According to fuel (electricity, oil, gas), oil-fired gas boiler can be divided into three kinds: electric 25 ton steam boiler kuwait, oil-fired steam boiler and gas-fired steam boiler. According to the structure can be divided into vertical steam boilers, horizontal steam boilers, small and medium-sized steam boilers are mostly single, double-return vertical structure, large-scale steam boilers are mostly three-way horizontal structure. The following is the boiler pressure fire shutdown time more than 6 hours, the boiler main steam valve should be closed after a period of pressing fire, opening the superheater outlet header drain valve, to cool the superheater. If the air pressure rises after the main steam valve is closed, it can be used to lower the pressure of the boiler by feeding the water into the boiler and simultaneously discharging the water. Press. When the boiler resumes operation, it needs to go through the pressure rise and protect step 2. There is still steam pressure in the pot during the shutdown period of the pressure fire, so it is still necessary to pay attention to monitoring and make the boiler keep the allowable water level 3, the boiler with cast iron gas saving gas, after the boiler stops feed water, The gas-saving flue baffle shall be closed, the side-hearth baffle opened or used in the circulating pipeline to stop the water temperature in the gas-saving area exceeding the specified value of 4, the proper discharge shall be carried out during the shut-down of the furnace under pressure fire, and the sediment in the furnace shall be excluded. The operation of circulating water pump should not be stopped immediately after the furnace shut down. The circulating water of network should be kept circulating in the system for a period of time, and the water temperature of boiler outlet should be lowered below 50oC. The operation of circulating water pump can not be stopped until the operation of circulating pump is stopped.
Recently, we learned, Zhangbei County, Hebei Province to speed up the transformation of low-nitrogen combustion, gas-fired, Zhangbei County Environmental Protection Agency issued the "Notice on nitrogen oxide gas boiler governance", the transformation of the way around the gas boiler, the transformation of technology formalities to conduct a comprehensive explanation of propaganda, mobilization of Zhangbei above a certain size gas boiler units to actively participate in low-nitrogen transformation.
In order to ensure the smooth progress of work, the EPA developed a grasp of leadership, and a series of regular briefings on the system, arrange for the transformation of real-time tracking progress, personally led by the leaders in charge of the transformation of the construction-site supervision, to solve various problems during installation accelerate the transformation progress of the project. To date, more than 10 tons of steam Zhangbei natural gas boilers have been completed the transformation and detection of nitrogen oxide emissions, emission concentration all the stabilizing reached 30mg / m³ or less, over-done.
To protect the subsequent reconstruction work in depth, Zhangbei County township organization, the relevant units of the county with a comprehensive Mo Pai, gas-fired, gas-fired boilers for each specific model boiler unit, whether used and other basic information has been verified, the establishment improve the work ledger; to ensure that the base number is accurate, targeted work, Zhangbei arrange strengthen docking with the gas company, promptly verify the perfect new gas boiler archives, ensure the follow-up task of transformation clear, exhaustive renovation project. At the same time, combined with the actual development of the Zhangbei gas boiler compliance programs to lay a solid foundation for the comprehensive promotion of this work next year.
Gas introduced gas 25 ton steam boiler kuwait steam boiler stop sign Profile: natural gas steam boiler is a steam boiler gas, natural gas steam boiler with natural gas as fuel, the combustion in the furnace heat put out by heating the pot water, and allowed to vaporized into steam energy conversion device. Water pan (drum) is continuously released from the combustion of a gaseous fuel energy to heat the furnace temperature is increased and produce steam under pressure. Since the boiling point of water increases with increased pressure, the pot is sealed, the expansion of water vapor generated inside the pressure limited thermodynamic formed, strictly speaking, the steam boiler is heated in water at constant pressure saturated steam drum regasification water formed, is widely used as an energy source. Protection device: (1) protect the boiler water a boiler water level gauge plate supporting one to two, should always be compared with each other, inconsistent findings indicate that shall be corrected immediately. Class water level should be flushed, to determine their true level. While the water level comes electrode rod can accurately capture level signal to an alarm or a pump control. (2) steam pressure protection pressure controller: selection of high sensitivity of the pressure controller, the pressure is high, or low levels of signal to the electrical switches, other control lines or automatic control chain protection. Using pressure controllers and electrical contacts, the vapor pressure can overpressure alarm; single adjustable pressure controller or dual fire burning fire the actual operating pressure. Safety valve: safety valve is the last line of defense to protect the boiler, the boiler pressure exceeds the limit, according to the set pressure relief valve design with the school, the exhaust steam pressure relief, to ensure the normal operation of the boiler. (3) having a burner flame protection flame protection inlet means, combustion function is to detect, when the ignition failure or extinguish combustion middle, immediately off the burner into the oil (gas) solenoid valve, the blower continues to operate at this time, the furnace was purged combustible residual gas, after 20 to 30 seconds purge, and various auxiliary blowers automatically cut off power, the boiler operation stops. (4) self-locking power failure protection case, the boiler shutdown immediately burst self-locking power interruption, if the current power is restored, the boiler will not start at any time, you must reset release self-locking, to re-start the ignition. Editing boiler ignition procedures: 1. Check operation and (or) shift recording. 2, inspection, examination boiler, external. 3, check the main safety accessories. Safety valve, water gauge, pressure gauge, to be tight, reliable and sensitive. 4, check the water treatment equipment. 5, inspection equipment and soda water supply system pipe. Adjust the valves as required to start. 6. Check the oil supply equipment. After the above inspection qualified, you can start the boiler. Note: The boiler is a high-temperature, high-pressure thermal equipment, is one of special equipment, widely used in government agencies, public companies and all walks of life, it is dangerous and special equipment. Event of an accident involving public safety, it will cause huge losses to the state and people's lives and property. For public safety, people's lives and property safety, according to the State Council, "Regulations on Safety Supervision of Special Equipment", the boiler should use full attention the following matters: 1, should be accompanied by safety technical specifications of the factory boiler design documents, product quality certification, safety and the use and maintenance instructions, supervision and inspection certificate (safety supervision, inspection and performance certificate). 2, boiler installation, maintenance, alteration. Engaged in the installation of the boiler, maintenance, renovation of the unit shall obtain special equipment installation and maintenance certificates issued by the Provincial Quality and Technical Supervision, before engaging in the boiler installation, maintenance, alteration. Construction unit before construction will be prepared for installation, maintenance, alteration in writing inform the special equipment safety supervision and management department of the municipality or district, and will start informing sent to the local county level Quality and Technical Supervision for the record, told immediately after construction. 3, inspection of boiler installation, maintenance, transformation. After construction, the construction unit To State Quality and Technical Supervision of Special Equipment Inspection and hydrostatic testing of the boiler installation supervisory inspection declaration. After passing by the State Quality and Technical Supervision, State Special Equipment Inspection, County of Quality and Technical Supervision involved in overall acceptance. 4, registration boiler. After the boiler inspection, the use of units must be in accordance with the "special equipment registration and use of management rules", fill "boiler (census) Registration Form", the State Quality and Technical Supervision to register and obtain a "registration certificate to use special equipment safety . " 5, operation of the boiler. Boiler operation must be performed by trained and qualified to obtain "special equipment operator certificate" certified personnel to operate, must strictly abide by the rules and eight systems, six record. 6, check the boiler. Periodic inspection of boiler once a year, not be used without safety periodic inspection of boilers. Safety accessories safety valve of the boiler regular inspection once a year, pressure gauge biannually verified, may not be used without the periodic inspection of the safety accessories. 7, non-pressure boilers will be installed for the boiler pressure. Do not use water level gauge, safety valve, pressure gauge three safety accessories insufficiency boiler.
Electric heating 25 ton steam boiler kuwait Products electric heating steam boiler is the electrical energy into heat of a new type of electric equipment, following the same "boiler Safety Supervision" and the manufacturing industry standard in design. By electric heating equipment, heating equipment consisting of furnace, safety accessories, strong, weak control systems and other components all have national compulsory safety certification mark. Full immersion heating elements fixed to the flange, easy to change freely. Circuit design using fuses, electrical harmonics are controlled to ensure effective protection of the safety of the power supply circuit. Boiler power control system using a host and a separated manner, to avoid disturbing the electrical and thermal aging electrical components. Product description features: ① may provide a direct product structure analysis, gas-assisted technology application support, precision molds (gas assisted mold), plastic products (gas assisted products), heat distortion temperature trace full service support molding technology; ② can be provided directly in the gas-assisted injection molding technique involves analysis of the product, mold design, optimization support mold, gas-assisted manufacturing mold, gas-assisted process support, a reasonable selection, and other gas-assisted equipment; many enterprises effective use of gas-assisted technology to enhance the quality of products, reduce production costs provide a strong technical support. ③ may be provided directly to all sets of gas-assisted injection molding system devices patents involved in the development of the company designed the special requirements for gas-assisted production, production and closely monitor, such as high reliability of compressed air purification system, maintenance-free three-year nitrogen separation system, the introduction of foreign produce high quality clean diaphragm high pressure compression system (compression pressure nitrogen completely solve the hidden oil contamination), and gas-assisted pressure control with high precision: the temperature change may provide direct heat trace technique involves molding All patents sets of equipment, including steam-assisted injection molding equipment, electric assisted molding apparatus, hot water and hot oil auxiliary molding equipment accessory, ④ may be provided directly GAIM equipment, heat molding temperature change trace all the technical equipment involved service, spare parts service, customers do not need to face before other vendors run the preparatory work: (1) the operator must know the location of the working principle of the boiler, all kinds of accessories, performance and working methods. (2), check the oil combustion, and each nozzle connection, power supply and the burner, the pump, the boiler installation accessory. (3), a clear main steam valve open, after closing the normal close it. (4), water level gauge inspection, confirmation flexible water level, normal position. (5), the pressure regulator is properly tuned, regulate combustion damper.Free Chat
Copyright © 2020.Company name All rights reserved.