47 results about "Conventional ventilation" patented technology

The invention discloses a ventilation device, which aims to solve the problem that the conventional ventilation device does not have an air adjusting function. The device comprises a pedestal, a high-speed air blower and an annular ejector, wherein the high-speed air blower is arranged at the bottom of the pedestal; the annular ejector is arranged at an air outlet of the high-speed air blower and is fixed on the pedestal; and the air inlet or the air outlet of the high-speed air blower is provided with a vapor generator which is fixed on the pedestal for producing water vapor. In the ventilation device, the water vapor is produced through the vapor generator and is ejected through an atomization nozzle at a high speed to produce fog of smaller granularity, so that a hot air flow can more easily absorb the latent heat of vaporization, and the ventilation device has a humidification effect and a heat absorption and temperature reduction effect on a large amount of hot air sucked by the annular nozzle, and brings comfortable cool air similar to air on the shore of a lake or a sea to the surrounding environment. In the ventilation device, an external circulating device is not required to be mounted, so the cost is low; the space is not required to be closed, so that air convection is guaranteed; and the ventilation device is more energy-saving in the same temperature reduction range compared with a fan and an air conditioner, and can be used conveniently and safely.

A system and method of vent placement within a building is provided for improved passive ventilation. Vents are provided within the dividing structures or material layers that form the building's exterior and interior walls, ceiling, roof, floor, and/or intermediate story-defining “ceiling-floors.” Preferably, each vent is not a conventional ventilation stack and is oriented generally along a planar portion of the dividing structure within which the vent is positioned. Preferably, each vent is substantially entirely contained within its associated dividing structure. Vents are provided in corner sections of exterior walls, roof-portions, and the bottom floor of the building. Vents are also provided in corner sections of the ceiling portions, floor portions, and wall portions that define the interior rooms of the building. The vents are preferably vertically aligned throughout a substantial portion of the height (or more preferably substantially the entire height) of the building, at one or more horizontal positions thereof, to thereby produce one or more substantially vertical flows of air upward and out of the building, without the use of stack vents.

The invention discloses an adjustable ventilation device and a control system therefor. An air regulation apparatus is fixed on a floor support, and a ventilation floor is laid on a square frame. The square frame is provided with wind shield plates and movable wind shield plates, and ventilation gaps in a horizontal direction are respectively formed between the adjacent two wind shield plates. Inner sides, at which two ends of each wind shield plate are located, of two frames are respectively provided with a guide rail in a length direction. Two ends of each movable wind shield plate are respectively disposed on guide rails of the two frames in a sliding manner. The movable wind shield plates are respectively in fixed connection with the same connecting plate, and the width of each ventilation gap between two adjacent wind shield plates is less than or equal to the width of each movable wind shield plate. The lower side of a strip-shaped connecting plate is provided with racks in the length direction of the guide rail, and a gear is engaged with the racks. A torsional force steering engine drives the gear to rotate, so as to solve a problem that the effect of a convention air supply system is not ideal because a conventional ventilation floor structure is not reasonable and the ventilation cannot be changed easily. The invention belongs to the field of cabinet temperature control.

The invention relates to a frequency conversion ventilator, which comprises a medium-pressure anticorrosion fan with a frequency conversion motor and at least one ventilation cabinet, and is characterized in that: the ventilation cabinet is connected with the medium-pressure anticorrosion fan through a polypropylene reducing pipeline; an electric air valve is connected between the ventilation cabinet and the medium-pressure anticorrosion fan; the frequency conversion motor is connected with a frequency conversion control device; and one end of a frequency conversion and air valve control circuit is connected with the frequency conversion control device, while the other end is connected with the electric air valve through an air valve executing motor, and the frequency conversion and air valve control circuit is arranged in the ventilation cabinet. The frequency conversion ventilator has the advantages of meeting the requirements of modern laboratory ventilation systems, reducing energy loss of air conditioners and initial installation charge for users and enterprises, and having high-efficiency and energy-saving system operation. The frequency conversion ventilator only needs to add a small quantity of devices on the basis of conventional ventilation systems, and is not only suitable for initial installation users, but also suitable for transforming old systems.

The invention discloses a ventilation backwash filtering screen system and a cleaning method of the ventilation filtering screen, and aims to provide a ventilation backwash filtering screen system with low use cost so as to solve the problem that the conventional ventilation filtering screen needs to be maintained manually and frequently after dust accumulation. With the system, the frequency of cleaning and maintaining the ventilation filtering screen manually is greatly reduced. The ventilation backwash filtering screen system comprises a shell, a filtering screen installed on the shell, a motor, at least one rotation arm and hairbrush bars, wherein the motor is installed in the center of the filtering screen and the output shaft of the motor is perpendicular to the plane of the filtering screen; the at least one rotation arm is fixedly connected with the output shaft of the motor; the hairbrush bars are installed on the rotation arms; the brush surfaces of the hairbrush bars are in contact with the surface of the filtering screen, and the hairbrush bars extend outward from the middle of the filtering screen to the edge of the filtering screen. The ventilation backwash filtering screen system is simple in structure, is simple to use and maintain, and is low in cost; the ventilation backwash filtering screen system and the cleaning method of the ventilation filtering screen can be applied to various ventilation occasions, especially the occasions with high ventilation quality requirement.

The invention discloses an intelligent expressway tunnel ventilation device and an intelligent expressway tunnel ventilation method. The intelligent expressway tunnel ventilation device comprises a detection module, a forecasting module, a warning module and a control module, wherein the detection module comprises smoke VI, CO, particulate matter concentration and traffic flow TC detection elements; the forecasting module comprises a traffic flow forecasting module and a pollutant forecasting module; the warning module is a dynamic CO/VI warning module; the control module adopts an FLC (Fuzzy Logic Controller); the forecasting module is connected with the detection module; the warning module and the detection module are used as input ends; and the control module is connected with an output end and connected with a ventilation device in a tunnel. Compared with conventional ventilation device, an information fusion technology is fused in the intelligent expressway tunnel ventilation device, the ventilation device is adjusted by setting early warning parameters, calculating ventilation volume, distinguishing traffic state and controlling a decision module through a pollutant forecasting model, the tunnel can be subjected to ventilation control timely and effectively, and energy consumption can be reduced.

The invention discloses a 360-degree steering double-variable frequency speed control fan. The 360-degree steering double-variable frequency speed control fan consists of a fan cover, a fan base, a base shell, a base cover plate, fan blades, a hand tightening screw rod, a permanent magnetic direct-current brushless motor, a high-torque permanent magnetic direct-current motor, a PCB, a double-nuclear single-chip computer, a rotating ball column and a bearing. The 360-degree steering double-variable frequency speed control fan is characterized by being a double-motor driving structure; an air supply part is driven by the permanent magnetic direct-current brushless motor; a 360-degree head shaking steering part of the fan base is driven by the high-torque permanent magnetic direct-current motor; the double-motor control is realized by a circuit on the PCB; and the double-nuclear single-chip computer can control variable frequency speed control of the permanent magnetic direct-current brushless motor and the high-torque permanent magnetic direct-current motor side by side. The 360-degree steering double-variable frequency speed control fan serves as an indoor circulation variable frequency fan for use in four seasons, reaches the lowest power consumption of 3 watt, can be applied to the places of families, restaurants and cinemas, is preferably matched with an air conditioner or other heating equipment for use, and is an optimal updating product of a conventional ventilation fan or a ventilation fan.

The invention discloses an energy saving control system of a heating ventilation air conditioner. The energy saving control system comprises a central processing unit, an air conditioner working data setting module, a time setting module and a power module. The input end of the air conditioner working data setting module is connected with a data setting input module. The output end of the air conditioner working data setting module is electrically connected with the input end of the central processing unit. The monitoring end information input end of the central processing unit is electrically connected with a people number generation module and a sensing unit. The input end of the people number generation module is electrically connected with an infrared sensor. A control unit is arranged in the central processing unit. The output end of the control unit is electrically connected with an automatic mode, an adjusting mode and a standby mode. The output end of the control unit is electrically connected with a switch module. The power output end of the power module is electrically connected with the power input end of the central processing unit. The energy consumption of the heating ventilation air conditioner is reduced, intelligent control can be achieved, control over a conventional ventilation air conditioner is optimized, and a comfortable environment is provided for users.

The invention discloses a direct suction type active ventilation and temperature lowering device applicable to many-year permafrost embankment, and belongs to the field of many-year permafrost embankment maintenance. The direct suction type active ventilation and temperature lowering device comprises a ventilation pipe, an air suction fan, a hollow post, a wind chasing device and a wind energy conversion device, wherein the hollow post is fixed beside the embankment; the ventilation pipe is buried in the embankment; an air outlet is communicated with the air inlet end of the hollow post; the air energy conversion device and the wind chasing device are arranged on the top of the hollow post. The direct suction type active ventilation and temperature lowering device applicable to many-year permafrost embankment solves the problems of a conventional ventilation pipe embankment that the ventilation efficiency is low; the blockage failure can easily occur; the installation mode is single; the applicable range is narrow; the conventional ventilation pipe embankment cannot be used in many-year permafrost field wide-breadth embankment.

The invention discloses a ventilation device for mining, which comprises a first ventilation duct, the bottom of the first ventilation duct communicates with a second ventilation duct, a blower is fixedly connected to the right side of the first ventilation duct, and the inner wall of the blower is The top of the motor is fixedly connected with a motor, the output end of the motor is fixedly connected with a fan blade, the bottom of the motor is fixedly connected with a power regulator, and the left side of the second ventilation duct is fixedly connected with an oxygen concentration detector. The left side of the second ventilation duct and the bottom of the oxygen concentration detector are fixedly connected with a micro power supply, and the right side of the second ventilation duct is fixedly connected with an air compression box. Through the cooperation of the blower, oxygen concentration detector, air compression box, electric valve and manual knob, the present invention solves the problem that the traditional ventilation device cannot continue to provide oxygen for the underground workers after a mining accident occurs, causing most of the victims to die due to suffocation The problem.

The invention discloses an intelligent ventilation monitoring system based on a limited sensor and a monitoring method. The system comprises a blowing unit, an air conditioning unit and an air returnunit. The blowing unit is arranged in the middle of a side wall of a building and comprises a strip-type blowing port and a blowing pipeline arranged on one side of the blowing port; the air conditioning unit is arranged in a top area of the building; the air return unit is arranged at the bottom of the building and is close to the wall area and comprises a strip-type air return port and an air return pipeline formed in one side of the air return port; and the air conditioning unit is connected to the blowing unit and the air return unit separately to achieve indoor air circulation. The systemcan monitor data according to the limited sensor to predict global pollutant concentration distribution quickly, so that intelligent monitoring of the ventilation system is achieved finally, and therefore, problems that a conventional ventilation system cannot acquire the global environment parameters based on monitored data of the sensor to achieve accurate and rapid control and regulation and the like.

The invention provides a processing method for responding public building indoor burst air pollution. The processing method comprises the following steps: establishing a computational fluid kinetic model to simulate the dynamic concentration distribution of burst air pollution under conventional ventilation; dividing a computational region on a mock object; obtaining personnel dynamic distributionrule of the computational region through a multi-main body model software; computing air pollution accumulative exposure risk according to the dynamic concentration distribution and the personnel dynamic distribution; determining an optimal function model to obtain a ventilating key protection region; determining an air pollution concentration design threshold of the ventilating key protection region; reversely matching according to the optimal function model to obtain an emergency ventilating scheme; and checking the emergency ventilating scheme till to finally output the ventilating security region. The corresponding emergency ventilating scheme and an operation control measure are reversely matched through the air pollution concentration design threshold, thereby constructing the ventilating security region in the public building, and the security and the health of the public building indoor personnel can be maximally guaranteed in the burst air pollution.

The invention relates to a packaging tool, which solves the problem of poor ventilation performance of the conventional ventilation type package or the problem of good ventilation performance but poor appearance. The package tool comprises upper rods, lower rods and connecting rods, wherein the number of the upper rods is three or more, upper ends of the upper rods are connected in sequence; the upper end of the last upper rod is connected with the upper end of the first upper rod; the number of the lower rods is the same as that of the upper rods, and lower ends of the lower rods are connected in sequence; the lower end of the last lower rod is connected with the lower end of the first lower rod; the number of the connecting rods is one fewer than that of the upper rods, upper ends of the connecting rods are respectively arranged among the lower ends of the two upper rods which are connected in sequence and adjacent, and are connected with the lower ends of adjacent upper rods; and lower ends of the connecting rods are respectively arranged among upper ends of the two lower rods which are connected in sequence and adjacent, and are respectively connected with the upper ends of the adjacent lower rods. The packaging tool has excellent ventilation performance, can prolong the quality guarantee period of packaged articles, is particularly suitable for the package of meat products, and has nice appearance and convenient manufacture.

The invention discloses a mine ventilation monitoring system comprising an overground monitoring system and an underground sampling system. The overground monitoring system comprises two industrial control computers and a sound and light alarm system; and one industrial control computer is used for system monitoring, and the other industrial control computer is used for data backup. The underground sampling system comprises a PLC (programmable logic controller), a wind speed sampling module, an air pressure sampling module and a fan operation monitoring module, and can be expanded according to system requirements to monitor indicators of underground CO concentration, NO2 and the like. Communication between the overground monitoring system and the underground sampling system is performed by using RS485. Compared with the prior art, the mine ventilation monitoring system has functions of monitoring changes of air speed and air pressure force of the mine in real time, alarming on exceeding standard and the like; compared with a conventional ventilation monitoring system, the PLC device system has the advantages of low fault rate, high reliability, simple wiring, strong anti-interference capacity, convenience in maintenance and the like; and meanwhile, by the aid of the PLC technology, automation of the ventilation system is greatly improved, and labor force of staffs in working positions is reduced.

The invention relates to the technical field of noise reduction structures, and discloses a ventilation and heat dissipation noise reduction structure. The structure comprises a product acoustic hood,wherein multiple noise reduction units are arranged on the outer surface of the top of the product acoustic hood, mounting rods penetrating through the outer surfaces of the tops of the noise reduction units are arranged on the outer surfaces of the bottoms of the noise reduction units, a mounting plate is arranged on the outer surface of the outer side of the bottom of the product acoustic hood,multiple supporting plates are arranged on the outer surface of the top of the mounting plate and located on the outer surface of the outer side of the product acoustic hood, mounting holes are formed between every two adjacent supporting plates and located in the outer surface of the top of the mounting plate, multiple mounting openings are formed in the outer surface of the outer side of the product acoustic hood, and multiple positioning grooves are formed in the outer surfaces of the outer sides of the mounting rods and located in the outer surface of the top of the noise reduction units.The ventilation, heat dissipation and noise reduction structure is used for improving a noise reduction function of products such as a conventional ventilation acoustic hood, or other product heat dissipation windows, and meanwhile the comprehensive effect of cooling and noise reduction is achieved.

The invention belongs to the technical field of mining equipment, and particularly relates to a ventilation door for a ground main ventilator of a coal mine. The technical problem that a failure cannot be cleared without shutdown when a conventional ventilation door fails in a running process is mainly solved. According to the technical scheme, the ventilation door for the ground main ventilator of the coal mine comprises a roadway joint, a butterfly valve and a first air duct, as well as a side-opening ventilation door and a second air duct. The ventilation door has the advantages of capability of easily clearing the failure of the ventilation door without stopping blasting, simple structural design, rotating flexibility and high sealing performance.

The invention discloses a piston type active ventilation and temperature lowering device applicable to many-year permafrost embankment, and belongs to the field of many-year permafrost embankment maintenance. The piston type active ventilation and temperature lowering device comprises a ventilation pipe, an air suction tube device, a hollow post, a wind chasing device and a wind energy conversiondevice, wherein the hollow post is fixed beside the embankment; the ventilation pipe is buried in the embankment; an air outlet is communicated with the air inlet end of the hollow post; the air suction tube device is arranged in the hollow post, and is positioned between the air inlet end and the wind energy conversion device; the wind energy conversion device and the wind chasing device are arranged at the two sides of the upper section of the hollow post. The piston type active ventilation and temperature lowering device solves the problems of a conventional ventilation pipe embankment thatthe ventilation efficiency is low; the blockage failure can easily occur; the installation mode is single; the applicable range is narrow; the conventional ventilation pipe embankment cannot be usedin the many-year permafrost field wide-breadth embankment.

The invention relates to a nano water-based formaldehyde-sealing coating and a preparation method thereof. The nano water-based formaldehyde-sealing coating is prepared from the following components in percentage by weight: 2.0 to 10.0 percent of nano-crystalline cellulose, 0.5 to 3.0 percent of ultrafine micro wax powder and the balance of water-based epoxy resin, a water-based dispersing agent, a functional adjuvant, deionized water and a water-based epoxy curing agent. The nano water-based formaldehyde-sealing coating is excellent in tightness, adhesiveness and wear resistance; when the surface of furniture is coated with the nano water-based formaldehyde-sealing coating, a layer of protective sealing film can be formed on the surface of a furniture coating layer; the protective sealing film can firstly seal formaldehyde and prevent formaldehyde gas in furniture plates and coating layers from being volatilized; the preparation method is mild in condition, simple in process and more environmentally-friendly. The problems that the indoor formaldehyde content exceeds the standard content due to existing indoor decoration, time for removal of the formaldehyde via conventional ventilation and physical adsorption is long, and the sealing effect of the existing sealing coating on the formaldehyde is limited are solved.

The invention discloses an optimal circulation ratio calculation method of open controllable circulation ventilation of an extra-long highway tunnel. The method mainly includes: an energy-saving coefficient formula of the open controllable circulate ventilation system is determined, and then the first derivative and the second derivative of the cycle rate with respect to the energy saving coefficient are obtained according to the formula; according to the extreme value principle in higher mathematics, when the second derivative is less than 0 and the first derivative is equal to 0, the independent variable expression of the maximum value of dependent variable is obtained, and the optimal cycle ratio is obtained. Compared with a conventional ventilation system of air supply and exhaust shaft, the system of the invention has the advantages that the maximum energy saving of the open controllable circulating ventilation system can be obtained by using the circulating ratio, which is related to the equivalent coefficient of the frictional wind resistance coefficient of the circulating duct and the dust removal efficiency of the dust collector. The circulating ratio corresponding to themaximum energy saving coefficient of the dust removal efficiency and the equivalent coefficient of the dust collector can be calculated by using the formula.

The invention discloses a ventilation valve and a using method thereof, and relates to the technical field of waste gas treatment equipment. The ventilation valve comprises a valve plate, a main shaft, an air cylinder and a horizontal control mechanism, the horizontal control mechanism is additionally arranged in a conventional ventilation valve structure, the horizontal control mechanism comprises an acceleration sensor and a controller, the acceleration sensor is used for detecting the inclination angle and the inclination direction of the valve plate, the controller is used for receiving adetection signal from the acceleration sensor, controlling the air cylinder to stretch out and draw back and adjusting the angle of the valve plate. When the ventilation valve is in the closed state and the valve plate inclines, the valve plate is controlled to return, and the problem that in the prior art, when the ventilation valve is in the closed state, the valve plate is prone to inclining issolved.

The invention provides an anti-pirate safety cabin ventilation system which is characterized by comprising an emergency air inlet and an emergency air outlet which are located below a freeboard deck, and each emergency air inlet is provided with a first watertight door, a second watertight door and a water inlet leakage detector with a light alarm. A conventional air inlet duct, an emergency air inlet duct, a conventional air outlet duct and an emergency air outlet duct are arranged in the anti-pirate safety cabin, switching between the conventional air inlet duct and the emergency air inlet duct and switching between the conventional air outlet duct and the emergency air outlet duct are achieved through position changes of the fireproof watertight inner door. And after boarding of the pirate, the conventional ventilation system is closed and the emergency ventilation system is opened by switching the second watertight door, so that hidden ventilation between the pirate-preventing safe closed cabin and the external atmosphere is carried out. The position of the emergency ventilation opening is hidden, ventilation power can be provided to guarantee fresh air oxygen supply after pirate boarding and power losing, and life safety of personnel in the anti-pirate safe closed cabin can be effectively guaranteed for a long time.