2. 10 tons of coal-fired steam 5 tons industrial boiler in hospital

In many areas, due to environmental pollution caused by coal-fired boilers, restrictions on coal-fired boilers began. However, due to the development of clean coal-fired technology and the richness of coal-fired resources, the use of coal-fired boilers is more convenient. The coal-fired boilers produced by ZG boiler have excellent environmental performance and customers can choose according to their needs.

Condensing 5 tons industrial boiler in hospital 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 steam boiler /, 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.

Three kinds of cleaning methods, whether industrial 5 tons industrial boiler in hospital or steam boiler hot water boiler, the water treatment effect due to the different amounts of different kinds of impurities contained in the long-term use will form a dense hard scale. Dissolved oxygen in water and etching the corrosion products will contain a certain amount of scale on the metal occurs. Once the formation of scale in the boiler, the boiler can lead to poor circulation, affecting normal use, may also lead to serious accidents, so be sure to regularly carry out cleaning and maintenance of the boiler. Currently there are ways to remove scale mechanical descaling and chemical cleaning, chemical cleaning can be divided into caustic cleaning and acid cleaning. These three methods have advantages and disadvantages, the user may select a targeted according to their actual situation: 1, mainly mechanical descaling backwash tube, blade, blade like tool, sometimes with water washing for mechanical removal. This method is relatively simple, low cost, labor intensive, poor cleaning, easy to damage the metal surface, cleaning is only applicable to a small area, and a simple structure to facilitate mechanical shovel tool sized steam boiler scale. 2, caustic washed with boiling out for descaling trisodium phosphate, caustic soda, soda ash and other basic drugs, its main function is to loosen the scale and facilitate its fall, caustic cleaning and mechanical cleaning is often performed with. Caustic dosage is: trisodium phosphate 3 ~ 5kg / t; Soda 1--2kg / t sodium 2 ~ 4kg / t. Boiling out pressure is the normal operating pressure steam boiler hot water boiler 2/3 time is generally 24 to 40 hours. Cook stoves, boilers need to always maintain the highest level. After the cook stove, should be allowed to cool naturally, the temperature dropped to 50. About C then drain and open the mechanical descaling boilers timely, so as not to re-harden soft scale. This method is simple, less side effects, but long cleaning time, multi-drug consumption, cleaning is not complete. 3, conventional descaling pickling hydrochloric acid was added inhibitor, sometimes adding a fluoride, a surfactant additive, pickled. More thorough pickling for descaling carbonate scale and rust scale poor effect on sulfate and silicate scale, must comply with the alkali cooking transformation descaling. Not only because the acid can react chemically with the scale, but also corrode metal, boilers acid is a highly technical work, must be borne by the provincial labor department accredited professional cleaning unit. Note that, if there is a steam boiler and hot water boiler operating in parallel, no matter what method is used, before carrying out cleaning must be reliably isolated with all gas, water pipes are connected, to do so in order to improve safety coefficient.

In recent years, the increasing popularity of Yichun City, Jiangxi Province comprehensive energy saving coal-fired 5 tons industrial boiler in hospital upgrade project, plans to eliminate 75% of the downtown 10 steam tons / hour and below the coal-fired boilers, a ban on new 20 tons of steam / hour and less fuel coal boilers; the rest of principle, then the new 10 steam tons / hour of coal-fired boilers.

Following this, Jiangxi Province Department of Finance issued a special subsidy fund boilers, Yichun downtown 2015--2016 phase-out 10 steam tons / hour coal-fired boilers companies grant. The subsidy standard is: 2 out of steam tons / hour and coal-fired boilers, subsidies to 10,000 yuan / Taiwan; out of steam 2-10 t / h coal-fired boiler, subsidies for 20,000 yuan / Taiwan.