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Multi-system circulating air conditioning unit and control method

An air-conditioning unit, multi-system technology, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc. The effect of reducing energy consumption

Inactive Publication Date: 2012-07-25
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the existing air-conditioning units mainly rely on electric energy for refrigeration, high energy consumption and low service life, the present invention provides a multi-system cycle air-conditioning unit and its control method, which has multiple sets of refrigeration cycle systems and introduces a natural cooling source Cooling, high efficiency and energy saving, the service life of the compressor is long

Method used

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  • Multi-system circulating air conditioning unit and control method
  • Multi-system circulating air conditioning unit and control method

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Embodiment 1

[0025] Embodiment one, see figure 1 As shown, a multi-system circulating air conditioning unit in this embodiment includes a control unit ( figure 1 not shown in), the outdoor temperature sensor 11 and the indoor temperature sensor 3 respectively connected to the control unit, the vapor compression cycle system, and the natural air cooling cycle system, the vapor compression cycle system includes two loops, one of which is The refrigerant flows from the water-fluorine heat exchanger 14 to the condenser 12 under the drive of the compressor 13, and then flows from the condenser 12 through the throttle valve 15 into the water-fluorine heat exchanger 14, and the other way is driven by the water pump 7 Next, the indoor heat exchanger 5 flows into the water-fluorine heat exchanger 14 through the three-way valve 8, then flows into the water tank 6 from the water-fluorine heat exchanger 14, and finally flows from the water tank 6 to the indoor heat exchanger 5. The natural wind In th...

Embodiment 2

[0040] Embodiment 2, based on the above-mentioned multi-system circulating air-conditioning unit, the present invention also provides a multi-system circulating air-conditioning unit control method, including the following steps:

[0041] S1. Detect the indoor temperature value T1 and the outdoor temperature value T2, judge the size relationship between the indoor temperature value T1 and the set start value T4, if T1>T4, execute step S2, otherwise, repeat this step;

[0042] S2. Calculate the difference ΔT between the indoor temperature value T1 and the outdoor temperature value T2, and compare the relationship between ΔT and the set temperature difference limit value T5. If ΔT≥T5, execute step S3; otherwise, execute step S4;

[0043] S3. Run the natural wind cooling circulation system: control the three-way valve to conduct along the flow direction from the water pump to the outdoor heat exchanger, start the water pump, outdoor fan, and indoor fan to run, and the water will p...

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Abstract

The invention discloses a multi-system circulating air conditioning unit and a control method. The multi-system circulating air conditioning unit comprises a control unit, an outdoor temperature sensor, an indoor temperature sensor, a steam compression circulating system and a natural wind cooling circulating system. The steam compression circulating system comprises two-path circulation. In the natural wind cooling circulating system, water is driven by a water pump to flow from an indoor heat exchanger to an outdoor heat exchanger through a three-way valve, then flows into a water tank through the outdoor heat exchanger and finally flows towards the indoor heat exchanger through the water tank. An outdoor fan is arranged on one side of the outdoor heat exchanger, and an indoor fan is arranged on one side of the indoor heat exchanger. The multi-system circulating air conditioning unit uses a natural cold source for cooling when outdoor temperature is low, is efficient and energy-saving, reduces use frequency of a compressor, prolongs service life of the compressor, cools by arranging a phase-change released cold energy circulating system and using phase-change materials to release cold energy, can achieve cooling requirements without electricity refrigerating, and further reduces energy consumption.

Description

technical field [0001] The invention relates to a multi-system circulation air-conditioning unit, which belongs to the technical field of air-conditioning and refrigeration engineering. Background technique [0002] my country's communication industry has developed rapidly in recent years, and the number of base stations in various places has also increased year by year. With the deepening of the national energy conservation and emission reduction policy, the country's energy reduction indicators for base stations are also getting higher and higher, and the energy consumption of air conditioners in base stations accounts for about 50%. . Therefore, the energy saving of the air conditioner used in the base station becomes the key to the energy saving of the communication base station. [0003] Due to the large amount of heat-generating equipment inside the base station, especially when the outdoor temperature is low such as spring, autumn and winter, it is still necessary to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/00F24F11/02
Inventor 冯志扬史文伯刘敏学
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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