CN105928003B - A kind of control method on adjusting SCV burner fuel quantity delivereds - Google Patents
A kind of control method on adjusting SCV burner fuel quantity delivereds Download PDFInfo
- Publication number
- CN105928003B CN105928003B CN201610227340.7A CN201610227340A CN105928003B CN 105928003 B CN105928003 B CN 105928003B CN 201610227340 A CN201610227340 A CN 201610227340A CN 105928003 B CN105928003 B CN 105928003B
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- China
- Prior art keywords
- natural gas
- adjusting valve
- formula
- lng
- plc
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/04—Gaseous fuels
Abstract
The present invention relates to SCV burner control technology fields, more particularly to a kind of control method on adjusting SCV burner fuel quantity delivereds.This method step is as follows：First, LNG stream amount is detected by LNG stream gauge, and input to PLC, PLC is using LNG flow as input value X, natural gas adjusting valve opening value Y1 is calculated by formula Y1=aX+b, the LNG stream amount that formula Y1=aX+b is tested different load by field test corresponds to different natural gas adjusting valve opening values, the discrete points data of formation, these discrete points datas are connected into curve, the linear formula Y1=aX+b closest to the curve is found to get by calculating.The present invention, which realizes, makes SCV burners quickly search out optimal output point according to the change of LNG loads, ensures that NG temperature does not change, and makes SCV stabilizations, safe and reliable operation.
Description
Technical field：
It is more particularly to a kind of on regulation SCV burner fuels supply the present invention relates to SCV burner control technology fields
The control method of amount.
Background technology：
SCV is by the visual plant of LNG gasification, and its main function is to discharge heat and by heat by the natural gas that burns
LNG is conducted to, by the LNG gasification of liquid into NG.SCV burner outputs size has direct pass with combustion of natural gas amount as can be seen here
System.At present, the NG temperature after SCV burner outputs size Main Basiss detection LNG gasification is adjusted.When NG temperature is low
When, increase natural gas quantity delivered, increase burner output；When NG temperature is high, natural gas quantity delivered is reduced, burner is reduced and goes out
Power.But change of the change of NG temperature for LNG loads has certain hysteresis quality, this results in burner output change phase
There is certain hysteresis in the change for LNG loads, and need prolonged adjustment to meet wanting for LNG load variations
Ask.
The content of the invention：
The technical problem to be solved in the present invention is to provide a kind of controlling party on adjusting SCV burner fuel quantity delivereds
Method, the method achieve makes SCV burners quickly search out optimal output point according to the change of LNG loads, ensures NG temperature
Do not change, make SCV stabilizations, safe and reliable operation.Existing SCV burner outputs change is overcome relative to LNG loads
Change hysteresis be present, and need prolonged adjustment could meet LNG load variations requirement deficiency.
The technical solution used in the present invention is：A kind of control method on adjusting SCV burner fuel quantity delivereds, should
Method and step is as follows：
First, LNG stream amount is detected by LNG stream gauge, and inputs to PLC, PLC is using LNG flow as input value X, warp
Cross formula Y1=aX+b and calculate natural gas adjusting valve opening value Y1, formula Y1=aX+b tests different load by field test
LNG stream amount correspond to different natural gas adjusting valve opening values, the discrete points data of formation, these discrete points datas are connected into
Curve, the linear formula Y1=aX+b closest to the curve is found to get by calculating, so any one LNG stream value X
The natural gas adjusting valve opening value Y1 corresponding to it can be calculated；
2nd, the NG temperature values of reality are inputed to by PLC by NG temperature transmitters, through being set in the PID arithmetic device in PLC
Good program and formula draw natural gas adjusting valve opening value Y2 after calculating, now the final opening value Y=of natural gas adjusting valve
Y1+Y2；
3rd, PLC real-time receptions are from LNG stream gauge, the data of NG temperature transmitters and signal, according to above-mentioned steps one,
The program and formula set in two, calculates the final opening value Y of natural gas adjusting valve, and is delivered to natural gas adjusting valve
Control the aperture of natural gas adjusting valve.
The beneficial effects of the invention are as follows：The present invention makes SCV burners quickly be searched out most preferably according to the change of LNG loads
Go out force, ensure that NG temperature does not change, make SCV stabilizations, safe and reliable operation.
Brief description of the drawings：
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the schematic diagram of the present invention.
Embodiment：
As shown in figure 1, a kind of control method on adjusting SCV burner fuel quantity delivereds,：This method step is as follows：
First, LNG stream amount is detected by LNG stream gauge 1, and inputs to PLC2, PLC2 using LNG flow as input value X,
Natural gas adjusting valve 3 opening value Y1, formula Y1=aX+b are calculated by formula Y1=aX+b, and difference is tested by field test
The LNG stream amount of load corresponds to the different opening values of natural gas adjusting valve 3, the discrete points data of formation, by these discrete points datas
Curve is connected into, finds the linear formula Y1=aX+b closest to the curve by calculating to get, so any one LNG stream
Value X can calculate the opening value Y1 of natural gas adjusting valve 3 corresponding to it；
2nd, the NG temperature values of reality are inputed to by PLC2 by NG temperature transmitters 4, through in the PID arithmetic device in PLC2
The program and formula set draws the opening value Y2 of natural gas adjusting valve 3 after calculating, now the final aperture of natural gas adjusting valve 3
Value Y=Y1+Y2；
3rd, PLC2 real-time receptions are from LNG stream gauge 1, the data of NG temperature transmitters 4 and signal, according to above-mentioned steps
First, the program and formula set in two, calculates the final opening value Y of natural gas adjusting valve 3, and is delivered to natural gas regulation
Valve 3 controls the aperture of natural gas adjusting valve 3.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (1)
- A kind of 1. control method on adjusting SCV burner fuel quantity delivereds, it is characterised in that：This method step is as follows：First, LNG stream amount is detected by LNG stream gauge (1), and inputs to PLC (2), PLC (2) is using LNG flow as input value X, natural gas adjusting valve (3) opening value Y1 is calculated by formula Y1=aX+b, formula Y1=aX+b is tested by field test The LNG stream amount of different load corresponds to different natural gas adjusting valves (3) opening value, and the discrete points data of formation is discrete by these Point data connects into curve, and the linear formula Y1=aX+b closest to the curve is found to get by calculating, and so any one Individual LNG stream value X can calculate natural gas adjusting valve (3) opening value Y1 corresponding to it；2nd, the NG temperature values of reality are inputed to by PLC (2) by NG temperature transmitters (4), through the PID arithmetic device in PLC (2) In the program that sets and formula calculate after draw natural gas adjusting valve (3) opening value Y2, now natural gas adjusting valve (3) is most Whole opening value Y=Y1+Y2；3rd, PLC (2) real-time reception is from LNG stream gauge (1), the data and signal of NG temperature transmitters (4), according to above-mentioned step The program and formula set in rapid one, two, calculates the final opening value Y of natural gas adjusting valve (3), and is delivered to natural gas Regulating valve (3) controls the aperture of natural gas adjusting valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227340.7A CN105928003B (en) | 2016-04-13 | 2016-04-13 | A kind of control method on adjusting SCV burner fuel quantity delivereds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227340.7A CN105928003B (en) | 2016-04-13 | 2016-04-13 | A kind of control method on adjusting SCV burner fuel quantity delivereds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105928003A CN105928003A (en) | 2016-09-07 |
| CN105928003B true CN105928003B (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610227340.7A Active CN105928003B (en) | 2016-04-13 | 2016-04-13 | A kind of control method on adjusting SCV burner fuel quantity delivereds |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102430590B1 (en) * | 2020-12-07 | 2022-08-05 | 주식회사 한국가스기술공사 | Apparatus and method for visualizing operating procedure of submarine combustion vaporizer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8356487B2 (en) * | 2007-09-07 | 2013-01-22 | SPX Cooling Technologies | Control system and method for vaporizer with heating tower |
| US8783041B2 (en) * | 2010-06-09 | 2014-07-22 | Chevron U.S.A. Inc. | LNG transport vessel and method for storing and managing excess boil off gas thereon |
| CN202082608U (en) * | 2011-06-20 | 2011-12-21 | 中国寰球工程公司 | Vaporizer system and control system of LNG (Liquefied Natural Gas) |
| CA2844904C (en) * | 2013-03-15 | 2018-06-05 | Bpc Acquisition Company | Lng dispenser |
| CN103629693B (en) * | 2013-12-02 | 2016-03-30 | 北京市燃气集团有限责任公司 | The control system of LNG immersion combustion gasifier and control method |
| CN203927922U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海石油装备制造有限公司 | A kind of control system of SCV burner |
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2016
- 2016-04-13 CN CN201610227340.7A patent/CN105928003B/en active Active
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| CN105928003A (en) | 2016-09-07 |
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Effective date of registration: 20201010 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Address before: 300457, Binhai District, Tanggu Tianjin Binhai New Service Outsourcing Industry Park, building 3 Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. |
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