发明名称 |
Differential-pressure flow meter and flow-rate controller |
摘要 |
A differential-pressure flow meter is capable of easily eliminating adhesion to an orifice of an extraneous material. The differential-pressure flow meter includes: a pair of pressure sensors provided on a straight pipe part of a main fluid channel; an orifice unit interposed between the pair of pressure sensors; a columnar orifice body provided on the main fluid channel to be detachable in a direction orthogonal to a flow direction of a fluid in the main fluid channel; and an orifice hole penetrating the orifice body in the flow direction of the fluid, wherein the orifice body is rotatable at a prescribed installation position to reverse an upstream side and a downstream side with respect to the orifice hole, and flow rate measurement is performed by converting into a flow rate a difference in pressure that is obtained from two pressure values sensed respectively by the pair of pressure sensors.
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申请公布号 |
US8006572(B2) |
申请公布日期 |
2011.08.30 |
申请号 |
US20090489801 |
申请日期 |
2009.06.23 |
申请人 |
SURPASS INDUSTRY CO., LTD. |
发明人 |
IGARASHI HIROKI |
分类号 |
G01F1/42;F16K31/12;G01F1/37 |
主分类号 |
G01F1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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