Condenser of air conditioner outdoor unit and outdoor unit equipped with same
A technology for air conditioner chambers and condensers, applied to evaporators/condensers, refrigerators, refrigeration components, etc., can solve the problems of insufficient cooling capacity, unbalanced distribution branches, and large pressure loss, etc. Liquid uniformity and stability, improve uniformity and stability, and improve the effect of overall heat transfer efficiency
Active Publication Date: 2011-08-10
广东科龙嘉科电子有限公司
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Problems solved by technology
[0007] The invention provides a condenser of an outdoor unit of an air conditioner and an outdoor unit equipped with the condenser, which can solve the problems in the prior art that the flow rate of the refrigerant in the subcooling section becomes slow, the pressure loss is large, the cooling capacity cannot be exerted, and the flow of each flow is divided. The branches are unbalanced, which leads to the low EER of the whole machine, and the measured EER of the whole machine sometimes fails to meet the national standard 4 energy efficiency requirements
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Embodiment 1
[0035] see figure 2 , Figure 8 and Figure 9 , Condenser 1 is a double row with a total of 32 U-shaped tubes. There are 4 shunt branches in the superheating section 13 and saturation section 14, the flow of the first shunt branch 3-1 is an inverted "U" type setting, and the 2nd, 3, 4 shunt branches 3-2, 3-3, The process of 3-4 is an inverted "N" type setting. The first branch 3-1 has 8 U-shaped pipes 8-1, and each branch pipe in the 2nd, 3, and 4 branch 3-2, 3-3, and 3-4 is 7 U-shaped Tubes 8-2, 8-3, 8-4. There are 29 U-shaped tubes in total in the 4 diversion branches 3-1, 3-2, 3-3, and 3-4.
[0036] The intake pipe group 2 has four intake branch pipes in total, namely the first intake branch pipe 2-1, the second intake branch pipe 2-2, the third intake branch pipe 2-3 and the fourth intake branch pipe 2-4. The intake branch pipes 2-1, 2-2, 2-3, and 2-4 are respectively connected to the inlets of the first, 2, 3, and 4 shunt branches 3-1, 3-2, 3-3, and 3-4.
[0037] ...
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The invention provides a condenser of an air conditioner outdoor unit and an outdoor unit equipped with the same. The invention can solve the problem of the prior art that since refrigerant flows slowly at an undercooling section with large pressure loss, refrigerating output is insufficient and all distributary branches are uneven, resulting in lower overall EER (Energy Efficiency Ratio) so thatthe overall EER measured value can not reach energy efficiency requirement of the international standard grade 4. The condenser of an air conditioner outdoor unit comprises a superheat section, a saturation section and the undercooling section and is characterized in that the undercooling section is arranged at the lowest part of the condenser, and the quantity of U-type tubes at a windward side of the undercooling section is more than that of U-type tubes at a leeside of the undercooling section. The invention realizes same refrigerating output sections with same structural size, and enablesthe refrigerating EER measured value to reach the requirement of the international standard grade 2 and further reach the requirement of the international standard grade 1 by properly lengthening thecondenser.
Description
technical field [0001] The invention belongs to air-conditioning and refrigeration engineering, and in particular relates to an improvement of the condenser structure of an outdoor unit of an air-conditioner. Background technique [0002] see figure 1 At present, household fixed-speed air conditioners with a cooling capacity of 7200W generally use 32 U-shaped tube condensers with an outer diameter of 9.52mm. Due to the unreasonable process layout, the energy efficiency ratio of the whole machine is basically 4 or even 5 in the national standard. [0003] In the refrigeration cycle, the condensation process of the refrigerant in the condenser is superheated, saturated and subcooled, so the condenser is generally divided into a superheated section, a saturated section and a subcooled section. [0004] Although this process is also arranged in a countercurrent process, two of the four branches are connected in a "U" shape, and there are too many U-shaped tubes. The superheated...
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IPC IPC(8): F25B39/04
Inventor 王军杜顺祥谢军
Owner 广东科龙嘉科电子有限公司