161 results about "Controlled ventilation" patented technology

The invention belongs to the technical field of building ventilation, and particularly discloses an intelligent building ventilation energy-saving system based on AI dynamic adjustment, and the system is characterized in that the system comprises a sensing layer which is used for collecting indoor and outdoor environment parameters in real time; the data transmission layer transmits various data acquired by the sensing layer to a central control system in real time through an Internet of Things communication technology, and is provided with a data caching mechanism; the central control system comprises a data processing module and is used for preprocessing the received data; the AI analysis module is used for establishing an indoor air quality prediction model, a personnel activity mode prediction model and a ventilation system energy consumption model by applying a machine learning algorithm; the control decision module generates an optimal ventilation control strategy; and the execution layer comprises a fresh air fan and an exhaust fan which adopt a frequency conversion technology, and an air supply outlet and an exhaust outlet which are provided with electric air valves, and further comprises a function of receiving a control instruction of the central control system and controlling ventilation equipment in real time.

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 invention discloses an energy-saving type ventilation curtain wall and a construction method thereof. The ventilation curtain wall comprises a frame, a mounting piece, an inner-layer curtain wall body, an outer-layer curtain wall body, a shutter, a first meshing piece, a second meshing piece, a driven wheel, a driven piece, a multi-class sensor, a flow guide piece, a ventilation opening, an adjusting piece, a linear driving assembly and a purification assembly. A main control chip is arranged on the outer side of the inner-layer curtain wall; a flow guide piece on the inner side of a frame guides airflow; a ventilation opening and an adjusting piece are matched to control the ventilation quantity; a purification assembly purifies air; the construction method comprises the steps of S1, preparation before construction, S2, base layer treatment, S3, installation of the frame and the inner-layer curtain wall, S4, installation of the outer-layer curtain wall and the flow guide part, S5, installation of the power mechanism, S6, installation of the sensor and the purification assembly and S7, system debugging. Excessive exchange of indoor and outdoor heat can be reduced, energy consumption is reduced, the system adapts to different climates, construction is easy and convenient, and efficiency is high.

A ventilation hood includes a main frame which faces an appliance accessible from a front of the appliance, the main frame defining a through-hole passing through the main frame, a motor module on the main frame and configured to suck in air through the through-hole, the motor module including a duct, a motor having an axis, and an exhaust fan driven by the motor and defining a blowing direction perpendicular to the axis of the motor, and a controller configured to control operation of the ventilation hood and a rotation velocity of the exhaust fan. The axis of the motor is in a direction from the front of the appliance to a rear of the appliance which is opposite to the front. The controller is on the main frame and at a front of the duct which corresponds to the front of the appliance.

The invention relates to a method for controlling a ventilation device (2), the ventilation device (2) having an inlet (4) for receiving an inlet air (5), a regulating section (9) for regulating the received inlet air (5), an outlet (6) for discharging an outlet air (7), and a control device (8). The method comprises the following steps: determining a setpoint window for at least one air parameter of the outlet air (7), preferably by means of the control device (8); the control device (8) controls the adjustment of the inlet air (5) in the adjustment section (9) on the basis of the setpoint window. The invention also relates to a ventilation device (2) and a device (1) with a ventilation device (2).

Method for controlling a ventilation system, ventilation system, and associated ventilation installation. This method for controlling a ventilation system includes a remote control and a ventilation grille, which includes battery-powered receiving means. Cyclically, the ventilation grille switches between a sleep phase (ΔTs), during which the receiving means are off, and a wake-up phase (ΔTr), during which the receiving means are on and ready to receive a control signal sent by the remote control. The control method also includes actuation of the remote control by a user, so as to send a control signal for a transmission time (ΔTt) that is longer than the sleep time (ΔTs). Figure for the abstract: Figure 2

1. The name of the design product: pipe valve (DN250). 2. The use of the design product: for controlling the opening and closing of the ventilation pipe of toxic gas. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The disclosure provides a method of operating a (HVAC) system. The method includes measuring a concentration of a gas in the target space, and determining that the concentration exceeds a gas concentration threshold. The method includes determining that operation of the HVAC system in a ventilation mode is indicated to reduce the concentration of the gas. The method includes determining a total capacity of the HVAC system, and determining a current capacity of the HVAC system. The method includes causing the HVAC system to operate in the ventilation mode after validating that the total capacity is greater than the current capacity during operation of the HVAC system in the ventilation mode.

Disclosed is a personal sauna booth. A personal sauna booth according to one aspect of the present invention may comprise: a fixed frame having an inner space; a movable frame movably installed on the fixed frame so that the inner space is expanded; a ventilation fan for generating fluid flow so that a fluid filled in the inner space is discharged to the outside; and a controller for controlling the operation of the ventilation fan, wherein the controller can control so that the ventilation fan operates after a sauna session ends.

This invention discloses a method, apparatus, equipment, and medium for controlling a tunnel ventilation fan based on tunnel environment monitoring, relating to the field of automated energy-saving control technology. The method includes: acquiring a vehicle model image set and vehicle images and spectral imaging images of vehicles entering the tunnel, wherein the vehicle model image set includes sample images of several different vehicle models; identifying the vehicle model; using the spectral imaging image of each vehicle as input, monitoring exhaust emissions according to the vehicle model using a vehicle exhaust emission model, obtaining exhaust emission monitoring values, and controlling the operating state of the tunnel ventilation fan based on the exhaust emission monitoring values. This solves the problems of existing ventilation methods for long-distance tunnels, which cannot be individually controlled according to the tunnel environment, resulting in high energy consumption and high maintenance and operating costs.

The invention relates to the field of building energy conservation, in particular to a control method and system for a flat-urgent combined ventilation air conditioning unit and a storage medium. The control method comprises the steps that the set air supply amount of an air supply outlet of the unit into a room is set, and a particulate matter concentration control target C0 is set; detecting particulate matter concentrations C1 and C2 in real time; if C1 is smaller than or equal to C0, the opening degree of the first air valve and the opening degree of the second air valve are fully closed, and the opening degree of the third air valve and the opening degree of the fourth air valve are fully opened; if C1 is larger than C0, the optimal air valve opening degree combination is solved by taking the minimum total resistance of air flowing through the bypass air duct and the deep filtering air duct as the target, and the air valve opening degree is adjusted to the optimal air valve opening degree; the current air supply amount is detected in real time, and the fan rotating speed is adjusted to the target rotating speed; if C2 is smaller than or equal to C0, the current air valve opening is kept for operation, and otherwise, the steps are repeated till C2 is smaller than or equal to C0. Accurate and stable output of the air supply amount is achieved, it can be guaranteed that the indoor air quality accurately meets the control requirement, and the operation energy consumption of the ventilation and air conditioning system can be remarkably reduced.

The utility model relates to a fireproof ventilating window, and relates to the field of ventilating equipment. The device comprises a frame used for being fixed to a target device, a ventilation opening is formed in the frame, a fireproof plate is movably arranged on the frame, the fireproof plate can control the ventilation opening to be opened and closed through movement, and a control assembly used for controlling the fireproof plate to turn over is arranged on the frame. The fireproof and fire-retardant effects of the ventilation window can be improved.

The invention relates to a subway tunnel hydrogen energy vehicle high-pressure hydrogen leakage monitoring and hydrogen discharging method. The method comprises the steps that hydrogen sensors are arranged on a subway tunnel ceiling at preset intervals; the hydrogen concentration measured by each hydrogen sensor is obtained, and the hydrogen sensor with the hydrogen concentration larger than or equal to a first preset threshold value is marked as a target hydrogen sensor; determining a tunnel where the target hydrogen sensor is located, marking the tunnel as a leakage tunnel, and determining a tunnel type of the leakage tunnel; hydrogen storage pressure of a high-pressure hydrogen storage tank of the hydrogen energy vehicle is obtained, and corresponding ventilation information is obtained in a preset database according to the tunnel type and the hydrogen storage pressure; and based on the obtained ventilation information, the leakage tunnel is controlled to conduct ventilation in the obtained ventilation mode, and the ventilation wind speed is controlled to be the basic wind speed till the hydrogen concentration is reduced to be below a preset safety threshold value. Hydrogen is effectively prevented from being accumulated on the tunnel vault to form explosive mixed cloud, the explosion risk is greatly reduced, and operation safety of the underground space is guaranteed.

The invention relates to the technical field of coal mine dust treatment, and particularly discloses an underground construction dust treatment device which comprises a bottom plate, a slope table is transversely arranged on the upper side of the bottom plate, two side shells are arranged at the two ends of the slope table in a sliding mode, two top shells are arranged between the two side shells, two fans are installed at the bottom of one top shell, and the other fan is installed at the bottom of the other top shell. The same ends of the two fans are fixedly connected with one connecting cavity; a movable seat is arranged in the connecting cavity, two filter screen cylinders are symmetrically arranged on the movable seat, the two filter screen cylinders are coaxially aligned with the two draught fans respectively, an air outlet is formed in the middle of the side, away from the two draught fans, of the connecting cavity, a ventilation pipe fitting is arranged at the air outlet in a matched mode, and a control mechanism used for controlling the ventilation pipe fitting is installed at the bottom of the connecting cavity. According to the device, the ventilation pipeline body can be efficiently installed, the working efficiency is high, and the influence on underground production is effectively reduced.

The present invention relates to a method for controlling a ventilation system (2), wherein the ventilation system (2) comprises an inlet (4) for receiving inlet air (5), a conditioning section (9) for conditioning the received inlet air (5), an outlet (6) for discharging outlet air (7), and a control device (8). The method comprises the following steps: defining a setpoint window for at least one air parameter of the outlet air (7), preferably by the control device (8); and controlling the conditioning of the inlet air (5) in the conditioning section (9) based on the setpoint window by the control device (8). Furthermore, the present invention relates to a corresponding ventilation system (2) and a system (1) with such a ventilation system (2).

The invention discloses a density self-adaptive intelligent ventilation control system and a control method thereof, and relates to the technical field of ventilation and air conditioning. The system comprises a gas monitoring module, a control decision module, an execution adjustment module and a visual interaction module, wherein the gas monitoring module is used for detecting gas density data in a target environment in real time; the control decision module is in communication connection with the gas monitoring module and is used for judging a predefined interval to which the gas density data belongs based on the gas density data and generating a corresponding ventilation control instruction according to the interval; the execution adjustment module is in communication connection with the control decision module and used for controlling ventilation equipment to operate according to the ventilation control instruction; and the visual interaction module is in communication connection with the gas monitoring module and the control decision module, and is used for displaying the system state and supporting manual intervention. Through density self-adaptive intelligent control, precision and dynamic optimization of a ventilation strategy are realized, and the ventilation efficiency, the environmental stability and the energy utilization efficiency are effectively improved.

The utility model relates to a storage cabinet, in particular to a storage cabinet, and aims to solve the problem that an existing storage cabinet for miners is prone to fire. In order to achieve the purpose, the storage cabinet comprises a cabinet body, a cabinet door and a cabinet door, a door body; a door body detection member; the ventilation assembly is communicated with the inside and the outside of the cabinet body and can drive air inside the cabinet body to circulate with air outside the cabinet body; the fire extinguishing assembly is used for extinguishing fire in the cabinet body; and the door body detection piece, the ventilation assembly and the fire extinguishing assembly are electrically connected to the control module so as to control the opening and closing state of the ventilation assembly and the opening and closing state of the fire extinguishing assembly. The door body detection piece can detect the state of the door body, when the door body is closed, the ventilation assembly can conduct ventilation, accumulation of moisture and peculiar smell is effectively reduced, mildew and bacterium breeding are prevented, the dust concentration in the cabinet body can be reduced, and therefore the fire risk is reduced. When a fire breaks out in the cabinet body, the fire extinguishing assembly can extinguish flames in the cabinet body, and losses caused by the fire are reduced.

The utility model discloses a device for improving the dryness of mildew-proof fabric, and relates to the technical field of fabric processing, the device comprises a base, a drying shell is arranged at the upper end of the base, both sides of the drying shell are provided with through holes, the upper end of the drying shell is provided with a sliding chute, both ends of the sliding chute are provided with drying assemblies in a sliding manner, and the drying assemblies are arranged on the base. A plurality of sets of ventilation openings are formed in the outer side of the drying shell, and an adjustable ventilation assembly is movably installed in each ventilation opening. The motor drives the first adjusting plate and the second adjusting plate to rotate, the inclination angle of the first adjusting plate and the second adjusting plate can be flexibly changed, and therefore the opening degree of the ventilation opening is accurately controlled, a user can adjust the ventilation quantity according to actual requirements, and the optimal air circulation effect is ensured; the ventilation assembly can be adjusted in a larger range, the ventilation path is further optimized, the growth condition of mould is effectively inhibited by rapidly discharging moisture and keeping the environment dry, and the risk of mould breeding is reduced.

The invention provides a pneumatic control air guide device for a coal mine coal face. The pneumatic control air guide device comprises a fixed base; the longitudinal lifting module is arranged on the fixed base; the longitudinal lifting module is rotationally connected with the fixed base; the angle adjusting module is connected with one end, far away from the fixed base, of the longitudinal lifting module; the transverse telescopic module extends along the top surface of the angle adjusting module; and an air guide curtain is hung between the fixed end and the movable end of the transverse telescopic module. By arranging the longitudinal lifting module, the transverse telescopic module and the angle adjusting module, multi-degree-of-freedom flexible adjustment of the air guide device in height, length and pitching angle is achieved, so that the device can quickly adapt to ventilation requirement changes in the advancing process of different mining heights, different roadway sections and a coal face; and the accuracy and adaptability of the air guide effect are ensured.

This invention relates to the field of high-frequency ventilator technology and discloses a high-frequency ventilator operating method based on flow control. The high-frequency ventilator sequentially outputs multiple average airway flow rates of the same or different magnitudes and with the same or different durations according to a set periodic pattern. The airway flow rate output is stable during the expiratory and inspiratory phases, and the average airway flow rate can be output at the same or different magnitudes during different inspiratory and expiratory phases. The output gas flow rate of the high-frequency ventilator can be independently adjusted periodically between different ventilation flow rate levels within different durations. In high-frequency ventilation, the flow control-based high-frequency ventilation method can precisely control the gas flow rate and time. Flow control ventilation can better control changes in airway pressure. By setting appropriate flow rates and times, the delivery volume of the device can be accurately estimated to reduce airway pressure and risks, and lower the possibility of barotrauma.

The utility model discloses a self -cleaning formula air circulation ventilation device of veterinary drug clean workshop, specifically related to veterinary drug clean workshop ventilation technical field. Self -cleaning formula air circulation ventilation device of veterinary drug clean workshop described in the utility model, including rectangular frame rectangular frame, louver, ventilation mechanism, electrostatic precipitation mechanism, ash removal mechanism and dust collecting component, the front and rear two ends of rectangular frame outer wall are fixedly connected with fixed frame board respectively, the outer wall of louver is fixedly connected in the front side of rectangular frame inner wall respectively, the outside of ash removal mechanism is set in the top of rectangular frame and is close to the back side of ventilation mechanism. The utility model discloses a work through the control ventilation mechanism, utilizes high -speed airflow to inhale the dust such as impurity in the workshop through louver into rectangular frame, then utilizes high -voltage electric field to make gas ionization again, thereby makes dust particle electrification and is adsorbed by electrode dust removal, promotes workshop air circulation ventilation.

The utility model discloses a box-type power distribution room, which belongs to the technical field of box-type power distribution rooms, solves the problem that the ventilation structure of the existing box-type power distribution room is not convenient enough, and comprises door frames symmetrically arranged on the box-type power distribution room, a window is arranged on one side of the box-type power distribution room, and a shutter main body is arranged on the other side of the box-type power distribution room. A ventilation assembly is arranged in the box-type power distribution room, a protection assembly located on one side of the ventilation assembly is arranged in the box-type power distribution room, moving mechanisms used for controlling the ventilation assembly and the protection assembly to move are symmetrically installed in the box-type power distribution room, and a first movable block is controlled to slide in a first movable shell by installing the moving mechanisms and starting a first lead screw; and a second lead screw controls a second movable block to slide in a second movable shell, a protection assembly is made to be close to the shutter main body or the ventilation assembly, and sealing protection is conducted on the shutter main body or shielding protection is conducted on the ventilation assembly.

The utility model relates to the technical field of shutters, and discloses a high-density ventilation PVC shutter which comprises a frame, angle adjusting assemblies are arranged on the inner sides of the two ends of the frame, driving assemblies are arranged on the inner sides of the ends of the frame, limiting assemblies are arranged on the inner sides of the two ends of the frame, and two installation assemblies are arranged on the outer sides of the two ends of the frame. The angle adjusting assembly comprises a connecting frame, the connecting frame is rotationally connected to the inner side of the end of the frame, a plurality of second connecting rods are fixedly connected to the inner side of the connecting frame, and first connecting blocks are fixedly connected to the ends of the second connecting rods. According to the utility model, the rotating wheel is controlled to drive the semicircular block, the connecting rod I, the connecting block II and the connecting frame to rotate, so that the blade angle can be flexibly adjusted. In this way, a user can accurately control the ventilation quantity and the ventilation direction according to actual requirements, and the ventilation requirements in different scenes are met.

The utility model relates to the technical field of greenhouses, and particularly discloses a greenhouse ventilation system which comprises a ventilation pipeline, a ventilation control mechanism and an air supply mechanism. The ventilation pipeline comprises an input pipeline and an output pipeline, one section of the input pipeline is buried in the greenhouse ground, the other section of the input pipeline is located on the side wall of the greenhouse, a plurality of first ventilation openings are formed in the pipe wall of the input pipeline, one section of the output pipeline is arranged at the top end of the greenhouse, and the other section of the output pipeline is located on the side wall of the greenhouse. A plurality of second ventilation openings are formed in the pipe wall of the output pipeline; the ventilation control mechanism is connected with the outer wall of the input pipeline and the outer wall of the output pipeline and used for controlling the communication state of the first ventilation opening and the second ventilation opening. The air supply mechanism communicates with the ventilation pipeline and is used for controlling air flow in the ventilation pipeline. The ventilation device has the effect of reducing energy consumption in the ventilation process of the greenhouse.

The invention provides a device for preventing disordered diffusion of smell in public health compartments, and relates to the technical field of building decoration engineering. The device comprises a smell collecting device which is arranged in a space above all compartments, and a closed collecting space is formed by a horizontal plane suspended ceiling and a vertical plane enclosure; the control device is arranged above each compartment, an exhaust module, a lighting module, a sensing module and a control module are integrated, and human body induction and odor concentration automatic detection control are achieved; the upper end of the ventilation vertical pipe is communicated with the odor collecting device, and the lower end is provided with a lower exhaust port for collecting odor at the lower part of the compartment; and the ventilation transverse pipe is connected with the odor collecting device and the existing exhaust passage. Traditional disordered smell diffusion is converted into organized directional collection and emission, the problem of smell pollution of the public washroom is solved through an upper-layer collection system, a lower-layer collection system and intelligent control, the smell is prevented from being diffused to adjacent places, and the air quality and the use comfort level are remarkably improved.

The application discloses a tunnel construction ventilation control method and system based on the Internet of Things, and relates to the technical field of intelligent control, and comprises the following steps: simulating tunnel ventilation to obtain a tunnel flow field diagram and an air flow area, calculating dust deposition velocities of each air flow area, sending a first control signal, performing a first operation, presetting a transition time point, and performing second control. The application dynamically adjusts ventilation parameters through real-time data, avoids poor ventilation effect or energy waste caused by fixed parameters in a traditional ventilation system, optimizes ventilation parameters, ensures that the dust concentration in the tunnel is always within a safe range, dynamically controls the ventilation system to quickly respond to changes in the construction process, guarantees construction safety, intelligently controls ventilation parameters, avoids unnecessary energy waste, flexibly adjusts ventilation parameters according to different tunnel construction conditions, and has strong adaptability and saves power.

The invention discloses a railway vehicle ventilation adjusting method based on an emergency inverter, which comprises the following steps: S1, starting the emergency inverter, and carrying out logic diagnosis on switch states by a low-temperature switch, a medium-temperature switch and a high-temperature switch according to a step-by-step closing mode; s2, a low-temperature switch, a medium-temperature switch and a high-temperature switch detect the environment temperature in real time; s3, the output frequency and voltage of the emergency inverter are automatically adjusted according to the environment temperature, the low-temperature switch, the medium-temperature switch and the high-temperature switch are switched on step by step when the environment temperature rises, and the high-temperature switch, the medium-temperature switch and the low-temperature switch are switched off step by step when the environment temperature drops. The emergency inverter controls the output and ventilation quantity of the ventilator according to the environment temperature change, and energy is saved as much as possible on the premise that the good ventilation effect is achieved. A railway vehicle ventilation adjusting system based on an emergency inverter comprises the emergency inverter, and the emergency inverter is connected with a low-temperature switch, a medium-temperature switch, a high-temperature switch and a ventilator. According to the railway vehicle ventilation adjusting method and system based on the emergency inverter, the temperature switch is associated with the emergency inverter, intelligent speed control over the emergency inverter can be achieved according to the environment temperature, automatic adjustment of the ventilation quantity is achieved, and irrationality and misoperation influences caused by manual speed adjustment are reduced.

The utility model relates to a kind of tunnel multi-working face control ventilation device, the fan outside the import of auxiliary gallery generates wind and is sent to four ventilation pipes by first ventilation air duct;The wind at four ventilation pipes is sent to the working face at both ends of first positive hole by third ventilation air duct fixed in the top of first positive hole;The wind at four ventilation pipes is sent to three ventilation pipes fixed in the top of second intersection by second ventilation air duct fixed in the top of horizontal channel;The wind at three ventilation pipes is sent to the working face at both ends of second positive hole by fourth ventilation air duct fixed in the top of second positive hole, it can be realized by a fan Multiple working face ventilation, it needs less fan equipment and different working face ventilation route part general, so that the overall ventilation line is shortened, and then reduce cost.Can use controller to control the opening and closing degree of corresponding butterfly valve by relay, meet the demand of different process air supply of tunnel, can reduce energy consumption, improve economic efficiency.

The utility model belongs to the technical field of agricultural machinery, and discloses a novel ventilating window of a sunlight greenhouse. Comprising a driving motor, spur racks, transmission shafts, sleeves and a window frame. The driving motor is connected with the gear box, and a gear in the gear box is meshed with the spur rack which is connected with the transmission shaft. The transmission shaft is fixedly connected with one ends of a plurality of sleeves respectively; the other end of the sleeve is fixedly connected with the window frame. Through sleeve combination, the opening and closing degree of the ventilation window is accurately controlled, the environment stability of the greenhouse is improved, the ventilation quantity is accurately controlled, the influence on thermal expansion and cold contraction of a greenhouse structure and equipment is reduced, and the service life of the greenhouse is prolonged. The opening and closing area of the ventilation window can be adjusted, the ventilation speed can be flexibly adjusted according to different weather conditions and crop requirements, and the ventilation speed is increased or delayed.