CN201962265U - Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon - Google Patents
Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon Download PDFInfo
- Publication number
- CN201962265U CN201962265U CN 201120027285 CN201120027285U CN201962265U CN 201962265 U CN201962265 U CN 201962265U CN 201120027285 CN201120027285 CN 201120027285 CN 201120027285 U CN201120027285 U CN 201120027285U CN 201962265 U CN201962265 U CN 201962265U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- regeneration
- reflux
- outlet
- valve
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Separation By Low-Temperature Treatments (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A natural gas reflux device capable of reducing the outlet pressure of an expansion machine and improving the yield of light hydrocarbon consists of the traditional natural gas purifying and processing flow and the natural gas reflux device capable of reducing the outlet pressure of the expansion machine and improving the yield of the light hydrocarbon. The device consists of a reflux pipeline, a regeneration cooler, a regeneration separator, two regenerated gas dust filters, a stop valve and a bypass pneumatic thin film adjusting valve, wherein the regeneration cooler and the regeneration separator are connected in series through the reflux pipeline, the two regenerated gas dust filters are connected with the regeneration separator in parallel, the stop valve is arranged on the outlet reflux pipeline of the two regenerated gas filters, and the bypass pneumatic thin film adjusting valve is arranged close to the stop valve; an inlet of the regeneration cooler is connected with an inlet pipeline of an outlet valve of the regeneration separator which is arranged at a drying tower regenerated gas outlet in the traditional natural gas purifying and processing flow; and the outlet reflux pipeline of the two regenerated gas dust filters is connected with the inlet pipeline of a centrifugal compressor in the traditional natural gas purifying and processing flow. In the natural gas reflux device, the outlet pressure of the expansion machine is reduced and the yield of the light hydrocarbon is improved.
Description
Technical field
The utility model relates to the used a kind of reduction decompressor top hole pressure of natural gas conditioning treatment station and improves light hydrocarbon yield Sweet natural gas reflux.
Technical background
At present the used decompressor running status of Shengli Oil Field natural gas conditioning treatment station reduce year by year along with Sweet natural gas tolerance and the change of makings poor, off-design parameter, intake pressure by 3.9Mp drop to 2.7Mpa, top hole pressure drops to 1.25Mpa by 1.4Mpa, ratio of expansion drops to 2.16 by 2.7, rotating speed drops to 28000 rev/mins by 34000 rev/mins, and the reduction of ratio of expansion directly influences the yield of lighter hydrocarbons.Ratio of expansion=expander inlet pressure/decompressor top hole pressure, the efficient key that improves lighter hydrocarbons are that what use is made of existing installation and processing condition improve the intake pressure of decompressor or the top hole pressure of reduction decompressor.
Summary of the invention
The purpose of this utility model provides a kind of reduction decompressor top hole pressure and improves light hydrocarbon yield Sweet natural gas reflux, solves the problem that improves light hydrocarbon recovery rate.
The technical solution of the utility model realizes in the following manner:
The utility model is by raw natural gas purifying treatment flow process and reduce the decompressor top hole pressure and improve light hydrocarbon yield Sweet natural gas reflux and forms, it is characterized in that reducing that the decompressor top hole pressure improves regeneration water cooler that light hydrocarbon yield Sweet natural gas reflux is connected in series by reflux pipeline, by reflux pipeline, regeneration separators, two resurgent gases dust filter units being connected in parallel with regeneration separators and on two resurgent gases filter outlet reflux pipelines set stopping valve and by stopping valve set bypass gas diaphragm valve form; The inlet line of the regeneration separators outlet valve that the drying tower resurgent gases outlet in import and the former natural purifying treatment flow process of regeneration water cooler is set is connected, and the resurgent gases dust filter unit exports reflux pipeline and is connected with radial compressor inlet line in the raw natural gas purifying treatment flow process.
The utility model has been compared following advantage with old flow process:
1, old flow process improves ratio of expansion, improve light hydrocarbon yield and can only realize improving the purpose of ratio of expansion by the intake pressure that improves decompressor, because of outlet is to connect the defeated pressure height of gas external transport pipeline outward, pressure is set, only allow the elementary errors fluctuation, can not reduce significantly, the utility model has solved this problem.
2, resurgent gases inclusion-free after this device is handled, temperature, pressure approaches the temperature, pressure of oil field association Sweet natural gas, can not produce the natural gas conditioning treatment scheme and impact.
3, reduce the decompressor top hole pressure with the utility model, improve ratio of expansion and improve expansion intake pressure raising ratio of expansion safety saves energy than former flow process.
Description of drawings
The utility model and natural gas conditioning treatment scheme are connected and installed synoptic diagram
The number in the figure explanation
Pipeline:
G
1-associated gas pipeline G
2-device portal pipeline G
3-system cooling working procedure pipeline G
4-deethanizing column is to decompressor pipeline G
5-defeated outward dry gas pipeline G
6-resurgent gases is advanced process furnace pipeline G
7-resurgent gases goes out drying tower pipeline G
8-reflux pipeline G
9-ice chest is to liquid hydrocarbon separator G
10Dry gas G after the-re-heat
11-cold blowing tracheae line G
12-liquid hydrocarbon removes the liquefied gas tower
Equipment:
S
1-radial compressor S
2-gas holder S
3-horizontal separator S
4-resurgent gases process furnace A, B, C-drying tower S
5-resurgent gases water cooler S
6-resurgent gases separator S
7-resurgent gases water cooler (newly) S
8-resurgent gases separator (newly) S
9, S
10-resurgent gases dust filter unit S
11-decompressor S
12-liquid hydrocarbon separator S
13-ice chest S
14-deethanizing column S
15-vertical separator
Valve
F
1-centrifugal compressor inlet valve F
2-gas holder inlet valve F
3-high pressure associated gas inlet valve F
4-defeated outward dry gas pressure regulator valve F
5-regeneration air stream adjustable valve F
6-regeneration separators outlet valve F
7-resurgent gases is to new regeneration water cooler inlet valve F
8-pneumatic diaphragm control valve
Drying tower 18 big valve numberings:
A
11-dry tower A tower absorption inlet valve A
12-drying tower A tower absorption outlet valve A
21-drying tower A tower regeneration outlet valve A
22-drying tower A tower regeneration inlet valve A
31-drying tower A tower cold blowing inlet valve A
32-drying tower A tower cold blowing outlet valve B
11-drying tower B tower absorption inlet valve B
12-drying tower B tower absorption outlet valve B
21-drying tower B tower regeneration outlet valve B
22-drying tower B tower regeneration inlet valve B
31-drying tower B tower cold blowing inlet valve B
32-drying tower B tower cold blowing outlet valve C
11-drying tower C tower absorption inlet valve C
12-drying tower C tower absorption outlet valve C
21-drying tower C tower regeneration outlet valve C
22-drying tower C tower regeneration inlet valve C
31-drying tower C tower cold blowing inlet valve C
32-drying tower C tower cold blowing outlet valve
Embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description: the utility model improves light hydrocarbon yield Sweet natural gas reflux by raw natural gas purifying treatment flow process and reduction decompressor top hole pressure to be formed, and it is characterized in that reducing the decompressor top hole pressure and improves light hydrocarbon yield Sweet natural gas reflux by reflux pipeline G
8, the regeneration water cooler S that is connected in series by reflux pipeline
5, regeneration separators S
6, two resurgent gases dust filter unit S being connected in parallel with regeneration separators
9, S
10With at two resurgent gases filter outlet reflux pipeline G
8Going up set stopping valve reaches at the set bypass pneumatic diaphragm control valve F in stopping valve next door
8Form; The import of regeneration water cooler and the set regeneration separators S of the outlet of the drying tower resurgent gases in the former natural purifying treatment flow process
6The inlet line of outlet valve connects, and resurgent gases dust filter unit outlet reflux pipeline is connected with radial compressor inlet line in the raw natural gas purifying treatment flow process.
Real work of the present utility model is the part of raw natural gas purifying treatment works, increase for improving ratio of expansion and light hydrocarbon yield, the whole flow process of composition by:
Pipeline:
G
1-associated gas pipeline G
2-device portal pipeline G
3-system cooling working procedure pipeline G
4-deethanizing column is to decompressor pipeline G
5-defeated outward dry gas pipeline G
6-resurgent gases is advanced process furnace pipeline G
7-resurgent gases goes out drying tower pipeline G
8-reflux pipeline G
9-ice chest is to liquid hydrocarbon separator G
10Dry gas G after the-re-heat
11-cold blowing tracheae line G
12-liquid hydrocarbon removes the liquefied gas tower
Equipment:
S
1-radial compressor S
2-gas holder S
3-horizontal separator S
4-resurgent gases process furnace A, B, C-drying tower S
5-resurgent gases water cooler S
6-resurgent gases separator S
7-resurgent gases water cooler (newly) S
8-resurgent gases separator (newly) S
9, S
10-resurgent gases dust filter unit S
11-decompressor S
12-liquid hydrocarbon separator S
13-ice chest S
14-deethanizing column S
15-vertical separator
Valve
F
1-centrifugal compressor inlet valve F
2-gas holder inlet valve F
3-high pressure associated gas inlet valve F
4-defeated outward dry gas pressure regulator valve F
5-regeneration air stream adjustable valve F
6-regeneration separators outlet valve F
7-resurgent gases is to new regeneration water cooler inlet valve F
8-pneumatic diaphragm control valve
Drying tower 18 big valve numberings:
A
11-dry tower A tower absorption inlet valve A
12-drying tower A tower absorption outlet valve A
21-drying tower A tower regeneration outlet valve A
22-drying tower A tower regeneration inlet valve A
31-drying tower A tower cold blowing inlet valve A
32-drying tower A tower cold blowing outlet valve B
11-drying tower B tower absorption inlet valve B
12-drying tower B tower absorption outlet valve B
21-drying tower B tower regeneration outlet valve B
22-drying tower B tower regeneration inlet valve B
31-drying tower B tower cold blowing inlet valve B
32-drying tower B tower cold blowing outlet valve C
11-drying tower C tower absorption inlet valve C
12-drying tower C tower absorption outlet valve C
21-drying tower C tower regeneration outlet valve C
22-drying tower C tower regeneration inlet valve C
31-drying tower C tower cold blowing inlet valve C
32-drying tower C tower cold blowing outlet valve
Its working process and principle of work are as follows: associated gas is through G
1, pass through F
1And F
2Control enters S respectively
1And S
2, at S
2Buffering under guarantee to S
1Air feed is steady, through S
1The pressure of the associated gas of compression is brought up to 4Mpa by 0.1Mpa, and temperature is brought up to 40 ℃ by normal temperature, through G
2And F
3Control enters S
3Separate, again through S
15Separate, deviate from free-water, through A
11Or B
11Or C
11Enter A or B or C and carry out drying absorption and further dewater, through A
12Or B
12Or C
12Discharge, through G
3Enter S
13Condensation is through G
9Enter S
12Carry out liquid hydrocarbon and separate, enter S again
11Expand, then enter S
14Deethanizing has taken off gas behind the ethane through G
4Enter S
13Re-heat, temperature are elevated to normal temperature after G
10Enter S
11The pressurized end supercharging through G
5Outer defeated, through S
14The liquid hydrocarbon of deviating from is through G
12Enter following liquefaction steam flow journey.To drying tower A or B or the C after the associated gas absorption, need be G
5In the outer gas transmission throttling part of part through G
6And F
5Regulate control and enter S
4Heat 260 ℃ through G
6And A
22Or B
22Or C
22Enter A or B or C it is heated to the temperature that absorption needs, prepare for next step adsorbs associated gas; Or through G
11And C
31Or B
31Or A
31Enter C or B or A with outer gas transmission to C or B or A cooling, then from C
32Or B
32Or A
32Outflow is through G
11Enter G
5, drying tower A, B, C are carrying out the program of absorption, heating, cooling respectively in turn, guarantee drying tower efficient, creation point of the present utility model be with to the gas after A or B or the C heating through G
7Enter S
5S is advanced in cooling again
6Gas separated is directly used G
8From S
6Outlet draw, through S
7Cooling through S
8Separate, by the S of parallel connection
9And S
10Filter, through F
8Pressure regulation enters S
1Rather than enter through F
4Natural gas line after the pressure regulation has so just reduced the top hole pressure of decompressor, and because of the drying tower adsorption cycle, heating period and cooling switching time cooling period all are 8 hours, and from the external transport pipeline G in decompressor exit
5The flow of drawing resurgent gases is 2000m
3/ h, pressure are 1.25Mpa, get back to compression inlet and press 0.1Mpa very big to the top hole pressure influence of decompressor, obviously reduce the top hole pressure of decompressor, have just improved ratio of expansion and light hydrocarbon yield under the constant situation of expander inlet pressure.
Claims (1)
1. a reduction decompressor top hole pressure improves light hydrocarbon yield Sweet natural gas reflux, improve light hydrocarbon yield Sweet natural gas reflux by raw natural gas purifying treatment flow process and reduction decompressor top hole pressure and form, it is characterized in that reducing the decompressor top hole pressure and improve light hydrocarbon yield Sweet natural gas reflux by reflux pipeline, the regeneration water cooler that is connected in series by reflux pipeline, regeneration separators, two resurgent gases dust filter units that are connected in parallel with regeneration separators and on two resurgent gases filter outlet reflux pipelines set stopping valve and form at the set bypass pneumatic diaphragm control valve in stopping valve next door; The inlet line of the regeneration separators outlet valve that the drying tower resurgent gases outlet in import and the former natural purifying treatment flow process of regeneration water cooler is set is connected, and the resurgent gases dust filter unit exports reflux pipeline and is connected with radial compressor inlet line in the raw natural gas purifying treatment flow process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120027285 CN201962265U (en) | 2011-01-20 | 2011-01-20 | Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120027285 CN201962265U (en) | 2011-01-20 | 2011-01-20 | Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201962265U true CN201962265U (en) | 2011-09-07 |
Family
ID=44524799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120027285 Expired - Fee Related CN201962265U (en) | 2011-01-20 | 2011-01-20 | Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201962265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426893A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Natural gas dehydration device and method based on gas wave refrigeration technology |
-
2011
- 2011-01-20 CN CN 201120027285 patent/CN201962265U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426893A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Natural gas dehydration device and method based on gas wave refrigeration technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204973474U (en) | Dry gas purification system of can going here and there | |
| CN107345737B (en) | Double-tower double-condensation reflux expansion nitrogen making machine and nitrogen making method thereof | |
| CN103254955B (en) | Closed-type three-tower molecular sieve dehydration device | |
| CN103760850B (en) | A kind of remotely monitoring about nitrogen making machine and unwatched device and method | |
| CN201777881U (en) | Air separation system for oxygen production | |
| CN115069057A (en) | Method for recovering carbon dioxide by low-temperature rectification purification | |
| CN201962265U (en) | Natural gas reflux device capable of reducing outlet pressure of expansion machine and improving yield of light hydrocarbon | |
| CN102380361B (en) | Process utilizing product nitrogen gas to involve regeneration of molecular sieve absorbers | |
| CN112745974B (en) | Membrane separation method oilfield associated gas purification process and system based on adsorption dehydration pretreatment | |
| CN104791031B (en) | A kind of collecting carbonic anhydride regenerative system with Unit Steam Water system combination | |
| CN103525492A (en) | Natural gas processing and utilizing process | |
| CN108975291A (en) | Membrane separation nitrogen generator capable of controlling temperature | |
| CN113184850A (en) | Method and device for purifying high-purity carbon dioxide gas | |
| CN102127478B (en) | Method and device for increasing light hydrocarbon yield of natural gas purification treatment station | |
| CN105865145B (en) | A kind of coal gas gasification technique | |
| CN205011721U (en) | Smart dewatering system of synthesis of LNGLPGNGL product is retrieved to saturation wet oil associated gas | |
| CN116286117A (en) | Method and system for producing nitrogen-containing hydrogen-rich product by co-production of coal gas and LNG | |
| CN106367147A (en) | Natural gas dehydration system and dehydration method thereof | |
| CN215161044U (en) | High-purity carbon dioxide gas purification device | |
| CN109569182A (en) | A kind of temperature and pressure collaboration gas absorption system for separating and purifying | |
| CN214371298U (en) | Carbon dioxide gathering liquefaction recovery device | |
| RU88782U1 (en) | INSTALLATION OF CLEANING OF HELIUM CONCENTRATE FROM IMPURITIES | |
| CN208948854U (en) | A kind of membrane separation nitrogen making machine for capableing of temperature control | |
| CN103320192A (en) | Energy-saving regenerated gas heat exchanger and using method thereof | |
| CN104226078B (en) | A kind of temperature swing absorption unit for the protection of membrane separation plant is utilized to carry out the method for Temp .-changing adsorption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20120120 |