CN217961927U - High concentration dichloromethane adsorbs recovery unit - Google Patents
High concentration dichloromethane adsorbs recovery unit Download PDFInfo
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- CN217961927U CN217961927U CN202122990256.XU CN202122990256U CN217961927U CN 217961927 U CN217961927 U CN 217961927U CN 202122990256 U CN202122990256 U CN 202122990256U CN 217961927 U CN217961927 U CN 217961927U
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Abstract
The utility model relates to a high concentration dichloromethane adsorbs recovery unit, specifically speaking is a high concentration dichloromethane adsorbs recovery unit. It includes one-level adsorption equipment and second grade adsorption equipment, its characterized in that: the first-stage adsorption device comprises at least two adsorbers which are respectively a first adsorber (4) and a second adsorber (5), inlets of the first adsorber (4) and the second adsorber (5) are connected with a tail gas pipe, and exhaust ports of the first adsorber (4) and the second adsorber (5) are connected with an inlet of a heat exchanger (7) of the second-stage adsorption device; it has solved the current device maintenance cost height, and discharge unstable problem up to standard.
Description
Technical Field
The utility model relates to an organic waste gas recovery device, specifically speaking are high concentration dichloromethane adsorbs recovery unit.
Background
With the national emphasis on environmental protection, the emission standards of various regions on volatile organic gases (VOCs) in industrial waste gas are becoming stricter. For the treatment of industrial waste gas discharged by high-concentration dichloromethane, the conventional device is large in configuration and high in energy consumption, and the emission standard-reaching requirement is difficult to meet. Therefore, the invention of the high-concentration dichloromethane adsorption recovery device is very beneficial.
Disclosure of Invention
The utility model aims to solve the technical problem that is exactly to prior art's defect, provide a high concentration dichloromethane adsorbs recovery unit, it has overcome current device maintenance cost height, and discharge up to standard unstable problem.
The technical scheme of the utility model is realized like this: it comprises a first-stage adsorption device and a second-stage adsorption device, wherein the first-stage adsorption device comprises two adsorbers which are respectively a first adsorber and a second adsorber,
inlets of the first adsorber and the second adsorber are connected with a tail gas pipe, and exhaust ports of the first adsorber and the second adsorber are connected with an inlet of a heat exchanger of the secondary adsorption device; the second-stage adsorption device comprises a second-stage adsorption device heat exchanger and two adsorbers, the second-stage adsorption device heat exchanger is respectively a third adsorber and a fourth adsorber, the outlet of the second-stage adsorption drying fan is connected with the dry gas inlets of the third adsorber and the fourth adsorber through pipelines, and the outlet of the second-stage adsorption device heat exchanger is connected with the inlets of the third adsorber and the fourth adsorber.
The utility model discloses a better technical scheme is: the dry gas exhaust ports of the first-stage adsorber and the second-stage adsorber are connected with the inlet of the auxiliary heat exchanger through a pipeline, the outlet of the auxiliary heat exchanger is connected with the inlet of the drying fan, and the outlet of the drying fan is connected with the dry gas inlet of the second-stage adsorber through a pipeline. The first-stage adsorption device further comprises a tail gas fan, an outlet of the tail gas fan is connected with an inlet of the first heat exchanger through a pipeline, and an outlet of the first heat exchanger is connected with an air inlet of the first adsorber.
The utility model discloses a more preferred technical scheme is: and an air inlet fan of the secondary adsorption device is arranged in front of the heat exchanger of the secondary adsorption device. The heat exchanger of the second-stage adsorption device is also provided with a first auxiliary heat exchanger, and the second-stage adsorber and the dry gas exhaust port are connected with an inlet of the first auxiliary heat exchanger through a pipeline. The heat exchanger of the second-stage adsorption device is also provided with a second auxiliary heat exchanger, the inlet of the second auxiliary heat exchanger is connected with the outlet of the drying fan, and the outlet of the second auxiliary heat exchanger is connected with the inlet of the adsorber of the second-stage adsorption device.
The utility model discloses can not adorn first supplementary heat exchanger and the supplementary heat exchanger of second according to the technological requirement of difference, can only adorn first supplementary heat exchanger, also can be equipped with first supplementary heat exchanger and the supplementary heat exchanger of second simultaneously.
The utility model discloses handle with the two-stage adsorption process, the one-level is high-efficient to adsorb and is retrieved and reduce the energy consumption, and second grade control row's mouth concentration satisfies the emission index requirement, and every grade of absorption pretreatment is controlled the temperature and is controlled humidity, improves adsorption efficiency, reduces the steam energy consumption. The two-stage treatment process is similar in principle, the treatment capacity is distributed according to the working condition, the device configuration is possibly different, and different control parameters can be set. Through two-stage process treatment, the purposes of stable operation of a production device, methylene dichloride recovery and discharge to reach the standard can be met by using granular activated carbon for adsorption and desorption, and the device is convenient to maintain, low in maintenance cost, energy-saving and discharges to reach the standard.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings: as shown in fig. 1, the present invention comprises a first-stage adsorption device and a second-stage adsorption device, wherein the first-stage adsorption device comprises two adsorbers, namely a first adsorber 4 and a second adsorber 5, respectively, inlets of the first adsorber 4 and the second adsorber 5 are connected with an exhaust pipe, and exhaust ports of the first adsorber 4 and the second adsorber 5 are connected with an inlet of a heat exchanger 7 of the second-stage adsorption device; the second-stage adsorption device comprises a second-stage adsorption device heat exchanger 7, two adsorbers, namely a third adsorber 8, a fourth adsorber 9 and a second-stage adsorption device drying fan 10, the outlet of the second-stage adsorption device drying fan 10 is connected with the drying gas inlets of the third adsorber 8 and the fourth adsorber 9 through pipelines, and the outlet of the second-stage adsorption device heat exchanger 7 is connected with the inlets of the third adsorber 8 and the fourth adsorber 9. The dry gas exhaust ports of the first adsorber 4 and the second adsorber 5 are connected with the inlet of an auxiliary heat exchanger 6 through pipelines, the outlet of the auxiliary heat exchanger 6 is connected with the inlet of a drying fan 3, and the outlet of the drying fan 3 is connected with the dry gas inlets of the first adsorber 4 and the second adsorber 5 through pipelines; the primary adsorption device further comprises a tail gas fan 1, an outlet of the tail gas fan 1 is connected with an inlet of the first heat exchanger 2 through a pipeline, and an outlet of the first heat exchanger 2 is connected with an air inlet of the first adsorber 4.
As shown in fig. 2, the better embodiment of the present invention is: and an air inlet fan 12 of the secondary adsorption device is arranged in front of the heat exchanger 7 of the secondary adsorption device. The heat exchanger of the second-stage adsorption device is also provided with a first auxiliary heat exchanger 11, and dry gas exhaust ports of a third adsorber 8 and a fourth adsorber 9 are connected with an inlet of the first auxiliary heat exchanger 11 through a pipeline; the heat exchanger of the second-stage adsorption device is also provided with a second auxiliary heat exchanger 13, the inlet of the second auxiliary heat exchanger 13 is connected with the outlet of the drying fan 10, and the outlet of the second auxiliary heat exchanger 13 is connected with the inlets of the third adsorber 8 and the fourth adsorber 9. The connection of each device of the second-stage adsorption device is the same as that of the first-stage adsorption device.
As shown in fig. 3, another embodiment of the present invention is: the front of the heat exchanger 7 of the secondary adsorption device can be provided with no air inlet fan 12 of the secondary adsorption device. The above-mentioned parts not described in detail are prior art.
Claims (6)
1. The utility model provides a high concentration dichloromethane adsorbs recovery unit, it includes one-level adsorption equipment and second grade adsorption equipment, its characterized in that: the first-stage adsorption device comprises two adsorbers, namely a first adsorber (4) and a second adsorber (5), inlets of the first adsorber (4) and the second adsorber (5) are connected with a tail gas pipe, and exhaust ports of the first adsorber (4) and the second adsorber (5) are connected with an inlet of a heat exchanger (7) of the second-stage adsorption device; the second-stage adsorption device comprises a second-stage adsorption device heat exchanger (7), two adsorbers, a third adsorber (8), a fourth adsorber (9) and a second-stage adsorption device drying fan (10), wherein the outlet of the second-stage adsorption device drying fan (10) is connected with the drying gas inlet of the third adsorber (8) and the drying gas inlet of the fourth adsorber (9) through a pipeline, and the outlet of the second-stage adsorption device heat exchanger (7) is connected with the inlets of the third adsorber (8) and the fourth adsorber (9).
2. The high concentration dichloromethane adsorption recovery device according to claim 1, characterized in that: the dry gas exhaust ports of the first adsorber (4) and the second adsorber (5) are connected with the inlet of the auxiliary heat exchanger (6) through pipelines, the outlet of the auxiliary heat exchanger (6) is connected with the inlet of the drying fan (3), and the outlet of the drying fan (3) is connected with the dry gas inlets of the first adsorber (4) and the second adsorber (5) through pipelines.
3. The high concentration dichloromethane adsorption recovery device according to claim 1, characterized in that: the primary adsorption device further comprises a tail gas fan (1), an outlet of the tail gas fan (1) is connected with an inlet of the first heat exchanger (2) through a pipeline, and an outlet of the first heat exchanger (2) is connected with an air inlet of the first adsorber (4).
4. The high concentration dichloromethane adsorption recovery device according to claim 1, characterized in that: and an air inlet fan (12) of the secondary adsorption device is arranged in front of the heat exchanger (7) of the secondary adsorption device.
5. The high concentration methylene chloride adsorption recovery device according to claim 1, wherein: the heat exchanger of the second-stage adsorption device is also provided with a first auxiliary heat exchanger (11), and dry gas exhaust ports of a third adsorber (8) and a fourth adsorber (9) are connected with an inlet of the first auxiliary heat exchanger (11) through a pipeline.
6. The high concentration dichloromethane adsorption recovery device according to claim 1, characterized in that: the heat exchanger of the second-stage adsorption device is also provided with a second auxiliary heat exchanger (13), the inlet of the second auxiliary heat exchanger (13) is connected with the outlet of a drying fan (10) of the second-stage adsorption device, and the outlet of the second auxiliary heat exchanger (13) is connected with the inlets of a third adsorber (8) and a fourth adsorber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990256.XU CN217961927U (en) | 2021-12-01 | 2021-12-01 | High concentration dichloromethane adsorbs recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990256.XU CN217961927U (en) | 2021-12-01 | 2021-12-01 | High concentration dichloromethane adsorbs recovery unit |
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| Publication Number | Publication Date |
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| CN217961927U true CN217961927U (en) | 2022-12-06 |
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| CN202122990256.XU Active CN217961927U (en) | 2021-12-01 | 2021-12-01 | High concentration dichloromethane adsorbs recovery unit |
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2021
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