CONDITIONING AND/OR HEATING PLANT AND PROCESS OF CONTROLLING THE SAME PLANT

摘要

A conditioning or heating plant and a process of controlling the plant, wherein plant comprises at least one circuit for distributing a carrier fluid, having a delivery line, a return line, and a plurality of channels directly or indirectly connected to the delivery line and return line and configured for supplying respective environments to be conditioned and/or heated, at least one heat treatment central group placed on the circuit. The plant has, for each of the channels, at least one respective heat exchange unit and at least one flow-rate regulator.

主权项

1. Process of controlling a conditioning and/or heating plant, said plant comprising:
at least one circuit configured for distributing a carrier fluid, the at least one circuit having:
at least one delivery line of the carrier fluid,at least one return line of the carrier fluid, anda predetermined number of channels directly or indirectly connected to said delivery line and to said return line and configured for supplying respective environments to be conditioned and/or heated, at least one heat treatment central group placed on the circuit, for each of said channels, the plant further comprising:
at least one respective heat exchange unit operating on each of said channels and configured for supplying a respective environment to be conditioned and/or heated,at least one flow-rate regulator operating on each of said channels,at least one heat sensor configured for detecting a measured value of a thermal parameter dependent on the temperature difference between a first section of each channel upstream said heat exchange unit and a second section of each channel downstream the same heat exchange unit,at least one hydraulic sensor configured for determining a measured value of a flow parameter in each channel, said flow parameter comprising one among: the flow rate passing through the flow-rate regulator, and the pressure difference between a first section of the channel, upstream each said flow-rate regulator, and a second section of the same channel, downstream the same flow-rate regulator, the pressure difference between a first section of a channel, upstream a calibrated orifice, and a second section of the same channel placed downstream the calibrated orifice, the calibrated orifice being placed on each channel, optionally upstream each said flow-rate regulator,wherein the controlling process comprises, in relation to each of said heat exchange units, the following steps:
receiving at least one desired value of an energy parameter comprising one among:
the thermal power released by the carrier fluid passing through each heat exchange unit,the thermal power received by the carrier fluid passing through each heat exchange unit,the heat released from the carrier fluid in a predetermined time interval during the passage through each heat exchange unit,the heat absorbed by the carrier fluid in a predetermined time interval during the passage through each heat exchange unit, calculating, for each heat exchange unit, an effective value of said energy parameter as a function of the measured value of the thermal parameter and of the measured value of the flow parameter, comparing, for each heat exchange unit, said desired value of the energy parameter with said effective value of the same energy parameter.