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122results about How to "Extended heating range" patented technology

Induction heater and method for realizing non-preheating cladding of alloy on steel rail by using same

The invention discloses an induction heater which comprises a heating zone 1 and a heating zone 2, wherein the heating zone 1 is divided into two heating surfaces; a first heating surface is shaped like a trapezoid without the bottom; a second heating surface is a U-shaped one; the two lateral sides of the trapezoid-shaped heating surface are connected with the U-shaped heating surface; and an included angle is formed between the first heating surface and the second heating surface. When the induction heater is used to perform alloy cladding on a steel rail, preheating does not need to be performed in advance, so that on the premise of the same steel rail cladding speed, heat energy required by the method is only one third or less of the prior art; and meanwhile, the method lays a foundation for miniaturization of a generator or even construction without the aid of a rail car. By performing detailed analysis on structure phase change and heat transmission of a steel rail in the cladding process, the invention breaks through the theory that the steel rail must be preheated prior to welding for the first time, and presents that the steel rail can be directly subjected to alloy cladding without being preheated while generation of martensite can be avoided. The technology disclosed by the invention is put forward for the first time at home and abroad.
Owner:CHENGDU ZHONGGUI TECH CO LTD

Wet type combustion huff-puff oil extraction method

The invention provides a wet type combustion huff-puff oil extraction method, comprising the steps of: 1, flushing an oil well, then injecting an oxidizing agent into an oil deposit, igniting to burn coke-like components generated by the oxidization and splitting decomposition of crude oil in the oil deposit to heat an oil layer; 2, while the oxidizing agent is completed injected or is injecting, injecting water to reduce the high temperature of a near wellbore formation, and extracting oil after soaking the well for 3-10 days; 3, after extracting oil for 100-700 days, performing a next round of processes of injecting the oxidizing agent, igniting, injecting water, soaking and extracting oil. According to the method provided by the invention, the water is injected into the oil deposit after the oxidizing agent is injected, and water flow flows through a combusted area and carries heat to the deep part of the oil deposit, so that the heating range of the oil deposit is enlarged, and the peripheral temperature of the oil well is prevented from being too high. According to the wet type combustion huff-puff oil extraction method, formation water and the injected water are vaporized to generate steam, heat, smoke and steam generated by combustion are comprehensively utilized to recover in a combined manner, the output and the recovery efficiency of the crude oil are improved, and the recovery efficiency is up to more than 70%.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

CO2 high-temperature heat pump system

The invention discloses a CO2 high-temperature heat pump system. The CO2 high-temperature heat pump system comprises a condenser, a vortex tube, a compressor, a gas-liquid separator, a first expansion valve, a second expansion valve and an evaporator, wherein an outlet of the compressor is connected with an inlet of the vortex tube; a high-temperature outlet of the vortex tube is connected with a refrigerating fluid inlet of the condenser; a low-temperature outlet of the vortex tube is connected with the gas-liquid separator; a refrigerating fluid outlet of the condenser is connected with the gas-liquid separator via the first expansion valve; a gas outlet of the gas-liquid separator is connected to an inlet of the compressor through a gas suction tube; a liquid outlet of the gas-liquid separator is connected to a first inlet of the evaporator via the second expansion valve; and a first outlet of the evaporator is connected with the gas-liquid separator. The vortex tube and an ejector are arranged on the heat pump system, a vortex shedding effect of the vortex tube is utilized, water with high temperature can be provided by the condenser under the condition that a heat pump has constant exhaust pressure, and the application range of the high-temperature heat pump is expanded further; and moreover, the air suction pressure of the compressor can be increased with the aid of the ejector, and the energy efficiency of the heat pump is improved.
Owner:NINGBO SAISEN ENERGY SAVING EQUIP CO LTD

Hydrogen-injection oil extraction method

The invention discloses a hydrogen-injection oil extraction method. An oilfield oil extraction area block is provided with a gas-injection well and surrounding production wells; the gas-injection well is connected with equipment for injecting hydrogen or hydrogen and carbon dioxide; the gas-injection well is connected with steam-injection heating ground layer equipment or electric heating equipment for heating gas injected into the ground layer at the bottom of the well; the production well is connected with oil extraction equipment; the hydrogen or the hydrogen and the carbon dioxide gas arecontinuously injected into the gas-injection well by using the equipment, the temperature of a near-well zone of the gas-injection well rises from 100 DEG C to 500 DEG C simultaneously through steam injection or electric heating when the temperature of an oil layer is less than 130 DEG C, and the gas injection amount is 5,000-7,000 cubic meters every day; when the hydrogen amount produced by someone well is above 500 cubic meters every day, the production well is closed down, while 50 percent of production wells are closed down, the hydrogen is stopped to inject and the hydrogen-injection oil extraction is ended; and the fluid in an aperture enclosed in a low-permeability oil reservoir is heated and expanded to swell the enclosed space burst to form a channel, so that crude oil in the enclosed aperture flows out.
Owner:PETROCHINA CO LTD

Apparatus and method for monitoring radiofrequency ablation by means of window modulation and Gauss polynomial fitting

The invention relates to medical image processing and ultrasonic temperature imaging, provides a method for improving the resolution of monitored radiofrequency ablation surgical electrode locations and heating ranges, and discloses an apparatus and method for monitoring radiofrequency ablation by means of window modulation and Gauss polynomial fitting. The technical scheme includes that the apparatus for monitoring radiofrequency ablation by means of window modulation and Gauss polynomial fitting is provided with a frame data setting module, an envelope image acquiring module, a Nakagami image forming module, a compounding Nakagami image acquiring module and a temporal compounding image ImgT (temporal compounding image) acquiring module; the frame data setting module, the envelope image acquiring module, the Nakagami image forming module, the compounding Nakagami image acquiring module and the temporal compounding image ImgT acquiring module are arranged on a transducer of an ultrasonic instrument; the method includes carrying out post-processing on obtained temporal compounding images ImgT by the aid of one-dimensional Gauss polynomials to obtain images for monitoring radiofrequency ablation. The apparatus and method have the advantages that the heating ranges can be effectively expanded by the aid of the method during monitored radiofrequency ablation surgery, the accuracy of cancer cell killing ranges of the radiofrequency ablation surgery can be improved, and monitoring effects can be improved; the apparatus and method are mainly applied to image processing.
Owner:TIANJIN UNIV

Rotary nanofiber preparation device

The invention discloses a rotary nanofiber preparation device. A charging vessel in the rotary nanofiber preparation device includes nozzles, an upper rectangular shell and a lower rectangular shell,wherein the upper rectangular shell and the lower rectangular shell are of hollow structures, the upper rectangular shell and the lower rectangular shell are connected up-down into a whole structure,a junction position of the upper rectangular shell and the lower rectangular shell are connected with the nozzles, and the inner parts of the upper rectangular shell and the lower rectangular shell together form an in-device cavity in communication with the nozzles. The in-device cavity is internally provided with a fiber source, an upper heater is arranged above the top of the upper rectangular shell, a lower heater is arranged below the bottom of the lower rectangular shell, the bottom of the lower rectangular shell is connected to a rotary shaft through a bottom bearing, a heat conducting chamber is formed in the position, close to the lower heater, on the rotary shaft, and buffer layers are arranged at the top and the side part of the heat conducting chamber correspondingly. The designdoes not need to apply a high-voltage electric field and is not subject to conductivity constraints, the heating effect is good, the production efficiency is high, and the adjustability is high.
Owner:吴江市欧鑫纺织品有限公司

Fracture-assisted combustion of oil in-situ stimulation thickened oil exploiting method

InactiveCN104265258AIncreased air injection capacityExtended heating rangeFluid removalCombustionFlue gas
The invention relates to a fracture-assisted combustion of oil in-situ stimulation thickened oil exploiting method. The method comprises the steps of conducting hydrofracture transformation on the oil reservoir on the perforating section of an oil well casing, forming vertical artificial fractures on both wings of a shaft, adding fracturing propping agents with which the fractures are filled, and conducting sieve tube gravel pack completion inside the casing; making the bottom hole temperature reach the ignition temperature of crude oil by means of the firing technique to ignite the oil layer of an oil well; injecting air into the oil well continuously by means of an air compressor; conducting soaking after air injection; opening the well for stoping. The method is mainly applied to low-permeation heavy oil reservoirs, thin-bedded heavy oil reservoirs and thin-interbed heavy oil reservoirs. Compared with the prior art, the method has the advantages that combustion of oil in-situ stimulation air injection speed and monocyclic cumulative injection rate can be increased by over three times, thermal front and flue gas front swept volume is increased by over three times, well yield is increased by over two times, and cyclic cumulative production is increased by over three times.
Owner:BEIJING PUXIN PETROLEUM TECH DEV

Crucible for manufacturing optical glass

The invention belongs to the technical field of optical glass smelting, and particularly relates to a crucible for manufacturing optical glass. The crucible comprises a crucible body, a motor and a sealing cover; a cavity is designed in the crucible body; a rotating shaft of the motor penetrates through the sealing cover and is fixedly connected to a stirring shaft in the cavity of the crucible body; the stirring shaft is rotatably connected to uniformly arranged stirring rods and heating rods; a first cavity is formed in the sealing cover; the rotating shaft of the motor is fixedly connectedto a rotating wheel in the first cavity; extrusion plates which are uniformly arranged are hinged to the wall of the first cavity; an inclined side of the extrusion plates are fixedly connected to extrusion bags; a second cavity is formed in the inner wall of the crucible body; the second cavity is arranged around the inner cavity of the crucible body; the extrusion bags are all communicated withthe inner cavity of the crucible body and the second cavity through one-way conduits; the motor rotates to drive the rotating wheel to extrude the extrusion bags, so that the extrusion bag pumps airflow in the inner cavity of the crucible body into the second cavity, the air pressure of the crucible body is reduced, and the melting point of raw materials is partially reduced.
Owner:刘明举

Electromagnetic assisted laser synchronous cladding device and method for remanufacturing metal parts

The invention discloses an electromagnetic assisted laser synchronous cladding device and method for remanufacturing metal parts. The electromagnetic assisted laser synchronous cladding device comprises a six-degree-of-freedom actuator, a laser, an electromagnetic induction heater, a powder spraying device and a workbench, wherein the working table is used for containing a workpiece to be machined, and the powder spraying device is used for spraying metal powder to the surface of the workpiece to be machined; the laser is installed at the tail end of the six-degree-of-freedom actuator, and thelaser is used for generating high-energy lasers for achieving cladding of the metal powder on the surface of the workpiece arranged on the workbench; the electromagnetic induction heater comprises aninduction coil and an induction power supply for supplying power to the induction coil, and the induction coil is made of a hollow metal tube; and cooling water is fed into the hollow metal tube forcooling, and the induction coil is arranged below the laser device and used for carrying out auxiliary cladding on the metal powder on the surface of the workpiece to generate an eddy current. According to the electromagnetic assisted laser synchronous cladding device, the structure is simple, the cladding speed is high, the powder utilization rate is high, and the applicable cladding material range is wide.
Owner:WUHAN UNIV OF TECH

Pipeline heating device in environment-friendly equipment

The invention relates to the technical field of pipelines, in particular to a pipeline heating device in environment-friendly equipment. A liquid outlet pipe is arranged on the right side of the lowerend of a round pipe and is fixedly connected with the round pipe. A closing cover is arranged at the left end of the round pipe and is formed by a fixing block and a stop block. The fixing block is arranged at the left end of the stop block and is fixedly connected with the stop block. The stop block is rotatably connected with the round pipe through a spiral thread, and the closing cover is rotatably connected with the round pipe through the fixing block. A rubber ring is fixedly connected to the left end of the stop block and is located on the outer side of the fixing block. According to the pipeline heating device in the environment-friendly equipment, through the arrangement of a heating bar, a liquid inlet pipe and the liquid outlet pipe, liquid can be heated by the heating device more sufficiently, and the heating efficiency of the heating device is improved; and liquid heating range of the heating device can be greatly enlarged through heat conduction strips so that the liquidcan be heated more uniformly, and accordingly, the problems of narrow heating range and non-uniform heating of tubular electric heating elements are solved.
Owner:江苏中远环保科技有限公司

Double-reheat steam turbine heat regenerative energy utilizing system for primary air and secondary air of heating boiler

ActiveCN105371267AEliminate air leakage and dust blockingReduce power consumptionFeed-water heatersBoiler furnaceCoal
The invention relates to a double-reheat steam turbine heat regenerative energy utilizing system for primary air and secondary air of a heating boiler. The system comprises a steam turbine power generating unit , a flue gas heating unit, an air overheating unit, an air preheating unit, a condensation water heating unit, a feedwater deoxidizing and heating unit, a feedwater heating unit, a primary air fan, a secondary air fan, a boiler furnace and a coal mill. According to the system, an air preheater which is necessarily arranged in the design of a conventional boiler is omitted, all stages of extracted steam of the steam turbine is utilized to heat air supplied by the primary air fan and the secondary air fan, it means that a set of heaters are arranged together with the condensation water heating unit and the feedwater heating unit, the heat regenerative range of the unit is greatly widened, and the cold source loss of the steam turbine is reduced; the secondary air temperature is significantly increased through the overheating degree of the extracted steam of all the stages, combustion of the boiler is enhanced, the stability of firing of the boiler is improved when the unit is operated at a low load, heat of a steam turbine heat regenerative system is effectively utilized, and the boiler fuel consumption is reduced.
Owner:广州粤能电力科技开发有限公司

Capillary liquid chromatographic column temperature control device

The invention relates to a capillary liquid chromatographic column temperature control device, and relates to a capillary liquid chromatographic column. The capillary liquid chromatographic column temperature control device comprises a cooling fan, a hollow capillary column supporting tube, a capillary liquid chromatographic column, a temperature control device and a base, wherein the cooling fan is arranged at the top of the hollow capillary column supporting tube, and the periphery of the hollow capillary column supporting tube is covered with an electric heating coating layer; a threaded groove is engraved in the outside of the hollow capillary column supporting tube and is used for fixing the capillary liquid chromatographic column, and the capillary liquid chromatographic column is spirally wound on the surface of the hollow capillary column supporting tube; the periphery of the hollow capillary column supporting tube wound with the capillary liquid chromatographic column is covered with a temperature sensitive resistance layer, and the temperature control device is provided with a temperature sensor and a display device; the temperature sensor is used for detecting the temperature of the temperature sensitive resistance layer, and the temperature signal output terminal of the temperature sensor is connected with the display device; and the temperature signals of the temperature sensor are displayed by the display device, and the hollow capillary column supporting tube is arranged on the base.
Owner:厦门宜柱科技有限公司

Whole vehicle thermal management system and vehicle

The invention relates to a whole vehicle thermal management system and a vehicle, which comprises a battery loop and a motor loop. The battery loop comprises a second water pump and a power battery which are connected with each other; the motor loop comprises a second pipeline, and a first water pump, a motor and a controller thereof, a water PTC (Positive Temperature Coefficient) of the air conditioning system, a warm air core of the air conditioning system, a third three-way valve and a first three-way pipe which are sequentially connected through the first pipeline, and two ends of the second pipeline are respectively connected with the third three-way valve and the first three-way pipe; and the second pipeline is provided with a first heat exchanger which is used for coupling the motor loop and the battery loop so as to heat the power battery. According to the whole vehicle thermal management system provided by the invention, the warm air core and the water PTC of the air conditioning system are connected in series in the motor loop, so that the motor loop and the heating module of the air conditioning system are completely coupled together, only one circulating water pump is needed, the complexity of the whole vehicle thermal management system is greatly simplified, and the cost is reduced. The manufacturing cost is reduced.
Owner:DONGFENG MOTOR GRP

Waste heat and electricity composite drive temperature increasing type heat pump circulation system

The invention discloses a waste heat and electricity compound drive temperature increasing type heat pump system and relates to the technical field of low-temperature industrial waste heat utilization. An ammonia water mixture serves as a working medium of the system, low-temperature smoke serves as a heat source, and waste heat and electricity are used for preparing industrial vapor. Low-temperature industrial waste heat is used for driving a rectifying tower to produce low-pressure ammonia vapor, meanwhile, high-pressure ammonia liquid evaporation is completed, electricity input externally is used for increasing the pressure of the low-pressure vapor and an ammonia water dilute solution, finally, the high-pressure ammonia vapor and the dilute solution complete the absorption process in an absorber, and released heat is used for preparing the industrial vapor. By means of the waste heat and electricity composite drive temperature increasing type heat pump circulation system, discharge smoke waste heat which cannot be utilized by a waste heat boiler is utilized, the beneficial effects that the wastes heat utilization efficiency is high and the temperature increasing amplitude is large are achieved, industrial vapor with the pressure being 0.5 MPa or above can be prepared, and the low-temperature waste heat utilization range is enlarged. Meanwhile, compared with an existing absorption compression type heat pump, a compressor and pump composite compression manner is adopted, compression power consumption is reduced, and the temperature increasing range of the temperature increasing type heat pump is enlarged.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Coupling agent smearing device for ultrasonography department and using method of coupling agent smearing device

The invention discloses a coupling agent smearing device for ultrasonography department and a using method of the coupling agent smearing device. The coupling agent smearing device for ultrasonographydepartment comprises a cylinder body, wherein a material storage cavity and an air cavity are formed in the cylinder body, a vertical pipe and two air conveying pipes are arranged in the material storage cavity, the two air conveying pipes are symmetrically arranged on the two sides of the vertical pipe, an electric heating wire is fixedly mounted in the vertical pipe, the bottom end of the vertical pipe extends into the air cavity, the bottom ends of the two air conveying pipes extend into the air cavity, an outer cover is fixedly mounted at the bottom of the cylinder body, and the bottom ofthe outer cover is of an opening structure. The coupling agent smearing device is reasonable in design and good in practicability, discharged coupling agents can be evenly attached to the surface ofa smearing roller, the smearing roller is pushed to roll, the coupling agents can be evenly smeared on the skin, the smearing effect is good, the coupling agent heating effect is good, the coupling agents are evenly heated, and when the coupling agents are smeared on the skin of a patient, the discomfort of a patient caused by lower temperature of the coupling agents is not easy to occur.
Owner:苏州朝霞生物科技有限公司
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