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107results about How to "Does not affect normal operation" patented technology

Photovoltaic module control device

The embodiment of the invention provides a photovoltaic module control device, and the device comprises at least one bypass module which is used for being connected with at least one photovoltaic module in parallel; the driving circuit is used for driving at least one bypass module to work under the control of the controller; the power supply module is used for obtaining electric energy from the at least one photovoltaic module and outputting the electric energy to the controller under the condition that the at least one photovoltaic module works normally and the at least one photovoltaic module is bypassed; and the controller is used for controlling the conduction state of the at least one bypass module so as to control whether the at least one photovoltaic module is in the bypass mode or not. The power consumption of the control device is greatly reduced, meanwhile, the problem of voltage stress borne by the first series switch tube in the series control device when the first series switch tube is disconnected is solved, and the safety performance of the bypass control device is improved.
Owner:SUZHOU UKT NEW ENERGY TECH CO LTD

Coal gasification chilling water filtering system

The invention relates to the field of coal gasification chilled water, in particular to a coal gasification chilled water filtering system which comprises at least two filter bodies connected into a coal gasification chilled water system and arranged in parallel, and each filter body comprises a shell, a V-shaped sieve plate, a sieve plate flushing assembly and a shell flushing assembly. According to the coal gasification chilled water filtering system, on-line automatic dual cleaning of the filter body can be achieved, under the condition that normal operation of the filtering system is not affected, high-pressure grey water of a coal gasification grey water system is used for cleaning the sieve plate from the upper portion through the top flushing spray head, the inner wall of the shell is flushed through the combination of the side flushing pipe, and the filtering effect is good. The flushing effect of the filter body is improved, the service life of the filter body is prolonged, recycling of the filter body is achieved, the problems that at present, ash blocks the filter, chilled water supply is insufficient, and a gasification furnace cannot operate for a long period are solved, the working intensity of workers is reduced, and the production investment cost is saved.
Owner:NINGXIA BAICHUAN TECH CO LTD

Power business anti-quantum cryptography migration progressive control method based on risk perception

The invention provides a power business anti-quantum cryptography migration progressive control method based on risk awareness, and belongs to the technical field of migration control, and the method comprises the steps: collecting key parameters of all to-be-migrated businesses in a power system, carrying out the standardization preprocessing of the collected key parameters, and constructing a business feature matrix; acquiring relevant parameters of quantum attacks in real time, and calculating a real-time quantum attack risk value of each service to be migrated; based on the service feature matrix and the real-time quantum attack risk value, constructing a dynamic migration rhythm adaptation model, and calculating a migration priority, a migration rate and a migration interval of each service to be migrated; and constructing a migration fault-tolerant and recovery model, monitoring the migration process in real time, calculating a fault influence range and recovery cost based on fault information, and executing corresponding adjustment operation. Accurate, dynamic and high-reliability control of anti-quantum password migration of the power business is realized, safe and stable operation of the power business in the migration process is guaranteed, and the migration efficiency and the anti-quantum attack capability are improved.
Owner:NANJING NANZI DIGITAL SECURITY TECH CO LTD +1

A combined operation trolley for arch-anchoring and grouting and a construction method thereof

An arch-anchor-grouting combined operation trolley and a construction method relate to the technical field of tunnel construction equipment, comprising a trailer body and a boom system for construction operations, and also comprising an operation platform and a stirring grouting device; the trailer body is provided with a chassis structure that can be separated from the bottom of the operation platform; the four corner ends of the operation platform are provided with hydraulic legs for lifting and supporting the operation platform; a stirring grouting device for grouting operations is provided at the bottom of one side of the operation platform corresponding to the position between the front and rear wheels of the trailer body; the discharge port of the stirring device is correspondingly connected to the feed port of a screw conveyor through a plug valve; the operation end of the telescopic arm of the boom system is detachably connected with an adaptive clamp; the operation platform of the invention can be separated from the trailer body; one vehicle has two uses, which improves practicality; the stirring device is integrated on the operation platform, which is convenient for grouting operations during tunnel construction; the adaptive clamp of the invention has higher clamping reliability.
Owner:LUOYANG ZHONGTIE STRONG MACHINERY

Method for calculating train braking force based on heavy-load combined train pipe pressure fluctuation

PendingCN119611296ACalculate the impact of braking force in real timeCalculate ambient temperature changes in real timeBraking systemsAir brakeControl theory
The invention provides a method for calculating train braking force based on heavy-load combined train pipe pressure fluctuation, and belongs to the technical field of locomotive braking force calculation. The problem that the requirement for exploration and analysis of heavy-load train pipe pressure fluctuation influence factors cannot be met in the current detection and test of a heavy-load train air braking system is solved. Comprising the following steps: calculating the brake cylinder pressure of the vehicle according to pressure air of an auxiliary air cylinder when the vehicle is braked and pressure air filled into a brake cylinder by a train pipe through a local reduction valve in the secondary local reduction process; the step of calculating the braking force of the vehicle comprises the substeps of calculating brake shoe pressure; calculating the friction coefficient of the brake shoe; calculating the braking force of a single brake shoe; calculating the air braking force of the whole heavy haul train; calculating the train pipe pressure reduction r0 when the braking force of the whole heavy-load train is not influenced by the temperature, calculating the train braking force when the braking force of the whole heavy-load train is not influenced by the temperature according to the r0, and calculating the train braking force when the braking force of the whole heavy-load train is influenced by the temperature; the method is applied to train braking force analysis and calculation.
Owner:SCI & TECH RES INST OF DAQIN RAILWAY CO LTD +1

A lifting hoist device for wind power plant installation

The utility model discloses a kind of lifting hoisting devices for wind power generation equipment installation, it is related to hoisting technical field, and the utility model includes bottom plate, the top surface side of bottom plate is equipped with limiting assembly, the top surface of bottom plate is fixedly connected with lifting assembly, the lifting assembly includes base, the top of base is fixedly connected with two first fixed plate, the opposite side of two first fixed plate One end is rotatably connected with first rotating shaft, the top of base two sides is fixedly connected with support frame, the upper portion of one end of support frame is fixedly connected with two second fixed plate, the opposite side of two second fixed plate One end is rotatably connected with second rotating shaft with the two sides inner wall of support frame, the two sides inner wall of support frame is slidably connected with limiting plate, the utility model can play the specified height of wind power generation equipment hoisting, and wind power generation equipment can be prevented from falling when avoiding power failure and power failure.
Owner:CHINA RAILWAY NO 10 BUREAU GRP ELECTRIC ENG CO LTD

Tower crane foundation structure arranged on original underground structure top plate and construction method of tower crane foundation structure

The invention relates to a tower crane foundation structure arranged on an original underground structure top plate and a construction method of the tower crane foundation structure. The tower crane foundation structure comprises a plurality of steel plates, supporting steel bars, concrete supporting columns, a concrete main beam, a concrete secondary beam and a concrete connecting plate; each steel plate corresponds to an original underground structure frame column below an original underground structure top plate, supporting steel bars are welded to each steel plate, main beam steel bars are bound between the supporting steel bars on every two adjacent steel plates, and secondary beam steel bars are bound between every two sets of oppositely-arranged main beam steel bars. Concrete connecting plate steel bars are bound on the main beam steel bars; the upper surface of each steel plate is connected with a concrete supporting column. A concrete main beam is connected between every two adjacent concrete supporting columns. A concrete secondary beam is connected between the two concrete main beams which are oppositely arranged; the concrete main beams, the concrete secondary beams and the concrete supporting columns are connected with concrete connecting plates. The structure is stable, and construction is easy.
Owner:CCCC RUITONG CONSTR ENG CO LTD +1

A DC common bus current limiting and blocking device

This utility model relates to the field of power electronics technology, specifically to a DC common bus current limiting and blocking device. It includes an energy storage converter and a DC bus terminal, with a blocking module disposed between the energy storage converter and the DC bus terminal. The blocking module includes multiple blocking units, and the energy storage converter is connected to the blocking units. The blocking units are connected in parallel to each other and connected to the DC bus terminal. This DC common bus current limiting and blocking device can achieve rapid current limiting and isolation when multiple energy storage converters are connected in parallel to the DC bus. It has high response speed and dynamic detection capability, and can effectively avoid the adverse effects of abnormal current caused by faulty equipment on other equipment.
Owner:HANGZHOU LIVOLTEK POWER CO LTD

Top heat dissipation type liquid cooling container and application control method thereof

According to the top heat dissipation type liquid cooling container and the application control method thereof, the cooling tower container top arrangement design is adopted, a CDU module is omitted, the overall cost is reduced, more Tanks can be deployed in the spare space after the CDU module is omitted, and the computing power of a single liquid cooling container is greatly improved. The cooling tower is compact in structural form, low in space occupancy rate, higher in integration degree and good in universality and reliability, and the ground space of the cooling tower is saved. After a certain cooling tower fails, normal operation of other devices is not affected, and the disaster recovery capacity is improved. The cooling tower and the Tank carry out heat exchange one by one, the heat dissipation efficiency is higher, the number of water cooling pipelines is smaller, and the integration degree is higher.
Owner:HANGZHOU JINQUN TECHNOLOGY CO LTD

A flue gas desulfurization device with crystallization outside a desulfurization absorption tower

A flue gas desulfurization device of desulfurization absorption tower external crystallization, comprising the following units, a flue gas desulfurization unit: comprising a main flue gas duct subunit, a desulfurization absorption subunit; a flue gas evaporation crystallization unit: comprising a secondary flue gas duct subunit, an evaporation crystallization subunit and a solid-liquid separation subunit connected in sequence; the desulfurization absorption subunit comprises a desulfurization absorption tower, a circulating pump, a circulating tank, a desulfurizer supply device, a process water supply device and an oxidizing air supply device; the main flue gas duct subunit comprises a pipeline connected to the desulfurization absorption tower as an inlet and outlet flue; a boiler induced draft fan and a damper are connected in series on the pipeline; one pipeline of the main flue gas is connected to the desulfurization absorption tower, and another pipeline is connected in parallel to a crystallization booster fan and a flue which is connected to the evaporation crystallization subunit; the evaporation crystallization subunit is additionally provided with two pipelines connected to the desulfurization absorption tower, one of which is used to introduce a desulfurization byproduct solution from the desulfurization absorption tower, and the other of which is used to return low-temperature flue gas to the desulfurization absorption tower.
Owner:NANJING SHENGCHUANG TECH CO LTD

Catalytic reaction rectification unit, apparatus and method

This invention discloses a catalytic reactive distillation unit, apparatus, and method. The catalytic reactive distillation unit includes: a reaction mass transfer channel, the upper end of which receives low-temperature liquid-phase reactants flowing downwards, and the lower end of which receives high-temperature gas phase flowing upwards; the reaction mass transfer channel contains a catalyst layer and a packing layer, with the catalyst layer positioned above the packing layer, and a first space between them; and a rising gas bypass, located outside the reaction mass transfer channel and connected to the first space. The liquid-phase products after the catalytic reaction merge with the high-temperature gas phase in the packing layer and undergo gas-liquid mass transfer. The rising gas phase after mass transfer carries the light components from the liquid-phase products into the rising gas bypass, completing mass transfer separation. This invention, through the setting of the rising gas bypass, not only increases the gas phase flow rate and effectively reduces the pressure drop within the reaction mass transfer channel, but also effectively solves the space occupation problem of the equipment. This invention can clean the blockage of the catalyst filter without additional power and can realize online replacement of the catalyst and / or packing.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Protective structure for power output driven shaft of tractor

A protection structure for a power output driven shaft of a tractor comprises a power output shell. A driven shaft bearing and a driven shaft bearing clamp spring for limiting the axial movement of the driven shaft bearing are arranged in the power output shell; the power output driven shaft is mounted on the inner sides of the driven shaft bearing clamp spring and the driven shaft bearing; and the power output shell is provided with a protective flange for providing support when the driven shaft bearing snap spring deforms. Axial impact force generated by the universal transmission shaft on the power output shaft during transition of the tractor or working with a machine tool is overcome, and faults such as breakage and damage of a bearing clamp spring, early abrasion of a power output shell and tooth breaking of a gear caused by axial movement of a driven shaft due to overlarge axial impact force are prevented.
Owner:FIRST TRACTOR

A kind of anti-falling device for multifunctional overhead travelling crane operation of electrolytic aluminium

The utility model relates to electrolytic aluminium equipment technical field, concretely relates to a kind of anti-falling device of electrolytic aluminium multifunctional crown block operation, including anode lifting rod, anode lifting rod is hinged with screw head lifting mechanism, anode lifting rod is fixedly connected with mounting block, mounting block is equipped with containing cavity, containing cavity is equipped with through-hole, the outside of mounting block is equipped with first hydraulic cylinder;Screw head lifting mechanism is hinged with screw head mechanism, screw head mechanism is fixedly connected with mounting plate, mounting plate is fixedly connected with fixed link, fixed link is hinged with swing arm, second hydraulic cylinder is hinged between swing arm and mounting plate, one end of swing arm is fixedly connected with connecting plate, one end of connecting plate is fixedly connected with support plate.The utility model is inserted into the through hole of anode guide rod top by the telescopic end of first hydraulic cylinder, realizes mechanical locking, and the bottom of small box clamp is held by support plate by second hydraulic cylinder drive, thereby the risk of anode guide rod and small box clamp falling off can be reduced.
Owner:DINGJIANG HEAVY IND CO LTD

Filament stretching device for manufacturing synthetic fibers

The utility model discloses a filament stretching device for manufacturing synthetic fibers, which comprises a drawing machine, and the drawing machine comprises an equipment box, a drawing roller and a yarn separating column. The replacement assembly comprises a mounting plate, two U-shaped guide grooves, a supporting plate, a mounting hole, a threaded hole and a locking rod, the mounting plate is fixed to the upper end of the side edge of the equipment box, one side edge of the U-shaped guide grooves is fixed to one end of the mounting plate, the supporting plate is fixed between the two U-shaped guide grooves, the mounting hole is formed in the middle of the supporting plate, and the threaded hole is formed in the middle of the supporting plate. The threaded holes are formed in the two ends of the supporting plate and communicate with the mounting holes, and the locking rods are connected into the threaded holes in a threaded mode. The problems that due to the fact that the distance between the yarn separating columns is small, fibers are affected by high temperature, moisture or oil stains exist on the surfaces of the fibers, the middles of the yarn separating columns are blocked, then the fibers are adhered, the stretching quality of the fibers is affected, and the production schedule is affected when the yarn separating columns are cleaned or replaced after a machine is shut down are solved.
Owner:GUANGDONG XINHOU HIGH-TECH MATERIALS CO LTD

A device for protecting a flatness measuring machine stage probe

ActiveCN224475444UDoes not affect normal operationGuaranteed to be free from interference
The utility model discloses a device for flatness measurement machine table measuring head protection, including the protection cover and gas delivery system of lower end opening, the protection cover is used to cover flatness measurement machine table measuring head downwards, gas delivery system includes gas delivery pipeline, the nozzle of being located gas delivery pipeline terminal and the filter component of being located nozzle upstream, the nozzle is used to the clean gas injection of inside protection cover. This application is through setting up the protection cover of covering measuring head and gas delivery system, through the continuous injection of clean gas in the protection cover of gas delivery system, provides clean, stable environment for machine table measuring head, makes measuring head exempt from environmental dust, chemical gas interference, and this mode does not influence the normal operation of measuring head, makes machine table always be in normal working state, improves flatness measurement machine table measurement data accuracy, accuracy and stability, has important technical value to improve wafer product quality in wafer foundry.
Owner:WAFER WORKS ZHENGZHOU CORP

A new energy box transformer low-voltage side cable grounding fault positioning method and system

PendingCN122506289ASignificant predictabilitysignificant initiative
This invention relates to the field of transformer substation fault location technology, specifically disclosing a method and system for locating cable grounding faults on the low-voltage side of a new energy transformer substation. The method includes: plotting three-phase voltage variation curves based on historical three-phase voltage data from the low-voltage side of the transformer substation; clustering detection cycles based on the three-phase voltage variation curves, and determining a voltage tolerance threshold for the detection cycle based on the clustering results; determining voltage fault indicators on the low-voltage side of the transformer substation based on the voltage tolerance threshold, and correcting the initial values ​​based on the voltage fault indicators; extracting abnormal data points from the detection cycle based on the corrected values ​​using the LOF algorithm, and locating the current cable grounding fault location on the low-voltage side of the transformer substation based on the abnormal data points from the fault cycle. This method can promptly detect and accurately locate cable grounding faults on the low-voltage side of the transformer substation, improving the operational reliability of new energy power plants and ensuring power generation efficiency.
Owner:HUANENG YANTAI BAJIAO THERMOELECTRIC CO LTD

Unpowered emergency drainage device for flooded factory building of hydraulic power plant

The invention discloses an unpowered emergency drainage device for a flooded plant of a hydraulic power plant. The unpowered emergency drainage device comprises a buoyancy assembly, a transmission assembly, a drainage channel and a drainage channel thrust butterfly valve. The buoyancy assembly at least comprises a driving block, and the drainage channel thrust butterfly valve is installed in the drainage channel. The transmission assembly comprises a fixed transmission seat, a telescopic power rod and a transmission rod, and the fixed transmission seat is fixedly mounted; the telescopic power rod is rotationally mounted on the fixed transmission seat, one end of the telescopic power rod is rotationally connected with the driving block, and the other end is a transmission part; the transmission rod is slidably mounted on the fixed transmission seat, one end of the transmission rod is in contact with the transmission portion, and the other end of the transmission rod is in contact with the drainage channel thrust butterfly valve. Buoyancy or gravity is ingeniously used as a driving source, so that the driving block can automatically ascend or descend along with the change of the water level, the opening and closing of the corresponding valve are driven through the ascending or descending action of the driving block, the opening and closing of the drainage channel are effectively controlled, and the device can automatically operate under the conditions of power failure and circuit failure.
Owner:SANXIA JINSHAJIANG YUNCHUAN HYDROPOWER DEV CO LTD +1

A detector and detection method for the action status of disconnecting switches in GIS equipment

ActiveCN116718904BGet rid of dependenceRealize automatic detection and judgment
This invention relates to the field of power equipment testing technology, specifically to a detector and method for detecting the operational status of disconnecting switches in GIS equipment. The method first generates an action signal based on a first current; then generates a second current and a trigger signal based on the action signal; next, it calculates the current change rate based on the first and second currents; and based on the trigger signal, it determines whether the current change rate is less than a first threshold. If the current change rate is less than the first threshold, an alarm signal is generated. Finally, it determines whether the closing and opening of the circuit breaker are qualified based on the alarm signal. By detecting the induced current generated on the conductor of the grounding switch in the energized part of the GIS equipment, the opening and closing status of the internal disconnecting switch of the GIS equipment is judged. Regardless of whether the mechanical structure of the equipment is normal, it can accurately determine whether the disconnecting switch is properly closed or open, effectively avoiding faults such as discharge, short circuit, and explosion caused by improper closing or opening of the equipment.
Owner:YIBIN POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER

A cleaning mechanism for a vacuum system of an extruder

A purification mechanism for a vacuum system in an extruder includes a housing, a water supply tank, a water storage tank, and a connecting pipe. The housing contains a water seal layer. The top of the housing has an inlet pipe for connecting to the extruder's exhaust gas source and an exhaust pipe for connecting to the vacuum system. The downstream end of the inlet pipe extends downwards into the water seal layer. An overflow port, adapted to the height of the water seal layer, is located on the side wall of the housing. A filter frame is installed on the top of the water storage tank, below the overflow port. The water supply tank is located above the housing and connected to it via a float valve, the float of which floats on the water seal layer. The upstream end of the connecting pipe is connected to the bottom of the water storage tank, and the downstream end supplies water to the water supply tank. A water pump is installed on the connecting pipe. This invention has a simple structure, low operating cost, and can meet the need for removing impurities from extruder exhaust gas for extended periods.
Owner:YOUHE (CHONGQING) NEW MATERIAL CO LTD

Graded cooling distillation tower

The invention discloses a staged cooling distillation tower, relates to the technical field of distillation equipment, and aims to solve the technical problem of poor condensation effect due to the adoption of a single or two-stage cooling structure in a conventional distillation tower cooling system. A pre-cooling system, a main cooling system and a rear cooling system are designed, and a cooling medium of 20-30 DEG C circulates in the pre-cooling system; the main cooling system serves as a core condensation unit and is matched with a low-temperature cooling medium of-10 DEG C to 0 DEG C, shock cooling of steam can be achieved within an extremely short time, a cooling agent of 10 DEG C to 20 DEG C of the post-cooling system is fully mixed with residual steam in a mist form, and secondary condensation is conducted on a trace amount of uncondensed steam. The three-stage cooling system disclosed by the invention forms a full-process condensation system of buffering, shock cooling and fine treatment through temperature gradient control, so that the condensation effect of the distillation tower is optimized, and products in steam are better separated.
Owner:TIANJIN KERMEL CHEM REAGENT

Liquid cooling systems for fuel cells

The present invention provides a liquid cooling system for a fuel cell, wherein the liquid cooling system can detect whether bubbles exist in a cooling pipeline of the fuel cell before the fuel cell is operated, and eliminate the bubbles when bubbles exist in the cooling pipeline.
Owner:WUHAN TROOWIN POWER SYST TECH

Thermal power plant thermotechnical cable temperature detection device

The utility model relates to a thermal power plant thermotechnical cable temperature detection device, which belongs to the technical field of cable detection, and comprises a detection box with an open upper part, the top of the detection box is provided with a box cover for opening or closing the detection box, and two ends of the detection box are respectively provided with a through hole extending upwards to the end part of the upper end of the detection box. A walking mechanism reciprocating between the two ends of the detection box is arranged on the lower portion in the detection box, and an intermittent temperature monitoring assembly is arranged on the walking mechanism and used for intermittently making contact with a cable above and measuring the temperature in the walking process of the walking mechanism. The cable temperature detection device has the advantages that the structural design is reasonable, temperature detection can be carried out on different positions of a cable penetrating through the detection device, the accurate effect during detection can be effectively ensured, the whole detection device does not need to be moved, time and labor are saved in detection operation, normal operation of the cable is not affected, and more convenience is brought to thermal power plant thermotechnical cable temperature detection work.
Owner:XUZHOU CHINA RESOURCES POWER CO LTD +1

Steel plate rolling forming device

The steel plate rolling forming device comprises a base, a bending mechanism, a cutting mechanism and a linkage mechanism, and two first side frames and two second side frames are arranged on the base side by side; the bending mechanism comprises a first pressing roller, a second pressing roller and a driving assembly. The cutting mechanism comprises a mounting frame and a template assembly; the linkage mechanism comprises two linkage assemblies, the two linkage assemblies are arranged on the two sides of the base correspondingly, and each linkage assembly comprises a linkage gear, a rack and a connecting arm. Therefore, rolling, cutting and forming operation of linear and arc-shaped steel plates can be executed, so that the machining efficiency is guaranteed, and additional machining cost does not need to be increased.
Owner:JIANGSU MILLENNIUM HANGXIAO PREFABRICATED BUILDING TECH CO LTD

Chemical looping system coupled with high-capacity thermal power generating unit

The invention discloses a chemical looping system coupled with a high-capacity thermal power generating unit, which comprises an air reactor, the upper part of the air reactor is connected with a first gas-solid separator, the lower part of the first gas-solid separator is connected with a first material returning device, the first material returning device is connected with a fuel reactor, and the fuel reactor is connected with an overflow pipe; the overflow pipe is connected with the lower part of the air reactor; the air reactor and the fuel reactor are filled with oxygen carriers; and the upper part of the fuel reactor is connected with the CO2 purification device. The device has the beneficial effects that high-concentration CO2 can be enriched, and carbon emission of a thermal power generating unit is reduced; waste heat of a chemical chain can be recycled through a unit condensate water system, and coal consumption of the unit is not increased; normal operation of the thermal power generating unit is not affected if the chemical chain is put into operation.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP

Sawtooth cam type belt backstop

ActiveCN224061775UDoes not affect normal functionincrease resistanceConveyorsCamFriction force
The utility model belongs to the technical field of belt conveyors, and particularly relates to a sawtooth cam type belt backstop which is characterized in that the sawtooth cam type belt backstop comprises cams, a wheel shaft and baffle rings, the two ends of the wheel shaft are fixedly connected with a belt conveyor rack, the wheel shaft is connected with more than two cams through keys, the baffle rings are arranged on the two sides of the cams, and the baffle rings are arranged on the wheel shaft. A spring retainer ring is arranged on the wheel shaft on the outer side of the baffle ring; a gap is formed between the key and the cam, and the cam is in a movable state within the range of 15 degrees; after the cam is installed, the distance between the upper edge of the cam and the bottom of the belt is not larger than 1 mm. Compared with the prior art, the device has the advantages that the device and the roller backstop can be used at the same time, normal functions of the roller backstop are not affected, and the device serves as an upgrading scheme for preventing material returning of the belt conveyor, friction force between the backstop and a belt can be further increased, resistance for preventing the belt from reversing is enhanced, smooth backstop is achieved, and the service life of the belt conveyor is prolonged. Accident handling time is reduced, and production efficiency is improved.
Owner:ANGANG GRP REFRACTORY MATERIAL CO

Intelligent sensing caulking sealing structure and runway pavement health state monitoring method

According to the intelligent sensing caulking sealing structure and the runway pavement health state monitoring method provided by the invention, the prefabricated sensing rubber strip with the modulus gradient transition embedding material is arranged in the runway shoulder caulking, so that tight coupling and cooperative deformation between the sensing optical cable and the caulking glue made of a silicone material are realized; the problems of modulus mismatch, interface stripping, optical cable bounce and the like are effectively solved, and stable and high-fidelity acquisition of vibration signals is ensured; according to the monitoring method, the system identification technology of center line excitation and runway shoulder response is utilized, the surface wave propagation model and the regularization reconstruction algorithm are combined, the runway center line vibration state is inversed in a high-precision mode from runway shoulder signals, propagation attenuation and time delay are compensated, the monitored space coverage capacity and signal restoration precision are remarkably improved, and the monitoring precision is improved. The low-influence, wide-coverage and continuous real-time monitoring of the stock runway is realized, and finally a more reliable and efficient technical scheme is provided for runway surface health state evaluation and operation safety guarantee.
Owner:WUHAN UNIV OF TECH

Slurry circulation pulse anti-precipitation device for limestone slurry tank of thermal power plant

The utility model relates to the technical field of mechanical engineering, in particular to a slurry circulation pulse anti-sedimentation device for a limestone slurry tank of a thermal power plant. The utility model discloses a slurry circulation pulse anti-sedimentation device for a limestone slurry tank of a thermal power plant. The slurry circulation pulse anti-sedimentation device comprises a limestone feeding device, an outlet main pipeline electric valve, an outlet main pipeline, a tower-entering branch pipe, a tower-entering branch pipe valve and the limestone slurry tank, the limestone feeding device is connected with the outlet main pipeline, and the outlet main pipeline electric valve is located at the joint of the limestone feeding device and the outlet main pipeline; the limestone slurry tank is connected with the outlet main pipeline through a tower-entering branch pipe, and the tower-entering branch pipe is provided with the tower-entering branch pipe valve. The device can maintain the operation of the tank when the stirring fails, determines the washing time according to the slurry condition, is low in manufacturing cost, simple and convenient to operate, safe and stable, and effectively solves the problem of slurry precipitation.
Owner:ZOUPING BINNENG ENERGY TECH CO LTD +1

High-temperature-resistant butterfly valve

The utility model relates to the technical field of butterfly valves, in particular to a high-temperature-resistant butterfly valve which comprises a butterfly valve body, a connecting pin installed at the top end of the butterfly valve body, an electric actuator installed on the outer side of the connecting pin and an installation base installed on the inner side of the bottom end of the electric actuator, and a cooling ring is arranged on the outer side of the connecting pin. By means of the cooling ring, the sealing ring, the heat conduction plate, the through hole, the heat dissipation plate, the first pagoda connector, the through groove, the sliding groove and the heat conduction assembly, when a high-temperature medium passes through the butterfly valve body, a condensation medium penetrates through the through hole in the heat conduction plate so as to take away heat in the cooling ring, and when an electric actuator is started, a mounting base drives a connecting pin to rotate; at the moment, the heat conduction block rotates along with the connecting pin, the ball rolls on the sliding inner side, heat in the butterfly valve body can be effectively prevented from being transmitted to the electric actuator through the design, the original structure of the device is not changed, and normal operation of the device is not affected.
Owner:HUBEI JINYUAN VALVE MFG CO LTD

A mechanism capable of online cleaning and recycling of carbon black adhering to the walls of carbon black vacuum cleaner pipes.

This utility model relates to the field of carbon black dust recovery technology, specifically a mechanism for online cleaning and recovery of carbon black adhering to the walls of a carbon black dust collection pipeline. To address the problems in existing technologies where cleaning of carbon black requires stopping the machine, is time-consuming and labor-intensive, and can easily cause secondary pollution to the surrounding environment, this invention provides a mechanism for online cleaning and recovery of carbon black adhering to the walls of a carbon black dust collection pipeline. The mechanism includes a collection device for collecting carbon black, a dust collection fan, and a carbon black dust collection pipeline. A pulverizing chamber is coaxially fixed to the bottom end of the pipeline. A pulverizing motor is connected to the bottom end of the pulverizing chamber via a flange. The shaft of the pulverizing motor extends into the pulverizing chamber, and multiple pulverizing blades are circumferentially distributed on the shaft. Multiple compressed air ports are located on the bottom circumferential wall of the pulverizing chamber, and each compressed air port is equipped with a compressed air pipe arranged tangentially to the pulverizing chamber. This structure is simple, low-cost, and highly effective.
Owner:山西安仑化工有限公司