In accordance with article 1.2 13.3.6 to 13.3.8 "fired boiler in nigeria cost design specifications" (GB50041-92): gas-fired boiler provided in the other buildings should be not less than 3 times the amount of ventilation, ventilation hour It does not include the amount of combustion air volume. Dangerous operating room and the like between the gas regulator, the amount of ventilation per hour, should be less than 3 times, when not meet the requirements natural ventilation, mechanical ventilation should be provided, and should be less than 8 air changes per hour accident ventilation times. Fuel pump and reservoir 45 ℃ flash point less than the underground tank of combustible oil, except that natural ventilation, the fuel pump mechanical ventilation 10 air changes per hour should times, six times per hour ventilation should depot mechanical ventilation. The above three are in each room in order to ensure exclusion of air and flammable hydrocarbon disposed a predetermined minimum ventilation rate.
This year, located in Guizhou Tongzi County and located in Heilongjiang Harbin has two fired boiler in nigeria cost explosions accident, after investigation, the accident was produced in the installation link, there are companies the main responsibility for the implementation of incomplete installation link, confusion installation and construction management , unauthorized commissioning, pressure testing irregularities, installation supervision and inspection to ensure the role of the missing and other problems, leading to a boiler explosion occurs, causing adverse effects for the personal and property safety.
Market supervision bureau to draw lessons from the accident, in order to avoid explosion due to boiler installation problem from occurring again, issued a notice warning of the risk of boiler installation link. Details are as follows:
The boiler safety related technical specifications, the entire boiler manufacturing unit can be installed (set) mounted boiler units produced. Boiler manufacturing unit undertake installation work, should meet the following requirements:
The manufacturer should be dedicated departments boiler installation work, set up to cover the boiler installation quality management system, equipped with the necessary resources to installation conditions. Boiler manufacturing units should strengthen sales management, through specified in the sales contract if the terms of the unit responsible for the installation of boilers, etc., to prevent sales by the manufacturing license qualification units or organizations which are not allowed to undertake the unit personnel to carry out boiler installation work. Where specified in the contract manufacturing sales unit responsible for the installation, on-site installation work must be sent by the company to complete the installation personnel shall not be subcontracted to other units (safety specifications are allowed in the assigned project except). Indicate the sales contract to this unit responsible for the installation of the boiler, installation of the unit must have the appropriate license installed. Responsible for the installation of the units should strengthen safety education and skills training for installation personnel. Find that the installation quality and safety aspects of the occurrence of an accident or appears illegal activities, special equipment safety supervision institutions should be punished according to the law to install the unit.
Boiler installation units should strictly enforce the relevant safety standards and technical specifications to ensure the quality and safety of boiler installation, the unit should be installed at the installation site set up signs stating the name of the license holder of the certificate, license project, license number and items the person in charge, who is responsible for safety and quality, commissioning personnel, supervisory inspector's name, unit and telephone. Boiler commissioning and commissioning, operation must be performed by a licensed boiler operator. Before the boiler installation, inspection and acceptance by the relevant formally delivered, installed units should be hung in a prominent position boilers warning signs with the words "banned" and take effective protection and quarantine measures to ensure that the boiler system can not be ignited or boost . In addition to the need to debug, the cabinet can not be energized, the fuel valve is in a closed state should be like. Use blanking panels of the boiler pressure test, the test should be removed immediately after the end of the Blind.
Boiler boiler installation situation before construction units should be installed by informing the local special equipment safety supervision and management departments, and submit an application to install Supervision, Inspection and supervisory inspection agency. Where Supervision and Inspection uncommitted boiler installation project may not start.
Supervisory inspection agency should be strictly in accordance with the "Boiler Inspection Rules", according to the supervisory inspection protocol and progress of the project requirements, arrangements for the implementation of the supervisory inspector boiler installation supervisory inspection. A class of control points, the supervisory inspector must be at the scene confirmed to meet the requirements, the installation unit in order to continue with the work. Supervisory inspector shall, at the start that is to the construction site, in the whole process of site supervision to pressure test, shall not be used after the witness confirmed that and how do fill supervisory inspection program Supervision, Inspection and replacement process when the boiler pressure test.
Boiler manufacturing unit in particular is responsible for boiler installation of manufacturing units and boiler installation supervisory inspection agency, should an accident lessons learned, giving top priority to further implement the main responsibility and checks responsibility, strengthen the boiler installation management to ensure the quality of the installation work, protect the boiler safety.
Both gas and coal can be used as fuel for boilers, but different types of boilers are named according to the types of fuels used, so there are gas boilers and gas boilers. So what is the difference between a coal-fired boiler and a gas-fired boiler, apart from the fuel used in combustion?
1. The fuel used by different coal-fired boilers to exhaust smoke is coal. When coal burns, it will cause serious pollution to the environment by producing larger smoke and dust. However, high-stability gas-fired boilers do not emit black smoke after combustion. Because gas can basically be completely burned, smoke-emitting black poison can reach zero level, the content of SO2 in it is very small, so there is no pollution to the environment.
2, heat loss is different in order for coal-fired boilers to maintain adequate combustion intensity, the use of human or other equipment to constantly add coal to the furnace, when the need for intermittent operation, It takes a long time to raise the temperature in the furnace when starting again, so it will produce great heat loss when pressing fire, and the gas-fired boiler is very convenient to start and stop, and can heat up rapidly during intermittent operation, so as to reduce the heat loss in this process.
3, the different ways of treatment after combustion will produce a large amount of ash after burning in the boiler. In order to maintain the health of the environment, the ash will be transported to the professional slag removal yard for treatment, but gas is used in the gas-fired boiler. There will be no residue after combustion, so there is no need to deal with it. It not only avoids the pollution to the environment, but also reduces the labor intensity of enterprises and the storage and transportation of urban ash.
Select steam fired boiler in nigeria cost fuel gas of good or good? Steam boiler has a lot of varieties, the most common classification is based on it can be divided into fuel to burn natural gas and electricity and fuel burn of. When buying a steam boiler, a lot of people do not know that we should buy natural gas or fuel steam boiler steam boiler. Gas boilers and oil boilers are our two most common ways the boiler. If you want to use natural gas steam boiler, the need to ensure that there are local gas can be switched on; if you want to use oil-fired boiler, the procurement needs daily oil tank and oil tank buried, placed in position and good design, so that the fuel supply to the boiler. Gas-fired boiler burning natural gas, it has the primary energy saving, high thermal efficiency strengths, oil-fired boiler burning diesel fuel is light, it has a simple fuel reserves by the fuel supplier strengths affect small. The primary operating costs and fuel gas steam boiler steam boiler related with local energy pricing. Per ton of steam vapor is about to use the side 80, if the offer by gas 3 yuan / square to count, that is, 240 / ton operating costs. Steam per ton of about 66kg of light diesel oil is used, if the press 9 yuan / kg fuel offer calculated, then the cost of steam is about 594 yuan / ton. To compare quotes from the fuel, then, natural gas will be cheaper than oil. Free fast boiler thermal monitoring subject device a continuous steam boiler feedwater automatic control system IntroductionFree Chat
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