Cleaning and maintenance methods of industrial central air conditioners

The application scope of industrial central air conditioning includes: commercial plazas, conference centers, hotels, hospitals and other large places. The industrial central air conditioner adopts the ducted air supply method. One main unit can control several different rooms and bring in fresh air. It can effectively improve indoor air quality, prevent the occurrence of air-conditioning diseases, and achieve the effect of energy saving. In order to ensure the normal use of the industrial central air-conditioning system, cleaning and maintenance work must be carried out in time. Next, the common cleaning methods and maintenance precautions of industrial central air conditioning systems are introduced. The commonly used physical cleaning method is to pass the host through the spray gun, that is, through the compressed air or manually through the punch rod, rubber plug, nylon brush or round steel and other tools through the tube of the heat exchanger to remove the accumulation or blockage in the tube. Open the end cover of the main unit, spray the copper pipes one by one with the gun pliers, remove the biological mud and rust on the pipe wall, and rinse with high pressure water after the gun pliers. Then, thoroughly remove all rust and oxide scale on the side of the water chamber and the inner wall of the end cover, and brush the anti-rust paint twice to remove rust, rust, scale, and scale. A cleaning method that dissolves, loosens, drips, or peels off substances accumulated in cleaning equipment through the action of chemical agents. Commonly used chemical cleaning methods include acid cleaning, alkali cleaning, complexing agent cleaning, sterilization cleaning, etc. Chemical cleaning is generally used to remove hard scale from equipment and piping, and deposits from elbows and joints. Using a professional single-cycle cleaning method, adding organic acid complexing agent and high-efficiency corrosion inhibitor, the corrosion of copper pipe is 10 times lower than that of inorganic acid, which can quickly remove scale and rust at the root of the effective maintenance equipment. The pretreatment of copper pipes after cleaning can greatly delay the corrosion rate of the equipment. Open the suction grill, press and hold the two buttons, and pull down slowly at the same time, drag the hook on the air filter to pull it out diagonally downward, take out the filter, cleaning method: use a vacuum cleaner to remove dust, or use clean water or Wash with lukewarm water, when there is too much dust, use a soft-bristle brush and a neutral detergent, after cleaning, shake off the water and dry in the shade. Remember not to rinse with hot water above 50°C to avoid discoloration or deformation; do not dry on fire, the filter may catch fire, and the air filter must be installed after cleaning. Hang the air filter on the upper raised part of the suction grille, and then fix it on the suction grille; slide the lug on the back of the suction grille inward, install the air filter on the suction grille, and then close the suction grille grid. Contrary to step 1, press the 'filter signal reset' button on the control panel, the central air conditioning cleaning warning sign will disappear. If there is too much dust in the use environment, the air filter should be cleaned for about half a year.

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Further dialogue of Jingliang between the approaches, the chapter concludes, could lead to actionable advice on more robust policies that drive both structural change and competitiveness upgrading.