What is the operating principle of throttling manifold in industrial production?

What is the operating principle of throttling manifold in industrial production?
The operating principle of throttling manifold in industrial production involves the basic principles of fluid mechanics and control engineering. The following is a detailed explanation of its operating principle:
1、 Introduction
As a device for controlling flow in fluid pipelines, throttling manifolds are widely used in various industrial production fields. It achieves flow control by changing the cross-sectional area of fluid flow, thereby meeting different needs in the production process.
2、 Composition of throttling manifold
A throttling manifold is usually composed of throttling valves, gate valves, pipelines, piping, pressure gauges, and other components. The throttle valve is the core component of the throttle manifold, which changes the cross-sectional area of fluid flow by adjusting the opening of the valve. Gate valves are used to control the flow of fluids. Pipelines and pipelines are responsible for transporting fluids from upstream to downstream, and pressure gauges are used to monitor pressure changes of fluids in pipelines.
3、 The operating principle of throttling manifold
Fluid enters the throttling manifold: The fluid enters the throttling manifold through the inlet pipeline and first passes through the control of the gate valve to ensure that the fluid can smoothly enter the throttling manifold.
Throttling process: When fluid enters the throttling tube, due to the smaller diameter of the inner hole of the throttling tube, the cross-sectional area of the fluid decreases, resulting in a decrease in the flow rate through the throttling tube per unit time. According to the Bernoulli equation, when a fluid passes through a throttling tube, the flow velocity increases while the pressure decreases. This phenomenon of pressure reduction is called throttling phenomenon.

Flow control: The opening of the throttle valve determines the cross-sectional area of the fluid passing through the throttle tube, which in turn determines the fluid flow rate. By adjusting the opening of the throttle valve, flow control can be achieved. In practical applications, the opening of the throttle valve can be adjusted manually, hydraulically, or electrically to meet different production needs.
Pressure monitoring and regulation: The pressure gauge in the throttling manifold is used to monitor the pressure changes of the fluid in the pipeline in real time. When the fluid pressure exceeds the set value, the pressure can be reduced by adjusting the opening of the throttle valve to ensure safety during the production process.
Fluid flow out of the throttling manifold: After the throttling process, the fluid flows out of the throttling manifold through the outlet pipeline and enters the downstream process flow.
4、 Characteristics of throttling manifold
Control: The throttle manifold can achieve flow control by adjusting the opening of the throttle valve, meeting different needs in the production process.
Wide applicability: Throttle manifolds are suitable for various fluid media, including liquids, gases, and vapors.
Good stability: The throttling manifold has good stability and can operate stably for a long time in harsh working environments.
Easy to maintain: The structure of the throttling manifold is simple, easy to maintain, and can reduce production and maintenance costs.
5、 Summary
As an important device in industrial production, throttling manifold controls the flow rate by changing the cross-sectional area of fluid flow. Its operating principle involves the basic principles of fluid mechanics and control engineering, including the steps of fluid entering the throttling manifold, throttling process, flow control, pressure monitoring and regulation, and fluid flowing out of the throttling manifold. Throttle manifolds have the characteristics of control, wide applicability, good stability, and easy maintenance, and are widely used in industries such as petroleum, chemical, and metallurgy.