83results about How to "Increase ventilation rate" patented technology

A closed air handling system for heating and / or cooling has an integrated damper mechanism for diverting discharge air into the attic or crawl space of a house, apartment, or other building, and for facilitating the introduction of fresh air into such building. Optionally, the damper has integrated louvers for use during an open position such that a venturi effect increases airflow by creating a vacuum between the louvers and the ducts connected to the discharge plenum.

A closed air handling system for heating and / or cooling has an integrated damper mechanism for diverting discharge air into the attic or crawl space of a house, apartment, or other building, and for facilitating the introduction of fresh air into such building.

The invention discloses a dual-purpose smoking product which is suitable for being smoked after being ignited and smoked in a heat-not-burn mode at the same time. The dual-purpose smoking product comprises a cigarette core section (1), a supporting section (2) and a filtering section (4) which are sequentially connected; the supporting section (2) and the filtering section (4) are wrapped by forming paper to form a filter tip rod; the cigarette core section (1) and the filter tip rod form the smoking product through tipping paper; a cigarette core base material of the cigarette core section (1) comprises reconstituted tobacco and cut tobacco, and the mass ratio of the reconstituted tobacco to the cut tobacco is 1:1 to 7:3; the reconstituted tobacco comprises a first aroma-increasing substance with a boiling point greater than or equal to 200 DEG C and a second aroma-increasing substance with the boiling point being less than 200 DEG C. According to the structure of the smoking product,cooling and smoke filtering can be both achieved, the comfortable and fast smoking feeling is provided, flavors and fragrances with different boiling points are added to meet the smoking taste requirements of different conditions, the cigarette core section (1) can meet the requirements of consumers on nicotine, and the smoking amount can be ensured in the heat-not-burn state.

The invention relates to the technical field of artificial intelligence, and discloses an artificial intelligence computer with a cooling and heat exchange protection box, including a base, a box body and a machine body, a support rod is installed on the upper surface of the base, and the box is installed on a support The top of the rod, the inside of the right side of the base is provided with an inner groove, the bottom of the inner groove is equipped with a drive motor, and the output shaft of the drive motor passes through the top of the inner groove and connects with the bottom of the drive wheel located above the base. Fixedly connected, the middle part of the bottom surface of the box is plugged with a connecting rod. The artificial intelligence computer with cooling and heat exchange protection box is equipped with fans, through holes, ventilation holes and water cooling pipes. The hot air in the body is cooled to achieve double cooling of the outside of the body. At the same time, it cooperates with the heat dissipation device inside the body to make the heat dissipation more thorough and prolong the service life of the body.

A waterproof and breathable plug is provided. A protection net is assembled with one side or two sides of a waterproof and breathable membrane, to prevent insects from contacting and damaging the waterproof and breathable membrane. A collet is further assembled with the waterproof and breathable membrane, to prevent the waterproof and breathable membrane from moving, contracting and being deformed. The collet is also easily to be assembled in a breathable bolt. The waterproof and breathable plug is adjustable to regulate the breathing rate, fitting different electrical boxes or different weather conditions. Therefore, the problems of the prior art that the conventional waterproof and breathable membrane is easily bit by insects, the waterproof and breathable membrane has a constant-sized opening that cannot regulate the air amount, and the waterproof and breathable membrane is likely deformed due to the bad weather and high humidity and temperature are thus overcome.

The invention discloses a sealing valve. According to the technical scheme, the key point is that the sealing valve comprises a box, wherein at least one blade is rotatably arranged in the box; the two sides, close to the box, of the blade are provided with first sealing parts; each first sealing part comprises side sealing strips which can abut against the side walls of the box; the side sealing strips are fixedly arranged on the blade in a blade length direction; when a ventilation opening is in a closed state, the side sealing strips abut against the side walls of the box, so that the sealing between the blade and the side walls of the box can be realized; the sealing strips are arranged to directly abut against the side walls of the box, and a baffle plate is not needed to be arranged in the box, so that the area of the cross section of an air flue is prevented from being affected, and therefore, the ventilation quantity of the box is guaranteed, and the ventilation rate of the box is increased.

The invention relates to a method for make silk from thin cigarettes belonging to the technical field of cigarette silk making. The method comprises the following steps of: unpacking and material preparation, cutting into slices, blending reconstituted cigarette slices, loosening and rejuvenation, performing tablet selection through air separating, performing three-stage screening, performing laser impurity removal, heat preservation cabinet type prefab, a first SIROX warming and humidifying, first feeding, performing heat preservation cabinet type compounding, performing second SIROX heatingand humidifying, second feeding, heat preservation cabinet type storage leaf, knife roller fixed length cutting thread, third SIROX heating and humidifying, drum thread drying, flexible broken thread,secondary fluidized bed thread cleaning, filamentous stem thread blending, cabinet type mixing thread, flavoring, cabinet type compound mixing, cabinet type storage thread, wrapping. The diameter oflarge diameter knife roller is 650mm. Reducing the slice-running rate of the shredder, making the shredded tobacco filamentous, improving the processing resistance and the consistency of the structureand morphology of the shredded tobacco, realizing the expansion of the raw material range of the shredded tobacco, improving the quality level of the finished product of the shredded cigarette, reducing the loss, reducing the cost and improving the satisfaction of the shredded cigarette.

The invention belongs to the technical field of fans, and particularly relates to an axial flow fan made of fiberglass-reinforced plastic. The axial flow fan made of the fiberglass-reinforced plasticcomprises a controller, an air duct and an impeller installed on a motor output shaft; the air duct is composed of a first air duct body and a second air duct body, the first air duct body and the second air duct body are connected through a damping unit, the input end of a motor is connected with a second hollow cylinder through a double-shaft telescopic rod, and the two ends of the double-shafttelescopic rod are fixedly connected with the inner wall of the second hollow cylinder and the motor separately; and a conical cylinder is fixedly connected to the end, far away from the impeller, ofthe output end of the motor. According to the axial flow fan made of the fiberglass-reinforced plastic, the structure is simple, and noise and dust are reduced while the ventilation efficiency of thefan is improved.

An elevator interior rapid ventilation device comprises an elevator car. The internal top of the elevator car is provided with a box. The front end of the box is provided with a front air inlet. A front draught fan is mounted at the front air inlet. An air outlet is formed in the lower portion of the rear end of the box and connected with the upper end of a vertical air pipe. The lower end of the vertical air pipe is connected with an inlet of an exhaust seat. An outlet of the exhaust seat faces the front portion of the elevator car. A plurality of layers of filter screens are arranged in the box. According to the elevator interior rapid ventilation device, when the elevator car stays on a certain floor and an elevator door is opened, fresh air is sucked in through the front draught fan and filtered through the filter screens; the filtered fresh air passes through the vertical air pipe and then is exhausted through the exhaust seat; accordingly, the ventilation initiative is effectively improved, the ventilation efficiency is improved when the elevator car stays, the air quality in an elevator is effectively improved, and the ventilation speed is increased.

The invention discloses a ship outer plate ventilation structure, a ventilation system applying the ventilation structure and a ship. An air duct wall plate used for isolating a first structure air duct from a second structure air duct is arranged between the ship outer plate and the cabin. A shielding net module is embedded in the inner side of an outer plate of the front wall of the first structure air duct; a gas-water separation module is fixed to the shielding net module, a pneumatic shutter module is fixed to an air duct wall plate on the rear wall of the first structure air duct, a pneumatic executing mechanism is hinged and fixed to the pneumatic shutter module, a manual operation mechanism is arranged at the end of the pneumatic executing mechanism, and a deck water leakage opening is formed in a bottom plate of the first structure air duct. The air duct is simple in structure, easy to install and arrange, convenient to overhaul and high in operation efficiency, waves or rainwater is effectively prevented from invading a cabin, the air duct of the structural type is high in drainage capacity and high in effective ventilation rate, radar waves can be effectively scattered through the shielding net structure, and the good stealth effect is achieved.

The invention belongs to the technical field of intelligent housing, and particularly provides a control method used for an intelligent housing system. The intelligent housing system comprises an intelligent window and a fresh air ventilator; and the control method comprises the steps of obtaining the indoor formaldehyde concentration; obtaining weather information; if the indoor formaldehyde concentration is larger than the preset value, and the weather information is suitable for window opening for air changing, opening the intelligent window; and if the indoor formaldehyde concentration islarger than the preset value, and the weather information is not suitable for window opening for air changing, only starting the fresh air ventilator. According to the control method, when the indoorformaldehyde concentration exceeds the standard, the room can be subjected to air changing, the indoor formaldehyde concentration is reduced, according to the weather information, the air changing manner is selected, when the weather information is suitable for window opening for air changing, the intelligent window is preferably opened for air changing, energy is saved, and when the weather information is not suitable for window opening for air changing, the fresh air ventilator is started for air changing, and indoor environment is prevented from being affected.

A method for increasing the fermentation production of hyaluronic acid by adding an oxygen carrier of dodecane belongs to the technology field of applying the oxygen carrier to the optimization of the fermentation process. The invention adopts the method of adding the oxygen carrier of dedecane (1-5%, v / v) in a certain concentration to a fermentation broth after 8 hours' fermentation, so as to increase the dissolved oxygen concentration, thereby increasing the production of the hyaluronic acid. When the concentration of the dedecane is 5%, the production of the hyaluronic acid increases from 5.0g / L to 6.0g / L by contrast (no oxygen carrier is added). The method is simple, effective and applicable to the industrial production of the hyaluronic acid and has certain significance in guiding the optimization of other high-viscosity fermentation processes.

The invention relates to a cinerary casket storage rack, in particular to a convenient-to-ventilate and moisture-proof cinerary casket storage rack. According to the technical aims, the cinerary casket storage rack convenient to ventilate and resistant to moisture can protect a cinerary casket and prevent the cinerary casket from falling off. A cinerary casket storage rack convenient to ventilate and resistant to moisture comprises a supporting plate, a shell, first perforated plates, placing plates and the like, the shell is arranged on the upper side of the supporting plate, the first perforated plates are arranged on the left side and the right side of the shell, and the two placing plates are arranged between the inner walls of the left side and the right side of the shell. The cinerary casket can be protected by rotating a rotating block, a connecting plate slides upwards to enable a fan to move upwards, then the ventilation speed can be increased, the ventilation effect can be kept, the cinerary casket can be placed on a placing plate, and the cinerary casket can be blocked by the rotating block to be prevented from falling off.

The invention relates to iron-smelting furnace hot blast furnace grate system field, especially hole-shape design of a six-piece quincunx-shape hole hot-blast furnace grate. Seven closed arranged round holes on hot-blast furnace grate corresponding to iron-casting grid blocks and lattice bricks are integrated to six-piece quincunx-shape holes. The section of the place connected with furnace grate on cross beam is reduced , The ventilating holes at the place connected with the cross beam are made in to six-piece quincunx-shape holes; 8-shape holes etc. and arranged and combined them to variable form and size six-piece-shape hole furnace grate, The hot-blast Furnace is designed to corresponding structural form.

An embodiment of the invention discloses a new laboratory fume hood. The fume hood comprises a workbench, wherein a shaft is movably arranged at the center of the inner cavity of the workbench, a motor is fixed on one side of the workbench, the shaft is in transmission connection with the motor through an output shaft, both sides of the shaft are provided with adjusting plates, both the two adjusting plates are slidably connected to the shaft, and both the adjacent sides of the two adjusting plates are movably provided with first driving bevel gears. In the invention, a placement cabinet is driven to move up and down through the motor to facilitate the use of people of different heights, an electric push rod drives the two first driving bevel gears to move to the middle of the shaft, the motor can drive two exhaust fans to rotate to generate airflow, and the airflow moves above the workbench through a wind gap, with a fan to speed up the air exchange rate at the top of the workbench. The fume hood has both lifting and double exhaust functions, has a wide range of use and is of a movable structure design, and is convenient to adjust and use and easy to promote.

The invention relates to the technical field of air purifying equipment, in particular to a ventilation air purifying device capable of accelerating air flowing. The device comprises a bracket; an intake main pipe is mounted on the bracket, and is provided with an upper support plate; a purifying main pipe is mounted on the upper support plate; a carbon purifying screen A is mounted in the purifying main pipe; a left intake pipe and a right intake pipe are correspondingly mounted on two sides of the purifying main pipe, and respectively communicate with a left vertical pipe and a right vertical pipe mounted outdoors; a carbon purifying screen B and a carbon purifying screen C are respectively mounted in the left intake pipe and the right intake pipe; external fresh air is adopted as a purifying body; indoor air is extracted out; a rotary intake component is adopted to accelerate the ventilation speed so as to guarantee freshness of the indoor air; and the device has such advantages as convenience in use, high efficiency, low cost and no maintenance.

The invention provides an unpowered controllable ventilator comprising an impeller set, a fixed shaft and a support. The impeller set is composed of arc blades and provided with an upper connecting ring and a lower connecting ring. The upper connecting ring is movably connected with the fixed shaft through a bearing. The outside of the upper connecting ring is provided with a circular cover plate. The lower connecting ring is connected with a first cross connection rack. The center of the first cross connection rack is provided with another bearing which is movably connected with the fixed shaft. The distance between the upper connecting ring and the fixed shaft is smaller than that between the lower connecting ring and the fixed shaft. A second cross connection rack arranged at the bottom of the fixed shaft is movably connected with the top of the support. The bottom of the support is provided with a conical ring with large bottom and small top. The top of the conical ring is provided with a seal chamber; the wall or surface of the seal chamber is in a shutter structure. The unpowered controllable ventilator has the advantages that ventilation speed can be increased, rain in the ventilator and condensate generated by the ventilator can be collected effectively and are treated through a water outlet and a drain outlet, ventilation is controlled effectively and can be adjusted as required, and startup wind force is under the light breeze.

The invention provides ventilative shape-fixed compound tip sticks belonging to the field of cigarette products. The invention particularly relates to the design of the novel filter sticks of cigarettes and a preparation method. According to the design of the novel filter sticks of the cigarettes and the preparation method, the operation of laser perforating is carried out on yew paper corresponding to the position of a pressure loss area of a shape-fixed unit section. According to a preparation method for the filter tip sticks of cigarettes, which is provided by the invention, a ventilation technology of filter tips and the shape-fixed tip sticks of cigarettes are combined together so as to obtain better diluting property, and the diluting property can be lowered to a predicted value. On the basis that the smoking smell of cigarettes is not influenced obviously, the harmful components of tar oil and fume can be effectively and obviously lowered.

The invention belongs to the technical field of grease filling and relates to a pneumatic high-pressure grease filling machine comprising a barrel, a filling pump and a cylinder. The cylinder comprises an inner tube and an outer tube; the inner tube is internally provided with a piston connected with a piston rod; a vent gap is provided between the outer cylindrical face of the inner tube and the inner cylindrical face of the outer tube; an air inlet or air outlet of a reversing valve is communicated with an upper cavity of the piston through the vent gap; the air outlet or air inlet of the reversing valve is communicated with a lower cavity of the piston through an internal passage; a connecting pipe and a grease incoming casing are connected in order below a pump base of the filling pump; the inner wall of the connecting pipe above the grease incoming casing is provided with a grease incoming valve seat; a lifting rod unit is provided with a spool fitting the grease incoming valve seat; the pump base above a booster cavity formed by the pump base, the grease incoming casing, the connecting pipe, the grease incoming valve seat and the spool is provided with a grease outgoing connector. The pneumatic high-pressure grease filling machine has the advantages that the double-tube cylinder structure and the square spool are applied, failure rate of a product is low, grease filling is efficient, and the machine is suitable for grease filling of high-pressure grease filling parts.

The invention relates to the field of constructional engineering, in particular to an efficient silent air duct well structure for a roof. According to the technical scheme, an expansion ventilation cavity is formed in the periphery of a prefabricated heating and ventilation air duct well; perforated ventilation aluminum plates are arranged on the four peripheral walls and the top of the expansion ventilation cavity; an aluminum plate top cover is arranged over the prefabricated heating and ventilation air duct well, and the elevation of the aluminum plate top cover is the same as that of the perforated ventilation aluminum plates; a rain shelter concrete overturned opening is arranged abutting against the part, with the prefabricated heating and ventilation air duct well, of the roof; an outward roof drainage slope within the range of the expansion ventilation cavity; a drainage floor drain is arranged at the indoor bottom of the part, with the prefabricated heating and ventilation air duct well, of a building. According to the efficient silent air duct well structure for the roof, the actual air inlet quantity and air exhaust quantity of the roof air duct well are effectively increased, noise is reduced, and the usage quality of the space of the roof is improved.

The invention relates to a multifunctional kitchen vehicle comprising a kitchen vehicle compartment arranged on a vehicle chassis. The multifunctional kitchen vehicle is characterized in that two main food ovens are arranged at the front portion of the kitchen vehicle compartment; a water tank is arranged on the front wall of the kitchen vehicle compartment and located above the main food ovens; two auxiliary food ovens are arranged at the rear portion of one side of the kitchen vehicle compartment; a smoke exhaust ventilator is arranged on the side wall of the kitchen vehicle compartment and located above each auxiliary food oven; a conditioning table is arranged at the rear portion of the other side, opposite to the auxiliary food ovens, of the kitchen vehicle compartment and comprises a water pool on the left side and a workbench on the right side; a water purification system is arranged below the workbench; a water inlet of the water purification system is communicated with a water source through a pipeline and a submerged pump; a water outlet of the water purification system is communicated with a water inlet of the water tank through a pipeline; a hanging cabinet is fixedly arranged on the side wall of the kitchen vehicle compartment and located above the conditioning table; an electric control cabinet is arranged on the side wall of the kitchen vehicle compartment and located at the front portion of the hanging cabinet; a controller inside the electric control cabinet is electrically connected with various electric devices inside the kitchen vehicle compartment. The multifunctional kitchen vehicle has the advantages of being good in cross-country maneuvering performance, high in kitchen working capacity, high in degree of automation and the like, and can provide food guarantee for field scientific investigation or urgent task execution.

The invention discloses an exhaust device for a negative pressure isolation ward. The exhaust device comprises an exhaust body and a plurality of telescopic corrugated pipes. The exhaust body comprises a box, an air outlet, a plurality of air inlets, an air outlet valve and air inlet valves, wherein the air outlet and the air inlets are formed in the box, the air outlet valve is arranged on the air outlet, the air inlet valves are arranged on the air inlets, and the air outlet is used for being communicated with an exhaust pipeline in the negative pressure isolation ward. One end of each telescopic corrugated pipe is communicated with the corresponding air inlet, and the other end of each telescopic corrugated pipe is used for being communicated with the portion, needing air exhaust, of the negative pressure isolation ward. According to the exhaust device, the exhaust body is communicated with the building exhaust pipeline in the negative pressure isolation ward, the air inlets of the box are connected with the external telescopic corrugated pipe air exhaust pipelines, and the air outlet valve and the air inlet valves are used for controlling opening and closing of the pipelines, so that the purposes of guiding the flow direction of air in the ward and increasing the air change speed by changing the positions of exhaust openings are achieved. The problem that according to an existing exhaust device on the market, the positions of air change ventilation openings cannot be scientifically and reasonably set is solved.

The invention discloses a high-efficiency air-exchanging and temperature-lowering shed comprising walls, a ceiling, and a fan. The walls are enclosed with windows on two sides, long axes of the shed respectively correspond to an air inlet end and an air outlet end, and the fan is arranged at the air outlet end. Two side walls, close to the air inlet end, of the walls are respectively provided with an outdoor curtain wetting device, and the lower portion, close to the air inlet end, of the ceiling is provided with indoor curtain wetting devices. By the arrangement that the indoor curtain wetting devices and an auxiliary fan are additionally arranged in the shed, so that vertical ventilation and comprehensive cooling can be realized. The shed is uncomplicated in structure and simple to assembly, water recycling devices are arranged in a plurality of positions, and therefore, production cost is further reduced. In addition, ventilation efficiency is higher by the aid of the shed, and temperature lowering effect is good as the temperature close to the long axes can be lowered by 3-5 DEG C.

The invention provides a high-efficiency vehicle-mounted ventilation system which comprises a wind inlet unit, a wind outlet unit and a control unit, wherein the wind outlet unit comprises an unpowered blower and a pipeline and is installed at the middle rear part of the vehicle roof, and the pipeline is directly connected into a carriage; and the wind inlet unit is a ventilation pipe with a curved head and is positioned at the front part of the vehicle roof, the direction of the pipe head faces the direction of the vehicle head, and a small ventilator which can be independently controlled isarranged at the position of the pipe head. When the vehicle is started, air flow drives the unpowered blower to rotate and simultaneously carry the hot air in the vehicle away, and the ventilation pipe replenishes fresh air into the carriage, thereby forming natural air circulation in the carriage. If necessary, the ventilator can be opened to accelerate the ventilation rate. The invention has theeffects that after the unpowered blower is arranged, the air flow force generated by running of the vehicle drives the unpowered blower to quickly carry the hot air in the vehicle away, thereby performing the action of quick ventilation; and the ventilator can accelerate the ventilation rate and can centrifugally throw away rain water and the like.

The invention relates to a tipping paper gluing apparatus and a gluing method as well as a coiling machine. The tipping paper gluing apparatus comprises a gluing wheel and a wrap angle adjusting mechanism, wherein the wrap angle adjusting mechanism is used for adjusting a contact wrap angle beta between tipping paper and the gluing wheel from a paper inlet side of the gluing wheel. By adopting thetipping paper gluing apparatus and the gluing method, the contact wrap angle beta between the tipping paper and the gluing wheel can be adjusted only from the paper inlet side of the gluing wheel inthe adjustment process, and the contact wrap angle beta does not need to be adjusted from a paper outlet side, so that the contact wrap angle beta is freely adjusted on the premise of not influencinga gluing position of the tipping paper, thereby increasing a ventilation rate of a filter tip of a cigarette product, and enabling the ventilation rate of the filter tip of the cigarette product to meet the quality standard.

The invention provides a control method of a fresh air handling unit. The control method comprises the following steps: detecting the concentration of an indoor air quality factor; comparing the detected concentration value n of the indoor air quality factor with a second preset value n2; according to the comparison result of n and n2, controlling the opening degree of an air inlet valve of the fresh air handling unit and the opening degree of an exhaust valve of the fresh air handling unit, wherein the concentration of the indoor air quality factors is the concentration of PM2.5, or the concentration of CO2, or the concentration of TVOC, or the concentration of the indoor air quality factor is the overall concentration of at least two selected from the group consisting of the concentration of PM2.5, the concentration of CO2 and the concentration of TVOC. Through such a technical scheme provided by the invention, the technical problem of high energy consumption of a fresh air handlingunit in the prior art can be solved.

The invention discloses a damp-proof electric cabinet. The damp-proof electric cabinet comprises a cabinet body; an electric control box is installed on one side of the cabinet body, and a power interface is installed on the electric control box; a box door is installed on the cabinet body, and first ventilation slots are arranged on the surface of the box door; a door handle is fixed on the box door; heat dissipation slots are arranged on the surface of the inner shell of the cabinet body, and a drying light is arranged at the middle position of the heat dissipation slots; an electric controlswitch is arranged inside the cabinet body, and the electric control switch is positioned directly below the drying light; a circuit socket is arranged inside the cabinet, and a circuit breaker is arranged on one side of the circuit socket; a bearing plate is arranged in the cabinet body, and a temperature sensor is arranged on the bearing plate; and a ventilating electric fan is arranged at themiddle position of the cabinet body, and the ventilating electric fan is positioned below the bearing plate. By installing drying equipment inside the electric cabinet, and arranging ventilation slotsaround the cabinet body for circulating ventilation, the invention can effectively protect the internal components of the electric cabinet from dampness.

The invention discloses a dynamic airflow adjusting air valve with a gear structure. The dynamic airflow adjusting air valve comprises a peripheral frame, first gear sets, second gear sets, a shaft sleeve, motor shafts and blades, the shaft sleeve is placed in the peripheral frame, the first gear sets and the second gear sets are meshed in a staggered manner, are positioned in the shaft sleeve and are sleeved with the motor shafts, and the air blades are arranged in the first gear sets and the second gear sets. The dynamic airflow adjusting air valve is simply processed and assembled and can stably run, and energy consumption of an air conditioner of a data center is reduced.

The invention discloses an ultrathin low-frequency ventilation acoustic sound absorption unit and a sound absorber. The ultrathin low-frequency ventilation acoustic sound absorption unit comprises an annular shell, wherein an annular cavity is formed in the shell, through holes are formed in the inner wall of the shell, the cavity is communicated with the outside through the through holes, and a plurality of sound absorption units are sequentially arranged and connected in the sound wave propagation direction to form the sound absorber. The ultrathin low-frequency ventilation acoustic sound absorption unit can realize high-efficiency absorption of low-frequency noise, guarantees ventilation performance, does not influence the external environment of the pipeline, is compact in structure, does not occupy extra space, and can flexibly adjust structural parameters according to specific absorption situations.