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Air conditioning system and control method thereof

An air-conditioning system and refrigerant technology, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve problems such as insufficient dehumidification and insufficient heating, so as to avoid insufficient dehumidification and reduce energy consumption , to avoid the effect of uneven temperature distribution

Active Publication Date: 2016-11-23
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the above-mentioned structure is used for heating and dehumidification, since the same part of the heat of the refrigerant is first used for heating and then taken away by the airflow, and then used for cooling, neither the dehumidification heat exchanger 21X1 nor the heating heat exchanger 22X can fully play their role , that is, insufficient dehumidification and insufficient heating

Method used

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  • Air conditioning system and control method thereof
  • Air conditioning system and control method thereof
  • Air conditioning system and control method thereof

Examples

Experimental program
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Effect test

Embodiment approach 1

[0137] First, refer to figure 1 , the circuit configuration of the air conditioning system 1 according to Embodiment 1 of the present invention will be described in detail.

[0138] Such as figure 1 As shown, the air conditioning system 1 of this embodiment includes an outdoor unit 100, a dehumidifying and heating indoor unit 200, and a refrigerant-water heat exchange unit 300. A plurality of connection pipes including the one connection pipe P1, the second connection pipe P2, and the third connection pipe P3 are connected to each other.

[0139] Here, stop valves VC1 to VC3 are provided in the middle of the first connection pipe P1, the second connection pipe P2, and the third connection pipe P3 (hereinafter, the range of the outdoor unit is also delimited by the stop valves VC1 to VC3). ). Under normal circumstances, the stop valves VC1-VC3 are all in a normally open state. In addition, in some cases, any one or more, or even all, of the cut-off valves VC1-VC3 may also...

Embodiment approach 2

[0174] First, refer to figure 2 , to describe the circuit structure of the air conditioning system 1A according to Embodiment 2 of the present invention, wherein, in figure 2 In , the same reference numerals are given to the same components as those in Embodiment 1 described above.

[0175] In addition, since the air-conditioning system 1A of Embodiment 2 is basically the same as the air-conditioning system 1 of the above-mentioned Embodiment 1 in terms of configuration, differences from the above-mentioned Embodiment 1 will be mainly described below.

[0176]In this embodiment, the outdoor unit 100' includes a four-way switching valve VF1 (equivalent to the first switching device in the present invention), and the four-way switching valve VF1 can switch between the first switching state and the second switching state, Among them, in the first switching state of the four-way switching valve VF1, the first connecting pipe P1 communicates with the discharge pipe Po and the se...

Embodiment approach 3

[0199] First, refer to image 3 , to describe the circuit structure of the air conditioning system 1B according to Embodiment 3 of the present invention, wherein, in image 3 In , the same reference signs are attached to the same components as those in Embodiment 2 above.

[0200] In addition, since the air-conditioning system 1B of Embodiment 3 is basically the same as the air-conditioning system 1A of the above-mentioned Embodiment 2 in terms of configuration, differences from the above-mentioned Embodiment 2 will be mainly described below.

[0201] In this embodiment, an end (located at the image 3 The end at the midpoint K13) the first outdoor branch pipe P101 connected to the suction pipe Pi.

[0202] And, the third connecting pipe P3 has a first part P3-1 (from image 3 The part from point K11 in the following four-way switching valve VF2 to the port a1 of the following four-way switching valve) and the second part P3-2 (from the port b1 of the following four-way swi...

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Abstract

The invention discloses an air conditioning system and a control method thereof. The air conditioning system can provide fluid which is fully dehumidified and heated for the indoor space in an energy-saving mode and has the function of providing hot water. The air conditioning system comprises an outdoor unit, a dehumidifying and heating indoor unit and a refrigerating fluid water heat exchange unit, wherein the outdoor unit, the dehumidifying and heating indoor unit and the refrigerating fluid water heat exchange unit are connected through a first connecting pipe, a second connecting pipe and a third connecting pipe; one end of the third connecting pipe is connected to a discharge pipe connected to the discharge side of a compressor, the dehumidifying and heating indoor unit is provided with a second indoor side pipe, a second indoor side refrigerating fluid adjusting device and a second heat exchanger are arranged in the middle of the second indoor side pipe, and the other end of the third connecting pipe is connected to the other end of the second indoor side pipe; and the refrigerating fluid water heat exchange unit is provided with a refrigerating fluid pipe, a water loop and a refrigerating fluid water heat exchanger, one end of the refrigerating fluid pipe is connected to the first connecting pipe, and the other end of the refrigerating fluid pipe is connected to the third connecting pipe.

Description

technical field [0001] The present invention relates to an air-conditioning system and a control method thereof, in particular to an air-conditioning system including an outdoor unit and a dehumidifying and heating indoor unit and a control method thereof. Background technique [0002] With the improvement of people's living standards, people's demand for living environment control has become increasingly prominent. Therefore, the function of the air conditioning system has gradually developed from a single temperature adjustment to a diversified development. In humid and rainy areas and during the rainy season, the humidity of the air is high, causing discomfort to the human body. Therefore, an air-conditioning system with a humidity control function has emerged as the times require. [0003] Air conditioning systems typically dehumidify by passing air through a heat exchanger whose surface temperature is below the dew point of the air, causing the air to condense and there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F24F11/02F25B41/20
CPCF25B13/00F25B2313/003F25B2313/007F25B2313/0231F25B2313/02331F25B2313/02334F25B2313/02343F25B2313/0253F25B2313/02742F25B2400/13
Inventor 冈本敦潘鑫道
Owner DAIKIN IND LTD
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