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44results about How to "Reduce the difficulty of running" patented technology

Method and device for realizing various services diversion in home base station

The invention discloses a method and a device for realizing various services diversion in a home base station. As for the method, when a user initiates grouping territory service request information, a PNC (Radio Network Controller) and a Node B functional module which are integrated in a 3G service process unit in the home base station transmit the information to a service differentiating unit, the service differentiating unit differentiates the services according to the message type, a route management unit of the home base station sets a target server address into an IP address accessed by the user according to grouping territory service type, the base station admits into an IP supporting network through a network element unit, and finally the IP supporting network is directly connected into an IP network. The device comprises the home base station, and network units of an ADSL (Asymmetric Digital Subscriber Line), a DSLAM (Digital Subscriber Line Access Multiplexer), and a BRAS (Broadband Remote Access Server), wherein the base station comprises the 3G service process unit, the service differentiating unit and the route management unit. According to the invention, the flow direction of grouping territory service data in the network can be changed so as to reduce the load of the network element device in the 3G network and lower the running difficulty of a core network.
Owner:COMBA TELECOM SYST CHINA LTD

Hierarchical cavity type solar heat absorber and heat exchange system

The invention discloses a hierarchical cavity type solar heat absorber which comprises a solar reflector and heat absorbers, and is characterized in that the heat absorbers comprise an independent primary heat absorber and an independent secondary heat absorber, namely a primary heat absorber with an evaporation heating surface and a secondary heat absorber with an overheating heating surface, wherein the evaporation heating surface and the overheating heating surface are connected through a steam pocket. The invention has the beneficial effects that as condensers and the heat absorbers are arranged in a targeted manner, the heat-flow density can be effectively distributed, the safety of the heat absorbers is ensured and the operation difficulty is reduced; the tube wall thickness of the heat absorbers can be properly increased so as to improve the pressure rating of a working medium and the unit efficiency; and the condensers are arranged in groups and the heat-flow density of each part in a heat receiver is controlled within a reasonable range so that temperature near the heat receiver can be reduced and the solar heat radiation loss after focusing is reduced.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP

Intelligent hot water distribution multi-user solar water heating system

The invention discloses an intelligent hot water distribution multi-user solar water heating system. The system comprises a solar heat collector, a water tank, user water-using terminals, a connecting water tank, a hot water output pipe of each user water-using terminal and a cold water input pipe of each user water-using terminal, wherein a first intelligent controller is arranged in front of each user water-using terminal; the water inlet end of the solar water collector is provided with a water level and water temperature sensor; the water tank is provided with a second intelligent controller; each intelligent controller comprises a microprocessor, a flow sensor, an electromagnetic valve, a temperature sensor, a display screen, a keyboard and a communication interface; the microprocessor is communicated with other components of the intelligent controller; and all intelligent controllers communicate with each other through a communication interface. The system has the advantages of remarkably enhancing solar energy utilization efficiency, reducing energy source consumption, meeting the requirement of most users in a user group on basic solar hot water amount to the maximum extent, allowing the users to set the hot water using mode and using amount of the system according to practical requirements, lowering system running difficulty and remarkably expanding the range of application.
Owner:SUZHOU BAIMU AUTOMATION TECH

Coke dry quenching optimization control method and system

The invention provides a coke dry quenching optimization control method and system. The method comprises the steps that historical data, current operation data and production plan data of coke dry quenching production equipment are acquired, wherein the historical data comprises historical operation data and historical working condition data corresponding to the historical operation data; data analysis processing is performed based on the historical data, the current operation data, the production plan data and a preset working condition data set to obtain control parameters of the dry quenching production equipment according with the current working condition; and the control parameters are sent to a control server of the coke dry quenching production equipment, so that the control servercontrols the work of the coke dry quenching production equipment based on the control parameters. By applying the coke dry quenching optimization control method provided by the invention, full-automatic operation of the coke dry quenching production equipment can be realized, the operation efficiency of the coke dry quenching production equipment is improved, the operation difficulty of the cokedry quenching production equipment is reduced, and the operation level of the coke dry quenching production equipment is improved.
Owner:HUATAI YONGCHUANG BEIJING TECH CO LTD

Internet based hydropower-station centralized control system and method

An embodiment of the invention provides an internet based hydropower-station centralized control system and method. The hydropower-station centralized control system is characterized in that at least one hydropower station is in communication connection with a centralized control center through the internet; the centralized control center comprises a centralized control center host and at least one hydropower station operator workstation connected with the centralized control center host through the local area network; the hydropower station operator workstations perform remote data acquisition and monitoring control functions on the centralized control center host; the hydropower stations and the centralized control center are physically isolated from the internet through a network one-way isolation device so as to ensure that the hydropower stations and the centralized control center are avoided from attacking from the internet. The internet based hydropower-station centralized control system and method has the advantages that hydropower station operators can perform remote centralized data acquisition and monitoring control functions on the multiple scattered hydropower stations, monitoring operation and management difficulty on the hydropower stations is lowered, and operation cost is lowered.
Owner:SICHUAN YITIAN JIQUN TECH

Tail flue gas waste heat utilizing system of utility boiler based on hot blast recycling

The invention relates to a tail flue gas waste heat utilizing system of an utility boiler based on hot blast recycling. The tail flue gas waste heat utilizing system comprises a boiler water supply regenerative heating device and a boiler tail flue gas waste heat utilizing device, wherein the boiler water supply regenerative heating device is provided with a low-pressure heating unit, a high-pressure heating unit, a deoxygenizing unit and a water supply pump, which sequentially communicate; low-pressure extraction steam generated after work application of steam generated by the boiler is used by the low-pressure heating unit as a heat exchanging heat source; and high-pressure extraction steam generated after work application of steam is used by the high-pressure heating unit as a heat exchanging heat source. According to the tail flue gas waste heat utilizing system disclosed by the invention, a circulating hot wind is utilized as a heat-transfer medium, so that the temperature level and the heat-into-power conversion efficiency of the flue gas waste heat recycled by the water supply regenerative system are improved, the purpose that the electricity supply efficiency of an electricity generating system is substantially improved is realized, the investment and the operation control difficulty of a waste heat recovery system are reduced, the problems of the corrosion, the ash deposition and the abrasion of the waste heat recovery system are solved, the cold end low temperature corrosion of an air preheater is avoided, besides, newly building a bypass flue is not needed, the system is compact in technological process, and the construction of the engineering is facilitated.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Anti-blocking riverway desilting treatment equipment

The invention discloses anti-blocking riverway desilting treatment equipment, and belongs to the technical field of hydraulic engineering. The anti-blocking riverway desilting treatment equipment comprises a cart, a mud pump is fixedly installed in the middle of the top end of the cart, one end of the mud pump is connected to a silt pumping pipe, one end of the silt pumping pipe is connected to an iron pipe, a filter screen is welded to the middle of one end of the iron pipe, a rotating column is rotatably connected to the middle of the inner wall of the filter screen, a scraping plate is welded to the position, corresponding to one end of the filter screen, of the outer surface of the rotating column, a conical table is welded to the position, located in the middle of the inner wall of the iron pipe, of the other end of the rotating column, through the cart, the silt pumping pipe, the iron pipe, the filter screen, the rotating column, the scraping plate, the conical table, a circular ring and a stand column, silt inside a river channel can be conveniently pumped, meanwhile, larger particles inside the silt can be blocked and prevented from entering the interior of the silt pumping pipe, and therefore the phenomenon that the interior of the silt pumping pipe is blocked is prevented, operation of the silt pump is facilitated, and the operation difficulty of the silt pump is reduced.
Owner:盐城恒清河湖整治有限公司

Seeder capable of automatically removing soil

InactiveCN106612664AUniformity of buried depthIncrease productionSpadesPloughsSeederEngineering
The invention provides a seeder capable of automatically removing soil. The seeder comprises a rack, a land wheel and a press wheel. The land wheel is arranged on the front end of the rack in a rotation mode while the press wheel is arranged on the back end of the rack in a rotation mode. The back of the land wheel is provided with a furrow opener, a seeding outlet and a covering device in sequence. The furrow opener and the covering device are fixed on the rack. The seeding outlet communicates with a sowing box fixed on the rack. The rack is provided with an engine which is connected with the press wheel through a belt. Below the rack, a scraper is arranged in front of the press wheel which cooperates with the scraper. The scraper is connected with a torsion shaft fixed with the rack through a joint lever. The end of the torsion shaft is fixedly sleeved with a torsion handle. The seeder has the advantages of automatically removing soil on the press wheel and reducing labor cost.
Owner:TIANJIN JIABANGNUO TECH CO LTD

Prediction method after vehicle changes lane to front vehicle of target lane during automatic driving

ActiveCN110920623AReduce the amount of calculation for data analysisReduce the difficulty of runningPredictive methodsReal-time computing
The invention discloses a prediction method after a vehicle changes a lane to a vehicle in front of a target lane in automatic driving. Acquiring driving state data of the following vehicles in the current sampling period: a pre-lane-changing vehicle, a first vehicle in front of the lane where the pre-lane-changing vehicle is located, a first vehicle located in front of the pre-lane-changing vehicle in the target lane, and a first vehicle located behind the pre-lane-changing vehicle in the target lane; calculating the willingness of the pre-lane-changing vehicle after the pre-lane-changing vehicle changes the lane to the front vehicle of the target lane according to the acquired driving state data of each vehicle and the lane environment data; and when the willingness exceeds the willingness threshold, predicting that the pre-lane-changing vehicle will change lanes to the position behind the front vehicle of the target lane at the future moment. According to the prediction method, thefactor that surrounding vehicles disturb the decision of the vehicle is effectively eliminated, and the confirmation degree of the decision of the vehicle is improved; Meanwhile, the data analysis calculation amount of a prediction module in the automatic driving system is effectively reduced, the operation difficulty and the operation cost of the automatic driving system are reduced, and the delay of decision making is effectively improved.
Owner:GOODGRID AUTOMOTIVE TECH SUZHOU CO LTD

Tidal power generation system for full-time continuous power generation

InactiveCN103423077ARequirements for small water head differencesLow running costMachines/enginesEngine componentsOceanographyElectric generator
Provided is a tidal power generation system for full-time continuous power generation. The system comprises a reservoir and a power generating device. The reservoir comprises a main reservoir and a tail reservoir, and the main reservoir is adjacent to the tail reservoir and is independent to the tail reservoir. The power generating device is arranged on a dam foundation of the main reservoir, the power generating device is mainly formed by a base, dam piers, an upper beam, a flashboard and a hydro-generator, the base is fixed on the dam foundation of the main reservoir, the dam piers are arranged on the two sides of the base respectively, the upper beam is fixed at the tops of the dam piers, an elevator is arranged on the upper beam, a frame-shaped rack is formed by the base, the dam piers on the two sides and the upper beam, the flashboard and the hydro-generator are assembled in the frame-shaped rack, the flashboard comprises a front flashboard and a rear flashboard which are arranged on the front side and the rear side of the hydro-generator respectively, the hydro-generator is transversely arranged, the flashboard and a pull rod of the hydro-generator are respectively extended to the top of the upper beam to be connected with the elevator, and water discharged from the main reservoir is led into a flowing water area or the tail reservoir through lifting control of the flashboard. The tidal power generation system for full-time continuous power generation has the advantages of being small in construction and operation difficulty, low in operation cost, high in reliability and the like.
Owner:钟世杰

Coal mine gas inspection robot method and system

The invention relates to a coal mine gas inspection robot method and system. A wired control display terminal is arranged at a roadway intersection entrance; the drive-by-wire display terminal is provided with a UWB positioning base station, and the bottom of each roadway is also provided with a UWB positioning base station; the system further comprises a plurality of inspection robots provided with UWB positioning tags. Forming a one-dimensional positioning network in each roadway according to the UWB positioning base stations; generating a cruise command according to a corresponding processing item in the inspection request; sending a cruise command to a matched inspection robot; cruising at a corresponding target position in response to the cruising command, and performing signal detection of a processing item; when the signal detection is normal, the inspection robot stores the detection data and transmits the detection data to the drive-by-wire display terminal after the cruise is finished; when the signal detection is abnormal, the inspection robot transmits detection data to the drive-by-wire display terminal through wireless communication; accurate positioning can be realized, the complexity of an inspection route is simplified, the operation difficulty is reduced, and the operation safety is improved.
Owner:BEIJING LONGDE SHIDAI TECH SERVICE

Seeding machine convenient to reverse to cover soil

InactiveCN106717200AUniformity of buried depthIncrease productionSpadesPlantingSeederAgricultural engineering
The invention provides a seeding machine convenient to reverse to cover soil. The seeding machine comprises a rack, a ground wheel and a pressing wheel, wherein the ground wheel and the pressing wheel are respectively installed on front and back ends of the rack; a furrow opener, a seed feed opening and a covering device are arranged behind the ground wheel in sequence; the covering device comprises two scrapers symmetrically arranged on the seeding machine, and the two scrapers are further connected with a reversing mechanism. The seeding machine provided by the invention can effectively improve the soil covering efficiency by means of the adjustment of the reversing mechanism.
Owner:TIANJIN JIABANGNUO TECH CO LTD

Gas purification adsorbent as well as preparation method and application thereof

The invention discloses a gas purification adsorbent, which is composed of the following components in percentage by weight: 50 to 95 wt% of mixed crystal molecular sieve, 1 to 49 wt% of binder, and 1 to 49 wt% of performance additive. In addition, the invention also relates to a preparation method of the coal gas purification adsorbent and the coal gas purification adsorbent as a single adsorbent for filling use, and the coal gas purification adsorbent can simultaneously remove impurities such as sulfide, aromatic hydrocarbon, tar and ammonia in coal gas at one time.
Owner:上海圣升化工科技有限公司

Humidification desulphurization sweeping device for tail flue of coal-fired boiler

The invention discloses a humidification desulphurization sweeping device for a tail flue of a coal-fired boiler, and belongs to the technical field of coal-fired boiler desulphurization. The humidification desulphurization sweeping device is matched with a flue gas humidification activation or calcium-adding desulphurization technical device for the tail flue of the coal-fired boiler; damp falling ash generated by a flue gas humidification desulphurization technology are effectively removed under certain temperature and pressure through flue gas generated by the coal-fired boiler, and blocking caused by a fact that the falling ash is attached to the flue is prevented. The sweeping device is mounted in a space formed among a coal-fired boiler economizer, an air preheater and a dust remover and mainly comprises a gas conveying pipeline, a cyclone separator, a draught fan, a flue gas connection box and a gas outlet connection pipe. Part of the ash-containing flue gas is discharged from the flue at the outlet of the air preheater and the flue at the outlet of the economizer; due to separation of the cyclone separator, most of the ash is removed; then the flue gas enters the flue gas connection box and then enters the tail flue through the gas outlet connection for tail flue sweeping. The humidification desulphurization sweeping device is simple in structure and smaller in investment; the problem of scaling caused during desulphurization running is reduced, and the humidification desulphurization efficiency at the tail part is improved.
Owner:中能东讯新能源科技(大连)有限公司 +1

Building construction drilling machine with correction function

The invention discloses a building construction drilling machine with a correction function. The building construction drilling machine with the correction function comprises a punching machine base body, a limiting protection mechanism is fixedly installed on the edge of one end of the punching machine base body, positioning clamping mechanisms are symmetrically installed on the two sides of the back face of the limiting protection mechanism, a protection bearing mechanism is welded to the bottom of one end of the punching machine base body, an oil tank is installed at the bottom end of the punching machine base body, and a supporting assembly is installed at the position, corresponding to the bottom end of the oil tank, of the bottom end of the punching machine base body. Through the limiting protection mechanism, secondary fixing of a drill bit can be facilitated, so that connection between the drill bit and a punching machine is more stable, and shaking of the drill bit in the operation process is reduced; and meanwhile through an outer conical cover, the stability between the punching machine and a wall is improved, so that shaking of the punching machine during operation is reduced, operation of the drilling machine is facilitated, interference of shaking of the punching machine during operation on drilling of the wall is reduced, and drilling treatment on the wall is facilitated.
Owner:邵燕

Auxiliary drive electric trailer flat car used for goods and luggage transportation

An auxiliary drive electric trailer flat car used for goods and luggage transportation comprises an electric trailer flat car body, at least one electric motor, a drive controller, a signal receiver and a power supply, wherein the electric trailer flat car body mainly comprises a supporting plate, and two front wheels and two rear wheels arranged at the front and back of the bottom surface of the supporting plate; the two front wheels are connected by a front axle; the two rear wheels are connected by a rear axle; the electric motor is installed at the axle; the drive controller is connected with the electric motor and a central controller arranged on a trailer truck; the signal receiver is connected with the drive controller and the central controller; the power supply is electrically connected with each electric component. According to the invention, on the basis of the electric drive characteristics of goods and luggage transportation at the civil aviation airport, under the condition that total power of the whole system is constant, power arrangement is dispersed, the whole is broken into parts, mutual cooperation is realized, and under the principles of optimizing power and lowering the operation difficulty and manufacturing costs, the overall performance of a transport vehicle system is improved and the load distribution of energy medium is improved.
Owner:CIVIL AVIATION UNIV OF CHINA

Kitchen garbage pyrohydrolysis device and method

The invention relates to a kitchen garbage thermal hydrolysis device and method. The device comprises a feeding balance section which is configured to receive materials and control the pressure in the feeding balance section to be a required value; a feeding port of the pyrohydrolysis tank is in on-off controllable connection with the feeding balance section, a discharging port of the pyrohydrolysis tank is in on-off controllable connection with the discharging balance section, and the pyrohydrolysis tank is configured to perform constant-pressure pyrolysis work; and the discharging balance section is configured to receive the pyrolyzed materials in the pyrohydrolysis tank and can control the pressure in the discharging balance section to be a required value. According to the scheme, the garbage can be pretreated in a continuous thermal hydrolysis mode, the defects of sequencing batch production are overcome, automatic production is facilitated, and the production efficiency can be improved.
Owner:北京洁绿环境科技股份有限公司

An electric power distributed system based on a block chain and a block chain recording method thereof

The invention discloses an electric power distributed system based on a block chain and a block chain recording method thereof. The method comprises the steps of receiving related information of a distributed system, wherein the related information comprises first interaction information generated by an intelligent electric meter, first electric power information generated by a photovoltaic cell control system and second electric power information generated by a wind power control system; the charger generates second interaction information; Generating a block chain in the block chain, extracting distributed first position information associated with the first power information based on the first power information, and recording the first power information and the first position information on a first block on the block chain; Extracting distributed position information associated with the second power information based on the second power information, and recording the second power information and the second position information on a second block on a block chain; and a publishing block chain that transmits the first block and the second block to one or more other nodes in the entire block chain.
Owner:江苏盐城丝路云创区块链科技有限公司

Canned reactor coolant pump locking cup local video inspection method

The invention discloses a canned reactor coolant pump locking cup local video inspection method. The method comprises the following steps of S1, installing a soft guide pipe extending to a position near an inspection space at an inspection inlet of a canned reactor coolant pump, wherein the inspection space is located between a thrust bearing and a locking cup both in the canned reactor coolant pump; S2, extending an endoscope probe into the inspection space along the soft guide pipe; and S3, operating the endoscope probe to enable the endoscope probe to circularly move along the inspection space to inspect the locking cup. According to the method, the video inspection can be carried out on the locking cup of the canned reactor coolant pump in the high-radioactivity environment of a localcanned motor pump of a nuclear power plant, the endoscope probe is guided to reach the interior of the inspection space through the soft guide pipe so that the endoscope probe can complete a pluralityof 90-degree turns in a narrow space, and the video inspection on the surface of the locking cup of the canned motor pump is completed; and the operation is convenient, the inspection efficiency is high, the tools are simple, the investment is low, the inspection period is short, the equipment of the power plant is free of any damage, and the inspection cost of the power plant is greatly saved.
Owner:SANMEN NUCLEAR POWER CO LTD

Unattended operation mode pipe gallery tunnel auxiliary monitoring system and method

The invention discloses an unattended operation mode pipe gallery tunnel auxiliary monitoring system and method. The system comprises a control unit. A pipe gallery tunnel comprises an SF6 exhaust channel, a patrol channel and a main channel. A ventilation valve is arranged between every two adjacent channels. Air supply machines and exhaust fans are correspondingly arranged at the two ends of thepatrol channel and at the two ends of the main channel. SF6 exhaust fans are correspondingly arranged at the two ends of the SF6 exhaust channel. A plurality of SF6 sensors, temperature and humiditysensors, harmful gas sensors and oxygen sensors are arranged in the patrol channel and the main channel in the extending direction of the channels. The output ends of the SF6 sensors, the temperatureand humidity sensors, the harmful gas sensors and the oxygen sensors and the control ends of the ventilation valves, the air supply machines and the exhaust fans are connected with the control unit. By using the unattended operation mode pipe gallery tunnel auxiliary monitoring system and method, the environment in a pipe gallery can be monitored, the fan and ventilation valve control can be carried out on the environment parameters in the pipe gallery according to the actual working condition or the required working condition, the manpower input of pipe gallery monitoring is reduced, and thediscovery and response efficiency during sudden accidents in the pipe gallery is improved.
Owner:NR ELECTRIC CO LTD +1

Load-intensive urban smart park demand aggregation modeling method

The invention discloses a load-intensive urban smart park demand aggregation modeling method, which starts with a database structure and a data source form of an energy management platform in a smartpark, proposes an original data integration and selection method, and extracts an energy consumption data set needing to be mined and processed. On this basis, a load-intensive urban smart park demandaggregation original data processing method is provided, energy consumption data of the load-intensive urban smart park is processed, and the utilization efficiency of the data is improved by processing, recognizing and correcting bad source data; then, energy consumption characteristics of the load-intensive urban smart park demand data are mined by applying a fuzzy clustering technology, and aload-intensive urban smart park demand aggregation model is established; by applying the result of demand aggregation modeling to park energy optimization scheduling, load optimization operation of multiple types of users in the load-intensive urban smart park can be realized, and thus the overall energy efficiency of the smart park is improved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Quality-divided crystallization device and process capable of realizing zero discharge of high-salinity wastewater

The invention discloses a simple and highly-efficient quality-divided crystallization device and process capable of realizing zero discharge of high-salinity wastewater. The quality-divided crystallization device comprises a highly-efficient concentration unit, an evaporative crystallization unit, a freezing crystallization unit, a nitrate recrystallization unit and a mixed salt crystallization unit, wherein all the units are connected with a liquid pump and a solid conveyor through pipelines. By adoption of the treatment process provided by the invention, the purpose of zero discharge of thehigh-salinity wastewater with a salt-nitrate ratio (the mass ratio of sodium chloride to sodium sulfate) of no less than 10: 1 or no larger than 1: 1 is achieved; meanwhile, valuable salts like sodiumchloride and sodium sulfate are recycled; the process of the quality-divided crystallization device is simplified; the operation difficulty of quality-divided crystallization is reduced; the qualityof crystallized salt is improved; the operation cost is reduced; and significant economic benefits and social benefits are achieved.
Owner:MAIWANG INT BUSINESS SHANGHAI

A glass fiber production wastewater treatment equipment and treatment method

The invention discloses a treatment device and treatment method for glass fiber production wastewater. The wastewater is treated in stages, a wastewater flow dividing device is arranged, through monitoring of the attenuation degree of an infrared laser, the amount of impurities in the wastewater is judged, the more the impurities in the wastewater, the more the attenuation of the infrared laser, and the weaker the signal detected by an infrared sensor; and when the amount of the impurities in the wastewater is smaller, the wastewater directly enters a second water treatment device for softening treatment, and when the amount of the impurities in the wastewater is larger, the wastewater enters an SBR firstly for a reaction, then the reacted wastewater enters the second water treatment device for softening treatment. The treatment device and treatment method for the glass fiber production wastewater provided by the invention can perform targeted treatment according to the amount of the impurities in the wastewater, have good wastewater treatment effects, can effectively improve the treatment efficiency of the wastewater, and reduce the treatment costs.
Owner:SHANDONG FIBERGLASS GRP

A slicing method for 3D printing

The invention discloses a 3D printing slicing method, which is characterized in that (1) using computer-aided design software to establish a three-dimensional model of a product to be printed; (2) performing slice processing on the three-dimensional model, and cutting the model along the vertical direction Separated into several slices, wherein at least part of the layer formed by the slices is a curved surface layer, the intersection line between the curved surface layer and the vertical cut surface is a sinusoidal distribution curve, and a regular and uniform peak-valley distribution is formed on the slice surface ; (3) According to the layered slice information obtained in step (2), print the model layer by layer. The invention greatly increases the strength of the device obtained by 3D printing without changing the adhesiveness of the material itself, and facilitates the realization of model reconstruction.
Owner:SUZHOU UNIV

Humidification and desulfurization purging device for tail flue of coal-fired boiler

The invention discloses a humidification desulphurization sweeping device for a tail flue of a coal-fired boiler, and belongs to the technical field of coal-fired boiler desulphurization. The humidification desulphurization sweeping device is matched with a flue gas humidification activation or calcium-adding desulphurization technical device for the tail flue of the coal-fired boiler; damp falling ash generated by a flue gas humidification desulphurization technology are effectively removed under certain temperature and pressure through flue gas generated by the coal-fired boiler, and blocking caused by a fact that the falling ash is attached to the flue is prevented. The sweeping device is mounted in a space formed among a coal-fired boiler economizer, an air preheater and a dust remover and mainly comprises a gas conveying pipeline, a cyclone separator, a draught fan, a flue gas connection box and a gas outlet connection pipe. Part of the ash-containing flue gas is discharged from the flue at the outlet of the air preheater and the flue at the outlet of the economizer; due to separation of the cyclone separator, most of the ash is removed; then the flue gas enters the flue gas connection box and then enters the tail flue through the gas outlet connection for tail flue sweeping. The humidification desulphurization sweeping device is simple in structure and smaller in investment; the problem of scaling caused during desulphurization running is reduced, and the humidification desulphurization efficiency at the tail part is improved.
Owner:中能东讯新能源科技(大连)有限公司 +1

Auxiliary monitoring system and method for unattended mode pipe gallery tunnel

The invention discloses an auxiliary monitoring system and method for an unattended mode pipe gallery tunnel. The system includes a control unit; the pipe gallery tunnel includes an SF6 exhaust channel, a patrol channel and a main channel; ventilation valves are arranged between adjacent channels; the patrol channel SF6 exhaust fans are installed at both ends of the SF6 exhaust channel; multiple SF6 sensors, temperature and humidity sensors, Harmful gas sensor and oxygen sensor; the output terminals of the SF6 sensor, temperature and humidity sensor, harmful gas sensor and oxygen sensor, and the control terminals of each ventilation valve, blower and exhaust fan are respectively connected to the control unit. The invention can monitor the environment in the pipe gallery, and can control the environmental parameters of the pipe gallery according to the actual working conditions or required working conditions. Detection and response efficiency in the event of an accident.
Owner:NR ELECTRIC CO LTD +1

Hierarchical cavity type solar heat absorber and heat exchange system

The invention discloses a hierarchical cavity type solar heat absorber which comprises a solar reflector and heat absorbers, and is characterized in that the heat absorbers comprise an independent primary heat absorber and an independent secondary heat absorber, namely a primary heat absorber with an evaporation heating surface and a secondary heat absorber with an overheating heating surface, wherein the evaporation heating surface and the overheating heating surface are connected through a steam pocket. The invention has the beneficial effects that as condensers and the heat absorbers are arranged in a targeted manner, the heat-flow density can be effectively distributed, the safety of the heat absorbers is ensured and the operation difficulty is reduced; the tube wall thickness of the heat absorbers can be properly increased so as to improve the pressure rating of a working medium and the unit efficiency; and the condensers are arranged in groups and the heat-flow density of each part in a heat receiver is controlled within a reasonable range so that temperature near the heat receiver can be reduced and the solar heat radiation loss after focusing is reduced.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP

Tower reactor for ecologically treating rural wastewater and treatment method

ActiveCN111807639AOvercoming the problem of a single processing methodCompact structureWater treatment parameter controlWater aerationConstructed wetlandSludge
The invention discloses a tower reactor for ecologically treating rural wastewater, which comprises an adjusting tank communicated with an anoxic reaction tank; the sedimentation tank is communicatedwith the reaction tank, and an overflow weir is arranged at the upper part of the sedimentation tank; the hydraulic drop oxygenation step is communicated with the overflow weir; and the constructed wetland is communicated with the drop oxygenation step. The invention also provides a rural wastewater ecological treatment method. The method comprises the following steps: step 1, pretreating the water quality of rural sewage through the regulating tank; 2, conveying the pretreated sewage into an anoxic reaction tank, and carrying out denitrification treatment; 3, conveying the denitrified sewageinto a settling pond for solid-liquid separation, and discharging settled sludge through a sludge discharge pipe; and 4, conveying the supernatant subjected to solid-liquid separation into an artificial wetland, and carrying out ecological treatment on the supernatant through the comprehensive action of wetland filler and wetland plants.
Owner:CHINA URBAN CONSTR DESIGN & RES INST CO LTD
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