How to operate the boiler safely

The inlet and outlet flue of the waste heat boiler is provided with expansion joints to absorb the expansion of various components of the boiler. Moreover, the boiler body is equipped with expansion guide device to ensure the free expansion of the furnace body, limit the displacement and prevent the deformation and vibration of the furnace body. In order to ensure the sealing effect of the waste heat boiler, the overall layout of the waste heat boiler adopts the membrane wall structure, which not only ensures the sealing and insulation effect, but also reduces the accumulation of ash slag and improves the efficiency of the waste heat boiler. The boiler can be personalized according to the needs of users, and can be combined arbitrarily, and freely. The evaporator and economizer adopt modular design with high assembly rate, reducing the amount of on-site installation works.

The boiler is a dangerous operation integrating high-pressure vessels, pressurized pipes and special equipment. The safe and economic operation of the boiler and the maintenance of the equipment play an important role in ensuring the smooth operation of the boiler and extending the service life of the boiler.

1、 Standardized shift handover system:

According to the situation of the boiler and in combination with the actual work experience, we have formulated a management shift system suitable for the safe operation of the boiler, which is supervised by the workshop and carefully implemented by the staff mainly from the following aspects:

The stoker must be on duty 15 minutes in advance and wear labor protection articles (including labor protection shoes, protective eyes and protective gloves) correctly. First, wash the water level gauge correctly: wear protective gloves, and do not face the water level gauge face to face. First wash the water level gauge with steam, then wash it with steam, and finally wash it with water. Then wash it repeatedly until the water level in the glass tube of the boiler water level gauge is clearly visible, so as to avoid dirt blocking in the water level gauge and causing false water level. When taking over the shift, the stoker shall push and pull the sliding ash doors on both sides of the boiler to scatter the residual ash in the boiler air chamber, so as to prevent the accumulated ash in the air chamber from being caked for a long time and burning down the sliding connecting rod of the air chamber, so as to ensure the smooth air supply in each air chamber of the boiler and promote the boiler combustion to achieve the best.

During the shift, the stoker should also open the observation holes at the rear of the boiler or at both sides of the boiler, wear protective eyes to check the combustion status of the fuel in the boiler furnace, the length of the furnace fire, and whether there are other abnormal phenomena in the combustion, and correctly grasp the situation of the fuel inside the boiler, so as to correctly and reasonably allocate the furnace temperature and production steam supply pressure of the boiler.

After seeing the fire of the boiler, start to check the operation of the boiler's paver, mainly to check whether the induced draft fan, blower and feed pump are vibrating, whether the oil level of each paver is normal, whether the packing of the boiler's feed pump is leaking, and whether each unit is damaged (generally judged by sound)

Finally, check whether the indication of the control instrument on the operation panel is normal, whether the door of each distribution cabinet is closed, whether the indicator lights are damaged, and whether the indication is correct.

2、 Correctly implement the standard operating procedures of the boiler

Before the operation of the boiler, it is necessary to master the operating procedures for boiler laying, adjust the grate governor, first turn on the grate power supply, then turn on the governor control switch, and finally adjust the governor current to control the boiler grate speed.

We all know that the boiler feed water regulation is very important for the safe operation of the boiler. Therefore, the stoker should correctly operate the boiler feed water system. The boiler should keep the boiler feed water uniform and normal. Generally, it should be kept at the middle water level of the boiler water level gauge. Our boiler can ensure the normal water supply of the boiler by regulating the electronic actuator or regulating the frequency conversion switch.

In normal boiler operation, we should also correctly allocate the air supply of the boiler according to the performance difference of the fuel, and adjust the air panels of the air chambers on both sides of the boiler according to the length of the fire bed of the boiler. In order to avoid burning out the coal hopper in front of the boiler, the first air chamber on both sides of the boiler is normally closed, and the last one is also closed.

In addition, we also need to regularly and timely remove the accumulated ash at the convection tube bundle inside the boiler. After many tests, we have installed ash hoppers on both sides of the boiler. The ash is scheduled to be discharged every 8 hours (one shift).

In order to strengthen the management of the boiler in operation, our stoker makes an inspection tour once an hour, mainly to check whether the boiler fuel combustion condition, the arch angle inside the furnace and the boiler paving equipment operate normally. Strictly implement the shift system of the stoker (every 2 hours of operation and patrol).

The last is the handling of simple boiler faults. As boiler operators, they should not only maintain the normal operation of the boiler, but also be familiar with the handling of simple boiler faults. Especially in case of emergency power failure, we should not panic or blindly do it. First, check the water level of the boiler, and be sure. Turn on the steam reciprocating pump of the boiler to add water to the boiler until the normal water level of the boiler. In addition, when the water supply system of the boiler breaks down, if the boiler is short of water or full of water, we must correctly apply the emergency shutdown. In particular, the boiler cannot be filled with water immediately in case of serious water shortage. The boiler can be filled with water only after the boiler is cooled down after the emergency stop. Otherwise, the boiler pipe explosion or explosion accident will occur. Therefore, the boiler operator must take corresponding measures according to different situations. For the treatment of the boiler full water fault, the blowdown valve should be opened in time to drain the boiler. There are also faults of boiler laying machine. Our common ones are: the boiler grate stops running, the slag extractor or ash extractor is blocked or stops running, the boiler control instrument fails, and so on. When such failures occur, we usually have equipment professionals to repair them.

As the operators of special boiler equipment, they should correctly implement the safe operation regulations of the boiler to ensure the safe and economic operation of the boiler, and also regularly carry out training and study. Generally, the municipal boiler security inspection department should carry out training, and only after passing the examination can they take up the post with certificates.

Therefore, the safe and economic operation of the boiler is not a word or a day, it is a constant work. It requires us to correctly use professional technical knowledge and operate carefully according to the standard safe operation procedures of the boiler to protect our safe production!

The above is Jiangsu Sifang Boiler's answer to this question. If you have any questions about other boiler related issues, please consult Jiangsu Sifang Boiler's online customer service or call 0516-85871846 or 0516-85532705. Jiangsu Sifang Boiler's professional technicians will answer your questions in time.