264results about How to "Reduce wind pressure" patented technology

The invention discloses a circulating sludge biological fermentation tower which comprises a tower body, an openable tower cover, a storage tank and a plurality of rotatable fermentation devices, wherein the openable tower cover is arranged on the top of the tower body; the storage tank is arranged at the bottom of the tower body; the rotatable fermentation devices are arranged in the tower body in parallel; the fermentation devices divide an inner cavity of the tower body into a plurality of layers of fermentation bins along the axial direction; the lower part of each layer of fermentation device is provided with a ventilating oxygen supply pipeline communicated with a blower; the upper part of each layer of fermentation device is provided with an air outlet pipeline communicated with aninduced draft fan and a monitoring device; the monitoring device is controlled by a control room; and a mechanism for driving the fermentation devices and the tower cover to move, the blower and the induced draft fan are all controlled by the control room. The invention also discloses a circulating sludge biological processing system and a processing method. By the circulating sludge biological fermentation tower, the circulating sludge biological processing system and the processing method, industrial biological fermentation desiccation treatment can be continuously and stably carried out onsludge under the conditions of high efficiency and low energy consumption.

The invention relates to an automatic sun tracking device, and belongs to the technical field of solar utilization. The device comprises a condensation module array, a drive mechanism, a tracking control circuit, a sensor and the like. A set of control and drive mechanism controls and drives hundreds of to tens of thousands of sunlight receiving devices to track the sun; and the receiving devices comprise a condensation or non-condensation photovoltaic cell assembly, a heat energy receiving device, a sunlight reflector, a sunlight refractor and the like and are used for photovoltaic power generation or heat energy application and used for reflecting or refracting the sunlight to a receiver on a tower for photovoltaic power generation or heat energy application and the like. The device has simple structure, is not easy to deform, has good wind resistance, high tracking precision and low cost, and can be used for various solar utilization systems.

The invention relates to an aerogel composite board and a preparation method thereof. The composite board comprises a panel, a bottom board, and skeletons which are positioned between the panel and the bottom board and are crossed to form a plurality of cavities. The preparation method comprises the steps of coating a binding agent at one side of the bottom board so as to bind the skeletons with the bottom board; filling the cavities of the skeletons with silica aerogel; coating a binding agent at one side of the panel and binding with the skeletons filled with the silica aerogel. The aerogel composite board and the preparation method thereof have the advantage that the mechanical strengths of the panel, the bottom board and the whole composite board are improved by adopting a structure of enabling the skeletons as a center and compounding boards up and down; the coefficient of thermal conductivity of is reduced to 0.010-0.020 (W/m.k) through the aerogel evenly distributed in the cavities of the skeletons, so that the composite board is superior to various heat-insulating materials, and is next only to a vacuum insulating board; The application range of the composite board application scope is widespread, such as industry, the external walls of buildings, interior decoration, traffic transportation vehicles and ships.

A device designed for the removal of soot dust of fuel oil combustion. The device is based on the two-stage wet-electrostatic dust removal-desulfurization device, with different numbers of layers of the mesh screen being installed in the wet type dust removal-desulfurization device. This device not only has a relatively high efficiency in both of common dust removal and desulfurization, but also can remove the black smoke from fuel oil combustion efficiently with a removal efficiency ≧99%, and thus solves the present technical problem in the treatment of in the treatment of soot dust of fuel oil combustion. At the same time, with the advantages of cheaper construction cost and economy, the device of the present invention overcomes the disadvantages of the traditional bag filter process, which is expensive and cannot operate desulfurization simultaneously.

A solar tracker is provided to fix an altitude angle until the altitude of the sun secedes from a predetermined range after matching the altitude through once driving of one shaft that tracks the altitude angle and to drive only the other shaft that tracks an east-west azimuth angle in daily repetition in a state where the altitude angle of the sun, which is repeatedly changed according to seasons of the year in the range of the winter solstice having the lowest altitude angle and the summer solstice having the highest altitude angle, has an extremely small diurnal change, whereas the azimuth angle of the sun is repeatedly changed in one direction, that is, from sunup to sundown, in a day. Accordingly, consumption of firm power of a driving unit for tracking the sun can be minimized, and the operating and management costs of the device can be reduced.

The invention discloses a treatment method of high iron manganese and ammonia nitrogen compound pollution low temperature underground water. Natural zeolite is used as a raw material, a zeolite-basedmaterial is loaded with manganite, through impregnation of enrichment culture liquid, the material is loaded with microorganisms of nitrifying bacteria, iron and manganese oxidizing bacteria and the like, so that a multifunctional compound material of the zeolite loaded with the manganite and the microorganisms is obtained, a filter candle is filled with the multifunctional compound material, sequencing batch running is conducted according to four stages of inlet water adsorption, water emptying, air blasting for bio-regeneration and nitrate washing, meanwhile, iron, manganese and ammonia nitrogen in the low temperature underground water are purified, and thus effluent reaches the domestic drinking water quality standards.

A wind turbine produces a unique pressure profile downstream of the wind turbine. This pressure profile reflects the structure of the wind turbine, which includes a shroud that has mixing lobes on a trailing edge thereof. The pressure profile includes high pressure and low pressure regions corresponding to the number and location of the mixing lobes on the shroud.

The invention provides a battery container heat management system, comprising a box, an air conditioner, an air duct, a battery rack and a fan, wherein an air outlet gap of the air duct is arranged ata front end of the battery rack for outputting air flow, and a fan is arranged at a back end of the battery rack for extracting air flow. The whole heat management system adopts the circulation modeof front air outlet and back air return, the air flow is uniform, the required air pressure is small, the energy is saved, waterproof and dustproof effects are achieved, the temperature control effectis good, and the high rate current (fast) charging and discharging can be realized.

The invention relates to a new blade structure of a wind generator, in particular to a wing span type self-adapting blade structure. The wing span type self-adapting blade structure comprises a main shaft, a support rod, a blade support frame, an auxiliary support frame, a blade set, a connecting device, a limiting rod, a counter weight module and a traction device. Under the action of the wind power and the gravity, the wing span type self-adapting blade structure looks like the flapping wings of the birds, the shape of the blade can be automatically adjusted according to the wind speed, and the shape of the blade is converted among the statuses of 'wing spanning-wing fanning-wing spanning-wing fanning...'. The wing span type self-adapting blade structure keeps a larger wind application area under the status of low wind speed, thereby being easy to start up, and reduces the wind resistance of the blade by automatically converting the statuses under the status of high wind speed, thereby avoiding the overhigh rotation speed. The wing span type self-adapting blade structure is exquisite in conception, ingenious in structure, and simple in installation, so that the difficulty of the power control of a wind power fan is solved, and a creative contribution is offered to further reduce the doorsill of the wind generation and the improve the quality of the wind power.

The invention discloses a coating drying technology and device thereof. The technology is used for drying a coating by combining a microwave drying technology with a circulating air-supply type drying technology, and a mode of heating the microwave dried coating from inside to outside is combined with a mode of drying the microwave dried coating with circulating air from outside to inside so that the purpose of more rapidly thoroughly drying the coating is achieved. The coating drying technology disclosed in the invention has the characteristics of uniform heating, high drying speed, high heat efficiency, good product quality and the like; and the circulating air can be used for immediately eliminating a solvent evaporated by the coating in a microwave heating process, thus the problems of local overheating caused by high microwave heating speed and incapability of immediately eliminating the solvent is avoided, the quality of the coating is ensured, and the thorough and uniform drying effect is obtained. The device has simple structure, can obtain better drying effect of the coating, and can improve the drying speed, thereby greatly saving the production period, improving the production efficiency and being capable of effectively avoiding microwave leakage.

The invention discloses a porous glass plate and structures adopting the porous glass plate, which adopt the technical scheme that: the porous glass plate is provided with pores, the pores are perforated in a thickness direction and are in regular or irregular distribution in a plane direction, the opening ratio is more than or equal to 0.5 percent and is less than or equal to 60 percent, and thepores are circular or in any shape; and the structures adopting the porous glass plate comprise building and structure windows adopting the porous glass plate, vehicle windows adopting the porous glass plate, enclosures adopting the porous glass plate, sound barriers adopting the porous glass plate, totally enclosed structures of traffic passages adopting the porous glass plate, and paravents adopting the porous glass plate. The porous glass plate has the advantages of having air permeability and being favorable for the ventilation, having the sound-absorbing effect of a perforated plate and amicroperforated plate and certain sound insulation effect, having the effects of keeping out the wind and reducing the wind pressure, and having the rainproof and antitheft effects. The porous glassplate is applicable to windows or glass curtain walls of buildings and structures, vehicle windows, enclosures, sound barriers, enclosed structures of traffic passages and paravents.

A motor cooling system comprises a condensation cooler, a gas cooling loop and an evaporation cooling loop, wherein the gas cooling loop and the evaporation cooling loop are located in a sealed casing cavity, and the two loops are intersected in the condensation cooler; the condensation cooler is shared by the gas cooling loop and the evaporation cooling loop and is located outside the motor casing and is communicated with the casing cavity via a gas inlet and a gas outlet. The motor cooling system is applied to cooling of a large-power generator and a motor.

The invention relates to the field of ventilation equipment, in particular to an injection molding centrifugal fan blade for an air conditioner. The injection molding centrifugal fan blade comprises a base plate, a hub, a plurality of blade bodies and an outer ring. The outer side of the hub and the inner side of the base plate are connected into a whole. The bottom ends of the blade bodies and the base plate are connected into a whole. The outer ring and the outer side walls of the tops of the blades are connected into a whole. The hub is provided with a plurality of material saving openings. The base plate is provided with 4-10 material saving holes. Not all the blade bodies have the same central angle. The air inlet end of each blade body is provided with a plurality of tooth-shaped notches. A plurality of bumps are arranged on the backpressure face of each blade body. The inner side end of the top of each blade is provided with an arc chamfer. The injection molding centrifugal fan blade for the air conditioner has the advantages that the structure is novel, and the base plate cannot deform during injection molding; the initial unbalance of the fan blade is adjusted, so that the product weight and cost are not increased, and noise is low.

Energy-saving grain drying equipment comprises a drying tower, a feeding device, a hot air furnace, an air cooler, horn-like air tanks, a grain discharge device and a base of the tower. The equipment is characterized in that at least three layers of horn-like air tanks are uniformly distributed in each section of the drying tower; the air outlet ends of the horn-like air tank on the lowermost layer are arranged at one side of the drying tower and are connected with a residual heat collection chamber; the residual heat collection chamber is connected with a water-air separator; the horn-like air tank on the lowermost layer is perpendicular to the horn-like air tanks at the upper side thereof; the air inlet ends of the horn-like air tanks on the two adjacent layers at the upper side are respectively arranged at two sides of the drying tower and are connected with a hot air chamber; a hot air inlet of the hot air chamber is connected with the hot air furnace; a cold air inlet is connected with the air cooler; a flue gas dedusting and purifying device connected with a mixing chamber is arranged on the lower part of a heat exchanger; a residual heat recovery chamber is arranged in a furnace body and is communicated with a residual heat heating chamber which is communicated with a heat exchange chamber; and a blast inlet of the air outside the furnace and a separated air outlet are arranged at the bottom of a flue gas furnace grate. The equipment has the advantages of high efficiency of drying grains, fine quality, small volume, environmental protection, energy saving, etc.

A vortex type dust cup of a dust collector with the function of thrice separating includes a crust body, an air inlet that is arranged at the crust body and is tangent with the crust body and a separator, which is arranged inside the crust body. Certain fall height is arranged between the level position of the top of the air inlet of the separator and the central position of the dust cup air inlet. The separator is provided with two pieces of an internal pipe and an external pipe, which are coaxially installed. The bottoms of the internal pipe and the external pipe are in close connection. The height of the internal pipe is lower than the height of the external pipe. The air inlet of the separator is an annular body and is formed by the screw-thread-shaped rotary arrangement of screw panels, and the bottom of the separator is fixed at a separating cover. The middle of the internal pipe above a central hole of the separator is connected with a central pipe, which is coaxial with the internal pipe. The central pipe is put through the separating cover and extends downwards to form an extending pipe, which is provided with a small top and a big bottom. A short pipe is arranged inside the lower part of the extending pipe and links the extending pipe, the short pipe and the bottom of the crust body as a dust cup air outlet, which is provided with a trumpet-shaped convex edge. The extending pipe under the separator is provided with a three-vane rotating plate inside. The separation effect towards the air with dust can be further strengthened by thrice separating through the dust cup internal cavity.

The invention relates to a tying and placing method for a vertical sand barrier, which adopts a nonuniform structure, namely, the porosity or ventilation coefficients at the upper part and the lower part are different; the sand barrier is layered in the vertical direction; and the lower structure is compact, the middle structure is sparse, and the upper structure is ventilative. The high vertical structure tied and placed through adopting the method adapts to the vertical distribution of concentration of wind-drift sand, thereby not only effectively withholding the sand delivery of wind-drift sand, but also reducing the wind pressure on the sand barrier, reducing the breakage damage of wind power, meanwhile reducing the material consumption and sand-prevention cost; and the method provided by the invention can be applied in the mechanical sand-prevention engineering at all areas with sand storms.

The invention relates to a cooler of broadcast emitter and electric high-power element. Wherein, the outdoor machine is outside the room, and the indoor machine is inside the frame of television and broadcast emitter; the upper wind open of vaporizer of indoor machine is connected to the bottom support of power amplifier of emitter; the coolant outlet of vaporizer is connected to the gas reflux tube of outdoor machine and connected to the liquid outlet tube of outdoor machine; the ventilating valve is at the top of power amplifier; the condense water of vaporizer and the water outlet tube are in the outdoor condition A. the invention can use circulated wind to cool inside the frame or use natural wind.

The invention discloses an elevator control method and device, equipment and a storage medium. The method comprises the steps that an elevator door corresponding to a resisted elevator is controlled to be kept in an opened state according to door closing resisting signals corresponding to the resisted elevator; a partial pressure elevator corresponding to the resisted elevator is scheduled to a partial pressure floor; after the partial pressure elevator reaches the partial pressure floor, an elevator door o the partial pressure floor is opened, an elevator door of the partial pressure floor iscontrolled to be kept in an opened state, and therefore the door closing resistance of the resisted elevator is smaller than a preset door closing resistance threshold value. When the door closing resistance of the resisted elevator is smaller than the preset door closing resistance threshold value, the elevator door corresponding to the resisted elevator is closed according to the door closing signals of the resisted elevator.