Energy-saving control system and control method

Abstract

The invention discloses an energy-saving control system and a control method. The energy-saving control system comprises a temperature sensor, a data control end, energy-saving equipment, alternatingcontrol equipment, a fault sensor and an alarm, wherein the temperature sensor is used for sensing the current temperature of each area in real time; the data control end is used for inputting the target temperature of each area; the energy-saving equipment is used for making a temperature control plan to regulate a central air conditioner; the alternating control equipment is connected with the central air conditioner and controls the central air conditioner; the fault sensor is used for sensing whether the electric leakage of the central air conditioner exists or not; and the alarm is used for giving an alarm. The energy-saving control system and the control method have the advantages and the beneficial effects that the cold air amount and the hot air amount output by fan coil pipes of each area are controlled precisely, so that the energy utilization rate is improved, and the overall energy consumption of the central air conditioner is reduced; long-time lasting stable operation ofthe central air conditioner is ensured; the automation degree of the energy-saving control system is improved; the use of labour is reduced; the labour cost is reduced; the stability of the temperature of each area is ensured; the situation of energy waste is avoided; the electric leakage situation of the central air conditioner is sensed; and the use safety of the central air conditioner is improved.

Description

technical field [0001] The invention relates to the field of electrical control, in particular to an energy-saving control system and a control method. Background technique [0002] At present, for large-scale central air conditioners using water as the medium in China, frequency conversion control in machine rooms is generally used in energy-saving methods, but the existing frequency conversion control devices cannot change the fluid in the refrigeration pipes, cooling pipes, hot water pipes and return water pipes in the central air conditioner. Therefore, although the frequency conversion control changes the air supply volume of cold air or hot air in each area of ​​the building, it does not change the pressure or flow of the fluid in the central air conditioner, so the cold source host or heat source host will still use a relatively high Large power outputs coolant or high-temperature water to the fan coil unit, not only has no energy-saving effect, but also increases the...

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Problems solved by technology

[0002] At present, for large-scale central air conditioners using water as the medium in China, frequency conversion control in machine rooms is generally used in energy-saving methods, but the existing frequency conversion control devices cannot change the fluid in the refrigeration pipes, cooling pipes, hot water pipes and return water pipes in the central air conditioner. Therefore, although the frequency conversion control changes the air supply volume of cold air or hot air in each area of ​​the building, it does not change the pressure or flow of the fluid in the central air conditioner, so the cold source host or heat source host will still use a relatively high Large power outputs coolant or high-temperature water to the fan coil unit, not only has no energy-saving effect, but also increases the energy consumption of the control equipment

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