45results about How to "Achieve explosion-proof function" patented technology

The invention discloses an intelligent well lid. The intelligent well lid comprises a well lid body and further comprises a test device, a cover plate and hook holes, wherein the test device is arranged on the lower side of the well lid body and comprises an instrument box, an instrument box upper cover, a battery box, a master control printed board, a gas sensor, a wireless communication device and a first sealing ring. The intelligent well lid further comprises a first anti-theft device and a second anti-theft device. The intelligent well lid has the advantages that the monitoring speed of a natural well is increased, the wireless communication device is internally integrated in the well lid, the maximum signal receiving strength is obtained, and data communication reliability is improved greatly; the compact large-capacity battery box is adopted, and the problem that a detection device is large in power consumption is solved; the devices on the well lid are arranged compactly, firmly and conveniently, and the anti-explosion function of the overall well lid is achieved; all the devices are integrally arranged on the well lid, and maintenance of the devices is facilitated for operation staff; the double-anti-theft devices are adopted for the well lid, and the difficulty in opening the well lid illegally is further increased.

The invention discloses a gas detection alarm which comprises an upper cover, a lower shell, a sensor seat, a sensor, an alarm connecting piece, an alarm and a processing circuit; threaded holes in corresponding positions are arranged around the upper cover and the lower shell; the upper cover and the lower shell are fastened into an explosion-proof outer shell through bolts in the threaded holes; the side surface of the lower shell is respectively provided with the sensor seat and the alarm connecting piece which are communicated with the explosion-proof outer shell; the sensor is arranged in the sensor seat; the sensor seat is connected to a sensor breathing apparatus; an explosion-proof piece and a breathing port are arranged in the sensor breathing apparatus; the alarm connecting piece is connected to the alarm; the explosion-proof piece is arranged in the alarm; and the processing circuit is electrically connected between the sensor and the alarm, and is used for receiving the electric signals of the sensor and triggering the alarm.

The efficient rectifying tower for chemical production comprises a tower body assembly; the tower body assembly is composed of a tower body, a feeding pipe, a discharging pipe and a first control valve; a stirring shaft assembly is arranged in the tower body, and the stirring assembly is composed of a stepping motor, a protection box, two transmission gears, two rotating shafts and a plurality ofstirring blades; a protection assembly is arranged at the top of the tower body and composed of a protection pipe, an air leakage hole, a connecting rod, a push plate, a spring, a piston, an electromagnetic valve, an exhaust pipe, a supporting plate, a normally-open button switch and a buzzer. If the internal pressure of the tower body is too large, the redundant pressure pushes the piston to rise, the piston pushes the push plate to rise through the connecting rod and extrudes the normally open button switch at the moment, the buzzer and the electromagnetic valve are powered on to work, thenthe buzzer makes a sound to give an alarm at the moment, and the electromagnetic valve is switched on, so that the redundant gas in the tower body can be exhausted through the exhaust pipe, and the explosion-proof function is achieved.

The invention relates to an explosion-proof solar energy LED equipment lamp which belongs to a novel explosion-proof lighting product which is safe and environment-friendly, and can increase income and decrease expenditure, mainly solves the problem of energy conservation of petroleum petrochemical illumination and comprises a solar module, a storage battery, a safety fence, a controller and an LED lamp; as the solar module adopts an intrinsic safety design, a circuit board is arranged in an explosion-proof box, the circuit board, the explosion-proof box and the intrinsic safety type or safety-increased storage battery are arranged in a control box, a 220VAC emergency power supply can be switched in, the lamp part is in the intrinsic safety type, the exteriors of all the parts are connected by cable, therefore, the equipment lamp explosion-proof technology not only causes the safe and reliable application of solar energy in the petroleum chemical industry to be possible, but also can fully utilize the renewable energy source to realize illumination and energy conservation; the LED with high quality has little attenuation and long service life, the direct-current constant flow actuation in the lamp leads the LED to maintain constant brightness; a singlechip and a special computer chip are used, thus having the function of emergency lamp; the lamp is dual-purpose, independent and safe, can form a system independently, and can operate independently and normally under unmanned operation, thus being convenient for use; and the equipment lamp can be widely applied in the petroleum chemical industry and other flammable and explosive hazardous fields.

The invention relates to a system for monitoring the content of residual oxygen in an acid regeneration calcinator on line. The system comprises a measurement system, a signal conditioning and data processing system and a terminal treatment system, wherein the measurement system consists of a condensation device, a measurement chamber I, a de-acidifying device, an oxygen sensor, a measurement chamber II and a suction pump, which are connected with one another through a gas pipeline; the signal conditioning and data processing system consists of a filter and amplification unit, a signal input unit, a singlechip microcomputer and a DA (digital / analog) converter, which are connected with one another in sequence; the terminal treatment system consists of a PLC (programmable logic controller) and an upper computer; after multiple paths of signals are conditioned and processed by the singlechip microcomputer, data enters the upper computer through the PLC for performing terminal treatment of online monitoring on oxygen concentration. Compared with the prior art, the system has the beneficial effects that the oxygen content can be measured in a high-temperature corrosive gas environment, a circuit system is directly connected with a gas sampling and sensing unit, the reaction time of the system is shortened, and the protection on measurement elements and the requirement on environment protection are satisfied by an acid-base neutralization filter device.

The invention discloses a manhole cover preventing accidental explosions, and relates to the technical field of manhole covers. The manhole cover preventing the accidental explosions comprises a well ring and a cover body. A through hole is formed in the cover body, a sealing device is arranged at the bottom of the well ring or the cover body, a cavity is arranged in the sealing device, the through hole is communicated with the cavity, and water outlet holes are formed in the side wall of the sealing device. Compared with the prior art, the manhole cover has the advantages that the sealing device is arranged on the lower portion of the well ring or the cover body, so that cigarette butts and fireworks fall into the cavity of the sealing device rather than directly fall in pollution discharge pipes, and accordingly the explosions caused due to the fact that the cigarette butts and the fireworks fall into the pollution discharge pipes are effectively avoided. Besides, the water outlet holes are formed in the side wall of the sealing device, and normal use of the manhole cover is not affected.

The invention discloses an explosion-proof valve. The explosion-proof valve comprises a valve body, an air-permeable film and a protecting sheet; an accommodating cavity is formed in the valve body, an explosion-proof pointed cone is arranged in the accommodating cavity and comprises two or more edge sheets, and all the edge sheets are connected to form the explosion-proof pointed cone in a multi-edge shape, wherein a top cone is arranged at the top of the explosion-proof pointed cone; and the valve body is provided with an exhaust hole, the air-permeable film and the protecting sheet, and theair-permeable film is arranged between the protecting sheet and the explosion-proof pointed cone. A battery exchanges gas with the exterior through the explosion-proof valve mounted on a battery shell, when the pressure of the battery is excessively large and reach the critical value, explosion-proof film paper is pressed towards the accommodating cavity and punctured by the explosion-proof pointed cone arranged in the accommodating cavity, a multi-edge structure on the explosion-proof pointed cone tears the air-permeable film in multiple directions in the direction of the edge sheets, thusa gas flow is divided along edge grooves formed between the edge sheets, the divided gas flow is quickly exhausted out of the explosion-proof valve through the exhaust hole, the battery shell communicates with the outside through the explosion-proof valve, and thus the explosion-proof function is achieved.

A quick door-opening structure of a mining explosion-suppression high-voltage distribution device comprises an explosion-suppression box body, wherein the explosion-suppression box body is installed on a box body door frame, and an explosion-suppression door is installed at the outer end of the box body door frame. An upper front door block and a lower front door block are symmetrically and vertically installed on the explosion-suppression door frame at interval, the upper end and the lower end of the explosion-suppression box body are provided with hinge seats through third bolts respectively, and a first movable hinge is installed in the upper front door block and is installed on the hinge seat at the upper end through a third cylindrical pin. A second movable hinge is installed in the lower front door block and is installed on the hinge seat at the lower end through a third cylindrical pin. An eccentric shaft is installed between an upper door block and a lower door block, a sleeve is fixed on the eccentric shaft through a first cylindrical pin, and a handle is installed outside the sleeve through a second cylindrical pin. The quick door-opening structure further comprises a rack, wherein the rack is fastened on the box body door frame through a first bolt and a positioning pin. Evenly separated semi-circular grooves are arranged on the explosion-suppression door frame and are matched with tooth shapes of the rack. The quick door-opening structure of the mining explosion-suppression high-voltage distribution device is good in reliability.

The invention provides a fuel additive premixing device and its premixing method, wherein the fuel additive premixing device comprises a heating dissolving unit, a premixing tank and a heat medium storage tank; the heating dissolving unit comprises a first heating tank and a second heating tank located in the first heating tank; a first heat medium storage cavity is arranged between the first heating tank and the second heating tank, and a heating coil pipe and a cap body are arranged in the second heating tank; the cap body is hollow; the heating coil pipe is connected to the inner part of the cap body; the heating coil pipe and the cap body are connected to the first heat medium storage cavity, the heat mediums in the first heat medium storage cavity and the heat medium storage tank canbe circularly flowed; a first fluid inlet of the premixing tank is connected with a fluid outlet of the second heating tank. The fuel additive premixing device heats and dissolves EuroAd and other semisolid or solid matters by dual-circular heating method, the premixing of the semisolid or solid matters and fuel oil or other fluid can be realized under any environment temperature.

The invention provides an explosion-proof pipe device capable of automatically adjusting the flow. The explosion-proof pipe device comprises a frame, an inner pipe is arranged in the frame, a pressurizing and expansion mechanism and a flow controller are arranged on the inner pipe, and the pressurizing and expansion mechanism and the flow controller are connected through a connecting part arrangedon the side wall of the frame; the pressurizing and expansion mechanism provides drive force to the flow controller through the connecting part, and the control of the flow controller to the fluid flow is achieved accordingly; and the connecting part serves as the fulcrum, the pressurizing and expansion mechanism and the flow controller are arranged in the way of lever principle, when the pressure and flow of fluid increase abruptly, the pressurizing and expansion mechanism provides the drive force to the flow controller, and the adjustment of the flow and pressure of the fluid is achieved accordingly through the flow controller, so that the explosion-proof function of the pipe is achieved, and the explosion-proof pipe device is simple in structure and easy to realize.

The invention discloses an anti-explosion solar module with the rated power no larger than 5W. The anti-explosion solar module comprises a piece of tempered glass, EVA adhesive films, a solar battery piece, an insulation backboard, a connecting box, a PCB with a voltage-stabilizing current-limiting control circuit, and sealant. The two sides of the solar battery piece are provided with the preset layers of EVA adhesive films respectively, and the solar battery piece with the EVA adhesive films is placed between the tempered glass and the insulation backboard, the connecting box is arranged on the other side, opposite to one side provided with the EVA adhesive films, of the insulation backboard, the PCB with the voltage-stabilizing current-limiting control circuit is arranged in the connecting box which is sealed by the sealant, and the sealant and the EVA adhesive films are pasted together. The anti-explosion solar module with the rated power no larger than 5W meets the requirement of the GB-3836.4-2000 anti-explosion standard, and has the good anti-explosion function.

The invention discloses an anti-explosion automatic water mist fire extinguishing device which consists of an anti-explosion assembly, a special hanging rack, a water mist spraying assembly, an electric ignition head, a gas generator, anti-freezing water and a tank body, wherein the water mist spraying assembly consists of a tank body spraying nozzle assembly, a flow guide frame and a special nozzle. The fire extinguishing device disclosed by the invention is provided with the anti-explosion assembly with special design; the anti-explosion assembly comprises an anti-explosion gas generator, an anti-explosion lead wire joint, an anti-explosion shielding sleeve, an anti-explosion aviation joint, an anti-explosion rubber film and an anti-explosion film pad. The anti-explosion assembly in the device achieves a good anti-explosion effect; under the action of the anti-explosion assembly, the device can be used in a combustible and explosive environment; the anti-explosion assembly achieves a good explosion isolation and prevention effects; after the device is started, the combustible and explosive environment is free of explosion and combustion; meanwhile, any damage, which is caused by possible explosion and combustion in an external protection environment, to the device can be avoided.

The invention discloses an anti-explosion junction device good for preventing electrified wrong opening. The anti-explosion junction device good for preventing electrified wrong opening comprises a base and an upper cover, wherein the base is also provided with a conduit; a wiring part is also arranged in a wiring cavity; the wiring part comprises a wire incoming side, a wire outgoing side and a conducting strip; contacts are arranged on both the wire incoming side and the wire outgoing side; a guide rod and a screw rod are fixed on the upper cover; the conducting strip comprises an insulating base body and a metal strip; the screw rod is also provided with a locking nut; a sealing ring is also arranged between the locking nut and the upper cover; the conduit comprises a wire leading barrel, a differential-diameter through hole in the wire leading barrel, an inner screw thread arranged on one end of the differential-diameter through hole, a sealing pad, a compressing nut, and through holes on both the sealing pad and the compressing nut; the wire leading barrel is also provided with an outer screw thread; a locking bolt is arranged on the outer screw thread; the wire leading barrel is also provided with a bump for protruding with respect to the outer wall. The anti-explosion junction device good for preventing electrified wrong opening has good anti-explosion performance, fast connecting speed of cable joints and good connection stability of the wire joints, and is suitable for anti-explosion connection of cables within a certain wire diameter range.

The invention relates to the field of explosion-proof equipment, in particular to a mobile explosion-proof socket box. The mobile explosion-proof socket box comprises a box body and a box cover, the box body is connected with the box cover through a hinge, the box cover is provided with a hasp for firmly covering the box body, the box body is rectangular, a pedestal is arranged at the bottom in the box body and fixed on the bottom through angular bolts at four sides thereof, a patch board is fixed on the pedestal, an explosion-proof switch is embedded in one lateral surface of the box body, the knob of the explosion-proof switch comes out of the outer side of the box body, the power input wire of the patch board is led in from a small hole of one lateral surface of the box body and connected with the patch board after passing the explosion-proof switch, a plurality of grooves used for a plurality of plug input wires are opened in the lateral surface of the box body, a sealing ring gasket is arranged in each of the grooves and small hole, and a sealing ring gasket is arranged at the upper edge of the lateral surface of the box body for sealing the gap between the box body and the box cover. The mobile explosion-proof socket box perfects the explosion-proof function of the socket, improves the socket adapting performance and realizes the explosion protection for a plurality of common electric appliances under a mobile environment.

The invention is a method and a structure for preventing flame-proof diving sewage water pump mouth ring generating friction spark and high temperature, and the invention utilizes a method of adding mouth rings on a pump casing and an impeller, namely a pump casing mouth ring and an impeller mouth ring. The pump casing mouth ring is a fixed part which is fixed on the pump casing, the impeller mouth ring is fixed on the impeller and is a moving part rotating with the impeller, the radial clearance of the two mouth rings is 0.15-0.6 millimeters, the impeller and the pump casing are made of high strength metal materials, the pump casing is not made of metal materials any more but is the same with the impeller which is made of non-metal materials simultaneously, and the materials include polytetrafluoroethylene, imported sialon, graphite and polyurethane. The method and the structure have the advantages that because the pump casing mouth ring and the impeller mouth ring are made of non-metal materials, when accidents happen, moving and fixed parts in the small clearance of the two mouth rings can not generate friction spark when the moving part and the fixed part strike each other, simultaneously when the friction temperature is relatively high, the non-metal materials can be carbonized, thereby finishing friction without generating damages, namely achieving the flame-proof function.

The invention relates to the technical field of high-voltage insulating bushings, in particular to a mechanical explosion-proof structure of high-voltage bushing equipment. The structure comprises a bushing body and a conducting rod, and the conducting rod is arranged in the bushing body in a penetrating mode. The inner cavity of the bushing body is provided with an insulating medium, and a top pressure relief device is arranged at an upper end opening of the bushing body. A pressure relief cavity of the top pressure relief device is communicated with the inner cavity of the bushing bod. A bottom pressure relief device is arranged at a lower port of the bushing body, and a pressure relief cavity of the bottom pressure relief device is communicated with the inner cavity of the bushing body.The two ends of the conducting rod are respectively arranged on the top pressure relief device and the bottom pressure relief device in a penetrating mode. The structure is reasonable, and on the basis that the structure of an existing bushing type equipment body is not changed, the impact energy is relieved through the mechanical strength tolerance of a material, thereby avoiding the destructiveinfluence of explosion of the bushing body on surrounding objects and achieving the explosion-proof function. Moreover, the structure is easy to install, is convenient for the quick replacement of the existing bushing equipment, and is high in good engineering application and popularization values.

An energy-saving electric vehicle for loading, unloading and transporting goods is composed of electric accumulator as power source, hydraulic drive systemwith microprocessor control unit for controlling the electric vehicle and hydraulic pump set, the potential energy and kinetic energy recovering unit, the speed regulating unit consisting of motor and variable pump, and the multiple stages combined hydraulic oil tank.

The invention discloses a mine wiring device. The mine wiring device comprises a base and an upper cover; the base is provided with a conduit; a wiring unit is arranged in a wiring chamber; the wiring unit comprises a wire inlet side, a wire outlet side and a conducting strip; the wire inlet side and the wire outlet side are both provided with contact terminals; a guide rod and a screw are fixed to the upper cover; the conducting strip comprises an insulating substrate and a metal bar; the screw is provided with a lock nut; a seal ring is arranged between the lock nut and the upper cover. The mine wiring device is good in explosion-proof performance and can prevent wiring contactors from being exposed outside to work in the hazardous environment.

The invention discloses an explosion-proof device for an oil tank of a motor vehicle. The device comprises the oil tank; a tank body covers the surface of the oil tank; a closed cavity is formed between the tank body and the oil tank; a controller and a first oxygen detection probe are arranged in the closed cavity; a plurality of solenoid valves are arranged on the surface of the oil tank in the closed cavity; a second oxygen detection probe is mounted in the oil tank; the controller is respectively connected with the first oxygen detection probe, the second oxygen detection probe and each solenoid valve; the tank body is communicated with a tail pipe of the vehicle through a pipeline. According to the device, exhaust containing extremely small oxygen can be guided into the closed cavity; the oxygen detection probes can monitor the concentration of oxygen in the oil tank and the closed cavity and feed back to the controller; then the controller controls the solenoid valves to be on and off to reduce the oxygen content in the oil tank, and as a result, the explosion-proof function of the oil tank of the motor vehicle can be achieved. The device is simple in structure, convenient to use, safe and reliable.

The invention discloses a small-size anti-explosion device of a mineral seeking and rescuing robot, relates to a robot anti-explosion device, and solves the problem that a conventional robot is poor in anti-explosion property. The small-size anti-explosion device of the mineral seeking and rescuing robot comprises high-pressure CO2 cylinders, a depressurizing valve, a connector base, an electromagnetic valve, a five-way valve and four exhaust pipelines, wherein the connector base is internally provided with a gas channel; CO2 high-pressure cylinder connectors and a depressurizing valve connector communicated with the gas channel are arranged on the connector base; an outlet of each CO2 high-pressure cylinder is connected with the corresponding CO2 high-pressure cylinder connector; an inlet of the depressurizing valve is connected with the depressurizing valve connector; one end of the electromagnetic valve is connected with an outlet of the pressurizing valve; the other end of the electromagnetic valve is connected with the five-way valve; the exhaust pipelines are respectively connected with other four through holes in the five-way valve. The anti-explosion device is applied to explosion prevention of the underground seeking robot.

The invention relates to an anti-explosion door catch mechanism and a switch cabinet. The anti-explosion door catch mechanism comprises a set of cabinet body assembly mounted on cabinet body of the switch cabinet and a set of cabinet door assembly mounted on a cabinet door. The cabinet body assembly and the cabinet door assembly cooperate to lock or open the cabinet door of the switch cabinet. Thecabinet door assembly comprises a lock pin lock block and a latch lock block, and the lock pin lock block and the latch lock block are fixedly mounted on the cabinet body. The cabinet door assembly comprises latches, lock pins, fixed pin lock blocks, a conversion structure, transverse push rods, door catch fixing plates, door catches, sliding rod guide plates provided with guide holes, door catchlock blocks and sliding rods penetrating through the guide holes. A door handle is rotated, spring bolts of the latches move up and down in the vertical direction, the lock pins and the conversion structure are pushed, finally the door catches are pushed to become into horizontal motion, the door catches are horizontally inserted into door catch holes formed by the door catch lock blocks and thelatch lock block, the cabinet door of the switch cabinet is also locked in the horizontal direction, and the switch cabinet door is locked. The door lock handle rotates flexibly, mechanism operation force is small, operation is simple, use is convenient, and the anti-explosion performance is reliable.

The invention discloses a conveniently-connected mining anti-explosion connecting box. The conveniently-connected mining anti-explosion connecting box comprises a base and an upper cover. The base is provided with wire through tubes; a connecting unit is arranged inside a connecting cavity and comprises a wire inlet side, a wire outlet side and communicating stripes, wherein the wire inlet side and the wire outlet side are provided with contacts; the upper cover is fixedly provided with a guide rod and a screw; every communicating strip comprises an insulating base body and a metal stripe; every wire through tube comprises a wire lead barrel, a reducing through hole formed in the lead barrel, inner threads, a sealing gasket, a pressing nut, a sealing gasket and a through hole formed in the pressing nut, wherein the inner threads the sealing gasket, the pressing nut, the sealing gasket and the through hole are arranged at one end of the reducing through hole, the lead barrel is provided with outer threads which are provided with a locking bolt, and the lead barrel is also provided with protrusions protruded relative to the outer wall of the lead barrel. The conveniently-connected mining anti-explosion connecting box is good in anti-explosion performance, high in connecting speed of cable connectors, good in connecting stability of the cable connectors and applicable to anti-explosion connection of cables with diameters within a certain range.

The invention discloses tire burst-proof rubber. The tire burst-proof rubber comprises the following components in percentage by mass: 20-35% of a main polymer, 30-60% of tackifying resin, 10-25% of a diluting agent and 0.2-0.5% of an additive, and a special polystyrene-isoprene-styrene block copolymer is used as a main raw material. Through grafting modification, the rubber has 10 or more branched chains, and has efficient attaching performance, and through a special tackifier, cold resistance and heat resistance are improved, and a burst-proof function is effectively realized.

The invention discloses a split-type plug and a manufacturing method thereof and belongs to the electrical connecting device field. The split-type plug comprises a plugging-bolt shell, a power supply electrode, a grounding electrode and an electrode fixation insertion block. The plugging-bolt shell possesses a cavity, wherein an assembling port is arranged above the plugging-bolt shell. A side wall of the plugging-bolt shell is provided with a power supply electrode bayonet and a grounding electrode bayonet which are connected to the cavity respectively. The power supply electrode and the grounding electrode are assembled in the plugging-bolt shell. And contact points of the power supply electrode and the grounding electrode are wedged into the corresponding power supply electrode bayonet and the grounding electrode bayonet. The electrode fixation insertion block is inserted into the plugging-bolt shell through the assembling port so that the power supply electrode and the grounding electrode are fixed between the plugging-bolt shell and the electrode fixation insertion block. The invention also discloses a manufacturing method of the split-type plug. By using the plug and the method, a defective rate of the product is reduced; even if there is a defective product, a metal electrode can still be recycled; resource wastes are avoided and production efficiency is greatly increased.

The invention relates to an explosion-proof key switch. The technical problem to be solved by the present invention is to provide an explosion-proof key switch with simple structure, low cost, reliable operation and convenient operation. The technical solution to solve this problem is: an explosion-proof key switch, with a switch base and a cover plate, a switch lock cylinder and a rotating shaft connected to each other are arranged inside the switch base, the output end of the rotating shaft extends through the cover plate to the outside of the switch base, and the The micro switch matched with the output end of the rotating shaft is characterized in that the input end of the rotating shaft is installed on the switch seat through the copper sleeve of the outer jacket, and the gap between the copper sleeve and the rotating shaft and the switch seat is less than 0.2mm, and the length of the gap is greater than 12.5 mm, less than 30mm, there is a notch on the end surface of the output end of the rotating shaft, and the power end of the elastic rod installed on the micro switch is provided with a roller in contact with the longitudinal section of the notch, and the other side of the power end of the elastic rod is in contact with the moving contact . The invention is mainly applicable to explosion-proof vehicles under various explosive gas environments.

The invention relates to a boiler safety explosion-proof device and effectively solves the problem that after an existing boiler explosion-proof device exists, the existing boiler explosion-proof device is not complete in explosion-proof function. According to the technical scheme, the boiler safety explosion-proof device comprises a furnace body; a hollow disk is arranged above the furnace body; a rotating shaft is installed in the center of the hollow disk, and is evenly provided with a plurality of fan blades; a first pipeline is arranged on the right side of the hollow disk, and is internally provided with a first slider; the first slider is connected with the upper end of the first pipeline through a first pressure spring; the hollow disk is communicated with a cavity of the first pipeline through a steam pipeline; a water tank is arranged above the hollow disk which is communicated with the water tank; the lower end of the water tank is communicated with a furnace body 1 through a water draining pipe which is provided with a check valve; the rotating shaft is provided with a rotating disk in which a plurality of blind holes are formed; second sliders are formed in the blind holes, and are connected with the blind holes through tension springs; an oil conveying pipeline is arranged on the rear side of the rotating disk; and an oil control device is arranged between the rotating disk and the oil conveying pipeline. The boiler safety explosion-proof device is more convenient, fast and humanized.

The invention relates to an LED anti-explosion lamp suitable for being mounted on complex terrains. The LED anti-explosion lamp comprises an anti-explosion head and an anti-explosion junction box which are connected through an elbow, the tail of the anti-explosion lamp head is connected with one end of the elbow through an anti-explosion movable joint, the other end of the elbow is connected with one interface of the anti-explosion junction box, the anti-explosion junction box is connected with a wall surface through fixing screws, a limiting block is arranged at the outer end of a bent position of the elbow, a hole is formed in the middle of the limiting block, a pull rod is arranged between the elbow and a wall, one end of the pull rod penetrates the hole in the middle of the limiting block to be connected with a hook fixedly mounted on the wall surface, and a power source line of the anti-explosion lamp head is connected with the anti-explosion junction box through the elbow. Under the premise that an anti-explosion function of an LED lamp is realized, stability, convenience and quickness in mounting are realized, and the LED anti-explosion lamp is suitable for various terrains.

The invention relates to a high-efficiency reaction device with explosion-proof function for pesticide production. The transmission shaft is arranged in the main body, the stirring rod is installed on the transmission shaft, the top of the main body is provided with a driving device, and the driving device is drivingly connected with the transmission shaft, an explosion-proof mechanism is arranged on the main body, and an explosion-proof mechanism is arranged on the main body. An auxiliary mechanism is provided, and the auxiliary mechanism is arranged on the transmission shaft. The explosion-proof mechanism includes a connecting pipe, an emergency stop button, a bracket, a push plate, a transmission rod, a moving plate and two supporting components. The high-efficiency reaction device with explosion-proof function realizes the effect of explosion-proof through the explosion-proof mechanism, which improves the safety. Not only that, but also realizes the function of crushing the reactant through the auxiliary mechanism, which improves the reaction efficiency.

The invention relates to a single-pole double-throw explosionproof pressure temperature controller with an auxiliary switch. A switch part of the temperature controller comprises a partition plate, amain switch box assembly and a switch cover assembly which form a dual-cavity structure explosionproof cavity, a sliding hole shaft interference fit structure is employed among a main push rod, an auxiliary push rod and the partition plate, plate bodies of the partition plate, the main switch box assembly and the switch cover assembly, corresponding plate bodies, a public terminal, a master control terminal, an auxiliary terminal and an additive terminal are in interference fit, the matched gap is smaller than or equal to 0.1 millimeter, and the matched length is larger than or equal to 2 millimeters. A part which probably generates electric spark and a leading-out end can be enclosed in the dual-cavity structure sealing cavity by minimum space, so that the explosionproof function of the single-pole double-throw explosionproof pressure temperature controller with the auxiliary switch can be achieved, and the appearance size of an original temperature controller also cannot be increased.