Automatic control system with hydraulic balance for air conditioning engineering

Abstract

The invention discloses an automatic control system with hydraulic balance for air conditioning engineering, and particularly relates to the technical field of air-conditioning engineering control. The automatic control system comprises a temperature detection unit, and the output end of the temperature detection unit is electrically connected with the input end of a data integration module. According to the automatic control system, through the arrangement of the temperature detection unit, the data integration module, a control center unit, an information comparison module, a resource storage center, a statistical calculation module, an analysis and judgment module, a signal control module, an execution module and a valve opening adjustment module, and due to the fact that an adopted temperature difference adjusting valve can replace various balance valves in an existing air conditioning system, the problem of hydraulic imbalance of the air conditioning system under the temperature difference control mode is solved, water pump energy consumption can be effectively reduced, meanwhile, investment cost is reduced, the problem of hydraulic imbalance of a pipe network can be solved, and the accuracy and the stability of the temperature difference control mode of a cold and heat source header pipe are improved, so that the system has good development and use prospects.

Description

technical field [0001] The invention relates to the technical field of air-conditioning engineering control, and more specifically, the invention relates to an automatic control system for air-conditioning engineering with hydraulic balance. Background technique [0002] As an important part of the building system, the central air-conditioning system accounts for a large proportion of the energy consumption and electricity of the entire building system. According to statistics, the energy consumption of the construction industry accounts for 30% of the country's total energy consumption, and the electricity consumed by the air-conditioning system accounts for 30% of the country's total energy consumption. 70% of the energy consumption of the entire building accounts for about 18% of the company's total electricity consumption. With the demand for building humanized services, this number will continue to grow. Therefore, the energy saving of the air conditioning system is of ...

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Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic control system for air-conditioning engineering with hydraulic balance. The hydraulic imbalance caused a large difference between the actual temperature difference between the inlet and outlet water of some terminal equipment and the set temperature difference of the chilled water supply and return main pipe, which failed to achieve the expected control effect and eventually caused large fluctuations in indoor temperature and humidity, reducing the control efficiency. Accuracy and stability, and there is no limit to the minimum opening of the valve, which may increase the impedance of the pipe network to varying degrees, resulting in poor energy-saving effects of the pump

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