corner tube steam boilers
Generally, the thermal efficiency of the boiler in general about 85% -91%, while the thermal efficiency of the condensing boiler can be higher than 100%, fast boiler even reach 108% of the height. This extra 10% -20% is derived from condensing technology takes advantage of sensible heat and latent heat part of the boiler operation.
What is the boiler automatic water? Automatic water boilers What are the benefits? Users are most worried about things than boiler water, at run time if the boiler once the lack of water is likely to cause an accident, so is there a device to prevent the boiler water it? Give us today to introduce a boiler water inside the boiler will be automatic screen when water or low water level "automatic water boiler equipment" automatic water boiler boiler equipment, also known as smart Sheung Shui, this device can greatly improve the boiler safety factor particularly corner tube steam boilerss, boiler explosions often occur because of normal operation of the boiler at the time forgot to add water inside the boiler, fireman often for various reasons forgot to add water to the boiler burning red, then go down to the boiler Riga water leading to an explosion of the boiler, the boiler must not immediately red-hot when added to water inside the boiler, once to clean it out fuel in the boiler and other boilers to cool slowly. Boiler automatic water main functions: automatic water boiler adopts integrated circuit can be automatically boiler feed water, drainage, and water level is too high to effectively prevent overflow of water shortage due to dry or boiler water level remains in a safe range. 1, water regulator automatically: the boiler water level is maintained within a safe range, the instrument is provided in a bit feedwater automatic control device, the boiler water level is always maintained within a predetermined normal range. 2, sound and light alarm four states: a: high level alarm; B: low level alarm; C: Low risk level alarm; D: 3 overpressure alarm, the instrument is provided with automatic, manual water supply apparatus: automatic device in the instrument case case of failure, the switch in the manual position, Sheung manually and without water, the pump manual control, regulating the water level, in order to achieve the purpose of emergency and flexible use. It does not affect the normal operation of the boiler, after troubleshooting, to the switch back automatically. Automatically shutdown by 4, the instrument has a control circuit chain protection limit, dangerous states. This greatly reduces the safety factor of the boiler.
Boiler technology-horizontal corner tube steam boilers
Horizontal steam boiler design
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.