(2) Safety management system, specifying the requirements of fire prevention, explosion prevention and preventing non-operating personnel from entering the boiler room at will, measures to ensure smooth passage, emergency plans and accident handling methods, etc.
(3) Operating procedures of boilers and auxiliary equipment, including inspection and preparation before equipment is put into operation, operating methods of startup and normal operation, and operating methods of normal shutdown and emergency shutdown.
(4) Operation management and operation personnel have received pre-job professional knowledge and safety technology training and education, and they have been certified after passing the examination.
(5) Equipment operators shall meet the specified requirements and wear complete labor protection articles.
(6) Firefighters, water quality chemists and other special operators hold the operation certificate of special operators.
(7) Equipment maintenance system, contents and requirements of boiler shutdown (standby) rust prevention, and maintenance cycle, contents and requirements of boiler body, safety accessories, safety protection devices, automatic instruments, combustion and auxiliary equipment.
(8) Water (medium) quality management system, specifying the items and qualified standards for regular water (medium) quality inspection.
(9) Boiler safety inspection record:
(1) Operation records of boilers and combustion and auxiliary equipment.
(2) Records of water treatment equipment operation and soda water quality inspection
③ Handover record
(4) Maintenance records of boilers and combustion and auxiliary equipment
(5) Inspection records of boilers and combustion and auxiliary equipment
⑥ Record of boiler operation faults and accidents
⑦ Boiler shutdown maintenance record
(10) certificate: the boiler has quality certificate, use license, annual inspection certificate, strength calculation and installation instructions.
2. Inspection of boiler safety accessories
(1) safety valve
① Each boiler should be equipped with at least two safety valves (except the economizer safety valve), which should be installed vertically at the highest position of the boiler to ensure smooth exhaust and lead to a safe place.
(2) The safety valve shall be inspected with constant pressure at least once a year, and the lead seal shall be intact, recorded and signed.
(3) Automatic emission test once a month, recorded and signed.
(4) Manual emission test once a week, recorded and signed.
(2) Water level gauge
(1) The water level gauge is clearly marked (red bar), indicating the highest and lowest safe water levels and the normal water level. The lower visible edge of the water level gauge is at least 25mm lower than the lowest safe water level and the upper visible edge is at least 25mm higher than the highest safe water level. The normal water level is in the middle of the water level gauge.
(2) The steam-water connecting pipe between the water level gauge and the steam drum is equipped with a valve, and the inlet valve for boiler operation must be in the fully open position.
(3) The water level gauge is sensitive and reliable, and the water level gauge shall be flushed at least once per shift, so as not to form illusion.
(4) The glass tube water level gauge should have protective devices (such as protective cover and quick-closing valve). ), but shall not affect the normal observation of water level.
(3) Pressure gauge
① The boiler must be equipped with a pressure gauge directly connected with the steam space of the drum (shell).
(2) According to the working pressure, the measuring range of the pressure gauge should be 1.5 ~ 3 times of the working pressure.
(3) The dial diameter should not be less than 100㎜, and the dial of the meter should be marked with the red line of the highest working pressure.
(4) The maximum working pressure of the boiler is less than 2.5Mpa, the accuracy of the pressure gauge is not lower than 2.5, and the working pressure of the boiler is greater than or equal to 2.5Mpa, and the accuracy of the pressure gauge is not lower than 1.5.
⑤ The connecting pipe between the pressure gauge and the gas cylinder is equipped with a three-way valve, which is effective for purging the pipeline, replacing and calibrating the pressure gauge.
⑥ The pressure gauge set in the steam space has a trap pipe, and the three-way valve is installed between the pressure gauge and the trap pipe and can be opened flexibly.
All landowners pressure gauge device is complete (pressure gauge, trap, three-way cock). Should be checked once every six months, the seal is intact.
(4) protection device
(1) Over-temperature alarm and interlock protection device. The over-temperature alarm device is installed at the outlet of the hot water boiler. When the boiler water temperature exceeds the specified water temperature, it will automatically give an alarm to remind the firemen to take measures to reduce combustion. After the over-temperature alarm is interlocked with the interlock protection device, it can also automatically cut off the fuel supply and stop blowing and sucking air at the same time of over-temperature alarm, so as to prevent the hot water boiler from being damaged or exploded due to over-temperature.
② High and low water level alarm and low water level interlock protection device. When the water level in the boiler is higher than the highest safe water level or lower than the lowest safe water level, the water level alarm will automatically give an alarm to remind firefighters to take measures to prevent accidents.
③ Boiler flameout protection device. When the boiler furnace flameout, the boiler flameout protection device acts to cut off the fuel supply and send out corresponding signals.
(5) Water supply equipment
(1) is equipped with a standby pump, which must be available at any time.
(2) The standby power supply for steam boiler water supply must be powered on at any time and can be connected.
(6) Water quality assurance
(1) The boiler shall conduct water quality tests regularly as required.
(2) The water quality analysis and testing items are complete, and the hardness and PH value are tested once a day to ensure the water quality is qualified.
(3) The sodium ion exchanger, salt pump and water treatment system must be put into normal use.
3, boiler maintenance safety requirements
Need to enter the boiler for maintenance work, should meet the following requirements:
1. Before entering the boiler drum (shell) for work, the steam, hot water, water supply, sewage and other pipelines connected with other operating boilers must be reliably separated by metal baffles with sufficient strength to indicate the partition position (power plant boilers have valves); Boilers using oil and gas as fuel must cut off the oil and gas sources reliably;
2. Before working inside the drum (shell), the manhole on the drum (shell) and the hand hole on the header must be opened to make the air convection for a period of time, and someone should be guarded outside the boiler when working;