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72results about How to "Reduce external temperature" patented technology

Ventilation tubes

A ventilation tube (20, 120, 220) is disclosed. The ventilation tube (20, 120, 220) comprises an inner wall (22, 122, 222) that defines a fluid passageway for 5 ventilation gases, an outer wall (24,124,224) that surrounds the inner wall (22, 122, 222) and has a greater thickness than the inner wall (22, 122, 222), a helical separator member (26, 126, 226) interposed between the inner and outer walls (22, 122, 222, 24, 124, 224) so as to define an insulation chamber between the inner and outer walls (22, 122, 222, 24, 124, 224), and a heating element (28, 128, 228) disposed within the insulation chamber.
Owner:INTERSURGICAL AG

Thermally insulated components for exhaust systems

ActiveUS20150000259A1Low costImproved/lower emissionThermal insulationFibre treatmentFiberEngineering
A component of an exhaust system for an internal combustion engine. The component comprises an exhaust system structure (20) having an interior (22) through which exhaust gases flow and an exterior (21), and a thermal insulating wrap (10) for thermally insulating at least a portion of the exterior (21) of the exhaust system structure (20). The thermal insulating wrap (10) comprises an aqueous mixture comprising an inorganic binder and inorganic filler particles, and a fabric comprising inorganic fibers. The fabric is impregnated with the aqueous mixture so as to form a pliable binder wrap (11). The pliable binder wrap (11) is wound completely around at least a portion of the exhaust system structure (20). It can be desirable for the component to further comprise at least one thermal insulator comprising inorganic fibers, where the thermal insulator is disposed between the pliable binder wrap (11) and the exterior 21 of the exhaust system structure (20).
Owner:3M INNOVATIVE PROPERTIES CO

Gradient composite technology ceramic tile and preparation method thereof in field of glass kilns

ActiveCN112225558AGood Thermal Gradient Reduction CapabilitiesLow thermal conductivityFiberZirconate
The invention discloses a gradient composite technology ceramic tile in the field of glass kilns, which is prepared by the following steps of on the basis of taking zirconium dioxide as a base material, compounding with other components to form a first-layer material with the mass percentage of 100%, gradually changing the content of the material by sections in a gradient manner and gradually increasing the content of other materials until a trace amount of zirconium dioxide exists, progressively increasing two or more than two other materials in a gradient manner and changing different components to form a plurality of layers of components in percentage by mass of 100 for implementing material distribution, so that gradual change from one side to the other side in a continuous gradient manner is realized. The ceramic tile comprises the following components: zirconium dioxide Zr02, silicon dioxide SiO2, yttrium oxide Y203, calcium zirconate eutectic CaZrO3, barium zirconate eutectic BaZrO3, magnesium-zirconium eutectic MgZrO3, corundum alpha-Al2O3, alumina powder alpha-Al2O3, alumina fiber whisker alpha-Al2O3, silicon carbide SiC, silicon nitride Si3N4 and magnesium oxide MgO. Thepreparation method is convenient to operate and comprises the following steps of 1, preparing raw material components, 2, carrying out process treatment on each layer of components, and d, sintering amolded product.
Owner:ZHENGZHOU FANGMING HIGH TEMPERATURE CERAMIC NEW MATERIAL CO LTD

Fused quartziferous cast glazed tile for coke oven and preparation method thereof

ActiveCN102303971AReduce the surface temperature of the furnace doorFree from physical laborThermal conductivitySoft clay
The invention discloses a fused quartziferous cast glazed tile for a coke oven. The glazed tile comprises glazed water and a cast prefabricated member, wherein the glazed water comprises following components in percentage by weight: 30-50% of spodumene with a particle size of 10 to 0 micron, 5-20% of soft clay with the particle size of 10 to 0 micron, 10-20% of potash feldspar with the particle size of 10 to 0 micron, 5-15% of aluminum oxide with the particle size of 5 to 0 micron, 3-15% of quartz with the particle size of 10 to 0 micron, and 0.5-1% of organic plasticizer. The cast prefabricated member includes the following ingredients in percentage by weight: 30-50% of fused quartz, 25-35% of chamotte, 10-15% of alumina clinker, 10-15% of binding agent, 3-6% of silicon micropowder and 3-8% of aluminum oxide micropowder. Meanwhile, the invention further discloses a preparation method of the glazed tile. The glazed tile provided by the invention has excellent thermal shock stability and thermal impact resistance in coke oven production process; the glazed tile has low thermal conductivity and high strength, and can effectively reduce the external temperature of the furnace gate; and the production process does not have pollution.
Owner:宜兴市丁山耐火器材有限公司

Energy-saving and environment-friendly high-temperature electric melting furnace

The invention discloses an energy-saving and environment-friendly high-temperature electric melting furnace. The energy-saving and environment-friendly high-temperature electric melting furnace comprises a control cabinet and a furnace body. The furnace body is composed of a hearth and a furnace lining. The hearth is composed of three insulating layers. A temperature measuring element is arranged on the back face of the furnace body. The hearth is of a semi-open type structure, and the hearth is filled with an aluminum oxide hollow ball plate. The high-frequency voltage transformation principle is adopted for saving electricity and energy, a plurality of silicon-molybdenum rods or silicon-carbide rods are used for heating, the temperature rise is fast, the effect is good, the high temperature of 1,600 DEG C can be generated, and the requirement for the temperature of pressure casting or crystal glass raw material smelting is highly met. A corundum plate, a silicon-carbide plate and a silicon oxide plate or a graphene plate are arranged in the hearth, crystal raw materials can be prevented from being attached into the hearth in the smelting process, and the cleanliness and transparency of crystal glass in the sintering process is guaranteed; meanwhile, the multiple insulating layers are arranged, dissipation of heat is effectively reduced, and resources are saved; and the external temperature of the furnace body is very low, and potential safety hazards of scalding are reduced. Noise is avoided during electric heating work, and the effects of safety, energy saving and environment friendliness are truly achieved.
Owner:聂晓彬 +1

Warship invisible chimney design

The invention relates to a warship chimney. The requirement of naval armaments for invisibility is higher and higher, and the possibility that a warship is investigated is greatly increased due to thelarge size, thick black smoke and the too high temperature of the exposed surface part of a chimney. By the adoption of the warship chimney, a smoke filter, a heat insulation layer, an exhaust fan, awater circulation cooling structure and the like are additionally arranged, black smoke of the warship chimney and the volume of the chimney are reduced, and the temperature of the outer portion is lowered. Through a series of transformation, the probability that the warship is found in the navigation process is reduced, and the invisibility effect of the warship chimney can be improved to a certain limit.
Owner:李宁

Fullerene modified fireproof thermal-insulation coating material and preparation method thereof

The invention discloses a fullerene modified fireproof thermal-insulation coating material and a preparation method thereof, and belongs to the technical field of coatings. The fireproof thermal-insulation coating material is a water-based environment-friendly coating and comprises the following raw materials in parts by weight: 15-42 parts of a resin emulsion, 14-51 parts of pigment and filler, 3-11 parts of an auxiliary agent, 0.3-5 parts of carbon fibers, 0.02-4 parts of fullerene, 3-12 parts of nano hollow porous thermal-insulation filler, 1-10 parts of a fire retardant and 16-50 parts ofdeionized water. The coating material prepared by the invention has functions of fire resistance, heat insulation and corrosion resistance, so that the situation that an equipment surface or a building surface needs to be repeatedly coated with different coatings is avoided, and the problem that rejection among different coatings and differences among construction processes are required to be considered is solved; moreover, the problems of poor corrosion resistance and the like of a conventional heat-insulation coating can be solved, so that the coating material provided by the invention can be widely applied to outer surface spraying of civil building outer walls, industrial equipment, storage tanks, pipelines and the like.
Owner:ZHUHAI HUADA WHOLEWIN CHEM LTD

Small and light cryogenic high-pressure hydrogen storage device

The invention discloses a small and light cryogenic high-pressure hydrogen storage device. The small and light cryogenic high-pressure hydrogen storage device comprises an inner container and an outerbarrel, wherein the inner container is located in the outer barrel and wrapped by carbon fibers in a full winding mode; the outer side of a carbon fiber layer is further wrapped by a reflection heatinsulation layer; a hydrogen introducing pipe is arranged in an interlayer between the inner container and the outer barrel; one end of the hydrogen introducing pipe is communicated with the inner container from the head of the inner container; then the hydrogen introducing pipe is arranged around the inner container for a circle from the head of the inner container to the tail of the inner container and then towards the head of the inner container; then the other end of the hydrogen introducing pipe penetrates through the head of the outer barrel to be communicated with one end of a hydrogensupply pipe on the outer side of the head of the outer barrel; a first stop valve is arranged on the hydrogen supply pipe; a filling pipe is communicated to the hydrogen supply pipe between the firststop valve and the outer barrel; a second stop valve is arranged on the filling pipe; and the interlayer between the inner container and the outer barrel is further filled with aerogel and vacuumized.The device can improve the cruising ability of a small machine, and is light in weight, low in cost, safe, reliable and long in hydrogen storage maintaining time.
Owner:ZHANGJIAGANG RES INST OF HYDROGEN ENERGY CO LTD

Rock drill steel tube blank heating system and heating method

The invention discloses a rock drill steel tube blank heating system. The rock drill steel tube blank heating system comprises a feedback device, a propelling device, a locating device, a heating device, a heating device, a temperature measuring device and a conveying device. The distances d1 and d2 between three flame heaters are controlled through the feedback device. The heating temperature offlame injectors is controlled through an oxygen distribution box and a fuel gas distribution box. On the other hand, the invention further comprises a rock drill steel tube blank heating method. Through a gradient flame heating roll-forming method, the compactness of a rolled part is controlled, the rock drill steel internal defects caused by the same deformation of uniformly heated tube blanks inthe prior art are avoided, the quality of rock drill steel is improved, and the service life of the rock drill steel can be prolonged. The radial temperature of the rock drill steel tube blank is accurately controlled through the feedback device. Through flame heating, the cost is low, just one set of the flame injector of which the size is matched with different sizes of rock drill steel tubes needs to be designed, and other devices are all universal assemblies without replacement.
Owner:北渤智能科技秦皇岛有限公司

High-temperature and high-pressure semi-coke cooling and depressurizing method

InactiveCN110699095AImprove processing efficiencyEffective cooling and pressure reduction treatmentCoke quenchingThermodynamicsProcess engineering
The invention relates to a high-temperature and high-pressure semi-coke cooling and depressurizing method which comprises the following steps: I, filling a cooling gas into high-temperature and high-pressure semi-coke treatment equipment for a preset duration; II, after the cooling gas is stopped, inputting a high-temperature and high-pressure semi-coke material into the high-temperature and high-pressure semi-coke treatment equipment, and performing heat exchange on the semi-coke material with the cooling gas in the high-temperature and high-pressure semi-coke treatment equipment in the falling process; III, when the semi-coke material in the high-temperature and high-pressure semi-coke treatment equipment is accumulated to a preset height, stopping inputting the semi-coke material into the high-temperature and high-pressure semi-coke treatment equipment; and IV, releasing the pressure of the high-temperature and high-pressure semi-coke treatment equipment, so as to complete the operation of charging and releasing the pressure of the high-temperature and high-pressure semi-coke treatment equipment, and through the pressure release process, performing cooling and depressurizing treatment on the high-temperature and high-pressure semi-coke material for a second time. By adopting the cooling and depressurizing method, the high-temperature and high-pressure semi-coke material is subjected to effective and efficient cooling and depressurizing treatment, and the investment cost of treatment can be also greatly lowered.
Owner:ENN SCI & TECH DEV

Low-thermal-conductivity brick for rotary cement kiln and production and manufacturing method of low-thermal-conductivity brick

The invention belongs to refractory materials and production methods thereof, and particularly relates to a low-thermal-conductivity brick for a rotary cement kiln and a production and manufacturing method of the low-thermal-conductivity brick. The production method of the low-thermal-conductivity brick comprises the following steps that magnesia particles, magnesium aluminate spinel particles, spinel fine powder and magnesia fine powder are mixed, then a binding agent is added to prepare pug, the pug is pressed into a green body, the green body is dried and fired in a high-temperature tunnelkiln to obtain a main body refractory brick, the main body brick is placed on an operating platform, and is clamped by a grinding tool, a steel mesh meshes with the main body brick, the binding agentis added into a heat insulator raw material for mixing, then a castable is poured into the grinding tool according to a specified amount, vibrating and molding is conducted, demolding is conducted after 24 hours, then drying is conducted to 350 DEG C, and then packaging is conducted after cooling. The low-thermal-conductivity brick for the rotary cement kiln and the production and manufacturing method of the low-thermal-conductivity brick have the advantages that the problem of Cr < 6 + > public nuisance pollution of the magnesite-chrome brick of the rotary cement kiln is solved, meanwhile, the temperature of a cylinder of the rotary cement kiln is reduced, the service life of the brick for a transition zone of the rotary cement kiln, which is utilized in multiple aspects, is prolonged, and meanwhile, the energy and equipment consumption is reduced.
Owner:武连明

Efficient oxygen-enriched-combustion multiple-unit-powder heat transfer oil boiler system

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

Shielded wire grounding device for electrical equipment

The invention discloses a grounding device for shielded wires of electrical equipment. The grounding device for shielded wires of electrical equipment comprises: a stable seat; a frame located outside the stable seat; a communication port located outside the frame; at least four sets of connection limit components, The connection limiting component is arranged inside the communication port, and is used for limiting and fixing the outer end of the cable; the fixing component, the fixing component is connected with the frame, and is used for limiting and fixing the inside of the cable; wherein, the fixing component It includes: an adjustment assembly, the adjustment assembly is arranged outside the frame, and is used for pressurizing and fixing adjustment of the internal cables; at least two sets of support assemblies, the support assemblies are connected with the frame, and are used for insulating support of the cables. The connection limit component cooperates with the fixed component to provide external protection for the cable and further improve the stability of the cable when it is grounded. At the same time, a heat exchange component is installed outside to further ensure the external air circulation of the cable and reduce the external temperature of the cable. temperature.
Owner:江苏龙源电材有限公司

Body Cooling Device

A portable body cooling device, worn on the upper torso of a person, that uses a compressed or liquefied gas cartridge to vent cool gas onto the skin of the wearer as well as to act as a heat sink during the gas release. The cartridge is in contact with a conductive material that transfers heat from the skin of the wearer to the cartridge. The cooling device provides immediate and temporary relief from heat flashes.
Owner:CAHOON COLIN PAUL +1
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