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Air conditioning ventilation system

A ventilation system and air-conditioning technology, which is applied in the direction of air-conditioning systems, control/regulation systems, general control systems, etc., and can solve problems such as insufficient refrigerant discharge

Active Publication Date: 2022-05-06
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This prevents the leaked refrigerant from accumulating in the air-conditioned space, resulting in insufficient discharge of the refrigerant.

Method used

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  • Air conditioning ventilation system
  • Air conditioning ventilation system
  • Air conditioning ventilation system

Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0099] In the air-conditioning ventilation system S of Modification 1, an auxiliary fan 60 that assists air supply and exhaust by the ventilation device 30 may be provided separately from the ventilation device 30 . Figure 6 is provided with such an auxiliary fan 60 figure 1 It is an explanatory diagram of a refrigerant piping system and an air system of a modified example of the air-conditioning ventilation system S shown. in addition, Figure 7 yes means Figure 6 It is a block diagram showing the structure of the central controller of the air conditioning and ventilation system and the control parts of the outdoor unit, indoor unit, ventilation device, remote controller and auxiliary fan. Figure 6 as well as Figure 7 In, respectively, with figure 1 as well as figure 2 Elements or structures shown are common to elements or structures marked with figure 1 as well as figure 2 The same reference numerals are used, and descriptions thereof are omitted for simplificat...

Deformed example 2

[0112] In the air-conditioning and ventilation system S of Modification 2, it is also possible to Figure 5 In the control of the control, at least one of the air supply air volume and the exhaust air volume is below the lower limit, and before the operation of the air conditioner A is set to a stop state, a "forecast alarm" is issued to let the service personnel and users know that the ventilation air volume has decreased. The timing at which the advance warning is issued may be the same as the timing at which the operation of the auxiliary fan 60 is started in the first modification. That is, the CPU 361 of the control unit 36 ​​may determine that at least one of the air supply air volume and the exhaust air volume of the ventilator 20 is larger than the first predetermined value (the lower limit air supply air volume, the lower limit exhaust air volume) and is greater than the first predetermined value. The case where the value is less than or equal to the second predetermi...

Deformed example 3

[0115] In the air-conditioning and ventilation system S of Modification 3, the supply air volume detection unit 37 and the exhaust air volume detection unit 38 may be the power consumption of each motor (not shown) that operates the supply air fan 34 and the exhaust fan 35 . A sensor for measuring electricity. When a power consumption sensor is used, the wind volume equivalent value may be, for example, an electric power value corresponding to power consumption. When the power consumption sensor is used as the supply air volume detector 37 and the exhaust air volume detector 38 , the following data are stored in the storage unit 362 in advance as the supply air target air volume and the exhaust target air volume. Specifically, the storage unit 362 stores in advance data associating the rotation speed of the air supply motor at a plurality of stages for realizing the air supply target air volume and the electric power value corresponding to the rotation speed. In addition, the...

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PUM

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Abstract

An air-conditioning ventilation system (S) is provided with: an air-conditioning device (20) having a heat exchanger (22) for generating conditioned air by heat exchange with a refrigerant; a ventilation device (30) which is communicably connected to the air conditioning device (A) and which has an air supply fan (34) and / or an air discharge fan (35); an air volume detection unit (37, 38) that detects an air volume equivalent value of the ventilation device (30); and a control unit (36). When the control unit (36) determines that the air volume equivalent value acquired from the air volume detection units (37, 38) is equal to or less than a first predetermined value, the operation of the air conditioning device (A) is stopped.

Description

technical field [0001] The present disclosure relates to an air conditioning ventilation system. More specifically, it relates to an air-conditioning ventilation system including an air-conditioning device and a ventilation device. Background technique [0002] In relatively large buildings such as office buildings and hotels, an air conditioner for generating cool and warm air and a ventilator for supplying outside air to a room and exhausting the room are generally used in combination. [0003] If the refrigerant leaks from the air conditioner into the room, problems such as lack of oxygen may occur. In order to suppress the occurrence of such troubles, conventionally, it has been proposed to operate the ventilator when refrigerant leakage is detected (for example, refer to Patent Document 1). [0004] In the air-conditioning and ventilation system described in Patent Document 1, if a refrigerant leak is detected in a state where the air-conditioning device and the venti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0035F24F5/00F24F11/36F24F11/52F24F11/54F24F11/72F24F11/77F24F11/88
CPCF24F1/0035F24F5/001F24F11/36F24F11/52F24F11/54F24F11/72F24F11/77F24F11/88F25B49/02F24F2140/10F24F11/70G05B2219/2614
Inventor 平井浩介山本昌由酒井岳人藤本徹松木义孝
Owner DAIKIN IND LTD