CN110018278A - Triethylene glycol dehydration and regenerative analogue experimental system based on medium circulation - Google Patents
Triethylene glycol dehydration and regenerative analogue experimental system based on medium circulation Download PDFInfo
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Abstract
The invention discloses a kind of triethylene glycol dehydration and regenerative analogue experimental system based on medium circulation, including medium source, TEG dehydration device, triethylene glycol regenerating unit, medium source includes simulation gas source, triethylene glycol liquid source, and simulation gas source is connected with the air inlet of impurity gas source, source of purified water, TEG dehydration device in turn；The triethylene glycol lean solution entrance of TEG dehydration device connects triethylene glycol liquid source, and the entrance of the triethylene glycol rich solution outlet connection triethylene glycol regenerating unit of TEG dehydration device, the lean solution outlet of triethylene glycol regenerating unit connects triethylene glycol liquid source through reflux line；TEG dehydration device, triethylene glycol regenerating unit also form medium back flow closed loop with simulation gas source, impurity gas source, source of purified water.The utility model has the advantages that the case where simulation natural gas dehydration process and dehydrating agent triethylene glycol regenerate, triethylene glycol regenerating unit simulates the triethylene glycol rich solution cases of dehydration under different condition, and the various media for participating in experiment form closed-loop and recycle, and reduce experimental cost and environmental pollution.
Description
Technical field
The present invention relates to triethylene glycol regeneration tests technical fields, and in particular to a kind of triethylene glycol dehydration based on medium circulation
And regenerative analogue experimental system.
Background technique
Currently, being widely applied in natural gas dehydration process with the requirement of energy-saving and emission-reduction with the development of technology
Traditional triethylene glycol evaporation, due to the influence of various factors, triethylene glycol consumption loss is huge, and most enterprise and laboratory are past
Toward after using once, just triethylene glycol is abandoned, no longer secondary use, production or the cost of experiment is enabled to greatly increase.But three
For glycol as water absorbing agent, water absorbing capacity is not to be realized by irreversible chemical reaction, therefore only need wherein to inhale
The moisture of receipts is removed again, then triethylene glycol can utilize again.
Reality is in triethylene glycol regenerative process, is to arrange by previous experience to formulate mostly due to lacking theoretical direction
It applies, enables the service life of triethylene glycol that can not reach ideal effect, or even can not learn the factor for leading to the triethylene glycol lost of life
Which is, can not specific aim overcome the problems, such as, keep triethylene glycol regeneration effect poor.
The defect of the prior art: lack triethylene glycol regenerative process theoretical research and guidance, can not specific aim overcome influence
The short problem of its service life.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of dehydration of the triethylene glycol of medium circulation and regenerative analogue experimental system,
The case where natural gas dehydration process and dehydrating agent triethylene glycol regenerate is simulated, precisely checks each factor to the regenerated influence of triethylene glycol,
To provide fundamental basis for production application, and the various media for participating in experiment form closed-loop and recycle, and reduce real
Test cost and environmental pollution.
Its technical solution is as follows:
A kind of triethylene glycol dehydration and regenerative analogue experimental system based on medium circulation, comprising:
Medium source, for providing simulation gas to be drained off, triethylene glycol lean solution；
TEG dehydration device, for removing the moisture in simulation gas to be drained off；
Triethylene glycol regenerating unit, for converting triethylene glycol lean solution for the triethylene glycol rich solution for absorbing moisture；
The medium source includes simulation gas source, triethylene glycol liquid source, and the simulation gas outlet of the simulation gas source is connected with impurity
The gas outlet of the air inlet of gas source, the impurity gas source is connected with the air intake of source of purified water, the gas outlet of the source of purified water
Connect the air inlet of the TEG dehydration device；
The simulation gas source is accessed through exhaust pipe in gas outlet at the top of the TEG dehydration device, and the triethylene glycol is de-
The triethylene glycol lean solution entrance of water installations connects triethylene glycol liquid source, and the triethylene glycol rich solution outlet of the TEG dehydration device connects
Connect the entrance of the triethylene glycol regenerating unit, the lean solution of the triethylene glycol regenerating unit exports that connect described three through reflux line sweet
The foreign gas outlet in alcohol liquid source, the triethylene glycol regenerating unit connects the impurity gas source through exhaust piping, and described three is sweet
The steam (vapor) outlet of alcohol regenerating unit successively accesses the source of purified water through condenser pipe, water pump.
By above-mentioned design, the simulation gas simulated in gas source adds through impurity gas source impurity gas, then through source of purified water
Add moisture, become aqueous, impure simulation gas to be drained off, completely the state of the practical natural gas of simulation, simulation gas to be drained off into
Enter TEG dehydration device, the triethylene glycol lean solution in triethylene glycol liquid source flows into TEG dehydration device, moisture and triethylene glycol lean solution
Dehydration becomes dry gas after contact, and dry gas returns to simulation gas source through exhaust pipe.Triethylene glycol switchs to rich solution by lean solution, into triethylene glycol
Regenerating unit, triethylene glycol regenerating unit become lean solution again after being dehydrated triethylene glycol rich solution and pass back into triethylene glycol liquid source again.Meanwhile three is sweet
Impurity therein, moisture can successively be precipitated in alcohol rich solution dehydration, send impurity back to impurity gas source, moisture is inputted into pure water
Source, forms the closed loop cycle of all dielectric, on the one hand reduces Medium Replacement cost, reduces environmental pollution, on the other hand, mould to be drained off
The production of quasi- gas is necessarily influenced ingredient by concentration, pressure of different batches medium etc., then with a collection of medium circulation experiment, more favorably
In the interference that reduction experimental data is affected by other factors, the reliability between different groups of experimental datas is promoted.
In addition, triethylene glycol regenerating unit can simulate the triethylene glycol rich solution cases of dehydration under different condition, found out pair with this
The biggish factor of triethylene glycol regeneration effect completes the purpose of experimental teaching, while also providing fundamental basis for actual production, reduces
Production and research and development cost.
Further design, the triethylene glycol regenerating unit are provided with the parallel reboiler combination of N group, and N is just whole greater than 1
The structure of number, the combination of reboiler described in every group is consistent, includes reboiler, is communicated with regenerator at the top of the reboiler, institute
It states the steam (vapor) outlet at the top of regenerator and accesses the condenser pipe, the bottom of the reboiler is communicated with surge tank, any two groups of institutes
It is different or heating temperature is different or can body material is different to state air pressure in the reboiler or tank of reboiler combination；
The liquid inlet of the reboiler is provided with liquid-enriched valve, and the liquid outlet of the surge tank is provided with lean solution valve.
For triethylene glycol rich solution after reboiler heats, moisture vaporization transpiration therein enters regenerator, and liquid triethylene glycol becomes
Lean solution flows into surge tank, to realize the separation of triethylene glycol and water, but different conditions may turn lean solution to triethylene glycol rich solution
Efficiency generate Different Effects, and by above-mentioned design, other conditions are consistent between two reboilers, only retain one
Influence factor is variant, compares to obtain this factor to the regenerated influence of triethylene glycol with this, and regenerated three sweet under different situations
Alcohol also can intuitively embody the dehydrating effect of moisture, can directly obtain optimal solution；
Particularly noteworthy is this factor of reboiler can body material, since whether triethylene glycol during heating can be by
Catalysis generates chemical reaction and enables triethylene glycol permanent loss, and this point may be influenced by can body material, and the judgement of unlike material
Multiple reboilers are necessarily required to, therefore can not realize the judgement of reaction wood confrontation triethylene glycol regeneration effect on single reboiler.
Further design, the triethylene glycol regenerating unit further include a flash tank, the liquid inlet of the flash tank with
The triethylene glycol rich solution outlet of the TEG dehydration device connects, and the exhaust outlet of the flash tank is connected with exhaust piping；
The liquid outlet of the flash tank accesses the rich solution entrance of rich or poor liquid heat-exchanger rig through active carbon filter, described rich or poor
The rich solution outlet of liquid heat-exchanger rig is respectively connected to N number of liquid-enriched valve, the lean solution entrance of the rich or poor liquid heat-exchanger rig through pipeline
It is separately connected N number of lean solution valve, the lean solution of the rich or poor liquid heat-exchanger rig, which is exported, accesses the reflux line through reflux pump.
Since simulation gas can simulate completely natural gas situation mixed with a small amount of foreign gas with this, and foreign gas can be de-
It is absorbed together when water by triethylene glycol, then flash tank is needed to remove the foreign gas in triethylene glycol rich solution, active carbon filtering
Device can absorb unstripped impurity out, further purify to triethylene glycol, the lean solution that the rich solution after purification is flowed out with lean solution outlet again
It exchanges heat, at this point, rich solution temperature is higher than lean solution, the moisture not being completely exfoliated in lean solution after heat exchange can be isolated again, to be promoted
Regeneration efficiency.
It further designs, space top is provided with coiling fluid passage in the tower of the regenerator, described to coil the two of fluid passage
Regenerator outer surface is extended in a port, and is connected to a feed liquor switch valve and one respectively and goes out liquid switch valve；
The triethylene glycol rich solution outlet of the TEG dehydration device accesses N number of feed liquor switch valve through general pipeline, and described three
Glycol reclamation device further includes a flash tank, and the liquid inlet of the flash tank is separately connected N number of liquid switch valve out, described
The exhaust outlet of flash tank is connected with exhaust piping；
The liquid outlet of the flash tank accesses the rich solution entrance of rich or poor liquid heat-exchanger rig through active carbon filter, described rich or poor
The rich solution outlet of liquid heat-exchanger rig is respectively connected to N number of liquid-enriched valve, the lean solution entrance of the rich or poor liquid heat-exchanger rig through pipeline
It is separately connected N number of lean solution valve, the lean solution of the rich or poor liquid heat-exchanger rig, which is exported, accesses the reflux line through reflux pump.
Coiling fluid passage is the pipeline that spirals for being used for triethylene glycol circulation, is flooded with vapor in regenerator, therefore upper part
Coiling fluid passage can be heated through vapor, and the triethylene glycol temperature that flows through rises in coiling fluid passage, enter back into flash tank be conducive to it is miscellaneous
Matter is more preferably precipitated with partial moisture, promotes whole efficiency, while the coiling fluid passage whether triethylene glycol passes through heating also may be selected, with
This judges the step on the regenerated influence of triethylene glycol.
Further design, is additionally provided with gas-liquid heat exchange device, wherein institute between the reflux pump and the reflux line
The fluid passage entrance that the reflux pump accesses the gas-liquid heat exchange device is stated, the reflux line connects the gas-liquid heat exchange device
Fluid passage outlet, the air flue entrance of the gas-liquid heat exchange device connect the gas outlet of the TEG dehydration device, and the gas-liquid is changed
The air passage outlet of thermal connects the exhaust pipe.
By above-mentioned design, dewatered simulation gas exchanges heat with triethylene glycol lean solution, can reduce the temperature of lean solution, with
It prevents from flowing into dehydration device because of the partial moisture in the excessively high evaporation simulation gas of temperature, influences dehydration results judgement.
Further design, the TEG dehydration device are provided with absorption tower, arrange from top to bottom in the absorption tower
There are M layers of sieve plate, every layer of sieve plate is provided with the sieve pore of array distribution；
It is gas outlet at the top of the absorption tower, triethylene glycol lean solution entrance is arranged in the absorption tower top, and position is higher than most
The sieve plate on upper layer, the absorption tower lower part are provided with air inlet and triethylene glycol rich solution outlet, and the position of the two is below most
The sieve plate of bottom, the absorb the bottom of the tower are provided with sewage draining exit；
The air inlet on the absorption tower is connected with the gas outlet of filter separator, the air inlet connection of the filter separator
The gas outlet of the source of purified water, the filter separator bottom are provided with sewage draining exit.
Above-mentioned design enters moisture from absorption tower lower part, and triethylene glycol is entered by absorption tower top, and moisture is through sieve plate layer by layer
Rise, triethylene glycol is fallen along the sieve pore of sieve plate, and the two completes moisture dehydration after coming into full contact with, under triethylene glycol rich solution warp after the completion
Portion's discharge, into regenerating unit.
Simulation gas source generallys use nitrogen to simulate natural gas, and due to the characteristic that it is not susceptible to reaction, is testing
It is safer in journey, after gas is passed through source of purified water the moisture with steam can be formed, natural gas is simulated with steam with this
State.
Further design, the TEG dehydration device and triethylene glycol regenerating unit are fixedly installed on backboard.This
Design is convenient for fixed and experimental observation.
Compared with prior art, beneficial effects of the present invention: simulation natural gas dehydration process and the regeneration of dehydrating agent triethylene glycol
The case where, triethylene glycol regenerating unit simulates the triethylene glycol rich solution cases of dehydration under different condition, is found out with this and is regenerated to triethylene glycol
The factor being affected precisely checks each factor on the regenerated influence of triethylene glycol, to provide theoretical base for production application
Plinth completes the purpose of experimental teaching, while also providing fundamental basis for actual production, reduces production and research and development cost, and participate in
The various media of experiment form closed-loop and recycle, and reduce experimental cost and environmental pollution.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention；
Fig. 2 is the schematic diagram of embodiment.
Specific embodiment
The invention will be further described with attached drawing with reference to embodiments.
It is a kind of based on medium circulation triethylene glycol dehydration and regenerative analogue experimental system, as shown in Figure 1, include medium source 1,
TEG dehydration device 2, triethylene glycol regenerating unit 3；
The medium source 1 includes simulation gas source 11, triethylene glycol liquid source 12, and the simulation gas of the simulation gas source 11 exports connection
There is the air inlet of impurity gas source 13, the gas outlet of the impurity gas source 13 is connected with the air intake of source of purified water 14, described pure
The gas outlet at water source 14 connects the air inlet of the TEG dehydration device 2；
The simulation gas source 11, the triethylene glycol are accessed through exhaust pipe 5 in the gas outlet at 2 top of TEG dehydration device
The triethylene glycol lean solution entrance of dehydration device 2 connects triethylene glycol liquid source 12, the triethylene glycol rich solution of the TEG dehydration device 2
Outlet connects the entrance of the triethylene glycol regenerating unit 3, and the lean solution outlet of the triethylene glycol regenerating unit 3 connects through reflux line 6
Triethylene glycol liquid source 12 is connect, the foreign gas outlet of the triethylene glycol regenerating unit 3 connects the impurity through exhaust piping 7
Gas source 13, the steam (vapor) outlet of the triethylene glycol regenerating unit 3 successively access the source of purified water 14 through condenser pipe 4, water pump 15.
If illustrated in Fig. 2, simulating the gas in gas source 11 is nitrogen, is hydrogen sulfide, the second of low concentration in impurity gas source 13
Alkane, propane hold pure water in source of purified water 14.
The TEG dehydration device 2 is provided with absorption tower 21, is disposed with M layers of sieve in the absorption tower 21 from top to bottom
Plate, every layer of sieve plate are provided with the sieve pore of array distribution；
It is gas outlet at the top of the absorption tower 21, triethylene glycol lean solution entrance is arranged in 21 top of absorption tower, and position is high
In the sieve plate of top layer, 21 lower part of absorption tower is provided with air inlet and triethylene glycol rich solution outlet, and the position of the two is equal
Lower than the sieve plate of the bottom, 21 bottom of absorption tower is provided with sewage draining exit；
The air inlet on the absorption tower 21 is connected with the gas outlet of filter separator 22, the air inlet of the filter separator 22
Mouth connects the gas outlet of the source of purified water 14, and 22 bottom of filter separator is provided with sewage draining exit.
The triethylene glycol regenerating unit 3 is provided with 3 groups of parallel reboiler combinations 31, the combination of reboiler described in every group 31
Structure is consistent, includes reboiler 311, and the top of the reboiler 311 is communicated with regenerator 312,312 top of regenerator
Steam (vapor) outlet access the condenser pipe 4, the bottom of the reboiler 311 is communicated with surge tank 313, wherein the regenerator
Space top is provided with coiling fluid passage 312a in 312 tower, and regenerator 312 is extended in two ports of the coiling fluid passage 312a
Outer surface, and be connected to a feed liquor switch valve 312b and one respectively and go out liquid switch valve 312c；
Since the influence research that air pressure reacts triethylene glycol with temperature is more, the present embodiment is to simplify step, by 3
Air pressure in a reboiler 311 is set as atmospheric pressure, and heating temperature is controlled at 190-205 DEG C, and the 1st reboiler 311 is iron
Tank, the 2nd reboiler 311 are aluminium pot, and the 3rd reboiler 311 is ceramic pot；
The liquid inlet of the reboiler 311 is provided with liquid-enriched valve 314, and the liquid outlet of the surge tank 313 is provided with lean solution
Valve 315.
The triethylene glycol regenerating unit 3 of embodiment includes a flash tank 32, and the exhaust outlet of the flash tank 32 connects
It is connected to exhaust piping 7；
The liquid outlet of the flash tank 32 accesses the rich solution entrance of rich or poor liquid heat-exchanger rig 34, institute through active carbon filter 33
The rich solution outlet for stating rich or poor liquid heat-exchanger rig 34 is respectively connected to 3 liquid-enriched valves 314, the rich or poor liquid heat exchange dress through pipeline
The lean solution entrance for setting 34 is separately connected 3 lean solution valves 315, and the lean solution of the rich or poor liquid heat-exchanger rig 34 is exported through reflux pump
The 35 access reflux lines 6.
Gas-liquid heat exchange device 36 is additionally provided between the reflux pump 35 and the reflux line 6, wherein described to return
The fluid passage entrance of the 35 access gas-liquid heat exchange device 36 of stream pump, the reflux line 6 connect the gas-liquid heat exchange device 36
Fluid passage outlet, the air flue entrance of the gas-liquid heat exchange device 36 connect the gas outlet of the TEG dehydration device 2, the gas-liquid
The air passage outlet of heat-exchanger rig 36 connects the exhaust pipe 5.
The rich or poor liquid heat-exchanger rig 34 and gas-liquid heat exchange device 36 of embodiment are both preferably plate heat exchanger, specific structure
For closed assembly forms at regular intervals by the ripply thin plate of many punching presses, thin rectangular shape channel is formed between each thin plate, passes through plate
Carry out heat exchange.Thin plate surrounding with frame and is compressed spiral overlapping and compressed by gasket seal, thin plate and gasket
Four corner apertures form the distribution pipe and manifold trunk of fluid, while again reasonably separating cold fluid and hot fluid, make it respectively at every piece
It is flowed in the runner of plate two sides, heat exchange is carried out by plate, be liquid-liquid, liquid-vapour progress heat exchange ideal equipment.
It has the characteristics that heat exchange efficiency is high, heat loss is small, advantages of compact and light structure, occupied area is small, is widely used, long service life.
In embodiment shown in Fig. 2, the triethylene glycol of the liquid inlet of the flash tank 32 and the TEG dehydration device 2
Rich solution outlet can be both directly connected to, and also can access 3 through general pipeline 23 by the triethylene glycol rich solution outlet of the TEG dehydration device 2
The feed liquor switch valve 312b, the triethylene glycol regenerating unit 3 further include a flash tank 32, the liquid inlet of the flash tank 32
Go out liquid switch valve 312c described in being separately connected 3.
Above-mentioned TEG dehydration device 2 is fixedly installed on backboard 8 with triethylene glycol regenerating unit 3.
For convenient for monitoring and controlling, each reboiler 311 is correspondingly arranged on temperature controller, the outlet of gas humidifier
Mouth, the gas outlet of filter separator 22, absorption tower 21 gas outlet be provided with hygrometer, it is internal that flash tank 32 is provided with detection
The pressure gauge of pressure.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (7)
1. it is a kind of based on medium circulation triethylene glycol dehydration and regenerative analogue experimental system, be characterized in that include:
Medium source (1), for providing simulation gas to be drained off, triethylene glycol lean solution；
TEG dehydration device (2), for removing the moisture in simulation gas to be drained off；
Triethylene glycol regenerating unit (3), for converting triethylene glycol lean solution for the triethylene glycol rich solution for absorbing moisture；
The medium source (1) includes simulation gas source (11), triethylene glycol liquid source (12), the simulation gas outlet of simulation gas source (11)
It is connected with the air inlet of impurity gas source (13), what the gas outlet of the impurity gas source (13) was connected with source of purified water (14) enters gas
Mouthful, the gas outlet of the source of purified water (14) connects the air inlet of the TEG dehydration device (2)；
The simulation gas source (11) is accessed through exhaust pipe (5) in gas outlet at the top of the TEG dehydration device (2), and described three
The triethylene glycol lean solution entrance of glycol dehydration device (2) connects triethylene glycol liquid source (12), the TEG dehydration device (2)
Triethylene glycol rich solution outlet connects the entrance of the triethylene glycol regenerating unit (3), the lean solution outlet of the triethylene glycol regenerating unit (3)
Triethylene glycol liquid source (12) are connected through reflux line (6), the foreign gas outlet of the triethylene glycol regenerating unit (3) is through useless
Feed channel (7) connects the impurity gas source (13), the steam (vapor) outlet of the triethylene glycol regenerating unit (3) successively through condenser pipe (4),
Water pump (15) accesses the source of purified water (14).
2. the triethylene glycol dehydration and regenerative analogue experimental system according to claim 1 based on medium circulation, is characterized in that:
The triethylene glycol regenerating unit (3) is provided with the parallel reboiler combination (31) of N group, and N is the positive integer greater than 1, described in every group
The structure that reboiler combines (31) is consistent, includes reboiler (311), is communicated with regenerator at the top of the reboiler (311)
(312), the steam (vapor) outlet at the top of the regenerator (312) accesses the condenser pipe (4), and the bottom of the reboiler (311) connects
It is connected with surge tank (313), air pressure is different in the reboiler (311) or tank of the combination of reboiler described in any two groups (31) or heats
Temperature is different or can body material is different；
The liquid inlet of the reboiler (311) is provided with liquid-enriched valve (314), and the liquid outlet of the surge tank (313) is provided with poor
Liquid valve (315).
3. a kind of triethylene glycol of medium circulation according to claim 2 is dehydrated and regenerative analogue experimental system, it is characterized in that:
The triethylene glycol regenerating unit (3) further includes a flash tank (32), the liquid inlet and the triethylene glycol of the flash tank (32)
The triethylene glycol rich solution outlet of dehydration device (2) connects, and the exhaust outlet of the flash tank (32) is connected with exhaust piping (7)；
The liquid outlet of the flash tank (32) accesses the rich solution entrance of rich or poor liquid heat-exchanger rig (34) through active carbon filter (33),
The rich solution outlet of the rich or poor liquid heat-exchanger rig (34) is respectively connected to N number of liquid-enriched valve (314) through pipeline, and the rich or poor liquid changes
The lean solution entrance of thermal (34) is separately connected N number of lean solution valve (315), and the lean solution of the rich or poor liquid heat-exchanger rig (34) goes out
Mouth accesses the reflux line (6) through reflux pump (35).
4. the triethylene glycol dehydration and regenerative analogue experimental system according to claim 2 based on medium circulation, is characterized in that:
Space top is provided with coiling fluid passage (312a), two ends of coiling fluid passage (312a) in the tower of the regenerator (312)
Mouth extends regenerator (312) outer surface, and is connected to a feed liquor switch valve (312b) respectively and goes out liquid switch valve with one
(312c)；
The triethylene glycol rich solution outlet of the TEG dehydration device (2) accesses N number of feed liquor switch valve through general pipeline (23)
(312b), the triethylene glycol regenerating unit (3) further include a flash tank (32), and the liquid inlet of the flash tank (32) connects respectively
Connect it is N number of it is described go out liquid switch valve (312c), the exhaust outlet of the flash tank (32) is connected with exhaust piping (7)；
The liquid outlet of the flash tank (32) accesses the rich solution entrance of rich or poor liquid heat-exchanger rig (34) through active carbon filter (33),
The rich solution outlet of the rich or poor liquid heat-exchanger rig (34) is respectively connected to N number of liquid-enriched valve (314) through pipeline, and the rich or poor liquid changes
The lean solution entrance of thermal (34) is separately connected N number of lean solution valve (315), and the lean solution of the rich or poor liquid heat-exchanger rig (34) goes out
Mouth accesses the reflux line (6) through reflux pump (35).
5. the triethylene glycol dehydration and regenerative analogue experimental system, feature according to claim 3 or 4 based on medium circulation exists
In: it is additionally provided between the reflux pump (35) and the reflux line (6) gas-liquid heat exchange device (36), wherein described
Reflux pump (35) accesses the fluid passage entrance of the gas-liquid heat exchange device (36), and the reflux line (6) connects the gas-liquid heat exchange
The fluid passage of device (36) exports, and the air flue entrance of the gas-liquid heat exchange device (36) connects the TEG dehydration device (2)
The air passage outlet of gas outlet, the gas-liquid heat exchange device (36) connects the exhaust pipe (5).
6. the triethylene glycol dehydration and regenerative analogue experimental system according to claim 1 based on medium circulation, is characterized in that:
The TEG dehydration device (2) is provided with absorption tower (21), is disposed with M layers of sieve plate from top to bottom in the absorption tower (21),
Every layer of sieve plate is provided with the sieve pore of array distribution；
It is gas outlet at the top of the absorption tower (21), triethylene glycol lean solution entrance is arranged in absorption tower (21) top, and position is high
In the sieve plate of top layer, absorption tower (21) lower part is provided with air inlet and triethylene glycol rich solution outlet, the position of the two
It is below the sieve plate of the bottom, absorption tower (21) bottom is provided with sewage draining exit；
The air inlet of the absorption tower (21) is connected with the gas outlet of filter separator (22), the filter separator (22) into
Port connects the gas outlet of the source of purified water (14), and filter separator (22) bottom is provided with sewage draining exit.
7. the triethylene glycol dehydration and regenerative analogue experimental system according to claim 1 based on medium circulation, is characterized in that:
The TEG dehydration device (2) and triethylene glycol regenerating unit (3) are fixedly installed on backboard (8).
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