Multi-connected air-conditioning system and its heat transfer calculation method
A multi-connected air conditioner and calculation method technology, applied in the control/regulation system, heating method, heat measurement and other directions, can solve the problem of separate calculation of heat exchange, and achieve the effect of improving the accuracy and simplifying the calculation process
Active Publication Date: 2021-09-21
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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Problems solved by technology
[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the existing calculation method of heat transfer cannot calculate the heat transfer of each indoor unit of the air-cooled multi-connected air-conditioning system separately, the present invention provides a A heat transfer calculation method for a multi-connected air-conditioning system, the multi-connected air-conditioning system includes a plurality of indoor units, each of which is provided with two pressure measuring points on the air pipe, and the calculated heat transfer The method includes: obtaining the total heat transfer capacity of the multi-connected air-conditioning system; obtaining the pressure difference between the two pressure measuring points on each of the air pipes; obtaining the pressure difference between the two pressure measuring points on each of the air pipes. distance; obtain the pipe diameter of each of the air pipes; obtain the friction factor of each of the air pipes; obtain the density of the heat exchange medium in each of the air pipes; The pressure difference between the two pressure measuring points on each said trachea, the distance between the two pressure measuring points on each said trachea, the diameter of each said trachea, the diameter of each said trachea The friction factor and the density of the heat exchange medium in each of the air pipes are used to calculate the heat exchange of each of the indoor units
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[0020] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the various steps of the method of the present invention are described in a specific order in the present application, these orders are not limiting, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention. Follow the steps described.
[0021] It should be noted that, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it c...
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The invention belongs to the technical field of air-conditioning, and in particular relates to a multi-connected air-conditioning system and a method for calculating heat transfer thereof. The invention aims to solve the problem that the existing calculation method cannot separately calculate the heat exchange of each indoor unit of the air-cooled multi-connected air-conditioning system. To this end, the heat transfer calculation method of the present invention includes: obtaining the total heat transfer of the multi-connected air-conditioning system; obtaining the pressure difference between two pressure measurement points on each air pipe; obtaining the two pressure measurement points on each air pipe The distance between the pressure points; the diameter of each air pipe; the friction factor of each air pipe; the density of the heat exchange medium in each air pipe; The pressure difference and distance between the two pressure measuring points, the pipe diameter and friction factor of each air pipe, and the density of the heat exchange medium in each air pipe, calculate the heat transfer of each indoor unit, so that users can monitor The heat exchange rate of each indoor unit, in order to manage each indoor unit in a targeted manner.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a multi-connected air conditioning system and a method for calculating heat transfer thereof. Background technique [0002] With the continuous improvement of people's living standards, people have also put forward higher and higher requirements for the living environment. In order to maintain a comfortable ambient temperature in medium and large places, the multi-connected air conditioning system has become an essential heat exchange equipment. Specifically, most of the existing multi-connected air-conditioning systems are composed of an outdoor unit and multiple indoor units. In order to facilitate users to manage the operation of multiple indoor The heat exchange rate of the machine is monitored. There are already many methods for calculating heat transfer in the prior art, but most of these methods for calculating heat transfer are only applicable to an...
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IPC IPC(8): F24F11/62
CPCG05B15/02G05B2219/2614F24F11/49F24F11/63F24F2140/12F24F2110/40F24F2140/00G05B19/042G01K5/32G01K17/00F25B2700/00H01H2071/147F28F2200/00G01K17/06F28F2210/00G01K5/30
Inventor 任滔宋强李银银刘景升王冰
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD