overheat protection horizontal oil fired hot water boiler

On January regular press conference, Secretary, Ministry of Environment environment atmosphere Liu Bingjiang said: Through the joint efforts of the whole society, national ambient air quality is generally improving. But issues of current emissions of air pollutants is still high, industry structure, energy structure is still prominent, air pollution control remains to be done.

2019 is to win the battle of the blue sky in tackling it. China Environmental Science Research Institute Professor Xue Zhigang said China is still partial to change the energy mix of coal to Beijing and Tianjin, for example, though not local, but coal consumption per unit area of ​​5 to 6 times the national, so to adhere to focus total coal consumption areas under control.

First, the structure of coal-based energy, coal pollution characteristics significantly. Shaanxi, Shanxi coal-producing province is also the province's coal consumption, coal consumption Fenwei plain more focused, coal accounted for nearly 90% of energy consumption, much higher than the national average of 60%.

Second, the emphasis on regional industrial structure, industrial pollution emissions from large. Fenwei plain alumina, coke, iron and steel, coal, chemical and other heavy chemical industry, small-scale enterprises, low level of equipment, and most enterprises have yet to achieve a stable discharge standards, ultra-low emission completion percentage less than the transformation of thermal power enterprises in Beijing, Tianjin the level of pollution control needs to be improved.

Third, the prominent road transport pollution, emissions from large heavy vehicles. Fenwei plain is an important channel Shaanxi, Inner Mongolia and Shanxi coal Sinotrans, common to road transport, heavy industry-oriented industrial structure to further increase the pressure of road transport.

Hebei Province in 2019 government work report, determined to win the battle of the blue sky, ultra-low emissions to accelerate the transformation of key industries and promote clean coal casual alternative, "scattered dirt" dynamic business continuity cleared, Hebei Province, the year will be 10 million tons of coal Yajian thermal power 500,000 kilowatts.

Tianjin in 2019 to promote low-nitrogen transformation and construction work clean diesel transformation of mechanical gas-fired boilers, in an orderly urban and rural residents clean alternative to coal for heating, PM2.5年均浓度持续下降. In addition, Guizhou, Gansu, Heilongjiang and other places have made the coal control target.

It is reported that, after the heating season this year, the Ministry of Environment will work with ecological scientific and reasonable arrangements around 2019 bulk coal management plan. Regional authorities will further strengthen joint prevention and control, continue to implement the autumn and winter tackling action in key areas. In the future, China will focus on promoting the Beijing and Tianjin and the surrounding areas, as well as bulk coal governance Fenwei plains, to the 2020 heating season, the basic completion of the plains to live and bulk coal for heating in winter instead.

Safe use of chemical plant steam boilers and safe use of chemical plant maintenance measures and maintenance measures of a steam boiler, steam boiler how to prepare for chemical corrosion: preparedness, it is necessary to analyze the problem from the root, it is necessary to corrosion from steam boiler elements lead to corrosion of departure, to find a solution. In principle, resulting in steam boiler corrosion is an electrochemical corrosion. Boiler film surface layer of the electrolytic solution absorbs moisture in the air and CO2 constituted, or a metal surface composed of many small primary batteries many weakly acidic, neutral dissolution, iron as the anode, electrons are lost oxidized to Fe2 +, the positive electrode the oxygen dissolved in water to obtain an electron is restored. Corrosion biological structure is made loose, not diffusion barrier profile metal ion etching process will be performed successively. Second, how to deal with chemical steam boiler sewage: sewage is also considered an indicator of boiler steam boiler, now say environmental protection, environmental protection sewage to be called within a certain range. Sewage discharge steam boiler to do less ground row row, that is, the number of sewage to be more, but the amount of each drainage control in a small area, both to ensure that does not affect the steam supply, but also make pot of water quality has been in control It is within specifications, and a large shake does not occur, which is very beneficial for boiler maintenance. Third, the chemical plant steam boiler protection and maintenance: 1, the burner should be every two months removed from the boiler, careful eradicate coke dust and other foreign matter. Photocell light-receiving surface scrub once a month, to keep the fuel filter and clean the filter function; carefully clean the filter inside the oil pump, not to damage the gasket. Not oil-burner idle, to avoid damage to the pump. 2, the protective boiler maintenance, it is necessary to cut off the power supply, it is necessary to relieve pressure. 3, pulling the safety valve once a day, to prevent rusting failure. 4, the water level gauge should always be kept clean, flush purge valve open once a day, to ensure water clarity. 5, when the boiler suspend the operation time is longer, should cut off the power, and do maintenance work: (1), dry maintenance, shutdown after the release came out water, dirt washed clean the furnace, slow fire the pot with a burner drying (combustion time not too long, to avoid damage to the boiler), and then after all the gas boiler drain, everything pipeline valves closed, to see once every three months. (2), wet maintenance for a period not exceed one month shutdown of the boiler, furnace shutdown after water release, discharge clean fill with water, cut off the power, close the valve. 4, the water level gauge should always be kept clean, rinse the purge valve is opened, the water level in order to ensure a clear day. 5, the boiler stops longer running time, cut off the power, and do maintenance work: (1), dry maintenance, shutdown after the release came out water, dirt clean the furnace, slow fire the pot with a burner after drying (burn time not too long, to avoid damage to the boiler), then drain all of the gas boiler, all pipe valve closed, checked every three months. (2), wet maintenance for a period not exceeding one month shutdown of the boiler, furnace shutdown after water release, discharge and clean fill with water, cut off the power, close the valve.

How to maintain steam boiler 1, when maintaining boiler, must cut off the power supply, must release pressure. 2, burners should be removed from boiler body every two months, and other foreign bodies such as carbon deposit and dust should be removed seriously. The photo-electric tube is polished once a month. The fuel filter should always be cleaned and filtered. Carefully clean the inner filter screen of the oil pump and do not destroy the gasket. The burner shall not run without oil to prevent damage to the oil pump. 3, the water level gauge shall be kept clean at all times and rinsed once a day by opening the cleaning valve to ensure the water level is clear. 4. The safety valve shall be pulled once a day in case of rust failure. 5, When the steam boiler stops running for a long time The power supply should be cut off and the maintenance work should be done: (1) dry maintenance, discharging the furnace water after the furnace is stopped, rinsing away the dirt in the furnace, drying the pot with a small burner fire (the burning time should not be too long, so as not to damage the boiler), Then, after all the boiler gas has been discharged, all pipe valves will be closed and checked every three months. (2), wet maintenance shall be applied to boilers with a period not exceeding one month, and the boiler water will be discharged after the shutdown, and the clean and full water will be discharged. Cut off the power supply and close the valve.

Wns oil and gas boiler in Russia

ZG boiler’s boiler was exported to Russia again. The boiler that was exported this time was a WNS series boiler, which is a 7MW gas-fired hot water boiler. Its main purpose is to heat the hotel.