CN205299081U - Recovery system of gas gathering station unloading natural gas - Google Patents
Recovery system of gas gathering station unloading natural gas Download PDFInfo
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- CN205299081U CN205299081U CN201521052952.4U CN201521052952U CN205299081U CN 205299081 U CN205299081 U CN 205299081U CN 201521052952 U CN201521052952 U CN 201521052952U CN 205299081 U CN205299081 U CN 205299081U
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Abstract
The utility model relates to a recovery system of gas gathering station unloading natural gas, its characterized in that: it includes a knockout drum, a natural atmospheric pressure contract machine, a liquid case and one be used for the torch that ignites the natural gas, the gas outlet of knockout drum is through the entry linkage of a pipeline with the natural gas compressor, and the gas outlet of natural gas compressor is through a pipeline connection gathering pipeline, and the liquid outlet of knockout drum and the leakage fluid dram of natural gas compressor pass through a pipeline respectively to be connected with the liquid case, is connected through a pipeline and torch on lieing in the pipeline between knockout drum and the natural gas compressor. Set up a level sensor, a pressure sensor and an electrical ball valve on lieing in the pipeline between knockout drum and the natural gas compressor, the electrical ball valve setting is in the position that is close to the natural gas compressor entry, and the pipeline setting of connecting the torch just is provided with another electrical ball valve at the entry end that is close to the electrical ball valve, and level sensor, pressure sensor and two electrical ball valves are connected with automatically controlled cabinet electricity respectively.
Description
Technical field
This utility model relates to the recovery system of a kind of gas gathering station emptying natural gas, belongs to gas gathering and transportation technical field.
Background technology
General natural gas surface gathering system is divided into three grades, i.e. natural gas well field device, gas gathering station and purification plant. In actual production runs, the reasons such as moisture are contained due to natural gas, cause that hydrops or hydrate can irregularly occur in the gas pipeline by natural gas well site to gas gathering station, line clogging can be caused time serious, cause gas pipeline obstructed, impact is normal to be produced, it is therefore desirable to carry out natural gas vent in import department of gas gathering station.
During emptying, operator switch out the gas path pipe valve that enters the station of existing water blocking in gas gathering station, and the torch directed it towards outside gas gathering station is lighted. Hydrops in pipeline or hydrate and natural gas by gas gathering station outside knockout drum carry out gas-liquid separation, hydrate or hydrops and be automatically deposited in below separation tank body by gravity, natural gas lights emptying by guiding torch above knockout drum into. After hydrops empties, operator's switching station inner valve, return to normal production. This mode of operation advantage is simple to operate, safely controllable, and its shortcoming is that to light the amount of natural gas of emptying more, there are about a few all places every day, has not only wasted the energy but also contaminated environment. If being dried dehydration at gas well mouth or adding hydrate inhibitor, set of device cost, about 10��200,000, does not also include medicament, artificial and vehicular traffic cost. And interpolation hydrate inhibitor can increase purified treatment cost and the difficulty of later stage natural gas.
CN201020164819U discloses emptied natural gas injection recovery device for gas gathering station. In the apparatus, natural gas recovery is carried out mainly by spraying technique. Advantage is that scheme cost is low, and not needing extra power, shortcoming is that blowdown pressure is limited, it is impossible to eliminates hydrops or hydrate, fundamentally can not meet natural gas vent demand. And the natural gas moisture content height reclaimed, it is impossible to introduce gathering line, in addition it is also necessary to process in gas gathering station, strengthen energy consumption in gas gathering station.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide recovery system and the technique thereof of a kind of gas gathering station emptying natural gas that can carry out emptying natural gas recovery and elimination hydrops and hydrate.
For achieving the above object, this utility model takes techniques below scheme: the recovery system of a kind of gas gathering station emptying natural gas, it is characterised in that: it includes a knockout drum, a natural gas compressor, a liquid case and a torch for being ignited by natural gas; The gas outlet of described knockout drum is connected with the entrance of described natural gas compressor by a pipeline, the gas outlet of described natural gas compressor connects one for natural gas is delivered to the gathering line of purification plant by a pipeline, the liquid outlet of described knockout drum and the leakage fluid dram of described natural gas compressor are connected with described liquid case respectively through a pipeline, are connected with described torch by a pipeline on the described pipeline between described knockout drum with described natural gas compressor.
Described pipeline between described knockout drum and described natural gas compressor is provided with a liquid level sensor, one pressure transducer and an electrical ball valve, described electrical ball valve is positioned close to the position of described natural gas compressor entrance, the described pipeline connecting described torch is positioned close to the arrival end of described electrical ball valve and is provided with another electrical ball valve, described liquid level sensor, described in described pressure transducer and two, electrical ball valve electrically connects with an electrical control cubicles respectively, a controller it is provided with in described electrical control cubicles, described electrical control cubicles electrical connection one is arranged on the Control Room within gas gathering station.
Being provided with a gate valve and a check valve on the described pipeline between described natural gas compressor and described gathering line, described check valve is positioned close to the position of described gathering line.
Described natural gas compressor, described liquid level sensor, described pressure transducer, electrical ball valve and described electrical control cubicles respectively anti-explosion product described in two.
Described natural gas compressor is three grades of natural gas compressors.
This utility model is owing to taking above technical scheme, it has the advantage that 1, this utility model is provided with a knockout drum, the gas outlet of knockout drum is connected with natural gas compressor by a pipeline, the liquid outlet of knockout drum is connected with liquid case by pipeline, for collecting the hydrops or hydrate flowed out from knockout drum, pipeline between knockout drum with natural gas compressor is connected for the torch ignited by natural gas respectively through a pipeline and one, this utility model disclosure satisfy that the demand of natural gas vent, saving the energy, economy and the feature of environmental protection are good. 2, this utility model is provided with a liquid level sensor, a pressure transducer and an electrical ball valve on the pipeline between knockout drum and natural gas compressor, the pipeline connecting torch is provided with another electrical ball valve, and liquid level sensor, pressure transducer and two electrical ball valves electrically connect with an electrical control cubicles respectively, electrical control cubicles electrical connection one is arranged on the Control Room within gas gathering station, can remotely monitoring whole recovery system by Control Room, this utility model simple in construction, easy to use, cost performance is high. 3, this utility model natural gas compressor, liquid level sensor, pressure transducer, two electrical ball valves and electrical control cubicles are anti-explosion product, it is possible to ensure the safety of personnel and equipment, and this utility model system automation degree is high, and unmanned is safe and reliable. 4, the gas compression progression of this utility model natural gas compressor is three grades, gas can carrying out three stage compression, and third level pressure can be adjusted according to outer defeated pressure, the gas liquid content after compression is little, disclosure satisfy that outer defeated requirement, it is possible to be fed directly to gas gathering station external transport pipeline. 5, this utility model check valve is positioned close to the position of gathering line, it is possible to prevent gas backstreaming in gathering line to natural gas compressor.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present utility model
Detailed description of the invention
As it is shown in figure 1, the utility model proposes the recovery system of a kind of gas gathering station emptying natural gas, it includes knockout drum 1, natural gas compressor 2, liquid case 3 and the torch 4 for being ignited by natural gas. The gas outlet of knockout drum 1 is connected with the entrance of natural gas compressor 2 by a pipeline 5, and the gas outlet of natural gas compressor 2 connects one for natural gas is delivered to the gathering line 6 of purification plant by a pipeline 5. The liquid outlet of knockout drum 1 is connected with liquid case 3 by a pipeline 5, for collecting the hydrops or hydrate flowed out from knockout drum 1. The leakage fluid dram of natural gas compressor 2 is connected with liquid case 3 by a pipeline 5. Pipeline 5 between knockout drum 1 with natural gas compressor 2 is connected with torch 4 by another pipeline 5.
In above-described embodiment, the pipeline 5 between knockout drum 1 and natural gas compressor 2 is provided with liquid level sensor 7, pressure transducer 8 and an electrical ball valve 9. Wherein, electrical ball valve 9 is positioned close to the position of natural gas compressor 2 entrance. Another pipeline 5 connecting torch 4 is positioned close to the arrival end of electrical ball valve 9 and is provided with another electrical ball valve 10. Liquid level sensor 7, pressure transducer 8 and two electrical ball valves 9,10 electrically connect with an electrical control cubicles 11 respectively, and electrical control cubicles 11 electrically connects one and is arranged on Control Room 12 within gas gathering station, can remotely monitor whole recovery system by Control Room 12. Wherein, a controller (not shown) it is provided with in electrical control cubicles 11. When pressure transducer 8 detects the pressure of gas more than 0.4 MPa, under the effect of controller, electrical ball valve 10 automatically turns on, and unnecessary natural gas carries out, by torch 4, discharge of igniting; When liquid level sensor 7 has detected liquid, electrical ball valve 10 automatically turns on, and this liquid is discharged by connecting the pipeline 5 of torch 4.
In above-described embodiment, the pipeline 5 between natural gas compressor 2 and gathering line 6 is provided with gate valve 13 and a check valve 14. Wherein, check valve 14 is positioned close to the position of gathering line 6, it is possible to prevent gas backstreaming in gathering line 6 to natural gas compressor 2.
In above-described embodiment, natural gas compressor 2, liquid level sensor 7, pressure transducer 8, two electrical ball valve 9,10 and electrical control cubicles 11 respectively anti-explosion product.
In above-described embodiment, the gas compression progression of natural gas compressor 2 is three grades.
The various embodiments described above are merely to illustrate this utility model; wherein the structure of each parts, connected mode etc. all can be varied from; every equivalents carried out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (6)
1. the recovery system of a gas gathering station emptying natural gas, it is characterised in that: it includes a knockout drum, a natural gas compressor, a liquid case and a torch for being ignited by natural gas; The gas outlet of described knockout drum is connected with the entrance of described natural gas compressor by a pipeline, the gas outlet of described natural gas compressor connects one for natural gas is delivered to the gathering line of purification plant by a pipeline, the liquid outlet of described knockout drum and the leakage fluid dram of described natural gas compressor are connected with described liquid case respectively through a pipeline, are connected with described torch by a pipeline on the described pipeline between described knockout drum with described natural gas compressor.
2. the recovery system of a kind of gas gathering station as claimed in claim 1 emptying natural gas, it is characterized in that: on the described pipeline between described knockout drum and described natural gas compressor, be provided with a liquid level sensor, one pressure transducer and an electrical ball valve, described electrical ball valve is positioned close to the position of described natural gas compressor entrance, the described pipeline connecting described torch is positioned close to the arrival end of described electrical ball valve and is provided with another electrical ball valve, described liquid level sensor, described in described pressure transducer and two, electrical ball valve electrically connects with an electrical control cubicles respectively, a controller it is provided with in described electrical control cubicles, described electrical control cubicles electrical connection one is arranged on the Control Room within gas gathering station.
3. the recovery system of a kind of gas gathering station as claimed in claim 1 emptying natural gas, it is characterized in that: being provided with a gate valve and a check valve on the described pipeline between described natural gas compressor and described gathering line, described check valve is positioned close to the position of described gathering line.
4. the recovery system of a kind of gas gathering station as claimed in claim 2 emptying natural gas, it is characterized in that: being provided with a gate valve and a check valve on the described pipeline between described natural gas compressor and described gathering line, described check valve is positioned close to the position of described gathering line.
5. the recovery system of a kind of gas gathering station as claimed in claim 4 emptying natural gas, it is characterised in that: described natural gas compressor, described liquid level sensor, described pressure transducer, electrical ball valve and described electrical control cubicles respectively anti-explosion product described in two.
6. the recovery system of a kind of gas gathering station emptying natural gas as described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that: described natural gas compressor is three grades of natural gas compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052952.4U CN205299081U (en) | 2015-12-16 | 2015-12-16 | Recovery system of gas gathering station unloading natural gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052952.4U CN205299081U (en) | 2015-12-16 | 2015-12-16 | Recovery system of gas gathering station unloading natural gas |
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| CN205299081U true CN205299081U (en) | 2016-06-08 |
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| CN201521052952.4U Active CN205299081U (en) | 2015-12-16 | 2015-12-16 | Recovery system of gas gathering station unloading natural gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570685A (en) * | 2015-12-16 | 2016-05-11 | 中国石油大学(北京) | Recovery system and recovery process for vent natural gas of gas gathering station |
| CN106759779A (en) * | 2017-03-29 | 2017-05-31 | 中国石油天然气集团公司 | A kind of online blowdown apparatus and online method for discharging pollution for being applied to gas pipeline yard |
-
2015
- 2015-12-16 CN CN201521052952.4U patent/CN205299081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570685A (en) * | 2015-12-16 | 2016-05-11 | 中国石油大学(北京) | Recovery system and recovery process for vent natural gas of gas gathering station |
| CN106759779A (en) * | 2017-03-29 | 2017-05-31 | 中国石油天然气集团公司 | A kind of online blowdown apparatus and online method for discharging pollution for being applied to gas pipeline yard |
| CN106759779B (en) * | 2017-03-29 | 2019-01-29 | 中国石油天然气集团公司 | A kind of online blowdown apparatus and online method for discharging pollution applied to gas pipeline yard |
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