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Matters needing attention during the operation of hot water gas boiler systems

Release Date:

2022/05/26 14:23

In industrial heating applications, the operating system of hot water gas boilers is relatively complex, including the boiler system and the piping system. What situations should be paid attention to during the subsequent operation of the hot water gas boiler system? Heze Boiler will provide you with a detailed introduction:

Precautions for Hot Water Gas Boiler Operation

(1) When starting a large circulating water pump, the bypass valve should be opened first to prevent damage to the boiler or radiator due to excessive starting pressure. After the boiler operates normally, the main water valve should be opened and the bypass valve should be closed.

(2) As the water temperature rises and make-up water enters the boiler, gases will continuously precipitate, and the exhaust valve should be opened frequently.

(3) Hot water gas boilers should also be regularly discharged through the blowdown valve during operation. When discharging, pay attention to the stability of the pressure inside the boiler to avoid water hammer accidents caused by the evaporation of boiler water. The network system discharges sewage through a sewage treatment unit.

(4) Minimize the make-up water volume for the hot water heating system, promptly repair leaks, strengthen the management of exhaust and drainage devices, and prohibit the arbitrary discharge of hot water for other purposes. Generally, the system's make-up water volume should be controlled within 1% of the system's circulating water volume.

(5) The expansion pipe of the expansion tank should be installed on the main supply (outlet) pipe of the boiler, and it is strictly forbidden to install valves on the expansion pipe. Anti-freezing measures should also be taken.

(6) Circulating water should maintain a certain flow rate and flow uniformly into each heating surface to prevent evaporation.

(7) Appropriate power outage protection measures should be taken. When a natural circulation hot water gas boiler suddenly loses power, the boiler water can still continue to circulate, posing little threat to safe operation. However, when a forced circulation hot water gas boiler suddenly loses power and forces the pump fan to stop operating, the boiler water circulation stops immediately, which can easily lead to serious accidents due to evaporation. Some larger boiler rooms are equipped with backup power or diesel generators that should be quickly started when the grid power is off to ensure that the water circulation in the system is not interrupted.

(8) To ensure coordinated operation between the boiler firing system and the water circulation system and prevent accidents from occurring and escalating, it is best to interlock boiler coal feeding, ventilation, and other equipment with the water pump, so that the furnace immediately extinguishes after water circulation stops.

(9) Environmental protection is now advocated everywhere, especially for gas boilers. When purchasing boilers, users should pay attention to local environmental protection requirements and choose suitable boilers.

The above introduces the precautions for operating hot water boiler systems. In fact, the safe and stable operation of steam boilers and hot water boilers is very important. The boiler owner should always keep the boiler within the normal operating range to ensure its safe and stable operation.

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