本文目录一览:
- 1、高低压水表怎么看
- 2、高压水表的主要功能是什么?
- 3、高压水表和普通水表有什么不一样?
- 4、水表有哪几种类型
- 5、高压水表工作原理是什么?
高低压水表怎么看
水表盘上直接有数字的
首先要把水表上面的盖子打开。
然后你就会看到上面有一个长方形的显示窗口。
再观察上面有m的地方,m前面的数字就是你的用水量了。
后面还有代表精确读数的小指针,注意数字的读法是从左往右。
高压水表的主要功能是什么?
ZGS型高压水表为多流束凹叶轮速度式磁钢传动干式水表,耐压高,密封性能好,结构简单,数字直读,可与不同压力、不同流量的注水系统相配套。
高压水表和普通水表有什么不一样?
高压水表主要用于测量煤矿井下采掘工作面进行煤层注水及喷雾降尘测定时的水量、流量和压力,也可用于其它需要同时测定水量、流量和压力的场所。水表按使用的压力可分为普通水表和高压水表。在中国,普通水表的公称压力一般均为1MPa。高压水表是更大使用压力超过1MPa的各类水表,主要用于流经管道的油田地下注水及其他工业用水的测量。
水表有哪几种类型
水表可按测量原理、计量等级、公称口径、用途、安装方向、温度、压力、形式分为8种类型。
1、按测量原理分:速度式水表、容积式水表。
2、按计量等级分:A级表、B级表、C级表、D级表。量程越大,则计量等级越高。
3、按公称口径分:大口径水表、小口径水表。
4、按用途分:民用水表、工业用水表。
5、按安装方向分:水平安装水表、立式安装水表。
6、按温度分:冷水水表、热水水表。
7、按压力分:普通水表、高压水表。
8、按形式分类:模拟式、数字式、模拟数字组合式。
因为水表在常用流量下工作性能的稳定性和耐用性是更佳的,比较符合设计要求。如果水管考虑未来的通水能力留有余量,则选择水表时可以在口径规格上低一档。如口径为200mm的管道因流量不足,可选用安装口径150mm的水表,等将来流量增大为200mm的管道的正常流量时,再换同口径水表。
高压水表工作原理是什么?
煤层注水高压水表主要用于测量煤矿井下采煤工作面进行煤层注水时的注水煤层中的水量、流量及注水压力,是综合防尘的主要手段,是治措施。该水表解决了我国煤层注水考核困难这一问题,了浅水孔注水的效果。也可以用于测量其它高压条件下(如高压、喷雾)的水量、流量及水压。
煤层注水高压水表主要结构及工作原理
1、煤层注水高压水表主要结构
矿用高压注水水表主要由上壳体、下壳体、叶轮、叶轮盒、承压板,水量指示器及压力指示器等组成,系压力表和高压注水表为一体,携带方便,易操作。
2、煤层注水高压水表工作原理
矿用高压注水水表安装在注水系统管路中。水流入水表后,过滤罩沿叶轮盒下腔切线进入叶轮盒,推动叶轮旋转;水在叶轮中上升进入叶轮盒上腔切线流出;叶轮旋转经其上面的永磁体带动承压板上面的轮转动,轮带动水量指示器中的计数机构记录流经水表的水量。煤层注水的压力直接经测压孔,通过压力指示器指示。
煤层注水高压水表功能特点
(1)能同时测定煤层注水的水量、流量及注水压力;
(2)水量指示器采用数字轮式,直观易读,摆脱了因井下工人不会读数而影响对煤层注水资料的收集;
(3)水表计量按照计量检定规程JJG585-89生产;
(4)外壳采用磁冲击摩擦火花材料;
(5)压力指示器中,设计并安装了的脉冲主力阻力杆,使压力指示器的使用寿命大大,并能够准确地进行读数。
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