540results about How to "Efficient take away" patented technology

The invention relates to a sludge drying and incineration combined treatment method with good treatment effect, wide sludge adaptability, and safe and stability system. To avoid agglomeration of mechanically dewatered sludge (k) in a fluidized bed dryer (6), a part of dried sludge (c) is premixed with the mechanically dewatered sludge (k) and then fed into the fluidized bed dryer (6). The dried sludge (c) is incinerated into a circulating fluidized bed incinerator (1) to generate superheated vapor. The superheated vapor is condensed to hot water in a heat exchange tube (6-2) of the fluidized bed dryer (6) and then recycled to the circulating fluidized bed incinerator (1). The arrangement of buried pipes (1-3) and fractional air supply inside the circulating fluidized bed incinerator (1) can effectively control the lower temperature of the circulating fluidized bed incinerator (1) to prevent deflagration of dried sludge. The entire system has no emission of pollutants such as unpleasant odor, acidic gases, heavy metals and dioxin; is safe and reliable; and can operate for a long time.

The invention aims to provide a long-term efficient passive containment cooling system utilizing a jetting technique. A built-in heat exchanger of a containment and upper and lower pipe sections form a first-stage heat discharging system; an air cooler, a water tank baffle plate and a steam-air jet device in an external water tank form a second-stage heat discharging system of a cooling system; the steam-air jet device is located on the side wall surface of a gas space in the water tank and is used for introducing water steam produced by virtue of the first-stage heat discharging system into an ejector to jet air of the second-stage heat discharging system, so as to decrease the inlet temperature of the first-stage heat discharging system, so that the heat discharging efficiency of the system is improved; and a passive containment heat exchanger adopts an intensified heat exchange pipe and is located in the containment, the heat exchange pipe adopts a small-coil-pipe light pipe, and drainage plates are mounted on the periphery of the heat exchanger. According to the long-term efficient passive containment cooling system, when a crevasse accident occurs at a main cooling agent loop or a main steam pipeline, the internal heat in the containment can be efficiently taken away in a long term, so that the internal temperature and pressure of the containment can be below safety limit values for a long time under accident conditions.

The invention relates to a thermal protection structure for the leading edge of a hypersonic vehicle. The thermal protection structure is sequentially composed of a shell layer and an inner wall layer from outside to inside. The shell layer comprises a first head cap located at the top end of the leading edge and a leading edge side wall shell fixedly connected with the first head cap. The first head cap is made from high temperature resistant materials, and the leading edge side wall shell is made from steel-based porous materials. The inner wall layer comprises a second head cap arranged corresponding to the first head cap, and a metal shell fixedly connected with the second head cap and arranged corresponding to the leading edge side wall shell. The second head cap is made from steel-based porous materials. A cooling channel is formed between the inner wall layer and the shell layer which are connected through a plurality of supporting ribs. A water storage capsule used for storing coolants is arranged inside the inner wall layer and connected with the second head cap through a tree-shaped capillary fractal structure and provides the coolants needed for transpiration cooling for the second head cap.

The invention relates to an environment-friendly water-soluble cutting fluid for magnesium alloy cutting, which comprises the following components in parts by weight: 5-20 parts of organic acid, 15-30 parts of organic amine, 5-16 parts of lubricant, 3-11 parts of emulsifier, 1-6 parts of corrosion inhibitor, 0.1-0.5 part of defoaming agent, 0.1-3.5 parts of bactericide and 15-70 parts of water. The magnesium alloy cutting fluid has the advantages of favorable abrasion resistance, favorable hard water resistance, favorable rust and corrosion resistance, and is capable of effectively protecting the cutter and prolonging the service life of the cutter. The water-soluble cutting fluid can quickly take away the heat generated in the machining process, lower the temperature of the machined surface and effectively avoid the defect of high flammability of the magnesium chips due to high temperature. The aluminum-magnesium alloy cutting fluid provided by the embodiment of the invention does not release hydrogen when being used for magnesium alloy cutting, thereby ensuring the safe proceeding of the production process.

The invention provides a bidirectional exhaust cable cooler, which comprises a main body part and exhaust parts (10), wherein the main body part comprises an upper semi-circular part (1) and a lower semi-circular part (2), and a cylindrical coolant barrier layer is arranged on the outer circumferential surface of a cylinder; circular air holes (27) are also formed in the cylindrical coolant barrier layer, and the left and right ends of the upper semi-circular part (1) and the lower semi-circular part (2) are respectively provided with bearing semi-circular rings (5), and after the upper semi-circular part (1) and the lower semi-circular part (2) are buckled to form a cylinder, the bearing semi-circular rings (5) form bearing circular rings which are respectively positioned at the two ends of a cavity and are used for bearing a cable (9); and two exhaust parts (10) are respectively arranged at the left and right ends of the cylinder.

The invention discloses a handle air inlet hairdryer, which comprises a casing, wherein a main air duct extending along the length direction thereof is arranged inside the casing, and a handle connected to the side wall of the casing. The internal of the handle is provided with a handle air duct extending along its length, and the handle air duct is connected with the main air duct, wherein the main air duct comprises a suction chamber and a heating chamber arranged in sequence along the flow direction of the air flow; a main air inlet opening communicating with the suction chamber is arrangedat the rear end of the casing; and an air outlet opening communicating with the heating chamber is arranged at the front end of the casing. According to the invention, the invention not only reducesthe volume of the hairdryer, but also improves the heat dissipation efficiency of the PCB circuit board, the motor and the fan inside the hairdryer, prevents the hairdryer from being out of service caused by overheating, and prolongs the service life of the hairdryer.

The invention discloses a projector, comprising a wind scooper, a color wheel, a motor of color wheel, a light pipe and a first air inlet. The color wheel is set in the wind scooper. The motor of color wheel is connected with the color wheel and in the wind scooper. The light pipe is in the wind scooper and corresponds with the color wheel. The first air flow enters into the wind scooper from the first air inlet and passes through the motor of the color wheel and light pipe and flows out the wind scooper.

The invention relates to a ventilating glass curtain wall and a working method thereof, belonging to the technical fields of building energy conservation and new energy utilization. The ventilating glass curtain wall is provided with a plant curtain between an outer layer glass curtain wall and an inner layer glass curtain wall; the lower end of the outer layer glass curtain wall is provided with a first ventilating regulator, the lower end of the inner layer glass curtain wall is provided with a second ventilating regulator, and the first ventilating regulator and the second ventilating regulator are respectively connected with a fan; the lower end of the plant curtain is connected with a drain tank, and the upper end thereof is connected with a micro-sprinkling irrigation spray head which is connected with an electronic water pump by a main water supply pipe of a micro-sprinkling irrigation system; and the electronic water pump is connected with a water storage tank which is connected with a condensate water outlet arranged at the end of an air conditioner by a condensate pipe. The ventilating glass curtain wall utilizes the photosynthesis and the transpiration straggling effect of the plant curtain to consume solar radiation, and is simultaneously assisted by ventilation strategy, so that the heat inside a hot channel can be taken away, the temperature inside an air cavity of the ventilating double-layer curtain wall is reduced, and the aim of saving the energy consumption can be achieved.

The invention discloses a water-cooled permanent magnet synchronous motor with a built-in outer rotor and rotary transformation magnetic resistance used for hybrid power automobiles, which comprises a casing, a false axis with an opening inside arranged in the middle of the casing and an end plate fixedly sleeved on one axis end of the false axis; wherein two ends of the end plate are respectively fixed on the inner wall of the casing; a stator core wound with a stator coil is arranged on the inner wall of the casing; a rotor bracket provided with rotor magnetic steel is arranged on the outer wall of the false axis through a bearing; the stator core and the rotor magnetic steel are oppositely arranged; a rotor of a rotary transformer is fixedly mounted on the bottom wall of the rotor bracket and a stator opposite to the rotator is mounted on the outer wall of the false axis. The electromotor needs no maintenance, has reliable use and long service life, can effectively improve the anti-interference capacity of detecting signals. The water-cooled permanent magnet synchronous motor can effectively cool the stator coil winding and the stator core and simultaneously weaken the cogging torque of solid rotor synchronous motor.

The invention discloses a comprehensive utilization system of energy. The system comprises an air conditioning demand space, a heat exchange water tank, a hot water storage device, an air conditioning device and a control unit, wherein the heat exchange water tank is provided with a cold water inlet and a hot water outlet which are communicated with a cold water source and the hot water storage device respectively; the air conditioning device comprises a first heat exchanger and a second heat exchanger; the first heat exchanger is arranged in the air conditioning demand space; the second heat exchanger is arranged in the heat exchange water tank; the air conditioning device is used for refrigeration for the air conditioning demand space through the first heat exchanger; heat is released to the heat exchange water tank through the second heat exchanger; and valves of the hot water outlet and the cold water inlet are controlled by the control unit, so that water is fed from the cold water source after water in the heat exchange water tank flows into the hot water storage device. The heat dissipated by the second heat exchanger can be effectively brought away by replacing the cold water in the heat exchange water tank, so that the power of refrigeration of the air conditioning device is reduced, and the energy is saved. The hot water which flows into the hot water storage device can be reutilized to further save the energy of heating domestic water.

The invention discloses a mechanical seal test system for a nuclear main pump, which is characterized in that the system comprises a medium concentration control zone, an injection medium processing zone, a frame zone and a reflux medium post processing zone. A test main shaft is used as a driven component in the frame zone; the test shaft is provided with a fluid static pressure seal or a fluid dynamic pressure seal or a fluid dynamic-static pressure combined seal. In the injection medium processing zone, a seal medium flow passage located between a low pressure container and a system seal cavity is respectively provided with a high pressure pump, a high pressure buffer tank and an energy accumulator, which are connected in series with a switchable magnetic filter, an organic filtering film and used,for providing a system pressure source; in the reflux medium post processing zone, a long pipe throttling cooler with a back pressure value is arranged at an outlet of the system seal cavity. The invention not only can simulate a fluid static pressure mechanical seal test for the nuclear main pump, but also can simulate a fluid dynamic pressure mechanical seal test for the nuclear mainpump, at the same time, the invention further can simulate a fluid dynamic-static pressure combined mechanical seal test for the nuclear main pump.

The invention provides a high speed stamping die with a low temperature lubricating structure and belongs to the technical field of dies. The invention solves the problems of bad cooling effect, bad lubricating effect and short service life of the current stamping die. The high speed stamping die with the low temperature lubricating structure comprises an upper die holder and a lower die holder, wherein a forming plate group composed of an upper die lining plate, a punch fixing plate, a discharge lining plate, a discharging plate, a lower template and a lower die lining plate is arranged between the upper die holder and the lower die holder, a forming assembly is arranged in the forming plate group, an oil gas path communicated with the forming assembly is arranged between the forming plate groups, and the inlet of the oil gas path is connected with a low temperature lubrication feeding device. The low temperature lubrication feeding device mixes and atomizes low temperature compressed air and micro-lubricating oil to form low temperature gas-liquid two-phase stream, and the low temperature gas-liquid two-phase stream is jetted to a stamping processing region through a gas channel so as to permeate the low temperature cold air to a stamping processing contact interface with oil particles atomized by the micro-lubricating oil to play a lubricating effect and effectively take away the heat generated during the stamping process.

The invention provides a thin type heat pipe, a manufacturing method of the thin type heat pipe and electronic equipment. The thin type heat pipe includes a pipe body with a cavity, both ends of the pipe body include convergence parts, the cavity sectional areas the convergence parts decrease gradually in the direction away from the center of the pipe body, a closed sealing opening is formed in the tail end of the pipe body, and the cavity is internally provided with a capillary structure and a working medium. Thus, the entire pipe body of the thin type heat pipe is provided with the cavity, compared with other heat pipes with the shrinkage pipe structure, when the length of the pipe body is the same, the volume of the cavity is larger and the length is longer, more capillary structures and working mediums can be accommodated, and the cycle distance of the working medium is longer; the condensation effect of the working medium is improved advantageously, the capacity of heat transmission of the heat pipe is improved, and heat dissipation performance of the thin type heat pipe is better; and when the thin type heat pipe is applied in chip heat dissipation design of mobile phones, tablet computers and other electronic products, the chip temperature can be effectively lowered, the underclocking phenomenon of a chip at high temperature is avoided, and chip performance is fully played.

The heat exchanger includes body case with opening at up portion, and hollow trough, and upper cover plate matched to the body case. It is watertight seal between the body case and the upper cover plate. The body case and the upper cover plate are sealed together to constitute the heat exchanger with inlet and outlet of working medium. Tiny pole set composed of multiple cross spread tiny poles is setup on surface of bottom board of the trough in the body case. The invention is mainly applicable to heat exchanger.

The invention discloses an energy-accumulating microwave ablation needle for 915 MHz, which relates to a disposable therapeutic device. The invention is mainly composed of an ablation needle head, an ablation needle tube and a handle, the tail part of the handle is provided with a fixed frame and an insert which is used for external connection, a coaxial cable connector and a connecting terminal are arranged on the fixed frame, the interior of the ablation needle tube is provided with a microwave coaxial cable and a stainless steel capillary, a temperature sensor is arranged on an end seal of the ablation needle tube, the connecting terminal which is used for connecting the temperature sensor is arranged on the fixed frame, a water inlet and a water outlet are arranged on the fixed frame at the tail part of the handle, and the water outlet is communicated with the ablation needle tube. The microwave ablation needle of the invention is used for the ablation treatment of tumors and lesion tissues, when the invention is worked at the 915MHz microwave condition, the microwave impedance matching is good, the ablation range is big and the coking range of the surrounding solidification region of the needle is small. The invention can be used for the treatment of the ablation of big tumors and tissues with the large lesion range.

The invention provides a rapid-conduction indirect liquid cooling heat radiation structure combining with a micro-channel, and the structure comprises a liquid cooling cold plate with a snakelike liquid cooling channel inside, a thermal conduction film and a heat radiation copper block, wherein the thermal conduction film and the heat radiation copper block are sequentially disposed at the bottomof the liquid cooling cold plate in a manner of being corresponding to the position of a big power consumption device. The flowing direction of the snakelike liquid cooling channel correspondingly passes through a space above the position of the big power consumption device, and the interior of the snakelike liquid cooling channel is provided with micro-channel heat radiation teeth corresponding to the big power consumption device. The interior of a snakelike channel indirect liquid cooling cold plate is combined with the micro-channel heat radiation teeth, and a conduction heat radiation copper block structure is embedded, thereby improving the thermal conduction efficiency from a chip device to the liquid cooling cold plate and the heat exchange performance of the liquid cooling cold plate, solving the problems that the limited heat exchange area of a conventional snakelike channel liquid cooling cold plate causes the insufficient heat radiation and the thermal conduction efficiencyfrom a chip to a cold plate is not high, and overall improving the heat radiation efficiency of a reinforced printed board card.

The invention relates to a BC febrifugal refreshment paste for auxiliary treatment of fever and emergent physical hypothermia and preparation thereof. The BC febrifugal refreshment paste comprises the components: a bacterial cellulose membrane and febrifugal refreshment medicinal reagent. The preparation comprises the following steps of: performing seed culture on BC production strains at the temperature of 30 DEG C, inoculating the BC production strains to a fermentation culture medium for culture to prepare a BC wet membrane, then immersing the wet membrane into NaOH solution, and performing water bath until the BC membrane is white and semitransparent and putting the BC membrane aside for later use; and then putting the BC membrane into heat-clearing refreshment medicinal liquid to process the BC membrane for 5 to 30 minutes to prepare the febrifugal refreshment paste. The bacteria cellulose-based febrifugal refreshment paste has the advantages of high moisture content, good biocompatibility, no conglutination and stimulation to skin, safety and environmental protection; and the preparation method has the advantages of simplicity, convenience, easy operation, low cost and friendliness to environment, and has the excellent application prospect.

The invention discloses a battery, which comprises at least a monocell and a fluid passage around the at least one monocell. The fluid passage is provided with an inlet and an outlet which are communicated with each other, wherein at least part of an electrode terminal of the monocell is positioned in the fluid passage. The invention also discloses a battery pack, which comprises a plurality of batteries which are arranged in order, wherein the battery is the battery provided by the invention; and the inlets and outlets of the plurality of batteries are mutually communicated. In the battery and the battery pack provided by the invention, clapboards arranged between the monocells are omitted, so that the weights and volumes of the battery and the battery pack are greatly reduced while effective heat dissipation is realized, and the energy and volume ratios of the battery and the battery pack are improved.

The invention relates to a door of a cold-storage and freezing device and the cold-storage and freezing device. The door comprises a panel used for forming the front portion of the door, a display control assembly with a display touch control function, and a door foaming assembly used for forming the rear portion of the door. An accommodating cavity for accommodating the display control assembly, an air inlet duct and an air outlet duct are defined between the door foaming assembly and the panel, and the air inlet duct and the air outlet duct enable the accommodating cavity and the environment space to communicate. The display control assembly is accommodated in the accommodating cavity, an air inlet fan is arranged in the air inlet duct and is controlled to start when the humidity in the space where the display control assembly is located reaches a preset second humidity threshold value, and thus environment space is promoted to flow to the accommodating cavity through the air inlet duct. The door can effectively dissipate heat, and condensation on the display control assembly is prevented. The cold-storage and freezing device comprises a box and the door, and the door is directly or indirectly connected to the box so as to open and / or close at least part of a storage space.

The invention relates to an integrated kitchen of an offshore platform. The integrated kitchen of the offshore platform comprises kitchen electric devices, an electric system, an exhaust system, a water supply and drainage system and an illuminating system. The layout of each electric device, a working table and a cleaning pool of the kitchen is divided to a plurality of function areas according to the function, each electric device, the exhaust system and the illuminating system in the kitchen are integrally controlled by a programmable logic controller (PLC), the cooking fume of the kitchen is discharged after processed by a smoke purification device, the kitchen wastewater is discharged before the oil-water separation or multiple filtration treatment, and the garbage of the kitchen is processed by a garbage processing device. The integrated kitchen is capable of standardizing the typical layout and standard configuration of the integrated kitchen of the offshore platform, finally forming an advanced, systematic and effective technical manual of the integrated kitchen of the offshore platform, and filling up the domestic blank.

The invention provides a method for precisely machining a deep groove and a deep hole by varifocal lasers. The method comprises the steps that a plurality of focusing lenses with different focal lengths and workpieces are clamped; if deep groove machining is carried out, a laser beam is continuously output; laser etching machining is completed once; if deep hole machining is carried out, N laser pulses are output; the lasers are closed, and a working table moves to the original position; whether machining meets the requirements or not is detected; if machining meets the requirements, machining is finished; if machining does not meet the requirements, a focusing lens base is rotated, the next focusing lens is moved to the position of the current focusing lens, and laser machining is carried out again until machining meets the requirements. The pulse laser beam sequentially penetrates through the focusing lenses with the different focal lengths by rotating the focusing lens base, the focal lengths are progressively changed, the lasers are focused on the new exposed surface in the laser etching or punching process all the time, energy is more concentrated, the punching deep is larger, and the efficiency is higher. The invention provides a device for precisely machining the deep groove and the deep hole by the varifocal lasers at the same time.

The efficient wet desulfurizing and dusting device especially for coal burning boiler in power plant has one vertical tower with inner tower in its center, tangent flue gas inlet pipe and flue gas outlet pipe, lime water and cinder output pipe, tangent chemical nozzle and water retaining ring. It features the inwards protruding ring set over the flue gas inlet pipe to make fluid passage turned first to tower center and then upwards, and one overflowing unit in the center of the tower to overflow downwards the showing chemical liquid. The present invention has high desulfurizing and dusing effect.

The invention relates to a flowing atmosphere edge-defined film-fed crystal growth multi-chip sapphire crystal growth device and method. The device comprises a smelting furnace and an atmosphere device, the smelting furnace is placed into the atmosphere device, inert gas with an up-out and down-in flowing direction is fed into the atmosphere device, the smelting furnace comprises a tray, a heat insulation cylinder (4), an induction coil (8), a bottom heat insulation layer (13), a crucible (11), a growth mould unit (10), a seed crystal (6) and a seed rod (1), the heat insulation cylinder (4) isarranged on the tray, the induction coil (8) sleeves the heat insulation cylinder (4), the bottom heat insulation layer (13), the crucible (11), the growth mould unit (10), the seed crystal (6) and the seed rod (1) are sequentially arranged in the heat insulation cylinder (4) from bottom to top, and the seed crystal (6) is fixed to the bottom end of the seed rod (1) and arranged right above the growth mould unit (10) in a vertically movable manner through the seed rod (1). Compared with the prior art, the device has the advantages that gradient temperature distribution of a sapphire crystal growth interface area can be effectively controlled, synchronous consistency of 20 whole sapphire crystals is realized, the growth process is visible and controllable, and crystal quality is high.

The invention discloses a cooling system inside a variable frequency generator unit. The cooling system comprises a generator wind guide cover, a generator, blades, an wind guide cover plate, a hose, an inversion controller, an inverter wind guide body and a control panel, wherein the inverter wind guide body comprises an inverter wind guide groove, an inverter wind guide connector and a wind deflector; the generator and the blades are arranged inside the generator wind guide cover; the inversion controller and the wind guide cover plate form a generator cooling and ventilating intermediate cavity; the inversion controller is fixed inside the inverter wind guide groove which is positioned on one side of the generator; the inversion controller and the control panel form an inverter cooling and ventilating intermediate cavity; and the generator cooling and ventilating intermediate cavity and the inverter cooling and ventilating intermediate cavity are connected by the hose so as to form a cooling air channel. In the cooling system, wind pressure is formed by rotating the blades on the generator so as to ensure that cooling air is forced to pass through a plurality of plate type fins at the back of the inversion controller, then enter the generator cooling and ventilating intermediate cavity through the hose to cool the generator, and finally is discharged from an air outlet of the shell of the generator.

The invention discloses an automatic domestic dishwasher rinsing agent with a sterilization effect. The rinsing agent comprises components of raw materials in percentage by weight as follows: 5.0%-15.0% of a non-ionic surfactant, 1.0%-5.0% of a chelating agent, 0.05%-2.0% of a preservative, 2.0%-10.0% of a suspension dispersing agent, 1.0%-10.0% of a hydrotropic agent, 0.1%-10.0% of a solvent, 0.1%-8.0% of an anti-corrosion aid, 0.5%-3% of a pH value regulator and 0.1%-0.3% of essence. Specific anti-corrosion and sterilization components are added to the rinsing agent, Escherichia coli or staphylococcus aureus possibly existing on tableware can be removed effectively while the product safety is guaranteed, the removal rate for the Escherichia coli and the staphylococcus aureus is higher than 99.00%, and the rinsing agent can be used in home life, is energy-saving and environment-friendly and has bright application prospect.

The invention relates to a data center energy-saving cooling system based on the heat pipe technology. The data center energy-saving cooling system comprises an additionally-installed heat cabinet, an additionally-installed refrigerator, a heat pipe system, an air exhaust fan and a closed pipeline. The additionally-installed heat cabinet is connected to the back of a cabinet, the additionally-installed refrigerator is connected to the back of the additionally-installed heat cabinet, one end of the closed pipeline is communicated with the upper end of the additionally-installed refrigerator, the other end of the closed pipeline is communicated with an air conditioner system, the air exhaust fan is installed at the joint of the additionally-installed refrigerator and the closed pipeline, and a vent hole is formed in the bottom of the additionally-installed refrigerator and used for being communicated with a floor air supplying system. The heat pipe system comprises a plurality of heat pipes. Each heat pipe comprises an evaporating section and a cooling section, wherein the evaporating section is located in the additionally-installed heat cabinet, the cooling section is located in the additionally-installed refrigerator, and one end of the heat pipe is connected with the back wall of the cabinet. The temperature of hot air mass exhausted out of an outlet in the back of the cabinet can be further reduced, the overall heat dissipation efficiency of a machine room is improved, and the power consumption of a refrigeration device for cooling a server in the machine room is reduced.

The invention provides a die casting machine charging barrel good in cooling effect. The die casting machine comprises a charging barrel body and a lining. The lining is sleeved with the charging barrel body. A discharging port is formed in one end of the charging barrel body. The charging barrel body is sleeved with a cooling sleeve. A first annular groove, a second annular groove, a third annular groove...an nth annular groove are sequentially formed in the part, in contact with the cooling sleeve, of the charging barrel body from the end close to the discharging port to the end far away from the discharging port. The cooling sleeve is internally provided with a plurality of cooling medium circulation channels arranged in the axial direction of the cooling sleeve. The cooling sleeve is provided with a plurality of first cooling medium inlets and a plurality of first cooling medium outlets. The first annular groove, the second annular groove, the third annular groove...the nth annular groove communicate with each cooling medium circulation channel. According to the die casting machine charging barrel, heat on the charging barrel body can be effectively brought away, alloy material liquid can be effectively prevented from adhering to the charging barrel body, heat of the alloy material liquid can be prevented from being transmitted to a head plate, the head plate is effectively prevented from being fractured, and the production cost of the die casting machine is reduced.

The invention provides a run-flat tire to improve the run-flat endurance quality and ride comfort property. The run-flat tire (1) is provided with a side-reinforcing rubber layer (10) with an approximately crescent-shaped cross section. On the external surface (3s) of at least either sidewall (3), multiple protrusions (14) raised in a tire axially outward direction are arranged in a tire circumferential direction. In a front view of the sidewall (3), the protrusions (14) each extend to incline relative to a tire radial direction. Protrusions (14, 14) adjacent to each other in a tire circumferential direction are positioned to overlap each other in a tire circumferential direction.

The invention relates to a hyperbolic-type crystallizer copper pipe, which is characterized in that a conical degree curve of an inner cavity of a crystallizer is a hyperbola; the conical degree curves of four surfaces are all hyperbolas; and a relative large curve gradient is close to a meniscus, so as to better meet the demand on the conical degree close to the meniscus and better adapt to the contraction of a billet shell along the longitudinal direction of the crystallizer, thereby further reducing the thickness of a clearance along the longitudinal direction of the crystallizer, better eliminating the harmful effect of the clearance, promoting a heat transfer effect of the whole crystallizer and meeting the demand on high pulling speed of the crystallizer copper pipe.

The invention discloses a motor damping heat radiation housing structure. The motor damping heat radiation housing structure comprises a motor housing, a water jacket, an installation seat and a casing; a water jacket is arranged on the outer side of the motor housing; a water chamber is formed between the water jacket and the motor housing; a spiral-structured heat absorption pipe is arranged on the outside of the water jacket; a damping air bag and a damping spring are arranged between a casing bottom and an installation seat bottom; friction blocks are fixedly arranged on two sides of the installation seat; friction mats are arranged on the housing which correspond to the friction blocks; an inclined wind guiding plate is fixedly connected to the upper end of the rotation shaft; and a vertical fixing bolt is installed on a regulation plate through a screw thread. The motor damping heat radiation housing structure can guide surrounding air to blow to a mechanism through arrangement of a wind-guiding plate, so that the heat of heat radiation members can be quickly transmitted to the air flowing through and efficiently takes the heat away, greatly reduces temperature of the motor, enables the motor to operate smoothly and extends the service life of the motor.