Air purification filter performance detection and verification device

The utility model provides an air purification filter performance detection and verification device, including a detection component, which includes a bottom plate, a mixing box, a first sealing sleeve, a feeding pipe, a blower, a groove, and a screw. The utility model places the air purification filter in the first sealing sleeve, starts the drive motor to drive the connecting block to move through the screw, and the connecting block drives the second sealing sleeve to move through the connecting box, and the air purification filter is fixed and sealed by the first sealing sleeve and the second sealing sleeve, and dust is added to the mixing box through the feeding pipe. The blower moves the first sealing sleeve of the dust in the mixing box to the inside of the air purification filter, and then sprays it into the dust storage box along the air outlet of the air purification filter through the second sealing sleeve, the connecting pipe and the hose. The dust sensor can give the concentration of the dust test to the connecting pipe, and transmit the data to the processor for processing. After processing, the data is displayed through the display screen, and the operation is simple and convenient.
Owner:SUZHOU IND PARK ANZEWEN ENVIRONMENTAL PROTECTION TECH

Motor, hard disk drive device, blower, and method for manufacturing motor

A motor includes a stator core including a stacked body of electromagnetic steel plates, a surface of the stacked body is covered with a coating film, and the coating film is an epoxy resin-containing electrodeposition coating film subjected to overbaking.
Owner:MINEBEAMITSUMI INC

Fermentation device

A fermentation device, comprising a fermentation device body (1) and a blower (2), wherein the blower (2) is embedded in the top of the front face of the fermentation device body; a filter box (3) is fixedly connected to the top of the front face of the fermentation device body (1); a filter plate (4) is provided on the front face of the filter box (3); the surface of the filter plate (4) has a sealing assembly (5) sleeved thereon; and a pressing plate (6) is provided on the front face of the filter box (3). By means of the provision of the filter box (3) and the filter plate (4), when a user uses the blower (2) to draw oxygen from the outside air into the fermentation device body (1), the filter plate (4) can be used to filter out foreign matter such as dust present in the air, preventing the foreign matter such as dust from entering inside the fermentation device body (1), thereby solving the problem of dust and the other impurities in the air easily entering inside the fermentation device and subsequently affecting fermentation quality due to the lack of a filter structure for intake air when using the blower (2) to draw oxygen from the air into the fermentation device, achieving the effect of facilitating filtration.
Owner:GANSU AGRI UNIV

Air conditioning system, air conditioning control method and vehicle

The invention relates to an air conditioner system, an air conditioner control method and a vehicle, and belongs to the technical field of air conditioner control. Air enters the air conditioning system through the air inlet duct, the main air duct is communicated with the air inlet duct and communicated to an air outlet unit of the air conditioning system, the air blower is arranged in the air blower duct, and the heat dissipation duct is arranged at the rear end of the air blower duct. When the temperature of the air blower rises and reaches a preset condition, the controller controls the heat dissipation air channel to communicate with the outside of the air conditioning system. The air conditioning system can be used for a vehicle. By adding the heat dissipation air duct, the air blower temperature detection strategy is designed. The air conditioning system and the control method thereof have the effects of improving the working efficiency of the air conditioning system and reducing the energy consumption of the air conditioning system.
Owner:GREAT WALL MOTOR CO LTD

System and method for activating deep raffinate injection based on ore placement

The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and / or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the comparing; and changing each of the plurality of parameters from the forecast data to the actual data to determine a contribution to the deviations for each of the plurality of parameters.
Owner:FREEPORT MCMORAN INC

Noise-reducing air passage device and its components for use in ventilator systems

A noise-reducing air passage device and its components for use in ventilator systems, including a housing with at least one inlet, at least one outlet, an inner wall, and an outer wall. The space enclosed by the inner wall of the housing forms a gas passage including at least one chamber to provide a space for gas accumulation and flow. A blower, the core component to provide positive pressure gas to the device, is secured within one of the at least one chamber. The gas passage also includes a ventilation component to divide the gas and streamline turbulent airflow. The ventilation component is among the noise-reducing components, which also include a support component to provide support and damp vibrations for the blower and an inlet component provided at the inlet.
Owner:WALLENBERG UNION LLC

Air blowing and suction integrated fan and control method thereof

The invention discloses an air blowing and suction integrated fan and a control method thereof, and relates to the technical field of fans. The fan comprises fan blades, a shell, a control motor and a ventilation baffle. The control motor is in control connection with the ventilation baffle, and the control motor is used for switching air blowing and suction modes of the fan by changing the angle of the ventilation baffle; an air suction opening and an air blowing opening are formed in the shell; the exhaust inlet and the blow-off nozzle are blocked and separated by a clapboard; the shell and the ventilation baffle plate divide the air suction opening into an inner air suction opening and an outer air suction opening; the air blowing opening is divided into an inner air blowing opening and an outer air blowing opening through the shell and the ventilation baffle. The inner air suction opening and the inner air blowing opening are communicated with an automobile seat ventilation system; the outer air suction opening and the outer air blowing opening are communicated with the outside atmosphere; the fan circuit module comprises a fan interface circuit sub-module, a voltage reduction sub-module, a PWM sub-module, an overvoltage protection sub-module, a fan driving sub-module, a control motor driving sub-module, an MCU sub-module and a fan driving feedback sub-module. Switching of the air blowing mode and the air suction mode of the fan can be achieved.
Owner:HOMPOR TSINGXIAN INC

Spray-cleaning machine for metal parts

PCT designated stage expiredWO2025138297A1Cleaning using liquidsWastewaterAir blower
A spray-cleaning machine for metal parts, the spray-cleaning machine comprising a bottom plate (1), wherein a first stand (2), a second stand (3), a clean water tank (5), a water collection tank (6), a waste water tank (7), a first water pump (15) and a second water pump (16) are provided on the bottom plate (1); a transmission assembly (4), a first bracket (8), a telescopic rod (9), a second bracket (10), a first spray pipe (11), a fixing plate (12), a second spray pipe (13) and a U-shaped frame (14) are provided on the first stand (2) and the second stand (3); a first connecting pipe (17) is provided at a suction end of the first water pump (15), and a first drain pipe (18) is provided at a discharge end of the first water pump (15); a second connecting pipe (19) is provided at a suction end of the second water pump (16), and a second drain pipe (20) is provided at a discharge end of the second water pump (16); the first spray pipe (11) and the second spray pipe (13) are each provided with a spray head (21) at the bottom; a cleaning assembly (22) is provided on the fixing plate (12); and a hot air blower (23) is provided on the U-shaped frame (14). The spray-cleaning machine for metal parts has a high cleaning efficiency and a good cleaning effect; water can be recycled during the cleaning process, thus saving water; and the metal parts can be dried, which prevents residual water stains that affect the use of the metal parts.
Owner:SHANGHAI YONGTAI AUTOMOBILE PARTS CO LTD

Positive airway pressure device

PendingUS20250170350A1Pump componentsRespiratory masksAcoustic foamPositive airway pressure device
A body-worn PAP system providing proper mask fitment during body movement, reduced leakage, and elimination of a need for a connecting hose to the blower unit, and a PAP blower adapted for use in a PAP system with a compact noise reduction system that does not utilize acoustic foams in the airflow path.
Owner:HOFFMANN LESLIE C

High-heat-dissipation dry-type transformer

The invention discloses a high-heat-dissipation dry-type transformer. The high-heat-dissipation dry-type transformer comprises a transformer body and a supporting bottom block, wherein the supporting bottom block is used for supporting and installing the transformer body; the air guide assembly is detachably installed above the supporting bottom block and used for feeding air into the transformer body so as to accelerate air flowing; the diffusion assembly is arranged on the transformer body and used for diffusing and changing the area and direction of air supplied by the air guide assembly, and the air guide assembly can guide the air output by the air blower into the transformer body to form forced convective circulation; air entering the transformer body diffuses the coverage area range of the air through the diffusion assembly, the heat dissipation capacity of the winding and the iron core is further improved, meanwhile, the vertically-entering air is adjusted to be in a spiral rising state, the standing time of the air flow in the transformer body is prolonged through the centrifugal effect, and the heat dissipation efficiency is improved. Meanwhile, the contact area range with the winding and the iron core is increased, and the heat exchange efficiency is enhanced.
Owner:湖南泽楠智能科技有限公司

Crushing machine of raw material for preparing wood shaving artificial board

The invention relates to a crushing machine of raw material for preparing a wood shaving artificial board. The machine comprises a box body, a driving device, an air blower, a crushing device, an auxiliary fixing device and a feeding device, wherein the driving device is installed on the front side of the box body, the air blower is installed at the lower end inside the box body, the crushing device is installed in the middle of the box body, the crushing device is located at the upper end of the air blower, the auxiliary fixing device is installed at the upper end of the box body, and the feeding device is installed at the right end of the box body. The crushing machine of the raw material for preparing the wood shaving artificial board can solve the problems that when existing wood shaving machining equipment is used for cutting treatment, the number of cutting tools is small, the cuttings generated through cutting treatment are large in size, the cutting tools are prone to be damaged and are complicated to replace, the wood material is directly cut and machined without limiting and fixing, severe shaking, splashing and even flying are generated in the wood material machining process, so that potential safety hazards and the like are generated in the operation process are solved.
Owner:河北盛奥松木业有限公司

Spiral steel pipe weld defect detection device applied to X-ray detection

The invention discloses a spiral steel pipe weld defect detection device applied to X-ray detection, and relates to the field of steel pipe weld detection, the spiral steel pipe weld defect detection device comprises a base and a movable platform mounted at the upper end of the base, and the upper end of the base is provided with a steel pipe; a stirring roller and a lifting roller are rotationally installed at the upper end of the movable platform and located below the steel pipe fitting. According to the spiral steel pipe welding seam defect detection device applied to X-ray detection, high-pressure wind power is transmitted to the flow dividing pipeline through the pressurizing air outlet by the air blower, and the transmitted high-pressure air carries pressure to penetrate through an opening gap in the surface of the lifting roller to impact on the surface of a steel pipe; the cleaning brush at the upper end is driven to move back and forth in a reciprocating manner in cooperation with limiting of a movable plate and a limiting rod, so that surface residual impurities generated by contact of a pressurizing air outlet and a steel pipe fitting are subjected to auxiliary guiding and removing work, and flaw detection can be more accurate.
Owner:TIANJIN YOUFA PIPELINE & TECH CO LTD

Blower and / or vacuum

A handheld blower and / or vacuum has a housing base body with a main flow duct in which a fan is arranged and through which main air flow flows when the blower is in operation. The housing has a handle having a cooling air duct that extends from an inlet opening on the main flow duct via a holding section of the handle up to an outlet opening. The inlet opening is assigned to a first end of the handle. When the blower is in operation, cooling air flow flows from the inlet opening of the handle to the outlet opening of the cooling air duct. An electronic structural unit is arranged in the handle in such a way that this electronic structural unit is cooled by the cooling air flow when the blower is in operation.
Owner:ANDREAS STIHL AG & CO KG

Seat ventilation device for vehicles

A seat ventilation device for vehicles which is configured to perform both an air cleaning function and a seat ventilation function, and is operated to perform one selected function. The seat ventilation device includes a base duct mounted in a seat and having an indoor outlet configured to discharge air to an interior of a vehicle, a blower assembled with the base duct, configured to intake air in the interior of the vehicle and selectively connected to the indoor outlet, a cover duct mounted on the base duct and having a seat outlet selectively connected to the blower so as to discharge air to the seat, an air cleaning module mounted on the blower so as to filter the air taken in through the blower, and an opening and closing door located in the cover duct and configured to open selectively either the seat outlet or the indoor outlet.
Owner:HYUNDAI MOTOR CO LTD +2

Gas passage for use in a PAP device

A gas passage for use in a PAP device configured to provide pressurized gas to a patient, including a passage casing with an air intake and an air outlet. The casing is configured to encompass and accommodate internal components and forms a chamber inside, where the chamber is configured to facilitate the flow and accumulation of gas. A blower is provided within the chamber to pressurize and output the gas. The internal components of the noise-reducing gas passage include noise reduction components configured to attenuate the noise of the gas entering the noise-reducing gas passage. These noise reduction components include a ventilation component, an intake pipe, and a flexible component at the air intake. Additionally, this disclosure specifies scientific and precise data requirements for the internal structure and positioning of the blower and noise-reducing components within the noise-reducing gas passage to achieve effective and excellent noise reduction.
Owner:WALLENBERG UNION LLC

Image data processing method and system for digital management of environmental protection equipment

The invention relates to the technical field of image processing, in particular to an image data processing method and system for digital management of environmental protection equipment, and the method comprises the steps: collecting a real-time image of an aeration area through a waterproof camera disposed above an aeration tank, detecting the definition of the camera regularly, and carrying out the cleaning when the definition is lower than a preset value; a self-adaptive Retinex algorithm is adopted for the real-time image of the aeration area to eliminate water surface reflection interference, noise caused by water turbidity is reduced through a multi-frame weighted average method, and a processed image is obtained; segmenting a bubble region in the image based on a U-Net network and calculating a bubble distribution parameter; comparing the bubble distribution parameter with a bubble distribution threshold value, and generating an aeration rate optimization instruction according to average dissolved oxygen data obtained by a dissolved oxygen sensor; and controlling the air blower based on the aeration rate optimization instruction. The power of the air blower can be better adjusted according to the bubble condition of the aeration tank, so that more energy is saved.
Owner:CHONGQING QINGSHUO ENVIRONMENTAL TECH CO LTD

Sewage treatment aeration control method and system based on deviation compensation hybrid model

The invention provides a sewage treatment aeration control method and system based on a deviation compensation hybrid model, and relates to the technical field of intelligent optimization control of a sewage treatment process, a mechanism model driving layer in the hybrid model outputs a benchmark predicted value of effluent quality, and a process deviation compensation layer performs uncertain quantitative estimation on the benchmark predicted value, so that an aeration control result is obtained. Performing process deviation compensation on the reference predicted value; establishing an aeration optimization objective function by taking the minimum aeration rate as an optimization objective, solving to obtain the optimal aeration rate, outputting a control signal to an air blower according to the optimal aeration rate so as to adjust the rotating speed of the air blower or the opening degree of a valve, change the air supply rate to a reaction tank, and simultaneously, collecting inlet water quality data and operation parameters of an aeration system in real time; and updating the optimal aeration rate, and updating the control signal to form a feedback closed loop. Highly intelligent, stable, reliable, energy-saving and efficient aeration control can be realized, and the sewage treatment plant is ensured to stably realize that the effluent quality reaches the standard and the energy consumption is reduced to the greatest extent under complex working conditions.
Owner:HUAZHONG UNIV OF SCI & TECH