superheated steam boiler startup procedure

In the process of using steam hot water boiler, when the water containing impurities enters the boiler, with the continuous evaporation and concentration of water, the concentration of impurities in the water increases gradually. When the boiler reaches a certain limit, it will bring some adverse effects to the boiler. The way to deal with this situation is to discharge the boiler, so what matters need to be paid attention to when discharging the boiler? The following is a detailed introduction for everyone. (1) before discharge, the boiler water level shall be adjusted slightly above the normal water level. When discharging water, closely monitor the water level to prevent gas-fired boilers from running short of water as a result of pollution discharge. After sewerage, there can be no more sound of water flowing in the pipe. After a period of time, then touch with your hand. Sewerage pipe, if the feeling temperature is high, indicate sewage valve has seal condition, must find out the reason to be eliminated. (2) according to the principle of diligence, less row, and uniform arrangement, each shift should be discharged at least once. When a gas-fired boiler has several sewage pipes at the same time, all sewage pipes should be discharged in turn. If only one part is discharged and no other part is discharged for a long time, the water quality of the furnace will be reduced or some sewage pipes will be blocked. It can even break the water cycle and have a pipe explosion. When multiple boilers use one main drainage pipe at the same time, it is prohibited to discharge water simultaneously to prevent the sewage from flowing back to the adjacent boiler. (3) Sewerage shall be discharged after the boiler is pressed or at a low load When, at this time boiler water circulation is slow, the slag scale is easy to accumulate, the discharge effect is good. (4) the discharge operation of gas-fired boiler should be short and discontinuous, that is to say, after each discharge valve is opened, it should be closed again. So repeated several times, rely on suction to make the slag quickly confluence to the sewage outlet, and then centralize the discharge. If the first discharge time is too long, the concentration of slag scale in the pot water is first high and then low, which not only reduces the discharge effect, but also increases the amount of sewage discharge, thus causing the local water circulation to fall. (5) the adjustment operation of the surface discharge is realized by the opening of the regulating valve, and the value is determined by the test results of the water quality of the pot. It is possible to discharge steam hot water boiler on a regular basis. In order to make the boiler water quality meet the standard requirements, maintain good water quality, slow down or prevent scale formation, ensure the use of steam hot water boiler.

Boiler safety prevention knowledge (HTHP article) 1, high temperature and pressure equipment or piping good insulation, to prevent the exposed portion of burns. 2, the boiler operates at high temperatures and pressures, should wear clothing anti-scalding, Glove, helmet and wear necessary labor protection. 3, the process leak, the pressure should be, the temperature may be controlled within the operating range (0.1MPa, 80 ℃) of. 4, the switch valves, not being on the valve body, so as not to hurt the steam leak. When the trap open, pay attention to the foot of the drains, to prevent burns. 5, playing to prevent burns coke, coke at the end of play, collect the tools, in a safe position, so as not to trip or burn others. 6, the leak sound heard, the exact location can not be determined, the blood pressure should be shutdown to find traces of water, to determine leakage. 7, superheated steam leaks allowed to close, after the test paper or cloth, to determine the exact location.

About 1 boiler combustion adjustment, the main task of regulating combustion load at the same time meet the needs of the outside world the amount of steam and qualified steam quality, safety and economy of boiler operation. 2, adjusting the combustion boiler trial planned change certain parameters and tunable control (i.e., fuel supply and air distribution mode embodiment) of combustion conditions and make full adjustment measure certain single index value, and the acquired the results of scientific analysis, were compared in terms of economy, safety aspects, to determine the best way to run the whole operating characteristics and school equipment, such as testing, measuring and analysis work, adjusted for the boiler combustion test. 3, boiler combustion adjustment test of the meaning and purpose boiler combustion adjustment experiment is designed to explore the boiler operating characteristics and laws, and to determine the safety economic operation of boiler fuel in existing equipment and the nature of the conditions by testing. By adjusting the test burn more comprehensive, technical and economic characteristics of the boiler can be obtained under optimum operating modes (including fuel, air, flue gas, and soda working fluid operating parameters and boiler efficiency and auxiliary power indicators), to strengthen power plant technology management, performance control equipment to develop operating procedures, into the combustion automatic control system as well as good economic dispatch of the whole plant to provide evidence. Combustion Tuning Test purpose is to master the technical and economic characteristics of the boiler operation to determine the best way to run the boiler combustion system and various changes in the laws affecting factors, so as to ensure safe and economical operation of the boiler unit.

Dezhou City, Shandong Province issued - an important part of "Dezhou 2018 2020 coal consumption reduction alternative work" (the "Program"), the Yajian coal consumption as an ecological civilization construction and environmental protection work, and resolutely fight pollution prevention tough fight. "Plan" put forward, as of 2020, total coal consumption Dezhou control in less than 18.5 million tons, clean heating rate of 70%.

According to "program" requirements, Dezhou vigorously for shutting down the environmental, energy, security and other 300,000 kilowatts of coal-fired units of non-compliance, especially running at least 20 years of pure condensing units and over 25 years of condensate pumping thermoelectric unit. At the same time shutting down out of small coal-fired boilers to reduce coal pollution. Upon completion of the city's 10 steam tons / hour and coal-fired boilers are all clear on the key areas in national, provincial and determined basically eliminated 35 tons of steam / h coal-fired boilers, 65 tons of steam / hour or more coal-fired boilers completed energy efficiency and ultra-low emissions transformation.

Dezhou will also expand the scope of central heating, promoting clean urban and heating, 2020, the Center City District (Germany City, Texas Economic Development Zone, the Canal Economic Development Zone) central heating area of ​​45 million square meters, the other 10 counties (cities, districts) central heating area of ​​41 million square meters, the implementation of central heating pilot projects in rural areas where conditions permit. For areas not covered by central heating, according to the resources in the area of ​​heating conditions, combined with infrastructure construction, promote the substitution of gas for coal to other electricity-generation clean energy alternatives such as coal and biomass. As of 2020, Dezhou city's average clean heating rate of 70%. Among them, the city basically clean heating comprehensive coverage, average clean heating in rural areas reached about 55%.

In addition, Dezhou will continue to increase the proportion of natural gas consumption, substitution of coal consumption, encourage the development of direct supply of natural gas to large users to promote key industrial enterprises, industrial parks to achieve direct supply of natural gas. By 2020, increase the proportion of natural gas consumption in energy consumption to about 7%.

Steam Boilers and Steam Generators by Clayton Industries

Superheated Steam Generators (200 to 1,000 BHP) The fast startup of these superheated boilers makes them ideal as startup boilers for gland sealing in combined cycle power plants. Since superheated steam generators are essentially the same as saturated steam units with additional heating sections, they provide the same advantages.

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