400results about How to "Achieve ventilation" patented technology

The invention discloses a sound insulation cabin of a turbine engine. The sound insulation cabin is arranged on the turbine engine in a sleeving mode, and comprises a cabin body, an intake noise reduction unit and a ventilation noise reduction unit; the intake noise reduction unit and the ventilation noise reduction unit are arranged on the cabin body, and the periphery of the cabin body is filledwith sound insulation materials; and the intake noise reduction unit is used for intake noise reduction of the turbine engine, and the ventilation noise reduction unit is used for noise reduction ofa ventilation system of the turbine engine. The sound insulation cabin has the beneficial effects that the intake noise reduction unit is additionally arranged at an air inlet of the turbine engine, and intake noise reduction of the turbine engine is achieved; the ventilation noise reduction unit is additionally arranged in the transmission direction of the turbine engine, and the ventilation andcooling noise reduction for the turbine engine is achieved; the periphery of the cabin body is filled with the sound insulation materials, and the overall noise reduction for the periphery of the turbine engine is achieved.

The invention discloses a sinking technology for expanding a pilot well drilled by a raise-boring machine, by using a vertical well heading machine, which comprises the following steps of (a) drilling the pilot well by using the raise-boring machine; (b) drilling by using the vertical well heading machine to enable the pilot well to be enlarged into a vertical well at a desirable diameter in a brushing way; (c) hanging a net on and jetting concrete onto the wall of the vertical well to form a temporary supporting well wall; (d) after enlarging in the brushing way and heading to a lower tunnel by using the vertical well heading machine, gradually removing components of the vertical well heading machine from top to bottom. By the adoption of the technology provided by the invention, in the presence of the pilot well, a vertical well hole at a design diameter is formed through the one-time drilling of the vertical well heading machine; therefore the technology is applicable for the construction of underground mine vertical well holes for coal mining, metal, nonmetal and the like.

The invention relates to the industrial cultivation method of Hypsizigus marmoreus and the mushroom house adopted. Mainly before the outgrowth of young mushroom, the temperature in the mushroom house is firstly controlled in 14 DEG C +- 1 DEG C. After the young mushrooms send forth, the temperature in the mushroom house is controlled from 15 DEG C to 18 DEG C. The air exchanger is adopted for the ventilation 2 to 4 times of the mushroom house everyday and each time is for 5 to 15 minutes. The cooling fan is also switched on for the synchronous operation with the air exchanger. An ultrasonic humidifier is adopted for the humidification to the air inside the mushroom house, so that the relative humidity can be controlled between 85 to 95%. When the ultrasonic humidifier is switched on, so is the cooling fan. Through a grid arranged above each layer of mushroom bed, the space on the mushroom bed is partitioned to a plurality of placing spaces, so that each cultivation bag can be placed inside a placing space. With the program, the production cycle is reduced and the quality of Hypsizigus marmoreus is also improved. Thus the growth of Hypsizigus marmoreus in accordance of the requirement of the characteristics can be ensured. The air humidity inside the mushroom bed is uniform with low energy consumption. Therefore, the automatic production can be achieved.

The invention relates to a building member, in particular to a complex heat-preservation roof and a construction method thereof. The roof comprises a roof truss, EPS boards and waterproof boards, the multiple EPS boards are arranged between purlins of the roof truss, and the waterproof boards are arranged on the EPS boards and the purlins; and the two end surfaces of the roof truss are also provided with the waterproof boards. The construction method is as follows: the EPS boards are arranged on the roof truss, the upper surface of each EPS board and the upper surfaces of the purlins are coplanar; reflecting films are stuck on the upper surfaces of the purlins and the EPS boards; the waterproof boards are assembled on the two sides of the lowest end of the roof truss, and then are paved on the previous layer until the surface of the roof truss is completely paved; a baffle is arranged on the roof truss and is provided with a first bracket, the first bracket is provided with an external pinchplate, and a drain tank is arranged on the first bracket by the external pinchplate; a second bracket is arranged below the first bracket, and a perforated plate is arranged on the second bracket; and the waterproof boards are used to seal the two end surfaces o the roof truss. The invention has the advantages of environment protection, heat preservation, thermal insulation, sound insulation, convenient installation and the like.

The invention provides a construction outdoor sun-shading metal roller blind with turnover blind slats. The construction outdoor sun-shading metal roller blind comprises a tubular motor (10), a front housing (2), a back housing (1), a group of hoisting belts, a group of the blind slats, blind slat lateral covers (19), a turnover control mechanism and a guide rail (9), wherein the group of the hoisting belts are responsible for transmitting power of a transmission tube (22) to the blind slats; the bind slates have sun-shading effect and can be rolled on the transmission tube (22); the blind slat lateral covers (19) are arranged at the both ends of upper blind slats (4), transition blind slats (5) and turnover blind slats (6), and are in the same symmetrical structure; the upper blind slats (4), the transition blind slats (5) and the turnover blind slats (6) can be connected by a hoisting chain board (8) and a turnover chain board (7) through the blind slat lateral covers (19), so that the upper blind slats (4), the transition blind slats (5) and the turnover blind slats (6) form a straight line capable of stretching, and can be wound on the transmission tube (22) in a curled manner; and meanwhile, the turnover blind slats (6) is turned over to be horizontal, so that light enters indoors through gaps among the turnover blind slats. The construction outdoor sun-shading metal roller blind provided by the invention keeps the advantages of good sun-shading effect, strong wind-resistance capability, and obvious sound insulation effect. The blind slates can be turned over while the construction outdoor sun-shading metal roller blind is unfolded for sun-shading, so that the functions of lightning, ventilating, keeping a visual field and the like are realized.

The invention provides an air exhausting control method and device and a down-down exhausting cabinet, and relates to the technical field of air conditioners. The air exhausting control method is applicable to the up-down air exhausting cabinet. The up-down air exhausting cabinet comprises a housing, and a functional device which is arranged in the housing, wherein an upper air outlet is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing. The air outlet control method comprises the following steps: receiving a shielding signal which is used for reflecting whether a barrier is within the preset distance from the lower air outlet; controlling the lower air outlet to open or close based on the shielding signal; and controlling the functional device to start or stop. The air exhausting control method meets the target demand and ensures the comfort.

The invention provides an intelligence material storage device which solves the problems that in the prior art, a file box is not turned over for a long time, and mildew or insect pests can be generated at the bottom. The device comprises a cabinet, the interior of the cabinet is divided into a plurality of storage grids through a plurality of vertical plates and a plurality of transverse plates;the plurality of transverse plates are bottom plates of the plurality of storage grids respectively; each of the multiple transverse plates is a structure with an inner cavity and an opening in the upper end. A ventilation device is mounted in a transverse plate at the bottom of each storage grid; The ventilation device comprises a first bottom plate and a second bottom plate; the first bottom plate and the second bottom plate are installed in the transverse plates in an up-down sliding mode and are composed of a plurality of bottom rods, a first rack and a second rack are fixed to the bottomof the first bottom plate and the bottom of the second bottom plate, and driving half gears located between the first rack and the second rack are rotatably installed on vertical plates on the two sides of each storage grid respectively. Through the first bottom plate and the second bottom plate, ventilation of the bottom of the file box is achieved, and the phenomenon that the bottom of the filebox is mildewed or damaged by pests during long-term storage is avoided.

The objective of the present invention is to provide an elevator capable of maintaining airtightness and controlling an atmospheric pressure inside a car by using pressurizing and depressurizing means (2, 3). In the car (1) is provided with ventilating means (10) for natural or forcible ventilation. An example of the ventilating means (10) is comprised of ventilating windows (11) formed in a ceiling of the car, ventilating window plates (12c) for closing the ventilating windows, lock means (13) normally locking the ventilating window plates so as to close airtight the ventilating windows and, when receiving a normal power failure signal, releasing the lock, and window open / close means (12) for opening the ventilating window plates, which when the lock is released, by the weights of weights (12f) suspended from the other end parts of wire ropes (12e) fixed to the ventilating window plates, whereby the safety of passengers can be assured by allowing the inside of the car to be ventilated when a power fails due to a trouble with the elevator.

The invention discloses a tunnel intelligent ventilating control method. Corresponding deviation and a deviation change rate are calculated through the pollutant concentration, the wind speed and the traffic volume parameters fed back by a field detector, then the values of a proportionality coefficient Kp, an integral action coefficient Ki and a derivative action coefficient Kd are regulated according to a preset fuzzy control rule, the control frequency of a frequency converter is obtained through PID operation, a jet fan is controlled to convert frequency and operate, the ventilation environment in velocity modulation is rapidly changed, the pollutant concentration and the wind speed parameters are circularly fed back, the current control frequency is continuously calculated and output, and demand ventilation is achieved.

The invention discloses a range hood automatic operation and intelligent air purifying system and method. The range hood automatic operation and intelligent air purifying system mainly comprises a range hood. An air quality sensor, a human body induction sensor and a temperature sensor are arranged on the range hood. Whether a human body gets close to the range hood or not is detected through the human body induction sensor, the temperature change of air below the range hood or the cookware temperature change is detected through the temperature sensor, and according to the temperature measuring result or by combining the temperature measuring value and the air quality measuring value, the range hood automatically controls the air exhaust amount. The range hood automatic operation and intelligent air purifying system and method have the beneficial effects that a range hood starting signal is obtained through get-close of the human body; and the overall temperature situation of a kitchen is detected through the temperature sensor, and the temperature sensor and the air quality sensor are matched, so that the air exhaust amount of the range hood is automatically regulated and controlled, and range hood automatic operation, intelligent air purifying and air changing are achieved.

The invention relates to an intelligent garbage can which comprises can bodies, can covers and a support column, wherein each can body is fixed at the lower part on each of the two sides of the support column; each can cover is arranged at the upper part on each of two sides of the support column; a lifting drive device for driving the can covers to move up and down linearly is arranged on the support column; a wind speed sensor, a humidity sensor and a PLC (programmable logic controller) are fixed on the support column; the can bodies comprise inner can bodies and outer can bodies; channel spaces are formed between the inner can bodies and the outer can bodies; entry and exit doors corresponding to the inner can bodies are arranged on the left side faces of the outer can bodies; a plurality of layers of blow holes are formed in the middles of the front side faces and the rear side faces of the outer can bodies; side walls of the inner can bodies comprise breathing side wall parts located at the upper part and uniformly provided with a plurality of breathing holes, and water storage side wall parts located at the lower parts; the channel spaces are provided with covering plates; rubber sealing plates are fixed on the side faces, corresponding to the blow holes, of the covering plates; and transverse drive devices for driving the covering plates to make transverse linear reciprocating motion are further fixed in the channel spaces. The garbage can is multifunctional and convenient to use, and is automatically operated.

The invention relates to the technical field of air conditioners, in particular to a fresh air assembly capable of achieving annular air exhaust and an air conditioner. The fresh air assembly capable of achieving annular exhaust comprises an air flue. The air flue comprises an air inlet and an air outlet which are oppositely formed. A motor is arranged in the air flue and connected with a centrifugal blade. An annular air supply channel is formed between the inner wall of the air flue and the outer edge of the centrifugal blade. The air inlet and / or the air outlet are / is provided with a heat exchanger. According to the fresh air assembly capable of achieving annular air exhaust, during air exchange, annularly-exhausted airflow is in a scattered mode and can be rapidly scattered to any corner in a room, the air exchange speed is high, meanwhile, the airflow speed produced by the centrifugal blade is low, and air supply is in a scattered mode, so that the human body does not feel the strong face-blowing feeling, and the using comfort level of a user is high.

The invention relates to a control device for controlling at least the parking brake of a towing vehicle of a towing vehicle / trailer combination, said parking brake comprising at least one spring brake cylinder, and for controlling the service brake of a trailer of the towing vehicle / trailer combination, containing at least the following: a) a compressed air supply connection (1) which can be connected to a compressed air storage container, b) an air quantity boosting valve device (9), the inlet (9.2) of which can be connected to the compressed air supply connection (1), the outlet (9.3) of which can be connected to a working connection (28) with the at least one spring brake cylinder, and which has a pneumatic control inlet (9.1) for supplying a control pressure in order to control the pressure at the outlet (9.3) of the air quantity boosting valve device (9), c) an electrically actuatable bistable valve (5) with an inlet (5.1) which can be connected to the compressed air supply connection (1) and to an outlet (5.2) that can be connected to the control inlet (9.1) of the air quantity boosting valve device (9), the outlet (5.2) of the bistable valve being connectable either to the bistable valve inlet (5.1) or to a pressure sink (5.3), d) an electronic control unit (10) which is electrically connected to the bistable valve (5) and which controls the bistable valve (5), and e) at least two ventilatable or evacuatable connections (29.1, 29.2) for a trailer control valve device which controls the service brakes of the trailer, one connection (29.1) of the connections (29.1, 29.2) being ventilated and the other connection (29.2) of the connections (29.1, 29.2) being evacuated when the vehicle is parked and one connection (29.1) and the other connection (29.2) being ventilated when the vehicle is traveling, wherein f) the inlet (5.1) of the bistable valve (5) is connected to a connection (29.1). According to the invention, g) the outlet (5.2) of the bistable valve (5) is directly and constantly connected to the control inlet (9.1) of the air quantity boosting valve device (9), and h) a valve device (7; 7') is provided which can be at least partly electrically controlled by the control unit (10) and which is designed to connect the other connection (29.2) to the inlet (5.1) or to the outlet (5.2) of the bistable valve (5) or to a pressure sink (7.12').

The invention discloses a full-automatic moisturizing ventilation slotted hole soilless cultivation system which comprises a cultivation body and a cultivation medium matched with the cultivation body. A plurality of grooves are formed in the vertical wall of the cultivation body, and a plurality of ventilation holes are formed in the grooves and penetrate the circumferential wall of the cultivation body with the grooves. The full-automatic moisturizing ventilation slotted hole soilless cultivation system is newly designed according to all links needed by plant growth such as medium planting, irrigation, water drainage and management, so that the cultivation system is environmentally friendly, economical, humanized and suitable for industrialized mass production.

The invention relates to a solar device for car radiating and refrigerating and a car. The solar device comprises a solar panel, a storage battery, a circuit monitoring module, a refrigerating device,a ventilation and radiating device and a ventilation pipeline and is characterized in that the refrigerating device is communicated with the ventilation and radiating device through the ventilation pipeline, and the solar panel, the refrigerating device and the ventilation and radiating device are connected with the storage battery through the circuit monitoring module; the refrigerating device comprises a semiconductor refrigerating plate, a cold conduction block, a cold-end fan and a radiating device; the ventilation and radiating device comprises a first fan, a first fan radiating inlet, afirst fan radiating outlet, a radiating port, a free ventilation port and an outlet. The solar device has the advantages that the solar device can store sufficient power by the solar panel and the storage battery; in addition, by the coordination of the refrigerating device and the ventilation and radiating device, cooling and ventilation of the internal space of the car can be achieved, and a good cooling effect is achieved; meanwhile, the consumption of other resources is avoided, and the device is clean, pollution-free and simple.

The invention relates to a pair of breathable shoes. Each breathable shoe comprises a shoe sole body, an air bag component and a groove. Each air bag component comprises an inlet pipe and at least one outlet pipe; an inlet check valve and an outlet check valve are respectively arranged in the inlet pipe and each outlet pipe; each shoe sole body is connected with a waist plate; an inlet passage communicated with the outside is arranged in each waist plate; each inlet passage is communicated with the corresponding inlet pipe; each shoe sole body comprises a half sole part, an arch part and a heelpiece part; each half sole part is provided with a release slot and an air bag; the outlet pipes on each air bag are communicated with the corresponding release slot; each inlet check valve and each outlet check valve are located at the corresponding heelpiece part. Air inlets of each breathable shoe are located on the corresponding waist plate far away from the ground, and therefore, the phenomenon that water or dust enters the inlet passages to cause the air bag components to be blocked can be effectively prevented, and the reliability is high. Each inlet check valve and each outlet check valve are arranged on the corresponding heelpiece part, so that the safety and the comfort are better; each air bag is arranged at the corresponding half sole part, and is capable of sucking and releasing more air to play a role of rapidly cleaning air in the shoes, so that the ventilation Efficiency of the interiors of the shoes is improved.

The invention discloses a solar-powered ventilation roller shutter sun-shading device and method. A roller shutter box of the device is installed on a wall body and is of a cavity structure, and a solar thin-film battery is arranged on the outer surface of the side facing the outside, of the upper surface of the roller shutter box. A solar radiation sensor and a temperature sensor are arranged outside the solar thin-film battery, an air inlet shutters are installed at the bottom of the roller shutter box, air outlet shutters are arranged on the side faces of the roller shutter box and face the indoor side. A tubular motor is installed inside the roller shutter box, the upper end of a flexible roller shutter is connected with the tubular motor, and the lower end of the flexible roller shutter is fixed to a bottom rod. The input end of a calculator is connected with a charging battery, the solar radiation sensor and the temperature sensor respectively, the output end of the calculator is connected with a controller, the tubular motor and an axial fan respectively. The solar-powered ventilation roller shutter sun-shading device and method fully utilizes solar energy and can simultaneously achieve sun-shading and ventilation of a building external window, facilitate improvement of indoor air quality and heat comfort, shorten air-conditioning time and save air-conditioning electric quantity.

The invention relates to a laboratorial culture tank and discloses a drying constant-temperature test box. The drying constant-temperature test box comprises an insulating layer, a constant-temperature air circulating device and a front door, wherein the insulating layer and the front door form a closed constant-temperature inner cavity; the constant-temperature air circulating device comprises a motor, a wind wheel and a circulating air duct; the motor drives the wind wheel to rotate, the circulating air duct comprises an air exhausting duct and an air inlet duct, one end of the air exhausting duct is connected with an air outlet of the wind wheel, the other end of the air exhausting duct is communicated with the constant-temperature inner cavity, the air exhausting duct comprises an air duct cover plate arranged above the wind wheel, one or more exhausting holes are formed in the air duct cover plate, an air velocity sensor is arranged between the air duct cover plate and a draught fan, a heating device is arranged on the inner side, close to the air inlet duct, of a first exhausting hole, and a temperature sensor is arranged between the first exhausting hole and the heating device. The drying constant-temperature test box has the advantages that stable hot air circulation can be realized in the constant-temperature inner cavity, and the test box can be uniformly heated, is good in temperature control effect and high in precision and has a high application value.

The invention discloses a main body brick used for constructing a hollow wall. The main body brick comprises a brick body which comprises a first long edge, a second long edge, a left rib and a right rib, limiting bosses are arranged on the upper ends of the left rib and the right rib, limiting grooves matched with the limiting bosses are formed at the lower ends of the left rib and the right rib, protruding strips are arranged at the upper ends of the first long edge and the second long edge, lower grooves matched with the protruding strips are formed at the lower ends of the first long edge and the second long edge, and the brick body is provided with through holes penetrating from top to bottom. When the main body brick is used for constructing the wall, upper-layer building blocks are piled on lower-layer building blocks, and the limiting grooves of the upper-layer building blocks are clamped on the limiting bosses of the lower-layer building blocks, so that the wall can be constructed more quickly and more accurately, and the constructed wall can be straight and smooth without string pulling or other methods. The wall constructed by the main body brick can realize ventilation, temperature preservation and heat insulation.

The invention discloses a glass curtain wall which comprises single-layer glass arranged on the outer side and double-layer hollow glass arranged on the inner side. A first permeable plate is arranged at a gap between the single-layer glass and the double-layer hollow glass. A second permeable plate is arranged between the double-layer hollow glass and a wall. The single-layer glass located below the first permeable plate is composed of a plurality of first glass louvers. The double-layer hollow glass located below the first permeable plate is composed of a plurality of second glass louvers. The first glass louvers and the second glass louvers are connected with a motor through transmission mechanisms. The motor is controlled by a controller. The glass curtain wall can achieve heat preservation in winter, heat protection and heat insulation in summer and indoor ventilation.

The invention belongs to the field of tea processing equipment, and discloses a green tea drying device comprising a rack and a drying oven fixed to the rack. The drying oven is provided with an air outlet, and internally provided with a heating mechanism, and the interior of the drying oven is slidably connected to sliding plates which are rotatably connected to a plurality of rotating shafts; cages are fixed to the rotating shafts, and each rotating shaft is fixedly provided with a link gear; the link gears on every two adjacent rotating shafts are engaged with each other, and the interior of the drying oven is rotatably connected to a main shaft which is fixedly provided with first cams; the first cams abut against the sliding plates, and the main shaft is fixedly provided with a driving gear, and the outer wall of the drying oven is fixedly provided with a hot air pipe; and a plurality of drying pipes are all connected to the hot air pipe, and provided with drying holes uniformly.Compared with the prior art, the green tea drying device has the advantages that drying is performed through rotation of the main shaft and lead-in of hot air alternately according to the scheme, andthe tea drying efficiency is improved; and the tea is dried more uniformly in the ceaseless turnover process, and the tea can be prevented from being broken due to violent movement.

The invention discloses an explosion-proof ventilation device for underground engineering. The explosion-proof ventilation device for the underground engineering comprises a ventilation pipe and a fanmounted inside the ventilation pipe, the inner wall of the ventilation pipe is fixedly provided with an adjustment device for adjusting the rotation speed of the fan, a treatment box is fixed on theinner wall of the ventilation pipe, the side wall of the treatment box is provided with a ventilation groove in a penetrating mode, an L-shaped connecting rod is fixed on the inner wall of the ventilation groove, a rotating shaft is rotationally connected to the side wall of the connecting rod, and a plurality of rotating plates are fixed to the circumferential side wall of the rotating shaft. Theexplosion-proof ventilation device has the advantages that when the concentration of mashgas of an underground passage is relatively high, and air input by an air outlet pipe is not enough to reducethe concentration of the mashgas, a detector can emit an acousto-optic alarm, the emitted sound can be used for prompting a worker for prevention, the emitted flash can reduce the value of resistanceof a photoresistor, so that the attraction force of an electromagnet to an electricity connecting piece is increased, then the rotation speed of the fan is reduced, the air suction amount per unit time is reduced, then the concentration of the mashgas in the ventilation pipe is reduced, and explosion is avoided.

The invention relates to a cuttage method for salix variegate. The cultivation manner including the step of cuttage can be utilized to perform cuttage on mass salix variegate; the success rate can reach 99%; according to the cuttage method for salix variegate, the problem that wild salix variegate plant is rare and cannot meet the planting requirement in Yangtse Gorges falling area is solved and the water and soil loss problem on both sides of Yangtse Gorges can be more effectively solved.

The invention is window type ventilating system. Its ventilating apparatus is arranged on the side of window, in order to ventilating the needed space; ventilating system are composed of switch jalousie and pipe jalousie for changing air flowing direction, one-piece air conditioner which feed air and realize heat exchange inside of it and then discharge after heat exchange. The ventilating system is arranged at the side of one-piece air conditioner to ventilating needed space. Pipe jalousie is set at the side of ventilating system to switch channels leading to one-piece air conditioner heat exchange selectively. The ventilating system includes: fans which feed air in by rotating, motor which provide power to fans, filter which purify the air partially, switch jalousie which change air flowing direction.

The invention discloses a nuclear power plant of a movable marine nuclear power platform. The nuclear power plant is arranged in a caisson in the movable marine nuclear power platform and comprises a nuclear island, a turbine workshop, a purification and cooling device, a waste collection device and a monitoring device. The nuclear island is arranged in the middle of the caisson. The turbine workshop, the purification and cooling device, the waste collection device and the monitoring device are adjacent to the nuclear island. Pressure drainage water carrier boxes are arranged on the peripheral wall of the caisson. The nuclear power plant of the movable marine nuclear power platform has the advantages that the whole arrangement of the nuclear power plant in the caisson is compact, connected pipelines are reduced, device cooperation is enhanced, the size of the caisson is reduced, and therefore the building cost is reduced; isolation protecting measures are additionally set for the devices, device operating safety is improved, and the safety of operation and maintenance staff is ensured; a climbing handle perpendicular channel and an elevator perpendicular channel are arranged at the diagonal positions of the caisson respectively, so that ventilation of the caisson is achieved, and a double-insurance emergency channel for the caisson is built.