2542 results about "Ventilation duct" patented technology

The invention relates to the technical field of underground operation safety and ventilation, and discloses an intelligent ventilation safety system suitable for underground operation, which comprises a data acquisition and transmission module used for acquiring underground environment data in real time and transmitting the underground environment data to a control center; the intelligent control module is used for dynamically adjusting the wind speed according to the real-time data so as to ensure that the gas concentration is within a safe range; the optimization decision module is used for calculating and generating an optimal wind speed regulation scheme through an optimization algorithm; the execution feedback module is used for adjusting the wind speed of an underground fan and a ventilation pipeline according to the instruction of the optimization decision module; and the safety early warning module is used for monitoring the change of the gas concentration in the underground environment in real time and sending out an alarm signal when detecting that the gas concentration exceeds the standard. Through intelligent wind speed adjustment and ventilation pipeline control, in combination with real-time data collection and optimization decision, accurate adjustment of the underground environment is achieved, safety and energy efficiency are improved, and the problems of energy waste and inaccurate gas concentration control are avoided.

The invention relates to an automobile seat ventilation parameter determination method and device and a computer. The method comprises the steps that three-dimensional contour information, object physiological information and in-car environment information of a target object on a car seat are acquired; according to the physiological information of the object and the in-vehicle environment information, comfort analysis is carried out, and comfortable physiological information is determined; taking the comfortable physiological information as a target condition, and constructing ventilation duct information of the automobile seat according to the three-dimensional contour information; inputting the comfort physiological information and the ventilation air duct information into a fan control model to obtain initial fan working parameters corresponding to each fan; performing ventilation simulation according to the initial fan working parameters to obtain fan working information corresponding to each fan; for any fan, performing energy-saving optimization on the initial fan working parameters according to the fan working information to obtain target fan working parameters; and fusing the working parameters of each target fan to obtain the seat ventilation parameters of the automobile seat. By adopting the method, the seat ventilation effect can be improved.

The invention provides a wind scooper for a server, which comprises a scooper body and a plurality of diversion members, the plurality of diversion members are arranged on the same side surface of the scooper body at intervals and divide the scooper body into a plurality of ventilation ducts, and each ventilation duct is provided with an air duct inlet and an air duct outlet; wherein the ventilation air duct at least flows through a first to-be-cooled area of the server case so as to carry out heat dissipation treatment on a to-be-cooled module located at the first to-be-cooled area; the air duct inlet is used for being communicated with at least two adjacent fans on the server case, and at least part of the air duct outlet is used for being communicated with a second to-be-cooled area of the server case located behind the first to-be-cooled area so as to carry out heat dissipation treatment on a to-be-cooled module located at the second to-be-cooled area. The problem that in the prior art, a wind scooper of a server is single in structure, effective heat dissipation of heating elements at different positions cannot be met, and consequently the server cannot operate normally is solved.

The invention relates to the technical field of tea processing equipment, and discloses a continuous air energy drying device and method for coffee pericarp teal.The continuous air energy drying device comprises a box body, an air energy heat pump is arranged on one side of the upper surface of the box body, a connecting pipe is fixedly arranged on one side of the air energy heat pump, and the connecting pipe penetrates through the box body and is fixedly provided with a baffle; a ventilation pipe is fixedly arranged at one end of the connecting pipe, a plurality of air nozzles are arranged at the bottom end of the outer wall of the ventilation pipe, the top end of the outer wall of the ventilation pipe is fixedly arranged at the bottom end of the inner wall of the box body, baffles are symmetrically arranged in the box body, ventilation grooves are formed in the baffles, and a plurality of rollers are rotationally connected to the side walls of the baffles. The air energy heat pump generates hot air, a uniform and efficient hot air circulating system is constructed by means of cooperation of the connecting pipe, the ventilation pipe, the air nozzles and the air outlet holes of the roller and the conveying belt, materials can be uniformly dried in all directions in the conveying process of the conveying belt, the drying efficiency is guaranteed, and the production efficiency is improved.

The utility model discloses a filter based on very high frequency adjustment, comprising an inner housing and a function module, both sides of the inner housing are provided with installation chutes, the function module is inserted and installed in the installation chutes, the outer side of the inner housing is fixedly provided with a plurality of heat radiation fins in an array, and the outer side of the inner housing is sleeved with an air duct pipe. The function module is fixedly provided with a plurality of heat dissipation blocks, one end of the air duct pipe is fixedly provided with a heat dissipation fan, the side face of the inner shell is provided with an interface window, the interface window penetrates through the heat dissipation fins and the air duct pipe, the interface window is fixedly connected with a sealing cover through bolts, and the end, away from the heat dissipation fan, of the inner shell is fixedly connected with an adjusting end cover. According to the utility model, the radiating fins and the air duct pipes are arranged to form a plurality of ventilation ducts on the outer side of the inner shell, the cooling fan is used for cooling the outer side of the inner shell through flowing air, and airflow does not enter the inner side of the inner shell, so that the influence of dust accumulation on the operation of the functional module is reduced while the cooling is performed.

The invention belongs to the technical field of waste gas treatment of cold headers, and discloses a waste gas treatment device for a cold header, which comprises a cold header body and is characterized in that a waste gas purification assembly is arranged on one side of the cold header body, and the top end of the waste gas purification assembly is fixedly connected with a ventilation pipeline. Through cooperation of a baffle, a rotating shaft, a second connecting rod, a threaded rod and other structures, the length of the gas collecting hood is conveniently adjusted, then the waste gas collecting efficiency under different working conditions is improved, a cross-shaped groove is formed in the threaded rod, and therefore when the threaded rod rotates, the rotating shaft and the first connecting rod outside the rotating shaft can be driven to rotate through the cross-shaped groove; after the rotating shaft rotates, the two baffles can be driven by the first connecting rod to move oppositely, so that the overall length of the gas collecting hood is expanded after the baffles move, the waste gas collecting area and capacity are increased, and the waste gas collecting efficiency under different working conditions is improved.

The invention discloses ventilation pipeline welding supporting equipment, relates to the technical field of ventilation pipeline welding, and aims at solving the technical problem that a traditional supporting device is insufficient in functionality. A center driving assembly, at least two outer edge supporting assemblies and an end supporting assembly are sequentially arranged on the main body rail frame from the input end to the output end. Welding assemblies are arranged on the outer sides of the two outer edge supporting assemblies; the welding end of the welding assembly is arranged in the gap between the two outer edge supporting assemblies in a penetrating mode. The driving type pushing mechanism has an intermittent pushing state and a continuous pushing state, and the driving type pushing mechanism is matched with the center driving disc frame to conduct continuous rotating work or intermittent rotating work, so that the ventilation pipeline welding supporting equipment conducts welding work on a circular pipeline of a spiral curling preparation technology; the welding work of the circular pipeline of the circular pipeline unit segmented welding preparation process is conducted; through cooperation of the dual-mode driving mechanism and the reconfigurable supporting system, the limitation of the single function of traditional equipment is broken through.

The invention relates to the technical field of laboratory temperature and humidity control. The laboratory temperature and humidity control system comprises a control terminal, a monitoring module, a dynamic prediction analysis module and a partition adjustment module, the monitoring module comprises a temperature sensor arranged on the surface of a wall and equipment, a humidity sensor arranged in a ventilation pipeline, dew point detection units of a fresh air inlet and a return air inlet, a pressure sensor below the ground and a top infrared thermal imaging unit. The dynamic prediction analysis module is used for receiving the equipment calorific value and personnel density information monitored by the monitoring module and outputting a temperature and humidity change trend; the partition adjusting module comprises a temperature control plate array, an air conditioning unit and a humidity adjusting unit, a temperature control plate switches a heat storage / release state through current pulse, and the humidity adjusting unit is used for dehumidification or humidification; the control terminal regulates and controls the partition module according to the prediction result, and intelligent regulation of laboratory temperature and humidity is achieved.

A combined ventilation mast suitable for an ammonia fuel powered ship is composed of a main ventilation mast and two sets of auxiliary ventilation masts, the two sets of auxiliary ventilation masts are the first auxiliary ventilation mast set and the second auxiliary ventilation mast set respectively, the first auxiliary ventilation mast set is composed of a plurality of first auxiliary ventilation masts, and the second auxiliary ventilation mast set is composed of a plurality of second auxiliary ventilation masts. The first auxiliary ventilation mast group is composed of a plurality of first auxiliary ventilation masts, the second auxiliary ventilation mast group is composed of a plurality of second auxiliary ventilation masts, the number of the first auxiliary ventilation masts is the same as that of the second auxiliary ventilation masts, the first auxiliary ventilation masts and the second auxiliary ventilation masts are alternately arranged in the circumferential direction of the main ventilation mast, the heights of the first auxiliary ventilation masts are sequentially reduced, and the heights of the second auxiliary ventilation masts are sequentially reduced. And in the first auxiliary ventilation mast group, the first auxiliary ventilation mast with the lowest height is higher than the second auxiliary ventilation mast with the highest height in the second auxiliary ventilation mast group. The staggered lowering mode helps all the auxiliary air outlets to be staggered to the maximum degree in height and angle, so that secondary diffusion of toxic areas caused by pressure difference among all the ventilation pipelines when ammonia gas leaks is avoided.

The utility model belongs to the technical field of gas leakage detection, and particularly relates to a carbon dioxide on-site detection device and a carbon dioxide pipeline leakage detection system.The carbon dioxide on-site detection device comprises a ventilation duct, an alarm assembly and a controller, a carbon dioxide detection piece is arranged at the other end of the ventilating duct; the controller is electrically connected with the carbon dioxide detection piece and the alarm assembly. A carbon dioxide field detection device is arranged near a carbon dioxide conveying pipeline, the concentration of carbon dioxide around the carbon dioxide pipeline is detected in real time through a carbon dioxide detection piece, an alarm assembly comprises multiple alarm modes used for sending different alarm signals, and each alarm mode corresponds to different concentration threshold values of the carbon dioxide concentration. The controller is used for switching the corresponding alarm mode according to the concentration threshold value of the carbon dioxide concentration, so that the numerical value of the carbon dioxide concentration is visually reflected, and an operator can take corresponding treatment measures.

The invention discloses an unpowered air purification device based on electrostatic adsorption and negative ion effects, and relates to the technical field of air purification, the unpowered air purification device comprises a ventilation pipeline, an electrostatic adsorption module, a particle capture net, a negative ion release module and the like, a wind scooper guides airflow to enter the electrostatic adsorption module, and a friction ball rubs with an electrode plate to enable the electrode plate to be electrified; particulate matters in the air are adsorbed, falling particulate matters are collected by a liquid collecting box, residual particulate matters are further intercepted by a particulate capturing net, the elastic design is convenient for shaking off and cleaning, and the negative ion release module accelerates the generation of negative ions and purifies the air by utilizing the solar thermal conversion and piezoelectric effect. Efficient air purification is achieved through a multi-stage purification structure, the functions of humidity adjustment, intelligent reminding and the like are achieved, the structure is simple, energy conservation and environment protection are achieved, the device can adapt to various scenes, and an innovative scheme is provided for solving the air pollution problem.

The utility model relates to the technical field of ventilation pipelines, and discloses a smoke prevention and exhaust air pipe used in a vertical piping shaft, which comprises a smoke prevention and exhaust air pipe body and mounting boxes fixed on the front side and the rear side of the inner wall of the smoke prevention and exhaust air pipe body, and further comprises driving motors fixed at the bottoms of the inner walls of the mounting boxes, a threaded rod is rotationally connected to the upper portion of the inner wall of the mounting box, the bottom end of the threaded rod is fixedly connected with an output shaft of the driving motor, and a lifting block is slidably connected to the upper portion of the inner wall of the mounting box. The air pipe has a cleaning function, the inner wall of the pipeline can be automatically brushed at regular intervals through the built-in automatic cleaning system, the cleaning efficiency is greatly improved, the system shutdown time caused by manual cleaning is shortened through automatic cleaning, continuous and effective operation of a smoke prevention and exhaust system is guaranteed, and the service life of the air pipe is prolonged. Oil dirt and impurities on the inner wall of the pipeline are regularly cleaned, the pipeline can be kept unobstructed, and the smoke exhaust efficiency of the smoke prevention and exhaust system is improved.

The invention discloses a tunnel anti-crack maintenance system design method, an anti-crack maintenance system and a construction method, and the method comprises the following steps: design preparation: obtaining tunnel parameters and indexes, including tunnel length, construction progress, maintenance time requirement, pedestrian crossing spacing distance, ventilation facility installation condition, water supply facility installation condition, and temperature and humidity inside and outside a tunnel hole; determining the position of a sub-maintenance system; designing a ventilation device of the maintenance system according to the installation condition of ventilation facilities in the tunnel hole, including designing a ventilation pipeline line; a circulation device of the maintenance system is designed according to the installation condition of water supply facilities in the tunnel hole, arrangement design of a water circulation pipeline and a reclaimed water recovery device is included, and an arrangement diagram is drawn; calculating a turnover period and a turnover distance; a humidifying device is designed, the humidifying device comprises a humidifying material sheet made of a wet film, water is supplied to the humidifying device through a circulating device, and a ventilation device is used for humidifying external air through the humidifying device; and calculating the optimal wind speed and circulating water temperature.

The invention discloses an intelligent moxibustion robot which comprises a moxa stick clamping and moxibustion applying system, a moxa stick pushing and igniting system, a moxa smoke and moxa ash layered filtering system and a cushioning differential moving system. The moxa stick clamping and moxibustion applying system comprises a tail end fixing device, a moxa stick clamping and pushing module, an ash cutting module and an ash storage module; the moxa stick pushing and igniting system comprises a moxa stick cabin, a moxa stick transverse pushing device, a moxa stick longitudinal jacking module and an electric arc igniting module; the moxa smoke and moxa ash layered filtering system comprises a smoke and ash removal device, a ventilation pipeline and a smoke removal fan; the differential moving system comprises a frame-shaped frame, a hub motor and a spring universal wheel. The intelligent moxibustion robot has the functions of differential autonomous movement, automatic moxa stick ignition and replacement, moxa ash removal, moxa smoke filtration and moxibustion application distance and temperature feedback, and can implement autonomous and efficient moxibustion operation.

The utility model discloses an aerial mobile flue gas gathering device which comprises a mobile cross beam arranged at the top of a plant, a gathering cover and a dust removal purifier are arranged on the mobile cross beam, an exhaust pipe and an air supply pipe which extend in the longitudinal direction are arranged in the gathering cover, the exhaust pipe is located in the middle of the gathering cover, and the air supply pipe is located in the middle of the gathering cover. The air supply pipes are arranged on the two sides of the exhaust pipe, the exhaust pipe is provided with a main ventilation pipeline connected with the dust removal purifier and a circulating air pipe connected with each air supply pipe, and attached jet flow along the top wall of the trapping cover is formed between the air supply pipes and the exhaust pipe through air supply openings and exhaust openings which are correspondingly arranged. The device can be moved according to a pouring site, dust-containing flue gas can be efficiently captured and purified with low air volume, the dust-containing flue gas is effectively prevented from forming a smoke dust suspension zone at the top of a plant, the equipment investment cost and the operation cost are fundamentally reduced, and the requirement of green and low-carbon development is met.

The utility model discloses a ventilation pipeline pulling closing mechanism which comprises a closing executing mechanism, a first pulling device and a second pulling device, the first pulling device and the second pulling device play a pulling role, and the driving end of the closing executing mechanism is connected with the second pulling device in a pulling mode. An exhaust hole is formed in the side portion of a cylinder of the closing execution mechanism, one end of a closing execution rod is fixedly connected with a second pulling device, and the closing execution rod drives the cover shell to cover the exhaust hole or be away from the exhaust hole. The problems that in the prior art, due to the fact that the whole valve is complex in structure, the valve cannot be smoothly closed, and the closing effect of the valve is easily affected are solved. The ventilation pipeline pulling closing mechanism is reasonable in overall structural design, and adsorption force can be transmitted through the magnet. And the closing execution structure can push the ventilation pipeline to execute the closing and sealing effects.

The utility model discloses a vehicle-mounted wireless charger with a heat dissipation structure, which relates to the technical field of vehicle-mounted chargers and comprises a front shell, an NFC (near field communication) antenna, a support, a coil, a printed circuit board assembly, a rear shell, an outer air duct shell, a fan and a fan shell, the outer air duct shell is arranged above the rear shell, the fan is arranged on the fan shell, and the heat dissipation structure is arranged on the fan shell. The fan shell is connected with the outer air duct shell, the front shell is provided with an air outlet, the rear shell is provided with a splitter, the splitter splits air output by the fan to form two ventilation ducts, one ventilation duct cools charging equipment, and the other ventilation duct cools a charger; the wireless charger is low in heat dissipation cost, simple in structure, compact in layout and relatively small in size, effectively improves the heating and heat dissipation problems of the charger, improves the use performance of the wireless charger, and is favorable for guaranteeing and prolonging the service life of the wireless charger.

The utility model relates to the field of air conditioning equipment, in particular to dust removal and ventilation air conditioning equipment. The ventilation device comprises a ventilation pipeline, a ventilation piece, a filter screen, a cleaning assembly and a spraying assembly. And the ventilation piece is arranged in the ventilation pipeline and is used for supplying / exhausting air to / from the indoor space. The filter screens are arranged on the two sides of the ventilation piece, connected to the inner wall of the ventilation pipeline and used for filtering dust in the air. The cleaning assembly is arranged on the filter screen and is used for scraping filtered matters on the filter screen. The spraying assembly is arranged on one side of the filter screen and sprays water mist to the filter screen, so that dust on the filter screen is condensed into floccules. According to the utility model, water is sprayed out from the atomizing nozzle, so that dust on the filter screen is condensed into floccules. And then a second motor is started to drive a scraper to move up and down on the two sides of the filter screen, and floccules on the filter screen are scraped into a dust collection box. Dust adhering to the two sides of the filter screen is cleaned at the same time, and the situation that the filter screen cannot work due to the fact that filter holes of the filter screen are blocked by the dust, and the ventilation and dust removal effects are poor is prevented.

The invention discloses a combined heat dissipation device of a server, and relates to the field of server heat dissipation, the combined heat dissipation device comprises a server cabinet, a plurality of combined heat dissipation mechanisms are installed in the server cabinet in the height direction of the server cabinet, each combined heat dissipation mechanism comprises a heat dissipation partition plate and a plurality of supporting pieces, and each supporting piece is in an inverted T shape; the supporting piece is used for being welded to the bottom of the computer module, the supporting piece is installed on the top of the heat dissipation partition plate and used for installing the computer module in a server cabinet in a suspended mode, the heat dissipation partition plate comprises an upper plate, a lower plate and a hollow ventilation pipe, the lower plate is connected to the bottom of the upper plate, and a heat dissipation cavity is formed in the bottom of the upper plate; the heat dissipation cavity is filled with the metal phase change material, the multiple hollow ventilation pipes are arranged between the upper plate and the lower plate, inner holes of the hollow ventilation pipes penetrate through the upper plate and the lower plate, heat dissipation is carried out in an air cooling and metal phase change material double-heat-dissipation mode, the good heat dissipation effect is achieved, and the high heat dissipation requirement can be met.

The utility model discloses a ventilation pipeline for an air compressor, and relates to the technical field of ventilation pipelines, the ventilation pipeline for the air compressor comprises the air compressor, the top of the air compressor penetrates through and is provided with a first pipeline, and the rear end of the first pipeline is provided with a cooling assembly; the cooling assembly comprises a cooling pipeline which penetrates through the rear end of the first pipeline and is fixedly connected with the rear end of the first pipeline, and the cooling pipeline, the connecting grid pipe, the cooling fan, the circulating pump, the bent pipe and the connecting pipe are matched with one another, so that compressed air enters the cooling pipeline and then is cooled through the cooling fan after entering the cooling pipeline. Water vapor is condensed through circulating cooling of a plurality of connecting grid pipes, so that primary separation of the water vapor and the air is achieved, moisture in the air can be adsorbed through the moisture absorption sponge through mutual cooperation of the arranged shell and the moisture absorption sponge, the moisture is left in the shell, the air continues to be conveyed through a third pipeline, and therefore the water vapor is effectively separated from the air. And gas-water separation is achieved, and electrical equipment cannot be damaged.

The utility model discloses an ultrahigh-cleanliness purification workshop for chip packaging, and relates to the technical field of purification workshops. The workshop ventilation device mainly comprises a workshop wall body, a ventilation pipeline, a ventilation fan, a filtering piece and an installation piece, the ventilation pipeline is horizontally arranged and penetrates through the workshop wall body, the ventilation fan and the filtering piece are both installed in the ventilation pipeline, the filtering piece comprises an installation frame, and a filtering plate is installed between the inner walls of the installation frame. The number of the installation parts is two, the installation parts are arranged on the two opposite sides of the ventilation pipeline respectively, each installation part comprises a U-shaped clamping plate, an opening of each U-shaped clamping plate is arranged on one side of the ventilation pipeline in a clamped mode, two limiting plates are fixed to the outer side wall of each U-shaped clamping plate, the installation frame is located between the two limiting plates, and a control plate is fixed to the outer side wall of each U-shaped clamping plate. Through the design of the U-shaped clamping plate and the limiting plate, the filter element can be quickly mounted and dismounted, so that the time required for replacing the filter screen is greatly shortened, and the production efficiency is improved.

The invention relates to a railway transportation system, and provides a brake system sensor for a railway tank car and a railway tank car operation monitoring system in order to solve the problem that the fusion level of an existing railway tank car system and a modern digital technology is low, the brake system sensor comprises a brake cylinder push rod displacement sensor, a brake cylinder pressure sensor, a main pipe pressure sensor and an air storage cylinder pressure sensor; the brake cylinder push rod displacement sensor is arranged between the brake cylinder and the brake cylinder push rod; the brake cylinder pressure sensor is arranged on a ventilation pipeline for connecting the brake pressure limiting valve and the brake cylinder; the main pipe pressure sensor is arranged on a flange joint of a braking main pipe of the railway tank car; the air storage cylinder pressure sensor is arranged on a ventilation pipeline between the air storage cylinder of the railway tank car and the connecting valve; the invention further provides a railway tank car operation monitoring system adopting the brake system sensor, operation data information of a railway tank car is monitored in real time, and a user can know the operation state of the railway tank car timely and conveniently.

The present invention belongs to the field of noise control, and discloses a low-frequency broadband ventilation duct muffler based on a rough necked Helmholtz resonator. The low-frequency broadband ventilation duct muffler includes a cylindrical shell (1), a ventilation hole (2) and a sound absorption unit (3). A ventilation hole (2) is arranged at the center of the cylindrical shell (1), and the sound absorption unit (3) is uniformly arranged between the ventilation hole (2) and the cylindrical shell (1), and the sound absorption unit (3) is annular; the sound absorption unit (3) includes a rough neck (3-1) and a cavity (3-2), the bottom end of the rough neck (3-1) is connected to the top end of the cavity (3-2), and the cavity (3-2) is arranged at the lower end of the whole low-frequency broadband ventilation duct muffler. The present invention is used to solve the problems that the existing ventilation duct muffler has a relatively high sound absorption peak frequency, a single sound absorption peak, and a relatively low sound absorption coefficient in the low-frequency range.

The utility model provides a door handle, a vehicle door and a vehicle, and belongs to the technical field of automobiles. A door handle is applied to a vehicle and comprises a base, a handle body and a ventilation pipeline. A mounting groove is defined in the base; the handle is movably connected with the base, and the handle covers a notch of the mounting groove; the handle is arranged on the base, the ventilation pipeline is arranged between the handle and the base, a plurality of ventilation holes are formed in the ventilation pipeline at intervals, the ventilation pipeline is connected with a thermal fluid generating device of the vehicle, and the thermal fluid generating device is connected with a controller of the vehicle. The door handle provided by the utility model is connected with the hot fluid generating device of the vehicle through the ventilating pipeline, so that the temperature of the fluid entering the ventilating pipeline is adjusted through the fluid generating device to ensure the uniformity of temperature change of each area in the mounting groove, and ice condensed around the handle can be melted; and the use experience of the user is improved.

The utility model belongs to the technical field of electrical equipment, and particularly relates to clothes treatment equipment. The clothes treating equipment comprises a first cylinder and a second cylinder which are arranged in parallel; a drying member; the ventilation pipeline comprises a first connecting part, a second connecting part and a third connecting part, the first connecting part of the ventilation pipeline is connected with the first barrel, the second connecting part of the ventilation pipeline is connected with the second barrel, and the third connecting part of the ventilation pipeline is connected with the drying component; an air inlet, a first air outlet and a second air outlet which are communicated with one another are formed in a third connecting part of the ventilation pipeline, and the valve plate is rotatably arranged in the third connecting part of the ventilation pipeline and used for adjusting the air flow flux of the first air outlet and the second air outlet.

The utility model discloses a closed gas hood for papermaking ventilation, and relates to the technical field of papermaking, the closed gas hood comprises a supporting bottom plate, the bottom surface of the supporting bottom plate is uniformly and fixedly connected with bottom cushion blocks through threads, the top surface of the supporting bottom plate is buckled with a sealing hood body, and the top surface of the sealing hood body is uniformly and fixedly provided with adjusting cylinders; a control panel is fixedly clamped to the side edge of the supporting bottom plate, side through grooves are symmetrically formed in the two side edges of the sealing cover body, a ventilation pipeline is horizontally inserted into one side edge of the supporting bottom plate and one side edge of the sealing cover body, an air channel groove is horizontally formed in the top face of the supporting bottom plate, and a supporting net plate is horizontally clamped to the top face of the inner side of the supporting bottom plate. A sealing top groove is formed in the top face of the supporting bottom plate, a control main board is fixedly connected to the inner side wall of the control panel in a clamped mode, an electric overall overturning opening structure is adopted so that feeding and discharging can be more convenient, and meanwhile various requirements for ventilation use can be met through an adjustable interval structure.

This application relates to a method, device, and computer for determining vehicle seat ventilation parameters. The method includes: obtaining three-dimensional contour information of a target object on a vehicle seat, physiological information of the object, and information about the vehicle's interior environment; performing a comfort analysis based on the physiological information of the object and the interior environment to determine the comfort physiological information; constructing ventilation duct information for the vehicle seat based on the three-dimensional contour information, using the comfort physiological information as a target condition; inputting the comfort physiological information and ventilation duct information into a fan control model to obtain initial fan operating parameters corresponding to each fan; performing a ventilation simulation based on the initial fan operating parameters to obtain fan operating information corresponding to each fan; for any fan, performing energy-saving optimization on the initial fan operating parameters based on the fan operating information to obtain target fan operating parameters; and fusing the target fan operating parameters to obtain seat ventilation parameters for the vehicle seat. This method can improve seat ventilation performance.

The present invention discloses an intelligent linkage low-temperature grain storage multi-functional ventilation system and its ventilation method, which includes a ventilation pipe network, a main controller, and several refrigeration and air-conditioning units, temperature sensors, etc. connected to the main controller. The ventilation pipe network includes an upper-layer annular ventilation duct, a bottom-of-bunker ventilation floor grille, a vertical ventilation duct along the corner of the bunker wall, etc. Among them, the upper-layer annular ventilation duct is installed parallel to the ground below the grain loading line on the side wall of the granary; the bottom-of-bunker ventilation floor grille includes a lower-layer annular ventilation floor grille and a semi-circular cross-section ventilation floor grille arranged in a "mountain" shape; the vertical ventilation duct along the corner of the bunker wall has an isosceles triangle cross-section, one group of which is connected to the upper-layer annular air duct, and the other group is connected to the lower-layer annular floor grille. A closed air valve is provided on each branch air duct, and the opening and closing are controlled by the main controller according to the requirements of different grain storage temperature control working conditions; the present invention can systematically solve the problem of grain storage loss caused by reasons such as "local heating", "blind ventilation", and "cold core and hot skin" during storage.

The utility model discloses a ventilating duct device of a building body, which belongs to the technical field of ventilating ducts and comprises a duct, a first connecting frame is fixedly mounted on the outer wall of one end of the duct, a second connecting frame is fixedly mounted at the other end of the duct, and a quick mounting component is arranged on the inner wall of the second connecting frame. A pulling and dismounting assembly is arranged on the quick-mounting assembly, the quick-mounting assembly comprises a baffle, a long rod is fixedly mounted on the outer wall of the baffle, and the long rod penetrates through a through hole formed in the outer wall of the second connecting frame; according to the rapid connection device, the rapid installation assembly is arranged, through the design, rapid connection of the ventilation pipeline is effectively achieved, the installation difficulty of the ventilation pipeline is greatly reduced, the operation process is simplified, rapid connection can be conducted by non-professionals, the work efficiency of laying the ventilation pipeline by workers is greatly improved, and the use effect is good.

The utility model discloses a construction ventilation system for a self-flowing drainage tunnel of a pumped storage power station, which structurally mainly comprises an outer tunnel, a fan, a ventilation pipeline and a dust removal piece, and is characterized in that fresh air is conveyed into the tunnel through the fan arranged at a tunnel opening and the ventilation pipeline connected to the fan; and then most of the vitiated air in the tunnel is absorbed and filtered through the dust removal piece, so that the vitiated air in the tunnel and discharged out of the tunnel is reduced, and the pollution of the vitiated air to the environment in the tunnel and outside the tunnel is reduced.