CN204237746U - A kind of Sweet natural gas well head takes off hydrocarbon device - Google Patents
A kind of Sweet natural gas well head takes off hydrocarbon device Download PDFInfo
- Publication number
- CN204237746U CN204237746U CN201420689159.4U CN201420689159U CN204237746U CN 204237746 U CN204237746 U CN 204237746U CN 201420689159 U CN201420689159 U CN 201420689159U CN 204237746 U CN204237746 U CN 204237746U
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- China
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- heavy hydrocarbon
- heat exchanger
- hydrocarbon
- interchanger
- natural gas
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Abstract
The utility model provides a kind of Sweet natural gas well head to take off hydrocarbon device, comprise gas inlet, First Heat Exchanger, expansion valve, gas outlet, second interchanger, freezing unit, heavy hydrocarbon exports, heavy hydrocarbon voltate regulator, heavy hydrocarbon withdrawing can and pipeline, described First Heat Exchanger, expansion valve, second interchanger is connected by pipeline successively with heavy hydrocarbon withdrawing can, the entrance of described First Heat Exchanger is connected with gas inlet, described First Heat Exchanger is provided with gas outlet, described second interchanger is provided with freezing unit, described heavy hydrocarbon withdrawing can is exported with heavy hydrocarbon by heavy hydrocarbon voltate regulator and is connected.Advantage of the present utility model and beneficial effect: this device energy conservation, simple to operate, safeguard less, running cost is low, it is little to take up an area, limit without operating mode, easy for installation.
Description
Technical field
The utility model relates to natural gas field technical field, particularly relates to a kind of Sweet natural gas well head and takes off hydrocarbon device.
Background technology
When the raw natural gas pressure exploiting out from gasser is higher (more than 10.0MP) and containing the component such as water and heavy hydrocarbon, affect the water dew point of Sweet natural gas, hydrocarbon dew point etc., need to carry out dewatering and could sell as marketable natural gas metering after a series of purifying treatment such as hydrocarbon recovery.The pressure regulation after well heater preheating of well head Sweet natural gas out carries out to lower pressure (being generally 1.0MP ~ 4.0MP) de-hydrocarbon process of dewatering again.The dehydration of Sweet natural gas generally adopts molecular sieve dehydration, and de-hydrocarbon major part adopts low temperature processing, Sweet natural gas is cooled to dew point (-25 ~-35 degree) below time, heavier hydro carbons is separated.Low ternperature separation process mainly expands by cryogen (R22 or R404A etc.), absorb heat, cool, compress recirculation, reduce the temperature of cooled material gradually, but wherein need to consume a part of electric energy, and well head high pressure gas out absorb large calorimetric when being adjusted to low pressure again, the problem such as need installation high-voltage water jacket furnace to heat to prevent and that cause ice too low due to temperature stifled, thus consume energy further.
Summary of the invention
The utility model needs the problem solved to be to provide a kind of Sweet natural gas well head and to take off hydrocarbon device, this device energy conservation, simple to operate, safeguard less, running cost is low, it is little to take up an area, limit without operating mode, easy for installation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of Sweet natural gas well head takes off hydrocarbon device, comprise gas inlet, First Heat Exchanger, expansion valve, gas outlet, second interchanger, freezing unit, heavy hydrocarbon exports, heavy hydrocarbon voltate regulator, heavy hydrocarbon withdrawing can and pipeline, described First Heat Exchanger, expansion valve, second interchanger is connected by pipeline successively with heavy hydrocarbon withdrawing can, the entrance of described First Heat Exchanger is connected with gas inlet, described First Heat Exchanger is provided with gas outlet, described second interchanger is provided with freezing unit, described heavy hydrocarbon withdrawing can is exported with heavy hydrocarbon by heavy hydrocarbon voltate regulator and is connected.
Further, described First Heat Exchanger is tube and shell heat exchanger.
Further, described second interchanger is plate-fin heat exchanger.
The advantage that the utility model has and positively effect are: apply this equipment, and the Sweet natural gas gathered out passes through expansion valve swell refrigeration, does not therefore need to heat Sweet natural gas at well head installation high-voltage water jacket furnace, saves a large amount of heat energy.Cold major part required in refrigeration link is provided so greatly reduce the operating frequency of refrigerator by himself, saves the energy.This equipment also have simple to operate, be convenient to safeguard, the low occupation of land of running cost is little, limit without operating mode, the advantage such as easy for installation.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram.
In figure:
1-gas inlet, 2-First Heat Exchanger, 3-expansion valve, 4-gas outlet, 5-second interchanger, the outlet of the freezing unit of 6-, 7-heavy hydrocarbon, 8-heavy hydrocarbon voltate regulator, 9-heavy hydrocarbon withdrawing can, 10-pipeline.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, the utility model provides a kind of Sweet natural gas well head to take off hydrocarbon device, comprise gas inlet 1, First Heat Exchanger 2, expansion valve 3, gas outlet 4, second interchanger 5, freezing unit 6, heavy hydrocarbon outlet 7, heavy hydrocarbon voltate regulator 8, heavy hydrocarbon withdrawing can 9 and pipeline 10, described First Heat Exchanger 2, expansion valve 3, second interchanger 5 is connected by pipeline 10 successively with heavy hydrocarbon withdrawing can 9, the entrance of described First Heat Exchanger 2 is connected with gas inlet 1, described First Heat Exchanger 2 is provided with gas outlet 4, described second interchanger 5 is provided with freezing unit 6, described heavy hydrocarbon withdrawing can 9 exports 7 by heavy hydrocarbon voltate regulator 8 with heavy hydrocarbon and is connected.
Described First Heat Exchanger 2 is tube and shell heat exchanger.
Described second interchanger 5 is plate-fin heat exchanger.
The working process of this example: the natural gas via cyclonic separator of well head and strainer remove water and the impurity of unbound state, then through dehydration sled, water dew point is taken off below-50.Pressure drop decline about 40bar after the laggard expansion valve 3 of natural gas via First Heat Exchanger 2 heat exchange of rough purification dehydration expands, temperature is made to reach-35 degree through the second interchanger 5 heat exchange again, now isolate heavy hydrocarbon, isolated heavy hydrocarbon enters heavy hydrocarbon withdrawing can 9, heavy hydrocarbon is adjusted to needs pressure through heavy hydrocarbon voltate regulator 8 is discharged to heavy hydrocarbon storage tank by heavy hydrocarbon outlet 7, natural gas via First Heat Exchanger 2 heat exchange of isolating heavy hydrocarbon discharges cold energy, heat absorption to close to normal temperature, for upstream device.When wellhead pressure is lower, is used alone expansion valve 3 when cannot reach requirement, starts freezing unit 6 and carry out supplementary cold; When wellhead pressure is lower, expansion valve 3 cannot work, and now all cold is provided by freezing unit 6.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (3)
1. a Sweet natural gas well head takes off hydrocarbon device, it is characterized in that: comprise gas inlet, First Heat Exchanger, expansion valve, gas outlet, second interchanger, freezing unit, heavy hydrocarbon exports, heavy hydrocarbon voltate regulator, heavy hydrocarbon withdrawing can and pipeline, described First Heat Exchanger, expansion valve, second interchanger is connected by pipeline successively with heavy hydrocarbon withdrawing can, the entrance of described First Heat Exchanger is connected with gas inlet, described First Heat Exchanger is provided with gas outlet, described second interchanger is provided with freezing unit, described heavy hydrocarbon withdrawing can is exported with heavy hydrocarbon by heavy hydrocarbon voltate regulator and is connected.
2. a kind of Sweet natural gas well head according to claim 1 takes off hydrocarbon device, it is characterized in that: described First Heat Exchanger is tube and shell heat exchanger.
3. a kind of Sweet natural gas well head according to claim 1 takes off hydrocarbon device, it is characterized in that: described second interchanger is plate-fin heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689159.4U CN204237746U (en) | 2014-11-17 | 2014-11-17 | A kind of Sweet natural gas well head takes off hydrocarbon device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689159.4U CN204237746U (en) | 2014-11-17 | 2014-11-17 | A kind of Sweet natural gas well head takes off hydrocarbon device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204237746U true CN204237746U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689159.4U Expired - Fee Related CN204237746U (en) | 2014-11-17 | 2014-11-17 | A kind of Sweet natural gas well head takes off hydrocarbon device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204237746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316054A (en) * | 2015-10-28 | 2016-02-10 | 贵惠莱新能源科技股份(上海)有限公司 | Natural gas freeze dehydration and dealkylation system |
-
2014
- 2014-11-17 CN CN201420689159.4U patent/CN204237746U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316054A (en) * | 2015-10-28 | 2016-02-10 | 贵惠莱新能源科技股份(上海)有限公司 | Natural gas freeze dehydration and dealkylation system |
| CN105316054B (en) * | 2015-10-28 | 2019-04-09 | 贵惠莱新能源科技股份(上海)有限公司 | A kind of natural gas lyophilization de-hydrocarbon system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20171117 |