Acid cleaning method by using an appropriate amount of hydrochloric acid or nitric acid liquid corrosion inhibitor formulated and injected into the deffirent shape bettuwin fire tube boiler water tube descaling. Effect scale pickling solution is the role of dissolution, peeling and loose, so as to achieve the purpose of cleaning.
In the once-through boiler, the feed water pressure-fed by the feed pump, heated by the economizer, through the evaporator heating surface in which vaporized completely evaporated into steam. No fixed demarcation point between the economizer, evaporator and superheater heating surface, the flow resistance along the entire stroke by the working fluid pump to overcome the pressure head. Simple once-through boiler configuration, there is no bulky drum, the downcomer may be used or less, but the evaporator heating surface within which the working fluid flows discharged power can provide natural circulation, the pump needs to be borne by all.
To effectively and efficiently solve air quality problems, further improve people's quality of ambient air, Luliang city government issued the "Luliang city and surrounding tackling air pollution control action plan."
Luliang within the range of 1300 square kilometers around the city, "an area three counties' area under the jurisdiction of section: Lishi District, Riverside street nine township (town, street) a total of 54 villages; Luo Zhongyang County town of 12 gold villages; Liulin County, Lee Wan total of four villages; Fangshan County Dawu town a total of 11 villages.
1, the effective promotion of clean heating. Implementation of the "Clean Luliang city in northern winter heating pilot cities embodiments (2018-2020 years)" to determine the progress of the task, 2018-2019 before the end of September totaled clean heating transformation of rural areas 90000 (including within the scope of "no coal zone" rural households), where: Lishi District, 20000, 15000 Fangshan County, Zhongyang County 15000, 40000 Liulin County.
2, bulk coal coal strengthen supervision. Downtown "ban on coal zone" expanded to 88 square kilometers, the Willows, in the sun "and ban on coal zone" for the county built-up areas and the surrounding area 5 km, Fang Shan range "ban on coal zone" for the built-up area region, 2019 August 31, coal stoves and coal "double clear" within the scope of "no coal zone" implementation. "No coal zone" outside the prohibited than 1% sulfur, 16% ash content than coal for civilian. Determine civil bulk coal sales to crack down on low-quality coal sales practices.
3, to carry out comprehensive improvement of the boiler. 2019 August 31, all workers in the region (companies) industry, commerce, services, basic administrative units out of 10 steam tons / hour and coal-fired boilers, combustion zone ban (ban on coal zone) all residents within the range, all the villagers self-built coal-fired boilers out of the cell. Not "ban on coal zone" to be able to ensure clean winter heating, self-built coal-fired boilers shall be eliminated; it is difficult to ensure clean winter heating, self-built coal-fired boilers Always use clean coal substitute. And more than 65 tons of steam coal-fired boilers to complete the transformation of energy-saving and ultra-low emissions, low nitrogen gas boiler basically completed the transformation, to achieve ultra-low emissions coal-fired power plants. 35-65 tons of steam coal-fired boilers and more particularly to achieve stable discharge standards; co-firing biomass boilers ban coal and other fuels, efficient dust bags and other ancillary facilities. Non-alcohol-based fuels to burn in the name of blended chemical waste.
Horizontal deffirent shape bettuwin fire tube boiler water tube fuel tube defines the combustion gas boiler Classified DESCRIPTION internal combustion type first horizontal tube boiler (1) horizontal tube boiler combustion, which is defined as equal to the vertical axis of the boiler furnace housing floor and the combustion chamber body. Characteristics of the hearth (2) Horizontal combustion tube of the boiler combustion chamber of the boiler. Placed in the furnace burner nozzle, the high-temperature combustion of tobacco extends back to the furnace. Reentry space (reburn chamber) after leaving the furnace, into the second return channel near the recycled (smoke duct), the second time re-entry  reentry times, three secondary offset, recycled, the total number of retracement no more than four times, the most common three melted down. This type of boiler can be classified into a dry back boiler and all wet back boiler, the type of re-entry structure according to the rear space of flue gas. Back burning boiler flue gas space is made of refractory material reentry, all wet back boiler flue gas space defined by the reentry of reburning immersed in the water chambers. In addition, there is again a central combustion boiler: the rear wall of the furnace tank is sealed within the furnace shell, the flue gas back to the front by the inner wall of the tank furnace. This boiler can also be considered to be fully wet back boiler. Although dry Boiler simple structure, easy to damage the refractory hearth rear, rear tube plate often directly from the high temperature flue gas cleaning, waste type belong, and is currently almost no manufacturer it. While the all-trans Boiler wet complicated structure, but it avoids the problem of the smoke seal reentry space more suitable for combustion in a slight positive pressure. Therefore, at present in most plants, this type of boiler mostly all wet-back type 2. When the boiler water tube boiler capacity of Ge / 30ampt / h, the indicators are much better than water tube boiler fire boiler. The only caveat is that the combustion characteristics of gas requires a slight positive pressure ventilation, and therefore the furnace wall are high strength and tightness. The main types of water tube boiler of D-A and O A common characteristic of these three tubes are horizontally arranged, the horizontal burner installation, easy operation and maintenance, the small height dimension, the length of the flexible and suitable for continuous production of boiler tubes. D-type boiler tube vertical type double boiler, water wall right side, the left (right) to the convection bank, economizer, or superheater O type is needed between the double boiler drum vertical tube type, the tube pan long and short pot pipe. Both sides of the front waterwall tubes bent to each other at a lower portion, and is connected to the lower header. The front portion of the burner is provided with a one-pot type A longitudinal tube. Furnace and a conduit between the convection tubes on both sides of the pot and the lower header tube composition. A burner provided in the front portion. Boiler filter belt. 3 may be provided at rear of the boiler. Vertical boiler vertical axis is a vertical boiler case of small vertical boilers. It is generally disposed on the burner top. A central hearth furnace flue gas back to the bottom cover, and washed administered formed by heating, to separate the vapor from the upper portion; burner can also be provided in the bottom, the combustion in the furnace, and then rinsing the uprising pipe, water heating the tube within the housing.