Yesterday we learned that the Guangdong Province to increase pollution control efforts by the provincial people's government approval, Guangdong Province Market Supervisory Authority, the ecological environment of Guangdong Province, Guangdong Province, recently issued jointly approved by local standards "boiler air pollutant emission standards." Compared to the original standard, including contaminant particulate matter, sulfur dioxide, nitrogen oxides, etc. received strict emission limits help to further reduce the total emissions of air pollutants.
Provincial Department of environment-related offices responsible person, the current Guangdong Province "Boiler Air Pollutants Emission Standards" promulgated and implemented more than eight years, with advances in pollution control technology, emission control requirements of its apparent leniency. Meanwhile, Guangdong air pollution control task is arduous, urgent need to close strict standards, further reducing the total emissions of air pollutants.
Guangdong "boiler air emission standards" in the context of the implementation province domain for coal, the material forming the fuel oil, gas and raw fuel 65 tons of steam per hour and less steam boilers, hot water boilers of various capacities and Heat Transfer Material Heater; stoker various capacities, stoker furnace.
The new "boiler air pollutant emission standards" (DB44 / 765-2019) to adjust six major areas.
A clear the raw fuel material forming air pollutants emission limits fuel boiler;
Second, the received strict emission limits boiler air pollutants, increasing the emission limits coal boiler mercury and its compounds;
Third, the abolition of provisions different emission limits by functional area and boiler capacity;
Fourth, in particular an increase of atmospheric pollutant emission limit requirements;
Fifth, increase the fugitive emission control requirements;
Sixth, the excess air ratio conversion flue gas pollutants to the atmosphere of pollutants emission concentration of the reference oxygen content conversion, the oxygen content of the clear reference atmospheric pollutants fired boiler burning biomass.
The new standard in the province gamut execution, the execution time of the specific step-wise: new boiler effect since April 1 this year; the transformation of boilers give some time, depending on which region, from 1 July 2019 2020 or the date of July 1 implementation of the new standards.
Gas boiler price, which is an important aspect of boiler, especially in the purchase of boiler products, is a specific aspect that must be taken into account. So, since this is an important aspect of the boiler, and it is mentioned at the beginning of the article, then let's take a good look at it, so that we can also learn about this website product from different aspects, and at the same time, Also can broaden their knowledge, add some professional knowledge.
01. What is the price of a domestic coal-fired boiler? Domestic coal-fired boiler, its boiler price, mainly depends on heating area, because, is determined by it. If the heating area is 200 square meters, then the boiler price is several thousand yuan. Moreover, the boiler is automatic temperature control, the thermal efficiency can reach 91%.
02. 15 tons of steam boilers, what does the boiler price relate to? 15 ton steam boiler, its boiler price related factors, such as fuel type, steam pressure, boiler structure and accessories and so on. Therefore, these must be considered comprehensively, so that we can make accurate judgments and get the correct results, and then choose our own products to avoid mistakes.
03. Is the price of gas-fired boiler related to natural gas? In addition, different boiler manufacturers, why is the price of products different?
Ordinary gas boiler obvious advantage is the relatively low price, which is most of the reason customers choose it. Just use the boiler is not mandatory for low nitrogen emissions, you can directly select the ordinary gas boiler, this enterprise is also very friendly.
Electric heating water boiler works belonging horizontal electric heating hot water boiler power steam boiler furnace using the electrical control cabinet separated manner to avoid thermal aging of the electrical components affect the service life. Electric tube using domestic and international high-quality products. Normal service life of 20,000 hours, and nearly 99% thermal efficiency, quiet, clean, environmentally friendly, without emission of nitrogen oxides (nitrogen oxides) into the atmosphere. PLC control system operation, no buttons, no pointer, touch screen, Chinese and English display, man-machine dialogue, authorization to operate, real-time information, auto-flip. All electrical components are CE and CCC certification mark to ensure product safety and service life. Centralized heating elements each beam flange connection, has a simple structure, high mechanical strength, safe, reliable, easy to replace, and long service life. Having a simple structure, high mechanical strength, easy to replace, and long life. Vapor space, good steam quality, electromechanical components separately installed, the electronic control elements away from heat, allows for heat dissipation. It can be used in parallel with one or more units. PLC programmable control and display computer, automatic control of temperature through the man-machine interface. The display shows the operating parameters and equipment failure alarms. Electric heating boiler is relatively simple structure. Connected triangulation electric heating tube, the three heating pipe connected to a set of external cover connected to an external electrical device on the flange, electrically heated screen disposed in the heating process externally medium heating tube group is completed in the cylinder. No need to lay pipes. It is provided with water inlet, hot water outlet (or steam), safety valves, pressure gauge, and a drain valve on the wiring board main body simplified. Works electric heating boiler feed water metal pipe heated by electric heater, electrical energy directly into heat (hot water or steam generation). It does not require burning by the chemical energy into thermal energy, and therefore no need to provide the air required for combustion of fuel, does not require emission of harmful gases and ash in full compliance with environmental requirements. Electric boiler electric heating element wide range, depending on the form of heating elements, generally divided into resistive, and thin film electrodes. Resistance to a high impedance resistor type tubular heating elements. After power on, tubular heating elements generate heat, hot water or steam into the water. Tubular heating element from the metal shell, and an oxide conductor layer. The advantage of this element is not charged, the use of safe, does not pollute the water quality. The problem is to increase the capacity of the boiler is dependent on the number of tubular heating element and the boiler load is adjusted according to the number in operation. Thus, the electrical heating element arrangement limits the capacity of the boiler. Works electrode element electrode is the electrode into the water, using the water resistance of the high energy directly into electrical energy. In this conversion process is almost no energy loss. A common electrode is divided into electrode type element and a high pressure type electrode type. Electrode very safe operation of the boiler, the boiler will not dry burning phenomenon. Once the furnace because the water is cut off, the channel between the electrodes is cut off, the current is zero, the boiler is automatically stopped. Electric film Electric film heating technology is a new technology developed in recent years. It has a higher specific resistance wire heating electric conversion efficiency. The principle is sprayed on the surface of the semiconductor thin film enamelled steel (metal oxide), i.e., microspheres electric material, to achieve high-power electric conversion. It has a wide range of applications, long life, high current impact resistance capability, substrate adhesion, cold resistance, high thermal shock damage resistance for a variety of base materials, simple equipment, less investment, low requirements for the process operating environment features.
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