Intelligent flow balancing device

Abstract

The invention discloses an intelligent flow balancing device. The intelligent flow balancing device comprises an intelligent water valve actuator, temperature sensors, a water supply pressure sensor, flow balancing valves and pilot tube flowmeters, wherein the intelligent water valve actuator is arranged on a pipeline, the temperature sensors are arranged on a water supply pipeline and a water return pipeline, the water supply pressure sensor is arranged on the water supply pipeline, the flow balancing valves are arranged on the water supply pipeline and the water return pipeline and controlled by the intelligent water valve actuator, the pilot tube flowmeters are arranged between the flow balancing valves and the intelligent water valve actuator, and a calculation chip is arranged in the intelligent water valve actuator. By the adoption of the intelligent flow balancing device, a straight-through type valve is used for reducing local resistance; flow sensors and the temperature sensors are arranged on all branched pipes, and the calculation chip is arranged in the intelligent water valve actuator so that the balance of a system can be re-adjusted according to the actual operating condition while the monitoring function is achieved, the maintenance cost is reduced, the structure is simple, and operation is convenient.

Description

technical field [0001] The invention relates to the technical field of circulating water control of a central air-conditioning system, in particular to an intelligent flow balance device. Background technique [0002] The dynamic balance electric control valve is a combination of an electric two-way proportional integral control valve and a dynamic balance valve. It is a valve that performs dynamic balance and electric adjustment synchronously. Its valve core is composed of an adjustable part and a hydraulic automatic adjustment part. The opening of the adjustable part can be electrically adjusted at any time according to actual needs. The hydraulic automatic adjustment part can automatically adjust the opening of the valve core according to different pressure differences, that is, the size of the flow area of ​​the water outlet, so that the flow through the valve is constant. Adjustable sector setpoint. [0003] When the electric control valve is adjusted by the instru...

AI Technical Summary

Problems solved by technology

[0005] 1. Since the conventional dynamic balance electric regulating valve adopts a high-resistance stop valve to maintain the pressure difference between the two ends, it significantly increases the system resistance and increases the energy consumption of the pump;

[0006] 2. Since the valve adopts the principle of self-balancing, the hydraulic balance is adjusted according to the pressure difference at both ends of the valve. During the adjustment process, a special adjustment device is required, and professional and technical personnel are required to debug. However, if the system changes, the secondary adjustment It is difficult and the system is not easy to maintain for a long time;

[0007] 3. The valve actuator is mainly used to adjust the opening, and the terminal is mainly related to power supply, control signal, valve position feedback, etc., without computing power, it is impossible to know the flow, energy and other information;

[0008] 4. The valve has no communication capability. When the system needs secondary adjustment, it can only be adjusted one by one, and the hydraulic balance of the system cannot be fully analyzed;

[0009] 5. Since the hydraulic balance part is self-operated, the feedback information of the valve is insufficient. When there is a problem with the hydraulic balance of the valve, the system has no feedback at all.

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