590results about How to "With energy saving effect" patented technology

The invention relates to a cement-based shrinkage-free joint filling sealing mortar for doors and windows and a preparation method and a construction method thereof. The sealing mortar is prepared by the components in parts by weight as follows: 100 parts of cement, 0-80 parts of active admixture, 0.01-10 parts of water reducer, 0.01-10 parts of early strength agent, 0.01-10 parts of thickening time control agent, 0-25 parts of expanding agent, 0-30 parts of binder, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of moisture repellent, 0-5 parts of starch ether, 0-150 parts of powder filler and 0-300 parts of aggregate. Compared with the prior art, the mortar provided by the invention has the advantages of no shrinkage, strong binding power, no falling, good anti-permeability, simpleness in construction, efficiency and the like, and can adequately fill joints of doors and windows to ensure the sealing property around the doors and windows, and water is prevented from being seeped into the doors and windows.

The invention provides a digital household scene control management system and method, suitable for the field of digital household. The system comprises a cloud server, a mobile terminal and a main household gateway, wherein the cloud server sends pre-stored scene mode customization information when receiving a download request of the scene mode customization information, and sends pre-stored scene configuration information when receiving a download request of the scene configuration information; the mobile terminal receives the scene configuration information after sending the download request of the scene configuration information to the cloud server, generates the scene mode customization information according to the scene configuration information, and the sends the scene mode customization information to the cloud server; and the main household gateway stores and updates the scene configuration information and sends the scene configuration information to the cloud server, receives the scene mode customization information after sending the download request of the scene mode customization information to the cloud server, and controls and manages the scene mode according to the scene mode customization information. Thus, the diverse scene modes of the digital household are timely, conveniently and accurately customized.

The invention specifically relates to a multifunctional green environment-friendly waterborne energy-saving building coating and a preparation method thereof, belonging to the technical field of energy-saving building coatings. The multifunctional high-efficiency energy-saving building coating comprises, by weight, 25 to 50% of a high polymer emulsion, 5 to 30% of a light-reflection filling material, 1 to 5% of aerogel powder, 5 to 10% of a heat-insulation filling material, 5 to 15% of a common filling material, 1 to 2% of a surface modifier, 1 to 5% of a dispersing agent, 0.1 to 4% of a film-forming aid, 0.1 to 2% of a thickening agent, 0 to 1% of an antifoaming agent, 0.01 to 0.5% of a pH regulating agent, 0.1 to 2% of a wetting agent and 0.5 to 2% of an antifreezing agent, with the balance being deionized water. The coating provided by the invention has heat-insulation and cooling effect in summer and heat preservation effect in winter, is applicable to energy-saving reconstruction of buildings in tropical zones and subtropical zones, and has the characteristics of safety, no toxicity, environment friendliness and no pollution; moreover, the coating has good weatherability, contamination resistance, flexibility and scrubbing resistance.

The invention relates to an aerated concrete regenerative building block produced by using garbage clinkers and a manufacturing method thereof. The manufacturing method comprises the following steps of: adopting the garbage clinkers, flying ash, river sand, silicate cement, lime, calcium sulfate, poly-carboxylate water reducing agent, aluminum powder, glcditsia sinensis powder, borax, sodium chloride and water as raw materials; stirring the raw materials into a paste by using a double-shaft hybrid stirring machine, and pouring the paste into a die; performing delaying curing for gas development and solidification; forming the paste through machinery cutting; putting the formed garbage clinker aerated concrete regenerative building block into a still kettle to perform steam curing; and raising the temperature to heat up the building block for 2 to 3 hours first, heating the building block for 5 to 8 hours at a constant temperature of between 95 and 100 DEG C, and then naturally cooling the building block for 1 to 2 hours to obtain a garbage clinker aerated concrete regenerative building block product. The product has the advantages and effects of light weight, high strength, no pollution, low cost and good benefit, and accords with a national prescription for saving energy, reducing emissions, developing low-carbon economy and protecting the environment.

The invention discloses an ATO (Automatic Train Operation) speed command optimization method of an urban rail transit train. The method comprises the following steps: establishing a data module for optimizing an ATO speed command; establishing an ATO speed command combination evaluation module to evaluate superiority-inferiority of a current ATO speed command combination; establishing a multi-objective genetic algorithm NSGA-II (Non-dominated Sorting Genetic Algorithm II)-based ATO speed command energy-saving optimization method to determine an energy-saving ATO speed command so as to finally obtain an interval energy-saving ATO speed command set. According to the method, the optimal ATO speed command set of all operation intervals of a metro line can be obtained, the optimization time is greatly shortened, off-line optimization can be performed, on-line optimization can also be performed, the metro traction power consumption is reduced, and a large amount of electric energy can be saved for the urban rail traffic system of China each year.

The invention discloses a fan frequency conversion control system and method for air pressure dynamic balance of a mine stope. The fan frequency conversion control system comprises an alternating-current frequency converter console, a counter rotating axial flow fan, carbon monoxide sensors, air speed sensors, a differential pressure sensor, an intrinsically safe power supply, and an intrinsically safe junction box, wherein the alternating-current frequency converter console has two sets of alternating-current frequency converters; the frequency converters, the counter rotating axial flow fanand the intrinsically safe power supply are arranged in an inlet alley; the air speed sensor 1 is arranged in the air inlet alley; the differential pressure sensor and the air speed sensor 2 are arranged in an air return alley; and the two carbon monoxide sensors are arranged in an air return corner region. Data such as carbon monoxide content, air quantity, air pressure and the like is real-timemonitored, ventilation quantity of a mining working surface is automatically controlled, so that the mining working surface and the environment air pressure automatically achieve dynamic balance, thus the safety production of the mining working surface is achieved when a plurality layers of mine goafs are communicated with each other, the working efficiency, the precision degree and the safety degree are improved; the fan is driven by frequency conversion, so that the fan has energy-saving effect, broad adaptability, social benefits and economic benefits.

A bake-bent low-radiation coated glass relates to coated glass, in particular to low-radiation coated glass. The invention provides a low-radiation coated glass and an interlayer thermal-insulation glass composed of the low-radiation coated glass, wherein the film structure of the low-radiation coated glass comprises a glass plate, a first dielectric layer, a low-radiation layer, a second dielectric layer, and a protective layer, wherein the film structure of one embodiment comprises a glass substrate SiOx / SiOxNy / SnOx / NiCrOx / ZnSnOx / Ag / NiCrOx / SnOx / SiOxNy film from inner to outer at the glass plate, the low-radiation coated glass, PVB (polyvinyl butyral) and another glass plate are layered to form an interlayer thermal-insulation glass which visible light transmission is more than 76% and solar energy transmission is lower than 53%, therefore, the interlayer thermal-insulation glass is particularly applied on vehicle front shield glass.

The invention provides a self-operated three-way valve used for a special machine in a refrigerant circulation parallel machine room. The three-way valve comprises a valve body, a low pressure air inlet pipe, a high pressure air inlet pipe and an exhaust pipe. The valve body is internally provided with a piston component, a valve seat and a sliding valve. The internal chamber of the valve body is divided into a low pressure chamber and a high pressure chamber by a piston which can axially move. A low pressure capillary is connected between the low pressure chamber and the low pressure air inlet pipe. A low pressure capillary is connected between the high pressure chamber and the high pressure air inlet pipe. The low pressure chamber and / or the high pressure chamber are / is internally provided with a spring. By the pressure difference of the suction and exhaust when a spring force and a compressor are stated, the piston component which is arranged in the valve body drives the sliding valve to be closely attached to the surface of the valve seat to slide, thus achieving the communication between the high pressure air inlet pipe and the exhaust pipe and the communication between the low pressure air inlet pipe and the exhaust pipe. The three-way valve needs no outside power, can achieve the free switching of refrigerant refrigeration circulation and the natural circulation just according to the running state of the compressor, thus sufficiently displaying the energy-saving advantage of the special machine in the refrigerant circulation parallel machine room and improving the operation reliability.

The invention relates to an air compressor oil composition and a preparing method thereof. The air compressor oil composition comprises the following ingredients: A, base oil consisting of ester oil and PAO (Polyalphaolefin) oil; B, antioxidant consisting of an amine antioxidant and dialkyl dithiocarbamate ester; C, at least one oiliness additive; D, at least one high-viscosity complex ester compound; E, at least one metal passivator; F, at least one emulsion breaker; G, at least one antifoamer. The air compressor oil composition has the advantages of environment-friendliness, capability of saving energy and reducing consumption and excellent oxidation resistance. The invention further relates to the preparing method of the air compressor oil composition.

The invention belongs to the technical field of cold and heat energy transportation, and relates to a heat pipe and refrigerating system combined energy transportation method. A double circulation controlled heat pipe system and a compressed circulation refrigerating system are combined to realize energy transportation; a device system for realizing energy transportation comprises two kinds of heat exchangers, namely an evaporator and a condenser, and each kind of heat exchanger comprises one heat exchanger or two heat exchangers which are connected in parallel; the whole device system comprises the heat pipe system, the refrigerating system and five subsystems such as a condensate supplying and distributing system, a gas-liquid two-phase flowing and separating device, a gas phase conveying and distributing system, a liquid phase collecting and storing system and a temperature adjusting and controlling system; the method is used on cooling occasions of machine rooms of a communicationbase station and various power supply cabinets and control cabinets; the heat pipe system and a heat pump system work in a combined mode, and intermittent waste heat or afterheat is effectively utilized, so that an energy-saving effect is good, and energy consumption is low; and the used system device has a simple structure and small occupied space and is environment-friendly.

The invention relates to an assembly type building component joint gypsum base sealing material and application thereof. The assembly type building component joint gypsum base sealing material comprises, by weight, 100 parts of waste gypsum, 20-200 parts of active admixture, 0.01-10 parts of water reducer, 0.1-50 parts of excitant, 0-10 parts of thickening control agent, 0-30 parts of binder, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of water repellent, 0-5 parts of starch ether, 0-10 parts of thixotropic lubricant, 0-150 parts of powder filler and 0-300 parts of aggregate, and can be applied to joint sealing after being mixed with water uniformly. Compared with the prior art, the assembly type building component joint gypsum base sealing material has the advantages of convenience in use, good filling ability, high binding power, durability, low cost and the like. In the sealing material, much industrial waste gypsum is used as gelatinization materials, so that performance of sealing mortar can be improved, material cost is reduced, pollution control and emission reduction are facilitated, and a new way for resource utilization of the industrial waste gypsum is provided.

The invention relates to the technical field of advertisement display boards, in particular to outdoor energy-saving advertising equipment. The equipment comprises an advertising board, a sweeping device, a mounting base, a dust sensor and a controller; the mounting base is of a box structure and comprises an upper box body and a lower box body, a partition plate is arranged between the upper box body and the lower box body, the advertising board is arranged on the mounting base, a rainwater collecting box, a solar electromagnetic board and a wind-driven generator are arranged on the top of the advertising board, the power output ends of the solar electromagnetic board and the wind-driven generator are connected with a storage battery which is arranged inside the upper box body and supplies electricity for the whole equipment, a drain hole is formed in the bottom of the rainwater collecting box, a water diversion pipe is connected to the drain hole, the lower end of the water diversion pipe penetrates through the partition plate and leads to the lower box body, a water level sensor is arranged inside the lower box body, and a valve is arranged on the water diversion pipe. By means of the outdoor energy-saving advertising equipment, the problem that due to the fact that nobody cleans a traditional advertising board for a long time, the advertisement display effect is affected can be solved, and the function of automatically cleaning the advertising board is achieved.

The invention discloses an air conditioner system and an operation method of the air conditioner system. The air conditioner system comprises: a plurality of indoor machines and outdoor machines; a server for storing meteorological information received from a meteorological agency server and provides meteorological information according to received application; a central controller applying for meteorological information to the server and controlling the operation of a plurality of indoor machines and outdoor machines according to the meteorological information received from the server. The method comprises: a phase of detecting the position information of a plurality of indoor machines and outdoor machines; a phase of applying for meteorological information to the server according to the detected position information; a phase of reading the meteorological information received from the server and controlling the set temperature for heating and refrigeration of a plurality of indoor machines. The invention resets the operation conditions of a plurality of indoor machines and outdoor machines according to the meteorological information received from the server so as to conduct effective control corresponding to the meteorological variation and maintain the best air conditioning environment; therefore, the invention improves greatly the convenience for users, and also has energy-saving effect.

The invention discloses an electrically-driven mining truck comprising an on-board truck control system, a driver input system, an electric drive system driving the truck, a battery management system functioning in charging and discharging, a current collection system providing the truck with external power, and a brake system used for braking the truck. The truck control system is respectively connected with the driver input system, the electric drive system, the battery management system, the current collection system and the brake system through a data bus. The current collection system is connected with an external string. The current collection system is respectively connected with the electric drive system and the battery management system through a power line, provides the electric drive system with external power, and charges the battery management system. The battery management system is connected with the electric drive system through another power line. The electrically-driven mining truck can be powered to operate by either a storage battery or an external wire, so that operational cost can be reduced and energy is saved.

The invention relates to a liquid crystal display panel which comprises a plurality of pixels, a frame rate detecting unit and a brightness / gray scale adjusting unit. The frame rate detecting unit sequentially receives a first pixel frequency and a second pixel frequency and outputs a judgment signal according to the first pixel frequency and the second pixel frequency. The brightness / gray scale adjusting unit is respectively coupled to the frame rate detecting unit and the pixels, and adjusts and drives a scanning signal or a data signal of at least one pixel, so that the pixels display approximately equal first brightness / gray scale and second brightness / gray scale under the first pixel frequency and the second pixel frequency. The invention also discloses a liquid crystal display device and a control method thereof, as well as a control method of the liquid crystal display panel.

The invention relates to an electric excitation permanent magnet switch, a reluctance motor for the electric excitation permanent magnet switch and an electric excitation method. In the electric excitation permanent magnet switch, two magnetic poles of a permanent magnet are respectively connected with both ends of an iron core on which magnet exciting coils are wound by two soft magnets; and salient poles are arranged on the soft magnets. In the reluctance motor, the switch is used as basic components of a stator and a rotor, and the two magnetic salient poles of each component are arranged in an axial direction; the salient poles of the stator component and the rotor component are arranged oppositely, and air gaps are reserved between the salient poles; and the magnet exciting coils of the stator component and the rotor component at the axial symmetrical position are connected in series or in parallel and then are used as a phase line respectively to be connected to an excitation control power supply. The invention also provides a combination motor formed by connecting motor monomers by using a shaft in a rotary and dislocation mode and a method for the simultaneous diphase electric excitation of the stator component. The switch and the motor save energy, and have low magnetic loss and high magnetic efficiency; and the combination motor with the diphase electric excitation realizes the subdivision of stepper angles, and improves running stability, control accuracy and output power.

The invention relates to a solar heat- reflective insulating varnish, belonging to coating technology field. When it is coated on the surface of glass, it can insulate heat and maintain glass transparency. The invention aslo provides the preparation method. The comprised raw material and proportion by weight are as follows: film forming matter 35-45, inorganic oxidant 10- 15, levelling agent 0.5- 1, defoaming agent 0.3- 0.5, silane coupling agent 1- 5, and mixing solvent 33.5- 53.2. The varnish is characterized by heat resistance, water resistance, acid and alkali resistance, high reflecting solar heat, good light transmission rate, low cost, energy- saving, and suitability to be used for building galss, car glass, solar house heating, incandescent lamp lighting and refrigerator glass. The preparation process and device is easy and simple and is suitable for industrial production.

The present invention relates to an electric power-assisted pulley shoe. The shoe of the present invention comprises a bracket (1), wherein the bracket (1) is a hollow structure having a cavity, a controller (7) and a battery (6) are arranged inside the cavity, the top of the bracket (1) is provided with a fastener (5), the rear part of the bracket (1) is provided with a mechanical friction type brake (8), the bottom of the bracket (1) is provided with a motor (3), the motor (3) and the battery (6) are connected, the motor (3) is a hub motor, a stator of the motor (3) and the bracket (1) are connected, an outer rotor of the motor (3) is sleeved with a pulley (2), and the motor (3) and the controller (7) are electrically connected. The electric power-assisted pulley shoe of the present invention has characteristics of simple structure, small volume, light weight and easy carrying.

The invention discloses flash spinning equipment. The equipment comprises a box, a spinning nozzle, a steering board and a conveying device, wherein a spinning solution inlet is formed in one side ofthe box, the spinning nozzle is arranged on the spinning solution inlet, the steering board is arranged on the other side of the box and opposite to the spinning nozzle, and the conveying device is arranged on the bottom of the box; the equipment further comprises an air amplifier, the air amplifier is arranged between the steering board and the conveying device, and high-pressure air with a fiberbundle led out by the steering board enters from a compressed air inlet of the air amplifier. The invention further discloses a spinning method of the flash spinning equipment. The method comprises the following steps that a spinning solution is sprayed from the spinning nozzle to form the fiber bundle, by means of the air amplifier, secondary drafting is conducted on the fiber bundle, and even splitting is conducted to form a fiber web. According to the equipment and the method, by adopting the air amplifier to replace traditional electrostatic apparatus for fiber splitting, the effect thatthe equipment and the method are more energy-saving and safer is achieved, the diameters of obtained fibers are small, and the strength is high.

The invention relates to a power factor compensation type comprehensive energy-saving device of an air conditioner and the energy-saving device can carry out power factor compensation to the air conditioner and other inductive loads; in addition, the energy-saving device of the invention further has the functions of no-load automatic shutdown, low temperature limitation of the air conditioner and automatic temperature increase during no activity of the people or sleep, and each function thereof has the energy-saving effect for the air conditioner. The energy-saving device of the invention has very significant energy-saving effect for carrying out the comprehensive energy conservation to the air conditioner.

It is aimed to provide a control system which can automatically control air-conditioners and other devices according to the temperatures inside and outside the room, thereby keeping the interior temperature to a comfortable level. A top light T1, a ceiling fan T2 and an air-conditioner T3 are installed in or on a house 1. A controller C controls the interior temperature by performing computing, and selectively opening and closing the top light T1, selectively rotating the ceiling fan T2 in one or the opposite direction, and selectively activating and deactivating the air-conditioner T3, based on signals from a temperature sensor D1 provided at an upper portion of the room, a temperature sensor D2 provided at a lower portion of the room, and a temperature sensor D3 provided outside the room.

The invention relates to a bendable low-emission coated glass. A film structure of the bendable low-emission coated glass is as follows from glass substrate to outside: a glass substrate, a first dielectric layer, a low-emission layer, a second dielectric layer, and a protection layer. Compared with the prior art, the bendable low-emission coated glass of the invention utilizing chemical compatibility has excellent physical performance, flexible configuration, convenient control, higher deposition efficiency, and good bend resistance. Key performance indicators of the glass after being bent do not change. The glass has low emission. Visible light transmittance of laminated glass composed of the bendable low-emission coated glass is above 76%, and solar transmittance thereof is less than 48%; or the visible light transmittance is above 70% and the solar transmittance is less than 43%. The glass is suitable for the windshield glass of an automobile.

The invention provides an air open circle heat pump type drying wardrobe. The air open circle heat pump type drying wardrobe comprises a drying room, an equipment room and a heat pump drying system which is arranged in the equipment room; the drying room is separated from the equipment room through a separation plate with a ventilation opening; an air inlet channel and an air outlet channel which are independent of each other are formed in the equipment room; an air inlet of the air inlet channel and an air outlet of the air outlet channel communicated with the external air; an air outlet of the air inlet channel and an air inlet of the air outlet channel are communicated with the drying room; the heat pump drying system comprises a condenser and an evaporator; the condenser is located in the air inlet channel and the evaporator is located in the air outlet channel; the outside air enters the air inlet channel to obtain the dry air to be conveyed to the drying room after being headed through the condenser; the moist air in the drying room is discharged onto the evaporator and condensed through the evaporator to separate the moisture to be discharged out of the equipment room through the air outlet channel. According to the air open circle heat pump type drying wardrobe, the problem of the invalid operation of the traditional heat pump drying system in the falling-rate drying stage is solved, meanwhile the heat and humidity emission is reduced, and the energy-saving effect is achieved.

The invention discloses a window type ventilation and purification heat exchange device. The window type ventilation and purification heat exchange device comprises a shell and further comprises a control system. The control system comprises a controller. A fresh air inlet and an exhaust air outlet are formed in the outdoor side of the shell. A fresh air outlet and an exhaust air inlet are formed in the indoor side of the shell. A partition plate is installed in the shell and divides the interior of the shell into an air inlet channel and an air exhaust channel. A minitype air supply centrifugal fan and a combined multi-layer filter screen are installed in the air inlet channel. A temperature and humidity sensor and a particulate matter mass concentration sensor are arranged at the position, close to the fresh air outlet, in the air inlet channel. A minitype air exhaust centrifugal fan is installed in the air exhaust channel. One channel of a heat exchanger is communicated with the air inlet channel, and the other channel of the heat exchanger is communicated with the air exhaust channel. Due to adoption of the double-fan design, one centrifugal fan supplies air into a room, the other centrifugal fan exhausts air out of the room, and a certain energy conservation effect can be achieved.

The invention discloses a column and machine combined gas desulphurization process device which comprises desulphurization equipment and regenerative equipment. The desulphurization equipment comprises secondary desulphurization equipment comprising a packing absorbing column and a spiral-flow type supergravity desulphurization machine; sulfurous gas firstly enters the packing absorbing column for desulphurization, and then enters the spiral-flow type supergravity desulphurization machine for desulphurization firstly and then discharging; desulphurization solution enters the packing absorbing column and the spiral-flow type ultragravity desulphurization machine from tops for convection elution with the sulfurous gas, is discharged from the bottoms when the convection elution is finished, and then enters the regenerative equipment for regeneration; regenerative desulphurization solution is recycled; and waste fluid produced enters a subsequent salt extraction process for salt extraction treatment. The technology and the device can not only be suitable for gas with high hydrogen sulfide content, but also meet the index of the hydrogen sulfide content of desulfurated gas; sulfur foam is not produced during the desulphurization operation, and sulfur is not produced; the desulphurization equipment is efficient, and has light weight and low cost; and the desulphurization operation does not cause environment pollution and secondary pollution.

The invention discloses a method for preparing microcrystalline glass by using ceramic polishing brick sludge. The microcrystalline glass comprises the following components in percentage by weight: 55 to 70 percent of ceramic polishing brick sludge, 5 to 15 percent of quartz, 10 to 20 percent of calcium oxide, 3 to 10 percent of sodium carbonate, 1 to 10 percent of barium carbonate and 1 to 10 percent of zinc oxide. The preparation method comprises the following steps of: uniformly mixing the components, putting the mixture in a kiln furnace, heating the kiln furnace to 1,400+ / -50 DEG C, keeping the temperature for 1 to 3 hours, directly pouring the completely melted glass solution in water for water quenching to obtain glass particles, drying and screening the glass particles to obtain the glass particles, of which the particle size is 0.5 to 5 millimeters, drying the glass particles, spreading the dried glass particles over a mould, putting the mould in the kiln furnace for thermal treatment by a two-step method, and finally preparing the microcrystalline glass. In the method, by using the ceramic polishing brick sludge as a main raw material for preparing the CAS microcrystalline glass, the microcrystalline glass meeting the industry standards can be prepared, so that the wastes are recycled, the environment is protected and the cost advantage is achieved.

The invention provides a rapid carburizing heat treatment technology of a driving gear for an automobile differential mechanism. The rapid carburizing heat treatment technology comprises the following steps of 1, heating, 2, intensive carburization, 3, diffusion, 4, quenching, 5, cleaning and 6, tempering. According to the treatment technology, the carburizing period is obviously shortened, production efficiency is improved, the yield is increased, the energy-saving effect is achieved, the carburizing cost is obviously reduced, and economical benefits are significantly improved.

This invention relates to a rapid-curing thermosetting phenol formaldehyde resin, whose raw materials comprise: phenol formaldehyde resin solution 90.9-99.5 wt. % and urotropine 0.5-9.1 wt. %. The resin can be dried at a low temperature for producing glass fiber pre-soaking cloth. The pre-soaking cloth is resistant to damp and cohesion, and easy for usage. The pre-soaking cloth can be used to produce fishing rods, and the process has shorter curing time (from 3 h to 1-2.5 h), thus saving energy and using few molds. Since the addition of urotropine can reduce the water leakage, it can be directly increased to the drying temperature without a low temperature transition to obtain the pre-soaking cloth without bubbles or gel flow, or surface pores.

The infrared radiation-isolating film material for building glass consists of base layer and functional layer, the base layer is transparent medium film substrate material for improving the mechanical property of the film and the functional layer has thickness of 3-2000 nm and comprises one or more medium film with at least one layer of metal medium film or dielectric film. In the functional layer or base layer, there is titania, zirconium oxide or other strong ultraviolet absorbing medium to make the film possess some ultraviolet protecting capacity at the same time. The material may be madeto cover partial or whole ultraviolet area by means of regulating the nanoparticles zie. The material has high transparency to visible light, complete infrared radiation isolating function and high ultraviolet-proof function, and may be used to reach the functions of saving energy and protecting health.

The invention relates to a compound additive for limestone-gypsum wet-process flue gas desulfurization. The compound additive is prepared from the following components in percentage by mass: 25 percent to 50 percent of a limestone dissolving promoter, 20 percent to 60 percent of a pH (Potential of Hydrogen) buffering agent, 5 percent to 15 percent of a surfactant, 3 percent to 10 percent of an oxidization catalyst, 2 percent to 5 percent of a de-foaming agent and 2 percent to 10 percent of a correlated auxiliary agent. The compound additive provided by the invention combines the dual advantages of an inorganic additive and an organic additive of rapid effect, less use amount, long lasting time, less consumption and the like in a limestone-gypsum wet-process flue gas desulfurization system of a thermal power plant; the formula is simple and components have a low price and are easy to obtain; on the basis of not doing any engineering reconstruction, the absorption efficiency of SO2 can be greatly improved, the quality of gypsum can also be improved and the scaling and blocking of the system are reduced.