Cut-off adjusting and metering valve

Abstract

The invention discloses a cut-off adjusting and metering valve, which overcomes the problems of single function and energy source waste of the existing valve. The cut-off adjusting and metering valve comprises a valve body, a spherical valve core, a hollow valve rod, an impeller and a rotary wing metering meter. The technical main points are that: the valve body is combined by a left valve body and a right valve body; the spherical valve core driven by the hollow valve rod is assembled inside a combined cavity of the left valve body and the right valve body; a limiting lock for controlling the hollow valve rod to rotate and driving the spherical valve core to open and close is arranged on the periphery of the hollow valve rod as to control the closing and opening angles of the spherical valve core; the lower part of a transmission rod sleeved inside the hollow cavity of the hollow valve rod is connected with the impeller; the top end of the transmission rod is connected with a meter core of the rotary wing metering meter; and the impeller drives the transmission rod to rotate and drives the meter core at the top end of the transmission rod to synchronously rotate and meter the flow. The cut-off adjusting and metering valve is reasonable in structural design, can intuitively and effectively adjust heat balance of a pipe network, ensures the metering accuracy, immediately and accurately finds out water loss phenomena such as running, emitting, dropping, leaking and the like of the pipe network, achieves various functions of cutting off, adjusting and metering, and achieves the energy-saving purpose.

Description

technical field [0001] The invention relates to a valve used on a thermal pipeline, in particular to a cut-off regulating metering valve which is used for adjusting the thermal balance of a thermal pipeline network and has functions such as switch, adjustment and metering. Background technique [0002] At present, there are valves of various specifications and models installed on the thermal pipeline. These valves are mainly aimed at opening and closing the fluid. The functions of most of the existing various valves are relatively single, and there is no set cut-off, It is a valve with three functions of regulating and measuring. [0003] It is the key to energy saving to adjust the flow rate according to the heat load on the heat pipe network. However, on a complex and large-scale heat pipe network, valves with imperfect adjustment functions are used for manual adjustment. The basis for adjustment can only be based on experience and the effect. Longer time observation comp...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a cut-off regulating metering valve, which overcomes the problems of single function and waste of energy in the existing valves. Its structural design is reasonable, and it can directly and effectively adjust the heat balance of the pipe network, ensure the accuracy of metering, and find the pipe network in time. Running, popping, dripping, leaking and other water loss phenomena, realize multiple functions integrating cut-off, adjustment and metering, and achieve the purpose of energy saving

Images