gas oil fired steam generator

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.

To proceed from reality, should be in accordance with the electric power, gas should the gas, the coal should be coal, should be hot the thermal principle, promote the use of all kinds of clean energy for winter heating cleaning. In order to reduce air pollution and protect people's warm winter as a foothold to enterprises, government promotion, residents can withstand the principle of gas after the first change to gas will change in gas assurance, the price is acceptable on the basis of sound promote the "coal to gas" and central heating engineering, in district heating supply pipe network can not cover, vigorously implement the replacement of coal-fired power heating project.

Good job of marketing system storage capacity for natural gas. Accelerate the construction of natural gas transmission and distribution network, the new natural gas volume priority for life and severe winter areas of urban air pollution and coal for heating alternative. In principle, to new natural gas cogeneration and gas chemical projects.

Accelerate agricultural and pastoral areas "coal to electricity," the process of upgrading the power grid. Coordinate development of power transmission project construction, etc. are encouraged to promote the regenerative electric heating. Around on the "coal to electricity" project supporting grid should be given support, coordination "of coal to electricity," "coal to gas" land for construction.

In accordance with national requirements, shutting down environmental protection, energy consumption, safety and other 300,000 kilowatts coal-fired units of non-compliance. 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.

According to air quality improvement requirements to accelerate the delineation of high-pollution fuel combustion zone ban and to expand the scope of, and actively promote the elimination of small coal-fired boilers. The county level and above urban area basically eliminated 10 tons of steam per hour and coal-fired boilers and tea furnace, stove and other operating coal-fired facilities, in principle, to 35 tons of steam per hour, the new coal-fired boilers, in principle, other areas on no new 10 tons of steam per hour of coal-fired boilers. While banned out of coal-fired boilers, pressure boilers market regulators cancellation of registration certificate to use.

Generating hot water or steam boiler may directly provide the necessary heat for 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.

Small gas steam boiler in the hotel building applications in daily production, how to save energy and reduce the emission of pollutants, reduce costs, increase economic benefits to the business, the real problem is getting attention, and gradually resolved. Shenyang is a hotel accommodation, offices, restaurants, stores in one large commercial buildings, construction area of ​​6 × 104m2. During the heating period, heating systems, domestic hot water steam system, laundry room used by the municipal heat supply network. After the heating period, domestic hot water systems, steam laundry prepared from 2 model white WNS8-1.25-YQ fuel steam boiler (heating of serving as backup boilers) for the steam, steam production of single 8t / h. Steam boiler room to the sub-cylinder (in the basement podium) linear distance is 200m, and specifications for the steam supply pipe DN250mm, Buried employed, the compensator 4 disposed manhole. Based on the actual measured amount of steam on the hotel, and the application of energy-saving small gas steam boiler in the hotel building were discussed. Selection 2 gas steam boiler us 2009 June 7 to July 1 for steam consumption for domestic hot water systems, laundry room were measured. Average pressure of 0.08MPa steam, hot water systems, laundry average daily amount of steam were 7.43,2.43t / d. Two systems together, the maximum amount of steam per unit time and the average amounts were 0.77,0.41t / h. From the measured data, daily 9: 30-11: 30, 15: 30-17: 00 cooking gas peak, the highest air consumption is 19.65m3 / h, the hotel into the household gas pipeline gas supply capacity of 95m3 / h. According to domestic hot water, laundry room two systems unit time summer highest steam consumption is 0.77t / h, should be used in a 1t / h gas steam boiler, its gas consumption is 76m3 / h. In actual use, reasonable arrangements for gas time, can fully meet the demand for gas gas steam boiler. From the above analysis, the steam production of the hotel is much larger than the existing fuel steam boiler steam summer practical usage. According to the measured summer daily expenditure of more than just fuel costs more than 3000 yuan / d. Underground layer may be mounted on a podium 1t / h gas steam boiler, steam lines since all indoors, and therefore low cost pipeline system, and reduce the emission of pollutants, environmental protection efficiency significantly. 3 gas steam boiler room design of the hotel podium underground over 3 floors, including the basement of the original generator set oil storage has been discontinued, construction area of ​​about 60m2, close to the basement exit ramps from the gas pipeline into the family 8m, after transformation, can be used as gas heating boiler room. Gas heating boiler heating system flow shown in Figure 1. Gas heating boiler to be mounted ventilation system, the ventilation normally not less than 6 times / h, accident ventilation of not less than 12 times / h, the amount of exhaust air volume should be slightly larger, so that the boiler room space maintain positive pressure, and the ventilation should be selected proof products. Gas heating boiler to be mounted combustible gas detection and alarm devices, combustible gas detection and alarm device to automatically signal when gas leakage occurs, the emergency shut-off valve closed and to ensure that no further leakage of the combustible gas. Water spray system shall be installed, and the sprinkler system in conjunction with the original. Gas heating boiler in order to prevent water from leaking into the premises are ground floor, the ground should boiler room waterproofing and drainage ditch, the concentrated water discharged to the ground floor drainage system pressure, into the room promptly [1,2 ].