CN112791558B - Rotary gas adsorption device and working method thereof - Google Patents
Rotary gas adsorption device and working method thereof Download PDFInfo
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- CN112791558B CN112791558B CN201911113094.2A CN201911113094A CN112791558B CN 112791558 B CN112791558 B CN 112791558B CN 201911113094 A CN201911113094 A CN 201911113094A CN 112791558 B CN112791558 B CN 112791558B
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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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
A rotary gas adsorption device and a working method thereof are disclosed, the device comprises: the roller can rotate along the circumferential direction of the roller and is provided with an adsorption side and a desorption side which are opposite; the first gas pipeline structure comprises a plurality of isolating pieces, and the first gas pipeline structure is sequentially divided into an adsorption area gas pipeline, a desorption area gas pipeline, a circulation area gas pipeline and a cooling area gas pipeline by the isolating pieces along the rotation direction of the roller; the heating device is used for heating the gas into desorption gas; the first partition plate is positioned on the desorption side of the roller, one side of the first partition plate inputs desorption gas from the gas pipeline of the circulation area into the heating device, and the other side of the first partition plate enables part of the desorption gas output by the heating device to flow into the gas pipeline of the circulation area; the gas conveying pipeline to be heated conveys the gas in the gas pipeline of the cooling area and the desorption gas from the gas pipeline of the circulation area to the heating device; and the desorption gas conveying pipeline conveys desorption gas to a desorption area gas pipeline and a circulation area gas pipeline through the rollers. The device saves energy.
Description
Technical Field
The invention relates to the field of gas treatment, in particular to a rotary gas adsorption device and a working method thereof.
Background
There are many processes for producing volatile organic gases (VOC) in the semiconductor field and chemical field, such as photoresist coating in the semiconductor field, and a large amount of VOC is generated in the manufacturing and spraying of paints in the chemical field. These gases are unpleasant in smell and are harmful to human health when inhaled in large quantities, so that they need to be disposed of in a timely manner. However, since these gases are present in very low concentrations in air, only about 15ppm or even lower are present in some areas and must be concentrated before further processing.
The most common in the prior art is to adopt a rotary gas adsorption device, however, the energy consumption of a heating device is large due to the high temperature required by gas desorption by utilizing the existing rotary gas adsorption device, which is not beneficial to energy conservation and emission reduction.
Disclosure of Invention
The invention aims to provide a rotary gas adsorption device and a working method thereof so as to reduce the energy consumption of the rotary gas adsorption device.
In order to solve the above technical problem, the present invention provides a rotary gas adsorption apparatus, comprising: the roller can rotate along the circumferential direction of the roller, is provided with an adsorption side and a desorption side which are opposite to each other, and is used for adsorbing VOC gas; the first gas pipeline structure comprises a plurality of isolating pieces, the isolating pieces divide the first gas pipeline structure into an adsorption area gas pipeline, a desorption area gas pipeline, a circulation area gas pipeline and a cooling area gas pipeline in sequence along the rotation direction of the roller, the adsorption area gas pipeline is used for conveying gas containing VOC gas to the adsorption side of the roller, and the cooling area gas pipeline is used for conveying gas to the adsorption side of the roller; the heating device is used for heating the gas into desorption gas; the first partition plate is positioned on the desorption side of the roller, one side of the first partition plate inputs desorption gas from a gas pipeline of the circulation area into the heating device, and the other side of the first partition plate enables part of desorption gas output by the heating device to flow into the gas pipeline of the circulation area; the gas conveying pipeline to be heated is used for conveying gas from the gas pipeline of the cooling area and desorption gas from the gas pipeline of the circulation area to the heating device; the desorption gas conveying pipeline is used for conveying the desorption gas formed by heating to the desorption area gas pipeline and the circulation area gas pipeline through the rollers; the adsorption area output pipeline is used for outputting the clean gas formed after being adsorbed by the roller; and the desorption area gas pipeline is used for outputting desorption gas passing through the roller.
Optionally, a plurality of separators include first separator, second separator, third separator and circulation separator, the circulation separator is connected with the gyro wheel absorption side, forms accommodation space between circulation separator and gyro wheel absorption side, accommodation space is circulation district gas pipeline, the second separator is connected with the circulation separator, and first separator and second separator are used for forming desorption district gas pipeline, the second separator is used for forming cooling space gas pipeline with the third separator, first separator and third separator are used for forming adsorption district gas pipeline.
Optionally, a plurality of separators include first separator, second separator, third separator, fourth separator and circulation separator, first separator and second separator are used for forming desorption district gas pipeline, and third separator and fourth separator are used for forming cooling space gas pipeline, circulation separator and second separator and third separator form circulation district gas pipeline, first separator and fourth separator are used for forming adsorption district gas pipeline.
Optionally, the gas conveying pipeline to be heated comprises a first pipeline and a second pipeline, the first pipeline is used for conveying the gas in the cooling area gas pipeline to the heating device, and the second pipeline is used for conveying the desorption gas from the circulation area gas pipeline to the heating device; and the pipe wall of the second pipeline is used as a first clapboard.
Optionally, the gas conveying pipeline to be heated is a pipeline, and a pipe wall of the gas conveying pipeline to be heated is used as the first partition plate.
Optionally, a second partition plate located between the gas pipeline of the circulation zone and the gas pipeline of the cooling zone is further arranged in the gas conveying pipeline to be heated.
Optionally, the desorption gas conveying pipeline includes a third pipeline and a fourth pipeline, the third pipeline is used for conveying the desorption gas to the desorption region gas pipeline, and the fourth pipeline is used for conveying the desorption gas to the circulation region gas pipeline; and the pipe wall of the fourth pipeline is used as a first clapboard.
Optionally, the desorption gas conveying pipeline is a pipeline, and a pipe wall of the desorption gas conveying pipeline is used as the first partition plate.
Optionally, a third partition plate located between the desorption region gas pipeline and the circulation region gas pipeline is further arranged in the desorption gas conveying pipeline.
Optionally, the method further includes: and the circulating fan is used for enabling part of desorbed gas to form circulating gas flow between the partition used for forming the gas pipeline of the circulating area and the heating device.
Optionally, the circulation fan is located in the circulation gas duct.
Optionally, the cooling area gas pipeline conveys gas containing VOC to the roller adsorption side; or the cooling area gas pipeline conveys the gas to the roller adsorption side, wherein the gas does not contain VOC.
Correspondingly, the invention also provides a working method of the rotary gas adsorption device, which comprises the following steps: providing the rotary gas adsorption device; providing a gas comprising a VOC gas; providing a gas comprising a VOC gas; respectively introducing gas to the adsorption side of the roller through an adsorption area gas pipeline and a cooling area gas pipeline, adsorbing VOC gas in the adsorption area gas pipeline conveying gas by the roller to form clean gas after passing through the roller, outputting the clean gas through an adsorption area output pipeline, outputting the gas in the cooling area gas pipeline through a roller desorption surface, conveying the gas to a heating device through a gas conveying pipeline to be heated, and heating the gas to be desorbed by the heating device to form desorption gas; the desorption gas is carried to gyro wheel desorption side by desorption gas pipeline, after the gyro wheel, gets into desorption district gas pipeline and circulation district gas pipeline, wherein, desorption gas in the desorption district gas pipeline is exported, and circulation district gas pipeline's desorption gas is through gyro wheel absorption side entering gyro wheel once more under the effect of separator, after gyro wheel desorption side export, is carried to heating device by the gas pipeline of waiting to heat.
Optionally, the temperature range of the desorption gas entering the heating device from the gas pipeline in the circulation zone is as follows: 150-190 ℃; the temperature range of the desorption gas output from the desorption zone gas pipeline is as follows: 190-230 ℃.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the rotary gas adsorption device provided by the technical scheme of the invention, a plurality of separators sequentially divide a first gas pipeline structure into an adsorption area gas pipeline, a desorption area gas pipeline, a circulation area gas pipeline and a cooling area gas pipeline along the rotation direction of a roller, the adsorption area gas pipeline is used for conveying gas to the adsorption side of the roller, the gas comprises VOC gas, the gas conveyed by the adsorption area gas pipeline enters the roller through the adsorption side of the roller, the VOC gas in the gas is adsorbed to form clean gas, the clean gas is output through the desorption side of the roller and then is output through an adsorption area output pipeline, the gas conveyed by the cooling area gas pipeline passes through the roller and then is conveyed to a heating device through a gas conveying pipeline to be heated, desorption gas is formed under the action of the heating device, the desorption gas is conveyed to the roller through the desorption gas conveying pipeline, the VOC gas adsorbed in the roller is heated and released in the process of passing through the roller, part of the desorption gas is released through the desorption area gas pipeline, and the other part of the formed gas enters the roller again through the adsorption side of the roller under the action of the separators, namely: not all the desorption gas formed is released through the desorption area gas pipeline, but part of the desorption gas is recovered and enters the roller again. Because the temperature of the desorbed gas is higher, the heating device only needs smaller power consumption to enable the desorbed gas to reach the temperature at which the VOC gas adsorbed in the roller wheel is desorbed, and therefore, the energy conservation and the cost reduction are facilitated.
Desorption gas is not all through desorption district gas pipeline direct release, but only partial desorption gas passes through desorption district gas pipeline release, and other desorption gas is carried to circulation district gas pipeline for the region that is used for desorption VOC gas not only includes the region of the gyro wheel that desorption district gas pipeline corresponds, still includes the region of the gyro wheel that circulation district gas pipeline corresponds, promptly: the desorption region is large, and the desorption time is prolonged, so that the desorption effect of the VOC gas is improved, and the concentration ratio of the desorbed gas released from the gas pipeline in the desorption region is increased.
And the desorbed gas released by the desorption area gas pipeline is treated by burning, and the concentration of the desorbed gas released by the desorption area gas pipeline is higher, so that less fuel is required for burning, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a rotary gas adsorption apparatus according to the present invention;
FIG. 2 is a side view of the rotary gas adsorption unit of FIG. 1 taken along direction A1;
FIG. 3 is a side view of the rotary gas adsorption unit of FIG. 1 taken in the direction B1;
FIG. 4 is a schematic sectional view of the rotary gas adsorbing device of FIG. 1 along the rotating direction X of the rollers;
FIG. 5 is a graph showing the desorption of different rollers in the rotary gas adsorption apparatus of the present invention;
FIG. 6 is a schematic view of another rotary gas adsorbing device according to the present invention;
FIG. 7 is a schematic cross-sectional view of the rotary gas adsorbing device of FIG. 6 along the X-direction of the rotation of the roller;
FIG. 8 is a schematic cross-sectional view of another separator in the rotary gas adsorption unit of FIG. 7;
fig. 9 is a flow chart illustrating the operation of a rotary gas adsorbing device according to the present invention.
Detailed Description
In order to solve the above technical problem, the present invention provides a rotary gas adsorption apparatus, including: the roller can rotate along the circumferential direction of the roller, is provided with an adsorption side and a desorption side which are opposite to each other, and is used for adsorbing the VOC gas; the first gas pipeline structure comprises a plurality of isolating pieces, the isolating pieces divide the first gas pipeline structure into an adsorption area gas pipeline, a desorption area gas pipeline, a circulation area gas pipeline and a cooling area gas pipeline in sequence along the rotation direction of the roller, the adsorption area gas pipeline is used for conveying gas containing VOC gas to the adsorption side of the roller, and the cooling area gas pipeline is used for conveying gas to the adsorption side of the roller; the heating device is used for heating the gas into desorption gas; the first partition plate is positioned on the desorption side of the roller, one side of the first partition plate inputs desorption gas from a gas pipeline of the circulation area into the heating device, and the other side of the first partition plate enables part of desorption gas output by the heating device to flow into the gas pipeline of the circulation area; the gas conveying pipeline to be heated is used for conveying the gas in the gas pipeline of the cooling area and the desorption gas from the gas pipeline of the circulation area to the heating device; the desorption gas conveying pipeline is used for conveying desorption gas to the desorption area gas pipeline and the circulation area gas pipeline through the rollers; the adsorption area output pipeline is used for outputting the clean gas formed after being adsorbed by the roller; and the desorption area gas pipeline is used for outputting desorption gas passing through the roller. The rotary gas adsorption device is beneficial to energy conservation, and improves the concentration ratio of the desorbed gas output from the gas pipeline in the desorption area.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
FIG. 1 is a schematic view of a rotary gas adsorbing device according to the present invention; FIG. 2 is a side view of the rotary gas adsorption unit of FIG. 1 taken along direction A1; FIG. 3 is a side view of the rotary gas adsorption unit of FIG. 1 taken in the direction B1; fig. 4 is a schematic cross-sectional view of the rotary gas adsorbing device of fig. 1 along the rotation direction X of the roller.
Referring to fig. 1 to 4, the roller 20, which is rotatable along the circumferential direction X thereof, has an adsorption side 31 and a desorption side 32 for adsorbing the VOC gas; a first gas pipeline structure 80 (see fig. 4) including a plurality of partitions (23, 25, 90, and 27), the partitions (23, 25, 90, and 27) dividing the first gas pipeline structure 80 into an adsorption region gas pipeline 80a, a desorption region gas pipeline 80b, a circulation region gas pipeline 80c, and a cooling region gas pipeline 80d in order along the rotation direction X of the roller, the adsorption region gas pipeline 80a being configured to convey the gas M containing the VOC gas to the adsorption side of the roller 20, and the cooling region gas pipeline 80d being configured to convey the gas to the adsorption side of the roller 20; a heating device 30 for heating the gas M to a desorption gas; a first partition plate 105 positioned on the desorption side 32 of the roller 20, wherein one side of the first partition plate 105 inputs the desorption gas from the circulation zone gas pipeline 80c into the heating device 30, and the other side of the first partition plate 105 flows part of the desorption gas output by the heating device 30 into the circulation zone gas pipeline 80c; a gas delivery pipe 201 to be heated, for delivering the gas of the cooling zone gas pipe 80d and the desorption gas from the circulation zone gas pipe 80c to the heating device 30; a desorption gas delivery pipeline 202 for delivering desorption gas to the desorption region gas pipeline 80b and the circulation region gas pipeline 80c through the rollers 20; an adsorption region output duct 200 for outputting the clean gas M1 formed after being adsorbed by the roller 20; and a desorption zone gas pipeline 80b for outputting the desorption gas passing through the roller 20.
It should be noted that the spacers (23, 90, and 27) include a partition plate located in the first air duct structure 80 and a sealing strip located at the end of the first air duct structure 80 and attached to the roller suction side 31, where the sealing strip is located at the end of the partition plate.
In fig. 3, several spacers (23 'and 27') are located on the desorption side 32 of the roller 20, and correspond to the spacers 23 and 27 located on the adsorption side 31 of the roller 20.
In this embodiment, the plurality of spacers (23, 25, 90, and 27) include a first spacer 23, a second spacer 25, a third spacer 27, and a circulation spacer 90, the circulation spacer 90 is connected to the adsorption side 31 of the roller 20, an accommodation space is formed between the circulation spacer 90 and the adsorption side 31 of the roller 20, the accommodation space is a circulation region gas conduit 80c, the second spacer 25 is connected to the circulation spacer 90, the first spacer 23 and the second spacer 25 are used for forming a desorption region gas conduit 80b, the second spacer 25 and the third spacer 27 are used for forming a cooling region gas conduit 80d, and the first spacer 23 and the third spacer 27 are used for forming an adsorption region gas conduit 80a. Adsorption zone gas pipeline 80a, desorption zone gas pipeline 80b, circulation zone gas pipeline 80c and cooling zone gas pipeline 80d arrange along gyro wheel 20's rotation X direction in proper order, gyro wheel 20 includes adsorption zone 22, desorption zone 24, circulation zone 29 and cooling zone 26 in proper order along its rotation direction X, and adsorption zone 22, desorption zone 24, circulation zone 29 and cooling zone 26 and adsorption zone gas pipeline 80a, desorption zone gas pipeline 80b, circulation zone gas pipeline 80c and cooling zone gas pipeline 80d one-to-one.
The adsorption area gas pipeline 80a is used for conveying the gas M to the adsorption area 22 of the roller 20, and the VOC gas in the gas M is adsorbed by the roller 20 to form a clean gas M1; the rotary gas adsorption device further comprises: an adsorption zone output conduit 200 for outputting the clean gas M1.
In this embodiment, the rollers 20 of the adsorption zone 22 are used for purifying the gas M to form a purified gas M1, and the purified gas M1 is sent back to the original construction space, so that the air quality in the construction space meets the requirement of the worker.
In this embodiment, the cooling zone gas duct 80d supplies gas to the adsorption side 31 of the rollers 20, which is the same as the gas M supplied from the adsorption zone gas duct 80a to the adsorption side 31 of the rollers 20, and contains VOC gas.
In other embodiments, the cooling zone gas duct delivers VOC-free gas to the roller adsorption side.
In this embodiment, the gas M fed through the cooling zone gas pipe 80d is subsequently heated by the heating device 30, the heated gas M serves as desorption gas, and then the desorption zone 24 and the circulation zone 29 of the roller are fed through the desorption gas conveying pipe 202, so that the VOC gas adsorbed in the desorption zone 24 and the circulation zone 29 of the roller 20 is released due to heat absorption, and the roller 20 can be adsorbed again when rotating to the desorption zone 24 and the circulation zone 29.
In this embodiment, the flow rate F1 supplied to the suction area 22 of the roller 20 through the suction area gas pipe 80a is larger than the flow rate F2 supplied to the cooling area 26 of the roller 20 through the cooling area gas pipe 80 d.
In this embodiment, the method further includes: and a circulating fan 102 for circulating a part of the desorbed gas between the partition 90 for forming the gas pipeline 80c of the circulating area and the heating device 30.
One part of the desorbed gas passing through the desorption area 24 and the circulation area 29 of the roller 20 is output through the desorption area gas pipeline 80b, and the other part of the desorbed gas enters the circulation area 29 of the roller again under the action of the partition 90, so that a circulating gas flow is formed between the partition 90 for forming the circulation area gas pipeline 80c and the heating device 30, and the region for desorbing the gas M includes not only the desorption area 24 but also the circulation area 29, namely: the desorption area increases.
FIG. 5 is a graph showing the desorption of different rollers in the rotary gas adsorption unit of the present invention.
It should be noted that: curves 1 and 2 are shown for two different rolls at a temperature of 220 degrees celsius and a flow rate of 2 m/s.
The conventional rotary gas adsorption device is not provided with a circulation area, so that the desorption time of the conventional rotary gas adsorption device is short, and the conventional desorption time is less than the time for reaching the peak of desorption, so that the roller is released without being desorbed in a large amount, and the desorption efficiency of the conventional rotary gas adsorption device is low; according to the invention, the circulating zone partition 90 is arranged, so that the desorbed gas passing through the desorption zone 24 of the roller 20 is not completely released, but part of the desorbed gas enters the roller circulating zone 29 again, and circulating airflow is formed among the partition 90, the circulating fan 102 and the heating device 30, so that the desorption area is enlarged, the desorption time is prolonged, more VOC gas can be desorbed, the desorption effect is improved, and the concentration ratio of the desorbed gas released from the desorption zone gas pipeline 80b is increased.
In addition, the part of the desorbed gas passing through the roller 20 desorption area 24 and the circulation area 29 is recovered and enters the roller 20 circulation area 29 again, and the temperature of the recovered desorbed gas is higher, so that the heating device 30 can heat the desorbed gas to the temperature capable of volatilizing the VOC gas adsorbed in the roller 20 desorption area 24 and the circulation area 29 only by using smaller power, thereby being beneficial to energy conservation and cost reduction.
The desorbed gas is discharged from the desorption-zone gas line 80b and then is burned. The concentration ratio of the desorbed gas released is high, so that less fuel is required for combustion, and the combustion cost is reduced.
A desorption fan 50 is arranged in the desorption region gas pipeline 80b and is used for driving desorption gas to flow into the roller 20 which adsorbs full VOC gas.
In the present embodiment, the gas-to-be-heated delivery pipe 201 is a pipe for delivering the gas of the cooling-zone gas pipe 80d and the desorption gas from the circulation-zone gas pipe 80c to the heating device 30; the pipe wall of the gas conveying pipe 201 to be heated is used as the first partition plate 105.
In this embodiment, the gas delivery pipe 201 to be heated does not have a second partition plate located between the gas pipe 80c in the circulation area and the gas pipe 80d in the cooling area, so that the gas M from the gas pipe 80d in the cooling area and the desorbed gas from the gas pipe 80c in the circulation area are directly contacted and mixed, and then heated by the heating device 30.
In other embodiments, the gas conveying pipeline to be heated is also provided with a second partition plate positioned between the gas pipeline of the circulation zone and the gas pipeline of the cooling zone, so that the gas M from the gas pipeline of the cooling zone and the desorption gas from the gas pipeline of the circulation zone are not in direct contact.
In other embodiments, the heated gas delivery conduit comprises a first conduit for delivering gas from the cooling zone gas conduit to the heating device and a second conduit for delivering desorbed gas from the circulation zone gas conduit to the heating device; and the pipe wall of the second pipeline is used as a first partition plate.
In this embodiment, the desorption gas transportation pipeline 202 is a pipeline for transporting the desorption gas heated by the heating device 30 to the roller desorption region 24 and the circulation region 29; the wall of the desorption gas transport conduit 202 serves as a first partition 105.
In this embodiment, the method further includes: the desorption gas transfer pipe 202 further has a third partition plate 103 located between the desorption region gas pipe 80b and the circulation region gas pipe 80 c. The third baffle 103 is used for shunting the gas from the heating device 30, so as to prevent the gas from the heating device 30 from being excessively conveyed to the desorption zone 24 due to the action of the desorption fan 50, and prevent the gas from entering the circulation zone 29 in an excessively small amount. The desorbed gas delivered to the desorption zone 24 is subsequently released, and if more desorbed gas is released through the desorption zone 24, more heat is lost; accordingly, the amount of desorbed gas passing through the circulation zone 29 is less, i.e.: less heat is recovered.
In other embodiments, a third partition plate located between the desorption zone gas pipeline and the circulation zone gas pipeline is not arranged in the desorption gas conveying pipeline; or the desorption gas conveying pipeline comprises a third pipeline and a fourth pipeline, the third pipeline is used for conveying the desorption gas to the desorption area gas pipeline, and the fourth pipeline is used for conveying the desorption gas to the circulation area gas pipeline; and the pipe wall of the fourth pipeline is used as a first partition plate.
In this embodiment, the circulation zone gas duct 80c formed between the partition 90 and the suction side 31 of the roller 20 may have various shapes, and is not limited thereto.
FIG. 6 is a schematic view of another rotary gas adsorbing device according to the present invention; fig. 7 is a schematic sectional view of the rotary gas adsorbing device of fig. 6 along the X-direction of the rotation of the roller.
Referring to fig. 6 and 7, the roller 20, which is rotatable in the circumferential direction X thereof, has an adsorption side 31 and a desorption side 32 for adsorbing the VOC gas; the first gas pipeline structure 80 comprises a plurality of separators (23, 25, 121, 27 and 91), the separators (23, 25, 121, 27 and 91) divide the first gas pipeline structure 80 into an adsorption area gas pipeline 80a, a desorption area gas pipeline 80b, a circulation area gas pipeline 80c and a cooling area gas pipeline 80d in sequence along the rotation direction X of the roller 20, the adsorption area gas pipeline 80a and the cooling area gas pipeline 80d are used for respectively conveying gas M to the adsorption side of the roller 20, and the gas M contains VOC gas; a heating device 30 for heating the gas M to a desorption gas; a first partition plate 105 positioned on the desorption side 32 of the roller 20, wherein one side of the first partition plate 105 inputs the desorption gas from the circulation zone gas pipeline 80c into the heating device 30, and the other side of the first partition plate 105 flows part of the desorption gas output by the heating device 30 into the circulation zone gas pipeline 80c; a gas-to-be-heated delivery pipe 201 (see fig. 7) for delivering the gas of the cooling zone gas pipe 80d and the desorption gas from the circulation zone gas pipe 80c to the heating device 30; a desorption gas delivery pipe 202 (see fig. 7) for delivering desorption gas to the desorption-zone gas pipe 80b and the circulation-zone gas pipe 80c via the rollers 20; an adsorption region output duct 200 for outputting the clean gas M1 formed after being adsorbed by the roller 20; and a desorption zone gas pipeline 80b for outputting the desorption gas passing through the roller 20.
It should be noted that the partition includes a partition located in the first air duct structure 80 and a sealing strip located at the end of the first air duct structure 80 and attached to the roller suction side 31, where the sealing strip is located at the end of the partition.
In this embodiment, the plurality of spacers include a first spacer 23, a second spacer 25, a third spacer 121, a fourth spacer 27, and a circulation spacer 91, the first spacer 23 and the second spacer 25 are used to form the desorption-zone gas pipeline 80b, the third spacer 121 and the fourth spacer 27 are used to form the cooling-zone gas pipeline 80d, the circulation spacer 91 is connected to the second spacer 25 and the third spacer 121 to form the circulation-zone gas pipeline 80c, and the first spacer 23 and the fourth spacer 27 are used to form the adsorption-zone gas pipeline 80a.
The roller 20 sequentially comprises an adsorption area 22, a desorption area 24, a circulation area 29 and a cooling area 26 along the rotation direction X, and the adsorption area 22, the desorption area 24, the circulation area 29 and the cooling area 26 are in one-to-one correspondence with an adsorption area gas pipeline 80a, a desorption area gas pipeline 80b, a circulation area gas pipeline 80c and a cooling area gas pipeline 80 d.
The adsorption area gas pipeline 80a is used for conveying the gas M to the adsorption area 22 of the roller 20, and the VOC gas in the gas M is adsorbed by the roller 20 to form clean gas M1; the rotary gas adsorption device further comprises: an adsorption zone output pipe 200 for outputting the clean gas M1.
The part of the desorbed gas after passing through the roller 20 desorption area 24 and the circulation area 29 is recovered and enters the roller 20 circulation area 29 again, and the temperature of the recovered desorbed gas is higher, so that the heating device 30 can heat the desorbed gas to the temperature capable of volatilizing the VOC gas adsorbed in the roller 20 desorption area 24 and the circulation area 29 only by using smaller power, therefore, the energy conservation is facilitated, and the cost is reduced.
In addition, the desorption gas is not all released directly through desorption zone gas pipeline 80b, but only a part of the desorption gas is released through desorption zone gas pipeline 80b, and the other desorption gas is conveyed into roller 20 again under the effect of the separator, so that the region for desorbing the VOC gas includes not only desorption zone 24 of roller 20 but also circulation zone 29 of roller 20, namely: the desorption region is large, and the desorption time is prolonged, so that the desorption effect of the VOC gas is improved, and the concentration ratio of the desorbed gas discharged from the desorption region gas pipeline 80b is increased.
The desorbed gas is discharged from the desorption-zone gas line 80b and then is burned. Because the concentration ratio of the desorbed gas is higher, less fuel is required for combustion, and the combustion cost is favorably reduced.
The gas delivery pipe 201 to be heated and the desorption gas delivery pipe 202 are the same as those in the above embodiments, and are not described herein again.
The receiving space formed between the circulation spacer 91 and the roller suction side 31 may have other shapes, as shown in fig. 8.
FIG. 8 is a schematic cross-sectional view of a separator in the rotary gas adsorption unit of FIG. 7.
In this embodiment, the inner and outer surfaces of the accommodation space formed between the circulation spacer 91 and the roller suction side 31 are each of a spherical structure.
In other embodiments, the inner and outer surfaces of the receiving space formed between the endless isolating member and the suction side of the roller may have other shapes.
FIG. 9 is a flow chart showing the operation of the rotary gas adsorbing device of the present invention.
Referring to fig. 9, step S1: providing the rotary gas adsorption device; providing a gas comprising a VOC gas; step S2: introducing gas to the roller adsorption side through an adsorption area gas pipeline, after the gas passes through the rollers, adsorbing VOC gas in the adsorption area gas pipeline conveying gas by the rollers to form clean gas, outputting the clean gas through an adsorption area output pipeline, introducing gas to the roller adsorption side through a cooling area gas pipeline, after the gas is output through a roller desorption surface, conveying the gas to a heating device through a gas conveying pipeline to be heated, and heating the gas to be heated by the heating device to form desorption gas; and step S3: the desorption gas is carried to gyro wheel desorption side by desorption gas pipeline, after the gyro wheel, gets into desorption district gas pipeline and circulation district gas pipeline, wherein, desorption gas in the desorption district gas pipeline is exported, and circulation district gas pipeline's desorption gas is through gyro wheel absorption side entering gyro wheel once more under the effect of separator, after gyro wheel desorption side export, is carried to heating device by the gas pipeline of waiting to heat.
Under the effect of the separator that is used for forming circulation district gas pipeline, make the desorption gas through the gyro wheel not totally release out through desorption district gas pipeline, but partial desorption gas is carried into the gyro wheel circulation district again, promptly: the heat of partial desorption gas is recovered, the temperature of the recovered desorption gas is higher, and the heating device can reach the temperature for enabling the desorption gas to reach the desorption gas generation temperature of the gas adsorbed in the roller wheel only by smaller power consumption, so that the energy conservation and the cost reduction are facilitated.
The temperature range of the desorption gas entering the heating device from the gas pipeline of the circulation area is as follows: 150-190 ℃; the temperature range of the desorbed gas output from the heating device is as follows: 190-230 ℃.
And, desorption gas is not all through desorption district gas pipeline direct release, but only partial desorption gas passes through desorption district gas pipeline release, and desorption gas in addition under the effect of separator, reentrant gyro wheel circulation district forms circulation gas between the separator and the heating device that are used for forming circulation district gas pipeline for the time extension of desorption, consequently, be favorable to improving the desorption effect of VOC gas, make the increase of the concentration ratio of desorption gas who releases from desorption district. And (4) after the desorbed gas is output from the desorption area gas pipeline, the desorbed gas is treated by combustion. Because the concentration ratio of the desorbed gas is higher, less fuel is required for combustion, and the combustion cost is favorably reduced.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A rotary gas adsorbing device comprising:
the roller can rotate along the circumferential direction of the roller, is provided with an adsorption side and a desorption side which are opposite to each other, and is used for adsorbing the VOC gas;
the first gas pipeline structure comprises a plurality of isolating pieces, the isolating pieces divide the first gas pipeline structure into an adsorption area gas pipeline, a desorption area gas pipeline, a circulation area gas pipeline and a cooling area gas pipeline in sequence along the rotation direction of the roller, the adsorption area gas pipeline is used for conveying gas containing VOC gas to the adsorption side of the roller, and the cooling area gas pipeline is used for conveying gas to the adsorption side of the roller;
the heating device is used for heating the gas into desorption gas;
the first partition plate is positioned on the desorption side of the roller, one side of the first partition plate inputs desorption gas from a gas pipeline of the circulation area into the heating device, and the other side of the first partition plate enables part of desorption gas output by the heating device to flow into the gas pipeline of the circulation area;
the gas conveying pipeline to be heated is used for conveying gas from the gas pipeline of the cooling area and desorption gas from the gas pipeline of the circulation area to the heating device;
the desorption gas conveying pipeline is used for conveying the desorption gas formed by heating to the desorption area gas pipeline and the circulation area gas pipeline through the rollers;
the adsorption area output pipeline is used for outputting the clean gas formed after being adsorbed by the roller;
the desorption area gas pipeline is used for outputting desorption gas passing through the roller;
the desorption gas is carried to gyro wheel desorption side by desorption gas pipeline, after the gyro wheel, gets into desorption district gas pipeline and circulation district gas pipeline, wherein, desorption gas in the desorption district gas pipeline is exported, and circulation district gas pipeline's desorption gas is through gyro wheel absorption side entering gyro wheel once more under the effect of separator, after gyro wheel desorption side export, is carried to heating device by the gas pipeline of waiting to heat.
2. The rotary gas adsorption unit of claim 1, wherein the plurality of spacers comprise a first spacer, a second spacer, a third spacer and a circulation spacer, the circulation spacer is connected to the roller adsorption side, a receiving space is formed between the circulation spacer and the roller adsorption side, the receiving space is a circulation zone gas conduit, the second spacer is connected to the circulation spacer, the first spacer and the second spacer are used for forming a desorption zone gas conduit, the second spacer and the third spacer are used for forming a cooling zone gas conduit, and the first spacer and the third spacer are used for forming an adsorption zone gas conduit.
3. The rotary gas adsorption unit of claim 1, wherein the plurality of spacers comprise a first spacer, a second spacer, a third spacer, a fourth spacer, and a circulation spacer, the first and second spacers forming a desorption zone gas conduit, the third and fourth spacers forming a cooling zone gas conduit, the circulation spacer forming a circulation zone gas conduit with the second and third spacers, the first and fourth spacers forming an adsorption zone gas conduit.
4. The rotary gas adsorption unit of claim 1, wherein the gas delivery conduit to be heated comprises a first conduit for delivering gas from the cooling zone gas conduit to the heating unit and a second conduit for delivering desorbed gas from the recirculation zone gas conduit to the heating unit; and the pipe wall of the second pipeline is used as a first clapboard.
5. The rotary gas adsorption unit of claim 1, wherein the heated gas delivery conduit is a pipe and the wall of the heated gas delivery conduit acts as a first baffle.
6. The rotary gas adsorption unit of claim 5, wherein the gas transport conduit for heating further comprises a second baffle positioned between the gas conduit for the circulation zone and the gas conduit for the cooling zone.
7. The rotary gas adsorption unit of claim 1 wherein the desorption gas delivery conduit comprises a third conduit for delivering heated desorption gas to the desorption zone gas conduit and a fourth conduit for delivering heated desorption gas to the circulation zone gas conduit; and the pipe wall of the fourth pipeline is used as a first clapboard.
8. The rotary gas adsorption unit of claim 1 wherein the desorption gas transfer conduit is a conduit and the wall of the desorption gas transfer conduit acts as the first baffle.
9. The rotary gas adsorption unit of claim 8, wherein the desorption gas feed conduit further comprises a third partition between the desorption zone gas conduit and the recirculation zone gas conduit.
10. The rotary gas adsorption unit of claim 1, further comprising: and the circulating fan is used for enabling part of desorbed gas to form circulating gas flow between the partition used for forming the gas pipeline of the circulating area and the heating device.
11. The rotary gas adsorption unit of claim 10, wherein the recycle blower is located in the recycle gas conduit.
12. The rotary gas adsorption unit of claim 1, wherein the cooling zone gas duct delivers gas comprising VOC gas to the adsorption side of the rollers; or the cooling area gas pipeline conveys the gas to the roller adsorption side, wherein the gas does not contain VOC gas.
13. A method of operating a rotary gas adsorption unit, comprising:
providing a rotary gas adsorption unit according to any one of claims 1 to 12;
providing a gas comprising a VOC gas;
introducing gas to the roller adsorption side through an adsorption area gas pipeline, adsorbing VOC gas in the adsorption area gas pipeline conveying gas by the rollers to form clean gas after passing through the rollers, outputting the clean gas through an adsorption area output pipeline, introducing gas to the roller adsorption side through a cooling area gas pipeline, outputting the gas through a roller desorption surface, conveying the gas to a heating device through a gas conveying pipeline to be heated, and heating the gas to be heated by the heating device to form desorption gas;
the desorption gas is carried to gyro wheel desorption side by desorption gas pipeline, after the gyro wheel, gets into desorption district gas pipeline and circulation district gas pipeline, wherein, desorption gas in the desorption district gas pipeline is exported, and circulation district gas pipeline's desorption gas is through gyro wheel absorption side entering gyro wheel once more under the effect of separator, after gyro wheel desorption side export, is carried to heating device by the gas pipeline of waiting to heat.
14. The method of claim 13 wherein the temperature of the desorbed gas from the gas conduit of the recirculation zone into the heating device is in the range of: 150-190 ℃; the temperature range of the desorbed gas output from the heating device is: 190-230 ℃.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW445173B (en) * | 1998-07-14 | 2001-07-11 | Seibu Giken Kk | Gas adsorbing concentrator |
| US6328787B1 (en) * | 1998-07-14 | 2001-12-11 | Seibu Giken Co., Ltd. | Apparatus and method for treating gas using a honeycomb rotor having a plurality of desorbing zones |
| CN205659561U (en) * | 2016-05-10 | 2016-10-26 | 西部技研环保节能设备（常熟）有限公司 | Use low concentration VOC contaminated air purifier of catalyst runner |
| CN107537279A (en) * | 2016-06-23 | 2018-01-05 | 杰智环境科技股份有限公司 | Indoor water-soluble airborne molecular contaminants in ground purifier and method |
| CN209490654U (en) * | 2018-12-13 | 2019-10-15 | 上海盛剑环境***科技股份有限公司 | A kind of VOC plant waste gases circulatory system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015339A (en) * | 1996-07-03 | 1998-01-20 | Kobe Steel Ltd | Deodorizing device |
| US6964692B2 (en) * | 2001-02-09 | 2005-11-15 | General Motors Corporation | Carbon monoxide adsorption for carbon monoxide clean-up in a fuel cell system |
-
2019
- 2019-11-14 CN CN201911113094.2A patent/CN112791558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW445173B (en) * | 1998-07-14 | 2001-07-11 | Seibu Giken Kk | Gas adsorbing concentrator |
| US6328787B1 (en) * | 1998-07-14 | 2001-12-11 | Seibu Giken Co., Ltd. | Apparatus and method for treating gas using a honeycomb rotor having a plurality of desorbing zones |
| CN205659561U (en) * | 2016-05-10 | 2016-10-26 | 西部技研环保节能设备（常熟）有限公司 | Use low concentration VOC contaminated air purifier of catalyst runner |
| CN107537279A (en) * | 2016-06-23 | 2018-01-05 | 杰智环境科技股份有限公司 | Indoor water-soluble airborne molecular contaminants in ground purifier and method |
| CN209490654U (en) * | 2018-12-13 | 2019-10-15 | 上海盛剑环境***科技股份有限公司 | A kind of VOC plant waste gases circulatory system |
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