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Whether the boiler can move equipment and whether there is a security risk? Boiler, it can be said, it is an important site for the product, so its knowledge and understanding, must be carried out, but also can not be sloppy, otherwise, the learning is not compliance. So, in order to reflect the importance of this product, the following will continue to explain knowledge in this area, at the same time, you can let everyone in on the familiarity and level of understanding, has increased. 1. boiler, whether it can move equipment? If so, then what is the specific steps? Boiler, whether it can move equipment, mainly to see its useful life, if its useful life is over ten years, then the shift is not installed. If it meets the requirements can move equipment, then, on the specific steps are as follows: Special to the location of the handle to move equipment Quality Supervision Bureau boiler application - newly installed boiler at the site of Quality Supervision Bureau of the Ad Hoc handle to move equipment to inform - pot supervisory inspection seized by the installation - and put into use.
Condensing boiler technology together to understand 1. What is the calorific value of the fuel? A: The amount of heat per unit mass of the complete combustion of the fuel at the time of heat emitted is referred to as the fuel. 2. What is the fuel of high calorific value and net calorific value? A: The calorific value of fuel into high calorific value and net calorific value. Refers to all of the gross calorific value of the heat released when 1Kg complete combustion, flue gas comprising water vapor is condensed to release latent heat of vaporization of water. From a high calorific value fuels deducting latent heat of vaporization of water vapor in the flue gas, said the calorific value of the fuel. Obviously, greater than the gross calorific value in the calorific value, the difference of latent heat of vaporization of water vapor. Natural gas, for example, high fever which is about 9500kcal / m3, the low heat generation is about 8600kcal / m3, a difference of about 900kcal / m3, representing approximately 11% of the calorific value. 3, why the thermal efficiency of the boiler will be greater than 100%? A: Because the actual calorific heat when the closest industrial boiler combustion, commonly used in design calculations, that the efficiency of the boiler is not considered original exhaust accounts for 11% of that part of the latent heat of vaporization, the thermal efficiency of the boiler in general from 90 to 92%. Therefore, when lower calorific value calculation in boiler efficiency, such as the use of vaporization latent heat of condensation in the art and the use of part of the exhaust gas sensible heat, efficiency may be greater than 100%. 4, with a condenser boiler if you can not? A: August 30, 2010 AQSIQ issued TSGG0002-2010 "boiler energy saving technical supervision and management regulations", according to "Regulations on Safety Supervision of Special Equipment" provides "high energy-consuming special equipment supervision and management of energy-saving measures" in this Regulation the boiler design, manufacture, installation, alteration, maintenance and use of energy-saving and other aspects of work put forward specific demands, has great significance for energy conservation boiler specification. 5, the relevant excerpts of important provisions: Article VIII: Boiler Exhaust Gas Temperature should consider the security and economy of the boiler, and meet the following requirements :( a) Rated evaporation is less than 1t h fire tube steam boiler in iran /, no more than 230 ℃. (Ii) Rated evaporation is less than 0.7MW steam boiler, not higher than 180 ℃. (C) greater than or equal to the rated evaporated 1t / h of steam boilers and thermal power rating equal to or greater than 0.7MW hot water boiler is not higher than 170 ℃. (Iv) less than or equal to the rated thermal power of the boiler 1.4MW organic heat carrier is not higher than the inlet temperature of the medium 50 ℃. (V) organic heat boiler rated thermal power is greater than 1.4MW of not higher than 170 ℃. Article 23 in a natural gas-fired boilers, appropriate semi-condensed or condensed tail full heat exchange device, the flue gas heat recovery. Article 26 boiler boiler manufacturer shall provide products to use units of energy efficiency test report. Energy efficiency energy efficiency testing should be determined by the State Administration of Quality Supervision boiler testing agencies.
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.
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