Method and device for detecting temperature sensor of multi-line system and its outdoor heat exchanger
A multi-connected system and outdoor heat exchanger technology, applied in the field of multi-connected systems, can solve problems such as room temperature fluctuations, frosting and defrosting, abnormalities, etc., and achieve reliable operation
Active Publication Date: 2019-07-26
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
In order to cope with complex cold and heat load conditions, the outdoor heat exchanger adopts a block layout. In the mixed mode, only part of the heat exchange area may be required. Therefore, two temperature-sensing bulbs are set in the outdoor heat exchanger. However, when Failure of the temperature sensing package, or misplacement of the temperature sensing package during maintenance, may lead to abnormal frosting and defrosting, causing severe fluctuations in room temperature
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[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0029] The method for detecting the temperature-sensing bulb of the outdoor heat exchanger in the multi-line system, the device for detecting the temperature-sensing bulb of the outdoor heat exchanger in the multi-line system and the multi-line system with the device will be described below with reference to the accompanying drawings.
[0030] figure 1 It is a flow chart of a method for detecting a temperature sensing package of an outdoor heat exchanger in a multi-line system according to an embodiment of the present invention. ...
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The invention discloses a multi-split system and a method and device for detecting temperature sensing bulbs of an outdoor heat exchanger of the multi-split system. The method for detecting temperature sensing bulbs of the outdoor heat exchanger of the multi-split system has the following steps: after the multi-split system is controlled to operate in a pure refrigeration mode or a pure heating manner, the outdoor heat exchanger is controlled to be in a full open state, and an outdoor draught fan is controlled to operate at a first preset air speed; after delaying for a first preset time, the temperature of the first temperature sensing bulb and the temperature of the second temperature sensing bulb are obtained and denoted as a first temperature value and a second temperature value correspondingly; a heat exchange unit corresponding to any one of the first temperature sensing bulb and the second temperature sensing bulb is controlled to be in the closed state, and after delaying for a second preset time, the temperature of the first temperature sensing bulb and the temperature of the second temperature sensing bulb are obtained again and denoted as a third temperature value and a fourth temperature value; and whether the first temperature sensing bulb and the second temperature sensing bulb are abnormal or not is judged according to the first temperature value, the second temperature value, the third temperature value and the fourth temperature value. In this way, effective detection of the temperature sensing bulbs is achieved, and it is guaranteed that the system can reliably operate.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method for detecting a temperature-sensing package of an outdoor heat exchanger in a multi-connected system, a device for detecting a temperature-sensitive package of an outdoor heat exchanger in a multi-connected system, and a device with the detection device Multiple online systems. Background technique [0002] The multi-connected system can realize the cooling and heating functions at the same time. In the mixed mode, the heat is transferred from the area that needs cooling to the area that needs heating, thereby reducing the work of the compressor and avoiding waste of resources. The system has a high energy efficiency ratio . [0003] In the multi-line system, the outdoor heat exchanger is generally a whole piece, and a temperature sensing bulb is usually placed in the middle or outlet of a certain flow path of the heat exchanger to balance the thickness of fros...
Claims
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IPC IPC(8): F24F11/61F24F11/67F24F11/77F24F3/06F24F110/12
CPCF24F3/065F24F11/30F24F11/62F24F11/64F24F11/65F24F2110/00F24F2110/10F24F2110/12F24F2140/20Y02B30/70
Inventor 易德波汤昌靖
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD