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Evaluating method and device for air conditioner control state

A technology of control status and evaluation method, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as slow judgment and inability to quickly grasp the control status of air conditioners

Inactive Publication Date: 2007-06-20
YAMATAKE HONEYWELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned VAV air-conditioning system, only the current indoor temperature tpv and the set temperature tsp of the controlled area and the air volume Q for blowing air to the controlled area are displayed numerically on the monitor.
Therefore, the manager cannot quickly grasp whether the current air-conditioning control status of the controlled area is good or bad, and there is a problem that the judgment is slow

Method used

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  • Evaluating method and device for air conditioner control state
  • Evaluating method and device for air conditioner control state
  • Evaluating method and device for air conditioner control state

Examples

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a layout diagram showing an example of a VAV air-conditioning system used when implementing an air-conditioning control state evaluation method according to an embodiment of the present invention.

[0027] In this figure, 1 is an air conditioner. The air conditioner 1 includes a cooling coil 3 for supplying cold water CW through a control valve 2 , a heating coil 5 for supplying warm water HW through a control valve 4 , and a fan 6 .

[0028] 7 is a control device for controlling the actions of the control valves 2, 4 and the fan 6. 15 is a display device connected to the control device 7 . In this VAV air conditioning system, the air from the air conditioner 1 blown out by the fan 6 after passing through the cooling coil 3 and the heating coil 5 is supplied to the controlled areas 9 - 1 to 9 - n through the air duct 8 . The air duct 8 is provide...

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Abstract

To rapidly grasp the good or bad of an air-conditioning control state in a controlled area in an air volume varying air conditioning system such as a VAV air conditioning system. The static pressure state of the fan of an air conditioner is determined by using the damper opening [theta] of a VAV unit and a temperature deviation [Delta]t between an indoor temperature and a set temperature (static pressure over / static pressure appropriate / static pressure short). An air volume ratio [alpha] is obtained by using the blown amount Q of air supply from the VAV unit, and the air blow state (air blow amount over / air blow amount appropriate / air blow amount short) of the fan of the air conditioner by using the air volume ratio [alpha] and the temperature deviation [Delta]t. Based on this determined results, the air volume ratio [alpha] and the damper opening [theta] are plotted on a two-dimensional graph (G1) in which the damper opening [theta] is taken on an abscissa and the air volume ratio [alpha] is taken on an ordinate.

Description

technical field [0001] The present invention relates to an evaluation method and evaluation device for an air-conditioning control state (air-conditioning control state) in a VAV (variable-air-volume: variable air volume) air-conditioning system or the like. Background technique [0002] In the prior art, for example, in a VAV air-conditioning system, an air volume adjustment unit (VAV unit) is provided on the air duct that sends air from the air conditioner to the controlled area. The VAV air-conditioning system controls the opening degree θ of the damper of the VAV unit according to the temperature difference between the indoor temperature tpv of the controlled area and the set temperature tsp, and adjusts the air volume Q( For example, refer to Patent Documents 1 and 2). [0003] A monitoring board is installed in this VAV air conditioning system. On the screen of the monitor, the current indoor temperature tpv and the set temperature tsp of the controlled area, the air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02
Inventor 陈向阳
Owner YAMATAKE HONEYWELL CO LTD
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