40results about "Ventillation gasproof devices" patented technology

Disclosed are methods and a safety system implemented within a structure of automatic modification of a rate of filling an air bottle with breathable air in the safety system. In accordance therewith, an air fill charge rate controller device is coupled to the breathable air from a source thereof in the safety system having a fixed piping system installed within the structure for supply of the breathable air across the safety system. A flow rate of the breathable air from the source thereof is detected through a flow sensor associated with the air fill charge rate controller device. In accordance with the detection of the flow rate, a control unit of the air fill charge rate controller device automatically modifies a fill rate at which the air bottle is to be filled with the breathable air.

The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense filtering absorber with a ventilation conversion function, which comprises a shell, a cooling cavity is arranged in the shell, cooling water is stored in the cooling cavity, a water replenishing pipe is arranged on the outer side of the shell, and an air cooling mechanism is arranged in the shell. The air cooling mechanism comprises an air guiding pipe fixedly connected to the top end of the shell, a plurality of sets of cooling coiled pipes are arranged on the two sides of the cooling cavity, the bottom end of the shell is fixedly connected with a coolant storage box, the coolant storage box is communicated with the cooling coiled pipes, and a circulating pump is installed at the bottom end of the coolant storage box. The shell is matched with the air cooling mechanism, filtered clean air is guided into the snakelike passing pipe through the air guiding pipe, heat exchange is conducted between the snakelike passing pipe and cooling water in the cooling cavity, and therefore the heat exchange efficiency of the cooling water in the cooling cavity is guaranteed, and damage caused by high-temperature air is avoided.

Disclosed are methods and a safety system of a structure for an air / environmental parameter based automatic closing of a valve to isolate breathable air supplied to a level of the structure having the breathable air supplied thereto from a source. In accordance therewith, a parameter of an environment of the level of the structure and / or the breathable air supplied thereto is sensed using a sensor associated with one or more component(s) of the safety system. In response to the sensing, the one or more component(s) automatically closes the valve associated with control of the supply of the breathable air to the level to isolate the breathable air supplied to the level.

Disclosed are a method and systems of remote monitoring of a sensor integrated safety system of a structure through a mobile data processing device. In accordance therewith, the mobile data processing device executes a component of a computing platform for the sensor integration therethrough. The mobile data processing device executing the component of the computing platform monitors the safety system and / or one or more components of a number of components thereof remotely based on collecting a number of parameters of the number of components of the safety system and / or of access thereof through detection of the number of parameters via a set of sensors associated with the number of components of the safety system. The number of parameters includes one or more parameter(s) related to breathable air from a source within the safety system supplied thereacross via a fixed piping system implemented therein and / or access of the breathable air.

The present invention relates to a filtration system configured to protect one or more users located in an enclosed environment from chemical, biological, radiological, and nuclear (CBRN) threats observed outside the enclosed environment.

A raceway includes a horizontal sleeve element carrying a metallic coil tube therethrough below a ground level associated with a structure such that the horizontal sleeve element is directly embedded in a base layer under the ground level and immediately below a first layer of the ground level, and a curved elbow element directly connected to the horizontal sleeve element at each of both ends of the horizontal sleeve element to transition the metallic coil tube across perpendicular directions. The raceway establishes a pathway for an electrical and / or a breathable air connection between components of a safety system implemented within the structure based on seamlessly and jointlessly drawing the metallic coil tube out of the curved elbow element on the each of both the ends of the horizontal sleeve element. Components of the raceway create a fire rated enclosure for the metallic coil tube.

To prevent the interior of an internal space of a building from being destroyed when a smoke exhaust switch is operated.SOLUTION: A smoke evacuation system for evacuating smoke from an internal space of a building to an external space includes a smoke evacuation passage having one end connected to a smoke evacuation port provided in the internal space, a smoke evacuation device connected to the other end of the smoke evacuation passage, a passage switching section capable of switching between communication and shut-off between the external space and a smoke evacuation passage upstream portion that is a portion of the smoke evacuation passage on a smoke evacuation port side with respect to the smoke evacuation device, a smoke evacuation operation section that is manually operated to activate the smoke evacuation device, a fire detector that detects occurrence of fire in the internal space, and a control device that controls operations of the smoke evacuation device and the passage switching section. When detecting that the smoke exhaust operation section is operated, the control device activates the smoke exhaust device and controls the passage switching section so that the smoke exhaust passage upstream section communicates with the external space, and when the fire sensing section senses occurrence of a fire, the control device controls the passage switching section so that the smoke exhaust passage upstream section is shut off from the external space.SELECTED DRAWING: Figure 3

Disclosed are methods and a safety system implemented within a structure of automatic modification of a rate of filling an air bottle with breathable air in the safety system. In accordance therewith, an air fill charge rate controller device is coupled to the breathable air from a source thereof in the safety system having a fixed piping system installed within the structure for supply of the breathable air across the safety system. A flow rate of the breathable air from the source thereof is detected through a flow sensor associated with the air fill charge rate controller device. In accordance with the detection of the flow rate, a control unit of the air fill charge rate controller device automatically modifies a fill rate at which the air bottle is to be filled with the breathable air.

Disclosed are a method and systems of a backup power unit to supply electrical power to operational elements of component(s) of a safety system of a structure having a fixed piping system implemented therein to supply breathable air from a source to the component(s). In accordance therewith, a computing platform executing on a data processing device is integrated with a set of sensors associated with the component(s) and a backup power unit distinct from a main power unit of the safety system. The set of sensors captures operational status parameter(s) of one or more of the component(s), environmental parameter(s) thereof and / or parameter(s) of the breathable air supplied thereto. Based on the integration, the data processing device controls supply of electrical power from the backup power unit to the set of sensors and / or one or more operational element(s) of the one or more of the component(s).

Smoke and heat evacuation device comprising a fixed frame, a movable shutter, means for actuating said shutter, and a monitoring box (1) fixed to the movable shutter. This box comprises: means (5) for detecting any movement of the movable shutter and measuring the position of said shutter relative to the frame, a wireless telecommunications interface (6). The detection of a movement of the movable shutter results in the execution of a monitoring operation comprising the measurement of the position of the shutter at the start and end of movement, the calculation of an amplitude of the movement, the counting of the duration of the movement, and the sending of this data to a remote server. A status observation operation can also be executed, automatically or on request. The monitoring box makes it possible to verify the normative conformity of the evacuation device and to reinforce the security of the building in terms of intrusion. Figure for the abstract: Fig. 1

This invention belongs to the field of air separation technology and discloses a filtration, ventilation, and oxygen-enriched air supply system and method for underground engineering projects. The system includes a filter absorber and an air separation device. Gas first passes through the filter absorber and then enters the air separation device. The filter absorber is used to filter toxic gases. The air separation device includes an adsorption separation module that separates nitrogen and oxygen from the input gas. The oxygen separated by the adsorption separation module is delivered to personnel or equipment requiring oxygen through a first output pipeline. The separated nitrogen is delivered to equipment requiring nitrogen through a second output pipeline. The adsorption separation module includes an adsorption tower. Gas enters the adsorption tower, and after pressurization, nitrogen-enriched air is discharged from the top of the adsorption tower. After depressurization, oxygen-enriched air is discharged from the bottom of the adsorption tower. This solution can reduce the air supply volume and the risk of toxic contamination in engineering projects. It can achieve active fire prevention and increase the oxygen content in the air, improving personnel comfort.

To provide a lifesaving evacuation system allowing people to be safely evacuate in a situation of being surrounded by smoke caused by fire.SOLUTION: A hydrant device 10 (10-1) is placed on a road surface of a watchman passage 12. The hydrant device 10 (10-1) is provided with a hydrant unit 26 and lifesaving evacuation units 30, 32 placed on both sides. Between the hydrant device 10 (10-1) and an adjacent hydrant device, air pipings 18 are arranged along a tunnel side wall higher than evacuees, and air heads 20 are placed in the air pipings 18 with a specific interval. A respirable area 46 is formed by discharging pressure air from the air heads 20 supplied from an air compressor placed inside of the watchman passage 12 by releasing a control valve, and discharging fresh air in a specific direction where upper half bodies of the evacuees evacuating through the watchman passage 12 pass through upon fire.SELECTED DRAWING: Figure 3

A pathogen protection device includes an enclosure made of air-tight material, the enclosure is configured to seal a user's head from outside of the enclosure 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, the filter is configured to remove pathogens from the filtered air.

The utility model relates to the technical field of civil air defense engineering equipment, in particular to an air interchanger for civil air defense engineering, which comprises a water bath cooling tank, a hot air pipe, a radiation cooling piece, a temperature sensor, a water injection pump, a drainage pump and a controller, the hot air pipe is arranged in the water bath cooling tank; the radiation cooling piece is arranged above the water bath cooling tank and is connected with the hot air pipe; the temperature sensor is mounted on the inner bottom wall of the water bath cooling tank; the output end of the water injection pump and the input end of the drainage pump communicate with the water bath cooling tank; the input end of the controller is electrically connected with the temperature sensor, and the output end of the controller is electrically connected with the water injection pump and the drainage pump. According to the utility model, the problem of poor cooling effect on exhausted hot air can be solved.

Disclosed are methods and a safety system of a structure for an air parameter based automatic bypassing of a source of breathable air within the safety system. In accordance therewith, an air analysis device is installed within the safety system along an air flow path of the breathable air from the source thereof. The safety system has a fixed piping system installed within the structure for supply of the breathable air across the safety system. A sensor associated with the air analysis device automatically detects a parameter of the breathable air circulating within the safety system. In response to detecting that the parameter of the breathable air is outside a predetermined threshold value, through a bypass controller device communicatively coupled to the air analysis device, the source of the breathable air is automatically bypassed with respect to the supply of the breathable air across the safety system.

Air treatment device comprising: - a sintered ceramic part (2) having a total porosity greater than 40%, - an air circulator (3) configured to generate an airflow to be treated through the ceramic part.

Disclosed are methods and a system of sensor-based smart unlocking of a firefighter air replenishment system. A safety system of an occupiable structure includes a breathable- air supply system to facilitate delivery of breathable air from a source of compressed air, and a fill station in a fire-rated evacuation area of the occupiable structure to supply the breathable air to an emergency personnel. The safety system also includes a smart lock associated with the breathable-air supply system to automatically unlock one or more location(s) of the breathable-air supply system usable by the emergency personnel to access the breathable air during an emergency state of the occupiable structure, and a sensor associated with the breathable-air supply system to detect the emergency state of the occupiable structure.

The invention discloses an intelligent control method of an intelligent civil air defense wartime ventilation system and an execution device thereof, particularly relates to the field of ventilation control, and comprises the steps of data acquisition, data processing, data analysis, fault judgment and control decision making. According to the method, sensor equipment is arranged at key positions such as an inlet of a ventilation pipeline and the front and rear ends of a fan, and environment parameters such as temperature and humidity, air volume, air pressure, chemical toxic agent concentration and biological warfare agent concentration and state parameters such as equipment vibration and current are collected once per second. And after data cleaning and conversion, inputting an air quality evaluation model, a ventilation system energy consumption model and an equipment reliability model to obtain an air quality comprehensive index, energy consumption, a fan and valve fault probability and a filter blockage degree. When related indexes exceed limits, air quality control, energy consumption optimization and equipment fault processing strategies are executed, intelligent regulation and control of a ventilation system in wartime are achieved, and safe and stable operation of the civil air defense engineering environment is guaranteed.

Disclosed are a method, a device and a system of a sensor integrated safety system based computing platform. The computing platform is executed on a data processing device and integrated with a set of sensors associated with components of a safety system In accordance therewith, the data processing device collects a number of parameters of the components of the safety system and / or of access thereof through detection of the number of parameters via the set of sensors. The number of parameters includes one or more parameter(s) related to breathable air from a source within the safety system supplied thereacross via a fixed piping system implemented therein and / or access of the breathable air. The data processing device also monitors the safety system and / or one or more components thereof based on the collected number of parameters.

To provide a sleeve, a smoke exhaust port structure, an installation method of the smoke exhaust port structure, and a removal method of the smoke exhaust port structure, for safely and easily performing installation work and removal work of the smoke exhaust port structure, by arranging the sleeve for maintaining airtightness of a smoke exhaust port including a frame member and a smoke exhaust panel on the outside of the frame member.SOLUTION: In a sleeve 4 for maintaining airtightness of a smoke exhaust port 1 attached to a smoke exhaust duct 5, the smoke exhaust port 1 includes a frame member 2 and a smoke exhaust panel 3 openably / closably attached to the frame member 2. A smoke vent structure A including a sleeve 4 and a smoke vent 1 attached to a smoke vent duct 5, wherein the sleeve 4 is configured to be disposed outside a frame member 2, the smoke vent 1 includes the frame member 2 and a smoke vent panel 3 attached to the frame member 2 so as to be openable and closable, and the sleeve 4 is disposed outside the frame member 2.SELECTED DRAWING: Figure 1

Disclosed are a method, a device and a system of sensor-based breathable air quality monitoring in a safety system of a structure. In accordance therewith, an air quality analyzer is coupled to a fixed piping system installed within the structure to facilitate delivery of breathable air from a source thereof. The air quality analyzer includes an air sequestration chamber in which a portion of the breathable air is segregated for analysis as an air sample, and one or more sensor(s) to sense one or more air quality parameter(s) from the air sample within the air sequestration chamber. An analysis module of the safety system performs analysis of the sensed one or more air quality parameter(s) based on coupling thereof to the air quality analyzer and transmits data associated with the analysis over a communication link.

The utility model belongs to the field of civil air defense engineering, and discloses a civil air defense engineering gas defense channel structure which comprises a suction device used for pushing airflow to flow and further comprises an air bellow device used for moving up and down along the side wall of a channel, and an outer cover device used for being matched with the side wall of the channel for protection is arranged on the outer side of the air bellow device. The suction device is arranged in the air bellow device, the air bellow device comprises a box body assembly, a lifting assembly is arranged behind the box body assembly, and an exhaust pipe is installed at one end of the box body assembly; the outer cover device comprises a fixing frame, a protective net cover is rotationally installed at one end of the fixing frame, and two lock catches are symmetrically installed on the protective net cover. According to the gas defense channel structure of the civil air defense project, through the arrangement of moving up and down along the side wall of the channel, the height range for adjusting sucked air is enlarged, and the gas defense comprehensiveness of the channel is guaranteed; through the arrangement of sucking gas flow close to the bottom of the channel, suction of poison gas with large specific gravity such as carbon dioxide is guaranteed.

To obtain a building information processor capable of preventing gas or smoke from filling an inside of a building therewith during generation of gas leakage and fire, and to provide a building information processing method and a building information processing program therefor.SOLUTION: A building information processor comprises: an acquisition part for acquiring information about a gas concentration from a sensor provided inside a room in a building; and a determination part for determining whether or not the gas concentration is a reference value or more based on the gas concentration acquired by the acquisition part. When the determination part determines that the gas concentration is the reference value or more, the building information processor performs control of air inflow from the room to the other room.SELECTED DRAWING: Figure 3

Disclosed are a method, a device and a system of a block subassembly associated with a component of a safety system of a structure. The block subassembly is provided with one or more input port(s) and one or more output port(s) on a main frame thereof. The block subassembly is coupled to the component of the safety system. The component is configured to receive breathable air from a source within the safety system via a fixed piping system implemented within the structure. Breathable air from the source is routed via the one or more input port(s) to the one or more output port(s) on the main frame of the block subassembly and then into the component of the safety system.

Disclosed are methods and a safety system of a structure for an air parameter based automatic purging of breathable air within the safety system. In accordance therewith, an air analysis device is coupled within the safety system along an air flow path of the breathable air from the source thereof. The safety system has a fixed piping system installed within the structure for supply of the breathable air across the safety system. A sensor associated with the air analysis device senses a parameter of the breathable air within the safety system. In response to an alert signal indicative of the sensed parameter of the breathable air being outside a predetermined threshold value, a valve and / or a vacuum pump within the safety system automatically purges the safety system of at least a portion of the breathable air.

Disclosed are methods and a system of locating an emergency air fill station of a safety system implemented within a structure in low visibility. The safety system includes a source of breathable air, a fixed piping system within the structure for supply of the breathable air from the source across the safety system, and an emergency air fill station coupled to the fixed piping system to provide access to the breathable air therethrough for personnel to fill an air bottle. A sensor in conjunction with a processor detects a visibility parameter in a vicinity of the emergency air fill station. The processor automatically controls a parameter of one or more output device(s) located proximate to and / or on the emergency air fill station in accordance with the detection to aid the personnel in locating the emergency air fill station.

The utility model relates to the technical field of protection unit air supply systems, and discloses a protection unit air supply system which comprises two supports, the tops of the two supports are fixedly connected with a shell, the left side of the interior of the shell is fixedly connected with a transverse plate, the top of the transverse plate is fixedly connected with a motor, and the right side of the motor is fixedly connected with fan blades. The right side of the shell is communicated with a radioactivity detection sampling tube, the right side of the radioactivity detection sampling tube is communicated with a dust filter pressure difference measuring tube, the right side of the dust filter pressure difference measuring tube is fixedly connected with a filter, and the interior of the filter is fixedly connected with a filter screen. According to the utility model, the motor drives the fan blades to rotate, the radioactivity detection sampling tube is used for sampling and detecting the environment, the pressure difference measuring tube of the dust filter detects the conditions of the filter screen and the filter according to the pressure difference, the filter screen blocks dust, and the pressure difference measuring tube of the filter absorber monitors the work of itself, so that the air purification efficiency and the energy utilization efficiency are improved.

A respiratory, skin, and eye protection device having at least one filter and at least one fan to maximize filtration while minimizing power consumption, noise generated, and device footprint. The least one filter is configured to simultaneously achieve an aerosolized particle contamination filtration efficiency of about 50% or greater for particles having a size of about 0.3 μm and a vapor contamination filtration efficiency of about 50% or greater for one or more of Novichok nerve agent (A232), thickened venomous nerve agent (TVX), sulfur mustard agent (HD), thickened sulfur mustard agent (THD), soman nerve agent (GD), and sarin nerve agent (GB). During the operation and monitoring of the respiratory, skin, and eye protection device, at least one fan is activated when concentrations of select aerosolized chemical, biological, radiological, nuclear, and explosive (CBRNE) agents are detected.

A safety system implemented within a structure includes a source of breathable air, and a fixed piping system to supply the breathable air from the source to each level of a number of levels of the structure. The fixed piping system is implemented in a loop architecture including a first portion proximate the each level of the number of levels and a second portion farther away therefrom. In accordance with the loop architecture, the first portion and the second portion are implemented as a continuous loop with respect to the source of the breathable air such that, even during a compromise of a first sub-portion of the first portion relevant to one or more level(s) of the number of levels proximate thereto, unaffected by the compromise, the breathable air continues to be supplied to a second sub- portion of the first portion by way of the second portion.