Throttling bridge capable of adjusting size of throttling hole

Abstract

The invention discloses a throttling bridge capable of adjusting the size of a throttling hole. The throttling bridge comprises an air inlet assembly and an air outlet assembly, the valve body assembly is detachably, seamlessly and fixedly connected with the air inlet assembly, and a containing space is formed in the connecting position of the air inlet assembly and the valve body assembly; a through vent hole is formed in the valve body assembly, and the containing space is communicated with the air inlet hole and the vent hole. The valve element assembly is rotatably arranged in the containing space and can separate the air inlet hole from the vent hole; a control hole is formed in the valve element assembly, and along with rotation of the valve element assembly, the size of the communication section between the flow hole and the ventilation hole is changed. The valve element assembly is partially or completely made of magnetic materials, and the valve element assembly can rotate in the containing space under the action of external magnetic force. The size of the cross section of the throttling hole can be adjusted, and therefore the flow of gas or liquid flowing through the throttling hole can be adjusted.

Description

technical field [0001] The invention relates to the field of throttling bridges, in particular to a throttling bridge capable of adjusting the size of throttling holes. Background technique [0002] The throttle bridge is a kind of throttling device. It is installed in the pipeline filled with fluid flowing through the pipeline or connected by the two ends of the pipeline. The fluid stream will form a local contraction at the throttle, so that the flow rate will increase and the static pressure will decrease. , so that a static pressure difference is generated before and after the throttling bridge, and various applications can be realized by using the static pressure difference, such as controlling fluid flow, flow measurement, etc. [0003] The current structure of the throttling bridge is that the size of the internal throttling hole is fixed, so its throttling performance is fixed. Products of different specifications and models usually require different throttling perf...

AI Technical Summary

Problems solved by technology

Products of different specifications and models usually require different throttling performance, so it is necessary to provide throttling bridges of different specifications and models. Throttle bridges of various specifications are likely to cause installation errors in the process of product production. At the same time, throttling bridges of different specifications It will also increase its production cost, such as mold cost, etc.

[0004] At the same time, due to the requirements of use, some products need to adjust their throttling performance, and the throttling device with a fixed orifice size cannot meet the requirements.

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