74results about How to "Optimize air volume" patented technology

The invention relates to a measurement system capable of spraying urea solution into exhaust flow (9) of combustion engine for selective catalytic reduction and a control method thereof. The measurement system is connected with a urea solution box (1) to taka out urea solution and the measurement system is also connected with a compressed air supplying device (6) wherein the measurement system comprises at least one nozzle (5) for spraying the urea solution into the exhaust flow in aid of compressed air. The measurement system comprises an air valve (7) to adjust the pressure and/or air amount and/or valve starting time of the compressed air supplying device (6) and a sensor for measuring the pressure and/or air amount in the compressed air supplying device (6) is set between the air valve (7) and the nozzle (5).

The invention discloses a frequency-adjustable atomizing dosing respirator which comprises a base, an oxygen tank, an air tank, an air-oxygen mixer, a fixing box and a control system.A mixing rotator is arranged in the air-oxygen mixer, an air pump is connected on the air-oxygen mixer, an air outlet end of the air-oxygen mixer is connected with an air purifier, an air outlet of the air purifier is connected with a humidifier, a pipeline is connected on the humidifier, and the other end of the pipeline is connected with a respiratory mask.The air pump is arranged on the oxygen tank and the air tank, so that frequency and air outgoing quantity can be adjusted conveniently to meet requirements of different patients; a heating plate and a temperature sensor are mounted in the air-oxygen mixer, so that gas needed by the patients can be heated and cleaned; an ultrasonic generator can ensure gas temperature to be unchanged in the humidifying process and can generate negative oxygen ions good for human body; the air purifier is arranged, so that germs in air guided in by a respirator body can be killed effectively.

The invention relates to a reflux type static dust removing device. The reflux type static dust removing device is characterized in that an omega-shaped polar plate is disposed on the upper portion of a belt conveyor, a plurality of through holes are formed in the top of the omega-shaped polar plate in an equal-distance manner, insulating tubes are disposed in the through holes, one ends of the insulating tubes are located on the inner side of the omega-shaped polar plate, the other ends of the insulating tubes are located on the outer side of the omega-shaped polar plate, a suspension rod penetrates each insulating tube to be connected with a barb connecting tube, the other end of the suspension rod is fixed on the upper portion of the insulating tube, barb corona wires are disposed on the barb connecting tube in an equal-distance manner, a vibrating motor is disposed on the omega-shaped polar plate, a reflex fan is disposed on one side of the top of the omega-shaped polar plate, an emptying fan is disposed on the other end of the top of the omega-shaped polar plate, a static generator is respectively electrically connected with the suspension rods and the omega-shaped polar plate, and the static generator is grounded. The reflux type static dust removing device has the advantages that the metal sealing cover on the belt conveyor is directly used as the dust collecting polar plate, a dust storage device is omitted, and the device is simple in structure, small in floor space, convenient to mount and maintain and suitable for places in land shortage and limited space.

The invention discloses a safety type electric fan which comprises an air suction assembly and an air outlet mask. The air outlet mask is provided with an air inlet hole, air guiding channels, air outlet narrow holes and an installing part. The air inlet hole is arranged on the back of the air outlet mask, the air outlet narrow holes are arranged on the front of the air outlet mask, and the installing part is arranged at the position of the center of the back of the air outlet mask. The air suction assembly comprises a casing, a suction fan arranged in the casing and an air duct arranged in the casing. One end of the casing is provided with a mesh plate serving as an air duct air inlet, the other end of the casing is provided with an air duct air outlet, one of the casing provided with the air duct air outlet is fixed in the installing part, and the air duct air outlet is communicated with the air inlet hole of the air outlet mask. The safety type electric fan is small in noise and large in air outlet quantity.

The invention discloses an all-round window which comprises a frame body and a window body arranged in the frame body, wherein the window body consists of a plurality of transparent hollow vanes; the adjacent vanes are in sealed connection with each other; and a rotating mechanism for driving the vanes to rotate to open and close is arranged in the frame body. The all-round window has the advantages of simple structure, convenience in use, capability of controlling the vanes to rotate to open and close and the like, and can replace the existing glass windows.

The invention relates to a smelting assistant for steel works, namely a low-temperature pulverization inhibitor for sintered ore. The low-temperature pulverization inhibitor is prepared by mixing carboxymethyl starch, boric acid, silicon micropowder and a permeate agent in designated proportion; compared with CaCl, Cl ion drag-in quantity is reduced more than 50%, the low-temperature pulverization inhibitor can not generate a replacement reaction with K and Na alkali metals in a furnace charge, therefore, the problem of continuous and circulating enrichment of KCl (kirchhoff's circuit laws) and NaCl in a blast furnace is solved, the reactivity of coke is restrained, the melting loss reaction is reduced, the heat intensity of the coke is ensured, low temperature reduction pulverization rate of the sintered ore is reduced, the destructive effect of the alkali metal on the coke and the blast furnace is basically solved, the furnace condition is smooth, and the output is increased.

The invention provides an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a first air guide plate and a second air guide plate, wherein the shell is provided with an air outlet facing the front lower portion; and the first air guide plate and the second air guide plate are rotatably installed on the front side of the air outlet and the lower side of the air outlet correspondingly to open and close the air outlet in a coordinating manner, and the second air guide plate is configurated in a front air guide state that the second air guide plate can be rotated to belocated on the lower side of the air outlet and make an air guide face of the second air guide plate face upwards to guide air feeding airflow to the front portion, the front upper portion or the front lower portion and in a lower air guide state that the second air guide plate can be rotated to be located on the rear side of the air outlet and make the air guide face of the second air guide plate face forwards to guide the air feeding airflow to the lower portion. By means of the air conditioner indoor unit, cold air upward blowing and hot air downward blowing can be realized.

The invention discloses an indoor air purification device and belongs to the technical field of air purification equipment. According to the indoor air purification device, forced air supply is conducted through a fan; the extremely high purification effect can be achieved within a short time inside a closed room; meanwhile, three vortex fans are adopted in the device, so that a triangular structure is formed; the indoor air purification device is clear and incomplex in structure; and the three vortex fans work at the same time, the transfer rate is increased, and the problem that a backflow dead area exists inside the device is avoided. Large particles and dust in air are removed through a coarse grid plate and an electrified plate; by means of padding inside a filter screen, poisonous gas can be effectively adsorbed; and meanwhile, activated carbon serves as a carrier, the disinfection effect of an ultraviolet lamp is utilized, and the air is further purified. By means of an inductorand an automatic door, the filter screen in the device can be replaced conveniently; and by means of a switch system, the device on/off time and the blast capacity can be set conveniently. By means of the indoor air purification device, the problems that at present, existing indoor air purification devices are not good in filtration effect, air channels are generally of linear types, so that backflow dead areas exist inside purifiers, and the purification effect is deteriorated are solved.

The invention relates to a steaming and baking integrated machine which comprises an inner container and an air heater; a hot air baffle is arranged on the rear side of the inner container, a hot air chamber is defined by the hot air baffle and a back plate of the inner container; hot air fan blades of the air heater are installed in the hot air chamber, and an adjusting check ring is arranged on the periphery of the hot air fan blades. The adjusting check ring is formed by at least two adjusting plates arranged in the front-back direction in a surrounding mode in the circumferential direction; each adjusting plate can rotate, and the adjusting check ring at least has the following two states: in the first state, the two ends of each adjusting plate are spliced with the corresponding ends of the adjacent adjusting plates correspondingly, and the adjusting check ring forms a closed ring body; and in the second state, the two ends of each adjusting plate are separated from the corresponding ends of the adjacent adjusting plates respectively. According to the steaming and baking all-in-one machine, the hot air volume in the inner container can be adjusted, so that the optimal baking effect can be achieved; outlet air of the hot air fan blades can form laminar flow through the flow guide effect of the adjusting plates, so that the hot air circulation efficiency of the hot air chamber is improved, and the cooking efficiency of the steaming and baking all-in-one machine is improved.

This invention relates to a kind of lighter comprising: a housing, a storage, a outlet control bar, at least an ignition chamber, at least an igniter and a head cover, characterized in that it also includes a middle seat for supporting said ignition chamber, and said inlet valve is provided on the side of outlet valve of said storage, and on the valve core of said inlet valve there is provided with a rotatable gear adjustment mechanism engaging with a gear provided on the case of said outlet valve. Such a structure may easily adjust the amount of gas as outlet and is simple in structure and may not affect use after injection of gas thereinto.

The invention discloses a 360-degree fan turbine device with the optimized pneumatic performance. The turbine device comprises a rotary shaft for connecting a turbine with a working motor, blades, a flat plate, a motor fixing rack and a base, wherein the turbine is covered by a netty outer cover; the blades are circumferentially mounted on the rotary shaft at an equal interval and directly connected with the flat plate; the turbine is connected with the motor through a rotary shaft; the motor is correspondingly fixed to the motor fixing rack; the motor fixing rack is fixed in the base. The turbine device is improved, namely a flow guide plate with the impact reduction performance, a toothed structure and a stepped structure are improved to improve the pneumatic performance of the 360-degree fan. The turbine device has the characteristics of efficient pneumatic performance, low noise and the like.

The invention relates to a centrifugal fan and a refrigerator using the fan. The centrifugal fan comprises a chassis, an inner hub and a plurality of blades, wherein the inner hub is fixedly arranged in the middle of the chassis, the blades are distributed around the inner hub and are fixedly arranged on the chassis, one end, near the inner hub, of each blade is provided with an inner circle end, one end, away from the inner hub, of each blade is provided with an outer circle end, the blades are distributed from the inner circle ends to the outer circle ends, the axial height of the fan is gradually reduced from the top of each blade in the axial direction of the fan to the direction of the chassis, and the distance from the height reduction initial position of each blade in the axial direction of the fan to the axis of the inner hub is equal to 74% to 81% of the radius length of the fan. The centrifugal fan has the advantages that the structure is simple; the axial height of the outer circle end of each blade is reduced, and the pressure on the outer circle end of each blade is reduced, so the noise is reduced; according to the proof by experiments, the effect of the height reduction initial position at the 74% to 81% of the fan radius is better.