About Code of Practice Code of Practice for the safe operation of the hot water boiler hot water boiler hot water boiler safe operation because of its specificity required safety practices. Understandable that the normal life and production are inseparable from the use of the hot water boiler. How hot water boiler safety issues need to be protected? 1, carefully check the work before the hot water boiler, drainage, gas pipe fittings, safety valve, pressure gauge, water level, is sensitive so that, after confirming it is safe to operate. 2, with both hands to manipulate when Sheung hand to open the door of water, whereupon the other hand the water injector and valve open, the water naturally into the furnace. When stopped, the steam valve should be closed first, then turn off the water door, switch and valve, the front face must escape to avoid soft drinks out of the accident. 3, hot water boiler in operation, inspection departments to pay attention to observe the pressure and water level. Fireman are not allowed to leave their posts without permission, when night work, avoid dozing off, more sleep deprivation, in order to avoid accidents. Hot water boiler blowdown, must be performed once per shift, adjust the water level in the sewage before, slightly higher 2/3, followed by sewage. 4, the water level table class must be flushed once. When flushing, according to established procedures, the first closure valve and open the drain valve, flush valve steam, steam at this time pay attention to the origin is blocked. Steam valve is then closed, when attention is blocked antecedents water. Flushing valve, until the water becomes steam, some a little longer, in order to guarantee no false water level. Hot water boiler coal must be checked, to prevent coal detonator explosives and other explosives thrown into the furnace, to prevent the risk of explosion. 5, to always check the temperature of the motor housing and the machinery, such as mechanical failure or an electric motor with a fever more than 60 degrees, stop testing immediately. Hot water boiler normal operation, the vapor pressure shall not exceed the operating pressure, the safety valve inspection once a week.

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Fuel gas steam boiler safety and the prevention of fuel gas steam boiler is the flagship product, installation and after many years of production experience, now a comprehensive summary of the accident prevention measures gas boiler fuel and steam to share: fireman who must operate by the quality and technology supervision department issued the use of a registered boiler. Fireman who operate independently of the operating permit required to hold a fireman, and you meet the operational requirements of furnaces and categories. Boiler ignition should be done before the body of the boiler, burners and other auxiliary equipment, all attachments, valves, water supply, gas supply system and the electric control circuit inspection departments, and confirm normal. Play an open air valve, water to the pot water level slightly lower than normal water level. With "manual" to start the fan, the furnace was purged, the control system is adjusted to "auto" position, and then press the "start" switch, the boiler will be according to a predetermined program: Purge - Ignition - combustion - temporarily shutdown. Such as a faulty ignition program, fans can continue to manually purge and re-ignition, such as three unsuccessful ignition, to cease firing and gas, to identify the cause of the fault elimination, in order to re-ignite. When the pot was raised slightly greater than atmospheric pressure, the air valve has steam coming, can close the air valve. Requirements fuel gas steam boiler boost process, according to the provisions of checks and do all the operations carried out in order to confirm or steam supply and the normal furnace. After normal operation, you should always adjust the air supply, air supply and water supply, to maintain the water level and pressure stability, the need to adapt to the load, to ensure that the steam supply. Operation inspection checks should be carried out once every hour, and carry out all the provisions of the recording, check to confirm the name. Class should be flushed sewage water table and each time, the exhaust valve test, pressure gauge should be required to flush the requirements of the trap and check the safety devices perform, record and fill in, sign name recognition. First stop during normal shutdown supply, air supply is stopped later, to keep the water level above the normal water level. Fuel gas steam boiler furnace and flue gas boiler explosions are common in accidents.

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.