8results about How to "Guaranteed long-term stable operation" patented technology

This invention discloses a rotary jet suction dredging device, comprising a floating platform on which a vacuum jet pump connected to a drive mechanism and a guide mechanism is mounted; the drive mechanism includes two mutually perpendicular hydraulic telescopic rods, one end of which is hinged to the floating platform, and the other end of which is connected to the side wall of the vacuum jet pump via a universal joint; the guide mechanism includes inner and outer guide sleeves fitted around the vacuum jet pump, the inner guide sleeve and the vacuum jet pump being connected via coaxial left and right rotating shafts, and a coaxial front and rear rotating shaft passing through the outer guide sleeve, one end of which is connected to the inner guide sleeve, and the other end of which is connected to the floating platform, with the front and rear rotating shafts perpendicular to the left and right rotating shafts; the outer guide sleeve is provided with front and rear clearance grooves to accommodate the passage of the inner guide sleeve; the vacuum jet pump is connected to a suction head, a high-pressure air supply pipe, and a sludge conveying pipe. This invention achieves dredging needs covering all water depths from shallow to deep water, with high dredging efficiency and safe and simple operation.

The present application belongs to the technical field of wastewater sampling, in particular to a water body sampling device for industrial wastewater tracing, comprising a mounting part, a sampling mechanism, a detection mechanism, a wiping mechanism and a backflow mechanism; the mounting part comprises a buoyancy disc and a mounting box, the buoyancy disc is fixedly installed on the upper end face of the mounting box; the sampling mechanism comprises a control pump, a conveying pipe and a filter, the control pump is fixedly installed in the buoyancy disc, the filter is connected with the input end of the control pump, and the conveying pipe is connected with the output end of the control pump; the detection mechanism comprises a carrier and a sensing plate, the sensing plate is obliquely installed on the outer wall of the carrier, and the carrier is fixedly installed on the inner wall of the buoyancy disc; the wiping mechanism comprises a sliding block and a wiping layer, the sliding block is slidingly arranged on the outer wall of the carrier, and the wiping layer is elastically arranged on the bottom of the sliding block; the backflow mechanism comprises a storage cylinder and a backflow pipe; through the cooperation of the above structure, the accuracy and reliability of the industrial wastewater tracing data are improved, and the online continuous sampling and detection mode truly meets the high-precision requirement.

This invention relates to the field of catalysis, and discloses a bilayer gradient acidic core-shell molecular sieve catalyst, its preparation method, and its applications. The bilayer gradient acidic core-shell molecular sieve catalyst comprises a ZSM-11 core layer and a BEA shell layer covering its surface; the acid strength of the ZSM-11 core layer is 0.40–1.20 mmol / g, and its average thickness is 0.5–3 μm; the acid strength of the BEA shell layer is 0.10–0.40 mmol / g, and its average thickness is 20–300 nm. This catalyst possesses a bilayer gradient acidic core-shell structure. When applied to the catalytic synthesis of tert-butylamine from isobutylene or its precursors (alcohols / ethers), it can improve single-pass conversion while maintaining high selectivity, and significantly reduce the carbon deposition rate and bed pressure drop growth, achieving long-term stable operation.

This utility model relates to the field of wire and cable technology and discloses a high-strength, tensile-resistant, and wear-resistant wire, including a wear-resistant sheath. Spherical protrusions are fixedly connected to the surface of the wear-resistant sheath, and reinforcing strips are fixedly connected to the inner cavity of the sheath. This utility model significantly improves the dynamic durability and resistance to mechanical damage of the wire through a multi-layer composite structure design. The three-layer composite sheath, combined with the surface spherical protrusions, forms a gradient wear-resistant system, improving wear resistance compared to traditional single-layer sheaths. Simultaneously, the aramid galvanized steel wire braided structure of the inner support layer and the anti-slip texture within the insulation layer's holes form a three-dimensional interlock, solving the problem of interlayer slippage caused by repeated bending. The multi-strand tinned copper wire strands in the conductor layer work synergistically with the reinforcing strips of the inner support layer, significantly increasing the wire's tensile strength at break and meeting the requirements of extreme working conditions. Furthermore, the precise engagement of the spiral protrusions and anti-slip textures effectively absorbs torsional stress, effectively improving the wire's service life.

The invention relates to an automatic sampling and cooling device for a modified asphalt production line, and relates to the technical field of asphalt production, the automatic sampling and cooling device comprises a frame body, a pneumatic angle seat sampling device is arranged on the frame body, the pneumatic angle seat sampling device comprises an outer shell, an opening and closing plate, a first piston and an air cylinder, a quantitative sampling cavity is arranged below the opening and closing plate, and a second piston is arranged below the outer shell. A rotary sample receiving and cooling device is further arranged on the frame body, the rotary sample receiving and cooling device comprises a motor, a rotating rod, a circular metal disc and a fan, a flow guide pipe is communicated with the interior of the first piston, and circular grooves distributed in an annular array are formed in the circular metal disc. The pneumatic angle seat sampling device is matched with the non-return assembly and the closing assembly, so that whole-process sampling automation and quantitative accurate control are realized, closed quantitative sampling can be completed without manual operation, the risk of high-temperature scalding is avoided, the problem of unstable manual sampling amount is solved, and the sampling efficiency is improved.

The invention belongs to the technical field of elevators, and discloses an elevator emergency control device which comprises a main power supply mechanism, a cabinet body and a standby power supply mechanism. A power supply switching controller is arranged in the cabinet body, a relay is arranged in the cabinet body on one side of the power supply switching controller, and a standby power supply mechanism is arranged in the cabinet body on one side of the main power supply mechanism; dual-power-supply configuration is adopted, four-stage power supply guarantee of the main power supply, the UPS, the standby power supply and the manual generator is constructed, power is supplied by the main power supply in a normal state, the UPS has no flash stop power supply for about half an hour when the main power supply is powered off, the power is automatically switched to the standby power supply after the power is used up, short-time flash stop is only generated for 0.03 second, the main power supply and the standby power supply are powered off, the UPS has no power, and the generator can be manually started. By matching with real-time monitoring, ARD low-speed leveling, door machine delay door opening and rapid manual switching, people trapping can be avoided, safety can be guaranteed, electrical risks and operation and maintenance cost are reduced through graded shunt protection, remote supervision is achieved through a communication interface, and safety and benefit are both considered.

This invention relates to the field of artificial intelligence technology, specifically disclosing a fault early warning analysis method and system for electrical equipment in stainless steel product forming based on artificial intelligence. The method includes: normalizing and denoising multi-source operating data of the electrical equipment to obtain an operating data sequence; extracting high-dimensional features from the operating data sequence to obtain a deep feature vector; dynamically defining early warning thresholds based on historical normal operation records to obtain an early warning threshold range; comparing the deviation between the deep feature vector and the early warning threshold range to obtain an initial early warning signal; searching and matching the initial early warning signal, and encoding and encapsulating it into an early warning maintenance instruction according to the matched maintenance guidance scheme; monitoring the response to the early warning maintenance instruction, and updating the response feedback data and the updated equipment status data to the maintenance knowledge base. This invention can improve the efficiency of fault early warning analysis for electrical equipment in stainless steel product forming.

The utility model relates to a light -throwing lamp technical field discloses a kind of novel LED light -throwing lamp, including aluminium shell, high thermal conductivity aluminium substrate is arranged at lower end place inside aluminium shell, the front side of high thermal conductivity aluminium substrate is provided with patch light source, the front side of patch light source is provided with anti-UV optical lens, aluminium shell inside edge place is provided with nano PC reflector sheet;Anti-UV waterproof silica gel ring is arranged between the nano PC reflector sheet and aluminium shell, the front side of aluminium shell is fixed with toughened glass face cover by a plurality of bolt buckles or face frame cover setting.The utility model in the present application has bolt buckle fixing and face frame cover fixing two kinds of LED light -throwing lamps, both share heat dissipation advantage, high thermal conductivity aluminium substrate, die-cast aluminium shell and fin group cooperation, double through-hole helps heat dissipation.Threefold protection reaches IP68 level, general structure can be accurately adjusted angle, power groove is heat insulation, the former is convenient to maintain, the latter is wind pressure resistance, break through the heat dissipation of traditional light -throwing lamp, adaptation limitation.