Method and equipment for controlling a pipe network
AssigneeNeles Controls Oy
InventorsJouni Pyotsia, Mika Kreivi
Life of this patent
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Abstract
A method and equipment for controlling a pipe network comprising piping (1), a pump (2) and at least two control valves (3), whereby the valve position and the flow through the valve are monitored, and in order to achieve desired flows the rotational speed of the pump and the position of each valve are adjusted on the basis to the position and flow data received. The rotational speed of the pump (2) is adjusted to be as low as possible, but at the same time sufficient for maintaining the gain of the valves (3). The positions of the valves (3) are adjusted to be as open as possible, the valve opening being, however, for the major part of the time, not more than a certain predetermined portion of the opening of the totally open position.
Claims23
A method for controlling a pipe network for transporting a fluid from one location to at least another location, said pipe network comprising piping for transporting the fluid from the one location to at least another location, a pumping assembly connected to the piping for driving the fluid through the piping, and at least two control valve assemblies connected to the piping for controlling the amount of fluid flowing through the piping, said method comprising the steps of:
- monitoring at least one of the flow of fluid through each of the at least two valve assemblies and the valve position of each of the at least two valve assemblies;
- and
- adjusting a rotational speed of the pumping assembly and the valve position of each of the at least two valve assemblies in response to said monitoring of at least one of the flow of fluid through each of the at least two valve assemblies and the valve position of each of the at least two valve assemblies in order to achieve a desired fluid flow through the pipe network.
A system for controlling a pipe network for transporting a fluid from one location to at least another location, said pipe network comprising piping for transporting the fluid from the one location to at least another location, a pumping assembly connected to the piping for driving the fluid through the piping, and at least two control valve assemblies connected to the piping for controlling the amount of fluid flowing through the piping, said system comprising:
- a monitoring assembly for sensing at least one of the flow of fluid through each of the at least two valve assemblies and the valve position of each of the at least two valve assemblies;
- and
- a control assembly for adjusting a rotational speed of the pumping assembly and the valve position of each of the at least two valve assemblies in response to at least one of the sensed flow of fluid through each of the at least two valve assemblies and the sensed valve position of each of the at least two valve assemblies in order to achieve a desired fluid flow through the pipe network.
Dependencies are inferred from the claim text.