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How to properly maintain and maintain the hot water boiler?

2020-10-23 09:14    page view:

Guide: Hot water boiler is a common boiler model in our lives. Its main purpose is for winter heating and industrial use, just like steam boilers.

  Hot water boiler is a common boiler model in our lives. Its main purpose is for winter heating and industrial use. Like steam boilers, it is a common boiler product. There are many kinds of fuels used in hot water boilers. Generally speaking, gas-fired hot water boilers, oil-fired hot water boilers, electric heating hot water boilers, coal-fired hot water boilers, etc. are common. However, with the strengthening of the country's environmental policy, coal-fired hot water boilers have been gradually banned. The common hot water boilers on the market now include gas-fired hot water boilers, oil-fired hot water boilers, and electric heating hot water boilers.

  When we use the boiler for a long time, we must also pay attention to the repair and maintenance of the boiler. How to carry out the regular maintenance of the hot water boiler?

  Hot water boiler maintenance:

  1. The following points should be paid attention to during the operation of the hot water boiler:

  ⑴. It is not allowed to burn with smoke and positive pressure in the furnace, because it is easy to burn out the coal injection door, the fire door and the curved protective pipe bricks.

  ⑵. If the induced draft fan vibrates violently, it should be stopped for inspection. Generally, it is caused by the wear of the internal impeller and should be replaced.

  ⑶. No water can accumulate on the ground at the bottom of the hot water boiler to prevent moisture from corroding the base.

  2. The hot water boiler runs for 2-3 weeks and should be checked once.

  ⑴. Observe the fire holes from the upper two parts of the back of the hot water boiler to remove the dust on the upper part of the flue of the two wings.

  ⑵. Open the front smoke box and the rear inspection hole. If there is dust accumulation in the smoke pipe, it should be removed. If there is no dust accumulation, the opening time can be extended later, once a month, if there is still no dust accumulation, it can be extended to 2-3 Open it once a month. At the same time, check whether the smoke box is tightly closed and whether there is any leakage at the end of the smoke pipe.

  ⑶. Properly tighten the V-belt of the induced draft fan to prevent slippage during operation and reduce the wear of the belt caused by the air volume and pressure.

  ⑷. Leakage at the joints of valves and pipe flanges should be repaired.

  3. After the operation of the hot water boiler every 3-6 months, the boiler should be shut down for a comprehensive inspection and maintenance. In addition to the above 2 tasks, the following tasks must be performed:

  ⑴. Remove the scale and sludge inside the drum, the water wall and the left and right headers, and rinse them with clean water.

  ⑵. Remove the soot and soot on the fire surface of the water wall pipe and the drum.

  ⑶. Check whether there is corrosion inside and outside the welded steel plate of the boiler. If there is a serious defect, it should be repaired immediately. If the defect is not serious, it can be left for repair at the next shutdown of the furnace. If a suspicious point is found, it does not affect the safety production. , Should be recorded for future reference.

  ⑷. Boiler paint can be painted on the fire surface after inspection to prevent corrosion.

  ⑸. Check whether the rolling shaft of the induced draft fan is normal, and the degree of wear of the impeller and casing.

  ⑹. If necessary, remove the furnace wall, outer cover, moisture layer, etc. for thorough inspection. If any severely damaged parts are found, they must be repaired before they can continue to be used. At the same time, the inspection results and repair conditions are entered into the boiler operation registration. book.

  4. Long-term maintenance methods for hot water boilers: there are dry and wet methods. If the boiler is stopped for more than one month, dry maintenance should be used, and wet maintenance can be used for less than one month.

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