Flow regulating valve

Abstract

A flow regulating valve is characterized by comprising a valve body, a flow regulating plate, a bearing, a lower cover, an O-shaped seal ring, a sealing gasket and an electric actuator. The valve body is provided with a water inlet and a water outlet in the horizontal direction. The flow regulating plate is arranged in the valve body. A rotating shaft at the upper end of the flow regulating plate is sleeved with the O-shaped seal ring to be in rotating fit with a shaft hole of the valve body. The lower end of the flow regulating plate is in rotating fit with the bearing arranged on the lower cover. The lower cover is fixedly connected with the valve body through the sealing gasket. The rotating shaft at the upper end of the flow regulating plate is fixedly connected with the electric actuator. The flow regulating valve has the advantages that the diameter is the same, flow is high, and pressure loss is low; the flow regulating plate and the rotating shaft are of an integrated structure, so that the usage is reliable; since a gap between the flow regulating plate and the valve body can be set at will, the flow regulating valve can maintain certain discharged flow in a closed state, and a pipeline is prevented from being frozen; due to the fact that the gap exists between the flow regulating plate and the valve body, the situation that the valve body is rusted and flow regulation cannot be conducted can be prevented.

Description

technical field [0001] The invention relates to the technical field of valves, and relates to a flow regulating device used in the heating field. Background technique [0002] In China, the heating metering reform is the last field that does not charge by metering after water, electricity and gas are charged by metering. With the advancement of national energy conservation and emission reduction work, the installation of heat metering products is increasing. In order to achieve energy saving and emission reduction, after installing the heat metering device, a device that can be used for flow adjustment must be installed, so that the indoor temperature can be adjusted according to your own needs in the future to achieve the purpose of energy saving. At present, the supporting heat metering device is mainly used. There are two kinds of valves, one is electric cut-off valve and the other is electric ball valve. These two valves have fatal defects in actual use. Electric cut-off...

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Problems solved by technology

[0002] In China, the heating metering reform is the last field that does not charge by metering after water, electricity and gas are charged by metering. With the advancement of national energy conservation and emission reduction work, the installation of heat metering products is increasing. In order to achieve energy saving and emission reduction, after installing the heat metering device, a device that can be used for flow adjustment must be installed, so that the indoor temperature can be adjusted according to your own needs in the future to achieve the purpose of energy saving. At present, the supporting heat metering device is mainly used. There are two kinds of valves, one is electric cut-off valve and the other is electric ball valve. These two valves have fatal defects in actual use. Electric cut-off valve has small opening, large pressure loss and easy to block; The ball of the electric ball valve is closely matched with the seals at both ends, and the ball needs to be clamped and positioned by the seals on both sides. Therefore, it is easy to be stuck by debris when used in the heating system, especially after a certain period of use. The valve is rusted and cannot work normally. In addition, the ball in the valve is separated from the rotating shaft of the valve. After the ball is rusted, the rotating shaft is easily twisted.

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