Return air superheat degree test method of multi-split air conditioning system and multi-split air conditioning system
A multi-connected system and return air superheat technology, applied in the field of multi-connected systems, can solve the problems of insufficient test accuracy and high cost, and achieve the effects of avoiding liquid hammer, improving reliability and reducing costs.
Active Publication Date: 2015-09-09
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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- Application Information
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Problems solved by technology
However, when testing the superheat of the part of the refrigerant passing through the recooler, the test accuracy is not enough, and the cost is still high
Method used
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Embodiment Construction
[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0028] The method for testing the return air superheat of the multi-line system and the multi-line system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0029] Such as figure 2 As shown, the multi-split system in one embodiment of the present invention includes an outdoor unit 10, an indoor unit 20 (there may be multiple indoor units), a distribution device MS and a control module (not shown in the figure). Wherein, the shunt device MS includes a reco...
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The invention discloses a return air superheat degree test method of a multi-split air conditioning system. The multi-split air conditioning system comprises a recooling loop consisting of a first heat exchanger and a second heat exchanger, a first temperature sensor, a second temperature sensor and a third temperature sensor. The return air superheat degree test method comprises the following steps: acquiring a first temperature value detected by the first temperature sensor, a second temperature value detected by the second temperature sensor and a third temperature value detected by the third temperature sensor; acquiring a minimum value between the first temperature value and the second temperature value and acquiring a maximum value between the third temperature value and the second temperature value; calculating the superheat degree according to the minimum value and the maximum value. According to the return air superheat degree test method, accurate testing of superheat degree of a refrigerant at an outlet of the recooling loop is realized by completely adopting the temperature sensors, so that the refrigerant entering a compressor can be guaranteed not to be in a liquid state, and the cost can also be greatly reduced. The invention also discloses the multi-split air conditioning system.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method for testing the return air superheat of a multi-connection system and a multi-connection system. Background technique [0002] The heat recovery multi-line system can use the condensation heat and evaporation heat of the refrigeration system at the same time, thereby greatly improving the energy utilization efficiency, and has a broad market prospect. Among them, the two-pipe multi-connection system is a heat recovery system composed of high-pressure pipes and low-pressure pipes connecting the outdoor unit and the distribution device MS. MS can distribute gas and liquid refrigerants to indoor units in rooms with different needs, so as to meet the cooling or heating requirements of different rooms. [0003] In order to prevent the high-pressure liquid refrigerant from flashing when it is transported to the indoor unit, it is necessary to have sufficient subcooli...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F11/00F24F11/02
CPCF24F11/89F24F2110/00F24F11/30F24F2140/20F25B2313/0231F25B2600/2509F25B2313/006F25B2500/28F25B2600/02F25B2700/21151F25B13/00F25B41/20F25B49/02F24F11/00F25B2700/2102F25B2400/13G01K13/026F25B49/022F25B2400/05F25B2500/19F25B2600/0253F25B2600/21F25B2700/2101F25B2700/2103G01K3/08G01K13/02
Inventor 罗彬李元阳
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD