46results about How to "Prevent pollution flashover accidents" patented technology

A 10kV power distribution circuit insulation tower head is disclosed, which is characterized in that: adopting hydrophobic high-strength insulation bar to be assembled with needle-typed insulator by gold tool and form an insulation tower head entity, or adopting hydrophobic high-strength insulation bar to be assembled with gold tool directly and form an insulation tower head. By using the invention, the insulation level of the power distribution circuit can be greatly improved, the thunder discharge air gap can be obviously enlarged, the lightning stroke and line break accidents can be effectively prevented and the climbing distance can be expanded, further, the structure type is easy to improve self-cleaning ability and the occurrence of pollution flashover can be basically and completely precluded, which is beneficial in charged operation, simple in operation process and improves the operation security.

The invention discloses an online monitoring system and an online monitoring method of a high-voltage insulator filthy state. A leakage current collecting unit transmits collected leakage current data to a data sending module. An induction coil transmits an induced current from a high-voltage power transmission line to a power supply module, and the power supply module supplies power sources to the data sending module and the leakage current collecting unit. The data sending module sends data collected by a current sensor to a wireless data concentrator, and the wireless data concentrator transmits collected data to a background server through a global system for mobile communications (GSM) data public network or a general packet radio service (GPRS) data public network. The online monitoring system and the online monitoring method of the high-voltage insulator filthy state have the advantages of supplying stable and reliable electric energy to a signal collection terminal of the online monitoring system of the high-voltage insulator filthy state through a self-induced power supply device, and bringing possibilities for the system to achieve functions of real-time detection, fault diagnosis, early warning and the like of monitoring the high-voltage insulator filthy state.

The invention relates to an RTV (Room Temperature Vulcanization silicone rubber) hydrophobicity testing device for judging whether RTV hydrophobicity is complete or not. The adopted structure is that the RTV hydrophobicity testing device is provided with a memorizer, a controller, a camera, an information receiver, a judging device and a display; the memorizer stores an HC1-HC7 standard picture; the controller is used for controlling a spraying device to spray; the camera is used for recording or shooting pictures after spraying; the information receiver is used for receiving a hydrophobicity picture extracted after recording or shooting; the judging device is used for comparing the hydrophobicity picture received by the information receiver with the standard picture in the memorizer and judging; and the display is used for carrying out output display on a judging result of the judging device. According to the RTV hydrophobicity testing device disclosed by the invention, the normal and safe operation of a line can not be influenced; the device is small in volume, light in weight and convenient to operate; the anti-fouling performance of an RTV coating can be judged accurately in real time; and a pollution flashover accident is prevented; and the safe and stable operation of electric equipment is guaranteed.

The invention discloses a high-pressure support-column insulator sweeping device integrating sweeping and dust collecting. The high-pressure support-column insulator sweeping device includes a movablebase and an insulation support rod, and the movable base is connected with an earth wire; a hinging fork head is mounted at the top of the insulation support rod, and an arc component is hinged to the hinging fork head through a locking bolt; two arc through holes formed in the same periphery are formed in the end face of the arc component, a pneumatic motor is hoisted in each arc through hole, and sweeping brush heads are mounted at the output shaft ends of the pneumatic motors; an elastic cushion block made of an insulation material is mounted on the inner side wall of the arc component; the sweeping brush heads are arranged inside a dust collection hood; the dust collection hood is mounted along the arc edge of the outer side wall of the arc component. The high-pressure support-columninsulator sweeping device integrating sweeping and dust collecting is convenient to operate, safe, reliable and high in sweeping efficiency, a support-column insulator is swept without outage, dust iscollected during sweeping, therefore, an insulation dust collection effect is effectively prevented during sweeping, and the workload of sweeping is greatly reduced.

The invention discloses a method for monitoring the hydrophobic property of an organic external insulation material in an online manner. The method comprises the following steps: (1) equipping a spraying device, a video recording device, a communication and control device and a data processing device; (2) receiving an action signal and controlling mechanical action; (3) controlling the distance and the angle; (4) spraying atomized clean water and sprinkling the clean water to the organic external insulation material; (5) recording in an image and video manner; (6) transmitting the image and the video to the data processing device; (7) carrying out analog computation on the static contact angle of water drops; (8) analyzing the water drop distributing condition and evaluating the hydrophobic property of the organic external insulation material; and (9) sending an action command. According to the method, the hydrophobic property of the organic external insulation material of running equipment or a power transmission line can be monitored in an online manner, the change condition of the hydrophobic property can be mastered and pollution flashover accidents can be effectively prevented.

The invention discloses a remote control system of a live-line flushing robot of a transformer station and a method of the system. The system comprises a walking control system and a safety control system, the walking control system comprises a wireless reception module, a remote controller, a vehicle-mounted controller and an information collection module, wireless devices are used between the wireless reception module and the vehicle-mounted controller and between the vehicle-mounted controller and the information collection module respectively to establish a WIFI network and realize data interaction among the modules, and the safety control system uses ultrasonic, magnetic-field range finding, water resistance and hydraulic pressure sensors mounted on a holder to realize real-time monitoring for the operation process of the robot. Thus, the water resistance, the hydraulic pressure and the length of a water column can be monitored online in real time, the insulation performance of the robot body and live-line equipment of the transformer station is ensured, and the safety of water flushing is effectively improved.

The invention discloses a transformer substation post insulator cleaning device which comprises a trolley body. A circular base is arranged on a sweeping board of the trolley body through a rotary bearing; a first automatic telescopic rod is vertically arranged on the base; a cross beam is horizontally arranged on the first automatic telescopic rod; a balancing weight block is arranged at the leftend of the cross beam; a cleaning mechanism is in spherical hinge to the right end of the cross beam; a rotation drive mechanism for controlling the base to rotate is arranged on the sweeping board of the trolley body; and a control mechanism for controlling the first automatic telescopic rod, the cleaning mechanism and the rotation drive mechanism is arranged on the sweeping board of the trolleybody. According to the transformer substation post insulator cleaning device provided by the invention, rotating bristles can be utilized for thoroughly cleaning transformer substation post insulators when a cleaning agent is utilized for soaking at the same time, so that a cleaning effect is better.

The invention discloses an improved type 2 slow-release long-acting superhydrophobic anti-pollution flashover coating. The improved type 2 slow-release long-acting superhydrophobic anti-pollution flashover coating is prepared from the following raw materials in parts by weight: 35 to 45 parts of hydroxypropyl-terminated fluorine-containing polysiloxane, 20 to 30 parts of hydrogen-terminated polysiloxane, 55 to 65 parts of silicone rubber 107, 20 to 30 parts of hydrophobic gas phase white black carbon, 3 to 5 parts of nanometer zinc oxide, 2 to 4 parts of ethyl oleate, 4 to 6 parts of diatomite, 1 to 3 parts of ketoxime type crosslinking agent, 5 to 10 parts of dimethyl aminopropyl amine, 1 to 2 parts of silane coupling agent, 3 to 6 parts of magnesium hydroxide, and 165 to 175 parts of organic solvent. The improved type 2 slow-release long-acting superhydrophobic anti-pollution flashover coating has the advantages that the mechanical property is strong, the service life is long and can reach 15 years, the flame-retardant property is good and can reach FV-0 class, the salt mist aging-resistant property is good, the anti-pollution property is excellent, the validity is still realized in the haze pollution weather, the expected anti-pollution flashover effect is realized, and the pollution flashover accident is avoided.

The invention discloses a slow-release type long-acting super-hydrophobic pollution flashover prevention coating. The coating is prepared from the following raw materials in parts by weight: 35-45 parts of terminal hydroxypropyl fluorine-containing polysiloxane, 20-30 parts of terminal hydrogen polysiloxane, 55-65 parts of 107 silicon rubber, 20-30 parts of hydrophobic fumed silica, 3-5 parts of nano zinc oxide, 2-4 parts of oil amino oleate, 4-6 parts of mica powder, 1-3 parts of ketoxime type crosslinking agents, 5-10 parts of dimethyl aminopropyl amine, 1-2 parts of silane coupling agents, 3-6 parts of aluminum hydroxide and 165-175 parts of organic solvents. The slow-release type long-acting super-hydrophobic pollution flashover prevention coating is high in mechanical performance, long in service life which can reach 15 years, high in flame retardancy which can reach FV-0 grade, high in salt fog resistance, high in aging resistance and excellent in stain resistance, and still can exert the effectiveness in weather with haze pollution; the expectant pollution flashover prevention effect can be achieved; the occurrence of pollution flashover accidents is avoided.

The invention discloses a system for controlling a transformer substation live washing robot and a method. The system includes a remote module, an on-board monitoring module and a platform information collection module; wireless equipment is adopted between the remote module and the on-board monitoring module and also between the on-board monitoring module and the platform information collection module in constituting a WIFI network to realize data interaction among the three modules. The system and the method can effectively reduce tedious physical labor of workmen in cleaning, guarantee safety of the workmen, and at the same time prevent pollution flashover incidents to equipment and guarantee safe running of the grid through cleaning the pollution of the equipment.

The invention relates to a composite insulator suspension angle optimization method based on insulator pollution accumulation characteristics, and the method is characterized in that the method comprises the following steps: 1) carrying out the stress analysis of pollutant particles around an insulator; 2) determining the wind speed of the air flow field, the pollutant particle concentration and the change range of the particle size; 3) establishing insulator simulation calculation models under different suspension angles; 4) calculating air flow field distribution around the insulator at different suspension angles; 5) analyzing the change rule of the collision rate of the pollutant particles and the insulators at different suspension angles; and 6) determining the optimal suspension angle of the double-string insulator according to the simulation calculation result in the step 5). According to the method, based on the pollution accumulation characteristics of the insulator, the optimal suspension angle is determined through the pollution accumulation characteristics of the insulators at different suspension angles, and pollution flashover accidents of the insulators are preventedfrom happening in a suspension mode.

The invention discloses a device for detecting a surface dirt morphology of an insulating material in a haze environment. The device comprises a high-speed airflow simulation generation device used for simulating the haze environment under a high-speed airflow, an alternating-current and direct-current pressurization and flashover experiment device used for applying a voltage to an insulation sample, an electric field intensity detection device used for detecting electric field distribution on a surface of the insulating sample in a voltage applying process, and a microscopic amplification device used for observing a microstructure of dirty particles on the surface of the insulating sample. The high-speed airflow simulation generation device is provided with an observation window, and a discharge observation device used for observing a flashover path after the surface of the insulation sample is polluted is arranged outside the observation window. The invention further discloses a method for detecting the surface dirt morphology of the insulating material in the haze environment. The device for detecting the surface dirt morphology of the insulating material in the haze environmentstudies the microstructure of the surface dirt of the insulating material in the high-speed airflow haze environment and surface flashover phenomenon development, and is of great significance to prevention of insulator pollution flashover accidents.

The invention discloses a remote control system for a transformer station water washing robot for aiming at a low-altitude insulator. The remote control system comprises a walking control system and a safety control system. The walking control system comprises a wireless receiving module, a remote control, an on-vehicle controller and an information acquisition module. Wireless equipment is used between the wireless receiving module and the on-vehicle controller, and wireless equipment is used between the on-vehicle controller and the information acquisition module, thereby forming a WIFI network and realizing data interaction among the three modules. The safety control system utilizes real-time control for the operation process of the robot by means of an ultrasonic sensor, a magnetic field ranging sensor, a water resistance ratio sensor and a water pressure sensor which are mounted on a pan/tilt. The remote control system realizes real-time online monitoring for the water resistance, the water pressure and the water column length, thereby ensuring high insulating property of a robot body and live equipment of the transformer station in the water washing process, and effectively improving safety in the water washing process.