best natural gas fired hot water boiler

4 tons of steam boiler before firing what needs to be done to prepare a deal boiler conduct a comprehensive inspection before Sheung Shui, the water is softened before boiler water filling. 2, Sheung Shui should check whether there is water leakage valve, leaks should be immediately removed when found. 3, the check Sheung water temperature, pressure gauges, water level, no good production of inlet and outlet valves, smoke profile, said shutter is flexible, the flue gas channel is smooth duct, each cleaning doors are tight. 4, before firing coal with water 8-10%.

Determine the location of the steam boiler room siting what issues need attention 1, boiler room refers to the building design boiler and ancillary equipment, water treatment facilities, pumps and sub-steam (water) tank and the like. Boiler should be separate and independent from other buildings. Boiler room should not be set directly in crowded places (such as public bathrooms, classrooms, restaurants, auditoriums, shopping malls, waiting rooms, etc.), or at the top, bottom, or the immediate neighborhood of the main evacuation port on both sides. 2, the new boiler room should not be connected to the house. 3, provided in the boiler room such as a semi basement layers or high buildings or the first layer must meet the following conditions: (1) each steam boiler rated evaporation does not exceed 10t / h, steam pressure does not exceed the rated 1.6MPa; rated each water boiler (including direct fired absorption chiller-room unit) does not exceed the output 7MW, the rated water temperature ≤95 ℃. (2) Each steam boiler must have a reliable overpressure protection interlocking means interlock protection device and the low water level. (3) accessories and safety interlock protection device for each boiler to regular maintenance and testing to ensure that sensitive and reliable. (4) the building structure between the boiler should have the appropriate proof Measures. (5) operate independently of the fireman who must hold the appropriate level of operating permits fireman, boiler and continuous operation of the same class more than five years, has not been an accident. (6) There must be safe evacuation routes. 4, should not be located in the boiler room or a high-rise multi-story building basement, an intermediate floor or roof, but the conditions required setting time, shall meet the requirements of paragraph 3, the first gist of the present, should meet the following conditions, and former boiler room should be set prior consent districts of the city and over special equipment safety supervision agency: (1) steam boilers rated evaporation each no more than 4t / h, rated steam pressure does not exceed 1.6MPa; each heat rated water boiler (including direct fired absorption chiller-room unit) does not exceed the output of 2.8MW, the rated water temperature ≤95 ℃. (2) must be light oil, city gas, natural gas as fuel or electric heating boiler. Underground boiler room non LPG gaseous fuel or a density greater than 0.75. Connection (3) using a fuel supply pipe welding backing. In addition, when set in the basement boiler room, blowdown or appropriate measures should be set up sewage. When using gas as fuel, the exhaust system is also provided accident. 5, not connected to the boiler room A, (B) and (C) a liquid combustible fire risk room. If connected to other production plants, application firewall separated. Waste heat boiler is not so limited. Boiler production plant belongs to class D, between the fuel tank, between the pump delivery room Class C production, between the gas regulator belonging to the delivery room A of production. 6, between the outer wall or roof of the boiler should be at least equivalent to 10% of the area between the boiler pressure relief area (such as windows, skylights, shutters, etc.), and the relief port should avoid crowded places. 7, boiler room should be equipped with emergency lighting and evacuation signs, emergency lighting voltage shall not exceed 36V.

Oil and gas boilers for food factories

In all parts of the world, the most important thing is the food processing factory. Various food processing factories are covered by various large and small enterprises such as biscuit factories, meat processing factories and dairy factories. For these food processing plants, boiler applications are essential, and steam boiler applications are the most common. The food factory steam boiler is mainly used in the process of distillation, extraction, disinfection, drying and maturation in the food processing process, and the high temperature steam is used for high temperature cooking, drying and disinfection of the food. Of course, other boilers, such as some food plants, will sometimes be equipped with self-contained power station boilers for internal power generation, or hot water boilers for central heating of their plants, office buildings, and dormitory buildings. Of course, some processes in food factories require special processing of food by hot water boilers.

This year, located in Guizhou Tongzi County and located in Heilongjiang Harbin has two boiler 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.

best natural gas fired hot water boiler

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