Common sense of boiler safety

1. What are the contents of boiler knowledge?

Adjustment method of boiler steam temperature.

Usually, the temperature of superheated steam is regulated by water spray desuperheater. The reheat steam temperature is generally adjusted by flue gas side, and emergency water spraying is only used when the reheater is seriously overtemperature. False water level "false water level" is a temporarily unreal water level.

When the steam drum pressure suddenly drops, because the saturated temperature of boiler water drops to the corresponding pressure, a lot of heat is released to evaporate, so the bubbles in boiler water increase, the volume expands, and the water level rises, forming a false water level. When the steam drum pressure suddenly rises, the corresponding saturation temperature rises, and part of the heat is used for heating furnace water, which reduces evaporation, bubbles in boiler water, volume and water level, which also forms a false water level.

Under what circumstances is a sudden change in pressure? (sudden increase or sudden decrease) 1, sudden change of load; 2. Fire fighting; 3, the safety door action; .

2. What are the precautions for boiler use?

Boiler is an important special equipment that is often used in daily life and production. There are many security problems in the use process. If we can understand and master the principles of these problems, we can effectively avoid the occurrence of safety accidents.

1. Boiler safety valve: one of the most important safety devices in the safety valve room boiler, which can release and relieve the pressure in time in case of overpressure. The safety valve should be adjusted regularly before it can be put into use. During use, it should be discharged manually or tested regularly to ensure that there are no problems such as rust, death and blockage that lead to the failure of the safety valve.

2. Boiler water level gauge: The water level gauge of a steam boiler is a device that visually displays the water level position in the boiler. Higher or lower than the normal water level of the water level gauge is a serious operational error, which is likely to lead to accidents. Therefore, it is necessary to clean the water level gauge regularly and observe the water level position closely during use. 3. Boiler pressure gauge: The pressure gauge directly reflects the operating pressure value of the boiler, indicating that the operator must never run over pressure.

Therefore, the pressure gauge is required to be calibrated once every six months to ensure sensitivity and reliability. 4. Boiler blowdown device: The blowdown device is a device for discharging scale impurities in the boiler, which can effectively control the scaling and slag accumulation of the boiler, and at the same time, it can check whether there is leakage by touching the rear pipeline of the blowdown valve frequently.

5. Constant pressure expansion device of the boiler: The constant pressure expansion device of the hot water boiler is an effective device to prevent the boiler from vaporization overpressure, and it is also an effective device to ensure the smooth circulation of the hot water system without gas accumulation. Users should ensure that it is easy to use. .

3. Boiler safety knowledge

1. The boiler shall be accompanied by "design documents, product quality certificates, safety and maintenance instructions, supervision and inspection certificates (safety performance supervision and inspection certificates) required by safety technical specifications" when leaving the factory.

2, boiler installation, maintenance and transformation. Units engaged in boiler installation, maintenance and transformation shall obtain the qualification certificate of special equipment installation and maintenance issued by the Provincial Bureau of Quality and Technical Supervision before they can engage in boiler installation, maintenance and transformation. Before construction, the construction unit will inform the special equipment safety supervision and management department of the municipality directly under the central government or its jurisdiction in writing of the installation, maintenance and transformation to be carried out, and send the commencement notice to the local county-level quality and technical supervision bureau for the record, and the work can be started after the notice.

3. Acceptance of boiler installation, maintenance and transformation. After the construction is completed, the construction unit shall report the boiler hydrostatic test and installation supervision and inspection to the Special Equipment Inspection Institute of the Bureau of Quality and Technical Supervision. After passing the inspection, the Bureau of Quality and Technical Supervision, the Special Equipment Inspection Institute and the County Bureau of Quality and Technical Supervision will participate in the overall acceptance.

4. Boiler registration. After the acceptance of the boiler, the user must fill in the Boiler (Census) Registration Form in accordance with the Regulations on the Registration and Use of Special Equipment, register with the Bureau of Quality and Technical Supervision, and apply for the Registration Certificate for the Safe Use of Special Equipment.

5, the operation of the boiler. Boiler operation must be operated by certified personnel who have been trained and obtained the certificate of special equipment operators, and the operating procedures, eight systems and six records must be strictly observed during use.

6. Boiler inspection. The boiler shall be inspected regularly once a year, and the boiler without regular safety inspection shall not be used. The safety accessories of the boiler shall be inspected regularly once a year, and the pressure gauge shall be inspected once every six months. Safety accessories without regular inspection shall not be used.

7. It is forbidden to install atmospheric boilers as pressure boilers. It is forbidden to use boilers with three incomplete safety accessories: water level gauge, safety valve and pressure gauge.

4. What are the safety management requirements of the boiler room?

The hot boiler room in the station building shall meet the following requirements: (1) The boiler room shall be separated from other rooms by a partition wall with a fire resistance limit of not less than 3h; (2) Doors and windows in the boiler room should not directly face the points of refueling, gas filling, oil unloading and air leakage; (3) The boiler shall be a small boiler with rated heat supply not exceeding 140kW; (4) When using coal-fired boilers, natural ventilation boilers with dust removal function should be selected, and the outlet of boiler chimney should be 2m higher than the roof, and effective measures should be taken to prevent Mars from escaping.

(5) When using gas water heater for heating, safety devices such as smoke exhaust system and flameout protection should be installed in the water heater room. Buried laying, when trench laying is used, trench should be filled with sand, and partition measures should be taken at the entrance and exit of the building.

Boilers should be inspected once a year. The boiler room should be cleaned regularly during the non-heating period, and it is forbidden to pile up sundries.

During the heating period, when using the boiler for heating, the fire safety operation rules should be strictly implemented, and a special person should be in charge. After the slag is taken out, it should be sprayed with water to put out the fire, and then transported to the designated outdoor place for stacking to prevent fire hazards.

5. Some basic knowledge of boiler

Common sense of safe use of boiler Boiler is a kind of heat energy equipment with high temperature and high pressure, and it is one of the special equipment. It is widely used in institutions, enterprises and all walks of life, and it is a dangerous and special equipment.

Once an accident involving public safety occurs, it will cause great losses to the lives and property of the country and people. For the sake of public safety and the safety of people's lives and property, according to the Regulations of the State Council on Safety Supervision of Special Equipment, the following matters should be paid attention to when using boilers: Precautions 1. When leaving the factory, the boiler shall be accompanied by "design documents required by safety technical specifications, product quality certificate, safety and use maintenance instructions, and supervision and inspection certificate (safety performance supervision and inspection certificate)".

2, boiler installation, maintenance and transformation. Units engaged in boiler installation, maintenance and transformation shall obtain the qualification certificate of special equipment installation and maintenance issued by the Provincial Bureau of Quality and Technical Supervision before they can engage in boiler installation, maintenance and transformation.

Before construction, the construction unit will inform the special equipment safety supervision and management department of the municipality directly under the central government or its jurisdiction in writing of the installation, maintenance and transformation to be carried out, and send the commencement notice to the local county-level quality and technical supervision bureau for the record, and the work can be started after the notice. 3. Acceptance of boiler installation, maintenance and transformation.

After the construction is completed, the construction unit shall report the boiler hydrostatic test and installation supervision and inspection to the special equipment inspection room of the State Bureau of Quality and Technical Supervision. After passing the inspection, the State Bureau of Quality and Technical Supervision, the State Special Equipment Inspection Institute and the County Bureau of Quality and Technical Supervision will participate in the overall acceptance.

4. Boiler registration. After the acceptance of the boiler, the user must fill in the Boiler (Census) Registration Form in accordance with the Rules for the Registration and Use of Special Equipment, register with the State Bureau of Quality and Technical Supervision, and apply for the Registration Certificate for the Safe Use of Special Equipment.

5, the operation of the boiler. Boiler operation must be operated by certified personnel who have been trained and obtained the certificate of special equipment operators, and the operating procedures, eight systems and six records must be strictly observed during use.

Boiler inspection. The boiler shall be inspected regularly once a year, and the boiler without regular safety inspection shall not be used.

The safety accessories of the boiler shall be inspected regularly once a year, and the pressure gauge shall be inspected once every six months. Safety accessories without regular inspection shall not be used. 7. It is forbidden to install atmospheric boilers as pressure boilers.

It is forbidden to use boilers with three incomplete safety accessories: water level gauge, safety valve and pressure gauge.

6. What should I pay attention to on-site safety of steam boilers?

Precautions for on-site safety: The debugging site should be well lit and the roads should be smooth, so as to prevent the steam from spraying out after the safety valve is actuated, and irrelevant personnel are prohibited from staying nearby.

There is a reliable and convenient communication system to keep the contact between the top of the furnace and the main control room, and the debugging personnel should cooperate closely and obey the command. The governor of fuel injection pump is an automatic regulating device, which automatically increases or decreases the fuel supply of fuel injection pump according to the change of diesel engine load, so that the diesel engine can run at a stable speed.

It has been widely used in industrial conveyor belt speed regulation, lighting mediation, computer power consumption, DC fans and other fields. (1) Adjustment of the working speed of the regulator: When debugging the fuel injection pump assembly, the governor is still in an invalid state at the calibrated speed of the oil pump (that is, the flying hammer is still in the full open position), so the fuel supply toothed bar is still in the position with large fuel supply of zui.

When the rotational speed exceeds the calibrated rotational speed, the oil supply toothed bar starts to be pulled to move in the direction of reducing the oil quantity. The speed at this time is called the working speed of the governor.

When the required effective speed exceeds a certain range of rated speed, which is generally 10-20r/mino, the pre-tightening force of the speed regulating spring can be gradually reduced or increased by adjusting the speed regulating screw, and the speed regulating screw can be locked after observing that the toothed bar or pull rod moves to the specified range. .

7. Some basic knowledge of boiler

Common sense of boiler safety use

abstract

Boiler is a kind of heat energy equipment with high temperature and high pressure, and it is one of the special equipment. It is widely used in institutions, enterprises and all walks of life, and it is a dangerous and special equipment. Once an accident involving public safety occurs, it will cause great losses to the lives and property of the country and people. For the sake of public safety and the safety of people's lives and property, according to the Regulations of the State Council on Safety Supervision of Special Equipment, the following matters should be paid attention to when using boilers:

Matters needing attention

1. The boiler shall be accompanied by "design documents, product quality certificates, safety and maintenance instructions, supervision and inspection certificates (safety performance supervision and inspection certificates) required by safety technical specifications" when leaving the factory. 2, boiler installation, maintenance and transformation. Units engaged in boiler installation, maintenance and transformation shall obtain the qualification certificate of special equipment installation and maintenance issued by the Provincial Bureau of Quality and Technical Supervision before they can engage in boiler installation, maintenance and transformation. Before construction, the construction unit will inform the special equipment safety supervision and management department of the municipality directly under the central government or its jurisdiction in writing of the installation, maintenance and transformation to be carried out, and send the commencement notice to the local county-level quality and technical supervision bureau for the record, and the work can be started after the notice. 3. Acceptance of boiler installation, maintenance and transformation. After the construction is completed, the construction unit shall report the boiler hydrostatic test and installation supervision and inspection to the special equipment inspection room of the State Bureau of Quality and Technical Supervision. After passing the inspection, the State Bureau of Quality and Technical Supervision, the State Special Equipment Inspection Institute and the County Bureau of Quality and Technical Supervision will participate in the overall acceptance. 4. Boiler registration. After the acceptance of the boiler, the user must fill in the Boiler (Census) Registration Form in accordance with the Rules for the Registration and Use of Special Equipment, register with the State Bureau of Quality and Technical Supervision, and apply for the Registration Certificate for the Safe Use of Special Equipment. 5, the operation of the boiler. Boiler operation must be operated by certified personnel who have been trained and obtained the certificate of special equipment operators, and the operating procedures, eight systems and six records must be strictly observed during use. Boiler inspection. The boiler shall be inspected regularly once a year, and the boiler without regular safety inspection shall not be used. The safety accessories of the boiler shall be inspected regularly once a year, and the pressure gauge shall be inspected once every six months. Safety accessories without regular inspection shall not be used. 7. It is forbidden to install atmospheric boilers as pressure boilers. It is forbidden to use boilers with three incomplete safety accessories: water level gauge, safety valve and pressure gauge.