1044results about How to "To achieve the purpose of energy saving and environmental protection" patented technology

The invention discloses a battery management system with balanced charge and discharge functions and a control method thereof, relating to a battery management system of a dynamic battery pack. The battery management system is structurally characterized in that a central processing unit (CPU) control unit is connected with a battery and relay set so as to detect the working condition of the battery and relay set; the CPU control unit and a balanced discharge module are successively connected with the battery and relay set so as to control the balanced discharge of the battery and the relay set; the CPU control unit, a balanced charge module and the battery and the relay set are successively connected so as to control the balanced charge of the battery and relay set; and a super-capacitor is connected with the balanced discharge module so as to store the discharge energy of the battery and relay set for supplying power for the battery management system. The battery management system can be widely applied to management of various battery packs such as a lead-acid battery, a lithium battery, a nickel-metal hydride battery and the like, supports the expansion of a lower computer, and can conveniently detect and monitor the conditions of multiple batteries.

The invention relates to the technical field of illuminating devices, and particularly to an automatic adjusting system for street lamp brightness based on vision technology. Each streetlamp brightness adjusting subsystem comprises a plurality of street lamps, a camera and a remote control station. The plurality of street lamps share one camera and one remote control station. Configuration of one camera and one remote control station for each street lamp is not required, thereby greatly saving hardware cost. The automatic adjusting system settles the problems of a requirement for the cameras which are mounted next to each street lamp and configuration of a subsequent video processing and analyzing module, isolation of the control module of each street lamp, and relatively high hardware equipment upgrading cost in mounting the device in a large range.

The synthesis method of methyl ethyl carbonate belongs to the technical field of organic compounds synthesized by ester exchange. Dimethyl carbonate and diethyl carbonate, or dimethyl carbonate and ethanol are used as raw materials to perform ester exchange in the presence of catalyst. The reaction mode comprises two kinds of fixed bed continuous reaction and kettle-type reaction. The catalyst issolid alkali catalyst in which the carrier is active carbon, carbon molecular sieve or mesoporous carbon and the active component is Na2O, K2O, MgO, CaO, SrO or BaO. In the process of fixed bed continuous synthesis, the catalyst is stable without inactivation after long-term use, thereby retaining the high yield of the methyl ethyl carbonate, simplifying the production process, and achieving environmental friendliness and energy conservation. In the kettle-type reaction, the catalytic efficiency is high, the catalyst can be recovered by simple filtering and re-sintering, and the target product can be obtained in short time with high yield.

The invention provides an air conditioner electric heating control method and system. When an air conditioner works normally and is in a heating mode, the current indoor environment temperature is compared with two preset indoor environment temperatures, when the current indoor environment temperature is between the two preset indoor environment temperatures, the temperature rising changing amount in a preset time period of the current indoor environment temperature is determined, and judging on electricity auxiliary heating turning on and off of the air conditioner is achieved. The process that whether air conditioner system heating amount meets a practical using requirement is added so that electricity auxiliary heating can be turned on or off timely and effectively, the power consumption of a user is lowered, and the purpose of energy saving and environment protecting is achieved.

The invention discloses a system and method to produce furfural with agricultural wastes, which is characterized by the following: choosing two-step method; comprising hydrolysis system and dehydration distilling system; setting the hydrolysis system as N grade hydrolysis autoclave with end-to-end; proceeding continuous hydrolysis for the agricultural wastes; generating pentose solution; setting the dehydration distilling system as dehydration distilling unit and dehydration reclaiming unit; dewatering and distilling for the pentose solution with the dehydration distilling unit; getting furfural steam; setting the dehydration reclaiming unit as at least one grade dewatering reactor; further-dewatering; generating furfural steam; sending into dehydration distilling tower; distilling continuously; sending the waste water from the dehydration reclaiming unit back to dehydration system; realizing zero discharge for waste water. This invention possesses high productivity, low energy consumption and warm reacting condition, which can be used as raw material to produce alcohol.

The invention discloses a system and method to produce furfural with agricultural wastes, which is characterized by the following: choosing two-step method; comprising hydrolysis system and dehydration distilling system; setting the hydrolysis system as N grade hydrolysis autoclave with end-to-end; proceeding continuous hydrolysis for the agricultural wastes; generating pentose solution; setting the dehydration distilling system as dehydration distilling unit and dehydration reclaiming unit; dewatering and distilling for the pentose solution with the dehydration distilling unit; getting furfural steam; setting the dehydration reclaiming unit as at least one grade dewatering reactor; further-dewatering; generating furfural steam; sending into dehydration distilling tower; distilling continuously; sending the waste water from the dehydration reclaiming unit back to dehydration system; realizing zero discharge for waste water. This invention possesses high productivity, low energy consumption and warm reacting condition, which can be used as raw material to produce alcohol.

The invention provides an Internet-of-Things intelligent car position lock service management system which comprises a data management module, a car position monitoring module, a data sending module, a data receiving module, a mechanical car position lock, a mechanical lock control module and a mobile phone third-party application. Through big-data real-time analysis, reasonable planning is carried out, through connection of an intelligent car position lock and the internet and a mobile phone terminal, intelligent management of community public and private parking positions and social public parking positions is achieved, an on-line reserving function is achieved, and the problem of resource wasting caused by parking position crowding and inconvenient selecting is solved.

The invention discloses a device for the intelligent control of LED (light-emitting diode) indoor illumination. The device comprises a sensor, a sampling module, an A / D (analog-to-digital) converter, an intelligent processing chip, an internal memory, an input device, a display screen, a PWM (pulse-width modulation) signal generator, an LED drive circuit, an LED spotlight mode converting switch and an LED lamp system, wherein the LED lamp system comprises LED lamps with various colors and spotlight modules in different directions; the sensor is used for receiving the external signals and converting the signals into analog electrical signals; the sampling module is connected with the sensor and used for sampling the signals received by the sensor; the output terminal of the sampling module is connected with the A / D converter and used for transmitting the sampled optical signals to the A / D converter; the A / D converter is used for converting the received analog signals into digital signals and transmitting the converted signals to the intelligent micro-processor chip connected with the A / D converter; and the intelligent micro-processor chip is further connected with the sampling module and used for providing the clock frequency for the sampling module. Accordingly, the device is capable of automatically adjusting the light intensity, color and direction of the LED.

A manufacturing method of nodulizers with small chemical composition segregation and low oxidation loss is characterized in that the first part is an extruded magnesium treatment device which reacts under the condition of being filled with inert gases or carbon dioxide, thus effectively controlling the reaction time of the magnesium metal and superalloy liquid and conducing to the magnesium metal to form Mg2Si; the second part is a combined molten pool for pouring nodulizer alloy liquid; the combined molten pool and the pouring basin can ensure that the nodulizer alloy liquid rapidly fills the die cavity of the molten pool in a possibly short time and that the nodulizer alloy liquid of the pouring type die cavity can congeal at the same time. The alloy liquid is evenly cooled in a closed die cavity, thereby overcoming the oxidation and segregation of the upper surface of the nodulizer alloy liquid. The product quality is stable and the manufacturing cost is obviously lower than that of the nodulizer produced by the secondary smelting and remelting method. The method cancels the secondary smelting process of the nodulizers of rare earth-Mg-Si-Fe, achieves the purpose of energy-saving and environment protection and eliminates environmental pollution.

The invention relates to a stainless steel ion nitriding process, and in particular relates to an austenitic stainless steel ion nitriding permeation catalyzing process. The process mainly comprises the following steps: 1) washing the surface of a stainless steel surface, and removing the oil stain and impurities on the surface of the workpiece; 2) carrying out pre-oxidation treatment on the stainless steel workpiece; 3) putting the stainless steel workpiece into an ion nitriding furnace after being cooled down, introducing dried hydrogen, building up of luminance and heating up, after reaching a certain temperature, introducing nitrogen, adjusting the ratio of the nitrogen to the hydrogen and the pressure in the furnace, subsequently starting to time, after nitriding for a certain time, closing the ion nitriding furnace and cooling down the workpiece along with the furnace. The austenitic stainless steel treated by using the process can obtain a compound layer which is thicker than that of an ordinary ion nitriding process.

The invention relates to a UV printing and coating process for a metal lettering cover, comprising the following steps: (1) plate making; (2), surface treatment for a base material; (3) UV printing; (4) continuous curing of a UV light cluster; (5) coating on a printed pattern to protect the printed pattern; (6) inside coating, wherein epoxy-phenolic coating is adopted for coating; (7) spraying wax, wherein wax is sprayed on the front face and back face of the printed and coated base material. In the UV printing and coating process, pretreatment is carried out on the surface of the base material through a flame treatment machine so that quality defects caused by abrasion of the surface of the material are avoided, and better adhesive force between UV printing ink and the surface of the base material is ensured. In addition, the flame treatment machine and a material transporting part of a UV metal printing machine are integrated so as to form a processing pattern of on-line continuous base material surface treatment and printing production and avoid treatment of the surface of the base material by a drying house. Therefore, the production processes are reduced, the production efficiency is improved, consumption of natural gas energy and discharge of waste gas are greatly reduced, and the purposes of energy saving and environment protection are achieved.

The invention discloses a device and a method for controlling an energy efficiency operation mode of an air conditioner. The device is formed by connecting a central server and an additional device. The central server is composed of a personal computer (PC) and a first wireless transmission module. The additional device is composed of a central processing unit, a second wireless transmission module, an air conditioner interface module and a sound output device. The method includes the following steps: starting a center server, setting network connection parameters, seasons and dates, connecting the Internet to obtain current temperature information openly published by the weather bureau, starting the air conditioner and the additional device, connecting the center server through the wireless transmission modules, setting the target temperature of the air conditioner according to the obtained current temperature, determining the target temperature and the operation mode according to the obtained weather temperature information of a current site through temperature and season judgment and controlling the air conditioner. The current external weather temperature and humidity information is obtained through a wireless network and combined with the target temperature of the air conditioner, the target temperature of the air conditioner is set through environment temperature, and the aims of saving energy and protecting environment are achieved.

The invention relates to an auxiliary power supply system of an urban rail vehicle. The auxiliary power supply system comprises a pantograph and a main traction inverter, and further comprises one or more auxiliary power supply devices. The pantograph transmits the current of a contact network to the main traction inverter and the auxiliary power supply devices. The auxiliary power supply devices output a direct-current power supply, and the output ends of the auxiliary power supply devices are connected with electricity loads. Some electricity loads are provided with inverters, or the input ends of some electricity loads are connected with an inverter power supply. The input ends of the inverters and the input end of the inverter power supply are connected with the output ends of the auxiliary power supply devices. According to the auxiliary power supply system of the urban rail vehicle, alternating current auxiliary power supplying of existing urban rail vehicles such as a metro and a light rail is converted into direct current auxiliary power supplying, and the direct current of an electric device is converted into the needed alternating current through the inverters or in the mode that the inverter power supply is connected to the input end of the electric device, so that the weight of the power supply device is greatly reduced, the whole vehicle weight is reduced, light weight of the metro and light rail vehicles is achieved, meanwhile, the device cost can be reduced, and the purposes of energy conservation and environment protection are achieved.

The invention discloses an ultrathin luminous floor. A super bright LED or other fine light sources, such as CCFLs (Cold Cathode Fluorescent Lamps) and EFLs (External Electrode Fluorescent Lamps) and the like, are adopted as light source appliances, and the light guide plate of a dot reflection layer diffuses light rays evenly, thereby a linear light source illumination mode is converted into an area light source illumination mode and the change of the basic function of the floor is integrally realized. By a new technology and a new conception, the floor has the advantages of novel component materials, durability, energy saving and environmental protection; and in addition, compared with the traditional floors on market, the floor has the characteristic of brightness, thinness and attractiveness.

The invention discloses a novel biomass granular fuel, and belongs to the field of biomass granular fuels. The novel biomass granular fuel comprises the following three raw materials by mass percent: 20-60 percent of wood chips, 20-45 percent of rice hull and 10-40 percent of coal gangue powder. According to the proportion, the wood chips and the rice hull are pulverized, the coal gangue powder is added and then the mixture is uniformly mixed; and the mixture is subjected to drying, compressing, screening, cooling and packaging procedures to prepare the biomass granular fuel. According to the invention, the novel biomass granular fuel can solve the problems of single raw material source, short fuel burning time, incomplete burning and the like of the conventional biomass granular fuel and has the advantages that the raw material sources are wider, the energy saving and environmental protection purposes are achieved, the fuel burning time is prolonged, and the heating value of the biomass granular fuel is increased.

The invention discloses an ultrahigh strength high-performance fiber concrete at C160 strength grade and a preparation method thereof. The concrete comprises the following components in parts by weight: 485 parts of cement, 82 parts of water, 1000 parts of macadam, 750 parts of fine aggregate, 70 parts of coal ash, 73 parts of rice hull ash, 102 parts of silica fume, 14.0 parts of water reducer, 9.5 parts of excitant, 1.6 parts of cellulosic fiber, 40 parts of hydroxy modified carbon nano tube dispersion liquid, 37 parts of graphene oxide dispersion liquid and 2.6 parts of de-foaming agent. The prepared concrete has higher toughness, durability, higher bonding strength with profile steel, compressive strength reaching up to 167.74MPa, breaking strength reaching up to 35.21MPa, splitting strength reaching up to 14.59MPa, bonding strength with profile steel reaching up to 7.54MPa and chloride penetration resistance grade at VI-grade. When the ultrahigh strength high-performance fiber concrete is applied to a profile steel concrete combined structure, the cooperative working property between the profile steel and the concrete is effectively exerted and the defects of poor bonding property of the profile steel and the concrete and incapability of fully utilizing the respective mechanical properties of the profile steel and the concrete can be overcome.

The invention discloses a low-nitrogen burner. According to the technical scheme, the low-nitrogen burner is characterized in that a mixer of the low-nitrogen burner comprises a barrel and a gas inlet, wherein an inner barrel and burning-supporting air swirling pieces arranged on the inner wall of the inner barrel are arranged at the gas inlet front end inside the barrel; an air inlet barrel located on the back side of the burning-supporting air swirling pieces in the air inlet direction is arranged at one end, close to the gas inlet back side, of the inner barrel; the air inlet barrel, the inner barrel and the inner wall of the barrel are connected in a sealed manner to form a gas sub-cavity; inclined flow guiding holes are formed in the air inlet barrel; a primary swirling impeller is arranged in the position, located on the air inlet back side of the inner barrel, inside the barrel; and the primary swirling impeller and the air inlet barrel form a primary mixing chamber. Through the arrangement, gas is ejected via the gas sub-cavity from the inclined flow guiding holes, the ejected gas can form multiple single, short and powerful gas flows, air flows sent by a fan pass through the burning-supporting air swirling pieces to form short and powerful rotating air flows, and the rotating air flows are circular and impact the multiple single gas flows, so that the air and the gas of the primary mixed gas reach the air-fuel ratio in the complete burning theory.

The invention discloses an ultrathin luminous ceiling. A super bright LED or other fine light sources, such as CCFLs (Cold Cathode Fluorescent Lamps), EFLs (External Electrode Fluorescent Lamps), fluorescent lamps and the like, are adopted as light source appliances, and the light guide plate of a dot reflection layer diffuses light rays evenly, thereby a linear light source illumination mode is converted into an area light source illumination mode and the change of the basic function of the ceiling is integrally realized. By a new technology and a new conception, the ceiling has the advantages of novel component materials, energy saving and environmental protection; and in addition, compared with the traditional ceilings on market, the ceiling has the characteristics of thinness, brightnesss, evenness and attractiveness.

The invention discloses an energy-saving environment-friendly street lamp device. The energy-saving environment-friendly street lamp device comprises a street lamp pole and an LED lamp bank fixed to the street lamp pole, the street lamp device is further provided with a lithium battery pack which supplies power to the LED lamp bank, a solar energy charging unit and a wind energy charging unit, and the solar energy charging unit and the wind energy charging unit are used for charging the lithium battery pack. According to the street lamp device, solar energy and light energy can be effectively utilized to provide electric energy for the street lamp, meanwhile, the electric energy can be utilized more effectively with a reasonable control method, waste is avoided, and the energy conservation and environmental protection purpose is achieved.

The invention discloses a hybrid electric storage device used for storing solar energy, which comprises a solar panel. The solar panel is connected with a maximum power tracking module which is connected with a control device and a charging switching module; the charging switching module is connected with a super capacitor bank and a storage battery which are connected in parallel; the super capacitor bank is connected with a DC / DC(Direct Current-Direct Current) power module; the DC / DC power module and the storage battery are connected with a discharging switching module; the discharging switching module and the charging switching module are connected with the control device; and the discharging switching module is connected in series with a load and the solar panel. The hybrid electric storage device adopts the super capacitor bank and the storage battery for hybrid energy storage, and the super capacitor bank and the storage battery form a solar energy storage device, so that the storage battery is protected, the service life of the storage battery is prolonged and the hybrid electric storage device reaches the purposes of making full use of the solar energy, saving energy and protecting the environment.

The invention provides a production method of a polyoxazolidone laminated board, comprising the following steps: reacting diisocyanate with epoxide resin by taking imidazole compounds as catalyst for producing polyoxazolidon resin during the gradual rise of temperature; and then producing the polyoxazolidone laminated board by using the polyoxazolidon resin. The polyoxazolidone laminated board the end of which is sealed with isocyanate has better mechanical strength, favorable heat resistance and high glass transition temperature above 155 DEG C; and when in use at 180 DEG C or 200 DEG C, the mechanical property and electrical propertye of the polyoxazolidone laminated board are over 70 percent.

The invention relates to a separation process for magnetic red mixed ore based on iron material disseminated particle size treatment. The process comprises the operation of feeding the mixed ore withthe grade of 27%-29% and with magnetite as a main raw material into first-section closed circuit ore grinding operation to obtain a primary grading overflow product, and is characterized by further comprising first-section weak magnetic and strong magnetic operation, fine screening operation, first-section magnetic separation and first-section washing magnetic separation operation, second-sectionclosed circuits ore grinding operation, second-section weak magnetic strong magnetic operation, second-section magnetic separation and washing magnetic separation operation, third-section closed circuit ore grinding, third-section weak magnetic strong magnetic operation and reverse flotation operation. The final concentrate with the grade of 66%-66.5% is obtained through the operation. Compared with the prior art, the separation process has the advantages that 1) an efficient separation process which is characterized in that the concentrate can be obtained once dissociation is achieved and segmented ore grinding, segmented concentrate taking and segmented tailings discharging are achieved is provided for the magnetic red mixed ore with the non-uniform iron material disseminated particle sizes, so that overgrinding is reduced, and energy conservation and consumption reduction are achieved; 2) magnetic separation equipment is adopted for upgrading, and three sections of ore grinding is carried out by adopting vertical mills; and 3) the process is simple in structure, free of middling circulation, easy to implement on site and easy to produce and manage.

The invention discloses a novel fume hood. The fume hood comprises a body, wherein the body is provided with an electric air valve; a lifting safety sliding door is arranged on the front of the body; and a face velocity sensor is also arranged on the front of the body. The fume hood also comprises a central control system electrically connected with the electric air valve, the safety sliding door and the face velocity sensor, wherein the face velocity sensor monitors pressure changes in the body after the safety sliding door is lifted, converts the values of pressure changes in the body into electrical signals and transmits the electrical signals to the central control system; and the opening angle of the electric air valve and lifting of the safety sliding door are controlled by the central control system. The fume hood has the following beneficial effects that: energy consumption and air loss in the laboratory are greatly reduced so that a relatively stable environment is maintained for experiments, thus achieving the aims of energy conservation and environmental protection and greatly improving the comfort level and environmental protection property of the laboratory.

The present invention relates to a steel pipe production process, particularly to a ND steel seamless steel pipe production process, which mainly comprises: 1) carrying out a peeling treatment on a round rod pipe billet; 2) heating the round rod pipe billet to a temperature of 1000-1100 DEG C, wherein the piercing temperature is 950-1050 DEG C; 3) carrying out acid washing, phosphorization and lubrication; 4) carrying out first cold drawing; 5) carrying out acid washing, phosphorization and lubrication; 6) carrying out second cold drawing; 7) carrying out acid washing, phosphorization and lubrication; 8) carrying out intermediate annealing on the pipe; 9) carrying out acid washing, phosphorization and lubrication; 10) carrying out third cold drawing; 11) carrying out a heat treatment on the finished product; and 12) carrying out physical and chemical inspection, straightening, finishing, eddy current testing, pipe inspection, ultrasonic testing, and steel pipe stenciling and warehousing. According to the present invention, the surface of the ND steel seamless steel pipe obtained by adopting the process does not have hot cracks, and the ND steel seamless steel pipe has good sulfuric acid dew point corrosion resistance.

The invention discloses an intelligent control method for a fresh air handling unit. The control method comprises the following steps: (1) monitoring indoor and outdoor temperature values, an indoor CO2 concentration value and a PM2.5 concentration value in real time; and (2) firstly, adjusting the openness of a fresh air valve according to the monitored indoor and outdoor temperature values and an indoor temperature priority algorithm, and when the outdoor temperature or indoor temperature is in a preset range, calculating and executing the openness of the fresh air valve according to the monitored CO2 concentration value, the PM2.5 concentration value and an air quality balance algorithm. The invention further provides the fresh air handling unit applying the control method. By the adoption of the indoor temperature priority algorithm and the air quality balance algorithm, the indoor temperature can be guaranteed preferentially under any working condition, and then the indoor PM2.5 concentration and the indoor CO2 concentration are effectively controlled, so that the environmental quality of air in a classroom is guaranteed, and the comfortable sensation of a student to a learning environment is enhanced; and the operation duration of the fresh air handling unit is preset according to a class period and background noise in the classroom, so that no influence on the class teaching is caused during the operation of the fresh air handling unit, and a good learning environment is supplied to the student.

A hand-held water quality analyzer comprises a master control unit, a first / second sensor unit, a data storage unit, a human-computer interface unit and a power supply processing unit, wherein the master control unit includes a CPU processing system unit, a first / second sensor control and interface unit, a data storage interface unit, a human-computer interface conversion interface unit and DC / DC conversion unit which are connected with the CPU processing system unit; the first sensor unit is connected with the first sensor control and interface unit; the second sensor unit is connected with the second sensor control and interface unit; the data storage unit is connected with the data storage interface unit; the human-computer interface unit is connected with the human-computer interface conversion interface unit; and the power supply processing unit is respectively connected with the DC / DC conversion unit and the first / second sensor control and interface unit. The hand-held water quality analyzer provided by the invention is used to realize automatic and accurate multi-parameter measurement and analysis of various water quality, is energy saving and environmentally friendly, is easy to operate and maintain, and can be used to solve problems of single function and long measuring period in the prior art.

The invention provides a heat dissipation system for an oven and the electric oven. The heat dissipation system for the oven comprises an air inlet, an air channel, an air outlet and a fan. The air inlet comprises an oven body air inlet and a door body air inlet, the oven body air inlet is formed in the front portion of the oven, and the door body air inlet is formed in the bottom of an oven door body. The air channel comprises a door body air channel, a first air channel and a second air channel, the door body air channel is communicated with the door body air inlet, and the first air channel is communicated with the oven body air inlet and the door body air channel. The air outlet is formed in the rear portion of the oven and is communicated with the second air channel. A fan exhausts air inside the first air channel into the second air channel. According to the technical scheme, users are effectively prevented from being scalded by the hot air exhausted from the air outlet, and the safety of the oven is improved.

An automatic supplying system of solar-heated drinking water is composed of a water purifying system, a solar heating system, a hot water storing system and an electric automatic control system. The basic theory is that firstly water is performed with purifying treatment and then heated by solar energy; in cloudy days, the water is heated by low-ebb power in servo mode; the electric automatic control system is assembled for achieving intellectualization; and the automatic supplying system is managed in automation mode. The automatic supplying system can supply drinking water quantificationally at regular time, requires no specially-assigned person for management, saves labor power, organically combines solar energy with low-ebb power with intelligent management aided, belongs to energy-saving environment-friendly zero-discharging programs, saves resources, can replace all the existing boiler rooms of enterprises and public institutions, simultaneously can be integrated with buildings to achieve water supplying of washing, bathing and drinking of residents and warming in winter.

The invention relates to a double-effect Roots-type MVR (Mechanical Vapor Recompression) falling film evaporation system. The double-effect Roots-type MVR falling film evaporation system comprises double-effect falling film evaporators and a water vapor recompression system, wherein the double-effect falling film evaporators comprise a primary-effect evaporator and a secondary-effect evaporator which respectively comprises a heating chamber and a separation chamber; the water vapor recompression system is mainly formed by a Roots-type MVR compressor; a vapor outlet of a separation chamber of the secondary-effect evaporator is connected with a vapor inlet of the water vapor compressor, and a vapor outlet of the water vapor compressor is connected with a vapor inlet of the primary-effect evaporator. According to the double-effect Roots-type MVR falling film evaporation system, by recycling low-grade waste heat of the primary-effect evaporator and the secondary-effect evaporator and reutilizing all latent heat of secondary vapor generated in a solution evaporation process, primary energy is saved, the energy consumption in a solution evaporation process is greatly reduced, and the environmental pollution is reduced. The double-effect Roots-type MVR falling film evaporation system is simple in structure, small in occupied space and high in automation degree, only requires a small amount of vapor when being started, does not require live vapor after being started, is particularly suitable for heat-sensitive materials, has a wide application range and can be used on occasions of evaporation concentration, evaporation crystallization and low-temperature evaporation.

The invention relates to an energy-saving lighting control system, which comprises a microwave motion sensor, an illumination detection unit, a control processor, a relay, a brightness adjusting unit, an illuminating lamp, a wireless communication unit and an intelligent terminal, wherein the microwave motion sensor and the illumination detection unit are simultaneously connected with the control processor; the control processor is connected with the illuminating lamp through the relay and the brightness adjusting unit; and the intelligent terminal is connected with the control processor through the wireless communication unit to control on / off of the illuminating lamp through the control processor. After an ambient light intensity signal is lower than a preset value and a human motion position signal is received, the illuminating lamp is turned on through the relay, and control on on / off and the brightness of the illuminating lamp according to the people flow condition is achieved, so that the lighting quality is ensured, meanwhile, the energy consumption is reduced and the targets of energy conservation and environment protection are achieved. In addition, the intelligent terminal can carry out remote on / off control and brightness adjustment on the illuminating lamp through the wireless communication unit, so that the green energy-saving effect of a building and energy efficiency management are achieved.