176results about How to "Reduce air volume" patented technology

The ignition structure comprises an ignition needle and a discharge column, the lower surface of the discharge column faces the discharge end of the ignition needle, the lower surface of the discharge column comprises a plurality of conductive tips, and the distances from the conductive tips to the discharge end of the ignition needle are equal. The plurality of conductive tips are arranged on the lower surface of the discharge column, the greasy dirt can be shared, the greasy dirt is prevented from gathering and completely covering the lower surface of the discharge column, the greasy dirt gathered at the conductive tips easily drips under the gravity action of the greasy dirt, and therefore gathering of the greasy dirt on the lower surface of the discharge column is further reduced. The distances between the multiple conductive tips and the discharge end of the ignition needle are equal, all the conductive tips can effectively receive discharge of the ignition needle, when part of the conductive tips are covered with oil stains, other conductive tips can effectively receive discharge of the discharge end of the ignition needle, and therefore the ignition success rate is increased.

The invention provides a membrane separation oxygen production device capable of simultaneously producing medical oxygen and oxygen-enriched air, the device comprises a common oxygen production main machine, a membrane separation purification system and a pure oxygen production main machine, when the common oxygen production main machine needs to be purged, oxygen-enriched nitrogen, high-concentration oxygen-enriched air and waste gas can be utilized to purge an adsorption tower. The system has the advantages that the oxygen concentration can be automatically switched according to the requirements of a hospital, and medical oxygen and oxygen-enriched air are provided for the hospital at the same time or are independently provided for any one of the medical oxygen and the oxygen-enriched air; the membrane separation oxygen production technology is adopted, high-concentration waste gas generated during membrane separation medical oxygen production is used in the production process of oxygen-enriched air, the air-oxygen ratio is optimized, and the gas consumption is lower compared with a medical oxygen production system on the market; the waste gas exhausted from the direct current side in the medical oxygen generation process is rich in oxygen which is still contained in gas mainly containing argon and nitrogen and still contains high-concentration oxygen, the oxygen is used for producing oxygen-enriched air, the production efficiency is improved, the air amount needed by a product is reduced, and the effect of reducing energy consumption is achieved.

The utility model discloses an aerial mobile flue gas gathering device which comprises a mobile cross beam arranged at the top of a plant, a gathering cover and a dust removal purifier are arranged on the mobile cross beam, an exhaust pipe and an air supply pipe which extend in the longitudinal direction are arranged in the gathering cover, the exhaust pipe is located in the middle of the gathering cover, and the air supply pipe is located in the middle of the gathering cover. The air supply pipes are arranged on the two sides of the exhaust pipe, the exhaust pipe is provided with a main ventilation pipeline connected with the dust removal purifier and a circulating air pipe connected with each air supply pipe, and attached jet flow along the top wall of the trapping cover is formed between the air supply pipes and the exhaust pipe through air supply openings and exhaust openings which are correspondingly arranged. The device can be moved according to a pouring site, dust-containing flue gas can be efficiently captured and purified with low air volume, the dust-containing flue gas is effectively prevented from forming a smoke dust suspension zone at the top of a plant, the equipment investment cost and the operation cost are fundamentally reduced, and the requirement of green and low-carbon development is met.

The invention relates to the technical field of tobacco pipe, in particular to a tobacco pipe capable of automatically recycling and purifying second-hand smoke, which comprises a tobacco pipe shell, a combustion chamber is arranged in the tobacco pipe shell, a cigarette fixing device is arranged at the top end of the combustion chamber, and a second-hand smoke inlet is formed in the outer side of the cigarette fixing device. A purified air outlet is formed in the bottom of the tobacco pipe shell, a second-hand smoke purifying mechanism is arranged between the second-hand smoke inlet and the purified air outlet, the tobacco pipe shell comprises a shell upper section and a shell lower section, a gas collecting hood and a fixed support are arranged on the upper portion of the shell upper section, and a plurality of purified air outlets are formed in the outer wall of the shell lower section in a penetrating mode; according to the second-hand smoke purification device, a smoking set for smoking and the second-hand smoke purification mechanism are integrated, a cigarette fixing device for smoking is adjacent to the second-hand smoke inlet, and second-hand smoke exhaled by a smoker does not diffuse in air, directly enters the second-hand smoke inlet, is treated by the purification mechanism and then is exhausted to the air.

The utility model relates to a spinning cover plate which is used for being placed on a spinning air bellow. The spinning air bellow is provided with a plurality of silk passing channels penetrating in the vertical direction, and the inner wall of each silk passing channel is composed of a spinning air bellow upper surface inlet, a filter element inner wall, a metal ring inner wall and a spinning air bellow lower surface outlet which are connected from top to bottom; the spinning cover plate comprises a cover plate surface a, a cylinder b, a sealing ring c and a sealing ring d; one bottom surface of each cylinder b is fixed on the lower surface of the cover plate surface a, and the number of the cylinders b is the same as that of the wire passing channels; the sealing ring c and the sealing ring d are sleeved on the cylinder b; when the spinning cover plate is placed on the upper surface of a spinning air bellow, the cylinder b is inserted into the yarn passing channel, the cylinder b is in sealed connection with the metal ring through a sealing ring d, and the cylinder b is in sealed connection with an inlet in the upper surface of the spinning air bellow through a sealing ring c. According to the spinning cover plate, melt or silicone oil can be prevented from dripping into the filter element, cooling air can be prevented from overflowing, and the energy-saving effect is achieved.

The present invention proposes a ladle bottom pouring smoke collection system and a smoke collection method, which belong to the field of smoke collection in the foundry industry. The ladle bottom pouring smoke collection system includes a smoke exhaust main pipe, a docking valve, a ladle bottom pouring collection hood, a walking track and a reserved opening sealing device; the ladle bottom pouring collection hood includes a first independent collection hood and a second independent collection hood. During pouring, the two independent ladle bottom pouring collection hoods are docked as a whole and symmetrical along the docking surface. The pouring smoke collection system of the present invention can form a small sealed space at the pouring station by improving the design and sealing method of the dust hood, and cooperating with the switching of the docking valve. The space has good sealing performance and can greatly reduce the air volume required for dust removal compared with the top suction hood, thereby greatly improving the collection efficiency. Compared with the solution of isolating the entire pouring workshop, it is more energy-saving and better operable.

The utility model discloses a fan control box capable of adjusting air outlet volume, which relates to the technical field of fan control, and comprises a control box main body and a fan blade group, the rear side of the control box main body is fixedly connected with an annular shell, and one end of the annular shell is fixedly connected with an air outlet control mechanism. The control box body controls the movable rod of the electric cylinder to extend and push the angle folding rod, the angle folding rod rotates in the sliding sleeve and pushes the sliding sleeve to slide on the outer surface of the shifting rod, the tail end of the electric cylinder rotates around the installation rod, and therefore the shifting rod drives the inner ring to rotate anticlockwise in the middle of the limiting ring under tangential force. Each arc-shaped groove inside pushes the rod portion of the corresponding movable block to slide in the corresponding straight groove, the block portion of each movable block slides in the gap between the clamping ring protruding blocks, the multiple movable blocks gradually cover the corresponding straight groove and block an air channel formed by the arc-shaped grooves and the corresponding straight groove, the air outlet amount is reduced, a movable rod of the electric cylinder shrinks, the air outlet amount is increased, and therefore the air outlet amount is further adjusted.

The present application belongs to the technical field of sewage treatment, and discloses a continuous flow aerobic granular sludge treatment device, which includes a pool A, a pool O, an aerobic granular sludge generating mechanism, a clear liquid discharge component and a reflux component, wherein the pool A constitutes an anaerobic pool, the pool O constitutes an aerobic pool, the pool O is arranged outside the pool A and extends along the circumference of the pool A, the bottom of the pool O is connected to the bottom of the pool A, the aerobic granular sludge generating mechanism is arranged inside the pool O and located at the outer edge of the pool O, a water inlet is arranged on the upper part of the aerobic granular sludge generating mechanism, the clear liquid discharge component has a water inlet end located inside the aerobic granular sludge generating mechanism and a drainage end extending to the outside of the pool O, the water inlet end is located above the water inlet, and the reflux component includes a first reflux pipe located in the pool O and connected to the aerobic granular sludge generating mechanism, and a second reflux pipe connected to the aerobic granular sludge generating mechanism and extending to the pool A.

The present application provides a kind of diuron granule moisture drying device, it is related to drying device technical field, including drying frame body and quartz heating tube, quartz heating tube is arranged on the inner wall of drying frame body, bottom support is arranged below the inside of drying frame body, the central position of bottom support top is equipped with heat dissipation cylinder, the bottom support top of heat dissipation cylinder outside is rotatably equipped with inner spiral and outer spiral, the diameter of inner spiral is less than outer spiral, hollow ring is arranged on the bottom support between inner spiral and outer spiral, clearance is left between the lower end of hollow ring and bottom support, the inside of drying frame body is equipped with rotating shaft.The slow rotation of inner spiral and outer spiral can lift the material originally located at the bottom to the upper, and drop from the upper end of hollow ring to the bottom, so circulation, not only can realize the mixing of material horizontal direction, but also can realize the mixing of up and down position, avoid the material located at the bottom is always not lifted, cause the problem of the material temperature of bottom to be too high.

This invention relates to the field of sludge treatment technology and provides an integrated device for low-heat-loss sludge drying and incineration. The device includes a frame, a drying unit, an incineration unit, a sludge conveying unit, a flue gas conveying unit, and a flue gas treatment unit. The flue gas conveying unit consists of an air intake mechanism and an inlet pipe. The air intake mechanism comprises a blower body, a drive assembly, a control assembly, a hollow main shaft, an annular frame, blower blades, and an adjustment assembly. The air intake mechanism can steplessly adjust the blower body's exhaust and suction air volume, output air pressure, and operating efficiency in real time. Based on real-time changes in the moisture content, feed amount, and organic matter content of the wet sludge, it can quickly adjust the blower body's exhaust and suction air volume, precisely control the heat supply of the annular flue gas heat exchange chamber, and precisely control the flue gas volume of the incineration unit. This stabilizes the optimal combustion condition of the incineration unit under a slightly positive pressure, completely solving the problems of positive pressure flue gas leakage or negative pressure cold air infiltration in the incineration unit, and reducing the fluctuation range of the combustion temperature in the incineration unit.

The utility model discloses an air guide module, a board card device and electronic equipment. The air guide module comprises a board card used for being inserted into an empty slot position of a case. And the air guide mechanism is mounted on the board card and is used for guiding air to the adjacent slot positions. In the embodiment of the invention, after the board card is inserted into the empty slot position adjacent to the function module, the air can be guided to the adjacent slot position through the air guide mechanism, the heat of the adjacent slot position is rapidly taken away, the air quantity flowing through the empty slot position is reduced, the air quantity of the adjacent slot position is enhanced, and the heat dissipation effect of the adjacent slot position is improved.

The utility model provides a device for drying cyanoacetamide, which belongs to the technical field of cyanoacetamide production and comprises a circulating fan, a heat exchanger, an airflow dryer, a dust remover group, a condenser and a condensate receiving tank which are sequentially connected according to the flow direction of materials, and an outlet of the condensate receiving tank is connected with an inlet of the circulating fan through a circulating pipeline. A closed-loop type circulating drying system is formed; and an outlet of the heat exchanger is connected with an air inlet of the airflow dryer. By adopting the closed-loop circulating drying system, the gas recycling efficiency is greatly improved, the moisture in the tail gas is recycled, the air volume exhausted by the system is reduced, the problem that a solvent in the moisture in the tail gas with large air volume is difficult to recycle is solved, meanwhile, the treatment difficulty of the exhausted tail gas is reduced, and environment-friendly and green production is ensured.

The present invention relates to an electric-controlled pneumatic socket wheel type Chinese herbal medicine precision seeding device and a seeding method thereof, wherein the outer side of the seeding wheel component is provided with socket holes along the circumferential direction, and the bottom of the socket holes is provided with air holes; the pneumatic system component is divided into a positive pressure chamber and a negative pressure chamber, the positive pressure chamber is a seeding area, and the negative pressure chamber is divided into a seed filling area and a seed carrying area; the transmission system component drives the seeding wheel component to rotate, and the seeding wheel component is provided with a circle of through holes along the rotation direction, and the positive pressure chamber and the negative pressure chamber of the pneumatic system component are connected with the air holes at the bottom of the socket holes through the through holes; when the seeding wheel component rotates through the seed filling area, the air hole adsorption force transmitted from the through holes through the negative pressure chamber adsorbs the seeds in the seed filling box component to the socket holes, and the seeds in the socket holes enter the seeding area after passing through the seed carrying area, and enter the seeding pipe welded parts for seeding under the action of the positive pressure airflow transmitted from the through holes through the positive pressure chamber. The present invention has a compact structure, has low requirements for air volume and air pressure stability, and can be adapted to the planting of Chinese herbal medicine crops with small plant spacing.

The invention discloses a primary and secondary fusion column mounted circuit breaker, relates to the technical field of circuit breakers, and aims to solve the technical problem that the isolation knife switch of the primary and secondary fusion column mounted circuit breaker in the northwest region is easy to accumulate dust, and after the dust covers the isolation knife switch, the device is easy to produce a short circuit fault and affect the use effect of the isolation knife switch. The invention comprises an air collection component and a pollution cleaning component arranged above the circuit breaker body, the air collection component and the pollution cleaning component are coordinated, the air collection component comprises a wind receiving component and a wind direction adjustment component, the wind receiving component comprises a support frame, a fixed plate one, a bellows and a fixed plate two, the wind direction adjustment component comprises an air block, a support column and a weather vane, an air duct is arranged at the bottom of the air block, three ventilation ducts are arranged below the air duct, and the output end of the three ventilation ducts is connected to an air outlet duct. The invention has the advantages of avoiding the accumulation of a large amount of dust on the outer surface of the isolation knife switch, ensuring that the outer surface of the isolation knife switch can always maintain a relatively clean state during long-term use.

The application relates to the technical field of plastic processing, and discloses a polypropylene high-strength composite material injection molding equipment for injection molding, which comprises a heating box, a hot melting cavity and a push cavity are arranged in the heating box, a nozzle is arranged at one end of the heating box close to the push cavity, a valve seat is arranged in the push cavity, a valve plate is arranged on the valve seat to block, a piston is arranged on one side of the valve seat, and a hysteresis rod is sleeved on the piston. The hysteresis rod pushes the valve plate to open the valve seat, the piston can push the material out of the nozzle, the valve has a counterforce on the hysteresis rod, spring I is compressed, when the piston is retracted, the hysteresis rod moves in the same direction, but the speed of the hysteresis rod is smaller than that of the piston due to the influence of spring I, the valve is still in the open state within a certain time, the material at the nozzle can move a distance to the position of the valve, saliva flow is avoided, and air intake is reduced.

The utility model discloses a round top charging aluminum alloy smelting furnace workshop smoke organized emission system which comprises round top charging aluminum alloy smelting furnaces evenly arranged in a workshop and roof smoke exhaust hoods arranged on the top of the workshop, and one roof smoke exhaust hood is arranged above each round top charging aluminum alloy smelting furnace. Roof smoke exhaust hood branch flues are arranged above the roof smoke exhaust hoods, a round top feeding aluminum alloy smelting furnace roof smoke collection technology which is not limited by a traveling crane, a cover opening machine and a feeding device is adopted, the workshop top above the furnace is divided into a plurality of areas through trusses and roofs, and then the multiple roof smoke exhaust hoods are divided. Each furnace corresponds to a plurality of smoke exhaust hoods to form a partition control roof integral type smoke exhaust hood matched with a workshop structure form, so that the smoke collection effect is improved, the operation cost is reduced, the pollution to the atmosphere can be reduced, and the environment protection is facilitated.

The invention discloses a large-space single-sided high-speed jet-induced copper converter dust collection device, including a single-sided high-speed jet-induced device, through which the high-temperature dust generated by the pollution source is directionally transported to the top cover exhaust port. The device provided by the invention inhales the escaping dust, and after being accelerated by the fan, the dust jet entrains the escaping dust from the front side of the converter and also carries it to the roof cover, thereby achieving the effect of efficiently removing the high-temperature dust.

The invention discloses an air-conditioning outlet with an air-inlet guiding function, wherein an air guide plate is rotatably installed on the air-inlet side of an inner frame, so that the wind discharged from the air outlet of an air-conditioning main unit is guided as much as possible into the frame of the air-conditioning outlet, the hardness of the air guide plate is greater than that of a traditional fire-resistant cloth connecting tube, and the air guide plate significantly improves the air-guiding efficiency for the air-conditioning main unit compared with the traditional fire-resistant cloth connecting tube; the air guide plate is rotatably installed on the air-inlet side of the inner frame, and the opening angle of the air guide plate can be flexibly adjusted according to the distance between the air outlet of the air-conditioning main unit and the air-conditioning outlet, so as to ensure that the air guide plate has the best air-guiding efficiency and use flexibility for the air outlet of the air-conditioning main unit; at the same time, the air volume of the wind discharged from the air outlet of the air-conditioning main unit blown onto the outer frame is reduced, especially in summer, the condensation phenomenon on the outer frame of the air-conditioning outlet is significantly reduced; the air-conditioning outlet has a simple and reasonable structural design, high feasibility of preparation and implementation, and strong practicality.

The present invention discloses a split-type high-efficiency fume capture device for annular cooler unloading, comprising a split-type unloading hood and T-shaped sealing grooves arranged on both sides of the lower end of the split-type unloading hood; wherein the split-type unloading hood is connected to the annular cooler platform through the T-shaped sealing groove, and the split-type unloading hood is sleeved on the top of the annular cooler trolley; a plurality of air suction ports are arranged in the middle of the upper part of the split-type unloading hood; guide plates are arranged on both sides of the bottom of the split-type unloading hood, and the guide plates are located below the air suction ports, wherein the plurality of air suction ports are connected to dust removal pipelines for capturing smoke at the annular cooler unloading place of the sintering machine; the present invention changes the structure of the split-type unloading hood and arranges T-shaped sealing grooves to prevent smoke from escaping, thereby effectively improving the dust capture efficiency.

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.

A trichloroisocyanuric acid mother liquor chlorine recovery system comprises a mother liquor tank and a hydrochloric acid tank, the mother liquor tank is communicated with the bottom of a dechlorination tank through a pump body and a pipeline, the hydrochloric acid tank is communicated with the top of a dechlorination tower through a pump body and a pipeline, and the bottom of the dechlorination tower is communicated with the top of the dechlorination tank. The dechlorination tank is also communicated with the top of the dechlorination tower through a pump body and a pipeline, and the top of the dechlorination tower is also communicated with chlorine recovery equipment. By optimizing the structure, the trichloroisocyanuric acid mother liquor chlorine gas recycling system is formed, the acidity of the mother liquor is increased, the air volume of the blow-off tower is reduced, the air content in the blown chlorine gas is reduced, the recycled chlorine gas is used for producing a sodium monochloroisocyanate intermediate, and the recycling is ensured.

The invention provides clothes treatment equipment. The clothes treatment equipment comprises an outer cylinder and a drying system; a drying air inlet and a drying air outlet are formed in the outer cylinder; the drying system is connected between the drying air inlet and the drying air outlet and comprises a condensation air duct, a heating air duct and a drying fan connected with the condensation air duct and the heating air duct, the drying fan is a double-suction fan, and the drying fan is used for providing power for drying airflow; the condensation air duct comprises an outer condensation air duct formed on the outer side of the rear wall of the outer cylinder and an inner condensation air duct formed on the inner side of the rear wall of the outer cylinder; under the condition that less condensate water is required, the drying effect is improved, the utilization rate of the condensate water is improved, and water and energy are saved; the load of the drying fan 5 is reduced, and the accumulation phenomenon of drying airflow humidity is avoided; fresh air in the environment where the clothes processing equipment is located can enter the fan blade cavity and be mixed with the drying airflow, and the quality of the drying airflow can be improved by introducing the fresh air; drying airflow makes full contact with condensate water, the heat exchange area is large, and the condensation efficiency is high.

The utility model provides a kind of intelligent fresh air system for pasture, including base, the top of base is equipped with fresh air machine, further include with the gas monitoring mechanism of the intercoordination of the fresh air machine, the fresh air machine includes body, the sidewall of the body is equipped with frequency conversion fan and first delivery pipeline.The utility model is provided with the setting of gas monitoring mechanism, controller and frequency conversion fan, can monitor the air quality in pasture in real time during use, and data transmission is given to controller, then the speed of frequency conversion fan is intelligently controlled by the data of monitoring, reduce air volume when environment is good, reduce energy waste, when air pollution is over standard, automatically promote ventilation efficiency, without artificial continuous duty, can reduce manpower cost, improve management efficiency, also can avoid the deterioration of environment caused by artificial intervention lag.

The present invention relates to an oven ventilation system, comprising an inner tank and a mounting plate arranged above the inner tank, a first ventilation hole for hot air to pass through is provided on the top wall of the inner tank, and correspondingly, a second ventilation hole is provided on the mounting plate, and the system also comprises a ventilation pipe assembly, an air guide and a fan. The present invention increases the pressure of the heated air in the oven inner tank through the ventilation pipe assembly and always maintains a relatively constant pressure, thereby avoiding the natural output of a large amount of hot air, improving the heat utilization rate, and thus improving the cooking efficiency; at the same time, part of the hot air output by the ventilation pipe assembly is mixed with the external cold air in the first air guide channel and then output through the second air guide channel, which can play a cooling effect on the oven control circuit board installed above the second air guide channel, but because the thermal resistance is increased in this process, to achieve the same cooling effect, the required air volume of the fan is reduced, and the power requirement of the fan is also reduced accordingly, which not only reduces the fan noise, but also saves energy consumption.

The utility model relates to the technical field of pipeline adjusting devices, in particular to a heat supply ventilation pipeline adjusting device which comprises a ventilation assembly and an air volume adjusting assembly, the ventilation assembly comprises a ventilation box, a ventilation opening is formed in one side of the ventilation box, and the air volume adjusting assembly is arranged on the inner wall of the ventilation opening. The air volume adjusting assembly comprises an air outlet pipe, the air outlet pipe is fixedly connected to the inner wall of the ventilation opening, the back face of the inner wall of the air outlet pipe is fixedly connected with a first fixing rod, and the front face of the first fixing rod is fixedly connected with a first fixing ring. According to the heat supply and ventilation pipeline adjusting device, by installing the air volume adjusting assembly, a motor can be started, the motor can drive a second rotating rod to rotate, a second gear drives a first gear to rotate, a second fixing rod can drive a folding plate to rotate, then the folding plate is rotated and unfolded, and the interior of an air outlet pipe can be shielded; and the air volume is reduced, so that the air volume can be uniformly controlled.

The invention discloses a cold and warm air purification circulating fan with an adjustable air inlet, which comprises a machine body provided with a machine body front air inlet hole and a machine body rear air inlet hole; a motor support; fan blades are arranged on an output shaft of the fan; a heating assembly; an air outlet net; a rear cover; a filter assembly; air duct air inlet holes which are uniformly distributed in the circumferential direction are formed in the air duct, and the air duct air inlet holes correspond to the air inlet holes in the front portion of the machine body; the air control ring is provided with air control ring air inlet holes matched with the air channel air inlet holes, and when the air control ring and the air channel rotate relatively, the air channel air inlet holes and the air control ring air inlet holes are communicated or isolated from each other. According to the cold and warm air purification circulating fan with the adjustable air inlet, the air inlet amount of the circulating fan can be adjusted by controlling the air control ring, then the appropriate air amount and appropriate cold and warm air are adjusted, adjustment is convenient, application flexibility is high, the cold and warm air purification circulating fan has the advantages of being large in air force, large in air amount, long in air blowing distance and low in noise in use, and use experience is good.

The utility model discloses a fan coil structure of a marine air conditioner, which comprises a bottom plate, a condensate water disc is fixedly mounted on the top surface of the bottom plate, a support frame is fixedly mounted in the condensate water disc, a fan coil body is fixedly mounted on the top surface of the support frame, a fan body is mounted on one side of the fan coil body through a mounting plate, and the fan coil body is fixedly mounted on the top surface of the support frame. A filter box is installed on one side of the fan coil body, a through opening is formed in the top face of the filter box, and a limiting sliding groove is formed in the inner wall of the filter box. By arranging the filter plate, dust, impurities and the like in the air can be effectively filtered through the filter plate in the using process, the influence on the air volume and the heat exchange effect is reduced, by arranging the fixing block, the sliding groove, the sliding block, the spring, the limiting clamping rod, the L-shaped shifting plate, the limiting clamping hole and the like, the filter plate can be installed in a limited mode, and the practicability is high. The fixing performance of the filter plate is improved, the filter plate is effectively prevented from shifting up and down in the using process, and the filter plate is convenient to disassemble, assemble and clean.

The present application provides an online activation system, method and vehicle for a fuel cell, and relates to the field of fuel cell technology. The system includes: a bidirectional DC converter, a fuel cell, and vehicle equipment, and the vehicle equipment includes: a power battery and electrical equipment on the vehicle; a hydrogen control valve is provided on the hydrogen intake pipe of the fuel cell, a hydrogen circulation pump and a hydrogen-water separator are provided on the hydrogen circulation pipe of the fuel cell, and the hydrogen circulation pipe is connected to the hydrogen intake pipe; an air control valve, an air compressor, an intercooler and a first humidifier are provided on the air intake pipe of the fuel cell, an air-water separator, a three-way valve and a second humidifier are provided on the air circulation pipe of the fuel cell, and the air circulation pipe is connected to the air intake pipe, and the connection position of the air circulation pipe and the air intake pipe is located between the air control valve and the air compressor. Through the system of the present application, the on-board fuel cell can be automatically activated by multi-cycle hydrogen pump and high-power activation when the whole vehicle is running.

The utility model relates to the technical field of air supply pipe air distribution, and discloses an air supply pipe air distribution mechanism which comprises a main body pipeline, a bottom end supporting frame is welded to the left end of the main body pipeline, a driving motor is fixedly connected to the top of the bottom end supporting frame, and a transmission belt is connected to the output end of the driving motor through a belt. The inner wall of the transmission belt is in belt connection with a first gear, and the rear end of the first gear is engaged with a second gear. When the driving motor is arranged to be matched with the transmission belt connected with the output end belt for driving, the transmission belt can drive the first gear on the inner wall to rotate, and when the first gear rotates, the second gear at the rear end can be meshed and driven to rotate; and when the second gear rotates, the rotating rod at the bottom end and the choke plate are driven to rotate left and right in the main body pipeline, so that a worker can conveniently control the choke plate to adjust the air outlet with the air volume needing to be adjusted.

The invention discloses a purification circulating fan capable of adjusting the air inlet area, which comprises a fan body, a fan body air inlet, a fan body air inlet and a fan body air outlet, the motor bracket is mounted in the hollow inner cavity; the fan is arranged on the motor support, and fan blades are arranged on an output shaft of the fan; an air outlet grid; a rear cover; air duct air inlet holes which are uniformly distributed in the circumferential direction are formed in the air duct; the controllable air duct ring is rotatably arranged on the periphery of the air duct in a sleeving mode, air duct ring air inlet holes are formed in the controllable air duct ring, and when the controllable air duct ring and the air duct rotate relative to each other, the air duct air inlet holes and the air duct ring air inlet holes communicate with each other or are isolated from each other; and the filtering assembly is arranged between the motor bracket and the inner wall of the machine body. According to the purification circulating fan capable of adjusting the air inlet area, the air inlet amount of the circulating fan can be adjusted by controlling the controllable air duct ring, and the purification circulating fan has the beneficial effects of being high in use flexibility, capable of achieving the advantages of large wind power, large air volume, long air blowing distance and low noise and good in use experience.