国产精品乱子乱xxxx,色与欲影视天天看综合网,国产成+人欧美+综合在线观看,99精品电影一区二区免费看,无码精品人妻一区二区三区影院,色婷婷亚洲一区二区三区,中文幕无线码中文字夫妻,少妇wwwb搡bbb搡bbb,国产综合精品,色综合久久久久综合99

        Blog
        電動(dòng)執(zhí)行器的控制精度問題
        發(fā)布時(shí)間:2020-07-28 13:46:02

        After using the electric actuator for a period of time, you may sometimes find that the control accuracy of the electric actuator is not as precise as it was at the beginning, so we need to find the reason that affects the control accuracy of the electric actuator. Heli's years of experience have summarized some reasons and solutions that affect the control accuracy of electric actuators. Let's talk about the previous one.


        1. The control valve oscillates. First find the vibration source. The vibration induced by the outside should keep the regulating valve away from the vibration source; eliminate or weaken the vibration intensity of the vibration source; use a fulcrum and other methods to reduce the vibration of the control valve if it is appropriate. The oscillation caused by the flow of the medium inside should try to reduce the resistance of the regulating valve. In the adjustment of things that are allowed by experience, a bypass pipe can be added. For the rapid response control system, a logarithmic spool can be used. Butterfly valves try their best to work within the range of 10~70°, avoiding the point of change of the effect of the medium on the valve body.

        電動(dòng)執(zhí)行器

        2. The electric actuator brake does not work. The brake is used to eliminate the influence of the inertia of the rotor and the output shaft and the load reaction torque after the electric actuator is powered off, so that the output shaft stops correctly at the corresponding position. If the brake does not work, it will reduce the control precision of the electric actuator. Because this should do the following.

        (1) Adjust the braking torque according to the load volume;

        (2) The clearance between the brake wheel and the brake disc should be adjusted properly;

        (3) The brake shoe must have a sufficient friction coefficient, and it is forbidden to drip oil (do not exceed the maximum position of the oil mark when filling lubricating oil).


        3. There are backward links in the output of electric actuators. The main backward link exists in the connection part of the output shaft of the angular stroke electric actuator and the adjusting mechanism (butterfly valve, etc.). Because of this, there must be no slack or gaps in the installation of all connecting rods and levers. Try to use a special coupling to replace the link mechanism. The pressure control system of the coke oven gas collector pipe of our factory thinks it is appropriate and uses a special coupling, the effect is satisfactory. When processing the coupling, please pay attention to the installation situation on the spot, and ensure that the output angle of the electric actuator is 0~90° and the valve body 0~90° angle and the valve position feedback signal 4~20mA.


        性欧美大战久久久久久久 | 国产乱子伦一区二区三区| 推油少妇久久99久久99久久| 小鲜肉自慰网站| 俺也来俺也去俺也射| 亚洲成a人片77777kkkk| 亚洲色偷拍另类无码专区| 被女同桌调教成鞋袜奴脚奴| 亚洲成av人影院| 久久久久久成人毛片免费看| 少妇人妻14页_麻花色| 中文字幕亚洲综合久久| 欧美成人秋霞久久aa片| 亚洲精品自拍| 亚洲精品9999久久久久| 亚洲一区二区视频免费| 日韩高清无码一区二区三区| 久久久久国产精品熟女影院| 97精品依人久久久大香线蕉97| 永久黄网站免费视频性色| 麻豆蜜桃69无码专区在线| 亚洲中文字幕无码AV在线| 开心久久婷婷综合中文字幕| 嫩B人妻精品一区二区三区| 亚洲丁香五月激情综合| AV天堂午夜精品一区| 国产AV人人夜夜澡人人爽麻豆| 无码熟妇人妻av在线影片最多| 内射人妻无码色AV麻豆| 无码人妻精品一区二区三区东京热| 日韩精品一区二区午夜成人版| 玖玖资源站亚洲最大的网站| 在线播放亚洲第一字幕| 色婷婷综合久久久久中文| 国产va在线观看免费| 免费观看的av毛片的网站 | 在线亚洲欧美日韩精品专区| 久久ri精品高清一区二区三区| 在线看片国产日韩欧美亚洲| 日本一本免费一二区| 97视频精品全国免费观看|