Method and device for obtaining pressure parameters of multi-connected air conditioning system
A multi-connected air conditioner and system pressure technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problem of increasing the arrangement of pressure sensors, reducing the market competitiveness of multi-connected air-conditioning systems, cost rise and other issues, to achieve the effect of cost reduction
Active Publication Date: 2014-10-15
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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However, this method needs to increase the arrangement of pressure sensors, which increases the cost of the multi-connected air-conditioning system, thereby reducing the market competitiveness of the multi-connected air-conditioning system
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[0073] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0074] In the existing method for obtaining pressure parameters of a multi-connected air-conditioning system, a pressure sensor is arranged on the suction and exhaust pipelines of the multi-connected air-conditioning system to obtain corresponding pressure parameters, which increases the cost of the multi-connected air-conditioning system.
[0075] In the embodiment of the present invention, it is considered that in the existing multi-connected air-conditioning system, in order to mo...
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The invention discloses a method and a device for acquiring a pressure parameter of a multi-connected air-conditioning system. The method comprises the following steps: determining a current operation state, and measuring to obtain a corresponding temperature parameter under the operation state; obtaining a saturated temperature parameter corresponding to the measured temperature parameter through a corresponding relationship between the pre-established saturated temperature parameter and the corresponding temperature parameter according to the measured temperature parameter; and inquiring a pre-stored refrigerant property table, and acquiring the pressure parameter corresponding to the measured saturated temperature parameter. Cost of the multi-connected air-conditioning system can be reduced by using the invention.
Description
technical field [0001] The invention relates to air-conditioning control technology, in particular to a method and device for obtaining pressure parameters of a multi-connected air-conditioning system. Background technique [0002] With the continuous improvement of people's living standards, installing air-conditioning devices or systems to improve the comfort of living and working environments in living and indoor working environments has become an important choice for people to improve their comfort needs. Among them, multi-connected air-conditioning technology is an important direction for the development of air-conditioning due to its advantages of free control, high efficiency and energy saving, and easy installation and maintenance. [0003] A multi-split air-conditioning system generally includes one outdoor unit and one or more indoor units. In actual use, some or all of the indoor units can be activated according to changes in outdoor ambient temperature, air-condi...
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IPC IPC(8): F24F11/00
Inventor 梁爱云
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST