Method for efficient running under full load rate and separate unit type air conditioner

An air conditioner, high-efficiency operation technology, applied in heating mode, air-conditioning system, space heating and ventilation details, etc., can solve the problems of adjusting cooling capacity, waste of energy, large energy consumption, etc., achieving high energy saving rate and saving operation Energy consumption and operating costs, the effect of improving efficiency

Pending Publication Date: 2016-12-07
GUANGZHOU DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to solve the problem that the existing unitary air conditioner has a compressor that cannot efficiently and energy-savingly adjust the output cooling capacity with the change of the cooling load of the air conditioner, the energy saving rate of the air conditioning system is low, the energy consumption is large, and energy is wasted problems, providing a method for efficient operation at full load

Method used

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  • Method for efficient running under full load rate and separate unit type air conditioner
  • Method for efficient running under full load rate and separate unit type air conditioner
  • Method for efficient running under full load rate and separate unit type air conditioner

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specific Embodiment 1

[0027] refer to figure 1 , the unitary air conditioner that can operate efficiently under the full load rate involved in this embodiment includes a cabinet 20, and the cabinet 20 is divided into a compressor section 20-1, an air processing section 20-2, and a fan section 20- from bottom to top. 3 and the air outlet section 20-4, two compressors are arranged in the compressor section 20-1, the inner chamber of the air treatment section 20-2 is provided with an evaporator 3, and the side wall is provided with an air inlet 4, and the fan section 20 -3 inner chamber is provided with blower fan 5, and the air outlet section 20-4 side wall is provided with air supply port 16, and the inner cavity of air treatment section 20-2, fan section 20-3 and air outlet section 20-4 is connected; One compressor and multiple condensers are arranged in the compressor section 20-1, the air inlet end of the evaporator 3 is connected to the air inlet 4, and the air outlet end is connected to and pas...

specific Embodiment 2

[0037] see figure 2 , the unitary air conditioner involved in the present embodiment 2 has the structural characteristics that three compressors 1 and three condensers 2 are connected in the compressor section 20-1, and the three compressors 1 are refrigeration units. The configuration of large, medium and small heads with different capacity, the cooling capacity of the large head is 50% of the total cooling capacity of the unit, the cooling capacity of the medium head is 30%, and the small head is 20%. The method of efficient operation involved, for a unit with more than three compressors, there are three types of compressor heads with large, medium and small cooling capacities, and at least two types of compressor heads with different cooling capacities; among them: the cooling capacity of large heads It is 50% of the total cooling capacity of the unit, 30% for the middle machine head, and 20% for the small machine head. Under the condition of 5-100% load (if the unit is no...

specific Embodiment

[0042] In other embodiments of the present invention, the number of heads of the multi-head unit air conditioner can be four, five, six or more without limitation. For the configuration of its structural form and cooling capacity, refer to specific embodiment 1 or the specific embodiment.

[0043] according to image 3 The cooling performance curve of the refrigeration unit shown in the figure shows that the higher the load rate, the higher the cooling efficiency of the unit. Therefore, the size of the double-head unitary air conditioner is better than the conventional double-head unitary air conditioner when the air-conditioning load is within the range of the cooling capacity of the unit. Under the full load rate, the operating efficiency is higher and the required energy consumption is lower.

[0044] From image 3 Looking at the COP performance curve of a single refrigeration compressor, under a given cooling water temperature, the COP performance curve is the largest wh...

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Abstract

The invention relates to a method for efficient running under full load rate and a separate unit type air conditioner. The method is characterized in that the separate unit type air conditioner is adopted and is provided with a plurality of compressor structures, the method that large compressors and small compressors are matched is adopted, and the compressors are set to be in different refrigerating capacities; for a double-compressor unit, the refrigerating capacities of the compressors are different; for a unit with more than two compressors, at least two kinds of compressor heads of different refrigerating capacities are provided; and the mode that the refrigerating capacities of the compressors are controlled respectively is adopted, the unit cold quantity proportions of all the compressors are determined through the characteristic of the refrigerating performance of the compressors and the characteristic of the annual cold load of an air conditioner system, and the determining principle is to keep each single compressor running under the high energy efficiency ratio and high load rate as much as possible. Through matching of the large compressors and the small compressors, the efficiency of the unit can be improved in the whole cold supply period.

Description

technical field [0001] The invention relates to a method capable of running efficiently under full load rate and a unit air conditioner. Belongs to the field of HVAC technology Background technique [0002] In buildings, the energy consumption of the air-conditioning system can account for 40%-50% of the total energy consumption of the building. In the air-conditioning system using the unitary air conditioner, because the unitary air conditioner also serves as the refrigeration host and the air-conditioning terminal, both The compressor provides cooling capacity, and the fan delivers cooling capacity. It is the main equipment of this type of air conditioning system, and its energy consumption can account for more than 80% of the energy consumption of the air conditioning system. Therefore, the energy-saving operation of the unitary air conditioning regulator is related to the entire air conditioning system. energy saving rate. [0003] From the perspective of the whole day...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F1/02F25B31/00F24F13/22F24F13/08F24F13/30
CPCF24F1/02F24F13/08F24F13/222F24F13/30F25B31/00
Inventor 屈国伦谭海阳
Owner GUANGZHOU DESIGN INST
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