117results about How to "Avoid fire risk" patented technology

The invention discloses a self-glued asphalt adhesive material, a preparation method of the self-glued asphalt adhesive material, and a self-glued asphalt waterproof coiled material. A raw material formula of the self-glued asphalt adhesive material comprises the following ingredients of petroleum asphalt, naphthenic oil, tackifying resin, butadiene styrene rubber and/or modified butadiene styrene rubber, polyethylene wax, elastomer polymers and filing materials. By using the high-initial-viscosity and high-heat-resistance self-glued asphalt adhesive material as a bonding layer for bonding the self-glued waterproof coiled material and a base layer (such as a roof); the polyethylene wax in the bonding layer and the petroleum asphalt take a crosslinking reaction, so that the heat resistance performance of the self-glued asphalt adhesive material is improved. The self-glued asphalt adhesive material has good bonding performance, and is fully bonded with the base layer, so that the bonding is firm; in addition, the heat resistance being higher than 90 DEG C can be born; the low-temperature flexibility reaches -30 DEG C; the self-glued asphalt adhesive material has high heat-resistance performance, so that the requirements of facade construction using the waterproof coiled material as the waterproof layer can be met; in addition, the softening overflowing of the self-glued asphalt adhesive material can be prevented. The waterproof requirements of the base layer in various climates can be almost met; the hot melting construction is not needed.

A rechargeable battery includes an electrode assembly having a first electrode and a second electrode, a first case housing the electrode assembly and electrically coupled to the first electrode, and a second case electrically insulated from the first case and housing the first case, wherein the second case is electrically coupled to the second electrode.

The invention relates to a building steel structure beam column assembly type rigid joint which is characterized in that splicing plates are interactively arranged on upper flanges and lower flanges of a cantilever beam and a frame beam, and the splicing plates on the two sides are connected with the beams by welding seams in a steel structure processing factory previously. During field mounting of the joint, the splicing plates firmly welded on the two sides serve as ear plates to allow a mounting beam section to be in place quickly; after being in place, the splicing plates are connected with the upper flange and the lower flange of the beam on the other side and spliced with a web plate by bolts; and the mounting of the beam column rigid joint is accomplished. The beam column joint is wholly spliced by the bolts in a mounting field, and is reasonable in structure, definite in force transmission, high in construction efficiency and good in safety; the field mounting is in place quickly; no welding is adopted; the mounting efficiency can be improved; the risk of a fire caused by the welding is avoided; and the joint is wholly assembled by the bolts in a construction field, so that a great convenience is brought to a construction site where the construction field condition is poor and the welding cannot be carried out conveniently.

A hair iron comprising a pair of openable/closable hair-sandwiching arms that each store in void spaces shielded by shielding members a heat-source plate and a hair-heating plate positioned adjacent to the heat-source plate and sandwiches hairs when the arms are closed; wherein the pair of arms are openably/closably connected on one end by a pivot, and spring pressure is used to maintain the pair or arms in opening directions in a normal condition; wherein the heating plates are installed so that they face each other; wherein tapered portions are provided in a base, on the void space side, of the heating plate, and a gasket is securely fitted in the formed tapered voids in order to improve the steam cutoff property of the void spaces; and wherein the temperature can be controlled easily at the operator's fingertips.

A laundry machine (100) is proposed. The laundry machine comprises a drum (115) for housing the laundry to be treated, an encasing portion (105,120) for encasing the drum (115), and a lighting apparatus (245) for illuminating the inside of the drum (115). The lighting apparatus (245) comprises one or more lighting devices (250) associated to the drum (115), and a power feeding assembly for power supplying said one or more lighting devices (250). In the solution according to one or more embodiments of the present invention, the power feeding assembly comprises an electro-magnetic apparatus (265) arranged for power supplying, at least partially contactless, said one or more lighting devices (250).

The invention relates to a campus dormitory electricity monitoring system based on NB-IOT communication and a control method thereof. The system includes an electric detection module, an electric circuit break module, an infrared temperature monitoring module, a smoke sensing module, a wireless communication module, a main controller and a monitoring center, wherein the electric detection module and the electric circuit break module employs integrated design, the electric detection module and the power circuit break module respectively achieve signal feedback with the main controller, the infrared temperature monitoring module and the main controller have signal feedback, the main controller sends a command to the electric circuit break module to control on/off according to a human body infrared signal and the duration, a student dormitory is monitored and controlled under the weak electricity environment, the human body pyrolysis infrared technology is adopted to detect people existence in the dormitory, for example, indoor monitoring systems monitor safety of electricity, if no one is in the dormitory, the dormitory is directly powered off, and the risk of fire caused by chargingmicro-power products such as mobile phones and laptops when no one in the dormitory can be eliminated.

The immersed liquid cooling heat dissipation module comprises a box body with an opening at the bottom, a liquid cooling plate for placing a battery module is arranged at the bottom of the box body, the liquid cooling plate and the box body form a closed structure, the box body is filled with a cooling liquid for immersing the battery module, and a liquid cooling medium is introduced into the liquid cooling plate. The box body is filled with the cooling liquid used for immersing the battery module, high safety and efficient heat dissipation performance are achieved, the battery module is directly cooled by arranging the liquid cooling plate on which the liquid cooling medium flows, and the heat dissipation capacity of the battery module is improved. The flow velocity of the liquid cooling medium of the liquid cooling plate is adjusted by monitoring the temperature of the battery, and the temperature of the battery is controlled within a reasonable working interval.

The invention discloses an automatic cotton laboratory sample compression forming device. The automatic cotton laboratory sample compression forming device comprises a base, a left box plate, a right box plate, a lower box door, an upper box door, crossbeams, an oil cylinder, a guide rod and a guide wheel, wherein the left box plate and the right box plate are arranged above the base, the lower box door and the upper box door which can be opened front and back are arranged on the left box plate and the right box plate, the crossbeams are arranged on the tops of the left box plate and the right box plate, the oil cylinder and the guide rod are arranged on the crossbeams, the guide wheel is matched with the guide rod, a main pressure device is arranged on the lower part of the oil cylinder, an upper pressure head is arranged on the lower part of the main pressure device, the guide rod penetrates through the guide wheel and the crossbeam and is then connected with the main pressure device, a lower pressure head is arranged on the upper part of the base, and the upper pressure head and the lower pressure head are matched with each other; the left box plate, the right box plate, the lower box door and the upper box door form a space capable of accommodating cotton. The automatic cotton laboratory sample compression forming device is relatively simple in structure, the remaining cotton samples after the inspection can be compressed into laboratory samples with certain specification, density and shape, the cotton sample processing way is in a mechanical mode instead of a manual operation mode, the working efficiency is effectively improved, and a positive role in better preventing the fire risk can be realized.

The invention discloses a rotary dehumidifier type condensation dehumidification device for metal armored equipment and a control method thereof. The device includes a rotary dehumidifier, a ventilation unit and an automatic condensation dehumidification controller; On the installed equipment, it is connected with the rotary dehumidifier through the air inlet pipe and the return air pipe; the device has a simple structure and a high degree of automation, which realizes the automatic remote control of the condensation of the metal armored equipment and greatly reduces the opening time of the dehumidification equipment. Avoid the fire risk caused by overheating of the dehumidification equipment inside the metal armored equipment; the internal humidity control of a single metal armored equipment is relatively uniform, and the humidity target value can be set arbitrarily, avoiding the phenomenon of uneven dehumidification inside the large-volume metal armored equipment , the dehumidification effect is good; the dehumidification process will not cause the internal temperature of the metal armored equipment to rise, avoiding the risk of excessive aging of the insulating material.

The invention relates to the field of brake systems and provides an electromagnetic actuation device suitable for a brake system. The electromagnetic actuation device comprises at least two fixed disks and at least one movable disk. The fixed disks are coaxial with the movable disks. Each movable disk is located between two adjacent fixed disks. Pairs of fixed disk iron cores are circumferentially disposed at intervals on each fixed disk. A fixed disk coil is wound on each fixed disk iron core. Each fixed disk coil is connected to an external power supply in a parallel manner. When the fixed disk coils are powered, polarity of two adjacent fixed disk iron cores is opposite and a magnetic field along different directions and perpendicular to a plane on which each fixed disk is positioned is generated. Movable disk iron cores corresponding to positions and number of the fixed disk iron cores are disposed on the movable disks. A movable disk coil is wound on each movable disk iron core along a radial direction of each movable disk. The movable disk coils are connected to external charging/power-utilizing parts. When the fixed disk coils are powered to generate magnetic fields and during rotation of the movable disks, induced current and electromagnetic fore which prevent the movable disks from rotating are generated in movable disk coils which emit heat, and kinetic energy needs to be overcome by the brake system is converted into electric energy, electromagnetic energy and heat energy.

The invention discloses a stable combustion combustor based on pre-combustion chamber temperature control and an operation method thereof. A primary air rotational flow device of the stable combustioncombustor is arranged at an inlet of a pre-combustion chamber, so that a wind-powder mixture generates strong rotational flow before entering the pre-combustion chamber to be combusted, and the low-load stable-combustion performance of the combustor is ensured. A direct-current center air duct is arranged at an inlet of the pre-combustion chamber, and the phenomena of coking, burning loss and thelike of the pre-combustion chamber under high loads can be avoided by adjusting the opening degree of direct-current center air. Secondary air with adjustable rotational flow intensity is arranged onthe outer side of a cavity of the pre-combustion chamber, mixing of the secondary air and air powder flow in the pre-combustion chamber is delayed, generation of nitric oxide is reduced, and meanwhile the low-load stable combustion performance and the coking and burning loss prevention performance of the combustor can be improved in an auxiliary mode by adjusting the rotational flow intensity ofthe secondary air. The deep peak regulation capacity of a coal-fired boiler can be effectively improved, and the coal quality adaptability of a deep peak regulation unit is broadened.

The invention provides an intelligent gas alarm device. The device comprises a control system which is connected with a detection system, a power supply system, a display system, a linkage system, analarm system and a communication system and used for controlling the whole intelligent gas alarm device. The detection system adopts two or more gas sensors arranged in parallel to ensure that the alarm device continues to work after one of the sensors fails, is used for detecting the gas concentration, is connected with the control system and sends the detected gas concentration value to the control system; the power supply system is used for supplying power to the whole intelligent gas alarm device; the display system comprises a state indicating lamp and a liquid crystal display screen; thelinkage system is connected with the power supply system and the control system, and the linkage system opens a window, closes a gas electromagnetic valve or closes an air switch according to an instruction of the control system and requirements; the alarm system comprises an LED flashing lamp, a buzzer and a voice alarm; and the communication system is used for enabling the intelligent gas alarmdevice to have a wireless communication function.

The invention relates to a concrete curing device and a curing method for winter construction in a cold region. During winter construction in the cold region, a current concrete curing measure is highin energy consumption, has potential safety hazard, and is difficult to fit for concrete curing in winter in the cold region. The curing device is a rectangular frame body sequentially enclosed by four side plates, wherein concrete is filled in the rectangular frame body; a top plate and a bottom plate are horizontally arranged on the top part and the bottom part of the rectangular frame; a phase-change material layer is arranged on the outer wall of a template frame and is an electrified and heat-storage layer body; and a heat insulating layer is arranged on the outer wall of the phase-change material layer. According to the method provided by the invention, the phase-change material layer located between the template frame and the heat-insulating layer transfers heat to the concrete through the template frame, and continuously heats and cures the concrete through a repetitive heating and heat releasing way. The concrete curing device and the curing method for winter construction inthe cold region provided by the invention are used for concrete curing in winter site construction in the cold region.

The invention discloses a boiler stable combustion control method for a deep peak regulation working condition of a coal-fired unit. The boiler stable combustion control method comprises the following steps that the coal supply quantity entering a boiler hearth is controlled through a coal feeder frequency converter instruction (1), the primary air quantity required for conveying pulverized coal is controlled through a coal grinding mill hot air door baffle instruction (2), the secondary air quantity entering the boiler hearth is controlled through an air feeder moving blade instruction (3), and after the unit enters the deep peak regulation working condition, an emergency steady-combustion coal quantity operation loop (4) is additionally arranged in front of a coal feeder instruction operation loop (7) for controlling the coal feeding quantity entering the boiler hearth; and an emergency steady-combustion air volume calculation loop (50) is added in front of a air feeder moving blade instruction calculation loop (12). Through an arranged judgment threshold device, the sensitivity of entering the deep peak regulation working condition is improved, the combustion working condition of a boiler can be rapidly adjusted through reasonable cooperative processing distribution, the combustion stability of the boiler in the critical state is improved, the fire extinguishing risk of the boiler is avoided, and long-term safe and stable operation of the unit is maintained.

The invention relates to a surge protection device with high breaking capacity; the surge protection device has a shell that is provided with at least two extraction electrodes, and a voltage limitingdevice and a thermal tripping mechanism that are installed in the shell. The thermal tripping mechanism comprises a fixed assembly, a movable assembly and a thermal triggering device; the fixed assembly and the movable assembly form a plurality of displacement switches which are arranged in series, and the thermal triggering device and the movable assembly are arranged in a linkage mode, so thatthe problems that a thermal protection device of an existing surge protection device does not have an overcurrent protection function and the thermal protection device is prone to false tripping or advanced tripping when surge current flows through are solved.

The invention relates to a thermal insulation pipe joint structure and a construction method of a thermal insulation pipe joint. The thermal insulation pipe joint structure is used for connection of prefabricated thermal insulation pipes and comprises a glass fiber reinforced plastic sleeve, manually painted glass fiber reinforced plastics and a joint thermal insulation layer, wherein the two ends of the glass fiber reinforced plastic sleeve are coated by the manually painted glass fiber reinforced plastics, and the joint thermal insulation layer is formed inside the glass fiber reinforced plastic sleeve. The construction method of the thermal insulation pipe joint comprises the following steps: step 1, the glass fiber reinforced plastic sleeve is provided, and the joint of two prefabricated thermal insulation pipes is sleeved with the glass fiber reinforced plastic sleeve, wherein the two prefabricated thermal insulation pipes are connected in advance; step 2, the two ends of the glass fiber reinforced plastic sleeve are coated by the manually painted glass fiber reinforced plastics, wherein the manually painted glass fiber reinforced plastics extend to outer protective layers of the prefabricated thermal insulation pipes; step 3, the joint thermal insulation layer is formed in the glass fiber reinforced plastic sleeve; step 4, filling holes and exhaust holes in the glass fiber reinforced plastic sleeve are sealed. According to the thermal insulation pipe joint structure and the construction method of the thermal insulation pipe joint, no naked flame is needed for site operation, and therefore the fire risk caused by naked flames in a construction process in a limited space can be effectively eradicated.

The invention provides an opposite spraying type impinging stream oily fume purification device. The device comprises a purification tank and a water storage tank, wherein one side of the purification tank is welded with one side of the water storage tank through a pipeline; an oily fume gas inlet and a purified gas discharge port are formed in the other side of the purification tank, and the purified gas discharge port is located above the oily fume gas inlet; a purification tank drainage port is formed in the bottom of the purification tank, an oily fume gas and water impinging area is formed in the middle of the purification tank, a first jet pipe and a second jet pipe which are embedded into each other are arranged in the impinging area, the first jet pipe and the second jet pipe are oppositely arranged in the same plane, distributed in a staggered manner and both provided with jet holes, one side of the first jet pipe is connected with an oily fume inlet, the other side of the first jet pipe is sealed through a pipeline, one side of the second jet pipe is connected with a water storage tank water outlet of the water storage tank, and the other side of the second jet pipe is sealed through a pipeline. The opposite spraying type impinging stream oily fume purification device has the benefits as follows: the flue gas temperature and the flue gas emission concentration in a gas duct are remarkably reduced; the fire risk is reduced, and the air quality is improved; the device is simple and convenient to mount, maintain and operate.

A method for producing a hydrophobic element is disclosed and includes the following steps: a) preparing a mixture of water and an organic material from sustainably renewable resources, b) moulding the mixture prepared in step a) to obtain a moulded element, c) drying and densifying the moulded element obtained in step b) to obtain a dried and densified element-, and d) impregnating to the core the dried and densified element obtained in step c) with a binder composed of organic materials from sustainably renewable resources. A covering hydrophobic element containing more than 90%, and preferably more than 99%, of an organic material from sustainably renewable resources is also disclosed.

Disclosed is a system for interrupting an electric power of an outlet or closing a gas valve through detection of the absence of a user. The system includes a signal transmission device installed on an outside of the outlet and a gas valve device. The signal transmission device detects the existence of the user to output the gas valve device receive the control signal to control the flow of connected to signal an electric power or gas.