44results about How to "Avoid fire risk" patented technology

The invention relates to the technical field of sponge cutting, and discloses a self-adjusting protection system for intelligent monitoring of sponge cutting, which realizes real-time monitoring and intelligent regulation of the cutting process, and greatly improves the cutting precision and safety. Physical parameters and image information in the cutting process are collected in real time through a monitoring system, and a control unit can quickly process data and predict possible abnormal behaviors, so that a control strategy is generated and adjusted in time; the execution mechanism accurately executes protection actions according to the strategies, so that the problems of fire risk caused by too high cutting temperature, sponge damage caused by cutting deviation and the like are effectively avoided; the sponge cutting efficiency and the product quality are improved, the production cost and the safety risk are reduced, and sponge, equipment and personnel are protected.

The invention relates to the technical field of propylene dimerization, in particular to a method and device for preparing 4-methyl-1-pentene through propylene dimerization, and the method comprises the following steps: (1) dehydrating and deoxidizing a raw material containing propylene, a coking inhibitor and a diluent to obtain a treated raw material; (2) contacting the treated raw material with a catalyst, carrying out dimerization reaction to obtain a reaction material, carrying out heat treatment on part of the reaction material, returning, and carrying out the dimerization reaction; (3) carrying out rectification separation on the rest reaction material to obtain a light component, 4-methyl-1-pentene and a heavy component; wherein the total temperature rise delta T of the dimerization reaction is regulated and controlled through the mass ratio of the diluent to the propylene in the raw materials and the recycle ratio of the reaction materials, and the recycle ratio of the reaction materials is the mass ratio of the part of the reaction materials to the propylene in the raw materials. According to the method, the selectivity of the 4-methyl-1-pentene is effectively improved.

The invention discloses an intelligent emulsion pump station, and relates to the technical field of emulsion pump stations, the intelligent emulsion pump station comprises a base, the top surface of the base is fixedly provided with a box body, the surface of the base is fixedly provided with an emulsion pump, the output end of the emulsion pump is provided with a connecting pipe A, and the output end of the emulsion pump is provided with a connecting pipe B; a water tank is fixedly mounted on the top surface of the box body, an emulsified oil tank is fixedly mounted in the box body, and a water pump is fixedly mounted on the top surface of the box body; according to the device, emulsified oil leaked from the emulsified oil tank and the connecting pipe B is stored through the oil storage tank, so that fire or explosion caused by leakage of the emulsified oil is prevented, the emulsified oil tank is protected through opening and closing of the baffle, and the situation that the emulsified oil tank is damaged due to collision is avoided; and meanwhile, the scraping plate A and the scraping plate B are driven to clean the oil storage tank, and emulsified oil at the leakage position is discharged from the oil storage tank and the oil discharging tank.

The invention provides a photovoltaic sunshade shed. The photovoltaic sunshade comprises a frame structure and a photovoltaic module. The frame structure comprises a plurality of frame assemblies and a plurality of stand column assemblies, each frame assembly comprises a frame body provided with a cavity, the upper end of each stand column assembly is used for connecting two adjacent frame assemblies, and the lower end of each stand column assembly is used for being connected with a to-be-fixed face. The photovoltaic assembly is installed in the frame structure and comprises a photovoltaic piece, the photovoltaic piece comprises a photovoltaic panel and a connector extending out of the photovoltaic panel, the connector of the photovoltaic assembly is electrically connected through an electric connection assembly, and the electric connection assembly penetrates into the cavity of the frame body and extends to the cavity of the stand column assembly.

The invention discloses a portable tool for rapidly repairing a cable sheath, and belongs to the technical field of cable repairing, the portable tool comprises a repairing mold, the repairing mold can repair the cable sheath, the repairing mold comprises two arched mold bodies, a heating device and a control device, and the heating device is arranged on the mold bodies. After the two die bodies are combined, a cable needing to be repaired can be fixed; the heating device comprises a heating bag and a thermocouple temperature measuring probe, the heating bag is arranged on the outer side of the mold body, the thermocouple temperature measuring probe is arranged in the mold body, and the thermocouple temperature measuring probe can detect the surface temperature of the cable fixed by the mold body; the control device can control the heating device. According to the cable repairing mold, the mold body can ensure that the outer diameter of a repaired cable is consistent with the outer diameter of an original cable, the heating device is arranged on the outer side of the mold body, the heating device can ensure that the mold body is heated consistently, and the cable repairing quality at the damaged position in the mold body is ensured.

The invention relates to the technical field of goaf fire monitoring, in particular to a monitoring device for goaf fire after gas-liquid two-phase flow prevention and drainage. The invention provides a gas-liquid two-phase flow control post-drainage goaf fire monitoring device which can reduce the concentration of inflammable gas in a goaf and avoid potential fire and explosion risks. A gas-liquid two-phase flow control post-drainage goaf fire monitoring device comprises a mounting block, clamping plates, threaded rods and the like, the left and right parts of the mounting block are slidably connected with the clamping plates, and the upper sides of the left and right parts of the mounting block are rotatably connected with the threaded rods. When the gas detector monitors that the concentration of inflammable gas in the goaf is high, water is fed into the water storage cylinder through the water receiving pipe, then the water is atomized and sprayed out through the spray head, the inflammable gas is diluted and cooled through water mist, and the effects that the concentration of the inflammable gas in the goaf can be reduced, and potential fire and explosion risks are avoided are achieved.

This utility model discloses an automatic graphite block adjusting lubrication device, relating to the field of mechanical engineering lubrication technology. It includes a frame adjusting screw, a locking nut, an adjusting nut, a sleeve, a guide shaft, a bushing, a push plate, a spring sleeve, a spring, a housing assembly, and a cover plate. The housing assembly is used to fix the sleeve, push plate, and bushing. The graphite block is placed on the push plate, the cover plate is closed, and it is secured with bolts. The adjusting nut is rotated to allow the graphite block to press against the part requiring lubrication, thus applying force to the spring. Finally, the locking nut is tightened to prevent the adjusting nut from loosening and causing the spring to lose force. This automatic graphite block adjusting lubrication device is not only suitable for large rotary kilns but also for equipment requiring lubrication under extreme high temperature, low temperature, and humid conditions. This device is safe and reliable, solving equipment failures caused by improper lubrication in large rotary kilns and reducing economic and manpower losses during maintenance.

The utility model provides a battery, a battery pack and an energy storage system, and belongs to the technical field of batteries. A battery cover plate and a battery shell of the battery are connected and matched to form a closed cavity for accommodating a battery cell. The battery cover plate comprises a cover plate and an insulating base plate which are laminated, a valve hole penetrating through the cover plate and the insulating base plate, and an anti-explosion valve for sealing the valve hole, the explosion-proof valve comprises a valve plate and an insulating fireproof layer which are sequentially distributed along the axis direction of the valve hole, the insulating fireproof layer is closer to the battery core relative to the valve plate, the insulating fireproof layer is provided with a tearing line, the tearing line comprises a plurality of holes which are arranged at intervals, and the insulating fireproof layer is a fireproof crack piece which can be cracked based on the tearing line and can be expanded outwards along the radial direction. And the fireproof splinters can cover metal at the valve hole when being unfolded, which comprises at least one of the inner wall of the valve hole, the plate surface of the cover plate located at the outer side of the valve hole and the rupture valve plate, so that the risk of fire caused by friction between the active substance and the metal at the valve hole is reduced, and the thermal runaway of the aggravated battery cell is avoided.

The flame-retardant piezoresistor assembly comprises a base, a fixed conducting strip, an elastic conducting strip and a piezoresistor chip, a first piezoresistor conducting electrode and a second piezoresistor conducting electrode are arranged at the two ends of the piezoresistor chip respectively, and the lower end of the fixed conducting strip is fixed to the base; the upper end of the fixed conducting strip is connected with the first piezoresistor conducting electrode, the lower end of the elastic conducting strip is fixed on the base, and the elastic conducting strip has outward elastic force, so that the upper end of the elastic conducting strip is not connected with the second piezoresistor conducting electrode in a natural state that the lower end of the elastic conducting strip is fixed on the base; the upper end of the elastic conducting strip is connected with the second piezoresistor conducting electrode through metal welding, so that when the piezoresistor chip is in thermal runaway, the welding metal is melted, the elastic conducting strip rebounds outwards and is separated from the second piezoresistor conducting electrode, the electric connection between the piezoresistor chip and the second piezoresistor conducting electrode is cut off, and the piezoresistor chip stops heating in a power-off state; and the fire risk caused by ignition of the potting glue is avoided.

The utility model discloses an electric heat shrinkable sleeve heating device which comprises a handheld grab handle, a power line is connected to the right end position of the handheld grab handle, a rotatable plate is connected to the inner position of a threaded cylinder in a sleeved mode, an electric heating wire is adopted for heating, explosion and fire risks possibly caused when open fire exists are avoided, and the electric heat shrinkable sleeve heating device is convenient to use. The safety of a working place is greatly improved, a worker can easily control the heating work by holding the grab handle, the heating temperature and time can be accurately controlled, the heating effect and quality of the thermal shrinkage belt are ensured, and compared with a traditional burning heating mode, the electric heating wire heating mode is more environmentally friendly, harmful gas and smoke dust cannot be generated, meanwhile, more energy is saved, and the working efficiency is improved. The device adopts an external 220V alternating current power supply, is simple and convenient to operate, does not need special fuel or equipment, reduces the operation difficulty of constructors, and can effectively avoid electric shock accidents and guarantee the personal safety of the constructors due to the fact that the device is subjected to electric leakage protection.

The utility model relates to the technical field of DC power supplies, and discloses an industrial special isolation DC power supply with overload protection, which comprises a power box and an overload protection module, a fan is arranged on the plane of one side of the power box perpendicular to the ground, strip-shaped grooves are arranged on the planes of the other three sides of the power box perpendicular to the ground, and the overload protection module is arranged in the strip-shaped grooves. Wherein a display screen, a button, an adjusting knob and an output interface are arranged on the upper portion of the front face, the output interface is electrically connected with a circuit integration module in the power box through a wire, and the circuit integration module comprises an input filtering module, an AC / DC conversion module, an isolation transformer, an overload protection module and a voltage stabilization output module. The overload protection module is used for monitoring output current in real time and cutting off power supply when the output current exceeds a rated value, and through the arrangement of the overload protection module, when the circuit current exceeds a set threshold value, the power supply is automatically cut off, so that equipment damage or fire risk is prevented, and the safety of the power supply module and load equipment under an abnormal working condition is ensured.

The utility model provides an antistatic protective film which comprises a protective film and a conductive mechanism, and the conductive mechanism comprises a fiber net, a plurality of metal sheets, four connecting rings, four wires and four grounding blocks. Wherein the fiber net is arranged on the bottom wall of the protective film; the plurality of metal sheets are respectively arranged on the bottom wall of the fiber net; the four connecting rings penetrate through the four corners of the fiber net correspondingly and are connected with the four corners of the fiber net correspondingly. The four wires are respectively connected with the corresponding connecting rings, and the four grounding blocks are respectively connected with the other ends of the corresponding wires. According to the antistatic protective film disclosed by the embodiment of the utility model, the conductive fiber net is compounded with the protective film base material in the manufacturing stage of the protective film, so that static electricity is transmitted to the wire through the conductive fiber net and then is conducted to the ground through the wire, and the risk that dust is adsorbed by the static electricity and a fire disaster is caused is effectively avoided.

This utility model discloses a dust collection device for cutting building decoration materials, including a debris collection device and a high-pressure blower. The debris collection device includes a collection bucket and a second air inlet pipe. A debris baffle is provided inside the collection bucket. An air inlet hole is formed through one side of the top of the debris baffle. Air outlet holes are uniformly formed around the air inlet hole at the top of the debris baffle. Limiting notches are uniformly formed on the outer side of the debris baffle. A base plate is fixedly connected to the bottom end of the second air inlet pipe, and an exhaust pipe is uniformly fixedly connected to the top of the base plate. A top connecting plate is fixedly installed at the top of the second air inlet pipe. This utility model effectively solves the problem of difficult high-temperature handling of metal cutting debris through an innovative design of water-cooled dust suppression and multi-stage interception. It utilizes the fine bubbles generated by the exhaust pipe to extend the gas-liquid contact time, combined with the debris baffle forcing the debris to collide and sink multiple times, rapidly cooling the high-temperature debris.

The invention belongs to the technical field of aqueous batteries, and discloses a preparation method of an ant nest-shaped carbon material and a zinc-iodine soft package battery. The preparation method comprises the following steps: (1) preparing a ZIF-8 material from zinc nitrate hexahydrate and 2-methylimidazole; (2) calcining the material prepared in the step (1) to obtain an ant nest-shaped carbon material; the zinc-iodine soft package battery comprises a zinc foil negative electrode, an ant nest-shaped carbon material positive electrode, a glass fiber diaphragm and an electrolyte, the obtained ant nest-shaped carbon material has a high specific surface area and a rich pore structure, can effectively bear and limit an iodine active substance, and improves the effective utilization rate of an iodine simple substance; the dissolution and diffusion of intermediate product polyiodide ions can be limited, and the shuttle effect is inhibited; the price is low, the preparation method is simple and convenient, and the repeatability is high; and the aqueous electrolyte and the graphite paper current collector are adopted, so that dangerous conditions such as combustion or explosion and the like are not easy to occur. And meanwhile, the application of the graphite paper current collector shows the trend of increasing the energy density.

The invention relates to the field of coal mining experiment devices, in particular to a hydraulic support of a pneumatic push rod model and a test method.The hydraulic support of the pneumatic push rod model comprises a support base, a connecting rod set is installed at one end of the support base, and the other end of the connecting rod set is fixedly connected with a support shield beam; a support jack is hinged between the support top beam and the support shield beam, a support side protection plate is hinged to the end, away from the support shield beam, of the support top beam, a pneumatic push rod telescopic rod set is hinged between the support top beam and the support base, and pneumatic push rod telescopic rods are communicated with an air source device. A control valve is communicated between the pneumatic push rod telescopic rod set and the air source device, and the air source device is an electric air pump. The support designed by the invention can be quickly assembled, is wide in adaptability and light in weight, and brings great convenience to popularization of tests.

The utility model discloses a smokeless ashtray, which relates to the technical field of articles for daily use, and comprises an ashtray body, at least three cigarette clamping grooves are arranged at the edge part of the opening of the ashtray body, and the cigarette clamping grooves are uniformly distributed along the edge part of the opening of the ashtray body in the circumferential direction; and a cigarette end oxygen-free fire extinguishing cylinder for inserting a cigarette is vertically arranged at the bottom in the ashtray body. The cigarette end can be stably clamped on the edge of the ashtray opening and prevented from sliding or toppling over in the placing process, and sparks of the cigarette end can be quickly and effectively extinguished by inserting the cigarette end into the oxygen-free fire extinguishing cylinder for the cigarette end. The whole structure is simple and practical, and safer and more convenient use experience is provided.

The utility model relates to an airport deinsectization device which comprises a top plate 10, a containing box 20, a deinsectization lamp 30 and a deinsectization cage 40, the deinsectization lamp is installed on the top plate 10, the containing box 20 is arranged below the top plate 10, and the deinsectization cage 40 is arranged between the top plate 10 and the containing box 20. The insect killing lamps comprise a black light insect killing lamp with the wavelength of 320 nm to 390 nm, a blue light insect killing lamp with the wavelength of 350 nm to 490 nm, a yellow light insect killing lamp with the wavelength of 625 nm to 670 nm, a green light insect killing lamp with the wavelength of 555 nm to 610 nm and a red light insect killing lamp with the wavelength of 500 nm to 565 nm. The insecticidal lamp can meet the insecticidal requirements in most time periods and attract and kill various insects. A metal structure is adopted, fire risks can be avoided, a stable support and a connecting structure are adopted, and hidden dangers such as FOD are reduced.

This invention relates to the field of motor technology, and in particular to a carbon brush cleaning and cooling device for motors, comprising a fan, at least one air duct, and a fixing assembly. The air duct is mounted above the motor carbon brush assembly, with one end serving as an air inlet and the other end closed. Several ventilation holes facing the carbon brushes are provided at the bottom of the air duct. The fan's outlet is connected to the air inlet to supply cooling air to the air duct. The fixing assembly is connected to both the air duct and the motor body, detachably securing the air duct to the motor body. This invention features a simple structure, small footprint, and detachable installation on the motor body via the fixing assembly, requiring no modification to existing equipment. It is suitable for various exciters, back-pressure generators, and other motors, offering convenient installation and maintenance, and providing both cleaning and cooling functions.

This utility model relates to the field of pallet technology, and in particular to a fireproof and flame-retardant pallet, comprising a base plate, three side plates on the upper side of the base plate, a support plate on the upper side of the side plates, a flame-retardant and fireproof component one on the upper side of the support plate, and a flame-retardant and fireproof component two on one side of the side plates. The outer sides of the base plate, side plates, and support plate are coated with a fire-retardant coating. This utility model has excellent fireproof and flame-retardant performance: by setting the flame-retardant and fireproof component one on the upper side of the support plate and the flame-retardant and fireproof component two on one side of the side plates, the double flame-retardant design effectively improves the fire resistance of the pallet. The flame-retardant component one and flame-retardant component two are respectively filled with flame-retardant element one and flame-retardant element two, which can effectively delay the spread of fire and reduce fire losses in the event of a fire.

The invention relates to the technical field of cupping, and discloses a multifunctional cupping moving device which comprises a shell and a cup body, a vacuum pump is arranged on the shell, a containing groove allowing the cup body to be inserted is formed in the shell, a connecting pipeline communicated with the vacuum pump is arranged on the shell, the connecting pipeline is communicated with the containing groove, a through hole is formed in the cup body, and the through hole is communicated with the containing groove. A negative pressure strip is connected to the through hole in a sliding manner; when negative pressure is formed in the tank body, the penetrating hole is blocked by the negative pressure strip, the vacuum pump adsorbs air in the tank body through the connecting pipeline, the negative pressure is formed in the tank body, the tank body can be adsorbed to the skin surface, workers do not need to manually ignite and extinguish fire, and the adsorption operation of the tank body is easier; a worker controls the vacuum pump to form negative pressure in the cup body, the worker does not need to treat flames after cupping, the problem of flame treatment after cupping is avoided, and therefore the risk of fire hazards is avoided.

The invention provides an air conditioner refrigerant leakage fault protection device, a control method and an air conditioner, the device comprises a refrigerant leakage sensor and a mainboard, the mainboard is provided with a first relay and a wiring board, a Y terminal of the refrigerant leakage sensor is connected with a Y terminal on the wiring board, and a Y terminal of the first relay is connected with a Y terminal on the wiring board; a Y terminal on the wiring board is connected with a Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected with a Y terminal of an air conditioner outdoor unit; when the refrigerant leakage sensor detects that refrigerant leakage happens to an air conditioner indoor unit, a Y signal is sent to the main board through a Y terminal of the refrigerant leakage sensor, and after the main board receives the Y signal, the first relay is controlled to be disconnected, so that a Y1 terminal on the main board cannot continue to send the Y signal, and therefore the air conditioner outdoor unit is controlled to stop. Therefore, the refrigerant leakage rate is effectively reduced, and the fire risk is avoided.

The invention provides an air conditioner electric heating control fault recognition system and an air conditioner thereof, and belongs to the technical field of air conditioners. The system fault detection unit is connected with the microprocessor and is used for detecting the working state of the electric heater after the microprocessor sends out a disconnection instruction and judging whether the relay has a contact adhesion fault according to the working state of the electric heater; wherein the fault detection unit can be a voltage detection module, and voltages at the two ends of the electric heater are safely collected through a differential amplification circuit for direct judgment; or an inner disc temperature sensor can be reused, and indirect judgment is carried out through abnormal temperature rise of the evaporator; a power detection module can also be used for analyzing the power change of the whole machine; on the basis of maintaining a low-cost framework of a single relay, real-time and accurate identification of electric heating control faults is realized, a user is prompted through sound-light alarm, potential safety hazards caused by relay faults are effectively avoided, and the method has the advantages of being low in cost, high in reliability and easy to implement.

The utility model relates to digital communication cable technical field, and disclose a kind of high-strength armoured digital communication cable and rubber sheath processing device, and the communication cable includes wear-resistant rubber sleeve, wear-resistant rubber sleeve inside fixedly connected with outer protective layer, the inside of outer protective layer is provided with protective steel wire, the inside of protective steel wire is provided with heat dissipation layer.The rubber sheath processing device, including support base, incoming line port and extrusion assembly, the top of support base is fixedly connected with processing body, and extrusion connecting block that cable sheath processing is guided is provided on processing body.By cable is passed through the inside of incoming line port limiting line holder and outgoing line extrusion rubber seat and is worn through outgoing line port, the electric telescopic rod is driven by the pneumatic telescopic rod of being set, so that its limiting push block pushes rubber and covers on cable, the processing of the rubber sheath of multiple cables is satisfied by the setting of several incoming line ports and outgoing line extrusion rubber seat, large-scale continuous production is realized, and the utilization of equipment is improved.

The invention discloses a special fire extinguishing agent for a lithium battery and application thereof, and belongs to the field of fire extinguishing agents. The agent is prepared from the following components in percentage by mass: 0.15% of potassium dodecyl benzene sulfonate, 0.1% of coconut oil fatty acid diethanolamide, 0.04% of ethylene glycol, 0.01% of sodium acetate, 0.02% of glycerol, 0.01% of EDTA (Ethylene Diamine Tetraacetic Acid) disodium and the balance of deionized water. The permeation and spreadability of the agent are enhanced through the synergistic effect of the composite surfactant, the lithium battery thermal runaway fire is efficiently extinguished in combination with the low-temperature stability and flame suppression of ethylene glycol and the HF neutralizing capacity of sodium acetate, open fire can be extinguished within 30 seconds without reburning, and the generation amount of HF is lower than 1 ppm; meanwhile, the specific resistance of the agent is larger than 10 M omega.cm, use is safe, damage to the battery is small, and the agent is suitable for lithium battery fire prevention and control of electric automobiles, energy storage power stations and other scenes.

The utility model discloses a gas monitoring alarm, which comprises a shell, a gas inlet, a gas outlet and a gas outlet, wherein the outer side of the shell is provided with a lower vent hole and an upper vent hole; the circuit board is arranged in the shell, and a smell sensor, an MCU module and a timer are arranged on the outer side of the circuit board; the cleaning device comprises a shell and a dredging assembly, the dredging assembly is arranged in the shell, the dredging assembly comprises a connecting plate arranged in the shell in a sliding mode and an electromagnetic assembly driving the connecting plate, and the cleaning device has the advantages that through the arrangement of an upper cleaning plate and a lower cleaning plate, under the action of the electromagnetic assembly and a timer, vent holes can be automatically cleaned at regular intervals; the requirement of manual maintenance is reduced, and the sensitivity and the accuracy of the sensor are ensured not to be reduced due to the blockage of the vent holes; by keeping the ventilation holes clean, it is ensured that outside air can freely flow in, so that timely and accurate gas detection can be conducted, and potential fire hazards and explosion risks can be prevented.

The invention discloses an insect trapping and killing device and method for landscaping, and relates to the technical field of garden deinsectization. The insect trapping and killing device for landscaping comprises a top cover module, a killing module and a cleaning module, the killing module comprises a second shell and a trapping light source; the trapping light source is arranged in an inner cavity of the second shell and is connected with the first shell; a first conductive wire and a second conductive wire are arranged on the periphery of the outer side wall of the second shell; the cleaning module comprises an adaptive rod arranged on the outer side wall of the second shell. The insect trapping device is simple in structure and reliable in function, the killing module can trap and kill insects, and when the adaptive rod rotates, the bristles on the adaptive rod can sweep off insect corpses adhering to the killing module, so that the problem that the insect corpses shield trapping light, the first conductive wire and the second conductive wire is avoided, and the insect trapping device keeps a good trapping and killing effect.

The invention provides a switching power supply circuit with higher reliability, which comprises a primary side main control circuit, a secondary side main control circuit and an isolation communication module, and is characterized in that the primary side main control circuit comprises a first control module, a PFC (Power Factor Correction) voltage regulation output circuit, a second conversion module and a PFC controller; the secondary side main control circuit comprises a second control module, an indoor and outdoor power supply judgment module and an output voltage and current detection module, the indoor and outdoor power supply judgment module and the output voltage and current detection module are connected with the second control module, and the PFC controller controls the PFC voltage regulation output circuit to output stable conversion voltage. The second control module controls the output of the second conversion module according to a detection value of the output voltage and current detection module to realize closed-loop control of a voltage and current loop, the second control module obtains a detection result of the indoor and outdoor power supply judgment module, and when power is supplied to an indoor power supply line, the second control module controls the output of the second conversion module to realize closed-loop control of the voltage and current loop. The second control module controls current derating output. According to the invention, the safety of electricity utilization can be improved.

This invention provides a lightweight circuit breaker operating mechanism, relating to the field of circuit breaker technology. The lightweight circuit breaker operating mechanism includes a circuit breaker housing, inside which a circuit-breaking mechanism is disposed. The circuit-breaking mechanism includes a rotating shaft rotatably disposed inside the circuit breaker housing, a rotating plate fixedly connected to the outer side of the rotating shaft, a first connecting rod hinged to one side of the rotating plate, and a handle push rod hinged to one side of the first connecting rod. The rotating shaft is fixedly connected inside the circuit breaker housing, the handle push rod is rotatably connected to the rotating shaft, an armature is fixedly disposed on the inner side of the handle push rod, and a permanent magnet is fixedly disposed on the outer side of the circuit breaker housing. A spring is disposed on the outer side of the rotating shaft, with one end of the spring fixedly connected to the rotating shaft. In this invention, while the moving contact gains power and separates from the outer side of the stationary contact, the stationary contact can undergo a small range of displacement. Furthermore, the tension generated when the spring contracts can accelerate the movement of the moving and stationary contacts, thereby improving the circuit breaker's breaking speed.

The invention discloses an anti-deflagration battery compartment of a hybrid power steamship, and relates to the technical field of marine power battery compartments, the anti-deflagration battery compartment comprises an energy storage chamber, a control power supply chamber and an electric control chamber which are mutually independent at intervals, each compartment is provided with an independent door capable of being automatically closed, the energy storage chamber is provided with a battery pack, and the control power supply chamber is provided with a standby battery; the electric control room is provided with an electric element, and a temperature control unit, a fire sensing mechanism of a fire control unit, a fire extinguishing suction filtration mechanism and a polling fool-proof unit are arranged, so that a multi-protection mechanism and intelligent control of fire staged treatment and polling multi-stage fool-proof are realized, and the use safety of the power battery on a ship is effectively improved; the problem that the safety of the steamship is threatened due to detonation of the battery on the steamship is solved, equipment maintenance, inspection and emergency response mechanisms are optimized, and powerful technical support and safety guarantee are provided for safe and stable operation of the hybrid steamship.

The application provides an arc heater ballast resistor fireproof fixing device. The arc heater ballast resistor fireproof fixing device comprises a metal frame and a ceramic fixing assembly for fixing the ballast resistor on the metal frame, the ceramic fixing assembly comprises a first ceramic fixing piece, a second ceramic fixing piece and a ceramic buckle, the ballast resistor has a bending part and a connecting part connected with the bending part, the metal frame has a hollow part corresponding to the bending part, the first ceramic fixing piece is fixed in the hollow part of the metal frame, the second ceramic fixing piece is fixed on the metal frame, and the bending part and the connecting part of the ballast resistor are fixed on the first ceramic fixing piece and the second ceramic fixing piece through the ceramic buckle respectively. The arc heater ballast resistor fireproof fixing device solves the fire risk caused by the sharp rise of the surface temperature of the ballast resistor under the abnormal condition of large current or cooling water supply, and has the advantages of simple structure, light weight and high reliability.