Dynamic differential pressure balancing valve

Abstract

The invention provides a dynamic differential pressure balancing valve belonging to the technical field of valves. The dynamic differential pressure balancing valve solves the problems of low stability and unobvious using effect of the traditional pressure reducing valve. The dynamic differential pressure balancing valve comprises a valve body and a valve core, wherein a diaphragm is arranged in the valve and partitions the valve body into an upper control cavity and a lower water introducing cavity which are adjacent to each other, one end of the valve core is fixedly connected with the diaphragm, and the other end of the valve core is positioned in the water introducing cavity; and a spring is arranged in the control cavity, both ends of the spring are respectively arranged on the valvebody and the diaphragm, the control cavity is provided with a pressure guiding port communicated with a user water inlet end, and the valve core has the tendency of reducing the opening degree of thevalve under the elastic-force action of the spring. The dynamic differential pressure balancing valve has the advantages of high stability, simple structure and the like.

Description

technical field [0001] The invention belongs to the technical field of valves, and relates to a differential pressure valve, in particular to a dynamic differential pressure balance valve. Background technique [0002] After the country implements household metering, users are implementing self-adjustment for the purpose of energy saving. When the change of the valve opening of the user causes the water flow to change, the flow of other users also changes accordingly, which deviates from the flow required by the design. This leads to dynamic hydraulic imbalance of the system. Therefore, people pay more and more attention to ensuring the dynamic hydraulic balance in the variable flow system. Moreover, in the HVAC water system, due to people's requirements for system quality and the continuous improvement of energy conservation awareness, the variable flow hydraulic system occupies more and more more important position. [0003] The dynamic hydraulic balance of the variable ...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned pressure reducing valve is also a variable flow differential pressure system, which can keep the pressure difference between the user's water inlet and outlet, but the stability of this pressure reducing valve is not high, the effect of use is not obvious, and the operation is inconvenient

Its main manifestation is that there is no mechanism to guide the disc during the movement of the valve disc in the pressure reducing valve, and the valve disc may be deflected during the moving process, and it cannot reach the designated position after the deflection, thus affecting the normal operation of the pressure reducing valve. use

Moreover, the entire valve body cannot adjust its own control pressure, so it can only be suitable for some specific working environments, and its application range is small

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