2128 results about "Louver" patented technology

The invention relates to a large windward area shutter capable of stabilizing large environmental wind induced vibration, and belongs to the technical field of ventilation air conditioning, the large windward area shutter comprises a large shutter group, a driving assembly and a stabilizing assembly, the large shutter group is composed of N layers of large shutters arranged up and down, and N is an integer greater than or equal to 1; the large shutter comprises a window frame and M large shutters with rotating shafts, and M is an integer greater than or equal to 2; the width W of the large shutter is not less than 0.5 m and not more than 2.0 m, and the height H is not less than 1.0 m and not more than 3.0 m; the rotating shafts are installed in the middle of the upper end and the middle of the lower end of the large shutter and hinged to the window frame. The driving assembly is connected with M large shutter hinges of the large shutter; the stabilizing assembly is a transverse stabilizing piece set or a vertical stabilizing piece set or a combination of the transverse stabilizing piece set and the vertical stabilizing piece set. The transverse stabilizing piece group consists of one or more transverse stabilizing pieces and is connected with a large shutter of the large shutter; when N is greater than or equal to 2, the vertical stabilizing piece group is connected with two vertically-adjacent large shutters of the upper-layer large shutter and the lower-layer large shutter; effective constraining force is formed through the stabilizing assemblies, vibration displacement of the large shutters is reduced, and the stability of the large shutters is improved.

The invention belongs to the technical field of sunshade shutter control, and provides a dynamic photovoltaic sunshade shutter control method. Comprising the steps of photovoltaic shutter sunshade device construction, dynamic mathematical model construction, optimization target definition, original controller design, controller iterative optimization, control rule definition, weight strategy acquisition, shutter adjustment strategy generation and photovoltaic shutter sunshade device adjustment. According to the invention, through fusion of the model prediction control method and the rule-based control method, adaptive adjustment of the photovoltaic shutter sunshade device according to the optimization target and the custom rule is realized, and the flexibility and the universality of the device are improved.

The disclosure provides a turning and folding outdoor awning, which includes a support, a guide assembly, louvers, and a driving device. The support includes a rectangular frame and support legs. The guide assembly includes guide rods symmetrically arranged at two sides of the rectangular frame and slide seats in slide fit on the guide rods, and a connecting rod assembly is arranged between two adjacent slide seats. A plurality of louvers are provided and are arranged between the slide seats on the two guide rods. The driving device is connected with the slide seats and configured to drive the slide seats to slide and the louvers to rotate. The turning and folding outdoor awning provided by the disclosure is compact in structure, is capable of being turned and folded rapidly, is convenient and labor-saving to operate, and has a good using effect.

A radiator shutter for a motor vehicle for controlled engine ventilation, having a frame in which at least two louvres are mounted rotatably to pivot from a closed position to an open position. A motor which drives a single louvre is provided in or on the frame on an engine side of the frame. On the same side is a coupling element which synchronously transmits the rotation of the louvre to the other louvres. A locking disc is provided for each louvre on the mounting side of the frame facing away from the engine side of the frame, in the region of the mounting provided there for the louvres. The locking discs have a form which, if at least one of the locking discs does not rotate synchronously with all the other locking discs, blocks the rotational movement of the locking discs in a force-fitting and form-fitting manner.

A portable foldable blind has a has a bottom frame, first and second side panels, a front side and a back side. The blind also includes fascia elements over the front and back sides. The blind has inner roof frames which support the fascia elements and outer roof frames. The outer roof frames have handle portions. During deployment or folding, the outer roof frames can be braced against the sides of the blind to provide an alternative usage and to improve the ability for users to deploy the fascia elements.

The invention provides a backpressure adjusting method and device for a natural ventilation direct air cooling system, and the method comprises the steps: obtaining the current backpressure of a steam turbine, and executing an up-cut step sequence when the current backpressure is greater than a set backpressure first preset difference value, and the up-cut step sequence comprises the steps: setting a first target sector as a new commissioning sector, and setting a second target sector as a second commissioning sector; the control mode of the shutter opening degree of the new commissioning sector is set to be automatic adjustment within the first preset opening degree range; when the current back pressure is smaller than a second preset difference value of the set back pressure, a down-cut step sequence is executed, and the down-cut step sequence comprises the step that the control mode of the shutter of the second target sector is automatically adjusted in the first preset opening degree range from the second preset opening degree range to the second preset opening degree range till the second target sector quits operation. By controlling the automatic switching of the sectors and the automatic adjustment of the opening degree of the shutter, the automatic adjustment of the back pressure is realized, the automation degree of the back pressure adjustment is improved, the precision and efficiency of the back pressure adjustment are further improved, and the efficiency of the generator set is improved.

The invention belongs to the technical field of overall aerodynamic design of helicopters, and particularly relates to an infrared suppressor fairing of a helicopter and an air heat optimization design method of the infrared suppressor fairing. The fairing comprises a fairing body, a shutter air inlet, a square protective net air inlet, a second-stage exhaust pipe and a first-stage mixed exhaust pipe. The front of the fairing body is regarded as a half ellipse which is laterally cut along a long axis; a shutter air inlet is formed in the front portion of the fairing body, and the plane of a shutter is crescent A square protective net air inlet is formed in front of the top of the fairing body; an oval second-stage exhaust pipe is arranged behind the top of the fairing body so that high-temperature exhaust can be further cooled by means of downwash airflow of the rotor wings. A first-stage mixed exhaust pipe is sleeved in the second-stage exhaust pipe; and the primary mixing exhaust pipe is connected with an outlet of the transmitter. According to the method, the problem that the pneumatic performance and the thermal performance are difficult to consider in a traditional design method is solved, comprehensive optimization of the pneumatic performance and the thermal performance of the fairing is achieved, and a pneumatic design scheme of the infrared suppressor fairing is formed.

The intercooling tower shutter control system and method have the characteristics of self-adaption and high precision in the control strategy, the system can automatically adjust the control parameters in the actual operation, and the dependence on manual intervention is reduced. The complexity of operation and maintenance is reduced, and errors and faults caused by manual operation are reduced. And the problem of hysteresis or over-regulation possibly caused by a single controller is effectively avoided. By means of double-layer control, more stable control response can be provided when complex and changeable operation conditions are processed, and system instability caused by environment or load fluctuation is reduced. Through the double-layer fuzzy controller, more accurate temperature adjustment can be realized. The first-layer fuzzy controller is responsible for processing macroscopic temperature and wind speed changes, and the second-layer fuzzy controller is used for further finely adjusting the opening error and the change rate.

An air inlet sealing shutter capable of minimizing ventilation resistance during opening belongs to the technical field of ventilation and air conditioning, and comprises a window frame and a vertical wide shutter group capable of minimizing ventilation resistance during opening, the vertical wide shutter group consists of M vertical wide shutters with rotating shafts, and M is greater than or equal to 2; the width W of the vertical wide shutter meets 0.5 m < = W < = 2.6 m, the ratio F of the thickness to the width of the vertical wide shutter meets 1 / 50 < = F < = 1 / 10, the vertical wide shutter with the ratio F of the thickness to the width is used for reducing ventilation resistance caused by the shielding area corresponding to the thickness of the vertical wide shutter when the shutter is opened, and meanwhile the wind resistance strength of the vertical wide shutter is maintained; the vertical wide shutter comprises an air inlet lap joint area, a solid shutter area and an air outlet lap joint area. When environmental wind exists and the shutter is opened, flow guide and vortex elimination are carried out through the vertical wide shutter blades with the width W and the air inlet lap joint area of the vertical wide shutter blades, so that the ventilation resistance of the shutter during inclined air inlet is minimized; when the louver is closed, air inlet sealing of the louver is achieved through alternate lap joint of the air inlet lap joint areas and the air outlet lap joint areas of the adjacent louvers.

The invention relates to the technical field of drying, and discloses a solar heat collection tube heating and drying device and a tube row manufacturing method thereof.The solar heat collection tube heating and drying device comprises a first rack, and a first heat collection module is arranged on an inclined mounting platform formed by a first-stage step and a second-stage step of the first rack; a drying cavity defined by first steel plates is installed on the outer wall of the three-stage step of the first rack, and a first partition plate is arranged in the drying cavity. A second partition is arranged on the top surface of the first partition, a third partition is arranged on the side wall of the second partition, and an air delivery pipe is arranged between the third partition and the first partition; an air inlet shutter is mounted on the first steel plate, a fan opposite to the air inlet shutter is mounted on the second partition plate, and an exhaust shutter is mounted on the first steel plate; a supporting beam located above the third partition plate is arranged on the first rack, a footstand is arranged on the supporting beam, and a drying bin used for drying corn is placed on the footstand; according to the device, the solar energy utilization rate is increased through the heat collection structure, heat collection and drying chambers are reasonably partitioned, the airflow circulation path is clear, and stable drying of corn is achieved.

The utility model discloses a finished steel plate and equipment belt assembly type system installation structure which comprises a keel system, an integrated equipment belt and a hanging piece system. The keel system comprises hanging bars, hanging pieces connected with the hanging bars and main keels installed on the hanging pieces. The integrated equipment belt comprises a metal cover, an air opening shutter installed in the metal cover and a light-transmitting piece. The hanging piece system comprises a fixing piece, a special keel and a closing-up strip, the fixing piece is hung on the main keel, the upper end of the special keel is connected with the fixing piece, the lower end of the special keel is connected with the closing-up strip, a hanging groove is formed in the upper end of the closing-up strip, a hanging piece is installed on the outer side face of the metal cover, and the hanging piece is hung on the hanging groove. The mounting structure has the advantages of being simple to mount, attractive in decoration, detachable to assemble and good in appearance quality.

The invention relates to the technical field of boiler flue gas dust removal and denitration, in particular to a boiler flue gas dust removal and denitration system which comprises a vertical inertial dust removal mechanism for guiding discharged flue gas and intercepting dust. The high-temperature dust remover is used for carrying out fine dust removal on the flue gas discharged by the vertical inertial dust removal mechanism; and the denitration device is used for carrying out denitration treatment on the flue gas subjected to dust removal and purification. Through self-adaptive mechanical linkage of the spindle air plug and the shutter mechanism, synchronous optimization of smoke flow velocity compensation and collision angle under the full-load working condition is realized, and the low-load dust removal efficiency is ensured not to be reduced; and in cooperation with spiral self-rotating cleaning and active cooling protection, the operation stability and the service life of the device in a high-temperature and high-dust environment are improved.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

A system and method for controlling motorized vents of an HVAC system of a vehicle including at least one motor to move air louvers of an HVAC vent of the HVAC system, at least one thermal sensor to sense hot / cold areas inside the vehicle, and a position and motion control to control movement of the at least one motor, wherein position and motion control determines a targeted positioning of airflow based on hot / cold areas sensed by the thermal sensor.

The energy-saving curtain wall structure with the ventilation function comprises a curtain wall body, the inner side of the middle of the curtain wall body is hollow and sealed, ventilation grooves are formed in the upper side and the lower side of the curtain wall body, and shutters are arranged in the ventilation grooves; the louver comprises a plurality of rotating shafts rotationally arranged on the inner sides of the ventilation grooves and louver blades arranged on the outer sides of the rotating shafts; grooves are formed in the side edges of the upper side and the lower side of the curtain wall body correspondingly, the ends of the rotating shafts in the corresponding ventilation grooves penetrate into the grooves, and gears are fixedly arranged at the ends of the rotating shafts. According to the curtain wall, through pure mechanical linkage of the memory alloy spring, the rack, the gear and the rotating shaft, the blind window can be automatically opened and closed along with the room temperature, a motor, a sensor or manual intervention is not needed, manual operation is thoroughly eliminated, the response speed only depends on physical phase change of the memory alloy, and the automation level is remarkably improved. The hollow sealed curtain wall main body and the upper and lower ventilation slots form a chimney effect channel which is linked with the shutters to amplify the natural ventilation efficiency.

An image-forming apparatus includes a housing, a louver provided on the housing, a fan for discharging air inside the housing in a discharging direction to an outside of the housing, a duct accommodating the fan, a filter, and a first elastic member. The fan is positioned upstream of the louver in the discharging direction. The filter is positioned between the fan and the louver in the discharging direction. The first elastic member is positioned between the duct and the filter and between the fan and the filter in the discharging direction. The first elastic member is in contact with the filter and at least one of a downstream end of the duct and a downstream end of the fan in the discharging direction.

The invention discloses an intelligent segmented shutter adjusting method and system based on non-contact measurement of facial physiological indexes, and the method comprises the steps: 1) collecting facial video data of a user, and extracting facial data features; 2) based on the facial data features, instant thermal comfort and visual comfort feelings of the user are determined, and a corresponding adjustment instruction is generated; (3) based on the instant thermal comfort and visual comfort feelings of the user, the priority of segmented shutter adjustment is judged, and the segmented shutter adjustment angle is determined; and (4) according to the adjusting instruction and the segmented shutter adjusting angle, the segmented shutters and the indoor photo-thermal equipment are adjusted, and therefore adjustment of the indoor photo-thermal environment is achieved. The system comprises an information acquisition module, a data processing module and an execution module. Facial physiological indexes are measured and recognized through the non-contact camera, real-time, accurate and non-contact prediction of individual comfort is achieved, then the priority and angle of segmented shutter adjustment are judged, and a comfortable and efficient indoor photo-thermal environment is guaranteed.

The invention belongs to the technical field of electrical equipment of a power grid, and particularly relates to a low-temperature-rise three-dimensional heat dissipation Washan box-type transformer substation low-voltage chamber for an intelligent power grid, which comprises a transformer substation main body and a top cover fixed at the top of the transformer substation main body, and is characterized in that a draught hood is fixedly mounted on the top cover in a penetrating manner; an air inlet shutter is fixedly installed on the side wall of the transformation chamber main body in a penetrating mode, a dust cleaning assembly is fixedly installed on the side, away from the transformation chamber main body, of the air inlet shutter, the dust cleaning assembly comprises a frame, and an annular filter screen is rotatably installed on the frame. Cold air entering the transformer chamber body can be filtered through the annular filter screen, and then in the rotating process of the annular filter screen, part of hot air exhausted by the draught hood can conduct back flushing, dredging, cleaning and heating on the annular filter screen from inside to outside; drying of winged insects on the annular filter screen can be accelerated through heating, and then the dried winged insects on the annular filter screen can be easily scraped off through the scraping and sweeping suction mechanism.

An environmental control system for a building, the system including a vent. The vent includes one or more louvers configured to change position between an open position and a closed position to permit air from the air duct to enter a zone of the building or stop the air from entering the zone and a vent circuit configured to operate the one or more louvers based on one or more control commands. The system includes a controller device including a processing circuit configured to receive a selection of an operating profile from a plurality of predefined operating profiles for the vent, each of the plurality of predefined operating profiles indicating an intended use of the zone, determine, based on the operating profile, the one or more control commands, and cause the vent circuit to operate the one or more louvers based on the one or more control commands.

An off-ridge roof ventilation device for placing on an opening of a roof deck. The ventilation device comprises an elongated main hood with a curved shape. The right end of the main hood is closed by a right-side panel, and the left end of the main hood is closed by a left-side panel. The main hood comprises a perforated top face and a venting opening on a bottom face. A throat panel is placed on the bottom face of the main hood in a manner to reduce the venting opening. A perforated interior panel is placed between the top face of the main hood and the throat panel to eliminate wind driven rain and / or snow even in high wind situations. The perforations are preferably designed as mini-louvers, wherein the mini-louvers of the main hood and the mini-louvers of the throat panel comprise the same shape and count the same number.

The invention refers to an active aero shutter for a motor vehicle, comprising a frame with openings through which air can flow, at least one closing plate in each opening, which closes the opening and stops the air flow when closed, and the frame is formed by several struts, each connected to at least one other strut, wherein each closing plate is pivoted with a hinge on a basic strut. As the active aero shutter according to the invention has counterrotating closing plates which are rotating in several angles it is possible to explore new design concepts and ensure driving performance.

According to the anti-seepage ventilation intelligent regulation and control device and the regulation and control method thereof, a temperature detection system (an outdoor temperature sensor, a door bucket temperature sensor and an indoor temperature sensor) and an air taking / supplying mechanism (a variable speed fan, an outdoor / indoor electric air valve and a shutter air opening) are arranged in a building door bucket, t1, t2 and t3 are compared in real time through a central processing unit, and the seepage air direction is judged; and then a fan is started to take air from the indoor space or the outdoor space, an air curtain is formed in the door bucket, natural permeation air is cut off, the air volume is dynamically and finely adjusted by continuously comparing delta T (the temperature difference between the door bucket temperature and the non-air-supply-side temperature difference) with a set threshold value A (0.1-0.5 DEG C), zero permeation is achieved, and excessive energy consumption is avoided. The device is symmetrically arranged, the structure is compact, and the energy-saving performance and comfort of the door bucket can be remarkably improved. The invention further provides a corresponding computer readable storage medium to support software implementation of the method.

An off-ridge roof ventilation device for placing on an opening of a roof deck. The ventilation device comprises an elongated main hood with a curved shape. The right end of the main hood is closed by a right-side panel, and the left end of the main hood is closed by a left-side panel. The main hood comprises a perforated top face and a venting opening on a bottom face. A throat panel is placed on the bottom face of the main hood in a manner to reduce the venting opening. A perforated interior panel is placed between the top face of the main hood and the throat panel to eliminate wind driven rain and / or snow even in high wind situations. The perforations are preferably designed as mini-louvers, wherein the mini-louvers of the main hood and the mini-louvers of the throat panel comprise the same shape and count the same number.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The invention relates to the technical field of heat preservation and insulation curtain wall structures, in particular to a building heat preservation and insulation curtain wall structure which comprises a curtain frame and two sets of hanging beams, a winding system is installed in the curtain frame, a curtain belt is wound on the winding system, and an open hole matched with the curtain belt is formed in the end face of the curtain frame. A sunshade area, a light-transmitting area, a protection area, a ventilation area and an air inflation bag area are sequentially arranged on the curtain belt, a shutter frame is installed on the inner wall of the curtain frame in a sliding mode, a set of limiting springs limited through the curtain frame are installed on the shutter frame, and a set of photovoltaic shutter units linked with one another through a belt are rotatably installed on the inner wall of the shutter frame. The curtain belt has the beneficial effects that the sunshade area, the light-transmitting area, the protection area, the ventilation area and the inflatable bag area are arranged on the curtain belt, so that multiple functions of shading, lighting, protection, ventilation, heat insulation and the like are realized.

An annular light emitting unit emits light from the inside of a louver toward an outer circumference, with respect to the entire circumference direction. A surface emitting unit emits light in a vertical direction directed opposite to a casing. Light intensity of the surface emitting unit is greater than light intensity of the annular light emitting unit.

This invention belongs to the field of metering box technology, specifically a fireproof energy metering box. It includes a metering box body, a moisture-proof mechanism located on the upper right side wall of the metering box body, and a pressure relief mechanism located on top of the moisture-proof mechanism. The pressure relief mechanism includes a shell, with a limiting plate fixedly connected inside the shell. A ball groove with a tube groove is formed at the center of the limiting plate. A blocking ball is placed on top of the limiting plate, and the blocking ball is adapted to the ball groove. A connecting rod is fixedly connected to the top of the blocking ball, and a fixing spring is connected to the top of the connecting rod. During heat dissipation, the airflow pushes the blocking ball upwards, allowing heat to escape through the louvers. In case of fire, the blocking plate closes, and the fixing spring pushes the blocking ball downwards to block the ball groove. When the internal pressure is too high, the airflow pushes the blocking ball upwards, achieving pressure relief inside the metering box and solving the problem of increased pressure and explosion risk during a fire.

A louver-blind double glazed window unit comprises a frame structure with spaced apart inner and outer windows mounted thereto defining an inner chamber therein. A plurality of louver structures extend within the chamber and are pivotally mounted to the frame. Each louver structure comprises a respective photovoltaic stream. An electrical circuit comprises positive and negative contact members respectively positioned at respective longitudinal ends of the louver member and being in contact with the photovoltaic cell stream. The electrical circuit comprises positive and negative wires within a channel defined by the louver member and being in electrical communication with the positive and negative contact members respectively via openings in the louver member. The louver member comprising a pivot member for being pivotally mounted to a longitudinal part of the frame structure and for receiving therein the positive and negative wires to protrude therefrom for electrical communication with an electrical circuit load.

The peak closed type condensation cooler comprises a box body, and an air mixing chamber is arranged on the upper portion of an inner cavity of the box body; two connected fog dispersal modules are arranged in the box body, a resistance reducing shutter and a water distribution device are sequentially arranged between the fog dispersal modules and the side wall of the box body, and the two fog dispersal modules, the resistance reducing shutter and the water distribution device divide a lower cavity of the box body into a first cavity, a second cavity and a third cavity; the fog dispersal module is provided with a cold air channel and a hot air channel which communicate with the air mixing chamber. Through the structural design of bottom air inlet, the sufficient fresh air introduction area can be achieved on the premise that the height of equipment is not increased, then the air path resistance is reduced, the fan operation pressure head and energy consumption are reduced, and the overall energy-saving performance of the equipment is improved. Meanwhile, on the premise that the vertical size of the equipment is not increased, the lift requirement of the spraying water pump is reduced, the energy consumption and the operation burden of the water pump are reduced, and the operation economical efficiency and the structure compactness of the whole equipment are improved.

The utility model discloses a shutter canopy, which relates to the related technical field of shutter sheds, and comprises edge beams, the lower ends of the edge beams are connected with supporting legs, a plurality of shutters are connected in the edge beams, connecting pieces are rotatably arranged between the two ends of any shutter and the edge beams, connecting rods are connected among the plurality of connecting pieces on one side, and the connecting rods are connected with the edge beams. The connecting piece comprises auxiliary sealing pieces, the two ends of the shutter are connected with the auxiliary sealing pieces respectively, a transmission rod is connected between the two auxiliary sealing pieces, and the transmission rod is connected with the shutter; rotation of the shutters is controlled through linkage of the sealing pieces on the two sides of the shutters, the shutters of the whole shutter shed can rotate conveniently, the transmission rods between the auxiliary sealing pieces on the two sides can control the transmission structures on the two sides of the shutters to rotate synchronously, the two ends of the shutters can rotate at the same time, the distortion influence on the shutters in the rotating process is reduced, and the service life of the shutters is prolonged. And the service life of the shutter is prolonged.