805 results about "Repair rate" patented technology

The invention belongs to the field of power system reliability estimation, and relates to a method for estimating the reliability of an electric distribution system containing distributive wind power, photovoltaic and energy storage devices. The method comprises the following steps of: (1) acquiring configuration parameters of the electric distribution system; (2) forming a fault result list; (3) generating an energy storage charging and discharging state periodic list; (4) obtaining a normal running time TTF according to the fault rate of elements; (5) finding out an element which has TTFmin; (6) obtaining a fault time TTR according to the repair rate of the element, and calculating an energy storage state at the TTFmin moment; (7) searching the fault result list to determine a power failure situation of a load point in a non island area; (8) for an island area, calculating a draught fan real-time value, a photovoltaic real-time value and a load real-time value; (9) performing load attenuation on each island and recording the power failure situation of the load point in the island; (10) calculating the state variation of the energy storage of the island; (11) generating novel running time for the element and boosting a simulation clock to TTFmin+TTR; (12) searching for an element which is faulted at first again, and repeating the step (12) if the fault moment is less than the simulation clock, and if the fault moment is not less than the simulation clock, executing the step (13); and (13) judging whether the simulation clock is equal to a scheduled time length, and returning to the step (6) if the simulation clock is not equal to a scheduled time length; and if the simulation clock is equal to a scheduled time length, calculating a reliability index. By the method, the reliability level of the distribution system containing the distributive wind power, photovoltaic and energy storage devices can be estimated quantitatively.

The present invention provides a method and apparatus for a memory build-in self-diagnosis and repair with syndrome identification. It uses a fail-pattern identification and a syndrome-format structure to identify faulty rows, faulty columns and single faulty word in the memory during the testing process, then exports the syndrome information. Based on the syndrome information, a redundancy analysis algorithm is applied to allocate the spare memory elements repairing the faulty memory cells. It has a sequencer with enhanced fault syndrome identification, a build-in redundancy-analysis circuit with improved redundancy utilization, and an address reconfigurable circuit with reduced timing penalty during normal access. The invention reduces the occupation time and the required capture memory space in the automatic test equipment. It also increases the repair rate and reduces the required area overhead.

The present invention describes a method and system for creating a cluster availability model that takes into account availabilities of software components in the cluster. Aspects of the disclosure include defining a repair model and failure parameters for a repair mode in the repair model, and modeling availabilities of software components based on the repair mode and failure parameters. Additional aspects include combining availability models of software components in a computationally feasible manner and determining repair rates of node and cluster reboots. A cluster availability model is determined using the combined availability models of software components and the repair rates of node and cluster reboots.

The invention discloses a method for actively supporting a lane side filling gob-side entry retraining. Firstly, a lane interior support and an enforcing support are built on a reserved lane according to a sounding rock condition and a working face. On the back of the working face, nogs, gangues or blockworks and the like are adopted to build a lane side filling wall along the edge of a gob. High-strength and sealed filling bags are paved on the filling wall, and high-expanding materials or cement coagulation serous fluid added with a rapid hardening early strength agent is filled into the filling bags through a grouting pump. The enforcing support is dismounted after a top plate behind the working face is movably stabilized, the high-strength and sealed filling bags are enabled to be contacted tightly with the top plate, and active support force is formed to be exerted on the top plate. By means of the active support force provided for the lane side filing wall, the top cutting capacity of a lane side filling body is enhanced, initial deflection of the entry retaining top plate is reduced, the stability of the top plate is improved, the quality of the gob-side entry retaining is improved, and repair rate of the gob-side entry retaining is reduced. The method is simple, convenient to operate and good in effect.

The invention discloses a method of roof cutting pressure relief of the narrow coal pillar gob side through static bursting for gob-side entry driving. According to the method, firstly, the drilling position and drilling relevant parameters of the separation distance, the diameter, the angle and the depth are determined; secondly, drilling construction and hole sealing operation are conducted; thirdly, slurry grouting of a static bursting agent is conducted, and roof cutting pressure relief is conducted through static bursting; and fourthly, gob-side entry driving is conducted. According to the method, recovery of an upper section working face and forward groove driving of a lower section working face are conducted simultaneously, and the problem of intense linkage of mine excavation is effectively relieved; and after entry-side roof cutting pressure relief, the stress environment of gob-side entry driving surrounding rock is greatly improved, surrounding rock deformation is greatly reduced in the entry driving process and after entry forming, the engineering quantity of entry supporting is small, and the repair rate is low.

The invention discloses a novel corrosion inhibition scale inhibitor, which comprises the following constitutions by weight: 1 to 16 polyepoxy sodium succinate, 1 to 18 polyaspartic sodium, 1 to 13 hydrolytic maleic anhydride, 1 to 25 gluconic acid sodium salt, 1 to 18 acrylic acid - acrylate - sulfonate copolymer, 1 to 8 zinc sulfate, 1 to 12 benzotriazol, and 0.5 to 2 NaOH. The novel corrosion inhibition scale inhibitor has the advantages that: the technology for removing SO2 by Ca(OH)2 can be normally run in a middle-sized and small-sized boiler houses, the repairing rate of the equipment is low, and the desulphurization cost can be reduced by 50 percent; the equipment of the copper or the cooper alloy structure can be protected; and a good corrosion inhibition scale inhibition effect can be realized in the environment that the temperature is less than 150 DEG C, and the PH is less than 12.

The invention provides a cast-welding production device of an accumulator and a production process thereof, belonging to accumulator industry. The technical scheme is characterized in that the production device comprises a brushing device, a steeping device and a cast-welding mainframe; the brushing device and the steeping device are connected with each other sequentially by a battery conveying line; and the brushing device comprises a brushing mainboard with an ejector cylinder and a steel wire brush with a brushing cylinder. The cast-welding production device and the production process have the following advantages that the cast-welding machine adopts a mode of closed production, has special smoke gas exhausting system and higher automation degree, only needs a worker to carry out simple transporting operation, greatly reduces the environmental pollution and the harm to human body, has regular and attractive cast-welding appearance and extremely low reject rate and welding repair rate, and leads the worker to not need technical requirements, thus greatly saving cost for manufacturers, improving output and increasing production value.

The invention discloses a strong resistance and strong evasion floor heave governing construction method of a high-stress large-deformation soft rock drift, belonging to the technical field of coal mine drift support. The strong resistance and strong evasion floor heave governing construction method is designed for solving the problems of large deformation and difficult support of the floor heaves of coal mine soft rock drifts. Certain depth is firstly dug downwards on a drift soleplate from a designed elevation, and then, a high strength deformed steel bar anchor rod, a grouting anchor rod, a steel beam and a concrete layer are used for supporting the drift soleplate to form a strong resistance supporting structure, a layer of aerated rubber air bags containing rubber granules is paved on the strong-resistance supporting structure, the air bags are used as strong evasion devices to release the pressure of the soleplate and buffer the deformation of the floor heave, and finally, a layer of reinforced concrete is poured on the rubber air bags to control the floor heave of the high-stress large-deformation soft rock drift. According to the invention, resistance is combined with evasion, the construction technique is simple, the construction speed is high, the repair rate low, the method is generally suitable for governing the floor heaves of various kinds of coal mine drifts and chambers, and the engineering practicability is strong.

The invention provides an output shaft chrome plating method and an output shaft chrome plating fixture. An output shaft comprises a cylindrical main body, and an outer circle area for chrome plating and an inner circle area for chrome plating are arranged at the first end of the main body. The fixture comprises a fluororubber sleeve, a lower cover plate, an upper cover plate and an anode center pole, the fluororubber sleeve shields an inner circle surface of a non-chrome-plating window area, and the anode center pole is connected with the upper cover plate and the lower cover plate. An insulating sleeve is arranged at the joint between the anode center pole and the upper cover plate. According to the chrome plating method, the special chrome plating fixture is provided, integral assembly and suspension are adopted, component matching tightness is achieved, anode positions for inner circle plating are fixed, the plating thickness of an inner circle is uniform, and the phenomenon that part of a chromium layer of an inner hole is too thin to grind is prevented; the method is simple and rapid to operate, the inner circle and an outer circle can be plated with chrome by the same fixture at a time, processing cycle of components is shortened greatly, repair rate of the components is reduced and production efficiency is improved.

The invention provides a copper target material surface processing method. The method includes the steps that a copper target material is provided and comprises a copper target material mirror surface; the copper target material mirror surface is machined; polishing processing is carried out on the machined copper target material mirror surface and includes two times of polishing processes. At least two times of polishing processes are adopted after machining, surface processing is carried out on the copper target material mirror surface, and scratches formed on the surface of the copper target material mirror surface by machining and an oxidation layer formed on the copper target material mirror surface by machining remaining liquid are removed by the polishing processes, so that surface glossiness and roughness of the copper target material mirror surface are higher, and the repair rate and rejection rate of the copper target material are reduced.

The invention discloses a fault diagnosing and repairing method for a washing machine. The fault diagnosing and repairing method includes the steps of monitoring a washing progress, a loading state and a motor operation state of the washing machine in real time; if fault information is detected, judging a fault type according to the motor operation state; repairing the washing machine according to the fault type and the washing progress and the loading state of the washing machine when the washing machine breaks down; judging whether the fault is a hardware fault according to a repair result; if yes, performing fault alarming; if not, continuously operating the washing progress when the washing machine breaks down after repairing. The fault diagnosing and repairing method for the washing machine has the advantages that judgment fault probability can be lowered, and a repair rate of the washing machine can be lowered.

The invention discloses a scissor-fork type lifting transfer machine. The scissor-fork type lifting transfer machine comprises a scissor-fork type lifting frame, a transfer platform and a pushing mechanism, wherein the transfer platform is arranged on the scissor-fork type lifting frame; the pushing mechanism comprises a push plate and a push cylinder body; the push plate is movably arranged on the transfer platform; and the push cylinder body and the push plate are connected to drive the push plate to push articles on the transfer platform. The scissor-fork type lifting transfer machine disclosed by the invention has the advantages of great bearing weight, relatively-low cost, high lifting speed and high lifting efficiency. According to the scissor-fork type lifting transfer machine, the lifting of the transfer platform can be realized, the transfer platform can be directly supported, and no excessive mounting racks are needed; the scissor-fork type lifting transfer machine is compact in structure and is small in occupied space; the pushing mechanism is driven by air pressure or hydraulic pressure; and the variable load bearing capacity of the pushing mechanism can be greatly improved, the maintenance rate of faults is reduced, and the service life of the pushing mechanism is prolonged. In addition, the pushing mechanism can linearly push the articles; and the scissor-fork type lifting transfer machine is simple in structure, flexible in mounting and lower in cost.

The invention discloses a method for evaluating self-repairing performance of a well cementation cement sheath. The method sequentially comprises the following steps: (1) preparing self-repairing cement paste for well cementation, pouring the self-repairing cement paste into a bending-resistant and splitting tensile mold, and maintaining for a certain time in a high-temperature high-pressure maintenance kettle, so that the cement paste is solidified into set cement; (2) testing the bending strength and tensile splitting strength of the set cement which is completely broken; (3) maintaining the tested broken set cement in a maintenance device for 24 hours, and measuring the bending strength and tensile splitting strength of the set cement again; (4) calculating a bending strength repair rate and a tensile splitting strength repair rate of the set cement; and (5) repeating the steps (2) to (4), and solving an average value of the repair rates, wherein the set cement is considered to have the self-repairing performance when the average bending strength repair rate is more than or equal to 50 percent and the average tensile splitting strength repair rate is more than or equal to 30 percent. The method has the advantages that the principle is reliable, a calculation method is simple, the repair rates of the set cement can be accurately tested, and the method is suitable for evaluating the self-repairing performance of various types of well cementation set cement.

The invention discloses a pressure-relief support coordination control method for a deep high-stress tunnel based on borehole pressure relief. The method comprises three steps according to a time sequence, and the three steps are respectively a primary pressure relief support step, a borehole pressure relief step and a secondary high-strength anchor grouting support step. According to the pressure-relief support coordination control method for the deep high-stress tunnel based on borehole pressure relief, surrounding rock deformation in each stage is controlled by adopting different support and reinforcement methods according to difference of surrounding rock deformation ways in different stages after the tunnel is excavated, the support performances of surrounding rocks and supporting structures are fully played, and large deformation of the surrounding rocks of a deep high-stress tunnel is reduced, so the stability of the tunnel can be maintained for a long time. Meanwhile, the method disclosed by the invention is capable of effectively reducing the repair rate of the tunnel, alleviating the labor intensity of workers and lowering the comprehensive support cost of a mine.

The invention discloses a cosmetic capable of eliminating striae gravidarum and scars, which is prepared by the following components: 1.8-2.3 parts of 1,3-butanediol, 1.6-2.4 parts of nicotinamide, 0.08-0.13 part of allantoin, 0.05-0.6 part of preservative, 0.8-1.3 parts of cell growth factor, 0.6-1.5 parts of VB2, 0.85-1.35 parts of asiaticoside, 2.0-3.0 parts of cocoa oil, 2.5-3.5 parts of collagen, etc. The cosmetic can ensure skin to be moist and soft, promote cell growth, quicken wound healing, promote wound surfaces of skin and mucosa to heal, shrink scar, quicken the repair of injured epidermic cells, and strengthen regeneration ability of epidermic cells, thus enabling skin to be full, keeping skin elasticity and strengthening skin physiological function. The cosmetic is safe and reliable without any toxic or side effect, can narrow, shallow, lighten and fade away striae gravidarum and scars with effective repair rate of 100%, harmlessly repair scar cells, prevent pigmentation, promote normal growth of skin cells, update scar tissue, recovery original memory of skin and restore beautiful skin.

Systems and methods utilizing available storage space within a storage system (e.g., as “supplemental” storage) and/or implement less physical storage space in the storage system (e.g., reduced storage overhead) through operation of fragment pre-storage techniques are disclosed. Such fragment pre-storage utilization of the aforementioned available storage space may provide operation emulating larger storage overhead than is actually provided in the storage system, facilitate improved repair rates, and/or facilitate reduced repair bandwidth in the storage system according to embodiments. A fragment pre-storage repair policy may implement source object repair whereby additional fragments for the source object are pre-generated and pre-stored in the storage system as transient fragments, whereby the transient fragments are moved to corresponding storage nodes when those storage nodes become physically present in the storage system.

The invention discloses a mild corn thresher, which comprises a motor, a roller body, a baffle plate, a hopper, a stock bin, a frame and the like. Rubber belts A and a rubber belt B are sleeved on the roller body, the upper surface of each of the rubber belts A and the rubber belt B is provided with a plurality of wedged grooves, sifters matched with the roller body in size are arranged outside the roller body, each sifter is in a fence structure formed by welded steel bars, the front of each sifter is wide and the rear thereof is narrow, flat steel bars are welded outside the sifters, the middle of each flat steel bar is provided with a through hole, a pressure plate is further disposed between the roller body and the sifters, the front of the pressure plate is wide and the rear thereof is narrow, the pressure plate is matched with the sifters in size, bolts are fastened on the pressure plate, and a spring is sleeved on each bolt. Threshing noise of the mild core thresher is lowered, corn kernels and corn cobs are scarcely hurt, and the mild corn thresher is safe in operation and low in repair rate. With the wear-resistant rubber, the service life of a new wild corn thresher is more than three years, and the mild corn thresher is simple in maintenance and low in cost.

The invention discloses a four-way valve anomaly detection method and device and an air conditioning unit. The method comprises the following steps that whether the reversing of a four-way valve is abnormal or not is judged according to a preset judgment condition after the reversing of the four-way valve is monitored; when the reversing of the four-way valve is abnormal, the fault frequency of the four-way valve is accumulated, and the fault treatment of the four-way valve is carried out; and the reversing frequency of the four-way valve is accumulated, and the preset judgment condition is adjusted according to the fault frequency and the reversing frequency. According to the method and device and the air conditioning unit, the problem that in the prior art, the four-way valve cannot be detected and treated in time when reversing of the four-way valve is abnormal is solved, the operation reliability of a heat pump unit is improved, and meanwhile the fault rate and the maintenance rateof the unit are reduced.

The invention discloses a shield structure formed by a shallow tunneling method in an air-pressure mode. The soil tunneling performed by a tunneling machine in the existing cutter disk cutting mode is changed to be in a mining arm tunneling mode. The supporting mode performed by existing cutter disks is changed to be performed by slotting tools and supporting baffle plates. The number of the slotting tools and the supporting baffle plates is determined according to the diameter of a tunnel and the stratum. According to the stability of the stratum, two excavation modes including an open tunneling mode and an air pressure balance tunneling mode can be realized, so that the failure rate of equipment in the area rich in large floating rocks is lowered. Therefore, the repair rate of the equipment is lowered, and the work time and the work efficiency of the tunneling machine are improved.

A restoring device for treating fluorine pollution of groundwater mainly comprises a water pumping well and at least one water injection well, wherein a water suction pump is installed in a well pipe of the water pumping well, and a booster pump is installed in a well pipe of the water injection well. The part of the well pipe of the water pumping well and the part of the well pipe of the water injection well, which are located below the water level, are provided with well sieves. A water conveying pipe is connected between the water suction pump and the booster pump, the well pipe of the water pumping well and the well pipe of the water injection well are respectively arranged on respective protecting walls with holes, a fluorine-removed restoring material is filled in the well sieves of the well pipes and the protecting walls to form a permeable reactive barrier, and materials having supporting effects are filled in parts above the well sieves of the well pipes and the protecting walls. The invention further provides a restoring method for treating fluorine pollution of the groundwater. Compared with traditional in-situ ex-situ restoring technologies, the restoring device and the restoring method have high applicability and repair rate for the polluted groundwater.

The invention belongs to the technical field of welding materials and particularly relates to a high-temperature high-strength nuclear power nickel-based welding wire free of crack defects and preparation and application thereof. The high-temperature high-strength nuclear power nickel-based welding wire is composed of, by weight, 28.0-31.0% of Cr, 7.0-11.0% of Fe, 0-0.04% of C, 0-1.0% of Mn, 0-0.15% of Si, 0-0.5% of Ti, 0-0.4% of Al, 2.0-4.0% of Mo, 1.5-2.5% of Nb, 0-0.005% of S, 0-0.005% of P, 0-0.005% of O, 0-2ppm of H, 0-0.02% of N, 0-0.005% of Ca, 0-0.005% of Mg, 0-0.02% of Ta, 0-0.02% of Cu, 0-0.02% of Co and the balance Ni, specifically, Al+Ti<=0.8%. The high-temperature high-strength nuclear power nickel-based welding wire can meet development requirements of a nuclear power station and improve material performance of primary equipment of a nuclear island, the ductility dip cracking resistance of the welding wire is better than that of an ERNiCrFe-7A welding material adopted in the existing nuclear island primary equipment manufacturing process, the product repair rate is decreased, and the manufacturing cost is reduced.

The invention discloses a method and reagent for cleaning and repairing a discarded reverse osmosis film in an offline mode, which are used for washing and repairing reverse osmosis film fouling of different types, solve the problem of non-thorough cleaning caused by the original crude cleaning mode, initiatively develop a repairing reagent and method of a damage film and fill domestic gaps in the aspect. Various parameters of the film obtained by cleaning and repairing with the method and the reagent approach those of a new film more closely, the film repair rate is greatly strengthened, the pertinence is higher, and the defect of chemically damaging a perfect film in the traditional cleaning method is avoided at the same time. The method and the reagent for cleaning and repairing the discarded reverse osmosis film in the offline mode can ensure that the performance of the washed film reaches or approaches that of the new film more closely, greatly reduce the film consumption cost of an enterprise, ensure non-interference of production and film cleaning and avoid the damage to a normal film during online chemical cleaning.