118results about "Fire rescue" patented technology

The system comprises a main network (2) situated downstream from a check valve (1) that supplies the sensors, for example, in the form of sprinklers. This main network (2) is subdivided into secondary networks (21, 2″, 2′″), each secondary network being isolated from the main network (2) by a valve (6, 6′, 6″) that enables water to be prevented from entering the portions of the network in which it is not needed. The valve is capable not only of compensating for losses in pressure in the network but also for opening itself completely when a fire is detected.

A patient interface assembly for use with gas monitoring. The patient interface includes a mask shell having a portion that seals against the face of a patient and a mask attachment coupled to an opening of the shell. The mask attachment has a mask connection section coupled to the opening of the shell, an airway adapter section that serves as a gas measurement site for use in measuring a respiratory variable, and a breathing system connection section adapted to be coupled to a to a patient circuit. The gas measurement site, which includes a window, may be disposed on the conduit, the shell, or both. An access port, defined in the mask, the mask attachment, or both permits a sampling tube to be placed in fluid communication with an airway of a patient.

A modular insert is provided for defining an air path for use with CPAP, VPAP, auto CPAP or a ventilator. The modular air path insert may be provided with one or more sound suppressing structures, e.g., to act as mufflers. The insert can be readily exchanged or replaced, e.g., for hygienic purposes.

The present invention relates to a spray head for spreading liquid or semi-liquid products, preferably foodstuff. A product feeder (5) is provided to feed or convey a product (2) through a feed conduit (3) from a product container (4) to the spray head (1) and spraying nozzles (18) are provided to spread the product (2) when it is discharged from the spray head (1). The spray head (1) comprises three separate members, namely an upper coupling member (7), a lower coupling member (8) and a nozzle member (9) provided therebetween. The upper coupling member (7) is connected to the lower coupling member (8) and to the feed conduit (3). The nozzle member (9) and/or the upper coupling member (7) define, when the upper and lower coupling members (7, 8) are interconnected, distributing spaces (13) for distributing product (2). The spraying nozzles (18) of the nozzle member (9) are provided to open and to close. The nozzle member (9) is removable from the upper and lower coupling members (7, 8) when these members have been disconnected from each other.

A large convoluted space, such as a multi-story concourse of an airport is isolated and a chemical or biological agent in the concourse is deactivated. A plurality of deactivation gas sources (100) introduce a deactivation gas at multiple points along the concourse. Fans (66, 106) circulate the deactivation gas, sensors (110) sense concentrations of the deactivation gas at numerous points around the concourse and exhaust fans (66) exhaust air, spent deactivation gas, and some deactivation gas. A control processor (84) controls the generators, the circulation fans, and the exhaust fans in accordance with the gas concentrations sensed by the sensors to increase and decrease deactivation gas concentration in selected subregions of the concourse by increasing or decreasing generation, increasing or decreasing exhausting, or altering flow patterns among subregions.

A Misting Blanket Fire Protection system is a solution for preventing buildings from being destroyed by wildfires. The system is easy to install and is an independent system that is able to operate independently from electricity and water supply from the city. This invention is a movable system which composes of a misting blanket, a water source and an engine water pump. The misting blanket releases water sprinkles to wet any building needing protection to prevent from catching fire when a wildfire approaches.

The invention discloses a device and a method for assisting airplanes to conduct airline extinguishment. The device is an onboard airline electronic system, comprising a navigation and combustion source sensor, a database system, a voice communication system, a data link, a human-computer interface, a display system, a data interface system and a comprehensive task processing system, wherein all systems are connected with a comprehensive task processing system. The device is utilized to conveniently formulate a flight plan on flying to the scene of fire, an extinguishment strategy flight plan and a round-trip water-drawing flight plan. Meanwhile, the device can monitor and alarm fire behavior display, extinguishment material spray suggestion, extinguishment material spray prediction and extinguishment flight tasks. The method and the device for implementing airline extinguishment researched by the invention can effectively assist pilots to conduct extinguishment, improve extinguishment success rate, save cost, and strengthen safety in the process of executing the tasks.

Provided is a multi-color paint application apparatus, which includes: a paint storage portion having a number of paint containers in the inside of a storage body; a cover portion that can open and close the upper side of the storage body of the paint storage portion; a discharge portion which includes discharge tubes, and auxiliary containers paint discharge valves; a sensor portion having sensors which are respectively fixed to the discharge tubes, in which an alarm sound is produced by a buzzer if electric power is short-circuited; an air inlet portion including a 3-way valve which makes pressure of air selectively flow into the center of the cover portion; a dehumidification portion which is connected with an expansion tube where a drain plug that can remove moisture by adiabatic expansion of the compressed air is formed with the 3-way valve in the air inlet portion; and a spray gun which can selectively spray the compressed air through a switch formed in a handle lever.

An air purifier has an air flow cavity bounded by cavity walls and a source of ultraviolet light emitting ultraviolet light within the cavity. The cavity walls have an ultraviolet light reflective coating. A plurality of photocatalytic particles are associated with the reflective coating. The photocatalytic particles are of a type which leads to production of oxygen and hydroxyl free radicals when illuminated with ultraviolet light in the presence of water.

Hydrofluoroolefins and hydrochlorofluoroolefins contaminated with acid and/or iron compounds are purified and stabilized by contacting the haloolefin with a solid adsorbent such as alumina and then combining the purified haloolefin with one or more stabilizers such as an epoxide. The purified, stabilized haloolefins thus obtained are useful in a wide variety of end-use applications, including, for example, as refrigerants, propellants, foaming agents, fire suppression or extinguishing agents, and solvents.

The invention discloses an automatic carbon dioxide fire extinguishing system and relates to a fire extinguishing system. The system comprises a plurality of independent unit systems, wherein each unit takes charge of a corresponding protective zone; carbon dioxide storage bottles are suspended on a fire extinguishing agent bottle group bracket; each carbon dioxide storage bottle is connected with a collecting pipe through a high-pressure hose; selector valves for combining distribution systems are arranged between the collecting pipe and a master pipeline; each selector valve corresponds to one protective zone; a fire extinguishing agent delivery pipe extends into a fire protection zone; a nozzle is arranged at the tail end; a fire detector is arranged inside each protective zone; a start steel cylinder is connected with each carbon dioxide storage bottle through a start pipeline. The system is efficient and reliable automatic fire extinguishing equipment, can automatically detect a fire, automatically alarm and automatically put out a fire, comprises three operation modes (full-automatic start, manual start and mechanical emergency start), adopts the carbon dioxide as the fire extinguishing agent, does not contaminate articles, is simple to clean after a fire disaster, good in insulativity, low in cost, convenient to install, reliable in performance, efficient and timely.

Disclosed is a bracket for fixing a reducer in a fire sprinkler, the bracket including: a main body part provided with a cutaway seat for allowing the reducer to be seated therein; and a coupling part openably coupled with the main body part, formed with a groove at a side thereof to lock the reducer seated in the cutaway seat of the main body part, and configured to lock and release the reducer seated in the cutaway seat of the main body part by being opened and closed, wherein an edge of the cutaway seat of the main body part is provided with a main body part wing to increase a contact area with the reducer seated in the cutaway seat, and an edge of the groove of the coupling part is provided with a coupling part wing to increase the contact area with the reducer.

A main transformer explosion fire extinguishing system pipe network explosion-proof device comprises a side face sleeve explosion extinguishing system pipe network explosion-proof unit and a top sleeve explosion extinguishing system pipe network explosion-proof unit. The side face sleeve explosion extinguishing system pipe network explosion-proof unit is structurally composed of long stand columns (A1), explosion-proof beams (A2), explosion-proof supports (A3) and an explosion-proof steel net (A4). The top sleeve explosion extinguishing system pipe network explosion-proof unit is structurally composed of long stand columns (B1), explosion-proof beams (B2) fixed to the long stand columns (B1) and explosion-proof supports (B3) arranged between the explosion-proof beams (B2). The main transformer explosion fire extinguishing system pipe network explosion-proof device has the beneficial effects that the explosion-proof device is the essential protective facility of a transformer serious explosion fire extinguishing system pipe network, and can maximally protect the transformer extinguishing system pipe network against influence of transformer explosion and prevent explosion parts such as transformer sleeves, ascending flanged bases and flanges from harming the extinguishing system pipe network and electric equipment and even personnel in the explosion direction.

A method of operating a life support system for an aircraft, the system including a plurality of oxygen supply apparatus, each of which in use is operable to supply product gas, which may be pure oxygen or oxygen enriched gas, to a breathing gas supply apparatus, at least one of the oxygen supply apparatus being a main oxygen supply apparatus and the remainder of the oxygen supply apparatus being auxiliary oxygen supply apparatus, the main oxygen supply apparatus being operable independently of the auxiliary oxygen supply apparatus, characterized in that the method includes operating the main oxygen supply apparatus and supplying product gas to each of the auxiliary oxygen supply apparatus.

The invention is suitable for the technical field of fire-fighting safety and provides a fire-fighting polling method, a fire-fighting polling device, electronic equipment and a computer readable storage medium. The fire-fighting polling method comprises the following steps: controlling a polling terminal to move along a preset polling path; in the moving process, acquiring environment informationaround the polling terminal, wherein the environment information comprises gas concentration information and heat radiation information; judging whether gas leaks around the polling terminal or not based on the gas concentration information; judging whether a fire behavior happens around the polling terminal or not based on the heat radiation information; and sending a first command when gas leakage or fire behavior happens around the polling terminal is judged, wherein the first command is used for indicating a preset valve controller to execute an operation of closing a gas valve. The humanresources can be saved, the dangerous omen judging objectivity and accuracy are improved, and dangerous omen spread can be found and avoided as early as possible favorably.

The invention discloses a safety electric cabinet and a control method thereof. The safety electric cabinet comprises a cabinet body, a door body and a ventilating hole, wherein the door body is pivoted on the cabinet body, and the ventilating hole is arranged in the cabinet body. The safety electric cabinet also comprises a high sensitive smoke detector and an air charging apparatus, a movable part on the door body or cabinet body is assembled with the cabinet body together in a sealing manner; the ventilating hole is provided with a gate or valve sealed after the ventilating hole is closed; the high sensitive smoke detector detects whether smoke exists in the cabinet body; and the air charging apparatus is connected with the cabinet body and is provided with a control valve for controlling the on or off of the air charging apparatus. The control method comprises the steps of: when the high sensitive smoke detector detects whether smoke exists in the cabinet body, closing the ventilating hole, and starting the air charging apparatus and charging air to the cabinet body for diluting oxygen so that fire is avoided.

The invention discloses a self-locking pressure signal feedback device which comprises a valve body, a valve cover, a piston, a microswitch and a channel, wherein the piston is provided with a lower piston body and an upper piston body; the valve body is internally provided with a baffle part defining the moving range of the lower piston body; the top of the upper piston body is provided with an exposed section protruding out of the valve cover; a wide-mouth groove internally provided with a ball is formed in the side part of the upper piston body, is perpendicular to the moving direction of the upper piston body and is provided an inclined wall facilitating vertical rolling of the ball; one side of the ball is arranged in the wide-mouth groove, and one side, outside the wide-mouth groove, of the ball is connected with the microswitch through an elastic part; the ball is pushed out of the wide-mouth groove by the upper piston body and outwards extrudes the elastic part when the piston is located at the topmost part; the ball moves into the wide-mouth groove under the counter force of the elastic part when the piston is located at the bottommost part. The device is compact in integral structure and convenient and rapid to install, has a self-locking function, can be reset only by man power after being started and is safe and reliable in operation, and system debugging does not need air pressure starting and can be carried out manually.

Method, apparatus and breathable compositions for protecting a person from reactive oxygen species in the body are described. The invention involves providing a person with a breathing gas composition comprising at least one fuel gas compound. Apparatus and methods for providing such breathing gas compositions are described.

Disclosed is a humidifier apparatus using a photocatalyst having an air-cleaning function, and more particularly, to a humidifier apparatus using a photocatalyst having an air-cleaning function, which is capable of performing an indoor air-cleaning function and a humidifier function while minimizing energy consumption.

A liquid mist fire extinguisher, comprising a container for holding a gas and a liquid under pressure. The extinguisher has valve assembly at the upper end of the container, a valve for simultaneously releasing said gas and said liquid separately from the container, and a hose for feeding said gas and said liquid separately through a nozzle. The nozzle assembly includes means for feeding said gas and said liquid separately through a mixing chamber, and exiting orifices in an end surface of said nozzle assembly for issue of mixed gas and liquid in a fine mist.

The invention relates to a crawler type fire extinguishing robot. A shell (1) drives crawlers to operate through chain wheels (28), chains (27) and driving wheels (26b), track roller frames (23) and track rollers (22) of the track roller frames (23) are hinged to the lower ends of track roller bearing frames (21), and buffer devices (24) are connected to the upper ends of the track roller bearingframes (21). Supporting shafts (20a) are hinged to the rear parts of connecting plates (20) hinged to the middle part of the shell, and the front ends of the connecting plates (20) hinged to the middle part of the shell are hinged to the rear ends of tension roller brackets (16), and large tension rollers (3) and small tension rollers (17) are connected to the upper and lower ends of the tension roller brackets (16) separately. Spring frames (19) hinged to the connecting plates are hinged to tension devices (18), and the tension devices are connected with the tension roller brackets (16). Thecrawler type fire extinguishing robot has the following advantages that a, the crawler type fire extinguishing robot has a large supporting area, is suitable for soft and muddy road surfaces, has small rolling friction with the road surfaces and has good passing performance; and b, the crawler is provided with the tension and buffer devices, so that the ability of the crawler type fire extinguishing robot to pass over obstacles is greatly improved.

The invention relates to the technical field of firefighting auxiliary equipment, in particular to an energy-saving cleaning device for a fire hose. The energy-saving cleaning device comprises a cleaning box and a driving module. A lower brush roll is rotationally arranged in the cleaning box, one end of the lower brush roll stretches out of the side wall of the cleaning box and is coaxially and fixedly connected with a first gear and a first belt disc, and the driving module is connected with a driving belt wheel. The position, above the lower brush roll, in the cleaning box is rotationally connected with an upper brush roll through a downward pressing assembly in a lifting manner. The two ends of the upper brush roll and the two ends of the lower brush roll are coaxially and fixedly connected with transmission gears, and an upper pressing roll and a lower supporting roll which are arranged up and down are rotationally arranged at the position, beside the upper brush roll, in the cleaning box. The lower supporting roll is coaxially and fixedly connected with a driven belt wheel and a second steering gear. A transmission gear belt set is arranged on the outer side wall of the cleaning box, and the upper pressing roll and the lower supporting roll are driven through multiple rotating gears. The energy-saving cleaning device has the advantages of being simple in structure, convenient to operate, high in cleaning quality, low in manufacturing cost, high in applicability and convenient to popularize and implement.

The invention discloses a recovery method of an alkyl-halide fire extinguishing agent in a fire extinguishing bottle for aviation, which belongs to the technical range of recovery of fire extinguishing agents. The recovery method comprises the following steps of: firstly, establishing a fire extinguishing agent recovery system which enables a fire extinguishing agent to be liquefied by reducing the temperature and increasing the pressure simultaneously; setting the temperature of a refrigeration house to be -40 DEG C and the volume of a pressure storage tank to be 35L according to practical needs; placing the pressure storage tank in the small refrigeration house or refrigerator, placing the fire extinguishing bottle outside the small refrigeration house or refrigerator; connecting the pressure storage tank to the fire extinguishing bottle and the fire extinguishing agent storage tank respectively; opening an inlet shutoff valve to release the fire extinguishing agent in the fire extinguishing bottle to the pressure storage tank, wherein the pressure storage tank is higher than the fire extinguishing agent storage tank, and the liquid fire extinguishing agent in the pressure storage tank flows towards the fire extinguishing agent storage tank under the action of gravity; and automatically recovering according to specific pressure. The recovery method diclosed by the invention has the advantages that the fire extinguishing agent discharged into the atmosphere is obviously reduced, so that the environment is protected, and the purposes of reducing the waste of the fire extinguishing agent and improving the recovery efficiency of the fire extinguishing agent are fulfilled.

The invention discloses an electric vehicle safety charging station which comprises a charging station main body; the front side wall of the charging station main body is provided with a maintenance door; the top of the charging station main body is provided with a fire extinguishing cover; the top of the left side wall of the charging station main body is provided with a rain shelter; a solar panel is hinged to the left side of the top of the rain shelter; an electric pneumatic telescopic rod is hinged to the top of the rain shelter; the bottom of the rain shelter is provided with a propaganda display screen; the bottom of the left side wall of the charging station main body is provided with a charging base; parking stall grooves are formed in the top of the charging base at an equal interval; the bottom of an inner cavity of the top of the fire extinguishing cover is provided with a fire suppression bottle; the output end of the bottom of the fire suppression bottle is provided witha guide pipe; the guide pipe is provided with an electromagnetic valve; and a spray thrower is communicated with the bottom of the guide pipe. The electric vehicle safety charging station provided bythe invention is reasonable in structure design, facilitates heat dissipation on the charging station main body, can timely perform fire extinguishing treatment when a fire occurs and reduces the possibility of occurring a larger accident.