Multistage boiler pump maintenance measures

Modern boilers and water pump fault maintenance operation efficiency is the focus of the screen. For equipment fault prevention and daily maintenance, must control the minimum flow valve, in the process of the operation of the feed water pump, ensure the normal operation of the water pump and security maintenance.

      ( 1) First to establish a scientific and reasonable system security system and maintenance system, based on multistage boiler plus water water pump operation of scientific guidance, for parts of equipment operation fault make levels of the division, detailed records, for abrasion of classify analysis, ensure to maintenance to improve the service life. Prepare timely inspection and replacement, make the whole unit can normal operation. To strengthen the maintenance of feed water pump of the lubricating system, check the number of lubricating oil is maintained in the normal level, to regular maintenance and inspection of bearing, ensure the normal operation of the bearings, not because of the wear failure. Before to check the lubrication equipment, but also to ensure the safety of the lubricating oil quality, oil, to add the mouth clean, prevent caused by impurities into the system in the process of adding paralyzed, damaged bearing operation.

       ( 2) For boiler equipment routine maintenance, should pay attention to add water pump system of pipeline inspection, avoid pipeline jam, and prevent leak happens in the outside of the tube antirust coating, etc. , this part in the event of a flake, easy to leak, therefore, spray paint processing is very necessary, on a regular basis to ensure that the pipeline anticorrosive, ensure unimpeded, improve the working efficiency of the boiler feed pump. In for maintenance at the same time, but also for water treatment system of regular check, ensure the safety of the system from the source.

       ( 3) For air leakage failure of screening and processing, technical personnel with sealing sleeve sealing, at the start of the next to vent coupler top cover plate for welding operation, the vacuum filters oil machine entrance received coupled tubing outlet pipe bottom row, strapped up opening, forming oil filter circuit structure. For high pressure water due to pressure is too small can't into the bearing chamber, using tighten seal ring on the outside of the sleeve and keep a breathing hole leakage. Welded stainless steel pipe ( Is about 15 mm length, diameter of about 45 mm) , end and stainless steel pipe welding hard links, supplemented by ptfe gaskets for bedding. According to the principle of design, in a sealed state water cannot be into the bearing chamber, even a small seal water leakage also belong to normal. But there are serious water leakage under the seal of the case, the causes of this situation, it is may be due to seal water supply pressure is too large, coupled with high temperature to form water vapor with high pressure into the bearing chamber mixed with oil; And one possibility is that the sealing water valve performance is poor no differential pressure for accurate measurement, back water increase with no alarm in time, resulting in a large number of backwater didn't get timely treatment.

       ( 4) Workers found in the inspection, multistage boiler with water pump in the water exhaust device suction light, easy to cause the internal pressure. After the research from the design drawing, explanation may be, this is due to the design phase of the design of the water seal structure, there are serious defects of the original multi-stage water seal arrangement in the computer room on the ground, and export pipeline position in more than 2 m, but return pipe elevation less than lm, the probability of forming negative pressure in the process of drainage is very big. Lead to water cannot be smoothly inhale exhaust device, the leaking water discharge to the gutter, causing the waste a lot of salt water. Multistage pump can be designed for level 4 series structure, to ensure that the multistage pump total height is higher than the vacuum water column height inside the exhaust system, avoid rabbit design is too simple, causing poor stability of water seal, for example, each level of the degree of less than 2 m, once the first level water seal is broken, the rest of the water seal will not immune, multistage pump failure screening and processing, to ensure that resistance to gas drainage for the purpose to air partition in multistage water above the water, smooth will seal water suction exhaust, and keep the balance between them, so that a water at the bottom of the multistage water wind can flow into the exhaust steam device.

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