CN1690892A - Automatic control system for heating furnace in oilfield - Google Patents
Automatic control system for heating furnace in oilfield Download PDFInfo
- Publication number
- CN1690892A CN1690892A CN 200410027150 CN200410027150A CN1690892A CN 1690892 A CN1690892 A CN 1690892A CN 200410027150 CN200410027150 CN 200410027150 CN 200410027150 A CN200410027150 A CN 200410027150A CN 1690892 A CN1690892 A CN 1690892A
- Authority
- CN
- China
- Prior art keywords
- control system
- heating furnace
- flame
- fuel
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 238000010304 firing Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 235000015111 chews Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
A control system for heating furnace on oil field belongs to oil industry domain and auto control system of heating furnace, and comprises temperature out control system, burning proportioning control system for fuel and air, ignition system and flame security detection control system, which is characterized in that aforementioned temperature out control system of heating furnace comprises an intelligence fuzzy PID thermoregulator to adjust heating segment temperature and a temperature control value; burning proportioning control system for fuel and air comprises two intelligence proportional controller and two electric drive actuator used to control air door opening; ignition system comprises electric igniter, program controller and firing solenoid valve, and realizes auto fire. Flame security detection control system comprises ultraviolet flame detector and solenoid valve to control fuel. The control of this invention is reasonable, can control temperature out efficiently; the flame and ignition systems are safe, reliable and convenient to operate.
Description
Technical field:
The present invention relates to a kind of oil field heating furnace automatic control system, it belongs to the automatic control system in petroleum industry field, especially for the automatic control system of oil field heating furnace.
Background technology:
No matter oil field heating furnace is two-in-one stove or outer defeated stove, and its common characteristic is that the retardation time of heating furnace is long, and after tested, be one hour its retardation time the shortest, and what have reaches several hours; The 2nd, the load variations of heating furnace is big, and the load of heating furnace has only 20% sometimes, reaches 100% sometimes, even short time internal loading 120%; The 3rd, load variations is frequent; The 4th, disturbing factor is a lot of.As the fuel gas pressure instability, the time low when high, discharge instability, load instability etc.All be to disturb to be stranded element.For such control system, the outlet temperature of controlling heating furnace with conventional controller can't realize.In control system, adopted the infrared ray flame monitor at present, not only it is to the flame sensitivity, also responsive in the same old way to radiation of burner hearth heat, and be heat insulation in the oil field heating furnace burner hearth with refractory brick, in blowing out half an hour, radiation heat exists, flame monitor still indicates flame normal, at all can not fuel shutoff gas, and fuel gas continues to enter burner hearth, finally cause furnace explosion, such accident is of common occurrence.Existing firing system is the alternating voltage sparking owing to what adopt, and it is dangerous to strike sparks, and the sparking effect is not good yet.The control of air and rock gas proportioning is directly connected to the thermal efficiency of heating furnace, and air excess or too low all can reduce the thermal efficiency of heating furnace, and only a few is also by the assembling ratio control system, but because controlling schemes is unreasonable, its control effect is also relatively poor.
Summary of the invention:
The object of the present invention is to provide a kind of safety, efficient, oil field heating furnace outlet temperature automatic control system accurately.
The object of the present invention is achieved like this:
A kind of oil field heating furnace automatic control system, it comprises furnace outlet temperature controlling system, fuel and air burning proportioning control system, firing system and flame security detection control system, it is characterized in that described furnace outlet temperature controlling system comprises an intelligent fuzzy PID temperature regulator and a temperature control valve that is used to regulate heating furnace bringing-up section temperature; Described fuel and air burning proportioning control system are that an intelligent proportional controller and control fire are chewed the vortex flow transmitter of throttle opening and automatically performed device; Described flame security detection control system comprises the solenoid valve of flame monitor and control fuel.
Described vortex flow transmitter is two, is connected with electric actuator respectively on described two vortex flow transmitters.
Ignition in the firing system is the pulsed electron lighter.
Flame monitor in the flame monitoring system is a ultraviolet flame detector.
The present invention controls rationally, controls effectively, can control the aperture of air door accurately, thereby effectively control the outlet temperature of heating furnace; Flame and firing system are safe and reliable, use easy to operate.
Description of drawings:
Accompanying drawing 1 is a system flow synoptic diagram of the present invention
Accompanying drawing 2 is a furnace outlet temperature control system synoptic diagram of the present invention
Accompanying drawing 3 is the fuel and the air burning proportioning control system synoptic diagram of wood invention
Accompanying drawing 4 is a FCS synoptic diagram of the present invention
Accompanying drawing 5 is an automatic Iganition control system synoptic diagram of the present invention
Embodiment:
Be embodiments of the invention with accompanying drawing 1,2,3,4,5 below, the present invention is further specified
As shown in Fig. 1,2,3:
Described furnace outlet temperature controlling system comprises an intelligent fuzzy PID temperature regulator TIC and a temperature control valve M who is used to regulate the bringing-up section temperature; Described intelligent fuzzy PID temperature regulator is a kind of intelligent fuzzy proportional band, integration, derivative controller.P, I, D represent proportional band, integration and differential respectively.Described fuel and air burning proportioning control system are that an intelligent proportional controller and fuel flow rate transmitter FT and DZ01 or DZ02 electric actuator are formed.In the present embodiment, described flow transmitter FT is two, is connected with electric actuator DZQ1, DZQ2 respectively on described two flow transmitter FT1, FT2.The fuel of heating furnace and the control of air proportioning utilize intelligent proportional governor, the aperture of control air door, as long as before heating furnace comes into operation, heating furnace is loaded respectively surely on 30%, 70%, according to measured fuel gas flow signal, adjust the aperture of air door respectively, make the oxygen content of flue gas maintain 4% respectively, adjust the correlation parameter of proportioning regulator, then regulator is put into operation.The aperture of air door will be followed the proportional variation of fuel flow signal later on, and the oxygen content in its flue gas maintains within 2%～5% all the time, makes the thermal efficiency of heating furnace be in optimum condition, and guarantee no carbon monoxide contaminated air in the flue gas.The fuel gas flow is regulated by the furnace outlet temperature controller, be unfixed, and the aperture of air door is to follow the fuel gas fluctuations in discharge.Because the approximate linear dependence of the aperture of air mass flow and air door as long as accurately control the aperture of air door, just can accurately realize fuel gas flow and air mass flow proportioning.Described proportional controller FIC, flow transmitter FT are prior aries, and electric actuator DZQ is another first discloseder patented product of the applicant.
Described in accompanying drawing 1,4:
The flame monitoring system is one of critical system that guarantees the heating furnace safe operation.The heating furnace majority in oil field is Shuan Huozui, twin furnace, single chimney.In case because load is too low or too high, a certain fire is chewed fire extinguishing or taken off fire, or certain fire chews and stops up flame-outly, and fuel shutoff at once in order to avoid flame-out fire is chewed and continued to flow into a large amount of fuel and infiltrate in the flue gas, is blasted.Adopt ultraviolet flame watch-dog HJQ among the present invention, monitoring flame is formed fuel monitoring system with solenoid valve DS1, when two fire are chewed all just often, solenoid valve DS1 is logical, fuel enters Huo Zui, and fire is chewed normal combustion, in case two fire chew in one or two fire extinguishing, solenoid valve DS1 fuel shutoff gas, make the heating furnace fire extinguishing, guarantee that no fuel enters burner hearth, can not form explosion condition.Adopt the ultraviolet flame watch-dog, fool proof reliable.Because ultraviolet ray is insensitive as sunlight, light and radiation heat to other light only to the flame sensitivity, as long as flame one extinguishes, fuel shutoff gas at once, blowing out, so, adopt the ultraviolet flame watch-dog, fool proof reliable
As shown in accompanying drawing 1,5:
As shown in accompanying drawing 1,5:
Safety ignition system also is to guarantee one of heating furnace safe operation and handled easily system, adopted pulsed electron automatic ignitor DF among the present invention, utilize the pulse voltage sparking, high pulse voltage has only 400 volts, the sparking performance is good, safe and reliable, when lighting a fire at every turn, as long as before heating furnace, click fire point button, just can light a fire automatically.Other parts of Iganition control system are same as the prior art.Igniter solenoid valve DM, IGNITION CONTROL case DHP and blower fan GFJ in this system, have also been comprised.
As shown in accompanying drawing 1,01 is the stop valve of system, the 02, the 03rd, and the igniter solenoid valve DM that starting ignition is used in the firing system; 04 is last stop valve, and 05 is downstream cut-off valve, under the situation that heating furnace runs well, and last stop valve 04, following stop valve 05 is an opening, when automatic control system breaks down, and last stop valve 04, following stop valve 05 is a closed condition, and by-pass operation valve 06 is opened, and realizes manually control.T1 is the electric heating group, and TIA is an alarm.SR-100 is that fire is chewed.
Claims (4)
1, a kind of oil field heating furnace automatic control system, it comprises furnace outlet temperature controlling system, fuel and air burning proportioning control system, firing system and flame security detection control system, it is characterized in that described furnace outlet temperature controlling system comprises an intelligent fuzzy PID temperature regulator (TIC) and a temperature control valve (M) that is used to regulate heating furnace bringing-up section temperature; Described fuel and air burning proportioning control system are that an intelligent proportional controller (FIC) and control fire are chewed the vortex flow transmitter of throttle opening and automatically performed device (DZQ1, DZQ); Described flame security detection control system comprises the solenoid valve (DF) of flame monitor (HDQ) and control fuel.
2, the oil field heating furnace automatic control system described in claim 1, it is characterized in that described vortex flow transmitter (FT) is two, on described two vortex flow transmitters (FT1, FT2), be connected with electric actuator (DZQ1, DZQ2) respectively.
3, the oil field heating furnace automatic control system described in claim 1 or 2 is characterized in that the ignition (DF) in the firing system is the pulsed electron lighter.
4, the oil field heating furnace automatic control system described in claim 1 is characterized in that the flame monitor in the flame monitoring system is ultraviolet flame detector (HDQ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271508A CN100483273C (en) | 2004-04-30 | 2004-04-30 | Automatic control system for heating furnace in oilfield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271508A CN100483273C (en) | 2004-04-30 | 2004-04-30 | Automatic control system for heating furnace in oilfield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1690892A true CN1690892A (en) | 2005-11-02 |
| CN100483273C CN100483273C (en) | 2009-04-29 |
Family
ID=35346380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100271508A Expired - Lifetime CN100483273C (en) | 2004-04-30 | 2004-04-30 | Automatic control system for heating furnace in oilfield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100483273C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458604C (en) * | 2006-03-09 | 2009-02-04 | 上海工程技术大学 | Material balance intelligent control system |
| CN101256418B (en) * | 2008-03-28 | 2010-06-09 | 清华大学 | Combination control method for exit temperature of heating furnace |
| CN101270916B (en) * | 2007-03-21 | 2010-12-22 | 刘振华 | Oil field individual well tank oil transportation and heating method |
| CN101655245B (en) * | 2009-09-04 | 2011-03-16 | 江苏焱鑫科技股份有限公司 | Multiparameter automatic control method of industrial furnace burner |
| CN101329110B (en) * | 2008-07-14 | 2011-07-13 | 深圳市佳运通电子有限公司 | Full-automatic control system of oil field heating furnace |
| WO2012055222A1 (en) * | 2010-10-27 | 2012-05-03 | 宝山钢铁股份有限公司 | Method and device for controlling furnace temperature of burning heating furnace |
| CN103591981A (en) * | 2012-08-16 | 2014-02-19 | 中国石油化工集团公司 | Remote monitoring diagnosis method for refining furnace energy consumption |
| CN104266223A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas control device for controlling air-fuel ratio of burning through air flow meter |
| CN104329687A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Combination type safety control device and method for preventing instant exploding of petrochemical heating furnace |
| CN104390354A (en) * | 2014-10-17 | 2015-03-04 | 中国石油天然气股份有限公司 | Temperature accurate control device and method for oil field negative pressure type heating furnace |
| CN105042631A (en) * | 2015-07-10 | 2015-11-11 | 吴鹏 | Temperature control method and system for boiler |
| CN109668448A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | Prevent heating furnace from dodging quick-fried method in forced ventilation switching gravity-flow ventilation rear hearth |
| CN110726246A (en) * | 2018-07-17 | 2020-01-24 | 航天科工惯性技术有限公司 | Automatic ignition and temperature control method and system for water jacket heating furnace |
| CN112033138A (en) * | 2020-08-25 | 2020-12-04 | 浙江石油化工有限公司 | Double-hearth tubular heating furnace drying furnace |
| CN113282119A (en) * | 2021-07-20 | 2021-08-20 | 深圳市佳运通电子有限公司 | Temperature control method for oil field heating furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338471A (en) * | 2011-09-02 | 2012-02-01 | 中国石油天然气股份有限公司 | Optimized operation monitoring method for heating furnace |
-
2004
- 2004-04-30 CN CNB2004100271508A patent/CN100483273C/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458604C (en) * | 2006-03-09 | 2009-02-04 | 上海工程技术大学 | Material balance intelligent control system |
| CN101270916B (en) * | 2007-03-21 | 2010-12-22 | 刘振华 | Oil field individual well tank oil transportation and heating method |
| CN101256418B (en) * | 2008-03-28 | 2010-06-09 | 清华大学 | Combination control method for exit temperature of heating furnace |
| CN101329110B (en) * | 2008-07-14 | 2011-07-13 | 深圳市佳运通电子有限公司 | Full-automatic control system of oil field heating furnace |
| CN101655245B (en) * | 2009-09-04 | 2011-03-16 | 江苏焱鑫科技股份有限公司 | Multiparameter automatic control method of industrial furnace burner |
| US9383745B2 (en) | 2010-10-27 | 2016-07-05 | Baoshan Iron & Steel Co., Ltd. | Method and device for controlling furnace temperature of burning heating furnace |
| WO2012055222A1 (en) * | 2010-10-27 | 2012-05-03 | 宝山钢铁股份有限公司 | Method and device for controlling furnace temperature of burning heating furnace |
| CN103591981A (en) * | 2012-08-16 | 2014-02-19 | 中国石油化工集团公司 | Remote monitoring diagnosis method for refining furnace energy consumption |
| CN104266223A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas control device for controlling air-fuel ratio of burning through air flow meter |
| CN104390354A (en) * | 2014-10-17 | 2015-03-04 | 中国石油天然气股份有限公司 | Temperature accurate control device and method for oil field negative pressure type heating furnace |
| CN104329687A (en) * | 2014-10-22 | 2015-02-04 | 中国石油化工股份有限公司 | Combination type safety control device and method for preventing instant exploding of petrochemical heating furnace |
| CN105042631A (en) * | 2015-07-10 | 2015-11-11 | 吴鹏 | Temperature control method and system for boiler |
| CN109668448A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | Prevent heating furnace from dodging quick-fried method in forced ventilation switching gravity-flow ventilation rear hearth |
| CN110726246A (en) * | 2018-07-17 | 2020-01-24 | 航天科工惯性技术有限公司 | Automatic ignition and temperature control method and system for water jacket heating furnace |
| CN112033138A (en) * | 2020-08-25 | 2020-12-04 | 浙江石油化工有限公司 | Double-hearth tubular heating furnace drying furnace |
| CN113282119A (en) * | 2021-07-20 | 2021-08-20 | 深圳市佳运通电子有限公司 | Temperature control method for oil field heating furnace |
| CN113282119B (en) * | 2021-07-20 | 2021-09-21 | 深圳市佳运通电子有限公司 | Temperature control method for oil field heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100483273C (en) | 2009-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100483273C (en) | Automatic control system for heating furnace in oilfield | |
| US5575274A (en) | Gas log fireplace system | |
| US5581995A (en) | Method and apparatus for detecting burner blowout | |
| US3932111A (en) | Apparatus for incinerating combustible wastes | |
| US4171944A (en) | Combined smoke detection and furnace shut off device | |
| CA2816005C (en) | Method and apparatus for heating metals | |
| GB2070745A (en) | Natural draft combustion zone optimizing method and apparatus | |
| CN104456557B (en) | Domestic waste incineration gas burner system | |
| US5347981A (en) | Pilot pressure switch and method for controlling the operation of a furnace | |
| CN104421959A (en) | Gas burning system and igniting method thereof | |
| JPH0115773B2 (en) | ||
| WO2012058587A2 (en) | Hot surface ignition assembly for use in pilots for flaring, incineration, and process burners | |
| CN201672513U (en) | Explosion-proof gas burner | |
| CN213810611U (en) | Torch combustion control device | |
| CN203533611U (en) | Fuel gas combustion system | |
| JP3437951B2 (en) | Combustion control system for carbonization gasifier | |
| CN2615511Y (en) | Low-heat valve burner | |
| CN204268475U (en) | Domestic waste incineration gas burner system | |
| CN211176783U (en) | Natural gas combustion closed-loop control system | |
| US7604478B2 (en) | Vapor resistant fuel burning appliance | |
| WO2000050815A1 (en) | Oxygen depletion sensor | |
| GB2280023A (en) | Detecting air/fuel gas ratio in heating appliance. | |
| CN220287464U (en) | Air supply pipeline structure for torch pilot burner | |
| CN219140828U (en) | Water jacket furnace ignition automatic control system | |
| EP4191134A2 (en) | A device for determining an earliest flame appearance time in an air-gas mixture burning appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |