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Method and device for discharging condensate water for heating, ventilating or air conditioning system

A technology of air conditioning system and discharge device, which is applied in space heating and ventilation details, heating system, prevention of condensed water, etc., can solve the problem that condensed water cannot be discharged in time, and achieve the effect of improving reliability

Active Publication Date: 2013-05-08
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a condensed water discharge method and device, which can solve the problem that the condensed water cannot be discharged in time in the existing solutions, causing the heating, ventilation or air conditioning system to stop running, and improve the reliability of the system operation

Method used

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  • Method and device for discharging condensate water for heating, ventilating or air conditioning system
  • Method and device for discharging condensate water for heating, ventilating or air conditioning system

Examples

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Embodiment 1

[0046] An embodiment of the present invention provides a condensate discharge method for heating, ventilation or air conditioning systems, such as figure 1 As shown, the method includes the following steps:

[0047] Step 101, detecting the liquid level of the condensed water in the water receiving tray, which is used to collect the condensed water generated on the heat exchanger of the heating, ventilation or air conditioning system;

[0048] The detection of the liquid level of condensed water in the water receiving tray described in this step can be done by setting one or several float switches in the water receiving tray to detect different liquid level heights, specifically, the liquid level of the condensed water in the water receiving tray When it is higher than the height set by a certain float switch, the corresponding float switch is closed to generate a signal showing the liquid level height. In addition, a liquid level sensor can also be installed to detect the liqu...

Embodiment 2

[0084] An embodiment of the present invention provides a condensate discharge device for heating, ventilation or air conditioning systems, such as Figure 5 shown, including:

[0085] A water receiving tray 10 for collecting condensed water generated on the heat exchanger;

[0086] A liquid level detection device 20 for detecting the height of the condensed water level in the water receiving tray 10 is arranged in the water receiving tray 10;

[0087] The main drainage pump and the standby drainage pump for discharging the condensed water are arranged outside the water receiving tray 10 and communicated with the water receiving tray 10 through a pipe 13. In this embodiment, at least two drainage pumps are used 30. Select one of the drainage pumps 30 as the main drainage pump, and the remaining drainage pumps 30 as backup drainage pumps;

[0088] A controller connected to the main drainage pump, the backup drainage pump and the liquid level detection device 20 respectively, t...

Embodiment 3

[0097] Such as Figure 7 As shown, this embodiment also provides a condensate discharge device for heating, ventilation or air conditioning systems, which is different from the condensate discharge device in Embodiment 2. This embodiment uses two drainage pumps, respectively The drain pump 31 and the second drain pump 32, the liquid level detection device in this embodiment is three float switches, which are arranged in the water receiving tray, the liquid level height corresponding to the first float switch 21 is the preset low liquid level, and The liquid level corresponding to the second float switch 22 is the preset first high liquid level, and the liquid level corresponding to the third float switch 23 is the preset overflow liquid level. When the liquid level of the condensed water in the water receiving tray is above the preset low liquid level, the first float switch 21 is closed, otherwise it is disconnected; when the liquid level of the condensed water in the water r...

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Abstract

The invention discloses a method and device for discharging condensate water for a heating, ventilating or air conditioning system and relates to the field of heating ventilation air conditioning. The method and device solves the problem that the system stops operating due to the fact that a single water discharging pump is used, and the reliability of system operation is improved. The method for discharging the condensate water includes: detecting liquid level height of the condensate water in a water receiving plate, and the water receiving plate is used for collecting the condensate water generated on a heat exchanger; when the liquid level height of the condensate water is detected to be higher than a preset first high liquid level, a main water discharging pump is controlled to be opened to discharge water; and when time during which the liquid level height of the condensate water is higher than the preset first high liquid level is detected to exceed first preset time or the liquid level height of the condensate water is detected to be higher than a preset second high liquid level, a spare water discharging pump is controlled to be opened to discharge water, and the preset second high liquid level is higher than the preset first high liquid level.

Description

technical field [0001] The invention relates to the field of heating, ventilating and air conditioning, in particular to a method and device for discharging condensed water used in heating, ventilation or air conditioning systems. Background technique [0002] Condensate drains are required when heating, ventilation or air conditioning systems are in operation and condensate is produced on the system's heat exchanger, which falls down the heat exchanger and collects in the drip pan below the heat exchanger Drain the condensed water in the water tray in time, otherwise the accumulation of condensed water will cause a large number of bacteria to multiply and pollute the air; it will also affect the operation of electrical equipment. [0003] In the prior art, the condensed water discharge device is installed below the heat exchanger, and includes: a drain pan for collecting condensed water, two float switches, a drain pump and drain pipes. The float switch is fixed in the wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D19/08F24F13/22
Inventor 张广河
Owner HUAWEI DIGITAL POWER TECH CO LTD
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