46results about How to "Avoid unexpected breakdowns" patented technology

The invention relates to a scheduled overhaul management module for an EAM system of a power plant, which comprises an overhaul item projecting submodule for generating overhaul items and setting process control conditions of each overhaul item; and an overhaul process management submodule for searching the items to be overhauled in the system according to the process control conditions, generating an overhaul task list and controlling the items of the overhaul items in the task list. Preventive equipment maintenance is to maintain equipment periodically according to a period and a conventional time interval and is a normal measure for equipment maintenance and management. A plurality of equipment can be prevented from sudden failures and avoided from halt out of the schedule through reasonable preventive maintenance. Equipment scheduled overhaul management is to track and manage the whole process of the preventive maintenance of the equipment, and can greatly improve the working efficiency of equipment manager, reduce labor intensity, greatly ensure the normal running of the equipment and further improve the production rate of the equipment.

The invention relates to seawater desalination equipment and particularly relates to a zinc alloy internal thread reef seawater desalination device. An indoor entertainment device shaken by single hand is used for driving a primary gearbox to rotate at a high speed; a transmission pipe sealing hole which penetrates through a separating wall from inside to outside via a zinc alloy internal thread triangle extension coupler is used for driving a single-stage centrifugal pump to obtain seawater from a seabed water filter via a lifting water inlet pipe; the obtained seawater passes through a lifting water outlet pipe and a water pipe sealing hole penetrating through the separating wall from outside to inside and then is connected into a pretreatment standby tank; an indoor entertainment device shaken by double hands is used for driving a multi-stage centrifugal pump to rotate at a high speed; a water absorption pipe of the multi-stage pump is connected to the pretreatment standby tank; a water outlet pipe of the multi-stage pump is connected with a front osmosis membrane cavity of a reverse osmosis membrane assembly; the strong saline water intercepted by the reverse osmosis membrane assembly is discharged in a pressure maintaining manner; the fresh water passing through the reverse osmosis membrane assembly flows out of a rear osmosis membrane cavity and then flows into an activated carbon adsorption tank to be treated so as to obtain the standard drinking water conforming to the domestic drinking water standard; finally, the standard drinking water is sent into a fresh water storage tank and is supplied to people on a reef to daily drink.

The invention relates to a predictive maintenance of hoisting equipment (102), particularly cranes. A maintenance centre (106) automatically collects diagnostic data relating to least one component of the remote hoisting equipment and optionally sensor data relating the operational environment of the remote hoisting equipment (102). The maintenance centre (106) has an access to configuration data of the remote hoisting equipment and the reliability data on the at least one component of the remote hoisting equipment (102). The maintenance centre (106) is then able to generate a maintenance plan optimizing the cost of maintenance and reliability of the hoisting equipment over a life cycle of the hoisting equipment.

The invention discloses a maintenance decision-making method for an aircraft bleed air pressure regulating valve. The method comprises: step 1, initializing parameters; step 2, counting the use history of each component, and analyzing a reliability sample; step 3, analyzing a function relationship among various maintenance costs of the aircraft bleed air pressure regulating valve; step 4, evaluating the reliability distribution of the aircraft bleed air pressure adjusting valve; step 5, calculating the maintenance cost rate and availability of the aircraft; step 6, establishing a multi-objective planning model; step 7, converting the multi-objective planning model into an unconstrained optimization problem; step 8, carrying out iterative solution on the unconstrained optimization problem;step 9, judging whether the iterative computation meets an end condition or not, if so, turning to step 12, and otherwise, turning to step 10; step 10, updating a Lagrangian multiplier penalty factor;step 11, updating the multiplier parameters, and turning to step 8; and step 12, analyzing the rationality of the maintenance decision of the aircraft bleed air pressure regulating valve.

The invention discloses a liquid chromatography mobile phase early warning device. The liquid chromatography mobile phase early warning device mainly comprises a liquid chromatograph and an intelligent control system, wherein the liquid chromatograph comprises a pump, and a sample injector, a chromatographic column, a detector and a waste liquid bottle which are sequentially connected with one another through pipelines; the input end of the pump is connected with a mobile phase containing bottle; the output end of the pump is connected with the input end of the chromatographic column through a pipeline by virtue of the sample injector; the intelligent control system comprises a temperature sensor, a pressure sensor, a PLC host, a PLC module and a touch display screen; the PLC module is in plug-in connection with the PLC host; the temperature sensor and the pressure sensor are respectively arranged in the mobile phase containing bottle; an analog signal acquired by the temperature sensor and the pressure sensor is received through the PLC module, converted into a digital signal and fed into the touch display screen through the PLC host. According to the device, the operating temperature and the operating pressure of the mobile phase are monitored in real time, so that a phenomenon that air bubbles in the mobile phase escape due to temperature rise or pressure drop is avoided.

The invention relates to a valve special for an offshore oil drilling platform, in particular to a perpendicular chromium alloy four-plate-flow-guiding one-way valve of an internal threaded connector. The one-way valve comprises a valve body of the internal threaded connector, an upper flow guiding body, a lower flow guiding body, an upper half valve element and a lower half valve element, the outer circle of a cylindrical valve rod is in sliding fit with the inner circle of a lower flow guiding unthreaded hole, an assembling gap is reserved between the bottom end of the lower flow guiding unthreaded hole and the lower end face of the cylindrical valve rod, the machining accuracy requirement is lowered, and the one-way valve is easy to assemble; external threads of a lower cylinder are matched with internal threads of an upper cylinder in a sealed mode, and the two end faces of a cavity cylinder are closely fixed between the upper sealing end face and the lower sealing end face so that a closed annular cavity can be formed. Due to the cavity structure, the overall specific gravity of the combined body of the upper half valve element, the lower half valve element and the cavity cylinder is between the seawater specific gravity and the petroleum specific gravity, the combined body can move along with the flowing direction of mediums, and the one-way valve without any extra energy consumption in the whole working process is provided; middle objects such as a spring which may generate large resistance loss does not exist in the valve body of the internal threaded connector.

The invention relates to a special valve for an offshore oil drilling platform, in particular to a hoop connector six-plate diversion vertical one-way valve made of titanium alloy. The diversion vertical one-way valve made of the titanium alloy comprises a hoop connector valve body, an upper diversion body, a lower diversion body, an upper half valve element and a lower half valve element. The outer edge of a lower conical cylinder is connected with a lower cylinder step inner circle matched with an upper cylinder step outer circle in a sealed mode. The inner edge of the lower conical cylinder is connected with a lower cylinder external thread matched with an upper cylinder internal thread in a sealed mode. A valve element middle inner circle on the inner side of the lower cylinder external thread and a valve element lower inner circle on the lower conical cylinder are the same in size and are in sliding fit with a cylindrical valve rod outer circle. An upper half valve element outer circle and a lower half valve element outer circle are the same in size and are in sliding fit with an inner circle through hole. The thickness of single blade of a positioning upper six plate and a positioning lower six plate ranges from 4 millimeters to 5 millimeters. The hoop connector valve body is not internally provided with a spring or other middle objects which probably produce large resistance losses, the accidental faults caused by bias pessure or failure due to the fact that the damping spring cannot bear torrent impact are avoided thoroughly, and the service life of the special valve is prolonged.

The invention relates to seawater desalting equipment and in particular relates to welding chromium alloy atoll seawater separating and desalting equipment without power consumption or oil consumption. A primary output shaft is welded and fixed with a coupler input welding groove of a chromium alloy welding head six-edge flexible coupler, a coupler output welding groove of the chromium alloy welding head six-edge flexible coupler is welded and fixed with a low pressure pump input shaft of a low pressure centrifugal pump, a lifting water inlet pipe of the low pressure centrifugal pump is connected with a seabed water filter; a lifting water outlet pipe of the low pressure centrifugal pump penetrates through a water pipe sealing hole of a separation wall from outside to inside to be connected with a spare pre-treatment tank; a high pressure pump water suction pipe of a high pressure centrifugal pump is connected with the spare pre-treatment tank, a high pressure pump water outlet pipe of a high pressure centrifugal pump is connected with an osmosis membrane front cavity of a reverse osmosis membrane assembly; an osmosis membrane rear cavity of the reverse osmosis membrane assembly is sequentially connected to an activated carbon adsorption tank and a fresh water storage tank, and the welding chromium alloy atoll seawater separating and desalting equipment is improved in the aspect that the high pressure pump water suction pipe and the high pressure pump water outlet pipe are respectively connected with a horizontal welding head non-return device in series.

The invention discloses an intelligent crane based on infrared measurement. The intelligent crane comprises two tracks and two mobile bases, wherein two columns are arranged on each track, pressure bearing blocks are arranged in a spaced manner on the side walls of the columns, a cross beam is arranged between the mobile bases, movable stands are arranged at two ends of the cross beam, two rotating arms are arranged in a spaced manner on the side edges, toward the columns, of the movable stands, rotating shafts are arranged at the centers of the rotating arms, are inserted into the movable stands and can support the movable stands, main motors are arranged in the movable stands, output shafts of the main motors are connected to the rotating shafts of the rotating arms to drive the rotatingarms to swing in a reciprocating manner, pressure bearing parts are arranged on two end parts of the rotating arms, and the pressure bearing parts press the pressure bearing blocks to move the movable stands up and down when the rotating arms swing in a reciprocating manner. The invention provides the intelligent crane capable of taking self-protecting measures to avoid accidental collapse accidents under a circumstance that an external air speed in severe weather is relatively high.

The invention discloses an electrical equipment voice warning device based on solar power supply. The electrical equipment voice warning device comprises a mobile phone terminal, a voice conversion device, a power amplifier, a loudspeaker, a solar controller, a solar cell panel, a storage battery and an inverter. The mobile phone terminal is connected with the voice conversion device through a wireless network GPRS. The voice conversion device is successively connected with the power amplifier and the loudspeaker. The solar controller is connected with the solar cell panel and the storage battery separately. The solar cell panel is successively connected with the storage battery, the inverter and the power amplifier. The storage battery is connected with the voice conversion device and the inverter separately. The electrical equipment voice warning device based on solar power supply of the invention is used in long-distance occasions in which power supply is lacked and workers are not easy to reach, and can be used to reduce the number of inspectors to go to the field, improve the working efficiency, remind constructors near lines of safety, and effectively avoid the occurrence of power system sudden failures.

The invention relates to seawater desalination equipment namely spline flange zinc alloy seawater desalination treatment equipment. An indoor hand-operated entertainment device drives a planetary speed-increasing gearbox to rotate at a high speed and penetrate through a transmission pipe isolation hole of a separation wall from inside to outside by virtue of a zinc alloy spline coupling to drive a centrifugal lift pump to obtain seawater from a submarine water filter by virtue of a lifting water inlet pipe; the obtained seawater penetrates through a water pipe isolation hole of the separation wall from outside to inside by virtue of a lifting water outlet pipe to sequentially flow into a micro electrolytic tank treatment device and a dust-slag precipitation and filtration device and then enter a clean seawater standby tank for later use; a micro plunger pump is built in each of pairwise-arranged pedal entertainment devices; a high-pressure pump water inlet pipe of each micro plunger pump is connected with the clean seawater standby tank; a high-pressure pump water outlet pipe of each micro plunger pump is connected with an osmotic membrane inlet of a reverse osmosis membrane component; fresh water permeating out of an osmotic membrane outlet flows through an activated carbon adsorption tank, and is subjected to treatment; then standard fresh water which meets the domestic drinking standard is finally supplied to a fresh water storage tank for domestic drinking of people on an isolated island.

The present invention relates to a grating scale reliability testing stand and a reliability test method based on a load spectrum, and belongs to a testing device applied to the machinery field. The grating scale reliability testing stand comprises a grating scale main scale installing plate, support blocks, reading head installing plates, towing chains, linear motors, a sliding plate, grating scale main scales, reading heads, base plates and three-directional acceleration sensors. The present invention provides a reliability test method based on a velocity spectrum and an acceleration spectrum. Regulation can be performed according to concrete requirements of a test, such as regulation of an instantaneous velocity, an instantaneous acceleration, an average velocity and an average acceleration of a linear motor and a motion rule curve thereof; the grating scale is tested through simulation of the velocity load and the acceleration load, the velocity spectrum and the acceleration spectrum are complied according to the velocity load and the acceleration load in actual operation of the grating scale, the reliability test based on the velocity spectrum and the acceleration spectrum canreally reflect the velocity load and the acceleration load of the grating scale in the actual operation, and various types of enclosed grating scale reliability tests can be satisfied.

The invention relates to a matching special valve in a pipeline special for conveying crude oil of an oil field, in particular to a welding head zinc alloy six-leaf connecting rib deformed flow way horizontal valve. The valve comprises a cylindrical shaft, a swing rotation valve element, a welding joint valve body, a fastening screw and an outer end cover. As the improvement, the outer end of an outlet bending pipe and the out end of an inlet bending pipe on the welding head valve body are both connected with valve external connection straight pipes, welding slope openings are formed in the valve connector end faces of the valve external connection straight pipes, a circular welding line is arranged between the welding slope openings and an outer pipeline connector, an annular flow way opening is formed in the plane side of a valve element inlet of a valve element sector cylinder, and a round flow way opening is formed in the plane side of a valve element outlet of the valve element sector cylinder. The annular flow way opening is communicated with the round flow way opening through a deformed flow way, a deformed flow way conical portion contained in the deformed flow way and the valve element sector cylinder are connected through six-leaf connecting ribs, the thickness of the valve inlet zinc alloy hard layer plane and the thickness of the valve outlet zinc alloy hard layer plane range from 0.5 mm to 0.7 mm, and the thickness of the single leaf of the six-leaf connecting ribs is 1/21 to 1/23 of the diameter of the round flow way opening.

The invention discloses a traceable upgrading method based on a single-chip microcomputer, which comprises the following steps of: electrifying the single-chip microcomputer, and running a BOOT code; detecting power-on reset by making CRC calculation of an application program area, and comparing with CRC in a data storage area; if comparison passes: executing the application program, if an upgrading instruction is received in the running process of the application program, erasing a backup area, conducting write-in operation on the backup area, if upgrading data is paused, stopping write-in to the flash, indicating the steps continue to be executed; if an upgrading ending instruction and the CRC value are received, writing the CRC value into the data storage area, executing the steps, and at the moment, detecting software reset; if comparison does not pass, reporting a flash damage error, indicating that the BMU can check the application program area every time the BMU is started to prevent accidental faults caused by accidental flash damage after operation; and after upgrading fails, automatically returning the application program and performing working. codes in Boot are extremely few, only flash codes are carried, maintenance is easy, and errors are not prone to occurring.

The invention relates to a device for extracting fresh water from sea water and in particular relates to a copper alloy external thread reef fresh water high pressure membrane permeation device. The copper alloy external thread reef fresh water high pressure membrane permeation device is characterized in that an indoor single-handed entertainment device drives a primary speed-increase gearbox to rotate at a high speed, a copper alloy external thread five star flexible coupler passes through a transmission pipe sealing hole of a separation wall from inside to outside to drive a single-stage centrifugal pump to acquire seawater from a seabed water filter by virtue of a lift water inlet pipe, the acquired seawater passes through a water pipe sealing hole of the separation wall from outside to inside via a lift water outlet pipe to be connected to a pre-treatment spare tank; a multi-stage pump suction pipe is connected with the pre-treatment spare tank, a multi-stage pump water outlet pipe is connected with a permeable membrane front cavity of a reverse osmosis membrane assembly; strong brine intercepted by the reverse osmosis membrane assembly is pressurized and discharged, the fresh water passing through the reverse osmosis membrane assembly flows out from a permeable membrane rear cavity and is treated by an activated carbon adsorption tank, and drinking water reaching the standard of drinking water is finally fed into a fresh water storage tank for drinking water supply of people living on reefs.