Product Description
Connaught Beijing Heng Xin Electrical and mechanical equipment Technology Development Company Limited is a multi-year commitment to install central air-conditioning refrigeration equipment, energy saving, operation, repair, maintenance, custody of central air conditioning units and ancillary terminal equipment cleaning services, industrial equipment cleaning services company.
Air conditioning equipment and its system value is relatively expensive, how to effectively play the role of air conditioning, make its efficient, safety, economic operation, the routine maintenance is necessary; periodic maintenance may be discharged from the hidden fault, reduce the accident, reduce operation cost, prolong the service life of the equipment, at the same time, ensure the normal work sequence.
1, air conditioning and refrigeration system:
First, the system operation for a period of time due to the vibration of the compressor will cause the pipe joints loosening or weld cracking, thereby causing the refrigerant and the refrigerant oil leakage, leakage can cause slight refrigerating effect is reduced, low pressure alarm. If severe, can make compressor due to lack of cooling and lubrication. The last cause compressor overheat, strain burned.
II, air conditioning compressor after the initial running-in running after a period of time, due to the friction between the moving mechanical parts, lubricants may be deposited under wear impurities, so that the lubricating oil effect is reduced, long-term use will aggravate the wear of moving parts or strain, until the compressor burned.
2, air conditioning wind system:
First, the wind system operation after a period of time will accumulate dust filtering net, increased air resistance, which caused the volume is reduced or blocked; volume is reduced by fan coil effect is not good, even without any effect, affecting the normal use. Especially the wind pipe machine, variable air volume, combined type air conditioner is very easy to cause the motor burned the serious consequences;
II, fan coil due to a primary filter net on tiny dust can not be filtered down, therefore, dust in the filter accumulate in the fan coil heat exchanger finned surface heat exchanger fins, because only 2-3mm, hence the term accumulation will cause blockage, resulting in reduced, at the same time because of the dust accumulation caused by heat drop, serious when can cause the phenomenon.
In 3, the electrical system:
First, air conditioning after long-term operation, because the wires, heating and other reasons can cause joint component loosening, shed, resulting in poor contact, lack of phase;
II, AC contactor, thermal relay will also appear poor contact, open circuit and other faults;
The above fault if not timely exclusion will cause the compressor phase or three-phase current imbalance and burned;
Thirdly, flow switches, high and low voltage switch, safety valve protection device caused by the failure of the accident.
4, air conditioning water system:
First, cooling water system for open type system, cooling water through the cooling tower is fully contact with air, while being cooled will also air the large amount of dust and other impurities are introduced into a water system, deposited in the cooling tower, the air conditioning unit and pipeline in the formation of silt, reducing the cycle of water, effect of heat exchange.
Secondly, the system put into use, for the installation of residues within the system of welding slag, iron, clay, oil and other impurities will accumulate in the system; welding slag, iron and other hard materials are attached in the heat exchanger surfaces, effect of heat transfer.
The cooling water and air contact, because, in the cooling tower and the pipeline will breed algae, bacteria and other microorganisms, after the death of his body and mud, oil and other debris adhered together, attached to the equipment and pipeline, effect of circulating water and heat transfer, at the same time, microbial and deposition of produce, promote concentration cell corrosion formation and corrosion under the scale of production, so that the metal corrosion rate increased. Chilled water system with water through the water tank is often used for water, will produce the above phenomenon.
The higher water temperature, cooling water system, and uses the water, the Ca2 +, Me2 + ion heating after the formation of carbonate scale, attached to a heat equipment and pipeline due to scale, the thermal conductivity of 0.464 ~ 0.697W / M.K, the coefficient of thermal conductivity of carbon steel was 46.4 ~ 52.2W / M.K, only the 1% carbon steel, to reduce the heat exchange equipment effects of heat transfer caused by increased, running cost.
The effect of air conditioning, frequent alarms, charge of electricity increased; serious can cause the pipe and heat exchanger jam, parts of the equipment is corrosion caused by unit, component damage, shortened service life of equipment, for the user to draw great loss. Therefore, regular water quality testing and chemical cleaning maintenance is necessary.
