The reform of heating and heat metering system, the radiator temperature control valve must be installed. In the heating operation with regulation of users of the temperature control valve, heat flow changing area. We supply a variable flow operation, active power flow control in the hands of the hands of users, and the Thermotics Inc will not be able to predict and control the flow changes. In variable flow operation under the condition of this temperature control valve, adjusting control device must be installed in order to play a role in. Otherwise, will make the system not only is not up to the requirements of regulation, sometimes counterproductive.
An effective and energy saving heating system with adjusting the corresponding control device, such as a self-operated flow, differential pressure control valve. With the reform of heating metering and charging system, indoor heating thermostat heating network how to properly equipped with control equipment is very important. This paper describes the variation characteristics before and after the assembly temperature control valve system, points out the control device and the temperature control valve properly equipped, has guiding significance for the design and transformation. The following from the self-operated pressure control valve, self-operated flow control valve and balancing valve at.
Self-operated pressure control valve characteristics and self-operated flow control valve is similar, and it also does not need external power, only rely on the characteristics of fluid flow in the downstream, or resistance to change within a certain range, change it can through the pipeline pressure to adjust the opening degree, so that the pressure drop of fluid change through the valve core to make up for the pipeline resistance, users of the entrance pressure remained unchanged. The characteristics of the valve does not need external power, depending on the characteristics of fluid flow, changes in a certain range in the upper and / or lower resistance, change it can through the pipeline pressure to adjust the opening degree, so that the flow remains unchanged.
From the basic principles of regulation, there is actually a balance valve manual valve opening indication. Upstream, downstream of the balance valve ends of the tube with a hole, used to measure the fluid through the valve pressure drop. When in use, the valve pressure drop is measured and read out the degrees, can be considered the flow through the valve. Combination of the equivalent of regulating valve and equivalent orifice flow meter, so that the slip road to the flow distribution requirements. When the total cycle pump gear shift operation, the flow of the slip road ratio unchanged.
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