standard procedure for package boiler

About steam standard procedure for package boiler water hammer faults and solutions 1, boiler water hammer phenomenon a. Issued boilers and pipes at a certain rhythm crash, sometimes loud sound, accompanied by strong vibration water pipes or steam pipes. B. gauge pointer swings back and forth, consistent with the frequency of the vibration noise. c. In the water hammer severe, may lead to the respective connecting members, such as flanges, weld cracking, breakage of the valve. 2, the steam pipe Water Hammer process a. Reduced steam supply, close the main steam valve if necessary. b. Turn hydrophobic superheater header pipe and the steam trap on. c. drum level is too high, the sewage should be appropriate to maintain the normal water level. d. strengthen water treatment work to ensure water supply and boiler water quality, prevent priming. e. When the water hammer arrestor, and the frame status check pipes, flanges, etc., such as a warm-again without damage for the steam supply. 3, the process water pipe water hammer a. Open air valve on water pipe exclude air or steam. b. Enable alternate water supply pipe to the boiler feed water continues. If there is no backup line, take appropriate measures to deal with the fault processing pipeline. c. Check the water supply to the water pump and check valve, if the problem timely maintenance. d. Hold feedwater temperature equalization.

Overvoltage protection gas steam standard procedure for package boiler are several: the current overvoltage protection equipment including gas steam boiler safety valve and pressure controller. Safety valves to vent off pressure overload, the pressure controller is used to interrupt the operation of the power to force gas steam boiler burner. How to adopt a more provincial gas gas boiler gas-fired boiler | fuel boilers | steam boiler Environmental Equipment Co., Ltd.

Accelerate the implementation of the relevant arrangements for the deployment of national, provincial and develop natural gas and other clean energy. According to Yi gas of the gas, the electric power should be the principle, and actively guide enterprises to implement energy clean energy alternative, 2020, the basic completion of provincial trunk pipeline construction, the basic realization of natural gas every county, to further improve the urban and rural distribution pipe network construction , the city's natural gas consumption reached 570 million cubic meters, the proportion of non-fossil fuels in total energy consumption to reach the provincial requirements. Orderly development of hydropower, nuclear power is safe and effective, optimized wind energy, solar energy development layout, local conditions to develop biomass energy, geothermal energy and so on. Where the conditions of availability of resources, to encourage the development of county biomass cogeneration, biomass briquette standard procedure for package boilers and biogas. Orderly development of natural gas peaking power plants and other interruptible user, in principle, to new natural gas cogeneration and gas chemical projects. Continue to implement the priority generation and purchase of electricity system to ensure the city's renewable energy generation full protection of the acquisition.

Strict new coal project access, the implementation of the reduction of coal instead. According to Blue Sky to win the Battle of three-year action plan calls for no new 35 steam tons / hour high-polluting fuel boilers. By 2020, the city's coal accounts for the proportion of total energy consumption fell to 42.8% or less, the city's total coal consumption decreased by 5% compared with 2015. According to focus on the use of coal and clean use of principles, focusing on reduction of non-coal for electricity, increase the proportion of electricity from coal in 2020, the city's electricity and central heating coal proportion of total coal consumption reached provincial requirements. Continue to promote alternative energy coal and oil, replace reached the provincial requirements.

Vigorously for shutting down environmental protection, energy consumption, safety and other 300,000 kilowatts coal-fired units of non-compliance, according to plans to phase out other coal-fired thermal power generating units. For shutting down the unit's capacity, coal consumption and emissions targets, allowed to trade or replacement, can co-ordinate arrangements for building the capacity of ultra-low emission coal-fired units. Strict control of new coal-fired units installed capacity in the region rely on new clean energy generation and transmission to meet outside the main electricity consumption.

Consolidate construction achievements combustion zone ban, increase efforts to eliminate small coal-fired boilers. According to Blue Sky to win the Battle of three-year action plan calls for phasing out the 10 steam tons / hour and coal-fired boilers, the county level and above urban area basically eliminated tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities ; 10 basically eliminated city steam tons / hr steam 35 tons / hour of coal-fired boilers; 35 t steam / hour and more polluting fuels and ultra-low emissions boilers complete energy transformation; low-nitrogen gas boiler is substantially complete transformation; urban built District ultra-low emission biomass boilers implement reform.

This paper introduces the common faults of steam standard procedure for package boiler and submersible pump steam boiler water level device, causes and solutions. 1, the common problems of steam boiler water level device and its causes: 1, the installation of water level device is too low; 2, water level device, water pipe is too thin; (3) when there is low level device or when using automatic display instrument of water level, there is only one level device on the boiler; 4, water level device discharge water screw plug no ground drain pipe; 5, one water level on the drum is valid, while the other is damaged; 6, the cock on the water level cannot be screwed; 7, the cock on the water level is leaking, the water leak; 8, the false water level is displayed on the level meter; 9, the pot is not screwed up; 7, the cock on the water level is leaking, 8, the false water level is displayed on the water level device; 9, the pot The water level of the two water level devices on the cylinder is inconsistent; the glass tube of the water level device is often broken; 11, there is no protective device for the glass tube of the water level device; 12, the high and low water level indicator on the glass tube plate of the water level device does not indicate the red line; 13, water level glass tube plate is too dirty, the water level can not be observed clearly. The main reason for the above 1 / 4 is the dislocation of design, installation or modification. When a steam boiler is equipped with a low-level water level, there is only one level on the drum, because the balance of the low-level water supply is short-circuited (it was not detectable at the time). The resulting low water level shows a high water level (so-called full water). And the water level on the drum shows a low water level (or even may not even see the water level), when the boiler worker will check the water level on the drum because he is unable to immediately determine the actual water level of the boiler. Therefore, the container will delay the time and the boiler serious water shortage accident. Some even over-trust the display water level of low-status water level devices, and take a large number of sewage discharge, mistakenly treat the steam boiler water shortage as full of water accident, accelerate the occurrence of accidents, there is a precedent for the occurrence of such accidents. Then, the main cause of the above-mentioned 5 # 9 failure is that the boiler does not flush for a long time and does not carry out daily maintenance, which causes the water level of the boiler to be kept in operation for a long time. Cork rust, steam, water pipe clogging, or lack of fillers or aging deterioration. The phenomenon of false water level, except that steam, water pipe or cock is blocked, may also be caused by the dislocation of the connection between steam, water pipe and water level apparatus; Steam, water cock handle position misplaced resulting in cock closure, but also due to poor water quality, steam and water in the boiler concomitant and false water level. The main cause of glass tube breakage of water level apparatus is that the center line of steam and water cock is not in a straight line, the glass tube has bending stress, and the glass tube has no expanding gap. The water level device is being blown directly by the cold air at the window, as well as the poor quality of the glass tube and so on. Submersible hydropower Pumps are mechatronics high-tech products. In recent years, great progress has been made in seal, insulation, cooling and monitoring of submersible pump, and the automatic coupling of pump and outlet pipe has been successfully realized, so that the popularization and application speed of large caliber submersible pump is accelerated obviously. As a result of saving investment in engineering, the submersible electric pump station can be installed and overhauled quickly, the operating conditions are greatly improved, and the reliability and service life of the equipment are significantly increased. At present, our country not only produces and installs axial-flow pumps and mixed-flow pumps with large caliber below 900 mm, but also produces large-scale submersible pumps with a diameter of 1.4 meters and 1.6 meters for submersible electricity. The technical popularization of pumping station has laid a good foundation. Divers are not afraid of flooding, but also have the advantages of rapid removal and installation of good mobility, can cope with the sudden rise of water level, chestnut chamber flooding and other sudden changes, large-scale submersible electric pump changes.

Yan D. - LinkedIn

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