hot water boiler in syriapplied in school

The size of the boiler pressure about the size of the load, is adjusted by adjusting the pressure regulator to achieve. When adjusting the load, simultaneously adjusting air pressure, air volume control must be synchronized, to ensure proper gas to match the air flow, so as to achieve economic operation of the boiler. In normal operation, the gas may not be a sharp turn up or down, in order to avoid abrupt change in combustion, the pressure receiving member suddenly damaged dilations.

Common methods of water quality testing of industrial boilers which (1) comparative analysis of what common method of industrial boiler water quality testing have. Industrial boiler water quality testing will generally take two comparative analysis. The first analysis method is to compare room. Indoor contrast mainly through the contrast between the contrast between people or equipment. The second method is to compare the laboratory analysis. This method is mainly for comparison and testing personnel random error, system error. (2) review sample. Water quality sampling, number, checking and retention, and then returned to retest samples deputy members. Deputy sample prior review, to be processed. Environment and pay attention to time during retest retest sample, so that the processing result can be obtained twice, and then the results were compared. Sample analysis (3) in parallel. When parallel samples for monitoring, to ensure that each batch of samples will be monitored. Determining the actual number of replicates the number of samples so that it can effectively ensure that the number of replicates measured more reasonable. Also setting it within a reasonable range. (4) control a calibration curve method. The calibration curve using the control method can make the results more accurate. First, the calibration curve Control Act mainly a combination of a certain time period, so that the result will be more timely and effective, precise terms, generally to a calibration curve based on monitoring of time each batch of samples. Second, to ensure the accuracy of the calibration curve, it can really play to monitor the effect of the sample.

It is understood that around prevention and control of air pollution, ecological Environmental Protection Office of Shaanxi Province has formulated the "Boiler Air Pollutants Emission Standards" ( "Standards"), amended the "off key industries in the region of atmospheric pollutant emission limits." In the future, biomass, alcohol fuel boiler emissions also be included in "Standards".

"Standard" is to integrate and improve the local air emissions standards boilers. "Standard" for the scope of the province, covering coal, gas, oil, various types of fuel such as biomass; using alcohol fuel (e.g., methanol, ethanol, dimethyl ether, etc.), gas-fired boiler with reference to the implementation of emission limits.

After calculation, coal-fired thermal power boilers in Shaanxi Province implementation of the new standards, particulate matter, sulfur dioxide, nitrogen oxide emissions respectively about 0.67 tons 15,200 tons, 1.26 tons, down 27%, 40%, 21%; Burning after transformation of coal boiler, particulate matter, sulfur dioxide, nitrogen oxide emissions can be about 01,400 tons, 1.42 tons 14,100 tons.

With the haze pollution reduction work to promote strong, Shaanxi Province coal-fired generating units and 20 steam tons / hour or more coal-fired boiler to carry out the transformation of ultra-low emissions, will gradually iron and steel, cement and other industries to carry over non-electric low-emission transformation, the original standard has been overtaken by change of environmental situation. Additionally, the Guanzhong area of ​​glass, ceramics, bricks, gold and other industry, there are a certain number of kiln, its environmental requirements leniency.

The revision of the "off key industries in the region air pollutant emission standards", the abolition of the thermal power industry, coal-fired boiler emission limit requirements, these two sectors rose to individual standards province-wide.

It also increases the coke nitrogen oxide emission limits Chemical Industries, gold industry, glass and glass products, ceramic industry emission limits, increasing the concentration of tile industries and atmospheric pollutants conversion approach.

The new standards are expected coke chemical industry NOx emissions will decrease 70%, the sintering process the steel industry, the particulate matter, SO2, NOx emissions decreased by 50%, 72% and 67%, respectively.

(1) When the boiler water level gauge water level drops below the lowest water level, through the "waters" law also failed to see the water level. (2) increase the boiler when the water level continued to decline up time. (3) water supply system failure, unable to supply water when the boiler. (4) water level gauge and a safety valve failure, can not guarantee the safe operation of the boiler. (5) When the control valve and the drain valve malfunction when closed lax. (6) when the pressure receiving surface of the waterwall tubes or boiler smoke tubes bulging or cracking occurs, the furnace wall, collapsed down occurs when the front arch. (7) In case of failure of a safety valve, pressure gauge displays the boiler overpressure operation.

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2015-8-5 · POWER PLANT STEAM GENERATION 2. STEAM TURBINE DESIGN continuous rating of the boiler) rounded to the next higher unit of 5 psi (34 kPa gage). Based on the specified operating pressure, the boiler manufacturers will design the boiler parts and safety valve pressure settings in accordance with the ASME Boiler and. Get A Quote

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