431 results about "Thermal pollution" patented technology

An equipment for recovering and utilizing the heat energy generated by burning yellow phosphorus and a system for preparing phosphoric acid by the hot method are disclosed. It is composed of steam manifold and burning tower with heat energy recovering function. The burning tower consists of ring-shaped membrane heat exchanger with fins, heat-insulaitng enclosed casing, P2O5 gas outlet tube, connecting tube of phosphorus sprayer, etc.. Its advantages include low consumption of coal, water and energy, low cost and reduced environmental pollution.

The invention relates to the field of heating ventilation air conditioners, in particular to an improved air treatment method and a fresh air conditioner device. The invention improves the problems of traditional fresh air treatment and air conditioners and particularly emphasizes that a plate-type air-air heat exchanger and indirect water evaporative cooling are used for recycling energy of sensible heat and latent heat in air exhaust in the fresh air treatment process of damp and hot regions in summer and condensed water is directly evaporated on an evaporator to improve the working condition of a compressor. Under the condition of quantificationally supplying outdoor fresh air, the energy efficiency ratio of the fresh air conditioner is increased, the thermal pollution, damp pollution and noise pollution of the fresh air conditioner to environments are reduced, the indoor air quality is improved, and meanwhile, the fresh air conditioner provides the manufacture, installation and using convenience for a local region all-air central air conditioner. The fresh air conditioner provided by the invention and a design and manufacture method of the fresh air conditioner are applicable throughout the year in various regions, particularly in the damp and hot regions; and the fresh air system provides controlled, comfortable and healthy air environments for indoor activity space of people and air conditioner environments for technology for processing, storage and the like.

The invention discloses a method for generating by graded use of cold energy of liquefied natural gas, which comprises two parts of natural gas medium Rankine cycle and cold medium Rankine cycle, and is characterized in that vaporized natural gas and another refrigerant are taken as a generating working medium, the pressure of the natural gas medium and the refrigerant medium can be controlled to realize the multiple grades heat exchange with LNG, on one hand, a problem of large available energy loss during a process that the refrigerant recovers the LNG cold energy while Rankine cycle generating can be solved (compared with a conventional method, the method provided by the invention can increase the Rankine cycle efficiency by 60-80% through the usage of LNG cold energy generating), on the other hand, the pressurized cold energy carried by the liquefied refrigerant in the Rankine cycle through system integration can be reused, the utilization efficiency of the cold energy can be enhanced; simultaneously, the heat medium water is taken as a medium, a combustion gas-steam combined power plant near a receiving station is used for generating and the heat medium water is discharged to flue gas waste heat of atmosphere as a low-temperature heat source of cold energy generating, the generating efficiency of Rankine cycle can be enhanced, the waste heat utilization can not generate unfavorable influence on the generating efficiency of the combustion gas power plant, and the thermal pollution of flue gas waste heat on environment can be reduced.

The invention relates to a mixing humidity-removal air conditioner. It belongs to refrigeration and air conditioner technology field. The air conditioner includes desiccant humidity-removal subsystem, indirect evaporation refrigeration device and steam condensation refrigeration subsystem. Reel of desiccant humidity-removal subsystem is separated humidity-removal zone and regeneration zone by insulation heat preservation board. Exit of humidity-removal connects with fan through air conduit. Entry of regeneration connects with regeneration heater through air conduit. Exit of regeneration connects with regeneration wind fan. Two ends of sensible heat exchanger respectively connect with fan and direct evaporation condensation device. Two ends of air condition compressor of evaporation condensation subsystem respectively connect with evaporator and condensator. The other end of condensator connects with throttle device. The other end of throttle device connects with evaporator to form a loop. Adopting the invention, deep dry and evaporation condensation are reduced; evaporator's size is reduced; energy consumption and noise are reduced and heat pollution is lightened for fully using waste heat produced by system.

The invention relates to an immersion type liquid cooling and circulating air cooling combined server cabinet heat dissipation system, which comprises a cabinet body, a server module, a heat exchangermodule, a static pressure box module, a liquid pipeline system and a temperature control system. Liquid circulating working medium is adopted to cool a server processor, and gas circulating working medium (air ) is adopted to cool other heating elements. The heat exchanger module is arranged at the bottom of the cabinet, and comprises a first-stage heat exchanger and a second-stage heat exchangerand cools the liquid circulating working medium and the air respectively with low-temperature refrigerant water serving as a cold source. A static pressure box and a windshield form a closed air flowchannel, so that the thermal pollution to the external environment of the cabinet is reduced. According to the invention, independent cooling is carried out on different heating density areas of theserver. Sealing immersion type liquid cooling is adopted for high heating areas, and circulating air is adopted for cooling low heating areas. The heat dissipation efficiency of the system is effectively improved, the generation of local hot spots is inhibited, and the energy consumption of a refrigeration system is reduced.

The invention discloses a thermal power generation system with the function of exhaust steam recovery, which belongs to the technical field of thermal power generation. The thermal power generation system comprises a boiler, a steam turbine, a generator, an exhaust-steam hot well, a closed pressure condensation tank, a centrifugal vapor compression machine and a membrane steam-water mix heater, wherein the boiler, the steam turbine and the generator are sequentially connected, and an exhaust steam outlet of the steam turbine is connected with the exhaust-steam hot well in which a water-spray cooling device is arranged; the condensed water discharged from the exhaust-steam hot well after sequentially passing through a hot-well condensate pump, the closed pressure condensation tank, a main condensate pump, the membrane steam-water mix heater, a water booster pump, a deaerator and a feed pump is fed into the boiler; and the exhaust steam discharged from the exhaust-steam hot well is divided into two parts after being pressurized by the centrifugal vapor compression machine, one part of exhaust steam is used for supplying heats for the outside, and the other part of exhaust steam is connected to the membrane steam-water mix heater to heat the condensed water. The thermal power generation system disclosed by the invention can recover huge amounts of thermal energies, and also can guarantee and stabilize the vacuum degree required by the steam turbine; and meanwhile, the problem of heat pollution caused by the exhaust steam of a cooling tower can be solved by using the thermal power generation system, and the water resource can be saved.

The invention discloses a deep coal bed gas and heat co-extraction method. The method comprises the steps that 1, a first vertical drilling well is constructed, a heat-preserving casing pipe is adopted for carrying out gas sealing and heat isolating protection for a well hole; 2, construction of a layering horizontal well is carried out according to the thickness of a coal bed, the layering numberK is determined according to the coal bed real thickness M and the gas drainage radius R, and K is equal to M/2R; 3, a second vertical drilling well is constructed; 4, circumferential dispersing holes of the horizontal well are constructed, and then first extraction of gas is carried out; 5, hydraulic fracturing is carried out on all the drilled holes, a three-dimensional fracture mesh is formed,and then second extraction of the gas is carried out; 6, the first vertical drilling well serves as a water injecting well, the second vertical drilling well serves as a steam output well, the wateris injected into the deep coal bed, the principle of heat transfer is utilized for transferring geothermal energy into the water steam, and the water steam is extracted and utilized. According to themethod, gas extraction and geothermal energy exploitation can be carried out for the deep coal bed which is 1500-3000 meters, the geothermal extraction efficiency is improved, energy is saved, emission is reduced, and the geological environment problems of water and soil pollution, thermal pollution and the like are prevented.

The invention discloses a combination system for efficiently using waste heat in the iron mine sintering cooling process. The combination system comprises a sintering machine and a circular cooling machine, wherein the sintering machine and the circular cooling machine are longitudinally arranged from head to tail in a fall mode. A waste heat recycling device is arranged in a flue of the sintering machine, hot smoke recycling covers at the top end of the circular cooling machine are connected with a dual-pressure waste heat boiler, the dual-pressure waste heat boiler and the waste heat recycling device are connected to a steam compensation steam-type turbine, the steam compensation steam-type turbine drives an electric generator to generate electricity, and meanwhile a steam standby steam source is connected to a steam inlet of the steam compensation steam-type turbine. According to the combination system, the electric generating technology is combined with the iron mine sintering cooling process, and the generating capacity can reach 25kwh/t-30kwh/t and exceeds the inland existing sintering waste heat electric generating level of 12kwh/t-20kwh/t; the hot air circulation and hot air ignition technology is adopted, the temperature of recycled smoke of the circular cooling machine can be raised by 50 DEG C to 100 DEG C, fuel gas for ignition can be reduced by 5%-10%, and heat pollution and dust pollution to the surrounding air are reduced.

The invention discloses a renewable desulfurization process method and the application thereof. The process flow comprises water washing and cooling of desulfurized flue gas, absorption and desorption of SO2 and heat supply of the desorption process. The process flow is characterized in that at least part of the heat energy required by the desorption process is provided by physical sensible heat of mixed gas discharged by a desorber and latent heat of vaporization of water vapor in the mixed gas, and is used for solving the problems of high energy and water consumption in the desulphurization process. The invention also comprises the application of the renewable desulphurization process flow, for example, the process flow can be used in flue gas desulfurization in a sintering system of a steel plant, the flue gas desulfurization of iron-making blast furnace gas, etc. The process method and the application have the main advantages of saving energy and water, and reducing heat pollution to environment at the same time.

The invention relates to a micro power consumption elevator, which comprises a motor, a frequency converter and an encoder. The micro power consumption elevator is characterized by further comprising a super-capacitor component, wherein an positive electrode of the super-capacitor component is connected with a positive electrode input end of the frequency converter; an negative electrode of the super-capacitor component is connected with a positive electrode input end of the frequency converter; in a motor power generation state, the super-capacitor component stores the electric energy generated by the motor, and in a motor electro-motion state, the super-capacitor component supplies power to the motor for running; and an energy supplement device charges the super-capacitor component when the working voltage of the super-capacitor component is lower than a designed voltage lower limit value. The micro power consumption elevator has the advantages that the super-capacitor component is used as a main power supply carrier for continuously supplying power to the elevator and the super-capacitor component not only serves as an energy storage element but also serves as a battery and makes full use of the electric energy generated in the running process of the elevator so that a brake unit (or a brake resistor) is unnecessary to be arranged in the elevator, an inverter is also unnecessary to be arranged in the elevator, not only the equipment cost is saved, but also thermal pollutions and harmonic noise pollutions are avoided, and the micro power consumption elevator is more energy-saving and environment-friendly.

The invention discloses an energy-saving air-conditioning desiccant system, which comprises a full heat exchanger, a lithium chloride runner and a compression subsystem; the compression subsystem is composed of a low-temperature loop heat pump system and a high-temperature loop heat pump system by serial connection; the outdoor fresh air undergoes the dehumidification after the temperature decrease by the full heat exchanger and then is mixed with the other part of the indoor return air, which is further sent to the interior of a room after the temperature decrease by an evaporator; another outdoor fresh air undergoes the heating by a condenser of the high-temperature loop heat pump system, after that, one line is exhausted to the outdoor atmosphere after the temperature decrease by the evaporator of the high-temperature loop heat pump system; and the other line is taken as a renewable heat source of an absorbent of the lithium chloride runner after the re-heating by the condenser of the high-temperature loop heat pump system. The condensation heat of the low-temperature loop is taken as the heat source of the high-temperature loop heat pump. The condensation heat of the high-temperature loop heat pump is taken as the renewable heat source which is needed by a dehumidification module. The energies of the heat sources and the heat sink can be fully utilized, thus simplifying the structure of the system, simplifying the control and reducing the heat pollution.

The invention provides an air conditioning system which comprises an outdoor heat exchanger (5), an indoor first heat exchanger (14) and indoor second heat exchangers (13), wherein the indoor second heat exchangers (13) are arranged at the two ends of the outdoor heat exchanger (5) through first parallel branches in parallel, and meanwhile the indoor second heat exchangers (13) are also arranged at the two ends of the indoor first heat exchanger (14) through second parallel branches in parallel. The air conditioning system further comprises a first control valve system for controlling the first parallel branches, and a second control valve system for controlling the second parallel branches is arranged on the second parallel branches. According to the air conditioning system, the heat exchangers are reasonably arranged, and heat of condensation is utilized to replace electrical heating, so that the waste of thermal resources and the possible thermal pollution are reduced, the cost of electrical heating is reduced, and the potential safety hazard of possible dry heating caused by electrical heating operation is avoided; meanwhile, the heat exchange area is increased, and the sensible heat ratio of the air conditioning system during operation is increased. The invention further relates to a control method for the air conditioning system.

The invention discloses a system for comprehensive utilization of oil shale destructive distillation and semicoke gasification, which comprises a destructive distillation furnace, an oil shale bin, an oil storage tank, an oil-gas separator, a gas heater, a gasification fuel bin, a combustible gas tank, a heater, a gasification furnace and a conveyer device. According to the invention, by using a process for comprehensive utilization of oil shale destructive distillation and semicoke gasification by using the system, semicoke generated by destructive distillation and powdered oil shale are subjected to gasification reaction to generate combustible gas, a part of combustible gas can be used as a fuel to be introduced into the gas heater to heat a heat carrier gas used in the destructive distillation furnace, high-temperature solid residues generated in the gasification furnace are discharged into a heat exchanger to heat cold water into hot water or vapor. According to the invention, the semicoke generated by oil shale destructive distillation is gasified to be recycled, and thus the addition benefits in an oil shale destructive distillation process is increased, heat pollution and chemical pollution of shale residues are reduced, and energy source utilization rate is improved.

The invention relates to a single-shaft heating steam turbine unit, in particular to a single-shaft heating steam turbine unit capable of running as a steam-extraction turbine unit, a back-pressure turbine unit and a pure condensing turbine unit, which solves the problems that steam-extraction heating amount is small and atmospheric heat pollution is increased when a steam-extraction condensing unit is used as a heating unit and the problem of poor economic benefit because a back-pressure turbine cannot run under the condition of small or no heating amount when a back-pressure turbine unit is used as the heating unit. The invention provides two schemes that: first, a steam-extraction condensing turbine is provided with a high pressure cylinder and an independent low pressure cylinder, wherein the high pressure cylinder and the independent low pressure cylinder are connected through an SSS clutch; and the exhaust stream end of the high pressure cylinder is provided with a heating extraction port of the high pressure cylinder; and second, the steam-extraction condensing turbine is provided with an independent low pressure cylinder, a high pressure cylinder and an intermediate pressure cylinder, wherein the intermediate pressure cylinder and the independent low pressure cylinder are connected through an SSS clutch; and the exhaust stream end of the intermediate pressure cylinder is provided with a heating extraction port of the intermediate pressure cylinder. The single-shaft heating steam turbine unit runs flexibly, increases the heating amount by over 20 percent, and is suitable for the heating units of all power.

The invention relates to an intelligent closed type smoke waste heat recycling type gas electromagnetic compound stove comprising a closed combustion chamber, an air inlet channel, a gas inlet channel, a smoke and sucked air heat exchange structure body, a smoke discharge channel, temperature and pressure sensors, a vibration recognition probe, an electromagnetic auxiliary heating system, a communication module, a gas electromagnetic compound intelligent control system and the like, wherein the closed combustion chamber is composed of a working tabletop, a burner outer cavity, a burner inner cavity and an infrared combustion panel. Air coming from the air inlet channel is preheated through the heat exchange structure body after being mixed with gas and enters the combustion panel to be combusted, smoke is discharged after waste heat is brought away through the heat exchange structure body, the electromagnetic auxiliary heating system can provide electromagnetic heating at the same time, the sensors are arranged at key state control points of a cooker and a burner and can adjust the work state of the burner in real time after accessing to the intelligent control system, and the system is networked through the communication module. The intelligent closed type smoke waste heat recycling type gas electromagnetic compound stove has the beneficial effects that the combustion heat utilization rate is high, the tabletop is clean and tidy, no waste gas and waste heat pollution is caused, the states of the burner and the cooker are intelligently recognized and automatically controlled, and the intelligent closed type smoke waste heat recycling type gas electromagnetic compound stove can be warned and controlled through a network.

The invention provides a hot-water, air-conditioning and construction integrated system which indirectly and directly utilizes solar energy. The system comprises a solar heat collection unit [1], a fan coil [2], a coil throttle valve [3], a cooling electromagnetic valve [4], a cooling tower [5], a chilled water output electromagnetic valve [6], a chilled water output pump [7], a chilled water reservoir [8], a chilled water input pump [9], a chilled water input electromagnetic valve [10], a chilled water input throttle valve [11], a water-cooled cold water chiller [12], a hot-water throttle valve [13], a hot water pump [14], a hot-water reservoir [15], a spray nozzle [16], a unit pump [17], a unit throttle valve [18] and the like. The system realizes integration of solar hot-water, air-conditioning and construction, and supplies all-weather hot water and chilled water (summer). According to solar altitude, weather conditions and user requirements, the best scheme can be selected from a plurality of configurations to achieve substantially energy conservation: in summer, combined supply of hot-water and air-conditioning can be realized to avoid heat pollution and cold consumption, refrigeration and cold storage can be implemented at the lowest temperature so as to improve efficiency, perform peak load shifting, save electricity fee and relieve power supply shortage; and in winter, combined supply of hot-water and warming can be realized. By adopting a water-circulation heat-and-coldness-storage heat-and-coldness-supply system, the heat collecting area and the heat exchange cycle are reduced, and cost is reduced; and the integrated system of the invention has high solar heat conversion efficiency, high air heat converting energy conversion, and primary investment, operation cost and electricity conservation which are superior to those of the conventional solar hot-water air-conditioning system with the same volume.

The invention discloses a desalinating technique of seawater through water source heat pump under negative pressure condition, wherein the system is composed of seawater source heat pump, jet vacuum pump, generator and pump; a lower pressure condition is formed in the generator to evaporate the seawater with temperature elevated; the steam is leaded into next generator acted by jet vacuum pump to release potential heat and evaporate seawater, which realizes the utilization effectively; the steam condensate is extracted from the generator to product fresh water. The invention improves the energy utilizing efficiency as heat supplying equipment in winter, which releases the heat pollution of circulating condensate of electric factory due to low temperature of outlet water of seawater source heat pump evaporator and system generator.

A ferroalloy mine heat furnace system with a waste heat power generation system comprises a motor control system, an electrode slipping device, an electrode positioning system, a charging system, iron tapping equipment, a protection facility, an electrode water cooling system, a waste heat recovery power generation system and a dust collecting system, wherein the waste heat recovery power generation system recovers the high-temperature flue gas generated during the production process of the ferroalloy mine heat furnace system, generates steam through a waste heat boiler and drives a supporting steam turbine generator set to generate electricity. Through additional arrangement of waste heat recovery power generation system, the ferroalloy mine heat furnace system provided by the invention not only recovers flue gas and avoids secondary energy waste, but also reduces the thermal pollution of high-temperature flue gas to the working environment of workers, and is the novel ferroalloy mine heat furnace system which meets the development mode of circular economy.

A boiler fully utilizing smoke gas waste heat comprises a boiler body, an air blower, a smoke gas chamber and a preheating water tank, wherein the air blower is arranged at the right lower end of the boiler body, the smoke gas chamber is arranged at the top end of the boiler body, and the smoke gas chamber is connected with the preheating water tank through a gas delivery pipe; an inner shell, a middle shell, an outer shell and a thermal insulating and heat preserving shell are formed in the boiler body; the inner part of the inner shell is a combustion chamber, the inner shell is arranged in the center in the boiler body, a heating water tank, a grate and an ash chamber are arranged in the inner shell, the grate is arranged at the lower end in the inner shell, the lower end of the grate is the ash chamber, and the heating water tank is arranged at the upper end in the inner shell; an air preheating chamber is formed between the middle shell and the inner shell; a smoke circulating chamber is formed between the outer shell and the middle shell; and the thermal insulating and heat preserving shell is arranged at the outer end of the outer shell. The boiler can fully utilize waste heat in smoke gas to preheat to-be-heated water and preheat combustion air which will enter the combustion chamber, so that heat energy is saved, and thermal pollution is reduced.

The invention discloses a wet-process rare earth smelting high ammonia-nitrogen wastewater resource utilization method which comprises the following steps: step one, pretreating high ammonia-nitrogen containing wastewater through alkalization, sedimentation and filtration; step two, introducing the pretreated wastewater into a wastewater preheater, and preheating; step three, introducing the preheated wastewater into an ammonia distillation tower, carrying out ammonia distillation, and forming strong aqua ammonia with the concentration of 13%-20%; and when the ammonia nitrogen concentration of tower bottom wastewater is not more than 100 ppm, discharging out of the ammonia distillation tower, and introducing into a barrel of the wastewater preheater to be used as a thermal fluid; and step four, carrying out deep treatment on the wastewater after heat exchange, and when the ammonia nitrogen concentration is not more than 10 ppm, discharging the wastewater outwards. The embodiment of the invention also discloses a wet-process rare earth smelting high ammonia-nitrogen wastewater resource utilization device. With adopting of the method and the device, the ammonia nitrogen wastewater with different concentrations is subjected to two-stage treatment of the ammonia distillation method and the depth treatment method, the resource utilization rate of the high ammonia-nitrogen wastewater reaches more than 95%, the processing energy consumption is reduced, the equipment scaling time is prolonged, and thermal pollutions of wastewater discharging are decreased.

The invention discloses an energy-saving type material drying system using hot air as a working medium. Waste heat directly discharged from the drying system under normal conditions, especially the waste heat carried by dried materials is fully utilized by comprehensively using a heat exchanging device. The heat is utilized for heating various materials needing to enter the system, and especially thermal energy carried by the dried materials is utilized for heating the materials which are newly conveyed into the system to be dried. Power consumption can be greatly reduced while the system can keep drying performance through the optimization of the arrangement of a draught fan and the direction that hot wind passes the materials, the power of the heat discharged to the environment is naturally reduced, namely, thermal pollution to the environment is reduced, and accordingly good economic benefits and environmental benefits are obtained.