vertical flue fire tube boiler structure

The cross section of vertical flue fire tube boiler structure hearth is generally square or rectangular. Fuel burns in the furnace to form flame and high-temperature flue gas, so the furnace wall around the furnace is composed of high-temperature resistant material and thermal insulation material. Water-cooled wall tubes are often installed on the inner surface of the furnace wall, which not only protects the furnace wall from burnout, but also absorbs a large amount of radiation heat from flame and high temperature flue gas.

Gas vertical flue fire tube boiler structure safe operation of the gas boiler needs to know the content already is the preferred time of each production equipment, it is highly efficient, energy-saving, environmentally friendly features are widely recognized; gas hot water boiler are hotels, schools, heating stations and other industry plays an indispensable irreplaceable role. Boiler as special equipment, its safe operation is particularly important, how can we ensure safe and stable operation of the gas boiler it? 1, gas boiler properly regulate the operation due to the accident caused by improper operation of the boiler is very common, so it requires the boiler must be run by a professional fireman personnel in accordance with the provisions of strict operating procedures boiler operation. 2, strict management of gas boiler room boiler room is nowhere to put the boiler, furnace room security is directly related to the safe operation of the boiler, boiler room open flame is prohibited, but also equipped with fire fighting equipment, Xianzarenyuan prohibited. 3, to deal with any emergency situation right thing is not a hundred percent safe, if an emergency situation occurs during the operation, we must plan well in advance to predict, such as water, electricity, fuel stops, pressure or inadequate equipment failures and other issues, to We have the ability and can be solved in time. 4, employee security awareness to develop a regular user of boiler safety training to employees, promote employee safety awareness to develop. 5, after the shutdown of scientific maintenance safe operation of the gas boiler maintenance work is very important, boiler maintenance can not only extend the life of the boiler, the safe operation of the boiler has an important role. As long as users in strict accordance with the above five areas, gas steam (hot water) safe and stable operation of the boiler is no longer a problem.

What is the reason for the rapid development of gas-fired vertical flue fire tube boiler structures?

With the continuous progress of science and technology, the boiler equipment has also undergone many times of upgrading, the new generation of gas-fired boiler has been developed cost, the main energy of this boiler equipment comes from gas, it is not only very convenient to use, At the same time, the efficiency of boiling water has been improved effectively. Today's gas-fired boilers have been used in many industries, for people to bring efficiency at the same time also brought development.

At 10:00 on September 6 and more, Harbin, a business is the purchase of a new vertical flue fire tube boiler structure equipment installation, commissioning process when staff at a boiler pressure gauge index found that the performance of the boiler abnormal, but not so the commissioning personnel when the next step, a sudden loud noise, boiler explosion, a huge flame and furnace pressure debugging of oil spray everywhere, four commissioning personnel are subject to varying degrees of injuries, was taken to hospital for treatment .

Boiler is an energy conversion device, by entering the fuel to the boiler, chemical energy, power, etc., outputs a constant steam heat, hot water or organic heat carrier, to provide support for the heat industries. Meanwhile, the boiler is also a special equipment has a certain risk, when the boiler installation, commissioning, operation, etc., be sure to boiler operation safety first.

Now, Xiao Bian to operational safety considerations gas boiler summarize, we can refer to.

First, start, boost, steam supply

1, before the start of the preparatory work

Internal and external check: Check boiler, burner, a good state of the accessory device; action safety accessories, each of the valves, such as flexible instruments, the correct position.

Check the line voltage to meet the requirements, a variety of normal switch position, respectively, various auxiliary pump starts operating, the burner fan, oil pump is normal.

Boiler Feed: exhaust valve opening, to ensure the normal water level (just below the water level).

2, start

Firstly purging the furnace, induced draft fan suction time is usually about 10 minutes to ensure that no residual gas in the furnace, passing substitutions, and ignition for combustion air supply.

After firing is completed according to the adjustment amount of load required for combustion, the boiler into normal operation.

During startup, to closely monitor changes in water level, water boiler accident or occurrence textile full of water accidents.

Second, the normal operation

1, the water level

Fuel gas-fired boiler water table should be the red line indicating the high, medium and low water level, the operation shall not exceed the maximum safe level or below the minimum safe level.

Rinse water table at least once per shift, when there is suspicion of running water, rinse should always check.

2, steam pressure

Red lines indicate the working pressure gauge should have, so sensitive and reliable, the trap should be flushed at least once a week.

3, safety valve

Safety valve should seal intact, no leakage; once a week manually (or automatically) emission test, and begin start pressure, opening pressure, reseating pressure and test time, participants, etc credited maintenance log book u, for future reference .

4, sewage

Proceed as boiler water quality requirements of water quality testing personnel under the guidance of class 1 or 2 times sewage, sewage incident not too long, generally no more than 10 minutes.

Sewage should (preferably when shutdown), should be closely monitored sewage water level changes, and pay attention to safety at the time of low load, low pressure, high water level.

Many boilers when sharing a sewage mains, while sewage is prohibited.

Third, shutdown

1, the normal shutdown

After normal boiler shutdown should generally be reduced boiler load operation, press the boiler shutdown procedure. Actuated pump water to high water level, pressure steam boiler to be dropped after 0.3MPa flushing water table and sewerage operations, and finally close the raft, cut off the power supply control cabinet, wipe equipment, clean up the environment and health, For water, the water temperature should be below after 70 ℃, before proceeding.

2, emergency shutdown

When the boiler operation in the following situations should immediately shutdown:

Furnace water level drops below the minimum water level gauge visible edges.

Increasing water supply and other measures, but digital still continue to fall.

Boiler water level exceeds the highest visible water table level (full of water), the water still can not see the water level.

All water supply system water pump failure or malfunction, not water to the boiler.

Water gauge or safety valve all the failures.

Endanger the boiler element is damaged and the safety of operating personnel.

Combustion equipment damage, or furnace wall collapse and other red-hot boiler structure is a serious threat to the safe operation of the boiler.

Other anomalies endanger the safe operation of the boiler.

3, maintenance

Before maintenance work should be well prepared, as before entering the drum interior work, must be of sufficient strength to connect all of the metal blocking plate spaced reliable steam, water, sewage and other operation of the boiler pipes, and the drum manholes and hand holes (boiler shell) is opened, so that air convection period.

After the completion of preparations to repair. Should ensure that the quarterly frequency of boiler maintenance and repair of the year.

Advances in technology to the boiler industry into new and innovative ideas, now the boiler manufacturers boiler are easy targets toward the operation forward, but in the use of the boiler, improper operation or other quality problems still exist, these failures will It is causing the direct cause of the explosion boilers. Therefore, when using the boiler must be in strict accordance with safety practices boiler, security incidents strangled in the cradle.

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