64results about "Ventillation gasproof devices" patented technology

Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space.

Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space.

An emergency elevator includes a door frame installed on upper, left and right sides of an entrance of an elevator platform, an elevator car configured to vertically move along an elevator passage and provided with a pair of elevator doors, a pair of platform doors installed in the door frame, a lower frame installed on a lower side of the entrance of the elevator platform and configured to slidably support the platform doors, an upper door rim installed on an upper side of the platform doors, a side door rim vertically installed at a lateral end of the platform doors, an oxygen supply device configured to supply oxygen to a patient in the elevator car, an emergency ventilation device configured to supply a purified air into the elevator car, and a filter device provided in the blowing duct so as to remove harmful substances introduced into the elevator car.

An air revitalization apparatus and method simultaneously removes carbon dioxide, water vapor, and heat from air and produces oxygen gas, hydrogen gas, and concentrated carbon dioxide gas, does not require an explosion proof enclosure, and includes a fan configured to blow air into a first gas-liquid contactor, an electrochemical cell including first through fourth passages configured to emit hydrogen gas, permit a flow of a carbonate-hydroxide solution, permit a flow of carbonate-bicarbonate solution, and emit oxygen gas, respectively, the first and fourth passages separated by at least three gas-impermeable membranes, and a second gas-liquid contactor, where the first gas-liquid contactor, second passage, and a first pump are configured to circulate the carbonate-hydroxide solution therethrough, where the second gas-liquid contactor, third passage, and a second pump are configured to circulate the carbonate-bicarbonate solution therethrough, and where the output of the first passage is operationally coupled to the second gas-liquid contactor.

A protection cell having an upper wall and a lower wall spaced with respect to each other through a plurality of side walls integrally connected to each other, to form an open box-like container with an entrance opening. The container defines inside a shelter space arranged to accommodate a user. In particular, the container is produced as a single block that reproduces the open box-like container. The anti-seismic cell has a movable wall portion mounted slidingly on the box-like container, by means of a sliding cooperating element, in particular a plane sliding board that slidingly engages between at least two slide paths, which are arranged at opposite sides with respect to each other. The plane sliding boards allows movable wall portion to move from an open configuration to a closed configuration, where the movable wall portion blocks the opening defining the protection cell.

The present invention relates a refuge used in underground mines, and more particularly to a type of isolated refuge cabin used in underground mines, including the supporting airbag (1), the body shell (2) equipped outside the supporting air bag (1), a breathable air supplier (4) and an air inflation device (3); the air outlet (5) of the air inflation device (3) is linked with an air outlet (7) of the supporting air bag (1) through an air supply passage(6); the air inlet (8) of the breathable air supplier (4) is connected to the interior cavity of the body shell (2) through an air intake passage (9); the air outlet (10) of the breathable air supplier (4) is linked with the lower part of the interior cavity of the body shell (2) through the air outlet passage(11); the breathable air supplier (4) includes a shell (12), the oxygen generating agent (13) equipped inside the shell (12); the emergency exit (14) is installed on the body shell (2). The present invention provides an isolated refuge cabin of a simple structure, which can be operated safely and easily to effectively separate the exterior environment of the mining accident areas and provide conditions for survival for human beings involved in the mine accidents.

An air revitalization apparatus and method simultaneously removes carbon dioxide, water vapor, and heat from air and produces oxygen gas, hydrogen gas, and concentrated carbon dioxide gas, does not require an explosion proof enclosure, and includes a fan configured to blow air into a first gas-liquid contactor, an electrochemical cell including first through fourth passages configured to emit hydrogen gas, permit a flow of a carbonate-hydroxide solution, permit a flow of carbonate-bicarbonate solution, and emit oxygen gas, respectively, the first and fourth passages separated by at least three gas-impermeable membranes, and a second gas-liquid contactor, where the first gas-liquid contactor, second passage, and a first pump are configured to circulate the carbonate-hydroxide solution therethrough, where the second gas-liquid contactor, third passage, and a second pump are configured to circulate the carbonate-bicarbonate solution therethrough, and where the output of the first passage is operationally coupled to the second gas-liquid contactor.

The invention relates to a civil defense basement which comprises a basement body. An entrance is formed in the basement body. A civil defense door is arranged on the inner side wall of the basement body in a sliding manner, and a driving mechanism driving the civil defense door to move is arranged on the basement body. The driving mechanism comprises a first chain wheel, a drive motor, a second chain wheel and a locking assembly. The first chain wheel is rotationally arranged on the basement body, and the drive motor is arranged on the basement body. The second chain wheel is arranged on an output shaft of the drive motor and is connected with the first chain wheel through a chain. The civil defense door is connected with the chain, and the locking assembly is arranged on the basement body and is used for fixing the chain. By means of the civil defense basement, the drive motor is started to drive the civil defense door to move to be opened or closed, after moving is completed, the locking assembly is closed to fix the position of the civil defense door, the civil defense door does not need to be rotated manually, and time and labor are saved when the civil defense door is openedor closed.

A breathable air safety system and method having an air storage sub-system is disclosed. In one embodiment, a safety system of a structure includes a supply unit of a building structure to facilitate delivery of breathable air from a source of compressed air to an air distribution system of the building structure, a distribution structure that is compatible with use with compressed air that facilitates dissemination of the breathable air of the source of compressed air to multiple locations of the building structure, and an air storage sub-system to provide an additional supply of air to the building structure in addition to the source of compressed air.

The invention discloses an air-lock structure for civil air defense engineering safety. The air-lock structure for civil air defense engineering safety comprises a passage body and an exhaust mechanism arranged at a top plate of the passage body and used for pumping and exhausting poison gas; and the exhaust mechanism comprises a gas suction mechanism and a lifting mechanism which is connected with the gas suction mechanism and drives the gas suction mechanism to ascend and descend. According to the gas defense passage structure, by arranging the lifting mechanism comprising connecting rods, the two-way lead screw, moving blocks, a worm wheel, a worm, a telescopic rod, a full-width gear, a first half-width gear, a second half-width gear, a second transmission shaft and a reduction gearbox, periodic up-down movement of the gas suction mechanism is achieved, the quantity of driving mechanisms and control mechanisms is decreased, periodic pumping and exhausting of poison gas at different heights in the passage body are achieved, and a good poison gas pumping and exhausting effect is achieved.

A chemical protective shelter system for encapsulating an uncontaminated person or persons is presented. The chemical protective shelter system has a cover assembly extending a length between a top end and a bottom end and having interior surface and an exterior surface and an opening which can be opened and closed repeatedly while still sealing. The chemical protective shelter system includes a layer of a chemical adsorbent material capable of filtering chemical agents while allowing oxygen and carbon dioxide to pass through the material. The chemical protective shelter is specially adapted to house a plurality of people and facilitate a tent like function. The system also includes a port for auxiliary filtered air. The system may also include a powered air purifying respirator which positively pressures the interior space of the system.

An apparatus for controlling a level of oxygen in a closed environment from an oxygen supply having an oxygen sensor for detecting the level of oxygen in the closed environment. The apparatus has a plurality of relays in communication with the sensor. The apparatus has a valve in communication with the relays and the oxygen supply which is automatically opened with the relays without human interaction, monitoring and adjustment to release oxygen from the oxygen supply into the environment when the level of oxygen in the environment goes below a first predetermined level and which is automatically closed with the relays without human interaction, monitoring and adjustment to stop oxygen from being released from the oxygen supply into the environment when the level of oxygen in the environment goes above a second predetermined level. A method for controlling a level of oxygen in a closed environment from an oxygen supply. A refuge chamber.

A pathogen protection device includes an enclosure made of air-tight material configured to seal a user's head from the outside and allow the user to see through; and a filter is disposed on a wall of the enclosure to allow filtered air to enter and exit the enclosure.

To realize stable and efficient operational control of water optimizing with high speed to minimize the timewise fluctuation of a water supply amount and the power consumption of a pump. A group of variables comprising an operational flow rate per unit time of the day and the time to set the flow rate based on a predicted demand amount and a process measured value is made a gene, and an optimum operation plan is computed according to genetic algorithm handled as such a string of genes of variable length that the group of variables exists only when the operational flow rate and the time to set the flow rate are changed.

The present invention relates to a measuring system for crank shaft deflection in a marine engine. The measuring system for crank shaft deflection in accordance with the present invention is characterized by comprising a deflection measuring device and a dedicated display device, and by transmitting the deflection value measured by a linear encoder module to a dedicated display device through wireless communications. The present invention is advantageous in that an operator can measure the deflection of a crank shaft quickly and conveniently since the deflection value measured by a digital sensor is transmitted in real time to a dedicated display device through wireless communications.

The present invention relates to a fire evacuation room that provides a space installed indoors in a high-rise building such as an apartment block so as to provide a person who is unable to escape outside with a space in which to safely take refuge. The present invention can be installed indoors in an apartment or in a basement of a building as desired so as to enable a person unable to evacuate outside the building to safely evacuate, wherein a predetermined pressure differential can be constantly produced by suitably controlling the amount of air entering the evacuation space and the amountof air leaving the evacuation space, thereby compensating for the occurrence of leaks inside the evacuation space by damage due to falling objects and the like, and thus a fire evacuation room can beprovided that completely mitigates a shortage of air for breathing. Furthermore, the present invention can provide a fire evacuation room that can improve the overall efficiency of the system for airprovision by unified operation of the air supply for each fire evacuation room installed on each storey of a building by connecting the various air inlet pipes to pipes of the ventilation system of the building or to separate pipes of the blower equipment inside the building. In addition, an air forced discharge fan which is installed in the interior wall surface inside the evacuation space is linked in operation to opening and closing of a door so as to actuate the air forced discharge fan, so as to be able to forcibly discharge air inside the evacuation space when the door is open and consequently, the fire evacuation space is able to block the entry of smoke or heat to the inside from the outside. In addition, the present invention provides a fire evacuation room wherein a branch pipe is formed on one side of an air intake pipe through which air flows into the inside of the evacuation room main body, and a filter device capable of purifying toxic gas such as smoke, in addition to oxygen generation apparatus that generates oxygen, is installed on the branch pipe so as to block the entry of external toxic gas while simultaneously supplying air to the inside of the evacuation roommain body for evacuees to breathe, or by operating an air storage tank by utilizing the frame space of the main body of the evacuation room, so as to implement a new system that supplies air into theinside of the evacuation room main body for evacuees to breathe, thereby completely eliminating such problems as toxic gas flowing inside the fire evacuation room and protecting the safety of evacueesto the maximum.

The invention provides an emergent escape system applied to civil air defense engineering, and belongs to the field of smoke discharging devices. The emergent escape system applied to civil air defense engineering comprises a civil air defense chamber, a water storage chamber, a motor chamber and a waste water recycling chamber; the motor chamber is arranged on the top face of the civil air defense chamber and internally provided with a motor and a rotary shaft; a driven wheel is installed at the upper end of the rotary shaft; a drive wheel is installed on an output shaft of the motor; a beltis connected between the drive wheel and the driven wheel; the lower end of the rotary shaft is connected with a spraying pipe; the spraying pipe is connected with a mist sprayer and a fan blade; a civil air defense door, a sound control lamp and a water curtain board are sequentially arranged on the inner wall of the right side of the civil air defense chamber from bottom to top; a second water pump is arranged inside the waste water recycling chamber and connected with a circulating water pipe; and the circulating water pipe extends into the water storage chamber; and a smoke transducer anda smoke displayer are electrically connected. The problem that an existing emergent escape system applied to civil air defense engineering is low in escape efficiency in the actual use process is solved.

The invention belongs to the field of ventilation equipment, in particular to civil air defense project ventilation equipment convenient to install. Aiming at the problems that when ventilation is carried out on civil air defense projects in the prior art, the installation of ventilation equipment is troublesome, the ventilation equipment is easy to damage at the ground bottom, and the ventilationequipment is inconvenient to maintain, the following scheme is provided: the ventilation equipment comprises a ventilation duct, the ventilation duct is internally connected with a positioning ring in a sliding mode, a fixed rod is fixedly mounted on the inner wall of the positioning ring, a motor is fixedly mounted on one side of the fixed rod, a first rotating rod is fixedly mounted on an output shaft of the motor, a fan blade is fixedly mounted at one end of the first rotating rod, a positioning seat is fixedly mounted on the inner wall of the top of the positioning ring, a second rotatingrod is rotationally connected to the positioning seat, and the second rotating rod is in transmission connection with the first rotating rod. The ventilation equipment is simple in structure, convenient to use, capable of ventilating the civil air defense projects, capable of being quickly disassembled and assembled, and convenient to maintain of people.

The present invention relates to a fire evacuation room that provides a space installed indoors in a high-rise building such as an apartment block so as to provide a person who is unable to escape outside with a space in which to safely take refuge. The present invention can be installed indoors in an apartment or in a basement of a building as desired so as to enable a person unable to evacuate outside the building to safely evacuate, wherein a predetermined pressure differential can be constantly produced by suitably controlling the amount of air entering the evacuation space and the amount of air leaving the evacuation space, thereby compensating for the occurrence of leaks inside the evacuation space by damage due to falling objects and the like, and thus a fire evacuation room can be provided that completely mitigates a shortage of air for breathing. Furthermore, the present invention can provide a fire evacuation room that can improve the overall efficiency of the system for air provision by unified operation of the air supply for each fire evacuation room installed on each story of a building by connecting the various air intake pipes to pipes of the ventilation system of the building or to separate pipes of the blower equipment inside the building. In addition, an air forced discharge fan which is installed in the interior wall surface inside the evacuation space is linked in operation to opening and closing of a door so as to actuate the air forced discharge fan, so as to be able to forcibly discharge air inside the evacuation space when the door is open and consequently, the evacuation space is able to block the entry of smoke or heat to the inside from the outside. In addition, the present invention provides a fire evacuation room wherein a branch pipe is formed on one side of an air intake pipe through which air flows into the inside of the evacuation room main body, and a filter device capable of purifying toxic gas such as smoke, in addition to oxygen generator that generates oxygen, is installed on the branch pipe so as to block the entry of external toxic gas while simultaneously supplying air to the inside of the evacuation room main body for evacuees to breathe, or by operating an air storage tank by utilizing the frame space of the evacuation room main body, so as to implement a new system that supplies air into the inside of the evacuation room main body for evacuees to breathe, thereby completely eliminating such problems as toxic gas flowing inside the fire evacuation room and protecting the safety of evacuees to the maximum.

A near ceiling mounted NBC filtration system of collective protection shelters comprising a filter unit, a blower, and an air exchange backup unit [20] (FIG. 5). The air exchange backup unit [20] comprising: a plurality of hinged segments [22a, b, c] serially linked to each other to form a foldable arm. The hinged segments [22a, b, c] are configured for transmission of rotational motion between each other. At least one of the hinged segments comprises at least one stage of a first speed increasing transmission. A first end [24] of the air exchange backup unit is swiveably attached to an electric motor [42] driving a blower [40]. And a second end [26] of the air exchange backup unit carries a detachable hand crank [28]. Manual rotation of the hand crank [28] rotates a shaft of the electric motor [42] at substantially a rated speed of the electric motor. The second end [26] of the air exchange backup unit is firmly attachable to a wall of the protection shelter at a convenient position for manual cranking of the hand crank [28]. The air exchange backup unit [20] is selectively folded up at normal times.

The present invention relates a refuge used in underground mines, and more particularly to a type of isolated refuge cabin used in underground mines, including the supporting airbag (1), the body shell (2) equipped outside the supporting air bag (1), a breathable air supplier (4) and an air inflation device (3); the air outlet (5) of the air inflation device (3) is linked with an air outlet (7) of the supporting air bag (1) through an air supply passage (6); the air inlet (8) of the breathable air supplier (4) is connected to the interior cavity of the body shell (2) through an air intake passage (9); the air outlet (10) of the breathable air supplier (4) is linked with the lower part of the interior cavity of the body shell (2) through the air outlet passage (11); the breathable air supplier (4) includes a shell (12), the oxygen generating agent (13) equipped inside the shell (12); the emergency exit (14) is installed on the body shell (2). The present invention provides an isolated refuge cabin of a simple structure, which can be operated safely and easily to effectively separate the exterior environment of the mining accident areas and provide conditions for survival for human beings involved in the mine accidents.

The invention relates to a remote intelligent control system for civil defense engineering, relates to the technical field of the civil defense engineering, and aims to solve the technical problems that when an air shaft structure of the civil defense engineering is often provided with filed control valves and a ventilating device, and the control valves and control ends are dispersed everywhere,remote control is not facilitated. The remote intelligent control system comprises a temporary energy-storage device, a ventilating device, an operation control device and a central control device, wherein the temporary energy-storage device is used for persistently supplying power to the whole control system; the operation control device is connected with the central control device so as to receive a remote control instruction of the central control device; the ventilating device comprises an air inlet fan, an exhaust fan, a plurality of air inlet valves and a plurality of exhaust valves; andthe air inlet fan, the exhaust fan, the air inlet valves and the exhaust valves are electrically connected with the operation control device to execute the remote control instruction. The remote intelligent control system has the effect that remote intelligent control over the civil defense engineering is facilitated.

A protection cell having an upper wall and a lower wall spaced with respect to each other through a plurality of side walls integrally connected to each other, to form an open box-like container with an entrance opening. The container defines inside a shelter space arranged to accommodate a user. In particular, the container is produced as a single block that reproduces the open box-like container. The anti-seismic cell has a movable wall portion mounted slidingly on the box-like container, by means of a sliding cooperating element, in particular a plane sliding board that slidingly engages between at least two slide paths, which are arranged at opposite sides with respect to each other. The plane sliding boards allows movable wall portion to move from an open configuration to a closed configuration, where the movable wall portion blocks the opening defining the protection cell.

A floor-space saving NBC filtration system for collective protection shelters with NBC filter unit and means for changing the NBC filtration system state between a ventilation mode, effective during normal times or conventional hazard, and a NBC protection mode, effective during NBC hazard. The NBC filtration system is contained in a space out of a comfortable reach of the shelter occupants thus saving usable floor-space. The means for changing the NBC filtration system state is operated from a location within the comfortable reach of the shelter occupants. The NBC filter unit inlet and outlet are located at close proximity to each other, a pre-filter outlet is located in proximity to the NBC filter unit inlet and outlet with a changeover valve, serving as means for changing the NBC filtration system state, located there between. Resulting in simple operation and space saving by the changeover valve replacing prior art space consuming flexible pipes.

The invention relates to the technical field of civil air defense projects, and discloses a ventilating and filtering device for a civil air defense project. The ventilating and filtering device comprises a ventilation opening, wherein the right side of the ventilation opening is fixedly connected with an air outlet pipe, a detection box is fixedly installed at the middle position of the air outlet pipe, and the tail end of the right side of the air outlet pipe is fixedly connected with dispersion pipes; and the tail ends of the right sides of the dispersion pipes are fixedly connected with a mounting block, the middle position of the right side surface of the mounting block is fixedly connected with an air inlet pipe, and filtering pipes are fixedly connected to the positions, located on the outer sides of the air inlet pipe, of the right side surface of the mounting block. The mounting block is installed on a wall body of the civil air defense project, one side face of the ventilation opening faces the interior of the civil air defense project, in a normal state, illuminating lamps directly irradiate photoresistors, the resistance value of the photoresistors is increased, a driving wheel is powered off, meanwhile, smog does not exist in an optical maze, rays of infrared emitters are not refracted, and the air is exchanged with outside air through the ventilation opening, the air outlet pipe, a connecting pipe, the filtering pipes and the air inlet pipe at the moment.

The invention belongs to the field of ventilation equipment, in particular to an easy-to-install ventilation equipment for civil air defense projects, aiming at the troublesome installation of the existing ventilation equipment when ventilating civil air defense projects, and it is generally located underground, which is prone to damage and is inconvenient For the problem of maintenance, the following scheme is proposed, which includes an air duct, a positioning ring is slidably connected in the air duct, a fixing rod is fixedly installed on the inner wall of the positioning ring, a motor is fixedly installed on one side of the fixing rod, and a motor is fixedly installed on the output shaft of the motor. A first rotating rod is fixedly installed, one end of the first rotating rod is fixedly installed with a fan blade, a positioning seat is fixedly installed on the top inner wall of the positioning ring, and a second rotating rod is rotatably connected to the positioning seat, and the second rotating rod is connected to the The first rotary rod transmission connection. The invention has the advantages of simple structure and convenient use, can ventilate civil air defense projects, and can also quickly disassemble and assemble the ventilating equipment, which is convenient for people to maintain.

This application relates to a civil air defense basement, which includes a basement body, an entrance is opened on the basement body, a manned air defense door is slid on the inner side wall of the basement body, and a driving mechanism for driving the air defense door to move is arranged on the basement body, the driving mechanism includes a first chain Wheel, drive motor, second sprocket, locking assembly; the first sprocket is set on the basement body for rotation, the drive motor is set on the basement body, the second sprocket is set on the output shaft of the drive motor and connected with the first sprocket through the chain The sprocket is connected, the air defense door is connected with the chain, and the locking assembly is arranged on the basement body to fix the chain. This application drives the civil defense door to move by driving the motor to open or close the civil defense door. After the movement is completed, close the locking assembly to fix the position of the civil defense door, so there is no need to manually turn the civil defense door, which saves time when opening or closing the civil defense door save effort.

An apparatus for controlling a level of oxygen in a closed environment from an oxygen supply having an oxygen sensor for detecting the level of oxygen in the closed environment. The apparatus has a plurality of relays in communication with the sensor. The apparatus has a valve in communication with the relays and the oxygen supply which is automatically opened with the relays without human interaction, monitoring and adjustment to release oxygen from the oxygen supply into the environment when the level of oxygen in the environment goes below a first predetermined level and which is automatically closed with the relays without human interaction, monitoring and adjustment to stop oxygen from being released from the oxygen supply into the environment when the level of oxygen in the environment goes above a second predetermined level. A method for controlling a level of oxygen in a closed environment from an oxygen supply. A refuge chamber.

The invention relates to a civil air defense basement ventilation device, relates to the field of basements, and aims to solve the problem that the air quality of a basement is poor due to the fact that air in the basement only circulates with the outside through a civil air defense door. The civil air defense basement ventilation device comprises a wall body, and an air channel is formed in the wall body and communicates the air in the basement with the outside air; and an air filtering assembly and an air moisture removing assembly are arranged in the air channel. The civil air defense basement ventilation device has the effect of improving the air quality of the basement.

Many people die each year from smoke inhalation due to residential fires. An enclosed space that provides clean and breathable air to people can save many lives when there is a fire and people are unable to escape. The device can be placed in a small and easily accessible space in a dwelling. The device recirculates and purifies air so that people can breathe while they wait for emergency responders.