987results about How to "Reduce maintenance" patented technology

The invention relates to the field of transformer parameter regulation and control, in particular to a parameter optimization method and device for a coupling type transformer. The method comprises the following steps: acquiring multi-dimensional real-time working monitoring parameters and real-time working environment state parameters of the coupling type transformer; performing nonlinear dynamic analysis and global state sensing modeling on the multi-dimensional real-time working monitoring parameters so as to construct a transformer global state sensing model; performing multi-parameter combination definition on the multi-dimensional real-time working monitoring parameters, performing dynamic operation simulation based on a transformer global state sensing model, and collecting operation simulation response data of a plurality of schemes; performing multi-target dynamic balance analysis on the operation simulation response data of the plurality of schemes to obtain an optimal transformer working parameter combination; and carrying out environment dynamic parameter change analysis on the real-time working environment state parameters, and constructing a real-time environment condition distribution field. According to the invention, efficient and self-adaptive adjustment transformer parameter optimization is realized.

The invention provides a centrifugal air conditioner gas-liquid separator, and belongs to the technical field of gas-liquid separators, the centrifugal air conditioner gas-liquid separator comprises a cylinder body and a cylinder cover, the cylinder body is connected with a drainage pipe and an air inlet pipe, the cylinder cover is connected with an exhaust pipe, a supporting ring and a fixing ring are arranged in the cylinder body, a drainage plate, a wind shield and a side plate are arranged in the cylinder body, and a backflow pipe is arranged on the outer wall of the cylinder body. The filter assembly comprises a water absorption piece; the extrusion assembly comprises a telescopic air bag and a fixing plate; the guide assembly comprises a drainage cover, an outer tube and an inner tube, and a rotating rod is arranged in the inner tube; the device has the beneficial effects that the wind shield drives the rotating rod to rotate, so that the turbine fan blades rotate to promote gas emission, and meanwhile, the cleaning plate is driven to clean the surface of the lower filter plate, so that the blockage condition is reduced, the filtering effect is improved, timely and effective cleaning is ensured, in addition, the water absorption part can be automatically extruded to drain water, the maintenance and replacement frequency is reduced, and the working efficiency is improved. The use efficiency is improved.

The invention relates to a request device and a response device based on RDMA (Remote Direct Memory Access). The request device comprises a sending processor and a receiving processor; the sending processor is used for receiving a work queue element issued by a driving program, and if the work queue element is an RDMA read operation, the RDMA read operation is converted to obtain a request side write request; the sending processor is also used for sending the request side write request to the response device; and the receiving processor is used for receiving and analyzing a response side write request sent by the response device to obtain target data and a destination address corresponding to the RDMA read operation, and writing the target data into a storage space corresponding to the destination address. Through the application, the QPC data structure domain segment and the design difficulty are reduced, the message disorder processing complexity is reduced, and the consumption of a large amount of host memory and cache resources is avoided.

The invention belongs to the technical field of piling machinery, and relates to a pile driver for road and bridge construction and a using method thereof.The pile driver for road and bridge construction comprises a moving trolley and a pile driving frame installed at the end of the moving trolley, a high-pressure rotary power head is installed on the pile driving frame, and a drill rod assembly is installed on the high-pressure rotary power head; the drill rod assembly comprises a first drill rod assembly, a second drill rod assembly and a third drill rod assembly, and the first drill rod assembly comprises a first outer sleeve, a pressing guide pipe, a rotary drainage pipe and a first hollow pipe which are sleeved together from outside to inside. The advantages of rotary drilling rig equipment and drilling equipment special for hard rock stratums are combined, one piece of equipment can be conveniently used for conducting drilling construction operation mode switching, the technical problem that the same drilling equipment is used for completing two kinds of drilling construction operation in different stratum structures is effectively solved, the construction efficiency is improved, and the construction cost is reduced. And the construction cost is greatly reduced.

The invention discloses a spring operating mechanism fault detection and optimization method and a related device, and the method comprises the steps: carrying out the real-time collection of key data of a spring operating mechanism through a stress sensor, a speed sensor and a vibration sensor; based on the collected key data, constructing a multi-dimensional data framework to obtain a multi-dimensional data set; fault feature extraction and data analysis are carried out on the obtained multi-dimensional data set, an adaptive fault model is constructed based on the extracted fault features, and then a real-time fault detection result is obtained through multi-modal data fusion; and optimizing a stress sensor, a speed sensor and a vibration sensor by utilizing automatic calibration and optimization of reinforcement learning according to the real-time fault detection result. Compared with a traditional fault detection method, high-precision real-time monitoring and fault prediction of the spring operating mechanism are achieved through the multi-modal data fusion and deep learning technology, and comprehensive and reliable technical support is provided for safe operation and maintenance optimization of equipment.

The invention discloses a self-service rental vehicle intelligent scheduling and dynamic battery distribution method, system and device and a storage medium. The self-service rental vehicle intelligent scheduling and dynamic battery distribution method comprises the following steps: S1, predicting a battery demand of a rental network in a future set time period through a linear regression model, and feeding back a prediction result to a cloud scheduling platform; s2, a leasing user requests to lease at a leasing network through a user side application program; s3, the cloud scheduling platform extracts the inventory number information of the lease network in the S2; s4, the cloud scheduling platform continues to extract the historical lease information of the lease user in the S2; s5, the cloud scheduling platform performs judgment through a linear regression model in combination with the detailed information of the batteries and the vehicles in the renting network in the S3 and the historical renting information of the renting users in the S4; and S6, the cloud scheduling platform notifies the battery replacement cabinet system to open a corresponding battery compartment door. The method has the advantages of intelligent scheduling and distribution, improved distribution efficiency, prolonged battery life and the like.

According to the carrier provided by the invention, the parts are simple in structure, a universal mechanical manufacturing process is adopted, and the cost of the carrier can be greatly reduced; the carrying platform is light in weight, so that the driving load and energy consumption can be effectively reduced; a traditional clamping jaw fixing mode is replaced, the application range of the carrying table to the cleaning liquid is expanded, and the maintenance frequency of a client side is reduced; the method can be suitable for wafer products with large warping degree, and the phenomena of vacuum leakage and fragments are effectively avoided.

The invention relates to the technical field of flexible lamp strips, and discloses an FPC-COB flexible lamp strip, a bending degree detection device and a production method.The FPC-COB flexible lamp strip bending degree detection device comprises an installation shell and further comprises a winding wheel connected to the interior in a sliding mode, a transmission belt drives a concave-convex rotating wheel to rotate randomly when rotating, and the transmission belt drives the concave-convex rotating wheel to rotate randomly when rotating; when the pusher stretches, the transmission strip set is pushed through the concave-convex rotating wheel, and therefore the heights of the first upper pressing roller, the first lower pressing roller, the second upper pressing roller and the second lower pressing roller are changed to conduct bending detection on the soft lamp strip. Through rotation of the transmission belt, the concave-convex rotating wheels are in a random rotation state due to inertia after being driven, so that the distances between the concave-convex rotating wheels and the transmission strip group change randomly, it is guaranteed that different positions of each soft lamp strip can be detected at random angles, the weakness of the lamp strip at a specific bending angle can be rapidly recognized, and the detection accuracy is improved. Therefore, adjustment and optimization are carried out, and the effective and random detection effect during automatic production is met.

The invention discloses a fault prediction method for a flexible hand for underwater robot operation, and belongs to the technical field of fault prediction, and the method comprises the steps: obtaining historical fault data collected by a sensor unit, carrying out the preprocessing, carrying out the feature screening, building a fault prediction model based on a time convolution network-bidirectional gating recursive unit neural network, and carrying out the fault prediction. And introducing a chaos mechanism and a crossover mutation improved samson algorithm to carry out hyper-parameter optimization on the fault prediction model to obtain an optimized fault prediction model, and inputting the online operation data of the flexible hand into the model to carry out fault prediction. The fault diagnosis precision can be improved, the long-term maintenance cost of equipment can be reduced through effective fault prediction and maintenance measures, and the overall economic benefit is improved.

The invention belongs to the technical field of grease extraction. The multi-stage extraction and leaching device comprises a first extraction and leaching section, a second extraction and leaching section and a third extraction and leaching section, the first leaching mechanism comprises a first material conveying mechanism and a second material conveying mechanism which have a height difference; the second extraction and leaching section is located below the first extraction and leaching section and comprises a second shell and a second leaching mechanism arranged in the second shell, the feeding end of the second shell communicates with the discharging end of the first shell, and the discharging end of the second shell communicates with the discharging end of the second shell; and the second leaching mechanism comprises a third material conveying mechanism and a fourth material conveying mechanism which have a height difference. The invention further discloses a multi-stage extraction leaching process. The device is used for solving the technical problems that materials of existing leaching equipment are compacted in the conveying process, the permeation rate of a solvent is affected, and the leaching efficiency is low.

The invention discloses a method for enhancing Candida albicans biofilm resistance of azole drugs by using a zinc ion chelating agent, through the combined action of the zinc ion chelating agent N, N, N ', N'-tetra (2-picolyl) ethylenediamine (TPEN) and fluconazole, the activity of the Candida albicans biofilm can be reduced, and the Candida albicans biofilm can be enhanced. The early-stage adhesion process, the medium-stage yeast-to-hypha conversion process and the late-stage maturation process formed by the candida albicans biological membrane are inhibited, the structure of the candida albicans biological membrane is destroyed, then the high drug resistance of the candida albicans biological membrane to fluconazole is reversed, and the pathogenicity of the fluconazole is reduced; the problems of high drug resistance and sustained infection caused by the formation of a candida albicans biofilm are hopefully solved, and a direction is provided for the treatment of clinical fungal infection and the research and development of drugs.

The invention discloses an in-situ integration method of an array bearing temperature sensor, and aims to solve the problem that the complexity of a bearing structure is increased by an existing bearing integrated sensor. The in-situ integration method of the bearing temperature sensor comprises the following steps: 1, cleaning the surface of a bearing; 2, depositing an insulating layer substrate on the surface of the outer ring of the clean bearing by adopting a magnetron sputtering process; 3, adopting a flexible mask plate, and arranging the mask plate on the outer diameter surface of the outer ring of the bearing; 4, sputtering and depositing a thermal resistance sensitive layer on the insulating layer of the outer diameter of the bearing outer ring by adopting a magnetron sputtering process; and 5, sputtering and depositing a protective layer on the thermal resistance sensitive layer of the outer diameter of the bearing outer ring by adopting a magnetron sputtering process to complete the in-situ integration method of the array bearing temperature sensor. The array thermal resistance film temperature sensor is formed by adopting the film thermal resistance sensor in-situ shape-following preparation process, and the structure of the whole system is simplified through the sensor in-situ integration process.

The invention discloses a hydraulic gear pump assembly detection system, which relates to the field of hydraulic gear pump assembly detection. The hydraulic gear pump assembly detection system comprises: a data acquisition subsystem for acquiring component angle data, component distance data, and component surface data of the assembled hydraulic gear pump; a data analysis subsystem for analyzing the component angle data, component distance data, and component surface data of the assembled hydraulic gear pump respectively to obtain the angle detection index, linear size detection index, and surface detection index of the assembled hydraulic gear pump. The invention can comprehensively evaluate the assembly quality of the hydraulic gear pump by integrating multiple detection modules and technical means, which is not limited to a single quality index, but covers multiple aspects such as angle, size, and surface, thereby significantly improving the accuracy and systematicness of the detection, and ensuring that each assembly link meets high quality standards.

The utility model provides a servo hydraulic cylinder pressure-bearing device which comprises a sleeve, and the top of the sleeve is fixedly connected with a rolling mill base. The bottom of the sleeve is detachably connected with a cylinder body of the hydraulic cylinder; the outer side of the sleeve is sleeved with a pressure bearing pad, the bottom of the pressure bearing pad is attached to the top face of the cylinder body, and a jacking assembly is arranged at the top of the pressure bearing pad and used for jacking the pressure bearing pad downwards. The servo hydraulic cylinder pressure-bearing device has the advantages that counter-acting force of the servo hydraulic cylinder in the rolling process is borne through the sleeve and the pressure-bearing pad, the pressure-bearing pad downwards abuts against the cylinder body under the action of the abutting assembly, more counter-acting force is borne, the sleeve is effectively protected and prevented from deforming, the service life of the pressure-bearing device is greatly prolonged, and the service life of the servo hydraulic cylinder is prolonged. And the maintenance and replacement cost of the pressure-bearing device is reduced.

The road obstacle sweeping equipment comprises a vehicle body and a rolling brush, a suction fan used for sucking road obstacles is fixedly installed in the vehicle body, a suction pipe is fixedly installed at an air inlet of the suction fan, and a conveying pipe is fixedly installed at an air outlet of the suction fan; an air outlet pipe is fixedly installed at the top of the suction fan, the end, away from the suction fan, of a conveying pipe is fixedly connected to a sewage tank, a connecting valve pipe is fixedly installed on the right side of the inner wall of the sewage tank, and the end, away from the sewage tank, of the connecting valve pipe is fixedly connected to a clean water tank. According to the road obstacle sweeping equipment, ice and snow accumulated on the road surface are broken through the rolling brush, meanwhile, the snow melting assembly is attached to the residual ice surface on the ground, the ice surface is broken in a hot steam high-temperature melting mode, and then snow water obtained after snow melting and impurities are sucked into the sewage tank through the suction assembly to be stored; and meanwhile, a filtering piece is mounted on a baffle arranged in the sewage tank, so that passing snow water can be continuously softened.

The invention particularly relates to a polyethylene / aramid fiber composite fiber asphalt mixture as well as a preparation method and application thereof. The polyethylene / aramid fiber composite fiber asphalt mixture is prepared from the following raw materials in percentage by weight: 5.8 to 6.0 percent of asphalt, 0.05 to 0.1 percent of polyethylene / aramid fiber, 40 to 59 percent of coarse aggregate, 36 to 53 percent of fine aggregate and 5 to 7 percent of mineral powder. The coarse aggregate is pre-mixed in a layered manner, the ultra-high molecular weight polyethylene fiber and the aramid fiber are co-doped into the asphalt mixture, and the ultra-high molecular weight polyethylene fiber is dissolved in hot asphalt, so that the electrostatic phenomenon of the aramid fiber is reduced, and sufficient dispersion space exists among the coarse aggregate; the aramid fibers can be dispersed in the blending process of the ultra-high molecular weight polyethylene fibers, the dispersity of the aramid fibers is improved along with the friction effect among aggregates, and a three-dimensional network stable structure can be formed more easily. The asphalt mixture obtained by adopting the process has relatively high high-temperature stability, fatigue resistance and aging and cracking resistance.

The invention discloses a sewage treatment equipment operation monitoring system and method based on artificial intelligence, and relates to the technical field of sewage treatment equipment monitoring. The invention relates to a sewage treatment equipment monitoring system based on artificial intelligence. The system comprises a sensor module, a feature fusion module, a self-adaptive multi-modal feature fusion fault prediction model and a real-time monitoring and early warning module. The sensor module is used for carrying out processing and data transmission on the data collected by the equipment; the feature fusion module is used for carrying out feature selection and extraction on the transmitted data and carrying out feature fusion; the adaptive multi-modal feature fusion fault prediction model is used for automatically adjusting a feature fusion weight according to real-time data and historical data and carrying out fault probability calculation on equipment; and the real-time monitoring and early warning module is used for monitoring whether the equipment has an abnormal working state or not through the analyzed real-time data and fault prediction, and giving an early warning to the system according to the abnormal state condition of the system.

The invention relates to the technical field of agricultural machinery, and provides a single-fan positive-negative-pressure double-acting airflow stable supply device for an air-suction type seeder, the air-suction type seeder comprises an air-suction seed-metering device and a seed guide pipe, the air-suction seed-metering device is communicated with the seed guide pipe, and the airflow stable supply device comprises a fan, a negative-pressure seed filling mechanism and a positive-pressure seed conveying mechanism; the fan comprises a negative pressure air inlet and a positive pressure air outlet; one end of the negative-pressure seed filling mechanism is communicated with the negative-pressure air inlet, and the other end of the negative-pressure seed filling mechanism is communicated with an air outlet of the air-suction seed-metering device; one end of the positive-pressure seed conveying mechanism is communicated with the positive-pressure air outlet, and the other end is communicated with the seed guide pipe; the fan is used for providing air pressure for the negative-pressure seed filling mechanism and the positive-pressure seed conveying mechanism, the negative-pressure seed filling mechanism is used for filling the air-suction seed sowing device with seeds through negative pressure, and the positive-pressure seed conveying mechanism is used for conveying the seeds entering the seed guide pipe through positive pressure. The two functions of negative-pressure seed filling and positive-pressure seed conveying are achieved through the single fan, the device is simple in structure and low in cost, and the seeding accuracy and efficiency are improved.

The invention relates to the technical field of grinding equipment, in particular to metal power supply shell grinding equipment. Comprising a rack, and a mounting plate is slidably connected to the upper end of the rack; a driving motor is fixedly mounted at the upper end of the mounting plate; one side of the mounting plate is rotationally connected with a bracket; through arrangement of a detection spring and a pressure sensor, a worm gear can drive a support to rotate in the process that a driving motor drives the worm gear to rotate through a worm, so that the support drives a grinding roller to generate extrusion force on a metal power supply shell, a user does not need to manually press the grinding roller, hand fatigue of an operator is reduced, and the working efficiency is improved. According to the metal shell polishing device, the labor intensity of a user is reduced, the polishing roller in a pressed state applies pressure to the pressure sensor by extruding the detection spring, so that an operator can control the polishing roller to apply stable pressure to the metal shell through data transmitted by the pressure sensor, and then the polishing uniformity of the polishing roller is improved; and the overall grinding quality of the metal power supply shell is improved.

The utility model discloses a wet type brake land leveler rear axle for mine operation, which comprises a first-stage speed reduction assembly, second-stage speed reduction assemblies and a third-stage speed reduction assembly, the second-stage speed reduction assemblies are arranged at the left end and the right end of the first-stage speed reduction assembly, and rotation bearing assemblies are arranged in the second-stage speed reduction assemblies. A three-stage speed reduction assembly is installed at the outer end of the balance box body, a sealing structure, a hardening adjusting sleeve, an auxiliary assembly and a friction plate are installed in the three-stage speed reduction assembly, the three-stage speed reduction assembly is connected with a tire through a connecting disc and a bolt assembly, and the three-stage speed reduction assembly, an output chain wheel, an output shaft disc, a brake sealing cover, a brake shell and a brake disc seat are connected with a motor. And the output chain wheel is in spline connection with the output shaft disc. The wet-type braking land leveler for mine operation is small in rear axle abrasion, capable of meeting the swing requirement of the balance box body, convenient to assemble and maintain, convenient to disassemble and assemble tires, low in built-in abrasion, free of maintenance, large in braking torque, long in service life, safer and more reliable.

The utility model provides a multi-specification oral liquid bottle boxing device which comprises a rack, a middle-layer frame is arranged above the rack, a box conveying line is arranged on the middle-layer frame, a bottle conveying line is arranged on one side of the box conveying line, a top-layer frame is arranged above the middle-layer frame, and a transverse moving force is arranged on one side of the top-layer frame. According to the device, each grabbing head is provided with an independent motor, the distance can be freely adjusted, the device can easily adapt to diversified product sizes, the universality and market competitiveness of the device are enhanced, and the device is convenient to use, high in practicability and suitable for large-scale popularization and application. The problem that in the background technology, each grabbing head cannot be freely adjusted is solved.

The utility model discloses a sewage filtering device for papermaking production, which relates to the technical field of filtering devices, and comprises an outer cylinder and a filtering cylinder arranged in the outer cylinder, a top cover is arranged at the top of the outer cylinder, a water inlet pipe is arranged at the upper part of the side surface of the outer cylinder, and a water outlet pipe and a blow-off pipe are arranged at the bottom of the outer cylinder; a mounting frame sleeving the outer side of the filter cartridge is arranged on the inner side of the annular rail, a plurality of sliding blocks in sliding connection with the annular rail are fixedly connected to the two ends of the mounting frame, a plurality of brushes are mounted on the inner side of the mounting frame through fixing blocks, a lug plate is fixedly connected to the outer side of the mounting frame, and an inner gear ring is mounted at the top of the mounting frame; a gear is mounted at the bottom. According to the sewage treatment device, impact force is generated on the lug plate through sewage, the lug plate is promoted to drive the mounting frame and the brush to rotate along the annular rail, automatic and continuous cleaning of the outside of the filter cartridge is achieved, filter holes are effectively prevented from being blocked, the number of times of manual maintenance and cleaning of the sewage treatment device is reduced, and practicability is high.

The utility model discloses a tank container temperature control remote monitoring and operating system, the tank container is provided with a temperature control cabinet, a controller (1) used for controlling the temperature of the tank container is arranged in the temperature control cabinet, the system comprises a data acquisition transmission end (2), a wireless network communication end (3), a cloud platform (4) and a remote terminal (5), the data acquisition and transmission end (2) is connected with the controller (1), the data acquisition and transmission end (2) is connected with the wireless network communication end (3) through a data line or a wireless signal, the wireless network communication end (3) is connected with the cloud platform (4) through a wireless network, and the cloud platform (4) is connected with the remote terminal (5) through the Internet. According to the utility model, the temperature control of the tank container can be remotely monitored and operated anytime and anywhere through remote terminals such as a mobile phone, a PAD, a computer and the like, the quality and safety of materials in the tank are ensured, the structure is simple, and the practical effect is good.

The invention discloses a plastic particle screening machine, and relates to the technical field of screening machines, the plastic particle screening machine comprises a working frame, the bottom end of the working frame is fixedly connected with a supporting seat, and a screening cylinder is driven to rotate through a servo motor and a worm and gear, so that the screening cylinder throws plastic particles located in a filter sieve to the inner wall of the screening cylinder; the plastic particles with the sizes smaller than those of the holes in the plastic particles enter the next-stage filter sieve, so that the plastic particles can be sieved step by step, the problem that part of the plastic particles with the sizes smaller than those of the plastic particles with the sizes larger than those of the plastic particles without being sieved is solved, the sieving precision can be effectively improved, and the sieving efficiency is improved. The screening machine is simple in structure and large in screening area, the screening efficiency can be effectively improved, meanwhile, the screening stage number can be automatically adjusted by rotating the filtering baffle, the grading screening precision can be adjusted according to the screening requirement, various screening requirements can be met, and the applicability of the screening machine can be effectively improved.

The invention relates to the technical field of transmission devices, and discloses a speed reduction motor which comprises a box body, a first-stage inner gear ring, a second-stage inner gear ring, a first-stage NGW planetary speed reduction mechanism and a second-stage small-tooth-difference planetary speed reduction mechanism are arranged in the box body, and the first-stage NGW planetary speed reduction mechanism comprises a first-stage sun gear, a first-stage planet gear, a first-stage planet carrier and a first-stage inner gear ring. The second-stage small-tooth-difference planetary reduction mechanism comprises a second-stage eccentric shaft, at least two second-stage outer gears, a second-stage pin shaft disc and a second-stage inner gear ring, each eccentric shaft section of the second-stage eccentric shaft is rotationally connected with one second-stage outer gear, one end of the box body is connected with a motor, and the other end of the box body is connected with an end cover in a plugging mode. An output shaft of the motor is in coaxial transmission connection with the first-stage sun gear, the first-stage planet carrier is connected with the second-stage eccentric shaft, and an output shaft section of the second-stage pin shaft disc penetrates through the end cover and is partially exposed out of the end cover. The total reduction ratio can reach 600 or even higher, the bearing capacity is high, the structure is simple and compact, and the occupied space is small.

The invention discloses a movable main transformer cooling device which comprises a water storage tank (1), a radiator (7) is installed above the water storage tank (1), a liquid level switch (5) is installed on the side face of the water storage tank (1), a water inlet (2) is formed in one side of the water storage tank (1), and an electromagnetic valve (4) is installed at the end, away from the water storage tank (1), of the water inlet (2). A water inlet (32) is formed in one side of the water storage tank (1), a water outlet (3) is formed in the other side of the water storage tank (1), one end, far away from the water storage tank (1), of the water outlet (3) is connected with a water inlet (32) of the water purification device, a water outlet (48) of the water purification device is connected with a water suction pump (10) through a PVC water pipe (11), and one end, far away from the water outlet (48) of the water purification device, of the water suction pump (10) is connected with a water injection port of the spraying device. The service life of the transformer is prolonged, the maintenance cycle of the transformer is shortened, and the method has remarkable technical innovation and application value.

The invention discloses a protection device constant value checking method and system. The method comprises the following steps: processing collected first operation constant value data to generate recognizable granulated constant value data; the centralized control station receives the data and establishes a setting value sheet identification model and a shared setting value sheet template library so as to perform data extraction and identification; defining a first fuzzy recognition rule based on the shared constant value single template library; acquiring second operation constant value data, and matching and checking the second operation constant value data through the first fuzzy recognition rule; and if the error of the matching and checking result exceeds a first threshold value, the centralized control station feeds back an abnormal result of the protection device, and checks an abnormal reason of the protection device according to the abnormal result. Aiming at comparison and check between the setting fixed value and the operation fixed value, the system fault of the power grid is reflected in time, the maintenance amount of operation maintenance personnel is reduced, the input cost of a transformer substation printer and maintenance of the transformer substation printer is reduced, carbon emission is reduced through paperless operation and inspection, and remarkable social and economic benefits are achieved.

The utility model relates to the technical field of industry, and discloses a raw material impurity removal device for polyaluminum chloride production, which comprises a box body, and a vibration mechanism is fixedly connected in the box body; and the vibration mechanism comprises first driving motors, a semicircular plate and a first device box, the bottom walls of the two first driving motors are fixedly connected into clamping grooves in the left wall and the right wall in the box body, and the output ends of the two first driving motors are fixedly connected with connecting shafts. According to the impurity removing device, the vibrating mechanism is arranged, so that the problems that small particles or impurities difficult to separate are left in raw materials, the processing capacity of the impurity removing device is reduced, and the same number of raw materials need to be processed for a longer time can be solved; and after the first driving motor is started, the eccentric wheel is driven to rotate through the connecting shaft at the output end, so that the dust removal effect is effectively improved, the condition of blockage caused by particles is reduced, and the working efficiency is improved.

The invention relates to the technical field of transformer pouring tanks, and particularly discloses a vacuum pouring tank for pouring a dry-type transformer, the vacuum pouring tank comprises a tank body, mounting frames are symmetrically and fixedly connected to the outer surfaces of the two sides of the tank body, and a vacuum gauge is fixedly mounted on the side surface of the tank body; and a vacuum pipe is fixedly connected to the outer surface of the side, close to the vacuum gauge, of the tank body in a penetrating mode and arranged on the inner side of the mounting frame. When the interior of the tank body is in a vacuum state, the interior of the tank body is in a negative pressure state, and at the moment, the inner wall of the tank body is subjected to corresponding extrusion force under the suction action of negative pressure; the bottom plate and the top plate are fixedly mounted on the upper surface and the lower surface of the interior of the tank body, so that the two side surfaces of the tank body can be supported through the bottom plate and the top plate when the interior of the tank body is in a negative pressure state, the possibility of deformation of the tank body is greatly reduced, and the vacuum state in the tank body is protected; and the situation of air leakage caused by damage due to deformation of the tank body in a negative pressure state for a long time is avoided.

The invention discloses a heat pump grain dryer based on a water-free automatic dust removal function, and relates to the technical field of drying of various agricultural objects. The heat pump main machine comprises a heat pump main machine shell, a built-in fixing plate is fixedly arranged on the inner wall of the heat pump main machine shell, a wind direction adjusting assembly is arranged at the top end of the built-in fixing plate, and an automatic adjusting and cleaning assembly and a driving assembly are arranged at the bottom of the heat pump main machine shell. A vibration cleaning assembly is arranged on the side, close to the wind direction adjusting assembly, of the inner wall of the heat pump host shell. By arranging the automatic adjusting and cleaning assembly, the automatic adjusting and cleaning assembly drives the fan blades to rotate reversely, meanwhile, the driving shaft drives the driven shaft to rotate, the driven shaft drives the vibration cleaning assembly to operate, grain dust attached to the outer side of the filter screen is loosened through vibration, and the grain dust falls off from the filter screen in cooperation with reverse wind; through the operation, the effect of automatically cleaning grain dust on the outer side of the filter screen is achieved, and the maintenance and replacement cleaning cost is reduced.