CN205759815U - A kind of condensate disposal systems of organic exhaust gas - Google Patents
A kind of condensate disposal systems of organic exhaust gas Download PDFInfo
- Publication number
- CN205759815U CN205759815U CN201620501659.XU CN201620501659U CN205759815U CN 205759815 U CN205759815 U CN 205759815U CN 201620501659 U CN201620501659 U CN 201620501659U CN 205759815 U CN205759815 U CN 205759815U
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- CN
- China
- Prior art keywords
- icing fluid
- segregation apparatus
- exhaust gas
- organic exhaust
- disposal systems
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
This utility model provides the condensate disposal systems of a kind of organic exhaust gas, including the pretreatment unit being sequentially connected with, anti-icing fluid volatilization case and cold cooling unit, pending waste gas enters described anti-icing fluid volatilization case after described pretreatment unit pretreatment, in described anti-icing fluid volatilization case, there is anti-icing fluid, described anti-icing fluid volatilizes anti-icing fluid steam and mixes with pending waste gas, and the pending waste gas being mixed with anti-icing fluid steam enters described cold cooling unit.Use this utility model, it is possible to organic exhaust gas is cooled to less than 0 DEG C and frost-free, it is achieved continuous condensation process, low cost, energy consumption are the lowest.
Description
Technical field
This utility model relates to the condensate disposal systems of a kind of organic exhaust gas.
Background technology
Currently for the condensation process equipment of organic exhaust gas, the overwhelming majority is all will by heat exchanger or vaporizer
Gas temperature is cooled to close to 0 DEG C, but typically will not be cooled to less than 0 DEG C, especially handled organic waste
When gas is very poor with the intermiscibility of water, because condensing to less than the 0 DEG C water vapour condensation knot being necessary for solving in air
The problem of frost.Water vapour condensation frosting can be attached to heat exchanger surface seriously reduce heat exchanger heat exchange efficiency,
Increasing windage, increasing over time frosting degree can be increasingly severe, and ultimately resulting in processing equipment can not transport
OK, even damage equipment.A lot of organic exhaust gas are cooled to 0 DEG C, and the concentration of organic solvent contained by it is the highest,
So the effect of exhaust-gas treatment is the most undesirable.Gas can be cooled to the processing equipment of less than 0 DEG C at present, its
Groundwork mode has two kinds: 1, service intermittent, after equipment frosting to a certain extent, stops cooling, right
Equipment carries out the defrosting that heats up, and defrosting terminates to carry out condensing work again, and this planning device can not run continuously, energy
Consumption height；2, two groups or more condensation process equipment is alternately cooled and defrosts, and this scheme can realize continuous cold
Solidifying process, but control is complicated, cost is high, energy consumption is the highest.
Utility model content
Technical problem to be solved in the utility model is, it is provided that the condensate disposal systems of a kind of organic exhaust gas,
Organic exhaust gas can be cooled to less than 0 DEG C and frost-free.
In order to solve above-mentioned technical problem, this utility model provides the condensate disposal systems of a kind of organic exhaust gas,
It includes pretreatment unit, anti-icing fluid volatilization case and cold cooling unit, the pending waste gas being sequentially connected with
After described pretreatment unit pretreatment, enter described anti-icing fluid volatilization case, have in described anti-icing fluid volatilization case
Anti-icing fluid, described anti-icing fluid volatilizes anti-icing fluid steam and mixes with pending waste gas, is mixed with anti-icing fluid steam
Pending waste gas enter described cold cooling unit.
As preferred scheme, described cold cooling unit is provided with liquid storage district, air inlet area, cold from bottom to up
But district, except fog-zone and exhaust area, described air inlet area is provided with and the described anti-icing fluid volatilization air inlet that is connected of case,
Described exhaust area is provided with air vent, and described liquid storage district is provided with leakage fluid dram, and described cooling zone is provided with cooler, institute
State except fog-zone is provided with demister.
As preferred scheme, water washing device that described condensate disposal systems also includes being sequentially connected with, first point
From device and the second segregation apparatus, described water washing device is connected with the leakage fluid dram in described liquid storage district, described storage
Solution in liquid zone enters described water washing device through described leakage fluid dram, and solution mixes with the water in described water washing device
Enter described first segregation apparatus after conjunction and carry out first separation, isolate solvent and anti-icing fluid aqueous solution, described
Anti-icing fluid aqueous solution enters described second segregation apparatus and carries out secondary separation, isolates anti-icing fluid and water.
As preferred scheme, described condensate disposal systems also includes cold energy reclamation device, described cold recovery
Device is connected with the air vent of described exhaust area.
As preferred scheme, it is provided with between described water washing device, the first segregation apparatus and the second segregation apparatus
Heat exchanger, described heat exchanger includes coolant guiding channel and heat transfer medium channels, described coolant guiding channel
One end is connected with described first segregation apparatus, and the other end of described coolant guiding channel separates dress with described second
Putting connection, one end of described heat transfer medium channels is connected with described second segregation apparatus, and described heat transfer medium leads to
The other end in road is connected with described water washing device.
As preferred scheme, described first segregation apparatus is provided with solvent recovery outlet.
As preferred scheme, described second segregation apparatus is provided with antifreeze with what described anti-icing fluid volatilization case was connected
Liquid reclaims outlet.
As preferred scheme, it is provided with for monitoring between described first segregation apparatus and the second segregation apparatus
State the concentration monitoring device of anti-icing fluid concentration of aqueous solution.
As preferred scheme, it is provided with for water described in management and control between described water washing device and the second segregation apparatus
The drain pipe of liquid level in cleaning device.
As preferred scheme, described anti-icing fluid volatilization case is provided with anti-icing fluid filler.
Implement the condensate disposal systems of a kind of organic exhaust gas of the present utility model, compared with prior art, tool
Have the advantages that: owing to pending waste gas is previously joined at the cold cooling unit entering into less than 0 DEG C
Anti-icing fluid steam, this anti-icing fluid steam during follow-up cooling together with the solvent contained by pending waste gas and
Water condenses together, and is dissolved in the water formation freezing point aqueous solution less than target chilling temperature mutually, it is thus possible to
Enough organic exhaust gas is cooled to less than 0 DEG C and frost-free, it is achieved continuous condensation process, low cost, energy consumption are the lowest.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below by the accompanying drawing to embodiment
It is briefly described.
Fig. 1 is the structural representation of the condensate disposal systems of a kind of organic exhaust gas of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
As it is shown in figure 1, preferred embodiment of the present utility model, the condensate disposal systems of a kind of organic exhaust gas,
It includes pretreatment unit 10, anti-icing fluid volatilization case 11 and the cold cooling unit 20 being sequentially connected with, and treats
Process waste gas after the pretreatment of described pretreatment unit 10, enter described anti-icing fluid volatilization case 11, described anti-icing fluid
Having anti-icing fluid in volatilization case 11, described anti-icing fluid volatilizes anti-icing fluid steam and mixes with pending waste gas, mixed
Close and have the pending waste gas of anti-icing fluid steam to enter described cold cooling unit 20.Its operation principle is: according to
Solvent-laden characteristic in pending waste gas, pending waste gas enter into the cold cooling unit of less than 0 DEG C with
Before, in pending waste gas, adding anti-icing fluid steam through anti-icing fluid volatilization case 11, this anti-icing fluid steam is follow-up
Condense together with water together with the solvent contained by pending waste gas during cooling, and be dissolved in water formation mutually
Freezing point is less than the aqueous solution of target chilling temperature such that it is able to organic exhaust gas is cooled to less than 0 DEG C and does not ties
Frost, it is achieved condensation process continuously, low cost, energy consumption are the lowest.
Below, as a example by carrying out condensation at low temperature process containing trichloroethylene waste gas, to organic waste of the present utility model
The condensate disposal systems of gas elaborates:
Trichloro ethylene is optimal degreasing metal lotion, water insoluble, is mainly used in colour TV, electric refrigerator, vapour
The industries such as car, air-conditioning, precision optical machinery, microelectronics make the abluent of metal parts, electronic component.This enforcement
Mode is that the prime of the waste gas for the high concentration trichloro ethylene produced in accumulator PE dividing plate production process reclaims
Process.
Pending waste gas is the waste gas containing trichloro ethylene, and discharge exhaust gas concentration is about 15000PPM, about 91000
Mg/m3, target chilling temperature-45 DEG C, select methanol as anti-icing fluid.Saturated concentration at-45 DEG C of methanol is
1900mg/m3, trichloro ethylene is 9000mg/m3.Methanol partition coefficient in water is far above it in trichlorine
Value in ethylene.Methanol does not have adverse chemical and reacts with trichloro ethylene, water etc..The boiling point of methanol is 64.5 DEG C
And with water not azeotropic.
The job step of the condensate disposal systems of organic exhaust gas of the present utility model includes the following:
Step one, pending waste gas first passes around pretreatment unit 10 by blower fan traction, carries out filtering, in advance
Cold wait process to be cooled to close to 0 DEG C, enter anti-icing fluid volatilization case 11, produce if any condensed water herein and need individually
Discharge.
Step 2, through anti-icing fluid volatilization case 11, described pending waste gas volatilizees in case with being distributed in anti-icing fluid
Anti-icing fluid steam after, enter cold cooling unit 20.
It should be noted that this anti-icing fluid volatilization case 11 can be a kind of simple vapor-liquid contacting apparatus.Antifreeze
Liquid, is methanol herein, evaporates into steam in being distributed in anti-icing fluid volatilization case 11 after pending exhaust gas contact,
It is mixed in pending waste gas.Described anti-icing fluid steam and described pending waste gas will not occur chemical reaction.
Step 3, the pending waste gas being mixed with anti-icing fluid steam is gradually cooled to mesh through cold cooling unit 20
Mark chilling temperature；During cooling, this pending waste gas has condensed fluid and condenses, and obtains clean
Gas；Wherein, described condensed fluid comprises water, solvent (i.e. trichloro ethylene) and anti-icing fluid (i.e. methanol),
Described solvent is immiscible with water or intermiscibility is poor, and described anti-icing fluid is molten with aqueous phase and forms freezing point less than target
The aqueous solution of condensation temperature.
When being embodied as, described cold cooling unit 20 be provided with from bottom to up liquid storage district 24, air inlet area 21,
Cooling zone 22, except fog-zone 23 and exhaust area 25, described air inlet area 21 be provided with and described anti-icing fluid volatilization case
11 air inlets connected, described exhaust area 25 is provided with air vent, and described liquid storage district 24 is provided with leakage fluid dram, institute
State cooling zone 22 and be provided with cooler, described be provided with demister except fog-zone 23.So, pending waste gas is by low
The bottom of temperature chiller 20 enters, and discharges from top.Air inlet area 21 makes pending waste gas through supercooling
Can be uniformly distributed before district 22.The windward side of the cooler in cooling zone 22 is vertical with the flow direction of pending waste gas
Directly, pending waste gas is vertically through cooler and cooling medium heat exchange, and the cooler in cooling zone 22 can be
One group of pipe wing heat exchanger or vaporizer.Pending waste gas the cooler in cooling zone 22 be by lower and
On gradually cool down, the top at cooler obtains lowest temperature, gas-cooled during can constantly have
Liquid condenses, and condensed fluid is moved downward along cooler by action of gravity, flows ultimately into sub-cooled dress
In the liquid storage district 24 of the bottom putting 20.Condensed fluid can be pending with flow up during moving downward
Gas generation heat transfer, its temperature gradually rises, so there will be no the possibility of frosting.With cooler
-40 DEG C-45 DEG C of top temperature range as a example by, the condensation number of the every cubic meter of gas methanol in this interval can reach
To 1100mg, and the condensation number of water just 50mg, will not solidify at-45 DEG C of trichloro ethylenes itself, and methanol-water
When the mass concentration of solution is 50%, its freezing point just can reach-54 DEG C, therefore condensed fluid in this interval
Will not frosting, condensed fluid the process moved downward due to temperature gradually rises more will not frosting.
Step 4, the clean gas obtained in described step 3 is after the air vent of exhaust area 25 enters gas
Continuous treatment process, the condensed fluid obtained in described step 3 is follow-up through the leakage fluid dram entrance condensed fluid in liquid storage district 24
Treatment process.
It should be noted that in described step 4, the described clean gas air vent through exhaust area 25 enters
Before gas subsequent treatment operation, need to be through being dried process except the demister in fog-zone 23, in case liquid stopping clamp
Band is discharged.Owing to its temperature of gas through cold cooling unit 20 is the lowest, the most described gas subsequent treatment
Operation at least includes the cold recovery stage, need to reclaim cold to reduce cooling energy through cold energy reclamation device 70
Consumption, in the present embodiment, this cold energy reclamation device 70 is connected with the air vent of exhaust area 25.Again owing to passing through
The most substantial amounts of trichloro ethylene of gas after condensation at low temperature processes has been condensed recovery, and VOC content is the most significantly
Reducing, available absorption process, absorption method etc. process further with qualified discharge.
The condensed fluid collected in liquid storage district 24, its main component is trichloro ethylene, water and methanol, for it is each
Composition separates, and need to carry out condensed fluid subsequent treatment operation, and described condensed fluid subsequent treatment operation is wrapped successively
Including water rinses, first separation stage and secondary separation stage, its corresponding equipment is the water being sequentially connected with
Cleaning device the 30, first segregation apparatus 40 and the second segregation apparatus 60, water washing device 30 and liquid storage district 24
Leakage fluid dram connect.When being embodied as, condensed fluid is entered in water washing device 30, mix with relatively great amount of water
Enter the first segregation apparatus 40 (such as gravitational separation device) after closing uniformly and carry out first separation, due to three chloroethenes
Alkene is immiscible with water, and the partition coefficient that methanol is in water is far above its partition coefficient in trichloro ethylene,
Be equivalent to, with the methanol in relatively great amount of water extraction trichloro ethylene, finally isolate from the first segregation apparatus 40
Trichloro ethylene and the aqueous solution of methanol, isolating its methanol content of trichloro ethylene can be the lowest, can the most again
Secondary use.Reclaim for convenience of solvent (i.e. trichloro ethylene) and utilize, the first segregation apparatus 40 being arranged molten
Outlet is reclaimed in agent.From the first isolated methanol aqueous solution of segregation apparatus 40, need to enter the second segregation apparatus
60 carry out secondary separation, due to the boiling point of methanol and the boiling point of water is different and with water not azeotropic, this second separate
Device 60 is preferably distilling apparatus, and the methanol that separated goes out imports anti-icing fluid volatilization case 11 and recycles.
Reclaim for convenience of anti-icing fluid (i.e. methanol) and utilize, the second segregation apparatus 60 being arranged and volatilizees with anti-icing fluid
The anti-icing fluid that case 11 connects reclaims outlet.Distill remaining water, discharge according to the liquid level in water washing device 30
A part of water, this part water yield enters water washing device equal to the water content in condensed fluid before washing, remaining water
30, continue on for follow-up extraction, so circulate.
For reducing distillation energy consumption, entering the second separation from the first isolated methanol aqueous solution of segregation apparatus 40
Device 60 (i.e. distilling apparatus) is front can carry out heat exchange by heat exchanger 50 with distilling remaining water.Namely warp
Methanol aqueous solution after first separation is carried out as heat transfer medium with the water after secondary separation as cooling medium
Heat exchange, the methanol aqueous solution after first separation enters the second segregation apparatus 60 (i.e. distilling apparatus) after heating up,
Recycling or qualified discharge in water washing device 30 is sent back to after water for cooling after secondary separation.When being embodied as,
Described heat exchanger 50 be arranged at described water washing device the 30, first segregation apparatus 40 and the second segregation apparatus 60 it
Between, described heat exchanger 50 includes coolant guiding channel 51 and heat transfer medium channels 52, and described cooling medium leads to
The one end in road 51 is connected with described first segregation apparatus 40, the other end of described coolant guiding channel 51 and institute
State the second segregation apparatus 60 to connect, one end of described heat transfer medium channels 52 and described second segregation apparatus 60
Connecting, the other end of described heat transfer medium channels 52 is connected with described water washing device 30.
More preferably, on the connection pipeline between described water washing device 30 and the second segregation apparatus 60, connection has row
Water pipe 80, this drain pipe 80 liquid level in water washing device described in management and control.Thus, the water that system is unnecessary can lead to
Cross this drain pipe 80 qualified discharge.
Owing to a small amount of methanol also can be taken away from cold cooling unit 20 expellant gas, in causing whole system
The amount of methanol can persistently reduce, and therefore also needs to continue or regularly supplement a certain amount of in anti-icing fluid volatilization case 11
Methanol.In the present embodiment, described anti-icing fluid volatilization case 11 is provided with anti-icing fluid filler, separates described first
Between device 40 and the second segregation apparatus 60, concentration monitoring device 90 is set, enters keeping entrance water washing device 30
In the case of the constant flow of the water of row extraction, monitoring is from the first isolated methanol aqueous solution of segregation apparatus 40
Concentration, be assured that the magnitude of recruitment of methanol according to this concentration value, and be controlled by.
Above disclosed only preferred embodiment of the present utility model, can not limit this with this certainly
The interest field of utility model, the equivalent variations therefore made according to this utility model claim, still belong to
The scope that this utility model is contained.
Claims (10)
1. the condensate disposal systems of an organic exhaust gas, it is characterised in that include the pretreatment dress being sequentially connected with
Put, anti-icing fluid volatilizees case and cold cooling unit, and pending waste gas is after described pretreatment unit pretreatment
Entering described anti-icing fluid volatilization case, have anti-icing fluid in described anti-icing fluid volatilization case, described anti-icing fluid volatilizes
Anti-icing fluid steam mixes with pending waste gas, and the pending waste gas being mixed with anti-icing fluid steam enters described low temperature
Chiller.
2. the condensate disposal systems of organic exhaust gas as claimed in claim 1, it is characterised in that described low temperature
Chiller be provided with from bottom to up liquid storage district, air inlet area, cooling zone, except fog-zone and exhaust area, described
Air inlet area is provided with the air inlet being connected with described anti-icing fluid volatilization case, and described exhaust area is provided with air vent, described
Liquid storage district is provided with leakage fluid dram, and described cooling zone is provided with cooler, described is provided with demister except fog-zone.
3. the condensate disposal systems of organic exhaust gas as claimed in claim 2, it is characterised in that also include depending on
The water washing device of secondary connection, the first segregation apparatus and the second segregation apparatus, described water washing device and described storage
The leakage fluid dram of liquid zone connects, and the solution in described liquid storage district enters described water washing device through described leakage fluid dram, molten
Liquid enters described first segregation apparatus and carries out first separation after mixing with the water in described water washing device, isolate
Solvent and anti-icing fluid aqueous solution, described anti-icing fluid aqueous solution enters described second segregation apparatus and carries out secondary separation,
Isolate anti-icing fluid and water.
4. the condensate disposal systems of organic exhaust gas as claimed in claim 2, it is characterised in that also include cold
Amount retracting device, described cold energy reclamation device is connected with the air vent of described exhaust area.
5. the condensate disposal systems of organic exhaust gas as claimed in claim 3, it is characterised in that described washing
Being provided with heat exchanger between device, the first segregation apparatus and the second segregation apparatus, described heat exchanger includes that cooling is situated between
Matter passage and heat transfer medium channels, one end of described coolant guiding channel is connected with described first segregation apparatus,
The other end of described coolant guiding channel is connected with described second segregation apparatus, the one of described heat transfer medium channels
End is connected with described second segregation apparatus, and the other end of described heat transfer medium channels is connected with described water washing device.
6. the condensate disposal systems of organic exhaust gas as claimed in claim 3, it is characterised in that described first
Segregation apparatus is provided with solvent recovery outlet.
7. the condensate disposal systems of organic exhaust gas as claimed in claim 3, it is characterised in that described second
Segregation apparatus is provided with the anti-icing fluid being connected with described anti-icing fluid volatilization case and reclaims outlet.
8. the condensate disposal systems of organic exhaust gas as claimed in claim 3, it is characterised in that described first
The concentration monitor for monitoring described anti-icing fluid concentration of aqueous solution it is provided with between segregation apparatus and the second segregation apparatus
Device.
9. the condensate disposal systems of organic exhaust gas as claimed in claim 3, it is characterised in that described washing
The drain pipe of liquid level in water washing device described in management and control it is provided with between device and the second segregation apparatus.
10. the condensate disposal systems of the organic exhaust gas as described in any one of claim 1 to 9, its feature exists
In, described anti-icing fluid volatilization case is provided with anti-icing fluid filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501659.XU CN205759815U (en) | 2016-05-26 | 2016-05-26 | A kind of condensate disposal systems of organic exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501659.XU CN205759815U (en) | 2016-05-26 | 2016-05-26 | A kind of condensate disposal systems of organic exhaust gas |
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| Publication Number | Publication Date |
|---|---|
| CN205759815U true CN205759815U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620501659.XU Expired - Fee Related CN205759815U (en) | 2016-05-26 | 2016-05-26 | A kind of condensate disposal systems of organic exhaust gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693594A (en) * | 2016-12-29 | 2017-05-24 | 龙伍洋 | Waste gas treatment method and system |
| CN107949078A (en) * | 2018-01-09 | 2018-04-20 | 广东环葆嘉节能科技有限公司 | The double heating control apparatus of move media |
| CN109224494A (en) * | 2017-07-11 | 2019-01-18 | 深圳市瑞能实业股份有限公司 | gas-liquid separator |
-
2016
- 2016-05-26 CN CN201620501659.XU patent/CN205759815U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693594A (en) * | 2016-12-29 | 2017-05-24 | 龙伍洋 | Waste gas treatment method and system |
| CN109224494A (en) * | 2017-07-11 | 2019-01-18 | 深圳市瑞能实业股份有限公司 | gas-liquid separator |
| CN107949078A (en) * | 2018-01-09 | 2018-04-20 | 广东环葆嘉节能科技有限公司 | The double heating control apparatus of move media |
| CN107949078B (en) * | 2018-01-09 | 2024-05-14 | 广东环葆嘉节能科技有限公司 | Moving medium double-heating control device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |