Temperature protection device during the fuel steam to buy small boiler of high pressure over temperature to regulate protective effect of temperature protection is an important procedure fuel steam boiler safe operation is particularly important for the regulation and protection of the boiler temperature of the fuel vapor; at the same time to regulate in the fuel steam boiler overtemperature Protective effects. Conventional boiler temperature protection means is a bimetallic temperature controller. Flame protection: prevent explosion of the furnace, steam boiler fuel flame protection means must be provided, is a function of combustion (including ignition, combustion or misfires when halfway off, typically within five seconds reignition monitoring the furnace, a second the run off into the oil (gas) solenoid valve, and turns on and audible alarm signal, when the blower continues to operate, the residual gas was purged of combustible furnace, after 20 to 30 seconds purge, automatically cut off and various auxiliary blowers supply the boiler operation stops. role is to monitor the flame signal the presence of a flame or an interrupt control apparatus mainly using a photomultiplier tube, a photovoltaic cell and photosensitive resistance, they have an infrared type or ultraviolet type a photoelectric conversion element, the working principle of the light converted to the corresponding strength of the radiation strength of current and the linear output state, sometimes weak induction current, through amplification, in order to have an effect on the controller.
3, coal combustion to buy small boiler of high pressure technology
This technique is performed by coal-fired boilers, pulverized coal amount to be injected into the furnace in place, so that the combustion grate base layer, an appropriate amount of the suspension increases combustion energy can be obtained a certain rate. As for boiler fuel, gas type, you can replace the old with the new energy-saving burner, behind the burner to be transformed.
[6], oil-fired to buy small boiler of high pressure, must configure a more complex fuel system (especially the combustion of heavy oil, while residue), such as tanks, pumps, filters, heat pipes, etc., must occupy a certain space, and gas boilers, then No configuration caisson. The access network can simply supply gas conduit, of course, need to set the pressure regulating means and a solenoid valve on the pipe, valve accessories cushion so as to ensure safe operation of the boiler.
Since "strong piece autumn and winter air pollution in a comprehensive way, determined to win the Battle of Hebei blue sky" press conference was informed, Hebei Province, to make arrangements for winning the Battle of the blue sky, requested the preparation of implementation of the blue Battle Hebei Province Government Information Office held three-year operational plan and cleaning winter heating three-year plan to ensure that changes every year, three years, a large bear fruit.
Really good job of air pollution prevention and control work in the past year, Hebei Province, adhere to the scientific governance haze, collaborative governance haze, haze iron-fisted rule, will coordinate development of pressure energy, reduce coal, running enterprises, dust, vehicle control, by Green et key tasks, play a set of tackling the problem, the main root of the problem "combination punches." Where the complete substitution of gas for coal, electricity-generation coal transformation 2,537,000, Yajian steel production capacity of 27.54 million tons, 21.32 million tons of iron, coke 8.088 million tons, 10.68 million tons of coal, Reconstructing "scattered dirt" Enterprise 38785, off stop banned enterprises 68747, the new afforestation area of 741 hectares. At the same time, also launched a special inspection of law enforcement inspectors and four comprehensive management of air pollution, to carry out unannounced visits to check the dark, spot checks, cross-law enforcement, road law enforcement to crack down on environmental violations, and earnestly solve the "last kilometer" problem.
Director, Office of Atmospheric Hebei Province, the provincial Environmental Protection Bureau Director Gao Jianmin, said: "This year we will develop science of air pollution control 3-year operational plan, a clear timetable, route map, to promote the key cities 'insurance bottom line, back ten' focus on tackling to ensure that air quality 'changes every year, three large effective', and strive to Shijiazhuang, Hengshui, Tangshan City, the first exit after ten. we will actually improve air quality and enhance, to better respond to the concerns of the masses, improve people's livelihood well-being, and enhance people's sense of well-being obtained. "
