Large water-cooled central air conditioning cleaning (central air conditioning water machine cleaning quotation table)

What parts do large water-cooled central air conditioners need to be cleaned? If you want to know today, Xiaobian will explain to you, the content is as follows:

1, large water-cooled central air conditioning cleaning 1, indoor unit heat exchanger cleaning

The embodiment of central air conditioning in the structure is that a host can drive multiple indoor units, and the indoor units can be directly hidden by the ceiling, which can save space and supply air more evenly. Some of the indoor units in my partner's home choose the ceiling, and some are directly exposed! It can be said that the indoor unit structure of the central air conditioning and the indoor unit structure of the household split air conditioning are not much different.

First: Clean the indoor unit

The second step: clean the Y-type filter element. 2. Clean the condenser of the water-cooling main engine

The central air conditioning condenser is very easy to scale, and daily water treatment should be done normally in the summer cooling period. Otherwise, when operating in the environment of high hardness water quality, the inorganic salts dissolved in water in the circulating water system will crystallized out with the increase of temperature, forming scale on the tube wall of the condenser heat exchange surface, resulting in reduced heat exchange efficiency. At the same time, the hard scale increases, the energy consumption increases, and the hard scale increases by 6~10 when it is 1mm thick. Due to the water of soil, sediment, humus constitute dirt, plus bacteria, algae and other microorganisms

The biological slime composed of its secretions will adhere to the wall of the condenser heat exchange tube to form dirt, which will form the unclean item of the pipeline when severe, and AK 'yifun double rate in the cloud D condition, which consumes more power, forming high pressure operation, and forming overpressure shutdown when severe. All these seriously affect the normal operation of the condenser. Condenser cleaning is divided into physical

Cleaning and chemical cleaning, physical cleaning generally use high pressure water jet to sort out the dirt of the condenser copper pipe; If the scale is hard scale, chemical cleaning should be carried out, and the scale can not be removed by physical means.

In order to make the condenser operate in an optimized state, special chemical treatment must be carried out on the condenser to remove scale.

Rust, mud, sterilization and prevention

Corrosion treatment, reduction to a clean metal surface.

Operation process:

(1) Close the inlet and outlet water valve, open the drain valve, and check the closure of the inlet and outlet water valve.

(2) Open the end cover of the condenser, take a little scale on the surface of the copper pipe, and do the descaling experiment with different concentrations and ratios of descaling agents. 

(3) Press the method of low into high, and correctly connect the cleaning pump.

(4) Use an external pump to fill the bucket with water and start the cleaning pump cycle to a stable level.

(5) Slowly add YX-22 detergent to the bucket in stages. After circulation, rinse with tap water repeatedly until PH value is about 7. (6) Wash the pump with tap water.

(7) Turn over the preliminary cover using Yaxin full active gun machine for gun opening. (a) Physical cleaning

1.1 The physical gun of the main engine is suitable for the equipment with severe blockage of sand and rust in the water pipeline, such as the equipment with severe blockage must be physically fired before chemical cleaning.

1.2 Close the inlet and outlet water valve, open the drain valve, check the closed condition of the inlet and outlet water valve, and clean the water in the heat exchanger. 1.3 Open the end cover of the part that needs to be sorted out, take photos, and take scale samples for analysis.

1.4 Clean the copper pipe using Yaxin active gun machine, high pressure water gun, dredging rod and other things. 1.5 Clean the scale layer in the water room, brush anti-rust paint, paint dry, photography.

1.6 The inspection standard is that the copper pipe is not blocked, and the sediment cleaning rate is 95%

1.7 Disassembly part recovery, pressure test without water leakage.

(b) Chemical cleaning

The selection of a professional single cycle cleaning method, with efficient detergent, the corrosion of copper pipe is ten times lower than that of inorganic acid, and it can quickly remove scale and rust on the basis of useful maintenance equipment. The pre-film treatment of the copper pipe after cleaning can greatly delay the corrosion rate of the equipment.