365 results about "Ventilation volume" patented technology

The invention discloses a multi-modal fusion exhibition building tall atrium natural ventilation evaluation method. The method comprises the steps that multi-modal data are obtained, wherein the multi-modal data comprise meteorological time sequence parameters, building three-dimensional point cloud and opening geometric parameters and air conditioner cooling parameters; inputting the multi-modal data into a multi-modal fusion neural network model to obtain a natural ventilation evaluation result, the natural ventilation evaluation result comprising vertical temperature distribution of the atrium and the ventilation quantity of each opening of the atrium; wherein the multi-modal fusion neural network model comprises a meteorological time sequence feature extraction module, a building geometric coding module, an air conditioning system parameter coding module, a cross-modal feature fusion module, a vertical temperature field prediction module and a ventilation quantity prediction module. According to the method, a space-time cooperative sensing mechanism of meteorological time sequence dynamic, building space topology and air conditioner parameter features is established, and the technical bottleneck of a traditional method in the aspects of cross-modal feature space alignment and interaction efficiency is broken through.

The present invention discloses a storage box with adjustable air vents, the number or size of the first air vents exposed can be adjusted by rotating the rotary adjustment valve, and the number or size of the second air vents exposed can be adjusted by shifting the sliding adjustment valve, so that the ventilation volume of the air vents at two sides can be changed or even the air vents can be completely closed, and the freshness of bread can be further improved by controlling the convection of air flow to affect the change of air humidity. The rotary adjustment valve and the sliding adjustment valve both have a very simple structure, fewer parts and low cost, and are very convenient to mount, maintain and use.

The invention provides a partition temperature control irradiation device, and belongs to the technical field of nuclear irradiation devices, the partition temperature control irradiation device is characterized in that a first connecting pipe connects a first test section and a second test section, by adjusting the first connecting pipe, on one hand, the first connecting pipe can play a role in protecting a second pipe group, and on the other hand, by adjusting the first connecting pipe, the second pipe group can play a role in protecting the second pipe group; the relative position between the first test section and the second test section can be adjusted, so that the axial position of the second test section can be adjusted, and the ventilation volume of temperature control loops of the first pipe group and the second pipe group and the component proportion of mixed gas are respectively controlled; according to the irradiation device, samples at different positions in the axial direction of the irradiation pore channel can meet different or same test temperature requirements, control over multiple test temperatures is achieved in the same irradiation device, the temperature control range of the irradiation device is expanded, and the temperature control precision of the irradiation device is improved by adjusting the axial position of the second test section.

The utility model relates to the technical field of ships, in particular to a ship ventilator with a silencing structure, which is characterized in that an adjusting threaded rod is screwed and inserted in a top cap through a bearing, a hand wheel is fixedly arranged at the upper end of the adjusting threaded rod, an adjusting plate is movably arranged in the top cap, and an inner cylinder is fixedly arranged at the lower part of the adjusting plate; a resistive silencer is fixedly arranged at the position, below the inner cylinder, in the cylinder body, a first fixing block is fixedly arranged on the right side of the upper portion of the top cap, a roller is rotationally connected to the first fixing block through a shaft and a bearing, a tape is wound around the roller, and a second fixing block is fixedly arranged on the right side of the inner top wall of the top cap. The winding shaft is rotationally connected to the second fixing block through a shaft and a bearing, coil springs are fixedly arranged in the front side wall and the rear side wall of the second fixing block correspondingly, noise can be reduced in the ventilation process, the ventilation quantity can be adjusted according to requirements, and indication of the current adjustment quantity is provided for workers.

The invention discloses a tunnel oxygen supply control method based on multi-parameter coordination, and relates to the technical field of tunnel construction, and the method comprises the steps: constructing a multi-source environment monitoring data set, training a target ventilation quantity prediction model fused with a high-altitude correction coefficient based on the data set, and outputting an initial target ventilation quantity and an oxygen supply parameter; generating a pre-regulation instruction based on the initial target ventilation quantity and the oxygen supply parameters, simulating an instruction execution process through a digital twin virtual simulation model, and outputting oxygen supply evaluation parameters of oxygen content distribution, wind pressure loss and energy consumption of each block of the tunnel; constructing a tunnel oxygen supply evaluation model, and comparing oxygen supply evaluation parameters obtained by simulation with a safety threshold; and executing the formal adjustment instruction. Through multi-dimensional sensing treatment, high-altitude self-adaptive calculation, digital twinborn simulation verification, multi-scene parameter optimization, multi-device collaborative linkage and model dynamic evolution technologies, the breakthrough of tunnel oxygen supply from static experience control to dynamic precise intelligent regulation is realized.

The utility model relates to the technical field of elevators, in particular to an elevator car ventilation device capable of adjusting ventilation quantity, which comprises a car, a plurality of air outlet holes a which are distributed at equal intervals front and back are arranged on the middle lower portions of the left side and the right side of the inner wall of the car, and a plurality of air outlet holes b which are distributed in a matrix are arranged on the left side and the right side of the inner wall of the car and located above the air outlet holes a. Adjusting assemblies are arranged on the left side and the right side of the inner wall of the lift car correspondingly, each adjusting assembly comprises two L-shaped fixing vertical plates which are symmetrically arranged front and back, a shielding plate is slidably connected between the two L-shaped fixing vertical plates, and the position, close to the middle of the top edge, of the outer side of the shielding plate is in threaded connection with a pressing bolt. According to the elevator car ventilation device capable of adjusting the ventilation quantity, the opening and closing states of the air outlet hole b can be flexibly adjusted through the baffle plate in the adjusting assembly, so that the air flow is controlled, passengers can adjust the ventilation intensity according to actual requirements, and the situation that passengers feel uncomfortable due to large air flow in winter or under other special conditions is avoided.

The present invention relates to a "plum blossom pile" type air-permeable brick for composite ladle and a preparation method thereof, wherein the air-permeable brick comprises a dispersion block, a castable, a cover plate, an air chamber, a steel shell, and a slit, wherein the dispersion blocks are evenly and spacedly arranged from the center to the outer circle, the castable is filled between the dispersion blocks, the slits are evenly distributed in the castable, the steel shell is wrapped at the outermost part of the air-permeable brick, the cover plate is at the bottom of the air-permeable brick, and an air chamber is left between the dispersion block, the castable and the cover plate. The air-permeable brick produced by the present invention has good air flow stability and uniformity, large gas ventilation volume, high-strength brick body, good anti-permeability and thermal vibration stability, and a long service life.

The invention provides an air purification filter element control method and system based on environment awareness, and the method comprises the steps: collecting environment parameter data of a to-be-purified space and working state data of purification equipment, extracting the spatial and temporal change characteristics of the pollutant concentration in the environment parameter data, and generating environment characteristic data; based on the ventilation quantity and the environment characteristic data in the working state data, calculating the mass flow of each pollutant passing through the filter element, and performing weighted correction on the mass flow through a preset load coefficient to obtain a current load value; cumulative calculation is conducted on the load history data, the pressure difference distribution data and the current load value, and filter element service life parameters are obtained; target operation parameters are determined based on the filter element service life parameters and the environment parameter data, and a fan and a valve of the purification equipment are adjusted; according to the method, accurate evaluation of the state of the filter element is realized through multi-point environmental perception and load accumulation calculation, and dynamic regulation and control are performed by combining the environmental pollution degree and the service life of the filter element, so that the purification efficiency is improved and the service life of the filter element is prolonged.

The utility model relates to a multifunctional spring type breathable anti-explosion valve device. The multifunctional spring type breathable anti-explosion valve device comprises a breathable valve body (8), a first diaphragm (2), a second diaphragm (7), a first spring assembly and a second spring assembly. A first ventilation hole (8.1) and a second ventilation hole (8.2) are formed in the ventilation valve body (8); the first diaphragm (2) is connected with the breather valve body (8); and the second diaphragm (7) is connected with the ventilation valve body (8) and is arranged between the first diaphragm (2) and the first ventilation hole (8.1). Compared with the prior art, the spring type ventilating explosion-proof valve device has the advantages that the second diaphragm is additionally arranged to reduce external wet air flowing into the battery pack while the requirement on large ventilation volume of thermal runaway is met, and condensation of the battery pack is improved to the greatest extent to prevent short circuit in the battery pack.

The invention discloses an efficient heat dissipation high-voltage cabinet, and relates to the field of high-voltage cabinets. Through the cooperative operation of the heat dissipation fan at the bottom of the cabinet body and the ventilating fan at the top of the cabinet body, hot air and dust can quickly enter the air guide cavity through the long groove and then are exhausted through the ventilating fan, the flowing speed of air in the cabinet is increased, the heat dissipation efficiency is greatly improved, and the damage of high temperature to the high-voltage cabinet is effectively reduced through the efficient heat dissipation mode; meanwhile, the cleaning mechanism can automatically clean the filter screen, the cleaning brush can be driven by the driver to ascend, descend, rotate and transversely reciprocate, floating dust on the surface of the filter screen is cleaned in an all-dimensional mode, impurities are adsorbed, when the ventilator rotates reversely, airflow further blows off dust adsorbed by the filter screen, the filter screen is kept smooth all the time, and the stable ventilation quantity is maintained; therefore, the problems of reduced ventilation sectional area and increased airflow resistance caused by blockage of the filter screen are avoided, continuous and efficient heat dissipation of the high-voltage cabinet is ensured, frequent manual cleaning of the filter screen is not needed, and the labor cost and the maintenance time are saved.

The invention provides a dust monitoring ventilation system and monitoring equipment, the dust monitoring ventilation system comprises a dust monitoring module, an alarm module, a debugging module and a data recording module, after the monitoring module collects dust concentration data in a measurement working area in real time, a preset safety threshold value is compared according to the data, and when the dust concentration data exceeds the preset safety threshold value, the dust monitoring ventilation system is started. When the dust content exceeds the standard, the alarm signal can be triggered, the control unit can adjust the air volume generated in the ventilation system, namely, when the dust content exceeds the standard, the dust concentration in the air can be effectively reduced in time, and compared with manual intervention, the device is quicker and more accurate, and the response speed is high; the working environment can be quickly recovered to the safety level, air containing high-concentration dust can be quickly discharged out of a working area by increasing the ventilation quantity, fresh air is introduced, and harm of the dust to health of workers is reduced.

The invention provides an underground coal mine ventilation control method and device, electronic equipment and a storage medium, and belongs to the technical field of mine ventilation. The method comprises the steps that the type and concentration characteristics of harmful gas in a target area are determined according to data collected by a biosensor array; determining time sequence data of the harmful gas according to the concentration of the harmful gas, and determining a target concentration change rate of the harmful gas according to the time sequence data; according to the concentration of the harmful gas, the target concentration change rate and the current underground acoustic wave characteristics of the coal mine, the target air volume of the target area is determined; according to the target air volume of the target area, the ventilation resistance of the target area and the current opening degree of the ventilation valve, the opening degree of the ventilation valve is controlled, and the ventilation air volume is determined. According to the coal mine underground ventilation control method and device, the electronic equipment and the storage medium, the ventilation quantity can be accurately and timely adjusted.

The ventilation device comprises a ventilation pipeline and a supporting frame, the ventilation pipeline is installed on the top of the supporting frame, a ventilation pipe is arranged on the outer wall of the ventilation pipeline, one end of the ventilation pipeline is communicated with an air inlet pipe, a sliding rail is installed on the inner wall of the air inlet pipe, a filter is connected to the sliding rail in a sliding mode, and a limiting block is installed on the inner wall of the ventilation pipeline. The adjusting assembly comprises an electric push rod, a connecting rod, a rotating rod and a baffle, the connecting rod is installed at one end of the electric push rod, the rotating rod is installed at one end of the connecting rod, the baffle is rotationally connected to the rotating rod, and the electric push rod is installed on one side of the outer wall of the ventilation pipeline. By arranging the adjusting assembly, the ventilation quantity can be accurately adjusted according to actual needs, different working conditions and environment changes are adapted, different temperature, humidity and air circulation requirements in the refrigeration house are met, it is ensured that air in the refrigeration house is circulated and replaced, and the optimal ventilation effect and air quality are achieved; and the temperature and the humidity in the refrigeration house are always kept in a proper range.

The utility model provides a mask internal airflow demonstration device which comprises a gas generation module, an airflow test module, a breathing machine module and a control system module, the gas generation module is used for generating aerosol smog, and the airflow test module is used for simulating the flowing process of airflow inside and outside a gas mask. And the respirator module is used for simulating the artificial respiration process and can adjust the ventilation volume and the respiration frequency. According to the utility model, the technical problem that the flowing process of the air flow in the gas mask cannot be directly observed in the traditional teaching and actual operation can be solved, and the visual demonstration of the flowing condition of the air flow in the mask can be realized.

The application provides a kiln ventilation regulation device, comprising: a ventilation pipe; a protection shell is fixedly installed on the surface of the ventilation pipe, a connecting shell is fixedly installed on one side of the protection shell, a supporting plate is fixedly installed in the inner cavity of the ventilation pipe, a supporting rod is fixedly installed on the top of the supporting plate, and a supporting disc is fixedly installed on the top of the supporting rod. Through the design of the regulation assembly, the regulation assembly adopts a worm, a worm wheel, a rotating gear and an adjusting disc transmission structure, worm and worm wheel transmission improves stability, the rotating gear and the teeth can realize precise adjustment of the angle of the adjusting fan blade, the ventilation volume control error is reduced, the precision is improved compared with traditional manual adjustment, multiple adjusting fan blades are linked through adjusting rods and adjusting discs, the ventilation pipe inner cavity ventilation cross-sectional area can be changed synchronously, the airflow deflection problem of traditional single baffle adjustment is avoided, the kiln working condition rapid change demand is adapted, a sealing strip is arranged on the top of the adjusting fan blade, and heat loss caused by traditional baffle gap air leakage is avoided.

The utility model discloses an adjustable ventilation air tower structure, comprising a supporting main frame fixed on both sides of a roof vent, a cross frame connected and fixed on the top of the supporting main frame, a rain shield with return water slopes on both sides is installed on the upper end of the cross frame, and also comprises a surrounding plate arranged at the outermost side of the ventilation air tower and fixedly installed with the supporting main frame, side air outlets are provided on both sides of the bottom of the surrounding plate and at the edges of both sides of the roof vent, a valve plate is arranged in parallel below the cross frame and is located directly above the roof vent, and the valve plate and the cross frame are vertically slidably connected, a servo motor is arranged on the upper end of the cross frame, a threaded screw is vertically connected to the output shaft end at the bottom of the servo motor, and the threaded screw and the valve plate are threadedly connected, and the valve plate is more stable when lifting and lowering through the technical measure of lifting the valve plate; and in the lifting process, when the valve plate rises, the ventilation volume of the roof vent will increase, and vice versa, thereby achieving the effect of ventilation volume regulation.

The invention relates to an automatic indoor air pressure regulating valve, and belongs to the technical field of building ventilation equipment. The device is composed of a valve body made of a thermal resistance material, an air pressure driving assembly, a spring pre-compression regulator, a filtering module and a selectable sterilizing module. The device is technically characterized in that the inner body of the valve is automatically controlled to slide to open and close through air pressure difference to adapt to ventilation quantity. The valve body is made of high-heat-resistance high-molecular materials, and the heat bridge effect of the regulating valve is avoided. And the continuous adjustment of the opening and closing threshold within the range of 0.1-50Pa is realized by the threaded knob type adjuster. A UVC lamp tube (253.7 nm) and an ozone generator (0.05-0.1 ppm) can be selectively integrated, and three sterilization modes are supported; and the requirement for the air volume of 100-1000 m / h is met. The system is suitable for environments with ventilation requirements such as residences, factories, storage, medical treatment and laboratories, is particularly suitable for environments with energy-saving and heat-insulating requirements, and has self-adaptability, low-noise and efficient air treatment capacity.

The present invention discloses an oscillating heat-generating high-temperature hot air blower, which relates to the field of gas mechanical technology, and comprises a casing, wherein an air outlet pipe is installed on the top of the casing, and an air inlet pipe is installed at the side center position of the casing. In the present invention, heat can be generated by a gas storage mechanism, and wind can be sucked in from the air inlet pipe and discharged from the air outlet pipe through fan blades, and the wind will absorb heat at the same time. When high ventilation is required, the rotation speed of the motor can be increased, so that a plurality of centrifugal moving mechanisms can be moved, thereby driving a gear transmission mechanism, a worm gear transmission mechanism and a pulling mechanism to move, and then an outer bearing can be moved. The outer bearing drives the gas storage mechanism to move through a plurality of pushing mechanisms, so that the radius of the gas storage mechanism is reduced, and its centrifugal force is reduced, so that when the ventilation volume is increased, the temperature will not be increased at the same time. At the same temperature, different ventilation volumes can be provided to meet the use of sites of different sizes.

The utility model provides an energy-saving building window body with an adjustable ventilation channel, and relates to the technical field of building window bodies. The energy-saving building window with the adjustable ventilation channel comprises a window body and further comprises a ventilation groove, the ventilation groove is formed in the window body, a plurality of wind shields are rotationally installed in the ventilation groove, a movable groove is formed in the window body and located below the ventilation groove, a plurality of worm wheels are rotationally installed in the movable groove, and the worm wheels are rotationally installed in the movable groove. The top ends of the multiple worm wheels penetrate through the top of the movable groove and are coaxially connected with the multiple wind shields correspondingly, and worms are installed on the sides, located in the movable groove, of the multiple worm wheels in a meshed mode. The driving assembly is located in the window body and used for driving the worms to rotate; the ventilation quantity and the wind direction of the ventilation groove can be conveniently adjusted by a person, operation is easy and rapid, use by the person is facilitated, ventilation can be guaranteed while sunshade is achieved, and the person can conveniently store the sunshade curtain.

The utility model discloses a balcony guardrail, which relates to the technical field of house building, and comprises a vertical rod, a cross rod, a first punching plate and a second punching plate, the vertical rod is slidably installed on the cross rod, the first punching plate is connected with the cross rod, a first ventilation position is formed on the first punching plate, the second punching plate is connected with the vertical rod, and the second ventilation position is formed on the second punching plate. The first punching plate and the second punching plate are arranged in parallel, a second ventilation position is formed on the second punching plate, and the first ventilation position and the second ventilation position are arranged in a staggered mode. According to the balcony guardrail, the first punching plate and the second punching plate are arranged to achieve safety protection, meanwhile, the first ventilation position and the second ventilation position are formed in the first punching plate and the second punching plate respectively, and the ventilation quantity is adjusted by adjusting the overlapped and aligned area of the first ventilation position and the second ventilation position; therefore, the balcony guardrail can simultaneously realize safety protection and indoor ventilation.

The application discloses a layout design method and device for a ventilation pressure regulating facility of an underground water storage cavern, and the method comprises the following steps: determining layout parameters of a tunnel group of the water storage cavern; constructing a water power simulation model of the water storage cavern composed of the tunnel group based on a one-dimensional water flow motion control equation; solving a distribution of a water hydraulic characteristic value along a path under a non-constant flow condition according to the water power simulation model, determining a space-time distribution of a tunnel section in a pressurized state and a non-pressurized state, judging a required ventilation amount according to the space-time distribution, and initially drafting a layout scheme of a cavern ventilation pressure regulation; adjusting the layout parameters, checking and analyzing whether the layout scheme of the ventilation pressure regulating facility is reasonable under the non-constant flow operation condition, and correcting the layout parameters of the water power simulation model established based on the one-dimensional water flow motion control equation according to a calculation result; and repeating the steps of adjusting, checking and correcting until a reasonable layout scheme of the ventilation pressure regulating facility is constructed.

This invention discloses an adaptive cross-section flexible ventilation duct and method. Currently, ventilation ducts used in tunnel construction are mostly in regular geometric cross-sections such as circles and rectangles. This invention, located within a ventilation duct area on one side of the tunnel roof, includes a flexible duct. The cross-section of the flexible duct is a closed area formed by its lower, right, and upper boundaries. Airbags are provided on the outer surfaces of the lower and right boundaries. Each airbag includes multiple spaced longitudinal and transverse airbags. The longitudinal airbags are positioned along the tunnel length, and the transverse airbags are perpendicular to the longitudinal airbags. The two ends of each transverse airbag are connected to two adjacent longitudinal airbags. This invention employs an adaptive shape structure. During ventilation, the boundary of the flexible duct coincides with the area where the duct can be installed, maximizing space utilization, creating a larger ventilation area, thereby achieving a larger ventilation volume, and ultimately achieving a longer ventilation distance than circular ventilation ducts.

The utility model provides a tracheotomy catheter respiratory capacity regulation and control device, which comprises an upper part, a lower part, a lower part and an upper part, the upper part is of a cylindrical structure and is arranged in a tracheotomy catheter, and a buckling brim is arranged at the top of the upper part and is buckled with the tracheotomy catheter; the lower part is of a cylinder structure, is fixedly arranged in the tracheotomy catheter and is movably connected with the upper part; one end of the respiratory capacity adjusting part is arranged on the top of the inner side of the lower part, and the other end of the respiratory capacity adjusting part is arranged on the inner side of the upper part through a clamping piece. According to the tracheotomy catheter, the upper part and the lower part which are of the cylindrical structure are installed at the tube opening of the tracheotomy catheter, the lower part is clamped on the tube wall of the tracheotomy catheter through the anti-skid layer, the superficial area of the respiratory capacity adjusting part is controlled by rotating the upper part, and therefore the ventilation capacity in the tracheotomy catheter can be accurately adjusted and controlled. The device is simple in structure and convenient to operate, and the respiratory capacity can be adjusted in real time according to specific requirements of patients.

The invention relates to a device for automatically pressing a breathing balloon. The device comprises a mask, an exhalation valve, an inhalation valve, the breathing balloon, a three-way pipe, a pulling piece strip and a main controller. The mask is fixed to the face of a patient through the tearing adhesive tape and used in cooperation with the exhalation valve and the inhalation valve to form a breathing loop. The exhalation valve and the inhalation valve are both connected with the three-way pipe, a detection chip is arranged in the three-way pipe, the ventilation capacity is detected through the air pressure and the flow speed, and data can be sent to the main controller through wireless radio frequency signals; the pulling sheet strip is wound outside the breathing balloon, a main controller is fixed at one end of the pulling sheet strip, a transmission gear is arranged at the bottom end of the main controller and connected with the pulling sheet strip, the three-way pipe is provided with an air inlet, an air outlet and a pressure tapping port, and the pressure tapping port is connected with a pressure sensor of the breathing balloon. Compared with the prior art, the pressing force can be accurately guaranteed, and the pressing ventilation capacity can be guaranteed; the universality is realized; and meanwhile, clinging and regular pressing of the mask are ensured.

The invention provides an optimization method and system for a marine engine room ventilation system, and relates to the technical field of analogue simulation, and the method comprises the steps: constructing a ventilation system simulation model of a marine engine room; according to the structure information and the working condition information of the ventilation system simulation model, determining the total heat dissipating capacity of the equipment; determining a reference ventilation quantity and a ventilation quantity area distribution table according to the total heat dissipation quantity of the equipment; setting the reference ventilation quantity and the ventilation quantity area distribution table into a ventilation system simulation model; performing fluid dynamic simulation on the ventilation system simulation model to generate a problem list; the optimal ventilation system structure parameters are optimized and determined through a swarm intelligence algorithm by taking weakening of hot spots, reduction of dead corner volume fraction reduction and weakening of a backflow path as targets. Hot spot areas in the cabin can be effectively weakened, the volume fraction of ventilation dead corners is reduced, the short-circuit backflow phenomenon is weakened, and the overall energy efficiency and design reliability of a ventilation system are remarkably improved while safe operation of equipment is guaranteed.

The utility model belongs to the technical field of pipeline conveying, and particularly relates to a powder conveying device which comprises a conveying pipe and a sedimentation supporting pipe, a negative pressure suction fan is arranged at the discharging end of the conveying pipe, the upper end of the sedimentation supporting pipe is fixedly connected to the conveying pipe, and the lower end of the sedimentation supporting pipe is supported on the horizontal plane. A discharging pipe is arranged on one side of the sedimentation supporting pipe, the conveying pipe is connected to the grate cooler through a hot air pipe, a ventilation pipe is arranged on the sedimentation supporting pipe, and a wind shield is arranged at the position of the ventilation pipe in an openable and closable mode. Hot air generated by heat exchange of the grate cooler is used for replacing a hot-air blower, due to the fact that the temperature of the hot air generated by the grate cooler is high, powder is prone to being excessively dried, the ventilation pipe is arranged to introduce natural air into the material conveying pipe for cooling, the size of the ventilation pipe shielded by the wind shield is adjusted according to the temperature measured by the material conveying pipe, and then the ventilation quantity is changed. And the air inlet amount can be controlled by adjusting the air baffle, and long-time overheating of the conveying pipe is avoided.

This invention discloses an intelligent ventilation and control system for hazardous waste containers, relating to the fields of ventilation systems and control technology. It aims to solve the technical problems of traditional hazardous waste container ventilation systems, such as low ventilation efficiency, high energy consumption, inability to dynamically adjust ventilation volume according to the hazardous waste status, and the tendency to lead to the accumulation of harmful gases or resource waste. The system includes: a container monitoring module, located inside and outside the container, for collecting environmental parameters; an intelligent ventilation execution module, used to coordinate with the ventilation and natural ventilation openings to adjust the ventilation state inside the container; a linkage control center, used to process monitoring data and generate control commands; and an energy supply unit, providing power to all modules of the system. This invention, through a dynamic strategy of "natural ventilation priority + mechanical ventilation assistance," accurately matches the ventilation needs of different hazardous wastes, solving the core problem of existing systems' inability to dynamically adjust according to the characteristics of hazardous waste and the real-time environment.

A process, a signal processing unit and to a ventilator automatically calculate a set point for a frequency, with which the ventilator performs ventilation strokes and thereby mechanically ventilates the patient. An alveolar or proximal minute volume is predefined. A lung time constant for the lungs of the patient is determined. The volume of a dead space in a fluid connection between the lungs and the ventilator is determined. A mandatory frequency set point (fset,mand) for the mandatory ventilation of the patient is calculated. An ideal frequency (fspon), with which the patient can achieve the minute volume by means of spontaneous breathing, is calculated. The ventilation frequency set point is calculated as a weighted average of the mandatory frequency set point (fset,mand) and of the ideal frequency (fspon). The averaging depends on a determined actual intensity of the spontaneous breathing of the patient.

The utility model discloses an air volume adjusting valve which is arranged at an air outlet of a ventilation pipeline. Comprising a valve body, blades and a control box arranged on the outer side of the valve body. A motor and a driven gear are arranged in the control box; a controller is arranged on the outer side of the control box; the motor is electrically connected with the controller, and rotation of the motor is controlled through the controller. The output end of the motor is connected with a power wheel, and the power wheel is meshed with the driven gear at the uppermost part; the blades are arranged on the rotating shaft, and wind speed sensors are arranged on the blades; the wind speed sensor is electrically connected with the controller; a detachable filter screen is arranged on the valve body, and the problems of accurate control over the ventilation quantity in the valve body and filtration of ventilation gas are solved.

The blade angle adjustable ventilation device comprises a ventilation frame, positioning plates are vertically installed on the two sides of the ventilation frame, a supporting plate is fixedly installed on the upper portion of an inner cavity of the ventilation frame, blades are transversely installed below the supporting plate at equal intervals, a supporting shaft is fixedly installed at the center of the top of each blade, and the supporting shaft is fixedly installed on the lower portion of the inner cavity of the ventilation frame. The upper end of the supporting shaft penetrates through the supporting plate and extends to the position above the supporting plate to be fixedly provided with a gear, a gear ring is installed outside the gear in a meshed mode, and an adjusting block is fixedly installed in the middle of the front face of the gear ring. The angle of the blades can be conveniently and quickly adjusted by rotating the adjusting rotating disc, so that the ventilation quantity and the ventilation direction are flexibly controlled according to actual requirements, the practicability and the applicability of the ventilation device are greatly improved, the adjusting rotating disc with the adjusted angle can be locked and fixed through the arrangement of a locking rod and an annular fixing groove, and the practicability is high. The threaded rod is prevented from rotating under the influence of external force, and the ventilation effect stability is ensured.