246results about How to "Play the role of energy saving and emission reduction" patented technology

The invention provides a compressed air energy storage and power generation integrated system based on wind and light complementation. The compressed air energy storage and power generation integrated system comprises a compressed air energy storage system part, a compressed heat storage system part, an expansion machine power generation system part and a solar heat storage system part; the compressed air energy storage system part comprises multiple stages of air compressors and an air storage tank; the compressed heat storage system part comprises cold tanks, hot tanks, first heat exchangers and second heat exchangers; the cold tanks are connected with the hot tanks through the first heat exchangers; and the hot tanks are connected with the cold tanks through the second heat exchangers. The compressed air energy storage and power generation integrated system further comprises a wind power generation system part; the wind power generation system part drives the air compressors to work, compressed air passes through the first heat exchangers, and then is stored in the air storage tank; the compressed air in the air storage tank is heated by the second heat exchangers and then high-temperature and high-pressure air is provided to expansion machines; and the solar heat storage system part provides heat to the air input to the expansion machines. The compressed air energy storage and power generation integrated system can utilize renewable energy sources, off-peak power is used in a peak period, and the functions of energy conservation and emission reduction are exerted.

The invention belongs to the technical field of building decoration and transportation, and discloses a light-weight and high-strength plastic steel sandwich board and its making method. The plastic steel sandwich board comprises two panels and a sandwich layer fixed between the two panels. The making method of the plastic steel sandwich board comprises the following steps: placing the sandwich layer between the two panels, and respectively bonding the two panels with the right and wrong surfaces of the sandwich layer through an adhesive to prepare the plastic steel sandwich board, wherein each of the panel is obtained through compounding one side of a continuous fiber reinforced thermoplastic plastic board with a non-woven fabric through hot-press molding. The plastic steel sandwich board has the advantages of light weight, high strength, heat insulation, fire resistance, moisture resistance, corrosion resistance and the like.

The invention relates to a light-weight and high-strength thermoplastic composite material sandwich board and a production method thereof. The light-weight and high-strength thermoplastic composite material sandwich board comprises two panels and a sandwich layer, wherein the sandwich layer is fixedly arranged between the two panels. The preparation method comprises the following steps: putting the sandwich layer between the two panels; and sticking the two panels on the front and rear faces of the sandwich layer by a thermoplastic glue film through a hot pressing process and a cold pressing process to produce the thermoplastic composite material sandwich board. The panels are continuous fiber enhanced thermoplastic composite material boards and the sandwich layer is made of a honeycomb aluminum material. Compared with the prior art, the thermoplastic composite material sandwich board has the advantages of light weight, high strength, heat preservation, fireproof prevention, moisture prevention, corrosion prevention and the like.

The invention relates to a method and a device for adhesion detection of a main contact of an alternating-current contactor to solve the problem that the main contact fails to disconnect in abnormality of the contactor. The device comprises an alternating-current contactor major loop, an alternating-current contactor control loop, an adhesion signal detection circuit and a master controller control circuit. The adhesion detection circuit takes signals from the lower end of the alternating-current contactor, an intermediate relay of the contactor control loop and an alternating-current contactor auxiliary contact. The adhesion detection circuit adopts passive output for outputting signals in an open-collector output mode, and the master controller control circuit takes a PLC (programmable logic controller) or MCU (micro controller unit) as the core and is capable of driving the intermediate relay to realize control of the alternating-current contactor and a forestage power source thereof. The device has the advantages of simple structure and stability and reliability in operation, various operating states of the alternating-current contactor can be detected in real time, fault signals are given out immediately once adhesion occurs, and the forestage power source is disconnected through the master controller to guarantee safety of field personnel and property.

The invention discloses a timing startup and shutdown method, a device and a system of an air conditioner. The method comprises the following steps: obtaining the startup and shutdown mode selected by the user and timing date, wherein the startup and shutdown mode comprises a plurality of startup time sections, the startup and shutdown mode is the preset startup and shutdown mode of a plurality of air conditioners; controlling the air conditioner for starting the startup and shutdown mode in the timing date. The startup and shutdown for the air conditioner is exactly controlled, the startup and shutdown control for the air conditioner is executed for many times during a period of time; the startup and shutdown of the air conditioner is exactly controlled for meeting the requirement for the user on the startup and shutdown of the air conditioner for reducing energy waste of the air conditioner.

The invention discloses an environment-friendly adhesive for quickly adhering aluminum alloy and PVC thin film and preparation and application thereof. The environment-friendly adhesive comprises the following components: 10 to 30 parts of urethane acrylate, 5 to 40 parts of epoxy acrylate, 10 to 30 parts of rubber, 5 to 15 parts of viscosifier, 20 to 60 parts of reactive diluent, 2 to 5 parts of glutinous rice flour, 0.2 to 1.5 parts of initiator and 0.2 to 1.0 part of curing agent. The environment-friendly adhesive has excellent adhesion performance on the aluminum alloy and PVC insulating thin film, has the adhesive force of the first level, and can be applied to high-temperature operating environment; and the cured adhesive film has higher softening point of over 80 DEG C. The mean value of the hardness of the cured adhesive film obtained by using the adhesive is between 70 and 75A; and the adhesive film cured has good hardness and toughness. The environment-friendly adhesive for quickly adhering aluminum alloy and PVC thin film and the preparation and application thereof have the advantages of simple preparation method, moderate cost, stable comprehensive performance of the obtained products, and great functions of energy conservation and emission reduction.

The invention relates to a wide-area reactive optimal running method for a power distribution network and belongs to the technical field of reactive compensation of the power distribution network of a power system. The method comprises the following steps: utilizing a computer and a program to input the basic data of the power distribution network and each reactive compensation device of the power distribution network; calculating a compensation scope and a prior level of each reactive compensation device; calculating a switching capacity of each reactive compensation device according to the compensation scope of each reactive compensation device and real-time measuring information of a root node and each compensation node of the power distribution network; and controlling each capacitor to switch. According to the method provided by the invention, the voltage reactive running condition of the whole power distribution network is fully considered; the use ratio of the compensation device is greatly increased; the power loss and voltage loss of the power distribution network are reduced; the voltage quality of the power distribution network is increased; the running of the electric equipment under a rated condition is ensured; and the social and economic benefits are obvious. The wide-area reactive optimal running method is widely applied to the voltage reactive optimal running and control of the power distribution network of the power system.

The invention relates to the technical field of floor heating control devices, and particularly relates a distributed electric heating intelligent control system based on the Internet of Things. The distributed electric heating intelligent control system comprises a heating cable, a relay, a digital temperature sensor, a human body infrared sensor, a microcontroller, an independent gateway, a cloud platform and a mobile phone or personal PC equipment, wherein the heating cable is used for supplying heat to a room; the relay is used for controlling the heating cable to operate; the digital temperature sensor is used for monitoring the information of environment temperature of an area; the human body infrared sensor is used for detecting the information whether personnel stay in the area; the microcontroller is used for collecting data information of the digital temperature sensor and the human body infrared sensor and receiving control instructions; the independent gateway is used for sending the collected data information and giving the control instructions; the cloud platform is composed of a cloud server and can be shared by the whole user group; and the mobile phone or personal PC equipment is used for information interaction with the cloud platform and real-time control over an electric heating system. The power cost of power peak time is effectively reduced, energy is automatically stored within power off-peak time at night, and the effects of energy conservation and emission reduction are preferably achieved.

The invention relates to a sand blasting accessory and a high-pressure slurry abrasive material jet injection system. The sand blasting accessory comprises a sand blasting accessory body, a high-pressure cylindrical water nozzle and a slurry abrasive material sucking stub pipe, wherein a cavity is formed in the sand blasting accessory body and comprises a first cavity and a second cavity; the first cavity is a cone-shaped cavity; the second cavity is a cylindrical cavity; the bottom surface of the cone-shaped cavity is communicated with one end of the cylindrical cavity; the high-pressure cylindrical water nozzle is fixed on the sand blasting accessory body at the other end of the cylindrical cavity, and is communicated with the cavity; the slurry abrasive material sucking stud pipe is arranged on the upper part of the sand blasting accessory body; and slurry abrasive materials jetted by the slurry abrasive material sucking stud pipe and high-pressure water jetted by the high-pressure cylindrical water nozzle are gathered at one end of the cylindrical cavity. By the structure, slurry and water are only required to be mixed at a high-pressure water outlet of the high-pressure slurry abrasive material jet injection system, so that abrasion of a high-pressure nozzle is reduced.

The invention discloses a heat recovery warming air intake and exhaust system which comprises an exhaust hood, an exhaust duct, an exhaust fan, an lampblack purifier, an exhaust outlet, a fresh air duct, an induced draft fan and a fresh air inlet, wherein both the exhaust outlet and the fresh air inlet are provided with radiators and the two radiators are connected with a circulation pipe through a circulation water pump. The heat recovery warming air intake and exhaust system is simple in structure and easy to clean, is capable of effectively utilizing abundant heat in the kitchen fumes in winter and applying the heat to the air heating of an air intake, so that the temperature of the cold air entering into the kitchen rises to ensure that the temperature in the kitchen does not fall rapidly due to the entrance of the cold air. Through using antifreeze liquid as a radiator medium, the whole system is effectively ensured to run normally in winter; a thermal insulation layer is arranged outside the pipes of the system, so that the energy loss is effectively prevented, the residual heat energy is fully utilized and the function of saving energy and reducing emission is provided.

The invention discloses an overlapped organic rankine cycle efficient heat machine which solves the problem that a single-stage organic rankine cycle expansion machine component is oversize in expansion ratio and achieves purposes of reducing expansion ratio through two-stage expansion, improving safety and durability of operation of an expansion machine and simultaneously improving efficiency of the heat machine. The organic rankine cycle efficient heat machine is mainly composed of a residue temperature heat source system (comprising renewable energy sources such as solar thermal power, various industrial waste heat, terrestrial heat, biomass energy, ocean thermal gradient and the like), a working medium pump, a cooling water system, a heat exchanger (respectively serving as an evaporator and a condenser on an evaporation side and a condensation side) and the expansion machine. The overlapped organic rankine cycle efficient heat machine is based on organic rankine cycle, uses the high-low-two-stage expansion machine, and uses superheated steam coming from the evaporator to drive the expansion machine to have expansion work to push a generator to generate electricity. Reclamation of energy is achieved on one hand, environmental protection can be favorably achieved on the other hand, and the overlapped organic rankine cycle efficient heat machine has good practical applicability and economical efficiency.

The invention provides a cement grinding aid. The cement grinding aid comprises raw materials as follows: triethanolamine, polyether polyol, sodium hydroxide, sodium thiosulfate and a biochemical waste liquid, wherein the biochemical waste liquid is one of or a mixture of a waste liquid produced during production of industrial sodium gluconate and a waste liquid produced during production of an industrial itaconic acid product. The cement grinding aid can optimize the cement grain composition, activate the early strength of cement, improve the powder grinding efficiency of the cement and reduce energy consumption.

The invention discloses corrosion-resistant high-strength light steel and a preparation method, and belongs to the technical field of alloy steel. The steel comprises the following chemical components of, in percentage by weight, 1.4wt%-1.7wt% of C, 25wt%-30wt% of Mn, 10wt%-12wt% of Al, 3wt%-5wt% of Cr, 0.05wt%-0.1wt% of Nb, less than or equal to 0.003wt% of S, less than or equal to 0.003wt% of P and the balance Fe and inevitable impurities. The preparation method comprises the following steps that a vacuum induction furnace is adopted for smelting, a cast ingot is manufactured through casting, and the cast ingot is homogenized for 10 hours-15 hours at the high temperature of 1100 DEG C-1200 DEG C; the cast ingot is subjected to homogenization treatment and then forged into a square billet; the forging stock is heated to 1180 DEG C-1200 DEG C, and the temperature is maintained for 2 hours-4 hours; 5 passes-8 passes of hot rolling are conducted on the homogenized forging stock, the forging stock is water-cooled to the room temperature, and the corrosion-resistant high-strength light steel is obtained; and the density of the steel is smaller than 6.5 g / cm < 3 >, the yield strength is 1000 MPa-1200 MPa, the tensile strength is 1100 MPa-1300 MPa, the ductility is larger than 20%, and the steel has corrosion resistance superior to that of common steel and has wide application potential in the fields of automobiles, ships, hydropower, wind power and the like.

The invention provides a blending and treating system for ventilation air methane and drainage methane in a coal mine. The blending and treating system comprises a ventilation air methane inducing cover (6), a ventilation air methane conveying pipeline (7a), a drainage methane connection pipeline (4), a mixer (M), a mixed gas conveying pipeline (7b), an induced draught fan (11) and a heat-accumulating type high-temperature oxidation apparatus (12). A gas outlet of the drainage methane connection pipeline (4) is communicated with the ventilation air methane conveying pipeline (7a), so the drainage methane is sucked into the ventilation air methane conveying pipeline (7a) from the drainage methane connection pipeline (4) and uniformly blended with the ventilation air methane in the ventilation air methane conveying pipeline (7a); and the obtained mixed methane is conveyed to the heat-accumulating type high-temperature oxidation apparatus (12) by the mixed gas conveying pipeline (7b) for oxidation treatment. The blending and treating system can realize safe acquisition, blending and conveying of the ventilation air methane and the drainage methane in the coal mine, provides a safe gas source for subsequent utilization projects like heat-accumulating type high-temperature oxidation and discharges thoroughly oxidized products into the atmospheric environment.

The invention provides a method and a device for removing carbon dioxide and hydrogen sulfide from methane by a water dissolving method. In the method, according to different solubility of various ingredients of the methane in water, carbon dioxide (CO2) and hydrogen sulfide (H2S) in the methane are dissolved in tap water by controlling pressure, liquid gas ratio and temperature of an absorption tower; and the water, in which the carbon dioxide and the hydrogen sulfide are dissolved, can be recycled through regeneration. The device is simple, convenient to operate, low in investment, and convenient in industrialized production; in particular, effect of removing CO2 and H2S is obviously improved through filling design in the absorption tower and use of a redistributor; and regeneration effect of the water is improved through use of a heat exchanger. In the methane treated by the device and the method, the methane content is obviously increased; the maximum of the methane content can reach 97 to 99 percent; and a heat value is obviously increased.

The invention provides an industrial furnace high-pressure inner-mixed type system for atomizing vegetable fat or bio-oil to be burned and a method thereof, and belongs to the technical field of energy sources and environments. The vegetable fat or the bio-oil which is filtered and dehydrated serves as an incendiary agent, the high-temperature air serves as an atomizing medium, the oil gas is conveyed into a high-pressure oil and gas mixing chamber of a burner through an automatic adjusting valve control device, a high-pressure blowing nozzle is inserted into a furnace combustion chamber from the periphery of an industrial furnace, the nozzle atomizes the oil gas into the combustion chamber of the industrial furnace to be burned in a corner tangential mode, hot air fed from other inlets supply sufficient oxygen, the problems that the vegetable fat and the bio-oil atomizing particles are large, incomplete in combustion, low in combustion efficiency and the like are solved, and the system has the advantages that the vegetable fat and the bio-oil atomizing particles are small, the atomizing quality is good, combustion is sufficient, the combustion efficiency is high, oil is saved, and low emission is achieved.

The invention relates to a particle damping and vibration reduction machine tool. The machine tool includes a machine tool structural part, a cavity (2) is arranged in the machine tool structural part, and damping particles (3) are sealed and filled in the cavity (2). The machine tool structural parts include a machine tool bed (1), a machine tool top beam (4), a machine tool column (5), a machine tool beam and a machine tool reinforcement beam. In the present invention, not only the steel plate welding technology is used to manufacture a large machine tool bed, but compared with the traditional casting processing technology, it has the advantages of relatively simple manufacturing process, short processing and manufacturing cycle, low cost, and saving metal materials; it can also significantly reduce the vibration of the machine tool amplitude, and has the advantages of small changes to the original structure and small additional mass, which not only ensures the machining accuracy of the machine tool, but also saves a lot of metal materials, reduces manufacturing costs, and plays the role of energy saving and emission reduction.

The invention discloses sewage treatment equipment applicable to living sewage treatment of multiple families. The sewage treatment equipment comprises an external tank, wherein an anaerobic zone, anaerobic zone, a settling zone, a sludge reduction zone and an equipment zone which are separated from one another are arranged inside the external tank; the anaerobic zone, the aerobic zone, the settling zone and the sludge reduction zone are sequentially communicated; the anaerobic zone is communicated with a septic tank; the aerobic zone is communicated with the anaerobic zone to flow back a part of a mixed liquid into the anaerobic zone; the settling zone is communicated with the anaerobic zone to flow back a part of activated sludge into the anaerobic zone; the sludge reduction zone is communicated with the anaerobic zone or the septic tank; a detection unit for detecting various parameters in the sewage treatment process and a controller for controlling working states of different sewage treatment devices of the sewage treatment equipment according to detection results of the detection unit are arranged in the equipment zone. The sewage treatment equipment is applicable to livingsewage treatment of multiple families, is stable in effluent quality, can be automatically adjusted, and plays roles of energy conservation and emission reduction.

The invention provides a green and energy-saving anti-dazzle system for a highway tunnel portal. The green and energy-saving anti-dazzle system comprises a structural canopy and a controller which are arranged outside the highway tunnel portal, wherein vehicles enter and leave a tunnel through the structural canopy; an anti-dazzle unit connected with the controller and used for adjusting the transmittance amount automatically according to ambient light brightness is arranged at the top of the structural canopy. According to the green and energy-saving anti-dazzle system for the highway tunnel portal, the transmittance amount of the tunnel portal can be adjusted automatically according to the ambient light brightness, the problem about inside and outside light transition when the vehicles travel in and out of the tunnel portal is solved, the visual impact of drastic brightness change on drivers is reduced, not only can the strengthened lighting brightness level of the tunnel portal section be reduced, but also the solar energy can be converted into electric energy to supply power to the system, meanwhile, power is also supplied to night lighting lamps of the tunnel portal, energy consumption of the tunnel engineering during operation is reduced greatly, and the functions of energy saving and emission reduction are realized.

The invention relates to an engine idle speed reduction oil saving method and device. The method comprises the steps that driving state information of a current vehicle, the rotation speed of an engine and current speed changing intention information of a driver are detected; whether the current vehicle is in an idle speed state or not is judged according to the driving state information and the rotation speed of the engine; and if yes, whether the rotation speed of the engine of the current vehicle is adjusted from the current first idle speed to a preset low idle speed or not is determined according to the speed changing intention information. The scheme can be achieved only by an electric control system of the engine, the production cost of the engine does not need to be additionally increased, the problem that as the starting performance of the vehicle is reduced, the user experience is reduced is avoided, and the functions of energy conservation and emission reduction can be achieved.

The invention relates to an adjustable damping feedback energy suspension system with a driving behavior prediction model and a control method of the adjustable damping feedback energy suspension system. A hydro-pneumatic spring comprises a hydro-pneumatic spring main body, a feedback energy mechanism and a damping force control mechanism. An electronic control unit is connected with the damping force control mechanism, a traffic environment data acquisition module and a driving behavior data acquisition module. The traffic environment data acquisition module is used for judging whether other vehicles exist around a self vehicle or not and collecting the distance between the self vehicle and the front vehicle, the distance between the self vehicle and the rear vehicle, speed information of the front vehicle and speed information of the rear vehicle. The driving behavior data acquisition module is used for acquiring the horizontal rotating angle of the head of a driver in the driving process, the treading stroke and the frequency of an accelerator pedal and the treading stroke and the frequency of a brake pedal. The damping force control mechanism is used for adjusting the damping coefficient of the hydro-pneumatic spring. The feedback energy mechanism is used for recycling vibration energy of the vehicle in the running process. Meanwhile, according to the driving behavior prediction model, a suspension can predict the driving behavior in advance and adjust performance parameters in time according to the traffic environment so that the driving smoothness and the operating stability can be improved.

The invention relates to a self-cleaning street lamp. The self-cleaning street lamp is characterized by comprising a lighting part, a supporting part and a cleaning part, wherein the lighting part is fixed on the supporting part; the cleaning part is built in the supporting part and connected with the lighting part; the lighting part comprises a glass lens, an LED bulb and a lampshade; the LED bulb is arranged in the lampshade; the glass lens is positioned at the lower end of the lampshade and forms a closed space together with the lampshade; and the lampshade is fixed on a lamp arm. According to the scheme, the self-cleaning street lamp has a favorable lighting field of vision and is high in lighting brightness. When the self-cleaning street lamp is used for daily lighting, real-time fixed-point self-cleaning can be realized, so that long-time cleanliness of the glass lens of the street lamp can be guaranteed, an optimal lighting effect is achieved, and the walking and driving safety of people can be strongly guaranteed.

The invention discloses a serrated twitch roller body, which comprises a cylindrical roller body and a covering body. The covering body is a stainless steel pressed part, arc-shaped ribs are uniformly distributed on the outer surface of the covering body, the upper ends of the arc-shaped ribs are arc structures, each two adjacent arc-shaped ribs are connected by a bottom transitional plate, drainage grooves are formed by the transitional plates and the bottoms of the arc-shaped ribs, and the covering body is covered on the cylindrical roller body by means of welding. The serrated twitch roller body is simple and reasonable in structure, problems of an existing twitch roller in the prior art are solved, the ribs are distributed on a cloth guide working face, the drainage grooves are formed at the lower ends of the ribs, contact with fabrics is reduced, abrasion of the fabrics is extremely low, an original surface washing mode is changed into a penetrating washing mode, a washing effect of the fabrics is improved, and effects of energy conservation and emission reduction are realized.

The invention discloses a controllable phase change material bag and a preparation method and an application thereof. The preparation method comprises the following steps of (1) performing surface treatment on a metal plate or bar so as to form the metal plate or bar with a rough surface, embedding seed crystal powder which is used for inducing phase change materials into a nucleus into the surface, then putting in a sodium acetate solution, putting the sodium acetate solution in a water bath, and insulating so as to obtain a controllable trigger metal electrode; (2) mixing sodium acetate trihydrate crystal, water and a thickening agent, heating in the water bath and mixing so as to completely dissolve, so that a supersaturated phase transition heat storage solution is obtained, pouring the solution into a stainless steel metal ball, inserting into the controllable trigger metal electrode in the step (1) and a conducting electrode, then packaging, finally, putting in the water bath, and insulating so as to obtain the controllable phase change material bag. According to the controllable phase change material bag, the inherent supercooling defect of inorganic phase change materials is used, so that the controllable heat storage / release of supercooling phase change materials is realized, and the controllable phase change material bag has the advantages of simple preparation process, low equipment cost, short recycling period, stability in heat release and the like.

The invention discloses an discharging device of a toilet bowl and belongs to the technical field of equipment for bathrooms. The discharging device comprises a valve base. The valve base is provided with an upper through hole and a low through hole which are through vertically. A valve element is arranged inside the valve base. The valve element is movably matched with the valve base in a radial-penetrating mode. A through hole is formed in the valve element. An discharging channel is formed when the upper through hole, the through hole and the lower through hole are communicated. A sealing assembly is arranged at the position of the upper through hole. The sealing assembly and the upper surface of the valve element form sealing. The discharging and flushing actions are linked by adopting a pure mechanical mechanism, the structure is compact, and use is convenient and easy; a high pressure water flushing toilet bowl is adopted directly, more water is saved, environmental protection is achieved better, the energy conservation and emission reduction effects are achieved better, the toilet bowl is not stained or plugged, and flushing is thorough and more sanitary; due to the arranged sealing assembly, the sealing performance is good, and it can be ensured that the toilet bowl does not stink; a pedal is supported by a pivot, no force is borne at the joint by adopting a middle cross bar, abrasion is small, the service life of the discharging device is long.

The invention discloses a decorative panel production line applying intelligent RGVs (Rail Guided Vehicle). A feeding RGV and a discharging RGV are correspondingly arranged at a feeding end and a discharging end of each of a plurality of sets of panel pressing equipment respectively; a transferring RGV and a transition conveying RGV are matched to work; a decorative panel product on the discharging RGV is conveyed to a panel airing production line to finish cooling work of the decorative panel product, and the decorative panel product is conveniently conveyed into a cabin for storage subsequently. The decorative panel production line is provided with a first photoelectric approach switch, a laser range finder, a control device and the like to automatically and coordinately control the conveying work of the feeding RGV, the discharging RGV, the transferring RGV and the transition conveying RGV. The RGVs are used for replacing a previous forklift working manner, and a plurality of sets of flexible production line products can be gathered on one conveyor line, so that a transportation route is optimized and the space of a factory is saved; the energy consumption is reduced, the utilization of non-renewable energy resources is reduced, no waste gas is emitted, and the effects of energy saving and emission reduction, and pollution reduction are realized.

The invention discloses a tail gas purifying device capable of generating electricity through automobile tail gas waste heat temperature difference. The tail gas purifying device comprises a purifierbox body, a three-way catalyst, a temperature difference electricity generating device, a filter device, an electric precipitation device, a pressure rising and releasing converter and a storage battery. The three-way catalyst is arranged inside the front end of the purifier box body. The temperature difference electricity generating device is arranged outside the purifier box body, is close to the three-way catalyst end and is connected with the storage battery through the pressure rising and releasing converter. The filter device is arranged in the purifier box body and located at the rear end of the temperature difference electricity generating device. The electric precipitation device is located at the rear end inside the purifier box body and connected with the storage battery. The tail gas purifier utilizes the automobile tail gas temperature difference to generate the electricity, the effects of energy saving and emission reduction are achieved, the tail gas utilization efficiency can be effectively improved, meanwhile, exhaust pollution can be reduced, and the environment can be improved.

The invention relates to the technical field of new energy resources and discloses a cart using a wind and hydrogen new energy resource power device. The cart comprises a base plate, wherein rolling wheels are movably installed at the bottom of the base plate, rolling shafts are inserted at the central positions of the rolling wheels, a placement groove is formed in the right end of the upper surface of the base plate, a hollow column is inserted into the placement groove, and a clamping device connected with the hollow column is fixedly installed in the inner cavity of the base plate. The cart using the wind and hydrogen new energy resource power device can produce electric energy when rotating blades rotate with wind through the rotating blades and a wind driven generator installed on the upper surface of the base plate, can convert the produced electric energy into new energy resource usable electricity to be stored in a hydrogen fuel battery through a water electrolysis hydrogen production device, a produced hydrogen fuel storage container tank and the hydrogen fuel battery, well plays energy-saving and emission reducing effects and is more convenient and quicker to use, and lots of manpower and material resources are saved through new energy resource power generation.

The invention discloses a large-temperature-difference steam exhaust waste heat recovery system of a coal-fired power plant heat supply head station. The large-temperature-difference steam exhaust waste heat recovery system is characterized by comprising a boiler, a steam turbine, a condenser, a waste heat recovery heat exchanger, a steam absorption type heat pump, a steam jet type heat pump, waste heat peak adjusting equipment and an absorption type heat exchange unit. The large-temperature-difference steam exhaust waste heat recovery system solves the problem that low-pressure steam exhaustwaste heat of a steam turbine is not sufficiently recycled at present.

The invention provides a mechanical step speed changer special for a harvester, which is low in oil consumption and simple and convenient for operation. The mechanical step speed changer comprises a manipulating unit and a gear speed change unit. The manipulating unit and the gear speed change unit are connected. The gear speed change unit comprises a power input shaft system, a middle shaft system and a power output shaft system arranged in parallel in sequence. The power input shaft system comprises a power input shaft and a speed-change combined gear assembled on the power input shaft. A power separator for cutting the power input during gear shaft operation is assembled at the input end of the power input shaft. The manipulating unit can drive the speed-change combined gear to axially slide along the power input shaft to realize engagement of corresponding gears among shaft systems. The middle shaft system comprises a middle shaft and a middle rack wheel and a middle pinion which are assembled on the middle shaft. The power output shaft system comprises a power output shaft and a high speed output gear, a back output gear and a low speed output gear which are assembled on the power output shaft. The back output gear on the power output shaft is always engaged with the middle pinion on the middle shaft.