56results about How to "Stable wind pressure" patented technology

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 provides an air supply method of an industrial furnace. When air pressure is required to be increased, opening degrees of air doors of frequency conversion fans are increased; when the air pressure is required to be further increased, opening degrees of air doors of constant-speed fans are increased; when the air pressure is still required to be increased, working frequency of each frequency conversion fan is increased; when the air pressure is required to be decreased, the working frequency of each frequency conversion fan is decreased; when the air pressure is required to be further decreased, the opening degrees of the air doors of the frequency conversion fans are decreased; and when the air pressure is still required to be decreased, the opening degrees of the air doors of the constant-speed fans are decreased. The air supply method of the industrial furnace has the advantages as follows: for the fan units operating in an air door adjustment mode, only part of fans are subjected to frequency conversion renovation; and on the basis that the air pressure is stably adjusted through frequency conversion, the part of fans and other fans are controlled coordinately and combined to the overall fan unit network for stable operation.

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 method and device for controlling a refrigerating device, and a refrigerating system, wherein the method comprises the steps of: detecting a first wind pressure and a second wind pressure, wherein the first wind pressure is a wind pressure of a gas exhausted by the refrigerating device, the second wind pressure is a wind pressure of gas exhausted by a refrigerated device, the refrigerating device and the refrigerated device are positioned in a closed space, the refrigerating device is used for sucking the gas exhausted by the refrigerated device and conveying the refrigerated gas to the refrigerated device; and controlling the rotating speed of an air blower of exhausting the gas of the refrigerating device according to the detected difference of the first wind pressure and the second wind pressure. Through detecting and comparing the wind pressure of the gas exhausted by the refrigerating device and the wind pressure of the gas exhausted by the refrigerated device, and controlling the rotating speed of the air blower of the refrigerating device according to a comparison result, the rotating speed of the air blower of the refrigerating device is regulated and the actual refrigerating effect of the refrigerated device is not influenced. The stability of the wind pressure in the closed space can be ensured and the problem of resource waste is avoided.

The invention relates to an air conditioner indoor unit which comprises a shell, a heat exchange device, a first centrifugal fan, a second centrifugal fan, a first axial flow fan set, a second axial flow fan set, a first ion air generation device and a second ion air generation device. The shell is provided with an air inlet, lower air outlet and two lateral air outlets, the heat exchange device is arranged in the shell and configured to exchange heat with air flowing through the shell, and the first centrifugal fan and the second centrifugal fan are arranged on the rear side of the heat exchange device and configured to promote the air after going through heat exchange by the heat exchange device to respectively flow towards the lower air outlet, the first lateral air outlet and the second lateral air outlet; the first axial flow fan set and the second axial flow fan set are arranged on flowing paths from the two centrifugal fans to the two lateral air outlets respectively and configured to promote air from the two centrifugal fans to respectively continue to flow towards the two lateral air outlets; the first ion air generation device and a second ion air generation device are respectively arranged on flowing paths from the two axial flow fan sets to the two lateral air outlets and configured to promote air from the two axial flow fan sets to respectively continue to flow towards the two lateral air outlets.

Disclosed is a spraying and powder making device. The spraying and powder making device comprises a spraying tower, a first cyclone separator, a shell-and-tube heat exchanger, a high-pressure draught fan, a second cyclone separator and an air inlet pipe, wherein a first air outlet is formed in the upper end of the spraying tower; a first air inlet, a second air outlet and a first material return opening are formed in the first cyclone separator, and the first air inlet is connected with the first air outlet of the spraying tower; the upper end of the shell-and-tube heat exchanger is connected with the second air outlet of the first cyclone separator, and a discharge port is formed in the lower end of the shell-and-tube heat exchanger; an air absorbing opening and a blowing opening are formed in the high-pressure draught fan, and the air absorbing opening is in butt-joint connection with the discharge port of the shell-and-tube heat exchanger; a second air inlet and a second material return opening are formed in the second cyclone separator; a pipe opening at one end of the air inlet pipe stretches to the interior o a cavity in the lower portion of the spraying tower, the other end of the air inlet pipe is connected with the blowing opening of the high-pressure draught fan, and the second air inlet, the second material return opening and the first material return opening are respectively and fixedly connected with the surface of the pipe body of the air inlet pipe. The spraying and powder making device avoids product loss and pollution between environments, improves cooling efficiency and working efficiency and reduces manufacturing cost.

A closed loop type wind power generation system is characterized by comprising an annular air barrel (1), at least one air blower array (2) and a plurality of wind driven generators (3). The air blower arrays (2) are arranged in the annular air barrel and are used for enabling air in the annular air barrel to achieve single-direction circulating flow and generate wind in the annular air cylinder; wherein the wind can drive blades of the wind driven generators to rotate. The pressure and speed of the wind are maintained to be within the set proportionality range under the action of the air blower arrays so as to ensure the power generation efficiency and stability of the wind driven generators (3). The wind driven generators (3) are arranged in the annular air barrel (1) and are driven by the blades to rotate to generate power. The closed loop type wind power generation system has the advantages of being capable of continuously generating power, and being clean and environmentally-friendly.

The invention provides a hydraulic driving device for a draught fan of a pneumatic type seeding machine, relating to the technical field of pneumatic type seeding machines. The hydraulic driving device is characterized in that a power output shaft of a tractor is connected with an oil pump and drives the oil pump to rotate, power oil supplied by the oil pump is conveyed to a hydraulic motor by an oil pump outlet pipe and a hydraulic motor inlet pipe, the hydraulic motor drives the draught fan for seeding to rotate, and is communicated with an oil tank by a hydraulic motor outlet pipe, a hydraulic control element is arranged in a hydraulic system, and the running speed of the draught fan for seeding is controlled by the hydraulic control element. The hydraulic driving device has the beneficial effects of being matched with the tractor conveniently, ensuring the stable rotation of the hydraulic motor for driving the draught fan for seeding without limitation of the size of an oil valve of the tractor to finally achieve ideal seeding, and overcoming the phenomena of unstable wind power, seedling shortage and seedlingless ridges caused by turning, stopping, machine tool lifting and the like of the existing domestic pneumatic type seeding; besides, the hydraulic driving device has the characteristics of simple and compact structure, small occupied area, convenience in adjustment and reliability in working.

The invention discloses an endless grate, in particular to a big wind bin and small wind catcher crossbeam-type endless grate. The endless grate comprises a frame consisting of a middle beam (2), an upper lead rail (1) and a lower lead rail (12); a furnace chain connected with a drive device is arranged on the frame; the endless grate is characterized in that: the lower part of the furnace chain on the upper part is provided with a wind bin (11) communicated with the furnace chain; a wind chest (14) communicated with the wind bins (14) is arranged on the whole side of the grate; the wind chest (14) is connected with a wind supply device. The endless grate changes the mode that each wind chamber respectively supplies wind in the prior art, thereby greatly reducing wind speed, stabilizing wind pressure, ensuring the even wind supply to the furnace chain, improving the burning quality of fuel and saving energy.

The invention discloses a steady flow cooler, which relates to the steady flow cooler for cooling and conveying high-temperature cement clinker and the like. The steady flow cooler comprises a bracket, a fixed grate bed and a movable grate bed which are engaged on the bracket, wherein the fixed grate bed and the movable grate bed are provided with an air supply device respectively; a drive device and a guide device are arranged below the movable grate bed; the fixed grate bed has a box-type structure and is partitioned into a plurality of units by partition boards, a front grate plate arranged obliquely downwards is arranged above each unit, a plurality of adjacent front grate plates form an area, an independent air supply device is arranged below each area, and the air pressure and the air quantity of the each air supply device are controlled by a control unit; and the movable grate bed comprises a plurality of movable longitudinal beams arranged on the bracket and driven to run by the drive device and the guide device, a plurality of independent rear grate plates are arranged on each movable longitudinal beam, and an air supply device with adjustable air pressure and air quantity is arranged below the rear grate plates respectively. The steady flow cooler greatly improves the cooling efficiency and the cooling quality of the cement clinker.

The embodiment of the invention discloses a fan control method in ultraviolet curing equipment and the ultraviolet curing equipment. The fan control method comprises the steps that a target wind pressure value of an ultraviolet curing lamp holder in the ultraviolet curing equipment is obtained, a first wind pressure value in the ultraviolet curing lamp holder at present is detected; based on the target wind pressure value and the first wind pressure value, the control frequency of a fan corresponding to the ultraviolet curing lamp holder is determined according to a preset closed-loop controlalgorithm; and based on the control frequency, the fan is controlled to supply air into the ultraviolet curing lamp holder. By means of the fan control method in the ultraviolet curing equipment, theair pressure in the ultraviolet curing lamp holder can be kept stable.

The invention discloses an intelligent aeration control device and method for a sewage plant, and belongs to the technical field of water treatment control. The device includes three units, wherein the first unit is an aeration system which comprises a spiral-flow aerator (1), a variable-frequency aeration fan (2), an aeration main pipeline (3), an aeration branch pipeline (4), an aeration pipeline branch (9), an aeration connecting pipeline (10) and an electric adjusting valve (5); the second unit is an ammonia nitrogen measuring system that comprises an ammonia nitrogen probe (6) and an ammonia nitrogen measuring instrument (7); and the third unit is a control system that comprises an ammonia nitrogen data acquisition system, an analysis system and a regulation and control system, and the ammonia nitrogen data acquisition system, the analysis system and the regulation and control system are integrated together to form a control device (8). On the premise that theoretical calculation of the aeration rate is oriented, ammonia nitrogen required by the emission standard serves as a water outlet end ammonia nitrogen control point, and the aeration rate is regulated and controlled through the on-way ammonia nitrogen concentration in the aerobic tank, so that the nitrification process is optimized, and intelligent aeration control over the aerobic tank is achieved.

The invention relates to blowers, and aims to provide a blower for conveying powder raw materials and a manufacturing method thereof. According to the technical scheme, the blower is characterized bycomprising a machine frame, a blower box and a driving motor, wherein the blower box is detachably connected to one side of the machine frame, the driving motor is detachably connected to the machineframe, an output shaft of the driving motor extends into the blower box and is connected with a blower impeller, the blower impeller is located in the blower box, an air inlet is formed in one surface, away from the machine frame, of the blower box, an air outlet is formed in the top of the blower box, the blower impeller comprises impeller covers and blades, two impeller covers are oppositely arranged, the blades are located between the two impeller covers, the two surfaces, facing the impeller covers, of each blade are both and fixedly connected with riveting pieces, riveting holes are formed in the impeller covers, and the riveting pieces penetrate through the riveting holes and are bent and pressed on the impeller covers. The blower for conveying the powder raw materials has the advantages of reducing the loss of raw materials and improving the utilization rate of the raw materials.