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Power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method

A power generation boiler, program optimization technology, applied in pump control, mechanical equipment, machine/engine, etc.

Active Publication Date: 2021-03-26
HEILONGJIANG JIANLONG IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the thin oil pump is used in the thin oil station of the power generation boiler feed water pump, the A and B thin oil pumps are used one by one, and the outlet oil pressure is low (0.07MPa) and the standby oil pump is interlocked to start the standby oil pump. The current oil pump has a problem in the logic execution sequence of the DCS program, which leads to startup. Backup oil pump has 2S delay
A thin oil pump failure has occurred once, the outlet oil pressure dropped to 0.07MPa and B thin oil pump was started, but the outlet oil pressure has dropped to 0.04MPa (trip value) during the start-up process, and the outlet oil pressure low protection tripped to water pump accident

Method used

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  • Power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method

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Embodiment Construction

[0013] refer to figure 1 , the present invention specifically adopts the following embodiments: including B feed water pump A thin oil pump interlocking throwing and cutting line 1, B feed water pump thin oil station outlet oil pressure low line 2, B feed water pump A thin oil pump running line 3, B electric feed water pump high pressure Cabinet trip line 4, B feed water pump B thin oil pump operation line 5, B feed water pump B thin oil pump remote control line 6 and B feed water pump thin oil station fuel tank oil temperature line 7, B feed water pump A thin oil pump interlock switching line 1, B Feed water pump thin oil station outlet oil pressure low line 2, B feed water pump A thin oil pump running line 3, B electric feed water pump high pressure cabinet trip line 4, B feed water pump B thin oil pump running line 5, B feed water pump B thin oil pump far away The control line 6 and the fuel tank oil temperature line 7 of the B feed water pump thin oil station are respectiv...

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Abstract

The invention discloses a power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method, and relates to the technical field of steel equipment. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method comprises a B feed pump A thin oil pump interlocking switching line, a B feed pump thin oil station outlet oil pressure low line, a B feed pump A thin oil pump operation line, an B electric feed pump high-pressure cabinet tripping line, a B feed pump B thin oil pump operation line, a B feed pump B thin oil pump remote control line and a B feed pump thin oil station oil tank oil temperature line which are connected with a DEVICE module through a TIMER logic block, an ANDlogic block and an OR logic block, wherein the DEVICE module is respectively connected with a QOR8 module and an RSFLP module; and the RSFLP module is connected with an opening instruction / starting instruction. According to the power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method, accidents are avoided.

Description

Technical field: [0001] The invention relates to the technical field of iron and steel equipment, in particular to a method for optimizing mutual backup interlocking programs of thin oil pumps in power generation boiler feed water pump thin oil stations. Background technique: [0002] When using thin oil pumps in power generation boiler feed water pump thin oil stations, A and B thin oil pumps are used one by one, and the standby oil pump is started by interlocking when the outlet oil pressure is low (0.07MPa). The problem of the current oil pump in the logic execution sequence of the DCS program leads to startup The standby oil pump has a 2S delay. A thin oil pump failure has occurred once, the outlet oil pressure dropped to 0.07MPa and B thin oil pump was started, but the outlet oil pressure has dropped to 0.04MPa (trip value) during the start-up process, and the outlet oil pressure low protection tripped to The water pump accident happened. Invention content: [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B49/02
CPCF04B49/065F04B49/02
Inventor 徐海波赵立太
Owner HEILONGJIANG JIANLONG IRON & STEEL