33results about How to "Avoid heating up" patented technology

The invention discloses a wear-resistant flame-retardant fireproof cable and a preparation method thereof, and relates to the technical field of fireproof cables, the wear-resistant flame-retardant fireproof cable comprises six wire cores, each wire core is composed of a copper stranded wire and a cross-linked polyethylene pipe, the outer surface of each wire core is fixedly connected with a special-shaped plastic pipe, and the outer surface of each special-shaped plastic pipe is fixedly connected with a cable core. The outer surface of the special-shaped plastic tube is fixedly connected with an inner sliding strip, and the outer surface of the inner sliding strip is fixedly connected with a heat shrink tube. According to the wear-resistant flame-retardant fireproof cable and the preparation method thereof, the supporting mechanism is used for guiding gas in the ventilation pipes into the gas flow channel, the number of the ventilation pipes is two, so that guiding-in and guiding-out of cooling gas in the heat shrink tube are controlled, the telescopic pipe is arranged on the outer surface of the sealing mechanism in a sleeving mode, and when the cable is dragged and laid on the ground, the cable is not prone to falling off. The telescopic pipe effectively protects the ventilation pipe and the sealing mechanism, and the problem of how to avoid cable combustion in a cooling mode so as to reduce loss is solved.

The invention relates to the technical field of glass production, in particular to a kiln waste heat utilization semiconductor thermoelectric power generation device and system. The device comprises a connecting ring arranged on the outer side of a circulating water pipe; the cold end conduction sheet is connected to the connecting ring and is used for transmitting the cooling capacity of the circulating water pipe; the hot end conduction sheet is connected to a hot end contact surface of the glass kiln and is used for transferring heat of the glass kiln; and the semiconductor power generation module is connected between the cold-end conduction sheet and the hot-end conduction sheet and is used for generating power by utilizing the temperature difference between the cold-end conduction sheet and the hot-end conduction sheet. The semiconductor power generation module is arranged, power is generated according to the temperature difference between the glass kiln and the circulating water pipe, the effect of semiconductor temperature difference power generation through waste heat recycling in the glass line production process is achieved, redundant heat is effectively utilized, plant temperature rise is prevented, and harm to workers is reduced.

This invention relates to the field of radial thrust bearing technology, specifically a radial thrust bearing comprising an inner ring, an outer ring, a cage, and balls, and a circulation mechanism. The inner ring is fitted inside the outer ring, and the balls are rolled and embedded between the inner and outer rings. The cage is installed between the inner and outer rings, with the balls located on the cage. The circulation mechanism is installed on both sides of the outer ring. This invention solves the problem that existing bearings still generate high internal temperatures at high speeds. High temperatures reduce the viscosity of the lubricating oil, leading to a thinner oil film, increased friction, and ultimately, accelerated bearing temperature rise. Excessive bearing operating temperature can cause the bearing to seize due to thermal stress. This invention achieves uniform heat transfer from the lubricating oil at high speeds, preventing the bearing from seizing due to excessive operating temperature.

The embodiment of the present application provides a heat dissipation cabinet and communication equipment. The heat dissipation cabinet includes a cabinet body, a cabinet door and a baffle. The cabinet body includes a top wall, a bottom wall and a side wall connected between the top wall and the bottom wall. The cabinet door is installed on the cabinet body and is located at the position of the side wall. An air outlet channel is provided in the cabinet body near the top wall. The cabinet door is provided with an air inlet component and an air outlet component. The air outlet component is located between the air inlet component and the top wall and is located at one end of the air outlet channel. An electronic device placement area is provided in the cabinet body. The baffle is provided between the electronic device placement area and the cabinet door. The baffle includes a first opening so that the air entering through the air inlet component directly enters the electronic device placement area through the first opening. The heat dissipation cabinet provided by the embodiment of the present application improves the heat dissipation effect of the heat dissipation cabinet and ensures the heat dissipation effect of the electronic devices in the heat dissipation cabinet.

A display device and a method for driving the display device are provided. The display device includes: a display panel including gate lines and data lines; a gate driver for outputting gate signals to the gate lines; a data driver for outputting data voltages to the data lines; and a power voltage generator. The power voltage generator generates a gate on-state voltage, a gate off-state voltage, and a gate clock signal switching between the gate on-state voltage and the gate off-state voltage, detects the current level of the gate clock current, and cuts off power to the display device when the count of the gate clock current higher than or equal to a first current level is greater than or equal to a reference count, and cuts off power to the display device when the gate clock current is higher than or equal to a second current level higher than the first current level in the initial frame after the display device is turned on.

This invention proposes a large-scale, shallow, circular silo-type self-regulating pressure system, comprising a silo body. Its key feature is the inclusion of an elastic device that can contract or expand under pressure. This elastic device is located at the top of the silo body and is connected to an air inlet pipe. The end of the air inlet pipe extends out of the silo body and is connected to an exhaust pipe and an intake pipe, respectively. The exhaust pipe is equipped with a one-way exhaust valve, and the intake pipe is equipped with a one-way intake valve. The end of the intake pipe is connected to a high-pressure gas source, providing gas at a temperature of 15 to 25°C. This invention effectively balances the pressure inside and outside the silo while also considering temperature-controlled grain storage processes, preventing overheating inside the silo while balancing the pressure difference. Furthermore, it is easy to install and can be retracted when not in use to reduce space occupancy within the silo.

The embodiment of the invention provides double-computer parallel equipment with a built-in heat dissipation channel optimized structure, and relates to the field of computer parallel equipment. The parallel equipment comprises a parallel equipment main body and heat dissipation holes, a plurality of heat dissipation holes are formed in two sides of the parallel equipment main body; the LED lamp further comprises a heat conduction assembly, an installation base, a flow control mechanism, a heat dissipation part and a fan. The number of the heat conduction assemblies is two, the heat conduction assemblies are installed in the parallel equipment body, the installation base is installed in the parallel equipment body, and the flow control mechanism is installed in the installation base. The heat dissipation part is installed in the parallel equipment body and located on the side face of the installation base. And the fan is connected with the heat dissipation part. According to the equipment, the cooling mode can be selected according to requirements, the flexibility of the equipment is improved, meanwhile, intermittent operation can be achieved through the water cooling mode, and cooling liquid temperature rise and air cooling efficiency reduction caused by long-term use are avoided.

This application relates to a time compensation method, a battery management system, a vehicle, a server, and a service system. It includes: obtaining a temperature difference threshold relationship, which includes the correspondence between temperature difference ranges and temperature thresholds; compensating for the battery's static dormancy time based on the temperature difference threshold relationship; where the temperature difference range characterizes the degree to which the battery's temperature deviated from a reference temperature during the previous power-off, and the temperature threshold characterizes the amount of temperature change corresponding to the duration of static dormancy during the power-off to power-on period within the corresponding temperature difference range. This method can compensate for the battery's static dormancy time in the event of an RTC failure, thereby enabling the BMS's functions such as SOC static correction, SOH online calculation, and static equalization calculation to operate normally.

The invention relates to the technical field of valve driving, in particular to a high-pressure opening and low-pressure maintaining valve driving circuit based on a monostable trigger, which comprises a monostable trigger output module and a valve driving module, and the output end of the monostable trigger output module is connected with the input end of the valve driving module. The monostable trigger output module inputs the high-level control signal into the valve driving module to drive the electromagnetic valve, the monostable trigger output module is used for generating the high-level control signal with a fixed time length, and the valve driving module is used for driving the electromagnetic valve; through general electronic devices, the high-voltage opening time can be controlled, it is guaranteed that the electromagnetic valve is opened stably and kept in an opening state under low voltage, the problem that the electromagnetic valve is in a high-voltage closing state for a long time, power consumption is too large, and consequently temperature rise is caused is solved, loss of the electromagnetic valve is reduced, and the service life is prolonged.

The application discloses a kind of chemical fiber spinning system roll body cleaning device and spinning system, including, support component, be set in the roll body around scrollable;Cleaning component is connected with support component, and cleaning component is contacted with the lateral wall of roll body;Spray component is connected with support component or cleaning component, for spraying lateral wall and / or cleaning component of roll body.The beneficial effects brought by the application: by increasing spraying device, the humidity of the contact surface of roll body and cleaning component is improved, the temperature of cleaning component and lateral wall of roll body is prevented from rising, the antistatic effect is improved, and the lubricating effect is played, the friction between the surface of cleaning component and roll body is reduced, and then the wear between the two is reduced, so that the surface finish of roll body remains good, and the needs of long-period production operation are satisfied.

The utility model belongs to the technical field of ozone generators, and particularly relates to an auxiliary cooling device for an ozone generator, which comprises a water tank, an ozone generator, a temperature sensor and a controller, wherein the cooling water is suitable for infiltrating an oxygen conveying pipe connected with an ozone generator so as to cool ozone in the oxygen conveying pipe; the stirring mechanism is arranged in the water tank and suitable for stirring the cooling water subjected to heat exchange with the oxygen conveying pipe so as to cool the cooling water, and by arranging the stirring mechanism, in the process of cooling the oxygen conveying pipe through the cooling water, the cooling water is continuously stirred, so that the cooling water rotates in the water tank, and the cooling water is cooled; therefore, the cooling water is prevented from being heated after long-time contact with the oxygen catheter.

The invention provides an engine hot test run DIC strain measurement system protection device and an installation and use method thereof. The protection device comprises a protection cover assembly, a posture adjusting assembly and a support assembly. The protective cover assembly is provided with a closed space for installing the DIC image acquisition camera, and the side wall of the protective cover assembly is provided with a high-temperature-resistant transparent window plate and a thermal insulation layer for thermal protection, so that the DIC image acquisition camera is prevented from being heated due to environmental radiation to influence the image acquisition effect; the posture adjusting assembly comprises a pitching posture adjusting table and a horizontal posture adjusting seat, the protective cover assembly is connected to the pitching posture adjusting table, and the pitching posture adjusting table is rotationally connected to the horizontal posture adjusting seat; the support assembly comprises a supporting frame and a position adjusting plate, and the position adjusting plate is movably connected to the supporting frame. The horizontal posture adjusting seat is rotationally connected to the position adjusting plate and is provided with a vibration reduction piece, and the comprehensive protection effect on the heat-vibration-explosion environment is achieved; the horizontal and pitching angles of image acquisition can be adjusted, the acquisition flexibility is improved, and the environmental adaptability of the DIC strain measurement system is improved.

The utility model discloses an air conditioner wire harness convenient to hang, relates to the technical field of wire harness hanging, and aims to solve the technical problem that a wire harness protective sleeve is easily damaged by friction due to direct contact between an overlong wire harness and the inner wall of a through hole and between the overlong wire harness and a notch. A plurality of protruding parts are arranged on the surface of the fixing base, through grooves are formed in the protruding parts, circular shafts are fixed in the through grooves, arc-shaped blocks are slidably connected to the surfaces of the circular shafts, springs are connected to the surfaces of the circular shafts in a sleeving mode, the top ends of the springs are fixedly connected with the lower surfaces of the arc-shaped blocks, shifting pieces are arranged on one sides of the arc-shaped blocks, and a placing assembly is arranged on the surface of the fixing base. The placing assembly comprises a placing base, a cavity is formed in the center of the placing base, a plurality of ejector rods are arranged on the inner wall of the cavity at equal intervals, and a disc is fixedly connected to the top ends of the ejector rods. The wire harness placing assembly has the advantages that the wire harness can be placed in the placing assembly, and the wire harness is prevented from being in direct contact with the rough surface of the through hole and the notch.

The utility model relates to the technical field of water cooling equipment, and discloses a cooling and drying device for straw production, which comprises a cooling tank, support legs are fixedly mounted at the bottom of the cooling tank, a water outlet is arranged at the bottom of the cooling tank, a transmission circulation component is arranged on the cooling tank and comprises a transmission part and a circulation part, and the transmission part is connected with the circulation part. The transmission part is arranged on the cooling tank, the circulation part is arranged on the cooling tank, a transmission motor drives the conveying rollers at the output end to rotate, a second gear can be driven to rotate when the motor drives one set of conveying rollers to rotate, an impeller is arranged in the outer circulation pipe, and the output end of the impeller is sleeved with a first gear. Therefore, the second gear drives the first gear to rotate, the impeller is driven to rotate, cooling water in the cooling tank is driven to integrally have a circulating effect, and water in the water tank is prevented from being gradually heated.

The utility model provides a power supply aging test device, and belongs to the technical field of power supply test. The power supply aging test device comprises a main body and a fixing mechanism, the main body comprises a box body, a box door is hinged to one side of the box body through a pair of hinges, sliding rails are installed on the two sides of the bottom end in the box body, a test plate is installed between the pair of sliding rails in a sliding mode, and a dry powder extinguisher is fixedly installed at the top end in the box body. Smoke sensors are installed on the two sides of the upper end of the interior of the box body, the fixing mechanism comprises a pair of installation frames, the pair of installation frames are arranged on the two sides of the interior of the box body respectively, a two-way lead screw is rotationally connected between the pair of installation frames, sliding rods are fixedly installed on the portions, located on the two sides of the two-way lead screw, between the pair of installation frames, and the two ends of the two-way lead screw are sleeved with sliding blocks. According to the power supply aging test device, the practicability of the power supply aging test device can be effectively improved, and the power supply aging test device has high practical value.

The invention belongs to the technical field of corn powder processing, and particularly relates to grinding equipment for corn powder processing and an operation method thereof.The grinding equipment comprises a box body, two first sliding shafts are symmetrically and fixedly connected to the inner wall of the box body, connecting blocks are slidably connected to the outer walls of the two first sliding shafts, and the outer walls of the two first sliding shafts are sleeved with first springs; the top of the first spring is fixedly connected with the connecting block, and the bottom of the first spring is fixedly connected with the box body; according to the grinding equipment for corn powder processing and the operation method of the grinding equipment, the reciprocating lead screw is controlled by the second motor to rotate clockwise, the material containing barrel can be driven to rotate, centrifugal force is formed through the rotating material containing barrel, water doped in corn particles can be thrown out, the reciprocating lead screw is controlled by the second motor to rotate anticlockwise, and the water content in the corn particles can be reduced. And through cooperation with limiting of the clamping blocks, the material containing barrel can move up and down, the discharging opening is opened, and corn particles in the material containing barrel can fall off conveniently.

The invention provides tembotrione raw material low-temperature crushing equipment, and relates to the field of pesticides and herbicides. The tembotrione raw material low-temperature crushing equipment comprises a low-temperature crushing assembly, a dispersing assembly and a bottom shell, a cyclone assembly is installed between the bottom shell and the dispersing assembly, a motor A and a motor B are fixedly installed in the bottom shell, the motor A is used for operation of the low-temperature crushing assembly, and the motor B is used for driving the cyclone assembly to operate. According to the tembotrione raw material low-temperature crushing equipment, by arranging the dispersing assembly and the air exhaust assembly, powder can be sucked while being blown under the cooperation of the cyclone assembly, and therefore the effects that powder tembotrione can be rapidly separated, and leakage is not prone to occurring during sealing machining can be achieved; therefore, the effect of low-temperature crushing is achieved during primary crushing, volatilization is prevented, the grinding wheel and the dispersing blades are arranged, next-step crushing is facilitated, and temperature rise caused by grinding is avoided.

The utility model provides a battery monomer fixing device, and relates to the technical field of battery testing, the battery monomer fixing device comprises a fixing seat, a driving pump and two clamping plates arranged oppositely, the two clamping plates are arranged on the fixing seat in a sliding manner, and the clamping plates are internally provided with first cavities for accommodating cooling liquid; the driving pump communicates with the first cavity channels of the two clamping plates and is used for pumping cooling liquid into the first cavity channels. According to the invention, the battery monomers can be cooled through the internal cooling liquid while the battery monomers are fixed, so that the temperature rise of the battery caused by frequent charging and discharging of the battery monomers is reduced or even avoided, and the possibility of thermal runaway and even explosion of the battery in the test process is reduced; and life and property safety in the test process is ensured.

The utility model relates to the technical field of corn seed production, and provides a corn seed production pollination machine which comprises a box body and a pollination mechanism, according to the corn pollination machine, the refrigerator, the cooling barrel and the fan are arranged, the refrigerator cools cooling liquid, feeds the cooling liquid into the cooling barrel for circulation and cools the storage barrel, the situation that the interior of the pollination machine is heated, and consequently corn pollen is inactivated is avoided, and the fan discharges heat generated by the refrigerator; after the filaments are inserted into the spray head, pollination of the internal filaments is facilitated, and the success rate of pollination is increased; the silica gel back cushion is arranged, the back cushion is attached to the back, the silica gel back cushion has certain elasticity and softness, buffering can be provided when the back is impacted, the comfort of an operator is improved, the hanging frame, the hanging rings, the hooks and the straps are arranged, the hooks are hung on the different hanging rings, the positions of the straps are adjusted, and the relative width of the straps is changed.

The utility model relates to an anti-vibration pad for an electric scroll compressor of a new energy automobile, belongs to the technical field of compressor vibration reduction, and solves the problems of automobile body vibration and noise caused by vibration of the compressor of the new energy automobile in the prior art. The anti-vibration pad is of an integrated structure. The anti-vibration pad comprises a buffering part used for buffering and vibration isolation and a mounting part. The buffer part and the mounting part are of cylindrical structures; the diameter of the buffer part is greater than that of the mounting part; the upper surface and the lower surface of the buffering part are provided with a plurality of first trapezoidal vibration reduction grooves and second trapezoidal vibration reduction grooves, and the first trapezoidal vibration reduction grooves and the second trapezoidal vibration reduction grooves are arrayed at equal intervals in the circumferential direction of the buffering part. An annular damping groove is formed in the outer side surface of the buffer part; a star-shaped mounting hole extending in the axis direction of the anti-vibration pad is formed in the center of the anti-vibration pad. The star-shaped mounting hole penetrates through the buffer part and the mounting part and is used for mounting a fixing screw. According to the utility model, the effective vibration reduction of the electric scroll compressor is realized, and the noise generated by the operation of the compressor is reduced.

The utility model discloses a three -way detector of element analyzer, including pool body, resistance bridge, shell, power supply line and signal line, pool body: for the detector main part, for the corrosion -resistant high -purity brass material, the surface has screw hole for connecting shell, and inside has three -way gas passage. Three gas passage inlets are connected respectively helium gas transmission pipeline one, helium gas reference gas input pipeline, helium gas transmission pipeline two. Three gas passage outlets are connected respectively helium gas carrier gas output pipeline one, helium gas reference gas output pipeline, helium gas carrier gas output pipeline two, resistance bridge: be located the detector pool body top, and every two resistances are a group and are screwed into the gas passage, and 6 resistances pass through parallel and constitute the bridge. Power supply line: provide test power supply for resistance, signal line: gather the signal change of resistance, shell: 316 stainless steel material, and the surface has 2 through -holes, and is fixed to the pool body through the screw of screwing into through -hole, plays the role of protecting the detector.

The utility model discloses a sample uniform mixing and stirring device of an on-line particle counting system, and relates to the technical field of on-line particle counting systems. The device comprises a uniform mixing box, an air pump and a top cover, the top cover is clamped and fixed at the top of the uniform mixing box, a limiting plate is inserted in the uniform mixing box, a plurality of breather pipes are welded at the bottom of the limiting plate in a penetrating manner, the air pump is clamped and fixed at the top of the top cover, and a filter assembly is arranged on one side of the air pump. Through the arrangement of the uniform mixing box, the air pump and the top cover, the problems that when an oil sample is uniformly mixed and stirred, the oil sample needs to be uniformly mixed in a stirring device and then poured into an online particle counting system, time and labor are wasted, the monitoring speed is reduced, and when the oil sample is stirred by the device, the oil sample cannot be uniformly mixed. And friction generated by stirring blades and particles in the oil can heat an oil sample, so that the property of the oil sample is possibly influenced, and the accuracy of a monitoring result is reduced.

This invention discloses an integrated digital PCR system and its usage method. The system comprises a high-density microcavity array digital PCR chip with an integrated cavity, an optical detection module, a hot water circulation temperature control module, a fluid control module, and a central control module. When applied to nucleic acid sample detection, the digital PCR chip is first fixed on the stage of the optical detection module, and connecting tubes for the sample tubes and hot water tank are installed at each chip interface. Then, the central control module is activated, and relevant parameters of the control program are set. The control program then controls the fluid control module, hot water circulation temperature control module, and optical detection module to sequentially perform operations such as sample filling, sample discretization, hot water circulation amplification, chip scanning and recording, and data analysis. Based on the combination of the microcavity array and integrated cavity structure of the digital PCR chip, this system allows the entire digital PCR detection process to be completed on a single instrument, improving detection efficiency and result reliability.

The application discloses a manufacturing method for aluminum alloy door and window profiles, and relates to the technical field of aluminum profile processing.The manufacturing method comprises an extrusion cylinder, an upper die and a lower die which are installed on an extrusion machine body, a liquid nitrogen spraying device for cooling a discharge port of the lower die is arranged on the extrusion cylinder, and the extrusion cylinder, the upper die and the lower die are internally provided with a cooling pipe network which is in communication.The liquid nitrogen filling device is arranged to make liquid nitrogen flow through the inner walls of the extrusion cylinder and the upper die through a first cooling main channel, a first inlet channel, a second cooling main channel, a first cooling branch channel, a central cooling cavity, a second cooling branch channel, a third cooling main channel, a first outlet channel, a third outlet channel and a fifth cooling main channel, so that the extrusion cylinder and the upper die are cooled through heat conduction, the temperature of the inner cavity of the extrusion cylinder and the branch outlet of the upper die is prevented from being too high, the profile is prevented from being subjected to heat and then being subjected to mechanical property decline, surface oxidation change or even intense heat, and the production qualified rate of the aluminum profile is ensured.

The utility model discloses an assembly type building wall body with a reinforcing component, which relates to the technical field of assembly type building wall bodies, and comprises a plurality of wall body keels, the outer walls of the wall body keels are fixedly connected with a plurality of sound-absorbing sponges, a plurality of threading holes are arranged at the central axis of the inner walls of the sound-absorbing sponges, and the reinforcing component is fixedly connected with the wall body keels. By arranging the sound absorption sponge on the wall keel, when equipment needs to be installed, the permeable plate is attached to the wall base, the top pressing block is pressed on the top pressing plate, then the connecting shaft close to one side of the permeable plate is installed in the top pressing block, and the isolation wall body is installed to be combined with the permeable plate. And then a plurality of expansion bolts are rotated to fit and compact the equipment, and then a plurality of rotating plates on a connecting shaft on the other side are inwards extruded to compress elastic arc plates, so that the equipment can be firmer after being mounted, meanwhile, the equipment is more convenient to reinforce, and the working time is shortened.

The invention discloses a novel ring forging blank-making hydraulic machine, and particularly relates to the technical field of forging and pressing manufacturing, the novel ring forging blank-making hydraulic machine comprises a base, a forging and pressing assembly is arranged on the base, the forging and pressing assembly comprises a supporting box body arranged at the top of the base, a plurality of forging and pressing cavities are formed in the supporting box body in a penetrating mode, and a transverse plate is fixedly arranged on one side of the surface of the base. The pressing disc and the reinforced center material supporting ejector rod can be located at the top of a workpiece, a reinforced supporting sliding plate can easily move downwards continuously to flatten a forge piece, the pressing disc is stressed to be attached to the workpiece, a spring is compressed, the leveling function is achieved when the workpiece is forged and pressed, the workpiece can be horizontally placed, and the situation that the forming quality of the workpiece is poor is avoided; after punching is completed, the punch retreats, the situation that the punch is heated due to too long retention time is avoided, the reinforced center material supporting ejector rod adsorbs punched waste materials during punching, the pressing disc pushes out the waste materials adsorbed on the reinforced center material supporting ejector rod through elastic driving of the spring, and continuous operation of the device is easy.

The utility model relates to the technical field of hemerocallis citrina processing, and discloses a cooling device for hemerocallis citrina processing, which comprises a cooling water tank, a second conveying belt is arranged in the middle of the inner wall of the cooling water tank, the left side of the top of the cooling water tank is fixedly connected with a first cooling tank, and the right side of the top of the cooling water tank is fixedly connected with a second cooling tank. The front and rear ends of the first cooling box and the second cooling box penetrate through and are provided with fixing frames, cooling assemblies are arranged on the inner walls of the fixing frames, and water guide grooves are formed in the middles of the bottoms of the first cooling box and the second cooling box. According to the day lily cooling device, hot water on the day lily which is just cooked is blown away and cooled through the first cooling box, the draught fan and the filter screen, then the first conveying belt is opened, the day lily is conveyed into the cooling water tank to be cooled, and finally the day lily which is just cooled is cooled through the second cooling box and the draught fan.

The utility model discloses a far infrared lamp holder with good safety, and relates to the technical field of phototherapy. The device comprises a shell, a heating plate and a protective net, the protective net is arranged on the front side of the shell, a heat insulation rubber ring is arranged on the peripheral side of the heating plate, the heating plate faces the protective net and is embedded in the inner side of the shell through the heat insulation rubber ring, and the shell is made of high-temperature-resistant heat insulation materials. By adopting the technical scheme, the LED lamp has the advantages of low surface temperature of the shell, good safety, capability of short-distance irradiation, high irradiation intensity and good effect.

The present invention relates to an oxygen generating composition. An oxygen generating composition characterized by comprising potassium peroxide (KO2) and calcium hydroxide (Ca (OH) 2), the weight ratio between the potassium peroxide and the calcium hydroxide being in the range of from 8: 2 to 4: 6.

The invention discloses a process control method for improving the temperature rise efficiency of an LF furnace electrode, and belongs to the technical field of metallurgy. The method comprises the following steps: implementing a pre-slagging system in a converter tapping process, and adding an aluminum product and lime to form reductive top slag; the method comprises the following steps of: recycling hot-state refining slag pouring residue of the previous furnace, further improving the reducibility of top slag, forming high-reducibility (FeO + MnO < = 1%) top slag before the LF enters a station, cooperating with a steel ladle bottom blowing three-stage control system, controlling small gas quantity of bottom blowing in the earlier stage of the LF, forbidding adding of slagging materials and alloys, achieving a good submerged arc effect in a power transmission process, and ensuring stable output of an electric arc. By means of the measures, rapid heating in the power transmission process of the LF furnace is achieved, the electrode heating efficiency is improved by 15% or above, power consumption is remarkably reduced, the refining efficiency and the molten steel cleanliness are improved, and good industrial application prospects are achieved.