coal fired industrial steam generator

coal fired industrial steam generator

Detection of gas steam boiler and test methods for precautions gas steam boilers and pressure vessels and piping, with the continuous progress of the times, the use of fuel combustion boiler is released by heat or other energy to heat water or another working fluid to produce specified parameters quality steam, hot water or other working fluid devices are widely used in organs, institutions, businesses and industries. At present, the Chinese economy undergoing rapid change, the boiler industry is more prominent, and technical performance close to the level of developed countries, formed the independent development of generation after generation capability of new products. Boiler is the economic development of the times indispensable commodity, and once the boiler in use, generally require continuous operation, can not be arbitrarily disabled, otherwise it will affect the production and life of the production line or area, so the boiler, the safe operation of pressure vessels is very worthy of study of. Boiler or heat using a fuel other sources of water can be heated in hot water or steam machinery. Pot original meaning refers to containers that hold water heated on the fire place burning stove refers to fuel, boiler and furnace boiler consists of two parts. Generating hot water or steam boiler may directly provide heat required for the industrial production and the people's life, by a steam power plant can be converted into mechanical energy, or through the generator converts the mechanical energy to electrical energy. Provide hot water boiler hot water boiler is called, is mainly used for domestic, industrial production also have a small application. Boiler steam is known as steam boilers, often referred to as boiler, used for power plant, ships, locomotives, and industrial and mining enterprises. First, the test content and methods of pot seized pot seized center and stood responsibility boiler and pressure vessel installation supervision and inspection of the whole network is the main purpose of the inspection work carried out by the installation, the boiler and pressure vessel crew statutory inspection fell at all. In the supervision and inspection work, the installation of Supervision and Inspection of pot seized center, strict implementation of the various companies of pot seized the station state and industry regulations and standards, the implementation of test plans and implementation programs, implementation, etc. quality assurance system played a supervision, promote and improve role. Many problems found at the scene, assess test results and play a guiding role for supervision and inspection of processing problems found. Boiler and pressure vessel and pressure pipe installation involved in the process of their projects safe operation of inspection and boiler pressure vessels and pressure piping installation units installed functioning of the quality assurance system to check the contents of Quality Supervision, Inspection of boilers and pressure vessels and pressure pipes. Content and external inspection methods, internal inspection and hydraulic test 1. test gas steam boiler pressure vessels and piping is the main content of the periodic inspection of the boiler. Pressure vessel and self-check items: including manufacturing data, construction data, safety accessories, protection devices, the appearance quality, the device designer, the support, the expansion pipe, the installation checks weld inspection, hydrostatic testing, installation weld appearance, insulation, platforms, escalators. Pressure pipe and a self-test program: including technical information, the pipeline route, slope, creep bulging measuring point, the position of the monitoring section and hangers, the appearance quality of the pipe, pipeline installation weld quality, weld quality hanger installation, pipe expansion hydrophobic conditions, hydrostatic testing, creeping inflation measuring point measuring the radial distance, creeping inflation measuring points on both sides of the pipe outer diameter or circumference measurements, pipes, drainage system installation. (1) external inspection. External inspection refers to the inspection, external inspection of gas steam boiler steam boiler operating state of the security situation boiler is generally one year. In addition to the normal external inspection, some of the following circumstances should also be external inspection: When reassembling the boiler began to put into operation; recovery boiler stop running when you run more than one year; after the combustion and boiler safety automation system has changed. (2) internal inspection. Internal inspection refers to the inspection of the steam boiler boiler security situation in the state shutdown, internal inspection general inspection every two years. In addition, when there are special circumstances, it should also be an internal inspection. (3) pressure test. Pressure test is a test pressure in the boiler water as a medium, a predetermined test pressure of the boiler and the strength member for receiving tightness. General hydrostatic test once every six years, the boiler can not be internal inspection shall be conducted every three years water pressure test. Hydrostatic test failed boiler must not be put into use.

To further reduce emissions of air pollutants and improve air quality of the environment, the Shanghai Municipal People's Government Office issued the "Opinions on accelerating the transformation of the city mentioned standard boilers of small and medium" (hereinafter "Opinion"), to accelerate the introduction of Shanghai City small boilers mentioned standard transformation respond positively.

Before the end of 2018, the district in conjunction with boilers and industrial distribution block, complete the development and revision of the Gas Pipeline Network Planning in this area. City, district authorities, according to the unit Gas Pipeline Network Planning and excavation plan, speed up the construction of natural gas pipeline network.

Variety of boiler fuel to replace natural gas, natural gas pipeline network (municipal pipe network to users outside the red line pipe) 50% of the cost of laying borne by the gas company; the remaining 50% by the district government and users each pay half, and encourage qualified district to provide more support. On the outskirts of the gas pipeline construction is temporarily unable to reach enterprises in the region, while ensuring security compliance cases, it can be in the form of non-natural gas pipeline, and implement an orderly transition after the completion of the pipe network. Encourage alternative gas supply business enterprises to provide gas price discount for the gas boiler.

10KV for the implementation of alternative electric boiler, 35KV and other business expansion project, to which the power supply capacity of the electrical part of the boiler, according to the city's non-resident business expansion project quota standards, engineering fees charged by half.

Environment departments to strengthen law enforcement and inspection of boiler units, fuel use, operation and maintenance, equipment maintenance, inspection, non-functioning facility once found, according to the law severely punished; at the same time, strengthen supervision and monitoring, if it is found excessive emissions, according to law strict punishment.

Boiler units and boiler mentioned standard transformation service units bear the main responsibility for the boiler safety issues involved. Site construction unit must have the appropriate boiler manufacture or installation (reconstruction) qualification, boiler commissioning personnel must have the appropriate special equipment operator certificate. Prior to the construction site mentioned standard boiler units to implement the transformation, boiler location should be informed in writing of special equipment regulatory authorities.

The district government is the responsibility of the main boiler to mention the transformation of the standard, according to the "ground principles" to promote the transformation of the boiler. Combined with the actual circumstances of the district reform implementation plan, accelerating the construction of facilities to ensure timely completion of the task of transformation, to ensure that policies and financial support in place.

Hot water boiler vaporization problem the whole solution 1, hot water boiler steam boiler of the phenomenon (1) boiler and pressure suddenly increased safety valve starts to emerge from the water and steam in the expansion tank. (2) the impact of sound water boiler, pipes to vibrate. Impact or the like occurs in the water (3) circulatory system piping. (4) a sharp rise in the temperature of boiler water, over-temperature signal overtemperature alarm occurs. 2, because (1) hot water boiler pot all the water vaporization operator negligence or misuse. Such as forced circulation hot water systems, at startup, the first boiler ignition, after the circulation pump. When shutdown, stop circulation pump, after stopping the boiler operation; or storage of fuel and heat in the boiler does not distribute all do, eager to stop the circulation pump is running and so grossly erroneous operation. (2) the occurrence of circulating hot water boiler outage, improper handling. (3) hot water boiler circulation system or severe leakage, device malfunction or constant pressure, causing a sudden drop in pressure in the boiler. This situation occurs mainly in the high-temperature hot water boilers. (4) cyclic interrupt occurs, although the boiler immediately stop running, but the remaining fuel in the combustion chamber and heat storage water vapor of the pan. This usually heat storage capacity in the furnace, the occurrence of a small pot of water volume of hot water boiler. (5) stop the pump sudden power failure or failure of the circulation pump. (6) the temperature of the hot water boiler, the pressure indicating instrument malfunction, resulting in erroneous judgment. 3, the reason the hot water boiler local vaporized boiler water (1) within the reservoir portion of the tube boiler scale or debris, the local destruction of the boiler water cycle. (2) a boiler structure unreasonable or undesirable combustion conditions, resulting in the line between the parallel deviation is too large heat boiler or boiler water uneven flow distribution, resulting in local overheating vaporized. Local and overall circulation circuit (3) can not form a natural circulation boiler, causing local overheating of vaporized water circulation circuit occurs once the pump stops and the like. 4, treatment of hot water boiler steam boiler (1) stops running hot water boiler. (2) Check the hot water boiler and heating cycle causes vaporization system, and processed. (3) hot water boiler and hot water heating system natural circulation loop, loop back to the natural valve open road. (4) When a sudden power failure, the pump stops running, stopping in the boiler water cycle (forced circulation boiler), the temperature of the boiler water continues to rise due to heat accumulation surface of the combustion chamber of the boiler water to steam, because of a large water capacity If handled properly, usually does not cause accidents pot of water vapor. For hot water boiler tube DC (most of this is domestically produced boilers), because of its small water capacity, when a sudden power failure stop the pump, resulting in more accidents pot of water vapor. Hot water boiler should have suddenly prevent or mitigate the pot of water vapor measures to stop the pump during a power outage. China is now using more is to add water to the boiler and the boiler outlet slow release of steam, the pot of water on the one hand to maintain liquidity, on the other hand reduce the water temperature, up until the elimination of the combustion chamber of the regenerator. Some install the spare circulation pump driven by the internal combustion engine, when a sudden power failure, start the engine, but poor when asked to take into account, because the engine is not instantaneous will be able to start. There is provided a self-standby power supply or generator.

How to use the heat generated by the boiler and the difference in species: the product on the site, whose main product is all kinds of boilers, that is, it is for a variety of different types of boilers. So, based on this case, and in order that we can understand the site in different products, from the boiler will be below the overall, to learn their work, so that we can get some new knowledge, and then to expand their the amount of knowledge, rather than on their learning path has been at a standstill. 1. heat energy generated by the boiler, which can take advantage of? In addition, it produces different media, whether there is the corresponding species? The heat generated by the boiler, either directly, but also by the steam power plant, which is converted into mechanical energy, and even further by the generator to convert mechanical energy into power, again using the same. Being produced in different media, then, there will be different types corresponding. For example, the hot water boiler, then, is for the hot water boiler to produce steam for the steam boiler. 2. On the boiler, can install a pressure gauge? If so, then what is its role? Can I install a pressure gauge on the boiler, which in its boiler manufacturer box appears, is possible, but also will not have any problems. And its effect on the boiler, is to measure the internal pressure of the boiler, so that the operator according to their specific values ​​can be appropriately adjusted to the combustion boiler, to adapt load changes, and thus, to ensure proper and safe operation of the apparatus .

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