870results about How to "Easy to operate and maintain" patented technology

A counter top reverse osmosis water purification system, suitable for home use, is connected to a water supply and contains a closed fluid treatment circuit extending to a water outlet. The closed fluid circuit flows through a plurality of replaceable water treatment modules mounted on a flowboard and each having a specific water treatment function, such as the removal of a particular material from the water by the use of reverse osmosis, filtration, carbon adsorption, ion exchange or the addition of a chemical to balance the desired water conditions. Preferably the circuit also includes traversing a radiation device, for example an ultraviolet light, for the purpose of sanitizing the water.

The invention discloses a low-energy-consumption low-carbon-emission economical energy-saving urban sewage treatment method. The method comprises the steps that: 1, the to-be-treated wastewater is collected by a sewage pipe network and then is filtered by lattices, and is lifted by a pump to enter a pulse water distribution pot of a novel efficient turn-back anaerobic biochemical pool (ABR); 2, the swage subjected to the treatment in step 1 flows into a circulation-flow biological oxidization pool; 3 the effluent water from the step 2 flows into an artificial reinforced biological contact oxidization pool reconstructed by a water body from natural tunnels and reservoirs; and 4, the effluent water from the step 2 or the step 3 flows into constructed wetlands. After the sewage is treated by the above steps, the most pollutants in the water are effectively removed and the treated effluent water reaches the standard first-grade A in GB 18918-2002 ''Discharge standard of pollutants for municipal sewage treatment plant''. The energy-saving sewage treatment purification process with low cost, low energy consumption, low carbon emission and low operating cost is particularly suitable for the sewage treatment in small towns or rural areas.

The invention discloses a virtual desktop realizing system and a using method thereof. The virtual desktop realizing system comprises a plurality of virtual desktop servers, a virtual desktop gateway and a virtual desktop client-side equipment, wherein the virtual desktop servers are used for running virtual machine management programs, running virtual machine programs according to the virtual machine management programs and providing virtual desktop services via the virtual machine programs; the virtual desktop gateway is used for integrating virtual desktops of the virtual desktop servers and providing the integrated virtual desktops to corresponding virtual desktop client sides; and the virtual desktop client-side equipment is used for receiving and displaying a plurality of virtual desktops and feeding input information of external equipment to the virtual desktop servers. By the virtual desktop realizing system, complicated operation during use of the multiple virtual desktops is avoided and system performance is improved.

The invention relates to the technical operating field of intelligent substation operation and maintenance, and especially relates to an intelligent substation primary-secondary equipment state information visual displaying method based on configuration files and the G language. The visual displaying method is suitable for intelligent substations adopting the IEC 61850 standard. According to the invention, a main wiring diagram and a spaced wiring diagram of primary equipment are automatically generated in dependence on the configuration files of the intelligent substation, by associating an intelligent terminal, a merging unit and a protection device with each other, the primary equipment and secondary equipment of the intelligent substation are organically connected and visually displayed, the application field of the configuration files is expanded, the topological relation between the primary equipment and the secondary equipment and state information of the primary equipment and the secondary equipment are visually displayed in a graphical manner, operation and maintenance of the equipment are convenient, and the safety control level of the intelligent substation is improved.

The invention discloses a method of exhausting smoke independently for a tunnel, comprising procedures as follows: 1) the draft flue with independent structure is arranged outside a main tunnel section; smoke vents with regular intervals are arranged above the section of a main tunnel air channel in the direction of a vertical axis; the smoke vents are connected with the draft flues by a transverse line and a smoke exhausting fan is arranged in a smoke exhausting connecting line; 2) the draft flue, an air valve for exhausting smoke, the smoke exhausting connecting line and the smoke exhausting fan are out of use under normal conditions; and 3) smoke needs to be exhausted when fire breaks out, the air valve for exhausting smoke near smoke source should be opened to exhaust the smoke out of a cave from the tunnel through the draft flue and the smoke exhausting connecting line. The invention discloses a method of using the tunnel smoke exhausting system that is provided with an independent smoke exhausting device. The method simplifies the complexity of controlling the smoke exhausting system reduces normal operating cost and improves the efficiency of smoke exhausting and is beneficial for structure design and construction.

The invention provides an energy-saving evaporation process and an energy-saving evaporation system, belonging to secondary steam waste heat recovery in the field of high-efficiency recycling. The energy-saving evaporation process and the energy-saving evaporation system can be widely applied to sewage and wastewater treatment, desalination of sea water, solution concentration in chemical production and other industrial departments. The main process comprises the following steps: enabling raw material solution to absorb heat in an evaporator and to boil and vaporize to generate secondary steam, pressurizing and heating the secondary steam through a high-temperature high-pressure water jet circulating system, taking the secondary steam as heating steam to be returned to the evaporator, releasing the heat in the evaporator, and heating the raw material solution so as to boil and vaporize the raw material solution to generate the secondary steam; and heating the steam and condensing the steam into condensate so as to recycle the heat, discharging the condensate into a heat exchanger from the evaporator to perform heat exchange with the raw material solution, so that temperature of the raw material solution is raised, heat of the condensate is released, and the condensate is discharged. By adopting the process, waste heat in the secondary steam can be effectively utilized, the operating cost is reduced, and lots of energy is saved.

The invention discloses a remote-sensing wild automatic monitoring system and method for shallow lakes. The system comprises a supporting platform, a power supplying system, a data acquisition system, a data transmission system and a data center, wherein the supporting platform comprises a platform supported by a plurality of piles and an instrument room established on the platform; the power supplying system is used for supplying power to the data acquisition system and the data transmission system; the data acquisition system comprises a weather sensor, a hydrological sensor, a water quality sensor, a water surface imaging spectrum acquisition system, an underwater optical field simultaneous monitoring system and a camera; the data transmission system is connected with the data acquisition system and is used for transmitting various types of lake water color remote sensing information acquired by the data acquisition system to the data center. The system and the method disclosed by the invention are suitable for carrying out remote-sensing wild monitoring and researches of lake water color and algae bloom in regions in which the sites of algae bloom in an eutrophicated lake are relatively fixed and frequency of algae bloom is high.

The invention relates to a multi-sub microgrid-contained mixed microgrid system and a control method thereof. The mixed microgrid system comprises a photovoltaic subsystem, an energy storage subsystem, a direct-current bus, a DC/AC converter and an alternating-current subsystem. The control method comprises the following steps: controlling running modes of the photovoltaic subsystem and the energy storage subsystem according a power grid instruction; controlling the running mode of the photovoltaic subsystem by using a perturbation observation method-based photovoltaic generation maximum power tracking method; and controlling the running mode of the energy storage subsystem by using a method of combination of dual-closed loop control and phase-shift control. Compared with the prior art, the provided system and the method have the advantages of electrical isolation realization, high security, and stable bus voltage and the like.

The invention discloses a full-automatic resin lens coating spraying machine. The full-automatic resin lens coating spraying machine comprises a workbench, and an automatic lens conveying mechanism, a rotation transmission device and a spraying device arranged on the workbench, the automatic lens conveying mechanism comprises a lens conveying device and a lens output device, the outer side of each of the lens conveying device and lens output device is provided with a lens clamp device for connecting with the rotation transmission device, the rotation transmission device runs through a rotating plate device and an adjusting transmission device, the rotating plate device is provided with a gripping device, the spraying device is a spraying barrel located at the bottom end below the gripping device and provided with a vertical displacement device, and the full-automatic lens coating spraying machine is provided with a programmed control system to perform automatic control to finish the lens coating. The lens coating machine combines with spraying liquid to spray the lens, and then the lens is conveyed to an ultraviolet oven or an infrared oven to cure to finish the lens coating; the full-automatic resin lens coating spraying machine is simple in structure, small in volume, simple in coating technique, easy to operate and maintain, high in production efficiency and suitable for most of factories and eyeglasses stores.

The invention relates to the field of manufacturing of lithium ion power batteries, in particular to a tab cutting device of a lithium battery core and tab cutting equipment using the tab cutting device. The tab cutting device of the lithium battery core comprises a driving mechanism and a tab compressing component, wherein the driving mechanism is used for driving an upper cutter to move up and down; the tab compressing component compressing component comprises a lower cushion block and an upper compressing block; the upper compressing block vertically corresponding to the lower cushion block is arranged on the driving mechanism; the upper compressing block and the upper cutter can move together up and down; a compressible elastic supporting device is arranged between the upper compressing block and the driving mechanism; or the tab cutting device of the lithium battery core is provided with a guide device, an elastic reset device, a jacking mechanism and an elastic supporting device; the guide device is used for guiding the upper compressing block to move up and down; the elastic reset device is used for providing upward elastic support for the upper compressing block; the jacking mechanism is arranged on the driving mechanism in a guide motion manner and can downwards jack the upper compressing block; and the elastic supporting device is arranged between the jacking mechanism and the driving mechanism. By adoption of the scheme, a tab can be automatically compressed in the downcutting process of the cutter.

The present invention belongs to the field of medical equipment technology, and is especially control system for telecontrolled intelligent injection and transfusion set. The control system includes powered liquid supply unit with control circuit, the first and the second radio signal emitting/receiving units set separately in the monitoring room and the powered liquid supply unit, the computer with I/O port connected to the first radio signal emitting/receiving unit and control software, and the control circuit. It can feed the real-time running condition of the injection and decrease the labor of the medical worker and reduce error, and may be used widely in liquid injection and transfusion.

The invention discloses an all-weather solar photovoltaic cell panel tracking and angle adjustment device comprises a fixed base, a horizontal adjusting device, a verticality adjusting device, a solar photovoltaic cell assembly and a controller. The horizontal adjusting device comprises a motor, a worm and gear reducer, a driving gear and a driven gear; the verticality adjusting device comprises a bottom supporting seat, a triangular dip angle adjusting mechanism, an electromagnetic locking switch and a slide drive mechanism; the solar photovoltaic cell assembly is provided with a photoelectric sensor. By adopting the all-weather solar photovoltaic cell panel tracking and angle adjustment device, the program control of the rotation and angle adjustment of the solar cell panel in the horizontal direction and the vertical direction can be realized; moreover, the motion in the horizontal direction and the vertical direction can be self locked, the sun motion can be automatically tracked all weather, the direction and the dip angle of the solar cell panel can be self-adaptively adjusted, and the utilization rate of the solar energy can be increased. The all-weather photovoltaic cell panel tracking and angle adjustment device can be applied to a fixed place or a movable device and has advantages of simplicity and compactness in structure, stability and reliability in work, convenience in operation and maintenance, high safety and the like.

The invention discloses an internet of things gas wireless automatic remote-transmitting meter-reading system, and aims to provide a wireless gas automatic meter-reading system which is far in transmission distance, high in meter-reading efficiency, and less in personal investment, and capable of monitoring a meter running state in real time. The internet of things gas wireless automatic remote-transmitting meter-reading system is realized by the following technical scheme: an intelligent gas meter is in internet of things connection with an operator server in a mode of narrow band internet ofthings NB-IoT, a data collecting computer is loaded through an operator server, and the data collecting computer is capable of, through data collecting and data monitoring, analyzing and managing software, calculating gas charge according to a pricing standard of a gas company and providing a charging method. The data is transmitted to a database server through a computer network, a reminding short message is sent to a user or owner according to user registration information, and an inquired payment notice letter is displayed on a computer of each sales network of the gas company in a mode ofa network webpage, or corresponding information is displayed on a liquid crystal display of a user intelligent gas meter through a photoelectric or electromagnetic electronic device installed in theintelligent gas meter.

The invention relates to a double-level dynamic film filtering method used for recycling waste water generated by printing and dyeing process. The method includes the following steps: (1) the waste water is filled into an aeration biology filtering pool for biodegradation; (2) a first level filtering is carried out in a draining groove of the aeration biology filtering pool; (3) the water drained from the aeration biology filtering pool is filled into an intermediate pool containing dynamic film suspended granules; (4) the granules are settled onto the inner wall of a ceramic film tube through a interlacing filter method to form a second level dynamic film filtering; (5) when the dynamic film thickens and the jam to film holes becomes serious and a flux reduces greatly, a backwashing is carried out for the film tube. The invention has convenient operation and maintenance. When the pollution to the film of the dynamic film filtering reaches a certain degree, the flux of the film can be restored through hydraulic backwashing, with no need of replacing base material of films.

The invention discloses a series-parallel water jet carving robot with six degrees of freedom. The robot comprises a mount, a vertical column component, a lifting device, a rocker with six degrees of freedom, a parallel cutter rack with three degrees of freedom and a jet carving device, wherein a water tank is arranged in the mount, the rocker can move upwards and downwards along the vertical column under the driving of the lifting device; and the parallel cutter rack with three degrees of freedom sleeves the rocker with two degrees of freedom and can translate along the rocker with two degrees of freedom; a spraying gun in the jet carving device is arranged on the parallel cutter rack and has six spatial movement degrees of freedom. According to the carving robot, the processing operations such as blanking and cutting, carving, chamfering, routing and trimming of an acrylic product can be realized; the action force of the robot during carving operation is small; a work piece is low in temperature and keeps the shape; the influence of the acrylic material bonding on a cutter or the work piece to the precision and quality of the work piece can be avoided; and the robot further has the advantage of being compact in device structure, stable and reliable in work, convenient and fast to operate and maintain, low in entire machine cost and high in processing precision.

The invention relates to a system and a method for supervising a gas engineering project, which is used for project quality safety of gas engineering, personnel management and exact positioning of a pipeline and mainly comprises a server of a control center, a hardware fire wall, a PDA, and a GPS locator, wherein, the server consists of a web server, a database server, a file server and a backup server; the server is connected with the hardware fire wall by a net wire or a modem; after the PDA collects field engineering data and personnel positions information and transmits the data to the server by a GPRS; the GPS locator collects the three-dimensional coordinate information of all crates, equipment and turning points of a pipe network; by adopting the invention, the field operation situations can be remotely monitored at any time and the invention has the advantages of displaying the conditions of all engineering constructions comprehensively and accurately in real time and solving the problems in time, thereby ensuring the engineering construction to be completed with good quality on schedule.

The invention relates to a subsynchronous source-network combination damping inhibition method for an offshore wind plant, and the method comprises the steps: S1, building a linearized state space model of an offshore wind plant based on a double-feed wind turbine generator through a VSC-HVDC grid-connected system; S2, recognizing the subsynchronous oscillation modal of a system; S3, calculating aparticipation factor through modal analysis, and screening a state variable which is strongly correlated with the subsynchronous oscillation modal at each order; S4, analyzing the impact on the subsynchronous oscillation modal damping from the strongly correlated state variable through a root-locus method; S5, designing the parameters of DFIG_SEDC and VSC_SSDC according to a locus analysis result, and reducing the mutual impact between the subsynchronous oscillation modals at all orders, and inhibiting the plurality of subsynchronous oscillation modals. Compared with the prior art, the methodsolves a problem of cost in adding a FACTS device, and a designed source-network combination damping controller can inhibit the plurality of subsynchronous oscillation modals, improves the subsynchronous stability of a system, and guarantees the safe and stable operation of the transmission of new energy power.

The invention provides a construction creeping formwork hydraulic synchronous control system of a high-rise structure, comprising an oil tank, an oil pump, a transmission pipeline system, two oil cylinder jacking mechanisms and a synchronous control device. The transmission pipeline system comprises an oil-absorbing branch, an oil-returning branch and an electromagnetic directional valve, and either oil cylinder jacking mechanism comprises jacks, a hydraulic one-way valve and two-position three-way control valves. The construction creeping formwork hydraulic synchronous control system is characterized in that either two-position three-way control valve is provided with an opening connected with the synchronous control device, an opening connected with a corresponding jack and an opening connected with the electromagnetic directional valve; the opening connected with the synchronous control device and the opening connected with the jack are communicated when the power is on; and the opening connected with the synchronous control device and the opening connected with the electromagnetic directional valve are communicated when the power is off. The construction creeping formwork hydraulic synchronous control system can favorably solve the problems of different motion speeds and asynchrony motion in various jacking machine positions, can automatically control the lifting speed and ensures stable and synchronous lifting.

The invention provides a high-adaptability digging and anchoring integrated machine with a dual-mode anchor drilling system, and belongs to the technical field of underground coal mining equipment. The high-adaptability digging and anchoring integrated machine comprises a frame main body, a cutting system, a conveying system, a dust removing system, a multifunctional temporary supporting system, the dry-wet dual-mode anchor drilling system, an automatic lubricating system, a water-cooling spraying system, a hydraulic system and an electric control system, wherein a traveling mechanism adopts awide crawler design, so that the adaptability of the digging and anchoring integrated machine to a muddy bottom plate is improved; and the dry-wet dual-mode anchor drilling system has two functions of dry dust removal and wet dust removal, and real-time switching selection is carried out according to the geological conditions of the roadway bottom plate without replacing a drill box. By means ofthe high-adaptability digging and anchoring integrated machine, the problems of muddy of the bottom plate, poor stability of a top side wall and low tunneling efficiency in the rapid coal roadway tunneling under the complex geological conditions are solved; the integrated parallel operation of tunneling, anchor protection, transportation, dust removal and the like of a roadway tunneling working surface is realized; and the efficiency and safety of coal mining and transportation are improved.

The invention discloses an intelligent photovoltaic panel cleaning system used for operation and maintenance of a photovoltaic power station. The system is characterized in that the system comprises aphotovoltaic power station operation and maintenance big data cloud platform (4) and photovoltaic panel cleaning robots (1); the photovoltaic power station operation and maintenance big data cloud platform (4) manages the multiple photovoltaic panel cleaning robots (1) in a unified mode, receives operating data of the photovoltaic panel cleaning robots (1), performs pooled analyzing, and optimizes the cleaning processes of the photovoltaic panel cleaning robots (1); and each photovoltaic panel cleaning robot (1) comprises a suspension guide mechanism, a travelling mechanism, a cleaning mechanism, a control module and a monitoring module, and a cleaning function and a monitoring function are achieved.

The invention relates to fume purification and provides dry-method fume purification method and device for synchronous desulfurization and denitrification. The purification device is provided with an inlet flue, an absorption tower, a dust collector, a material circulating air chute, an absorbent cabin, a water box, a water pump, an atomization spray gun and an outlet flue. In the invention, an additive water solution is stored in a process water box; a primary fume enters the absorption tower through the inlet flue, mixes with an absorbent added form the absorbent cabin and cycled materials returned from the material circulating air chute, and then performs cooling and moistening reaction with the additive water solution pumped by the high-pressure pump from the water box to the atomization spray gun and sprayed by the atomization spray gun to the absorption tower; the outlet fume of the absorption tower enters the dust collector, incompletely reacted materials in the fume are collected, and the major part of the fume enters a circulating fluidize bed absorption tower with the absorbent added in the absorbent cabin through the material circulating air chute to continue the reaction; circulation continues in the same way; and the fume purification is then achieved when the cleaned fume is exhausted from a chimney from the dust collector through the outlet flue.

The invention discloses a system and a method for automatically monitoring the lake-flooding of a shallow lake; the system comprises a support platform, a power supply system, a data acquisition system, a data transmission system and a data center, wherein the support platform comprises a plurality of platforms supported by piles; the power supply system is used for supplying power for the data acquisition system and the data transmission system; the data acquisition system comprises a meteorological sensor, a hydrological sensor, a water quality sensor, a plurality of water temperature and dissolved oxygen sensors and a camera; and the data transmission system is connected with the data acquisition system, and is used for transmitting various lake-flooding information acquired by the data acquisition system into the data center with the data acquisition system. The system and the method are suitable for monitoring the algae-derived lake-flooding, which is comparatively fixed in occurrence site, high in frequency and short in duration, and difficult to catch by manual sampling or remote sensing inversion with low time resolution, of the shallow lake.