推荐回答(1个)
、 准备
1、 检测水箱水否足够; 2、 水阀门关置于打状态; 3、
检查仪器否;
二、 测试
1、
所测产品装入进水口并旋紧位按总电源关ON按钮水压0.02MPa电压调至220V电流于32mA;水压0.8-1MPa电压调至额定电压Un(1-20%); 2、
静水压测试:电磁阀关打高压调节阀旋至高处打低压关并低压调节阀旋至所要测试压力值启关置于测试档60s内观察进水阀否漏水; 3、
低压测试:接线插座插入所测进水阀端电磁阀关置于打状态高压调节阀旋至高处打低压关并低压调节阀旋至所要测试压力值逐打第进水阀电源观察进水阀否能启流量表与电流表数据否符合要求第进水阀测试完毕关闭电源同测试第二进水阀类推110全部测试完毕关掉进水阀电源调节低压调节阀进行压力值测试(其压力值测试类推) 4、
高压测试:接低压测试关处于打状态高压调节阀旋至低处打高压关并高压调节阀旋至所要测试压力值逐打第进水阀电源观察进水阀否能启流量表与电流表数据否符合要求第进水阀测试完毕关闭电源同测试第二进水阀类推110全部测试完毕关掉进水阀电源调节高压调节阀进行压力值测试(其压力值测试类推)
三、 注意事项
1、
高压测试首先定要启低压泵并高压调节阀旋至低处否则高压泵烧坏、高压表指针打坏; 2、
进行测试听机内声音应立即停止测试关断总电源报相关部门排除故障合格才能继续进行测试 3、 测试完毕总电源关置于OFF水阀门关置于关闭状态
1.1散热体表面应缩孔、锈蚀、裂纹等缺陷;
1.2平板形散热器金属紧固件(压板、压盖、碟形弹簧)、水冷散热体导电片应加镀层保护;
1.3散热体台面表面粗糙度Ra允许值3.2m;
1.4散热体台面平面度低于9级;
1.5用于湿热带电力半导体器件散热器(包括散热体、紧固件绝缘件)表面应经防护处理其耐潮湿、耐盐雾耐霉菌能力应符合相应热带电力半导体器件标准;
1.6散热器专用紧固件绝缘件应符合GBB446.3(电力半导体器件用散热器绝缘件紧固件》
1.7散热器与电力半导体安装紧固力矩或紧固压力应符合器件产品标准关规定;
1.8平板形散热体台面安装定位销尺寸:直径2.5mm高台面lmmo 2.1冷却水水质应定要求循环水电阻率应低于2.5Ki2 , PH值6}9间;进口水温度高于35℃、水流量48L/min;
2.2用于高电压或较高电压器件必须确保述水质要求或更高水质要求;
2.3水冷散热器工作应特别注意防漏水、防堵塞、防凝露
2.4风冷散热器安装散热器叶片应沿冷却风气流向;进口空气温度高于400C、进口端风速4 - 6mls;
2.5由于风冷散热器具风阻参数特点选用整机散热器应根据负载要求风机能力查散热器热阻、流阻与风速关系曲线综合考虑散热器热阻风阻两参数 市场现量价低质劣质散热器种散热器论散热体材质、加工要求、部件质量等面都与家行业标准规定较差距使用器件寿命整机质量较影响用户选用面加鉴别:
3.1材质(纯度、厚度、加工精度等)制造工艺(铸造产裂纹、缩孔等)坏低劣材质及粗糙缺陷工艺直接引响散热器导热系数;
3.2散热器接触台面表面粗糙度平面度直接影响接触热阻及压降;
3.3散热器用碟型弹簧应保证经24压平自由高度应稳定否则使用段间弹簧能失效导致散热器与管芯接触良 安装散热器需要压力或力矩由于散热体台面直径于管芯直径压力或力矩作用散热体台面必变形再相同直径或更直径管芯装散热器则导致台面与管芯表面间接触状况良能保证良散热效
用户需要重复使用散热器则定要保证散热体台面表面粗糙度、平行度平面度满足要求否则运行极易热损坏器件尤其水冷系列散热器重复使用前定要仔细检查其台面变形情况明显陷现象则应更换
保证良散热条件每管芯应具相应散热器匹配 湿热季节水冷散热器容易现凝露现象加注意极容易引起设备绝缘降引发短路故障数使用环境说需要注意事项防止凝露
5.1湿热季节注意环境温度与冷却水温差于5℃;
5.2停电应关闭闸刀随即停水;启应通水随即合闸合闸操作与断通水操作紧紧相连顺序颠倒
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