CN209123935U - A kind of dry cooling device of active-carbon bed safety - Google Patents
A kind of dry cooling device of active-carbon bed safety Download PDFInfo
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- CN209123935U CN209123935U CN201821765425.1U CN201821765425U CN209123935U CN 209123935 U CN209123935 U CN 209123935U CN 201821765425 U CN201821765425 U CN 201821765425U CN 209123935 U CN209123935 U CN 209123935U
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Abstract
The utility model discloses a kind of active-carbon bed dry cooling device of safety, the organic gas adsorbent bed that the safe mating servo of device for drying and cooling uses steam to be directly desorbed, including gas cooler, gas heater, circulating fan and several valves.After organic gas adsorbent bed completes steam heating desorption, the circulation loop including dry adsorbent bed to be cooled, gas cooler, circulating fan and gas heater is formed by valve transfer, it is dry and cooling that sealing and circulating is completed in circulation loop, it is dry not enough to avoid layer of charcoal caused by when air open-circuit purging is dry cooling after previous direct steam regenerates, the problems such as fire that secondary pollution and the open circuit air streams contact hotbed of carbon may cause, improve effective absorption displacement volume of steam regeneration activated carbon adsorption system.
Description
Technical field
The utility model belongs to environmental protection, chemical industrial field, and in particular to a kind of active-carbon bed dress dried safely
It sets.
Background technique
Organic matter in activated carbon adsorption, water vapour desorption Recovery Purifying gas is at home and abroad widely used.
By steam to the heating for the active carbon for having adsorbed quantity of organic, purging and metathesis, can will be adsorbed in absorption phase
Organic matter in adsorbent is desorbed out, and water vapour and organic steam are connected to condenser condensation liquefaction, to complete organic
The desorption work of object.Since the charcoal bed tempertaure after desorption is high, and contain a large amount of steam, usually cannot be used directly for next stage
Absorption, it is therefore desirable to carry out drop gently dried water removal.
Current main mode is to be passed through hot-air or air and directly open a way to purge to be dried and cool down.Early stage is due to work
Property charcoal adsorption cleaning gas based on hydro carbons especially arene, the absorption potential of itself is larger, and be mainly used for usually
Concentration is in several grams/m3The recycling of above high concentration organic gas, although after steam regeneration the displacement volume of active carbon with it is fresh
Charcoal is compared to there is biggish decline, but since the concentration of gas to be processed is higher, absorption potential is relatively large, and this kind of highly concentrated have
Machine object has certain ability with steam competitive Adsorption, therefore displacement volume still may be designed as 10% or more under normal circumstances,
And absorbing, recovering and purifying system normal operation can be kept.But with the raising of environmental protection requirement and with active-carbon bed adsorption recovery
The expansion of organism kinds range and occasion, many steam regeneration activated carbon adsorption purification recovery devices expose in practical applications
Many problems, are in particular in the following aspects: (1) fire risk of charcoal bed.It is many due to the extension of application
Application containing ketone is exited when steam heating carries out air stripping in charcoal bed and ignition issues occurs.The reason is that just exiting
Steam-heated charcoal bed tempertaure is higher, when being continually fed into air, if there are be easy to when some combustible materials or hot spot for layer of charcoal
It is ignited and since oxygen is constantly introduced into, the extent of injury increases.(2) secondary pollution.In existing system, layer of charcoal is begun to cool
Initial stage, purging air can carry a large amount of steam and a certain amount of organic matter discharge, due to containing vapour quantity it is big, if access
To the entrance of adsorption system, load impact will be caused to the adsorption system being currently running, and direct emission in many cases will
The uncontrollable discharge for forming certain time, causes secondary pollution.(3) charcoal bed band water and water rem oval be not high.It is directly empty with environment
Gas is purged, and because of cooling effect meeting so that more water can not be removed from layer of charcoal, and uses the side of hot-air open circuit purging
Formula can also increase the risk of kindling and increase secondary pollution discharge in addition to energy consumption.At present using surrounding air and heating air group
The support that the drying type of cooling of conjunction needs theory and practice experience could preferably design corresponding operation program and cut
It changes a little, technical difficulty is big, and equally there is security risk.
Utility model content
For the above-mentioned problems in the prior art, the utility model provides a kind of active-carbon bed dress dried safely
It sets, by increasing circulating-heating and condensing circuit, can effectively solve current steam regeneration activated charcoal ribbon water and possible fire wind
Dangerous problem, to improve effective absorption displacement volume of steam regeneration activated carbon adsorption system.
For this purpose, the utility model uses following technical scheme:
A kind of dry cooling device of active-carbon bed safety, including one or more adsorbent bed, gas cooler, gas in parallel
Body heater, circulating fan and several valves；Described more adsorbent beds in parallel include the first adsorbent bed and the second adsorbent bed and need
More adsorbent beds when wanting, inlet are that polluted gas carrys out gas, and exit is purification gas exhaust；The valve includes the first valve
Door, the second valve, third valve, the 4th valve, the 5th valve, the 6th valve, the 8th valve, the tenth valve；First valve
Door, which is located at polluted gas, to be come between gas and the entrance of the first adsorbent bed, for controlling opening into the polluted gas of the first adsorbent bed
It closes；Second valve, which is located at polluted gas, to be come between gas and the entrance of the second adsorbent bed, enters the second adsorbent bed for controlling
Polluted gas switch；The third valve is located between the outlet of the first adsorbent bed and purification gas exhaust, for controlling
The discharge of gas after the purification of the first adsorbent bed；4th valve is located at the outlet of the second adsorbent bed and purification gas is vented
Between, for controlling the discharge of the gas after the purification of the second adsorbent bed；5th valve, the 6th valve are located at first
Between the entrance of adsorbent bed, the entrance of the second adsorbent bed and the outlet of gas cooler；8th valve, the tenth valve difference
Between the outlet, the outlet of the second adsorbent bed and the entrance of gas heater of the first adsorbent bed；The gas heater
Entrance is connected with the outlet end of circulating fan, the outlet of the arrival end connection gas cooler of circulating fan.
It preferably, further include regeneration steam condenser, vapour source, the 7th valve, the 9th valve, the 11st valve and the tenth
Two valves；7th valve, the 9th valve are located at the interface of the interface of vapour source and the first adsorbent bed, the second adsorbent bed
Between, it is respectively used to control steam and enters the first adsorbent bed, the second adsorbent bed；12nd valve, the 11st valve difference
Between the interface of the first adsorbent bed, the interface of the second adsorbent bed and the entrance of regeneration steam condenser, it is respectively used to control
First adsorbent bed, the second regeneration of adsorbent beds steam pipeline switch.
Preferably, the regeneration steam condenser is equipped with the device of recovered steam desorption and regeneration recycling condensate liquid.
Preferably, the gas cooler is equipped with the device of recycling adsorbent bed drying process condensation of water.
Preferably, first adsorbent bed, the second adsorbent bed and while needing more adsorbent beds are active-carbon bed, bed
Layer is equipped with multi-point equispaced temperature monitoring system, for monitoring overheating.
Preferably, when starting circulating fan, control loop gas flow is that adsorbent equipment design treatment ability corresponds to air quantity
10%-300%, control gas heater Outlet Gas Temperature be 40-100 DEG C；The time of cooling cycle is 5 minutes -200
Minute, adjusting air circulation is the 20%-300% that adsorbent equipment design treatment ability corresponds to air quantity.
Compared with prior art, the utility model has the beneficial effects that
(1) oxygen content if occurring the case where overheating in adsorbent bed, due to being closed-cycle system, in gas
It is limited, while the carbon dioxide that thermal oxidation process generates has smothering action, and can pass through the heating of closing closed-cycle system
Function cools down to bed by condensing function, so that it is guaranteed that the safety of bed.
(2) due to being sealing and circulating condensation, the steam and partial organic substances of dry cooling procedure are in circulation loop
It is condensed after liquefaction and is discharged in condenser, avoid air after previous steam regeneration and directly open a way secondary pollution of purging when drying
Or load impact when being passed through adsorbers in parallel.
(3) by the multi-point monitoring to layer of charcoal temperature, can early detection overheating phenomenon take counter-measure in time, really
Protect the safety of the dry cooling procedure of layer of charcoal.
(4) by increasing circulation loop, heated in sequence, cooling can be realized adequately dry in the case where ensuring safety
With cooling steam regenerated carbon bed, to provide condition for active-carbon bed next round efficient absorption after regeneration.
(5) compared with common hot-air is dry, there is safety, without secondary emission, the advantages of low energy consumption.
Detailed description of the invention
Fig. 1 is the structure composition schematic diagram of the active-carbon bed device dried safely of one kind provided by the utility model.
Description of symbols: 1, polluted gas carrys out gas；2, purification gas is vented；3, the first adsorbent bed；4, the second adsorbent bed；
5, regeneration steam condenser；6, gas cooler；7, gas heater；8, circulating fan；9, steam desorption and regeneration recycling condensation
Liquid；10, adsorbent bed drying process condensation of water；11, vapour source；12, the first valve；13, the second valve；14, third valve；
15, the 4th valve；16, the 5th valve；17, the 6th valve；18, the 7th valve；19, the 8th valve；20, the 9th valve；21,
Ten valves；22, the 11st valve；23, the 12nd valve.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in detail the utility model, specific embodiment therein and says
It is bright to be only used to explain the utility model, but be not intended to limit the scope of the present invention.
As shown in Figure 1, the utility model discloses a kind of active-carbon bed dry device safely, including one or more simultaneously
Join adsorbent bed, gas cooler 6, gas heater 7, circulating fan 8 and several valves；The more adsorbent beds in parallel include the
One adsorbent bed 3 and the second adsorbent bed 4 and while needing more adsorbent beds, inlet are that polluted gas carrys out gas 1, and exit is purification
Gas exhaust 2；The valve include the first valve 12, the second valve 13, third valve 14, the 4th valve 15, the 5th valve 16,
6th valve 17, the 8th valve 19, the tenth valve 21；First valve 12 is located at polluted gas and comes gas 1 and the first adsorbent bed 3
Entrance between, for control enter the first adsorbent bed 3 polluted gas switch；Second valve 13 is located at polluted gas
Come between gas 1 and the entrance of the second adsorbent bed 4, for controlling the switch for entering the polluted gas of the second adsorbent bed 4；The third
Valve 14 is located between the outlet of the first adsorbent bed 3 and purification gas exhaust 2, for controlling after the purification of the first adsorbent bed 3
The discharge of gas；4th valve 15 is located between the outlet of the second adsorbent bed 4 and purification gas exhaust 2, for controlling warp
Cross the discharge of gas after the second adsorbent bed 4 purifies；5th valve 16, the 6th valve 17 are located at the first adsorbent bed 3
Between entrance, the entrance of the second adsorbent bed 4 and the outlet of gas cooler 6；8th valve 19, the tenth valve 21 distinguish position
Between the outlet, the outlet of the second adsorbent bed 4 and the entrance of gas heater 7 of the first adsorbent bed 3；The gas heater 7
Entrance be connected with the outlet end of circulating fan 8, the outlet of the arrival end of circulating fan 8 connection gas cooler 6.
It specifically, further include regeneration steam condenser 5, vapour source 11, the 7th valve 18, the 9th valve 20, the 11st valve
The 22 and the 12nd valve 23 of door；7th valve 18, the 9th valve 20 are located at connecing for vapour source 11 and the first adsorbent bed 3
Mouthful, between the interface of the second adsorbent bed 4, be respectively used to control steam and enter the first adsorbent bed 3, the second adsorbent bed 4；Described tenth
Two valves 23, the 11st valve 22 are located at the interface mouth and regeneration steam of the interface of the first adsorbent bed 3, the second adsorbent bed 4
Between the entrance of condenser 5, be respectively used to control the first adsorbent bed 3,4 regeneration steam of the second adsorbent bed pipeline switch.
Specifically, the regeneration steam condenser 5 is equipped with the device of recovered steam desorption and regeneration recycling condensate liquid 9.
Specifically, the gas cooler 6 is equipped with the device of recycling adsorbent bed drying process condensation of water 10.
Specifically, the bed of first adsorbent bed 3, the second adsorbent bed 4 and while needing more adsorbent beds is equipped with multiple spot
Uniformly distributed temperature monitoring system, for monitoring overheating.
Specifically, when starting circulating fan 8, control loop gas flow is that adsorbent equipment design treatment ability corresponds to air quantity
10%-300%, control gas heater 7 Outlet Gas Temperature be 40-100 DEG C；The time of cooling cycle be 5 minutes-
200 minutes, adjusting air circulation was the 20%-300% that adsorbent equipment design treatment ability corresponds to air quantity.
Embodiment
A kind of application method of the active-carbon bed device dried safely is as follows:
Normal absorption: for the first adsorbent bed 3, the 5th valve 16, the 7th valve 18, the 8th valve the 19, the tenth are closed
Two valves 23 are opened the first valve 12, third valve 14, are adsorbed；For the second adsorbent bed 4, the 6th valve 17, the are closed
Nine valves 20, the tenth valve 21, the 11st valve 22 are opened the second valve 13, the 4th valve 15, are adsorbed.
Normal steam desorption: for the first adsorbent bed 3, the second valve 13, the 4th valve 15, the 5th valve 16, the are closed
Eight valves 19 start regeneration steam condenser 5, open the 7th valve 18 and the 12nd valve 23, start normal steam desorption；It is right
In the second adsorbent bed 4, the first valve 12, third valve 14, the 6th valve 17, the tenth valve 21 are closed, starting regeneration steam is cold
Condenser 5 opens the 9th valve 20 and the 11st valve 22, starts normal steam desorption.
After the completion of desorption, starts dehydration cooling, be illustrated by taking the first adsorbent bed 3 as an example here.
(1) the first valve 12, third valve 14, the 7th valve 18, the 12nd valve 23 are closed；
(2) start gas cooler 6 and gas heater 7；
(3) the 5th valve 16 and the 8th valve 19 are opened, sealing and circulating circuit is formed；
(4) start circulating fan 8, control loop gas flow is that adsorbent equipment design treatment ability corresponds to the 10% of air quantity
To 300%；
(5) Outlet Gas Temperature for controlling gas heater 7 is 40-100 DEG C；
(6) after recycling -200 minutes 5 minutes, gas heater 7 is closed, adjusting air circulation is adsorbent equipment design treatment
Ability corresponds to 20% to the 300% of air quantity, completes cooling work.
Wherein, the bed of the first adsorbent bed 3 and the second adsorbent bed 4 is equipped with multi-point equispaced temperature monitoring system, can effectively supervise
Overheating is controlled, and ensures the safety of system regeneration process by circulating cooling function.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement and improvement etc., should be included in this reality within the spirit and spirit of utility model
Within novel protection scope.
Claims (6)
1. a kind of dry cooling device of active-carbon bed safety, including one or more adsorbent bed in parallel, gas cooler (6),
Gas heater (7), circulating fan (8) and several valves, it is characterised in that: described more adsorbent beds in parallel include the first absorption
Bed (3) and the second adsorbent bed (4) and while needing more adsorbent beds, inlet are that polluted gas comes gas (1), and exit is to purify
Gas exhaust (2)；The valve include the first valve (12), the second valve (13), third valve (14), the 4th valve (15),
5th valve (16), the 6th valve (17), the 8th valve (19), the tenth valve (21)；First valve (12) is located at pollution
Gas comes between gas (1) and the entrance of the first adsorbent bed (3), for controlling opening into the polluted gas of the first adsorbent bed (3)
It closes；Second valve (13) is located at polluted gas and comes between gas (1) and the entrance of the second adsorbent bed (4), enters for controlling
The switch of the polluted gas of second adsorbent bed (4)；The third valve (14) is located at the outlet and purified gas of the first adsorbent bed (3)
Body is vented between (2), for controlling the discharge of the gas after the first adsorbent bed (3) purification；4th valve (15) is located at
Between the outlet of second adsorbent bed (4) and purification gas exhaust (2), for controlling the gas after the second adsorbent bed (4) purification
Discharge；5th valve (16), the 6th valve (17) are located at the entrance of the first adsorbent bed (3), the second adsorbent bed (4)
Entrance and gas cooler (6) outlet between；8th valve (19), the tenth valve (21) are located at the first absorption
Between the bed outlet of (3), the outlet of the second adsorbent bed (4) and the entrance of gas heater (7)；The gas heater (7)
Entrance is connected with the outlet end of circulating fan (8), the outlet of arrival end connection gas cooler (6) of circulating fan (8).
2. the dry cooling device of the active-carbon bed safety of one kind according to claim 1, it is characterised in that: further include regeneration
Steam condenser (5), vapour source (11), the 7th valve (18), the 9th valve (20), the 11st valve (22) and the 12nd valve
(23)；7th valve (18), the 9th valve (20) are located at the interface of vapour source (11) and the first adsorbent bed (3),
Between the interface of two adsorbent beds (4), it is respectively used to control steam and enters the first adsorbent bed (3), the second adsorbent bed (4)；Described
12 valves (23), the 11st valve (22) be located at the interface of the first adsorbent bed (3), the second adsorbent bed (4) interface with
Between the entrance of regeneration steam condenser (5), it is respectively used to control the first adsorbent bed (3), the second adsorbent bed (4) regeneration steam pipe
The switch on road.
3. the dry cooling device of the active-carbon bed safety of one kind according to claim 2, it is characterised in that: the regeneration is steamed
Vapour condenser (5) is equipped with the device of recovered steam desorption and regeneration recycling condensate liquid (9).
4. the dry cooling device of the active-carbon bed safety of one kind according to claim 1, it is characterised in that: the gas is cold
But device (6) is equipped with the device of recycling adsorbent bed drying process condensation of water (10).
5. the dry cooling device of the active-carbon bed safety of one kind according to any one of claim 1 to 4, feature exist
In: the bed of first adsorbent bed (3), the second adsorbent bed (4) and while needing more adsorbent beds is equipped with multi-point equispaced temperature
Monitoring system is spent, for monitoring overheating.
6. the dry cooling device of the active-carbon bed safety of one kind according to claim 5, it is characterised in that: starting circulated air
When machine (8), control loop gas flow is the 10%-300% that adsorbent equipment design treatment ability corresponds to air quantity, and control gas adds
The Outlet Gas Temperature of hot device (7) is 40-100 DEG C；The time of cooling cycle is -200 minutes 5 minutes, adjusts air circulation and is
Adsorbent equipment design treatment ability corresponds to the 20%-300% of air quantity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821765425.1U CN209123935U (en) | 2018-10-30 | 2018-10-30 | A kind of dry cooling device of active-carbon bed safety |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821765425.1U CN209123935U (en) | 2018-10-30 | 2018-10-30 | A kind of dry cooling device of active-carbon bed safety |
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| CN209123935U true CN209123935U (en) | 2019-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158085A (en) * | 2018-10-30 | 2019-01-08 | 南京兆博环保科技有限公司 | A kind of dry cooling device and method of active-carbon bed safety |
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2018
- 2018-10-30 CN CN201821765425.1U patent/CN209123935U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158085A (en) * | 2018-10-30 | 2019-01-08 | 南京兆博环保科技有限公司 | A kind of dry cooling device and method of active-carbon bed safety |
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