32results about How to "Running energy saving and environmental protection" patented technology

The invention relates to a public wireless communication network-based intercom system, a registration and control method thereof. The intercom system comprises public communication terminals and private communication terminals accessing to a public wireless communication network respectively, wherein each public communication terminal consists of one or more management units and one or more door phones; each private communication terminal consists of one or more communication terminals of an indoor unit of each unit owner and / or a mobile phone and / or a PSTN public telephone network; and the management unit and the door phone are provided with registration information used for realizing communicating junction between each public communication terminal and each private communication terminal, and among the public communication terminals respectively. The intercom system has the advantages of low cost, maintenance-free system networks, flexible networking, rich functions of indoor unit type, convenient selection for the owner, convenient system upgrade, convenient introduction of a third-party service and the like.

The invention provides a national physique detection and movement management system and method. The system comprises a physique detection device and a background server, wherein a user identify recognizing device and a network connecting device are arranged on the physique detection device; the physique detection device recognizing the user identity is activated from a standby state to start physique detection and transfers the physique detection result to the background server; the background server manages and receives the physique detection result of the user and evaluates the physique condition of the user according to the physique detection result to generate a corresponding movement prescription. The system also comprises fitness equipment, starts to work from the standby state afterrecognizing the user identity, and can adjust the operating station automatically according to the movement prescription. The system and method provided by the invention achieve intelligentization ofnational physique detection and movement management, improves the detection and operation efficiencies, is convenient for users to participate and is suitable for being popularized and applied to indoor and outdoor sites such as schools, parks and communities.

The invention relates to an intelligent hydroelectric generation device. The hydroelectric generation device comprises a main body, a sump tank, a power generating mechanism, a flow control mechanism,a connecting pipe, a water turbine and a purifying mechanism. The power generating mechanism comprises a driving component and a power generating component, and the driving component comprises a water collecting box, a lever, a first connecting rod, a weight block and a runner. The purifying mechanism comprises a shell, a power component and a vibrating component, and the vibrating component comprises a vibrating wheel, a second spring, a connecting rod, a casing pipe and a purifier. By means of the intelligent hydroelectric generation device, the power generation mechanism can generate through rainwater collected by the sump tank, and the gravitational potential energy generated by falling of the rainwater can be converted into electric energy, so that power generation through rainwateris realized, the rainwater resources are fully utilized, and the power generation efficiency is improved. The purifying mechanism agitates the rainwater, so that make the rainwater and the purifier can be fully contacted, and the purification efficiency is improved. By means of these mechanisms, the rainwater is efficiently utilized, and the hydroelectric generation device is more practical.

The invention relates to a continuous production process of benzoic acid. The continuous production process comprises the following steps: (1) introducing toluene liquid and a catalyst; (2) introducing air, wherein the air reacts with the toluene liquid in the presence of a catalyst; (3) controlling temperature; and (4) discharging benzoic acid, and meanwhile, feeding through a feed opening of a reaction tower to realize continuous reaction. Devices used in the process include a reaction tower, a cooling device, an oil-water separator and an absorption tower, wherein a gas-liquid distribution stirrer is installed on the bottom of the reaction tower, two tubular heat exchangers are arranged at the middle part of the reaction tower, and a benzoic acid discharge opening in the upper part of the reaction tower is connected to a benzoic acid flash column. The continuous production process of benzoic acid and the device thereof provided by the invention can be used for improving the selectivity of the catalyst to the benzoic acid product, the gas-liquid mixing and heat exchange and realizing continuous production, thereby reducing the energy consumption in the process, continuously producing low-pressure vapor, improving the product quality and yield, decreasing by-products and reducing the production cost.

The invention discloses a microbial electrochemical reactor for fixing carbon dioxide in exhaust gas to generate organic products and simultaneously processing sewage and a method thereof. The microbial electrochemical reactor comprises a microbial electrogenesis room, a microbial synthesis room and a CO2 fixation room which are arranged successively. The microbial electrochemical reactor also comprises a cation exchange membrane arranged between the microbial electrogenesis room and the microbial synthesis room and an anion exchange membrane arranged between the microbial synthesis room and the CO2 fixation room. The microbial electrochemical reactor also comprises a microbial electrogenesis electrode, a microbial synthesis electrode and a Cu2O electrode which are correspondingly arranged inside the microbial electrogenesis room, the microbial synthesis room and the CO2 fixation room, wherein the microbial electrogenesis electrode and the microbial synthesis electrode form a circuit, and the microbial electrogenesis electrode and the Cu2O electrode form a circuit. The microbial electrochemical reactor also comprises an air pump connected to the CO2 fixation room and a pH online regulation device. According to the invention, carbon dioxide in industrial exhaust gas can be fixed to generate isobutanol and 3-methyl-1-butanol while sewage is degraded.

An environment-friendly and energy-saving air conditioner system arranged on a fresh air ventilator comprises a fresh air ventilator shell; the fresh air ventilator shell comprises a fresh air chamber, a return air chamber, an air supply chamber, an air exhaust chamber and a heat exchange chamber; a total heat exchanger is arranged inside the heat exchange chamber; the fresh air chamber and the air supply chamber are connected through the total heat exchanger; the return air chamber and the air exhaust chamber are connected through the total heat exchanger; an air supply fan is arranged inside the air supply chamber; an evaporator is arranged on the lower side of the air supply fan; an air exhaust fan is arranged inside the air exhaust chamber; a condenser is arranged on the lower side of the air exhaust fan; a compressor is arranged on one side of the air exhaust fan; and the evaporator, the condenser and the compressor are connected through pipelines. The air conditioner and fresh air machine functions are organically combined into a whole, the system saves more energy and is more environmentally friendly during operation, and indoor adjustment is more comfortable.

The invention discloses a full-automatic assembling machine for a small American hose clamp. The full-automatic assembling machine for the small American hose clamp comprises a lower machine frame, arotating platform, a plurality of assembling stations, a steel ring feeding plate, a base feeding plate, an adjusting screw feeding plate, three feeding mechanisms, a discharging mechanism, a base riveting mechanism and a control mechanism. The rotating platform is rotationally installed at the center of the upper surface of a lower machine frame. A drive mechanism driving the rotating platform torotate is arranged below the rotating platform. A plurality of assembly stations are fixedly connected along the edge of the rotating platform. The angles formed by every two adjacent assembly stations and the center of the rotating platform are identical. The three feeding mechanism correspond to the base feeding plate, the adjusting screw feeding plate and the steel ring feeding plate correspondingly and are installed on the lower machine frame around the rotating platform. By the adoption of the technical scheme, the full-automatic assembling machine for the small American hose clamp effectively improves the automation degree of production of the small American hose clamp, reduces labor needed during production and greatly improves the yield. In addition, an air source is used as a power source, better energy conservation and environment protection are achieved during equipment operation, and the safety is higher.

The invention relates to an independent photovoltaic intelligent curtain system which comprises a solar assembly, a solar charging management module, a storage battery module, a main control module, a curtain motor module and a shading curtain, wherein the solar assembly is connected with the solar charging management module, the storage battery module is connected with the main control module, the curtain motor module and the solar charging management module, the curtain motor module is further connected with the shading curtain, and the main control module is further connected with the curtain motor module. The independent photovoltaic intelligent curtain system can solve the problem that a current electric curtain highly depends on a reserved power supply, has the advantages of being easy and convenient to install, easy to maintain, stable in operation, energy-saving and environment-friendly, and can be widely applied to the field of home decoration of intelligent curtains.

The invention relates to the technical field of valves, and discloses an anti-blocking sewage pipe valve based on a water pressure effect. The anti-blocking sewage pipe valve comprises a shell, dredging grooves are formed in the upper wall and the lower wall of the shell, U-shaped rods are rotatably connected to the bottoms of inner cavities of the dredging grooves, the U-shaped rods are movably connected with dredging rods in a sleeve mode, the upper portions of the dredging grooves are rotationally connected with transmission toothed rods extending to the dredging rods, water pressure grooves are formed in the positions, on the right sides of the dredging grooves, of the side wall of the shell, and the upper portions of inner cavities of the water pressure grooves are fixedly connected with buffer seats. According to the anti-blocking sewage pipe valve based on the water pressure effect, an inner cavity of the shell is blocked by dirt, the pressure from a water body on a sealing disc is increased, the sealing disc is pressed, displaced and deflected, an adjusting ball valve rotates to cause water flow to impact a worm gear, then a corresponding dredging rod is driven to do annular fluctuating motion for dredging, and therefore, equipment operation is energy-saving and environment-friendly, the burden on manual operation is relieved, and a pipeline dredging effect is effectively improved.

The invention belongs to the technical field of cleaning equipment, and particularly relates to a diffuser, an air supply device and a dust collector. The diffuser comprises a base ring piece and multiple rows of stationary blades, wherein all the rows of stationary blades are sequentially arranged on the outer ring wall of the base ring piece in the axial direction of the base ring piece, and the stationary blades are all arranged in the circumferential direction of the base ring piece. The two opposite sides of the base ring piece in the axial direction of the base ring piece are the air inlet side and the air outlet side correspondingly, and from the air inlet side to the air outlet side, the chord length of any one row of stationary blades is larger than or equal to the chord length of the next row of stationary blades adjacent to the row of stationary blades. The stationary blades are provided with installation angles, and from the air inlet side to the air outlet side, the installation angles of any one row of stationary blades are smaller than or equal to the installation angles of the next row of stationary blades adjacent to the row of stator blades. Therefore, the multiple rows of stationary blades can weaken the flow separation phenomenon generated by the airflow step by step, and the flow loss generated when the airflow flows through the diffuser is obviously reduced. In this way, under the guide action of each row of stationary blades, speed reduction and pressurization of the air flow can be smoothly realized on the premise of not generating large flow loss.

The invention discloses a novel device for efficiently purifying medical waste incineration flue gas through cooperation of plasma and activated carbon. The device is composed of four dielectric barrier discharge reactors (containing a certain mass of activated carbon), a plasma generation device, a flat plate and a rotating wheel. The reactors are fixedly mounted in the flat plate and the rotating wheel. Each reactor is respectively provided with a gas inlet and a gas outlet. The plasma generation device is connected with an external fixing piece, and the external fixing piece is fixedly mounted on an upper dielectric plate and a lower dielectric plate respectively. The upper dielectric plate is connected to a high-frequency power supply through a high-voltage electrode. The lower dielectric plate is connected to a ground wire through a high-voltage electrode, and the upper and lower dielectric plates are loaded on the two sides of one reactor and clamped between the reactors. According to the system, a large amount of medical waste incineration flue gas is effectively prevented from being discharged into the environment without treatment, and the ecological environment pressure is relieved; and the device is simple in structure, scientific and reasonable in design, few in modules and easy to implement.

The invention discloses a normal-pressure single-effect evaporator of a heat pump and a use method of the evaporator. The bottom of one side of a heat pump unit is connected with a hot water supply pipe. The end, away from the heat pump unit, of the hot water supply pipe is connected with a hot water buffering tank. The top of one side of the heat pump unit is connected with a hot water inlet pipe. Through the heat pump unit, a coiled pipe heat exchanger, the hot water supply pipe, a hot water circulating pump, the hot water buffering tank, a hot water pipe valve, the hot water inlet pipe, a cold water supply pipe, a cold water circulating pump, a cold water pipe valve, a cold water buffering tank and a cooling water inlet pipe, hot water and cold water can be generated for heating an evaporated raw material and condensing exhausted gas, so the system is a low-temperature evaporator at a normal-pressure state, no pressurizing or vacuumizing is involved, and the operation of the systemis more stable; and meanwhile, since the interior of the whole system is at a normal-pressure state, emptying and deslagging can be performed on an evaporation tower at any time by people, and nozzlesin the evaporation tower can be cleaned or replaced at any time.

The invention discloses a vane-shaped scramjet engine which comprises vanes and a scramjet engine body. Vane roots of the vanes are mounted and fixed in vane root notches in a spindle, and the scramjet engine body is arranged in the vanes; each vane is provided with an air intake pipe, an oil inlet pipe and a spark plug lead; each vane root is provided with a vane root air intake pipe hole and a vane root oil inlet pipe hole; the vane root notches are arranged on the vane spindle, each vane root notch is provided with a vane spindle air intake pipe hole and a vane spindle oil inlet pipe hole, a vane spindle center hole is arranged in the vane spindle, and a rotating shaft is arranged in the vane spindle center hole. The vane-shaped scramjet engine has the advantages that a method for producing needed power at different positions of the vanes can be designed on the scramjet engine on the vanes as required; the vane-shaped scramjet engine is safe and reliable, efficient in processing and manufacturing, energy saving and environment friendly in long-term running of equipment, convenient to maintain and the like.

The invention provides a central air-conditioning optimization operation and maintenance system. The central air-conditioning optimization operation and maintenance system is characterized by comprising an information management server unit, a sensing equipment unit, an optimized operational expert analysis library unit and an operation maintenance unit. According to the central air-conditioning optimization operation and maintenance system, the system collects the temperature, the humidity, the flow quantity, the pressure, the energy consumption, the water quality, valve opening and closing and other sensing data information, meanwhile, central air-conditioning system optimization management is realized through expert analysis and operation and maintenance scheduling functions equipped with software, the optimized operational expert analysis library unit can provide professional advices for central air-conditioning system optimization operation state management at any time, meanwhile,an optimized operational expert analysis library can expand the expert experience at any time to make the system have the characteristic of learning and updating continuously, and the operation maintenance unit responds to operation and maintenance scheduling actions of the optimized operational expert analysis library quickly and accurately by integrating and managing resources of relevant unitsof machine room shift teams, maintenance company teams, equipment part manufacturers and the like to make the whole central air-conditioning system achieve an energy-saving and environmental-protection clean operation state.

The invention discloses a household energy-saving membrane filter water purifier comprising a main body casing, wherein the outer surface of the upper end of the main body casing is fixedly provided with a water outlet, the outer surface of the front end of the main body casing is provided with a blocking cover, the outer surface of the front end of the blocking cover is fixedly provided with a handle, a hinge is arranged between the blocking cover and the main body casing, the blocking cover is movably connected to the main body casing through the hinge, and the outer surface of the upper endof the blocking cover is fixedly provided with a sealing strip. The household energy-saving membrane filter water purifier is provided with the blocking cover, a pollution storage container, a suction cup and a 2# filter membrane. Firstly, the water purifier can be operated without being energized, is more energy-saving and environmentally friendly, and facilitates a user to replace the filter membrane in the water purifier, stains can be stored and are easy to clean, the water purifier can be more stably placed on a contact surface, and the household energy-saving membrane filter water purifier can purify water resources more efficiently, and brings a good use prospect.

The invention relates to the field of aeronautical engineering dynamics, and discloses a modular closed low-speed DC wind tunnel, which includes a tunnel structure and a power system. The tunnel structure includes a tunnel bracket, and the tunnel bracket is sequentially provided with an air intake section and a test section. and the expansion section; the power system includes the fan, the mobile slide rail and the power support; the hole structure and the power system are connected through the mobile slide rail; the two sides of the outer wall of the fan are respectively welded with the fan connection lugs, and the fan connection lugs are connected to the mobile slide. The rail bolts are connected; the upper surface and the lower surface of the moving slide rail are respectively provided with several through holes, and the moving slide rail is connected with the power support. The overall structure of the present invention has the characteristics of modularization, reliable and stable performance, very convenient and quick operation, high practicability and adaptability, both the cave structure and the power system adopt independent movable brackets, which are light in weight; the operation vibration is small, the noise is low, The cave wall adopts a streamlined design that meets aerodynamic requirements, and the overall operation is more energy-saving and environmentally friendly.

A water source heating station is used for heating aquaculture water and comprises a water source evaporator. The water source evaporator is provided with a liquid inlet end and a liquid outlet end, a gas and liquid separator, a compressor, a water source condenser, a liquid storage device and an expansion valve are sequentially arranged between the liquid outlet end and the liquid inlet end, refrigerating liquid circulation is formed integrally, a first water inlet and a first water outlet are arranged on the water source condenser, a second water inlet and a second water outlet are arranged on the water source evaporator, the first water inlet and the first water outlet are connected with the aquaculture water, the second water inlet and the second water outlet are connected with an external water source, the external water source flows to the evaporator, refrigerating liquid in a coil tube of the evaporator is evaporated to absorb heat from the external water source, after absorbing heat, the refrigerating liquid continues flowing to the water source condenser to heat the aquaculture water, the aquaculture water can be continuously heated through the circulation so as to meet the requirement on water temperature of the aquaculture water, and the water source heating station is high in energy efficiency ratio and is energy-saving and environment-friendly during running.

The invention relates to the technical field of instruments, and discloses a precise instrument storage moisture-proof device based on pressing operation. The device comprises a shell, the upper end of the shell is slidably sleeved with a pressing plate, an abutting column is fixedly connected between the pressing plate and the shell, and an inner cavity of the pressing plate is slidably connected with symmetrical sliding blocks. Supporting rods are movably connected between the sliding blocks and the inner wall of the shell, symmetrical guide connection blocks are slidably connected to the top of an inner cavity of the shell, and push rods are movably connected between the guide connection blocks and the sliding blocks. According to the precise instrument storage moisture-proof device based on pressing operation, a pressing plate is pressed downwards, so that a supporting rod drives a sliding rod, a wedge-shaped column drives an adjusting rod to open a sealing plate, an air exchange channel is opened, and during the period, a guide connection block is matched to drive a rack to control a rotating gear to make an air exchange head swing back and forth; therefore, the practicability and the operation convenience of the equipment are effectively improved, the equipment is more energy-saving and environment-friendly in operation, and the moisture removal capacity is improved.

A chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler comprises a furnace, an upper chain grate drum and a lower chain grate drum. A pre-heating burning closed arc-shaped arch, a pre-heating burning net-shaped arc-shaped arch wall, a high-temperature radiation burning arc-shaped arch wall, a high-temperature radiation burning closed top arch connected with the tops of the pre-heating burning net-shaped arc-shaped arch wall and the high-temperature radiation burning arc-shaped arch wall, an arc-shaped smoke return arch and a convection residue-depending burning arc-shaped hearth are sequentially arranged in the furnace from the front. A smoke-return high-radiation inclined elongated heated arch is arranged on the upper portion of the convection residue-depending burning arc-shaped hearth. The upper drum and the lower drum are arranged on the back of the furnace and are connected by a heated pipe beam. Heated water-cooling wall pipes are distributed on two sides of the furnace, and the upper ends and the lower ends thereof are respectively connected with an upper heated water circulating pipe and a lower heated water circulating pipe connected with the upper drum and the lower drum. A high-radiation heated pipe is arranged below the high-radiation heated arch and connected with the lower drum. The chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler can burn gas and tar sufficiently and overcome the difficulty of blocking of a flue and the pipe beam, and is safe, reliable, energy-saving, environment-friendly and long in service life.

The invention discloses a heat pump normal-pressure single-effect evaporator and its use method. A water supply pipe is connected at the bottom of one side of the heat pump unit, and the end of the water supply pipe far away from the heat pump unit is connected to a hot water buffer tank. The hot water inlet pipe is connected to the top position of one side of the heat pump unit. Pipe, cold water supply pipe, cold water circulation pump, cold water pipe valve, cold water buffer tank and cooling water inlet pipe can generate hot water and cold water to heat the evaporation raw material and condense the exhaust gas, so that the system is under normal pressure. The low-temperature evaporator does not involve pressurization and vacuuming, which makes the operation of the system more stable. At the same time, because the whole system is in a normal pressure state, people can empty and slag the evaporation tower at any time, and can also clean the nozzles in the tower at any time. Clean or replace.

The invention belongs to the technical field of hot-water boilers and particularly relates to a multifunctional fuel energy-saving hot-water steam boiler. The problem that a traditional coal-fired boiler does not adapt to novel fuel is solved. The multifunctional fuel energy-saving hot-water steam boiler comprises a support. An inclined boiler body is arranged on the support. A hearth, a water chamber, a primary heat exchange chamber and a secondary heat exchange chamber are arranged inside the boiler body. A water inlet, a water return opening, a condensate water draining outlet and a sewage draining outlet are formed in the water chamber. The hearth is connected with the primary heat exchange chamber. The primary heat exchange chamber is connected with the secondary heat exchange chamber through a gas return pipe. The secondary heat exchange chamber is connected with an air preheating chamber. According to the multifunctional fuel energy-saving hot-water steam boiler, clean fuel such as coal gas, natural gas, fuel oil, methyl alcohol and alcohol groups can be burnt, the burning efficiency is brought into full play, the 100-percent complete combustion is achieved, drainage is thorough and no pollution is caused.

The invention relates to a continuous production process of benzoic acid. The continuous production process comprises the following steps: (1) introducing toluene liquid and a catalyst; (2) introducing air, wherein the air reacts with the toluene liquid in the presence of a catalyst; (3) controlling temperature; and (4) discharging benzoic acid, and meanwhile, feeding through a feed opening of a reaction tower to realize continuous reaction. Devices used in the process include a reaction tower, a cooling device, an oil-water separator and an absorption tower, wherein a gas-liquid distribution stirrer is installed on the bottom of the reaction tower, two tubular heat exchangers are arranged at the middle part of the reaction tower, and a benzoic acid discharge opening in the upper part of the reaction tower is connected to a benzoic acid flash column. The continuous production process of benzoic acid and the device thereof provided by the invention can be used for improving the selectivity of the catalyst to the benzoic acid product, the gas-liquid mixing and heat exchange and realizing continuous production, thereby reducing the energy consumption in the process, continuously producing low-pressure vapor, improving the product quality and yield, decreasing by-products and reducing the production cost.

The invention provides a transmission track for automatic camera shooting. The transmission track for automatic camera shooting comprises a track supporting seat, a bottom mounting plate, a protrudingpart and a track; the bottom mounting plate is fixed at the top of the track supporting seat; the protruding part is arranged on one side of the top of the bottom mounting plate, and a mounting groove is formed in the protruding part; and the track is arranged at the top of the base and located on the left side of the protruding part. The transmission track for automatic camera shooting has the advantages that a moving assembly is arranged to drive a sliding part to move so as to drive camera shooting equipment to move, the camera shooting equipment moves more stably at a constant speed, a motor rotates and drives a fan to rotate at the same time, the motor can be cooled, the service life of the motor is prolonged, a photographer can be cooled, the work environment can be more comfortable, the motor rotates to drive the camera shooting equipment to move and simultaneously drive the fan to rotate, and one driver drives two systems to operate, so that the operation is more environment-friendly and energy-saving.

The invention discloses a microbial electrochemical reactor for fixing carbon dioxide in exhaust gas to generate organic products and simultaneously processing sewage and a method thereof. The microbial electrochemical reactor comprises a microbial electrogenesis room, a microbial synthesis room and a CO2 fixation room which are arranged successively. The microbial electrochemical reactor also comprises a cation exchange membrane arranged between the microbial electrogenesis room and the microbial synthesis room and an anion exchange membrane arranged between the microbial synthesis room and the CO2 fixation room. The microbial electrochemical reactor also comprises a microbial electrogenesis electrode, a microbial synthesis electrode and a Cu2O electrode which are correspondingly arranged inside the microbial electrogenesis room, the microbial synthesis room and the CO2 fixation room, wherein the microbial electrogenesis electrode and the microbial synthesis electrode form a circuit, and the microbial electrogenesis electrode and the Cu2O electrode form a circuit. The microbial electrochemical reactor also comprises an air pump connected to the CO2 fixation room and a pH online regulation device. According to the invention, carbon dioxide in industrial exhaust gas can be fixed to generate isobutanol and 3-methyl-1-butanol while sewage is degraded.

The invention discloses an efficient energy-saving and environment-friendly road garbage cleaning vehicle, and relates to the technical field of road garbage cleaning. The efficient energy-saving and environment-friendly road garbage cleaning vehicle comprises a vehicle head, a vehicle frame and wheels, the bottom of the vehicle head is fixedly connected with the vehicle frame, the wheels are fixedly installed at the bottom of the vehicle frame, the bottom of the vehicle frame is fixedly connected with a sweeping device, and the sweeping device comprises a fixing plate. By adopting a fixed plate, a second motor, a screw rod, a rotary table, a dustproof box, a third motor, a brush disc, a dust removal brush and a moving block, the second motor rotates and drives the screw rod to rotate, so that the moving block moves on the screw rod, and then the third motor drives the dust removal brush to rotate, so that dust on a road is quickly cleaned. The problem that an existing sweeping device is fixed to the bottom of a cleaning vehicle, only part of garbage on a road can be cleaned, and consequently the working efficiency of the sweeping device is low is solved, the dust cleaning range of the dust removal brush is widened, and the working efficiency of the sweeping device is improved.

The invention belongs to the technical field of winding devices, and in particular relates to a heating system and a heating method for a dual-head hollow coil winding device. According to the invention, the technical problems in the prior art, such as a poor heating effect, are solved. The heating system for a dual-head hollow coil winder comprises: a rotary preheating mechanism and a preheating apparatus, wherein when one end of a coiled wire rotates circumferentially around a winding jig and therefore the coiled wire is coiled on the winding jig, the rotary preheating mechanism can perform real-time heating on the coiled wire that is continuously coiled on the winding jig; and when the winding jig continuously coils the other end of the coiled wire and therefore the coiled wire is coiled on the winding jig, the preheating apparatus can perform real-time heating on the coiled wire that is continuously coiled on the winding jig. The system further comprises a heating apparatus that can perform heating on the coiled wire that is coiled on the winding jig. The heating method for the dual-head hollow coil comprises: driving rotary preheating. The system and the method have the advantage of a favorable heating effect.

The invention discloses a combined artificial wetland based on solar oxygenating intermittent aeration. The combined artificial wetland comprises an upstream vertical flow artificial wetland and a downstream vertical flow artificial wetland which are communicated with each other through a siphonage pipeline, wherein a wall body is arranged around the artificial wetland; sampling openings are formed in one side of the wall body at equal intervals, and a gravel layer, a volcanic layer, a mixed substrate layer and a grit layer are sequentially arranged in each of the sampling openings from bottom to top; emergent aquatic plants are planted in the mixed substrate layer; a solar battery panel is arranged on the top of the wall body of the artificial wetland through a bracket which is connected with an aerating pump, the air outlet of the aerating pump is connected with one end of an aerating pipe while the other end of the aerating pipe penetrates through the wall body and is arranged in the volcanic layer, and a gate valve and a gas flowmeter for controlling the aerating quantity are arranged on the aerating pipe. The artificial wetland disclosed by the invention by way of intermittent aeration is high in decontamination capability and has the advantages of being energy-saving, environmentally friendly, high in sewage purifying capacity, cost-lowering, high in efficiency and the like.

The invention belongs to the technical field of cleaning equipment, and particularly relates to a diffuser, an air supply device and a dust collector. The diffuser comprises a base, a first row of stationary blades and a second row of stationary blades, the base comprises a cylindrical part and a circular truncated cone part, the circular truncated cone part is provided with a large opening end and a small opening end, and the large opening end is in butt joint with the axial end of the cylindrical part; and the first row of stationary blades are arranged on the outer ring wall of the circular truncated cone part and distributed in the circumferential direction of the circular truncated cone part, and the second row of stationary blades are arranged on the outer ring wall of the cylindrical part and distributed in the circumferential direction of the cylindrical part. The configuration of the circular truncated cone part enables the contour molded line of the base to meet good fitting of the airflow flowing direction, the airflow flowing smoothness is improved, the flowing separation phenomenon formed near the outer ring wall of the circular truncated cone part or the cylindrical part when airflow flows through the first row of stationary blades and the second row of stationary blades is remarkably reduced, therefore, the flow loss of the airflow flowing through the diffuser is effectively reduced, and the performance of the diffuser for decelerating and pressurizing the airflow is improved.

The invention discloses a fuel gas mixer of an engine and a hot-pressing installation method of cam structures. The fuel gas mixer comprises a shell (6), a pressing cover (2) and a throttle valve plunger assembly; the throttle valve plunger assembly comprises a throttle valve plunger (10), left and right guide columns (12) and an oil needle (4), the throttle valve plunger (10) is provided with a plunger air hole (14) and forms a rotary valve with a venturi pipe (3), the oil needle (4) is fixed to the throttle valve plunger (10), and the left and right guide columns (12) are symmetrically fixed to the two sides of the throttle valve plunger (10); the shell (6) is fixedly provided with the cam structures (13), the left and right guide columns (12) are arranged on the cam structures (13), and springs (11) are arranged between the throttle valve plunger (10) and the pressing cover (2); the shell (6) is fixedly provided with a main spraying pipe (5), the main spraying pipe (5) extends into a plunger throat (18) of the throttle valve plunger (10), and a pointer valve of the oil needle (4) and the main spraying pipe (5) are matched for forming a fuel gas valve. According to the structure, the fuel gas mixer has the advantages that the structure is simple and reasonable, the operation is stable, use is safe, the noise is low, the air-fuel ratio is good, the low-temperature starting performance is good, and the environment protection performance is good.