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Multi-fan cooling tower control method, cooling tower and air conditioner

A cooling tower control and multi-fan technology, which is applied in the field of cooling towers, air conditioners, and multi-fan cooling tower control, can solve the problems of poor adjustment effect and high energy consumption, and achieve the effect of low production cost and fast and accurate adjustment of outlet water temperature

Active Publication Date: 2020-08-11
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In order to solve the defects of poor adjustment effect and high energy consumption of existing control methods, the present invention proposes a multi-fan cooling tower control method, cooling tower and air conditioner

Method used

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  • Multi-fan cooling tower control method, cooling tower and air conditioner
  • Multi-fan cooling tower control method, cooling tower and air conditioner
  • Multi-fan cooling tower control method, cooling tower and air conditioner

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Embodiment Construction

[0028] Such as figure 1 Shown, the multi-fan cooling tower control method that the present invention proposes, comprises the following steps:

[0029] Step 1. Detect the actual outlet water temperature t of the cooling tower c , get the current ambient wet bulb temperature t w ;

[0030] In a preferred embodiment, the sampling time T is preset at each interval 1 Detect the actual outlet water temperature t of the cooling tower c And get the current ambient wet bulb temperature t w , preset sampling time T 1 is the sampling period, and its value can be set according to the actual situation, such as 5min, 10min, etc. Actual outlet water temperature t c Through the detection of the temperature sensor, the current ambient wet bulb temperature t w Monitor the outdoor relative humidity and dry bulb temperature in real time through the temperature and humidity sensor, and calculate the current ambient wet bulb temperature t according to the outdoor relative humidity and dry b...

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Abstract

The invention discloses a multi-fan cooling tower control method, a cooling tower and an air conditioner. The multi-fan cooling tower control method comprises the following steps that the actual wateroutlet temperature tc of the cooling tower is detected, the current environment wet bulb temperature tw is acquired, the middle temperature interval is calculated according to the current environmentwet bulb temperature tw, and the actual water outlet temperature is compared with the middle temperature interval; when the actual water outlet temperature is higher than the middle temperature interval, whether all fans are in an open state or not is judged, if yes, the air speed of the fans are increased, or otherwise the running number of the fans is increased; and / or when the actual water outlet temperature is lower than the middle temperature interval, whether all the fans are at the lowest air speed or not is judged, if yes, the running number of the fans is reduced, or otherwise, the air speed of the fans is reduced. According to the multi-fan cooling tower control method, the cooling tower and the air conditioner, the advantages of being accurate in adjusting effect, simple to control, prominent in energy-saving performance, low in production cost and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a multi-fan cooling tower control method, a cooling tower and an air conditioner. Background technique [0002] A cooling tower is a device that directly cools a coolant or a brine, and is widely used in HVAC, chemical, electric power and other fields. The cooling tower uses a fan to form forced flow of air to exchange heat with the coolant or the refrigerant, so that the coolant or the refrigerant is reduced to the target temperature, and the heat is taken away by the air. The cooling capacity and energy efficiency of cooling tower operation have a significant impact on the performance of the entire cooling system. [0003] Existing cooling towers have a variety of cooling tower fan control methods. The common control method is to adjust the wind speed of the fan. The control method is relatively simple and cannot be flexibly adapted to various working conditions, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/77F24F11/74F24F11/64F24F140/20F24F110/10
CPCF24F11/64F24F11/74F24F11/77F24F2110/10F24F2140/20Y02B30/70
Inventor 卓明胜孙栋军王升王娟黎嘉辉
Owner GREE ELECTRIC APPLIANCES INC
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