精品少妇人妻av免费久久农村,一级片久久,91天堂视频,国产破处

Welcome [Wuxi Yi Jin Machinery Co. Ltd.] official website!
Chinese   |   English   |  Sitemap
News

Position:Home > News >

How to test the quality of centrifugal fans

How to test the quality of centrifugal fans? For buyers, this is a problem that can not be ignored. Here please Wuxi centrifugal fan manufacturers technician to add to you, is on the installation of centrifugal fan construction process.
First, the centrifugal fan quality test
1. Determine the pressure near the fan. The dry bulb temperature and the wet bulb temperature are measured in the inlet air flow path of the fan, and the temperature is measured in the plane. The measured data can be used to determine the airflow density at each of the relevant planes.
2. With the import guide fan fan characteristics, including the guide vane in the fully open position of the operating state. In order to compare the test results with the fan characteristic parameters, the guide vane should be fixed in the fully open position during the test.
3. Record all relevant nameplate data for the centrifugal fan, including the voltage value and the rated load current value. It can also measure the fan speed and the amperage, voltmeter and wattage of the motor.
4. If the fan outlet side of the length of the fan is not enough, it will have additional system resistance. So in order to calculate the system additional resistance value, you need the degree of centrifugal fan outlet area and fan air supply area.

Contact: Mr. Wei 180 6833 7327 / 133 9518 5578 7 ????Tel: 0510-83303276 ????Fax: 0510-83303276

E-mail: 2637472470@qq.com ????Web: ????Add: Luoxian Town, Huishan District, Wuxi City

Copy right ? 2017 Wuxi Yi Jin Machinery Co., Ltd. All Rights Reserved

99久热精品免费观看98| 色欲综合视频天天天综合网站| 夫妻av| 国产中文区五幕区2021| 夫妻露脸| 人妻丝袜中文无码av影音先锋专区| 国产精品99久久久久久猫咪| 亚洲综合AV一区二区三区不卡| 国产午夜福利在线播放| 亚洲精品国产首次亮相| 于都县| 一本一道久久a久久精品蜜桃| 久久精品免费| 91香蕉亚洲精品一区二区| 亚洲午夜精品一区二区三区| 久久人人爽人人爽| 免费v片在线观看| 国产精品一区二区三区在线| 九九热在线精品| 夜色影视| 老师扒开双腿让我爽了一夜视频 | 最近2018中文字幕2019电影| 亚洲综合色视频在线观看| 99久久精品国产一区二区蜜芽| 寻乌县| 象山县| 亚洲国产精品久久久久蜜桃网站 | 女同在线观看| 国产黄片一区| 免费视频久久久| 狠狠婷婷综合久久久久久| 午夜免费电影| 无码专区—va亚洲v天堂麻豆| 少妇无码av无码专区| 欧美亚洲精品中文字幕乱码 | 天堂乱码一二三区| 91精品人妻一区二区三区蜜桃 | 久久精品伊人无码二区蜜桃 | 国产调教| av无码国产在线看免费网站| 久久无码AV中文出轨人妻|