CN201276549Y - Advanced dewatering equipment for natural gas - Google Patents
Advanced dewatering equipment for natural gas Download PDFInfo
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- CN201276549Y CN201276549Y CNU2008203023791U CN200820302379U CN201276549Y CN 201276549 Y CN201276549 Y CN 201276549Y CN U2008203023791 U CNU2008203023791 U CN U2008203023791U CN 200820302379 U CN200820302379 U CN 200820302379U CN 201276549 Y CN201276549 Y CN 201276549Y
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- adsorption tower
- natural gas
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- sweet natural
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Abstract
The utility model discloses a natural gas deep dehydration device which is used for deep dehydration of the natural gas by adopting the traditional adsorption method of normal temperature adsorption and high temperature regeneration. The dehydration device has the characteristic of energy saving. The dehydration device comprises a left adsorption tower and a right adsorption tower; the input ends of the left adsorption tower and the right adsorption tower are connected with an output end of an imported separator respectively by a valve; the input end of the imported separator is connected with an air inlet; the output ends of the left adsorption tower and the right adsorption tower are interconnected by a two-way drainage device, and the regeneration gas of the two-way drainage device is heated by a heat exchanger. The dehydration device reduces the additional energy consumption in heating the regeneration gas and achieves the effect of energy saving.
Description
Technical field
The utility model relates to a kind of employing normal temperature absorption, and the Sweet natural gas deep dehydrator of traditional absorption method of high temperature regeneration can carry out deep dehydration to Sweet natural gas.
Background technology
Traditional natual gas dehydrate unit as shown in Figure 1, it comprises left adsorption tower 21 and right adsorption tower 22, the input terminus of left side adsorption tower 21 and the input terminus of right adsorption tower 22 are connected with the output terminal of valve 13 with import separator 1 by valve 12 respectively, the input terminus of import separator 1 is connected with inlet mouth, the output terminal of left side adsorption tower 21 and the output terminal of right adsorption tower 22 interconnect by double take-off device 3, and the input terminus of left adsorption tower 21 and right adsorption tower 22 is connected with the input terminus of import separator 1 by valve and through water cooler 5, gas-liquid separator 6, compressor 7 respectively.
The effect of double take-off device 3 is that the Sweet natural gas of left adsorption tower 21 outputs is introduced right adsorption tower 22 or the Sweet natural gas of right adsorption tower 22 outputs is introduced left adsorption tower 21.This double take-off device 3 comprises valve 31 and the valve 33 that polyphone is provided with, valve 32 and valve 34 that polyphone is provided with, and the branch road 35 of the output terminal of the output terminal of connection valve 31 and valve 32; The input terminus of valve 31 all is communicated with the output terminal of left adsorption tower 21 with the input terminus of valve 32, and the output terminal of valve 33 all is communicated with the output terminal of right adsorption tower 22 with the output terminal of valve 34.The branch road 35 of this double take-off device 3 is provided with the output channel of well heater 4 and Sweet natural gas, and Sweet natural gas can enter left adsorption tower 21 or right adsorption tower 22 as resurgent gases after this output channel output or heater via 4 heating.
Above-mentioned natual gas dehydrate unit has adopted sorbent material high temperature absorption regeneration principle to come the sorbent material in left adsorption tower 21 and the right adsorption tower 22 is carried out deep dehydration regeneration, the moisture in the adsorption tower is deviate from totally, to reuse sorbent material.The operational process of this natual gas dehydrate unit is:
(1) in the spin cycle of Sweet natural gas, after wet inlet Sweet natural gas at first carries out oil removing, water through import separator 1, carry out the normal temperature adsorption dewatering of Sweet natural gas again to left adsorption tower 21 or right adsorption tower 22 through valve 12 or valve 13, Sweet natural gas after the dehydration is from the output channel and the post-filter 8 of left adsorption tower 21 or 22 outputs of right adsorption tower and the Sweet natural gas through double take-off device 3, and is defeated outward as product gas.
(2) in the regeneration period of sorbent material (dehydration with right adsorption tower 22 is regenerated as example), after wet inlet Sweet natural gas at first carries out oil removing, water through import separator 1, carry out the normal temperature adsorption dewatering of Sweet natural gas again to left adsorption tower 21 through valve 12, with the Sweet natural gas after the dehydration as resurgent gases from 21 outputs of left adsorption tower and successively the valve through double take-off device 3 32, well heater 4 be heated to certain temperature after valve 33 carries out high temperature dehydration and regenerates to introducing sorbent materials in 22 pairs of right adsorption towers 22 of right adsorption tower down, the moisture removal in the right adsorption tower 22 is clean.Liquid water the gas is separated by water cooler 5 coolings and by gas-liquid separator 6 from the resurgent gases of right adsorption tower 22 outputs, through the inlet end that enters import separator 1 after natural gas via overdraft machine 7 superchargings after separating dehydration cycle again.
Above-mentioned natual gas dehydrate unit is in order to carry out deep dehydration to Sweet natural gas, the requirement adsorbent reactivation is thorough, therefore need resurgent gases be heated to more than 250 ℃ by well heater 4, type of heating adopts the process furnace direct heating or adopts the indirect heating of thermal oil, need to consume lot of energy, be unfavorable for energy-conserving and environment-protective.
The utility model content
The technical problem that the utility model solved is: a kind of energy-conservation Sweet natural gas deep dehydrator is provided.
The technical scheme that solves the problems of the technologies described above is: the Sweet natural gas deep dehydrator, comprise left adsorption tower and right adsorption tower, the input terminus of left side adsorption tower and the input terminus of right adsorption tower are connected by the output terminal of valve with the import separator respectively, the input terminus of import separator is connected with inlet mouth, the output terminal of left side adsorption tower and the output terminal of right adsorption tower interconnect by the double take-off device, and by interchanger the resurgent gases in the double take-off device are heated.
Further be that the resurgent gases in stack gas that gas engine is discharged and the double take-off device is carried out heat exchange by interchanger.
Further be, the input terminus of described import separator is connected with inlet mouth by compressor, and the power of compressor is supplied with by gas engine.
Further be that described import separator is connected with compressor by water cooler.
The beneficial effects of the utility model are: Sweet natural gas deep dehydrator of the present utility model has been cancelled the well heater in the existing natual gas dehydrate unit, the substitute is by interchanger the resurgent gases in the double take-off device is heated, interchanger can directly utilize in the dewatering unit or other outer available thermal source of dewatering unit heats the resurgent gases in the double take-off device, thereby reduce resurgent gases is heated the additional energy that is consumed, reach energy-conservation effect.Test shows, Sweet natural gas deep dehydrator of the present utility model can be heated to resurgent gases more than 250 ℃ by interchanger, thereby make adsorbent reactivation thorough, the dehydration degree of depth reached more than-60 ℃ when the assurance Sweet natural gas carried out adsorption dewatering by the sorbent material after regenerating, and satisfied the deep dehydration requirement of Sweet natural gas fully.
Description of drawings
Fig. 1 is the structural representation of existing natual gas dehydrate unit.
Fig. 2 is the structural representation of Sweet natural gas deep dehydrator of the present utility model.
Be labeled as among the figure: import separator 1, valve 12, valve 13, left adsorption tower 21, right adsorption tower 22, double take-off device 3, valve 31, valve 32, valve 33, valve 34, branch road 35, interchanger 36, well heater 4, water cooler 5, gas-liquid separator 6, compressor 7, post-filter 8, gas engine 9, fuel gas inlet 91, gas outlet 92, sourdine 93, water cooler 100.
Direction shown in the arrow is the gas flow direction among Fig. 1, Fig. 2.
Embodiment
Be described further below in conjunction with accompanying drawing with to the utility model.
Sweet natural gas deep dehydrator as shown in Figure 2, comprise left adsorption tower 21 and right adsorption tower 22, the input terminus of left side adsorption tower 21 and the input terminus of right adsorption tower 22 are connected with the output terminal of valve 13 with import separator 1 by valve 12 respectively, the input terminus of import separator 1 is connected with inlet mouth, the output terminal of left side adsorption tower 21 and the output terminal of right adsorption tower 22 interconnect by double take-off device 3, and heat by the resurgent gases in 36 pairs of double take-off devices 3 of interchanger.
Wherein, the effect of double take-off device 3 is that the Sweet natural gas of left adsorption tower 21 outputs is introduced right adsorption tower 22 or the Sweet natural gas of right adsorption tower 22 outputs is introduced left adsorption tower 21.As Fig. 2, double take-off device 3 comprises valve 31 and the valve 33 that polyphone is provided with, valve 32 and valve 34 that polyphone is provided with, and the branch road 35 of the output terminal of the output terminal of connection valve 31 and valve 32; The input terminus of valve 31 all is communicated with the output terminal of left adsorption tower 21 with the input terminus of valve 32, and the output terminal of valve 33 all is communicated with the output terminal of right adsorption tower 22 with the output terminal of valve 34.The drainage direction of this double take-off device 3 is controlled jointly by valve 31, valve 32, valve 33 and valve 34: when the Sweet natural gas of left adsorption tower 21 outputs is introduced right adsorption tower 22, open valve 31 and valve 34, shut-off valve 32 and valve 33, gas enter the output terminal of right adsorption tower 22 through valve 31, branch road 35, valve 34 from the output terminal of left adsorption tower 21; When the Sweet natural gas of right adsorption tower 22 outputs was introduced left adsorption tower 21, shut-off valve 31 and valve 34 were opened valve 32 and valve 33, and gas enters the output terminal of left adsorption tower 21 through valve 33, branch road 35, valve 32 from the output terminal of right adsorption tower 22.The double take-off device 3 of this structure can guarantee that the flow direction of gas in branch road 35 is constant, so that in branch road 35 optional equipment is set.
Sweet natural gas deep dehydrator of the present utility model has been cancelled the well heater 4 in the existing natual gas dehydrate unit, the substitute is by the resurgent gases in 36 pairs of double take-off devices 3 of interchanger and heat, interchanger 36 can directly utilize in the dewatering unit or other outer available thermal source of dewatering unit heats the resurgent gases in the double take-off device 3, thereby reduce resurgent gases is heated the additional energy that is consumed, reach energy-conservation effect.Test shows, Sweet natural gas deep dehydrator of the present utility model can be heated to resurgent gases more than 250 ℃ by interchanger 36, thereby make adsorbent reactivation thorough, the dehydration degree of depth reached more than-60 ℃ when the assurance Sweet natural gas carried out adsorption dewatering by the sorbent material after regenerating, and satisfied the deep dehydration requirement of Sweet natural gas fully.
As Fig. 2, stack gas and the resurgent gases in the double take-off device 3 that gas engine 9 is discharged are carried out heat exchange by interchanger 36.Gas engine 9 can be used as the propulsion source of optional equipment in this Sweet natural gas deep dehydrator, also can be used as this Sweet natural gas deep dehydrator propulsion source of miscellaneous equipment in addition.The stack gas of utilizing gas engine 9 to be discharged heats by the resurgent gases in 36 pairs of double take-off devices 3 of interchanger, energy-conserving and environment-protective, and have good heats.
As Fig. 2, the input terminus of import separator 1 is connected with inlet mouth by compressor 7, and the power of compressor 7 is supplied with by gas engine 9.Like this, gas engine 9 is not only as the propulsion source of compressor 7 but also as the thermal source of interchanger 36, the operation of whole dewatering unit does not need additional other any heat, and is therefore more energy-conservation.
As Fig. 2, import separator 1 is connected with compressor 7 by water cooler 10.Like this, after 36 pairs of resurgent gaseses of interchanger heat for some time, the temperature out of adsorption tower is reached about 200 ℃, heating finishes, 7 superchargings of inlet natural gas via compressor, water cooler 10 coolings, enter in left adsorption tower 21 or the right adsorption tower 22 wherein one carry out adsorption dewatering, Sweet natural gas after the dehydration enters another adsorption tower as cold blowing gas through double take-off device 3 it is cooled off, and makes this adsorption tower be cooled to normal temperature, the high temperature regeneration end of processing of this adsorption tower.
The operational process of Sweet natural gas deep dehydrator of the present utility model is:
(1) in the spin cycle of Sweet natural gas, wet inlet Sweet natural gas is at first through compressor 7 superchargings, water cooler 10 coolings, after import separator 1 carries out oil removing, water, carry out the normal temperature adsorption dewatering of Sweet natural gas again to left adsorption tower 21 or right adsorption tower 22 through valve 12 or valve 13, Sweet natural gas after the dehydration is from the output channel and the post-filter 8 of left adsorption tower 21 or 22 outputs of right adsorption tower and the Sweet natural gas through double take-off device 3, and is defeated outward as product gas.
(2) in the regeneration period of sorbent material (dehydration with right adsorption tower 22 is regenerated as example), wet inlet Sweet natural gas at first passes through compressor 7 superchargings, water cooler 10 coolings, import separator 1 carries out oil removing, behind the water, carry out the normal temperature adsorption dewatering of Sweet natural gas again to left adsorption tower 21 through valve 12, export also successively valve through double take-off device 3 32 as resurgent gases from left adsorption tower 21 with the Sweet natural gas after the dehydration, interchanger 36 is heated to more than 250 ℃, carry out high temperature dehydration regeneration through valve 33 to going up the sorbent material of introducing in 22 pairs of right adsorption towers 22 of right adsorption tower down, the moisture in the right adsorption tower 22 is deviate from totally.Liquid water the gas is separated by water cooler 5 coolings and by gas-liquid separator 6 from the resurgent gases of right adsorption tower 22 outputs, through the inlet end that enters water cooler 10 after natural gas via overdraft machine 7 superchargings after separating dehydration cycle again; After 36 pairs of resurgent gaseses of interchanger heat for some time, the temperature out of right adsorption tower 22 is reached about 200 ℃, heating finishes, 7 superchargings of inlet natural gas via compressor, water cooler 10 cooling enters left adsorption tower 21 and carries out adsorption dewatering, and the Sweet natural gas after the dehydration enters right adsorption tower 22 as cold blowing gas through double take-off device 3 it is cooled off, make this adsorption tower be cooled to normal temperature, the high temperature regeneration end of processing of this adsorption tower.
Claims (4)
1. Sweet natural gas deep dehydrator, comprise left adsorption tower (21) and right adsorption tower (22), the input terminus of left side adsorption tower (21) and the input terminus of right adsorption tower (22) are connected with the output terminal of valve (13) with import separator (1) by valve (12) respectively, the input terminus of import separator (1) is connected with inlet mouth, the output terminal of left side adsorption tower (21) and the output terminal of right adsorption tower (22) interconnect by double take-off device (3), it is characterized in that: by interchanger (36) resurgent gases in the double take-off device (3) is heated.
2. Sweet natural gas deep dehydrator as claimed in claim 1 is characterized in that: stack gas that gas engine (9) is discharged and the resurgent gases in the double take-off device (3) are carried out heat exchange by interchanger (36).
3. Sweet natural gas deep dehydrator as claimed in claim 2 is characterized in that: the input terminus of described import separator (1) is connected with inlet mouth by compressor (7), and the power of compressor (7) is supplied with by gas engine (9).
4. Sweet natural gas deep dehydrator as claimed in claim 3 is characterized in that: described import separator (1) is connected with compressor (7) by water cooler (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203023791U CN201276549Y (en) | 2008-10-10 | 2008-10-10 | Advanced dewatering equipment for natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203023791U CN201276549Y (en) | 2008-10-10 | 2008-10-10 | Advanced dewatering equipment for natural gas |
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| Publication Number | Publication Date |
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| CN201276549Y true CN201276549Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008203023791U Expired - Fee Related CN201276549Y (en) | 2008-10-10 | 2008-10-10 | Advanced dewatering equipment for natural gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031168A (en) * | 2011-09-30 | 2013-04-10 | 新地能源工程技术有限公司 | Dehydration and de-heavy hydrocarbon technology for production of liquefied natural gas from methane-rich mixed gas |
| CN103071475A (en) * | 2013-01-09 | 2013-05-01 | 西南石油大学 | Natural gas absorbent regeneration and energy conservation technology and device |
-
2008
- 2008-10-10 CN CNU2008203023791U patent/CN201276549Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031168A (en) * | 2011-09-30 | 2013-04-10 | 新地能源工程技术有限公司 | Dehydration and de-heavy hydrocarbon technology for production of liquefied natural gas from methane-rich mixed gas |
| CN103031168B (en) * | 2011-09-30 | 2014-10-15 | 新地能源工程技术有限公司 | Dehydration and de-heavy hydrocarbon technology for production of liquefied natural gas from methane-rich mixed gas |
| CN103071475A (en) * | 2013-01-09 | 2013-05-01 | 西南石油大学 | Natural gas absorbent regeneration and energy conservation technology and device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20151010 |
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| EXPY | Termination of patent right or utility model |