319results about How to "Unattended" patented technology

The invention provides a thermal imaging temperature monitoring device and a thermal imaging temperature monitoring system applying the same. The system comprises at least one thermal imaging temperature monitoring device, at least one signal analysis equipment and a data management platform, wherein the device is used for acquiring infrared radiation and visual light video images in a visible monitoring region, and comprises an infrared thermal imager, a visible camera, a holder and a temperature sensor; the infrared thermal imager and the visible camera are arranged on the holder; the temperature sensor is used for correcting drifting of the infrared thermal imager caused by environment temperature changes; the signal analysis equipment is used for analyzing a video signal acquired by the thermal imaging temperature monitoring device to acquire position and temperature information of each target in the monitoring region; and the data management platform is used for providing information of a monitored object for monitor staff and accepting a command of the monitor staff. The thermal imaging temperature monitoring device and the device can monitor the temperature of a human body in a large scale range of a public place, realize non-contact, rapidness and no restriction of flowing of monitored staff.

The invention relates to an energy storage power station monitoring system. The energy storage power station monitoring system is contained in an energy storage power station and is used for monitoring the operation working conditions of the energy storage power station to control and maintain the energy storage power station on the spot. The energy storage power station monitoring system comprises a server, a switch, a working station, a GPS (Global Position System), a terminal server, a remote maintenance wireless router, a fire wall, a longitudinal isolating device and a communication network, wherein the server and the working station are respectively connected with the switch to form a double-network structure; the remote maintenance wireless router, the fire wall and the working station are connected in sequence; and the longitudinal isolating device, the GPS and the terminal server are respectively connected with the switch through the communication network. The energy storage power station monitoring system can be used in large and medium energy storage systems higher than 200kw to monitor, control and manage the energy storage power stations (systems) so as to guarantee the safe and reliable operation of the energy storage power stations (systems).

The invention provides a time-phased automatic rain sample sampling device. According to the time-phased automatic rain sample sampling device, a collection hopper is mounted in the middle of an instrument top disc; the instrument top disc is mounted at the top of a barrel; solenoid valves, a pressure sensor and a rotary device are connected with a power supply and a control system; a sampling bottle tray is mounted in the barrel; a sampling bottle is located above the sampling bottle tray; a hollow rotary shaft is located at the center of the barrel; a rotary barrel is connected with the hollow rotary shaft; the rotary device is connected with the hollow rotary shaft; a water outlet of the collection hopper is located above the rotary barrel; a pipe is connected with the rotary barrel; a water outlet of the pipe is located above the sampling bottle; a part, which is close to the water outlet, in the collection hopper is provided with the pressure sensor and the solenoid valve; the pressure sensor is located above the solenoid valve and the pipe is internally provided with the solenoid valve; the hollow rotary shaft is internally provided with the solenoid valve. The time-phased automatic rain sample sampling device is simple in structure, can be used for automatically and accurately collecting rain samples at fixed time, and achieves environment-friendly and energy-saving effects.

The invention discloses an integrated real-time correction system for atmosphere convection layer and ionized layer radio wave refraction errors, which comprises a microwave radiometer, a single-station GPS (Global Positioning System) and an integrated real-time correction unit, wherein the microwave radiometer is used for detecting a convection layer refractivity profile; the single-station GPS is used for detecting an ionized layer electron density profile in real time; and the integrated real-time correction unit is used for calculating radio wave refraction error corrections in real time by adopting a ray tracing method based on the convection layer refractivity profile, the ionized layer electron density profile and the apparent distance and the apparent elevation angle parameter of a detection target, wherein the radio wave refraction error corrections comprise a distance error correction, an elevation angle error correction and a speed error correction. The integrated real-time correction device for atmosphere convection layer and ionized layer radio wave refraction errors overcomes the defect that the parameters of a convection layer and an ionized layer cannot be simultaneously detected by adopting the traditional method, realizes the real-time correction of the radio wave refraction errors of the convection layer and the ionized layer, has the advantages of high accuracy, good real-time performance, unattended operation, strong mobility, low cost, simplicity in operation and the like, and provides a technical support for improving the accuracy of systems for aerial survey, deep-space survey, ballistic trajectory measurement and the like in China.

The invention relates to the field of experiment test instrument of a soil engineering material of geotechnical engineering and in particular relates to an intelligent soil engineering shear rheometer. The rheometer consists of an experiment platform, a loading system, a data acquisition system and a data processing system, wherein the experiment platform ensures the horizontality and stability of an experiment test; the loading system consists of a vertical loading system and a horizontal loading system, and realizes the loading through weights to ensure the load accuracy; the data acquisition system consists of a displacement meter and a tension sensor, has a relatively high accuracy, transmits and receives a data signal in a wireless manner, and ensures remote processing and monitoring of an experiment; and the data processing system realizes the functions of real-time automatic acquisition, storage, display and processing of data through software development. Compared with the prior art, the intelligent soil engineering shear rheometer provided by the invention has simple operation steps and relatively high experiment accuracy, realizes remote operation, and has a relatively high degree of intellectualization and relatively great application values for a soil engineering rheological test experiment.

The invention provides a tritium-containing exhaust gas discharge monitoring automatic sampling system and belongs to the technical fields of radiation protection and environmental protection. The air inlet tube joint in the sampling system is connected with a flow control valve, solenoid valves, dust filters, a mass flow meter and a pressure meter through a gas tube and then is connected with the gas inlets of pumps, and the gas outlets of the pumps are connected with the joints of an exhaust tube through exhaust tubes; the gas inlet and the gas outlet of a total tritium sampler are connected with a gas collection tube and the exhaust tube through flexible tubes respectively; and the signal input end of an automatic control unit is in external connection with a chimney flow monitoring PLC controller, and the signal output end of the automatic control unit is connected with the total tritium sampler, the flow control valve, the solenoid valves, the mass flow meter, the pressure meter and pumps respectively. The sampling system which allows the sampling precision to be less than 1min has the advantages of intelligent regulation and control, strong practicality, improvement of the fragmentary discharge of a tritium effluent, improvement of the representativeness of a tritium monitoring sample when the concentration difference is large, mitigation of the labor intensity of an effluent monitoring sampling personnel, and improvement of the working efficiency.

The invention discloses a modular sewage treatment system which comprises a regulating tank, a primary sedimentation tank, an anaerobic tank, an oxygen-deficient tank, an aerobic tank, a secondary sedimentation tank, a filter tank, a disinfection well, a sludge tank and an air blower well. Modules are communicated with one another via pipelines, a sewage treatment working procedure can be independently completely carried out by each module, and the various modules work with one another, so that the integral modular sewage treatment system and an integral modular sewage treatment device can be formed. The modular sewage treatment system has the advantages that the modular sewage treatment system is high in technical integration level, compact in structure and small in occupied area, various treatment units are highly combined with one another, and the investment can be effectively reduced; the modular sewage treatment system is in a modular design, the various modules can be prefabricated in advance and can be quickly spliced in fields, accordingly, the design and construction periods can be shortened, technologies can be flexibly combined with one another, the modular sewage treatment system is wide in application range and high in impact load resistance and can effectively cope with change of the water quality of different types of raw water, sewage can be cooperatively treated by the diversified technologies including activated sludge processes and biological membrane processes, and nitrogen and phosphorus removal effects of the modular sewage treatment system can be improved; the modular sewage treatment system only comprises few electric facilities, is low in energy consumption and high in automation degree and can be operated under unattended conditions, and accordingly management burden can be relieved.

The invention discloses a screw extrusion type sludge dewatering machine, comprising a machine base (1), a water inlet part, a sludge exit part (41), a water outlet part, a screw shaft (2) with a spiral blade (21), as well as a filter disc assembly composed of a plurality of annular static filter discs (5) and annular dynamic filter discs (6) in a cross-interval arrangement; wherein, each static filter disc (5) is fixed relatively to the machine base (1); the internal diameter of each dynamic filter disc (6) coincides with the external diameter of the blade (21) and has line contact with the blade (21); moreover, the space between two adjacent static filter discs (5) is slightly greater than the thickness of the dynamic filter disc (6) between the two adjacent static filter discs (5) so as to form a gap (7) between the static filter discs (5) and the dynamic filter disc (5); water can flow through the gap (7). Compared with the prior art, the invention enables water to directly flow out through the gaps of the filter disc assembly so as to avoid the abrasion to the static filter discs and the dynamic filter discs caused by sludge; the device has a longer service lifer and adopts only one power source to realize solid-liquid separation, so that the energy consumption is lower; besides, the components of the device are easy to install and simple in structure to facilitate actual implementation.

The invention discloses a physical pest killing device for use in gardens. The physical pest killing device comprises a bracket, an LED (Light-Emitting Diode) pest killing lamp fixed to the bracket, and a control box, wherein a storage battery and a controller which are connected with each other are arranged in the control box; the control box is provided with a solar panel which is connected with the controller; the LED pest killing lamp is provided with a light-transmitting window; a high-voltage pest killing power grid is arranged on the light-transmitting window; an LED lamp tube, a high-voltage generator connected with the high-voltage pest killing power grid, and an infrared sensor for sensing the invasion of pests are arranged in the LED pest killing lamp; the controller is connected with the high-voltage generator, the LED lamp tube and the infrared sensor respectively. According to the physical pest killing device, pests are attracted and killed by combining a plurality of light sources and using pest attractants, a high-voltage pulse discharge net and the like, and environmental pollution is avoided. Meanwhile, by adopting the infrared sensor and an illumination sensor, intelligent control and clear of pests are realized.

The invention discloses an integrated landslide monitoring sensor and belongs to the field of sensors. The integrated landslide monitoring sensor solves the problems that an existing landslide monitoring method is long in measuring period, low in accuracy or complex in system and high in cost. The integrated landslide monitoring sensor comprises a shell, a ground auger, an installation guide pipe, a support, a communication circuit, a signal collecting circuit, multiple sets of moisture measuring units and an antenna. The shell is composed of a shell body and an upper cover, the ground auger is arranged at the bottom end of the shell body, and the installation guide pipe is arranged on the inner wall of the shell body. The support is arranged in the shell body from top to bottom. The upper end and the lower end of the support are connected with the upper cover and the ground anger of the shell respectively. The moisture measuring units are dispersed on the support. The signal collecting circuit is arranged on the support. The communication circuit and the antenna are arranged in the upper cover of the shell. The moisture content signal output end of each set of moisture measuring unit is connected with the moisture content signal input end of the signal collecting circuit. The signal collecting circuit sends collected signals through the antenna.

The invention belongs to the field of industrial waste water deep treatment equipment, and particularly relates to a multi-stage advanced catalytic ozonation water treatment device. The device mainly comprises a titanium microporous aerator, H2O2 feeding systems, liquid-state specific catalyst feeding systems, solid-state specific catalysts, a corrugated plate demister and a tail gas collection and destruction system. Waste water flows in the treatment device through a water inlet pipe, the bottom, the middle part and the upper part of the treatment device are respectively provided with a different amount of ozone feeding systems, H2O2 feeding systems, liquid-state specific catalyst feeding systems, and solid-state specific catalysts, and meanwhile, tail gas is demisted through a corrugated plate and then is collected and delivered to the destruction system for destruction, so as to avoid the pollution to an environment. According to the catalytic ozonation water treatment device, the color and COD in industrial waste water can be effectively removed, the treatment method is simple, and the cost is low and the treatment efficiency is high.

A method for rapid elimination of water blackening and smell disclosed in the invention, comprises the following steps: pressurizing pure oxygen to 0.3 MPa or more, through a mixture, rapidly mixing the pressurized pure oxygen with the flow extracted from a body of water to be treated by an axial flow pump, so as to obtain high-concentration oxygen-dissolved water; arranging a plurality of rotarynozzles in the body of water to be treated, intensively mixing the high-concentration oxygen-dissolved water output by the mixture with the body of water to be treated through the rotary nozzles to allow the dissolved oxygen concentration of the body of water to be treated to reach more than 20mg / L. According to the invention, by utilizing the pressurization of pure oxygen and the combination of static pressure and dynamic pressure, the dissolved oxygen concentration of the body of water is increased rapidly. The invention has the advantages of high efficient at absorbing oxygen, action fast,and effect long, with good application prospect.

The invention provides a self-control switch used for detecting a static human body. The self-control switch comprises a Fresnel lens detection component, a control circuit, a reduction motor and a crank-link mechanism. An infrared pyroelectric sensor detects infrared rays radiated by the human body and outputs a signal through the control circuit, the signal is amplified to trigger a controlled lamp and the reduction motor, and the reduction motor drives the crank-link mechanism to enable the Fresnel lens detection component to rotate and swing in a certain angle.

An automatic control system of a three-dimensional parking lot belongs to the technical field of the automatic control system. The invention provides the automatic control system of the three-dimensional parking lot. The automatic control system of the three-dimensional parking lot comprises a stall access sub-system and an automatic timing charge sub-system; the stall access sub-system takes charge of commanding and controlling a mechanical system device, and accurately finishing a car access action; and the automatic timing charge sub-system takes charge of finishing recording the car access time of an owner and charging parking fees.

The invention relates to a floating plant radar detection system. According to the radar based floating growth plant monitoring system, difference in microwave echo intensity between a floater and thewater surface is used, the area of a floating plant flowing through a monitoring point is measured and calculated in real time via high resolution, a growth model of the plant is established according to the areas of the plant through different monitoring points, and prediction and whole basin monitoring are realized.

The invention discloses an online ultrasonic detection apparatus and a detection method for a reactor coolant pump flange bolt. A guide rail is tightly installed on the outer circumference of a vertical reactor coolant pump body. A movable slide rest is installed on an annular guide rail. A revolution driving assembly is arranged on the slide rest. A fretting plate is installed on the slide rest through a tilting adaptive adjustment assembly, and can elastically tilt relative to the slide rest when a plate surface is subjected to an external force. The fretting plate and the slide rest are arranged parallel to each other with a gap in a lateral direction. A detection platform is installed on the fretting plate through a radial driving assembly, and comprises a supporting plate and a lifting plate, arranged parallel to each other with the gap in the lateral direction. A detection pipe is vertically arranged on the lifting plate, and comprises an inner pipe, a middle pipe and an outer pipe coaxially arranged from inside to outside. The apparatus also comprises a camera monitoring module. The apparatus can realize real-time adaptive adjustment of verticality of the detection pipe, reduces the limitation of the horizontality when the guide rail is installed on site, is convenient for quick installation and debugging on site, and is especially suitable for a special working place such as a nuclear power plant.

The invention belongs to a valve design technology, and particularly discloses a nitrogen type water-attack pressure release valve system. The nitrogen type water-attack pressure release valve system comprises a main valve, a pipeline meter, an electric control cabinet, a temperature difference stabilization bottle and a nitrogen source; a main valve inner chamber is connected with the nitrogen source and the temperature difference stabilization bottle through a valve group and pipelines; nitrogen of the main valve inner chamber is supplied by the nitrogen source; a pressure gauge for displaying setting pressure of a water-attack pressure release valve is arranged between the temperature difference stabilization bottle and the main valve inner chamber; and nitrogen pressure in the temperature difference stabilization bottle is the same as nitrogen setting pressure of the main valve inner chamber. The nitrogen type water-attack pressure release valve system is suitable for a conveying pipeline of a high-viscosity and poor-cleanliness medium; when the high-viscosity medium is conveyed, the main valve inner chamber can be filled with nitrogen rapidly, the nitrogen continuousness is good, the main valve acts and reacts sensitively, and the nitrogen type water-attack pressure release valve system is free from influence of the physical properties of the medium and is high in working environment adaptability; and the nitrogen type water-attack pressure release valve system is simple in structure and high in automation degree.

The invention discloses an automatized and integrated MBR (membrane bioreactor) automatic treatment system for ship sewage, and the system provided by the invention is characterized in that lye and / or black water in a ship are / is filtered by virtue of a quick open type coarse grid tank and then introduced to a sewage adjusting tank, the sewage and less solid substances entering the sewage adjusting tank are pulverized and circulated by virtue of a pulverizing and adjusting pump arranged at the bottom of the sewage adjusting tank and are further filtered by virtue of a quick open type fine grid tank, and the further filtered sewage is elevated to an MBR reaction tank by virtue of the pulverizing and adjusting pump through a water outflow branch pipe; the treated sewage is subjected to biochemical treatment in the MBR reaction tank and then enters into a clean water collecting tube through an MBR membrane, the clean water is disinfected by an ultraviolet disinfector, and the disinfected clean water can be directly introduced to a clean water tank or discharged. The system provided by the invention has the advantages of compact structure, small occupation area, unattended operation, automatic running, simplicity and convenience for maintenance, stable running and suitability for the requirements in ship navigation.

The invention discloses a sweater desalting device of an off-grid type photovoltaic photo-thermal coupled heat pump. The sweater desalting device of the off-grid type photovoltaic photo-thermal coupled heat pump comprises a direct-expansion type solar heat pump system, a material water tank, a heat storage water tank, a flash tank and a master controller, wherein the direct-expansion type solar heat pump system comprises a photovoltaic photo-thermal evaporator; the photovoltaic photo-thermal evaporator is connected with a second tee joint, a gas-liquid separator, a compressor, a condenser, a liquid storage device, a drying filter, a visual liquid lens, a throttling device and a first tee joint by a pipeline in sequence; and the first tee joint is connected with a first solenoid valve, a regenerative heat evaporator, a condensing evaporator, a second solenoid valve and the second tee joint by a pipeline in sequence. The invention further discloses a method for desalting the sweater by utilizing the seawater desalting device of the off-grid type photovoltaic photo-thermal coupled heat pump. According to the seawater desalting device and the seawater desalting method of off-grid type photovoltaic photo-thermal coupled heat pump disclosed by the invention, the renewable energy sources can be sufficiently utilized and the energy utilization efficiency is improved, so that the off-grid operation of the sweater desalting device in remote areas including an island without power supply and the like is realized.

The invention discloses a ship urea solution preparation device which comprises a material feeding system, a dissolution stirring device, a water supplying device, a urea solution storage tank and a control system, wherein the material feeding system is used for supplying and transferring urea powder; the urea powder is fed into the dissolution stirring device from the material feed opening of the dissolution stirring device; a concentration sensor is arranged in the dissolution stirring device; a water pump is arranged between the water supplying device and the dissolution stirring device; a urea solution injection-in pump is arranged between the urea solution storage tank and the dissolution stirring device; the control system comprises a judging device; the judging device is connected with the concentration sensor and can be used for judging whether water needs to be injected in further or not according to signals of the concentration sensor; the control system is used for controlling the water pump to inject pure water with the set amount in batches into the dissolution stirring device according to signals of the judging device. The invention also provides a ship urea solution preparation method. According to the ship urea solution preparation device and method, a urea solution is prepared in a manner of injecting the water in batches, and the influences of moisture absorption of the urea powder and scattering and leaking of the urea powder on the preparation of the urea solution can be effectively solved, so that the preparation precision of the urea solution is improved.

The invention discloses a fish catching method and device. The device comprises a net cage part with buoyancy, a fixing part arranged below the net cage part to position the cage net part in water and a winch device used for controlling the net cage part to sink or float. The fixing part is provided with a pulley device, and the net cage part is connected with the winch device through ropes via the pulley device on the fixing part. The device can be freely installed at any place in a water area regardless of the depth or size of the water area; being free of dependence on the bank of the water area or a power source, the whole device is totally independent. The device is low in manufacturing cost, easy to install and operate and fast to move. All the work can be completed by one person, all-weather fish catching can be achieved, the automation degree is high, manual guard and field operation are not needed, the catching amount is large, the catching efficiency is high, labor and time are saved, and the catching cost is lowered.

The invention provides a full-automatic guide valve comprehensive performance testing platform, which is completely fully automatic, unmanned and unattended, has the advantages of stability in equipment working, accurate detection and high reliability and is suitable for a modern automatic production mode. The full-automatic guide valve comprehensive performance testing platform comprises a feeding device, a reshaping device, a sealing device, a testing frame, a detection valve terminal and an electric control system, wherein the feeding device, the reshaping device, the sealing device and the detection valve terminal are all mounted on the testing frame; the feeding device is used for conveying test pieces to pass through the reshaping device, the sealing device and the detection valve terminal in sequence and putting into an appointed region according to a detection result; the reshaping device is used for carding a test piece pipeline into a straight regular product, wherein all pipes are parallel to the same plane and ESC pipes are arranged at an interval of 36mm; the sealing device is used for automatically sealing all the pipes of the test pieces before detection; the detection valve terminal is used for detecting properties of all the test pieces.

The present invention discloses a container formation storage battery cooling apparatus and a cooling operation method. A purpose of the present invention is to solve the defects of the poor cooling effect and non-uniform cooling effects on different batteries of the existing container formation storage battery cooling water tank. The container formation storage battery cooling apparatus comprises a cooling tank, wherein the bottom surface of the cooling tank is provided with a water inlet hole and a water outlet hole, the water inlet hole is connected with a water inlet pipe, the water outlet hole is connected with a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively provided with a water inlet electromagnetic valve and a water outlet electromagnetic valve, a temperature detection device is arranged in the cooling tank, the bottom of the cooling tank is provided with a plurality of pulse gas blowing holes, each pulse gas blowing hole is connected with a pulse gas blowing pipe, each pulse gas blowing pipe is provided with an electromagnetic pulse control valve, the water inlet electromagnetic valve, the water outlet electromagnetic valve, the temperature detection device and the electromagnetic pulse control valve are electrically connected with a controller. With the cooling apparatus, the battery cooling effect is good, the uniformity of the cooling effect on different batteries in the cooling tank is good, the service life of the storage battery is prolonged, and the product quality is ensured.

The invention discloses an intelligent property management and control system, which comprises a property management system, wherein the property management system comprises a water and electricity acquisition module, an environmental detection module, an anti-theft alarm module, a security module, a lighting module, a switch, a management host, a video wall, a display screen and a warning lamp. The intelligent property management and control system relates to the technical field of property management and control. The intelligent property management and control system achieve the purpose of facilitating integrated recording of water meter and electric meter information of owners without requiring the staff to go to the houses of the owners for recording, reduces the burden on the staff, prevents the owners from being disturbed, cam store the recorded results for the owners and the staff to check at any time, can remind the owners promptly, takes rescue measures, maintains the personaland property safety of the owners, prevents the sneaking of the criminals, can intelligently manage the garage without manual supervision, automatically turn on the illumination facilities when the illuminance is insufficient, and facilities the life of the owners.

The invention discloses a double-source closed type efficient and energy-saving drying system. The double-source closed type efficient and energy-saving drying system is characterized in that the system comprises a drying chamber, a burner, a heat pump and a circulating air pipe; the circulating air pipe comprises an air outlet pipe and an air inlet pipe, the air inlet pipe is connected with an air inlet of the drying chamber, and the air outlet pipe is connected with an air outlet of the drying chamber; the heat pump is arranged on the air inlet pipe, and an air heat exchanger is arranged between the air outlet pipe and the air inlet pipe; and the air heat exchanger is connected with the burner and heated through the burner. A full-automatic constant-temperature high-air-volume low-humidity drying process is adopted by the system, temperature rise is fast since the burner and the heat pump are combined, and drying time is shortened; a dehumidifier of a traditional drying system is replaced by the internal heat pump, so that efficiency is higher and more energy is saved; and the circulating air volume is randomly set in sealed space, and turbulent flow is formed by bottom air guiding and an auxiliary fan, so that no dead corner exists in drying, and the uniform drying effect is guaranteed. Because of closed circulating drying, external pollution is avoided, mosquitoes and dust cannot enter the system easily, and the material quality is guaranteed. No dead angle exists because of strong wind convection, materials do not need to be overturned, and full-automatic control is achieved.

The invention provides an industrial wastewater comprehensive treatment system which comprises a front-end filter unit, a front-end grease collector, a central water treatment device, a back-end COD (chemical oxygen demand) improvement device and a back-end water purifier which are sequentially connected. The invention also provides an industrial wastewater comprehensive treatment technique of the treatment system. The system and technique can extract water in the industrial wastewater and leave over pollutants, so that the treated industrial wastewater can reach the water quality standard for drinking water; and the system adopts the pure physical separation technique, does not need any chemical reagent, can not cause secondary pollution, has low sensitivity for the components of the fluid to be treated, and does not need to greatly adjust the technique and equipment system due to the component difference of the treated fluid.

The invention relates to a preparation method of a lubricating oil tackifier with high shear resistance. The product quality is effectively controlled by means of an efficient mass transfer and heat transfer microchannel chemical reactor in combination with a thermal catalytic degradation, high-temperature thermal degradation and oxidative degradation combined process, the shear resistance of a product is sufficiently improved, the lubricating oil tackifier can be widely applied to top-grade internal combustion engine oil, hydraulic oil and gear oil products, and the preparation method is simple in process operation, mild in condition and environment-friendly.

The invention discloses a high ammonia-nitrogen wastewater treatment method. Wastewater is subjected to pretreatment through an air floatation device, a sand filtration device, a microfiltration device and an ultrafiltration membrane, and then the treated wastewater enters an RANS membrane system. The high ammonia-nitrogen wastewater flows in a membrane fiber shell side, and a dilute acid serves as an absorption liquid and flows in the membrane fiber tube side in a cross-flow mode. Under an alkaline condition (the pH value is equal to 10.5-12), free ammonia molecules in the wastewater penetrate through membrane holes of a strongly hydrophobic membrane in the RANS membrane system, enter the membrane fiber tube side, and rapidly react with the acid in the tube side. After the wastewater is subjected to ammonia nitrogen removal treatment, the ammonia nitrogen value of outgoing water is reduced to 40 mg / L, and the salt content of the ammonium salt solution is 10-30%.