CN100460747C - Natural gas unloading system pipe network improving and released cold quantity utilizing technology - Google Patents
Natural gas unloading system pipe network improving and released cold quantity utilizing technology Download PDFInfo
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- CN100460747C CN100460747C CNB2007100120982A CN200710012098A CN100460747C CN 100460747 C CN100460747 C CN 100460747C CN B2007100120982 A CNB2007100120982 A CN B2007100120982A CN 200710012098 A CN200710012098 A CN 200710012098A CN 100460747 C CN100460747 C CN 100460747C
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Abstract
The invention discloses a technology of natural gas removed car system ductwork improvement and cool energy delivery, which is characterized by the following: utilizing self pressure of natural gas pinch car gas; proceeding remove car direct filling; utilizing a great deal of cool energy delivery through high pressure to low pressure; cooling for natural gas compressed system; forming closed type cycle for the compressed machine; making the compressed machine cooled cycle system to operate with out soil, deposition and water treatment agent. This invention possesses distinctive effect, which can avoid clogging bug of device excess temperature and water pipe encrustment.
Description
Technical field:
The present invention relates to a kind of process engineering that is used for the defeated process of petroleum gas collection, belong to the oil-gas gathering and transportation technology type.
Background technique:
The petroleum gas collection is defeated to be that medium tache important in the whole process of production is processed and fully utilized to petroleum gas from exploiting to.At present, the technological process that natural gas unloading system adopts is, the gas that comes that rock gas is prized car carries out repeated compression by compressor bank after decompression, drying, because compressor bank all adopts the circulating water cooling, circulating water is by containing silt and water treatment agent in other unit's supply and the water, water quality is relatively poor, water temperature does not reach compressor cooling water standard up to 32 ℃, and overtemperature, water piping system fouling blocking phenomenon very easily appear in equipment, thereby failure frequency is higher, influences the normal operation of gathering system.In addition, continue to use traditional method of unloading, rock gas changes in the low pressure event releasable cold into by high pressure discharges into the atmosphere, also need unload air pipe on to power up heat exchanger heating for fear of the natural gas line bursting by freezing winter, not only cause the loss of a large amount of colds, also cause the fixedly increase of grid electricity fee cost simultaneously.
Summary of the invention:
The present invention relates to a kind of natural gas unloading system pipe network improving and released cold quantity that fault such as stops up after not needing compression process and can avoiding equipment overtemperature, water piping system fouling and utilize method.
Technological scheme of the present invention is as follows.This method is to come gas not need repeated compression technology to qualified, directly utilizing rock gas sled car to come self pressure of gas to unload directly fills, and make full use of a large amount of colds that rock gas sled pulls in when unloading and to discharge when transferring low pressure to by high pressure, the natural pressure compression system is cooled off, compressor forms closed cycle, make the compressor cooling recirculation system under the operating mode of no silt, sludge and water treatment agent and normal temperature, turn round, thereby avoid causing faults such as equipment overtemperature, water piping system fouling obstruction because of circulating water temperature height, water quality inferiority.The major measure of implementing this method is as follows:
1, increase laying and directly fill pipeline to the air storage well, pipeline specification is Φ 60 * 8mm, fills for the user coming the direct access of the qualified sledge car rock gas of gas to unload gas port;
2, install the enclosed sleeve pipe on the pipeline additional directly filling, pipeline specification Φ 219 * 4mm, the enclosed sleeve pipe is connected with air cooling device, the air cooling device medium is an antifreeze liquid, and antifreeze liquid absorbs and directly fills the cold of generation when unloading gas, and air cooling device is imported and exported and linked to each other with the compressor cooling water outlet and inlet simultaneously, form closed circulation system, make the compressor outlet gas temperature by original 60～80 ℃ reduce to≤40 ℃, the circulating water intake temperature of compressor cooling system reaches 27 ℃, 30 ℃ of outlet temperatures;
3, air cooling device and extraneous for the circulating pipe line parallel intersects and uses.
Method provided by the invention is easy to implement, effect is remarkable, utilize this method can make full use of the cold that high-pressure natural gas produces when unloading, reduce compressor bank cooling system operating maintenance cost, and can avoid equipment overtemperature and water lines fouling plugging fault, help the normal operation of gas gathering and transportation system.
Description of drawings:
Accompanying drawing is the process flow diagram of natural gas unloading system pipe network improving provided by the invention and released cold quantity.
Embodiment:
Accompanying drawing is embodiments of the invention.
As shown in the figure,
In the conventional process flow, it is low pressure natural gas that pipe natural gas comes gas, and after buffering was filtered, compressed machine compression entered the high pressure air that becomes 20～25MPa after the exsiccator drying, enters gas storage well at last and fills for the user; When quality of natural gas does not meet when directly filling, rock gas sledge car enters pressure-reducing station from unloading gas port, and high pressure air transfers low pressure gas to, and low pressure gas enters behind preposition exsiccator that compressor compresses becomes high pressure air after rearmounted exsiccator enters gas storage well fills for the user.
The improved technological process of the present invention is that rock gas sledge car unloads gas part and compressor bank and cooling water cyclic part: rock gas sledge car comes gas directly to enter directly to fill pipeline to unload, and a large amount of colds of generation are absorbed by the cold heat exchange sleeve and then absorbed by the refrigerant antifreeze liquid in the air cooling device.Close but water system of extraneous cooling, cooling system outlet circulating water temperature is 29 ℃ behind compressor operation, enter air cooling device, air cooling device is under cold and air-cooled dual cooling measure that refrigerant absorbs, temperature is reduced to compressor cooling water requirement temperature rapidly, thereby form the compressor closed cycle, realize the normal temperature running under the operating mode of no silt, sludge and water treatment agent of compressor cooling recirculation system.The concrete measure of pipe network improving is:
Increase by 7 mouths of unloading in original position of unloading, each mouthful two branch road of branch of unloading promptly can satisfy high straightening and fill and hang down the production needs of compressing into pressure-reducing station simultaneously.When rock gas sledge car comes the qualified C that promptly contains of makings amount
3, C
4Above hydro carbons composition more after a little while, the sledge car is unloaded mouthful and is directly filled the pipeline mouth and be connected; When sledge car makings contains C
3, C
4Above hydro carbons composition must carry out the gas disposal that comes of rock gas by former compression process more for a long time.
Directly filling on the pipeline, sealed in external enclosed diameter of phi 219 * 4mm cold heat exchange sleeve, the interior refrigerant that adds, three compressors dispose three air cooling devices respectively, carry out exchange heat through the cold heat exchange sleeve at this on air cooling device refrigerant inlet/outlet and the compressor cycle path.
Operating process: qualified after (1) sledge car arrives at a station as makings, get through and directly fill pipeline; (2) terminal valve of close compressor pipe network circulating water; (3) open the refrigerant terminal valve that the compressor air cooling device links to each other, open the terminal valve that links to each other with the cold heat exchange sleeve simultaneously; (4) start air cooling device and make it proper functioning; (5) start compressor and make it proper functioning, each position temperature of observation compressor; (6) compressor has high temperataure phenomena to take place, and then should strengthen and directly fill the rock gas gas flow, or open the blast-cold machine of air cooling device top, the rate of heat exchange of acceleration cycle refrigerant.
Claims (1)
1. natural gas unloading system pipe network improving and released cold quantity utilize method, it is characterized in that, this method is to come gas not need repeated compression technology to qualified, directly utilizing rock gas sled car to come self pressure of gas to unload directly fills, and make full use of a large amount of colds that rock gas sled pulls in when unloading and to discharge when transferring low pressure to by high pressure, the natural pressure compression system is cooled off, compressor forms closed cycle, make the compressor cooling recirculation system at no silt, turn round under the operating mode of sludge and water treatment agent and the normal temperature, thereby avoid because of the circulating water temperature height, water quality inferiority and cause the equipment overtemperature, faults such as water piping system fouling obstruction; The major measure of implementing this method is as follows:
(1), increase to lay and directly to fill pipeline to the air storage well, pipeline specification is Φ 60 * 8mm, fills for the user coming the qualified sledge car rock gas of gas directly to insert to unload gas port;
(2), install the enclosed sleeve pipe on the pipeline additional directly filling, pipeline specification Φ 219 * 4mm, the enclosed sleeve pipe is connected with air cooling device, the air cooling device medium is an antifreeze liquid, and antifreeze liquid absorbs and directly fills the cold of generation when unloading gas, and air cooling device is imported and exported and linked to each other with the compressor cooling water outlet and inlet simultaneously, form closed circulation system, make the compressor outlet gas temperature by original 60～80 ℃ reduce to≤40 ℃, the circulating water intake temperature of compressor cooling system reaches 27 ℃, 30 ℃ of outlet temperatures;
(3), the air cooling device and the external world supply the circulating pipe line parallel, the intersection use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100120982A CN100460747C (en) | 2007-07-13 | 2007-07-13 | Natural gas unloading system pipe network improving and released cold quantity utilizing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100120982A CN100460747C (en) | 2007-07-13 | 2007-07-13 | Natural gas unloading system pipe network improving and released cold quantity utilizing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101097041A CN101097041A (en) | 2008-01-02 |
| CN100460747C true CN100460747C (en) | 2009-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100120982A Expired - Fee Related CN100460747C (en) | 2007-07-13 | 2007-07-13 | Natural gas unloading system pipe network improving and released cold quantity utilizing technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN100460747C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679474B (en) * | 2011-03-14 | 2015-12-16 | 许伯彦 | A kind ofly reclaim the automotive air-conditioning system of cold energy of liquefied natural gas for cold air distribution |
| CN117006036B (en) * | 2023-09-05 | 2024-03-22 | 北京杰利阳能源设备制造有限公司 | Online detection system and monitoring method for circulating filtration of compressor unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135012A (en) * | 1996-02-01 | 1996-11-06 | 中国船舶工业总公司第七研究所第七一一研究所 | Method and apparatus for secondery obtg. gas from natural gas well |
| CN1304010A (en) * | 2000-01-12 | 2001-07-18 | 党为民 | Peak-regulating and gas-storing method for natural gas pipe network |
| RU2232343C1 (en) * | 2002-12-03 | 2004-07-10 | Кубанский государственный технологический университет | Power waste recovery plant of gas-transfer stations of main gas pipe-lines |
| US20060237195A1 (en) * | 2003-09-04 | 2006-10-26 | Glenn Wilde | Positive pressure gas jacket for a natural gas pipeline |
| US20070110596A1 (en) * | 2005-11-16 | 2007-05-17 | Weeber Konrad R | Methods and apparatus for transporting natural gas through a pipeline |
-
2007
- 2007-07-13 CN CNB2007100120982A patent/CN100460747C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135012A (en) * | 1996-02-01 | 1996-11-06 | 中国船舶工业总公司第七研究所第七一一研究所 | Method and apparatus for secondery obtg. gas from natural gas well |
| CN1304010A (en) * | 2000-01-12 | 2001-07-18 | 党为民 | Peak-regulating and gas-storing method for natural gas pipe network |
| RU2232343C1 (en) * | 2002-12-03 | 2004-07-10 | Кубанский государственный технологический университет | Power waste recovery plant of gas-transfer stations of main gas pipe-lines |
| US20060237195A1 (en) * | 2003-09-04 | 2006-10-26 | Glenn Wilde | Positive pressure gas jacket for a natural gas pipeline |
| US20070110596A1 (en) * | 2005-11-16 | 2007-05-17 | Weeber Konrad R | Methods and apparatus for transporting natural gas through a pipeline |
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| Publication number | Publication date |
|---|---|
| CN101097041A (en) | 2008-01-02 |
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Granted publication date: 20090211 Termination date: 20120713 |