609results about How to "Guarantee air quality" patented technology

The invention discloses an intake and exhaust system of a turbine engine. The intake and exhaust system of the turbine engine comprises an intake system and an exhaust system, wherein the intake system is connected with an intake port of the turbine engine, the exhaust system is connected with an exhaust port of the turbine engine, the intake system comprises an intake filter and an intake pipeline, the intake filter is connected with the intake pipeline, the intake filter adopts a V-shaped structure, and a rain shielding cap is arranged at the exhaust tail end of the exhaust system. The intake and exhaust system of the turbine engine has the beneficial effects that the air inlet area is large, the air inlet flow speed is lower, the service life of an air filter is long, the rain shieldingcap additionally arranged at the exhaust port avoids the rainwater deposition in an exhaust silencer, the condition that rainwater possibly flows backwards is avoided and damages the turbine engine,and an opening of the rain shielding cap is away from the intake port, so that exhausted waste gas is prevented from being sucked by the intake port, and the quality of inlet air is ensured.

The invention discloses a heat pipe composite air conditioning unit for a machine room and a control method of the heat pipe composite air conditioning unit. The heat pipe composite air conditioning unit is characterized in that a heat pipe module and a refrigerating module are combined to form a cold source system in the air conditioning unit, the refrigerating module consists of a compression unit, a condenser, a throttling mechanism, an evaporation channel of an evaporation condenser and the like which form a first working medium circulating loop, the heat pipe module consists of an indoor heat exchanger, a main electromagnetic valve, an air-cooling heat exchanger, a condensation channel of the evaporation condenser, a liquid storage device, a liquid pump and the like which form a second working medium main loop, a bypass branch is arranged between an outlet of the indoor heat exchanger and an inlet of the condensation channel of the evaporation condenser, and a bypass electromagnetic valve is disposed in the bypass branch. A wide annular temperature zone is divided into three functional zones including a refrigerating zone, a composite zone and a heat pipe zone, and working modes of running refrigerating circulation, composite circulation and heat pipe circulation are correspondingly switched and run by the cold source system according to the different functional zones. By the aid of the heat pipe composite air conditioning unit and the control method thereof, utilization of outdoor natural cold sources can be maximized, and low-cost running and energy conservation can be realized.

The invention discloses a sock production device. The sock production device comprises a rack, a feeding device, a waste material recovery device, a sewing box, a discharging device and a sock turning device, wherein the feeding device comprises a guide rail, a guiding frame, a guiding box, a feeding box and a first electric motor component; the waste material recovery device comprises a negative air pressure pumping device and a pipeline, the negative air pressure pumping device is arranged on the rack, and one end of the pipeline is connected to the negative air pressure pumping device; the sewing box is fixedly arranged on the rack and is sequentially and fixedly provided with a first sewing head and a second sewing head from left to right; the right end of the rack is fixedly provided with the discharging device, the discharging device is provided with a discharging guide rail, the lower part of the discharging guide rail is provided with a sock guiding pipe, and the sock guiding pipe is provided with the sock turning device. According to the sock production device disclosed by the invention, socks can be automatically turned after the socks are sewed when a seam of a sock point is completely sewed, meanwhile, the situation that waster materials which are generated by the first sewing head, the second sewing head and a sock point cutting mechanism can be collected is realized, the automation degree is high, the working efficiency is increased, and the labor cost is reduced.

The invention discloses an automobile environment-friendly air conditioning system based on PM2.5 (Particulate Matter) monitoring, comprising a vehicular air conditioner body, wherein the vehicular air conditioner body comprises an air blower and a circulating air gate. The vehicular environment-friendly air conditioning system is characterized by further comprising a PM2.5 sensor and a control unit, wherein the control unit is connected with the air blower and is used for controlling the air quantity of the air blower; the control unit is connected with the circulating air gate and is used for controlling the circulating air gate to switch between inner circulation and outer circulation; the PM2.5 sensor is arranged on an air conditioner gas flow line; the control unit is connected with the PM2.5 sensor. According to the automobile environment-friendly air conditioning system based on PM2.5 monitoring, when the circulating air gate is in the outer circulation and the PM2.5 sensor monitors that PM2.5 is higher than a set value, the control unit controls the circulating air gate to switch into the inner circulation from the outer circulation, so that air pollution source is cut off, and the control unit controls a speed regulating module to increase the air quantity of the air blower, therefore in-vehicle air is circulated, and an air purification purpose is achieved.

The invention discloses an indoor air quality intelligent control system, which comprises a fresh air unit, a circulation unit and a mixing unit, wherein the fresh air unit is provided with a first fresh air fan, an auxiliary heater, a fresh air filter and a second fresh air fan, the circulation unit is provided with a circulation air filter and a circulation fan, the mixing unit is used for realizing the mixing of outdoor fresh air and indoor circulation air, electromagnetic purification modules are respectively arranged in the fresh air filter and the circulation air filter, all modules are respectively connected onto a driving circuit, the driving circuit is connected with a main controller, and an air quality sensor, a temperature and humidity sensor, a PM2.5 sensor, a carbon dioxide sensor, a press key input circuit and an LCD (liquid crystal display) display circuit are respectively connected onto the main controller. The indoor air quality intelligent control system has the effects that the regulation and control of the outdoor fresh air and the indoor circulation air are integrated, the structure of the system is simple and novel, the arrangement is compact, the installation is convenient, the treatment on the indoor air can be realized, the air quality can be ensured according to requirements, the harm to human bodies caused by outdoor pollution can be reduced, and the energy consumption is reduced.

The invention discloses a water-saving, non-blocking, clean and sanitary automatic toilet which uses the human gravity switching force. A toilet cover is automatically closed and opened, so the toilet can flush automatically after being used. A lower opening of the toilet is separated in a piston or ball valve manner so as to circulate with the air in a lower pipeline. Compared with the sealing effect of the traditional water lock, the toilet has excellent effect and saves water. The toilet piston can move downwards (upwards) and rotate; an upper opening, a lower opening and a passage turning of the toilet are provided with fixing spray nozzles; a spray shaft pipe of the toilet is provided with a spray nozzle which is capable of rotating along the shaft; the water of the toliet is added by the tap water or is finished by pedalling; the spraying process is finished by recycling an elastic glue pipe; the pressure of cleaning stream of the toilet is greater than that of the traditional toilet; the toilet saves water; and the spray nozzles of the toilet has a sleeve structure. The toilet can be cleaned by the water steam; and a steam pot is provided with a heating passage which is communicated with the toilet ring. The structure of the connection passage ball valve of the toilet is controlled by the spraying pressure. The inner wall of the upper part of the toilet is provided with a camera.

The invention discloses an air conditioner. The air conditioner comprises a controller, an indoor heat exchanger, a filter screen and a dust removing device, wherein the dust removing device is used for cleaning the filter screen. The controller is used for controlling the air conditioner to operate in a refrigeration mode when the filter screen needs to be cleaned, and thus the indoor heat exchanger can be cleaned. After the indoor heat exchanger is cleaned, the air conditioner is controlled to continuously operate in the refrigeration mode, and the dust removing device is controlled to clean the filter screen through condensate water produced by the air conditioner. The invention further provides a cleaning control method of the air conditioner. According to the air conditioner and the cleaning control method of the air conditioner, the indoor heat exchanger and the filter screen of the air conditioner are automatically cleaned.

The invention relates to an industrial enterprise pollutant emission monitoring method based on high-frequency power data. The method comprises the steps that S1, the quantity relation between the electricity consumption quantity and the pollutant emission quantity of an industrial enterprise is established; S2, an intelligent electric meter monitors the real-time electricity consumption quantity of the industrial enterprise, the real-time pollutant emission quantity is calculated according to the step S1, the electricity consumption quantity of the industrial enterprise is adjusted based on the real-time pollutant emission quantity, and the pollutant emission quantity of the industrial enterprise is controlled by adjusting the electricity consumption quantity of the industrial enterprise; S3, the step S2 is repeated, and the adjusted electricity consumption quantity of the industrial enterprise continues to be monitored. Compared with the prior art, the industrial enterprise pollutant emission monitoring method based on the high-frequency power data has the advantages that the atmospheric pollutant emission quantity can be controlled within a certain range, so that the urban air quality is guaranteed, the universality is high, operation is convenient, and the environmental protection effect is good.

The invention discloses a method for controlling an artificial intelligence home environment system based on big data, wherein the system comprises an identity recognition system, an intelligent integrated communication system, a sensor system, a home environment terminal system, an artificial intelligence operation management system and a cloud server. The method includes steps from one to eight.The method for controlling the artificial intelligence home environment system based on big data adopts a combination of big data and artificial intelligence to manage environment equipment of home space, and can realize precision control of environment equipment while ensuring user comfort and safety, thereby improving the control efficiency. At the same time, compared with the traditional independent control and remote control, the scheme can greatly save energy cost in the use of home environment equipment.

The invention relates to a sewing machine, in particular to a sewing machine with a dust collection device. The sewing machine comprises a fan, an air suction pipeline and a dust collecting bag. A suction opening of the air suction pipeline is formed below a needle plate, the other end of the air suction pipeline is connected with the fan, and an air outlet of the fan is connected with the dust collecting bag. Due to the fact that the air suction pipeline is arranged below a bottom plate of the sewing machine, dust generated in the sewing process can be effectively removed and prevented from accumulating on various movable parts, and the probability that the sewing machine breaks down is reduced. A dust blowing mode is changed into a dust suction mode, so that pollution caused by the dust to workshop environment is reduced, and air quality in a workshop is guaranteed.

The invention provides a local cabin section model for a ship impact resistance test, which is a box body formed by a dual-layer bottom compartment, a ballast compartment and a buoyancy reserve compartment. The shape of the cross section of the box body is as same as the shape of an area with length being 5-7 times of frame space along the length direction of a ship to be tested, width being halfof the width of the ship along the width direction of the ship and height being above 3-5m from the bottom of the ship up to the inner bottom along a vertical direction. The dual-layer bottom compartment is arranged at the bottom. The buoyancy reserve compartment is arranged right above the dual-layer bottom compartment. The ballast compartment consists of two independent watertight compartments,which are respectively arranged at the front and the rear of the dual-layer bottom compartment and the buoyancy reserve compartment. By designing a 1:1 actual-size typical cabin section model to carry out relevant impact resistance tests to research the local strength of a ship structure, the inaccuracy caused by a too simplified structure during a local grillage model test can be effectively remedied, the defects of high expense, difficult implementation and the like of a real ship test can be avoided and the problem that a scale model test is difficult to be converted into a similar test ofa real ship can be solved at the same time.

The invention relates to a multifunctional whirlwind typed plasma air handling unit. The invention contains a cylinder casing with a tangential air inlet pipe and a plasma generator power supply. An air out pipe is arranged on the center of the cylinder casing. A plurality of high voltage electrodes are arranged in ring direction in the annular area between the cylinder casing and the air out pipe. The high voltage electrodes are fixed on the cylinder casing by an insulation connecting fitting. The invention combines the whirlwind typed dust collector with the plasma air handling unit, which can handle dust, smoke, oil fume, water vapor, stench and various waste gases in the air, and collect various granular substances (including solid-state granular substances and liquid-state granular substances) in the air into dust-setting chamber, and transfer stench and various waste gases into poisonless, tasteless and colorless air, and so the air is effectively purified. The invention can be widely applied in various places where the air needs to be purified, and also can be applied in the places where the granular substances in the air needs to be reclaimed.

The invention discloses a control method and device of intelligent equipment. The method comprises: determining weather condition after a preset period; and controlling corresponding intelligent equipment according to the weather condition so as to ensure that after the preset period, real-time environmental parameters in an environment that the intelligent equipment is positioned meet corresponding preset environmental parameters. Through the technical scheme, the weather condition can be automatically acquired, the corresponding intelligent equipment can be controlled in advance according to the weather condition, and the air quality of the environment that a user is positioned is optimized as soon as possible, so that after the preset period, the environmental parameters of the environment are all within the standards and are all in a qualified range. Therefore, the health of the user is ensured, environmental air is prevented from being polluted, and the air quality of the environment that the user is positioned is always kept in an optimized state.

The invention relates to an underground cemetery, which comprises: a underground ashes storage section for storing cinerary casket, while said section is formed by multilayer construction structures, and each layer of ashes storage section contains an activity hall and several ashes storage spaces around the activity hall; and a channel connecting said ashes storage sections and connecting the ashes storage sections and the ground; a ventilation system inside the channel and each layer of ashes storage sections; a lighting system, a fire-fighting alarm system, a video detecting system, a drainage system, a broadcast system, a sonic / video system, a central control room on the ground, a power distribution station and a pump room. The invention reduces the land consumption, and the ground can own greenbelt, etc. while people can access into the network server of underground cemetery, via remote terminal.

The invention provides a device and method for improving sleep comfort and an air conditioner. The device comprises sleep monitoring equipment, air quality detecting equipment, air quality adjusting equipment and control equipment; the control equipment is electrically connected with the sleep monitoring equipment, the air quality detecting equipment and the air quality adjusting equipment separately; the sleep monitoring equipment is used for monitoring the sleep state; the air quality detecting equipment is used for detecting the air quality; the air quality adjusting equipment is used for adjusting the air quality. The device and method for improving the sleep comfort have the advantages that the air quality adjusting equipment is adjusted according to the user sleep state and the current air quality, thereby improving the air quality when the user sleeps, and ensuring the sleep quality of the user.

The invention provides a vehicle air conditioner filter replacement prompting method. The method comprises the following steps of: 1) acquiring the work current of an air blower in real time; 2) judging whether the acquired work current is in a normal running current range or not, if so, performing the step 1), otherwise, performing step 3); and 3) prompting. Correspondingly, the invention provides a vehicle air conditioner filter replacement prompting device, a vehicle air-conditioning system adopting the prompting device and a vehicle adopting the vehicle air-conditioning system. Accurate air conditioner filter replacement information can be provided to a user timely, and then the quality of the air in a carriage is ensured.

The invention relates to a dust removal device of a sewing machine. The dust removal device comprises two groups of stand columns which are symmetrically arranged at the front and the rear, a bed plate which is fixedly arranged on the two groups of stand columns and a machine head which is installed on the bed plate. Each group of stand columns consists of a left stand column and a right stand column which are symmetrically arranged. A guide rail is installed between the two stand columns. An adsorbing bar and an air cylinder which is connected with the adsorbing bar are arranged on the guide rail. A plurality of clipping discharge holes are formed in the bed plate. A static charge generator and a controller are respectively fixed at the two side ends of the bed plate. The adsorbing bar is connected with the static charge generator. The air cylinder and the static charge generator are connected with the controller. The dust removal device of the sewing machine has the advantages that the structure is simple, the device is convenient to use, the adsorbing bar is enabled to carry static charges through the static charge generator to adsorb thread residues, fabric clippings, dust and the like on the adsorbing bar, then the thread residues, the fabric clippings and the dust are scraped into a dust accumulation tank through a circular ring, the quality of air in a sewing workshop is guaranteed and the working efficiency is improved.

The present invention discloses an artificial intelligence home environment management system based on big data. The system comprises an identification system, an intelligent integration communicationsystem, a sensor system, a home environment terminal system, an artificial intelligence operation management system and a cloud center processor. The identification system identifies resident information and then upload resident environment data collected by the sensor system to a data analysis layer in the artificial intelligence operation management system through the intelligent integration communication system so as to establish a unique 'temperature and humidity' model of the residents in a model layer in the artificial intelligence operation management system. The artificial intelligence home environment management system is employed to improve the comfort level when the users are living, ensure the air quality safety of the home space and greatly save the energy cost in the home environmental unit usage process.

The invention relates to a vehicle-mounted multifunctional oxygen generator, which comprises air inlets, an air solenoid valve, air oil-less compressors, a condenser, an inlet air filter mechanism, an air buffer tank, an active carbon filter, an oxygen generation air solenoid valve, an oxygen generation mechanism, an oxygen buffer tank and oxygen outlets which are connected in series in sequence; the air inlets comprise a vehicle internal air inlet and a vehicle external air inlet; the air solenoid valve and the oxygen generation air solenoid valve are both two-position three-way solenoid valves; the vehicle internal air inlet is communicated with the air inlet a of the air solenoid valve; the vehicle external air inlet is communicated with the air inlet b of the air solenoid valve; the oxygen outlets comprise an oxygen outlet at the driving position, and an oxygen outlet at the compartment position; the inlet air filter mechanism consists of a primary filter and a precision filter which are connected in series; the oxygen generation mechanism is a pressure swing adsorption oxygen generation mechanism, which comprises a left air inlet valve, a right air inlet valve, a left exhaust valve, a right exhaust valve, a vacuum pump, an exhaust silencer, a left oxygen generation adsorption tower, a right oxygen generation adsorption tower, a pressure equalizing valve, a left oxygen production valve and a right oxygen production valve.

The invention relates to the technical field of household air-conditioning systems, in particular to a whole house air environment system and a control method thereof. The whole house air environment system comprises a variable frequency heat pump unit, a plate heat exchanger, a circulating water pump, a water distributor, a water collector, a constant pressure tank, a fresh air pipeline, an air return pipeline, a fan coil, a floor heating system, a fresh air unit and an air purifier, wherein the variable frequency heat pump unit, the plate heat exchanger and the circulating water pump are arranged outdoors, and the water distributor, the water collector, the constant pressure tank, the fresh air pipeline, the air return pipeline, the fan coil, the floor heating system, the fresh air unit and the air purifier are arranged indoors. One end of the fresh air pipeline is connected with the fresh air unit, and the other end of the fresh air pipeline is connected with the air return pipeline. The whole house air environment system overcomes inconvenience in mounting and maintaining a ground source heat pump system, limitation of land resources, poor human body comfort feeling experience of a multi-split system and floor height limitation of an air duct type air-conditioning system.

The invention discloses a device for removing electronic devices / components and soldered tin from waste circuit boards, which comprises a devices / components collecting box, a circuit board collecting box and a devices / components dismantling platform. The device further comprises a tin-melting furnace, wherein soldering tin is placed in the tin-melting furnace. The invention further discloses a method for removing the electronic devices / components and the soldered tin from the waste circuit boards by using the device. With the adoption of the device and the method for removing the electronic devices / components and the soldered tin from the waste circuit boards, the problems that the energy consumption is large, the heat utilization is low, and harmful elements in the circuit boards can volatilize or be oxidized when the electronic devices / components and the soldered tin are removed in the prior art are solved; through using molten soldering tin in the tin-melting furnace for heat transfer, the efficiency is increased, the energy consumption is lowered, and the manually operating intensity is lowered; meanwhile, peculiar smells and harmful gases and the like generated in a processing process are subjected to an adsorption treatment by using a negative-pressure absorption manner, and then, are discharged outdoors, the air circulation is accelerated, and the air quality of an operating environment is ensured.

The invention relates to an overhead air conditioning unit with a sand wind preventing function and for a railway vehicle. The overhead air conditioning unit comprises a shell, the shell is fixedly mounted on a vehicle body, and side cover plates are fixedly mounted on two sides of the shell respectively. Each side cover plate is of a side-opening structure enclosed by a top plate, a side plate and a bottom plate, the sides of each top plate and each bottom plate are fixedly connected, each side plate is inclined towards the outer side, each bottom plate is provided with a sand outlet close to an inclined angle of the bottom plate and the side plate, and each side plate is provided with a condensation air inlet and / or fresh air inlet and / or exhaust outlet. The condensation air inlets and / or fresh air inlets and / or exhaust outlets are respectively communicated with a condensation cavity, a fresh air cavity and an exhaust cavity in the shell through a condensation cavity opening, a fresh air cavity opening and an exhaust cavity opening in the shell. By the aid of the side cover plates, most sand is effectively stopped outside the air conditioning unit, fine dust entering the side cover plates can be collected and discharged, so that sand is effectively prevented from entering the vehicle body from the air conditioning unit, air in carriages is kept fresh, and comfort of passengers is improved.

The invention discloses a porous glass plate and structures adopting the porous glass plate, which adopt the technical scheme that: the porous glass plate is provided with pores, the pores are perforated in a thickness direction and are in regular or irregular distribution in a plane direction, the opening ratio is more than or equal to 0.5 percent and is less than or equal to 60 percent, and thepores are circular or in any shape; and the structures adopting the porous glass plate comprise building and structure windows adopting the porous glass plate, vehicle windows adopting the porous glass plate, enclosures adopting the porous glass plate, sound barriers adopting the porous glass plate, totally enclosed structures of traffic passages adopting the porous glass plate, and paravents adopting the porous glass plate. The porous glass plate has the advantages of having air permeability and being favorable for the ventilation, having the sound-absorbing effect of a perforated plate and amicroperforated plate and certain sound insulation effect, having the effects of keeping out the wind and reducing the wind pressure, and having the rainproof and antitheft effects. The porous glassplate is applicable to windows or glass curtain walls of buildings and structures, vehicle windows, enclosures, sound barriers, enclosed structures of traffic passages and paravents.

The invention discloses stable low-noise adobe compaction equipment for constructional engineering, and belongs to the technical field of constructional engineering machinery. The equipment comprisesan equipment body; a crankshaft is arranged between the left inner wall and the right inner wall of the equipment body; the outer wall of the crankshaft is movably sleeved with two groups of movable sleeves; a rotating pull rod is hinged to the outer wall of the movable sleeves; a limiting sleeve is arranged at the bottom of an inner cavity of the equipment body; a movable rod is arranged at the top of the limiting sleeve; the top of the movable rod is hinged with the bottom of a rotary pull rod; a driving motor is arranged at the top of the mounting plate through the top of a damping device;a driving gear is arranged on an output shaft of the driving motor; and a driven gear is arranged on the left side of the outer wall of the crankshaft; the driving gear and the driven gear are connected through a chain; rolling wheels are arranged at the bottom of the machine body through a mounting base. The tamping equipment is simple in structure, high in compaction efficiency on the adobe, capable of effectively reducing noise and capable of improving the stability of the compaction equipment.

The invention provides an indoor and outdoor air exchange and intelligent purification system. The indoor and outdoor air exchange and intelligent purification system comprises a shell, wherein an air inlet cavity and an air outlet cavity are arranged in the shell, the air inlet cavity and the air outlet cavity are communicated through an air inlet channel, an air inlet is formed in the air inlet cavity, an air outlet is formed in the air outlet cavity, an exhaust channel is further arranged in the shell, the two ends of the exhaust channel are provided with an inner exhaust outlet and an outer exhaust outlet respectively, an air inlet fan is arranged at the air outlet, an exhaust fan is arranged at the outer exhaust outlet, a turbofan is arranged at the end, located at the air inlet cavity, of the air inlet channel, and the air inlet, the air outlet, the inner exhaust outlet and the outer exhaust outlet are respectively provided with a filter screen. The indoor and outdoor air exchange and intelligent purification system has two air inlet modes, namely the negative pressure air inlet mode and the positive pressure air inlet mode; as a result, the indoor air quality can be guaranteed, the air inlet quantity is effectively improved, and indoor air is kept fresh.

The invention discloses an air conditioner. The air conditioner comprises an indoor unit and a heat exchange device; the indoor unit comprises an indoor unit shell, an evaporator and a compressor; a first return air inlet and a first air outlet are formed in the indoor unit shell; a return air cavity and a containing cavity which communicate with each other are formed in the indoor unit shell; theevaporator and the compressor are arranged inside the containing cavity; the first return air inlet communicates with the return air cavity; the first air outlet communicates with the containing cavity; the heat exchange device comprises a fresh air channel, a return air channel and a heat exchange core; the heat exchange core is arranged between the fresh air channel and the return air channel;the fresh air channel is provided with a fresh air inlet and a fresh air outlet; the return air channel is provided with a second return air inlet and a second air outlet communicating with the returnair cavity. The invention further discloses a control method and device of the air conditioner and a readable storage medium. The energy consumption of the air conditioner is reduced while the air quality inside a machine room is ensured.

The invention discloses intelligent environmental protection asphalt mixing equipment loading system, through the driveway adaptive closed module building half closed / closed loading environment, effectively avoiding the pollution spillover, and reducing the spread of noise; Through the finished intelligent load module product to ensure the uniformity and continuity of the aggregate load, and ensure the quality of the load; Through the asphalt smoke processing module to get rid of the harmful material in asphalt gas rapidly, efficiently and thoroughly, and make it reach the standard atmospheric emissions; Through the dust processing module, reducing the environment pollution; Through the dry fog dust module effectively reducing the load of dust and the concentration of suspended particles, then improving the comfort of finished product loading zone . Compared with the existing technology, the present invention is simple and practical, with high integration automation, simple operation, which is used to solve the problems of difficult loading, low efficiency, material segregation, noise, dust and asphalt gas pollution and other issues in loading process.

The invention discloses an ecological and environment-friendly coating and a preparation method thereof. The coating is prepared from raw materials in parts by weight as follows: 0.05-0.15 parts of a pH regulator, 0.3-0.8 parts of a dispersant, 10-15 parts of a hydroxyethyl cellulose solution, 0.1-0.4 parts of a wetting agent, 0.1-0.4 parts of an antifoaming agent, 1-10 parts of negative oxygen ion powder, 10-20 parts of titanium dioxide, 0.05-0.2 parts of a molecular sieve silver-loaded antibacterial agent, 0.1-0.4 parts of a preservative, 2-10 parts of quartz / nano-titanium dioxide compound slurry, 10-20 parts of superfine quartz powder slurry, 15-40 parts of a water-based acrylic emulsion, 0.2-1.0 part of a thickening agent and 20-30 parts of deionized water. The coating has good performance, the formaldehyde purification rate is higher than 95%, the formaldehyde purification durability is longer than 90%, the antibacterial effect is higher than 90%, and the negative oxygen ion release amount is larger than 8000 per cubic centimeter.

The invention provides a cyclone filter cylinder combined type dust collecting device, and relates to the technical field of structure design of subway rail maintenance devices. The device is used tofilter dust and fume containing gas generated during the subway steel rail polishing process. In a primary filtering apparatus, a cyclone separator has a combined structure of a cylindrical cavity anda circular truncated cone cavity; one end of a first air inlet channel is connected to a first through hole, the other end is connected to a steel rail polishing device through a connection corrugated pipe; in a secondary filtering apparatus, multiple detachable filter cylinders are evenly arranged in a filter cavity, the bottom is connected to a second dust collection box, the filter cavity is communicated with the cylindrical cavity through a second air inlet channel, a power device is arranged on the exterior of the secondary filtering apparatus and is used to provide power for air flowing. After the dust and fume containing gas generated during the subway steel rail polishing process is purified by a primary separation device and a secondary separation device, the solid particles areremoved, the temperature is reduced, and the damage to the communication cables or air conditioners in a tunnel by high temperature gas is avoided.

The invention discloses a power-free rapid ventilation system of a workshop. The power-free rapid ventilation system of the workshop comprises a ventilator, a wind-driven wheel, a wind direction plate, a main shaft, a bevel gear a, a bevel gear b, a supporting frame, a rotary disc, a driving shaft, a transmission mechanism c and a going barrel. The ventilator is installed in a ventilation passage at the top of the workshop. The bevel gear b is installed on a ventilator shaft and engaged with the bevel gear a. The rotary disc is arranged at a top end outlet of the ventilation passage, and the bottom surface of the rotary disc is provided with a guide groove corresponding to the ventilation passage. The supporting frame is arranged on the rotary disc. The wind-driven wheel is installed on the main shaft. The main shaft is installed on the supporting frame through a bearing. The wind direction plate is arranged on the supporting frame and on the side symmetric to the wind-driven wheel. The two ends of the transmission mechanism c are connected with a transmission shaft and the main shaft correspondingly. The going barrel is arranged between the driving shaft and the transmission shaft, and the two ends of a spring shaft are connected with the transmission shaft and the driving shaft correspondingly through an overrunning clutch. The bevel gear a is installed on the driving shaft. The work area of the wind-driven wheel is large, and the wind-driven wheel can be driven to rotate by even small natural wind.