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254results about How to "Shorten maintenance cycle" patented technology

Power equipment intelligent diagnosis and maintenance system and method based on knowledge graph

The invention belongs to but not limited to the technical field of fault diagnosis and maintenance of power equipment, and discloses an intelligent diagnosis and maintenance system and method for power equipment based on a knowledge graph. A data acquisition and preprocessing module acquires real-time operation data and historical data of the power equipment; the knowledge graph construction module associates various kinds of information of the power equipment to construct a knowledge graph; the intelligent diagnosis module performs association analysis on power equipment faults based on a knowledge graph and a machine learning algorithm, identifies fault modes and potential faults, and predicts possible faults of the equipment; the maintenance suggestion module automatically generates a detailed maintenance scheme according to the diagnosis result; the operation and maintenance visualization module provides visual fault diagnosis results and maintenance suggestions, supports multi-level data display, and helps operation and maintenance personnel to clearly understand the equipment state. The operation safety of the power equipment is improved, the operation and maintenance cost is remarkably reduced, and the overall efficiency of equipment management in an intelligent power grid environment is improved.
Owner:夏斯韵

Optimization design method for controlling leakage pressure rise of production pipe column

The invention relates to an optimal design method for controlling leakage pressure rise of a production pipe column. The method comprises the steps that whether annulus liquid in an oil sleeve annulus of a target gas well leaks or not is determined; if the annulus liquid in the oil sleeve annulus of the target gas well does not leak, the depth of a leakage point of the production pipe column is determined; under the condition that the depth of the leakage point is determined, a first changing curve of the maximum pressure value of the oil sleeve annulus along with the annulus liquid density is determined; according to the pressure bearing capacity of an oil pipe head, a production pipe column, a production casing and a packer, a second changing curve of the maximum value of the pressure control range of the oil sleeve annulus along with the annulus liquid density is determined; and the annulus liquid density is optimized and determined according to the first change curve and the second change curve, so that the oil sleeve annulus pressure is reduced to be within a safety threshold value. The annular pressure of the oil sleeve can be reduced to be within the safety threshold value on the premise that a production pipe column is not replaced and a well is not overhauled, the pipe column leakage pressure rising phenomenon is effectively controlled, the phenomenon that the pressure bearing capacity of a shaft is exceeded is avoided, the control cost is reduced, and the maintenance period is shortened.
Owner:BEIJING UNIV OF CHEM TECH

Nondestructive flaw detection method for aero-engine blade of micro unmanned aerial vehicle

The invention relates to the technical field of non-destructive testing, and particularly discloses an aero-engine blade non-destructive flaw detection method for a miniature unmanned aerial vehicle, which comprises the following steps: acquiring stress data of a blade in a use process in real time by using an MEMS sensor, analyzing the data, and identifying a stress concentration area; carrying out real-time monitoring on crack data of the stress concentration area, extracting crack propagation fluctuation characteristics by utilizing a wavelet transform algorithm, and calculating a crack propagation fluctuation index; fatigue strength data of the material is monitored, fatigue failure characteristics are extracted, and a fatigue failure index is generated through a support vector machine algorithm; comprehensively analyzing the crack propagation fluctuation index and the fatigue failure index, and judging whether the blade is in a healthy state or not; and finally, based on the blade health state, determining whether to carry out further detection or maintenance.
Owner:泰州学院

Wet dust collector for coal mine

The invention relates to a coal mine wet dust collector applied to the technical field of coal mine dust removal, which comprises a Venturi tube, a rotational flow mechanism, a purification chamber and a dust removal intelligent controller, the rotational flow mechanism comprises a driving part mounted at the lower part of an inner cavity of the Venturi tube, a rotational flow net disc mounted in the circumferential direction of an output shaft of the driving part, and a pressure sensor mounted between the rotational flow net disc and the output shaft of the driving part; a dust treatment module, a rotational flow treatment module and a sludge treatment module are arranged on the dust removal intelligent controller, and by adopting the structure, a mixture of dust and water mist is intercepted by the rotational flow net disc rotating at a high speed when entering the bottom of the Venturi tube, so that the dust removal filtering efficiency is improved; by arranging the dust removal intelligent controller, the sludge pollution condition of the rotational flow net disc can be conveniently and automatically detected, the rotational flow net disc is automatically cleaned and flushed, the service life of equipment is prolonged, the maintenance period is shortened, automatic pollution discharge is achieved, and the dust remover is more automatic and intelligent.
Owner:SHANXI GUOYUAN COALBED METHANE COMPREHENSIVE UTILIZATION ENG TECH CO LTD

Launching pad and launch vehicle launching method

The invention provides a launching pad and a carrier rocket launching method. The launching pad comprises a launching pad body provided with a through flow guide opening, a first heat-proof plate, a second heat-proof plate and a driving structure. The second heat-proof plate detachably covers the inner side wall of the second edge side of the flow guide opening, the first heat-proof plate is rotationally arranged on the inner side wall of the first edge side of the flow guide opening, and the driving structure is arranged at the bottom of the launching pad body and used for driving the first heat-proof plate to rotate to be in an unfolded state or a folded state. And the first heat-proof plate is horizontally arranged at the top of the flow guide opening. During maintenance, the second heat-proof plate can be quickly disassembled so as to facilitate maintenance or replacement, meanwhile, the first heat-proof plate can be rotated to a horizontal unfolding state through the driving structure, a worker stands on the first heat-proof plate to maintain the heat-proof coating, high-altitude operation is not needed, and the safety and convenience of maintenance are improved; and the heat-proof coating is coated in the horizontal state, so that adhesion and uniform distribution of the heat-proof coating are facilitated.
Owner:BEIJING GALAXY POWER EQUIP TECH CO LTD +3

Vehicle remote fault diagnosis method, device, system, equipment and medium

The invention discloses a vehicle remote fault diagnosis method, device, system and equipment and a medium. The method comprises the following steps: acquiring vehicle position information and vehicle fault information of a to-be-diagnosed vehicle; determining a fault reason and a fault level based on the vehicle fault information, and generating a corresponding fault report; determining a target after-sales end based on the vehicle position information and the fault level, and determining the push frequency of the fault report based on the fault level; and pushing the fault report to the target after-sales end according to the pushing frequency, and sending information of the target after-sales end to the to-be-diagnosed vehicle. According to the method, rapid and accurate fault positioning and efficient maintenance are realized, the maintenance experience of a user is remarkably improved, and the after-sales maintenance cost is reduced.
Owner:VOYAH AUTOMOBILE TECH CO LTD

Flow-adjustable water distribution device

The utility model provides a flow-adjustable water distribution device, belongs to the technical field of heating, ventilation and air conditioning, and aims to solve the problems that a large amount of scale can be generated to block spray holes in a water distribution pipe after the conventional water distribution device is used for a long time, and the flow can be controlled according to an actual use environment once the water distribution device is mounted inconveniently. Comprising a water distributor main body, the rotating base is rotationally connected to the bottom of the water distributor main body; the flow adjusting seat is rotationally connected to the bottom of the rotating base; at least four groups of water distribution branch pipes are arranged, and the four groups of water distribution branch pipes are circumferentially and uniformly distributed around the water distributor main body; a plurality of groups of transmission blocks are arranged, and the plurality of groups of transmission blocks are arranged below each group of water distribution branch pipes; the cleaning anti-blocking assembly is arranged below the water distribution branch pipe; and the flow adjusting assembly is arranged below the rotating base. The utility model has the advantages of quick adjustment, convenience in cleaning, blockage prevention and the like.
Owner:SHANDONG PROV CONSTR DESIGN & RES INST

Television intelligent maintenance decision-making method, system and computer program

The invention discloses a television intelligent maintenance decision-making method, and the method comprises the following steps: obtaining historical work order information which at least comprises a television type, a fault description, a fault reason, a maintenance scheme, a maintenance category and used spare parts; constructing an intelligent fault library containing standard faults according to the historical work order information; establishing a knowledge graph according to the historical work order information and the intelligent fault database; acquiring new work order information, performing fault matching with the intelligent fault library according to fault information in the new work order information, and performing maintenance scheme recommendation according to the matched fault based on the knowledge graph; the invention also discloses a television intelligent maintenance decision-making system and a computer program. The intelligent, automatic and personalized television maintenance process can be realized, the quality and efficiency of the maintenance service can be greatly improved, the operation cost can be reduced, and the high-quality and reliable maintenance experience can be provided for the user.
Owner:SHANGHAI MAICHUANG ELECTRONICS

Reservation in-store maintenance control method and device, electronic equipment and storage medium

The invention provides a reservation in-store maintenance control method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle reservation maintenance. The method comprises the following steps: acquiring fault information sent by a user terminal; the fault information is generated by the user terminal after all fault assemblies are determined; a retrieval instruction is sent to all maintenance shops according to the fault information, so that all the maintenance shops make feedback to the server after determining inventory conditions of all the standby assemblies; taking the first type of maintenance shop and the second type of maintenance shop as optional maintenance shops; and arranging the selectable maintenance shops into a push list and sending the push list to the user terminal for the user to select and reserve. The problems that the maintenance period is prolonged and time is wasted due to the fact that a replaceable standby assembly is lacked in vehicle in-store maintenance are solved, and the experience of a user in the aspect of maintenance service can be improved.
Owner:GUANGZHOU GEYUE NEW ENERGY TECH CO LTD

Battery management system, distribution box, battery pack and electric equipment

The utility model relates to a battery management system, a distribution box, a battery pack and electric equipment, the battery management system comprises at least two functional modules and at least one connector, each functional module comprises a circuit board and a component arranged on the circuit board, every two adjacent functional modules are stacked in the thickness direction of the functional modules and are electrically connected through a connector. According to the technical scheme, when the battery management system is assembled, the electric connection of two adjacent functional modules can be realized only through the connector, so that an operator can quickly assemble the battery management system more conveniently, and when a certain functional module is overhauled to have a problem, the battery management system can be quickly assembled. And the functional module can be directly repaired or integrally replaced, so that the maintenance period of the battery management system is greatly shortened.
Owner:SHENZHEN BYD LITHIUM BATTERY

Road and bridge deck node reinforcing device

The utility model relates to the technical field of roads and bridges, in particular to a road and bridge panel joint reinforcing device which comprises a first panel, and a second panel is arranged on one side of the first panel. One side of the first panel and the interior of the second panel are jointly provided with a connecting assembly; the bottom ends of the first panel and the second panel are jointly provided with a reinforcing assembly. Through cooperative use of the square columns, the connecting blocks, the special-shaped blocks, the round rods and the circular truncated cones, the purpose of prolonging the service life of the panels can be achieved, dependence of a single bolt is reduced, a more stable and compact structure can be provided, and therefore the overall bearing capacity and stability are enhanced, displacement and looseness between the panels are reduced, and the service life of the panels is prolonged. The maintenance and repair requirements are reduced, the maintenance cost is reduced, the maintenance period is shortened, and the aging and abrasion of the pavement are effectively slowed down.
Owner:董林汶

Refrigerator valve fault detection method and system

The invention provides a refrigerator valve fault detection method and system, and the method comprises the steps: obtaining operation data which is data stored according to a time sequence, determining a frosting period according to the operation data, extracting the data of the frosting period from the operation data, and detecting the data of a detection unit; the detection unit is a detection unit in a frosting period; calculating a data occupancy rate when the refrigerating chamber temperature data of the detection unit is greater than the preset refrigerating temperature and a data occupancy rate when the freezing chamber temperature data of the detection unit is less than the preset freezing temperature, so as to confirm a first fault direction through the data occupancy rate of the preset refrigerating temperature, and confirm a second fault direction through the data occupancy rate of the preset freezing temperature, the first fault direction is from the electric valve to the refrigeration direction, and the second fault direction is from the electric valve to the freezing direction. According to the method, whether the refrigerator valve breaks down or not is judged by obtaining the operation information of the refrigerator, the fault can be found in time, the maintenance period of the refrigerator is shortened, and the maintenance efficiency is improved.
Owner:CHANGHONG MEILING CO LTD

Double-hearth two-stage heating vacuum distillation furnace

The application discloses a double-hearth two-stage heating vacuum distillation furnace, which comprises an evaporation furnace and a condensation furnace which are communicated through a gas passage, wherein the evaporation furnace comprises an evaporation furnace body and at least one top heating mechanism which is detachably arranged on the top of the evaporation furnace body; and the condensation furnace comprises a condensation furnace body, a side heating structure and a furnace cover, wherein the condensation furnace body is divided into a temperature control condensation chamber and a plurality of layers of multistage condensation chambers, and the gas passage can be combined or replaced according to the required reaction conditions of different materials. The vacuum distillation furnace can collect different metals through the gradient change of the temperature of the two hearths, reduces the process of secondary distillation of volatile matters after the furnace is stopped, can complete the processing of diversified raw materials, improves the work efficiency and reduces the processing cost; the modular top heating mode directly radiates heat to the materials, improves the heat utilization rate, can realize the working mode of stopping the furnace without stopping the work, helps to improve the work efficiency, and is convenient for completing the furnace cleaning, maintenance and solid material taking and placing.
Owner:KUNMING DIBOO TECH

Automatic positioning tool for repairing stator blade of low-pressure compressor of CFM56 engine

The utility model discloses a CFM56 engine low-pressure compressor stator blade repair automatic positioning tool, which comprises a support, a milling head seat fixed on the support, a lifting rod, a metal elastic sleeve and a hand wheel, a transmission mechanism is arranged in the milling head seat, the hand wheel is arranged on the side surface of the milling head seat and is in transmission connection with the transmission mechanism, and the lifting rod is connected with the lifting rod. The elastic sleeve is vertically arranged on the top face of the milling head seat, an open hole extending in the height direction of the elastic sleeve and penetrating through the upper end of the elastic sleeve is formed in the side wall of the elastic sleeve, the lower end of the lifting rod is in linkage with the transmission mechanism, and the upper end of the lifting rod penetrates through the elastic sleeve. And the upper end of the lifting rod is provided with an expansion part which is used for expanding the elastic sleeve to enable the elastic sleeve to be expanded in the reference mounting hole of the blade workpiece so as to position the blade workpiece. According to the utility model, the elastic sleeve is expanded through the expansion part, and the blade reference mounting hole is expanded by the elastic sleeve, so that the coaxiality of the blade reference mounting hole and the elastic sleeve is less than 0.05 mm, the blade is automatically positioned, the use is convenient during batch maintenance, and the working efficiency is improved.
Owner:MTU MAINTENANCE ZHUHAI CO LTD

Fiber reinforced composite material with strain-damage self-sensing function and preparation method thereof

PendingCN119286190AIncreased damage perception sensitivityImprove fracture toughnessPolyethylene glycolCarbon nanotube
The invention discloses a fiber reinforced composite material with a strain-damage self-sensing function and a preparation method of the fiber reinforced composite material. The fiber reinforced composite material comprises the following components: 0.1-0.5 part of dopamine; 0.1 to 1 part of a hydroxylated multi-walled carbon nanotube; 3-5 parts of nano titanium dioxide; 20 to 60 parts of acetone; 20 to 80 parts of absolute ethyl alcohol; 80 to 120 parts of deionized water; 1-10 parts of polyethylene glycol; 0.1 to 2 parts of ammonia water; 0.1 to 1 part of polyvinylpyrrolidone; 1-3 parts of a silane coupling agent; 60-80 parts of unidirectional fiber cloth; 1 to 5 parts of polycaprolactone (PCL); according to the preparation method disclosed by the invention, the service life of the resin-based composite material can be prolonged, the material is endowed with intelligent self-sensing and self-healing functionalization, and meanwhile, the fiber-reinforced composite material can sense the occurrence and development of damage through resistance change by utilizing the high electric conduction and heat conduction characteristics of the multi-walled carbon nanotubes; the damage is monitored in real time, the relation between the damage and the resistance change can be deeply understood, and the maintenance period is shortened.
Owner:长三角碳纤维及复合材料技术创新中心

Cylindrical head suspension insulator

The invention belongs to the technical field of insulators, particularly relates to a cylindrical head suspension insulator, and aims to solve the problems that in the prior art, oil stains and dust are easily accumulated on the surface of an insulator after the surface of the insulator is exposed outside for a long time, flashover phenomena are easily generated, and then the insulator is easily damaged. Comprising a suspension mechanism fixed to the lower surface of the end of a mounting channel steel, the suspension mechanism comprises a first clamping piece fixed to the lower surface of the mounting channel steel, a second clamping piece is clamped to the lower surface of the first clamping piece, a knob insulator body is fixed to the lower surface of the second clamping piece, and a plurality of large discs with the same diameter are arranged in the middle of the knob insulator body. The cleaning device can cooperate with the arrangement of an arc-shaped plate in wind and rain to enable a brush rod in the cleaning mechanism to brush on the surface of the large disc in a swinging manner, so that the surface of the large disc at the position can be cleaned up, surface disruptive discharge caused by formation of a discharge loop on the surface of an insulator is prevented, and the service life of the insulator can be prolonged; and the maintenance period can be greatly reduced.
Owner:JIANGXI ZHENGQIANG ELECTRIC PORCELAIN ELECTRIC CO LTD

Electronic product and memory firmware updating method thereof

The invention provides an electronic product and a memory firmware updating method thereof, and the electronic product comprises a data transmission interface which is used for receiving a firmware updating data packet burnt by a host end; the input end of the connecting circuit is electrically connected with the data transmission interface; the central controller is used for electrifying the memory; the memory comprises a main control module and a flash memory module; when the firmware in the memory is updated, the channel configuration circuit controls the communication between the data transmission interface and the memory, and the data transmission interface sends a firmware updating data packet into the memory; and the main control module is used for processing the firmware updating data packet, generating target format data, verifying the target format data, generating qualified target format data, and updating the firmware in the flash memory module according to the qualified target format data. The firmware updating efficiency of the memory in the electronic product can be effectively improved.
Owner:合肥康芯威存储技术有限公司

Method, device and system for determining fault of master-slave communication line

The invention provides a fault determination method, device and system for a master-slave communication line, and relates to the technical field of fault detection.The method comprises the steps that under the condition that it is detected that a master-slave communication loss fault exists in a vehicle machine, whether collected data sent by a monitoring device DTU is received or not is determined; the method comprises the following steps: determining a current communication line in a working state under the condition of determining that collected data is received, counting and accumulating a first fault frequency under the condition of determining that the current communication line is a first communication line, and controlling closing and opening of the line through an MOS tube under the condition of determining that the first fault frequency is greater than or equal to a preset frequency. Therefore, the first communication line is in an open state and the second communication line is in a closed state. Through the design of double communication lines and an automatic switching mechanism, the stability and safety of master-slave communication are remarkably improved, a standby line can be quickly switched, the actual vehicle use experience of customers is improved, and the communication continuity is ensured.
Owner:XIAOGAN CORNEX NEW ENERGY INNOVATION TECHNOLOGY CO LTD

Low-resistance backflow preventer

The invention discloses a low-resistance backflow preventer, and relates to the technical field of backflow preventers, the low-resistance backflow preventer comprises a main valve body, two elastic sealing check valves and a hydraulic differential type water escape valve, a sliding seat is slidably sleeved outside a valve rod between a valve seat and a valve plate, and an annular sealing air bag cushion is sleeved outside the sliding seat; a first spring is arranged between the sliding seat and the valve plate, a buffering assembly is arranged between the sliding seat and the valve seat, a plurality of water guide pipes are arranged between the water storage device and the sliding seat, an air guide pipe is arranged between the air inflation device and the sliding seat, the sealing air bag cushion is communicated with the air guide pipe through a mounting ring and the sliding seat, and annular protrusions are arranged on the inner surface of the first groove and the inner surface of the second groove. According to the elastic sealing check valve, the situation that impurities are clamped into the two sides of the sealing air bag cushion in the closing process of the elastic sealing check valve can be prevented, the sealing performance of the elastic sealing check valve can be effectively improved, liquid back seepage caused by poor sealing is prevented, and the purpose of automatically cleaning the impurities attached to the sealing air bag cushion can be achieved.
Owner:SHANGHAI BIAOYI VALVE

Pneumatic accessory comprehensive test bench

The utility model discloses a comprehensive test board for pneumatic accessories, which comprises a test board body, and an air source and a pressure output end are arranged in the test board body. The air source comprises an air source and a nitrogen source, and the air source is connected with a plurality of low-pressure output ports through a low-pressure test pipeline to form a low-pressure test system; the pressure output end comprises low-pressure pressure output ports and a high-pressure pressure output port, the low-pressure pressure output ports are connected in parallel, and a nitrogen gas source is connected with the high-pressure pressure output port through a high-pressure test pipeline to form a high-pressure test system. The test requirements of most pneumatic accessories can be met, the multiple low-pressure test systems carry out low-pressure tests on the multiple pneumatic accessories at the same time, the maintenance efficiency and the product quality can be greatly improved, and the maintenance period of products is greatly shortened.
Owner:SHANGHAI FEIYE AVIATION TECH CO LTD

Jig

A tool for mounting and dismounting a lower bushing of an epitaxial device, comprising: a main frame, a plurality of telescopic members and a plurality of linkage members; the main frame has a first support part and a second support part oppositely arranged along a first direction, and has a limiting space between the first support part and the second support part for limiting the lower bushing; the plurality of telescopic members are arranged at intervals around the second support part along the first direction, and each telescopic member can be telescoped along a different second direction, the first direction being perpendicular to the second direction; one end of each linkage member is connected with one telescopic member, and the other end is slidingly connected with the main frame; the first support part is provided with a connecting part for connecting with an external lifting device. The present application can avoid the lower bushing from shaking during the mounting process, ensure that the lower bushing in the limiting space always maintains a stable posture during the mounting process, reduce the risk of jam caused by horizontal deviation from the root, improve the mounting stability, and reduce the probability of the lower bushing being broken.
Owner:ZING SEMICON CORP

Strawberry elevated planting water and fertilizer integrated device

PendingCN121867085AIncrease planting yieldAdapt to growth conditionsShaking/oscillating/vibrating mixersTransportation and packagingFragariaAgricultural science
The invention belongs to the technical field of strawberry planting, and discloses a strawberry elevated planting water and fertilizer integrated device which comprises a control box, a gravel filter is installed on the rear side of the control box, the gravel filter is fixedly communicated with a laminated filter, and through cooperation of structures such as an outer pipe, an inner pipe, a spiral groove and an inclined hole, a double-layer drip irrigation pipeline is utilized, and the water and fertilizer integrated device is formed. By rotating the adjusting inner pipe, the drip irrigation point position can be adjusted, long-time drip irrigation at the same point position is avoided, each strawberry plant can uniformly receive fertilizer irrigation, the drip irrigation density can be adjusted, the drip irrigation rate can be adjusted in cooperation with a machine body, the device effectively adapts to the plant growth condition, constant-speed and accurate drip irrigation is achieved, it is ensured that the plant growth environment is basically consistent, and the quality is improved; the double-layer pipeline of the outer pipe and the inner pipe is adopted for drip irrigation, compared with a traditional mode that two single-layer pipes are used, the number of branches is reduced, the water pressure needed by a single planting box can be effectively reduced, more production lines can be increased, and therefore the strawberry planting yield is increased.
Owner:SHIJIAZHUANG POMOLOGY INST OF HEBEI ACADEMY OF AGRI & FORESTRY SCI

Three-dimensional optical rapid fine adjustment locking structure

The utility model discloses a three-dimensional optical rapid fine adjustment locking structure which comprises a mounting base, a lens assembly, an adjusting seat plate, a first adjusting assembly and a second adjusting assembly. The lens assembly is connected to the mounting base and then forms a light path with the through hole of the mounting base; the adjusting seat plate is connected to the mounting base, and the first adjusting assembly is connected with the lens assembly and the mounting base; the second adjusting assembly is connected with the adjusting seat plate and the lens assembly; the first adjusting assembly, the second adjusting assembly and the lens assembly are in contact connection through spherical surfaces. The beneficial effects of the utility model are that the optical lens can be accurately adjusted and locked in three dimensions of RX, RY and TZ, through the modular design of multiple groups of structures, the integration level of the optical system is improved, and the reliability of the designed optical system is expanded.
Owner:江淮前沿技术协同创新中心

Waterproof and anti-seepage structure of basement connecting joint

The utility model belongs to the technical field of waterproof of lower room structures, and particularly relates to a waterproof and anti-leakage structure of a basement connection node. In order to solve the problems that complex water seepage paths are difficult to resist, the maintenance cost is increased due to inconvenience in disassembly and maintenance and a waterproof layer is easy to crack due to insufficient deformation coordination of a rigid assembly and a wall body in the existing single-layer waterproof or permanent fixed installation design, the following scheme is provided: the waterproof structure comprises an existing wall body and a newly-built wall body; a multi-stage water seepage blocking path is formed through the inner waterproof layer and the water stop steel plate, and even if a single layer is damaged, underground water pressure can still be effectively resisted; quick disassembly and assembly are achieved through threaded connection and a clamping structure, wall damage is avoided, and the maintenance cost is remarkably reduced; the flexible coiled material and the sealing rubber strip absorb structural deformation displacement, the fixing block embedment design limits displacement of the waterproof belt, long-term stability under dynamic loads is ensured, and the technical problems that a traditional waterproof layer cracks, is difficult to maintain and poor in adaptability are comprehensively solved.
Owner:SHENZHEN DECHENG CONSTR ENG CO LTD

Simple and convenient sleeve dismounting tool and method for ignition fuel injector

The invention discloses a simple sleeve disassembling tool and method for a fuel injector. The tool comprises a lead screw, a cross beam, a lead screw nut, a tension block, a round pin and a bolt. Wherein the cross beam is fixed on the cylinder cover above the mounting hole, the screw rod sequentially penetrates through a central hole of the cross beam and an inner hole of the bushing from top to bottom, and the lower end of the screw rod extends out of the lower part of the bushing; the tension block is hinged to the lower portion of the lead screw through a round pin, the lead screw nut is rotated on the lead screw around the round pin to be connected to the lead screw, the tension block and the lead screw are connected in a 90-degree mode and penetrate through an inner hole of the lining from top to bottom, then the tension block rotates by 90 degrees by means of gravity and is coaxial with the lead screw, the lead screw nut rotates and pulls the lead screw upwards through threads by means of the cross beam, and the tension block and the lead screw are connected in a 90-degree mode. The upper plane of the tension block is tightly attached to the lower end face of the lining through the peripheral part, the lead screw continues to move upwards, force is applied through the tension block, the lining is pulled upwards, interference friction force between the lining and the mounting hole is overcome, and the lining is detached from the mounting hole of the cylinder cover. The cylinder cover does not need to be dismantled from the main engine, and the effects of improving the operation efficiency, shortening the maintenance time and reducing the production cost are achieved.
Owner:CSSC MES DIESEL

Controller online parameter configuration method and system, program burning method and device

The application provides a controller online parameter configuration method and system, a program burning method and device. The controller parameter configuration method is to read parameter information in a controller program according to a data reading instruction; the parameter information is stored in a specified storage address in the controller; when it is needed to modify parameters or functions, the parameter information is modified according to a modification instruction; the modified parameter information is written into the specified storage address in the controller, wherein the modified parameter information replaces the original parameter information. The advantage of this is that the whole program does not need to be recompiled, the user can directly edit the parameter information, the program does not need to be reconstructed, the development period and the maintenance period can be shortened, the user is easier to use, a large amount of repetitive modification and maintenance work can be saved, and development resources can be saved.
Owner:SHENZHEN GREENWAY TECH CO LTD

Carbon dioxide removal process and system without heating regeneration at normal temperature

The application discloses a kind of without heating regeneration carbon dioxide normal temperature removal process and system, belong to natural gas decarburization field;A kind of without heating regeneration carbon dioxide normal temperature removal process, comprising the following steps:S1, raw material gas pretreatment;S2, CO2 absorption;S3, rich liquid flash evaporation;S4, lean liquid regeneration;S5, material circulation;The application is effectively solved by the absorption part of being set, the pain point that edge filler reaction is not sufficient, the low life of central filler;Can shake and scatter adhesion filler ball, clean filter hole impurity, avoid filter hole blockage, further improve gas-liquid mass transfer efficiency;Can buffer knock impact force, prevent that filler plate is damaged;Can effectively protect electric telescopic rod, and maintenance is convenient, need not to disassemble whole tower body, shorten maintenance cycle, guarantee production continuity;Can avoid liquid flooding, channeling phenomenon.
Owner:YINYAN KAIPU ENVIRONMENTAL PROTECTION ENG TECH BEIJING

An electronic product and a memory firmware updating method thereof

The present invention provides an electronic product and a method for updating the firmware of a memory thereof, comprising: a data transmission interface for receiving a firmware update data packet burned by a host end; a connection circuit, an input end of which is electrically connected to the data transmission interface; a central controller for powering on the memory; the memory, comprising a main control module and a flash memory module; a channel configuration circuit, when the firmware in the memory is updated, the channel configuration circuit controls the connection between the data transmission interface and the memory, and the data transmission interface sends the firmware update data packet to the memory; the main control module is used to process the firmware update data packet, generate target format data, perform verification processing on the target format data, generate verified qualified target format data, and perform update processing on the firmware in the flash memory module according to the verified qualified target format data. The present invention can effectively improve the firmware update efficiency of the memory in the electronic product.
Owner:合肥康芯威存储技术有限公司