CN207047175U - Liquefied natural gas (LNG) production dehydration device - Google Patents
Liquefied natural gas (LNG) production dehydration device Download PDFInfo
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- CN207047175U CN207047175U CN201720874470.XU CN201720874470U CN207047175U CN 207047175 U CN207047175 U CN 207047175U CN 201720874470 U CN201720874470 U CN 201720874470U CN 207047175 U CN207047175 U CN 207047175U
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- dehydrating tower
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Abstract
The utility model discloses a kind of liquefied natural gas (LNG) production dehydration device, including dehydrating tower, dehydrating tower is vertical dehydrating tower, dehydrating tower top is provided with air inlet pipe, air inlet pipe is hook solid in the inside of dehydrating tower, interior upper wall of the exhaust outlet of air inlet pipe against dehydrating tower, the lower section of air inlet pipe is provided with flow-disturbing disk, flow-disturbing disk upper surface is provided with oil-absorbing resin, dehydrating tower is provided with stainless steel support network in the lower section of flow-disturbing disk, stainless steel support network upper surface is equipped with alumina adsorbant, stainless steel support network lower surface is connected with screen, molecular sieve is filled between screen and stainless steel support network, porcelain ball is filled with below molecular sieve, dehydrating tower bottom is provided with blast pipe, blast pipe is hook solid in the inside of dehydrating tower, lower inner wall of the air inlet of blast pipe against dehydrating tower, dehydrating tower is provided with flow-disturbing disk above blast pipe.The utility model is simple in construction, easy to use, can extend the service life of molecular sieve, improves the water-taking efficiency of molecular sieve.
Description
Technical field
It the utility model is related to gas dehydration apparatus field, more particularly to molecular sieve water separation tower technical field.
Background technology
Need to fall the moisture removal in unstripped gas during liquefied natural gas (LNG) production, be dehydrated used by gas dehydration
Technology typically has refrigerated separation method, solvent absorption evaporation, solid absorption evaporation and Dehydration Based on Membrane Tech-nology method, and more commonly used is solid
Body adsorption dewatering, and relatively common for molecular sieve dehydration tower technology in solid absorption evaporation, its principle is utilizes molecular sieve
Suction-operated, make water loading in natural gas over a molecular sieve, natural gas then flows through contactor, realizes removing natural gas
The purpose of reclaimed water.Dehydrating tower with the conversion of working condition, causes molecular sieve frequently to be impacted by air pressure in use,
Cause sieve particle to become powdered, lose moisture sorption effect.And molecular sieve aperture can be due to by greasy dirt etc. in use
Other impurities block, and cause molecular sieve to be poisoned, reduce the service life of molecular sieve.For problem above point, the utility model hair
It is bright to devise a kind of new dehydration tower apparatus, so as to extend the service life of molecular sieve, reduce production cost.
Utility model content
The purpose of this utility model is and the liquefied natural gas dehydration proposed in order to solve shortcoming present in prior art
Device.
To achieve these goals, the utility model employs following technical scheme：
Liquefied natural gas (LNG) production dehydration device, including dehydrating tower, the dehydrating tower are vertical dehydrating tower, the dehydrating tower
Top is provided with air inlet pipe, and the part that the air inlet pipe is stretched out outside dehydrating tower is provided with valve, and the air inlet pipe is stretched into dehydrating tower
The part in portion is hook solid, and the exhaust outlet of the air inlet pipe is against the interior upper wall of dehydrating tower, and the inside of the dehydrating tower is in air inlet
The lower section of pipe is provided with flow-disturbing disk, and the inwall vertical connection of the flow-disturbing disk and dehydrating tower, the upper surface of the flow-disturbing disk, which is provided with, inhales
Oleoresin, the inside of the flow-disturbing disk are provided with steam vent, and the inside of the dehydrating tower is provided with stainless steel branch in the lower section of flow-disturbing disk
The inwall vertical connection of net, the stainless steel support network and dehydrating tower is supportted, the upper surface laying of the stainless steel support network is aerobic
Change aluminium adsorbent, the lower surface of the stainless steel support network is connected with screen, the one end of the screen away from stainless steel support network
Another stainless steel support network is connected with, molecular sieve, the dehydration are filled between the screen and both ends stainless steel support network
The lower section of stainless steel support network of the tower below molecular sieve is provided with another stainless steel support network, and the stainless steel support network is with dividing
Porcelain ball is filled between the stainless steel support network of son sieve lower section, the dehydrating tower is provided with flow-disturbing disk in the lower section of porcelain ball, described de-
The bottom of water tower is provided with blast pipe, and the part that the blast pipe is stretched into inside dehydrating tower is hook solid, the air inlet of the blast pipe
For mouth against the lower inner wall of dehydrating tower, the part that the blast pipe is stretched out outside dehydrating tower is provided with valve.
Preferably, described two flow-disturbing disks and three stainless steel support network upper surfaces are mutually parallel, and with dehydrating tower
Side wall is vertical.
Preferably, for the oil-absorbing resin to be prepared using suspension polymerization, heat decomposition temperature is 366.68 DEG C.
Preferably, the molecular sieve model 4A type molecular sieves, appropriate regeneration temperature are 220 DEG C -250 DEG C.
Preferably, the inside of the flow-disturbing disk is provided with steam vent, and the steam vent is openning shape close to one end of molecular sieve,
To reduce flow velocity of the gas in molecular sieve.
The beneficial effects of the utility model：It is being dehydrated by setting two flow-disturbing disks in the inside of dehydrating tower and changing tracheae
Shape inside tower, gas can be made to be flowed to after dehydrating tower is entered and be changed, gas can be made by the steam vent on flow-disturbing disk
Body uniformly blows to molecular sieve, reduces the generation of air whirl and bias current in dehydrating tower, can also reduce the flow velocity of gas, so as to
Impact of the gas to molecular sieve spheroid is reduced, reduces the efflorescence of molecular sieve spheroid；After original gas enters dehydrating tower, first to pass through
Oil-absorbing resin is crossed, then by alumina adsorbant, the oily matter and acidic materials in original gas are can remove, such as long-chain hydro carbons
And hydrogen sulfide, so as to reduce the blocked chance of molecular sieve aperture, delay the poisoning of molecular sieve, so as to improve the use of molecular sieve
In the life-span, reduce production cost.
Brief description of the drawings
Fig. 1 be the utility model proposes liquefied natural gas (LNG) production dehydration device front view；
Fig. 2 be the utility model proposes liquefied natural gas (LNG) production dehydration device spoiler structural representation；
In figure：1 dehydrating tower, 2 air inlet pipe, 3 valves, 5 flow-disturbing disks, 6 oil-absorbing resins, 7 steam vents, 8 stainless steel support networks, 9
Alumina adsorbant, 10 screens, 11 stainless steel support networks, 12 molecular sieves, 13 stainless steel support networks, 14 porcelain balls, 15 flow-disturbing disks,
16 blast pipes, 17 valves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1, liquefied natural gas (LNG) production dehydration device, including dehydrating tower 1, dehydrating tower 1 are vertical dehydrating tower, dehydrating tower
1 top is provided with air inlet pipe 2, and the part that air inlet pipe 2 is stretched out outside dehydrating tower 1 is provided with valve 3, and air inlet pipe 2 stretches into dehydrating tower 1
Internal part is hook solid, and the exhaust outlet of air inlet pipe 2 is against the interior upper wall of dehydrating tower 1, and the inside of dehydrating tower 1 is in air inlet pipe 2
Lower section be provided with flow-disturbing disk 5, the inwall vertical connection of flow-disturbing disk 5 and dehydrating tower 1, the upper surface of flow-disturbing disk 5 is provided with oil-absorbing resin
6, the inside of flow-disturbing disk 5 is provided with steam vent 7, and the inside of dehydrating tower 1 is provided with stainless steel support network 8 in the lower section of flow-disturbing disk 5, stainless
The inwall vertical connection of bracing members net 8 and dehydrating tower 1, the upper surface of stainless steel support network 8 are equipped with alumina adsorbant 9, no
The lower surface of rust bracing members net 8 is connected with screen 10, and the one end of screen 10 away from stainless steel support network 8 is connected with stainless bracing members
Net 11, molecular sieve 12 is filled between screen 10 and stainless steel support network 8,11, dehydrating tower 1 is in the lower section of stainless steel support network 11
Provided with stainless steel support network 13, porcelain ball 14 is filled between stainless steel support network 11 and 13, dehydrating tower 1 is in stainless steel support network 13
Lower section be provided with flow-disturbing disk 15, the bottom of the dehydrating tower 1 is provided with blast pipe 16, and the blast pipe 16 is stretched into inside dehydrating tower 1
Part be hook solid, against the lower inner wall of dehydrating tower 1, blast pipe 16 stretches out the outside of dehydrating tower 1 for the air inlet of blast pipe 16
Part be provided with valve 17.The upper surface of flow-disturbing disk 5,15 is mutually parallel with the upper surface of stainless steel support network 8,11,13, and
With the madial wall vertical connection of dehydrating tower 1；For oil-absorbing resin 6 to be prepared using suspension polymerization, heat decomposition temperature is 366.68 DEG C；
The model 4A type molecular sieves of molecular sieve 12, appropriate regeneration temperature are 220 DEG C -250 DEG C.The inside of flow-disturbing disk 5,15 is provided with steam vent
7, steam vent 7 is openning shape close to one end of molecular sieve 12, to reduce flow velocity of the gas in molecular sieve 12.
Operation principle：During the adsorption dewatering of original gas, valve 3 is opened, and is located before having already passed through de-oiling, desulfurization etc.
The gas of reason is flowed into dehydrating tower by air inlet pipe 2, guiding and flow-disturbing disk 5 and oil-absorbing resin 6 by hook solid air inlet pipe 2
Flow-disturbing, reduce gas flow rate, oily matter content also reduces, and then uniformly blows to alumina adsorbant by flow-disturbing disk
9, by the suction-operated of alumina adsorbant 9, oily matter and acidic materials in gas are further reduced, then gas
Contacted with molecular sieve, the moisture overwhelming majority in gas is by molecular sieve adsorption, and so as to reach the effect of dehydration, gas is further equal
It is even by porcelain ball 14 and flow-disturbing disk 15, discharged from blast pipe 16；Dehydration terminate rear molecular sieve 12 need to carry out regeneration and
Cooling treatment, in regenerative process, heated regeneration gas enters from blast pipe 16, by blast pipe 16 and flow-disturbing disk 15
Guiding processing, regeneration gas uniformly blow to from the bottom up porcelain ball 14, molecular sieve 12, alumina adsorbant 9, flow-disturbing disk 5, inhale
Oleoresin 6, tower body is discharged by air inlet pipe 2, in cooling procedure, the flow direction of cooling gas is consistent with regenerative process, but cooling
Gas need not heat before dehydrating tower 1 is entered；In regenerative process, the temperature of regeneration gas is less than between 220 DEG C -250 DEG C
The heat decomposition temperature of oil-absorbing resin 6, therefore oil-absorbing resin 6 can be long-term use of.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. liquefied natural gas (LNG) production dehydration device, including dehydrating tower（1）, it is characterised in that the dehydrating tower（1）For vertical dehydration
Tower, the dehydrating tower（1）Top be provided with air inlet pipe（2）, the air inlet pipe（2）Stretch out dehydrating tower（1）The part of outside set
There is valve（3）, the air inlet pipe（2）In dehydrating tower（1）The part of inside be hook solid, the air inlet pipe（2）Exhaust outlet
Against dehydrating tower（1）Interior upper wall, the lower section of the air inlet pipe (2) is provided with flow-disturbing disk（5）, the flow-disturbing disk（5）Four side walls
With dehydrating tower（1）Inwall vertical connection, the flow-disturbing disk（5）Upper surface be provided with oil-absorbing resin（6）, the flow-disturbing disk（5）
Inside be provided with steam vent（7）, the dehydrating tower（1）Inside in flow-disturbing disk（5）Lower section be provided with stainless steel support network（8）,
The stainless steel support network（8）With dehydrating tower（1）Inwall vertical connection, the stainless steel support network（8）Upper surface laying
There is alumina adsorbant（9）, the stainless steel support network（8）Lower surface be connected with screen（10）, the screen（10）It is remote
Stainless steel support network（8）One end be connected with stainless steel support network（11）, the screen（10）With stainless steel support network（8）、
（11）Between be filled with molecular sieve（12）, the dehydrating tower（1）Away from stainless steel support network（11）One end be provided with stainless steel branch
Support net（13）, the stainless steel support network（11）With（13）Between be filled with porcelain ball（14）, the stainless steel support network（13）'s
Lower section is provided with flow-disturbing disk（15）, the dehydrating tower（1）Bottom be provided with blast pipe (16), the blast pipe (16) stretches into dehydrating tower
(1) pipeline in is hook solid, the blast pipe（16）Air inlet against dehydrating tower（1）Lower inner wall, the blast pipe
(16) stretch out the outside part of dehydrating tower (1) and be provided with valve（17）.
2. liquefied natural gas (LNG) production dehydration device according to claim 1, it is characterised in that the flow-disturbing disk（5）、（15）
Upper surface and stainless steel support network（8）、（11）、（13）Upper surface it is mutually parallel, and and dehydrating tower（1）Madial wall hang down
It is direct-connected to connect.
3. liquefied natural gas (LNG) production dehydration device according to claim 1, it is characterised in that the oil-absorbing resin（6）For
Prepared using suspension polymerization, its heat decomposition temperature is 366.68 DEG C.
4. liquefied natural gas (LNG) production dehydration device according to claim 1, it is characterised in that the molecular sieve（12）Model
For 4A type molecular sieves, its appropriate regeneration temperature is 220 DEG C -250 DEG C.
5. liquefied natural gas (LNG) production dehydration device according to claim 1, it is characterised in that the flow-disturbing disk（5）、（15）
Inside be provided with steam vent（7）, the steam vent（7）Close to molecular sieve（12）One end be openning shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874470.XU CN207047175U (en) | 2017-07-19 | 2017-07-19 | Liquefied natural gas (LNG) production dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874470.XU CN207047175U (en) | 2017-07-19 | 2017-07-19 | Liquefied natural gas (LNG) production dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207047175U true CN207047175U (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720874470.XU Expired - Fee Related CN207047175U (en) | 2017-07-19 | 2017-07-19 | Liquefied natural gas (LNG) production dehydration device |
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| CN (1) | CN207047175U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646981A (en) * | 2018-11-23 | 2019-04-19 | 杰瑞(天津)石油工程技术有限公司 | A kind of acetic acid rectifying and dewatering Tower System |
| CN110923027A (en) * | 2019-12-19 | 2020-03-27 | 珠海巨涛海洋石油服务有限公司 | Natural gas dehydration device |
| CN111454757A (en) * | 2020-04-09 | 2020-07-28 | 王湘君 | Natural gas degreaser |
| CN112484395A (en) * | 2020-11-18 | 2021-03-12 | 浙江理工大学 | Air separation equipment with explosion-proof function |
-
2017
- 2017-07-19 CN CN201720874470.XU patent/CN207047175U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646981A (en) * | 2018-11-23 | 2019-04-19 | 杰瑞(天津)石油工程技术有限公司 | A kind of acetic acid rectifying and dewatering Tower System |
| CN110923027A (en) * | 2019-12-19 | 2020-03-27 | 珠海巨涛海洋石油服务有限公司 | Natural gas dehydration device |
| CN110923027B (en) * | 2019-12-19 | 2021-01-19 | 珠海巨涛海洋石油服务有限公司 | Natural gas dehydration device |
| CN111454757A (en) * | 2020-04-09 | 2020-07-28 | 王湘君 | Natural gas degreaser |
| CN111454757B (en) * | 2020-04-09 | 2021-09-17 | 宁夏新珂源能源利用有限公司 | Natural gas degreaser |
| CN112484395A (en) * | 2020-11-18 | 2021-03-12 | 浙江理工大学 | Air separation equipment with explosion-proof function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 |