low price cheap steam boiler

Misunderstandings in cleaning of condensing boilers and their improvement measures

During the manufacture, transportation and installation of the condensing boiler directly supplied by the new factory, the inner wall of the condensing boiler is concentrated with oxide or other dirt, which causes the condensing boiler to be corroded by the hot surface during its initial operation. Therefore, a series of measures should be taken to ensure the cleanliness of the condensing boiler when it is installed and ready to run. So in the process of consumer cleaning, what mistakes will be misplaced, and how to use it correctly? 1. there is no chemical analysis in the process of chemical cleaning: chemical cleaning is a very rigorous process. But if the chemical cleaning is not complete, some of the dirt has not been completely cleaned; and if the cleaning time is too long, Wash phenomenon will occur; cleaning effect is not good, secondary cleaning will waste raw materials, and delay time. The phenomenon of excessive washing will aggravate the corrosion of condensing boiler, cause the metal bearing capacity of condensing boiler to decrease, and affect the normal operation of condensing boiler. The improvement measures are: must do the chemical analysis detection in the chemical cleaning process, every ten minutes to test the acidity, the total iron ion concentration, the PH value. When the two analytical data are close, the chemical cleaning reaches the end point, neutralizing the acid solution to the neutral and then discharging.

2. no passivation after chemical cleaning: passivation process is actually a clean condensation boiler body surface and passivation agent re-reaction process. Because the control point of passivation is more strict, if the control point is not well controlled, the passivation will fail, and if the pickling is finished, only simple neutralization will be carried out, and the cleaning will end, which makes the surface of the cleaned condensing boiler easy to produce secondary floating rust. The scale-inhibiting ability of condensing boiler is reduced, which makes it easy to rust. The improvement measure is to rinse and passivate the condensing boiler after pickling. Because the passivation requirement is relatively strict, the concentration of total iron ions must be strictly controlled in the rinsing process. Rinse After finishing, the pH value should be adjusted to strong alkalinity immediately after the iron ion is detected, and the passivation agent should be added to passivate the temperature.

Commonly used during the period of the Shutdown of food plants Maintenance Shutdown of the food factory maintenance methods, known from the time of the shutdown cause of corrosion, corrosion can not do without oxygen and water boilers, so to do the maintenance shutdown, the need prevent oxygen to enter and work hard to keep dry. 1, the dry maintenance Dry maintenance primarily by placing a desiccant or a particular gas or the like charged into the boiler water-side holding metal sulfate or preventing the entry of air maintenance method for long-term maintenance shutdown. Commonly used methods desiccant method and inflation method. 1.1, desiccant process. Disable the boiler, the furnace was naturally cooled to be started when the drain 100 deg.] C, using residual heat boiler for drying. Each valve opens and the inspection hole, remove scale furnace, ash and the like. Open containers with a desiccant, arranged along the longitudinal direction of the drum is placed. To determine the amount of desiccant in accordance with the volume of the boiler. To lime, the amount is generally 1m3 boiler is 3 ~ 5kg. Desiccant been placed to be close all valves to prevent moist ambient air from entering. After the boiler to be regularly checked, when found in the case of a desiccant appear consolidation and deterioration should be replaced immediately, usually 15d to be replaced once a month. 1.2, inflation method. After draining water boiler, ammonia gas or nitrogen gas charged into the boiler, to displace the oxygen and water vapor in the furnace, the furnace pressure was sealed and maintained at 0.05 ~ 0.1MPa, prevent outside air into the pot, to achieve the anti-corrosion purpose. This method is simple, reliable, universally applicable to all kinds of boiler structures.

The partnership, fast boiler for the user responsible attitude to have left a deep impression on our fireman boiler operation is not very skilled, fast deliberately sent a party of professional and technical personnel for our on-site supervision of installation, commissioning and training to ensure that the latter can operate our good boiler fireman. --customer feedback

Gas and low price cheap steam boiler water is yellow it several factors steam boiler combustion gas, there is a case of yellow water, water is sensed value hydrogen ion concentration exponent gas steam boiler is less than 11 or less, that water will certainly detected value there acidic conditions, generally speaking, have a kind of aggressive situation of every corner of the interior of the boiler, in this case, naturally there will be yellow case

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