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 a mud retaining wall and air down-the-hole hammer drilling tool and a drilling technology. The drilling tool is in a coaxial three-channel structure; an inner layer drilling rod is provided with a center channel; the inner layer drilling rod and a middle layer drilling rod form a second channel; the middle layer drilling rod and an outer layer drilling rod form a third channel; the three-channel drilling tool in the drilling process and a hole wall form a fourth channel for independent circulation of mud and compressed air; an outer pipe of the drilling tool adopts threaded connection; two layers of inner pipes are spliced; the connection strength is high; the sealing property is good; screwing and dismounting are facilitated. The compressed air drives a down-the-hole hammer to impact detritus, so that the hard rock drilling efficiency can be improved by more than ten times; the compressed air is closed and cycled in down-the-hole equipment and free from the influence of variations of well depth and confining pressure; the wind pressure and air supply are reduced greatly; the well mouth contamination is prevented; the energy-saving, environment-friendly and low-cost drilling is achieved; the mud drilling is used while the air drilling is used; the effective protection on the well wall is achieved; the adaptability to various complex formations is improved; and the drilling safety is ensured.

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.

The invention relates to an air supply system of a refrigerator, the refrigerator and an air supply method. The air supply method is characterized in that small separated circulations are formed by respective and independent air supplying in each area separated by laminating frames, elevation-type air supply is adopted in an upper area of a refrigerator body, diving-type air supply is adopted in a middle area of the refrigerator body, thus reverse circulation of the middle area of the refrigerator body is caused, and airflow disturbance is formed by joining downward airflow with reserve airflow. According to the air supply system of the refrigerator, the refrigerator and the air supply method, disclosed by the invention, independent air supply in each area of the refrigerator is realized, thus no dead corner is generated in the refrigerator, the temperature uniformity is good, the refrigerating efficiency is high, food cannot be directly blown by cold air, and the fresh preservation capacity of the food is obviously increased; in addition, the elevation-type air supply is matched with the diving-type air supply, thus the reserve circulation can be formed in local areas, the active airflow disturbance can be caused, the non-uniformity of refrigerating capacity is overcome, the loss of the refrigerating capacity is reduced, and the temperature balancing performance and the refrigerating efficiency are further increased.

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.

It relates to a device for cutting air flow, reducing wind speed and stable flow field, particularly a windbreak grid. It solves the shore endurance and low strength of existing wind shielding material, together with secondary pollution of hard degradation, complicated processing and higher cost. The curve grid plate is divided into C shape, S shape and omega shape. The curvature direction can be the same or in reverse alternatively. It cuts the head on whirlwind into air flows in various angles and interfering with each other, making the best of the drive and energy of the wind, reducing the turbulence degree and wind pressure, forming a low wind speed flat flow zone at the lee side of the grid wall, avoiding interference of the air current to certain area of the lee side.

The invention relates to a personalized air supplying end device; a fresh air volume adjusting valve, a return air volume adjusting valve, a manual adjusting knob or an electric actuator, an air volume adjusting valve draw bar, an air volume adjusting valve leaf, a linkage mechanism bearing and a linkage air valve connecting rod form a linkage combination air volume adjusting valve with an up-down or left-right structure; a fan is arranged in a sound eliminator case, a fixed air opening is arranged at the outer side of the sound absorber case, the sound eliminator case is separated from a sound- eliminating static pressure box by a partition plate, an air volume adjusting valve and an air valve control draw rod are arranged on the partition plate, the manual adjusting knob or an electrical control mechanism are arranged on the shell of the device, the air volume adjusting valve, the air valve control draw rod and the manual adjusting knob or the electrical control mechanism are arranged behind the fan, a preformed function segment interface connecting part, a flange or a bolt connecting part, a fan adjusting knob or an electric adjustor and an air outlet are also arranged on the shell. The personalized air supplying end device can be used for a floor air supplying system, and can be arranged at other positions according to the environment requirements.

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 multi-combination wind wheel air purifying device. The multi-combination wind wheel air purifying device comprises a main body (8) and a frame (6) arranged outside the main body (8); two sides of the frame (6) are provided with air exhaust grids (11), and the main body (8) is connected with a wind wheel fixing frame (3); the wind wheel fixing frame (3) is provided with a plurality of wind wheel installation grooves; the wind wheel installation groove or the wind wheel fixing frame (3) is provided with wind wheels (5), and the main body (8) is provided with a plurality of corresponding air inlets; and the frame (6) is provided with a plurality of corresponding air outlets. According to the invention, after the scheme is adopted, the noise and the air pressure which are caused by a single motor can be dispersed by means of the plurality of wind wheels installed on the wind wheel installation grooves, and the motors are dispersed, and the power is dispersed; moreover, by adopting the scheme, because the areas of wind inlets and the wind outlets of the multi-combination wind wheels increase, the energy efficiency increases, the noise decreases, the air pressure is uniform, the filter using rate is improved, and the multi-combination wind wheel air purifying device becomes thin and light.

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.

The invention discloses a mixed flow type spraying propulsion air cooling tower. The inside of the tower is provided with a spraying propulsion atomization plant, a jet current catch pan, a water pipe and a screen stencil drogues from top to bottom; the screen stencil drogues is outside provided with a watering sieve plate and a watering screen stencil; the end of the inflow pipe is provided with a solid-liquid separator for separating the impurities, and the top thereof is provided with a swirl nozzle. The atomization plant is inner provided with a bottom spraying rotary atomizer and the bottom inducing draft rotating paddles, which produces spray and impels the paddles to rotate, and synchronously forms fan blade mechanical air and jet flow inducing draft to cool the heat water. As the flow of the paddles is in the same stream with the spray flow, the wind pressure is reduced; therefore the cooling air flow is greatly increased. The spray flow is collected in the jet current catch pan, and then is distributed as exiguous drops to fall down via the watering sieve plate and the watering screen stencil, while the inlet air comes in from the tower top and heat transfers with the water drops by a screen stencil air passage located at the middle part of the tower via the three ways of following current, cross current and adverse current to take the heat off. No vortex cavities and short flows are in the tower. The invention has the advantages of big air flow, sufficient mass transfer, good temperature drop, simple structure, high reliability, and low noise, which can be used for cooling sewage.

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 discloses a novel stereoscopic air supply air conditioning system which comprises a floor air supply pipe and a ceiling fresh air pipeline. The novel stereoscopic air supply air conditioning system is characterized in that the outer side of the floor air supply pipe is mounted on the ground through an air pipe support; an elevated floor is arranged at the position above the floor airsupply pipe; a floor air outlet pipe is arranged at the top end of the floor air supply pipe; one side of the floor air supply pipe is connected with a fan coiled pipe; one side of the fan coiled pipe is connected with a fan; an air inlet of the fan is connected with a floor air return pipe; and a suspended ceiling is arranged at the position below the ceiling fresh air pipeline. According to thenovel stereoscopic air supply air conditioning system, the floor air return pipe, the floor air supply pipe and the ceiling fresh air pipeline are arranged, and the problems that when the stereoscopic air supply air conditioning system is used, small-density indoor circulating air is hardly sprayed out from the underground space and naturally float up through the stereoscopic air supply air conditioning system, meanwhile, large-density fresh air is hardly supplied from top to bottom, and use comfort of the stereoscopic air supply air conditioning system is influenced are avoided.

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 pressure relief device which comprises a main body, wherein at least one runner with two through ends is arranged in the main body and provided with at least two runner openings, the runner openings are internally and transversely pivoted with a cover plate respectively; and in addition, the pressure relief device is provided with an air control unit respectively in positions in the runner, close to the cover plates, and the air control units are connected to an air control device. Therefore, the air control device can drive the air control units to control the opening and the closing of the cover plates and further control the opening and the closing of the runner.

The invention discloses a jetting air cooler. A spray-propulsion air draft device of a lower spray nozzle and a lower air draft blade, a water-drenching sieve plate and a bottom water tank are arranged from top to bottom in the cooler body of the jetting air cooler. An air inlet at the top of the cooler body is provided with a demister; an air outlet is formed on the lateral wall of the cooler body at the upper part of the water tank; a cold air duct is extended from the air outlet; a water absorption type baffle board demister is arranged in the cold air duct; and the air draft device can also be provided with a water makeup pipe, a water outlet pipe which is connected with a water pump, etc. The low-temperature water-circulation spray is adopted by a spraying device to cool hot air into wet cold air which is further demisted into dry cold air. By adopting the normal-temperature water spray at about 20 DEG C with the difference of only 1-2 DEG C to the leaving air temperature, cold air can be obtained in summer, and warm air can be obtained in winter. According to experiments, when the water spray rate is 40m<3> / h, the pressure is 0.08 MPa, the air volume is above 2*10<4>m<3> / h, the power is only 1.4 KW.h, the water spray temperature is 24 DEG C, the atmospheric wet bulb temperature is 35 DEG C, the atmospheric dry bulb temperature is 25 DEG C, and the cold air temperature is 25 DEG C, and the refrigeration coefficient of the jetting air cooler is as high as 39.8 and is more than 10 times that of the prior air conditioner. Since the air temperature, the water temperature and the wet bulb temperature are all close to each other, the cooling water is required to be supplied in only more than 10 days which are the hottest days in one year. The jetting air cooler is suitable for low-humidity cooling and ventilation, and is an ideal water air conditioning device.

The present invention relates to a damper-integrated blower having improved airtightness, which comprises a blower casing a having a suction port and a blower casing b fastened to the casing a from the opposite side; a vane stopper protrusion is formed on bottom surface of the exhaust port, and a vane contact housing part is formed above the exhaust port; damper motor screw fixing parts integrally protrude from the outer upper surface of the vane contact housing part of the blower casing a; a damper motor shaft hole is bored in a damper motor shaft hole protrusion part which is integrally formed on the outer upper side of the vane contact housing part of the blower casing a; a vane rotation shaft protrudes from the inner surface of a damper motor shaft hole protrusion part of the blower casing b facing the damper motor shaft hole protrusion part; an eccentric damper motor shaft of a damper motor is introduced into the damper motor shaft hole so as to connect with the blower casing a; a vane as a single member is connected to the damper motor shaft and the vane rotation shaft so as to open and close the exhaust port; and a gasket is coupled to the four edges of the vane providing a vane module.

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.