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53results about How to "Reduce wind loss" patented technology

Modified corn cob cultivation matrix and its preparation method

The present invention provides a modified corn cob cultivation matrix including the following component raw materials: in volume ratio, 55-65 parts of modified corn cob, 10-15 parts of perlite, 10-15 parts of vermiculite powder, 10-15 parts of peat and 5-10 parts of modified plant ash. During preparation, firstly, plant ash and corn cob are modified, and then mixed with other components according to the requirements of the formula. The cultivation matrix of the present invention is reasonable in raw material ratio, is prepared by modifying the plant ash and meanwhile using an enzymic method to modify corn cob fiber, so that the sponginess, air permeability, water retention, heat and moisture retention and nutrient content of the prepared cultivation matrix are improved significantly, the plant ash is modified for granulation, so that the flying property and alkalinity of the plant ash can be effectively improved, the windage loss of the plant ash is reduced, the economic benefits of the utilization of waste products can be realized, the prepared cultivation matrix is suitable for cultivation of various plants, the transplanting survival rate is high, the slow seedling time after transplanting is short, the survival rate is high, and the incidence of diseases and insect pests is low.
Owner:HEFEI QIANXI MOUNTAIN VILLA AGRI ECOLOGICAL PARK

Heat absorbing tower with natural ventilation cooling function

InactiveCN111578736ARealize the integration of two towers into oneReduce electricity consumptionSteam/vapor condensersCooling towerNatural ventilation
The invention belongs to the field of solar power generation and discloses a heat absorbing tower with a natural ventilation cooling function. The heat absorbing tower with the natural ventilation cooling function comprises a tower barrel, a heat absorbing tower equipment room, a steam pipe and a condensed water pipe; the heat absorbing tower equipment room is arranged at the top end of the towerbarrel; an air outlet is formed in the side wall of the upper part of the tower barrel; an air inlet is formed in the side wall of the bottom end of the tower barrel; an air cooling heat radiator system is arranged in the air inlet; and the steam pipe is connected with the condensed water pipe through the air cooling heat radiator system. For a solar power plant, a heat absorbing tower and a cooling tower can be combined into one by using a design of a system for using a tower barrel of a high-rise building heat absorbing tower; a natural ventilation cooling system can be adopted in the solarpower plant to reduce the station service power consumption rate and increase the profit of the solar power plant; as high buildings are not additionally constructed, the shielding loss is reduced; and meanwhile, the project cost is reduced, and the floor space is reduced.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP

Natural-draught brine cooling tower

The invention discloses a natural-draught brine cooling tower. The natural-draught brine cooling tower comprises a drift eliminator, a water distribution device, a stuffing area, a lambada-shaped support, a water collecting tank, a tower casing and a brine temperature-concentration control device. The brine is heated by a waste heat source, and the hot brine is sent to the water distribution device in the tower casing through an intake and riser pipe. The hot brine is uniformly sprayed on the stuffing by the water distribution device and exchanges heat with the intake air from the lambada-shaped support at the lower part of the tower casing, and the temperature and the concentration of the brine are adjusted to enable the saturated evaporation pressure to be matched with the vapor partial pressure in the air so as to restrain the evaporation and the loss of the water, thereby achieving the purpose of saving water. After cooled, the brine enters the water collecting tank, and returns to the waster heat source via a circulation brine pump for further circulation. The hot air enters the upper part of the tower casing with drifts eliminated by the drift eliminator, and then is exhausted to the upper air. The flow of the air is promoted by the chimney effect generated by the tower casing. By using the brine as the cooling medium, in addition to the function of saving water, the invention can also cool the brine to almost the environmental temperature in winter, thereby achieving the frost prevention effect. The invention can be widely used in the power field, the chemical industry field and the metallurgy field in the water-deficient area.
Owner:ZHEJIANG UNIV

Air conditioner indoor unit

The invention provides an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a centrifugal fan, a heat exchanger and a draining air guiding device, wherein the shell is provided with a first air inlet, a second air inlet and an air outlet; the first air inlet is formed in the upper portion of the shell; the air outlet and the second air inlet are formed in the front side and the rear side of the lower portion of the shell respectively; the centrifugal fan is arranged in a containing space inside the shell and arranged to suck environmental air from the environment around the first air inlet and urge the air to flow to the lower portion of the shell; the heat exchanger is arranged on an air inlet channel between the centrifugal fan and the first air inlet in the shell; the draining air guiding device is arranged on the lower portion of the containing space inside the shell and arranged to mix airflow from the centrifugal fan and airflow from the second air inlet and blow out the mixed airflow through the air outlet. A middle air guiding ring of the draining air guiding device is formed in a mode that the connecting line of the circle center of the projection line of the rounded top contour of the middle air guiding ring and the midpoint of the projection line of the front end edge of the middle air guiding ring forms a first included angle with the projection line of the front end edge of the middle air guiding ring. The air conditioner indoor unit is capable of increasing the air supplying amount of an air conditioner.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Pressure-bearing cable capable of efficiently dissipating heat

The invention relates to a high-efficiency heat-dissipating pressure-bearing cable, comprising a cable body and a shape-memory heat-conducting sheet sheathed outside the cable body; the shape-memory heat-conducting sheet extends along the length direction of the cable and has a spiral radial cross-section under a static state The shape-memory heat-conducting sheet is composed of a first heat-conducting layer, a second heat-conducting layer, and a sealed cavity surrounded by the first heat-conducting layer and the second heat-conducting layer; the first heat-conducting layer forms a spiral form of the shape-memory heat-conducting sheet The outer layer, the second heat conduction layer forms the spiral inner layer of the shape memory heat conduction sheet; the high-efficiency heat dissipation pressure-bearing cable can automatically and automatically change the corresponding heat dissipation area according to the heat generation of the cable, thereby effectively ensuring the stability of the cable temperature , to prevent various damages and dangers caused by excessive temperature of the cable, reduce the waste of electric energy, and can capture the external wind, and use the external wind to dissipate the heat of the cable more efficiently; in addition, the cable has good compressive performance.
Owner:郑行良

Fan-pendulum-type high-pressure blower

The invention discloses a fan-pendulum-type high-pressure blower. The fan-pendulum-type high-pressure blower comprises a swinging converter (1) and a swinging draught fan (2). According to the technical scheme, a device consists of the swinging converter and the swinging draught fan, the swinging converter converts the circumference rotation of an input shaft into the reciprocating rotation of an output shaft through a gear drive swinging rod and a horseshoe-shaped rack, the swinging draught fan is provided with an air box, a draught fan shaft, a blade, an air channel, an air suction valve and an air exhaust valve, the inner cavity of the cylindrical air box is divided into a left air chamber and a right air chamber by the blade, the draught fan shaft is connected with the output shaft of the swinging converter, the draught fan shaft drives the blade to swing reciprocally in the air box along a fan-shaped trajectory, and the volumes of the left air chamber and the right air chamber are changed reciprocally in an alternating way; external air is sucked into the left air chamber and the right air chamber by the air suction valve through the air channel alternately, and the air compressed by the blade which is swung reciprocally is extruded out alternately from the left air chamber and the right air chamber through the air channel and the air exhaust valve. Therefore, the aims of improving air pressure, reducing air loss and noises, and reducing cost of the high-pressure blower are fulfilled.
Owner:徐家业

Ground rotation type carbon dioxide colloid gas aphrons extinguishing bomb

The invention discloses a ground rotation type carbon dioxide colloid gas aphrons extinguishing bomb. The ground rotation type carbon dioxide colloid gas aphrons extinguishing bomb comprises a bomb body internally provided with a foam extinguishing agent and a control device used for controlling the bomb body to spray out the foam extinguishing agent; a cavity containing the foam extinguishing agent is arranged in the bomb body, a feeding valve is arranged at the tail of the bomb body, a plurality of tail wings are arranged on the side wall of the tail of the bomb body, and the control device comprises a positioning ring divided into two portions, a pressing sleeve, a stand column, a bottom disc and a supporting rod, nozzles are evenly formed in the position, close to the head end and located in the middle of the thickening portion, of the bomb body, and the nozzles are sealed through a seal plug; the upper portion of the thickening portion of the bomb body is sleeved with the positioning ring, and the positioning ring is located in the pressing sleeve and is connected with the pressing sleeve through a bolt, and the pressing sleeve is arranged on the bomb body in a sleeving manner and is pressed on the outer portion of the seal plug, the bottom end of the pressing sleeve is connected with the top end of the bottom disc through the stand column, and the center of the bottom of the bottom disc is fixedly connected with the supporting rod. The extinguishing bomb can be stored for a long time, the extinguishing agent can be evenly sprayed, the compact, durable and fireproof isolation effect can be generated, and rapid extinguishing is obtained.
Owner:NANYANG NORMAL UNIV

Tissue culture chamber capable of precisely controlling temperature, humidity and illumination intensity

The invention provides a tissue culture chamber capable of precisely controlling the temperature, humidity and illumination intensity.The tissue culture chamber comprises a chamber body, a floor, a door, air guide walls, a two-sided air supplying fan, a flow dispersion hood, tissue culture racks, a control cabinet, a temperature, humidity and illumination intensity sensor, a humidifier, a heater and a cooler unit.By means of the tissue culture chamber, the temperature, humidity and illumination intensity of the tissue culture chamber can be controlled precisely, three-color LED lamp panels are adopted as LED lamp panels of the tissue culture chamber, light waves in red, green and blue can be emitted, the illumination intensity luminance of the three types of colors are independently adjustable, and the tissue culture chamber can be used for researching the influence of different spectrum proportions on plant physiological and biochemical characteristics.A flow dispersion hood structure is added to an air inlet of the fan, the filtering effect is achieved, unclean air cannot enter an air duct for circulation any more, and cleanliness of air is improved.Air-out is conducted leftward and rightward through the two-sided air supplying fan, and independent cavities are formed, greater pressure is formed, and air-out is conducted more powerfully.Each flow guide wall is arranged at an air outlet of the corresponding culture rack in the corresponding cavity, so that air power is concentrated to the air outlets of the culture racks, air power losses are reduced, and air-out uniformity is improved.Through heat insulation design of the LED lamp panels between each storage layer and a storage space at the lower layer, the dew formation phenomena of tissue culture bottles can be reduced.
Owner:福建九圃生物科技有限公司

Direct-connection integrated screw machine-driven asynchronous motor

The invention relates to a direct-connection integrated screw machine-driven asynchronous motor. The asynchronous motor comprises a screw-type air compressor host, a flat key, a male rotor machine head shaft bulge, a motor rotor, a motor cylinder, a stator coil and an air guide end cover, wherein the flat key is arranged on the male rotor machine head shaft bulge; the motor rotor is arranged on the male rotor machine head shaft bulge in a sleeving manner; the flat key is arranged in the motor rotor; the stator coil sleeves the motor rotor; the motor cylinder sleeves the stator coil; the two sides of the motor cylinder are connected with the screw-type air compressor host and the air guide end cover through flanges, respectively; a compression device is arranged between the male rotor machine head shaft bulge and the motor rotor; the male rotor machine head shaft bulge and the motor rotor can be positioned and fixed relative to each other through the compression device; rotating wheels are arranged at one or two ends of the motor rotor; a plurality of through holes are formed in the motor cylinder and correspond to the rotating wheels. According to the direct-connection integrated screw machine-driven asynchronous motor, the total power loss is reduced, the efficiency is improved, effective drive torque is increased, and noise is reduced.
Owner:XINLEI COMPRESSOR CO LTD

Air-cooled heat-dissipation axial flow cooling fan for electronic equipment

The invention discloses an air-cooled heat-dissipation axial flow cooling fan for electronic equipment, and aims to provide an axial flow fan which is high in efficiency, low in vibration, large in air volume, high in back pressure and low in noise. According to the technical scheme, a machine shell is a double-funnel-shaped inclination angle air duct machine shell in which a backward air draft air duct is wide in the front end, narrow in the middle and wide in the rear portion, an inclination angle inner wall is formed, and all middle sections change according to a linear rule; blades are offront bending edge types; axial flow sweeping type blades are formed by suction curved surfaces with upper inclination angles of at least -14 degrees and pressure curved surfaces with lower inclination angles of at least -11 degrees; spiral radian flow guide stationary blades matched with the air flow direction of the fan and the air duct convert kinetic energy generated by winding back airflow ofan impeller into pressure; the inclination angle inner wall of the machine shell prevents blade tops of the fan blades from leaking; and the pressure of the inner wall of the machine shell is cut toform forced air flow with the axial flow sweeping type blades, so that separation of boundary layers of the fan blades is prevented, and the air flow is sent out.
Owner:10TH RES INST OF CETC

A shaft sealing device for a high speed turbine-generator used in orc

The invention discloses a main shaft sealing device of a high-speed turbine-generator applied to an ORC (organic Rankine cycle). The main shaft sealing device is characterized by comprising a high-speed turbine expander, a high-speed generator, a fastening bolt, a high-speed shaft seal and an air sealing and cooling system, wherein the high-speed shaft seal is arranged on a main shaft on one side of the impeller back of an impeller of the high-speed turbine expander, and the steam leakage of an organic working medium is reduced through contact sealing; according to a core technology adopted by the air sealing and cooling system, a high-pressure air chamber is built on the back side of the high-speed shaft seal, and the pressure of the high-pressure air chamber is regulated through a pressure relief valve; the air pressure of the high-pressure air chamber supplies back pressure to the high-speed shaft seal, and the high-pressure air chamber has an air sealing function; air flowing in the high-pressure air chamber can be used for cooling the high-speed shaft seal and taking away a trace amount of leakage from the high-speed shaft seal. According to the main shaft sealing device, the problems of low thermal safety, over-large ventilation loss and friction loss and the like of the high-speed generator caused by blow-by of the main shaft can be solved.
Owner:TIANJIN UNIV

Garment preparation method

The invention discloses a garment preparation method. Cleaning work stations are arranged at the downstream positions of all sewing work stations on a hanging system; each cleaning work station comprises an entrance branch rail, an exit branch rail and a conveying chain; a down cleaning machine is arranged below the conveying chain; the down cleaning machine is provided with a channel for a garment to pass through; and three sliding doors capable of being opened and closed are arranged in the channel in the access direction of the garment. The sewn garment enters the cleaning work stations through a rail transfer mechanism and enters the channel under the driving of the conveying chain, after the garment completely enters the channel, the sliding doors at the two ends of the channel are closed, and wind flowing in from the position above the channel sucks away sundries on the garment; and when the garment moves to the tail of the channel, the sliding door in the channel is closed, the channel is divided into a first cavity and a second cavity, the garment is located in the second cavity without wind power at the moment, then the sliding door at the tail end of the channel is opened, and the garment is moved out of the channel through the conveying chain.
Owner:NINGBO SUNRISE IND AUTOMATION CO LTD

A tissue culture chamber that can precisely control temperature, humidity and light intensity

The invention provides a tissue culture chamber capable of precisely controlling the temperature, humidity and illumination intensity.The tissue culture chamber comprises a chamber body, a floor, a door, air guide walls, a two-sided air supplying fan, a flow dispersion hood, tissue culture racks, a control cabinet, a temperature, humidity and illumination intensity sensor, a humidifier, a heater and a cooler unit.By means of the tissue culture chamber, the temperature, humidity and illumination intensity of the tissue culture chamber can be controlled precisely, three-color LED lamp panels are adopted as LED lamp panels of the tissue culture chamber, light waves in red, green and blue can be emitted, the illumination intensity luminance of the three types of colors are independently adjustable, and the tissue culture chamber can be used for researching the influence of different spectrum proportions on plant physiological and biochemical characteristics.A flow dispersion hood structure is added to an air inlet of the fan, the filtering effect is achieved, unclean air cannot enter an air duct for circulation any more, and cleanliness of air is improved.Air-out is conducted leftward and rightward through the two-sided air supplying fan, and independent cavities are formed, greater pressure is formed, and air-out is conducted more powerfully.Each flow guide wall is arranged at an air outlet of the corresponding culture rack in the corresponding cavity, so that air power is concentrated to the air outlets of the culture racks, air power losses are reduced, and air-out uniformity is improved.Through heat insulation design of the LED lamp panels between each storage layer and a storage space at the lower layer, the dew formation phenomena of tissue culture bottles can be reduced.
Owner:福建九圃生物科技有限公司

Coking furnace

The invention discloses a coking furnace which is safe, environment-friendly and stable, is suitable for continuous scale production, and is used for clean burning operation of coal in the clean coal industry. The coking furnace consists of air inlets 2 and 5 of a C-shaped elbow pipe of between 45 and 90 degrees, air inlet pipes 1 and 6, air chambers 3 and 4, a circulating water cooling layer 7 and a combustion chamber 8, wherein the air inlet pipes 1 and 6 are straight pipes with the diameter of between 30 and 70mm, pass through the circulating water cooling layer 7, and are communicated with the combustion chamber 8 and the upper and lower air chambers 4 and 3; in the air chambers 3 and 4, the air inlets 2 and 5 of the C-shaped elbow pipes of between 45 and 90 degrees having the same diameter as that of the air inlet pipes 1 and 6 are firmly welded with the air inlet pipes 1 and 6 respectively; air is supplied to the combustion chamber 8 by an upper exhaust pipe and a lower exhaust pipe at two sides; and air entering an air supply chamber can smoothly flow into the air inlets of the C-shaped elbow pipe of between 45 and 90 degrees, and flows into the furnace chamber of a combustion furnace through the air inlet pipes. The air inlets of the C-shaped elbow pipe ensure small wind power consumption, the air quantity entering the furnace chamber is uniform, and raw coal in the furnace is combusted uniformly, so the produced semi-coke has stable quality, the production efficiency is high, and energy and resources are saved.
Owner:吕天文
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