涡街流量计的安装主要从两个方面考虑，第一是安装点的选择、第二则是是否安装正确。若是这两点有失误或者错误，轻则影响测量精度，重则损坏流量计影响寿命。那么涡街流量计在直管段安装有哪些要求呢?下面贝特小编就来给大家讲解一下!

The installation of vortex flowmeter is mainly considered from two aspects, the first is the selection of the installation point, the second is whether the installation is correct. If there are errors or errors in these two points, the measurement accuracy will be affected, and the flowmeter will be damaged and the service life will be affected. So what are the requirements of vortex flowmeter installation in the straight pipe section? Let's explain it to you!

安装直管段要求规范

Specification for installation of straight pipe section

1.安装点上的上下游直管段一定的要求,否则会影响测量精度。

1. There are certain requirements for the upstream and downstream straight pipe sections on the installation point, otherwise the measurement accuracy will be affected.

2.安装点上的上游有渐缩管,涡街流量计上游应有不小于15D(D为管道直径)的等径直管段,下游应有不小于5D的等径直管段。

2. The upstream of the installation point has a tapered pipe, the upstream of the vortex flowmeter should have equal diameter straight pipe section of no less than 15d (D is the pipe diameter), and the downstream should be no less than 5D.

3.安装点上的上游有渐扩管,涡街流量计上游应有不小于18D(D为管道直径)的等径直管段,下游应有不小于5D的等径直管段。

3. There is a diffuser upstream of the installation point. The upstream of the vortex flowmeter should have an equal diameter straight pipe section no less than 18D (D is the pipe diameter), and the downstream should be no less than 5D.

4.安装点上游有90°弯头或下行接头,涡街流量计上游应有不小于20D的等径直管段,下游应有不小于5D的等径直管段。

The upstream and downstream pipe with straight diameter not less than 5D should be installed with straight pipe section not less than 5D.

5.安装点上游在同一平面上有90°弯头,涡街流量计上游应有不小于25D的等径直管段,下游应有不小于5D的等径直管段。

5. There are 90 ° elbows on the same plane upstream of the installation point. The upstream of vortex flowmeter should have no less than 25d equal diameter straight pipe section, and the downstream should have no less than 5D equal diameter straight pipe section.

6.流量调节阀或压力调节阀尽量安装在流量计下游5D以远处,若必须安装在流量计的上游,流量计上游应有不小于25D的等径直管段,下游应有不小于5D的等径直管段。

6. The flow regulating valve or pressure regulating valve shall be installed at the distance of 5D downstream of the flowmeter as far as possible. If it must be installed at the upstream of the flowmeter, there shall be no less than 25d equal diameter straight pipe section in the upstream of the flowmeter, and the equal diameter straight pipe section not less than 5D in the downstream.

7.流量计上游若有活塞式或柱塞式泵,活塞式或罗茨式风机、压缩机。涡街流量计上游应有不小于25D的等径直管段,下游应有不小于5D的等径直管段。

7. If there are piston type or plunger type pump, piston type or roots type fan and compressor at upstream of flowmeter. There should be no less than 25d equal diameter straight pipe section upstream of vortex flowmeter, and no less than 5D equal diameter straight pipe section downstream.