CN201404762Y - Adsorption high-pressure natural gas dehydration unit - Google Patents
Adsorption high-pressure natural gas dehydration unit Download PDFInfo
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- CN201404762Y CN201404762Y CN2009200333076U CN200920033307U CN201404762Y CN 201404762 Y CN201404762 Y CN 201404762Y CN 2009200333076 U CN2009200333076 U CN 2009200333076U CN 200920033307 U CN200920033307 U CN 200920033307U CN 201404762 Y CN201404762 Y CN 201404762Y
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Abstract
The utility model provides an adsorption high-pressure natural gas dehydration unit, which is characterized in that: a connecting pipe of the valve is communicated with a heat exchanger arranged on the connecting pipe; the connecting pipe is also provided with a reducing valve connected with the connecting pipe; the connecting pipe is communicated with an exhaust pipe; the connecting pipe of the valve is communicated with a heater arranged on the connecting pipe; the connecting pipe is also communicated with the heat exchanger arranged on the connecting pipe; the connecting pipe is also communicated with a gas-liquid separator arranged on a regeneration exhaust pipe. The reducing valve and the heat exchanger for processing finished gas are additionally arranged, so that the cooling fan isnot needed in the cooling process, thereby saving electrical energy and avoiding the trouble of explosion of a motor. Therefore, the adsorption high-pressure natural gas dehydration unit is safe and energy-saving.
Description
Technical field
The utility model relates to a kind of natual gas dehydrate unit, particularly relates to a kind of adsorption type high pressure natural gas dehydration device.
Background technology
At present, the absorption type natual gas dehydrate unit adopts Double-Tower Structure usually, and its operation principle is: when a tower dewatered absorption work, another tower carried out adsorbent reactivation.The tower that dewaters and adsorb is to utilize the interior adsorbent of tower that contained humidity in the unstripped gas is adsorbed, thereby makes the unstripped gas drying; Carry out the tower of adsorbent reactivation, generally be that the natural gas straight that will be used as regeneration gas taps into and enters this tower after heater is heated to the required temperature of regeneration, it is adsorbent bed to flow through, and adsorbent is heated, and make adsorbent moisture desorption, thereby reach the purpose of adsorbent reactivation.
The tower that carries out adsorbent reactivation can constantly be discharged regeneration gas when work, contain a large amount of water vapours in the regeneration gas of discharge and have higher temperature, and the moisture that contains in the wet regeneration gas must separate.The industrial wet regeneration gas that normally will contain is introduced in the cooler, adopts method air-cooled or water-cooled that regeneration gas is cooled off, and the moisture that will condense and other coagulating liq separate then.
But adopt air-cooled or there is following shortcoming in water-cooled:
Adopt when air-cooled, must use cooling blower, and need be than the heat exchanger of big heat exchange area, its cooling effect is subject to the influence of environment temperature, when environment temperature is higher, the refrigerated separation poor effect, and the motor that blower fan uses must be a fire-proof motor, and the cost of fire-proof motor is higher relatively, thereby makes the cost of whole system improve.
When adopting water cooling, need to consume a large amount of cooling waters, under lack of water environment such as desert, can't work like this; Even equipment is in the area that has abundant water resources, to the processing of cooling water and reclaim and still need drop into relevant equipment and fund, not only improved the cost of product, also easily environment is polluted.
Summary of the invention
The utility model provides a kind of absorption type natual gas dehydrate unit, utilizes high-pressure natural gas throttling effects of reduced temperature, and hot and cold air is carried out heat exchange, makes the thermal current cooling, and cold airflow heats up, and has reduced energy loss effectively, has simplified equipment, has saved the energy.
Technical solution of the present utility model is as follows:
The above adsorbent can use silica gel, aluminium glue or molecular sieve etc.
Adsorption type high pressure natural gas dehydration device of the present utility model, comprise the drier 101 that constitutes by drying tower 1,2, the upper and lower port of drier 101 reaches down with last piping 102 respectively, and piping 103 is communicated with, last piping 102 is made of the valve 3,4 of parallel connection and valve 5,6 parallel connections in parallel, and the tube connector 18 of valve 3,4 is communicated with fore filter 16 on being arranged at air inlet pipe 17; Following piping 103 is made of the valve 7,8 and valve 9,10 parallel connections in parallel of parallel connection, the tube connector 27 of valve 7,8 is communicated with post-filter 14 on being arranged at blast pipe 28, the tube connector 30 of valve 5,6 be arranged at tube connector 29 on being communicated with of heat exchanger 12, also be provided with the pressure-reducing valve 15 that is connected with tube connector 31 on the tube connector 29; Tube connector 31 is connected with blast pipe 28; The tube connector 23 of valve 9,10 is communicated with heater 11 on being arranged at tube connector 24, tube connector 24 also be arranged at tube connector 25 on heat exchanger 12 be communicated with, tube connector 25 also be arranged at regeneration blast pipe 26 on gas-liquid separator 13 be connected.
Above-described fore filter 16 configurable gas-liquid separators or accurate oil removal filter.
The adsorbent of filling in the above drying tower can use silica gel, aluminium glue or molecular sieve etc.
Advantage of the present utility model is:
1, utilizes Joule-Thomson effect, the pressure loss of high-pressure natural gas step-down process is converted into the cold energy of low-temperature airflow, do not cause the compression of gas to waste.
2, cooling fluid temperature is low, and good cooling results can reduce the heat exchange area of heat exchanger, so has dwindled the input of heat exchanger volume and fund.
When 3, thermal current was cooled, cold airflow with self temperature raising, can reduce heater power by heat exchange, reaches energy saving purposes, and can avoid heater case height low temperature alternation, has improved security.
4, cooling procedure is not used cooling blower, and saves energy has been avoided the explosion-proof trouble of motor again, energy-saving safe.
5, saved water cooling, the conserve water resource is simplified technological process.
6, can replace water-cooled and air-cooled, be widely used in the gas drier of decompression regeneration.
Description of drawings
Fig. 1 is the utility model structural representation;
The accompanying drawing detail is as follows: 1,2-drying tower; 3,4,5,6,7,8,9,10-valve; The 11-heater; The 12-heat exchanger; The 13-gas-liquid separator; The 14-post-filter; The 15-pressure-reducing valve; The 16-fore filter; 17- air inlet pipe 18,19,20,21,22,23,24,25,27,29,30,31-tube connector; The 28-blast pipe; The 26-blast pipe of regenerating, drier-101; Last piping-102; Following piping-103.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
As shown in Figure 1:
Adsorption type high pressure natural gas dehydration device of the present utility model comprises the drier 101 that is made of drying tower 1, drying tower 2, and drying tower can be selected silica dehydrator tower, aluminium glue drying tower or molecular sieve drying tower etc. for use.The upper and lower port of drier 101 reaches down with last piping 102 respectively, and piping 103 is communicated with, last piping 102 is made of the valve 3 of parallel connection, valve 4 and valve 5, valve 6 parallel connections in parallel, and the tube connector 18 of valve 3, valve 4 is communicated with fore filter 16 on being arranged at air inlet pipe 17; Following piping 103 is made of the valve 7 of parallel connection, valve 8 and valve 9, valve 10 parallel connections in parallel, and the tube connector 27 of valve 7, valve 8 is communicated with post-filter 14 on being arranged at blast pipe 28; The tube connector 30 of valve 5, valve 6 is connected with heat exchanger 12 on being arranged at tube connector 29, also is provided with the pressure-reducing valve 15 that is connected with tube connector 31 on the tube connector 29; Tube connector 31 is connected with tube connector 28; The tube connector 23 of valve 9, valve 10 is communicated with heater 11 on being arranged at tube connector 24, tube connector 24 also be arranged at tube connector 25 on heat exchanger 12 be communicated with, tube connector 25 also be arranged at regeneration blast pipe 26 on gas-liquid separator 13 be connected.Fore filter 16 configuration gas-liquid separator or accurate oil removal filters.The adsorbent of filling in the drying tower can use silica gel, aluminium glue or molecular sieve etc.
When drying tower 1 carries out absorption work, when drying tower 2 is regenerated:
Valve 3,6,7,10 is opened, and valve 4,5,8,9 is closed.
Adsorption process: the high-pressure natural gas that need dehydrate enters fore filter 16 by air inlet pipe 17, after isolated by filtration is fallen free fluid in the gas, enter drying tower 1 through tube connector 18, valve 3, tube connector 19 successively, gas is from top to bottom flowed through adsorbent bed, the adsorbents adsorb in the tower 1 that is dried of the moisture in the gas.
The dry gas that discharge the bottom of drying tower 1 enters post-filter 14 successively behind tube connector 20, valve 7 and tube connector 27, behind the solid dust particle in the separation removal gas, got rid of to gas bottle depot by blast pipe 28.
Regenerative process: when drying tower 1 adsorbed work, drying tower 2 was regenerated.By blast pipe 28 through tube connector 31 extension dry natural gas, by pressure-reducing valve 15 gas pressure is reduced to required regeneration pressure, because Joule-Thomson effect, its gas temperature of natural gas that pressure reduces also reduces and forms cryogenic gas, this cryogenic gas enters heat exchanger 12 through tube connector 29, after the thermal current heat exchange that enters by tube connector 30, gas temperature raises, enter heater 11 through tube connector 24 again, after being heated to the temperature of regeneration needs, again successively through tube connector 23, valve 19 and tube connector 22 enter drying tower 2, it is adsorbent bed from bottom to top to flow through, adsorbent is heated and takes away the resolved moisture that comes out, make adsorbent obtain regeneration, promptly recover absorption work again.
Containing humid gas is discharged by drying tower 2 tops, enter heat exchanger 12 through tube connector 21, valve 6 and tube connector 30, carry out heat exchange with the cold airflow that enters by tube connector 29, make himself temperature reduction, it is liquid that condensate moisture in the gas becomes, and enters gas-liquid separator 13 through tube connector 25 then, after the liquid moisture of carrying secretly in the gas is separated, discharge by blast pipe 26 again, discharge gas and enter the compressor pipe network.
After drying tower 2 regenerative processes finished, drying tower 1,2 switched, and after the switching, drying tower 2 carries out absorption work, and drying tower 1 then carries out regenerative process.So go round and begin again, the natural gas dry run is successively carried out.Valve switches by starting actuator control or switching manually, and regeneration cycle is controlled by single-chip microcomputer or PLC controller.
When drying tower 2 carries out absorption work, when drying tower 1 is regenerated:
Valve 4,5,8,9 is opened, and valve 3,6,7,10 is closed.
The course of work and drying tower 1 carry out absorption work, and the operation when drying tower 2 is regenerated is identical.
Claims (3)
1, a kind of adsorption type high pressure natural gas dehydration device, comprise the drier (101) that constitutes by drying tower (1), (2), the upper and lower port of described drier (101) reaches down with last piping (102) respectively, and piping (103) is communicated with, described valve (3), (4) and valve (5), (6) formation in parallel in parallel that goes up piping (102) by parallel connection, the tube connector (18) of described valve (3), (4) is communicated with fore filter (16) on being arranged at air inlet pipe (17); Described piping (103) down is by valve (7), (8) and valve (9), (10) formation in parallel in parallel of parallel connection, the tube connector (27) of described valve (7), (8) is communicated with post-filter (14) on being arranged at blast pipe (28), it is characterized in that: the tube connector (30) of described valve (5), (6) is communicated with heat exchanger (12) on being arranged at tube connector (29), also is provided with the pressure-reducing valve (15) that is connected with tube connector (31) on the described tube connector (29); Described tube connector (31) is connected with blast pipe (28); The tube connector (23) of described valve (9), (10) is communicated with heater (11) on being arranged at tube connector (24), described tube connector (24) also be arranged at tube connector (25) on heat exchanger (12) be communicated with, described tube connector (25) also be arranged at regeneration blast pipe (26) on gas-liquid separator (13) be connected.
2, according to claim 1 or 2 described adsorption type high pressure natural gas dehydration devices, it is characterized in that: described fore filter (16) configuration gas-liquid separator or accurate oil removal filter.
3, according to the described adsorption type high pressure natural gas dehydration device of claim 3, it is characterized in that: the adsorbent of filling in the described drying tower is silica gel, aluminium glue or molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200333076U CN201404762Y (en) | 2009-05-26 | 2009-05-26 | Adsorption high-pressure natural gas dehydration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200333076U CN201404762Y (en) | 2009-05-26 | 2009-05-26 | Adsorption high-pressure natural gas dehydration unit |
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| Publication Number | Publication Date |
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| CN201404762Y true CN201404762Y (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200333076U Expired - Lifetime CN201404762Y (en) | 2009-05-26 | 2009-05-26 | Adsorption high-pressure natural gas dehydration unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102703151A (en) * | 2012-06-06 | 2012-10-03 | 杭州正高气体科技有限公司 | Device for dehydrating natural gas of oil field |
| WO2016054790A1 (en) * | 2014-10-09 | 2016-04-14 | Basf Se | Heat exchange process for adsorber regeneration |
-
2009
- 2009-05-26 CN CN2009200333076U patent/CN201404762Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102703151A (en) * | 2012-06-06 | 2012-10-03 | 杭州正高气体科技有限公司 | Device for dehydrating natural gas of oil field |
| WO2016054790A1 (en) * | 2014-10-09 | 2016-04-14 | Basf Se | Heat exchange process for adsorber regeneration |
| CN106794445A (en) * | 2014-10-09 | 2017-05-31 | 巴斯夫欧洲公司 | For the heat change method of regenerative adsorption device |
| US9943828B2 (en) | 2014-10-09 | 2018-04-17 | Basf Se | Heat exchange process for adsorber regeneration |
| CN106794445B (en) * | 2014-10-09 | 2020-07-31 | 巴斯夫欧洲公司 | Heat exchange method for regenerating adsorbers |
| EA036481B1 (en) * | 2014-10-09 | 2020-11-16 | Басф Се | Process for adsorber regeneration |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |
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| CX01 | Expiry of patent term |