1598 results about "Lithium bromide" patented technology

The invention discloses a dehumidizer for air dehumidification. The dehumidizer provided by the invention is an ionic liquid solution formed by dissolving an ionic liquid in water, wherein the ionic liquid is formed by organic positive ions and inorganic negative ions, and the melting point of the ionic liquid is close to or is lower than room temperature. In addition, the invention further discloses a method and a device for air dehumidification by the adoption of the above dehumidizer. In comparison with traditional salting liquids (lithium bromide, lithium chloride and calcium chloride aqueous solutions and the like), the dehumidizer provided by the invention has the following advantages: 1) the applied ionic liquid solution is in the liquid state at normal temperature, is intermiscible with water, and will not be crystallized during operation, so as to guarantee the reliable operation of a system; 2) the applied ionic liquid solution has similar or lower water vapor pressure than a traditional dehumidifying salting liquid so as to raise the dehumidifying efficiency; 3) the applied ionic liquid solution will not corrode metal equipment such as steel equipment such that the equipment has low cost and long service life; 4) the dehumidizer has nonvolatility so as to reduce the environmental pollution.

The invention relates to a low-temperature concrete early strength agent, which belongs to cement additives. The early strength agent consists of sodium metaaluminate, sodium silicate, sodium sulfate, sodium carbonate, lithium carbonate, lithium bromide, alkali metal chlorides, alkali metal hydroxides, zinc fluosilicate, magnesium fluosilicate, sodium fluosilicate, calcium fluoride, triisopropanolamine, a filtrate reducer, beta-naphthalene formaldehyde sulfonate polycondensate, ultrafine powder SiO2, ultrafine powder Al2O3, ultrafine powder Fe2O3, ultrafine powder CaO and ultrafine powder MgO. The early strength agent is mainly applied to winter concrete construction or low-temperature environmental emergency projects; when the early strength agent is used, the composition mixture is added into concrete according to 2 to 5 percent of the total weight of cement, water is added and then stirring is performed; and a cement block with the strength of 13.5MPa can be formed in a low-temperature environment at the ambient temperature of approximately 4 DEG C within 12 hours, a cement block with the strength of 18.5MPa can be formed within 24 hours and a cement block with the high strength of 30MPa can be formed within three days.

The present invention discloses one kind of refrigerating method based on air expansion to absorb moisture and absorption of lithium bromide and corresponding refrigerating air conditioner set designed according to the said method. By means of the technology of inverse booster opened air expanding and moisture absorbing technology with high speed variable frequency motor for direct driving, three refrigerating courses, one heating course and two different air conditioning cold air heat exchanging courses are realized in one set resulting in greatly raised refrigerating efficiency. The set has air and water as refrigerating medium and thus is green. The present invention has the advantages of high speed, small volume, light weight, great flow rate, high refrigerating efficiency, convenient load regulation, no pollution, etc.

The cathodic protection system of a concrete structure (22) uses sacrificial anodes such as zinc, aluminum and alloys thereof embedded in mortar. A humectant is employed to impart high ionic conductivity to the mortar in which the anode is encapsulated. Lithium nitrate and lithium bromide and combinations thereof are preferred as the humectant. The anode (10) is surrounded by a compressive conductive matrix (12) incorporating a void volume between 15% and 50% to accommodate the sacrificial corrosion products of the anode. A void space of at least 5% of the total volume of the anode (12) may be provided opposite to the active face of the anode. Synthetic fibers such as polypropylene, polyethylene, cellulose, nylon and fiberglass have been found to be useful for forming the matrix. A tie wire is used to electrically connect the anode to the reinforcing bar.

The invention provides a multi-mode tower-type solar thermal power generating device. A special ceramic solar energy receiver is adopted, quicksand is used for replacing heat transferring and storing media such as heat-conducting oil and fused salt, and supercritical carbon diode Bretton thermal power generation can be achieved by means of sensible heat and high-temperature radiation carried by the quicksand. On the basis of innovating the fused salt heat storing technology, the power generating device complements the technologies of organic Rinkine thermal power generation, lithium bromide air-conditioning, biomass energy and the like, and a bold attempt is made in the aspects of reducing the cooling water and the cost, prolonging power generation hours and expanding the use range, the technological base is laid for replacing fossil energy power generation finally. The device belongs to the technical field of solar thermal power generation.

The invention discloses a hybrid energy supply system coupling a natural gas based distributed energy source system with a ground source heat pump. The hybrid type energy supply system comprises a gas turbine, a lithium bromide absorption unit, an exhaust heat boiler, a first water source heat pump unit, a second water source heat pump unit, a first heat exchanger, a second heat exchanger, a third heat exchanger, an absorption dehydrating device, an underground heat exchanger, a paralleling set, an ice storage device, a first heat storage water tank, a second heat storage water tank, a construction energy consumption monitoring and controlling device and a signal feedback control network. Exhaust heat of the distributed energy source system is utilized sufficiently, and efficiency of a total energy system is further improved. Two energy source technologies of fossil clean energy and renewable energy are comprehensively utilized to couple and integrate, and advantageous complementation of the two energy sources is realized. Compared with an existing hybrid energy supply system, the hybrid energy supply system has the advantages that energy utilization efficiency is greatly improved, huge environmental protection benefit can be created, and practical significance is great.

Provided are an ammonia and lithium bromide integrated absorption refrigeration device driven by heating medium water and a method. The device comprises an ammonia-water solution rectifying tower, an ammonia condenser, a liquid ammonia throttling valve, a liquid ammonia evaporator, a refrigerant ammonia absorber, an ammonia-water solution heat exchanger, an ammonia-water solution circulating pump, an ammonia-water solution reducing valve, a lithium bromide solution generator, a water vapor condenser, a water throttling valve, a water evaporator, a refrigerant water vapor absorber, a lithium bromide solution heat exchanger, a lithium bromide solution circulating pump and a lithium bromide solution reducing valve. An ammonia absorption refrigeration system and a lithium bromide absorption refrigeration system are integrated through heating medium water and chilled water energy flows. The process includes the steps that according to an energy gradient utilization principle, the heating medium water drives ammonia absorption refrigeration at first and then sequentially drives lithium bromide absorption refrigeration. Chilled water made through the lithium bromide absorption refrigeration system is used for cooling the generator (an ammonia-water solution rectifying overhead condenser) and the absorber of the ammonia absorption refrigeration system in a series level mode, and therefore the ammonia absorption refrigeration process is intensified.

The invention provides a sulfide solid electrolyte based on oxygen doping. The sulfide solid electrolyte is prepared from the chemical ingredients, in percentage by mass: 36-60% of lithium sulfide orlithium selenide, 18-48% of phosphorus pentasulfide or phosphorus selenide, 1-23% of metal oxide or specific nonmetallic oxide and 8-37% of lithium chloride, lithium bromide or lithium iodide. The preparation method of the sulfide solid electrolyte mainly comprises the steps that the raw materials are sufficiently blended and subjected to tabletting, then placed in a quartz tube to be burned and sealed, the product is placed in a muffle furnace and heated to be 400-600 DEG C at a slow heating rate, the optimal heating rate is 0.3 DEG C / minute, heat preservation is conducted for 12-48 hours, and then the product is cooled to reach the room temperature; and the product is ground to be powder, and the sulfide solid electrolyte based on oxygen doping is prepared. The sulfide solid electrolyteis easy to prepare and high in repeatability, the prepared solid electrolyte has the high ionic conductivity and good stability to the air and positive and negative electrodes.

The invention discloses a lithium bromide absorption-compression type series boosting refrigeration / heating pump system. A refrigerant steam outlet of a generator (1) is connected with a refrigerant steam inlet of a condenser (2); a liquid refrigerant outlet of the condenser (2) passes through a throttling element (3) and is connected with a liquid refrigerant inlet of an evaporator (4); a liquid refrigerant outlet of the evaporator (4) passes through a refrigerant circulation pump (5) and is connected with a sprayer I (44); a refrigerant steam outlet of the evaporator (4) passes through a compressor (6) and is connected with a refrigerant steam inlet of an absorber (7); a dilute solution outlet of the absorber (7) passes through a solution circulation pump (8) and a solution reheater (9) sequentially and is connected with a dilute solution inlet of the generator (1); and a condensed solution outlet of the generator (1) passes through the solution reheater (9) and is connected with a sprayer II (74). The lithium bromide absorption-compression type series boosting refrigeration / heating pump system has the characteristics of lower requirement on the temperature of a heat source, reduction in the compression ratio of the compressor and the like.

The invention relates to a method for preparing silk fibroin film, especially a method for using covalence decoration to prepare novel antibiosis silk fibroin film. The inventive method comprises that removing foreign materials of Na2CO3 solution smelted silk fibroin, dissolving in lithium bromide water solution, drying, mixing alcohol with water, immerging in phosphate buffer solution, immerging in EDC HCl / NHS solution, immerging and washing in phosphate buffer solution, drying. The invention can adjust the density of silk fibroin, the density of antibiosis peptide solution and process covalence decoration, to control the antibiosis function. The invention has the structure and functions of natural animal silk fibroin, with surface antibiosis activity, long service life and non drug tolerance.

The invention relates to a solution dehumidifying and automatic circulating system, and discloses an energy-saving temperature and moisture automatic adjusting air conditioning unit. The air conditioning unit comprises a heat pump system, and right and left solution circulating systems which are arranged symmetrically, wherein the heat pump system comprises a compressor system, a condensation heat exchanger and an evaporation heat exchanger; the right solution circulating system comprises a right lower solution tank, a right upper solution tank, a right filler module, a right shower pipe and a right blower; the right upper solution tank is connected with the condensation heat exchanger through a pipeline; and the condensation heat exchanger is connected with the right shower pipe through the pipeline. The energy-saving temperature and moisture automatic adjusting air conditioning unit of the invention realizes the automatic adjustment of the concentration of a solution through different kinds of potential energy of the solution in each solution tank, ensures the dryness and cleanness of air because the solution of lithium bromide has humidification and sterilization effects, and also can effectively utilize heat energy in the solution because the solution passing through a refrigerating system has certain heat energy.

The invention discloses a solar-powered waste water evaporation system. The energy source used by the system is mainly solar energy. Hot water generated by a solar heat collector pre-heats waste water; by means of a wet-carrying capacity of a gas, steam is carried after being contacted with pre-heated waste water in an evaporation chamber; the wet-carrying gas is condensed in a surface air cooler by cooling water generated by a solar-powered lithium bromide refrigerator, and the dehumidified gas further enters the evaporation chamber to carry wet circularly. The system disclosed by the invention needs not to consume steam, so that the system is remarkable in energy conservation. The system can realize low-temperature evaporation and can be widely applied to the industries of petrochemical engineering, foods, light industry, pharmacy, sewage treatment, sea water desalination and the like.

The hybrid aqua-ammonia and lithium bromide-water absorption chiller is an aqua-ammonia absorption refrigeration system integrated with a lithium bromide-water absorption refrigeration system. By integrating a solar-powered lithium bromide-water absorption refrigeration system into the aqua-ammonia absorption refrigeration system, evaporator temperatures below the freezing point of water may be generated at lower operating pressures and lower generator temperatures than in conventional aqua-ammonia absorption refrigeration systems.

The invention belongs to the technical field of lithium sulfur batteries, and concretely relates to a lithium sulfur battery new system. The new system comprises an electrolyte and a diaphragm matched with the electrolyte. The electrolyte is a lithium salt solution with the concentration of 0.1-3mol / L, and a lithium salt solute in the lithium salt solution is one or a mixture comprising two or more of lithium fluoride, lithium chloride, lithium bromide or lithium iodide; a solvent is one of or a mixture comprising two or more of N,N-dimethyl formamide, N,N-dimethyl acetamide, dimethyl sulfoxide, tetramethyl sulfone, tetrahydrofuran, N-methyl-2-pyrrolidone and acetonitrile; and the diaphragm is a micro-porous membrane with the aperture of 0.5-10nm or a dense membrane containing anions. The micro-porous diaphragm subjected to surface modification and hot pressing can be fully infiltrated in the micro-molecular lithium salt electrolyte and has an appropriate dimension to make electrolyte ions freely go through in order to inhibit or prevent the migration of polysulfide. The lithium salt has a low price, so the battery has the cost advantage.

The invention relates to a temperature and humidity independent control air-conditioning system based on the membrane distillation technology, which comprises a lithium bromide absorption refrigerating system, a lithium bromide solution dehumidifying system and an auxiliary connecting part, wherein the lithium bromide absorption refrigerating system is utilized to control the supply air temperature, and the lithium bromide solution dehumidifying system is utilized to control the supply air humidity; the solution analysis process in the lithium bromide absorption refrigerating system and the solution regeneration process in the lithium bromide solution dehumidifying system are subjected to centralized treatment in a membrane distillation component; a concentrated lithium bromide solution after treatment is divided into two parts, wherein one part is taken as an absorbent solution of an absorber in the absorption refrigerating system, and the other part is taken as a spraying solution in the solution dehumidifying system to perform dehumidification treatment on the air; simultaneously a low-temperature diluted lithium bromide solution treated by the dehumidifying system is taken as a cooling solution of the absorber in the absorption refrigerating system to recover energy, so that the efficiency of the system is improved and the energy of the system is saved.

PROBLEM TO BE SOLVED: To provide a positive electrode material for a nonaqueous electrolyte lithium ion battery, which can suppress a decomposition of an electrolyte even when moisture does not enter a cell and a battery is charged or discharged at high temperature.SOLUTION: The positive electrode material for a nonaqueous electrolyte lithium ion battery includes lithium-nickel oxide having a surface covered with an Li compound to be attached. The Li compound is at least one selected from the group consisting of lithium phosphate, an LiPON compound, an Li<SB POS="POST">2< / SB>O-B<SB POS="POST">2< / SB>O<SB POS="POST">3< / SB>compound, an Li<SB POS="POST">2< / SB>O-B<SB POS="POST">2< / SB>O<SB POS="POST">3< / SB>-LiI compound, an Li<SB POS="POST">2< / SB>S-SiS<SB POS="POST">2< / SB>compound, an Li<SB POS="POST">2< / SB>S-SiS<SB POS="POST">2< / SB>-Li<SB POS="POST">3< / SB>PO<SB POS="POST">4< / SB>compound, lithium hydroxide, lithium fluoride, lithium acetate, lithium acetylide ethylenediamine, lithium benzoate, lithium bromide, lithium carbonate, lithium nitrate, lithium oxalate, lithium pyruvate, lithium stearate, lithium tartrate and lithium sulfate.

An all-electric aircraft is an important development direction for the modern aircraft, and the invention aims at the larger cooling and heating electric charge due to the coexistence of energy resources, an environmental control and a thermal management system and provides an airborne combined cooling and heating system, wherein the system is applicable to the all electric aircraft and utilizes the residual heat generated by a proton exchange membrane fuel cell to drive a lithium bromide absorption-type residual heat air conditioner so as to realize refrigeration and heat supply, thus solving the key problems of restricting the further development of the all-electric aircraft technology such as insufficiently utilized power generation residual heat objectively existing in divided production and supply of the cooling and heating power at home and abroad, excessively high environmental control system energy consumption, excessively large charge of the thermal management system, and the like. Furthermore, the invention also specifically introduces the improvement on the traditional proton exchange membrane fuel cell and the lithium bromide absorption-type residual heat air conditioner, thus leading the two devices to meet the use requirement of the all-electric aircraft.

The invention relates to a solar air-conditioner comprising a U-shaped heat pipe collector, a lithium bromide absorption-type refrigerating machine, a heat storage water tank, a cold storage water tank, a circulation pump, a cooling tower, an air-cooled coil pipe, an auxiliary oil-fired boiler and an automatic control system. The lithium bromide absorption-type refrigerating machine comprises a high-pressure generator, a low-pressure generator, an evaporator, an absorber, a cooling tower, a cooled heat exchanger, a concentrator and a generator pump. Lithium bromide-water separators are respectively arranged in the high-pressure generator and the low-pressure generator. Surfactants are added in refrigerant solution. The solar air-conditioner does not need to consume lots of energy and has low requirement on heat energy, can utilize various low-grade heat energy besides the solar heat sources, and has good electricity saving and energy saving effects and high economic efficiency. The cold capacity regulating range is wide. Along with the change of external load, the unit can carry out stepless regulation on the cooling capacity within the range from 10% to 100%, and during low load regulation, the heat efficiency hardly falls and the properties are stable; therefore, the solar air-conditioner can better adapt to the requirement of variable load.

The invention discloses a method for independently controlling temperature and humidity of an automobile air conditioner. In the temperature control method, through a temperature control unit, a lithium-bromide absorption-type refrigerating device is operated by taking heat of tail gas of an automobile as a high temperature heat source, water in an aqueous solution of lithium-bromide is evaporated and the vapor enters a terminal heat exchanger to absorb heat in the environment to be condensed into liquid water, so that the environment is cooled, or is heated through condensing radiation afteradjustment; and in the humidity control method, through a humidity control unit, a lithium-bromide absorption-type heat pump device and a solid adsorption-type dehumidification device are jointly operated by taking heat of tail gas of the automobile as a high temperature heat source, and a condenser in the lithium-bromide absorption-type heat pump device dissipates heat to heat outside air, so that water in the air is evaporated, dry air is regenerated through moisture absorption of an adsorbent, and the environment is dehumidified. The heat of the tail gas of the automobile is fully utilized, the automobile tail gas exhaust temperature is reduced, and energy is saved by 30 percent effectively; and a system space is saved, the operating performance of the system is high, the manufacturingcost is low, the volume is small, the cost is low, and the invention has great economic and social benefits.

The invention discloses a multi-energy complementation combined type heat pump air conditioner system. The multifunctional complementation combined type heat pump air conditioner system is mainly composed of a high-temperature cold source 1, a heat pump unit 2, a water separating device 3, a water collecting device 4, a data machine room user 5, a cooling device 6, a common air conditioner user 7, a plate-type heat exchanger 8, a cold accumulation groove 9, a cold water primary pump 10, a circulating pump 11, a cooling water pump 12, a common air conditioner user side water pump 13 and a secondary pump 14, wherein a common water chilling unit, a heat pump unit, a steam type lithium bromide absorption unit, a hot water type lithium bromide absorption unit, an evaporative cooling air conditioner and the like can serve as the high-temperature cold source 1, a water-cooling air conditioner corresponding to an individual building / various data center machine tool plate-type heat exchangers corresponding to an area building can serve as the data machine room user 5, and a cooling tower, a hot source tower and the like can serve as the cooling device 6. In summer, the high-temperature cold source and the heat pump unit operate independently. In winter, the high-temperature cold source and the heat pump unit are combined to cool the data machine room, and the heat pump unit serves as a hot source of the common air conditioner user. In spring and autumn, free cooling can be achieved. By means of the cold accumulation groove, the principle of peak clipping and valley filling is adopted in the cooling capability, and energy saving is achieved to the maximum extent.

The invention discloses a distributed combined cooling heating and power supply system based on biomass gas. According to the distributed combined cooling heating and power supply system based on the biomass gas, a power generator is driven through power generated by a gas internal combustion engine to generate electricity, and high-temperature smoke generated by the gas internal combustion engine is introduced into a smoke hot water type lithium bromide absorption chiller-heater at the same time for refrigerating and heating. On one hand, domestic hot water is prepared by combining water cooling of the power generator and water cooling of a cylinder sleeve of the internal combustion engine, and the system can also serve as a supplementary heat source for driving the absorption chiller-heater to prepare cold energy and heat energy. On the other hand, waste heat of the internal combustion engine can be used for constant-temperature fermentation of methane, and thus methane is produced continuously, stably and efficiently. According to the distributed combined cooling, heating and power supply system based on the biomass gas, gradient utilization of energy is achieved, the methane generated during fermentation of organic matter of biomass is fully recycled, and air pollution is effectively reduced.

The multiple energy source driven lithium bromide cooling air conditioner makes it possible to select different kind of energy source for cooling with the identical lithium bromide cooling set. It contains absorber, solution pump, low temperature heat exchanger, high temperature heat exchanger, high pressure generator, low pressure generator, condenser, evaporator and cooling tower. It features the high pressure generator connected to the solar energy driving assembly comprising solar heat collector, solar heat accumulator and heat pump, and the microwave energy driving assembly comprising magnetron set on the high pressure generator, ultrasonic solid-liquid separator capable of realizing ultrasonic spraying and microwave heating and spraying pump; and the evaporator with ultrasonic evaporator for normal pressure evaporation.

The invention discloses a compression-absorption mixed refrigerator. It includes mechanical compression refrigerator system and lithium bromide absorption refrigerator system. In the mechanical compression refrigerator system, one end of condenser is connected with the compressor, the other end is connected with evaporator by expansion valve; in the lithium bromide absorption refrigerator system, one end of generator is connected with secondary condenser, the other end is connected with absorber through heat exchanger and throttle valve; the mechanical compression refrigerator system is connected with the lithium bromide absorption refrigerator system by heat gathering system; the lithium bromide solution in the generator is heated with the heat generated from the condenser and the compressor by the heat gathering system.

The invention discloses a double-temperature double-effect lithium bromide absorption refrigerating unit, which comprises a high-pressure generator circulating system and a low-pressure generator circulating system, wherein a lithium bromide solution is used as a working medium for the two circulating systems; the high-pressure generator circulating system is coupled with the low-pressure generator circulating system through a low-pressure generator (2), and comprises a high-pressure generator (1), a low-pressure generator (2), a condenser (3), a high-temperature throttling element (4), a low-temperature throttling element (9), a low-temperature evaporator (10), a low-pressure absorber (11), a low-pressure absorber solution pump (12) and a high-temperature heat exchanger (13); a refrigerant flow pipeline (20) is arranged in the low-pressure generator (2); and the low-pressure generator circulating system comprises the low-pressure generator (2), a condenser (3), a high-temperature throttling element (4), a high-temperature evaporator (5), a high-pressure absorber (6), a high-pressure absorber solution pump (7) and a low-temperature heat exchanger (8).

The invention relates to an engine waste heat comprehensive recovery system. The engine waste heat comprehensive recovery system comprises a condenser I, a single-screw expander, a power generator, an engine tail gas exhaust gas exhaust pipe, an evaporative heat exchanger, a working medium pump, an engine tail gas exhaust pipe, a solution pump, a solution heat exchanger, an engine connected cooling water pipe, a first generator, a condenser II, a throttle valve, an evaporator, an absorber, a second generator, an engine connected tail gas exhaust gas exhaust pipe and stop valves A, B, C and D. The engine waste heat comprehensive recovery system has the advantages that the engine high-grade energy recovery system is used for recovering tail gas with high-grade energy, treated tail gas exhaust gas and low-grade energy engine cooling water jointly serve as a heat source to drive a lithium bromide absorption refrigerator for full recovery of tail gas heat, designed valve group-condenser-evaporator units are used in the engine heat recovery system, the function integrity of the system is improved, and the purposes of convenient and rapid operation and easy control are achieved.

The invention relates to a direct-burning lithium bromide absorbing cold hot water unit capable of recycling smoke waste heat. A smoke condensation heat exchanger (18) is arranged at a smoke discharging outlet pipe of a direct-burning high pressure generator, an outlet refrigerant water pipeline of a refrigerant pump (22) is divided into two branches, one branch is connected with an evaporator (4) through a refrigeration refrigerant water valve (15), and the other branch is connected with the smoke condensation heat exchanger (18) through a heating refrigerant water inlet valve (14) and then connected and joined with a pipeline at the rear side of the refrigeration refrigerant water valve (15) through a heating refrigerant water outlet valve (25) or connected with the evaporator (4) alone. A solution pump outlet dilute solution pipeline is divided into two branches, one branch of dilute solution is heated through a low-temperature solution heat exchanger and a high-temperature solution heat exchanger to be connected with the direct-burning high pressure generator, and the other branch of dilute solution is connected with a smoke condensation heat exchanger through a dilute solution inlet valve to be connected and joined with a pipeline at the rear side of the high-temperature solution heat exchanger through a dilute solution outlet valve or connected with the direct-burning high pressure generator alone. The direct-burning lithium bromide absorbing cold hot water unit can fully use the smoke heat and improves efficiency.

The invention relates to an absorption type vehicle-mounted air conditioning system using exhaust gas waste heat of an automobile engine and a coolant of the engine as thermal power sources, which belongs to the field of air conditioning systems. At present, the vehicle-mounted air conditioning systems of public buses and large tourism passenger vehicles generally have extremely high oil consumption and tail gas emission and extremely serious energy waste and environmental pollution. In the vehicle-mounted air conditioning system, water is used as a refrigerant, and lithium bromide solution is used as an absorbent, so that the absorption type vehicle-mounted air conditioning system is nontoxic and flavorless, and does not have harm to human bodies or damaging effects on the atmospheric ozone layer. The heat of the tail gas waste heat of the engine and the coolant of the engine is used as the power sources of the vehicle-mounted air conditioning system, so that the fuel oil consumptionis lowered, the operating cost of the public buses or large tourism buses is reduced, the emission load of automobile tail gas is effectively lowered, and ideas of energy conservation and environmentfriendliness are truly realized.

The invention relates to a method for producing purified trichlorosilane. The method comprises the following steps: (1) a preliminary tower is added at the rectification section of industrial trichlorosilane; (2) a heater is added in front of the preliminary tower to pre-heat feed; (3) the interior of the preliminary tower, the trichlorosilane tower and a silicon tetrachloride tower adopt the form of the compound of filler and trays; (4) silicon tetrachloride can come from the gas phase side at the lower part of the silicon tetrachloride tower; (5) the trichlorosilane tower and the silicon tetrachloride tower can be integrated into a tower or a double-effect distillation method is adopted; (6) a cleaning tower is added behind a dust catcher and in front of a condenser in a cooling section; (7) the cleaning tower adopts base waste heat to drive a lithium bromide set to generate cold water for cooling; (8) heat integration is carried out to synthesized heat so as to save energy and recycle heat; and (9) during the super pure distillation and purification process of trichlorosilane, 3 to 8 rectification towers and adsorption towers or complex distillation towers are adopted. The method has the advantages of low investment, low energy consumption, high purity of the target product, trichlorosilane, and the like.