37results about How to "Ease of maintenance" patented technology

An unmanned aerial vehicle remote power transmission line intelligent inspection system and method are disclosed. The system is composed of a remote control center, an unmanned aerial vehicle nest and an unmanned aerial vehicle, the remote control center sends a formulated inspection task GPS inspection route to a flight control module, and the unmanned aerial vehicle makes preparations before takeoff; the battery state of the unmanned aerial vehicle is read, and a landing point and a charging plan are formulated according to the GPS routing inspection route; the unmanned aerial vehicle takes off remotely and autonomously according to the inspection task; an image acquisition module uploads the acquired images to the cloud through a wireless communication module for intelligent identification and analysis of inspection image defects; and the unmanned aerial vehicle flight control module generates an allowable flight route, the remote control center sends a termination command to terminate task execution, landing and return operations are performed, and the unmanned aerial vehicle flies to a target nest after inspection. According to the invention, manual intervention operation is greatly reduced, the error rate is reduced, the inspection time is saved, the inspection efficiency is improved, the workload of manually identifying defect images is greatly reduced, and the inspection efficiency and quality of the power transmission line are improved.

A utility controller and a service panel combination for limiting access to authorized persons. A sub-region of the service panel contains at least one electrically-operated (e.g., solenoid-operated) valve that is connected to service utilities (e.g., water or gas) piping so as to control flow there-through. According to one embodiment, another sub-region (i.e., a utility controller region) contains electrical controls for controlling the valve(s) and communicating with other services such as a remote transmitter, or an auxiliary monitoring system (e.g., a fire alarm system). In another embodiment, the service panel is remotely located with respect to the utility controller. The controller facilitates provision of numerous features including: emergency shutdown by anyone while permitting reset only by authorized personnel; modular construction so as to facilitate installation of the system. Various jumper terminals and connecting wires provide for programming of the system to accommodate a variety of applications.

An improved system for transferring heat, utilizing diols, specifically 1,3-propanediol (PDO). The system reduces the energy consumption, maintenance costs, corrosion, toxicity, and the risk of fire associated with such heat-dependent processes. Unlike traditional hydrocarbon heating fluids, diols do not require draining and replacement if a purifier is installed in the system. Business methods are also disclosed.

The invention relates to a rod position measuring device with a double-spiral coil cascade structure, which belongs to the technical field of rod position measurement and control of reactors, and is characterized by comprising a series of measuring double-spiral coils for rod position measurement, a reference double-spiral coil, a measuring mandrel formed by staggered arrangement of a magnetic conductive material section and a non-magnetic conductive material selection and coaxially connected with a driving shaft of a control rod, a reference mandrel with the same natures, material and structure with the non-magnetic conductive material section in the measuring mandrel, a field wiring terminal block box, an excitation signal generating unit, a signal conditioning unit and an information processing unit, wherein an industrial computer in the information processing unit determines the state of each measuring double-spiral coil by judging the signal voltage difference between each measuring double-spiral coil and the reference double-spiral coil under the action of the same excitation signal, combines and obtains the corresponding position information of the rod position. The rod position measuring device has the advantages of high reliability, high signal-to-noise ratio and on-line fault diagnosis of the coils.

The present invention provides a diaphragm valve which facilitates seat replacement, and a seat holder unit for a diaphragm valve. The diaphragm valve (1) is provided with a retainer (12) that holds the seat holder (5) in place. The seat holder (5) holds a seat (4) and is detachably positioned with respect to the body (2). The retainer (12) is approximately cylindrical in shape, has an inward-facing flange part (22) that receives the outer peripheral edge of the seat holder (5), and can be detachably mounted to the diaphragm holding members (10, 11) while holding the seat holder (5).

An object of the present invention is to provide a magnetic field forming device for active water capable of uniformly forming a high magnetic field free from any unevenness in its intensity, activating a fluid regardless of the orientation of magnetic polarity of the magnets, bringing about excellent assembling efficiency not requiring assembling while checking the orientation of the magnets, being manufactured at a high product yield ratio without occurrence of defective products resulting from a difference in the orientation of the magnets, remarkably easily taking out the magnets without use of any exclusive special tool, and removing rust and stains adhered to the magnets by wiping off the magnets one by one, the maintenance efficiency of which is excellent. The magnetic field forming device for active water in which a flow path of a fluid is formed in a through hole, and the same magnetic field forming device includes a rod-shaped magnet 2 disposed with predetermined spacing from the inner wall of the through hole and having a fluid flow path formed between the inner wall and the side 3; a guide member 5 adhered to and fixed to the end part of the magnet 2, which is inserted into the interior of the through hole; and a communication portion 8 formed at the guide member 5, which communicates with the fluid flow path.

A device for cleaning the internal surface of a pipe has a main pipe axis. The device further includes one or more generally tubular conduits, including a conduit wall, at least one of the or each tubular conduit including an inlet to receive pressurised gas into the tubular conduit. One or more nozzles is deployed around the outside of the or each tubular conduit, with the or each nozzle being in fluid connection with the tubular conduit. At least one nozzle is directed at least partially to direct fluid in a direction non-perpendicular to the main tubular conduit axis, with one or more spacer elements to hold the or each tubular conduit in spaced relationship to a pipe.

The present invention relates to a screening device, in particular to a fine sand screening device capable of automatically discharging coarse sand, comprising a sand feeding cylinder assembly, a rotating disk assembly, a sand screening assembly, a coarse sand collection assembly, a sand screening drive assembly and The installation frame assembly, the sand inlet barrel assembly includes the sand inlet barrel body, the sand falling pipe, the sand rotating anti-blocking device, the upper supporting plate, the fixing column and the lower supporting plate; the lower end of the sand inlet barrel body is welded and connected to the falling Sand pipe; the lower end of the sand rotating anti-blocking device is connected to the inside of the sand inlet barrel body in rotation, and the upper end of the sand rotating anti-blocking device is connected to the upper supporting plate in a rotating fit, and the lower end of the upper supporting plate is fixed by The column is connected to the lower supporting plate; the sand falling pipe is connected to the lower supporting plate through threads. The invention can effectively solve the problem that the sand screening device in the prior art cannot automatically discharge the remaining coarse sand after fine sand screening; the invention can automatically discharge the coarse sand without manual cleaning, and its sand screening efficiency is high, and Sand works better.

A centrifuge purification filter is provided for purifying a fluid, such as engine lubricating oil. A housing with an integrally cast top portion contains a centrifuge rotor supported on a spindle, which in turn is supported at its top by the integrally formed housing top and retained and radially supported at its opposite end by a removable housing cover. The rotor includes a shell which receives contaminated fluid from the housing inlet via a hollow bore in the spindle. Fluid is discharged through tangential rotor outlet nozzles on the rotor cause the shell to rotate at high speed and thereby cause contaminants in the fluid to migrate to the shell wall. The integrally formed housing top portion may include a bore intersecting the inlet passage, wherein a flow control valve prevents flow into the rotor until inlet pressure reaches a predetermined level and in the event of excessive inlet pressure.

The invention discloses a GIS-based hydrologic station data management system. The system is composed of a data layer, a collection layer, a processing layer and a display layer, wherein the data layer is collected and used data of different data types; according to the collection layer, all the data in the data layer is collected through a protocol adapter; the processing layer is the core of themanagement system and undertakes actual service processing to clean, integrate, correlate, calculate and summarize all the data; and the display layer displays an analysis calculation result througha WEB interface. The processing layer comprises a data analysis module, a data standardization module, a data summarization module, a correlation analysis module, a GIS rendering module, a data calculation module and a database. The system can be persistently saved through a GIS and a chart, maintenance and query are performed through the GIS and the chart, a correlation collision analysis function of hydrologic station data and other industrial data is provided, the security and usability of the hydrologic station data are maintained, and a value analysis method for the hydrologic station data is provided.

A closed loop roller leveler assembly for measuring flatness of a strip, having a roller leveler, a flatness sensor, and at least one arm operatively connected to the flatness sensor to raise and lower the flatness sensor. The flatness sensor has a plurality of sensor rolls, at least one load cell, and at least one laser sensor which is mounted on a positioner which oscillates the laser sensors across a width of the strip.

An image recording apparatus includes: a conveying section that accelerates a long-length recording medium to a predetermined speed, conveys the long-length recording medium, and decelerates the long-length recording medium to a stopped state; a recording section that records an image on the recording medium, and forms a first test pattern on the recording medium after the image is recorded at a time of deceleration of the recording medium; a reading section that reads the image that the recording section has recorded and the first test pattern that the recording section has formed; an image converting section that converts inputted image data into image data that the recording section outputs; a maintenance section that performs maintenance of the recording section; and a controller that decides, on the basis of first data obtained by reading the first test pattern, whether or not the maintenance is needed and the content thereof.

The invention discloses an arrangement structure of a single-way belt conveyor under a single-line train coal-unloading ditch. The arrangement structure of the single-way belt conveyor under the single-line train coal-unloading ditch is characterized in that the coal-unloading ditch is arranged on the lower part of one railway line; a ditch body of the coal-unloading ditch is of an inverted trapezoidal structure; a coal bearing platform is arranged on the bottom part of the coal-unloading ditch; a gap type outlet is formed in the center of the coal bearing platform; a cross beam is arranged onthe upper part of the gap type outlet; a clearance is arranged between the gap type outlet and the cross beam; a double-side impeller coal feeder for picking coal is arranged on the lower part of thecoal bearing platform; and the belt conveyor for conveying the coal is arranged on the lower part of the double-side impeller coal feeder. On one hand, the single-way belt conveyor is arranged in themiddle, and the double-side impeller coal feeder is utilized for picking the coal, and the width of a bottom ditch opening is increased, so that the height of the underground part of the coal-unloading ditch is greatly reduced; and on the other hand, the single-way belt conveyor under the train coal-unloading ditch is arranged in the middle, so that an operation and overhaul space on the lower part of the coal-unloading ditch is greatly optimized.

There are provided a plug built-in type optical measurement probe capable of obtaining a more accurate measurement value, and an optical measurement device provided with the same. A spark section and a light receiving section are held by a plug main body while being arranged next to each other in a protruding manner such that an end face of a holder is arranged at a position where discharge light from the spark section does not enter the field of view of the light receiving section. Accordingly, the light receiving section can be held in a manner protruding from the plug main body, and entering of the discharge light from the spark section can be restricted by the holder of the light receiving section. That is, by arranging the end face of the holder at a position where the discharge light from the spark section does not enter the field of view of the light receiving section, the light receiving intensity of the discharge light from the spark section can be prevented from being added to a measurement value, and it is possible to measure only the light generated at the time of combustion, and thus, a more accurate measurement value can be obtained.

The invention provides an evaluation system based on the service life of a power transmission line. The system calculates the characteristic value, the variance contribution rate and the cumulative contribution rate of each principal component through a principal component analysis method, builds an aging evaluation model, and calculates the actual aging degree value of an OPGW optical cable. According to the system, through the OPGW optical cable aging evaluation model, real-time monitoring of various key parameters of the OPGW optical cable is realized.

The invention discloses an automatic meteorological station wind sensor anti-freezing control system with the optoelectronic isolation function. The automatic meteorological station wind sensor anti-freezing control system is mainly composed of a single-chip microcomputer, a communication interface circuit and an optoelectronic isolation driving circuit, wherein the communication interface circuit and the optoelectronic isolation driving circuit are connected with the single-chip microcomputer. The communication interface circuit is connected with a parameter sampling circuit, the optoelectronic isolation driving circuit is connected with a heating circuit, the single-chip microcomputer, the communication interface circuit and the optoelectronic isolation driving circuit are all connected with a power management circuit, and the communication interface circuit and the parameter sampling circuit are further provided with command control circuits. The automatic meteorological station wind sensor anti-freezing control system has the advantages that the heating circuit is installed in a sensor and does not affect a wind flow field, mechanical friction influence is not generated, and therefore accuracy of observed data is not affected. The life expectancy and period of the heating circuit is more than two years, the system can be inspected and maintained according to the period of verification of an automatic meteorological station, and a resistance heating wire device is easy to replace and maintain and low in cost.

The manufacturing method of non-woven fabrics resin tracery board relates to a manufacturing technique of board used for decoration. Both surfaces of the non-woven fabrics are pasted with sizing agent of non-saturation resin and stone dust. The starching semi-finished product surface is covered with stereo tracery film, after rolling level, then heat setting, and at last, temperature reduction and clipping shape; the sizing agent comprises non-saturation resin, stone dust, firming agent and accelerant. Because one surface of the product has stereo tracery film, the formed product has stereo tracery. And because the invention uses non-woven fabrics as main matrix material, the formed product can not only replace the current wood board but have strong high-impact strength, the heat preservation and insulation effect is good and it has buffering toughness and tensile strength, the bent toughness is higher than the current wood board.

The invention discloses a fish and vegetable symbiotic ecological circulation culture system, and belongs to the technical field of aquaculture, the fish and vegetable symbiotic ecological circulation culture system comprises a fish culture pond and a culture box, the top end of the fish culture pond is provided with a fish culture tank, the bottom of the fish culture pond is provided with a recovery water cavity, the left side of the fish culture tank is provided with a driving mechanism, and the driving mechanism is in transmission connection with a sliding block; a mounting frame is fixedly connected to the end, close to the inner wall of the fish culture tank, of the sliding block, a scraping plate is fixedly mounted on the outer side wall of the mounting frame, the scraping end of the scraping plate is attached to the inner wall of the fish culture tank, a planting tank is formed in the cultivation box, and a spraying assembly is arranged at the top end of the cultivation box. Through separated arrangement of the fishpond and the cultivation box, fish cultivation work and vegetable cultivation work can be carried out respectively, so that subsequent cultivation and maintenance work is more convenient, meanwhile, when fish fishing work is carried out, convenience and rapidness are achieved, working efficiency is high, and practicability is improved.

The invention discloses a multifunctional low-energy-consumption domestic sewage treatment device, comprising a device body and a treatment chamber arranged in the device body, wherein the top of thetreatment chamber is provided with and communicates with a liquid inlet channel; a sector chamber is arranged in and penetrates the liquid inlet channel; the top of the liquid inlet channel is provided with and communicates with a liquid accumulating chamber; the top of the liquid accumulating chamber is provided with and communicates with a liquid storage chamber; liquid discharging chambers symmetrically arranged at left and right positions are mounted in and communicate with the bottom inner wall of the treatment chamber; the bottoms of the liquid discharging chambers are provided with andcommunicate with a pressure chamber; a first motor is embedded into the bottom inner wall of the treatment chamber; the tail end of the top of the first motor is in power connection with a first rotating shaft extending upward and downward; the tail end of the top of the first rotating shaft is provided with a rotary water sprinkling disc; and a water accumulating groove with an upward opening isarranged in the top end surface of the rotary water sprinkling disc. The multifunctional low-energy-consumption domestic sewage treatment device of the invention has the advantages of simple structure, convenient operation, improved energy utilization, energy conservation, environment friendliness and high practical performance.