Control device and control method of condenser online cleaning equipment and central air conditioner

Abstract

The invention discloses a control device and a control method of condenser online cleaning equipment and a central air conditioner. The control device of the condenser online cleaning equipment comprises a temperature sensor and a controller, wherein the temperature sensor is used for detecting the water draining temperature at a water outlet of the condenser, the controller is used for sending an instruction of starting the online cleaning to the condenser online cleaning equipment when the temperature difference between the water draining temperature of the condenser and the condensing temperature of a refrigerant flowing through the condenser is greater than or equal to a first preset temperature difference threshold value. The cleaning device has the advantage that the running of the condenser online cleaning equipment is automatically started by monitoring the actual running parameters, so the amount of dirt of the condenser is controlled within certain range, and higher heat transfer efficiency is guaranteed.

Description

technical field [0001] The invention relates to a central air-conditioning system, in particular to a control device and a control method for condenser online cleaning equipment. Background technique [0002] With the development of my country's urbanization process, more and more large-scale public buildings and residences use central air-conditioning systems for heating and cooling, and the fouling state of the condenser in the central air-conditioning system is very important for the efficient operation of the refrigeration host. [0003] The condenser is the outdoor heat exchanger. The condenser is installed between the compressor discharge port and the throttling device (capillary or electronic expansion valve). The high-temperature and high-pressure gas (refrigerant) discharged from the air-conditioning compressor enters the condenser, and is cooled by copper tubes and aluminum foils, so that the pressure of the refrigerant remains unchanged during the cooling and con...

AI Technical Summary

Problems solved by technology

[0007] Condenser fouling is not well understood and therefore not effectively controlled using traditional methods

Moreover, the traditional method does not combine the monitoring of actual operating parameters to control the fouling state of the condenser

There may be a lot of dirt, but it has not been cleaned in time

It is also possible that the dirt is not too much and does not affect the heat exchange, so the cleaning is started too frequently, which causes a waste of energy, and may more or less affect the normal operation of the central air conditioning system

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