CN103196227B - Conduction oil furnace capable of preventing conduction oil from coking in furnace tube and using method - Google Patents

Conduction oil furnace capable of preventing conduction oil from coking in furnace tube and using method Download PDF

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Publication number
CN103196227B
CN103196227B CN201310108017.4A CN201310108017A CN103196227B CN 103196227 B CN103196227 B CN 103196227B CN 201310108017 A CN201310108017 A CN 201310108017A CN 103196227 B CN103196227 B CN 103196227B
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conduction oil
oil
furnace
heat
dead electricity
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CN103196227A (en
Inventor
王立超
朱琳
王士颖
张艳
李贺松
王恒
王磊
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TIANJIN ZENITH OIL&GAS ENGINEERING CO., LTD.
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ZENITH ENGINEERING Co Ltd
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Abstract

The invention relates to a conduction oil furnace capable of preventing conduction oil from coking in a furnace tube and a using method. A conduction oil circulating pump (10) and a conduction oil circulating space pump (11) can stop working in power losing; a solenoid valve (17) is turned on in power losing, and the conduction oil in the system can flow toward an oil storage tank (7) under the effect of pressure; the solenoid valve (17) in a power-losing oil discharging tube (15) is turned on through interlocking signals in power losing; nitrogen is filled into a high-position expansion groove (6) by utilizing a sealed nitrogen tube (3), and under the effect of pressure and potential difference, the conduction oil can directly flow to a pressurized conduction oil return tube (1'') through an expansion groove auxiliary line (12) and then enters a conduction oil furnace (8); and the conduction oil in the conduction oil furnace tube can enter a low-position oil storage tank (7) through the power-losing oil discharging tube (15). The conduction oil furnace achieves the aim of preventing the conduction oil in the furnace tube from decomposing and coking.

Description

The heat-conducting oil furnace of conduction oil coking in anti-boiler tube and using method
Technical field
The present invention relates to heat conducting furnace, the heat conducting furnace using method of particularly conduction oil coking in anti-heat-conducting oil furnace boiler tube in a kind of dead electricity situation.
Background technology
At present, heat-conducting oil furnace is as a kind of heating furnace that can provide higher temperature under lower operating pressure conditions, and its scope of application constantly expands.Utilize heat-conducting oil furnace heat to be delivered to the equipment of needs heat by organic carrier, conventional organic carrier is conduction oil.The basic structure of conventional thermal conductive oil oven is as shown in Figure 2: comprise body of heater 8, expansion slot 6, oil storage tank 7, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11, between the said equipment and heating equipment, realize closed cycle.Its general principle is: heat-conducting oil furnace heating conduction oil, conduction oil flows into heating equipment through pipeline, and then oil return returns heat-conducting oil furnace through expansion slot, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 and heats, and circulates and so forth.But conduction oil is organic media, inflammable and have the restriction of strict serviceability temperature.After heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, intrasystem conduction oil stops flowing, and furnace temperature cannot reduce at short notice.Directly cause conduction oil in boiler tube to decompose coking, the efficiency affecting heat-conducting oil furnace even causes danger.Existing heat-conducting oil furnace normally maintains conduction oil continuation circulation by starting backup diesel pump 9 in dead electricity situation, and investment is large, needs personnel to arrive execute-in-place valve, time-consuming length during startup, greatly increases the risk of conduction oil coking.
Summary of the invention
The deficiency of large complicated operation is invested in order to overcome existing protected mode; the invention provides heat-conducting oil furnace and the using method of conduction oil coking in a kind of anti-boiler tube; can by switch valve 17 fast conducting protection flow process after heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity; in guarantee system, conduction oil continues flowing, prevents the conduction oil rested in high temperature furnace pipe from decomposing coking.
The technical solution adopted for the present invention to solve the technical problems is:
A heat-conducting oil furnace for conduction oil coking in anti-boiler tube, be connect dead electricity oil exit pipe 15 between heat-conducting oil furnace fuel feed pump 2 and oil storage tank 7, pipe 15 is arranged hand valve 16 and electromagnetic switch valve 17, electromagnetic switch valve 17 is set to dead electricity and opens; Electromagnetic switch valve and heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 are interlocked.
The using method of conduction oil coking in the anti-boiler tube of heat-conducting oil furnace of the present invention, when heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 quit work; Magnetic valve 17 dead electricity is left, and intrasystem conduction oil flows to oil storage tank 7 under pressure; Opened the magnetic valve 17 in dead electricity oil exit pipe 15 by interlocking signal during dead electricity; Utilize sealing nitrogen tube 3, in high-order expansion slot 6, supplement nitrogen, conduction oil oil return pipe 1 after conduction oil flows directly into supercharging by expansion slot subordinate line 12 under pressure and potential difference effect ", enter heat-conducting oil furnace 8; Conduction oil in conduction oil boiler tube enters low level oil storage tank 7 by dead electricity oil exit pipe 15.
Principle is described as follows:
Utilize the sealing nitrogen tube 3 on expansion slot 6 and pressure regulator valve wherein 4, to ensure that expansion drum is with pressure.Between heat-conducting oil furnace fuel feed pump 2 and oil storage tank 7, connect dead electricity oil exit pipe 15, dead electricity oil exit pipe is arranged hand valve 16 and electromagnetic switch valve 17, wherein hand valve 16 is normally opened, and electromagnetic switch valve 17 is set to dead electricity and opens.The object arranging hand valve 16 is when magnetic valve 17 overhauls, and cuts off dead electricity oil exit pipe 15.
By the quick starting protection flow process of switch valve after heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, realize the flowing of conduction oil in system.Under nominal situation, at expansion slot 6 and conduction oil oil return pipe 1 after supercharging " between be connected expansion slot subordinate line 12, expansion slot subordinate line is arranged check-valves 13 and ball valve 14, wherein ball valve 14 is normally opened.The effect of check-valves 13 is that under preventing nominal situation, conduction oil enters expansion slot 8 through expansion slot subordinate line.During normal operation, conduction oil enters expansion slot 8 through conduction oil oil return pipe 1, and then before supercharging, conduction oil oil return pipe 1 ' enters heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11, by conduction oil oil return pipe 1 after supercharging " enter heat-conducting oil furnace 8.Heating equipment is entered by conduction oil fuel feed pump 2 after heating.When heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 quit work.Magnetic valve 17 dead electricity is left, and intrasystem conduction oil flows to oil storage tank under pressure.Opened the magnetic valve 17 in dead electricity oil exit pipe 15 by interlocking signal during dead electricity.Utilize sealing nitrogen tube 3, in high-order expansion slot, supplement nitrogen, conduction oil oil return pipe 1 after conduction oil flows directly into supercharging by expansion slot subordinate line 12 under pressure and potential difference effect ", enter heat-conducting oil furnace.Conduction oil in conduction oil boiler tube enters low level oil storage tank by dead electricity oil exit pipe 15.Due to conduction oil fuel feed pump 2 and rear end equipment pressure high, therefore conduction oil does not flow to conduction oil fuel feed pump 2 in this protection flow process.After heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, rapid conducting can protecting flow process like this, ensureing the flowing of conduction oil in boiler tube, without the need to increasing equipment and controlled investment.If can restore electricity in the short time, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 are opened, and close the magnetic valve in dead electricity oil exit pipe 15 by interlocking signal, system can be recovered rapidly.If cannot restore electricity in the short time, the malleation of expansion slot is utilized all to be entered in oil storage tank by the conduction oil in protection flow process.
The invention has the beneficial effects as follows, contrast with the present invention, enclose original flow process at this, see Fig. 2.After dead electricity, heat conduction oil circulating pump 10 and heat conduction oil circulating pump stand-by pump 11 stop, and personnel hurry to the scene and start backup diesel pump 9 and make conduction oil continue circulation to be unlikely to coking in boiler tube.
Accompanying drawing explanation
Fig. 1 is for improving heat-conducting oil furnace protection schematic flow sheet;
Fig. 2 is conventional thermal conductive oil oven protection schematic flow sheet;
Wherein: 1. conduction oil oil return pipe, conduction oil oil return pipe before 1 ' supercharging, 1 " conduction oil oil return pipe, 2. conduction oil fuel feed pump after supercharging; 3. seal nitrogen tube, 4. pressure regulator valve, 5. Pressure gauge; 6. expansion drum, 7. oil storage tank, 8. heat-conducting oil furnace; 9. backup diesel pump, 10. heat conduction oil circulating pump, 11. heat conduction oil circulating pump stand-by pumps; 12. expansion slot subordinate lines, 13. ball valves, 14. check-valves; 15. dead electricity oil exit pipes, 16. hand valves, 17. electromagnetic switch valves.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is conduction oil protection schematic flow sheet.This heat-conducting oil furnace protection flow process is: between heat-conducting oil furnace fuel feed pump 2 and oil storage tank 7, connect dead electricity oil exit pipe 15, wherein arrange hand valve 16 and electromagnetic switch valve 17, and this electromagnetic switch valve and heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 are interlocked.Expansion slot arranges sealing nitrogen tube 3, pressure regulator valve 4 and pressure instrumentation 5 are wherein set.After heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, electromagnetic switch valve 17 is opened, by sealing nitrogen tube 3, in high-order expansion slot, 6 supplement nitrogen, under pressure and potential difference effect, conduction oil flows directly into 1 by expansion slot subordinate line 12 " conduction oil oil return pipe after supercharging, enter heat-conducting oil furnace 8.Conduction oil in conduction oil boiler tube enters low level oil storage tank 7 by dead electricity oil exit pipe 15.
Under nominal situation, at expansion slot 6 and conduction oil oil return pipe 1 after supercharging " between be connected expansion slot subordinate line 12, wherein arrange check-valves 13 and ball valve 14, wherein ball valve 14 is normally opened.The effect of check-valves 13 is that under preventing nominal situation, conduction oil enters expansion slot 6 through expansion slot subordinate line 12.During normal operation, conduction oil enters expansion slot 6 through conduction oil oil return pipe 1, and then before supercharging, conduction oil oil return pipe 1 ' enters heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11, by conduction oil oil return pipe 1 after supercharging " enter heat-conducting oil furnace 8.Heating equipment is entered by conduction oil fuel feed pump 2 after heating.When heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 dead electricity, heat conduction oil circulating pump 10 and conduction oil circulation stand-by pump 11 quit work.Magnetic valve 17 dead electricity is left, and intrasystem conduction oil flows to oil storage tank under pressure.Opened the magnetic valve 17 in dead electricity oil exit pipe 15 by interlocking signal during dead electricity.Utilize sealing nitrogen tube 3, in high-order expansion slot, supplement nitrogen, conduction oil oil return pipe 1 after conduction oil flows directly into supercharging by expansion slot subordinate line 12 under pressure and potential difference effect ", enter heat-conducting oil furnace.Conduction oil in conduction oil boiler tube enters low level oil storage tank 7 by dead electricity oil exit pipe 15.

Claims (2)

1. the heat-conducting oil furnace of conduction oil coking in an anti-boiler tube, it is characterized in that connecting dead electricity oil exit pipe (15) between heat-conducting oil furnace fuel feed pump (2) and oil storage tank (7), dead electricity oil exit pipe (15) is arranged hand valve (16) and electromagnetic switch valve (17), electromagnetic switch valve (17) is set to dead electricity and opens; Electromagnetic switch valve and heat conduction oil circulating pump (10) and conduction oil circulation stand-by pump (11) are interlocked; Utilize sealing nitrogen tube (3), nitrogen is supplemented in high-order expansion slot (6), conduction oil oil return pipe (1) after conduction oil flows directly into supercharging by expansion slot subordinate line (12) under pressure and potential difference effect, enters heat-conducting oil furnace (8); Conduction oil in conduction oil boiler tube enters low level oil storage tank (7) by dead electricity oil exit pipe (15).
2. the using method of the heat-conducting oil furnace of conduction oil coking in the anti-boiler tube of claim 1, it is characterized in that, when heat conduction oil circulating pump (10) and conduction oil circulation stand-by pump (11) dead electricity, heat conduction oil circulating pump (10) and conduction oil circulation stand-by pump (11) quit work; Electromagnetic switch valve (17) dead electricity is opened, and intrasystem conduction oil flows to oil storage tank (7) under pressure; Opened the magnetic valve (17) in dead electricity oil exit pipe (15) by interlocking signal during dead electricity.
CN201310108017.4A 2013-03-29 2013-03-29 Conduction oil furnace capable of preventing conduction oil from coking in furnace tube and using method Active CN103196227B (en)

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CN104633936A (en) * 2014-12-06 2015-05-20 中国铝业股份有限公司 Conduction oil device

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN2549393Y (en) * 2002-05-29 2003-05-07 王延忠 Safety controller of thermal oil-stove
CN201864244U (en) * 2010-10-26 2011-06-15 江苏双乐化工颜料有限公司 Anti-oxidation device of heat conduction oil system
CN202361628U (en) * 2011-11-03 2012-08-01 华东理工大学工程设计研究院有限公司 Heat conducting oil system of thermal equipment at high position
CN202675626U (en) * 2012-08-09 2013-01-16 山东圣威新能源有限公司 Elevated-tank-free automatic oil supply, exhaust and heat supply flow system of organic heat carrier furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2549393Y (en) * 2002-05-29 2003-05-07 王延忠 Safety controller of thermal oil-stove
CN201864244U (en) * 2010-10-26 2011-06-15 江苏双乐化工颜料有限公司 Anti-oxidation device of heat conduction oil system
CN202361628U (en) * 2011-11-03 2012-08-01 华东理工大学工程设计研究院有限公司 Heat conducting oil system of thermal equipment at high position
CN202675626U (en) * 2012-08-09 2013-01-16 山东圣威新能源有限公司 Elevated-tank-free automatic oil supply, exhaust and heat supply flow system of organic heat carrier furnace

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Address after: 300384 Tianjin Nankai District City, Rong Yuan Road No. 1 Tian Hotel Room 507 building A

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