Thermal type V-cone flowmeter convenient to assemble

Abstract

The invention discloses a thermal V-cone flowmeter convenient to assemble, which comprises a first measuring tube, a second measuring tube is arranged on the side of the first measuring tube, a first flange plate is fixedly mounted at one end, close to the second measuring tube, of the first measuring tube, and a second flange plate is fixedly mounted at one end, close to the first measuring tube, of the second measuring tube. According to the thermal type V-cone flowmeter convenient to assemble, the first measuring pipe and the second measuring pipe are arranged and fixed together through the first flange plate and the second flange plate, one end of the arc-shaped pressure guiding pipe connected with one end of the V-cone is clamped between the first flange plate and the second flange plate, the other end of the V-cone is connected with the connecting sleeve through a positioning hole, and the assembling convenience of the V-cone is improved; a U-shaped pipe is arranged at the lower end of the second measuring pipe, the two ends of an opening of the U-shaped pipe are located on the front side and the rear side of the V-shaped cone respectively, the control valve adjusts the size of the opening of the U-shaped pipe, part of water flow flows into the other end of the V-shaped cone through the U-shaped pipe, and therefore the purpose of adjusting the water pressure is achieved, and the measuring precision is improved.

Description

technical field [0001] The invention relates to the technical field of V-cone flowmeters, in particular to a thermal V-cone flowmeter that is easy to assemble. Background technique [0002] V-cone flowmeter is a flow measuring instrument, mainly used for flow measurement of liquid, gas and steam. It uses the throttling effect produced by V-cone in the flow field to measure flow by detecting the pressure difference between upstream and downstream. It is different from ordinary Compared with the throttling parts, it changes the throttling layout, from the center hole throttling to the annular throttling. [0003] Nowadays, the measuring tube of most thermal V-cone flowmeters adopts an integrated structure, and the internal V-cone is welded in the measuring tube. The replacement of the V-cone is very troublesome, and it is not easy to assemble. At the same time, it does not have the function of adjusting the water pressure. . Contents of the invention [0004] The object of...

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Problems solved by technology

[0004] The object of the present invention is to provide a thermal V-cone flowmeter that is easy to assemble, to solve the above-mentioned background technology. The measuring tube of most thermal V-cone flowmeters adopts an integrated structure, and the internal V-cone is welded in the measuring tube. , the replacement of the V cone is very troublesome, it is not easy to assemble, and there is no function of adjusting the water pressure inside.

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