53results about How to "Easy to install and modify" patented technology

The present invention relates to a multi-feature fusion-based non-intrusive type household load real-time identification method and device. The method includes the following steps that: voltage and current data at the entrance of a monitored environment are acquired in real time, basic electrical parameters are calculated; an effective load switching event is monitored according to the basic electrical parameters obtained in the first step, voltage and current sampling data acquired before and after the switching event are cached; sequence steady state and transient state features before and after the switching event are extracted according to the cached information in the previous step, the feature vector of a current event is generated; samples in a load feature library are filtered according to obtained event feature vector information, so that a candidate load sample subset is obtained; the matching degree of each of candidate load samples and the feature vector of the current event is calculated sequentially; and an optimal result is selected and is compared with a preset matching degree threshold value, and a load identification result is outputted. With the multi-feature fusion-based non-intrusive type household load real-time identification method and device of the invention adopted, real-time performance and low cost are fully considered with the accuracy of load identification ensured; and a solid foundation can be laid for follow-up practical promotion.

The invention discloses an apparatus for large-scale oil-immersed transformer no-load and on-load comprehensive tests and a method. The apparatus is composed of a test power source part and a measurement system. The test power source part includes an induction regulator, an intermediate transformer, an oil-immersed intensive compensation capacitor bank and a test control system which are successively connected via a circuit. The measurement system includes a precision measurement current transformer, a voltage transformer and a power analyzer. The apparatus can conduct on-site no-load and on-load loss measurement tests on 110-kV and 220-kV voltage class transformers, and can complete measurements of no-load current, no-load loss, no-load harmonic waves, short circuit impedance and load loss of transformers, and can automatically calculate the measurement test results of no-load and load loss.

The invention relates to a noninvasive household load characteristic automatic extraction method and device. The method comprises the following steps that voltage and current are sampled at the electrical entrance of the monitored user household according to the set frequency and precision; a user household load switching operation event is monitored; the voltage and current sampling data before and after the effective switching event are intercepted; the load steady state and transient state characteristics are analyzed; and the load characteristic data are transmitted to the user side to perform information marking according to the specified format. Invasion of the user household is not required so that installation and reconstruction are facilitated. The load characteristic information is automatically extracted so that the effect efficiency can be enhanced and the error caused by manual operation can be avoided.

The invention relates to a vibration targeting control device for a multi-span rotor shaft of a rotary machine, and belongs to the technical field of vibration control. By the adoption of the device, the vibration parameter change of the shaft is monitored in real time, the reason of the fault vibration is analyzed, a proper position is determined, proper damping force is applied at the proper time, and thus the vibration targeting control of the shaft is realized. The device comprises a real-time on-line signal monitoring and analyzing system and an execution system, wherein the real-time on-line signal monitoring and analyzing system comprises an eddy current displacement sensor, a photoelectric sensor, a signal conditioning module, a data collecting card, an analog output module and a computer; the execution system comprises a magnetorheological damper and an adjustable power supply. The device mainly solves the problems that the vibration is greater when the shaft is started and stopped to pass through each critical rotation speed, and the severe vibration is generated by the rubbing during the operation, by the sudden imbalance and the like.

A measuring-distance self-adaptive (within a certain scope) detecting sensor for line breaking of a spinning machine comprises a steel wire ring, a steel collar, a detection probe on the outer side of the steel ring, and a signal processing circuit which is self-adapted to distance changes of the sensor, wherein the steel wire ring is rotated on the steel collar at a high speed in work; the detecting sensor for the line breaking is fixed around the steel ring; the device comprises an ultra-thin sensor coil (with a thickness of less than 0.3 mm), a detection circuit which can sense minor changes of a magnetic field and the signal processing circuit which is self-adapted to the distance changes of the sensor; and cyclic motions of the steel wire ring can be detected. The device has the advantages of a large distance detection scope, high sensitivity, strong disturbance resistance, a small volume, convenient installation, and avoidance of influences on layout of an original working position.

The invention provides a tray-type winding machine and a winding production method. The tray-type winding machine comprises a winding machine single spindle and a bobbin yarn processing device, wherein the winding machine single spindle comprises a tube changing device, a negative pressure box, a compressed air blowing nozzle and an air supply system; and the compressed air blowing nozzle is arranged below a single spindle unwinding station of the tube changing device, and is connected to the air supply system through an air supply pipeline. The tray-type winding machine is characterized in that a negative pressure suction head is arranged below the single spindle unwinding station; an air inlet of the negative pressure suction head is close to an air outlet of the compressed air blowing nozzle; the air suction direction of the air inlet of the negative pressure suction head is opposite to the air blowing direction of the air outlet of the compressed air blowing nozzle; and an air outlet of the negative pressure suction head is connected to the negative pressure box. When a small suction nozzle fails to grasp the head of the bobbin yarn to cause the falling of the head of the bobbin yarn, the head of the bobbin yarn can automatically enter a center hole of the bobbin yarn for secondary threading, or returns to the bobbin yarn processing device for secondary threading, thus, thewasting caused by hard waste winding is avoided, and the maintenance workload is reduced. The tray-type winding machine has a simple structure and low cost and is convenient to install and transform.The single spindle bobbin yarn threading method is simple, is reliable for threading, and has high efficiency.

The invention discloses a screw type single-machine three-stage compression heat pump heating system and a control method. The system is characterized by comprising a single-machine three-stage screwtype compressor, and a refrigerating fluid inlet, a refrigerant outlet, a first air supplementing port, a second air supplement port and an oil return port are formed in the single-machine three-stagescrew rod type compressor. The refrigerant inlet is connected with a gas-liquid separator, and the refrigerant outlet is connected with an oil separator; the first air supplementing port is connectedwith a second economizer, and the second air supplementing port is connected with a first economizer in a cast-in mode; and an oil outlet of the oil separator is connected with an oil cooler, then the oil outlet of the oil separator is sequentially connected with an oil filter, the electromagnetic valve and an oil flow switch, finally the oil outlet of the oil separator is connected with an oil return port of a single-machine three-stage screw type compressor. The problems that an existing air source heat pump exceeds a limit value due to the compression ratio, the water outlet temperature islow, the application environment range is narrow are solved, the technical scheme can be applied to all heating areas in China, a traditional coal-fired boiler can be directly replaced, the installation and modification are convenient, the economic and rapid effects are achieved, the energy is saved, the environment is protected, and the technical scheme is a good heating technical scheme.

The invention discloses a field load testing device for a power transformer. The field load testing device for the power transformer is used for testing the tested transformer and comprises a power supply, a high-voltage switch cabinet, an induction voltage regulator, an intermediate transformer, a compensating capacitor bank, a mutual inductor precision measurement unit and complete testing control system equipment, wherein one side of the high-voltage switch cabinet is connected with the power supply, and the other side of the high-voltage switch cabinet is connected with the induction voltage regulator; the induction voltage regulator, the intermediate transformer, the compensating capacitor bank and the mutual inductor precision measurement unit are sequentially connected through a line. The field load testing device for the power transformer has the functions of computing and controlling an input voltage assembly and a capacity assembly of the compensating capacitor bank, and the requirement on the capacity of a field test power supply is remarkably reduced.

An electric built-in lock for rifle trigger consists of a lock seat installed in rear of its receiver, batteries, a controlling circuit, and an electric actuator with a pushing screw rod and a locking hook. The electric lock makes rifle controlled effectively and safely, can be installed invisibly, unlocked quickly, and used for various conditions with good impact-resistance.

The invention discloses an improved device for an old-fashioned punching machine. The old-fashioned punching machine comprises an operation platform, a lower die is arranged on the operation table, anupper die is arranged above the lower die, the upper die is mounted on a slider, the slider is driven by a driving device to do downward punching motion, conveying devices are arranged on the portions, on the two sides of the lower die, of the operation platform, each conveying device comprises a front bracket, a rear bracket and a plurality of rollers, and each roller comprises a rotating cylinder and a fixed shaft, wherein the rotating cylinder is mounted on the fixed shaft through a plurality of bearings, the two ends of the fixed shaft are mounted on the front bracket and the rear bracketcorrespondingly, and the gap between the rollers in one conveying device is adjustable. By means of the improved device, the working efficiency of the old-fashioned punching machine is effectively improved, the utilization rate of a plate is improved, meanwhile, the safety of the punching machine can be improved, the advantages of being simple in structure, strong in applicability, reliable in work, high in degree of automation, high in practicability and the like are achieved, double guarantees of the production efficiency and the personal safety are achieved, and the service life of the old-fashioned punching machine is prolonged.

The invention discloses an electric bicycle identification blocking early warning system for an elevator. The electric bicycle identification blocking early warning system comprises a control box connected with a power supply, a photoelectric switch connected with the power supply, a plurality of pressure sensors, a magnetic field sensor and a microwave transmitter, and the photoelectric switch, the pressure sensors, the magnetic field sensor and the microwave transmitter are electrically connected with the control box. From the structure, by utilizing the characteristic that an infrared receiver is prone to being interfered by radio frequency radiation signals such as microwaves and then loses efficacy, when an electric bicycle goes in and out of the elevator, the electric bicycle identification blocking early warning system for the elevator directly interferes the infrared receiver arranged on the elevator through the microwave transmitter to make an elevator door be kept in an opened state after simultaneously receiving a pressure signal of the electric bicycle and a magnetic field signal of a driving motor of the electric bicycle.

The invention discloses a refrigeration system for cooling the outdoor intelligent box of an intelligent transformer station. The refrigeration system comprises an air compressor device, an air storage device, a purification separation device, an air cooling device and a refrigeration control device. The refrigeration system completely changes the history that the outdoor intelligent box of the intelligent transformer station has no reliable cooling facilities, effective cools the outdoor intelligent box, eliminates potential safety hazard, and ensures the normal operation of the system. The introduction of compressed air enables the intelligent box to have positive pressure, prevents external humid air or dust from entering, and ensures dry and clean air in the intelligent box. The refrigeration system uses a vortex tube for cooling, does not use electricity or any chemical substances, has no additional cooling device, and is highly efficient in energy use, economical and practical, and more suitable for a case where a number of the intelligent transformer station outdoor intelligent boxes are provided. A high-power air compressor is used for concentrated air supply and high-pressure air pipelines are laid along a cable trench to the intelligent box via various air supply branches. The refrigeration system is innovative in idea, simple and practical in structure, easy to operate and maintain, achieves automatic control, and is stable and reliable in performance and suitable for promotion.

Disclosed is a sectioned combination-type wind-deflection-preventing composite insulating inhaul cable including high-voltage-side hardware fittings, an upper rod body, a lower rod body and a middle pole. The upper end of the upper rod body and the lower end of the lower rod body are each connected with a high-voltage-side hardware fitting. The middle pole is connected between the upper rod body and the lower rod body. Each of the upper rod body and the lower rod body includes a rod core and an umbrella skirt at the outer side of the rod core. The rod cores are epoxy-resin glass-fiber-reinforced-plastic pulling rods. The umbrella skirts are silicone-rubber composite umbrella skirts. The cable is capable of preventing effectively deflection of wires, relative to a pole tower under the action of strong wind and preventing wind-deflection trip of lines so that safe operation level of power transmission lines is improved.

A vehicle lamplight mutual control system comprises an acousto-optic transmitting and receiving device, an external light sensor, a total controller and a lamplight controller. The acousto-optic transmitting and receiving device is provided with a front ultrasonic wave emitter, a front ultrasonic wave receiver, a front light sensor, a rear ultrasonic wave emitter, a rear ultrasonic wave receiver, a rear light sensor and a vacuum cavity shell. The acousto-optic transmitting and receiving device is connected with the total controller and is controlled by the total controller. The external light sensor is connected with the total controller and is controlled by the total controller. The lamplight controller is connected with the total controller and is connected by the total controller. Automatic operation of vehicle lamplight use is achieved through mutual control, and bad habits and faults of manual operation are prevented. An ultrasonic wave is used and taken as an information transmission medium, and directivity of signal transmission is ensured. The acousto-optic transmitting and receiving device is provided with the vacuum cavity shell, and guarantees emitting and receiving accuracy of an acousto-optic signal. The vehicle lamplight mutual control system is low in cost, convenient to install and reform, and easy to popularize.

The invention discloses a steel separating system for continuous casting, which comprises a synchronous shaft, a hydraulic cylinder, a guide rail frame and a billet supporting trolley, the synchronous shaft is parallel to the longitudinal direction of the billet, the hydraulic cylinder and the guide rail frame are perpendicular to the longitudinal direction of the billet and along the longitudinal direction of the billet Distributed in the remaining space of the rail beam of the pusher, the 1# hot-feeding roller table and the claws of the steel hooking machine, the supporting blank trolley fits on the guide rail of the guide rail frame through the wheels without falling out. For the lifting rod of the billet, all the hydraulic cylinders drive all the billet trolleys to move synchronously and reciprocatingly through the synchronous shaft. After the rod reaches the stop position of the pusher track, it can rise to a high position to hold a single slab and keep it at a high position. After reaching the position of the 1# hot delivery roller, it can descend to a low position to put down a single slab and keep it at a low position. This can transport a single casting slab from the stop position of the pusher rail to the 1# hot delivery roller position, avoiding the impact caused by the hook slab, and is convenient for installation and modification.

A windage yaw preventing rigid insulating inhaul cable of a high-voltage power transmission line comprises a bar body. The two ends of the bar body are connected with hardware fittings respectively. The bar body comprises a bar core arranged inside and an umbrella skirt located outside the bar core, wherein the umbrella skirt is made of silicone rubber composite materials, and the bar core is a pull bar made of epoxy resin glass fibers. The windage yaw preventing rigid insulating inhaul cable of the high-voltage power transmission line can effectively prevent a wire from deflecting from a pole and tower under the action of heavy wind, avoid trip caused by windage yaw of the line and improve the safe operation level of the power transmission line.

The invention relates to a counterweight post-positioned elevator without a machine room, which comprises a well channel, a cage, a diversion sheave, a tractor and a counterweight diversion sheave, wherein the cage is arranged in the well channel; two spandrel girders are arranged in the well channel; a counterweight rope head plate is arranged on one side of one of the spandrel girders; two guiding wheels are arranged on the other spandrel girder; an axle bottom wheel is arranged at the bottom of the cage; one end of a steel wire rope is fixedly connected with the counterweight rope head plate; the steel wire rope downward passes by the axle bottom wheel, then upward passes by the two guiding wheels, downward extends, and then is matched with the diversion sheave, the tractor and the counterweight diversion sheave, so as to fix the tail end of the steel wire rope on the spandrel girders; and a counterweight block is arranged on the steel wire rope. The counterweight post-positioned elevator without the machine room is suitable for transforming the elevator with the machine room into the elevator without the machine room.

The invention belongs to the technical field of building construction and particularly relates to a branch pipe type under-construction deep pit building anti-ponding system. The system comprises pipeburying pits which are disposed around the edge of a building deep pit; water collecting pipes are buried in the pipe burying pits; a water guiding pipe is connected to the water collecting pipe on at least one side, and the other ends of the water guiding pipes extend into a deep well pipe; a deep well pump is disposed in the deep well pipe; a water outlet of the deep well pump is connected witha draining pipe; the other end of the draining pipe extends into a water storing pool; water seepage pipes are connected to the pipe bodies of the water collecting pipes; water seepage holes which are distributed at intervals in the pipe length direction of the water seepage pipes are formed in the water seepage pipes; and water are collected in the water collecting pipes through the water seepage pipes, flow into the deep well pipe through the water guiding pipes and are pumped into the water storing pool under the action of the deep well pump. By means of the anti-ponding system, the effectthat no water is seeped into the portion above the bottom plane of a building foundation so that the dry state can be kept is guaranteed, the defect that in the prior art, ponding occurs into an under-construction building without an anti-ponding system is overcome, and the purpose that ponding water is rapidly and effectively pumped out in time is achieved.

The invention provides a pile pressing-in machine. The pile pressing-in machine comprises a pile pressing-in machine body, a fixed platform, a beam, an auxiliary beam, a primary beam, a power head, a holder, a vertical type drill pipe box, a mechanical hand and anti-fall equipment, wherein the fixed platform is fixed to the pile pressing-in machine body; the beam is fixed to the fixed platform; the auxiliary beam is fixed to the beam; the primary beam is arranged on the auxiliary beam in a sliding manner; the power head is arranged on the primary beam in the sliding manner; the holder is fixed to the bottom of the primary beam; the vertical type drill pipe box and the mechanical hand are integrally designed, and are fixed to the primary beam; and the anti-fall equipment is connected to the bottom of the holder in a floating manner. The pile pressing-in machine has the advantages of being simple in structure and delicate in design, improving the efficiency, saving time, automatically loading a drill pipe, preventing the power head from gliding, preventing the drill pipe from dropping from above, and the like.

A lamp with perception and execution functions mainly comprises a lamp lighting unit, a management local area network, a control module and a communication module, wherein the control module and the communication module are arranged in the lamp; the management local area network comprises a perception functional unit and an action execution functional unit; a control panel is arranged on the surface of the lamp; the control module is connected with the management local area network and the control panel, as well as a cloud server and a mobile end, which are arranged outside, through the communication module. According to the lamp provided by the invention, the lamp is used as a carrier of the perception and execution factions, and is a complex having not only a first lighting function but also functions of related perception, communication and execution hardware; the lamp has multiple purposes, does not need real-time monitoring and adjusting by a user, and has the advantages of being convenient to mount and reform, high in integrated degree, and high in management efficiency.

The invention provides a method for improving insulation recovery performance of a spark gap for series compensation. The method comprises the following steps: step 1, mounting an instantaneous ventilating device on a series compensation device; and step 2, acquiring alternating current of the spark gap of the series compensation device by using the instantaneous ventilating device, supplying air to the spark gap if the alternating current is acquired, and entering a standby state if the alternating current is not acquired. Compared with the prior art, the method for improving the insulation recovery performance of the spark gap for series compensation does not change a body structure of an existing spark gap for a series compensation device, is convenient to mount and modify and good in feasibility; and safe and stable running of the existing spark gap for the series compensation device is not affected, and the device is simple and convenient in design and high in reliability.

The invention relates to a rapid cleaning and maintaining mechanism for a blanket cylinder of an offset press, the rapid cleaning and maintaining mechanism is used for being installed on an offset press to clean and maintain the blanket cylinder. The rapid cleaning and maintaining mechanism comprises a rotating bracket with a herringbone cross section, the bracket has a rotating shaft, a washing device mounting plate is arranged around the rotating shaft on the bracket, a cleaning agent washing device mounting plate and a reducing agent smearing device mounting plate, the washing device mounting plate, the cleaning agent washing device mounting plate and the reducing agent smearing device mounting plate are arranged on the support around the rotating shaft, the washing device comprises a first spray head set and a first suction head roller, and the cleaning agent washing device comprises a second spray head set and a second suction head roller, each of the first spray head set and each of the second spray head set all comprises a plurality of nozzles which are uniformly arranged along the axial direction of the bracket; the rapid cleaning and maintaining mechanism for the offset press blanket cylinder is good in cleaning effect, small in damage to a blanket, high in cleaning efficiency, compact in structure, small in size, convenient to transform the offset press, capable of conducting water washing and organic solvent washing respectively, capable of automatically smearing a blanket reducing agent and good in application prospect.

The invention relates to a catalyst regeneration system suitable for hydrogenation reaction for preparing ethylene glycol from synthesis gas. The catalyst regeneration system comprises a carbonylation unit and a hydrogenation unit, wherein the hydrogenation unit comprises a hydrogenation recycle compressor, a hydrogenation heater, a hydrogenation reactor, a hydrogenation cooler and a hydrogenation separator which are sequentially connected through pipelines to form a closed-loop process system; the catalyst regeneration system also comprises a regeneration tank; inlets of the regeneration tank are respectively connected with the dimethyl oxalate discharging end of the carbonylation unit through a first valve and connected with the methanol discharging end of the carbonylation unit through a second valve; an outlet of the regeneration tank is connected with an inlet of the hydrogenation heater through a pressurizing pump. The catalyst regeneration system has the advantages that the great change on the existing process production line is not needed; the installation and the modification are convenient; the activity of hydrogenation reaction catalysts can be effectively improved; the service life of the catalysts is prolonged; the cost for frequently replacing the catalysts after the catalyst deactivation is reduced; the production efficiency is improved.

The invention discloses a device for measuring the axle distance of a motor vehicle based on a laser range finder and infrared photoelectricity. The device comprises a mounting frame rod, a protectiveshell and a base plate. The mounting frame rod is L-shaped; the protective shell is fixedly welded at the top of the mounting frame rod; the base plate is fixedly welded at the bottom of the mountingframe rod; and a bottom fixing mechanism is arranged under the base plate. The beneficial effects are that: a laser distance measuring sensor and the like are arranged in the detector shell, and elements of the detector shell can be matched with an external red light photoelectric switch for detection, so that all-automatic measurement can be carried out, the detection data is not influenced by artificial subjective factors, and the detection result is objective; a dynamic measurement mode is adopted in the detection process, parking is not needed, and the detection speed is high; and the laser distance measuring sensor is placed in front of a detection lane, the requirement is consistent with that of a popular motor vehicle overall dimension automatic measuring instrument on the currentmarket, one sensor can be shared, installation and transformation are convenient, and cost is low.

The invention provides equipment for guiding parking. The equipment comprises an upper layer car-carrying board, and a ground layer car-carrying board or a ground parking space without the ground layer car-carrying board. The upper layer car-carrying board is installed on an upper layer parking space of three-dimensional parking equipment, and the ground layer car-carrying board is installed on aground parking space of the three-dimensional parking equipment. The equipment further comprises a plurality of guiding columns, and the multiple guiding columns are installed on the on the positions,without affecting car traffic and opening and closing of car doors, of the edges of the upper layer car-carrying board, and the ground layer car-carrying board or the ground parking space edge without the ground layer car-carrying board. The equipment has the beneficial effects that the parking experience feeling of drivers is improved, the parking and car-picking speed is improved, the structureis simple and reasonable, the cost is low, the applicability is wide, the safe reliability is high, installation and transformation are convenient, mass popularization is achieved, the equipment is widely used for newly built garages and transforming and improving stock garages, so that unused built-up stock garages are avoided, and the problem of difficult social parking is greatly solved.

The present invention relates to a multi-feature fusion-based non-intrusive type household load real-time identification method and device. The method includes the following steps that: voltage and current data at the entrance of a monitored environment are acquired in real time, basic electrical parameters are calculated; an effective load switching event is monitored according to the basic electrical parameters obtained in the first step, voltage and current sampling data acquired before and after the switching event are cached; sequence steady state and transient state features before and after the switching event are extracted according to the cached information in the previous step, the feature vector of a current event is generated; samples in a load feature library are filtered according to obtained event feature vector information, so that a candidate load sample subset is obtained; the matching degree of each of candidate load samples and the feature vector of the current event is calculated sequentially; and an optimal result is selected and is compared with a preset matching degree threshold value, and a load identification result is outputted. With the multi-feature fusion-based non-intrusive type household load real-time identification method and device of the invention adopted, real-time performance and low cost are fully considered with the accuracy of load identification ensured; and a solid foundation can be laid for follow-up practical promotion.

The invention provides an automation reforming method for a hand-operated reversing valve. The structure of the hand-operated reversing valve is not changed, a handle of the hand-operated reversing valve is disassembled from a hydraulic valve body, a manual-automatic change-over insertion piece is installed between the handle and the hydraulic valve body, the manual-automatic change-over insertion piece is in butt joint with the handle of the hand-operated reversing valve through a change-over plate and is connected with the hydraulic valve body of the hand-operated reversing valve through a liquid distributing disc for control, and a driving valve body is arranged between the change-over plate and the liquid distributing disc. According to the automation reforming method for the hand-operated reversing valve, based on the original hand-operated reversing valve of a hydraulic support, the hand-operated reversing valve is subjected to automation reforming, cost is saved, the production effect can be improved, and potential safety hazards can be avoided; the automation reforming method has the advantages that the structure is simple, and installing and reforming are convenient.