CN108211664A - A kind of organic exhaust gas reclaimer and its application method - Google Patents
A kind of organic exhaust gas reclaimer and its application method Download PDFInfo
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- CN108211664A CN108211664A CN201810115997.3A CN201810115997A CN108211664A CN 108211664 A CN108211664 A CN 108211664A CN 201810115997 A CN201810115997 A CN 201810115997A CN 108211664 A CN108211664 A CN 108211664A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/0072—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of organic exhaust gas reclaimer and its application method, including waste gas pre-treating device, main air blower device, adsorbent equipment, desorption condensing unit, control device；The present invention is by setting the waste gas pre-treating device for the control that cooperates, main air blower device, adsorbent equipment, being desorbed condensing unit, control device, realize high temperature hot nitrogen desorption, cryogenic condensation recycling organic matter, the organic matter water content of recycling is low, does not generate secondary pollution, and operating cost is low；Through collecting the exhaust gas removal rate into system up to more than 95%；Special-purpose activated charcoal is recycled using gas-solvent, the rate of recovery is high, and activated carbon service life is long；PAS nitrogen making machine groups are configured, available for no vapour source occasion.
Description
Technical field
The present invention relates to waste gas recovery fields, refer in particular to a kind of organic exhaust gas reclaimer and its application method.
Background technology
Organic component in exhaust gas is non-methane total hydrocarbons, non-methane hydrocarbon (NMHC) typically refer in addition to methane it is all can
The hydrocarbon (being wherein mainly C2~C8) of volatilization, also known as non-methane total hydrocarbons.NMHC in air is more than a certain concentration, is removed
Outside directly to human health, photochemical fog can also be generated through solar radiation under certain condition, environment and the mankind are made
Into harm.The temperature of organic exhaust gas is about 90~110 DEG C, and organic concentration is 15ppm in exhaust gas（About 60mg/m3）.
Although there is many organic exhaust gas reclaimers in the prior art, most early warning mechanism is incomplete, deposits always
In security risk.
Invention content
The present invention provides a kind of organic exhaust gas reclaimer and its application method, main purpose are to overcome existing organic
The early warning mechanism of waste gas recovery equipment is incomplete, and there are the defects of security risk.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of organic exhaust gas reclaimer, including waste gas pre-treating device, main air blower device, adsorbent equipment, desorption condensing unit,
Control device；
The waste gas pre-treating device include filter, cooler, cooling tower and circulating pump, the filter, cooler according to
Secondary connection；The cooling tower is connect with circulating pump, for being cooled down to the exhaust gas in cooler；It is installed on the filter
There is filter screen crushing detector, be used for when filter screen causes organic exhaust gas pressure change because blocking or rupturing, automatic alarm；
The main air blower device is centrifugal high pressure fan, is used to pump the exhaust gas in the cooler to the adsorbent equipment
It is interior；Pressure monitoring device is installed on the centrifugal high pressure fan, the compression being used in centrifugal high pressure fan is monitored is empty
When atmospheric pressure is less than 6kg/cm2, automatic alarm；
The adsorbent equipment includes three adsorption tanks arranged side by side, is equipped with to adsorb organic exhaust gas in each adsorption tanks
Active carbon bed is additionally provided with oxygen content detector and temperature alarming, interlock system, the temperature alarming, connection in each adsorption tanks
Lock system can when the temperature of active carbon bed is increased to enter risk range automatic alarm, and send a signal to the control
Device processed makes it control the desorption condensing unit action；
The desorption condensing unit includes being sequentially connected the PSA nitrogen generator group connect, condensing mechanism, circulating fan, heater, described
Condensing mechanism is connected with heater with three adsorption tanks；The oxygen content detector detects the weight percentage of oxygen
During more than 5%, start PSA nitrogen generator group, it is made to purge the active carbon bed；The oxygen content detector detects
When the weight percentage of oxygen is less than 3%, PSA nitrogen generator group stops, and is followed in heater and circulating fan progress and at the same time starting
Ring heats.
Further, the high temperature fire sprinkler system being installed in the adsorption tanks outer side edges, the temperature report are further included
Alert, interlock system can send a signal to the control dress when the temperature of active carbon bed rises to over risk range
Putting makes it that the high temperature fire sprinkler system be controlled to sprinkle water towards corresponding adsorption tanks.
Further, urgent air bleeding valve, the pressure monitoring are also communicated between the cooler and centrifugal high pressure fan
Device is when detecting centrifugal high pressure fan overload, automatic alarm, and sending a signal to the control device makes it control institute
Urgent air bleeding valve is stated to discharge organic exhaust gas.
Further, the condensing mechanism includes the connected first-stage condenser of cycle and secondary condenser, the level-one are cold
Condenser connects the PSA nitrogen generator group and circulating fan.
Further, a Cool-water Machine for Industry for being condensed to the organic exhaust gas in the secondary condenser is further included
Group, the Cool-water Machine for Industry group is interior to be equipped with hydraulic pressure detector and temperature detector, which is used to detect industry
Hydraulic pressure deficiency alarm in handpiece Water Chilling Units, the temperature detector are used to detect that the water temperature in Cool-water Machine for Industry group is more than pre-
If it is worth alarm.
Further, the solvent feed tank being connect with the secondary condenser is further included, is used to collect the secondary condenser
Condensed solvent liquid.
Further, the desorption condensing unit further includes pressure gauge and safety dumping pipe, and the pressure gauge is used to detect
Nitrogen pressure in nitrogen transmission pipeline, and when detecting nitrogen overpressure, the control device controls the safety dumping pipe will
Nitrogen is discharged.
A kind of application method of organic exhaust gas reclaimer, includes the following steps：
1) organic exhaust gas is first transmitted to the removal that large granular impurity is carried out in filter, organic exhaust gas continues to be sent to cold later
But less than 40 DEG C are cooled in device；
2) it after organic exhaust gas has cooled down, is pumped via centrifugal high pressure fan to the adsorption tanks for carrying out absorption work, it is organic
Exhaust gas is tightly held by activated carbon in hole when by active carbon bed in adsorption tanks, and wherein reaches the tail of emission request
Gas then drains into air by the floss hole at the top of adsorption tanks；
3) described adsorption tanks absorption a period of time, until the oxygen content detector in it detects that the weight percentage of oxygen is more than
When 5%, control device control PSA nitrogen generator group starts, and nitrogen is made to sequentially pass through condensing mechanism, circulating fan, heater and enters suction
Active carbon bed therein is purged in attached tank；Treat that the oxygen content detector detects that the weight percentage of oxygen is less than
When 3%, PSA nitrogen generator group stops, and at the same time starting circulating-heating in heater and circulating fan progress, makes the nitrogen in it
Gas-solvent can be used as to be regenerated activated carbon；
4) after regenerating active carbon, the organic solvent mixed vapour to get off from active carbon bed surface desorption falls into condensing mechanism condensation
Into solvent liquid, solvent liquid enters solvent feed tank, not solidifying gaseous mixture be then sent to again in circulating fan circulating-heating or into its
The adsorption tanks that it is being adsorbed continue to adsorb.
Compared to the prior art, the advantageous effect that the present invention generates is:
It is the configuration of the present invention is simple, highly practical, by set the waste gas pre-treating device of the control that cooperates, main air blower device,
Adsorbent equipment, desorption condensing unit, control device realize high temperature hot nitrogen desorption, cryogenic condensation recycling organic matter, recycling
Organic matter water content is low, does not generate secondary pollution, and operating cost is low；Through collect into system exhaust gas removal rate up to 95% with
On；Special-purpose activated charcoal is recycled using gas-solvent, the rate of recovery is high, and activated carbon service life is long；PAS nitrogen making machine groups are configured, can use
In no vapour source occasion.
Description of the drawings
Fig. 1 is the workflow block diagram of the present invention.
Fig. 2 is the workflow block diagram of heretofore described waste gas pre-treating device and main air blower device.
Fig. 3 is workflow block diagram one of the heretofore described adsorbent equipment with being desorbed condensing unit.
Fig. 4 is workflow block diagram two of the heretofore described adsorbent equipment with being desorbed condensing unit.
Specific embodiment
Illustrate the specific embodiment of the present invention with reference to the accompanying drawings.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.A kind of organic exhaust gas reclaimer, including waste gas pre-treating device 1, main air blower
Device 2, adsorbent equipment 3, desorption condensing unit 4, control device 5；Wherein,
Waste gas pre-treating device 1 includes filter 11, cooler 12, cooling tower 13 and circulating pump 14, filter 11, cooler
12 are sequentially connected；Cooling tower 13 is connect with circulating pump 14, for being cooled down to the exhaust gas in cooler 12；On filter 11
Filter screen crushing detector 15 is installed with, is used for when filter screen causes organic exhaust gas pressure change because blocking or rupturing, from
Dynamic alarm, operating personnel must replace filter screen in time；
Main air blower device 2 is centrifugal high pressure fan 21, is used to pump the exhaust gas in cooler 12 to adsorbent equipment 3；For
It enables the invention to realize automation control, all valves use pneumatic control, when compressed air pressure deficiency, cannot be started up
Operation, therefore pressure monitoring device 22 is installed on centrifugal high pressure fan 21, it is used in centrifugal high pressure fan 21 is monitored
Compressed air pressure be less than 6kg/cm2 when, automatic alarm；
Adsorbent equipment 3 includes three adsorption tanks 31 arranged side by side, is equipped with to adsorb organic exhaust gas in each adsorption tanks
Active carbon bed 32 is additionally provided with oxygen content detector 33 and temperature alarming, interlock system 34, the temperature report in each adsorption tanks
Alert, interlock system 34 can when the temperature of active carbon bed 32 is increased to enter risk range automatic alarm, and signal is sent out
Giving control device 5 acts its control desorption condensing unit 4；
Desorption condensing unit 4 includes being sequentially connected the PSA nitrogen generator group 41 connect, condensing mechanism 42, circulating fan 43, heater
44, condensing mechanism 42 is connected with heater 44 with three adsorption tanks 31；Oxygen content detector 33 detects the weight percent of oxygen
When content is more than 5%, starts PSA nitrogen generator group, it is made to purge active carbon bed 32；Oxygen content detector 33 detects
When the weight percentage of oxygen is less than 3%, PSA nitrogen generator group 41 stops, and at the same time start heater 44 and circulating fan 43 into
Circulating-heating in row, at this point, adsorption tanks 31, condensing mechanism 42, circulating fan 43, heater 44 form a closed cycle pipe
Road.
Control device 5 is by PLC, touch screen, frequency converter, solenoid valve, pneumatic operated valve, air driven pump, various kinds of sensors, detector
And transmitter composition.PLC uses DVP series Programmable logic Controller (PLC)s, and progress is connect with touch screen COM1 by RS232 mouthfuls
Communication realizes human-computer interaction, completes all operations and display function；Led to simultaneously by the RS485 interfaces of PLC with frequency converter
News, touch screen software shows the real time data in PLC, is recorded, is stored, is handled, so as to meet various monitoring requirements.
It is condensed by the waste gas pre-treating device 1, main air blower device 2, adsorbent equipment 3, the desorption that set the control that cooperates
Device 4, control device 5 realize high temperature hot nitrogen desorption, cryogenic condensation recycling organic matter, and the organic matter water content of recycling is low,
Secondary pollution is not generated, operating cost is low；Through collecting the exhaust gas removal rate into system up to more than 95%；Using gas-solvent
Special-purpose activated charcoal is recycled, the rate of recovery is high, and activated carbon service life is long；PAS nitrogen making machines group 41 is configured, available for no vapour source field
It closes.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.Further include the high temperature fire sprinkler system being installed in 31 outer side edges of adsorption tanks
35, temperature alarming, interlock system 34 can send signal when the temperature of active carbon bed 32 rises to over risk range
Make it that high temperature fire sprinkler system 35 be controlled to sprinkle water towards corresponding adsorption tanks 31 to control device 5, it is ensured that activated carbon temperature will not
Continue to increase and jeopardize safety.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.Urgent air bleeding valve 6 is also communicated between cooler 12 and centrifugal high pressure fan 21,
Pressure monitoring device 22 is when detecting that centrifugal high pressure fan 21 overloads, automatic alarm, and sends a signal to control device 5 and make
It controls urgent air bleeding valve 6 to discharge organic exhaust gas.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.Condensing mechanism 42 includes the connected first-stage condenser 421 of cycle and B-grade condensation
Device 422, first-stage condenser 421 connect PSA nitrogen generator group 41 and circulating fan 43.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.One is further included for being condensed to the organic exhaust gas in secondary condenser 422
Cool-water Machine for Industry group 7, hydraulic pressure detector 71 and temperature detector 72, the hydraulic pressure detector 71 are equipped in Cool-water Machine for Industry group 7
For detecting the hydraulic pressure deficiency alarm in Cool-water Machine for Industry group 7, which is used to detect that industry is cold
Water temperature in water dispenser group 7 is more than preset value alarm, so that good recovering effect can be reached.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.The solvent feed tank 8 being connect with secondary condenser 422 is further included, is used to collect
The 422 condensed solvent liquid of secondary condenser.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.Desorption condensing unit 4 further includes pressure gauge 45 and safety dumping pipe 46, installs
In the closed cycle pipeline that adsorption tanks 31, condensing mechanism 42, circulating fan 43, heater 44 are formed（That is nitrogen transmission pipeline）
On.Pressure gauge 45 is used to detect the nitrogen pressure in nitrogen transmission pipeline, and when detecting nitrogen overpressure, control device 5 is controlled
The safety dumping pipe 46 is made to discharge nitrogen.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.A kind of application method of organic exhaust gas reclaimer, includes the following steps：
Step 1
Organic exhaust gas is first transmitted to the removal that large granular impurity is carried out in filter 11, organic exhaust gas continues to be sent to cold later
But less than 40 DEG C are cooled in device 12；
Step 2
After organic exhaust gas has cooled down, pump to the adsorption tanks 31 for carrying out absorption work, have via centrifugal high pressure fan 21
Machine exhaust gas is tightly held by activated carbon when by active carbon bed 32 in adsorption tanks 31 in hole, and wherein reach discharge will
The tail gas asked then drains into air by the floss hole at 31 top of adsorption tanks；
Step 3
Absorption a period of time of adsorption tanks 31, until the oxygen content detector 33 in it detects that the weight percentage of oxygen is more than 5%
When, control device control PSA nitrogen generator group 41 starts, and nitrogen is made to sequentially pass through condensing mechanism 42, circulating fan 43, heater 44
Active carbon bed 32 therein is purged in into adsorption tanks 31；Treat that oxygen content detector 33 detects the weight percent of oxygen
When content is less than 3%, PSA nitrogen generator group 41 stops, and adds and at the same time startup heater 44 and circulating fan 43 carry out interior cycle
Heat enables the nitrogen in it be regenerated activated carbon as gas-solvent；
Step 4
After regenerating active carbon, it is cold that the organic solvent mixed vapour that gets off from 32 surface desorption of active carbon bed falls into condensing mechanism 42
Congeal into solvent liquid, solvent liquid enters solvent feed tank 8, not solidifying gaseous mixture be then sent to again in circulating fan 43 circulating-heating or into
Enter other adsorption tanks 31 adsorbed to continue to adsorb.
The specific embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change that unsubstantiality is carried out to the present invention, the behavior for invading the scope of the present invention should all be belonged to.
Claims (8)
1. a kind of organic exhaust gas reclaimer, it is characterised in that：Including waste gas pre-treating device, main air blower device, adsorbent equipment,
It is desorbed condensing unit, control device；
The waste gas pre-treating device include filter, cooler, cooling tower and circulating pump, the filter, cooler according to
Secondary connection；The cooling tower is connect with circulating pump, for being cooled down to the exhaust gas in cooler；It is installed on the filter
There is filter screen crushing detector, be used for when filter screen causes organic exhaust gas pressure change because blocking or rupturing, automatic alarm；
The main air blower device is centrifugal high pressure fan, is used to pump the exhaust gas in the cooler to the adsorbent equipment
It is interior；Pressure monitoring device is installed on the centrifugal high pressure fan, the compression being used in centrifugal high pressure fan is monitored is empty
When atmospheric pressure is less than 6kg/cm2, automatic alarm；
The adsorbent equipment includes three adsorption tanks arranged side by side, is equipped with to adsorb organic exhaust gas in each adsorption tanks
Active carbon bed is additionally provided with oxygen content detector and temperature alarming, interlock system, the temperature alarming, connection in each adsorption tanks
Lock system can when the temperature of active carbon bed is increased to enter risk range automatic alarm, and send a signal to the control
Device processed makes it control the desorption condensing unit action；
The desorption condensing unit includes being sequentially connected the PSA nitrogen generator group connect, condensing mechanism, circulating fan, heater, described
Condensing mechanism is connected with heater with three adsorption tanks；The oxygen content detector detects the weight percentage of oxygen
During more than 5%, start PSA nitrogen generator group, it is made to purge the active carbon bed；The oxygen content detector detects
When the weight percentage of oxygen is less than 3%, PSA nitrogen generator group stops, and is followed in heater and circulating fan progress and at the same time starting
Ring heats.
2. a kind of organic exhaust gas reclaimer as described in claim 1, it is characterised in that：It further includes and is installed in outside the adsorption tanks
High temperature fire sprinkler system on side, the temperature alarming, interlock system can be increased to surpass in the temperature of active carbon bed
When crossing risk range, sending a signal to the control device makes it control the high temperature fire sprinkler system towards corresponding absorption
Tank is sprinkled water.
3. a kind of organic exhaust gas reclaimer as described in claim 1, it is characterised in that：The cooler and centrifugal high pressure fan
Between be also communicated with urgent air bleeding valve, the pressure monitoring device is when detecting centrifugal high pressure fan overload, automatic alarm, and
Sending a signal to the control device makes it that the urgent air bleeding valve be controlled to discharge organic exhaust gas.
4. a kind of organic exhaust gas reclaimer as described in claim 1, it is characterised in that：The condensing mechanism includes cycle and is connected
First-stage condenser and secondary condenser, the first-stage condenser connect the PSA nitrogen generator group and circulating fan.
5. a kind of organic exhaust gas reclaimer as claimed in claim 4, it is characterised in that：One is further included for cold to the two level
The Cool-water Machine for Industry group that organic exhaust gas in condenser is condensed, the Cool-water Machine for Industry group is interior to be equipped with hydraulic pressure detector and temperature
Detector, the hydraulic pressure detector are used to detect the hydraulic pressure deficiency alarm in Cool-water Machine for Industry group, which uses
In detecting the water temperature in Cool-water Machine for Industry group be more than preset value alarm.
6. a kind of organic exhaust gas reclaimer as claimed in claim 4, it is characterised in that：It further includes and connects with the secondary condenser
The solvent feed tank connect is used to collect the condensed solvent liquid of the secondary condenser.
7. a kind of organic exhaust gas reclaimer as described in claim 1, it is characterised in that：The desorption condensing unit further includes pressure
Power table and safety dumping pipe, the pressure gauge are used to detecting nitrogen pressure in nitrogen transmission pipeline, and are detecting that nitrogen surpasses
During pressure, the control device controls the safety dumping pipe to discharge nitrogen.
8. a kind of application method of organic exhaust gas reclaimer, which is characterized in that include the following steps：
1) organic exhaust gas is first transmitted to the removal that large granular impurity is carried out in filter, organic exhaust gas continues to be sent to later
Less than 40 DEG C are cooled in cooler；
2) it after organic exhaust gas has cooled down, is pumped via centrifugal high pressure fan to the adsorption tanks for carrying out absorption work, it is organic
Exhaust gas is tightly held by activated carbon in hole when by active carbon bed in adsorption tanks, and wherein reaches the tail of emission request
Gas then drains into air by the floss hole at the top of adsorption tanks；
3) described adsorption tanks absorption a period of time, until the oxygen content detector in it detects that the weight percentage of oxygen surpasses
When 5%, control device control PSA nitrogen generator group starts, and nitrogen is made to sequentially pass through condensing mechanism, circulating fan, heater and is entered
Active carbon bed therein is purged in adsorption tanks；Treat that the oxygen content detector detects that the weight percentage of oxygen is low
When 3%, PSA nitrogen generator group stops, and at the same time starting circulating-heating in heater and circulating fan progress, makes the nitrogen in it
Gas can be used as gas-solvent to be regenerated activated carbon；
4) after regenerating active carbon, it is cold that the organic solvent mixed vapour that gets off from active carbon bed surface desorption falls into condensing mechanism
Solvent liquid is congealed into, solvent liquid enters solvent feed tank, and not solidifying gaseous mixture is then sent to circulating-heating or entrance in circulating fan again
Other adsorption tanks adsorbed continue to adsorb.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109589696A (en) * | 2018-11-29 | 2019-04-09 | 长沙凯天工研院环保服务有限公司 | A kind of exhaust-gas treatment filtering cooling system |
| CN110434027A (en) * | 2019-08-30 | 2019-11-12 | 张铁江 | A kind of organic solvent recovery device for liquid crystal display panel manufacturing automatic double surface gluer |
| CN112657278A (en) * | 2020-11-17 | 2021-04-16 | 江苏科易达环保科技有限公司 | Exhaust gas treatment sharing equipment |
| CN115501729A (en) * | 2022-11-22 | 2022-12-23 | 山东圣文环保科技有限公司 | Desorption device for VOCs high-temperature waste heat treatment |
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