2ton electric heating steam boiler

How to prevent running back pass secondary combustion 1, 30% of the rated boiler to deal with the amount of purge air before boiler ignition; the boiler must be 30% of rated air flow purge less than 5 minutes after the boiler fire, or allowed to boiler re-ignition. 2, fine-tuning the boiler and combustion systems pulverizing system operating conditions, to prevent incomplete combustion of oil and coal accumulating on the tail heating surface or flue. 3, boiler burning oil, adjust the proper air flow, fuel flow, confirming good gun oil spray, burning completely. If you find a bad oil spray gun should be discontinued immediately, and clean up. 4, when the oil application group administered powder, cast powder should be confirmed before the oil burner ignition good, or allowed to cast powder. 5, the oil powder boiler during cofiring, and check the fuel oil gun system of fire reinforcement. 6, normal operation, operation personnel in monitoring the economizer, an air preheater flue tobacco in different conditions of temperature, abnormal, should be checked to detect a fire-place. 7, air preheater sootblowing steam system normally put into operation, the soot-blowing pressure and temperature in a predetermined range. When the unit load or less prolonged 300MW kerosene mixed combustion, air preheater sootblowing steam to be continuous. 8, the air preheater into a reliable fire alarm device. 9, an air preheater inlet and outlet fume / air damper, and should be able to put an electric shutter can be open, closed tight. 10, if found preheater stall, should be put into operation again immediately, if not turn back, they should be isolated.

June 22, 2018 in the evening around 6:40, Chongqing Hechuan keel village "Ding taste the food factory" boiler exploded, the accident killed two people, three people were injured.

At the scene, boiler room Zhata, damaged boiler flew ten meters outside the field, next to a few factories are subject to different degrees of damage, around the ruins. But because not many nearby residents, no adverse impacts to other villagers.

According food factory owner friends when the accident occurred, both inside and outside the boiler room just five people. One person was killed and four people were injured, one of whom died en route to hospital, the other three in stable condition and is currently being treated in. It is understood, Ding taste the food factory is a small tofu factory, usually only a few factory workers. When the accident occurred, it is time off work, the boss's father, Huang uncle went to the boiler room, prepare a little help, but I do not know which part of improper operation, resulting in an explosion.

The boiler explosion, resulting in serious consequences and impact, but also sounded a warning for the steam boiler is using various food processing plants. Steam boiler output to high-temperature steam, with a certain risk, in use, to operate in strict accordance with the provisions, not miss any details, nor allow non-professional staff stoker boiler operation to avoid unnecessary losses.

1, boiler factory should be accompanied by "technical safety specifications of the design documents, product quality certification, safety and the use and maintenance instructions, supervision and inspection certificate (safety supervision and inspection certificate performance)."

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 of Special Equipment To Quality and Technical Supervision, Inspection and declared the boiler installation supervisory inspection and hydrostatic testing. After passing by the Quality and Technical Supervision, 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" to the Quality and Technical Supervision registered, and obtain a "safe use of special equipment registration certificate" .

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.

Temperature protection device during the fuel steam boiler overtemperature protection to regulate temperature protection is an important part of safe operation of steam boiler fuel, especially fuel steam boiler temperature regulation and protection. Electric heating boiler and the boiler is mainly composed of electric control box and control system. Its characteristics are environmentally friendly, clean, no pollution, no noise, automatic, with limited energy and reduce prices significantly, as a new boiler electric heating boiler equipment increasingly being recognized. Electric heating the core member is electrically heated boiler, directly determines the life of the boiler, to select a non-metallic electrical heating tube (such as a ceramic heating pipe), because it is resistant to the load, a long life, and a water separation structure, the boiler Wing no leakage. Fuel gas boiler is not only fuel but also refers to the gas boiler. Previously no such dual-fuel boiler, burner because either fuel or gas, no dual fuel burners. With the rapid development of the world energy equipment, some European countries begin production and sales of fuel gas burner, dual fuel burner and boiler combination of organic birth of a new breed of boiler - fuel gas-fired boiler. Meanwhile, when the superheated steam boiler fuel, can play a role in the regulation and protection. Conventional boiler temperature protection means is a bimetallic temperature controller. Flame protection: To prevent the furnace blast, the fuel steam boiler must be equipped with flame protection device, and its function is combustion within the monitor cavity (including ignition misfire on or off in the middle of the combustion, is generally re-ignition within 5 seconds, within 1 sec. running off the oil (gas) solenoid valve, and opens the concurrent silent alarm signal, when the blower continues to operate, remove residual combustible gases in the furnace, after 20 or 30 seconds purge, and various auxiliary blowers automatically cut off power boiler stop running. flame monitor function signals displaying a flame presence or interrupt from the control device. its main use is a photomultiplier tube, photoresistors and photocells, they have an ultraviolet or infrared type photoelectric conversion element, its operating the principle of light radiation intensity is converted to the corresponding high current and low current and the output is a linear state, the induced current is sometimes weak, and thus affect the controller amplification.

Nine hot water boiler technical characteristics of electric water boiler 1, the hot water boiler electric water boiler hot water boiler microcomputer controller, the built-in backlight in the LCD screen display, operating status of the boiler clearly visible. All operations are easily accomplished by simply buttons, super boiler display controller, the control function is complete. 2, a ceramic tubular electric heating hot water boiler uses water and electricity separation electrical heating mode, the complete separation of the tubes and electric heating boiler water, boiler safe and convenient maintenance, replacement of a heating tube; stainless steel tube electric heating type hot water boiler implementation immersion electrical heating, water heating furnace, high efficiency, and the heating furnace tube flange connection, easy to clean, replace them. 3, the user can arbitrarily set the temperature between 30 ℃ -90 ℃, the boiler in accordance with user requirements timing, temperature, or automatic circulation heating system to provide users with a bath heating, domestic hot water. 4, high-power stepping boiler heating control law input sharing group, the group can be randomly put into or heating is stopped according to the load variation, and significantly reduce the impact on power. You can also manually start and stop the heating section number, user side to adjust the power boiler itself. 5, the control system controls the circulation pump start and stop in accordance with the temperature of boiler water. Hot water circulating pump is stopped when the furnace temperature reaches an upper limit, below the hot water circulation pump start lower limit temperature. 6, bath, living with the embalmed internal hot water boiler, furnace rust corrosion, long service life of the boiler, hot water, clean water, sanitation. High centrifugation using glass fiber cotton multilayer insulation, heat loss, energy saving; famous white color board packaged, elegant appearance corrosion resistance. 7, the boiler having a leakage protection function (power supply control system detects electrical leakage, automatically cut off the power boiler), anti-dry protection low water level (the water level is below the minimum limit of the level set immediately stop and alarm), the furnace overheating protection function (start when the boiler shell temperature exceeds 105 deg.] C, immediately shut down and an alarm, the temperature of the normal automatic boiler), the temperature sensor protection function (control system keeps detecting sensor condition, stop immediately and alarm), the power supply voltage protection function (when the power supply is abnormal, the automatic power-off. after the normal, automatic recovery operation), the heating assembly phase protection function (monitoring phase after heating assembly, shutdown protection). 8, the top of this boiler has a vent to the atmosphere, the interior is not under pressure, boiler work at atmospheric pressure, there is no risk of explosion, the complete elimination of security risks. 9, a back outlet symmetrical design (double inlet) for quick connection installation; boiler mechanical and electrical integration, compact size and reasonable transportation is very convenient. When natural gas steam boiler for emergency shutdown? Emergency shutdown is an emergency action to take when natural gas steam boiler accident, in order to prevent the accident from being taken. When the boiler in operation, any of the following circumstances, should immediately shutdown: ① boiler water level below the lower edge of the visible water table, increasing water supply and other measures, but the water level continued to decline; ② boiler water level exceeds the maximum visible water level (full of water), the water drainage can not be seen; ③ all fail to pump failure or water supply system, not water to the boiler; ④ water gauge or all of valve failure; ⑤ boiler element damaged, thereby endangering the safety of operating personnel; ⑥ other unusual circumstances endanger the safe operation of the boiler. In case of power, water supply and other emergency situations should take timely measures. If not solved, it should be promptly reported to the company. Prohibited under pressure boiler water temperature or higher, the repair of boiler pressure element, to prevent the steam, the water discharge was wounded. Under repair equipment, to hang warning signs. Electrical equipment repair, electrical work should be carried out staff. If in vapor, flange and pipe joints, safety, staffing holes and inspection visits to check the hole, etc., should not be in front, but should side. The operation should wear protective gloves to prevent burns. The operator should make regular automatic (at least once every three months) and manual exhaust (at least once a week) to check and ensure that sensitive and reliable safety valve.

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