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38results about How to "Improve heat conversion rate" patented technology

Gas-driven air source heat pump heat supply unit for central heating system

The invention discloses a gas-driven air source heat pump heat supply unit for a central heating system. The gas-driven air source heat pump heat supply unit for the central heating system comprises an internal combustion engine. The internal combustion engine, a compressor, a condenser and a flue gas waste heat recoverer are connected in sequence, so that a gas-heating hot water system is formed. The condenser is further connected with a first evaporator which is connected back to the compressor, so that an air source heat pump refrigerant system is formed. The flue gas waste heat recoverer is arranged on a flue gas pipeline of the internal combustion engine. A water outlet pipeline of the flue gas waste heat recoverer is connected with a water supply pipeline of a heat supply system, and the heat supply system supplies circulating high-temperature water to users. The internal combustion engine is adopted to drive a heat pump to pump heat in air, then waste heat continues to be applied to the heat supply system, the integral heat energy conversion rate can be 200%, and the heat energy conversion rate is high. The outlet water temperature of the condenser can be 60 DEG C or over by increasing the condensation pressure, water discharged out of the condenser further absorbs flue gas heat through the flue gas waste heat recoverer arranged on the exhaust pipeline of the internal combustion engine, and the water supply temperature can be up to 85 DEG C.
Owner:山东生态家园环保股份有限公司

Bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage

The invention discloses a bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage. According to the process, the wet garbage is fed into a C5 discharge pipe, high-temperature alkali powder inside the C5 discharge pipe rapidly dries and alkalifies the garbage, the dry and combustible garbage enters a kiln tail smoke chamber along with the powder to be rapidly gasified and combust, high-temperature steam and combustion emissions generated by combustion are pumped into a bypass settlement flue, are processed by the bypass settlement flue and a bypass draught fan and are mixed into exhaust gas waste heat of a grate cooler head, then the blast capacity and the blast temperature are adjusted, then a steam boiler produces steam power for power generation, garbage not combusting out in time and ash combusting out enter a rotary kiln along with raw power materials to be combusted to be clinker, and hydrocarbon not combusting out in time ascends into a decomposing furnace to continue to combust out. The invention further discloses the bypass power generation system of the dry-process rotary kiln cooperative processing of the wet garbage. The method and system can solve the problems that urban life garbage affects the kiln condition and coal consumption is increased, and can effectively eliminate the problem that a kiln system is blocked by water and chlor-alkali in the garbage.
Owner:长沙紫宸科技开发有限公司

Biomass fuel energy-saving supply system for thermal power plant boiler and supply method thereof

The invention discloses a biomass fuel energy-saving supply system for a thermal power plant boiler. The system comprises an assembling and connecting frame, an aggregate crushing box, a conveying bin, a supply cylinder and a first hydraulic pump. A plurality of transverse partition plates are arranged in the middle of the assembling and connecting frame in parallel, and one ends of the transversepartition plates are each perpendicularly provided with a longitudinal partition. The system has the advantages that fuel is scraped and cut through cutter edges, the fuel and a scraper are oppositein rotating direction, the collision probability of the fuel and the scraper is increased, the fuel crushing efficiency and crushing degree of the scraper are improved, the fuel is crushed more thoroughly, fuel combustion is more sufficient and more thorough, the fuel thermal energy conversion rate is increased, when the boiler generates the equivalent electric quantity, less biomass fuel is adopted, and working energy conservation of the supply system is ensured; a pressing plate moves up and down to extrude the biomass fuel, the density is larger when the fuel is put into the boiler, the fuel containing amount in the boiler is increased, and the phenomenon that the boiler is blocked by the fuel is avoided.
Owner:王幼林

Metal deposition forming method and device based on ultra-high frequency induction heating technology

The invention discloses a metal deposition forming method based on an ultra-high frequency induction heating technology. An ultra-high frequency induction heating power supply is utilized to generatea high frequency alternating magnetic field near an induction coil, a metal wire material is fed into the center of the induction coil, induction eddy current is generated in the metal wire material under the action of the alternating magnetic field, and the metal wire material is melted by the action of eddy current heat and is stacked layer by layer to form a metal deposition forming part. The invention further discloses a metal deposition forming device based on the ultra-high frequency induction heating technology. The metal deposition forming device based on the ultra-high frequency induction heating technology comprises an ultra-high frequency induction heating power supply, an induction coil, a wire feeding device, a metal wire material, a moving sliding block, a deposition formingpiece, a base plate, a moving platform, a guide rail, a protective atmosphere box, a protective gas cylinder, a cooler and a control system. By adopting the metal deposition forming method and devicebased on the ultra-high frequency induction heating technology, metal parts with complex structures can be rapidly formed, the heat energy conversion rate of equipment is high, the cost is low, the cost of the additive manufacturing technology can be greatly reduced, and the large-scale popularization of the additive manufacturing technology in the industrial field is facilitated.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for calculating moisture of raw coal in medium-speed coal mill online

ActiveCN110568018AReasonable control of outlet temperatureRealize online accurate calculationMolecular entity identificationMaterial moisture contentCalculation errorProcess engineering
The invention discloses a method for calculating the moisture of raw coals in a medium-speed coal mill online. The method comprises the steps of calculating the moisture of pulverized coals, calculating sealing air flow, calculating a pebble coal amount, calculating a heat preservation coefficient of the medium-speed coal mill, calculating heat released by primary hot air, calculating heat absorbed by the raw coals and sealing air, calculating heat taken away by pebble coals, plugging each data into a heat balance equation, setting a contrast test and verifying the moisture of the raw coals, and replacing a coal type and repeating the contrast test until a stable parameter value is obtained. The invention discloses the method for calculating moisture of the raw coals in the medium-speed coal mill online. A ground product of the medium-speed coal mill is sampled and tested, the moisture of the raw coals is calculated through a heat balance equation, multiple sets of contrast test verification are set, a calculation error of the raw coal moisture is reduced, the accurate judgment on the coal type is facilitated to reasonably control the outlet temperature of the coal mill, boiler operation parameters are adjusted to optimal values, and therefore the heat energy conversion rate of the raw coals is improved.
Owner:广东红海湾发电有限公司 +1

High-efficient, energy-saving and environment-friendly thermal power generating unit

The invention discloses a high-efficient, energy-saving and environment-friendly thermal power generating unit and relates to the field of the thermal power generating units which can burn solid, liquid or gas fuel, convert chemical energy of fuel into thermal energy, further convert the thermal energy into pressure potential energy of water vapor, further convert the pressure potential energy into mechanical energy of a steam turbine, and further convert the mechanical energy into electrical energy of a power generator; such as a coal-fired thermal power generating unit, a fuel-fired thermal power generating unit, a gas-fired thermal power generating unit and the like. Pure oxygen (or pure liquid oxygen) which is separated from the air through an air separation device is directly supplied into a burning chamber of the thermal power generating unit for replacing the original air in an excessive manner, thereby leading the fuel to be fully and completely burned, and leading the instantaneous effective burning rate of the fuel to achieve the highest limit value. The high-efficient, energy-saving and environment-friendly thermal power generating unit can save energy from three aspects: 1) the thermal power generating unit can lead the fuel to be fully and completed burned, thereby saving the energy; 2) the thermal power generating unit can reduce the exhaust emission by 79% and reduce the heat taken away by exhaust by 79%, thereby saving the energy; and 3) the thermal power generating unit can reduce nitrogen in a burning resistant agent by 79% and greatly reduce nitrogen oxides in the exhaust, thereby greatly reducing the loss of the thermal energy of the exhaust and further improving the thermal-power conversion rate. Therefore, the thermal power generating unit can improve the burning efficiency of the thermal power generating unit, save the energy, reduce the emission and reduce the consumption.
Owner:赵军政

Solar thermal and thermal power plant coupled power generation and thermal energy storage combined system and implementation method

The invention discloses a solar heat and thermal power plant coupling power generation and heat storage energy combination system and a realization method. The combination system comprises a thermoelectric production module, a thermoelectric heating module, a solar heat module and a heat energy storage module. The solar heat module heats condensated water of the thermoelectric production module to participate in power generation in non heating seasons, so that the coal consumption of the thermoelectric production module is reduced, and the emission is reduced; and in heating seasons, the heat energy storage module and the thermoelectric heating module are coupled to directly supply heat to a heat user pipe network, so that the energy form conversion link is reduced, and the utilization rate of solar energy is increased. The heat energy storage device needed by the solar heat module is shared with the heat energy storage device needed by low-trough electric peak adjustment of the thermoelectric production module, and is lower in unit investment compared with single thermoelectric production module using the low-trough electric peak heat energy storage device; the heat utilization stability of solar energy is enhanced; and meanwhile, the flexibility of the thermoelectric heating module and the peak adjusting capacity of the thermoelectric production module are greatly improved.
Owner:DATANG LUOYANG CO GENERATION POWER

A full heat recovery integrated gas heat pump heating unit and its application

The invention belongs to the field of gas-driven air source heat pump heat supply, and in particular relates to a full heat recovery type integrated gas heat pump heat supply unit and its application. Including: internal combustion engine, transmission coupling, compressor, condenser, evaporator, flue gas waste heat recovery device, flue gas and air mixing chamber, etc.; the internal combustion engine, transmission coupling, compressor, and condenser are connected in sequence, and The evaporator is connected back to the compressor; the flue gas waste heat recovery device is arranged on the flue gas pipeline of the internal combustion engine, and the flue gas and air mixing chamber communicates with the evaporator; the heating water pipeline is divided into two paths, and the first path is sequentially connected with the condenser 1. Heat exchange is performed between the flue gas waste heat recovery devices, and after heat exchange between the second road and the internal combustion engine, it merges with the first road to supply high-temperature water to the user. The present invention abandons the limitation of gas-fired heat pump research in pursuit of comprehensive energy efficiency ratio of multi-purpose and multi-working conditions, no longer considers summer refrigeration performance coefficient and cold-heat conversion, and successfully enables the existing GHP technology to be used in the heating system with radiator as the end.
Owner:SHANDONG FOOD & FERMENT IND RES & DESIGN INST

Pressurization and condensation thermal energy power system utilizing thermal drained water of nuclear power station

The invention discloses a pressurization and condensation thermal energy power system utilizing thermal drained water of a nuclear power station. The pressurization and condensation thermal energy power system comprises a heat collecting device, a gasifying device, a turbine, a condensing device and a one-way hydraulic pump, wherein the heat collecting device, the gasifying device, the turbine, the condensing device and the one-way hydraulic pump circularly communicate in sequence through a circulating pipeline. Circulating working media are contained in the circulating pipeline. The heat collecting device and the gasifying device are mounted in a thermal drained water channel of the nuclear power station. The condensing device is mounted in a low-temperature deep-water zone and comprises a condensing pipe, a cooling fan and a pressurization mechanism, wherein the pressurization mechanism is mounted at the middle end of the condensing pipe and comprises a pressurization turbine and a turbine pressure regulator, and the turbine pressure regulator is connected with the pressurization turbine in a controlling mode. The pressurization and condensation thermal energy power system utilizing thermal drained water of the nuclear power station has a high condensing rate and can reduce condensation energy discharge and improve thermal energy conversion efficiency, operation is stable, and power is adjustable.
Owner:郭远军

A metal deposition forming method and device based on ultra-high frequency induction heating

The invention discloses a metal deposition forming method based on ultra-high-frequency induction heating technology, which uses an ultra-high-frequency induction heating power supply to generate a high-frequency alternating magnetic field near an induction coil, and sends a metal wire into the center of the induction coil, and the metal wire Under the action of an alternating magnetic field, an induced eddy current is generated inside the material, and the metal wire is melted by the heat of the eddy current, and piled up layer by layer to form a metal deposition molding. The invention also discloses a metal deposition forming device based on ultra-high-frequency induction heating technology, including an ultra-high-frequency induction heating power supply, an induction coil, a wire feeding device, a wire material, a moving slider, a deposition forming part, a substrate, a moving Platform, guide rail, protective atmosphere box, protective gas cylinder, cooling machine, control system. By adopting the method and device of the present invention, metal parts with complex structures can be rapidly formed, the equipment has high thermal energy conversion rate and low cost, and can greatly reduce the cost of additive manufacturing technology, which is beneficial to the large-scale promotion of additive manufacturing technology in the industrial field .
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Solar table lamp

A solar table lamp comprises a lampholder, a supporting rod, a lamp cap and a turnover screen. The lampholder is a rectangular lampholder, and the supporting rod is composed of a left supporting rod body and a right supporting rod body and arranged at the rear right end of the top surface of the lampholder. A video and audio playing screen is arranged at the left end of the top surface of the lampholder, a calculator is arranged at the rear side of the right end of the top surface of the lampholder, and a lighting lamp switch and a video and audio playing screen switch are arranged at the front side of the right end of the top surface of the lampholder. The front surface of the lampholder is provided with a storage battery, a video and audio playing screen USB interface and three USB mobile phone charging interfaces. The turnover screen is connected to the rear left end of the top surface of the lampholder through a rotating shaft and can be overturned forwards to be buckled on the lampholder. The turnover screen is provided with a time display module, a calendar module and a temperature display module. A charging wire and a plug are arranged at the rear end of the lampholder. The solar table lamp has the advantages that energy is saved, the environment is protected, the functions are abundant, practicability is high, and the appearance is fashionable.
Owner:HARBIN JINDU SOLAR ENERGY TECH

A high temperature heat transfer oil thermal energy conversion system

The invention provides a high temperature heat transfer oil thermal energy conversion system comprising a heat transfer oil return line, a heat transfer oil output line, a cooling water output line, acooling water return line, a cooling water output pipe branch, a cooling water return pipe branch, a cold heat transfer oil output line, a cold heat transfer oil return line, an expanded heat transfer oil output line, an expanded heat transfer oil return line, a heating system, a heat exchanger, a three-way proportional valve, an oil storage tank, an expansion oil tank, a central controller, a cooling water tower, a solenoid valve, a filter, a pressure sensor, a temperature sensor, a flow sensor and an overflow pipe. The heat exchanger includes a first heat exchanger, a second heat exchangerand a third heat exchanger. According to the high temperature heat transfer oil thermal energy conversion system, through a technology of cooling low temperature oil by cold water and then cooling high temperature oil by the low temperature oil, the technical problem of how to cool 400 DEG C low temperature heat transfer oil is solved, the flow of the high temperature oil and the low temperature oil is controlled through the three-way proportional valve, and the temperature precision at the high temperature reaches + / -1 DEG C.
Owner:珠海国能复合材料科技有限公司

On-line Calculation Method of Raw Coal Moisture in Medium Speed ​​Coal Mill

ActiveCN110568018BReasonable control of outlet temperatureRealize online accurate calculationMolecular entity identificationMaterial moisture contentProcess engineeringHot blast
The invention discloses an online method for calculating the moisture content of raw coal in a medium-speed coal mill, which includes calculating the moisture content of coal powder; calculating the sealing air flow rate; calculating the amount of pebble coal; calculating the thermal insulation coefficient of the medium-speed coal mill; Calculate the heat absorbed by the raw coal and the sealed air; Calculate the heat taken away by the pebble coal; Substitute each data into the heat balance equation; Set up a comparison test to check the moisture content of the raw coal; Change the coal type and repeat the comparison test until you get stable parameter values. The method for online calculation of the raw coal moisture in the medium-speed coal mill is to sample and test the grinding product of the medium-speed coal mill, calculate the moisture of the raw coal through the heat balance equation, and set up multiple comparison tests to verify, which reduces the calculation error of the raw coal moisture. It is beneficial to make an accurate judgment on the coal type, to reasonably control the outlet temperature of the coal mill, and adjust the boiler operating parameters to the optimal value, thereby improving the thermal energy conversion rate of the raw coal.
Owner:广东红海湾发电有限公司 +1
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