1012 results about "Heat recirculation" patented technology

A high-efficiency heat cycle system including a compressor, a first turbine, first and second heat exchangers 7 and 8, a first pump, and an expander, and a composite heat cycle power generator using the high-efficiency heat cycle system. Working gas Fg compressed in the compressor (C) drives a first turbine (S) and is thereafter cooled by passing through a heat dissipating side of a first heat exchanger (7) and then raised in pressure by a first pump (P) to form high-pressure working liquid Fe, the high-pressure working liquid is expanded and evaporated in a expander (K) to form working gas Fg, said working gas Fg is heated by passing through a heat receiving side 82 of the second heat exchanger before being introduced into the compressor C. A heat dissipating side 81 of the second heat exchanger comprises a heat dissipating portion of a refrigerating machine or a heat dissipating portion for waste heat from a heating machine.

An active thermal energy storage system is disclosed which uses an energy storage material that is stable at atmospheric pressure and temperature and has a melting point higher than 32 degrees F. This energy storage material is held within a storage tank and used as an energy storage source, from which a heat transfer system (e.g., a heat pump) can draw to provide heating of residential or commercial buildings and associated hot water. The energy storage material may also accept waste heat from a conventional air conditioning loop, and may store such heat until needed. The system may be supplemented by a solar panel system that can be used to collect energy during daylight hours, storing the collected energy in the energy storage material. The stored energy may then be used during the evening hours to heat recirculation air for a building in which the system is installed.

An active thermal energy storage system is disclosed which uses an energy storage material that is stable at atmospheric pressure and temperature and has a melting point higher than 32 degrees F. This energy storage material is held within a storage tank and used as an energy storage source, from which a heat transfer system (e.g., a heat pump) can draw to provide heating of residential or commercial buildings and associated hot water. The energy storage material may also accept waste heat from a conventional air conditioning loop, and may store such heat until needed. The system may be supplemented by a solar panel system that can be used to collect energy during daylight hours, storing the collected energy in the energy storage material. The stored energy may then be used during the evening hours to heat recirculation air for a building in which the system is installed.

The invention provides a process and device for carrying out stage dry distillation on oil shale under the state of full recycle, with the gas as the heat carrier. The oil shale is divided into three different sizes (such as 0-6mm, 6-20mm and 20-50mm) through crushing and screening, and the oil shale is firstly dried and heated to the temperature between 50 DEG C and 150 DEG C by the waste smoke exhausted from gas heating furnaces and then enters into the different sizes of furnaces for dry distillation to undergo dry distillation. After being treated by water spraying and an indirect cooling tower, a rotary trapper and an electric trapper for oil collection, the dry distillation oil and gas undergo oil-gas-water separation, and after separation, the oil enters into a storage tank, the water enters into a circulating water tank and the first part of gases serves as the heat carrier and is recycled, the second part of gases is used as the fuels for the heating furnaces and the third part of gases is used as the fuel gases for power generation.

A shelter comprises an enclosure for delimiting an air-conditionable enclosure interior and a container that is externally mounted to the enclosure and has a container space for receiving a cooling installation. The enclosure comprises at least one passage for heat recirculation from the enclosure interior to the container space. The shelter provides protection against detrimental exterior influences so that a reliable and energy-efficient cooling of the enclosure interior is ensured.

The invention discloses a coal-fired power plant flue gas heat regenerative system and an energy-saving water-saving ultra-clean discharging method. The temperature of the flue gas is reduced to about 90-110 DEG.C through a low-temperature coal economizer, and the recycled flue gas heat heats primary and secondary wind entering a boiler through a steam air heaters, so that the first stage of heat regenerative cycles is achieved. The temperature of the flue gas at the outlet of a desulfurization tower is reduced to 30-40 DEG.C through a vacuum flash evaporation and solidification device and a low-temperature heat pump heat exchange device, and a part of water vapor of the flue gas is condensed and collected, so that water is saved. The low-temperature heat pump heat exchange device absorbs the latent heat released in flue gas sensible heat and condensation processes, and dry as-fired coal and air are heated, so that the second stage of heat regenerative cycles is achieved. A boiler slag discharge system recycles the waste heat of heat slag, and the as-fired coal is heated, so that the third stage of heat regenerative cycles is achieved. When the waste heat is not used up, the remained waste heat can be utilized, so that energy is saved. Low-temperature desulphurization slurry led out from the vacuum flash evaporation and solidification device is injected into the desulfurization tower, so that the desulphurization efficiency is improved, and an ultra-clean discharging objective is achieved.

In a shelter comprising an enclosure for delimiting an air-conditionable enclosure interior and a container that is externally mounted to the enclosure and has a container space for receiving a cooling installation, a superior protection against detrimental exterior influences shall be provided so that a reliable and energy-efficient cooling of the enclosure interior is ensured.To solve this problem it is suggested that the enclosure comprises at least one passage for heat recirculation from the enclosure interior to the container space.

The present invention relates to a power module in which an insulated circuit board is fixed to one main surface of a heat discharge plate. It is an object thereof to provide a power module in which the heat discharge characteristics are improved without any marked warping being generated, and that has an extended heat cycle longevity.In the power module 10 of the present invention, a square insulated circuit board 12 is fixed to one main surface of a heat discharge plate 11. The heat discharge plate 11 is formed of an Al based alloy plate having a thickness A of 3 to 10 mm, and the insulated circuit board 12 having a side B of 30 mm or less in length is brazed directly onto the heat discharge plate 11. It is-preferable that the brazing material used is one or two or more brazing materials selected from Al—Si, Al—Ge, Al—Cu, Al—Mg, and Al—Mn based brazing materials. It is also preferable that the insulated circuit board 12 is formed by a ceramic substrate 12a and Al plates 12b and 12c that are bonded to both surfaces thereof, and that the Al plate 12b has a purity of 99.98 or greater percent by weight.

The invention discloses a cooling system for a cold insulation superconducting cable. The cooling system comprises a liquid nitrogen storage tank. The cooling system is characterized by further comprising a refrigerating machine, a supercooling box, a pumpdown device and vacuum insulation liquid nitrogen pipelines. Liquid nitrogen is arranged inside the supercooling box. The temperature of the liquid nitrogen inside the supercooling box is controlled by the refrigerating machine. A liquid nitrogen pump used for supplying liquid nitrogen circulation power is connected to the supercooling box. A liquid inlet and a liquid outlet of the supercooling box are connected with the superconducting cable through the vacuum insulation liquid nitrogen pipelines. The liquid nitrogen storage tank is connected with the vacuum insulation liquid nitrogen pipeline which is connected with the liquid inlet through a pipeline in a mutual communication mode. A coiled pipe heat exchanger is arranged inside the supercooling box. The pumpdown device makes contact with the liquid nitrogen inside the supercooling box through a pipeline. A nitrogen discharge outlet is formed in the supercooling box. The cooling system for the cold insulation superconducting cable is simple in structure, convenient to use, and capable of realizing heat exchange circular integration.

A heat pump type air conditioner refrigerating circulating system with a subcooler comprises a liquid storage device, a compressor, a four-way reversing valve, an indoor-side heat exchanger, a one-way valve, an electronic expansion valve, the subcooler and an outdoor-side heat exchanger. The liquid storage device, the compressor, the four-way reversing valve, the subcooler and the outdoor-side heat exchanger are located on the outdoor side and the indoor-side heat exchanger is located on the indoor side. Outdoor air passes the subcooler firstly and then flows through the outdoor-side heat exchanger. When the system is in a heating circulating mode, the indoor-side heat exchanger serves as a condenser, the outdoor-side heat exchanger serves as an evaporator, a high-temperature refrigerating agent is condensed and emits heat in the indoor-side heat exchanger to supply heat to the indoor environment and then flows into the subcooler to emit heat, on the one hand, the refrigerating agent is further subcooled, and on the other hand, the temperature of air entering the outdoor-side heat exchanger is increased, the evaporation temperature of the system is increased, and frost formation of the outdoor-side heat exchanger is effectively slowed. The subcooler still can further subcool the refrigerating agent when the system is in a refrigerating circulating mode.

The invention discloses a heat pump compressed air energy storage system. The heat pump compressed air energy storage system comprises a heat pump high-temperature heating cycle loop and a compressedair energy storage and energy release loop. The heat pump compressed air energy storage system compresses the air into a high-pressure state through off-peak (low-price) electricity of a power station, stores air compression heat and produces and stores high-temperature heat through the heat pump high-temperature heating cycle loop. During the period of electricity consumption peak, the high-pressure compressed air absorbs the stored compression heat and the stored high-temperature heat energy in sequence and then is fed into an expansion machine to drive a power generator to generate electricity. The heat pump compressed air energy storage system provided by the invention has the advantages of being simple in structure, high in efficiency, strong in flexibility, suitable for peak regulation of a power grid and various types of renewable energy source power stations, free of generation of greenhouse gases and the like.

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.

The invention provides an intercooling or intercooling recuperating layout for an aero-engine. The layout comprises a Brayton cycle in a main flow path and a supercritical state fluid cycle, wherein the two cycles are mutually independent and are coupled through a micro-scale heat exchanger. The micro-scale heat exchanger is a supercritical micro-scale compact rapid heat exchanger comprising a heat exchanging element and two working mediums, wherein the two working mediums exchange heat through the heat exchanging element. The micro-scale heat exchanger is characterized in that one of the working mediums employs a supercritical state fluid, the other working medium is not limited, the size of the heat exchanging element is in a micro-scale range, the critical pressure of the supercritical state fluid is at least 0.5 MPa, the temperature of the supercritical state fluid is at least 200 DEG C higher than critical temperature, and micro-scale refers to that the geometric scale of the basic heat exchanging element is no more than 2 mm. The intercooling or intercooling recuperating layout provided by the invention overcomes the disadvantages of conventional intercooling or intercooling recuperating layouts, improves the cycle efficiency of the aero-engine and reduces the oil consumption rate of the aero-engine.

The invention discloses a razing method for DD5 single crystal alloy, and belongs to the technical field of brazing. The method is carried out according to the following steps of (1) cleaning a sample, (2) assembling the sample, (3) applying coating, (4) putting the sample with brazing filler metal applied into a constant temperature drying baker to be dried, and (5) carrying out vacuum brazing, putting the sample into a vacuum brazing furnace to carry out brazing, heating up to 500-550 DEG C with the speed of 5-20 DEG C / min, keeping the temperature for 10-30min, heating up to 1120-1160 DEG C with the speed of 5-20 DEG C / min, keeping the temperature for 10-30min, then heating up to 1200-1230 DEG C with the speed of 5-20 DEG C / min, keeping the temperature for 20-60min, carrying out furnace cooling to the temperature below 1000 DEG C, carrying out rapid cooling by charging 1-2 bar argon, and taking the sample out of the furnace after being cooled to the temperature below 80 DEG C. According to the razing method for the DD5 single crystal alloy, brazing connection of DD5 alloy turbine blades can be achieved, the strength of brazing connectors meets operating requirements, the average instant tensile strength of the DD5 alloy at the high temperature of 980 DEG C is 580 MPa after brazing heat circulation, compared with DD5 alloy technical conditions, the instant tensile strength is reduced by 17%, and the endurance property at the high temperature of 1093 DEG C meets requirements of technical conditions.

The invention relates to the fluid heater using a heat pump and a control method of the fluid heater, in particular, a primary heating type heat pump water heater with a temperature control switching function and a three-water tank double-loop circulation water heating structure. The primary heating type heat pump water heater includes a heat pump unit and three water tanks; the first water tank and the second water tank are connected with a condenser through a three-way valve and a circulating pump, so that a first heating circulating loop and a second heating circulating loop of which the switching is controlled by the three-way valve can be formed; cold water inlets of the first water tank and the second water tank are connected with a cold water incoming pipeline through a first electromagnetic valve and a second electromagnetic valve; and hot water outlets at the tops of the first water tank and the second water tank are connected with a hot water storage tank through a three-way constant temperature hot water pipe, so that a first constant temperature water outgoing channel and a second constant temperature water outgoing channel which are controlled by the first electromagnetic valve and the second electromagnetic valve can be formed. The temperature control-switched three-water tank double-loop circulation water heating structure is adopted to product hot water, and outgoing water temperature can achieve set temperature and is not affected by incoming water flow, and the stability and continuity of the heating of hot water can be ensured.

Disclosed is a cold energy recovery-type variable-capacity air-source heat pump system, relating to combined heating and refrigerating systems running in an alternating or synchronous manner, wherein a first subsystem and a second subsystem share a double-channel variable-capacity heat exchanger; a heat exchanger main body comprises two manually independent refrigerant pipe pass channels, and a refrigerant in the two channels synchronously carries out heat exchange with hot medium water in a shell pass channel; the shell pass channel establishes a water-medium heat-supplying circulation by means of a hot water circulation pipeline and a hot water circulation pump; the first subsystem and the second subsystem are connected to the two refrigerant pipe pass channels via a control valve group.

The invention discloses an ecological separation and recovery technology of city household garbage and sewage sludge resource and a device thereof, which is a new manner of garbage disposal. The traditional garbage burning is easy to produce dioxins and cause the evaporated liquor of garbage to discharge in air so as to cause atmospheric environmental pollution and resource energy waste. The invention is an exhaust gas closed-cycle system for the technology of garbage drying, vinegar liquor recovery and dry combustion comprising a drying kiln, an evaporated liquor recovery device, a combustion furnace, and the like; the garbage firstly enters the drying kiln for fumigation drying; the evaporated liquor in the drawing smoke is recycled through a condenser and a cyclone and is refined into resource vinegar; the dry garbage out of the furnace is classified and recycle into recycled, combustible and incombustible harmless resources; the combustible dry garbage is input in the combustion furnace for high temperature starved air combustion, and the heated recycle smoke then enters the dry kiln to recycle heat and mass transfer. The green separation technology can inhibit the generation of dioxins, and the resource is completely recycled without discharging smoke and evaporated liquor in air, thereby realizing zero discharge of garbage disposal and resource energy regeneration.

A refrigerant system has a condenser of microchannel design and construction and includes a reheat cycle. The reheat cycle includes a refrigerant flow control device, such as a three-way valve, for selectively routing at least a portion of refrigerant through a reheat heat exchanger from a location between a compressor and expansion device. A control for the refrigerant system selectively actuates this refrigerant flow control device to route at least a portion of refrigerant through the reheat heat exchanger at system start-up.

The invention discloses a boiler smoke discharging condensed water heat-carrying circulation based three incorporated tower heat exchange method and device and belongs to the technical field of exhaust air heat recovery and boiler heating. By adopting a spray tower heat exchange structure with three incorporated towers, the device is divided into an air heating and humidification region, a smoke high-temperature heat exchange region and a smoke low-temperature heat exchange region from bottom to top. Smoke enters the high-temperature heat exchange region from the middle part of the tower, performs heat exchange with high-temperature waste heat circulation water, then rises to the low-temperature heat exchange region and is exhausted from the tower top after performing heat exchange with low-temperature waste heat circulation water; the low-temperature waste heat circulation water is sprayed from a low-temperature spraying device for heat exchange, is supplied to an air heating and humidification section for spraying heat exchange after passing through a water-air separator and heats inlet air of a boiler or directly descends to the high-temperature heat exchange region; and the high-temperature waste heat circulation water is sent into the high-temperature heat exchange region from a high-temperature spraying device for heat exchange and is supplied outside and heats heating net water after gathering in a pool at the tower bottom. A set of system can realize a main heat exchange process required for smoke recovery and heating, so that the system flow is greatly improved, the equipment amount and the occupying space are reduced, and investment and energy consumption are lowered.

The invention relates to a mutually-cyclical solid fuel gasification device with double fluidized beds and a solid fuel gasification method. The method comprises the following steps: performing a pyrolysis gasification reaction between a solid fuel and a gas for fluidizations and reactions in a fluidized bed gasification reactor so as to generate a combustible gas, as well as solid coke and semicoke which are not subjected to incomplete pyrolysis gasification reaction, wherein the heat required by the pyrolysis reaction is obtained from high-temperature heat-carrying circulating bed materials; feeding the solid coke / the semicoke and the heat-carrying circulating bed materials with heat discharge into a pneumatic back-feeder through a cyclone separator or an overflow device according to a running state in the reactor; controllably sending the solid coke / the semicoke and the heat-carrying circulating bed materials into a combustion reactor; reheating the heat-carrying circulating bed materials due to the combustion of the solid coke / the semicoke in the combustion reactor; and refeeding the heated heat-carrying circulating bed materials into the gasification reactor through a back-feeding device so as to provide the heat for the pyrolysis gasification reaction. Thus, the device is gasified while the running parameters of the bubbling fluidization and the fast fluidization are adapted. As a result, the solid fuel gasification device provided by the invention has the good adaptability for various combustible solids; and the high running efficiency of the whole device is realized.

The invention discloses a device capable of carrying out normal regulating and controlling in a constant temperature and humidity field by way of energy storage under the condition of disconnecting a power grid, which comprises a constant temperature and humidity storage space, an electric refrigerating / heating system, a cold and heat storage system, a temperature and humidity regulating system, and a PLC (programmable logic controller) constant temperature and humidity control system, wherein the constant temperature and humidity storage space, the electric refrigerating / heating system, the cold and heat storage system and the temperature and humidity regulating system are all provided with temperature and humidity sensors which are connected to the PLC constant temperature and humidity control system; meanwhile, the device disclosed by the invention is provided with an energy storage device, an energy storage material and a battery which are combined with a heat exchanger, a constant temperature and humidity regulating system, a refrigerating / heating humidifying circulation system and an automatic PLC temperature and humidity control system so as to form an energy storage type automatic constant temperature and humidity regulating and controlling system for keeping the constant temperature and humidity of the storage space or a display space within a period that a mains supply is switched on and a designated power failure period, wherein the refrigerating / heating circulation system is implemented according to a principle that refrigeration is preferred.

The invention discloses a method for indirectly promoting medium and low temperature solar heat energy grades, which comprises the following steps of: introducing medium and low temperature solar heat energy in chemical regenerative cycle, converting the solar heat energy into steam internal energy by means of steam evaporation latent heat, converting the steam internal energy into synthetic gas chemical energy by reforming reaction with the participation of steam to realize grade promotion, and finally implementing heat power conversion in a combustion gas turbine system. Because of the introduction of solar energy, turbine exhaust waste heat reclamation is improved, fossil energy consumption is reduced, meanwhile, steam yield is increased, and chemical regeneration and physical regeneration benefits are increased. The solar energy heat-to-power net efficiency can reach 25 to 30 percent; and compared with the conventional chemical regenerative cycle, the efficiency is improved by 5.7 percent, the fossil energy can be saved by 20 to 30 percent, and meanwhile, CO2 emission reduction is realized. Therefore, the method has good economic efficiency and broad engineering application prospect.

The invention relates to a packaging and interconnecting structure and method for copper protruded points filled up with double layers of underfill. The packing and interconnecting structure is characterized in that the chip end is filled up with the first layer of underfill, the first layer of underfill is manufactured on a wafer through spin coating process, the substrate end is filled up with the second layer of underfill, the substrate end is filled through capillary effects after flip-chip welding is finished, the glass transition temperature and the Young modulus of the first layer of underfill are lower than those of the second layer of the underfill, a chip and a substrate are connected through the copper protruded points and tin-contained solder protruded points to achieve high-density connection, and the copper protruded points are manufactured in twice to guarantee that the first layer underfill is completely filled and the contact between the protruded points and the tin-contained solder is enough. The whole technological process is compatible with existing IC process and has higher vertical interconnection density, better electric connection characteristics and higher mechanical stability. Heating thermal circulation tests show that the service life of chips of the packaging structures is greatly prolonged.

The invention discloses a determining device and a measuring method thereof for residual heat storage quantity of a phase change energy storage material. The determining device and the measuring method belong to the technical field of phase change material state evaluation. The determining device comprises a thermal insulation box, wherein a heating device, a heat exchange circulating water pipeline, a water inlet temperature measuring device, a water outlet temperature measuring device and a phase change energy storage material temperature measuring device are arranged inside the thermal insulation box, the water inlet temperature measuring device is arranged at a water inlet of the internal heat exchange circulating water pipeline inside the thermal insulation box, the water outlet temperature measuring device is arranged at a water outlet of the internal heat exchange circulating water pipeline inside the thermal insulation box, the phase change energy storage material temperature measuring device is used for measuring temperature of a phase change energy storage material to be measured, and the heating device is used for heating the phase change energy storage material to be measured; a power consumption measuring device is arranged for recording power consumption of the heating device; an outer surface temperature measuring device is arranged on the outer surface of the thermal insulation box, and is used for measuring heat dissipating quantity of the thermal insulation box; and an external waterway communicated with the heat exchange circulating water pipeline is arranged outside the thermal insulation box, and a flow meter is arranged inside the external waterway. The determining device and the measuring method thereof can obtain the residual heat storage quantity of the phase change energy storage material through measurement and calculation in real time.

The invention discloses a sterilizing and drying box with a layered structure. The sterilizing and drying box comprises a box body and a thermal circulation device, the box body is provided with a hollow stainless steel cavity, a desk type baking car and a baking tray with a layered structure are arranged in the box body, the baking tray is arranged on the baking car, the thermal circulation device comprises a heater, an inner circulation fan, an air feeder and a convection wall fine-adjustment plate, the heater is fixedly arranged on the inner wall of the box body, the inner circulation fan and the air feeder are fixed to the outer side of the box body through flanges, the convection wall fine-adjustment plate is vertically and internally arranged on one side of the box body, an inlet of the convection wall fine-adjustment plate is communicated with air outlets of the inner circulation fan and the air feeder through pipelines, and an outlet of the convection wall fine-adjustment plate is communicated with the cavity of the box body. By the aid of the sterilizing and drying box, air class is rapidly increased, moisture is automatically removed, a user and a machine are bridged, full-automatic measurement and control are realized, and enterprise resources are saved.

A system for cleaning the interior surface of an oven appliance using heat and steam cycles is provided. More particularly, the present invention uses a heat cycle to break down water insoluble food residues into soluble materials that are then cleaned by a steam cycle. Following the steam cycle, the remaining food residues can be removed from the interior surface of the oven appliance.