When purchasing a gas boiler, users are very concerned about the boiler parameters, price, cost, etc. Parameters such as steam temperature, steam pressure, etc., are often related to customer needs. When the user inspects the natural gas boiler, the process of inspecting the boiler manufacturer usually compares the strength of the manufacturer, compares the procurement cost, and the operating cost.
Nowadays, the market share of industrial boiler is getting higher and higher. Washing and ironing, packaging machinery, biochemical industry and food industry will purchase it as a complete set of necessary equipment. The industrial boiler uses high quality stainless steel as the main material and imports high temperature magnesium oxide powder as the sealing material, so its temperature resistance is very strong. But when choosing and purchasing this kind of boiler, should pay more attention, through the omni-directional judgment to choose and purchase the high cost-effective boiler. So what are the precautions in the selection and purchase of industrial boilers?
1. it is necessary to pay attention to whether the noise of equipment has passed the election to buy industrial boilers. Compared with the domestic boilers, the noise reduction requirements of domestic boilers are lower, but it is still necessary to pay attention to whether the noise of the equipment is too large, to prevent noise pollution and to affect the quality of the industrial environment. In general, the large vibration produced by the boiler noise will reduce the stability of the system, reduce the service life of various accessories, and then reduce the overall life of the boiler.
2. pay attention to the quality of the main material (external anticorrosion or not) the main material of industrial boilers will directly determine its heat resistance. Most industrial boilers use stainless steel outside, try not to choose thinner, lower pressure resistance materials; In addition, it is necessary to pay attention to whether the exterior of the boiler has been treated with anticorrosion. Due to the corrosion in the air under industrial conditions, the moisture content is more, so as to avoid the external corrosion of the boiler and reduce the beauty or corrosion of the core components, thus affecting the normal work of the boiler.
3. pay attention to environmental protection, energy-saving how to usually industrial boilers to run 24-hour round the clock, so we must pay attention to its environmental protection when selecting and purchasing, to avoid excessive power consumption to generate a large amount of electricity costs; In addition, it should also pay attention to its environmental protection, especially in areas with strict environmental requirements, should choose the best environmentally friendly industrial boiler equipment.
4. pay attention to whether there are safety protection devices (such as overtemperature and pressure alarm systems) most of the modern high-end industrial boilers use automatic control, especially when choosing and purchasing whether there are safety protection devices, such as whether there is an automatic water supply system, Anti-dry fire protection, over-temperature alarm, over-pressure automatic pressure relief, which plays a decisive role in the use of safety, do not ignore this problem when purchasing.
For winning the Battle of Blue Sky, Jiuquan City, Gansu Province, issued in 2019 action to implement the program, which requires: accelerate the implementation of the transformation of ultra-low emission thermal power and other key industries. Details are as follows.
First, in an orderly clean heating in winter
Seriously implement the "clean Gansu winter heating overall plan (2017-2021 years)" and "clean Jiuquan City winter heating embodiment (2017-2021 years)", combined with the overall urban planning and development of real priority to the development of central heating and accelerating focus heating pipe network construction and transformation progress, and constantly improve the urban central heating cover, reduce civil bulk coal usage, central heating difficult coverage areas, speed up the implementation of all types of decentralized clean heating.
Second, the full completion of the comprehensive improvement of coal-fired boilers
And by phasing out the demolition, clean energy transformation, environmental compliance management, etc., complete with coal-fired boiler remediation tasks. Increase efforts to eliminate small coal-fired boilers, the county level and above urban area (high-tech zones, except through the open area, industrial parks and industrial agglomeration area) basically eliminated 10 tons of steam per hour and coal-fired boilers and furnaces tea, operational stove, grain storage and drying equipment, coal-fired facilities, in principle, to 35 tons of steam per hour, the new coal-fired boilers, in principle, to the rest of 10 tons of steam per hour, a new coal-fired boilers.
Third, strengthening the total control and the clean use of coal
Issued according to the provincial total coal consumption control objectives and annual coal consumption indicators, strengthen coal total control. New coal coal project implementation reduction alternative, reduce the proportion of coal in energy consumption, improve power coal in total coal consumption in proportion.
Fourth, accelerate the development of clean energy and new energy
Gradually increase the proportion of non-fossil energy consumption, the orderly development of hydropower, optimizing wind, solar energy development layout, coupled encourage the promotion of coal-fired biomass power generation, local conditions to develop biomass energy, geothermal energy, to ensure that by 2020, the city's non-fossil fuels in energy the proportion of total consumption reached 20%. Increase renewable energy consumptive efforts to solve the basic water abandoned, abandoned wind, abandoned light problem.
The key to avoiding that the furnace excess air is reasonable air distribution and monitoring control means which adapts. Monitoring means are CO2 or O2 content measurement method for measuring oxygen gas boiler is usually carried out, because the combustion of gas boiler a slight positive pressure, the seal is easy to solve the problem, the oxygen content is measured more accurately reflect the excess air coefficient values. Oxygen measurement techniques now commonly used zirconia-type oxygen analyzer constant temperature, continuous on-line measurement of the oxygen content of the flue gas. The flue gas oxygen content as a reference, the correct air-fuel ratio adjustment, a low oxygen combustion.
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