Novel metering ball valve

Abstract

The invention discloses a novel metering ball valve. A valve core is formed in the inner cavity of the valve body, the bottom of a valve rod is fixedly connected with the top of the valve core, the top of the valve rod penetrates through the valve body to be fixedly connected with the driving mechanism, the driving mechanism drives the valve core for having synchronous rotation through a valve rod, the centre of the bottom of the valve core is provided with a support shaft, which is fixed in axial direction, the support shaft is mounted in the valve body; the centre of the valve core is opened with a horizontal through hole and two sides are connected with the inlet and outlet of the valve body; a fluid flow measuring mechanism used for checking fluid flow is arranged in the valve core, the bottom of the guide rod is connected with the fluid flow measuring mechanism, the top of the guide rod penetrates through the valve core and the valve rod for extending outwards, a flow display device is formed above the top of the guide rod. The fluid flow measuring mechanism is mounted in the ball valve for having good rectification effect for the small flow fluid, the fluid value can be measured, the mounting precision error for separately mounting the valve and the flowmeter can be effectively reduced, the production cost is saved and the functional diversity of the ball valve is raised.

Description

technical field [0001] The invention relates to a ball valve, in particular to a novel metering ball valve, which can measure the fluid flow passing through the valve core. Background technique [0002] The ball valve is not only simple in structure and good in sealing performance, but also has the advantages of small size, light weight, less material consumption, small installation size, small driving torque, easy operation, and easy quick opening and closing within a certain nominal size range. One of the fastest growing valve varieties in the past ten years. [0003] The use of ball valves is very extensive, and the variety and quantity of use are still expanding, and they are developing in the direction of high temperature, high pressure, large diameter, high sealing, long life, excellent adjustment performance, and one valve with multiple functions. Its functional diversity has become an important indicator to show the technical level of the national valve industry, an...

AI Technical Summary

Problems solved by technology

[0004] At present, most ball valves are only used in fluid pipelines to cut off, stop and change the flow direction of fluid. However, with the development of the valve industry, the function of ball valves is becoming more and more difficult to meet the needs of the market.

Most of the valves and flowmeters in the pipeline are installed separately. For the production enterprises, it increases the manufacturing cost, and it is difficult to form a strong advantage in the competition between enterprises; for the users, it not only increases the purchase cost, It also increases the installation accuracy error, and the valve cannot be adjusted in real time according to the fluid flow

With the development of the petrochemical industry, there are tens of thousands of ball valves and flowmeters in the pipeline. The large number of ball valves and flowmeters increases the cost on the one hand, and increases the installation accuracy error on the other hand.

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