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Electricity economizer centralized management method and system of central air-conditioning

A central air-conditioning and centralized management technology, applied in heating and ventilation control system, heating and ventilation safety system, space heating and ventilation, etc. Flow and other issues, to achieve the effect of eliminating impact, saving electric energy, and reducing mechanical loss

Inactive Publication Date: 2008-03-12
SUZHOU IRON TECH
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Problems solved by technology

[0002] Due to the instability of the load of the central air-conditioning system, the original chilled water system and cooling water system of the air-conditioning system use multiple water pumps to supply water in parallel, and the flow of water is controlled by manual control, which can meet the requirements of air-conditioning load changes to a certain extent. , the power of a single pump is relatively large, changing the number of single pumps can significantly change the water flow, it is difficult to accurately control the water flow requirements of the refrigeration unit

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  • Electricity economizer centralized management method and system of central air-conditioning
  • Electricity economizer centralized management method and system of central air-conditioning

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[0022] Central air-conditioning power saver centralized management system, including central control cabinet, fuzzy controller and sensors, as shown in Figure 1 chilled water system, 1# air-conditioning host 101, 2# air-conditioning host 102, 3# air-conditioning host 103 and 4# air-conditioning host 104. A water flow pressure difference sensor 121 is installed between the supply and return water mains of the chilled water system. The water flow pressure difference sensor 121 is installed between the chilled water tank 111 and the chilled water collector 112, and the outlet pipe of the water separator 111 is installed There are a water temperature sensor 132 and a water temperature sensor 133. The two chilled water return pipes are equipped with a flow meter 141 and a flow meter 142 respectively. A water temperature sensor 134 and a chilled water pump are installed between the chilled water collector 112 and the chilled water pump 113. There are water temperature sensors on the ref...

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Abstract

The invention relates to a method and a system for centralized management of an electric saver of a central air-conditioner; a water flow pressure difference sensor between a water supply main pipe and a return water main pipe of a central air-conditioner freezing water system, a flow meter for a two-way freezing water return pipe, a water temperature sensor for a back-way freezing water return pipe of a freezing water pump, the water temperature sensor for a freezing water outlet pipe of an air conditioning mainframe, the water temperature sensor for a cooling water outlet pipe of the air conditioning mainframe and the water temperature sensor for a cooling water inlet main pipe of the air conditioning mainframe respectively collect pressure difference, flow speed and water temperature of the corresponding position; collection values are transferred into a fuzzy controller, the fuzzy controller gains dynamic flow and speed parameters through the control of a fuzzy prediction model and an optimal algorithm model, the dynamic flow and speed parameters are transferred into each electric saver, and the speed and the flow of corresponding fans and water pumps are controlled through the frequency change of the electric saver. The invention has the advantages of the high temperature-adjusting precision, the good dynamic performance, the small mechanical loss, the fully-automatic remote monitoring, the closed-loop control of temperature, the soft starting and stopping of a motor and the optimum system electricity-saving rate.

Description

Technical field [0001] The invention relates to a centralized management system for power savers, in particular to a method and system for centralized management of power savers for central air conditioners. Background technique [0002] Due to the instability of the central air-conditioning system load, the original chilled water system and cooling water system of the air-conditioning system use multiple water pumps in parallel to supply water. The water flow is controlled by manual control, which can meet the requirements of air-conditioning load changes to a certain extent. , The power of a single pump is relatively large, and changing the number of operating units of a single pump can significantly change the water flow rate, and it is difficult to accurately control the water flow requirements of the refrigeration unit. At the same time, the load of the air conditioning system is different in different stages. [0003] Therefore, according to the load requirements, the air c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02
Inventor 贠超王伟李成群臧冀原马永波张银花倪胜一李安标
Owner SUZHOU IRON TECH
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