A spring-type self-stabilizing device for fuel system

Abstract

The invention discloses a spring-type self-stabilizing device for a fuel system, which includes an oil tank and an oil storage tank. The oil tank is sequentially connected with an oil pump and a check valve through pipelines, and the outlet of the check valve passes through all the way. The electric valve in front of the furnace is connected to the fuel oil system in front of the furnace, and the other path is connected to the bottom of the oil storage tank through the electric valve in the fuel storage tank. A fuel oil pressure transmitter in front of the furnace is installed on the pipeline between the electric valve in front of the furnace and the fuel oil system in front of the furnace , the travel switch, the high liquid level sensor, the low liquid level sensor, the oil storage tank pressure transmitter, the oil pump, the oil storage tank electric valve, the electric valve in front of the furnace, and the fuel pressure transmitter in front of the furnace are all connected to the automatic control cabinet through cables The automatic control cabinet is used to control the start or stop of the oil pump, and control the opening or closing of the electric valve of the oil storage tank and the electric valve in front of the furnace. The invention can not only save a large amount of power consumption of the oil pump, but also prolong the service life of the oil pump and reduce the maintenance workload of the vulnerable parts of the fuel system.

Description

technical field [0001] The invention relates to the technical field of fuel oil systems of thermal power boilers, in particular to a spring-type self-stabilizing device for fuel systems. Background technique [0002] In case of emergency (such as failure of key equipment) or low-load operation, the thermal power boiler needs to be put into the oil gun for stable combustion, so the fuel system needs to be in a standby state at all times, which will make the oil pump run for a long time. According to the estimation that the oil pump supplies oil to two boilers at the same time, the cumulative operating hours of the oil pump exceeds 6,000 hours in the whole year, but in fact, the average cumulative time of the oil gun in operation throughout the year is less than 200 hours, that is to say, the actual utilization rate of the oil pump is only 3.3 %, and 96.7% of the time is in a no-load idling state, which will cause a great waste of electric energy. [0003] In response to this...

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Problems solved by technology

[0004] In order to solve the shortcomings and deficiencies of the prior art, a spring-type self-stabilizing device for the fuel system is provided, which has an advanced principle and a simple structure. The oil pressure of the front fuel system is automatically stabilized at the design value, which can not only meet the conditions that the oil gun can be used for combustion at any time, but also meet the pressure and flow requirements of the combustion-supporting fuel during the start-up of the oil pump (usually no more than 20 minutes), reaching " The oil pump does not need to be started during the normal operation of the boiler, and the oil pump is only started when oil needs to be put in", which not only saves a lot of power consumption of the oil pump, but also prolongs the service life of the oil pump and reduces the maintenance workload of the vulnerable parts of the fuel system

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