121results about How to "Stable air volume" patented technology

The invention is suitable for the technical field of an air conditioner, and discloses an air conditioner and an air supplying method of the air conditioner. The air conditioner comprises a casing and a heat exchanger arranged in the casing, wherein an air inlet is formed in the casing; the casing is provided with an air hole penetrating through the casing; an air outlet which is used for blowing out the airflow to enable the negative pressure to be generated at the air hole is formed in the inner wall of the air hole; an airflow generating device which is used for driving the airflow to enter into the casing from the air inlet and discharging the airflow out the casing from the air outlet after the airflow flows through the heat exchanger is arranged in the casing; the air hole is positioned in one side of the airflow generating device. The air supplying method of the air conditioner adopts the air conditioner. By adopting the air conditioner and the air supplying method of the air conditioner, the aerodynamics theory is used, and an air supplying effect having performance many times higher than the performance of the air inlet and the air outlet is formed; the energy efficiency utilization is high; the air supplying effect is excellent; the air output is stable and uniform; people feel comfortable; the energy-saving and environment protection effect of the air conditioner is excellent.

The invention belongs to the technical field of coal mines, and discloses a dust collecting and removing system for a wind curtain in a fully mechanized excavation face. The dust collecting and dust removing system for the wind curtain in the fully mechanized excavation face comprises a pressing-in system; the pressing-in system comprises an wind curtain flow jetting device, a pressing-in type ventilator and a pressing-in type wind tube; the pressing-in type ventilator communicates with the wind curtain flow jetting device through the pressing-in type wind tube; the wind curtain flow jetting device comprises a mining tunneling high pressure blower, a first wind curtain wind-pressing wind tube, a second wind curtain wind-pressing wind tube, a flow jetting box and a flow jetting cavity. According to the dust collecting schemes, a wind curtain is installed additionally and reasonably on the basis of a wind supplying and dust removing system in an original fully mechanized excavation face, fully mechanized excavation free face is sealed, by reasonable adjusting the wind speed and wind volume of a flow field, dust is controlled to not diffuse to a roadway and not affect working, accessing and observing of a personnel, after the dust source is sealed by the wind curtain, airflow with the dust is drawn out by a dust removing device, the dust removing and purifying process of the airflow with the dust is finished accordingly, and the purpose of dust controlling is effectively achieved.

The invention discloses a wind power dedusting system for a rolling process of a cigarettes factory. The wind power dedusting system comprises a deduster connecting pipe, a plurality of branch wind pipes and a plurality of pieces of rolling and packing equipment, wherein each piece of rolling and packing equipment is connected with a branch wind pipe; the wind power dedusting system also comprises a wind compensating pipe with a wind compensating silencer and a main wind pipe; the deduster connecting pipe and the wind compensating pipe are respectively communicated with the main wind pipe; the main wind pipe is respectively communicated with each branch wind pipe through a pipe collector; and the wind compensating pipe is provided with a control valve which is used for automatically switching on to compensate wind when a certain branch wind pipe is stopped. The wind power dedusting system can concentrate wind power for supply, and ensure stable wind quantity, wind pressure and wind speed; the pipeline design is more standardized and unified; and the effective operability and the yield of the rolling and packing equipment are improved, the production cost is reduced and the service environment of workers is improved.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system and a fan and an air conditioner with the air duct system. An air flow channel is divided into at least two sub channels by air tunnel portions, wind wheels suck air flow in from air inlets, the air flow is made to flow through a heat exchanger and then made to be blown out forwards from air outlets located on the inner side or the periphery of the air tunnels, the air tunnels are front-back through tunnels, air enters an air inlet portion from the air inlets, flows to squeezing portions, then is divided into at least two streams under the effect of the air tunnel portions and then is blown out from the air outlets, air blown out from the air outlets enables the front sides of the air tunnels to form negative air pressure, and air at the rear portions of the air tunnels is sucked forwards and flows out from front end openings of the air tunnels. The air supply effect which is at least multiple times the air inlet capacity of the air inlets is formed through the principles of the aerodynamics, the energy efficiency utilization rate is high, the air supply effect is good, and the energy saving and environment protection effects are good.

The invention discloses cold firework jetting equipment. The equipment comprises an air supply device, a feeding device, a heating device, a cold firework nozzle, a bottom supporting board, a side supporting board, a cold firework nozzle installation board and metal powder. The equipment can overcome the multiple defects that gunpowder is needed in the set-off process of a traditional cold firework barrel, so that potential safety hazards exist, smoke and pungent smell pollution is generated in the set-off process, the jetting time is short and cannot be controlled, and a cold firework jetting device cannot be recycled; and existing cold firework jetting equipment is complex in system structure, clumsy, heavy, poor in controllability, high in cost and the like, and the cold firework jetting equipment has the beneficial effects of being safe, environment-friendly, simple in structure, long in jetting time, good in controllability, capable of being recycled and achieving the good set-off effect and the like.

The invention discloses a constant-flow blower fan and a control method thereof. The control method of the constant-flow blower fan comprises the steps that S100, when the rotating speed of the constant-flow blower fan is n and the value of an output current of a variable-frequency driver is less than a set value, the output current of the variable-frequency driver is increased; when the value of the output current of the variable-frequency driver is greater than the set value, the output current of the variable-frequency driver is decreased. The working current and voltage of the blower fan are controlled by controlling the output current of the variable-frequency driver, and therefore the rotating speed of the blower fan is controlled; after the rotating speed of the blower fan is changed, the corresponding air quantity will be changed, and therefore the air quantity of the blower fan is kept in a reasonable range, and using performance of the blower fan is improved.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system and an air conditioner with the air duct system. Air flow blown out from all air outlets flows forwards to enable negative pressure regions to be formed on the front sides of all air tunnels, and under the effect of all the negative pressure regions, air on the rear sides of the air tunnels is sucked to penetrate through the air tunnels, so that the air is blown out forwards with the air flow blown out from the air outlets. Due to the fact that air has certain viscosity, when the air flow is blown out from the air outlets, the air flow carries adjacent air flow to flow forwards together, the air supply effect at the air flow center is enhanced, moreover, air around the air tunnels is supplemented due to the effect of negative pressure, the air supply range is expanded, the air supply effect which is at least multiple times the air inlet capacity of air inlets is formed through the principles of the aerodynamics, the energy efficiency utilization rate is high, the air flow does not need to be cut by fan blades, the air supply amount is stable and even, human bodies can feel more comfortable, and the air supply effect is good.

The invention discloses an adjustable circular air blow cooling system, which belongs to the field of fiber manufacturing equipment. High-precision pressure sensors are arranged in both the static pressure bin and air duct bin of a circular air blow device, an automatic control valve is arranged at the position of an air intake pipe, a whole production line is controlled by one computer, and thus, the automatic interlocked air pressure regulation can be realized; and the circular air blow device of which the circular blow head is adjustable is arranged, so that the air pressure and volume stability of the air duct bin are ensured all the time and the product quality is guaranteed to a maximum degree.

The invention discloses a ventilating and energy-saving control method realizing distribution of underground air quantity of an underground mine according to needs. The method comprises the following steps of: performing required airflow theoretical calculation by adopting mine ventilating network solving software according to seasons and operating periods of time; arranging draught fans in a relay manner according to an air current line; arranging an air velocity transducer in a draught fan mounting lane for monitoring air quantity; converting air quantity into draught fan frequency according to principle of similitude, and setting different air quantity allowed errors for the draught fans in different regions; and regulating the air quantity by virtue of a PLC control system. The method disclosed by the invention realizes ventilation of a mine ventilating system according to needs in an overall process from the aspects of calculation of required airflow of the mine, air quantity monitoring, setting of air quantity allowed errors and control and distribution of air supply, has the advantages of being stable to operate, reliable and practical and ventilating and energy-saving, is suitable for a metal/non-metal underground mine ventilating system and particularly suitable for ventilating and energy-saving control of the underground mine according to needs of a multi-draught fan ventilating system, wherein the draught fans are under frequency conversion control.

The invention relates to a fan system, an air pipe machine and an air conditioning unit. The blower system comprises at least two axial fans (3) arranged side by side, wherein the two axial fans (3) are installed oppositely, so that the two axial fans (3) can implement bidirectional switching on the blast direction through the change of the rotation direction. Since the axial fan has the characteristics of forward rotation and reverse rotation and the air outputs of the axial fan during forward rotation and reverse rotation are different, when the two oppositely installed axial fans rotate clockwisely or anticlockwisely at the same time, one of the two axial fans can rotate forwardly, and the other axial fan rotates reversely, thereby ensuring the stable air output, and implementing reversing of the blast direction when the directions of the axial fans are changed.

The invention discloses a software control method for automatically compensating the air volume of an air conditioner, and relates to a method for compensating the air volume through motor parameter detection under the situation that the air volume of an indoor unit is decreased. The method comprises the steps that standard parameters such as Rt and Q0 of the air conditioner are stored in an EEPROM, whenever the air conditioner is started, the fan shaft power P is monitored in real time, the real-time air volume Q of a fan is calculated, when Q/Q0 is smaller than or equal to 85%, the air volume is compensated to the standard air volume from the current air volume at a time through a direct compensation method, and according to a fan law, the fan speed regulation voltage square wave duty ratios before and after compensation are calculated through the proportions of the air volumes before and after compensation; or an adjusted compensation method is adopted to compensate the current air volume to the standard air volume for multiple times, and according to a fan law, the fan speed regulation voltage square wave duty ratios before and after compensation are calculated through the proportions of the air volumes before and after compensation; on the basis that the hardware cost is not increased, compensation is conducted on the air volume by regulating the fan speed regulation voltage square wave duty ratio, the stability of the air volume is guaranteed, and the operation effect and stability of the air conditioner are improved.

The invention provides a heating-not-burning tobacco smoking device based on a mechanical energy storage type air exhausting assembly. The device comprises a shell with an air inlet and an air outlet.An wind wheel, a spring mechanism for driving the wind wheel to rotate, and a twisting handle inserted into the exterior of the shell to store energy for the spring mechanism are arranged on the portion, corresponding to the air outlet, in the shell. A fuel cavity for clamping fuel is arranged on the portion, corresponding to the air inlet, in the shell, a ventilating cavity communicated with theair inlet and the air outlet is formed in the shell, the shell is recessed inwards to form a tobacco containing cavity for containing to-be-heated tobacco matter, only one end of the tobacco containing cavity is communicated with external air, the deep of the tobacco containing cavity penetrates into the shell, and a heat transfer element stretching into the tobacco containing cavity is arrangedon the inner bottom face of the fuel cavity. Heat generation and transfer effects in the tobacco smoking device can be improved and the use experience of consumers is better.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system, a fan with the air duct system and an air conditioner with the air duct system. Airflow is at least divided into two ways and blown out from air outlets in the two sides of an air tunnel through flow diversion passages, so that airflow moving forwards evenly and stably is formed on the two sides of the air tunnel, strong and stable negative pressure can be generated in the air tunnel, under the suction effect of the negative pressure, air at the rear of the air tunnel is sucked forwards, enters the air tunnel from the rear end of the air tunnel, penetrates through the air tunnel, and then flows out of an opening in the front end of the air tunnel, the air supply effect of an airflow center is enhanced, air surrounding the air tunnel is supplemented due to the effect of the negative pressure, the center airflow drives the airflow surrounding the center airflow to move forwards together, the air supply range is increased, based on the aerodynamics principle, the air supply effect that the air inflow capacity is multiple times of the air inflow capacity of air inlets is formed, the energy efficiency utilization rate is high, and the air supply effect is good.

The invention relates to a ventilation system based on an air and light complementary technology. An air inlet is internally provided with partition boards and is divided into multiple air channels. Any air channel of the air inlet is provided with a bladeless fan. An air draught fan blade is installed on a driving shaft in the air inlet, and the driving shaft is provided with a sealing plate. The periphery of a pipeline below the sealing plate is evenly provided with air holes, and a fresh air pipeline is arranged above the air inlet. An air valve is arranged below the air inlet, and the air valve is connected with a heat exchanger. The side face of the heat exchanger is provided with a used air pipeline which is connected with a solar heat collecting pipeline coaxial with the air draught fan blade. The solar heat collecting pipeline is connected with an exhaust fan, and the lower portion of the heat exchanger is connected with a volute cyclone. According to the ventilation system based on the air and light complementary technology, a solar cell panel can be used for power generating, energy accumulating, heating and exhausting, authigenic ventilation is formed, pollution is avoided, sustainability is achieved, and zero-energy-consumption and high-efficiency ventilation can be achieved.

The invention relates to additive which is used for sintering production and in particular relates to sintered ore powdering inhibitor. The technical scheme is that the inhibitor comprises calcium chloride, magnesium chloride, boric acid and bromine, the weight percentage of each component is that: the calcium chloride 70%-75%, the magnesium chloride 10%-15%, the boric acid 10%-15% and the bromine1%-3%, the purity of each component is that the calcium chloride 92%, the magnesium chloride97%, the boric acid 99.8% and the bromine99.9%, The inhibitor improves the metallurgical property of sintered ores, inhibits powdering, and impels blast furnace conditions to operate smoothly, simultaneously, the metallurgical property of coke is improved, and the coke ratio is lowered. Experiments show that the sintered ore powdering inhibitor has good using effect, the blast furnace is stable and operates smoothly, the air volume is stable, the output is increased, the coke ratio is lowered, and the economic benefit is prominent. The blast furnace output can be increased by 1.5% and the coke ratio can be lowered by 1.55% through adopting the inhibitor of the invention.

The invention belongs to the technical field of production of blast furnaces and in particular discloses a blowing-in and charging method of the blast furnace. The blowing-in and charging method comprises the following steps: 1) debugging each system before blowing-in of the blast furnace and preparing blowing-in furnace burdens; 2) adding empty coke into the blast furnace and filling into a partlocated below a furnace bosh and capable of forming a furnace burden softening zone; 3) conveying hot air into the blast furnace and controlling air pressure to be greater than or equal to 0.100Mpa; continually adding the empty coke into the blast furnace in an air conveying process until a material line is normal. According to the blowing-in and charging method of the blast furnace, provided by the invention, a blast furnace blowing-in method adopts a semi-charging manner and a condition that cold blowing-in furnace burdens are added into the blast furnace in one step is avoided; meanwhile, after part of the furnace burdens are pre-charged, zone air is blown and a material column can be blown to be loose through a zone air material driving line, so that on one hand, the air permeability of the material column is ensured; on the other hand, sufficient combustion of the furnace burdens is facilitated and the aim of saving the furnace burdens is realized.

The invention provides a ventilating cabinet type air conditioner indoor unit. The ventilating cabinet type air conditioner indoor unit comprises a machine shell, at least one air supplying assembly,a heat exchanger and a ventilating device, wherein the machine shell is provided with a machine shell air inlet and at least one machine shell air outlet, the at least one air supply assembly is arranged in the machine shell, the air supply assembly comprises a centrifugal fan and a volute arranged outside the centrifugal fan, and the centrifugal fan is configured to suck indoor air from the machine shell air inlet and bring the indoor air to be sent to the indoor environment again through the machine shell air outlets; the heat exchanger is arranged on an air inlet main air duct between the volute of the centrifugal fan and the machine shell air inlet, so that the entered indoor air through the machine shell air inlet is subjected to heat exchange with the heat exchanger; and the ventilating device is arranged below the air supply assembly, and comprises an air inlet module and a fan module communicating with the air inlet module, wherein the air inlet module is located at the lower part of the fan module, the at least one air supply assembly is further configured to suck at least part of outdoor fresh air discharged from the ventilating fan from the machine shell air inlet, and the outdoor fresh air is discharged from the machine shell air outlets after heat exchanging with the heat exchanger.

The invention relates to the field of fans, in particular to an air pipe and a fan system. The air pipe comprises a first pipe body and a second pipe body, which communicate with each other and are non-collinear. Gas passes through the first pipe body and the second pipe body in sequence; and as the connecting place of the first pipe body and the second pipe body forms a certain angle, in order toprevent the phenomenon of swirls, energy loss and exhaust pressure difference, a guide plate is arranged in the communicating place of the second pipe body and the first pipe body for removing the swirls and turbulent currents caused by the angle when the gas flows from the first pipe body to the second pipe body, and the gas transmission efficiency is improved. The invention further provides thefan system; and the fan system comprises a centrifugal ventilator and the air pipe. An exhaust port of the air pipe communicates with the centrifugal ventilator for providing stable and uniform air volume to the centrifugal ventilator. The fan system is high in working efficiency and low in energy loss.