Dynamic balance electric control valve

Abstract

The invention discloses a dynamic balance electric control valve and belongs to a flow control valve. The technical problem that the conventional dynamic balance valve is complex in structure, low in control precision and narrow in application range is solved. The dynamic balance electric control valve comprises a valve body with an inlet flow channel and an outlet flow channel, wherein an automatic flow balancing device and a flow regulation assembly are arranged on the valve body; the automatic flow balancing device comprises a balance flow channel; a sliding valve core and an elastic part are arranged in the balance flow channel; and the sliding valve core slides in the balance flow channel by utilizing fluid pressure and controls the fluid flow of the balance flow channel. The dynamic balance electric control valve in the embodiment is applied to heating and air-conditioning waterway pipe network systems.

Description

technical field [0001] The invention relates to a flow control valve, in particular to a dynamic balance electric regulating valve. Background technique [0002] Dynamic balance valves are used in systems that require flow control, especially for flow control of non-corrosive liquid media such as heating and air conditioning. The phenomenon of hydraulic imbalance caused by various factors can maintain the flow required by the user, overcome the "unevenness of cold and heat", and improve the room temperature qualification rate of heating and air conditioning; it can effectively overcome the bad operation mode of "large flow, small temperature difference" and improve System energy efficiency for economical operation. [0003] As a public prior art, such as: an invention patent with the authorized announcement number "CN201293128Y" and the name "a dynamic balance electric two-way valve", the scheme includes a valve body, a valve cover, a valve core and a valve stem, and a vari...

AI Technical Summary

Problems solved by technology

[0005] 1. The structure of the automatic balancing spool is complicated and the reliability is low, which leads to the large volume of the whole product, the structure is not compact enough, and it is not conducive to the maintenance of the product;

[0006] 2. Due to the complex structure of the automatic balance spool, when the fluid flows through the automatic balance spool, the resistance is large, the pressure loss is large, and the response sensitivity to the pressure difference is reduced. Especially when the pressure difference is small, the fluid resistance is greater and cannot reach The flow control accuracy cannot meet the requirements of the system;

[0007] 3. The electric valve can only drive the electric spool to open or close the valve, and does not have the function of flow adjustment. It cannot adjust the flow range through the adjustment mechanism according to the requirements of the pipe network system, and the product has a narrow range of use.

Images