EBICO News

Maintenance of 8 Ton Gas Boiler

The 8 ton gas boiler belongs to the fuel gas and oil boiler category, with the main model being the WNS boiler. The WNS boiler is a typical horizontal boiler featuring a three-pass structure with an extremely compact and rational internal layout, saving a considerable amount of space. It boasts an extremely high combustion efficiency, with measured data significantly surpassing that of other products in the industry. The 8 ton gas boiler includes 8 ton gas hot water boilers and 8 ton gas steam boilers, both of which primarily use economically efficient fuels, especially natural gas and biogas, which are representative of clean energy sources. Regarding the maintenance of the 8 ton gas boiler, both during and after shutdown are essential, yet many people seem to focus only on post-shutdown maintenance, believing that no maintenance is needed during operation. This idea is actually a misunderstanding, as the impact of ongoing maintenance and post-shutdown maintenance on the boiler itself is equally significant.

Maintenance work for the 8 ton gas boiler during continuous operation:

(1) If one of the water level gauge glass tubes (panels) is damaged, leaking air, or leaking water, use the other water level gauge to observe the water level and promptly repair the damaged water level gauge.
(2) If the pressure gauge becomes damaged, replace it promptly.
(3) If valves exhibit issues such as leakage, repair or replace them promptly.
(4) Ensure the lubricating oil circuit for rotating machinery remains unobstructed, and maintain an appropriate oil level in the oil cup.
(5) Inspect and repair equipment such as coal feeders, ash removal machines, grate bars, fans, water supply pipeline valves, and water pumps.
(6) Inspect and repair secondary instruments and protective devices.
(7) Regularly clean accumulated dust on equipment.

Requirements for safety accessory tests and inspections on the 8 ton gas boiler:

(1) Manual steam or water release tests for safety valves should be conducted at least once a week, while automatic steam or water release tests should be conducted at least once every three months.
(2) Pressure gauges should be flushed once a week during normal operation for the water trap bend, and calibrated at least once every six months. Mark the working pressure red line on the scale plate and perform calibration or铅 sealing.
(3) Low and high water level alarms, low water level interlocking devices, overpressure and overtemperature alarms, and overpressure interlocking devices should undergo at least one alarm interlocking test per month.

It is important to note that detailed records of scheduled maintenance and safety accessory tests and inspections should be kept, and boiler room personnel must conduct regular spot checks.