CN201279431Y - Natural gas afterheat regeneration dehumidifier - Google Patents
Natural gas afterheat regeneration dehumidifier Download PDFInfo
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- CN201279431Y CN201279431Y CNU2008203023804U CN200820302380U CN201279431Y CN 201279431 Y CN201279431 Y CN 201279431Y CN U2008203023804 U CNU2008203023804 U CN U2008203023804U CN 200820302380 U CN200820302380 U CN 200820302380U CN 201279431 Y CN201279431 Y CN 201279431Y
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Abstract
The utility model discloses a natural gas residual heat regeneration and dehydration device which utilizes an adsorbent temperature-changing adsorption and regeneration principle to carry out dehydration and generation on adsorbent in an adsorption tower, with the characteristic of energy saving. The device comprises a left adsorption tower and a right adsorption tower, wherein, an input end of the left adsorption tower and an input end of the adsorption tower are respectively connected with an output end of an inlet separator through valves, and an input end of the inlet separator is connected with a gas inlet. An output end of the left adsorption tower and an output end of the adsorption tower are mutually connected through a dual-direction flow leading device, wherein, the input end of the inlet separator is connected with the gas inlet respectively through a compressor and a heat exchanger. The input end of the left adsorption tower and the input end of the right adsorption tower are respectively connected with an output valve, and the dual-direction flow leading device is connected with the output end of the inlet separator through valve. The natural gas residual heat regeneration and dehydration device eliminates the heater in the existing natural gas residual heat regeneration and dehydration device, so the device greatly reduces the device energy consumption and performs the functions of energy saving and environment protection.
Description
Technical field
The utility model relates to a kind of natural gas waste heat regeneration dewater unit, and this device has adopted adsorbent alternating temperature absorption regeneration principle to the regeneration of dewatering of the adsorbent in the adsorption tower.
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 of left side adsorption tower 21 and the input of right adsorption tower 22 are connected with the output of valve 13 with import separator 1 by valve 12 respectively, the input of import separator 1 is connected with air inlet, the output of left side adsorption tower 21 and the output of right adsorption tower 22 interconnect by double take-off device 3, and the input of left adsorption tower 21 and right adsorption tower 22 is connected with the input of import separator 1 by valve and through cooler 5, gas-liquid separator 6, compressor 7 respectively.
The effect of double take-off device 3 is that the natural gas of left adsorption tower 21 outputs is introduced right adsorption tower 22 or the 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 37 of the output of the output of connection valve 31 and valve 32; The input of valve 31 all is communicated with the output of left adsorption tower 21 with the input of valve 32, and the output of valve 33 all is communicated with the output of right adsorption tower 22 with the output of valve 34.The branch road 37 of this double take-off device 3 is provided with the output channel of heater 4 and natural gas, and natural gas can enter left adsorption tower 21 or right adsorption tower 22 after this output channel output or heater via 4 heating.
Above-mentioned natual gas dehydrate unit has adopted adsorbent alternating temperature absorption regeneration principle to come the regeneration of dewatering of the adsorbent in left adsorption tower 21 and the right adsorption tower 22, thereby prolongs the service life of adsorbent.The running of this natual gas dehydrate unit is:
(1) in the spin cycle of natural gas, after wet inlet natural gas at first carries out oil removing, water through import separator 1, carry out the adsorption dewatering of natural gas again to left adsorption tower 21 or right adsorption tower 22 through valve 12 or valve 13, 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 natural gas through double take-off device 3, and is defeated outward as product gas.
(2) in the regeneration period of adsorbent (dehydration with right adsorption tower 22 is regenerated as example), after wet inlet natural gas at first carries out oil removing, water through import separator 1, carry out the adsorption dewatering of natural gas again through valve 12 to left adsorption tower 21, with the natural gas after the dehydration as regeneration gas from 21 outputs of left adsorption tower and successively the valve through double take-off device 3 32, heater 4 be heated to uniform temperature after valve 33 to down and the regeneration of dewatering of the adsorbents in 22 pairs of right adsorption towers 22 of the right adsorption tower of introducing.Aqueous water the gas is separated by cooler 5 coolings and by gas-liquid separator 6 from the regeneration gas of right adsorption tower 22 outputs, through the arrival end that enters import separator 1 after natural gas via overcompression machine 7 superchargings after separating dehydration cycle again.
Above-mentioned natual gas dehydrate unit need be heated to regeneration gas about 250 ℃ by heater 4 in the regenerative process of carrying out adsorbent, and mode of heating is heating furnace heating or electrical heating, needs to consume lot of energy, is 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 natural gas waste heat regeneration dewater unit is provided.
The technical scheme that solves the problems of the technologies described above is: natural gas waste heat regeneration dewater unit, comprise left adsorption tower and right adsorption tower, the input of left side adsorption tower and the input of right adsorption tower are connected by the output of valve with the import separator respectively, the input of import separator is connected with air inlet, the output of left side adsorption tower and the output of right adsorption tower interconnect by the double take-off device, wherein, the input of import separator is connected with air inlet with heat exchanger by compressor successively, the input of left side adsorption tower and the input of right adsorption tower are connected with delivery valve respectively, and the double take-off device is connected by the output of valve with the import separator.
Further be that described heat exchanger polyphone is arranged on the regeneration gas conveyance conduit of double take-off device.
Further be that the input polyphone of described heat exchanger is provided with dust filter unit.
Further be that the input of described dust filter unit is connected by the output of valve with the import separator.
Further be that the output polyphone of described heat exchanger is provided with gas-liquid separator.
Further be that polyphone is provided with cooler between described gas-liquid separator and the heat exchanger.
Further be that the output of described gas-liquid separator is connected with right adsorption tower with left adsorption tower respectively by cooling system.
As the preferred version of technique scheme, described cooling system comprises cooling driers, and the input of cooling driers is connected with the output of gas-liquid separator by valve, and the output of cooling driers is connected with right adsorption tower with left adsorption tower with valve by valve respectively.
Further be that described cooling system gets output and is connected with the input of left adsorption tower and the input of right adsorption tower respectively; The output of left side adsorption tower and the output of right adsorption tower are connected delivery valve and delivery valve respectively.
The beneficial effects of the utility model are: natural gas waste heat regeneration dewater unit of the present utility model is in the regenerative process of carrying out adsorbent, wet inlet natural gas is compressed again machine supercharging after heat exchanger heats up at first, carry out oil removing through the import separator then, behind the water, directly enter left adsorption tower or the wherein dehydration regeneration of carrying out adsorbent of right adsorption tower as regeneration gas, the gas of output is introduced the adsorption dewatering that carries out natural gas in another adsorption tower again by the double take-off device, and the natural gas that reaches dew point is directly exported as finished product gas by delivery valve from the input of this adsorption tower; In the spin cycle of natural gas, wet inlet natural gas is compressed again machine supercharging after heat exchanger heats up at first, enter the double take-off device by valve then, introduce the adsorption dewatering that left adsorption tower or right adsorption tower carry out natural gas by the double take-off device, the natural gas after the dehydration is exported as finished product gas through delivery valve from the input of this adsorption tower.In sum, natural gas waste heat regeneration dewater unit of the present utility model has been cancelled the heater in the existing natual gas dehydrate unit, the substitute is the waste heat of utilization inlet natural gas and the inlet natural gas is carried out suitable heating by heat exchanger, and carry out again the gas of import separator output directly being introduced after the supercharging adsorption tower to the adsorbent regeneration of dewatering, thereby greatly reduce equipment energy consumption, play the effect of energy-conserving and environment-protective; Regeneration gas all is recycled to adsorption tower by the double take-off device and is carried out processed, realizes that the zero-emission of regeneration gas does not consume additional-energy, and is energy-efficient.Test shows, natural gas waste heat regeneration dewater unit of the present utility model is from the natural gas temperature without cooling of compressor output〉100 ℃, dew point can reach-10 ℃ during the output of product gas, meets the requirement of pipeline gas fully.
Description of drawings
Fig. 1 is the structural representation of existing natual gas dehydrate unit.
Fig. 2 is the structural representation of natural gas waste heat regeneration dewater unit of the present utility model.
Be labeled as among the figure: import separator 1, left adsorption tower 21, right adsorption tower 22, double take-off device 3, valve 31, valve 32, valve 33, valve 34, gas-liquid separator 35, cooler 36, branch road 37, heater 4, cooler 5, gas-liquid separator 6, compressor 7, post-filter 8, cooling system 9, valve 91, cooling driers 92, valve 93, valve 94, valve 10, valve 11, valve 12, valve 13, valve 14, valve 15, heat exchanger 16, dust filter unit 17.
Direction shown in the arrow is the gas flow direction among Fig. 1, Fig. 2.
The specific embodiment
Be described further below in conjunction with accompanying drawing with to the utility model.
Natural gas waste heat regeneration dewater unit as shown in Figure 2, comprise left adsorption tower 21 and right adsorption tower 22, the input of left side adsorption tower 21 and the input of right adsorption tower 22 are connected with the output of valve 13 with import separator 1 by valve 12 respectively, the input of import separator 1 is connected with air inlet, the output of left side adsorption tower 21 and the output of right adsorption tower 22 interconnect by double take-off device 3, the input of described import separator 1 is connected with air inlet with heat exchanger 16 by compressor 7 successively, the input of left side adsorption tower 21 and the input of right adsorption tower 22 are connected delivery valve 10 and delivery valve 11 respectively, and double take-off device 3 is connected with the output of import separator 1 by valve 16.
Wherein, the effect of double take-off device 3 is that the natural gas of left adsorption tower 21 outputs is introduced right adsorption tower 22 or the 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 37 of the output of the output of connection valve 31 and valve 32; The input of valve 31 all is communicated with the output of left adsorption tower 21 with the input of valve 32, and the output of valve 33 all is communicated with the output of right adsorption tower 22 with the output 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 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 of right adsorption tower 22 through valve 31, branch road 37, valve 34 from the output of left adsorption tower 21; When the 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 of left adsorption tower 21 through valve 33, branch road 37, valve 32 from the output 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 37 is constant, so that in branch road 37 optional equipment is set.
This natural gas waste heat regeneration dewater unit is in the regenerative process of carrying out adsorbent, wet inlet natural gas is compressed again machine 7 superchargings after heat exchanger 16 heats up at first, then after import separator 1 carries out oil removing, water, directly the wherein dehydration of carrying out adsorbent that enters in left adsorption tower 21 or the right adsorption tower 22 as regeneration gas is regenerated, the gas of output is introduced the adsorption dewatering that carries out natural gas in another adsorption tower again by double take-off device 3, and the natural gas that reaches dew point is directly exported as finished product gas by delivery valve from the input of this adsorption tower; In the spin cycle of natural gas, wet inlet natural gas is compressed again machine 7 superchargings after heat exchanger 16 heats up at first, enter double take-off device 3 by valve 16 again, introduce the adsorption dewatering that left adsorption towers 21 or right adsorption tower 22 carry out natural gas by double take-off device 3, the natural gas after the dehydration is exported as finished product gas through delivery valve from the input of this adsorption tower.Natural gas waste heat regeneration dewater unit of the present utility model has been cancelled the heater 4 in the existing natural gas waste heat regeneration dewater unit, the substitute is the waste heat of utilization inlet natural gas and carry out suitable heating by 16 pairs of inlets of heat exchanger natural gas, and carry out again the gas of import separator 1 output directly being introduced after the supercharging adsorption tower to the adsorbent regeneration of dewatering, thereby greatly reduce equipment energy consumption, play the effect of energy-conserving and environment-protective; Regeneration gas all is recycled to adsorption tower by double take-off device 3 and is carried out processed, realizes that the zero-emission of regeneration gas does not consume additional-energy, and is energy-efficient.The purpose that heat exchanger 16 is set is the natural gas temperature without cooling that guarantees from compressor output〉100 ℃, dew point can reach 10 ℃ when product gas was exported like this, met the requirement of pipeline gas fully.
As Fig. 2, heat exchanger 16 passes to the heat energy of inlet natural gas and can supply with by multiple channel, but for guaranteeing low energy consumption, heat exchanger 16 directly can be contacted and be arranged on the regeneration gas conveyance conduit of double take-off device 3, like this, in fact heat energy in the heat exchanger 16 come from the regeneration gas in the double take-off device 3, and do not consume additional-energy, energy-efficient.The input of described heat exchanger 16 is preferably contacted dust filter unit 17 is set, and so that wherein natural gas is filtered, prevents that heat exchanger 16 from stopping up.
As Fig. 2, the input of described dust filter unit 17 is connected with the output of import separator 1 by valve 16.Like this, in the spin cycle of natural gas, enter by valve 16 after wet inlet natural gas via compressor 7 superchargings and enter heat exchanger 16 again after dust filter unit 17 filters, finally introduce in left adsorption towers 21 or the right adsorption tower 22 and carry out the natural gas adsorption dewatering by double take-off device 3.
As Fig. 2, in order to improve the dehydrating effect of natural device, the output polyphone of described heat exchanger 16 is provided with gas-liquid separator 35.Gas-liquid separator 35 can remove the most of moisture of carrying in the natural gas, carries out adsorption dewatering thereby the regeneration gas of adsorption tower output is carried out introducing adsorption tower again after the pre-processed, improves the dehydrating effect of natural device, prolongs the service time of adsorbent.
As Fig. 2, polyphone is provided with cooler 36 between described gas-liquid separator 35 and the heat exchanger 16.Like this, in the spin cycle of natural gas, enter through dust filter unit 17, heat exchanger 16 again by valve 16 after wet inlet natural gas via compressor 7 superchargings and enter gas-liquid separator 35 after cooler 36 is lowered the temperature again and carry out pre-processed, and then introduce adsorption tower and carry out adsorption dewatering, improve the dehydrating effect of natural device.Cooler 36 can adopt air cooling or water cooler, in order to improve cooling effect, preferably adopts water cooler.
It should be noted that dust filter unit 17, heat exchanger 16, cooler 36 and gas-liquid separator 35 are connected on the branch road 37 of double take-off device 3 successively, the flow direction of gas on branch road 37 is constant all the time.
As Fig. 2, for the adsorption tower after regeneration is finished cools, the output of described gas-liquid separator 35 is connected with right adsorption tower 22 with left adsorption tower 21 respectively by cooling system 9.After 22 regeneration of left adsorption tower 21 or right adsorption tower finish, pass through valve 16 after wet inlet natural gas via compressor 7 superchargings again through dust filter unit 17, heat exchanger 16 enters and enters gas-liquid separator 35 after cooler 36 is lowered the temperature again and carry out pre-processed, be divided into two parts from the gas of gas-liquid separator 35 outputs, most natural gas is exported as finished product gas by delivery valve 10 or delivery valve 11 by wherein back of dewatering that valve 32 or valve 34 enter in left adsorption tower 21 or the right adsorption tower 22, and another seat that the fraction natural gas enters in left adsorption tower 21 or the right adsorption tower 22 after lowering the temperature by cooling system 9 cools off it, and finally from this adsorption tower output.
A kind of concrete structure as cooling system 9, this cooling system 9 comprises cooling driers 92, the input of cooling driers 92 is connected with the output of gas-liquid separator 6 by valve 91, and the output of cooling driers 92 is connected with right adsorption tower 22 with left adsorption tower 21 with valve 94 by valve 93 respectively.Cooling driers 92 can remove water for cooling to natural gas preferably.
Wherein, the output of described cooling system 9 preferably is connected with the input of left adsorption tower 21 and the input of right adsorption tower 22 respectively; And the output of the output of left adsorption tower 21 and right adsorption tower 22 is connected delivery valve 14 and delivery valve 15 respectively.Like this, natural gas enters the adsorption tower by the back input from left adsorption tower 21 or right adsorption tower 22 of cooling system 9 coolings it is cooled off, finally from delivery valve 14 or delivery valve 15 outputs.Certainly, the output of described cooling system 9 also can be connected with the output of left adsorption tower 21 and the output of right adsorption tower 22 respectively, and like this, natural gas is finally from delivery valve 10 or delivery valve 11 outputs.
Claims (9)
- [claim 1] natural gas waste heat regeneration dewater unit, comprise left adsorption tower (21) and right adsorption tower (22), the input of left side adsorption tower (21) and the input of right adsorption tower (22) are connected with the output of valve (13) with import separator (1) by valve (12) respectively, the input of import separator (1) is connected with air inlet, the output of left side adsorption tower (21) and the output of right adsorption tower (22) interconnect by double take-off device (3), it is characterized in that: the input of described import separator (1) is connected with air inlet with heat exchanger (16) by compressor (7) successively, the input of the input of described left adsorption tower (21) and right adsorption tower (22) is connected delivery valve (10) and delivery valve (11) respectively, and described double take-off device (3) is connected with the output of import separator (1) by valve (16).
- [claim 2] natural gas waste heat regeneration as claimed in claim 1 dewater unit, it is characterized in that: described heat exchanger (16) polyphone is arranged on the regeneration gas conveyance conduit of double take-off device (3).
- [claim 3] natural gas waste heat regeneration as claimed in claim 2 dewater unit is characterized in that: the input polyphone of described heat exchanger (16) is provided with dust filter unit (17).
- [claim 4] natural gas waste heat regeneration as claimed in claim 3 dewater unit, it is characterized in that: the input of described dust filter unit (17) is connected with the output of import separator (1) by valve (16).
- [claim 5] as claim 2,3 or 4 described natural gas waste heat regeneration dewater units, it is characterized in that: the output polyphone of described heat exchanger (16) is provided with gas-liquid separator (35).
- [claim 6] natural gas waste heat regeneration as claimed in claim 5 dewater unit, it is characterized in that: polyphone is provided with cooler (36) between described gas-liquid separator (35) and the heat exchanger (16).
- [claim 7] natural gas waste heat regeneration as claimed in claim 5 dewater unit, it is characterized in that: the output of described gas-liquid separator (35) is connected with right adsorption tower (22) with left adsorption tower (21) respectively by cooling system (9).
- [claim 8] natural gas waste heat regeneration as claimed in claim 7 dewater unit, it is characterized in that: described cooling system (9) comprises cooling driers (92), the input of cooling driers (92) is connected with the output of gas-liquid separator (6) by valve (91), and the output of cooling driers (92) is connected with right adsorption tower (22) with left adsorption tower (21) with valve (94) by valve (93) respectively.
- As claim 7 or 8 described natural gas waste heat regeneration dewater units, it is characterized in that: the output of described cooling system (9) is connected with the input of left adsorption tower (21) and the input of right adsorption tower (22) respectively [claim 9]; The output of left side adsorption tower (21) and the output of right adsorption tower (22) are connected delivery valve (14) and delivery valve (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203023804U CN201279431Y (en) | 2008-10-10 | 2008-10-10 | Natural gas afterheat regeneration dehumidifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203023804U CN201279431Y (en) | 2008-10-10 | 2008-10-10 | Natural gas afterheat regeneration dehumidifier |
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| CN201279431Y true CN201279431Y (en) | 2009-07-29 |
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| CNU2008203023804U Expired - Fee Related CN201279431Y (en) | 2008-10-10 | 2008-10-10 | Natural gas afterheat regeneration dehumidifier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228773A (en) * | 2011-06-02 | 2011-11-02 | 杭州溢达机电制造有限公司 | Afterheat regeneration absorbing type desiccator |
| CN102517110A (en) * | 2012-01-13 | 2012-06-27 | 重庆缔欧机械制造有限公司 | Injection type CNG (compressed natural gas) preposed drying device |
| CN104248905A (en) * | 2014-09-25 | 2014-12-31 | 江苏嘉宇流体装备有限公司 | High-pressure natural gas drying and purifying system |
| CN108325347A (en) * | 2016-06-27 | 2018-07-27 | 金华知产婺源信息技术有限公司 | A kind of zero gas consumption compressed air drier by afterheat regeneration |
-
2008
- 2008-10-10 CN CNU2008203023804U patent/CN201279431Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228773A (en) * | 2011-06-02 | 2011-11-02 | 杭州溢达机电制造有限公司 | Afterheat regeneration absorbing type desiccator |
| CN102228773B (en) * | 2011-06-02 | 2013-12-18 | 杭州溢达机电制造有限公司 | Afterheat regeneration absorbing type desiccator |
| CN102517110A (en) * | 2012-01-13 | 2012-06-27 | 重庆缔欧机械制造有限公司 | Injection type CNG (compressed natural gas) preposed drying device |
| CN104248905A (en) * | 2014-09-25 | 2014-12-31 | 江苏嘉宇流体装备有限公司 | High-pressure natural gas drying and purifying system |
| CN108325347A (en) * | 2016-06-27 | 2018-07-27 | 金华知产婺源信息技术有限公司 | A kind of zero gas consumption compressed air drier by afterheat regeneration |
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Granted publication date: 20090729 Termination date: 20151010 |
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