Tail end control system and method of variable-temperature-difference self-adaptive air conditioner

An air-conditioning terminal and control system technology, applied in heating and ventilation control systems, space heating and ventilation, heating and ventilation safety systems, etc. question

Active Publication Date: 2014-03-26
SANHUA AWECO APPLIANCE SYST WUHU CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0008] Therefore, there are certain defects in the two adjustments of flow balance valve and fixed temperature difference control. The use of flow balance valve will increase the system resistance and increase power consumption. The use of fixed temperature difference control will cause large changes in water flow, making the entire network The hydraulic balance of the system is not easy to control, and in some specific cases, the system will have misoperations that are not conducive to control

Method used

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  • Tail end control system and method of variable-temperature-difference self-adaptive air conditioner
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  • Tail end control system and method of variable-temperature-difference self-adaptive air conditioner

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Embodiment Construction

[0036] The following takes the central air conditioner using the chilled water circulation system as an example for specific description. figure 1 It is an embodiment of the variable temperature difference adaptive air-conditioning terminal control system applied in the central air-conditioning. In this embodiment, each terminal fan coil unit is equipped with a set of this system to independently control the water volume of the fan coil unit, so each terminal They are relatively independent control systems. When the central air conditioner is turned on and running, the water pump 11 of the chilled water system starts to supply water to each end fan coil unit through the water supply pipeline 12. Specifically, at one end, the chilled water flows through the water inlet temperature measuring ball valve 6, and then enters the fan coil unit. Pipe 1, under the action of fan 10, the heat exchanger of fan coil unit 1 exchanges heat with the outside world. After heat exchange, the chi...

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Abstract

The invention provides a tail end control system and method of a variable-temperature-difference self-adaptive air conditioner. A variable-temperature-difference self-adaptive control method is adopted at the tail end of an air conditioning system, collected data are subjected to calculation to obtain the best temperature difference, a control system is used for controlling the actual temperature difference to reach or to be nearest to the calculated temperature difference, circulating freezing water temperature difference at the tail end of the air conditioner is made to change in a self adaption mode along with work conditions, flow constancy is maintained, and hydraulic balance of the whole air conditioning system is achieved.

Description

technical field [0001] The invention relates to a variable temperature difference self-adaptive air conditioner terminal control system and a control method, which belong to the field of heating, ventilating and air conditioning. Background technique [0002] With the development of the economy, the central air-conditioning system has become one of the indispensable facilities in modern buildings. Since the central air-conditioning system usually consumes a lot of energy, its energy-saving design is imperative. The hydraulic balance control of the central air-conditioning system is a key technology to ensure that the central air-conditioning system operates according to the designed technical parameters, ensure the reliability of the system operation and achieve a good temperature control effect. [0003] In order to solve the problem of hydraulic imbalance in the central air-conditioning system, the method adopted in the prior art is usually to install dynamic or static fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 尹斌
Owner SANHUA AWECO APPLIANCE SYST WUHU CO LTD
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