gas condensing boiler for sale

Why low nitrogen condensing boiler for sales are more popular in the market? In China, coal pollution is getting worse. In many industries, not only the hotel's heating, operation of the plant machinery, as well as the needs of people's lives and so on. In many places we need to use gas burners. Combustion gas released a lot of atmospheric pollutants. According to the data, the impact of coal emissions of atmospheric pollutants on the ecological environment is getting worse, here to introduce you to why the low nitrogen boiler popular? 1, more professional in terms of low nitrogen boilers, conventional boilers cost first general, conventional boilers used in China is a certain proportion of gas and air for combustion are mixed in, so that the mixing temperature of the aerosol generated by the combustion is relatively high, resulting in low efficiency of energy supply. Second, the existing gas boiler has become the main way of the city's small and medium enterprises use boilers. The main cause of ozone exceeded targets is nitrogen oxide from gas boilers and motor vehicle emissions due to the use of conventional boilers burning coal can not be completely full. Finally, the safety of conventional boilers is problematic, flammable and explosive, and at a temperature change of circumstances such as insufficient fuel, can lead to explosion. 2, the most important advantage of the well-known low nitrogen low nitrogen boiler boiler most predominant feature is the external energy saving, a low nitrogen boiler pipes by using a relatively low thermal conductivity of the heat insulating rock wool insulation, thereby reducing heat boiler amount, to achieve energy saving effect. Low NOx combustion technique premix, by improving fuel combustion condition, thereby suppressing the generation of nitrogen oxide, rather than a simple flue gas treatment. 3, in addition to environmental reasons people choose low-nitrogen in addition to environmental protection boiler, boiler advantages in energy saving is also very obvious. Low nitrogen boiler, the use of advanced technology and zero pressure swirl mixing valve technology, the ratio of air and gas is always constant, variable load, the late running costs can be substantial savings. Also reduce the operating costs of enterprises. Therefore, low nitrogen boiler is the best choice, but also the most sensible choice. To promote the implementation of environmental protection plan, accelerate the improvement of air quality, speed up the process of using low nitrogen boilers to reduce emissions of nitrogen oxides, nitrogen oxides and reduce PM2.5 due to the formation of the secondary reformer. Give us more space to control air pollution.

At 10:00 on September 6 and more, Harbin, a business is the purchase of a new condensing boiler for sale 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.

Method for safe operation of steam condensing boiler for sales steam boiler before use, must be checked for damage of the insulating layer, to check the burner is operating correctly, and to check the position of the opening degree of the valve to ensure it is correct. Must be checked for automatic control instruments and equipment safety equipment accessories, equipment, in order to comply with the requirements. Check item prior to ignition of the steam boiler: open valve before oil circulation pump, oil heating valve is opened, adjusted reasonably high level of the tank, the gas pressure is determined before the natural gas burner ignition must be within the range, the power good . Refers to the operation of the steam boiler is refluxed pressure activated device circulating pump, the circulating pump outlet, inlet, outlet, and the system, it is in the normal range. Circulation pump run for 30 minutes. After the stability of the system, the next step. Open the gas tube steam boiler manual valve, button start-up burner, natural gas burner into the furnace, and then the ignition, the flame remains stable, i.e. is in a safe operating condition. In the firing process steam boiler, if you accidentally quenching phenomenon occurs, the device will automatically interlock burner saver appear. It must be promptly cut off the natural gas pipeline to start the furnace purification. Replacement of the residual gas in the furnace and closed. The system load requirements, temperature requirements and thermal oil outlet, the burner can automatically adjust the size of the fire source.

The output power of the burner should be matched with the rated output of the condensing boiler for sale, and the shape of the flame, such as length and diameter, should be selected to suit the furnace structure. Supply the air needed for fuel combustion from the torch root to make the oil mist or gas and air mix evenly and quickly to ensure complete combustion.

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