Coal fired steam Boilers in Kraft paper mills are used for process, electrical power, and economic reasons (in the Kraft process specifically). Most of Kraft paper factory prefer to quickly installed boilers for their production.
First, when the need for boiler sturdy class b price china pressure test? 1, the newly installed boiler when put into operation. 2, more than a year boiler outage and resume operation. 3, boiler, pressure member after significant repair or replacement, such as the number of water wall tubes in the replacement number of more than 50%, superheater, reheater, economizer other group member replacement, a significant repairs performed drum Time. 4, severe boiler overpressure 1.25 times the working pressure up to and above. 5, when a large heating surface area of the boiler water after severe deformation. 6, according to operation, safety and reliability of equipment operation when there is doubt. Second, the method of pressure testing a boiler water pressure test should be carried out when the ambient temperature is higher than 5 ℃, antifreeze measures must be less than 5 ℃. 2, the water pressure test should be maintained above the ambient dew point temperature, to prevent surface condensation boilers, water seepage and the like will not occur closely confusion, difficulty increases inspection; but it should not cause high temperature to prevent vaporization (so difficult to find the leak) and excessive temperature stress, usually 20 ℃ ~ 70 ℃. 3, the water is full, pressure is gradually increased to 0.4MPa, namely a tight check, if necessary, be tightened once the flange, and hand Manhole cover bolt hole. 4, water pressure test, pressure should slow down, when the pressure rises to the pressure of work, should be suspended boost, check for leaks or anomalies, and then boosted to the test pressure for 20 minutes, if the pressure It did not decline, that is, down to the working pressure checked. 5, find any leaks should cook the recording, in order to reduce the time to repair the atmospheric pressure.
Our company attaches great importance to the quality of wine, winemaking process steam requirements provided very strict, party fast boiler sturdy class b price china provides fully meet our needs, give us a brewery to provide strong support. --customer feedback
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