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

The invention relates to a coprinus comatus cultivation base which is prepared from the following component raw materials: by weight, 60-70 parts of cottonseed shell, 8-10 parts of wheat straw, 10-25 parts of bean cake, 4-5 parts of purple potato powder, 1-2 parts of gypsum, 10-15 parts of modified plant ash, 8-10 parts of zeolite powder, 8-10 parts of ginseng leaf powder, 8-10 parts of Chinese wolfberry powder and 8-10 parts of red jujube powder, and in every cubic meter of the cultivation base, 200-500 g of the nutritional soil is added. Coprinus comatus cultivated by using the cultivation base has the characteristics of high contents of minerals, trace elements, vitamin B, vitamin C and amino acids, can reduce heavy metal pollution, has the effects of nourishing face and replenishing blood by long term consumption, and is quick in growth speed, high in yield and low in raw material cost.

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.

The invention discloses a fan blade, comprising a fan shaft (1) and several blades (2) evenly installed on the fan shaft, the blades (2) have a suction surface (21) and a pressure surface (22), the blade The top of (2) is bent toward the suction surface (21) or the pressure surface (22), forming a bending portion (23). The technical scheme of the present invention has notable features such as small air volume loss and low operating noise, and has the beneficial effects of simple process, low manufacturing cost and easy industrial production.

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.

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.

The invention discloses a rhododendron simsli cutting breeding method, comprising steps: (1) selecting mother shoots; (2) clipping cuttings; (3) treating the cuttings; (4) preparing a seedbed; (5) cutting; (6) building a sunshade; (7) and performing seedling growing management. Through clipping the cuttings and soaking in a nutrient solution, the rhododendron simsli cutting breeding method makes a cutting prepared rooting position obtain sufficient nutrition, and the cuttings are cut in a special plant culture matrix, the cuttings can root in advance. Moisturizing and seedling growing management is performed, and seedling growing time is greatly shortened, and survival rate is improved.

Heat exchanger packs having a first set of passageways for receiving a stream of ambient air and a second set of passageways for receiving a stream of warm water laden air is disclosed. The first set of passageways and second set of passageways being separate and permitting the warm water laden air stream to be cooled by the stream of ambient air so that water can condense out of the warm water laden air stream. Cooling tower configurations including the heat exchanger pack are disclosed for achieving effluent plume abatement, and capture of a portion of the effluent for replacement back into the cooling tower reservoir or as a source of purified water.

The invention discloses Podocarpus macrophyllus seedling growing special nutrient soil and a preparation method thereof. The nutrient soil contains raw materials in the following parts by weight: 50-70 parts of peat, 20-25 parts of river sand, 5-10 parts of edible fungi residues, 20-30 parts of coir fibers, 8-15 parts of modified plant ash, 10-15 parts of composted tea stems, 3-6 parts of vermiculite powders, 3-6 parts of mint powders, and 10-15 parts of chrysanthemum meals. The Podocarpus macrophyllus seedling growing special nutrient soil is balanced in nutrition, and is suitable for Podocarpus macrophyllus cultivation, and is long in fertilizer efficiency. The nutrient soil can provide nutrition needed by growth of Podocarpus macrophyllus, and reduces occurrence of pest and disease damages, enhances disease resistance and resilience of Podocarpus macrophyllus, and meanwhile soil structure is improved, soil permeability is improved, and plant newly grown roots are prevented from rotting. The nutrient soil is beneficial for formation of a root system, and raw materials are rich in sources and low in cost.

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.

The invention provides a small-leaf gardenia soilless culture base. The small-leaf gardenia soilless culture base is prepared by the raw materials of peat, wood bits, river sand, thoroughly-decomposed watermelon vine powder and modified plant ash of which the volume ratio is (20-30):(10-15): (10-12):(15-20):(5-10). In the preparation process, the plant ash is modified, watermelon vines are fermented and thoroughly decomposed at the same time, and then the modified plant ash and the fermented and thoroughly-decomposed plant ash are mixed according to a certain volume ratio to form the small-leaf gardenia soilless culture base. The small-leaf gardenia soilless culture base has the advantages of being light, high in ventilating performance and water maintaining performance and rich in nutrition. Because the plant ash is modified and granulated, the scattering performance and the alkalinity of the plant ash are effectively improved, blowing losses of the plant ash are reduced, and the economic benefits of waste material utilization are achieved.

The invention relates to a pressure-bearing cable capable of efficiently dissipating heat. The cable comprises a cable body and a shape-memory heat-conducting sheet sleeving the cable body. The shape-memory heat-conducting sheet extends in the length direction of the cable and has a spiral radial cross section in a static force state. The shape-memory heat-conducting sheet is composed of a first heat-conducting layer, a second heat-conducting layer and a sealing cavity defined by the first heat-conducting layer and the second heat-conducting layer. The first heat-conducting layer forms the spiral outer layer of the shape-memory heat-conducting sheet. The second heat-conducting layer forms the spiral inner layer of the shape-memory heat-conducting sheet. The pressure-bearing cable capable of efficiently dissipating heat can spontaneously and automatically change the corresponding heat dissipation area according to a heat generation condition of the cable so as to guarantee the stability of cable temperature, to prevent various damages and dangers due to over-high cable temperature, and to reduce a waste of electric power, and can capture external wind to dissipate the heat more efficiently by using the external wind. In addition, the cable has good anti-compression performance.

The invention relates to an umbrella, in particular to an umbrella which has the wind blowing function and comprises a stay bar; the lower end of the stay bar is provided with a handle, and the upper end thereof is provided with an umbrella enclosure. The umbrella is characterized in that the stay bar comprises a top section, a middle section and a bottom section; the upper end of the top section is provided with the umbrella enclosure; the lower end of the bottom section is provided with the handle; the middle section is detachably connected and arranged between the top section and the bottom section; and the middle section is provided with a horizontally arranged through hole which is internally provided with an axial fan. Compared with the prior art, as a high-pressure cavity and a low-pressure cavity are eliminated, the umbrella reduces air resistance and has small wind force loss. As the umbrella is used for a long time, when being destroyed, the middle section can be replaced separately, thereby achieving the goal of prolonging the service life. The invention provides a wind blowing umbrella which has small wind force loss and long service life.

The invention relates to a fan, in particular to a housing structure of a bladeless fan. The bladeless fan structure is characterized by comprising a housing; a passage capable of accommodating a fan component is disposed inside the housing; two ends of the passage are connected end to end; the center of the housing is provided with a through hole; the through hole is formed by enclosing and connecting the passage end to end; the front end face of the housing is provided with an air outlet; the rear end face of the housing is provided with an air inlet. The structure is simple in structure and fine in outlet effect, the housing rarely deforms, and the structure can be used with the fan component to form a bladeless fan low in operation noise; the technical problem that the housing of the prior bladeless fan needs a partition device for the air outlet, has high processing requirements, has many parts and produces resonance easily is solved.

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.

The invention relates to a filter device for a textile machine for the production of cross-wound spools, comprising a filter chamber, an intermediate chamber separated by a partition wall from the filter chamber and a vacuum source connected with the intermediate chamber, wherein at least one air passage opening is arranged in the partition wall and closed by a closure device in a setting way. According to the invention, at least one air passage opening (8) comprises an almost complete open inner cross section and laterally offsets relative to an intake ring (21) of the vacuum source (4) and a compact closed device (10) is arranged in the area of the air passage opening (8) and the closure device (10) is axially movably mounted on a vertical guide piece (14) between two terminal positions (I,II) and the air passage opening (8) is closed at the closure position and the closure device (10) is positioned at the second terminal position (II) outside the suction air flow acting in the area of the air passage opening (8).

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.

The invention discloses a large power wind generator with a lever in circular motion, which comprises a wind-drive wheel group, a transmission bar, a speed increasing mechanism and a generator set, wherein the wind-drive wheel group is composed of a plurality of wind-drive wheels, the wind-drive wheel is a semispherical steel frame covered with a windshield, directions of convex faces of the wind-drive wheels are equal and the wind-drive wheels are uniformly arranged on an annular track frame, the speed increasing mechanism and the generator set are disposed at the center of the annular track frame, the wind-drive wheel is connected with the power input end of the speed increasing mechanism through the transmission bar, and the power output end of the speed increasing mechanism is connected with generators of the generator set. The large power wind generator of the invention has high generating efficiency and large generating capacity, and is hard to be damaged under strong natural wind.

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.

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.

The invention discloses an air pipe unit joint structure. The air pipe unit joint structure comprises a cylindrical joint body and is characterized by further comprising an air volume regulation mechanism; the air volume regulation mechanism comprises a cylindrical fixed regulation ring; a plurality of sets of blade structures are uniformly arranged in the fixed regulation ring in the circumferential direction; each blade structure comprises a blade and a cross rod formed by perpendicularly and fixedly connecting a short rod and a long rod, the short rod of the cross rod is perpendicular to the blade and is mounted in the fixed regulation ring in a matched mode in the axial direction of the fixed regulation ring, the short rod is provided with a rotary pair, and other moving pairs are restrained by the fixed regulation ring; an annular regulation rotary ring is rotatably connected to the fixed regulation ring in a sleeved and matched mode; and the inner surface of the regulation rotary ring is engaged with the short ends of the long rods to drive the long rods to rotate along the short rods. The air pipe unit joint structure has the advantages that the structure is simple, the air flow can be regulated conveniently, and air flow loss can be reduced.

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.

The invention discloses a drying wardrobe and belongs to the technical field of drying wardrobes. The drying wardrobe comprises a wardrobe body and a wardrobe door; the wardrobe body comprises a heating area and a drying area, the drying area is arranged above the heating area, and an air outlet is formed in the top of the wardrobe body; a heater is arranged in the heating area; and the heating area intercommunicates with the drying area, and a water leakage structure is arranged between the heating area and the drying area. The drying wardrobe can be applied to hotel rooms, drying of clothesin the hotel rooms is realized, the drying wardrobe has double functions of storage and drying, the occupied space is reduced, the cost is low, and the drying wardrobe is suitable for large-scale popularization and use.

The invention relates to the field of acarus killing equipment, and discloses an acarus killing instrument which comprises a shell, a handle connected with the shell and used for providing holding power, a motor used for providing vacuumizing power and a dust cup used for containing dust. The acarus killing instrument is provided with a virtual cross section used for dividing the shell into two parts, the central axis of the handle is located on the virtual cross section, the virtual cross section is perpendicular to the placement surface of the acarus killing instrument, and the motor and thedust cup are located on the two sides of the virtual cross section respectively. According to the acarus killing instrument, the connecting structure of the dust cup, the motor and the shell is relatively simple, the dust cup is convenient to disassemble, the weight of the acarus killing instrument cannot be concentrated on one side of the acarus killing instrument, and the acarus killing instrument is convenient to use.

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.

The invention discloses an environment-friendly cabinet-type fan. The cabinet-type fan comprises a box body. The box body is divided into three layers, an outer layer is a steel layer with a thicknessof 8 mm; a middle layer is a gypsum board layer, and the thickness of the gypsum board layer is 15 mm; and an inner layer is a polymer damping material layer with a thickness of 12 mm. A zinc coatingfurther coats the outside of the steel layer, and the thickness of the zinc coating is 5 mm. All surfaces of the box body are welded and fixed. According to the invention, the box body is divided into multiple layers, the effect of reducing noise is achieved through polymer damping, gypsum boards and other materials, and environmental protection of the cabinet-type fan is achieved.

The invention relates to the technical field of material conveying fans, in particular to an efficient energy-saving fan for conveying medium-flow and medium-high-pressure materials. The efficient energy-saving fan comprises a fan body, the fan body comprises a base, a support is fixedly mounted on the top surface of the base, a motor is fixedly mounted on the top surface of the support, a shell is fixedly connected to the front side of the support, an impeller body is movably installed in the fan body and comprises a blade disc, the front end of the motor is fixedly connected with the blade disc, a first mounting groove is formed in the front face wall of the blade disc, and a second mounting groove is formed in the left side of the first mounting groove. According to the fan, a protection structure is arranged, the surfaces of the blades can be protected, the strength of the blades is effectively improved, the service life of the blades is prolonged, meanwhile, when a protection shell is replaced, only a single set needs to be replaced, the whole set does not need to be replaced, and therefore the maintenance cost is saved, and the productivity is improved.

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.

The invention discloses a large power wind generator with a lever in circular motion, which comprises a wind-drive wheel group, a transmission bar, a speed increasing mechanism and a generator set, wherein the wind-drive wheel group is composed of a plurality of wind-drive wheels, the wind-drive wheel is a semispherical steel frame covered with a windshield, directions of convex faces of the wind-drive wheels are equal and the wind-drive wheels are uniformly arranged on an annular track frame, the speed increasing mechanism and the generator set are disposed at the center of the annular trackframe, the wind-drive wheel is connected with the power input end of the speed increasing mechanism through the transmission bar, and the power output end of the speed increasing mechanism is connected with generators of the generator set. The large power wind generator of the invention has high generating efficiency and large generating capacity, and is hard to be damaged under strong natural wind.

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.

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.