steam boilers using domestic wate waste
When gas steam boilers using domestic wate waste in operation, protection is very important to reduce reasonable protection device failures and maintenance problems. Over-temperature alarm device on the gas steam boiler, its a great extent on which is mounted directly on the local outlet of hot water boiler, steam boiler water temperature in the gas temperature exceeds the specified time, that is, will automatically alarm, on this point, then, to a large extent, that is, to remind staff to take steps to weaken stoker combustion. Over-temperature alarm on the gas and steam boiler unit chain after chain protection, to a large extent on its upper that is at the same time should be to over-temperature alarm and automatically cut off the fuel supply and stop the drum, the wind, which when, that is, to prevent the occurrence of over-temperature boiler equipment caused by damaged phenomenon. Low water level and low water level alarm interlock protection device on the gas steam boiler. Also refers to the boiler water level higher than the highest among the security level or time below the minimum safe water level, water level alarm will automatically alert is to a large extent, the fireman remind personnel to take measures to prevent accidents . Finally, the protective device on the gas steam boiler, in fact, is there flameout protection device, on this point, then, in fact, is that we should pay attention to when the gas furnace boiler flameout occurs, the device will play a role on the boiler flame protection at the same time, it is able to cut off the fuel supply to a large extent, and will send a corresponding signal.
Gas-fired boiler is one of the most widely used equipments in industrial production, and many problems of water use are solved by it. In order to ensure that gas-fired boiler can maintain a stable working state for a long time, it is essential to maintain the boiler correctly. If the gas-fired boiler has been shut down for a long time in the past, how can it be restored to normal? The first is to thoroughly clean the gas-fired boiler. Since it has not been used for a long time, then the gas-fired boiler is bound to accumulate a lot of dust from inside to outside, and only after it has been cleaned up can it be used. In order to clearly check out the actual situation of the boiler. After cleaning the gas-fired boiler, be sure to use the Hot air desiccates it, but it cannot be heated at the same time for walls and other fittings, which may have adverse consequences. The correct way is to place an electric heater at the bottom of the gas-fired boiler and heat it. When the gas-fired boiler is put into use, it is also necessary to place desiccant on the corrosion-proof tray, so that the tray can keep a good drying effect, which is helpful to its normal use, so as to promote the efficiency of the gas-fired boiler to be brought into full play. In addition to the long suspension of gas-fired boilers need to pay attention to the above operation, daily maintenance is also very important, must pay attention to the inspection of desiccant every few months, timely Add and inspect boiler fittings regularly, repair or replace them in time if they are damaged. On this basis, the gas-fired boiler can be restored to the previous good performance, to provide the heat source needed for industrial production, so that its value can be brought into full play. What do you need to pay attention to when gas-fired boilers feed water? According to the requirement of water quality of gas-fired boiler, if the water quality of boiler is too high, it should be treated by supporting water, which can soften the hardness of water and reduce the fouling in boiler tube, so as to improve the service life of boiler and reduce the operating cost. Water should be slowly added to the steam boilers using domestic wate waste when water, feed water temperature should not be too high. Water can not be added too much, as the temperature increases, water will continue to expand, resulting in waste. Generally add water to the normal water level gauge, that is, the middle line can be, now the boiler is equipped with intelligent water equipment, as long as the intelligent adding water can be turned on. When adding water to the boiler, remove the air from the economizer and boiler pipe.
It is reported that Haidong Qinghai positive response to the central problem of coal-fired boilers environmental supervision feedback rectification work, to speed up the production of green, zero emissions work processes, and improve air pollution control plan before the end of 2020, out of the central regulation of environmental inspectors feedback 10 tons of steam coal-fired boilers and 35 sets of Haidong since 2013, new registrations per hour.
Haidong county (district) government to fulfill the main responsibility for the area out of small coal-fired boilers, in accordance with their respective administrative areas, to develop the county (district) phase out remediation work plan. A thorough inventory of all the region under pressure coal-fired boiler to install and use cases, and register, identify all cases remediation coal-fired boilers since 2013 new registrations do not meet the requirements, filing one by one. It urged all localities to fully consider the urban built-up area, divided ban on burning areas, local conditions, facilities strategy, apply non-urban area Haidong 20 tons of steam per hour, new coal-fired boilers, and establish normal management mechanism. Meanwhile, arrangements for the rectification of funds, and actively apply for provincial, municipal, county departments of special subsidies, to ensure the implementation of coal to gas coal to electricity, coal-fired boiler, new alternative energy and other projects, and with the central environmental inspectors feedback registration illegal small coal-fired boilers problem rectification work combine to promote the problem has been effectively solved.
Processing gas boiler maintenance which issue large scale potential harm to the boiler should be noted that, while it can be achieved by two methods outside the boiler water treatment and boiler water treatment, to reduce the scale of production and removal of scale, reduce boiler scale potential hazards. 1, the outer pot + water ---- lime soda softening of this method for a variety of boiler. Currently a reliable treatment effect of the outer pot + soda lime softening, lime is added an appropriate amount of soda ash and the softening has been clarified water to the object. There are two kinds of hot and cold process methods lime and soda softening. Cold process is carried out at room temperature, the residue in water hardness to 1.5 to 2 mEq / l. Calorimetry is heated to a temperature of 20 ~ 80 ℃, residual water hardness to 0.3 to 0.4 meq / liter. Thus, thermal method should be adopted to improve the softening effect. Ion exchange softening mainly by sodium ion exchange exchange resin softening treatment. Due to the strong exchange resin adsorption capacity, capable of free water in the calcium and magnesium ion adsorption, so that the hardness of the boiler feed water meet the eligibility criteria. Ion exchange agents are inorganic and organic two categories. Inorganic surface exchange exchange resin only, a softening effect is poor, less use. Characteristics of the organic-exchange resin is a particulate core loose structure, while the exchange reaction may be carried out on the particle surface and an interior, good softening effect, it is used more. 2, the pot water added Chemicals ---- This method is mainly added to the boiler water chemicals, calcium scale formation in boiler water, magnesium loose sediment formed, then the method will sediment discharge sewage out of the furnace, serve to prevent boiler scaling effect (or decrease). The syrup furnace process generally used for compact low fire tube boiler. Pot of water treatment commonly used drugs are: trisodium phosphate, sodium carbonate (soda ash), sodium hydroxide (caustic soda, also known as caustic soda) and organic colloids (tannin) and so on. When dosing, the various drugs will first be formulated as a solution, and then added to the boiler. Trisodium phosphate concentration of the solution is usually 5 to 8% concentration of the solution is less than 5% of sodium carbonate, sodium hydroxide concentration of not more than 1 to 2%. Dosing methods have regular and continuous dosing two kinds. Dosing regularly performed mainly by gallipot dosing; continuous dosing of the water supply device before the drug is added to the water continuously. For steam boilers using domestic wate waste, preferably a continuous dosing method, so that the furnace can maintain a uniform drug solution. Where the use of pot for water treatment, boiler blowdown should be strengthened, so that sludge, dirt and other baked row already formed outside, receive better results. Zheng pot is equipped with a computer-controlled automatic boiler water softener (e.g. Tuzu, Fleck). Its advantage is the high degree of automation exchange of large capacity, low salt consumption, low power consumption, reasonable structure, easy to install, reliable performance, completely avoid human interference, lightweight package of equipment structure, strong corrosion, also possible to control part of a conventional manual device with automated to be modified.