39results about How to "Guaranteed explosion-proof performance" patented technology

The invention discloses an anti-explosion long-service-life piezoresistor. The anti-explosion long-service-life piezoresistor comprises a housing, buffer filler, pouring sealant, and a piezoresistor body. The buffer filler is particle type insulated moistureproof incombustible material resistant to high temperature and high in strength and wraps the piezoresistor body to achieve the anti-pressing buffer effect, moisture resistance and heat radiation. The housing is provided with via holes so as to adjust air pressure inside and outside and heat radiation. The piezoresistor is a commonly coated piezoresistor and has a gap from the housing to form a filling chamber filled with the buffer filler, the via holes on the housing are smaller than particle size of the buffer filler, leakage of the filler is avoided as functionality is achieved, and the pouring sealant serves as the insulated incombustible materials and seals one end of an opening after the piezoresistor and the buffer filler are filled into the housing. Anti-surge performance of the piezoresistor can be improved, service life of the piezoresistor is prolonged, and the buffer filler can guarantee anti-explosion performance and guard piezoresistor against moisture at the same time.

The invention discloses an intelligent household fuel gas explosion-proof system. The system comprises a detection box, a mounting plate and a control system, a control box is fixedly connected to theleft lower corner of the inner cavity of the detection box, a first gas concentration detector is arranged on the right wall of the detection box in a penetrating manner, the inner part of the rightwall of the control box and the outside of the first gas concentration detector are filled with hot melt adhesive, and the invention relates to the technical field. According to the intelligent household fuel gas explosion-proof system, an independent space can be formed at a pipeline joint which easily leaks fuel gas, the concentration of gas inside the pipeline joint can be detected, the gas leakage phenomenon can be detected in time, a miniature electric telescopic rod can be used for pushing the button switch to enable the sealing valve to be closed, so that the continuous leakage of the fuel gas is avoided, the electronic devices in the detection box can be isolated from the fuel gas by arranging the hot melt adhesive and the sealing plate, the sealing property of the sealing valve iskept by the sealing film, the gas combustion explosion caused by electrifying of the electronic element can be avoided, and the explosion-proof performance is ensured.

The invention discloses a blast-proof and anti-falling protector used in the hazardous environment. The protector comprises a conical casing of which the inner cavity is invertedly conical, and a conical iron core of which the external wall is arranged in the conical casing in an inverted conical shaped; nuts surrounding the conical iron core and belleville springs which are butted between the nuts and the inner cavity of the conical casing are arranged at the top end of the conical casing; a diode safety barrier is arranged on the conical casing; the nonessential safety end of the diode safety barrier is connected with a motive power source, and the essential safety end of the diode safety barrier is connected with a safety switch; a centrifugal block base and a centrifugal block which is arranged in the centrifugal block base and is fixed by a spring pressing sheet are arranged at the bottom of the conical iron core. According to the diode safety barrier, the safety switch s connected with the motive power source in series by the diode safety barrier, so that a non-energy-limited circuit does not affect an energy-limited circuit, the effect of isolating the non-energy-limited circuit from explosive substances can be realized, the blast-proof performance of the protector can be effectively guaranteed, and the risk of working in the potentially explosive atmospheres can be reduced. The blast-proof and anti-falling protector is used for the field of blast-proof protectors.

The invention relates to a sealing device for an electric switch of an explosion-proof thermostat. The sealing device comprises a plastic shell and a partition plate, wherein the partition plate is connected onto the plastic shell in a buckling way, and a sealing device is arranged at a joint of the partition plate and the plastic shell. The sealing device has the advantages that the joint of the partition plate and the plastic shell is sealed by the sealing device, so that the situation that electric sparks generated by turning on a contact inside the thermostat encounter flammable and explosive gas from refrigeration equipment to produce combustion or explosion is effectively avoided, and thus the explosion resistance of the product is effectively ensured, the user effect is improved, the use is safe and reliable, and the structure is simple.

A visual fire door of a cement brick making kiln comprises a sight window arranged in the middle of the fire door, the sight window consists of two layers of anti-explosion glass and a steel wire mesh arranged between the two layers of anti-explosion glass, and the two layers of anti-explosion glass are mounted in first grooves formed in an inner layer and an outer layer of the fire door respectively and fixed through fixing plates respectively. The visual fire door of the cement brick making kiln has the advantages that operation conditions in the kiln can be viewed directly while the anti-explosion performance, sealability and heat preservation of the fire door are guaranteed, and thereby the visual fire door is quite convenient to operate.

The invention discloses a detector. The detector comprises an explosion-proof assembly and a sensing assembly; the explosion-proof assembly includes a sealing structure, and the sealing structure comprises a shell, a transparent cover body and a sealant; a connecting hole and a threaded hole are formed in the shell; the cover body comprises a first connecting part and a second connecting part, andthe first connecting part is in threaded connection with the threaded hole; a gap forming a glue dripping cavity is formed between the second connecting part and the connecting hole. When the explosion-proof assembly is assembled, the threaded hole can face downwards, the glue dripping cavity is filled with the sealant, and superfluous glue can flow downwards into a space between the wall of thethreaded hole and the first connecting part under gravity, moves multiple circles in a threaded structure between the wall of the threaded hole and the first connecting part and then is solidified, sothat the glue is prevented from overflowing from the shell, and the production efficiency of the explosion-proof assembly can be improved under the premise of ensuring the explosion-proof performanceof the detector.

The invention relates to an efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler system, and belongs to the technical field of heat transfer oil equipment. The efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler system comprises an air inlet system, a burner and a boiler body, wherein the boiler body comprises a combustion chamber as well as a radiation heat-exchange surface and a convection heat-exchange surface, which adopt exhaust pipe structures, and are arranged in series on the outer wall of the combustion chamber; the burner is communicated with the combustion chamber; the air inlet system comprises a primary air inlet device, a secondary air inlet device and a tertiary air inlet device; the primary air inlet device and the secondary air inlet device are both connected to the burner; the primary air inlet device is put in from the middle part of the burner; the secondary air inlet device is put in from bottom of the burner; and the tertiary air inlet device is arranged in the middle of the side wall of the combustion chamber and used for directly supplying wind for the combustion chamber. The efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler provided by the invention has the advantages of high automatic degree, high heat efficiency and the like.

The invention relates to a flexible cable accessory explosion-proof apparatus and a mounting method. The apparatus comprises a flexible oil-filling belt capable of being fixed and wrapped on a cable accessory, wherein a plurality of hollow oil-filling compartments are arranged in the flexible oil-filling belt and filled with insulating oil used for flame retardance; and an oil-filling hole capable of being sealed is formed in each oil-filling compartment. According to the apparatus and the mounting method, the flexible oil-filling belt is arranged and the hollow oil-filling compartments are arranged in the flexible oil-filling belt, so that the flexible oil-filling belt can be filled with the insulating oil; the flexile oil-filling belt is wrapped on the cable accessory after being filled up with the insulating oil; a huge pressure is generated due to explosion when the cable accessory has a fault, so that a side wall of the flexible oil-filling belt close to the cable accessory is broken; an generated electric arc can be extinguished after the insulating oil is released, so that a fire accident is avoided; the flexible oil-filling belt in the apparatus can be deformed under the action of the explosion to improve the explosion-proof effect; and the flexible oil-filling belt can be deformed and is suitable for performing explosion prevention in a narrow and small environment or at special parts such as a part irregular in shape and the like.

The invention relates to an electric switch sealing device of an anti-explosion temperature controller. The electric switch sealing device comprises a plastic shell and a partition plate, wherein the partition plate is fastened on the plastic shell; and a sealing device is arranged at a joint of the plastic shell and the partition plate. The electric switch sealing device has the advantages that the joint of the plastic shell and the partition plate is sealed through the sealing device, the phenomenon that spark generated when contacts in the temperature controller contact with each other meets flammable and explosive gas of refrigerating equipment and combustion or explosion is caused is prevented effectively, so that explosion resistance of the electric switch sealing device is guaranteed effectively, a service effect is improved, and the electric switch sealing device is safe and reliable, and is simple in structure.

The invention discloses an anti-explosion heat dissipation type computer cable, comprising a cable core. The cable core is formed by oppositely twisting a pair of insulated wire cores; the outside ofthe cable core is filled with a glass fiber tape, an inorganic thermal insulation fire protection layer is arranged outside the cable core, a steel belt shielding layer is arranged outside the inorganic thermal insulation fire protection layer, a halogen-free flame retardant polyethylene woven belt is arranged outside the steel belt shielding layer, an elastic buffer layer is extruded outside thehalogen-free flame retardant polyethylene woven belt, and a high flame retardant three-low smoke halogen-free flame retardant environment-friendly type anti-explosion sheath layer is arranged outsidethe elastic buffer layer; a filling position of the cable core is further provided with a flow guiding copper alloy hose in which water cooling liquid is added. The anti-explosion heat dissipation type computer cable has the characteristics of anti-explosion, fire retardance, heat dissipation, anti-electromagnetic interference and the like, the cable structure is simple, the signal transmission isstable, the anti-electromagnetic interference performance is outstanding, and the cable can stably operate for a long time in the severe environment.

The invention provides an anti-explosion spinning preheating furnace. The anti-explosion spinning preheating furnace is structurally characterized in that an insulating layer is arranged on an inner wall of a furnace body, a heating cavity is formed in the furnace body, a spinning tube and a heat conducting oil tube which are arranged inside and outside concentrically penetrate through the heatingcavity, the heat conducting oil tube is externally connected with a heat conducting oil heating device, the heat conducting oil tube in the heating cavity is provided with an expansion section, the heat conducting oil tube outside the heating cavity is provided with a decompression tube, and a decompression valve is arranged on the decompression tube. The anti-explosion spinning preheating furnace has the advantages that heat conducting oil is heated by the heat conducting oil heating device and then is used for heating the spinning tube through the heat conducting oil tube, during heating, pressure can be alleviated through the expansion section, and anti-explosion performance of the furnace is improved; when the pressure continuously increases, the decompression valve can be turned on,so that air in the heat conducting oil tube can be exhausted through the decompression tube, the pressure is released, and the anti-explosion performance of the furnace is improved furtherly; througha temperature sensor and a temperature display, a preheating temperature can be monitored in real time, when the temperature is too high or too low, the heat conducting oil heating device can be controlled to rise the temperature, operational stability of the furnace is improved furtherly, and the anti-explosion performance of the furnace is guaranteed.

The invention discloses an integrated explosion-proof stepping peristaltic pump. The integrated explosion-proof stepping peristaltic pump comprises an explosion-proof control box, an explosion-proof stepping transmission assembly and a safety protection cover; the explosion-proof control box seals non-explosion-proof assemblies such as a stepping motor subdivision driver, a power supply controller and a main control board into the explosion-proof control box; the explosion-proof stepping transmission assembly is arranged at the top of a box cover; the motor is an explosion-proof stepping motor; and different types of explosion-proof stepping motors are selected and arranged according to torque and speed. The integrated explosion-proof stepping peristaltic pump has the beneficial effects that by arranging the stepping motor subdivision driver, during use of the integrated explosion-proof stepping peristaltic pump, the stepping motor subdivision driver can drive the peristaltic pump driven by the explosion-proof stepping motor to achieve stepless speed regulation within 0 rpm to 600 rpm, low-flow transmission and no limitation of slow start and slow stop; relatively high transmission precision is achieved; meanwhile, low noise and stable operation are realized, and the practicability of the integrated explosion-proof stepping peristaltic pump is improved; and by arranging the explosion-proof stepping motor, during use of the integrated explosion-proof stepping peristaltic pump, the explosion-proof stepping motor can always keep the explosion-proof performance of the integrated explosion-proof stepping peristaltic pump in any explosion-proof occasion, and the functionality of the integrated explosion-proof stepping peristaltic pump is improved.

The invention belongs to the technical field of gas sensors, and relates to a diffusion type spectral absorption methane probe with explosion-proof performance. The diffusion type spectral absorptionmethane probe comprises a probe explosion-proof shell, wherein one end of the probe explosion-proof shell is connected with a matched explosion-proof box, the other end of the probe explosion-proof shell is set as a closed end, a methane detection gas chamber is assembled in the probe explosion-proof shell, a plurality of gas diffusion holes communicated with the methane detection gas chamber areformed in the closed end of the probe explosion-proof shell, and the probe explosion-proof shell is also filled with an insulating explosion-proof material. The diffusion type spectral absorption methane probe has the advantages of simple integral operation and assembly and high structural strength, and is especially suitable for matching use in coal mines and other places with explosion-proof requirements, such as impact vibration, falling, moisture and the like.

The marine anti-explosion watertight cabin door based on the lightweight design comprises a door frame, the outer edge of the door frame and a cabin wall are fixedly installed in the circumferential direction, a door leaf is rotationally installed on the side face of the door frame through a hinge, and a plurality of locking blocks are rotationally installed on the inner edge of the side face of the door frame at intervals in the circumferential direction; open grooves which are in one-to-one correspondence with the locking blocks and penetrate in the thickness direction are formed in the edge of the door leaf in the circumferential direction. When the door leaf is attached to the door frame, the end of the locking block penetrates through the open groove in the direction of the door leaf. The linkage mechanism drives the multiple locking blocks to rotate synchronously, the linkage mechanism is driven by the handle to promote the locking blocks to rotate, so that the ends of the locking blocks are switched between being parallel or perpendicular relative to the opening grooves, unlocking or locking when the door leaf is attached to the door frame is achieved, and the linkage mechanism is simple, convenient and reliable. And reliable use of the cabin door under the anti-explosion requirement is greatly facilitated.

The invention discloses a combined type anti-explosion transportable oil tank based on gradient distribution foamed aluminum, and belongs to the technical field of oil storage and transportation equipment, the combined type anti-explosion transportable oil tank comprises an oil tank body, and the oil tank body is of a capsule type structure and comprises an oil tank head with an arc-shaped end face and an oil tank tail. At least one section of oil tank middle part with a cylindrical structure is arranged between the oil tank head part and the oil tank tail part, the number of the oil tank middle parts is increased or decreased according to the requirement of the required oil storage quantity, the oil tank head part and the oil tank tail part are fixed on two sides of the oil tank middle part, and a connecting and pressing mechanism is arranged at the fixed part. A plurality of detachable grounding fixing devices and convenient moving devices are arranged outside the oil tank body and can be connected with other parts independently or in a combined mode, and fixing of the oil tank body is achieved. By improving the structure and the material of the oil tank and arranging a multi-oil-tank stacking structure capable of being combined, the oil tank has the advantages that the storage capacity is changed, and the anti-explosion effect is better.

The embodiment of the invention relates to the technical field of electronics and discloses a battery and a battery protecting method. The battery comprises a roll core, an aluminum shell and an anti-explosion protecting film, wherein a pressure relief hole is formed in the aluminum shell and is covered by the anti-explosion protecting film; and the anti-explosion protecting film and the aluminum shell are integrated to clad the roll core. According to the battery and the battery protecting method provided by the embodiment of the invention, the anti-explosion effect is achieved without increasing the complexity and implementation cost of a battery preparation process, so that the safety of the battery is improved.

The invention relates to an energy consumption type explosion-proof connector, which comprises an explosion-proof plug, an explosion-proof socket and a locking ring, wherein the explosion-proof socket comprises a socket cylinder, a socket core body and plug bushes, the explosion-proof plug comprises a plug cylinder, a plug core body and a slot, contact pins in one-to-one correspondence with the plug bushes are fixedly arranged in the slot, the front end of the socket cylinder is provided with an assembly part in an extending manner, the locking ring locks the assembly part and the plug cylinder, a cooling groove spirally extending around the plug cylinder is formed in the inner circumference of the assembly part, a spiral main cooling channel is formed by the cooling groove and the outer circumference of the assembly part, a plurality of energy consumption steel balls rolling along the main cooling channel are arranged in the main cooling channel, one end of the main cooling channel is communicated with the outside and serves as an outer communication end of the energy consumption steel ball, and the other end is communicated with the socket cylinder and serves as an inner communication end with the opening diameter smaller than that of the energy consumption steel ball. By the adoption of the scheme, the energy consumption type explosion-proof connector is simple in structure and good in explosion-proof performance.

The invention discloses a sealing ring anti-explosion pressure detection device, and belongs to the field of sealing ring anti-explosion pressure detection.The device comprises a detection mold body, a branch cavity is formed in the detection mold body, a plurality of high-pressure pipelines are installed in the detection mold body, and the bottoms of the high-pressure pipelines communicate with the interiors of the branch cavities; a first high-pressure three-way pipe is installed on the right side of the detection mold body, the left end of the first high-pressure three-way pipe is communicated with the interior of the branch cavity, a three-way air release valve is installed on the top of the first high-pressure three-way pipe, a pressure display meter is installed on the top of the three-way air release valve, and a second high-pressure three-way pipe is installed on the high-pressure pipeline; and a plurality of sealing ring explosion-proof test holes are formed in the top of the detection mold main body. According to the invention, the test data of the battery sealing ring is accurate, no missing test exists, and the explosion-proof performance and the stability of the battery are well guaranteed.

The invention relates to an explosion-proof type explosion-proof photovoltaic module, and the photovoltaic module comprises a body; the body comprises upper layer glass, lower layer glass and middle layer glass between the upper layer glass and the lower layer glass; the upper layer glass, the middle layer glass and the lower layer glass are fixedly connected, a solar cell panel is arranged between the middle layer glass and the upper layer glass, and the solar cell panel is arranged between the middle layer glass and the lower layer glass; a cable is arranged on the solar cell panel, the cable penetrates through the middle-layer glass and the lower-layer glass to be connected with an electricity storage system, and fixing devices used for fixing the upper-layer glass and the lower-layer glass are arranged at the corners of the body. The explosion-proof cable has the characteristics of good explosion-proof performance, high mechanical strength, good insulating property, high safety coefficient and the like, and explosion propagation and detonation can be avoided.

The invention relates to the technical field of electrical equipment, in particular to a novel explosion-proof distribution box based on electrical automation. According to the technical scheme, the device comprises a top box, a base and a vapor chamber, a bottom box is installed at the top of the base, an explosion door is installed on the front face of the bottom box through hinges, the top box is installed at the top of the bottom box, a copper plate is installed in the top box, a top cover is installed at the top of the top box, the vapor chamber is installed on the back face of the top box, and a semiconductor chilling plate is installed on the back face of the vapor chamber. And a fan is mounted on one side of the semiconductor chilling plate. The semiconductor chilling plate is installed on the back face of the vapor chamber, refrigeration and cooling can be carried out through power-on operation of the semiconductor chilling plate, low temperature can be rapidly conducted in the distribution box through the excellent heat conduction performance of the vapor chamber and the copper plate, the operation temperature of electrical equipment in the distribution box is effectively reduced, normal operation of the electrical equipment is guaranteed, and the service life of the electrical equipment is prolonged. And the sealing performance of the device is not influenced, and the explosion-proof performance of the device is ensured.

The invention discloses an explosion-proof type plasma bulk reactor. The device comprises a waste gas inlet end, a gas inlet pipe, a plasma bulk reactor inner cavity, a gas outlet pipe and a waste gasoutlet end. The gas inlet pipe is mounted at the lower end of the inner cavity of the plasma bulk reactor. The gas outlet pipe is mounted at the upper end of the inner cavity of the plasma bulk reactor. The waste gas inlet end is arranged at one end, away from the inner cavity of the plasma bulk reactor, of the gas inlet pipe. The waste gas outlet end is arranged at one end, away from the inner cavity of the plasma bulk reactor, of the gas outlet pipe. The gas inlet pipe is provided with a gas inlet explosion-proof valve, the gas outlet pipe is provided with a gas outlet explosion-proof valve, and the periphery of the inner cavity of the plasma bulk reactor is sleeved with an explosion-proof box. The plasma bulk reactor has excellent explosion-proof performances.

The invention discloses a high-stability anti-explosion valve. The high-stability anti-explosion valve comprises a controller assembly and a pneumatic head. The controller assembly comprises an upper control module and a lower control module. The upper control module comprises a shell, an upper cover, solenoid valves, a terminal block and a signal feedback mechanism. The lower control module comprises an anti-explosion shell, an anti-explosion end cover, an air source treatment device and an integrated air exhausting device. The lower control module is mounted on the front face of the pneumatic head, and the upper control module is mounted at the top of the pneumatic head. The shell is internally provided with an air channel integrated block. The solenoid valves comprise the first solenoid valve and the second solenoid valve. The first solenoid valve and the second solenoid valve are connected to the air channel integrated block. The air channel integrated block is further connected with a mechanical valve. The anti-explosion shell is internally provided with a first pneumatic control valve, a second pneumatic control valve and an air channel block. The first solenoid valve and the second solenoid valve are connected with two control ends of the second pneumatic control valve through air pipes correspondingly. The high-stability anti-explosion valve is of an integrated structure, high in stability, capable of saving energy consumption, high in control precision, good in anti-explosion performance, not prone to leakage and free of maintenance.

The invention discloses a shock-absorbing and bumping-preventing burst-proof low-speed tire, and belongs to the field of tires. The shock-absorbing and bumping-preventing burst-proof low-speed tire comprises: a tire body; an inner cavity, which is an annular cavity formed in the tire body; an anti-pricking cavity, which is a hole cavity formed between the tire tread of the tire body and the innercavity; and a thin layer, which is reserved between the end, away from the anti-pricking cavity, of the inner cavity and the end, making contact with the rim, of the tire body. The anti-pricking cavity is formed between the tire tread of the tire body and the inner cavity, sharp objects are effectively prevented from pricking into the tire body to damage the inner tire, the burst-proof effect is achieved, the inner cavity is formed close to the end, making contact with the rim, of the tire body, and the road holding force of the tire is enhanced while the shock-absorbing and bumping-preventingperformance of the tire is guaranteed; the shock-absorbing and bumping-preventing burst-proof low-speed tire is directly formed through plastication, mold closing, injection, mold opening, secondarymold closing, gas injection, vulcanization, pressure relief, airtight layer preparation and secondary mold opening, and is easy to produce and manufacture.

The invention discloses an intelligent household fuel gas explosion-proof system. The system comprises a detection box, a mounting plate and a control system, a control box is fixedly connected to theleft lower corner of the inner cavity of the detection box, a first gas concentration detector is arranged on the right wall of the detection box in a penetrating manner, the inner part of the rightwall of the control box and the outside of the first gas concentration detector are filled with hot melt adhesive, and the invention relates to the technical field. According to the intelligent household fuel gas explosion-proof system, an independent space can be formed at a pipeline joint which easily leaks fuel gas, the concentration of gas inside the pipeline joint can be detected, the gas leakage phenomenon can be detected in time, a miniature electric telescopic rod can be used for pushing the button switch to enable the sealing valve to be closed, so that the continuous leakage of the fuel gas is avoided, the electronic devices in the detection box can be isolated from the fuel gas by arranging the hot melt adhesive and the sealing plate, the sealing property of the sealing valve iskept by the sealing film, the gas combustion explosion caused by electrifying of the electronic element can be avoided, and the explosion-proof performance is ensured.

The invention discloses an explosion-proof fire monitor. The explosion-proof fire monitor comprises a base, wherein a water inlet water collector is fixedly arranged at the right end of the upper partof the base; a fire-fighting universal joint is arranged at the left part of the water inlet water collector; an electric water supply adjusting valve is arranged at the left part of the fire-fighting universal joint; an explosion-proof water spraying state adjusting driving motor for controlling the electric water supply adjusting valve is arranged at the front part of the electric water supplyadjusting valve; an upward water outlet gun head is arranged at the upper part of the electric water supply adjusting valve; an explosion-proof battery box, a pouring type logic controller, a pouringtype position sensor and an explosion-proof switch knob are fixedly arranged on the upper part of the base; and a charging and data interface box is arranged on the upper part of the pouring type logic controller. The explosion-proof fire monitor has the advantages that not only fire extinguishing operation can be remotely controlled, but also explosion-proof treatment is integrally carried out, and meanwhile, the explosion-proof fire monitor is convenient to move.

The invention relates to an efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler system, and belongs to the technical field of heat transfer oil equipment. The efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler system comprises an air inlet system, a burner and a boiler body, wherein the boiler body comprises a combustion chamber as well as a radiation heat-exchange surface and a convection heat-exchange surface, which adopt exhaust pipe structures, and are arranged in series on the outer wall of the combustion chamber; the burner is communicated with the combustion chamber; the air inlet system comprises a primary air inlet device, a secondary air inlet device and a tertiary air inlet device; the primary air inlet device and the secondary air inlet device are both connected to the burner; the primary air inlet device is put in from the middle part of the burner; the secondary air inlet device is put in from bottom of the burner; and the tertiary air inlet device is arranged in the middle of the side wall of the combustion chamber and used for directly supplying wind for the combustion chamber. The efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler provided by the invention has the advantages of high automatic degree, high heat efficiency and the like.