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 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 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 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 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.

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 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 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.