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Fault detection and control method and device for water tray

A technology for fault detection and control methods, applied in heating and ventilation control systems, heating methods, lighting and heating equipment, etc., can solve problems such as inability to drain water, and achieve the effects of preventing frequent switching, preventing water leakage, and improving efficiency and accuracy

Active Publication Date: 2021-01-29
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a method for detecting and controlling the failure of the water tray to solve the problem of the consequences of being unable to drain due to two situations

Method used

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  • Fault detection and control method and device for water tray
  • Fault detection and control method and device for water tray
  • Fault detection and control method and device for water tray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Such as figure 1 As shown, it is; wherein, the water tray fault detection and control method includes:

[0076] Step 100, obtaining the water level of the water receiving tray in real time;

[0077] A water level sensor 2 is arranged in the water receiving tray to obtain the water level of the water receiving tray in real time, so as to facilitate subsequent judgment and operation according to the water level of the water receiving tray.

[0078] Step 200, judging whether the water level of the water receiving tray is greater than the first water level threshold;

[0079] Wherein, the first water level threshold is 2 / 3 of the highest water level of the water receiving tray, which is recorded as 2 / 3L, wherein, L represents the highest water level that the water receiving tray can contain or accommodate. If the highest water level is marked, the highest water level L in this application can be taken as the highest water level that the water receiving tray can hold (no m...

Embodiment 2

[0149] According to the above-mentioned water tray failure detection and control method, this embodiment is a corresponding water tray failure detection and control device, such as Figure 7 As shown, the water tray fault detection and control device includes:

[0150] Water level sensor 2, which is used to obtain the water level of the water receiving tray in real time;

[0151] A controller 1, which is used to judge whether the water level of the water receiving tray is greater than the first water level threshold;

[0152] If so, the controller 1 controls the air-conditioning unit to shut down;

[0153] If not, it is judged whether the water level of the water receiving tray is greater than the second water level threshold;

[0154] If so, the controller 1 controls the air conditioner unit to perform the ice melting operation according to the temperature of the inner tray and the temperature of the water receiving tray.

[0155] In this way, the water level of the water ...

Embodiment 3

[0157] The difference between this embodiment and the above-mentioned water tray fault detection and control device is that the controller 1 is also used for:

[0158] After the first preset time, it is judged whether the water level of the water receiving tray is less than or equal to the second water level threshold;

[0159] If not, accumulating the number of ice melting operations once, and judging whether the number of ice melting operations is greater than three times;

[0160] If the number of ice melting operations is greater than three times, the controller 1 clears the number of ice melting operations and controls the air conditioning unit to stop;

[0161]If the number of deicing operations is less than or equal to three times, the controller 1 controls the air conditioning unit to perform deicing operations according to the temperature of the inner tray and the temperature of the water receiving tray.

[0162] In this way, through the accumulation of three consecu...

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Abstract

The invention provides a water pan fault detection and control method and device. The water pan fault detection and control method comprises the steps that the water level of a water pan is obtained in real time; whether the water level of the water pan is greater than a first water level threshold value or not is judged; if yes, it is judged that the water pan is blocked by foreign matter, and anair conditioning unit is controlled to be shut down; if not, whether the water level of the water pan is greater than a second water level threshold value or not is judged; and if yes, the air conditioning unit is controlled to conduct deicing operation according to the internal pan temperature and the water pan temperature. According to the water pan fault detection and control method, whether adrainage nozzle of the water pan is blocked by the foreign matter or not can be judged through the water level of the water pan, whether the drainage nozzle of the water pan is blocked by icing of condensed water or not can be further judged through the water level and the temperature of the water pan, thus blockage of the drainage nozzle can be judged or found in time, corresponding measures areadopted, and thus the consequences such as water leakage due to the fact that drainage cannot be conducted are prevented.

Description

technical field [0001] The invention relates to the technical field of air-conditioning control, in particular to a water tray fault detection and control method and device. Background technique [0002] Rooftop machine is a device that is installed on the roof and directs quality control and centralized treatment of air to confined spaces, rooms or areas through air ducts. It mainly includes refrigeration systems, air circulation and purification devices, and can also include heating, humidification and ventilation devices. [0003] Since the unit is installed on the roof and outside the outdoors, some areas have low-temperature cooling requirements, that is, the unit needs to achieve cooling operation under low-temperature conditions. The other situation is that due to the harsh external environment, due to the large wind and sand and many sundries, foreign matter may enter the unit and cause the drain nozzle to block. [0004] Both of these situations will lead to the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/61F24F11/67F24F11/38F24F11/871F24F11/86F24F11/70
CPCF24F11/38F24F11/61F24F11/64F24F11/67F24F11/70F24F11/86F24F11/871
Inventor 刘志财秦宪谭双陈威宇
Owner NINGBO AUX ELECTRIC