Use And Operation Of Gas-fired Steam Boilers

Small natural gas steam boilers refer to natural gas steam boilers used by units with a small amount of steam. Most of these burners are vertical structures, using the method of placing the incinerator under the incinerator, with a two-pass structure, sufficient fuel incineration, and stable operation of the burner; A spoiler is inserted in the tube, which slows down the speed of smoke exhaust and increases heat exchange. The burner has high thermal efficiency and reduces the user's operating cost.

The furnace of the small natural gas steam boiler adopts a vertical tubeless, four-return structure. Effectively increase the heat transfer from flue gas to boiler water, improve thermal efficiency and save energy. The tubeless design prevents the product from being burnt due to scaling, and the heat is evenly transmitted to the tube wall and heat transfer fins, preventing stress and prolonging the service life. Compared with similar products, it has a large incineration chamber, a low temperature at the outlet of the furnace, and the threaded smoke pipe is the primary convection heating surface. The upper smoke chamber can also be equipped with a waste heat recovery heat exchanger, which can greatly save energy.

◇ This product is subject to the supervision and inspection of the Burner and Pressure Vessel Inspection Institute. The design, materials and production process completely conform to the existing national burner production standards, quality assurance, safety and reliability.

◇ Leading and reasonable control system design; all chain control of water supply, incineration, incineration, fault maintenance, etc., complete fuel incineration, high thermal efficiency, no black smoke, and no environmental pollution.

◇ The main electrical controls are made of famous brand products, with reliable function, low failure rate and high equipment utilization rate.

◇ One machine is multi-purpose; it can not only supply the steam required by the iron, but also supply other clothing equipment and other gas supply equipment.

◇ High steam quality, extremely low water content, sufficient evaporation and stable air pressure.

◇ Beautiful appearance, reasonable price, simple equipment, convenient operation and low running cost.

◇ It is widely used as a steam source for clothing, wool weaving, ironing, steam sauna, small food, chemical industry and other occupations.

1. The burner The burner is supplied by a well-known manufacturer, and it automatically burns and stops according to the instructions of the controller. The independent program controller has a number of safety maintenance, the function is safe and stable, and the repair rate is low.

2. The leading steam burner fully active controller, full Chinese LCD screen, man-machine interface, the user only needs to easily set, the burner can start and stop, load regulation, active water supply and other fully active operations according to the user's request. The burner has complete functions, complete maintenance, simple operation, safety and reliability, and has the function of self-diagnosis. Once the burner is running abnormally, it will automatically stop the incineration and announce the sound and light alarm.

3. The vertical steam burner adopts the method of placing the incinerator under the incinerator, with a two-pass structure, sufficient fuel incineration, and stable operation of the burner; a spoiler is inserted in the smoke pipe, which slows down the speed of smoke exhaust and increases the heat exchange. The thermal efficiency of the burner is high. Reduce user usage costs.

4. The horizontal steam burner is a shell-type full-wet back downstream three-return pyrotechnic tube structure. The flame is incinerated at a slight positive pressure in the large incineration chamber, and the flame is completely expanded. The incineration heat load is low, the incineration heat efficiency is high, and the smoke exhaust is effectively reduced. temperature, energy saving and consumption reduction, economical use. The structure of the corrugated furnace and the threaded smoke pipe not only improves the heat absorption strength of the burner, but also satisfies the demand for thermal expansion of the heat exchange surface, which is scientific and reasonable and durable.

5. This burner strictly complies with the requirements of "Steam Burner Safety Supervision Regulations", JB/T 10094-2002 "General Skills Conditions for Industrial Burners", and JB/T 1619-2002 "Skill Conditions for Shell Burner Body Manufacturing" , carry out planning, production, and supervision and inspection to ensure that the burner is of good quality, achieves low energy consumption, high thermal efficiency, stable pressure, sufficient gas supply, and economical use. 6. The burner has a large furnace space, stores a lot of steam, and has a strong adaptability to load. Reasonable planning of built-in steam-water separator equipment to meet the user's request for higher quality steam. The furnace body is provided with manholes, head holes and hand holes, which is convenient for arranging the inside of the furnace, making repair and maintenance extremely convenient.

7. The burner safety is provided with multi-level interlocking maintenance: pressure switch maintenance (active shutdown and alarm when the pressure is higher than the set pressure), low water level maintenance (the water level in the burner body is lower than the warning water level, and the power supply is actively cut off and alarmed), safety Valve maintenance (the pressure of the burner exceeds the operating pressure, and the pressure is automatically reduced in frustration) to ensure that the burner is foolproof and safe under various working conditions.

8. The mechanical and electrical integration appearance of organic combination is exquisite and novel, compact in structure, takes up less space, and is convenient for transportation and equipment.

9. Use new thermal insulation materials and excellent white color steel plate packaging, light weight, good thermal insulation function, beautiful and generous, not easy to rust.

10. Fully active/natural gas steam boilers are widely used in hospitals, campuses, textile factories, garment factories, clothing supermarkets, garment factories, dry cleaners, restaurants, hotels, bun shops, hotels, canteens, restaurants, food factories, beverage factories, Soy products factory, meat factory, cannery, winery, pharmaceutical factory, packaging factory, building material factory, paint factory, beauty salon, bath center, sauna, steam room, baby swimming pool and other enterprises and institutions.

1. Those who operate the burner must be familiar with the function of the burner and related safety knowledge, and hold the certificate. Non-personnel are prohibited from operating. The personnel on duty should carefully follow the regulations and carefully prepare the operation records and shift handover records, and the shift handover should disclose the safety of the equipment and operation. Check whether the burner is in good condition when changing the shift.

2. The burner and safety accessories should be checked and qualified and within the useful period.

3. Preparation before opening the furnace

①Gas furnace to check whether the gas pressure is normal, not too high or too low, open the oil and gas supply valve;

②Check whether the water pump is in the water, otherwise open the air valve until the water is stopped. Open each door of the water supply system (including the front and rear of the water pump and the water supply door of the burner);

③ Check the water level gauge, the water level should be in the normal position, the water level gauge and the water level color plug should be in the open position, to eliminate the false water level, if there is a shortage of water, you can manually fill the water;

④ Check the valve on the pressure pipe, it must be opened, and the windshield on the flue must be fully opened;

⑤ Check that each knob on the control cabinet is in the normal position;

⑥ Check that the outlet valve of the steam burner should be closed, and the outlet valve of the circulating water pump of the hot water burner should also be closed;

⑦ Check whether the softened water equipment is in normal operation, and whether the various goals of the softened water produced meet the national standards.

4. Start the furnace

1) Steam burner (1) Turn on the main power supply; (2) Start the burner; (3) When the air release valve on the drum is completely steam, close it; (4) Check the burner manhole, hand hole flange and valve, and find seepage Tighten the leaks. After tightening, if there is leakage, stop the furnace for maintenance; ⑸When the air pressure rises by 0.05～0.1MPa, replenish water, discharge sewage, check the experimental water supply system and sewage equipment, and flush the water level gauge at the same time; ⑹When the air pressure rises to 0.1～0.1MPa When the pressure is 0.15MPA, flush the water trap of the pressure gauge; ⑺When the air pressure rises to 0.3MPA, turn the "load fire/small fire" knob to "big fire" to strengthen the burning; ⑻When the air pressure rises to 2/3 of the operating pressure, it starts to warm Pipe air supply, slowly open the main steam valve to prevent water hammer; ⑼ close the drain valve when it is completely steamed out; ⑽ after all the drainage valves are closed, slowly open the main gas valve to fully open, and then reverse half a turn; ⑾ " Turn the "burner control" knob to "active"; ⑿ water level adjustment: adjust the water level according to the load (start and stop the feed pump manually), the water level should be slightly higher than the normal water level at low load, and the water level should be slightly lower than the normal water level at high load; ⒀ Steam pressure adjustment: adjust the burning according to the load (manually adjust the big fire/small fire) ⒁ judge the burning situation, judge the air volume and fuel atomization according to the color of the flame and the color of the smoke Between 250 ℃, the exhaust temperature and concentration of the chimney are investigated at the same time, and the incineration is adjusted to the operating conditions.

2) Hot water burner (1) Turn on the main power supply; (2) Start the circulating pump; (3) Slowly open the outlet valve of the circulating pump; (4) Start the burner; (5) After 15 minutes, turn the color knob of "load fire/low fire" to "high fire"" ⑹ Turn the "Burner Control" knob to "Active".

5. Normal shutdown: hot water burner A Normal shutdown: hot water burner ①Turn the knob of "load high fire/low fire" to "low fire"; ② close the burner; ③ close the fuel supply valve; ④ close the flue When the outlet water temperature of the baffle ⑤ burner drops to 50°C, the outlet valve of the circulating pump is closed. ⑥ Stop the steam burner of the circulating pump ① “Load high fire/small fire” orientation; ② Close the burner; ③ Blow down when the steam pressure drops to 0.05-0.1 MPA; ④ Close the main steam valve; ⑤ Manually replenish water to a slightly higher water level; ⑥ Close the water supply valve; ⑦Close the incineration supply valve; ⑧Close the flue baffle plate; ⑨Close the main power supply B Emergency shutdown hot water burner ①Close the inlet and outlet valves of the burner; ②Open the emergency discharge valve and emergency water supply valve; ③ Close the main power switch; ④ tell the superior; steam burner ① close the main steam valve; ② close the main power supply; ③ tell the superior.