CN201440364U - An on-line oil filter device for on-load tap changer - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种有载分接开关在线滤油装置。三相电机、油泵、进出油接头、滤芯等部件嵌入式插装连接在一个内有整体式油路的精密合金阀块上；溢流阀和真空压力传感器对整个滤油油路形成双重保护结构；瓦斯放气接头、瓦斯放气阀和在线注油阀插装于精密合金阀块上，并与内部油路相通；除杂滤芯和除水滤芯旁都插装有取油样阀和可视窗；嵌入式高性能专用数字控制器包括液晶显示屏，中文菜单，配有常用功能按键和简单直观的人机界面；配有加热温度设定旋钮和散热温度设定旋钮，加热器和散热器。有效减少了密封部位，提高了故障和误操作情况下的保护功能，实现在线放气和注油功能，便于绝缘油的采样和观察，可操作性佳，对温度环境因素的适应能力强。

The utility model discloses an on-line oil filter device for an on-load tap changer. Three-phase motors, oil pumps, oil inlet and outlet joints, filter elements and other components are embedded and connected to a precision alloy valve block with an integral oil circuit; the overflow valve and vacuum pressure sensor form a double protection structure for the entire oil filter circuit. ;The gas release joint, gas release valve and online oil injection valve are inserted on the precision alloy valve block and communicated with the internal oil circuit; the oil sampling valve and visual window are inserted next to the impurity removal filter element and the water removal filter element; Embedded high-performance dedicated digital controller includes LCD display, Chinese menu, equipped with common function keys and simple and intuitive human-machine interface; equipped with heating temperature setting knob and cooling temperature setting knob, heater and radiator. Effectively reduces the number of sealing parts, improves the protection function in the case of failure and misoperation, realizes the function of online deflation and oil injection, facilitates the sampling and observation of insulating oil, has good operability, and has strong adaptability to temperature and environmental factors.

Description

Translated fromChinese

一种有载分接开关在线滤油装置An on-line oil filter device for on-load tap changer

技术领域technical field

本实用新型涉及滤油装置，尤其是涉及一种有载分接开关在线滤油装置。The utility model relates to an oil filter device, in particular to an on-line oil filter device for an on-load tap changer.

背景技术Background technique

变压器有载分接开关因频繁切换产生游离碳及金属微粒等杂质，从而降低开关油的绝缘强度。有载分接开关在线滤油装置主要用于有载分接开关绝缘油的循环过滤，能够在变压器系统正常运行的情况下有效地去除分接开关内油中的游离碳及金属微粒并可降低微量水分，确保油的击穿电压和使用寿命，有效地提高有载分接开关工作的安全性和可靠性，从而减少停电检修次数，延长检修周期。The on-load tap-changer of the transformer produces impurities such as free carbon and metal particles due to frequent switching, thereby reducing the dielectric strength of the switch oil. The on-line oil filter device for on-load tap-changers is mainly used for circulating filtration of insulating oil in on-load tap-changers. It can effectively remove free carbon and metal particles in the oil in the tap-changer under normal operation of the transformer system and reduce A small amount of moisture ensures the breakdown voltage and service life of the oil, effectively improving the safety and reliability of the on-load tap-changer, thereby reducing the number of power outage maintenance and prolonging the maintenance cycle.

现有的有载分接开关在线滤油装置虽能满足上述基本功能，但仍存在装置内部各部件之间大多采用管路连接，管接头多密封困难；装置内部油路出现压力异常情况时压力保护处理能力不足，误操作易造成装置损坏；不具备友好的人机界面，智能化程度较低，可调节性差；绝缘油采样及观察不变；无瓦斯在线放气结构和在线注油结构等缺陷。Although the existing on-line oil filter devices for on-load tap-changers can meet the above basic functions, there are still problems that most of the internal components of the device are connected by pipelines, and it is difficult to seal the pipe joints; when the pressure in the internal oil circuit of the device is abnormal, the pressure Insufficient protection and processing capacity, misuse may easily cause device damage; no friendly human-machine interface, low intelligence, poor adjustability; insulating oil sampling and observation remain unchanged; no defects such as gas online gas release structure and online oil injection structure .

发明内容Contents of the invention

为了克服现有的在线滤油装置的上述一系列缺陷，本实用新型的目的在于提供一种有载分接开关在线滤油装置。In order to overcome the above-mentioned series of defects of the existing on-line oil filter device, the purpose of the utility model is to provide an on-line oil filter device for on-load tap changer.

本实用新型采用的技术方案是：The technical scheme that the utility model adopts is:

所有元件包括三相电机、油泵、进出油接头、瓦斯放气接头、在线注油阀、瓦斯放气阀、真空压力传感器、溢流阀、压差继电器、取油样阀、可视窗、压力表、除水滤芯、除杂滤芯全部嵌入式插装连接在一个固定于不锈钢机箱的数控加工成型精密合金阀块上，精密合金阀块内有整体式油路，机箱侧壁的进出油接头采用不锈钢带法兰的软管直接与变压器的有载分接开关油室的进出油口法兰连接；其特征在于：显示油泵出口实时压力的压力表安装于精密合金阀块的油泵出油口处；溢流阀与油泵并联，插装于精密合金阀块上，油泵的吸油口处设有压力检测的真空压力传感器，溢流阀和真空压力传感器对整个滤油油路构成双重保护结构；瓦斯放气接头和瓦斯放气阀通过精密合金阀块内部油路相通，瓦斯放气阀接于油泵出油口处；在线注油阀插装于精密合金阀块上，内部滤油油路的油泵吸油口处；除杂滤芯和除水滤芯旁都插装有取油样阀和可视窗。All components include three-phase motors, oil pumps, oil inlet and outlet joints, gas release joints, online oil injection valves, gas release valves, vacuum pressure sensors, relief valves, differential pressure relays, oil sampling valves, viewing windows, pressure gauges, The water removal filter element and the impurity removal filter element are all embedded and connected to a CNC machining precision alloy valve block fixed on the stainless steel case. There is an integral oil circuit in the precision alloy valve block, and the oil inlet and outlet joints on the side wall of the case are made of stainless steel belt. The hose of the flange is directly connected to the flange of the oil inlet and outlet of the on-load tap changer oil chamber of the transformer; it is characterized in that: the pressure gauge showing the real-time pressure at the outlet of the oil pump is installed at the oil pump outlet of the precision alloy valve block; The flow valve is connected in parallel with the oil pump and inserted on the precision alloy valve block. A vacuum pressure sensor for pressure detection is installed at the oil suction port of the oil pump. The overflow valve and the vacuum pressure sensor form a double protection structure for the entire oil filter circuit; gas release The joint and the gas release valve are connected through the internal oil circuit of the precision alloy valve block, and the gas release valve is connected to the oil outlet of the oil pump; the online oil injection valve is inserted on the precision alloy valve block, and the oil pump suction port of the internal oil filter circuit is located ; An oil sampling valve and a viewing window are installed next to the impurity removal filter element and the water removal filter element.

所述机箱的上部安装嵌入式高性能专用数字控制器，包括人机界面采用液晶显示屏，中文菜单，同时配有常用功能按键，通过电源输入回路和信号输入回路与滤油油路电气连接，通过电源插座和信号插座与外部电气连接。The upper part of the chassis is equipped with an embedded high-performance dedicated digital controller, including a human-machine interface with a liquid crystal display, a Chinese menu, and common function keys, which are electrically connected to the oil filter circuit through a power input circuit and a signal input circuit. It is electrically connected to the outside through a power socket and a signal socket.

所述数字控制器上安装有分别调节加热器和散热器的工作温度的加热温度设定旋钮和散热温度设定旋钮。The digital controller is equipped with a heating temperature setting knob and a heat dissipation temperature setting knob for respectively adjusting the working temperature of the heater and the radiator.

发明具有的有益效果是：The beneficial effects of the invention are:

整体式油路，整个装置内部没有任何管路连接，有效减少了密封部位，降低泄漏；双重保护，提高了装置在故障和误操作状况下的安全性；有载开关无需拉闸停电，能够在不影响变压器和滤油装置本身正常运行的工作情况下，通过滤油装置直接把分接开关内的瓦斯气体在线放到地面；当有载开关长期工作油位下降时，无需拉闸停电，能够在变压器正常运行的状态下，通过滤油装置本身的注油阀，直接将合格的同型号变压器绝缘油补充注入到有载分接开关，提高了供电的可靠性和设备运行的安全性；油样阀和可视窗便于绝缘油的采样和观察；数字控制器可操作性佳；整个装置对温度环境因素的适应能力强，保证装置在环境恶劣的多种温度下可靠滤油，实现全天候、无人监控值守的工作模式。Integral oil circuit, there is no pipeline connection inside the whole device, which effectively reduces the sealing parts and reduces leakage; double protection improves the safety of the device in the event of failure and misoperation; Without affecting the normal operation of the transformer and the oil filter device itself, the gas in the tap changer can be directly put on the ground through the oil filter device; When the transformer is in normal operation, through the oil injection valve of the oil filter device itself, the qualified transformer insulating oil of the same type is directly injected into the on-load tap changer, which improves the reliability of power supply and the safety of equipment operation; The valve and viewing window are convenient for sampling and observation of insulating oil; the digital controller has good operability; the whole device has strong adaptability to temperature and environmental factors, ensuring that the device can filter oil reliably under various temperatures in harsh environments, and realize all-weather, unmanned Monitor the duty mode of work.

附图说明Description of drawings

图1是本实用新型有载分接开关在线滤油装置的结构图。Fig. 1 is a structural diagram of an on-line oil filter device for an on-load tap changer of the present invention.

图2是本实用新型有载分接开关在线滤油装置的内部油路原理图。Fig. 2 is a schematic diagram of the internal oil circuit of the on-line oil filter device for the on-load tap changer of the present invention.

图3是本实用新型有载分接开关在线滤油装置的数字控制器面板局部放大图。Fig. 3 is a partially enlarged view of the panel of the digital controller of the on-line oil filter device for the on-load tap changer of the present invention.

图中：1.不锈钢机箱，2.电源插座，3.信号插座，4.三相电机，5.进出油接头，6.瓦斯放气接头，7.在线注油阀，8.真空压力传感器，9.瓦斯放气阀，10.油泵，11.空气开关，12.数字控制器，13.加热温度设定旋钮，14.散热温度设定旋钮，15.电源输入回路，16.信号输入回路，17.压力表，18.溢流阀，19.压差继电器，20.取油样阀，21.精密合金阀块，22.可视窗，23.除水滤芯，24.除杂滤芯，25.加热器，26.散热器，27.有载分接开关油室。In the figure: 1. Stainless steel chassis, 2. Power socket, 3. Signal socket, 4. Three-phase motor, 5. Oil inlet and outlet connectors, 6. Gas discharge connector, 7. Online oil filling valve, 8. Vacuum pressure sensor, 9 .gas release valve, 10. oil pump, 11. air switch, 12. digital controller, 13. heating temperature setting knob, 14. cooling temperature setting knob, 15. power input circuit, 16. signal input circuit, 17 .Pressure gauge, 18. Relief valve, 19. Differential pressure relay, 20. Oil sampling valve, 21. Precision alloy valve block, 22. Visual window, 23. Water removal filter element, 24. Impurity removal filter element, 25. Heating 26. Radiator, 27. On-load tap changer oil chamber.

具体实施方式Detailed ways

下面结合附图和实施例对本实用新型作进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.

如图1、图2，本实用新型在线滤油装置采用的整体式插装油路，所有元件包括三相电机4、油泵10、进出油接头5、瓦斯放气接头6、在线注油阀7、瓦斯放气阀9、真空压力传感器8、溢流阀18、压差继电器19、取油样阀20、可视窗22、压力表17、除水滤芯23、除杂滤芯24等部件全部嵌入式插装连接在一个固定于不锈钢机箱1的数控加工成型精密合金阀块21上，精密合金阀块21内有整体式油路，整个装置内部没有任何管道连接，有效减少了密封部位，降低泄漏。在线滤油装置与有载分接开关连接时，利用带法兰软管将滤油装置的进油口与有载分接开关油室27的出油口相连，滤油装置的出油口与有载分接开关油室27的进油口相连。As shown in Figure 1 and Figure 2, the integral plug-in oil circuit adopted by the online oil filter device of the present invention, all components include a three-phase motor 4, anoil pump 10, an oil inlet and outlet joint 5, a gas discharge joint 6, an onlineoil injection valve 7,Gas release valve 9, vacuum pressure sensor 8,overflow valve 18,differential pressure relay 19,oil sampling valve 20,viewing window 22,pressure gauge 17, waterremoval filter element 23, impurityremoval filter element 24, etc. It is installed and connected to a numerically controlled machining-formed precision alloy valve block 21 fixed on the stainless steel chassis 1. There is an integral oil circuit in the precision alloy valve block 21. There is no pipeline connection inside the whole device, which effectively reduces the sealing parts and reduces leakage. When the online oil filter device is connected to the on-load tap-changer, use a hose with a flange to connect the oil inlet of the oil filter device to the oil outlet of theoil chamber 27 of the on-load tap-changer. The oil inlet port of the on-load tapchanger oil chamber 27 is connected.

如图1、图2，压力表17安装于精密合金阀块21上显示实时压力，溢流阀18与油泵并联，插装于精密合金阀块21上，油泵10的吸油口处设有压力检测的真空压力传感器8，溢流阀18和真空压力传感器8对整个滤油油路构成双重保护结构。当出现堵塞等情况出口压力高于溢流阀开启压力时，油通过溢流阀18在内部形成循环；如溢流阀18失效，压力检测限压的真空压力传感器8还能起到保护作用，防止进油阀未打开时启动电机4，损坏油泵10。As shown in Figure 1 and Figure 2, thepressure gauge 17 is installed on the precision alloy valve block 21 to display real-time pressure, therelief valve 18 is connected in parallel with the oil pump, and is inserted on the precision alloy valve block 21, and the oil suction port of theoil pump 10 is equipped with pressure detection The vacuum pressure sensor 8, theoverflow valve 18 and the vacuum pressure sensor 8 form a double protection structure for the entire filter oil circuit. When the outlet pressure is higher than the opening pressure of the relief valve due to clogging, the oil circulates inside therelief valve 18; if therelief valve 18 fails, the vacuum pressure sensor 8 for pressure detection and pressure limitation can also play a protective role. Prevent themotor 4 from starting when the oil inlet valve is not opened, and damage theoil pump 10.

如图1、图2所示，瓦斯放气接头6和瓦斯放气阀9插装于精密合金阀块21上，并通过精密合金阀块21内部相通。瓦斯放气接头6通过带法兰软管直接与变压器的有载分接开关瓦斯继电器的出气口连接，当有载开关在运行过程中产生瓦斯气体，积存在有载分接开关瓦斯继电器内时，可以打开装置内的瓦斯放气阀9将瓦斯气体从装置底部放出，待气体放尽后，把瓦斯放气阀9关闭即可，无需拉闸停电，保证了设备的正常工作，提高了供电的可靠性、安全性和供电质量。As shown in FIG. 1 and FIG. 2 , the gas release joint 6 and thegas release valve 9 are inserted on the precision alloy valve block 21 and communicate with each other through the precision alloy valve block 21 . The gas release joint 6 is directly connected to the gas outlet of the on-load tap-changer gas relay of the transformer through a hose with a flange. , thegas release valve 9 in the device can be opened to release the gas from the bottom of the device. After the gas is exhausted, thegas release valve 9 can be closed. There is no need to switch off the power, which ensures the normal operation of the equipment and improves the power supply. reliability, security and quality of power supply.

如图1、图2所示，当有载开关长期工作油位下降时，无需拉闸停电，能够在变压器正常运行的状态下，通过在线滤油装置本身的在线注油阀7，直接将合格的同型号变压器绝缘油补充注入到有载分接开关，提高了供电的可靠性和设备运行的安全性。具体操作为：首先将在线滤油装置设定为手动运行模式，关闭有载分接开关的出油阀，将连接软管连接在线注油阀7并植入油桶中，打开在线注油阀7和分接开关的出油阀，手动启动在线滤油装置，补充油从油桶经软管流经在线净油装置进入开关油室。补油结束后，关闭在线注油阀7，打开有载分接开关的出油阀，按数字控制器12选择按钮，恢复定时或自动操作。As shown in Figure 1 and Figure 2, when the oil level of the on-load switch has been working for a long time, there is no need to switch off the power and cut off the power. In the state of normal operation of the transformer, the on-lineoil filling valve 7 of the on-line oil filter device itself can directly inject the qualified The same type of transformer insulating oil is added to the on-load tap changer, which improves the reliability of power supply and the safety of equipment operation. The specific operation is as follows: first, set the online oil filter device to the manual operation mode, close the oil outlet valve of the on-load tap changer, connect the connecting hose to the onlineoil filling valve 7 and insert it into the oil barrel, open the onlineoil filling valve 7 and The oil outlet valve of the tap changer manually activates the online oil filter device, and the supplementary oil flows from the oil barrel through the hose through the online oil filter device and enters the switch oil chamber. After oil replenishment, close the onlineoil filling valve 7, open the oil outlet valve of the on-load tap changer, and press the selection button of thedigital controller 12 to resume timing or automatic operation.

如图1、图2所示，除杂滤芯24和除水滤芯23旁都插装有取油样阀20和可视窗22。取油样阀20便于提取滤油油路不同部位的油样；可视窗22便于观察绝缘油的颜色品质。取油样具体操作为：切断电源空气开关11，停止装置的工作，拧开取油样阀20，直接用针筒进行取样，取样结束后拧紧取样阀，拧上取油样阀20，合上电源空气开关11。根据绝缘油采样品质和颜色观察即可决定何时更换除杂滤芯24和除水滤芯23等部件。As shown in Fig. 1 and Fig. 2, anoil sampling valve 20 and aviewing window 22 are inserted beside the impurityremoval filter element 24 and the waterremoval filter element 23. Theoil sampling valve 20 is convenient for taking oil samples from different parts of the oil filter circuit; thevisible window 22 is convenient for observing the color quality of the insulating oil. The specific operation of taking oil samples is: cut off the power supply air switch 11, stop the work of the device, unscrew theoil sampling valve 20, directly use the syringe for sampling, tighten the sampling valve after sampling, screw on theoil sampling valve 20, close the Power air switch 11. According to the sampling quality and color observation of the insulating oil, it can be determined when to replace parts such as the impurity-removingfilter element 24 and the water-removingfilter element 23 .

如图1、图3所示，嵌入式高性能专用数字控制器12安装在不锈钢机箱1的上部，包括简单直观的人机界面：采用液晶显示屏，中文菜单，同时配有简单直观的常用功能按键。通过电源输入回路15和信号输入回路16与滤油油路电气连接，通过电源插座2和信号插座3与外部电气连接。有手动、自动、定时启动、工作时间设定等功能；并具有动作次数记录、维护报警和技术参数显示等多种功能。As shown in Figure 1 and Figure 3, the embedded high-performance dedicateddigital controller 12 is installed on the upper part of the stainless steel case 1, including a simple and intuitive man-machine interface: LCD screen, Chinese menu, and simple and intuitive common functions button. It is electrically connected to the filter oil circuit through the power input circuit 15 and the signal input circuit 16 , and is electrically connected to the outside through the power socket 2 and the signal socket 3 . It has functions such as manual, automatic, timing start, and working time setting; it also has multiple functions such as action frequency recording, maintenance alarm, and technical parameter display.

如图1、图2所示，加热温度设定旋钮13和散热温度设定旋钮14安装于数字控制器12上，分别调节加热器25和散热器26的工作温度。当温度低于设定值时(如适宜温度设置为0-5℃)，加热器25开始工作；当温度超过设定值时(如适宜温度设置为35-40℃)，散热器26开始工作。保证装置在环境恶劣的多种温、湿度环境下可靠滤油，实现全天候、无人监控值守的工作模式。As shown in FIG. 1 and FIG. 2 , the heatingtemperature setting knob 13 and the coolingtemperature setting knob 14 are installed on thedigital controller 12 to adjust the working temperature of the heater 25 and the radiator 26 respectively. When the temperature is lower than the set value (such as the suitable temperature is set to 0-5 ℃), the heater 25 starts to work; when the temperature exceeds the set value (such as the suitable temperature is set to 35-40 ℃), the radiator 26 starts to work . Ensure that the device can filter oil reliably under various temperature and humidity environments with harsh environments, and realize an all-weather, unmanned monitoring and on-duty working mode.

Claims (3)

Translated fromChinese

1.一种有载分接开关在线滤油装置，所有元件包括三相电机(4)、油泵(10)、进出油接头(5)、瓦斯放气接头(6)、在线注油阀(7)、瓦斯放气阀(9)、真空压力传感器(8)、溢流阀(18)、压差继电器(19)、取油样阀(20)、可视窗(22)、压力表(17)、除水滤芯(23)、除杂滤芯(24)全部嵌入式插装连接在一个固定于不锈钢机箱(1)的数控加工成型精密合金阀块(21)上，精密合金阀块(21)内有整体式油路，机箱侧壁的进出油接头(5)采用不锈钢带法兰的软管直接与变压器的有载分接开关油室(27)的进出油口法兰连接；其特征在于：显示油泵出口实时压力的压力表(17)安装于精密合金阀块(21)的油泵出油口处；溢流阀(18)与油泵(10)并联，插装于精密合金阀块(21)上，油泵(10)的吸油口处设有压力检测的真空压力传感器(8)，溢流阀(18)和真空压力传感器(8)对整个滤油油路构成双重保护结构；瓦斯放气接头(6)和瓦斯放气阀(9)通过精密合金阀块(21)内部油路相通，瓦斯放气阀(9)接于油泵出油口处；在线注油阀(7)插装于精密合金阀块(21)上，内部滤油油路的油泵吸油口处；除杂滤芯(24)和除水滤芯(23)旁都插装有取油样阀(20)和可视窗(22)。1. An on-line oil filter device for on-load tap-changers, all components include a three-phase motor (4), an oil pump (10), an oil inlet and outlet joint (5), a gas release joint (6), and an online oil injection valve (7) , gas release valve (9), vacuum pressure sensor (8), relief valve (18), differential pressure relay (19), oil sampling valve (20), viewing window (22), pressure gauge (17), The water removal filter element (23) and the impurity removal filter element (24) are all embedded and plugged in and connected to a numerically controlled processing and forming precision alloy valve block (21) fixed on the stainless steel cabinet (1). There are Integral oil circuit, the oil inlet and outlet joints (5) on the side wall of the case adopt stainless steel hoses with flanges to directly connect with the oil inlet and outlet flanges of the on-load tap changer oil chamber (27) of the transformer; it is characterized in that: The pressure gauge (17) for the real-time pressure at the outlet of the oil pump is installed at the oil pump outlet of the precision alloy valve block (21); the overflow valve (18) is connected in parallel with the oil pump (10) and inserted on the precision alloy valve block (21) , the oil suction port of the oil pump (10) is provided with a vacuum pressure sensor (8) for pressure detection, and the overflow valve (18) and the vacuum pressure sensor (8) form a double protection structure for the entire oil filter oil circuit; the gas release joint ( 6) It communicates with the gas release valve (9) through the internal oil circuit of the precision alloy valve block (21), and the gas release valve (9) is connected to the oil outlet of the oil pump; the online oil injection valve (7) is inserted into the precision alloy valve On the block (21), at the oil pump oil suction port of the internal oil filter oil circuit; the impurity removal filter element (24) and the water removal filter element (23) are all plugged with oil sampling valve (20) and viewing window (22).2.根据权利要求1所述的一种有载分接开关在线滤油装置，其特征在于：所述机箱(1)的上部安装嵌入式高性能专用数字控制器(12)，包括人机界面采用液晶显示屏，中文菜单，同时配有常用功能按键，通过电源输入回路(15)和信号输入回路(16)与滤油油路电气连接，通过电源插座(2)和信号插座(3)与外部电气连接。2. An on-line oil filter device for on-load tap-changers according to claim 1, characterized in that: an embedded high-performance dedicated digital controller (12) is installed on the upper part of the chassis (1), including a man-machine interface It adopts liquid crystal display screen, Chinese menu, and is equipped with common function keys at the same time. It is electrically connected to the oil filter oil circuit through the power input circuit (15) and signal input circuit (16), and connected to the oil filter circuit through the power socket (2) and the signal socket (3). external electrical connections.3.根据权利要求2所述的一种有载分接开关在线滤油装置，其特征在于：所述数字控制器(12)上安装有分别调节加热器(25)和散热器(26)的工作温度的加热温度设定旋钮(13)和散热温度设定旋钮(14)。3. An on-line oil filter device for an on-load tap changer according to claim 2, characterized in that: said digital controller (12) is equipped with devices for separately adjusting the heater (25) and the radiator (26). The heating temperature setting knob (13) and the cooling temperature setting knob (14) of working temperature.

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