30results about How to "Avoid high temperature failure" patented technology

The invention aims to provide a vertical and horizontal efficient energy-saving vacuum controlled atmosphere furnace for continuous production with high space utilization rate, high heating speed, high product cooling speed, short production period and avoidance of great energy waste caused by repeated heating and cooling during production. The furnace consists of a feeding chamber, a reaction chamber and a discharge chamber, wherein the feeding chamber is positioned below the reaction chamber, and the feeding chamber and the reaction chamber form a vertical structure; and the discharge chamber is positioned on the lateral surface of the reaction chamber, and the discharge chamber and the reaction chamber form a horizontal structure so as to form a vertical and horizontal structure and improve the space utilization rate. The furnace realizes heat insulation and seal of each chamber by adopting a heat insulation sealing door, and has high heating speed and high energy efficiency by adopting an inductive heating mode; the product is cooled by adopting a circulating air cooling system; and the vertical and horizontal efficient energy-saving vacuum controlled atmosphere furnace for continuous production can perform continuous production only by one-time heating so as to improve the production efficiency, reduce the production cost and save a large amount of energy.

The invention provides a radial horizontal well sealing device, drilling equipment and a drilling method, and relates to the technical field of geological drilling equipment. The radial horizontal well sealing device comprises a sealing shell, an injection pipe, a sealing element, a power feeding mechanism and a rotary drilling mechanism; the sealing element is of an active rolling type dynamic sealing structure and is arranged between the sealing shell and the injection pipe; the rotary drilling mechanism and the power feeding mechanism both adopt high-pressure jet fluid as a power source so as to transmit rotary power and feeding power to the injection pipe; and the drilling equipment comprises an oil pipe, a steering gear, a jet drill bit and a sealing device. By virtue of the sealing device, static friction sealing is changed into dynamic friction sealing, passive sealing is changed into active sealing, and the sealing device has the advantages of reducing drilling cost, being long in service life of equipment, high in drilling efficiency and the like, is also suitable for high-temperature and high-pressure stratums and can avoid the problem that traditional static friction sealing fails.

The invention relates to the technical field of varicella, and particularly relates to a varicella kit. The varicella kit comprises a kit body and a kit cover, wherein a plurality of vertical plates are arranged in the kit body; the kit body is divided into a plurality of storage cavities by the vertical plates; a flexible pad is arranged at the lower end of the interior of each storage cavity; alimiting groove is formed in the upper side of each flexible pad; a refrigerating mechanism is arranged at the left side of the interior of each storage cavity; a temperature sensor is arranged at theright side of the interior of each storage cavity; a fixing mechanism is arranged in the middle part of the kit body, and comprises a fixing plate; a plurality of limiting holes are formed in the fixing plate and correspond to the limiting grooves; an adjusting cavity is formed in the fixing plate; an adjusting thread rod is arranged in the adjusting cavity, and is connected with a plurality of connecting rods by threads; an arc-shaped limiting plate is arranged in each limiting hole; and each connecting rod is connected with the corresponding arc-shaped limiting plate. By adopting the structure, the varicella kit has the advantages that the cold insulation effect is effectively improved, the number of failure reagents in the transportation process is reduced, and the cost investment in reagent and storage box purchasing is reduced.

The invention relates to the technical field of coating for exhaust pipe of engine, in particular to an anti-static type composite water-soluble organic silicon resin coating mixing with acetylene black for an exhaust pipe of a forklift engine and a preparation method thereof. The anti-static type composite water-soluble organic silicon resin coating mixing with the acetylene black for the exhaust pipe of the forklift engine is a water-soluble and environmental-protection coating and is free from volatile organic solvent and pollution to the environment. The added acetylene black has the advantages that the weight is light, the electrical conductivity is good, the reinforcing effect to the resin is good, corrosion resistance is achieved, the exhaust pipe can be prevented from generating the static, the mixing inorganic powders like nano-zirconia, expanded perlite and the like improve the heat resistance of the organic silicon resin, the high-temperature invalidation is prevented, and sulfonated asphalt powder can effectively improve the film building ability of the coating and effectively prevent the composite resin coating from spalling. When the anti-static type composite water-soluble organic silicon resin coating mixing with the acetylene black is applied to the exhaust pipe of the engine, the good protective property is presented, the coating does not spall or fracture after being used for a long time under the high-temperature condition, and the corrosion condition of the exhaust pipe is relieved effectively.

The invention discloses a wet clutch dualistic steel sheet body heat dissipation structure. The wet clutch dualistic steel sheet body heat dissipation structure comprises a wet clutch dualistic steelsheet body and oil grooves. The multiple integrally-formed oil grooves are evenly distributed in a wet clutch dualistic steel sheet body inner core. By means of the above manner and the provided wet clutch dualistic steel sheet body heat dissipation structure, the surface temperature of a wet clutch friction plate is reduced, failures of the wet clutch friction plate due to the high temperature are avoided, durability that the friction plate transmits larger torque is improved, and the application range of the wet clutch is greatly enlarged.

The invention relates to a high-power device heat dissipation device and method, belongs to the technical field of aerospace, and particularly relates to the technical field of heat dissipation of high-power devices on aerospace vehicles. The device and the method are matched with the layout of a printed board, a graphite heat diffusion plate is processed, and a boss is arranged in a position, corresponding to a high-power device on the printed board, on the heat diffusion plate; the printed board on which the components are welded is fixed on the frame; the distance between the top surface ofthe high-power device and the mounting surface of the heat diffusion plate is measured, the height of a heat dissipation boss of the graphite heat diffusion plate is machined according to the measured distance, when the heat conduction pad is mounted, heat conduction grease is additionally coated according to the distribution condition of the heat conduction grease on the high-power device, and heat conduction paths are increased for a heat dissipation device with a bonding pad at the belly.

The invention discloses a multi-shoe integral brake, belongs to a brake and particularly relates to a brake with a plurality of brake blocks. The multi-shoe integral brake is characterized in that a frame and a pusher are arranged on a base, a draw bar mechanism comprising rocker arms, a push-pull rod, a connecting rod and a lever is arranged on the frame, one end of the draw bar mechanism is connected with the pusher, and the other end of the draw bar mechanism is connected onto the frame; a brake chain is arranged in the frame, at least five brake shoes are linked with one another to form the brake chain, a circumference is formed by the brake chain in an encircled manner and clings to the surface of a brake drum in a floating manner, one end of the brake chain is connected onto the frame, the other end of the brake chain is connected onto the connecting rod, a shaft of the pusher moves up and down, the draw bar mechanism is pushed to swing around fulcrums on the tops of upright columns of the frame, and the brake chain can be driven to act. The multi-shoe integral brake has the advantages that the multi-shoe integral brake can run stably and reliably, shaking of the mechanism can be eliminated, floating clinging can be prevented after the brake chain is separated from the brake drum, a brake friction area can be enlarged, brake torque can be increased, pressure of an ejecting spring is low, power of the pusher can be reduced, a good brake effect can be realized, energy can be saved, and consumption can be reduced; high-temperature failure of brake linings can be prevented, and accordingly consumption of spare parts can be reduced.

The invention discloses a supporting apparatus for a flue gas denitration reactor. The supporting apparatus comprises a supporting apparatus body; the supporting apparatus body comprises a support having an upper base plate and a lower base plate, a locking pull bar, a limiting pull bar, a disc spring and a displacement indicator, wherein the locking pull bar is tightly fixed between the upper base plate and the lower base plate of the support in advance, the top and bottom ends of the limiting pull bar are respectively provided with a left-handed nut and a right-handed nut, a gap is provided between the nut at the bottom end of the limiting pull bar and the lower base plate of the support, the disc spring is installed between the upper base plate and the lower base plate of the support, and the displacement indicator is vertically arranged, matches with the disc spring and can display displacement of the disc spring. The apparatus provided in the invention has a simple structure, is convenient to install, has a protective cover, can adapt to open-air arrangement, does not need maintenance, examination or repair, can effectively compensate for deflection displacement of a structural beam generated under load-effect of the reactor, enables load-effect points to be maintained at a same horizontal plane and allows load to be linearly uniformly distributed.

The invention discloses a friction pair system of a double clutch. The friction pair system is characterized in that a friction material is adhered onto one surface of the steel disc bracket of each of friction plates, and the other surface of the steel disc bracket of each of the friction plates is a smooth surface; the friction plates are arranged and mounted on one side of a dual disc in sequence; all the surfaces, where the friction materials are mounted, of the friction plates directly face one side of the dual disc; and the steel disc bracket of a previous friction plate is in contact with the friction material of the last friction plate, and heat generated by friction among the components is dissipated. According to the friction pair system of the double clutch, the heat dissipationeffect of the clutch is effectively optimized, and the clutch is prevented from losing effectiveness due to the excessive temperature; meanwhile, the heat dissipation burden on the dual disc, the friction plates and the steel disc brackets is reduced, the design thickness of the friction pair system is reduced correspondingly, the axial length of the clutch is reduced, and the arrangeability of the clutch is obviously improved.

The invention relates to a large-sized curved surface revolving body heat-insulation material forming temperature control device and method. The method comprises the steps that when gas parameters exceed a set range during heating or drying, four air inlets which are uniformly arranged are opened to introduce inert gas, and a vacuum system is opened for air exhaust until the gas parameters are normal; and after monitored temperatures exceed a set threshold, two symmetrically arranged planning air inlets are opened to introduce inert gas with a temperature below the room temperature to achieveoxygen-insulation cooling. The large-sized curved surface revolving body heat-insulation material forming temperature control device and method solve the high temperature anomaly control problem of integral forming of a heat-insulation material which is of a large-sized curved surface revolving body structure, and avoids a resin implosion reaction, a resin high temperature failure and a resin temperature abnormal reaction failure, the control technology is simple to operate, parameters are controllable, and the large-sized curved surface revolving body heat-insulation material forming temperature control device and method are easy to implement.

The invention discloses an artificial leather boiler heat-conducting oil on-line detergent and a preparation method thereof. The detergent is prepared from the following raw materials in percentage by weight: CNOOC 150SN, base oil, dialkenyl succinimide, polyisobutenyl succinimide, high-molecular-weight succinimide, high-molecular-weight phenolic antioxidant, octyl / butyl diphenylamine antioxidant and defoaming agent. The detergent implements non-shutdown on-line cleaning in deed, has the advantages of low addition amount and more obvious cleaning effect, can dissolve the solid oil coke, can improve the heat conductivity and can lower the energy consumption, and the cleaning efficiency is up to higher than 98%. The detergent has the characteristics of mild cleaning property and high operational safety, does not influence the normal operation of the system, and does not have the phenomenon of tube blockage by dirt.

The invention relates to a high-frequency induction plasma water-cooled quartz lamp. The lamp is formed by assembly of an upper support, a powder feeding gun seat, a taper sleeve, a powder feeding gun, a locking threaded sleeve, an inner tube sleeve, an inner tube pressing sleeve, an intermediate support, a manifold, an intermediate tube upper pressing sleeve, a supporting plate, a lower support, supporting columns, an outer tube upper pressing sleeve, an outer tube lower pressing sleeve, a base, a supporting column protection sheath, a water cooled jacket, a transition plate, an intermediate tube lower pressing sleeve, an axis, an intermediate tube, a water inlet, an outer tube, induction coils, an inner tube, a water outlet, a pressure plate, a cooling gas inlet, an ionic gas inlet, an igniter 31 and a plurality of sealing rings. The high-frequency induction plasma water-cooled quartz lamp disclosed by the invention is used for high-frequency plasma multi-functional powder production equipment for manufacturing metal nano-powder, and has the advantages of being convenient to repair and maintain, good in cooling and heat dissipation effects, convenient to ignite, high in energy utilization rate, and the like.

The invention discloses a universal rotary dynamic sealing device and gyration equipment. The dynamic sealing device comprises a dynamic ring and a static ring, wherein the dynamic ring is fixed on a rotating part and makes gyration movement together with the rotating part; the static ring is connected with a static part through a universal rod, and the sealing surface of the static ring is attached to the sealing surface of the dynamic ring; the universal rod is composed of a bulb component and a threaded rod, the bulb end is connected with the static part, the threaded rod is connected with the static ring, springs and clamp nuts are installed on the universal rod, and the springs are tightly pressed on the static ring by the clamp nuts. The dynamic sealing device disclosed by the invention can effectively solve the problem of seal failure caused by radial runout of the rotating part and axial movement caused by thermal expansion, and has the characteristics of good sealing effect and, high-temperature resistance and the like.

The invention discloses a reliable emergency cut-off device of a valve in a high-temperature environment for a low-temperature flammable medium tank. The device comprises a cut-off valve body, wherein a valve body inlet inner cavity connected to the outlet of a low-temperature medium storage tank and a valve body outlet inner cavity connected to a low-temperature medium conveying pipeline are arranged in the valve body; the inlet inner cavity and the outlet inner cavity communicate through a connecting channel; a valve clack which is arranged on the inlet inner cavity side of the valve body is driven by a piston rod to block or open the connecting channel, and a sealing member is arranged on the valve clack; a temperature-controlling channel is further arranged on the valve body, the temperature-controlling channel communicates with the inlet inner cavity of the valve body and is connected to a deflating pipeline, and a deflating valve is arranged on the deflating pipeline. The device disclosed by the invention is simple in structure and effective, and avoids severe consequences caused by failure of an emergency cut-off valve. Furthermore, besides a main valve, the structure of the device disclosed by the invention is further suitable for any one valve connected to the low-temperature storage tank, for example, a fullness measuring valve and an instrument valve.

The invention discloses a silicon carbide epitaxial furnace reaction chamber. The reaction chamber comprises a quartz tube, a first sealing flange, a second sealing flange and a sealing piece, a water cooling jacket is arranged on the periphery of the quartz tube, a reaction device is arranged in the quartz tube, the first sealing flange is arranged on the periphery of the quartz tube in a sleeving mode and abuts against the water cooling jacket, the second sealing flange is connected with the first sealing flange, the sealing piece is clamped between the first sealing flange and the second sealing flange, a heat insulation barrel is arranged in the second sealing flange, and the end part of the heat insulation barrel is propped against the reaction device. The reaction chamber has the advantages of simple and reliable structure and the like, and high-temperature failure of the sealing ring is prevented.

The invention provides a flushing system and a flushing method for a secondary circuit of a high-temperature gas cooled reactor, and belongs to the technical field of nuclear power. The flushing system includes: a steam turbine; a condenser; a condensate pump; a fine treatment device; a deaerator; a feed pump; an electric boiler; a shaft seal; a vacuumizing device; a steam generator; a filter screen; and valves and pipelines. When the steam generator is isolated, condensate water passes through the deaerator and then the feed pump and returns to the condenser to carry out secondary loop cold-state circulating flushing. Meanwhile, the electric boiler is started, a steam pipeline is subjected to hot-state flushing, water in the condenser is heated to improve the flushing effect of the condensate water, supplied water is heated through the temperature rise of the deaerator, and secondary loop hot-state circulating flushing is achieved. The fine treatment device can be put into use to rapidly improve the water quality, so that the water inlet requirement of the steam generator is met, and the washing period of a whole unit is shortened.

The invention discloses an artificial leather boiler heat-conducting oil on-line detergent and a preparation method thereof. The detergent is prepared from the following raw materials in percentage by weight: CNOOC 150SN, base oil, dialkenyl succinimide, polyisobutenyl succinimide, high-molecular-weight succinimide, high-molecular-weight phenolic antioxidant, octyl / butyl diphenylamine antioxidant and defoaming agent. The detergent implements non-shutdown on-line cleaning in deed, has the advantages of low addition amount and more obvious cleaning effect, can dissolve the solid oil coke, can improve the heat conductivity and can lower the energy consumption, and the cleaning efficiency is up to higher than 98%. The detergent has the characteristics of mild cleaning property and high operational safety, does not influence the normal operation of the system, and does not have the phenomenon of tube blockage by dirt.

The invention relates to a heat dissipation device and method for high-power devices, belonging to the technical field of aerospace, in particular to the technical field of heat dissipation for high-power devices on aerospace vehicles. The present invention cooperates with the layout of the printed board, processes the graphite heat expansion plate, and makes a boss on the heat expansion plate corresponding to the position of the high-power device on the printed board; fixes the printed board with the welded components on the frame, and measures the high power The distance between the top surface of the device and the installation surface of the heat expansion plate is based on the measured distance, and the height of the heat dissipation boss of the graphite heat expansion plate is matched. Grease, for heat dissipation devices with pads on the abdomen, increase the heat conduction path.

The invention discloses a fully automatic release mechanism for high-temperature molten matter and its control method. The release mechanism of the invention includes a temporary storage container; the upstream of the temporary storage container is connected to a low-pressure container equipped with a melting furnace through an upstream release pipeline, and A protective gate valve and an upstream main sealing valve are sequentially provided on the upstream release pipeline from the low-pressure container to the temporary storage container; a downstream release pipeline is provided downstream of the temporary storage container, and a melt release pipe is provided on the downstream release pipeline. valve and a downstream main sealing valve, the melt release valve is arranged on a side close to the temporary storage container, and the downstream main sealing valve is arranged on a side away from the temporary storage container; the temporary storage container and its The downstream devices are all installed in the bottom high-pressure container; the temporary storage container communicates with the low-pressure container, the bottom high-pressure container and the pressure source respectively through pressure balance pipelines. The invention breaks through the difficulty of transferring high-temperature molten matter from a low-pressure environment to a high-pressure environment.

The invention provides a radial horizontal well sealing device, drilling equipment and drilling method, and relates to the technical field of geological drilling equipment. Drilling mechanism; the sealing element is an active rolling dynamic seal structure, which is arranged between the sealing shell and the injection pipe; both the rotary drilling mechanism and the power feeding mechanism use high-pressure jet fluid as the power source to transmit rotational power and Feed power; drilling equipment includes tubing, steering gear, jet drill bit and sealing device. The sealing device of the present invention changes from a static friction seal to a dynamic friction seal, and from a passive seal to an active seal. It has the advantages of reducing drilling costs, long equipment life, and high drilling efficiency. It is also suitable for high-temperature and high-pressure formations and can avoid the failure of traditional static friction seals. .

The invention discloses a multi-shoe integral brake, belongs to a brake and particularly relates to a brake with a plurality of brake blocks. The multi-shoe integral brake is characterized in that a frame and a pusher are arranged on a base, a draw bar mechanism comprising rocker arms, a push-pull rod, a connecting rod and a lever is arranged on the frame, one end of the draw bar mechanism is connected with the pusher, and the other end of the draw bar mechanism is connected onto the frame; a brake chain is arranged in the frame, at least five brake shoes are linked with one another to form the brake chain, a circumference is formed by the brake chain in an encircled manner and clings to the surface of a brake drum in a floating manner, one end of the brake chain is connected onto the frame, the other end of the brake chain is connected onto the connecting rod, a shaft of the pusher moves up and down, the draw bar mechanism is pushed to swing around fulcrums on the tops of upright columns of the frame, and the brake chain can be driven to act. The multi-shoe integral brake has the advantages that the multi-shoe integral brake can run stably and reliably, shaking of the mechanism can be eliminated, floating clinging can be prevented after the brake chain is separated from the brake drum, a brake friction area can be enlarged, brake torque can be increased, pressure of an ejecting spring is low, power of the pusher can be reduced, a good brake effect can be realized, energy can be saved, and consumption can be reduced; high-temperature failure of brake linings can be prevented, and accordingly consumption of spare parts can be reduced.

The invention discloses a full-premixing combustion device and a full-premixing combustion boiler. The full-premixing combustion device comprises a first combustor, a second combustor and an ignitionpin, wherein the first combustor is provided with a combustion face, the first combustor can input premixed gas and make the premixed gas to be combusted on the combustion face, the second combustor is provided with a gas output portion, the gas output portion of the second combustor is located on the upstream of the combustion face, the ignition pin is located on the downstream of the combustionface, and the ignition pin is used for lighting gas output by the gas output portion. According to the full-premixing combustion device and the full-premixing combustion boiler, the ignition structurecan be cooled reliably, and high-temperature failure of the ignition structure is avoided.

The invention provides a catcher for particulate matters in gas and a motor vehicle tail gas particulate matter catcher. The catcher for the particulate matters in the gas comprises a shell, a gas inlet pipe, a plurality of porous partition plates and a gas outlet pipe, the gas inlet pipe is arranged at the lower portion of one side of the shell and serves as an inlet for the gas containing the particulate matters, the plurality of porous partition plates are arranged in the shell and are horizontally arranged in a cavity in a layered mode from bottom to top, a plurality of purification unitsare arranged on each layer of porous partition plate, the gas outlet pipe is arranged at the upper portion of the other side of the shell and serves as an outlet for the filtered gas. In the motor vehicle tail gas particulate matter catcher, air flow is fully contacted with the purification units, so that the filtering efficiency is improved, meanwhile, the cross sectional area is large when the gas pass through the purification units, so that the back pressure is reduced, the purification units adopt a high-temperature-resistant material, so that high-temperature loss in the tail gas environment is avoided.

The invention relates to the technical field of petrochemical equipment, in particular to a shell pass exhaust and pollution discharge structure suitable for a vertical shell-and-tube waste boiler heat exchanger, an upper flow guide cover communicated with a shell pass space is arranged on the outer side of the upper end part of a shell, is provided with a medium outlet, and extends across an upper tube plate to cover a part of an upper tube box; an exhaust port is formed in a position, higher than the bottom surface of the upper tube plate, of the upper flow guide cover; a lower flow guide cover communicated with the shell pass space is arranged on the outer side of the lower end of the shell, a medium inlet is formed in the lower flow guide cover, the lower flow guide cover extends and crosses the lower tube plate to cover part of the lower tube box, and a drain outlet is formed in the position, lower than the top face of the lower tube plate, of the lower flow guide cover. The whole shell pass is filled with shell pass media as much as possible through the upper and lower flow guide cover structures, the effect of balancing the temperature difference is achieved, the medium flow short circuit phenomenon possibly occurring due to the fact that a medium inlet and outlet is limited by a shell and tube plate connecting structure can be avoided, and local high-temperature failure of the connecting position of the shell and the tube plate is effectively avoided.

The invention aims to provide a vertical and horizontal efficient energy-saving vacuum controlled atmosphere furnace for continuous production with high space utilization rate, high heating speed, high product cooling speed, short production period and avoidance of great energy waste caused by repeated heating and cooling during production. The furnace consists of a feeding chamber, a reaction chamber and a discharge chamber, wherein the feeding chamber is positioned below the reaction chamber, and the feeding chamber and the reaction chamber form a vertical structure; and the discharge chamber is positioned on the lateral surface of the reaction chamber, and the discharge chamber and the reaction chamber form a horizontal structure so as to form a vertical and horizontal structure and improve the space utilization rate. The furnace realizes heat insulation and seal of each chamber by adopting a heat insulation sealing door, and has high heating speed and high energy efficiency by adopting an inductive heating mode; the product is cooled by adopting a circulating air cooling system; and the vertical and horizontal efficient energy-saving vacuum controlled atmosphere furnace for continuous production can perform continuous production only by one-time heating so as to improve the production efficiency, reduce the production cost and save a large amount of energy.

The invention provides a high-temperature gas-cooled reactor secondary-circuit flushing system and flushing method, belonging to the technical field of nuclear power. The flushing system comprises: a steam turbine; a condenser; a condensate pump; a finishing device; a deaerator; Shaft seals; vacuuming devices; steam generators; strainers; valves and pipes. When the steam generator is isolated, the condensed water passes through the deaerator and then returns to the condenser through the feed water pump for secondary circuit cold-state circulating flushing. At the same time, the electric boiler is started to perform hot flushing on the steam pipeline, heating the water in the condenser, improving the flushing effect of the condensate water, and heating the feed water through the deaerator to realize the hot circulating flushing of the secondary circuit. It can be put into a finishing device to quickly improve the water quality to meet the water inlet requirements of the steam generator and reduce the entire flushing cycle of the unit.

The invention provides a water level detecting device, which comprises a floating body, a magnet, a reed switch, a base and a rotating mechanism mounted on the base, wherein the rotating mechanism comprises a first fixing part and a second fixing part; the floating body is fixed to the first fixing part of the rotating mechanism; the magnet is fixed to the second fixing part of the rotating mechanism; the magnet is located at the first side of the base; the reed switch is located at the second side of the base; and the sensing range of the reed switch covers one part of the movement track of the magnet during the rotation process. The water level detecting device provided in the invention has the beneficial effects that the device can be prevented from failing due to accumulation of scale,and the reed switch is disposed outside, failure due to high temperature can be prevented, and replacement is easy.

The invention relates to a lamp respirator and a lamp with the same. The lamp respirator comprises a permeable cylinder (3) communicated with an inner cavity of a lamp casing (6) and a hood body sealed and covered on the permeable cylinder (3); and the hood body is provided with an exhaust hole communicated with the permeable cylinder (3) and the outside. The permeable cylinder (3) is provided with an exhaust channel (3b) communicated with inside gas; the exhaust channel (3b) is provided with an air inlet end (3f) and an exhaust end (3a); and the air inlet end (3f) is connected with the lamp in a sealing way. The hood body comprises an inner hood (2); clearances are respectively reserved between the inner wall at the top of the inner hood (2) and the exhaust end (3a) and between the inner circumferential surface of the inner hood (2) and the outer circumferential surface of the permeable cylinder (3); and the circumferential wall of the inner hood (2) is provided with at least two first exhaust holes. With the lamp respirator, the lamp can exhaust harmful gases inside a lamp cavity in time, balance the air pressure inside the lamp, and is safer and more reliable during use.