china made hot water boiler

In order to promote technological progress and sustainable development, improve environmental quality and protect public health, recently, the Liaoning Provincial People's Government of air pollutants for coal-fired power plants developed specific criteria (hereinafter referred to as the "standard"). This is the first time a set of policies Liaoning Province for air pollutant coal power plant.

"Standard" provides for pollutant discharge limits, surveillance and monitoring requirements within the jurisdiction of coal-fired power plant in Liaoning Province atmospheric and fugitive emissions control requirements. Since the implementation of the standards, air pollutant emissions coal-fired power plants all within the jurisdiction of Liaoning Province will be executed in accordance with the provisions of this standard.

2, since January 1, 2019, the emission limits of existing single output and more than 300MW generating units supporting the provision of a coal-fired power generation boilers execution table.

3, since 1 December 2020, the emission limits of existing single output 300MW generating units supporting the coal-fired power generation boilers and other power boilers as specified in Table 1 execution.

Sampling the exhaust gas (1) power plant, to be carried out in a predetermined position in accordance with the type of monitor emissions monitoring contaminants. In the discharge of pollutants should be set up to monitor the position of long-term monitoring holes, sampling platform and related facilities. When the sampling platform height from the ground greater than 40m, should be set by a lift platforms, lifts or other convenient and safe facilities. No elevator or elevator building coal-fired power plants, when the sampling platform height from the ground greater than 20m, should be set up safe, convenient electric monitoring equipment hoisting facilities.

Composition structure (3) continuous monitoring system atmospheric pollutants, technical requirements, test items, test methods and installation, commissioning, acceptance, operation management, data processing, etc. according to the provisions of HJ75 and HJ76.

(5) continuous monitoring system meter of air pollutants detection sensitivity, detection limit, and should meet the range of low concentrations of pollutant emission monitoring technical requirements, the concentration of nitrogen oxides include nitric oxide (NO) and nitrogen dioxide (of NO2), Determination of nitric oxide only has the ability to configure the analytical device of nitrogen oxides NO2 / NO converter.

(7) for coal-fired power boiler emissions of air pollutants sampling monitoring, sampling frequency, the sampling time and the operating load requirements,, HJ / T397 and related predetermined low exhaust gas concentration monitoring is performed according to specifications GB / T16157.

(9) shall be in accordance with the provisions of the enterprise "Environmental Monitoring and Management Measures" and the HJ819, HJ820 requirements of pollutant emissions and its impact on environmental quality around to conduct their own surveillance, monitoring and save the original records, public information.

Determination of air pollutants fired power plant analysis are shown in Table 2. After the release of the present embodiment national standard method of monitoring criteria pollutants, such as applicability to meet the requirements, the same applies to the determination of the corresponding standard contaminants present.

2, responsible for overseeing the management of this standard by the executive authorities and the standardization of administrative departments above the county level environmental protection. The results of the environmental protection departments at all levels and other relevant units in the enterprise supervision and checks can be instantly sampled or monitored the scene as determining whether acts of sewage meet emissions standards based on the relevant environmental protection and the implementation of management measures.

Talking about the reason for corrosion of boiler water most of our people still love the china made hot water boiler equipment, this situation makes the use of hot water boiler in our country more widely. But now the development of society, the hot water boiler in the course there have been some problems, these problems are largely due to the hot water boiler corrosion problems in the process of being used, there is erosion of our country's hot water development boiler subject to certain obstacles, so this requires appropriate measures against corrosion of hot water boiler arise in the course becomes more important. 1.1 1. The hot water boiler feed water causes corrosion in oxygen is well known that the relative increase in the use of hot water boiler is required to participate in appropriate water sources, and water in metal materials can lead to corrosion of the metal material phenomenon. And the water is from oxygen and hydrogen elements, and it also led to a large extent on the respective device corresponding metal oxide occurs during use, but also seriously affect the potential change of the metal surface. Since this will lead to excessive release of oxygen and the potential change of the metal surface, corrosion is exacerbated by the metal used in the process. Further studies in the respective hot water boiler is found there is a proportional relationship between the amount of leakage water capacity of the system in general and the boiler of the boiler, which is the ratio between the amount of leakage can not exceed the corresponding receiving system in a certain angle one percent of the amount of water. Thus during the welding of the boiler would need to fully consider these two points, the metal portion is welded tight, so that the integrity of the boiler to form a spacer. PH 1.2 Water circulating index gradually lower to a great extent, it will be associated such that the pH of the extent of corrosion of the metal object or exacerbate certain influence on the corrosion time. Hence the need for full consideration the degree of acid-base-site environment during the corresponding boiler equipment, but also that you maintain the appropriate level of pH can be maintained within the range set by the state. State PH value of the boiler is generally between predetermined environment 11 to 12, which means are above or below this value corresponding to the metal boiler corrosion, it will make the overall state of the further boiler takes place some changes. And the temperature of the hot water boiler are also corresponding requirements, generally require a temperature of hot water inside the hot water boiler is maintained at 95 degrees Celsius, but the amount of water to make the problem described earlier, if a boiler exceeds the predetermined replenishment the value will result in a corresponding change in the pH of the liquid inside the boiler occurs to a great extent, further affecting the normal operation of the boiler. 1.3 boiler action principle relatively fast flow rate through the boiler that the boiler is heated so that the liquid inside the boiler to achieve a state of heating, the boiler is further obtained that the normal operation. However, in the course of the entire hot water boiler is also a need to achieve appropriate control of the corresponding flow velocity. This is because in the course of excessive boiler or too slow water flow rate will make the crossing different corrosion occurs. When the water inside the boiler is too fast diffusion rate will lead to various substances contained inside the boiler becomes fast, this situation will be such that the angle of the underlying boiler corroded velocity have a certain upgrade. When the flow rate of the water inside the boiler is too slow, so that the gas boiler will overflow occurs, the overflow of these gases are typically adheres to the inner metal wall of the hot water boiler, so that the passage of time will occur in the corrosion of metal parts of the boiler The phenomenon.

Low nitrogen gas boiler transformation is the transformation of the main burner, professional and technical personnel after the collection of the relevant parameters and develop rehabilitation programs in order to begin to proceed with low nitrogen transformation.

The basic structure is mounted within the small cylindrical large cylinder (boiler shell), the tube (appellation "fire control"), or other shaped housing (title "furnace"). Fire tube and formed with a large cylindrical insulating jacket, jacket water content, and the fire-tube combustion chamber and the flue purported furnace, flame or smoke receiving, fumes or combustion heat caused by the fire wall pass water. The arrangement direction thereof, the main structure can be divided into vertical and horizontal.

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