Recently, Shaanxi Province, issued a "Boiler Air Pollutants Emission Standards" ( "Standards"), the "standard" in the concentration of air pollutants emission limits thermal power boilers and industrial boilers, we have developed a monitoring requirements.
Thermal power generation boilers including boilers of various capacities and various gas turbine capacity, fuel main types of coal, natural gas, oil, biomass, like other gas. Use gangue, oil shale, petroleum coke, fuel, sludge and other coal-fired power boilers reference emission limits fired boilers performed.
Industrial boilers including industrial boilers, various types of fuel capacity mainly coal, gas, oil, biomass, and so on. Boilers using coal, coal water slurry, coal waste, semi-coke, petroleum coke, oil shale and other fuel fired boilers performed with reference to emission limits. Using alcohol fuel (e.g., methanol, ethanol, dimethyl ether, etc.) with reference to the boiler exhaust gas boiler limits performed. Oil and gas dual-fuel boiler in accordance with the type of execution are oil-fired boiler and gas boiler emission standards. Other types of fuel mixed fuel boilers by performing more stringent emission standards.
Periodic operation of boiler blowdown requirements a) to be performed when the boiler discharge pressure or low fire load, and should be stopped short; b) To the sewage before the boiler water level is raised to close the upper limit of normal level, the sewage water level to closely monitor, prevent boiler water; c) operates the drain valve, and if it can not be directly observed when the water level of the water level gauge. Water level monitoring personnel should contact the joint sewage; d) must discharge once every eight hours. If a common multiple boiler blowdown manifold, each boiler and the check valve when the outfall nor prohibited while sewage; E) for other operations not sewage, if necessary to perform other operations, stop sewage; f) when the sewage, first slowly open the valve opening closer to the boiler, and then intermittently opening and closing the valve opening away from the boiler quick, rapid discharge. After discharge, quick opening valve is closed first, and then slowly open valve closed, and then open the valve slightly open fast, close the water discharge after exhausted; End g) discharge operation, the discharge valve is closed, should be checked to confirm no sewage pipe outlet leakage.
Textile mill fire tube steam boiler feed pump water treatment method which currently boiler steam boiler is commonly used as a textile mill, used for disinfection, medicine and other suffering. For the pharmaceutical industry this particular area is concerned, the requirements for steam and hot water level is relatively high. This step treatment that becomes more important, the following small series bring you a quick look at the water treatment methods, results and so on. Simply put, the purpose of boiler water treatment is provided by the addition of certain equipment, such as impurity removal of boiler water softening treatment, prevention of boiler corrosion or fouling occurs, in order to ensure good quality of steam, but also conducive to the boiler thermal efficiency, in terms of the mill, which is more in need. Textile mill steam boiler water treatment method: (1) In general, when the boiler water treatment, taking into account their own situation, and the situation boiler boilers and other areas. Vapor pressure for evaporation and a small part of the boiler to be equipped with oxygen equipment in accordance with the actual situation, while the outer pot for the chemical treatment. (2) If the local water contains more impurities, water should be filtered before or during precipitation, so as to avoid blockage of the boiler water treatment equipment, water treatment effect is low, the efficiency is not high. (3) In addition, we should note that, during the boiler water treatment equipment selection, cut not covet low price, ease of use and other considerations while ignoring the quality of the equipment, so not only can not be effective treatment, but can also result in energy waste and reduce the life of the boiler. You know, for a long time corrosion and fouling it is easy to make low thermal efficiency of boilers, boiler unnecessarily severe accident. In short, this mill steam quality and environmental protection fields of high, must be strictly water treatment steps, in accordance with a qualified water treatment methods and standards.
There are three common expressions for the output of hot water boilers, namely Kcal/h, t/h, and MW. So what do they mean, and what is the conversion relationship between them?
2. Locomotive Boiler: This is a fire tube. This is a device which is used to create steam from water by using heat energy. This is a horizontal drum axis, multi-tubular, natural circulation, artificial draft, forced circulation, medium pressure, solid fuel fired fire tube boiler that has an internal fire furnace.Online chat
Feed check valve regulates the flow of water into the boiler and prevents the backflow of water in case of failure of the feed pump. Steam stop valve regulates the flow of steam that is produced in the boiler to the steam pipe, and may also be used to stop the supply of steam from the boilerOnline chat
In small coal and oil captive power plants, the main FWP could be also horizontal ring section or axially split type and the booster pumps horizontaly single stage end suction type. Sulzer provides the following barrel casing as well as ring section and axially split pumps as main feed water pumps for coal- and oil-fired power plants:Online chat
Aug 22, 2018 · There are different components present in feed water and steam circuit of boiler and we should know some essential components of these circuit and these are Economizer, boiler drums, water tubes, and super heater. EconomizerEconomizer is a heat exchanger which takes heat from the flue gas, and increases the temperatureOnline chat
Jul 02, 2016 · In fire tube boiler, the hot gases passes through the tubes and boiler feed water in the shell side is converted into steam. Fire tube boilers are generally used for relatively small steam capacities and low to medium steam pressure. Fire tube boilers are competitive for steam generation rated up to 12,000 Kg/hour and pressures up to 10 Kg/cm 2Online chat
May 06, 2019 · It is a non-return valve fitted to the shell slightly below the normal water level of the boiler. Feed Check valve regulates feed water pump supply to the boiler. It also prevents backflow from the boiler to the pump when the feed pump fails. Perforated pipe used to distribute the feed water uniformly in the boiler. Blow off Cock:Online chat
Turbo-Feed Boiler Pump. The systems having steam turbine driven feed pumps usually have a high pressure water tube installations. The turbo-feed pump is a two stage horizontal centrifugal pump, which is driven by an impulse turbine.Online chat
Fire Tube Boiler. The universal type of steam boilers is the smoke tube or fire tube boiler where the heat and gases of combustion (from furnace) pass through tubes that are enclosed by water. While in water tube boilers, water passes through tubes. Mostly used boiler in small and medium industries with different fuels and steam pressure requirements.Online chat
Jan 20, 2017 · A rare sight of one of these actually working under steam and pressure. Despite the leaks.. Horrible little pumps when put to use for their intention.Online chat
The feedwater system is composed of two sources of water that deliver water to the boiler to be converted into steam. The feedwater consists of the condensate return water and treated makeup water. Feedwater heaters extract the waste heat from the spent steam to preheat the boiler feedwater.Online chat
We will learn about fire tube boiler parts in the sections below. Types of Firetube boilers. Package boilers. Most of the fire tube boilers now come in a complete package.The main parts of the package are : oil burners; fuel pump; forced draft fan; feed pump ; automatic control system. Boiler mountingsOnline chat
Jun 10, 2018 · 1. Feed pump: Feed pump is use to pump the water in boiler for continuous working. The feed pump is run by the electricity or by an steam turbine. The steam use to drive the turbine taken by the boiler itself, which increase the boiler efficiency. 2. Super heater: The steam generate by the boiler is saturated steam.Online chat
Aug 30, 2016 · How to Size a Boiler-Feed Pump. The pitch of the pipes. If the steam and condensate flow in the same direction, the pipes should have a pitch of at least 1 inch in 20 feet. In counter-flow pipes, the pitch must be at least 1 inch in 10 feet. If the pitch isnt there, the condensate is going to return more slowly. The type of radiators.Online chat
Large industrial condensate pumps may also serve as the feedwater pump. In either case, to force the water into the boiler, the pump must generate sufficient pressure to overcome the steam pressure developed by the boiler. This is usually accomplished through the use of a centrifugal pump.Online chat
Aug 30, 2016 · Here, too, youll find most feed pumps come with stock motors capable of discharging at 20 psig. Because of the larger size of a boiler-feed pump's receiver, compared to the size of a condensate pump's receiver, high temperature water isnt usually a concern in a steam-heating system.Online chat