35results about How to "Prevent fire" patented technology

The invention relates to a safety fire zone dividing method for a nuclear island factory building, which comprises the following steps: (1) dividing safety fire zones; (2) determining the type of each safety fire zone; (3) determining the fire endurance of each safety fire zone; and (4) arranging a fire boundary device on the boundary of each safety fire zone. The method can fully divide the safety fire zones for a safety system of the nuclear island factory building, can effectively isolate different safety series of devices and parts for executing the same safety function, and avoids the same fire causing common model fault of different series of devices for executing a certain safety function.

The present invention relates to methods of using at least one fluoroketone selected from monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones for i) extinguishing fire by applying to the fire such a fluoroketone, ii) preventing fire in an air-containing enclosed area containing combustible materials by introducing into the area such a fluoroketone and maintaining the fluoroketone in an amount sufficient to suppress combustion of combustible materials in the enclosed area, and iii) reducing or eliminating the flammability of a flammable working fluid, by mixing between about 0.1 to about 99 percent by weight of such a fluoroketone with the flammable working fluid.

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 negative pressure dust-removing system for wood dust. The negative pressure dust-removing system for the wood dust comprises a gas pumping box; the lower surface of the gas pumping box is fixedly connected with a gas pumping pipe; the surface of the back end of the gas pumping box is fixedly connected with a spark catcher through a pipeline; the surface of the back end ofthe spark catcher is fixedly connected with a fire extinguishing device through a pipeline; the surface of the back end of the fire extinguishing device is fixedly connected with an explosive-proof valve through a pipeline; the surface of the back end of the explosive-proof valve is connected with a dust-removing device through a pipeline; and the surface of the upper end of the dust-removing device is fixedly connected with a fan device through a pipeline. The negative pressure dust-removing system for the wood dust pumps air in the pipeline through the fan device to form negative pressure,can adsorb the dust, and can guarantee high efficiency and convenience of dust removal through the spark catcher and the fire extinguishing device and through the dust-removing device combining a filtering cylinder and water spraying, so that the use convenience and safety are greatly improved, the dust-removing effect is improved and the working efficiency is guaranteed.

Methods and apparatus include a handheld printer manipulated back and forth by an operator during use to print an image. An inkjet printhead of the printer has a plurality of fluid firing actuators arranged in a substantial column. A controller communicates with the printhead to identify active actuators given to fire at a particular time during use to print the image. However, to prevent unsightly print quality from occurring during overlapping adjacent print swaths, for example, certain of the identified actuators are prevented from firing. Especially, actuators in the column further from a center of the column fire less frequently than those closer to the center. A position sensor is also used to locate the printhead relative to the image. The controller correlates the position to the printhead and actuators and fires the active actuators or not.

A device and method for locking a firearm are provided, the device having a locking round, elongate locking rod, protective cylinder, and locking tool. The locking round has a radial flange, an internal thread, and a plurality of prongs associated therewith, wherein the prongs are disposed about a circumference of the locking round. The locking rod has a conical cam, an external thread, and a first engagement member, wherein the cam is operable to radially expand the prongs through engagement between the internal and external threads. A removable tool having a second engagement member is operable to be inserted into the protective cylinder that is rotatably coupled to the locking rod, wherein a rotation of the tool is operable to operable to engage the shoulder, prongs, and protective cylinder with the firearm, thus providing first, second, and third friction regions for locking the locking device in the firearm.

A user engageable device disposed within the tobacco burning path of a smoking article's ember at a pre-selected point. The device may include a visual and / or audible and / or olfactory warning component which alerts the user in response to a proximate ember. This provides one or a combination of a visual, audible, or olfactory alert to the user that the ember has reached a predetermined point. The device is preferably in the form of a sleeve frictionally engageable around the smoking article, but can also may be engaged upon or impregnated into a wrapper of the article's cylinder. Alternatively, the sleeve type device may be disposed within the wrapper. Alternatively the indicator material may also be in the form of selectively placed integrated or stick-on patches.

The present invention belongs to the field of electrical equipment, and concretely discloses a fireproof electric meter box. The inside of the electric meter box is monitored through sensing devices on the electric meter box, and once the inside of the electric meter box is caught on fire by short circuits or circuit ageing, a fire extinguishing apparatus on the electric meter box is started to put out the fire source.

The invention relates to a multifunctional public trash can which comprises a can body with an open bottom end. The upper end of a can body is connected with a can cover, the bottom of the can body is detachably connected with a purifying container, the purifying container is sequentially provided with a filter screen, a decomposition layer, a disinfection layer and a water storage chamber from top to bottom, one side of the water storage chamber is connected with a water pipe, the bottom of the water storage chamber is connected with rolling wheels, an inner can I is arranged in the can body, an inner can II provided with a plurality of holes is arranged on a base plate, a solar cell panel and a power supply device are arranged on the outer side of the can body, a smoke alarm is arranged on the inner surface of the can cover, and the smoke alarm and the solar cell panel are respectively connected with the power supply device. Therefore, solid and liquid garbage can be treated in a classified mode, and the liquid garbage can be repeatedly utilized. In addition, solar energy can be effectively utilized, and the problem that the trash can is difficult to clean, a surrounding environment is influenced and the trash can is easily fired is also solved.

The invention discloses an integral residence discharge flue with fireproof and auto-cleaning functions. The integral residence discharge flue comprises an integral flue welded with a stainless steelmetal tube integrally, wherein a heating device and a flue cleaning device are arranged on the integral flue; supporting hoops are arranged at the welded positions of the outer side of the integral flue in a sleeving manner respectively; an oil-water collection tank is communicated with a sewer through a pipeline. According to the integral residence discharge flue with fireproof and auto-cleaningfunctions provided by the invention, the integral flue is washed by using stainless steel water, the heating device and the flue cleaning device mounted on the integral flue are used for cleaning oilcontaminations adhered to the inner wall of the integral flue, when kitchen ventilators in every family are used, the oil contaminations are washed synchronously by washing nozzles, lampblack is purified secondarily through a lampblack purifier on the top of the flue upwards, exhausted gas reaches a relatively high environmental protection effect, and oil stains are discharged to the sewer downwards.

The invention relates to fire-fighting equipment, in particular to a fire extinguishing system for a stay cable tower end. The system comprises a spraying fire extinguisher and a controller, wherein the spraying fire extinguisher comprises a water tank fixed inside a cable tower; a water outlet pipe is arranged at the bottom of the water tank; the inlet end of the water outlet pipe communicates with the water tank; a water outlet main is arranged at the outlet end of the water inlet pipe; a plurality of branch pipes communicating with the water outlet main are arranged at the outlet end of the water outlet main; a plurality of nozzles directly facing stay cables and cable tower anchorage points are arranged on the branch pipes; the controller comprises a ball valve mounted on the water outlet main and a control cabinet used for controlling the opening-closing of the ball valve; and the ball valve is electrically connected with the control cabinet. According to the system provided by the invention, the comprehensive and detailed fire-fighting design is adopted for an anchorage area of the stay cable tower end, so that a fire disaster can be effectively prevented from occurring in course of both bridge construction and post-stage operation. By utilization of the control cabinet, a smoke signal is acquired, a spraying instruction is issued, fire is automatically and timely extinguished, and the fire disaster is prevented from spreading and endangering the bridge safety.

The invention discloses a fireproof floor slab. The fireproof floor slab is composed of a fixing plate I, a fixing plate II, a sliding plate, a bottom plate, a hollow layer, a fire extinguishing device, an alarm and a controller, wherein the fixing plate and the bottom plate connected through a slideway I perpendicular to the bottom plate; the slideway I is connected with the sliding plate througha slider I; the bottom of the fixing plate II is provided with a slideway II which is connected with a connecting plate through a slider II, and the connecting plate is provided with the fire extinguishing device and the alarm; the fire extinguishing device and the alarm are connected with the controller through wires; a middle layer is arranged above the bottom plate, and a support rack is arranged inside the middle layer. The fireproof floor slab has the advantages of being capable of timely extinguishing fire and avoiding fire accidents.

Disclosed is an ignition prevention apparatus for a crusher, having supply adjustment means (3a, 3b); a density measurement means (7) for measuring the density of carbon monoxide and / or carbon dioxide at the outlet of a crusher (5); and a storage means (11) for storing, as an analysis value, the ratio between the fixed carbon content fraction and the volatile matter content fraction in solid fuel. In the crusher (5) for crushing the solid fuel, a control means (11) controls the supply adjustment means (3a, 3b) so that the ratio between the fixed carbon content fraction and the volatile matter content fraction in the solid fuel supplied to the crusher (5) is changed on the basis of measurement results of the density measurement means (7) and analysis values. With this structure, ignition can be prevented within the crusher (5).

The invention discloses a resistance wire liquid heater. A control chamber and a heat exchanging chamber are formed in a heater shell. A first voltage plug-in, a first IGBT switch and a first driver which are arranged in the control chamber are sequentially connected. A first voltage sensor and a first current sensor are connected to a circuit between the first voltage plug-in and the first driverin parallel. A heat exchanger shell is provided with a shunt water inlet horn opening and a flow collecting water outlet horn opening. A first resistance wire heating pipe in the heat exchanging chamber is connected with the first driver. The temperature sensor collects medium temperature data to the first driver. A first fuse protector is connected to a power supply circuit of the first resistance wire heating pipe in series and collects the temperature of the first resistance wire heating pipe. According to the resistance wire liquid heater, the targeted diagnosis and drive instructions canbe made according to the situations of voltage, currents and temperatures, the resistance wire liquid heater has the beneficial effect of automatic protection, heat conduction pipes are distributed in the heat exchanging chamber in a staggered manner, it is ensured that each space of the heat exchanging chamber is covered with a temperature field, and a uniform and sufficient heat exchanging effect is achieved.

The invention discloses an anti-collision detection device applied in automatic driving, which comprises automobile tires, automobile brake pads, automobile front bumpers, automatic brake boxes, automobile drive batteries, automobile front windshields, and liquid crystal display screens. The automobile driving battery is installed above the distance detector, the automobile front windshield is installed above the automobile driving battery, the liquid crystal display is installed above the automobile front windshield, and the liquid crystal display A signal receiver is installed under the screen, a car trunk cover is installed under the signal receiver, a rear view probe is installed under the car trunk cover, an intelligent processing box is installed under the rear view probe, and the rear view probe is installed under the rear view probe. An infrared scanner is installed inside the probe. The beneficial effect is that the electric vehicle can measure, calculate and sense the distances in all directions, and remind the driver, and can effectively prevent the battery of the electric vehicle from igniting and exploding.

The invention discloses a method for diagnosing unsafe failure forms of a Pack system. The method comprises the following steps: (1) calculating the occurrence probabilities of multiple unsafe failureforms in the Pack system; (2) calculating an average value of the occurrence probabilities of the multiple unsafe failure forms to obtain a thermal runaway occurrence probability P of the Pack system; (3) calculating an estimated occurrence probability Pre of which the thermal runaway occurrence probability P is greater than a constant A according to a formula Pr=sigmaA>P, and diagnosing an unsafe failure form of the Pack system according to the estimated occurrence probability Pre. The method for diagnosing the unsafe failure forms of the Pack system can quickly, effectively, safely and accurately diagnose the unsafe failure forms of the Pack system of an electric vehicle.

The invention discloses a refractory brick prefabricated part, which comprises a fourth positioning block, a refractory brick body, a third through hole and a fourth positioning hole, the top of the refractory brick body is provided with a first positioning block and a second positioning block, and The first positioning block is set on the left side of the second positioning block, the bottom of the refractory brick body is provided with a first positioning hole and a second positioning hole, and the first positioning hole is set on the left side of the second positioning hole, the refractory brick body A third positioning hole and a fourth positioning hole are arranged on the left side wall, and the third positioning hole is arranged above the fourth positioning hole, and a third positioning block and a fourth positioning block are arranged on the right side wall of the refractory brick body, The top of the refractory brick body is provided with a first through hole and a second through hole, and the right side wall of the refractory brick body is provided with a third through hole. The invention is convenient for masonry, convenient for masonry construction of the kiln body, scientific and reasonable in structure, firm in connection, excellent in heat insulation ability, and can effectively guarantee service life and quality.

The invention relates to an energy-varying lightning-absorbing system apparatus. The apparatus comprises an active portion and a passive portion. The active portion comprises a lightning protection power distribution cabinet, and the lightning protection power distribution cabinet comprises a casing, a switch, a non-freewheeling switching type lightning protection and a lightning protection battery. The passive portion is composed of one or more passive lightning-absorbing assembly, and each passive lightning-absorbing assembly comprises a lightning-eliminating rod and multiple lightning-absorbing devices. The system provided by the invention absorbs atmosphere electrical and magnetic fields by use of a combined lightning protection form so as to destroy lightning generation conditions, can be started and work under ultra-low voltages, guarantees a lightning-absorbing effect, is beautiful in appearance and is free from maintenance.

Provided is a removable safety-locking device or safety clip for use with multifunctional tools in a car functioning as a cigarette lighter socket adapter, safety hammer and cutter. The safety-locking device has a flexible clip body that engages with the multifunctional tool to prevent accidental firing of the safety hammer or accidental injury or cutting by the cutter or blade. The flexible clip body has a substantially semicircular downwardly depending pair of arms and a knife-block formed at and extending from an apex of the pair of arms.

The invention discloses a safe charge-discharge device and method of a handheld terminal. When a mobile phone is used, a charge-discharge detection unit is used for detecting a charge-discharge stateof the mobile phone, a battery is used for supplying power if charging is not performed, a battery temperature detection power supply unit is used for detecting a battery temperature when the batterysupplies power, when a battery temperature is higher than a set threshold, a warning unit displays that the battery temperature is excessively high, a user is reminded to enter a power supply mode ofa temporary energy storage unit, power consumption application can be closed, a charge-discharge control module temporarily cuts off power supply and closes a power consumption assembly of the system,power supply of the temporary energy storage unit is switched, when that the battery temperature is lower than the set threshold is detected, power supply of the battery is restored, the charge-discharge detection unit detects that the mobile phone enters a charging state, power supply of the battery is cut off, AC power supply is directly used, meanwhile, the battery is charged, after an external AC input is removed, the unit is automatically switched to power supply of the battery. By the safe charge-discharge device, the battery loss can be reduced, and a potential risk caused by heat generation of the battery is prevented.

A bendable electric leakage protection power supply row socket belongs to the field of daily necessities, and includes an electric leakage protection device, more than two socket units and a connecting shaft for connecting the electric leakage protection device and the socket unit. The connection between them is movably connected through the connecting shaft, and the leakage protection device is composed of a power plug, a power cord, a push button switch, a leakage protector, an indicator light and a casing, and the power plug, the push button switch, the leakage protector, The indicator light is electrically connected through the power cord shown. The socket unit includes a five-hole socket and a socket housing. The five-hole socket is composed of a two-pole socket and a three-pole socket. The three-pole socket The upper hole of the socket is located in the middle of the two poles of the two-pole hole socket; the invention has simple and reasonable structure, good safety performance, low production cost, small space occupation, convenient use, convenient portability and strong practicability.

The invention relates to an electric connector. The electric connector comprises an insulation body, multiple conductive terminals which are fixedly held in the insulation body and are provided with contact portions and welding portions, and a shielding casing arranged outside the insulation body, wherein the conductive terminals comprise power source terminals, ground terminals and signal terminals, the conductive terminals comprise multiple first terminals and multiple second terminals, contact portions of the first terminals and the second terminals are arranged in two rows, welding portions of the first terminals and the second terminals are arranged in one row, and at least the welding portion of one signal terminal is arranged between one power source terminal and the welding portionof one ground terminal.

The invention, which belongs to the field of line protection, particularly relates to a fiber line protection method. The method employs an optical cable fiber distribution box including a box body, apower supply unit, separation units, a power unit, an exhausting unit, a carbon dioxide compression tank, a baffle plate and a sealing plate. Communication gas circuits are arranged inside the rightside of the upper wall of the box body and the right wall of the box body and enable the power unit and the carbon dioxide compression tank to be communicated. The power unit is fixed on the inner wall of the top of the box body. The exhausting unit is arranged on the inner wall of the left side of the top of the box body. The power supply unit is arranged on the outer wall of the upper part of the box body. The separation units are arranged at the inner walls of the left side and the right side of the box body. When a fire occurs, the separation units form separation for the inner wall of thebox body; and the baffle plate is fixedly connected with one separation unit. The baffle plate is arranged below the right side of the box body; and the sealing plate is fixedly connected with the baffle plate and is in contact with the inner wall of the right side of the box body. The power supply unit not only provides power but also plays a role in shading and thermal insulation. The separation units separate the inside of the box body to reduce the fire outbreak range and increase the fire extinguishing efficiency. With a sealing bar arranged at a box door, sealing and water prevention effects are realized.

The invention discloses a battery and a battery system. The battery comprises a packaging body, and a battery cell and an electrolyte which are packaged in the packaging body, wherein the battery cell comprises a positive plate, a diaphragm and a negative plate. The battery also comprises a heat exchange member, wherein the heat exchange member comprises an inner exchange part which is arranged in the packaging body and is in heat exchange cooperation with the battery cell, and an outer exchange part which is in heat exchange connection with the inner exchange part and extends out of the packaging body. The heat exchange member is arranged to exchange heat with the outside of the battery, so that the battery cell is cooled, and fire and explosion caused by overheating of the battery cell are avoided; and meanwhile, the heat exchange member can also be used for heating the battery cell when the battery works in a low-temperature environment, so that the service life of the battery is prolonged.

The invention relates to fireproof flannelette shell fabric capable of effectively preventing fabric from catching fire. The fireproof flannelette shell fabric comprises a spandex flannelette shell fabric body (1), wherein an anti-radiation layer (2) is arranged on the upper surface of the spandex flannelette shell fabric body; a wear-resistant layer (4) is arranged on the upper surface of the anti-radiation layer; and an antibacterial layer, a fireproof layer, a waterproof layer and a close fitting layer are sequentially arranged on the lower surface of the spandex flannelette shell fabric body. A lining fabric layer is arranged on the back of the close fitting layer and comprises warp yarns and weft yarns which are mutually interlaced; velveteen is interlaced between the warp yarns and the weft yarns; the warp yarns and the weft yarns are made from carbon fibers; the velveteen is made from cotton yarns; and a flame-retardant layer, a waterproof layer and an anti-static layer are arranged on the velveteen from inside to outside. The fireproof flannelette shell fabric has stereoscopic sensation and the functions of bacterium prevention, radiation resistance, fire prevention, water resistance, wear resistance and the like and is capable of effectively preventing the fabric from catching fire.

The invention relates to an oxygen-controlled roasting device and method for an activated carbon-containing carrier and a catalyst. An annular pipe for inputting nitrogen into a rotary kiln and a plurality of distribution pipes are arranged at the discharging end of the rotary kiln; the distribution pipes are straight pipes; the annular pipe is aring-shaped pipe; a plurality of air holes are formed in the circumferential surface of the annular pipe at intervals, the hole opening direction of the air holes is parallel to the kiln line of the rotary kiln; and at least two gas ejector pipes used for ejecting nitrogen to a material outlet are arranged at the discharging opening of the discharging end of the rotary kiln. Nitrogen protection is provided for the rotary kiln, so that the rotary kiln can perform roasting in a low-oxygen-concentration or oxygen-free environment, and the activated carbon-containing carrier or catalyst is prevented from being ignited and combusted at a high temperature; and meanwhile, by adjusting the frequency of an induced draft fan and a nitrogen inflow amount, the micro-positive pressure of a feeding end is stabilized to be 1-8 Pa, the micro-negative pressure of the discharging end is kept to be -1 - -5 Pa, and thus, oxygen is prevented from entering the rotary kiln from the feeding end; the nitrogen is sprayed at the position of the discharging opening, the oxygen is prevented from entering the rotary kiln from the discharging end; and continuous industrial production is achieved.

The invention discloses a liquid filling system for a free forging press, which belongs to the technical field of free forging presses and comprises a liquid filling oil tank positioned at the top of forging workshop equipment and a main oil tank positioned on the ground of a power room. An air filter is arranged on the main oil tank; the main oil tank is communicated with the liquid filling oil tank through an air pipeline; the main oil tank is communicated with the liquid-filled oil tank through an oil discharge pipeline; a valve is mounted on the oil discharge pipeline; the valve is a pneumatic stop valve. According to the invention, any liquid level height control of the liquid filling oil tank can be realized so as to meet the oil filling and discharging requirements under different production processes, and meanwhile, when danger occurs, the pneumatic stop valve can be quickly opened to quickly empty oil in the liquid filling oil tank so as to avoid fire; an intake and exhaust air filter of the liquid-filled oil tank is omitted, a special air pipe is added to be communicated with the main oil tank to achieve air pressure balance of the liquid-filled oil tank and the main oil tank, and oil discharge resistance caused by the vacuum trend generated when the liquid-filled oil tank discharges oil to the main oil tank and the pressurization trend generated when the oil enters the main oil tank is avoided.