discount water tube hot water boiler

Commissioning and operation of steam boiler replenishment operations: steam boiler, which runs before commissioning, should be carried out and how to specific operations? Their pay, generally are there? And, associated with steam boiler problems, what are we do not know? These questions are all about this kind of boiler steam boiler, so the following to learn and understand, to grasp, so that flexibility in the use in practice. 1. steam boiler, which runs before commissioning, should be how to operate and carry out specific? Steam boiler, which runs before commissioning work on specific steps and content, mainly as follows: Step a: open the inlet valve, while closing the steam outlet valve, and starts the feed pump, injecting water into the boiler. It should be noted that the use of demineralized water. When the water level rises to the low water level of the gauge, check whether it is stable, whether the decline phenomenon. Step two: steam heating boiler ignition, and in its initial stage should be slow, the speed is not too fast. Generally, the pressure is increased from an initial value to the time spent working pressure, it should be 3-4 hours. At the same time, but also on the water level to wash. For pressure gauge, check whether the display is normal, and into the hole at the boiler leaks and other issues.

35 tph ZZ series mid-temperature and mid-pressure coal-fired steam boiler project for paper industry

Founded in September 2016, Rashid Paper Mills Ltd. is a subsidiary of Rashid Group. The company is mainly engaged in the production of paper products such as writing paper, printing paper and offset printing paper. At present, the company has two independent production lines. With a capacity of 200 tons of paper per day, the company exports high-quality paper to the overseas market. In order to ensure the heat source supply of its production lines, Rashid Paper Mills Ltd. introduced a set of ZOZEN ZZ series mid-temperature and mid-pressure boiler from China. With a design pressure of 3.82 MPa, the boiler can provide sufficient high-temperature steam.

Why ash rear of the boiler heating surface steam temperature will reduce? In order to clean the boiler heating surface, reducing the exhaust gas temperature to raise the thermal efficiency of the boiler, heating surface, convection heating surface is mainly ash regularly. Since thermal efficiency boilers, such as maintaining the same boiler evaporation, the amount of fuel supplied into the furnace, the flue gas temperature and smoke velocity reduction furnace outlet, the heat absorption of the superheater heat transfer coefficient due to the temperature difference and the heat of the gas side lowering reduced, resulting in superheated steam temperature drops. The fuel quantity remains unchanged, the furnace exit gas temperature and smoke constant speed, due to increased steam flow and reduce heat absorption per unit mass of steam, superheater outlet steam temperature drops. Thus, convection heating surface ash, whether it is to maintain unchanged the amount of evaporation or the amount of fuel remains unchanged, so that both steam temperature drops.

Leshan City, Sichuan Province issued a notice "Leshan City to win the Battle of the blue sky plan", the program made specific control measures and methods for the quality of atmospheric environment, as follows.

1, and strictly control the total coal consumption. Timely expansion of high-pollution fuel combustion zone ban scoping, year by year break down total coal consumption reduction targets. In 2020, the city's total coal consumption is not more than 7.075 million tons, accounting for primary energy consumption fell to below 30%. Strict control of new construction, renovation, expansion of coal projects, new coal project implementation year coal consumption reductions times the amount instead. Wutongqiao, multiple Qianwei existing administrative areas with coal-fired boilers, in accordance with the total capacity and operation of the boiler coal consumption reduction principle of substitution, central heating facilities in the new base construction of the park, but it must be stable ultralow emission standards, and to eliminate the heavy pollution weather and atmospheric environmental quality standards as a prerequisite for a stable schedule, bear autumn and winter peak load shifting and eliminate future responsibility.

2, to carry out comprehensive improvement of the boiler. Increased inspection efforts to prevent the resurgence of small coal-fired boilers. The city is not implemented before the air quality compliance and stability, a ban on new or expanded coal-fired boilers. Municipal Economic and Information Technology Bureau, the Municipal Ecological Environment Agency jointly entrust qualified units, the implementation of the transformation of ultra-low emissions, the use of coal industry enterprises to carry out at least once a major air pollutant emissions supervisory monitoring every year. Ban on new fuel boilers and other cogeneration coal, fuel oil. New gas-fired boiler construction simultaneously low NOx combustion facilities, low NOx combustion is completed before the end of December 2019, the transformation of existing gas boiler. City and county built-up areas the implementation of ultra-low emission biomass boilers transformation.

3, bulk coal use to carry out special rectification. Using coal for use in all high-quality coal, coal mines by 2020, all built to retain supporting washing facilities, the city's raw coal rate of 90%. In accordance with the principle of progressive advance of Pingba first, and then the mountains, the "coal to electricity," which, according to local conditions in key areas to promote rural villages, "coal to electricity, coal to natural gas" work. A total ban on the circulation and use of low quality coal, bulk coal investigate unlicensed business activities according to the law, high-pollution fuel combustion zone ban is abolished bulk coal sales outlets, to promote electricity instead of coal, substitution of gas for coal, to promote the use of clean coal, advanced civilian stoves . In 2020, within 30 km surrounding county town and township range of the main city of almost no bulk coal use.

4, accelerate clean energy alternatives. The implementation of "gasification of the city, alternative energy, clean alternative" projects, subsidies to change the electric boiler. 2020 non-fossil fuels in primary energy consumption should increase to more than 38%. Research to develop new energy truck traffic right of way, to encourage policies on sustainable management, new and replacement buses, rental, sanitation, postal services, commuter, logistics and other light vehicles with electric vehicles. By 2020, postal services, urban delivery, light sanitation basic vehicle for the electric car, for the van passes light logistics vehicle essentially electric cars, buses central city using all new energy vehicles and reached the country six emission standards for natural gas clean energy vehicles.

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