59results about How to "Reduce maintenance costs" patented technology

The invention is applicable to the technical field of finance, and provides a method and a device for service development. The method and the device aim to solve the problem that financial service development and maintenance are high in cost, low in efficiency and low in reliability in the prior art. The method comprises the following steps: obtaining service components that a user chooses and set parameter information, and establishing service component living examples; associating with the service component living examples according to associated information of the service components that the user inputs, and forming a visual service flow chart; compiling the visual service flow chart, generating and issuing a corresponding service flow chart file. Through the technical scheme, financial service development can be simple like block stacking by using the service components, and complicated service becomes easily understood through a visual service flow chart customizing manner, so that the development difficulty can be reduced, the development efficiency is effectively improved, the software development and maintenance cost is greatly reduced, and the quality of software product is improved.

The invention relates to a Fe3O4 / CuO / pSiO2 (porous silica) catalyst, a preparation method thereof and application thereof in olefin epoxidation reaction. The preparation method comprises the following processes of: obtaining Fe3O4 microspheres serving as magnetic cores by adopting a co-precipitation method, and modifying the surfaces of the Fe3O4 microspheres by using polyvinyl pyrrolidone (PVP) in order to improve the adsorption effect of the surfaces of the Fe3O4 microspheres on metal cations; coating a CuO nano shell layer on the surfaces of the Fe3O4 microspheres by using copper acetate as a copper source through hydrothermal synthesis; and finally, coating the porous silicon dioxide shell layer by using cetyl trimethyl ammonium bromide (CTAB) as a surfactant and using ethyl orthosilicate as a silicon source, and thus obtaining a composite catalytic material with a magnetic Fe3O4 / CuO / pSiO2 core-shell structure. The catalytic performance of the composite material is researched by respectively using epoxidation reaction of styrene and cyclooctene as probe reaction, and the results prove that the catalytic material has high reaction activity and selectivity, and the catalytic material is easy to separate and recover by introducing the magnetic ores; and the catalytic material has a good circulating effect, still can keep excellent catalytic performance by dozens of times of circulation, and has a great application prospect.

The invention discloses a lubricating oil special for a motorcycle engine, and belongs to the technical field of lubricating oil. The lubricating oil is obtained through a reaction carried out on 80 parts to 90 parts of base oil, 2 parts to 5 parts of abrasion resistance agents, 5 parts to 10 parts of corrosion resistance agents, 2 parts to 5 parts of cleaning factors, 5 parts to 15 parts of antioxidant, 1 part to 3 parts of metal deactivator and 8 parts to 12 parts of viscosity modifier. The base oil is composed of 30 parts to 40 parts of PAO and 40 parts to 50 parts of naphthenic base oil. The cleaning factors are any one of metal-based sodium or metal-based calcium or metal-based magnesium. The invention further discloses a preparing method of the lubricating oil. According to the lubricating oil special for the motorcycle engine, the cost of the base oil is controlled, and the better viscosity index and the high abrasion resistance performance can be ensured at the same time; viscous black carbon mud particles wrapped on engine parts can be effectively removed through matched addition of auxiliaries, the service life of the engine is prolonged, the equipment maintenance cost is reduced, and the clean abrasion protection mode is provided for the motorcycle engine. The preparing method of the lubricating oil is simple in steps, environmentally friendly, and easy to implement.

The invention discloses a visual network operation and maintenance method which comprises the following steps: receiving a request for visual network operation and maintenance; according to the request for the visual network operation and maintenance, generating a workflow of the visual network operation and maintenance, and establishing a network modeling input; and carrying out analog simulation on a network determined by the network modeling input according to the workflow of the visual network operation and maintenance, the network modeling input and original information of network modeling. According to the visual network operation and maintenance method and device, visual network operation and maintenance not relying on probes can be realized.

The invention relates to a starting method of satellite borne software. The method comprises the following steps: ground compression software stores an object code of the satellite borne software in a programmable read only memory (PROM) after multiple lossless compression; and after a satellite computer is electrified or reset, a starting program decompresses and reduces compression data of the satellite borne software stored in the PROM to a static random access memory (SRAM) and operates. The memory efficiency of the PROm is effectively improved, the flight program and the starting program which are normally cured in the PROM are realized, so that the space cost and the maintenance cost brought by redundant backup are lowered, the safety of the satellite is extremely improved, the PROM is not overturned by single particles, EEPROM is not dependent, on-orbit maintenance times in the later stage can be greatly reduced, and the fault-tolerant ability of operation of the satellite borne computer is enhanced.

The invention discloses a method for concentrating titanium white waste acid by utilizing sulfuric-acid production tail gas. The method comprises the following steps: (1) supplying sulfuric-acid production tail gas to titanium white waste acid sprayed to be in a mist state, concentrating the titanium white waste acid and turning the sulfuric-acid production tail gas from dry gas into wet gas containing steam and titanium white waste acid foam; (2) performing gas-liquid separation on the wet gas, treating and then emptying separated gas, mixing separated liquid with the titanium white waste acid concentrated in a step (1) and then repeatedly concentrating the mixture; and (3) performing sampling test on the titanium white waste acid repeatedly concentrated and recovering the titanium white waste acid when the sulfuric acid content of the titanium white waste acid in percentage by mass is detected to reach over 55 percent. The method has the advantages of simple equipment, convenient operation, low investment, low energy consumption, low operation-maintenance cost, capability of avoiding pipeline blockage because of high-temperature scaling and capability of reducing the pressure to treat sulfuric-acid production tail gas.

The invention discloses a fault diagnosis and online monitoring method for a draught fan master control system based on data driving, and belongs to the technical filed of fault diagnosis. The method comprises the steps of calculating control limits of normal data of the draught fan master control system; calculating statistical magnitude of fault data of the draught fan master control system; determining fault occurrence time T according to the relation between the statistical magnitude and the control limits and determining the variety contribution rate and the fault variety of each master control system in the collected fault data when determining the time T; calculating the signal to noise ratio, the number of principal elements and the statistical magnitude which correspond to the fault variety in real-time data of the draught fan master control system sequentially, wherein if the statistic magnitude is within the control limits, the draught fan master control system is normal in operating process, otherwise, a sensor which corresponds to the fault variety is adopted in a fault sensor. According to the fault diagnosis and online monitoring method for the draught fan master control system based on the data driving, the use of complicated modeling by mechanism and signal analysis of the draught fan is avoided; multiple faults in the same time frame can be monitored, and the fault capable of being found is multidimensional; the biggest signal to noise ratio is adopted to determine the number of the principal elements, and thus the monitoring sensitivity of the faults is improved.

The invention belongs to the field of pumps and particularly relates to a water jet propulsion pump which comprises a pump body and a pump shaft assembly arranged at a pump cavity of the pump body. The pump shaft assembly at least comprises a pump shaft and an impeller wheel arranged on the pump shaft; the pump shaft is of a simply supported beam structure with bearings at the two ends of the pump shaft fixedly connected, the tail end of the pump shaft and a power source of the water jet propulsion pump are in normal-running fit, and the head end of the pump shaft extends in the axial direction and is in bearing fit with a bearing assembly arranged on the pump body; bounded by an impeller wheel body, the water jet propulsion pump is divided into a water inlet area and a water outlet area, wherein the water inlet area is communicated with a liquid inlet of the pump body, and the water outlet area is used for discharging water; a reflux passageway used for reducing the hydraulic thrust at the bearing assembly is arranged between the water inlet area and the water outlet area, and the water inlet area of the pump body, the water outlet area of the pump body, gaps to be lubricated of the bearing assembly and the reflux passageway are sequentially communicated and form a circular flow channel. The water jet propulsion pump is reasonable and practical in structure, wide in working usage range and long in service life, and high-efficiency work of components within the whole water outlet area of the pump body can be effectively guaranteed.

The invention relates to an improved aeration well for in-situ remediation of polluted underground water and a remediation method. In the improved aeration well, an inner well tube is sleeved in an outer well tube; the inner well tube is fixed in the outer well tube by using an upper fixed bracket and a lower fixed bracket; an aeration head is arranged at the lower part of the inner well tube and is connected with an aeration pump through an aeration pipe; an exhaust hole is arranged at the upper part of the outer well tube and is connected with a contaminated gas monitor; an upper shock tube is arranged at the lower part of the exhaust hole at the upper part of the outer well tube; a top hole of the upper shock tube is lower than the inner well tube; a lower shock tube is arranged on the lower section of the outer well tube; a top hole of the lower shock tube is higher than the bottom end face of the inner well tube; and the bottom end face of the outer well tube is in contact with a base plate of an underground water layer. The invention has the advantage that the transverse diffusion of the pollutants is reduced by increasing the vertical flow of underwater. Compared with the traditional underground water aeration technology and extraction treatment technology, the remediation method has a simpler process, the improved aeration well can continuously operate by conventional maintenance, the remediation efficiency is improved and the remediation cost and the maintenance cost are reduced.

The invention belongs to the technical field of cables and relates to a lightning protected cable for a communication base station. The lightning protected cable for the communication base station comprises a cable core, an inner protecting sleeve, an armor layer, an outer protecting sleeve and a ground layer. The lightning protected cable for the communication base station is characterized in that a first protecting layer is arranged outside the cable core, the inner protecting sleeve is arranged outside the first protecting layer, a second protecting layer is arranged outside the inner protecting sleeve, the ground layer is arranged outside the second protecting layer, the armor layer is arranged outside the ground layer, and the armor layer is coated with the outer protecting sleeve; the armor layer is a single-face film covering steel belt and the face, in contact with the ground layer, of the armor layer is a non-film-covering face; the first protecting layer and the second protecting layer are both mica tapes; the outer protecting sleeve comprises, by weight, the following raw materials of 71 parts of polyethylene, one part of anti-oxygen 1010, 12 parts of aluminum hydroxides, 0.5 part of HK-type antistatic agent, 3 parts of ethyl acetate, 1 part of carbon black, 10 parts of zirconium oxide and 1.5 parts of polyethylene wax. The lightning protected cable for the communication base station has the advantages of being simple in manufacturing, high in production speed, capable of enabling the electrical resisting rate of the ground layer to be low, low in maintaining cost, small in dust adsorption, pressure resistant, and good in flame resistance.

Frog farming method and frog cage are provided. The method comprises: I, putting young frogs in the frog cage in spring; II, putting lure attracting mosquitoes into the frog cage into the frog cage in summer and autumn, thereafter the frogs feed on the mosquitoes; III, avoiding snakes entering the frog cage in the place where the snakes inhabit; IV, covering the frog cage with plastic film in winter, mounting an electric lamp in the frog cage, increasing the temperature of air in the frog cage to keep the frogs not hibernating and promote the frogs to grow; V, adding artificial lure if necessary. The frog cage includes a fixed frog cage and a vehicle-mounted frog cage, both including inner tiers, wherein a water basin, a terrace and a stairway communicating the upper and lower tiers are arranged on each tier, and the frog cage is covered with a mesh enclosure. The frog framing method and frog cage have the advantages that the frogs are farmed in multi-tier cages, lures are used outdoors to attract insects, pests are eliminated for crops, natural ecology is balanced, and food sources are also provided for human; cage framing of frogs is very low in cost; frogs farmed have high reproductive rate, high disease resistance and high feed conversion capacity.

The invention belongs to the technical field of metallurgy, and particularly relates to high-performance bridge steel with the yield strength not smaller than 500 MPa and a preparation method and application of the high-performance bridge steel. The bridge steel is prepared from the following components: 0.03% to 0.06% of C, 0.10% to 0.25% of Si, 1.30% to 1.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.010% to 0.040% of Als, 0.25% to 0.45% of Cr, 0.05% to 0.20% of Mo, 0.20% to 0.30% of Cu, 0.25% to 0.40% of Ni, 0.030% to 0.040% of Nb, 0.010% to 0.040% of Ti and the balance Fe and impurities. According to the high-performance bridge steel with the yield strength not smaller than 500 MPa and the preparation method and application of the high-performance bridge steel, microalloying design is adopted, a TMCP technology is matched, precious elements are reduced, the structure is fine and uniform, and a prepared steel plate has high toughness, a low yield ratio, weather resistance, weldability and the anti-fatigue performance.

The invention discloses a tire pressure gauge and air faucet connecting structure which comprises a universal head, a conductive coating film, a first mating piece and an insulating fixing piece; the universal head is arranged on the tail end of the axial direction of the air faucet, and is provided with a second mating piece; the conductive coating film is fixed on an outer shell, and comprises a film body, a tongue piece which extends into the outer shell form the film body and is electrically connected with a transmission circuit in a circuit board, and a guide groove penetrated to the film body; the film body is provided with an inner concave spherical surface and an outer convex spherical surface; the universal head is universally connected with the inner concave spherical surface, and is concentric with the outer convex spherical surface; the first mating piece comprises a limiting piece; the insulating fixing piece is sleeved on the periphery of the air faucet so that the air faucet is fixed with a hub in an insulating way; the two mating pieces are mutually fixed in a matched way through the guide groove; and the signals of the transmission circuit of the tire pressure gauge are transmitted to the space sequentially through the conductive coating film, the first mating piece, the second mating piece, the universal head and the air faucet. The tire pressure gauge and air faucet connecting structure can ensure the high-efficiency and reliable transmission of the signals while ensuring the tire pressure gauge and the air faucet are stably connected and rotate flexibly, and can minimize the economic losses caused by the hitting to the tire pressure gauge.

The invention relates to a session keeping method, a session keeping device, a readable storage medium and electronic equipment. The method is applied to a gateway, and comprises the following steps:when a first HTTP message carrying first Cookie information sent by a client is received, obtaining a gateway session ID and server session identification information from the first Cookie information; if determining that the first HTTP message is sent to the server according to the gateway session ID, determining a first target service node used for receiving the first HTTP message from a plurality of service nodes of the server; and if the identification information of the first target service node is matched with the identification information of the service node in the server session identification information, sending a first HTTP message carrying second Cookie information to the first target service node. Thus, a third-party middleware does not need to be additionally deployed to store the gateway session and the server session, and the gateway session and the server session do not need to be stored in the Cookie information, so that the problems in related technologies can be avoided, and the communication efficiency is ensured.

The invention discloses a multilayer backwashing filter, and a method. The multilayer backwashing filter comprises a tank body; an upper water chamber, a middle water chamber and a lower water chamberare arranged in the tank body from top to bottom; filter material layers are respectively arranged between the upper water chamber and the middle water chamber, and between the middle water chamber and the lower water chamber; the lower water chamber is communicated with a bottom cavity; the bottom cavity is communicated with a water inlet pipe; the upper water chamber is communicated with a filtered water outlet pipe, the filtered water outlet pipe is communicated with a drainage pipe below, and the bottom end of the drainage pipe is communicated with a backwash water outlet pipe which is communicated with the bottom cavity; a rotating motor is arranged at the top of the tank body and is fixedly connected with a hollow rotating shaft, and the hollow rotating shaft is communicated with awater sprayer; the bottom end of the hollow rotating shaft is located in a positioning sleeve which is fixedly connected with an elbow, and the elbow is communicated with a backwash water inlet pipe.The method comprises a sewage filtering method, a method for backwashing using clear water, and a backwashing method using sewage. According to the multilayer backwashing filter, layered and spaced arrangement of filter materials is adopted, so that the filtering effect is good, and at the same time, backwashing function is achieved, and the cleaning effect is better.

The invention discloses a financial IC card fabrication data generation method which includes a Velocity template engine basic data preparation step; a Velocity template engine original fabrication data preparation step; a fabrication task execution step, and the like. The method overcomes the defects caused during the fabrication data generation of a financial IC card data preparation system, realizes quick generation of fabrication data through the method of simple configuration of the Velocity template and a user-defined engine, can be used for efficiently and flexibly generating fabrication data of different algorithms, improves the generation efficiency of fabrication data of the financial IC card data preparation system, and improves the system operability and maintainability; the Velocity has a perfect log record method, and can be combined with the user-define engine to shield difference of different algorithms and different data types and simplify configuration of the financial IC card data preparation system, thereby improving the running efficiency and reducing the maintenance cost.

The invention relates to a double-opening automatic door system for a rail vehicle. The double-opening automatic door system comprises a first door, a second door and a bearing driving mechanism, the first door and the second door are opened oppositely, the bearing driving mechanism is arranged above the first door and the second door and connected with a vehicle body to drive the same to move relatively, each of the first body and the second body is formed by assembling multiple sections, a pull rod mechanism is arranged inside each of part of the sections in the first door and the second door, two ends of each pull rod mechanism are connected with different sections respectively, and each two adjacent sections are enabled to be in relatively-fixed detachable connection. A door structure is formed by assembling multiple detachable sections, and the pull rod mechanisms are adopted for connection, so that the double-opening automatic door system has the advantage of convenience in demounting; part of structure of the doors can be replaced alone when being damaged, so that manufacturing cost and maintenance cost of the doors are lowered.

The invention discloses a lifter device with high safety and relates to the field of lifter equipment. The lifter device comprises a lifter bottom supporting table. A lifting frame is arranged in themiddle of the top of the lifter bottom supporting table. A lifting device is arranged in the middle of the side, close to the lifter bottom supporting table, of a cross supporting beam. A plurality ofbayonet ball devices are arranged on the side, away from the lifting frame, of a lifter top supporting table. The position, located above a straight toothed plate, of an operating plate base is rotationally connected with a rotating gear through a rotary shaft. A folding ladder is arranged on the left side of the operating plate base. By means of the lifter device with the high safety, the problems that a currentlAy-used lifter mostly adopts cooperation between a hydraulic lifting column and an oil pump, the number of mechanical faults is large, a great amount of oil dirt is prone to being generated after long-time use meanwhile, the maintenance cost is also high, in addition, a workbench cannot be moved, and working staff fail to reach the ground quickly under faulty conditions are solved.

The invention discloses a central vacuum cooling apparatus of an EPS foam molding machine. The central vacuum cooling apparatus comprises a primary separation barrel (1), a secondary separation barrel (2), a condensation barrel (3), vacuum pumps (4), nozzles (5) and a water tank (6), the primary separation barrel (1) is connected with the condensation barrel (3) through a pipeline, the secondary separation barrel (2) is connected with the condensation barrel (3) through a pipeline, the bottom of the primary separation barrel (1), the secondary separation barrel (2) and the condensation barrel (3) is connected with the water tank (6) through a butterfly valve and a pipeline, the vacuum pumps (4) are connected with the secondary separation barrel (2) through a pipeline, and a group of nozzles (5) is arranged in the condensation barrel (3). The apparatus has the advantages of simple structure, intensive arrangement of the vacuum pumps, energy consumption reduction, noise reduction and maintenance cost reduction.

The invention discloses an efficient converter protection method for predicting a converter final slag viscosity model, and belongs to the field of converter steelmaking. The method comprises the following steps: data of a secondary charging system of a steel mill is collected in real time through a data acquisition module and the data is transmitted to a calculation processing module; the data processed by the calculation processing module is classified by the judgment processing module to obtain different output results; and finally, an output module is used for controlling a secondary system, human interference is reduced, the smelting time is shortened, and automatic and efficient furnace protection is achieved. According to a system, the final slag viscosity of the converter can be calculated through the prediction model, whether the characteristics of the final slag meet the requirements of slag splashing furnace protection or not can be obtained in real time, the variety and addition amount of a modifier and a matched slag splashing scheme are given through processing and calculation, and blindness and randomness of modification are reduced. According to the efficient converter protection method, the slag splashing time can be shortened, the slag splashing furnace protection effect is improved, and the converter operation rate is increased.