9results about How to "Easy online maintenance" patented technology

The invention relates to an integrated semi-direct-drive permanent magnet wind driven generator rotor structure, which is supported by a high-speed shaft of a gear box, and comprises a rotor bracket, a rotor shaft, a rotor shaft, a rotor shaft and a rotor shaft, labyrinth type sealing is adopted between the insulation flange plate and a gear box small end cover connected to the gear box rear end cover, a plurality of sets of double-wing type rotor magnetic poles are evenly arranged on the outer side of the rotor support in the circumferential direction, and the rotor support is formed by connecting a rotor support body, a shaft barrel and a flange. The generator rotor structure has the advantages of being compact, high in power density, low in cost, good in manufacturability, high in reliability and the like, and the problems that an existing lower half direct-driven wind driven generator is high in cost, free of shaft current restraining measures, difficult to maintain on line, large in weight, poor in sealing performance and the like are solved.

This invention belongs to the field of transmission system sealing technology and proposes a brush-type sealing structure for rotary sealing. It includes an outer retaining ring, an inner retaining ring, a first upper brush fixing ring, a second upper brush fixing ring, a first lower brush fixing ring, a second lower brush fixing ring, an upper brush filament bundle, and a lower brush filament bundle. The outer retaining ring is composed of a side wall and a bottom wall. The inner retaining ring is located in the middle of the side wall of the outer retaining ring. The second upper brush fixing ring is located on the upper surface of the upper surface of the inner retaining ring, and the second lower brush fixing ring is located on the lower surface of the inner retaining ring. The first lower brush fixing ring is located on the upper surface of the bottom wall of the outer retaining ring. The first upper brush fixing ring is located at an opening in the side wall of the outer retaining ring. An upper brush filament bundle is located between the first and second upper brush fixing rings, and a lower brush filament bundle is located between the first and second lower brush fixing rings. This brush-type sealing structure can simultaneously meet the high-temperature sealing requirements of both static and rotating interfaces, significantly reducing the risk of leakage and achieving long-term stable operation of the system.

The utility model discloses a device convenient for online maintenance of a bucket elevator, which comprises an outer shell, an oil recharging assembly is arranged on the inner side of the outer shell, and a monitoring assembly is arranged above the oil recharging assembly, and relates to the technical field of online maintenance of bucket elevators. According to the device facilitating online overhauling of the bucket elevator, through cooperative operation of the integrated monitoring assembly and the oil supplementing assembly, a closed-loop management system for chain state monitoring and dynamic lubrication is built, the device can monitor the tension of the chain in real time and synchronously feed back the tension to the control system, the control system controls the oil supplementing assembly, and the oil supplementing efficiency is improved. Compared with a traditional manual inspection mode, manual inspection frequency can be greatly reduced, shutdown maintenance time can be shortened, operation and maintenance efficiency can be remarkably improved, operation continuity of the bucket elevator and stability of the production rhythm are effectively guaranteed, meanwhile, the oil supplementing assembly can accurately control the oil quantity, and the oil supplementing efficiency is improved. And the conditions of insufficient oil injection and excessive oil injection are prevented.

This invention relates to the field of pump equipment technology, specifically to a high-temperature dual-suction centrifugal pump combined flushing structure, comprising: a dual-suction centrifugal pump, connected to a sealed cavity and a drive component; a first cyclone self-cleaning heat exchanger and a second cyclone self-cleaning heat exchanger, respectively connected to both ends of the sealed cavity, a cooling water inlet, and a cooling water outlet; a first liquid storage tank and a second liquid storage tank, respectively connected to both ends of the sealed cavity, a cooling water inlet, and a cooling water outlet; and a level gauge, a pressure detection element, and a thermometer, all mounted on the first and second liquid storage tanks. By integrating a self-cleaning structure that utilizes the kinetic energy of the flushing fluid to continuously peel off polymer deposits on the pipe wall, an anti-clogging cooling flow channel with online self-sustaining capability is established, fundamentally eliminating the flushing flow rate attenuation problem caused by localized cooling and coking of aromatics, ensuring that the inner mechanical seal always receives stable and sufficient cooling and lubrication throughout the entire operating cycle.

The utility model discloses a coal feeder coal breaking detection device which comprises a signal transmitting component and a signal receiving component which are installed on the two sides of a coal conveying belt in a coal feeder respectively, the signal transmitting component faces the signal receiving component, and the installation height of the signal transmitting component and the installation height of the signal receiving component are both lower than the height of the top of a coal falling seam on the coal conveying belt. The signal transmitting part and the signal receiving part are both in communication connection with a coal interruption detection processor, and the coal interruption detection processor is used for controlling the signal transmitting part to transmit a detection signal and controlling the signal receiving part to receive the detection signal. And when the signal receiving part cannot receive the detection signal, the signal output device connected with the signal receiving part is controlled to send out a coal interruption signal. According to the coal breaking detection device for the coal feeder, detection failure caused by mechanical reasons can be avoided, online maintenance of maintainers is more convenient, and the production process cannot be affected by maintenance.

This invention relates to the field of storage technology and discloses a protective device for a storage server and a storage server cabinet. The device includes a fixed frame with a movable frame inside, the movable frame being detachably connected to the chassis. Both the fixed and movable frames are U-shaped structures. The device also includes an auxiliary fixing mechanism and a buffer support mechanism. The buffer support mechanism includes an inclined guide groove disposed on the side wall of the movable frame, with two symmetrically arranged inclined guide grooves on the same side of the movable frame. The side wall of the fixed frame is provided with a support shaft that slides along the inner side of the inclined guide groove. This invention, through the cooperation of the inclined guide groove and the support shaft driven by a return spring, converts vertical vibration into horizontal elastic potential energy, achieving efficient multi-dimensional buffering and significantly reducing the risk of data loss due to hard drive vibration. For chassis of different weights, it provides direct push-in or step-by-step lifting installation schemes, and the rotating connection of the support shaft makes assembly smooth and convenient.

The invention belongs to the technical field of liquid lead-based cooling reactors, and particularly relates to an integrated lead-based coolant efficient purification device. The heat exchanger comprises an outer shell, the upper end and the lower end of the outer shell are connected with an upper sealing head and a lower sealing head respectively, an inner flow channel is installed in the outer shell, a bottom heat exchange tube bundle is arranged below the inner flow channel, and the bottom heat exchange tube bundle is communicated with the inner flow channel and the lower sealing head respectively; and a filtering assembly is arranged in the inner flow channel. The liquid lead-based metal cooling agent purification device can realize functional partition of bottom heat exchange, middle cooling and top trapping, and has the characteristics that the temperature of the cooling area can be adjusted in a grading manner, the filter assembly is detachable and the like, so that dissolved impurities in the liquid lead-based metal cooling agent can be efficiently and deeply purified.

The utility model relates to a rotatable coating head. The rotatable coating head comprises a rotary driving source; the coupler is connected with the output end of the rotary driving source, and the coupler is driven by the rotary driving source to rotate; the coating head is arranged on the coupler, and the rotary driving source drives the coating head to rotate at a fixed angle through the coupler, so that the coating head can rotate at least at three stations including a working station, a maintenance station and a bubble discharging station. According to the rotatable coating head and the coating equipment provided by the utility model, the coating head is driven by the rotary driving source to rotate, so that the coating head can move to the working station, the maintenance station and the bubble discharging station, the coating head can be normally used, the coating head can be conveniently maintained on line, air in the cavity of the coating head can be conveniently discharged, and the service life of the coating head is prolonged. And the product yield is improved.

The present invention belongs to the technical field of ultra-low temperature ball valves, and specifically relates to an ultra-low temperature high-performance ball valve that can be maintained online. The valve body assembly of the present invention is a three-piece design. When in use, the inlet end pipe and the outlet end pipe are welded to the inlet pipe and the outlet pipe respectively, and the valve seat assembly, the ball body, etc. are fixed in the inner cavity of the valve body main pipe fitting. When maintenance is required, the detachable fasteners connecting the inlet connecting flange, the valve body main pipe fitting, and the outlet connecting flange are disassembled to dismantle the main structure of the ball valve. The inlet valve seat assembly and the outlet valve seat assembly are both fixed at both ends of the valve body main pipe fitting by threaded connection. Therefore, the ultra-low temperature ball valve provided by the present invention can be quickly disassembled and assembled, which is conducive to online maintenance and improves the service life of the valve.