CN104001406A - Fumigation agent methyl bromide activated carbon fiber adsorption recovery device and method thereof - Google Patents
Fumigation agent methyl bromide activated carbon fiber adsorption recovery device and method thereof Download PDFInfo
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- CN104001406A CN104001406A CN201410269242.0A CN201410269242A CN104001406A CN 104001406 A CN104001406 A CN 104001406A CN 201410269242 A CN201410269242 A CN 201410269242A CN 104001406 A CN104001406 A CN 104001406A
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- GZUXJHMPEANEGY-UHFFFAOYSA-N methyl bromide Substances BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000003958 fumigation Methods 0.000 title claims abstract description 30
- 229940102396 methyl bromide Drugs 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 title abstract 5
- -1 methyl bromide activated carbon fiber Chemical class 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000004064 recycling Methods 0.000 claims abstract description 21
- 238000003795 desorption Methods 0.000 claims description 63
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000004381 Choline salt Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- 239000004917 carbon fiber Substances 0.000 claims description 9
- 238000007084 catalytic combustion reaction Methods 0.000 claims description 9
- 239000002316 fumigant Substances 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 claims description 2
- 230000001351 cycling effect Effects 0.000 abstract 1
- 239000003575 carbonaceous material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229940125368 controlled substance Drugs 0.000 description 1
- 239000000599 controlled substance Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
Abstract
The invention relates to a fumigation agent methyl bromide activated carbon fiber adsorption recovery device. According to the fumigation agent methyl bromide activated carbon fiber adsorption recovery device, a plurality of ACF adsorption towers are connected to the same pipeline in parallel. The two ends of the pipeline are communicated with a fumigated base, so that a methyl bromide ACF circulation system is formed. The methyl bromide ACF circulation system is further communicated with a circulation heating system and a vacuum desorbing system. The method comprises the steps that a, methyl bromide gas in the fumigated base is introduced to the fumigation agent methyl bromide activated carbon fiber adsorption recovery device; b, a vacuum pump K1002 is started for vacuum desorbing; c, heat cycling is conduced; d, the ACF adsorption towers on which desorbing is conducted are prepared to conduct next adsorption; e, the desorbed methyl bromide gas is converted and sent to the base to be fumigated. Recycling and reusing of the fumigation agent methyl bromide are achieved after the fumigated base is fumigated, the fumigated base and a recycling and reusing device are organically combined, and recycling and reusing of the methyl bromide for fumigating of the fumigated base are achieved.
Description
Technical field
The present invention relates to the stifling processing technology field of Celfume quarantine, be particularly related to a kind of fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer and method thereof, adopt NACF (Activated Carbon Fiber, be called for short ACF) recycling Celfume, after processing for methyl bromide fumigation, Celfume ACF adsorbs recycling, provides foundation for realizing recycling of Celfume.
Background technology
Celfume be fumigate in the world at present in processing application at most, fumigant the most widely.Celfume has the characteristic of extensive kill insects, nematode, germ and weeds, but because Celfume has destruction to the ozone layer in atmosphere, 1992, it was put into the controlled substance list of " about ODS Montreal Protocol book " amendment.For Celfume after reducing stifling processing discharges the destruction to ozone layer, need research to realize Celfume recycling technology.
Applicant is authorized before this, and Celfume reclaims and 2 of the utility model patents of recycling, is respectively " microwave decompression condensation recovery system " (patent No.: ZL 200820075975.0) and " Celfume pressurization condensate recycling device " (patent No.: ZL 200820073985.0).These 2 patents have mainly been studied after methyl bromide fumigation processing, how to adopt charcoal absorption to fumigate Celfume after treatment, Celfume in absorption saturated rear employing heating using microwave or other thermal source desorb active carbons, then adopt the technological means such as condensation or pressurization by Celfume be recycled in steel cylinder, deposit for subsequent use.
Above patent as compared with the past technology is had large improvement, but in practical operation, exist Celfume desorption effect poor, reclaim that purity is inconsistent at every turn, condensation is recycled to that steel cylinder operation requirements is high, equipment cost is high, change the problems such as active carbon inconvenience.
Another patent of invention that patent applicant is authorized is " system for reutilizing bromomethane by vacuum heating " (patent No.: ZL 201010592903.5), has substantially solved the problem that above patent exists in practical operation.
System for reutilizing bromomethane by vacuum heating, is mainly made up of heating cavity, airtight stifling facility, valve, vavuum pump and pipeline; In heating cavity, comprise some (calculate Carbon Materials according to the stifling demand of reality and fill quantity and packed column quantity) Carbon Materials packed column (comprising active carbon or charcoal fiber), Carbon Materials packed column adopts vertical placement can effectively solve active carbon or charcoal fiber skewness, active carbon or charcoal fiber are changed a difficult difficult problem; After adopting vavuum pump to vacuumize Carbon Materials packed column, the Celfume of heating desorption Carbon Materials absorption can improve desorption effect again, reduces the temperature of heating desorption; Adopt the Celfume of heating in vacuum desorb can directly be disposed in the stifling facility of goods to be fumigated, reduce the recycling cost of Celfume.
But, described system for reutilizing bromomethane by vacuum heating still belongs to the base apparatus that carries out Celfume ACF absorption recovery, the single unit system of not complete open Celfume ACF absorption recovery test forms and technological process, therefore will carry out complete Celfume ACF absorption recovery operation and still lack corresponding equipment and process parametric technique.
Summary of the invention
Object of the present invention is exactly in order to overcome above-mentioned the deficiencies in the prior art, a kind of fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer and method thereof are provided, provide device hardware and process conditions for realizing Celfume NACF (ACF) absorption recovery, for the recycling of Celfume provides foundation, thereby solve better the recycling problem of Celfume.
The object of the invention is to realize by such technical scheme: a kind of fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer, comprise ACF adsorption tower, in ACF adsorption tower, be provided with the adsorption column being formed by NACF, it is characterized in that, be connected in parallel on the same circuit pipeline by multiple ACF adsorption towers, the two ends of return communicate with Fumigation Station, form the Celfume ACF circulatory system; The Celfume ACF circulatory system also communicates with a loop heating system, a vacuum desorption system respectively;
In the described Celfume ACF circulatory system, a pipe joint is left respectively at upper and lower two ends of multiple ACF adsorption tower V-1, V-2, V-3 and V-n, respectively as exhaust port and air inlet pipe interface;
Multiple ACF adsorption tower V-1, V-2, V-3 and V-n are connected respectively blast pipe A, blast pipe B, blast pipe C and blast pipe N by going up separately the exhaust port of bottom; An electric butterfly valve is installed respectively on each blast pipe;
Multiple blast pipes are in parallel to be communicated with on same main exhaust pipeline, the end of main exhaust pipeline is divided into again two branch roads, Article 1, branch road is connected to conversion/balance sysmte header pipe, Article 2 branch road is connected to discharge manifold, article two, an electric butterfly valve is installed respectively, by the opening and closing of electric butterfly valve control branch road on branch road;
Multiple ACF adsorption tower V-1, V-2, V-3 and V-n, by descending separately the air inlet pipe interface of bottom to be connected respectively air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, install respectively an electric butterfly valve in each air inlet pipe; Multiple air inlet pipe are in parallel to be communicated with on the main admission line of same;
Main admission line is provided with successively temperature sensor TI, pressure transmitter PI, blower fan K1001, filter E1001 and surface cooler F1001 from itself and multiple air inlet pipe connected node to the pipeline of its end; An electric butterfly valve is installed on the pipeline of filter E1001 front end, the pipeline of electric butterfly valve front end is divided into again two branch roads, Article 1, branch road is directly connected to Fumigation Station air draught house steward, Article 2 branch road is connected to the doorway escape gas collector of Fumigation Station through an electric butterfly valve, filter E1001 is connected with refrigeration unit X1001;
Described loop heating system is made up of electric heater E1002 and thermal cycle pipeline, draws hot discharge pipe A, hot discharge pipe B, hot discharge pipe C and hot discharge pipe N respectively from blast pipe A, blast pipe B, blast pipe C and blast pipe N; Node from multiple hot discharge pipe parallel connections is drawn two pipelines that communicate, and a pipeline is connected on thermal cycle pipeline epimere, and another device for cleaning pipeline is crossed check-valves and is connected on main exhaust pipeline;
Thermal cycle pipeline epimere is connected to electric heater E1002 upper end return air inlet; A magnetic valve is installed respectively on each hot discharge pipe;
Draw hot blast pipe A, hot blast pipe B, hot blast pipe C and hot blast pipe N from air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N respectively, multiple hot blast pipes are connected in parallel on thermal cycle pipeline hypomere, and thermal cycle pipeline hypomere end is connected to electric heater E1002 lower end air outlet; An electrical ball valve is installed respectively on each hot blast pipe;
Described vacuum desorption system is made up of vavuum pump K1002 and main vacuum desorption pipeline, and main vacuum desorption pipeline is connected with the desorb pipeline that descends separately bottom of multiple ACF adsorption towers;
Draw desorption tube A, desorption tube B, desorption tube C and desorption tube N from air inlet pipe A1, air inlet pipe B, air inlet pipe C and air inlet pipe N respectively, multiple desorption tube are connected in parallel on main vacuum desorption pipeline, and an electrical ball valve is installed respectively in each desorption tube; The end of main vacuum desorption pipeline is connected to the bleeding point of vavuum pump K1002, and the exhaust pipe of vavuum pump K1002 is connected to conversion/balance sysmte header pipe;
On described ACF adsorption tower V-1, V-2, V-3 and V-N, be separately installed with temperature sensor TI, pressure transmitter PI and digital display temperature meter TIA;
In the time that ACF adsorption tower V-1, V-2, V-3 and V-N are in methyl bromide gas absorption duty, electrical ball valve, magnetic valve on loop heating system and vacuum desorption system pipeline are all closed;
In the time that loop heating system is in duty, electric butterfly valve on air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, blast pipe A, blast pipe B, blast pipe C and blast pipe N all cuts out, and electrical ball valve, magnetic valve on vacuum desorption system pipeline are closed simultaneously;
In the time that vacuum desorption system is in duty, electric butterfly valve on air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, blast pipe A, blast pipe B, blast pipe C and blast pipe N all cuts out, and electrical ball valve, magnetic valve on loop heating system pipeline are closed simultaneously;
Temperature sensor TI on described ACF adsorption tower V-1, V-2, V-3 and V-N and each pipeline, the respective signal input port that pressure transmitter PI is connected respectively to control circuit, by control circuit, signal is carried out to A/D conversion, data processing and control signal output program, by the each electric butterfly valve of control circuit control, electrical ball valve, electromagnetic valve switch state, realize omnidistance control of Celfume ACF absorption recovery test process.
The method of utilizing described fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer to carry out Celfume recycling, comprises following technological process:
Methyl bromide gas in a, Fumigation Station is by Fumigation Station air draught house steward, be incorporated into Celfume carbon fiber adsorption and catalytic combustion reclaimer through blower fan pressurization, first enter filter E1001, remove the impurity in Celfume mist, enter again and in surface cooler F1001, carry out cool drying, then send in each ACF adsorption tower, Celfume mist enters the adsorbent bed Celfume absorption of carrying out, Celfume residual gas after absorption is sent into conversion/balance sysmte header pipe by main exhaust pipeline again, gets back in this Fumigation Station;
B, be that Celfume mist is while starting to penetrate when the adsorbent bed absorption of ACF adsorption tower reaches capacity, electric butterfly valve on air inlet pipe, the blast pipe of Celfume mist cuts out, electrical ball valve on the desorb pipeline of each ACF adsorption tower is opened, and vavuum pump K1002 starting starts vacuum desorption; When the ACF of measuring adsorption tower vacuum pressure to be checked reaches setting value, keep vacuum desorption state 30min-1h final vacuum pump to slow down and stop gradually;
C, then open circulating-heating valve, electric heater, heating blower is opened, and electric heater cuts out, and after circulating-heating valve, heating blower 5min, closes;
Electric butterfly valve on d, air inlet pipe, blast pipe is opened, and the ACF adsorption tower after desorb finishes is prepared to adsorb next time;
E, the methyl bromide gas desorbing are sent into conversion/balance sysmte header pipe through the exhaust pipe of vavuum pump K1002, send into reservoir area to be fumigated by valve conversion;
The cold water that refrigeration unit X1001 provides is that refrigerant carries out circulating cooling, and 5～20 DEG C of leaving water temperatures are adjustable, and refrigeration unit is Wind-cooling type, and environment temperature is effective lower than 40 DEG C, simultaneously cooling for vavuum pump;
The parallel connection of many ACF adsorption towers, the operation method of employing comprises:
1) adopt that separate unit ACF adsorption tower adsorbs, vacuum desorption process;
2) many ACF adsorption towers move simultaneously, synchronously adsorb, vacuum desorption process;
3) many ACF adsorption towers move simultaneously, asynchronously adsorb, vacuum desorption process; In the time that wherein an ACF adsorption tower carries out vacuum desorption process, proceed absorption for another two; Realizing thus package unit moves continuously.
The beneficial effect that the technical solution used in the present invention obtains is:
Realize the stifling recycling of processing rear fumigant Celfume of Fumigation Station by the present invention.Fumigation Station, recycling equipment are organically blent, the stifling technical barrier of processing Celfume recycling of perfect Fumigation Station.Be embodied in the following aspects:
1, operation principle and the recycling method thereof of Celfume recycling equipment that the present invention is perfect, provides the technological process of Celfume recycling equipment work.
2, the present invention is in conjunction with the stifling actual conditions of processing of Fumigation Station, Fumigation Station is stifling process after after recovery method, desorption method and the desorb of Celfume the aspect such as recycling method of Celfume accomplished integrated innovation.
3, existing complete set of equipments facility adopts the technical program to carry out the concrete application of methyl bromide fumigation processing, and obtains good economic and social benefit.
4, China is as Montreal Protocol on Substances that Deplete the Ozone Layer contracting party; to fulfil the responsibility of contracting party on the one hand; reduce Celfume discharge; on the other hand; also should provide the Celfume with independent intellectual property right to reduce discharging scheme; in conference of states parties, strive for the interests of China, extend Celfume service life, make it process the preserve the ecological environment effect of safety and people's health of purposes performance in quarantine.
Brief description of the drawings
Fig. 1 is technological process and the structural representation of Celfume ACF absorption reclaimer;
Fig. 2 is doorway escape gas collector schematic diagram.
In figure: 1. main admission line, 2. main exhaust pipeline, 3. Fumigation Station air draught house steward, 4. conversion/balance sysmte header pipe, 5. discharge manifold, 6. doorway escape gas collector, 7. electric butterfly valve, 8. electrical ball valve, 9. ball valve, 10. magnetic valve, 11. stop valves, 12. check-valves; 101. air inlet pipe A, 102. air inlet pipe B, 103. air inlet pipe C; 201. blast pipe A, 202. blast pipe B, 203. blast pipe C; The hot discharge pipe A of 201-1., the hot discharge pipe B of 202-1., the hot discharge pipe C of 203-1.; The hot blast pipe A of 101-1., the hot blast pipe B of 102-1., the hot blast pipe C of 103-1.; 101-2. desorption tube A, 102-2. desorption tube B, 103-2. desorption tube C.
Detailed description of the invention
For a more clear understanding of the present invention, describe in conjunction with the accompanying drawings and embodiments the present invention in detail:
In embodiment as shown in Figure 1 taking three ACF adsorption towers as example, Celfume ACF adsorbs reclaimer, comprise three ACF adsorption towers, in each ACF adsorption tower, be provided with the adsorption column being formed by NACF, be connected in parallel on the same circuit pipeline by three ACF adsorption towers, the two ends of return are identical with Fumigation Station, form the Celfume ACF circulatory system; The Celfume ACF circulatory system also communicates with a loop heating system, a vacuum desorption system respectively;
A pipe joint is left respectively at upper and lower two ends of three ACF adsorption tower V-1, V-2, V-3; Respectively as exhaust port and air inlet pipe interface;
Three ACF adsorption tower V-1, V-2, V-3 connect respectively blast pipe A201, blast pipe B202 and blast pipe C203 by going up separately the exhaust port of bottom; An electric butterfly valve 7 is installed respectively on three blast pipes;
Three in parallel connections on same main exhaust pipeline 2 of blast pipe, the end of main exhaust pipeline 2 is divided into again two branch roads, Article 1, branch road is connected to conversion/balance sysmte header pipe 4, Article 2 branch road is connected to discharge manifold 5, article two, an electric butterfly valve 7 is installed respectively on branch road, is controlled the opening and closing of branch road by electric butterfly valve 7;
Conversion/balance sysmte header pipe Shang Xia 4 two ends (import and export) connect respectively different Fumigation Stations.
Three ACF adsorption tower V-1, V-2, V-3, by descending separately the air inlet pipe interface of bottom to connect respectively air inlet pipe A101, air inlet pipe B102 and air inlet pipe C103, install respectively an electric butterfly valve 7 in three air inlet pipe; Three in parallel connections on the main admission line 1 of same of air inlet pipe;
Main admission line 1 is provided with successively temperature sensor TI, pressure transmitter PI, blower fan K1001, filter E1001 and surface cooler F1001 from the pipeline of itself and three air inlet pipe connected nodes end extremely; An electric butterfly valve 7 is installed on the pipeline of filter E1001 front end, the pipeline of electric butterfly valve 7 front ends is divided into again two branch roads, Article 1, branch road is directly connected to Fumigation Station air draught house steward 3, and Article 2 branch road is connected to doorway escape gas collector 6 through an electric butterfly valve 7; Surface cooler F1001 is connected with refrigeration unit X1001;
Described loop heating system is made up of electric heater E1002 and thermal cycle pipeline 13,
Hot discharge pipe A201-1, the hot discharge pipe B202-1, the hot discharge pipe C203-1 that draw from blast pipe A201, blast pipe B202 and blast pipe C203 respectively;
Three hot discharge pipes are connected in parallel on thermal cycle pipeline 13, and the node after parallel connection is drawn two pipelines that communicate, and a pipeline is connected on thermal cycle pipeline 13 epimeres, and another device for cleaning pipeline is crossed check-valves 12 and is connected on main exhaust pipeline 2;
Thermal cycle pipeline 13 epimere ends are connected to electric heater E1002 upper end return air inlet; A magnetic valve 10 is installed respectively on three hot discharge pipes;
Draw hot blast pipe A101-1, hot blast pipe B102-1, hot blast pipe C103-1 from air inlet pipe A101, air inlet pipe B102 and air inlet pipe C103 respectively, three hot blast pipes are connected in parallel on thermal cycle pipeline 13 hypomeres, and thermal cycle pipeline 13 hypomere ends are connected to electric heater E1002 lower end air outlet; An electrical ball valve 8 is installed respectively on three hot blast pipes;
Described vacuum desorption system is made up of with the main vacuum desorption pipeline that the desorb pipeline that descends separately bottom of three ACF adsorption towers is connected vavuum pump K1002;
Draw desorption tube A101-2, desorption tube B102-2, desorption tube C103-2 from air inlet pipe A101, air inlet pipe B102 and air inlet pipe C103 respectively, three desorption tube are connected in parallel on main vacuum desorption pipeline, and an electrical ball valve 8 is installed respectively in three desorption tube; The end of main vacuum desorption pipeline is connected to the bleeding point of pawl formula vavuum pump K1002, the gas outlet of vavuum pump K1002, and pipeline is connected to conversion/balance sysmte header pipe 4;
On three described ACF adsorption tower V-1, V-2, V-3, be separately installed with temperature sensor TI, pressure transmitter PI and digital display temperature meter TIA;
In the time that three ACF adsorption tower V-1, V-2, V-3 are in methyl bromide gas absorption duty, electrical ball valve 8, magnetic valve 10 on loop heating system and vacuum desorption system pipeline are all closed;
In the time that loop heating system is in duty, electric butterfly valve 7 on air inlet pipe A101, air inlet pipe B102, air inlet pipe C103, blast pipe A201, blast pipe B202 and blast pipe C203 all cuts out, and electrical ball valve 8, magnetic valve 10 on vacuum desorption system pipeline are closed simultaneously;
In the time that vacuum desorption system is in duty, electric butterfly valve 7 on air inlet pipe A101, air inlet pipe B102, air inlet pipe C103, blast pipe A201, blast pipe B202 and blast pipe C203 all cuts out, and electrical ball valve 8, magnetic valve 10 on loop heating system pipeline are closed simultaneously;
Temperature sensor TI on three described ACF adsorption tower V-1, V-2, V-3 and each pipelines, the respective signal input port that pressure transmitter PI is connected respectively to control circuit, by control circuit, signal is carried out to A/D conversion, data processing and control signal output program, by the each electric butterfly valve 7 of control circuit control, electrical ball valve 8, magnetic valve 10 on off states, realize omnidistance control of Celfume ACF absorption recovery test process.
Escape gas collector 6 in doorway is made up of fan housing, blower fan, pipeline, magnetic valve, when after stifling end, open Fumigation Station gate, when goods outbound, open Celfume escape gathering-device, be transported in Celfume absorption reclaimer by blower fan and pipeline spread the Celfume of escaping by doorway.
According to the above description, can realize the solution of the present invention in conjunction with art technology.
Claims (2)
1. a fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer, comprise ACF adsorption tower, in ACF adsorption tower, be provided with the adsorption column being formed by NACF, it is characterized in that, be connected in parallel on the same circuit pipeline by multiple ACF adsorption towers, the two ends of return communicate with Fumigation Station, form the Celfume ACF circulatory system; The Celfume ACF circulatory system also communicates with a loop heating system, a vacuum desorption system respectively;
In the described Celfume ACF circulatory system, a pipe joint is left respectively at upper and lower two ends of multiple ACF adsorption tower V-1, V-2, V-3 and V-n, respectively as exhaust port and air inlet pipe interface;
Multiple ACF adsorption tower V-1, V-2, V-3 and V-n are connected respectively blast pipe A, blast pipe B, blast pipe C and blast pipe N by going up separately the exhaust port of bottom; An electric butterfly valve is installed respectively on each blast pipe;
Multiple blast pipes are in parallel to be communicated with on same main exhaust pipeline, the end of main exhaust pipeline is divided into again two branch roads, Article 1, branch road is connected to conversion/balance sysmte header pipe, Article 2 branch road is connected to discharge manifold, article two, an electric butterfly valve is installed respectively, by the opening and closing of electric butterfly valve control branch road on branch road;
Multiple ACF adsorption tower V-1, V-2, V-3 and V-n, by descending separately the air inlet pipe interface of bottom to be connected respectively air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, install respectively an electric butterfly valve in each air inlet pipe; Multiple air inlet pipe are in parallel to be communicated with on the main admission line of same;
Main admission line is provided with successively temperature sensor TI, pressure transmitter PI, blower fan K1001, filter E1001 and surface cooler F1001 from itself and multiple air inlet pipe connected node to the pipeline of its end; An electric butterfly valve is installed on the pipeline of filter E1001 front end, the pipeline of electric butterfly valve front end is divided into again two branch roads, Article 1, branch road is directly connected to Fumigation Station air draught house steward, Article 2 branch road is connected to the doorway escape gas collector of Fumigation Station through an electric butterfly valve, filter E1001 is connected with refrigeration unit X1001;
Described loop heating system is made up of electric heater E1002 and thermal cycle pipeline, draws hot discharge pipe A, hot discharge pipe B, hot discharge pipe C and hot discharge pipe N respectively from blast pipe A, blast pipe B, blast pipe C and blast pipe N; Node from multiple hot discharge pipe parallel connections is drawn two pipelines that communicate, and a pipeline is connected on thermal cycle pipeline epimere, and another device for cleaning pipeline is crossed check-valves and is connected on main exhaust pipeline;
Thermal cycle pipeline epimere is connected to electric heater E1002 upper end return air inlet; A magnetic valve is installed respectively on each hot discharge pipe;
Draw hot blast pipe A, hot blast pipe B, hot blast pipe C and hot blast pipe N from air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N respectively, multiple hot blast pipes are connected in parallel on thermal cycle pipeline hypomere, and thermal cycle pipeline hypomere end is connected to electric heater E1002 lower end air outlet; An electrical ball valve is installed respectively on each hot blast pipe;
Described vacuum desorption system is made up of vavuum pump K1002 and main vacuum desorption pipeline, and main vacuum desorption pipeline is connected with the desorb pipeline that descends separately bottom of multiple ACF adsorption towers;
Draw desorption tube A, desorption tube B, desorption tube C and desorption tube N from air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N respectively, multiple desorption tube are connected in parallel on main vacuum desorption pipeline, and an electrical ball valve is installed respectively in each desorption tube; The end of main vacuum desorption pipeline is connected to the bleeding point of vavuum pump K1002, and the exhaust pipe of vavuum pump K1002 is connected to conversion/balance sysmte header pipe;
On described ACF adsorption tower V-1, V-2, V-3 and V-N, be separately installed with temperature sensor TI, pressure transmitter PI and digital display temperature meter TIA;
In the time that ACF adsorption tower V-1, V-2, V-3 and V-N are in Celfume mixed gas sorption duty, electrical ball valve, magnetic valve on loop heating system and vacuum desorption system pipeline are all closed;
In the time that loop heating system is in duty, electric butterfly valve on air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, blast pipe A, blast pipe B, blast pipe C and blast pipe N all cuts out, and electrical ball valve, magnetic valve on vacuum desorption system pipeline are closed simultaneously;
In the time that vacuum desorption system is in duty, electric butterfly valve on air inlet pipe A, air inlet pipe B, air inlet pipe C and air inlet pipe N, blast pipe A, blast pipe B, blast pipe C and blast pipe N all cuts out, and electrical ball valve, magnetic valve on loop heating system pipeline are closed simultaneously;
Temperature sensor TI on described ACF adsorption tower V-1, V-2, V-3 and V-N and each pipeline, the respective signal input port that pressure transmitter PI is connected respectively to control circuit, by control circuit, signal is carried out to A/D conversion, data processing and control signal output program, by the each electric butterfly valve of control circuit control, electrical ball valve, electromagnetic valve switch state, realize omnidistance control of Celfume ACF absorption recovery test process.
2. the method for utilizing a kind of fumigant Celfume carbon fiber adsorption and catalytic combustion reclaimer described in claim 1 to carry out Celfume recycling, comprises following technological process:
Celfume mist in a, Fumigation Station is by Fumigation Station air draught house steward, be incorporated into Celfume carbon fiber adsorption and catalytic combustion reclaimer through blower fan pressurization, first enter filter E1001, remove the impurity in Celfume mist, enter again and in surface cooler F1001, carry out cool drying, then send in each ACF adsorption tower, Celfume mist enters the adsorbent bed Celfume absorption of carrying out, Celfume residual gas after absorption is sent into conversion/balance sysmte header pipe by main exhaust pipeline again, gets back in this Fumigation Station;
B, be that Celfume mist is while starting to penetrate when the adsorbent bed absorption of ACF adsorption tower reaches capacity, electric butterfly valve on air inlet pipe, the blast pipe of Celfume mist cuts out, electrical ball valve on the desorb pipeline of each ACF adsorption tower is opened, and vavuum pump K1002 starting starts vacuum desorption; When the ACF of measuring adsorption tower vacuum pressure to be checked reaches setting value, keep vacuum desorption state 30min-1h final vacuum pump to slow down and stop gradually;
C, then open circulating-heating valve, electric heater, heating blower is opened, and electric heater cuts out, and after circulating-heating valve, heating blower 5min, closes;
Electric butterfly valve on d, air inlet pipe, blast pipe is opened, and the ACF adsorption tower after desorb finishes is prepared to adsorb next time;
E, the methyl bromide gas desorbing are sent into conversion/balance sysmte header pipe through the exhaust pipe of vavuum pump K1002, send into reservoir area to be fumigated by valve conversion;
The cold water that refrigeration unit X1001 provides is that refrigerant carries out circulating cooling, and 5～20 DEG C of leaving water temperatures are adjustable, and refrigeration unit is Wind-cooling type, and environment temperature is effective lower than 40 DEG C, simultaneously cooling for vavuum pump;
The parallel connection of many ACF adsorption towers, the operation method of employing comprises:
Employing separate unit ACF adsorption tower adsorbs, vacuum desorption process;
Many ACF adsorption towers move simultaneously, synchronously adsorb, vacuum desorption process;
Many ACF adsorption towers move simultaneously, asynchronously adsorb, vacuum desorption process; In the time that wherein an ACF adsorption tower carries out vacuum desorption process, proceed absorption for another two; Realizing thus package unit moves continuously.
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| CN109395125A (en) * | 2018-11-23 | 2019-03-01 | 天津卫技天马除害处理技术服务有限公司 | A kind of high-effective disinfecting processing system of imported plants |
| CN109397445A (en) * | 2018-11-20 | 2019-03-01 | 大丰海港港口责任有限公司 | A kind of wood fumigation system |
| CN110292831A (en) * | 2019-07-25 | 2019-10-01 | 河北科容油站设备有限公司 | Oil gas recovery processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106338585A (en) * | 2016-10-09 | 2017-01-18 | 江苏建筑职业技术学院 | Low-concentration airflow gas methane extracting experiment device |
| CN109397445A (en) * | 2018-11-20 | 2019-03-01 | 大丰海港港口责任有限公司 | A kind of wood fumigation system |
| CN109395125A (en) * | 2018-11-23 | 2019-03-01 | 天津卫技天马除害处理技术服务有限公司 | A kind of high-effective disinfecting processing system of imported plants |
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| CN104001406B (en) | 2015-09-30 |
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