2 ton rice husk fired steam boiler

Issues related to pressure test of the boiler 1, the boiler pressure test what? Boiler pressure test pressure test is divided into working overpressure test of two. Hydrostatic test purpose is to test the strength and tightness of the pressure member. After the pressure member is generally repair, such as repair or replacement of part of the valve, the boiler tubes, headers, etc., and the boiler, a small repair work should be carried out after the pressure test. After installation of the new boiler repair boilers and boiler to replace a large area of ​​the heating surface, the operating pressure should be 1.25 times the over-pressure test. 2, how to prevent the boiler pressure test overpressure? Operating a water pressure test is an important relationship between the safety of the boiler must be careful to note: should carefully check the pressure gauge into the situation before (1) pressure test. (2) to the exhaust air accident drainage gate power is turned on, flexible switch, exhaust, water discharge flow line. (3) Test should have Chief Engineer professionals in the field, or a command specified by the person controlling the boosting speed can not be midway substitutions. (4) from the boiler pressure, off a small inlet damper, controls the boost speed does not exceed 0.3MPa / min. (5) to boost the operating pressure of the boiler 70%, also due to slow speed boost, and make prevents overpressure safety measures. 3. What pressure test eligibility boiler? (1) when the door is completely closed from Sheung timing smin the pressure drop: not more than 0.2 a high-pressure boiler for qualified 0.3MPa, pressure in the boiler does not exceed 0.1 ~ 0.2MPa acceptable. Pressure boiler pressure drop is less than 98kPa qualified per minute. (2) pressure members, and the weld metal wall and no mist droplets. (3) no residual deformation of the pressure member signs.

Explosion reason a company szs Boiler tube 1, the general case where the defect causes, the heating surface tubes squib occur, mainly due to the metal wall than the level of stress due to material yield limit at the temperature of use. In operation water tube boiler tube szs mainly in the following aspects: (1) the quality of the boiler itself: as waterwall tube wall thickness and material problems; circulation unreasonable distribution, water wall tube heat exchanger disorders and the like; (2 ) inner heating surface fouling: difference in feed water quality, high hardness components, the inner tube fouling seriously hinder heat exchange tube of the heat exchanger; (3) the burner is provided: a bias furnace combustion flame, the direct flame flushing water wall, causing part of the water-cooled the wall temperature is too high, resulting in the squib; (4) operating failure: dry water, causing an imbalance in the furnace water cycle, water or a water partial power down, resulting in dry squib. 2, direct cause (1) the direct flame flushing water wall surface, resulting in heat concentration, so that a high thermal load side Water Wall, and subject to greater stresses; (2) so that the wall thinning flue gas erosion wear, high temperature corrosion, oxidation Paper warped, deterioration of the final material, a decrease in strength; and (3) quality is not up, the heat pipe scale, mass magnetization component adsorbed on the wall, the metal wall impact effective heating. From the above analysis we can see, because the multi-factor over temperature, corrosion, scale, and alternating stress contributed Wall squib leakage. After a company szs water boiler tube corrective measures (1) of the crater burner to transform the 45-degree burner throat flared original divergence angle transformation of the straight-shaped throat. Reduce diffuse flame burning in diameter, to reduce the intensity of direct flame scour the left wall of water wall; (2) to strengthen water quality management, improve the overall quality of water treatment workers and operational capacity, increase water quality laboratory tests; (3) water treatment update equipment, softened water to meet the water supply needs of the boiler, and to achieve "industrial boiler water quality" standards GB / T1576, improve heat transfer and water vapor circulating water wall, to protect the safe operation of the boiler. (4) water treatment operations personnel training, improve operations and laboratory analysis of water level.

Key hot water boiler installation and commissioning work: hot water boiler, its installation work, what is the key? And its commissioning work? Why raise these two issues, the main reason is that, through these two issues, we continue to lead the awareness and understanding of this kind of boiler hot water boiler, thus, to increase the amount of their own knowledge in this area, namely is, you can learn some new harvest, in turn, make their own benefit. 1. Installation place emphasis hot water boiler installation: hot water boiler installation site, is to be elected in a dry place and no staff to move around in, and the ground should be flat and level, not rugged. In addition, there should be some space around it, in order to facilitate maintenance work. Piping arrangements: its plumbing installation, which should have qualified personnel related to excess pipeline valves and piping, is not free to change and changes in order to avoid problems. Its expansion tank and the atmosphere communicating tube, in height should be higher than the boiler. Further, in the hot water outlet, the valve is not installed, so as not to form a pressure-state. Circuit arrangement: by professional electrician, and the line of the hot water boiler, to heat or not heat, moisture and the like, in addition, not on the walkways. For the main power circuit breaker, it should match the capacity of the boiler, so the job. Exhaust chimney: generally the choice of metal material, with a bent if, then, should be unimpeded elbow, and on the number, is not more than two. Further, on the outside thereof, a weather hood should be fixed, so the job.

After the boiler put into use, such as the hotel responsible person to give us feedback: fast boiler advanced product design, simple and intuitive operation, the most critical is energy saving, low NOx emissions, can be used in the Beijing area. Compared with other boiler brands, fast Boiler made us worry. --customer feedback

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