CN109666521A - Natual gas dehydrate unit - Google Patents
Natual gas dehydrate unit Download PDFInfo
- Publication number
- CN109666521A CN109666521A CN201910123824.0A CN201910123824A CN109666521A CN 109666521 A CN109666521 A CN 109666521A CN 201910123824 A CN201910123824 A CN 201910123824A CN 109666521 A CN109666521 A CN 109666521A
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- CN
- China
- Prior art keywords
- glycol
- gas
- heat exchanger
- outlet
- lean solution
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
Abstract
The invention discloses a kind of natual gas dehydrate units, including absorption tower, First Heat Exchanger, the second heat exchanger, reboiler, distillation column, burner and liquid separation tank.The lower end on absorption tower is equipped with moisture import, and upper end is exported equipped with dry gas, while the upper and lower ends on the absorption tower are respectively equipped with the import of glycol lean solution and glycol rich solution outlet, and distillation column is set on reboiler and the side of reboiler is equipped with burner.Distillation column upper end is equipped with steam outlet, and is connected by exhaust piping, and exhaust piping and dry gas outlet infall are equipped with the second heat exchanger, is equipped with liquid separation tank in the rear end of the second heat exchanger on exhaust piping, the other end of exhaust piping is in burner.The present invention carries out gas-liquid separation after can carrying out heat exchange cooling to exhaust gas and vapor by dry gas by the setting of the second heat exchanger, then introduces exhaust gas into burner and carries out calcination, reduces the calcination energy consumption of exhaust gas, reduces exhaust-gas treatment cost.
Description
Technical field
The present invention relates to natural gas dehydration technique fields, and in particular to a kind of natual gas dehydrate unit.
Background technique
During drilling natural gas, the natural gas flowed out in drilling well is usually that gas phase water is saturated, or even carries one
Quantitative liquid water.During using natural gas, moisture present in natural gas often will cause serious consequence, such as
Valve, pipeline and the equipment of moisture obstruction natural gas line.For this purpose, natural gas producer needs to implement dewatering work to natural gas.
The dewatering work of natural gas is usually realized by natual gas dehydrate unit.The dewatering of natual gas dehydrate unit application
Usually low temperature process, solvent absorption, solid absorption method, chemical reaction method and membrane separation process.Further include using more at present
Glycol absorption dewatering, glycol are recycled practical by principle of distillation, will finally be discharged with the exhaust gas of vapor by external calcination,
It is at high cost since the exhaust gas calcination energy consumption with a large amount of vapor is big, therefore be badly in need of improving.
Summary of the invention
In view of the above deficiencies, the object of the present invention is to provide a kind of natual gas dehydrate units, pass through the second heat exchanger
Setting can by dry gas to exhaust gas carry out heat exchange cooling after carry out gas-liquid separation, then introduce exhaust gas into burner carry out it is bright
It burns, reduces the calcination energy consumption of exhaust gas, reduce exhaust-gas treatment cost.
To achieve the above object, the technical solution provided by the present invention is:
A kind of natual gas dehydrate unit, including absorption tower, First Heat Exchanger, the second heat exchanger, reboiler, distillation column, combustion
Burner and liquid separation tank.The lower end on the absorption tower is equipped with moisture import, and upper end is exported equipped with dry gas, while the absorption tower is upper and lower
Both ends are respectively equipped with the import of glycol lean solution and glycol rich solution outlet, the distillation column be set on the reboiler and reboiler one
Side is equipped with the burner.It is respectively equipped with the outlet of glycol lean solution and the import of glycol rich solution on the reboiler and distillation column, and divides
Recycling is not connected to the glycol lean solution import and glycol rich solution outlet, the glycol lean solution import and dry gas outlet intersect
Place is equipped with the First Heat Exchanger, and the distillation column upper end is equipped with steam outlet, and is connected by exhaust piping, exhaust piping
It is equipped with the second heat exchanger with dry gas outlet infall, and is equipped with liquid separation tank, exhaust gas in the rear end of the second heat exchanger on exhaust piping
The other end of pipeline is set at the spray head of the burner.
Preferably, dry gas delivery pipe, the glycol lean solution on the reboiler and distillation column are connected in the dry gas outlet
Outlet and glycol rich solution import are connected to the glycol lean solution import and glycol rich solution outlet respectively by connecting pipe, described dry
The First Heat Exchanger is arranged in the crossover location of the connecting pipe of letter shoot and glycol lean solution entrance, is used for dry gas and glycol
Lean solution heat exchange, cooling glycol lean solution.
Preferably, the lower end on the absorption tower is equipped with sewage draining exit, and the lower end of the liquid separation tank is equipped with leakage fluid dram.
The invention has the benefit that
The present invention is changed exhaust gas by dry gas by having additional the second heat exchanger on the exhaust piping that connects on distillation column
Gas-liquid separation is carried out after heat drop temperature, burner is then introduced exhaust gas into and carries out calcination, and avoiding will directly steam with a large amount of water
The exhaust gas of gas carries out the disadvantage that calcination causes calcination energy consumption big, at high cost, therefore design using the above structure can be effective by the present invention
Exhaust gas and vapor are subjected to gas-liquid separation, calcination is directly carried out to exhaust gas, the calcination energy consumption of exhaust gas is reduced, reduces useless
Gas disposal cost.
With reference to the accompanying drawing with embodiment, the present invention is further described.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention.
It is each in figure that the reference numerals are as follows.
Absorption tower 1, moisture import 1a, dry gas outlet 1b, glycol lean solution import 1c, glycol rich solution outlet 1d, sewage draining exit 1e,
First Heat Exchanger 2, the second heat exchanger 3, reboiler 4, glycol lean solution outlet 4a distillation column 5, glycol rich solution import 5a, vapor go out
Mouth 5b, burner 6, liquid separation tank 7, leakage fluid dram 7a, exhaust piping 8, dry gas delivery pipe 9, connecting pipe 10.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is cooperated to be explained in detail.
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig. 1, a kind of natual gas dehydrate unit, including absorption tower 1, First Heat Exchanger 2, the second heat exchanger 3, reboiling
Device 4, distillation column 5, burner 6 and liquid separation tank 7.The lower end on the absorption tower 1 is equipped with moisture import 1a, and upper end is exported equipped with dry gas
1b, while the upper and lower ends on the absorption tower 1 are respectively equipped with glycol lean solution import 1c and glycol rich solution outlet 1d.In the present embodiment
In, for the glycol for absorbing the moisture contained in natural gas, defining moisture free glycol in the art is lean solution, is absorbed
Glycol after moisture is rich solution.The distillation column 5 is set on the reboiler 4 and the side of reboiler 4 is equipped with the burner
6, glycol lean solution outlet 4a and glycol rich solution import 5a is respectively equipped on the reboiler 4 and distillation column 5, and respectively with it is described sweet
Alcohol lean solution import 1c is connected to recycling with glycol rich solution outlet 1d.The glycol rich solution flows out laggard from glycol rich solution outlet 1d
Enter to the glycol rich solution import 5a on distillation column 5 and carry out distillation reaction, vapor is discharged with exhaust gas, the glycol lean solution after distillation
From the outlet of glycol lean solution, 4a is recycled to glycol lean solution import 1c and continues to be dehydrated to natural gas.The glycol lean solution import 1c and
Dry gas exports 1b infall and is equipped with the First Heat Exchanger 2, and 5 upper end of distillation column is equipped with steam outlet 5b, and by useless
Feed channel 8 connects, and exhaust piping 8 and dry gas outlet 1b infall are equipped with the second heat exchanger 3, and change on exhaust piping 8 in second
The rear end of hot device 3 is equipped with liquid separation tank 7, and the other end of exhaust piping 8 carries out exhaust gas at the spray head of the burner 6 bright
It burns.In the present embodiment, the First Heat Exchanger 2 cools down to glycol lean solution by dry gas, and the second heat exchanger 3 passes through dry gas pair
Exhaust gas carries out cooling heat exchange, makes vapor and exhaust gas gas-liquid separation, and carry out waste gas burning processing by burner 6, separation is useless
Calcination is carried out after a large amount of vapor in gas, greatly reduces calcination energy consumption and exhaust-gas treatment cost.
Specifically, being connected with dry gas delivery pipe 9, the glycol on the reboiler 4 and distillation column 5 on the dry gas outlet 1b
Lean solution outlet 4a and glycol rich solution import 5a is gone out with the glycol lean solution import 1c and glycol rich solution respectively by connecting pipe 10
Mouth 1d connection, and then glycol lean solution is made to realize regeneration, recycling by reboiler 4 and distillation column 5.The dry gas delivery pipe 9
The First Heat Exchanger 2 is set with the crossover location of the connecting pipe 10 at glycol lean solution import 1c, it is poor for dry gas and glycol
Liquid heat exchange, cooling glycol lean solution.
Further, the lower end on the absorption tower 1 is equipped with sewage draining exit 1e, and the lower end of the liquid separation tank 7 is equipped with leakage fluid dram 7a.
Working principle of the present invention: wet gas to be drained off enters from the moisture import 1a on absorption tower 1, while glycol lean solution
Enter from the glycol lean solution import 1c on absorption tower 1, the wet gas enters absorption tower 1 from bottom to up, glycol lean solution from up to
Lower to enter absorption tower 1, wet gas contact with glycol lean solution to natural gas realization dehydration, and dewatered dry gas is from absorption tower 1
Dry gas exports 1b and sends out through dry gas delivery pipe 9, while dry gas exchanges heat in First Heat Exchanger 2 and glycol lean solution, poor to glycol
Liquid cools down.Glycol rich solution after water suction, which flows out to enter through connecting pipe 10 from the glycol rich solution outlet 1d on absorption tower 1, to be distilled
After being distilled in column 5 by vapor and exhaust gas sent out from the outlet the steam outlet 5b of upper end discharge through exhaust piping 8 and
Heat exchange cooling is carried out by dry gas at second heat exchanger 3, then carries out gas-liquid separation in liquid separation tank 7, exhaust gas enters burner 6
Carry out calcination.After distilling in distillation column 5 to glycol rich solution simultaneously, glycol lean solution goes out from the glycol lean solution on reboiler 4
The glycol lean solution import 1c that mouth 4a escapes and enter absorption tower 1 is recycled.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way, using with its
The same or similar other devices, all fall in the scope of protection of the present invention.
Claims (3)
1. a kind of natual gas dehydrate unit, it is characterised in that: including absorption tower (1), First Heat Exchanger (2), the second heat exchanger
(3), the lower end of reboiler (4), distillation column (5), burner (6) and liquid separation tank (7), the absorption tower (1) is equipped with moisture import
(1a), upper end be equipped with dry gas outlet (1b), while the upper and lower ends on the absorption tower (1) be respectively equipped with glycol lean solution import (1c) and
Glycol rich solution outlet (1d), the distillation column (5) is set on the reboiler (4) and the side of reboiler (4) is equipped with the combustion
Burner (6) is respectively equipped with glycol lean solution outlet (4a) and glycol rich solution import (5a) on the reboiler (4) and distillation column (5),
And recycling, the glycol lean solution import are connected to the glycol lean solution import (1c) and glycol rich solution outlet (1d) respectively
(1c) and dry gas export (1b) infall and are equipped with the First Heat Exchanger (2), and distillation column (5) upper end is equipped with steam outlet
(5b), and connected by exhaust piping (8), exhaust piping (8) and dry gas outlet (1b) infall are equipped with the second heat exchanger (3),
And liquid separation tank (7) are equipped in the rear end of the second heat exchanger (3) on exhaust piping (8), the other end of exhaust piping (8) is set to described
At the spray head of burner (6).
2. natual gas dehydrate unit as described in claim 1, it is characterised in that: be connected with dry gas on the dry gas outlet (1b)
Delivery pipe (9), glycol lean solution outlet (4a) and glycol rich solution import (5a) on the reboiler (4) and distillation column (5) pass through
Connecting pipe (10) is connected to the glycol lean solution import (1c) and glycol rich solution outlet (1d) respectively, the dry gas delivery pipe
(9) First Heat Exchanger (2) is set with the crossover location of the connecting pipe (10) at glycol lean solution import (1c), is used for dry gas
With glycol lean solution heat exchange, cooling glycol lean solution.
3. natual gas dehydrate unit as described in claim 1, it is characterised in that: the lower end of the absorption tower (1) is equipped with blowdown
The lower end of mouth (1e), the liquid separation tank (7) is equipped with leakage fluid dram (7a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123824.0A CN109666521A (en) | 2019-02-19 | 2019-02-19 | Natual gas dehydrate unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123824.0A CN109666521A (en) | 2019-02-19 | 2019-02-19 | Natual gas dehydrate unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109666521A true CN109666521A (en) | 2019-04-23 |
Family
ID=66151794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910123824.0A Pending CN109666521A (en) | 2019-02-19 | 2019-02-19 | Natual gas dehydrate unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN109666521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704943A (en) * | 2020-06-23 | 2020-09-25 | 张岩松 | Dewatering device is used in natural gas processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900093A (en) * | 2012-12-31 | 2014-07-02 | 江苏和顺环保股份有限公司 | Incinerating and sludge drying process |
| CN105854531A (en) * | 2016-06-17 | 2016-08-17 | 中石化节能环保工程科技有限公司 | Closed triethylene glycol dehydration system |
| CN209522828U (en) * | 2019-02-19 | 2019-10-22 | 重庆华川油建装备制造(集团)有限公司 | Natual gas dehydrate unit |
-
2019
- 2019-02-19 CN CN201910123824.0A patent/CN109666521A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900093A (en) * | 2012-12-31 | 2014-07-02 | 江苏和顺环保股份有限公司 | Incinerating and sludge drying process |
| CN105854531A (en) * | 2016-06-17 | 2016-08-17 | 中石化节能环保工程科技有限公司 | Closed triethylene glycol dehydration system |
| CN209522828U (en) * | 2019-02-19 | 2019-10-22 | 重庆华川油建装备制造(集团)有限公司 | Natual gas dehydrate unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704943A (en) * | 2020-06-23 | 2020-09-25 | 张岩松 | Dewatering device is used in natural gas processing |
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| CB02 | Change of applicant information |
Address after: 400700 No. 3, Fengqi Road, caijiagang Town, Beibei District, Chongqing Applicant after: Chongqing Huachuan oilfield construction equipment manufacturing (Group) Co.,Ltd. Address before: 400700 No. 3, Fengqi Road, caijiagang Town, Beibei District, Chongqing Applicant before: CHONGQING HCYJ EQUIPMENT MANUFACTURING (Group) Co.,Ltd. |
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| CB02 | Change of applicant information |