boiler water level alarm principle

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HOT

θrion Gas Fired Steam Boiler

Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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HOT

Gas(oil) Fired Integrated Hot Water Boiler

Capacity:0.7-14MW

Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.

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HOT

H6 Gas Fired Hot Water Boiler

Capacity:0.7-2.8Mw

Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.

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T7 Vacuum Hot Water Boilerr

Capacity:2.8-7.0Mw

Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.

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HOT

V6 Gas Fired Hot Water Boiler

Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.

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HOT

Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy

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    The invention discloses an automatic liquid level control system of a boiler. The automatic liquid level control system of the boiler is characterized in that the system comprises a boiler body, a water level sensor, a temperature sensor, a controller, an adjusting valve and a water pump, the water level sensor and the temperature sensor are disposed on one side of the boiler body, the …Get Price

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    Sep 24, 2019 · Water Level Alarm Circuit. The electronic water level alarm circuit is connected to the alarm and it is placed at the above electronic water level circuit which is having the capability of alerting the person of a home. When the water level is at high or low or at exceeding the higher limit. The following circuit diagram shows the water level alarm circuit.Get Price

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    water level continuously in steam and hot water boilers, feed water tanks, condensate tanks, expansion vessels etc. The principle is based on measuring the capacitance between the isolated probe in the steam space and the depth of probe immersion in boiler water. The capacitance changes with the rise and fall of the water level andGet Price

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    1st low level alarm - Shuts down the burner at the alarm level, but allows it to re-fire if the level recovers. 2nd low level alarm (often called lockout) - Also shuts down the burner at the alarm level, but the burner controls remain 'locked out' even if the water level recovers and any faults have been rectified. The lockout has to be manually reset to allow the burner to re-fire.Get Price

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    It is also provided with indication units for low, normal and dangerous water levels respectively (with ultra-high water level alarm for boilers ≥2t/h). The dangerous water level is interlocked with the burner. In case of dangerous water level, the alarm will be sent out and the burner stopped to avoid damage due to lack of water.Get Price

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    The test is achieved by lowering the float to the low water alarm level, by the following means: The float rod includes a cup, above the float, which is fed with water from the boiler feed pump via small bore pipework and valves through the control mounting flange (Figure 4) for approximately 24 seconds. The additional weight overcomes theGet Price

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    Aug 05, 2018 · A low water level alarm will produce audible warning in event of low water level followed by a low low water level alarm and shut down. These alarms will protect boiler from any damage in event of low water level. It is a safety device working in parallel with the fusible plug to avoid dry running.Get Price