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1358 results about "Thermal fluids" patented technology

Thermofluids is a branch of science and engineering encompassing four intersecting fields...

Solar energy comprehensive utilization apparatus

The invention discloses a solar energy comprehensive utilization apparatus that comprises a photovoltaic generating assembly, a temperature difference generating assembly, and a cooling device. The photovoltaic generating assembly receives solar radiation and converts solar energy into electric energy. The temperature difference generating assembly, which is arranged at a backlight side of the photovoltaic generating assembly, is used for converting heat energy that is from the photovoltaic generating assembly into electric energy; besides, the temperature difference assembly includes a hot end and a cold end that is at an opposite side of the hot end, wherein the hot end is contacted with the backlight side of the photovoltaic generating assembly. The cooling device, which contains fluid medium, is arranged at one side of the temperature difference generating assembly and is contacted with the cold end of the temperature difference generating assembly; moreover, the cooling device enables the cold end of the temperature difference generating assembly to be cooled by circulating the fluid medium as well as thermal fluid medium is generated for utilization. According to the invention, a modularized solar energy generating and heat recovery and utilization apparatus is established, thereby realizing high efficient solar energy generating efficiency and electric heating comprehensive utilization efficiency.
Owner:ENN SCI & TECH DEV

Method for coal bed methane mining by multi-element thermal fluid foam displacement

The invention discloses a method for coal bed methane mining by multi-element thermal fluid foam displacement. Multi-element thermal fluid is injected into a coal bed of an injection-production well group through an injection well, and foaming agent is injected at intervals. A multi-element thermal fluid foam slug is formed in the coal bed to displace the coal bed methane in order to improve the recovery efficiency of the coal bed methane. The method specifically includes that extracted coal bed methane is compressed and mixed with compressed air, and then the mixture is injected into a multi-element thermal fluid generation device for ignition, extracted processed ground water is mixed to produce the multi-element thermal fluid mainly with high-temperature and high-pressure water vapor and mixed gas of carbon dioxide and nitrogen, the produced multi-element thermal fluid is injected into the underground coal bed through the injection well, a foaming system composed of preferred alkyl ether sulfonate and corrosion inhibitor is injected from an oil jacket annulus at intervals, the multi-element thermal fluid foam slug is formed under the ground to displace the coal bed methane, and water is drained and gas is recovered from a production well. The method has the advantages that fuel is easy to obtain, principles are clear and distinct, and the like, and can provide guidance for implementation of well stimulation of the coal bed methane.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Two-dimensional microcosmic visual thickened oil replacement simulation experiment system and use method thereof

ActiveCN104265255AMeet the needs of development researchReduce experiment costFluid removalFlat glassLine tubing
The invention provides a two-dimensional microcosmic visual thickened oil replacement simulation experiment system and a use method thereof. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system comprises a microcosmic simulation experiment device, a visual data acquisition device, a support device, a multivariate thermal fluid injection device, a confining pressure tracking device and a metering device, wherein the microcosmic simulation experiment device comprises a heating jacket, a clamper and a plate glass microcosmic model; the visual data acquisition device comprises a microscopic shooting device and a computer; the multivariate thermal fluid injection device comprises an ISCO injection pump, an oven and a replacement medium intermediate container, a water intermediate container, a thickened oil intermediate container, a first heat traced pipeline and a bypass pipeline; the confining pressure tracking device comprises an annular pressure tracking pump, an annular pressure tracking pump pressure meter, a vacuum pump and a first vacuum valve. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system give full consideration to characteristics of the thickened oil reservoirs, provides convenience for research on a thickened oil replacement mechanism through microcosmic experiments, has the advantages of low experiment cost, high work efficiency and the like, and can meet with demands on development and research of the thickened oil reservoirs.
Owner:PETROCHINA CO LTD

Method for exploiting natural gas hydrates by using high-pressure thermal jetting

InactiveCN101818635ASolve the problem of small mining rangeOvercoming or reducing self-protectionFluid removalJet flowEngineering
The invention relates to a method for exploiting natural gas hydrates by using high-pressure thermal jetting, comprising the following steps of: placing a high-pressure jetting device in an exploiting well; sending thermal fluids into a water injection pipe and a telescopic water gun through a high-pressure pump for spraying; causing high-speed jetting flows to directly act on the natural gas hydrates in the working radii of the high-speed jetting flows to cut and decompose the natural gas hydrates, changing non-decomposed natural gas hydrates into small blocks, bringing the small blocks into an exploiting pipe along with return flows, and then causing the small blocks together with the gas hydrates to rise to a gas-liquid separation device; separating gas and liquid through the gas-liquid separation device, and sending the gas into a gas recovering device. The invention solves the problem of small exploitation range in the exploitation process of the natural gas hydrates, ensures the thermal fluids to act on the surfaces of the non-cracked natural gas hydrates all the time, has a good thermal conduction effect and overcomes or reduces the self protection of the natural gas hydrates; and the telescopic water gun on a nozzle can not only be horizontally rotated, but also can be moved up and down along a vertical shaft by utilizing the power of a drilling machine, thereby ensuring the cutting of large-scale natural gas hydrate ledges.
Owner:JILIN UNIV

Method and device for comprehensively utilizing energy of high-pressure natural gas

InactiveCN102383868AImprove the efficiency of pressure energy utilizationImprove system stabilityInternal combustion piston enginesGaseous fuelsCompressed natural gasChemical energy
The invention relates to a method and a device for comprehensively utilizing energy of high-pressure natural gas. The method comprises the following steps of: carrying out decarbonization and dehydration on the high-pressure natural gas; reducing a temperature and a pressure of the high-pressure natural gas by turbine expansion; generating electricity by shaft work output by a turbine expansion engine; carrying out cold energy collection on the natural gas subjected to turbine expansion by a heat exchanger, feeding the natural gas subjected to heat exchange by the heat exchanger into an internal combustion engine to generate chemical energy; generating electricity by the chemical energy; and feeding high temperature fume generated by the internal combustion engine into a waste heat boiler to generate steam or hot water. The device comprises a high-pressure natural gas pipeline, a low-pressure natural gas pipeline, a pressure regulator, a valve, the turbine expansion engine, a turbine expansion engine generating set, an internal combustion engine generating set, the heat exchanger, a decarbonization and dehydration mechanism, a frequency converter and the waste heat boiler. The decarbonization and dehydration mechanism is connected with the high-pressure natural gas pipeline and the turbine expansion engine. The turbine expansion engine is connected with a generator and the heat exchanger. The heat exchanger is connected with the low-pressure natural gas transmission and distribution pipeline, thermal fluid and a cold energy pipeline. The internal combustion engine is connected with the generator, the low-pressure natural gas pipeline and the waste heat boiler. Heat energy generated by the waste heat boiler is transferred to thermal equipment. Two types of electric energy are transferred to electric equipment through the frequency converter. The energy utilization rate is improved.
Owner:刘俊德 +2

Device and method for exploiting natural gas hydrates by means of thermal fluid fracturing

The invention belongs to the technical field of unconventional oil and gas exploitation, and particularly relates to a device and a method for exploiting natural gas hydrates by means of thermal fluid fracturing. The device for exploiting the natural gas hydrates by means of thermal fluid fracturing comprises a fracturing fluid injection system, a natural gas exploitation system and a well system; the fracturing fluid injection system is used for providing high-pressure thermal fracturing fluid and injecting the high-pressure thermal fracturing fluid into the well system; the natural gas exploitation system is used for controlling the pressure difference between a hydrate reservoir stratum and the ground so that the hydrates can be exploited in a depressurization manner; and the well system is used for opening the hydrate reservoir stratum and guiding the fluid to flow into or flow out of the reservoir stratum. The method for exploiting the natural gas hydrates by means of thermal fluid fracturing is implemented by the device. The device and the method have the advantages that a plurality of processes for exploiting hydrates can be combined and used together, the hydrate exploitation efficiency is improved, and the method for exploiting the hydrates is high in prospect.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Experimental apparatus for exploiting natural gas hydrate reservoir by means of thermal fluid fracturing

The invention belongs to the technical field of unconventional oil and gas exploitation, and particularly relates to an experimental apparatus for exploiting natural gas hydrate reservoir by means of thermal fluid fracturing. The experimental apparatus for exploiting the natural gas hydrate reservoir by means of thermal fluid fracturing comprises a hydrate core three-axis fracturing system, a fracturing fluid injection system, a natural gas exploitation system and an acoustic emission monitoring system, and is characterized in that the hydrate core three-axis fracturing system is used for fracturing a hydrate core to form hydraulic fracture; the fracturing fluid injection system provides high-pressure thermal fracturing fluid in a hydrate fracturing procedure; the natural gas exploitation system is used for exploiting the natural gas hydrate core in a depressurization manner; and the acoustic emission monitoring system is used for detecting an expansion procedure of the fracture and flowing states of multiple phases of fluid in the fracture. The experimental apparatus has the advantages that a ground stress state of the actual natural gas hydrate reservoir can be truly simulated, and mechanism study and effectiveness evaluation for exploitation for the natural gas hydrate reservoir by means of thermal fluid fracturing can be implemented.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Novel printed circuit board type heat exchanger based on 3D printing technology

The invention discloses a novel printed circuit board type heat exchanger based on a 3D printing technology. The novel printed circuit board type heat exchanger based on the 3D printing technology comprises a heat exchange main body formed on the basis of the 3D printing technology, wherein two ends of the heat exchange main body are a first heat exchanger inlet and outlet section and a second heat exchanger inlet and outlet section separately; a thermal fluid inlet channel and a cold fluid outlet channel are formed in the first heat exchanger inlet and outlet section in the vertical direction; a thermal fluid outlet channel and a cold fluid inlet channel are formed in the second heat exchanger inlet and outlet section in the vertical direction; a plurality of layers of periodic heat exchange channels are formed in the middle of the heat exchange main body from bottom to top; part of the periodic heat exchange channels communicate with the thermal fluid inlet and outlet channel; and the rest of periodic heat exchange channels communicate with the cold fluid inlet and outlet channel. The 3D printing technology is adopted, the whole heat exchanger is formed integrally, and loss of drainage, resistance and the like due to manufacturing errors can be reduced.
Owner:XI AN JIAOTONG UNIV

Sludge drying system and using method thereof

The invention relates to a sludge drying system and a using method thereof. The system is characterized by comprising a sludge drying incineration loop, a conduction oil heat supply circulation loop and a high temperature smoke loop, wherein the sludge drying incineration loop comprises a dry sludge back-mixing device, a sludge drier, a sludge incinerator, a dry sludge storage bin and a dry sludge regulating valve; the conduction oil heat supply circulation loop comprises a conduction oil pump, a solar thermal collector, a solar radiation survey meter, a high temperature heat exchanger and two conduction oil regulating valves; and the high temperature smoke loop comprises an air blower. The sludge drying method comprises the following steps: firstly, drying wet sludge in the sludge drier to obtain dried sludge; returning and inputting the sludge to the sludge back-mixing device; mixing and re-inputting the dried sludge and the wet sludge to the sludge drier for drying; incinerating the dried sludge in the sludge incinerator, wherein heat energy released by high temperature smoke which is generated by incineration provides energy for drying with solar energy so as to avoid primary energy consumption. The system and the method can be widely applied to sludge drying treatment engineering.
Owner:TSINGHUA UNIV +3

Heavy oil thermal recovery microscopic displacement experiment system

InactiveCN105569637AAvoid reflux fluctuationsImprove insulation effectSurveyConstructionsModel systemEngineering
The invention provides a heavy oil thermal recovery microscopic displacement experiment system. The heavy oil thermal recovery microscopic displacement experiment system comprises an injection system, a model system, an output system, and an image acquisition and analysis system. The injection system is provided with a power source to provide displacement thermal fluid. The model system receives the displacement thermal fluid provided by the injection system, and uses an inert gas to apply and control circling pressure on the periphery of a micro model, so as to carry out a displacement experiment on heavy oil by the thermal fluid. The output system receives output liquid after the displacement experiment, and maintains certain return pressure. The image acquisition and analysis system performs dynamic observation and shooting on a microscopic displacement process, and researches microscopic percolation characteristics and displacement mechanism. Through improving heating heat-retaining property and sealing property of the experiment system and return pressure control design, the heavy oil thermal recovery microscopic displacement experiment system makes an experiment process and an experiment method more reliable. The system can carry out heavy oil thermal recovery microscopic displacement experiments, and researches displacement effect analysis and displacement mechanism.
Owner:CHINA PETROLEUM & CHEM CORP +1

Vertically stacked photovoltaic and thermal solar cell

According to some embodiments, the present invention provides a novel photovoltaic solar cell system from photovoltaic modules that are vertically arrayed in a stack format using thin film semiconductors selected from among organic and inorganic thin film semiconductors. The stack cells may be cells that are produced in a planar manner, then vertically oriented in an angular form, also termed herein tilted, to maximize the light capturing aspects. The use of a stack configuration system as described herein allows for the use of a variety of electrode materials, such as transparent materials or semitransparent metals. Light concentration can be achieved by using fresnel lens, parabolic mirrors or derivatives of such structures. The light capturing can be controlled by being reflected back and forth in the photovoltaic system until significant quantities of the resonant light is absorbed. Light that passes to the very end and can be reflected back through the device by beveling or capping the end of the device with a different refractive index material, or alternatively using a reflective surface. The contacting between stacked cells can be done in series or parallel. According to some embodiments, the present invention uses a concentrator architecture where the light is channeled into the cells that contain thermal fluid channels (using a transparent fluid such as water) to absorb and hence reduce the thermal energy generation.
Owner:UNIV HOUSTON SYST
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