224results about How to "Avoid downtime" patented technology

The utility model discloses a waste gas treatment machine for welding waste gas purification, which comprises a liquid tank and a valve body, the top end of the liquid tank is provided with the valve body, the side wall of the valve body is provided with a support arm, the outer wall of the valve body is provided with two groups of exhaust pipes, the side wall of the support arm is movably provided with an electric push rod, and the electric push rod is movably provided with an exhaust pipe. A push arm is installed at the output end of the electric push rod, a linkage arm is movably installed at the end, away from the electric push rod, of the push arm, a driving shaft is fixedly installed at the end, close to the valve body, of the linkage arm, the driving shaft extends into the valve body and is movably connected with the valve body, and a flow dividing block is arranged in the valve body. And the driving shaft is connected with a flow dividing block, and two sets of exhaust channels are formed in the flow dividing block. According to the utility model, the exhaust gas is conveniently filtered and treated through two channels, the situation that the processor is shut down when the filter block is replaced is avoided, and the efficiency and the quality of exhaust gas treatment are improved.

This invention discloses a collaborative optimization method for power supply guarantee of distribution networks before and during floods, comprising: obtaining the water depth change process of each distribution node; introducing drainage vehicles to proactively drain water in advance and dynamically correcting the water depth at the nodes; establishing pre-disaster deployment constraints for drainage vehicles and mobile energy storage vehicles and dynamic scheduling constraints during the disaster; constructing a two-stage collaborative optimization model before and during the disaster, including load reduction, drainage vehicle operation, mobile energy storage vehicle operation, distributed power output, and distribution network power flow and network reconfiguration, and transforming the model into a mixed integer second-order cone programming problem for solution. This invention fully utilizes the process characteristic of "gradual water accumulation" in floods, avoids the shutdown of critical equipment by proactively draining water in advance, and combines mobile energy storage, distributed power sources, and network reconfiguration to achieve collaborative optimization of power supply guarantee of the distribution network throughout the entire process of floods, effectively reducing load loss and shortening the duration of power outages.

The utility model provides a kind of automatic screening device of parts, including screening device, and screening device includes upper layer cavity, and the bottom surface of upper layer cavity is inclined to be inclined surface, for making pipe fitting under gravity downward roll. The lowest place of upper layer cavity is equipped with discharge chute. The downside of upper layer cavity is equipped with screening chamber, and screening chamber is equipped with length screening groove, and length screening groove is equipped in screening chamber far from one end of discharge chute. The bottom surface of screening chamber is inclined to be inclined surface from discharge chute to length screening groove. The downside of screening chamber is equipped with collection groove, and collection groove is used to collect unqualified pipe fitting. The end far from discharge chute of screening chamber is equipped with qualified product taking area, and qualified product taking area is extended and is equipped in length screening groove downstream for the bottom surface of screening chamber. Qualified product taking area is equipped with horizontal platform of fence. The utility model realizes length screening to pipe fitting by mechanical structure using pipe fitting gravity, saves manpower cost, reduces equipment cost and energy consumption.

The invention relates to the technical field of shield tunnel engineering, and discloses an intelligent energy management method and system for a shield tunneling machine, and the method comprises the steps: S1, sensor deployment and data collection: respectively installing sensors in a cutterhead driving system, a duct piece installation system, a propulsion system and a grouting system of the shield tunneling machine, the extraction module is used for extracting energy consumption and construction state parameters of each subsystem of the shield tunneling machine; s2, data preprocessing is carried out on the collected real-time tunnel face geological parameters and corresponding subsystem energy consumption parameters, and a'geological condition-equipment working condition-energy consumption 'multi-dimensional mapping model is constructed based on a machine learning algorithm and used for outputting theoretical optimal energy consumption intervals under different working conditions; and S3, based on the progress of the construction task and the energy consumption efficiency of each subsystem, combining the model constructed in the S2, and dynamically adjusting the energy distribution priority of each subsystem through a multi-objective optimization algorithm. According to the method, collaborative optimization of construction efficiency and energy consumption is facilitated, the total energy consumption of the shield tunneling machine can be reduced, and the energy-saving effect is more remarkable.

The utility model discloses a continuous stamping gear stamping device with waste recovery relates to stamping device technical field, the utility model discloses a rack, waste recovery subassembly, stamping subassembly and rotating component, the rack and rotating component's bottom all are through bolt and ground fixed connection, the utility model discloses a waste recovery subassembly realizes the automatic cleaning of residual waste, motor one drive gear two, gear one transmission, drive cleaning brush rotates in female mould inner chamber, utilize wear -resisting brush hair to sweep clean the uncompacted loose powder of mould cavity bottom, the waste material is swept clean, and the waste material is discharged through the hollow cavity of cleaning brush and enters the discharge pipe, avoids the waste material accumulation and occupies the cavity space, and this can keep the punch and female mould cooperation gap to meet the design requirement, prevents gear blank and appears the density uneven, key size deviation problem because of the gap deviation, reduces the concave, impurity embedding etc. defect caused by residual powder and the surface friction of compaction base simultaneously, and the product pass rate is improved significantly.

The utility model belongs to the field of negative ion detection technology discloses air negative ion automatic observation appearance, including the casing, the inside fixed mounting of casing has negative ion sensor and controller, negative ion sensor sets up two, can alternately use two negative ion sensors all with controller electricity is connected, the side fixed embedding of controller has display screen, display screen and controller electricity is connected, the utility model sets up two alternately usable negative ion sensors, through controller time -sharing switch working condition. When one sensor detects, another can start fan reversal and carry out self -cleaning, avoid single sensor failure and lead to equipment shutdown, satisfy long -term continuous monitoring demand, reduce maintenance influence to monitoring continuity, the reverse convex sealing ring between lower porcelain cover and lower insulating cover is under the spring pressure effect, closely fits lower porcelain cover inner wall and lower insulating cover bottom, effectively prevents air leakage, guarantees the detection airflow stability.

The application discloses a power supply control system of an air conditioner and the air conditioner, relates to the technical field of air conditioners, and provides the following technical scheme: multiple input ends of a switching module are connected with multiple AC power supplies, output ends are connected with an air compressor frequency converter, a fan frequency converter and an energy storage module, the energy storage module is connected with the air compressor frequency converter, is used for storing energy when the switching module outputs AC power, and outputs electric energy to the air compressor frequency converter when the switching module stops outputting AC power, and a processor is connected with the switching module, the air compressor frequency converter and the fan frequency converter, and is used for controlling the fan frequency converter to output electric energy output by the fan to the air compressor frequency converter after conversion when controlling the switching module to switch AC power of the input end. In the switching process of the AC power, the air compressor is supplied with power by the energy storage module, the fan and the fan frequency converter, the continuous power supply of the air compressor is guaranteed, the air conditioner is prevented from stopping running in the switching process of the power supply, and the requirement that the air conditioner does not stop running within 24 hours is achieved.

The utility model discloses a kind of cleaning devices of evaporation boat deposits, belong to evaporation boat cleaning technical field, comprising: base, the top of the base is equipped with portal frame, the top of the portal frame is equipped with U-shaped plate by adjusting assembly, the bottom of the U-shaped plate is equipped with the cleaning assembly for the evaporation boat placing groove side wall and bottom cleaning, the sidewall of the portal frame is equipped with the collection mechanism for the evaporation boat placing groove inside deposit collection after being cleaned conveniently. The device integrates cleaning and collection function, without additional independent collection equipment, avoid the tedious steps of artificial transfer deposit after cleaning, without manual operation, greatly improve overall cleaning efficiency, and can realize stable cleaning to the space of evaporation boat, will not cause evaporation boat boat surface uneven even damage, ensure the temperature consistency of evaporation boat to prevent splashing, while portal frame structure can stably support adjusting assembly and cleaning assembly, ensure that equipment runs stably during cleaning process.

The application discloses a kind of dust removal pipe network block material intelligent monitoring systems, including pipe network monitoring module, signal processing module, man-machine interaction early warning module and unblock execution mechanism;Pipe network monitoring module is used to collect upstream and downstream pressure difference signal, vibration signal and dust concentration on pipeline;Signal processing module is connected with pipe network monitoring module to collect and fuse pressure difference, vibration and concentration signal and judge block material state, and according to preset algorithm, block material grade division and block material position positioning are carried out;Man-machine interaction early warning module is electrically connected with signal processing module to visually display and grade early warning on block material condition, and start pulse airflow to impact unblock operation on pipeline by linkage unblock execution mechanism.This application can realize online monitoring, block point positioning, block material grade judgment, automatic early warning and linkage unblock of dust removal pipe network block material, so as to avoid production line shutdown caused by complete pipe network blockage, significantly improve the operation continuity and safety of cut tobacco production line.

This invention discloses a drilling device for processing and producing wrought iron railings, relating to the field of wrought iron railing processing technology. It includes a support leg, a drilling mechanism, and a fourth transmission rail. The drilling mechanism is located on the top of the support leg, and the fourth transmission rail is installed on the top of the support leg. The drilling mechanism includes multiple positioning frames that slide on the top of the fourth transmission rail. Each positioning frame has a railing placement groove on its top to ensure the holes are at the same horizontal position. After drilling, the railings are directly welded and fixed, ensuring that the holes of the connecting pieces align with the connecting posts during subsequent bolt connections. This improves installation quality and avoids enlarged holes and misalignment of the railings after installation. This process ensures that the holes of the connecting pieces and connecting posts correspond perfectly, improving hole accuracy. Direct welding after drilling reduces process steps, increases processing efficiency, and ensures overall structural dimensional stability.

The utility model relates to activated carbon processing technical field discloses a kind of efficient energy-saving vertical coal quality activated carbon calcining furnace of multilayer heat insulation structure, comprising: the support seat of supporting main body, the inner wall of the support seat is fixedly connected with combustion furnace, the top of the combustion furnace is fixedly connected with fixed box, the top of the fixed box is fixedly connected with first motor, the drive end of the first motor is fixedly connected with rotating rod and is penetrated through fixed box, the outer wall of the rotating rod is fixedly connected with connecting plate.The utility model in this paper, rotating rod is driven by first motor, rotating rod drives connecting plate, connecting plate rotates, gear and gear ring cooperate to drive rotating shaft, rotating rod and rotating shaft drive stirring plate to stir, then open air heater to make it suck external air and heat, air will enter from air inlet and then be discharged from air outlet, so that each particle or each layer of raw material can receive heat evenly, which helps to improve the stability of calcination effect and product quality.

The utility model belongs to the technical field of cement processing, and particularly relates to an equipment heat insulation structure, which comprises a heat resistance component mounted between a cement mill cylinder and a slide shoe bearing, the heat resistance component comprises a support framework fixedly connected to the outer wall of the cement mill cylinder and an annular frame in sliding connection with a support tile, the supporting framework is fixedly connected with the annular frame, the heat resistance assembly effectively blocks transmission of heat of materials in the cement mill barrel by separating the cement mill barrel from the supporting tile from direct contact, and therefore the operation temperature of the sliding shoe is reduced, and the heat resistance assembly is arranged between the cement mill barrel and the sliding shoe bearing, so that the heat resistance of the cement mill barrel is improved. The cement mill cylinder and the supporting tile are separated from direct contact, so that heat of materials in the cement mill cylinder transferred to the sliding shoe can be effectively reduced, the running temperature of the sliding shoe is reduced, the cement mill is prevented from being shut down due to too high temperature, the production problem is effectively solved, and smooth production is guaranteed.

The utility model relates to PVC membrane production technical field, and disclose a kind of PVC extended pressure film efficient winding mechanism, including, fixedly connected with vertical plate on base, further include: winding assembly of winding PVC extended pressure film, install on vertical plate, adjusting assembly for adjusting the position of winding assembly is also installed on vertical plate;The utility model is by setting two groups of winding assembly, using first motor drives the rotation of connecting seat to realize alternate winding, avoid the downtime of single winding assembly when winding, greatly improve winding efficiency, adopt the design of hydraulic rod to promote arc push rod, can quickly push the winding roller that winding is finished from pivot, realize the convenient replacement of winding roller, reduce artificial operation difficulty and time cost, transmission assembly is equipped with rotating roller and protective rod, rotating roller can stably convey the PVC extended pressure film that winding is good, protective rod can effectively prevent film body from falling, guarantee the stability and security of transmission process.

The invention discloses a control method and system for a variable frequency air conditioner with a humidity sensor, and the method comprises the following steps: S1, temperature and humidity data collection: collecting environment humidity data in real time at the frequency of 1-5Hz through the humidity sensor arranged on an indoor air return side, synchronously collecting indoor environment temperature data, and sending the indoor environment temperature data to a server; filtering, denoising and abnormal value removing processing are carried out on the collected temperature and humidity data, and the processed temperature and humidity data are transmitted to a control center. The humidity sensor collects data in real time and is combined with the temperature and humidity adaptive model, so that temperature and humidity collaborative precise adjustment is achieved, the comfort degree problems of high humidity, stuffiness, low humidity, dryness and the like caused by only temperature control of a traditional air conditioner are solved, dependence on an independent dehumidification module is not needed, operation energy consumption is effectively reduced, and the humidity adjustment response speed is effectively increased; meanwhile, fixed parameter control limitation is broken through, and the operation efficiency of the variable-frequency driving system is effectively improved.

The utility model belongs to the technical field of cut tobacco production, and discloses a blanking cover, a blanking device and airflow cut tobacco drying equipment. The blanking cover comprises a body, a cover plate and a heating assembly. Wherein the body is provided with a cavity for materials to pass through; the cover plates are detachably connected with the body, the cover plates are annularly arranged on the outer wall of the body, and an interlayer space is formed between the cover plates and the body; the heating assembly comprises a heating pipe, at least part of the heating pipe is arranged in a circuitous and reciprocating mode along the outer wall of the body, the heating pipe is detachably connected with the outer wall of the body and / or the inner wall of the cover plate, at least part of the heating pipe is located in the interlayer space, and the heating pipe is used for heating the cavity. According to the utility model, the problems that wet tobacco powder is easy to adhere to the inner wall of the blanking cover and the risk of quality defect of yellow spot tobacco exists in production can be solved, meanwhile, the complexity and the cost of the structure are reduced, and the process quality is improved.

The invention relates to the technical field of waste heat recovery, in particular to a system and method for recovering compression heat of an air compressor for preheating boiler feed water. The system comprises an air compressor waste heat recovery subsystem and a boiler feed water preheating subsystem. The air compressor waste heat recovery subsystem comprises a multi-stage centrifugal air compressor, a first-stage compressor, a second-stage compressor and a third-stage compressor are sequentially integrated in the multi-stage centrifugal air compressor, and an outlet of the first-stage compressor and an outlet of the second-stage compressor are connected to the hot side of the efficient heat exchanger through pipelines. The cold side of the efficient heat exchanger, the circulating water pump and the surge tank form a closed circulating water loop through pipelines; the make-up pump is connected to the closed circulating water loop; the boiler feed water preheating subsystem comprises a desalting water tank, a deoxidizing feed pump, a water-water heat exchanger, a deaerator and a boiler which are sequentially connected through pipelines, and the water-water heat exchanger is connected into a circulating water pipeline of the air compressor waste heat recovery subsystem. Compression heat of the centrifugal air compressor is recycled and used for preheating boiler feed water. The waste heat utilization rate is improved.

The utility model discloses a kind of screening devices for feed processing, it is related to feed processing device technical field.The utility model includes storage tank and the cylinder being set above storage tank, cleaning mechanism and vibration mechanism are arranged in the storage tank and cylinder;The top of the storage tank is rotatably connected with connecting ring, the bottom of the cylinder is rotatably connected with connecting ring, the inner wall of the cylinder is fixedly connected with sieve plate, the cleaning mechanism includes motor fixedly connected at the bottom of storage tank, the output shaft of the motor is fixedly connected with rotating shaft by coupling, the top of the rotating shaft penetrates storage tank, and the rotating shaft is rotatably connected with storage tank.The utility model sets up cleaning mechanism, solved the existing screening device in use process, not convenient to collect the feed of large particle in time, these large particle feed can be detained on screen, along with the screening, these large particle feed can be plugged sieve hole, and then affect the continuous operation of equipment.

The utility model discloses a liquid carbon dioxide pressure injection system pipe network pressure stabilizing and degassing device which comprises a shell, a base end cover is arranged at the bottom of the shell, a shell top cover is arranged at the arc-shaped top, a bottom tee joint is arranged below the shell, and a center outlet of the bottom tee joint is connected with a center opening of the base end cover; the first chamber is located at the bottom of an inner cavity of the shell, a bottom piston is arranged above the first chamber, and two reverse one-way valves which are communicated upwards are symmetrically arranged on the bottom piston; the second chamber is located above the bottom piston, and a floating piston is arranged above the second chamber; a variable cavity is arranged above the floating piston; the bottom of the air bag is elastically connected with the floating piston, and the top of the air bag abuts against the lower portion of the top center hole of the shell. And the top automatic overflow valve is embedded in a center hole in the top wall of the shell top cover. The pipe network pressure-stabilizing degassing device for the liquid carbon dioxide pressure injection system can eliminate the influence of carbon dioxide gasification on the pump, meanwhile, the stable operation of the high-pressure pressure injection pump and the liquid feeding shield pump is effectively guaranteed, unattended operation is truly achieved, and the safety and reliability of the system are improved.

The utility model discloses a drying application device with a pipeline incrustation cleaning structure, relates to the technical field of drying application, and aims to solve the problems of pipeline blockage and low heat efficiency caused by incrustation accumulation of a closed water circulation system. On the basis of a drying room, a water supplementing tank, a circulating hot water pump, an air energy normal-temperature and high-temperature heat pump unit and other components are arranged, detachable connecting sleeves and connecting pipes are arranged on the outer sides of pipelines such as a main water pipe entering the drying room, cross rods are arranged on the inner sides of the pipelines, and the cross rods are matched with a cleaning device composed of a cleaning wiper and a pull rope. During use, the connecting sleeve and the connecting pipe are disconnected, the pull rope is pulled to enable the cleaning eraser to move in a manner of being attached to the inner wall of the pipeline, and scale can be quickly scraped. According to the device, through a convenient incrustation cleaning structure, corrosion of chemical cleaning to the pipeline is avoided, and the maintenance cost is reduced; pipeline heat transfer performance is recovered, and energy utilization efficiency is improved; the drying room has the advantages of being reasonable in structure and high in practicability.

The utility model discloses a fan pressurization adjusting device which comprises a pressurization machine, a gas flow rate sensor is installed at the gas inlet end of the pressurization machine, and an adjusting structure is installed at one end of the gas flow rate sensor. In a normal state, a reinforcing part is closed, the flow rate of coal gas is adjusted through an adjusting valve, if the flow rate value is smaller than the minimum limit value of the adjusting valve, the reinforcing part works, namely, a driving assembly works, under connection of a driven bevel gear, a rotating rod rotates on a fixed sleeve through a bearing, and fan blades rotate accordingly; and the gas flow flowing through the connecting pipe is accelerated and pressurized until the gas flow rate sensor detects that the gas flow rate reaches a standard value, so that the normal work of the pressurizing machine is ensured, the shutdown of the pressurizing machine is avoided, the sufficient gas supply is ensured, the normal work of the combustor is ensured, the combustion efficiency is ensured, the required temperature is reached, and the continuity of industrial production and the product quality are ensured.

The present application belongs to the technical field of metal cutting machining control, and particularly relates to a chip removal control method and system for a machining center, which method comprises: collecting real-time vibration signals of the machining center and preprocessing to obtain pure vibration signals; performing periodic stationarity analysis on the pure vibration signals to obtain periodic stationarity purity of each frequency band signal and determine an optimal characteristic frequency band; extracting features capable of representing chip accumulation evolution trend based on the optimal characteristic frequency band and performing real-time grading on the chip accumulation state; and executing a matching active avoidance or graded response control strategy according to the chip accumulation state grade. The present application can accurately distinguish random chip accumulation impact from normal machining load fluctuation, significantly improve the robustness and sensitivity of monitoring, and realize intelligent control upgrade from passive response to active avoidance.

The utility model discloses an underground mine ventilation device which comprises a ventilator, an air outlet pipe is arranged at the top of the front side of the ventilator, an air inlet pipe is arranged on the right side of the ventilator, a filtering piece is arranged at the end of the air inlet pipe and is designed to be of a structure with more than half of a sphere, and a fixing mechanism is arranged between the filtering piece and the air inlet pipe. According to the underground mine ventilation device, the filtering part of the more than half spherical structure is arranged, so that the filtering area is greatly increased, and compared with a traditional filtering part, the filtering efficiency is effectively improved; through the fixing mechanism with the locking ring matched with the positioning ring, the filtering piece can be rapidly mounted or dismounted only by rotating the driving rod, operation is easy and convenient, and the maintenance difficulty and time cost are reduced.

The invention provides an energy storage DC-DC control module structure device, and relates to the technical field of energy storage equipment, the energy storage DC-DC control module structure device comprises a module shell, the left side and the right side of the module shell are both provided with fixing supports, the left side of the module shell is provided with a first connector, the right side of the module shell is provided with a second connector, and the module shell is provided with a module upper cover. A sealing ring and a module PCBA are arranged in the module shell, the module shell is made of a high-strength alloy material, an installation groove matched with the installation of the module PCBA is formed in the module shell, a limiting structure is arranged on the wall of the groove, and the fixing support is assembled in the module shell. The space occupation and the carrying cost of the energy storage equipment are greatly reduced, the device is not only suitable for a fixed energy storage power station, but also can be flexibly applied to mobile energy storage scenes such as a portable energy storage power supply, a mobile charging station and a vehicle-mounted energy storage system, and the market application range of the product is effectively expanded.

The utility model relates to the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle for monitoring land subsidence. The monitoring mechanism is connected to the bottom of the unmanned aerial vehicle body, and the monitoring mechanism comprises a rolling body and a sensor; the rolling body is suitable for being in contact with the ground and can slide close to or away from the unmanned aerial vehicle body; and the sensor is used for monitoring the height change of the rolling body relative to the unmanned aerial vehicle body. By means of the arrangement, when traditional monitoring equipment is difficult to use normally due to weather interference, the unmanned aerial vehicle can fly at low altitude, the rolling bodies at the bottom of the unmanned aerial vehicle make contact with the ground, and when the ground fluctuates, the rolling bodies can slide close to or away from the unmanned aerial vehicle body; at the moment, the height change of the rolling body relative to the unmanned aerial vehicle body is measured through the sensor, the settlement condition of the ground can be measured, the problem that effective monitoring cannot be achieved due to interference of factors such as weather is effectively avoided, efficient and high-precision data acquisition is achieved, and the applicability is improved.

The invention relates to the technical field of industrial internet, and provides an intelligent robot control method and system based on the industrial internet, and the method comprises the steps: obtaining the task instruction information of a to-be-executed task and the equipment attribute information of each available robot in a plurality of available robots; according to the task instruction information, determining multiple pieces of task requirement information of the to-be-executed task and environment influence information which influences the environment when the to-be-executed task is executed; determining a plurality of to-be-selected robots capable of executing the to-be-executed tasks in the plurality of available robots; according to the equipment attribute information of the to-be-selected robot and the environment influence information of the to-be-executed task, determining a machine damage index of the to-be-executed task executed by the to-be-selected robot; and determining a target robot in the plurality of to-be-selected robots according to the machine damage indexes of the to-be-selected robots, and controlling the target robot to execute the to-be-executed task. Through the scheme, the control message of the intelligent robot can be improved.

The utility model relates to a heat dissipation assembly and its charging box technical field discloses a kind of heat dissipation assembly and its charging box, the heat dissipation assembly includes shell, and shell inside is arranged with connecting plate, and the connecting plate is equipped with heat dissipation hole, and the heat dissipation assembly further includes heat dissipation fan, power supply and power port linkage, provide stable electric power for four groups of node instruments, and real-time feedback power supply state by two groups of LED indicator light, this modularization setting integrates power supply, heat dissipation, signal transmission in shell interior, while simplifying wiring complexity, when maintaining, can quickly locate fault node, reduce operation and maintenance cost.

The utility model provides an exhaust device, an exhaust system and wafer processing equipment. The two ends of the air exhaust device are in fluid connection with a machining cavity of the wafer machining equipment and an air duct outside the wafer machining equipment respectively, and the air exhaust device comprises a first air exhaust pipe, a second air exhaust pipe and a third air exhaust pipe, the branch pipe is arranged at the communicating hole of the first exhaust pipe and is in fluid communication with the first exhaust pipe through the communicating hole, and the branch pipe is configured to be connected with the air pressure detector; and the second exhaust pipe is at least partially nested in the first exhaust pipe, the side wall of the second exhaust pipe at least covers the communicating hole, and a buffer gap is formed between the side wall of the second exhaust pipe and the side wall of the first exhaust pipe at the communicating hole, so that the situation that airflow carries machining dust to impact into the branch pipe is avoided. According to the technical scheme, the airflow speed at the branch pipe is remarkably reduced, vortex is effectively prevented, and dust deposition of the branch pipe and the pressure measuring air pipe is avoided.

The utility model discloses a kind of multi-channel silt pump pump body structure, including submersible pump, the one side of submersible pump is equipped with drain pipe, the lower end outer surface of submersible pump is fixedly installed with four-way pipe, the pumping end of submersible pump lower part is inserted to the inside of four-way pipe, the outer wall of four-way pipe is provided with pumping pipe, and the quantity of the pumping pipe is four groups, four groups the pumping pipe end close to four-way pipe is equipped with electric valve, the outer wall of pumping pipe is equipped with filter structure.The utility model discloses a kind of multi-channel silt pump pump body structure, by being equipped with four-way pipe, with four groups pumping pipe, after a group of pumping pipe is blocked, still can open other pumping pipe and use, avoid a group of pumping pipe is blocked and need to stop machine maintenance, by being equipped with filter structure, it is convenient to filter larger particle impurity, and it is convenient to dismount maintenance.

The invention discloses a solid-phase composite manufacturing device based on micro-macro wire feeding and a composite material manufacturing method.The solid-phase composite manufacturing device based on micro-macro wire feeding comprises a macro additive manufacturing module and a micro additive manufacturing module, and the macro additive manufacturing module comprises a first wire feeding mechanism and a first stirring head; a first spiral groove is formed in the periphery of one end of the first stirring head, the first wire feeding mechanism is used for conveying a base material towards the first spiral groove, the microscopic additive manufacturing module comprises a second wire feeding mechanism and a second stirring head, and the second stirring head is arranged in the first stirring head and can rotate relative to the first stirring head; a second spiral groove is formed in the periphery of the end, close to the first spiral groove, of the second stirring head. The second wire feeding mechanism is used for conveying reinforcing materials towards the second spiral groove. According to the solid-phase composite manufacturing device based on micro-macro wire feeding, the composite material with the reinforcing material distribution controllable can be manufactured, and the base material and the reinforcing material can be conveyed without shutdown.

This invention discloses a method for judging and correcting the flattening phenomenon of wind turbine blade root load, comprising the following steps: acquiring real-time blade load data under grid-connected operation of the wind turbine; judging whether the blade root oscillation load data in the real-time blade load data has a flattening phenomenon; judging whether it needs to be merged into a single flattening segment based on the interval between each flattening segment, and calculating the cumulative duration of the flattening segment; judging whether the cumulative duration is not greater than a preset cumulative duration threshold; extracting features of the normal segment located in the previous cycle of each flattening segment from the blade root oscillation load data; generating replacement loads for the flattening segment based on the features and performing segment-by-sine replacement on each flattening segment, while smoothly connecting the start and end points of the flattening segment to complete the correction of the flattening phenomenon of wind turbine blade root load. This invention corrects flattening through feature extraction and sinusoidal load generation, meeting the load testing accuracy requirements, avoiding long-term wind turbine shutdowns, and reducing power generation losses.