CN213725614U - VOCs adsorption equipment - Google Patents
VOCs adsorption equipment Download PDFInfo
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- CN213725614U CN213725614U CN202021450149.7U CN202021450149U CN213725614U CN 213725614 U CN213725614 U CN 213725614U CN 202021450149 U CN202021450149 U CN 202021450149U CN 213725614 U CN213725614 U CN 213725614U
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a VOCs adsorption equipment, through setting up the baffle in the shell inside, and the baffle divides into inlet channel, air outlet channel and absorption purification chamber with the shell inside, the inside fixed molecular sieve of absorption purification chamber, absorb and purify the chamber and set up first control valve, second control valve with inlet channel, air outlet channel between, absorb and purify the chamber and connect hot gas equipment, exhaust gas recovery case, air-cooled device through pipeline and control valve; therefore, by controlling the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the sixth control valve, when the molecular sieve in one adsorption and purification cavity is desorbed, the molecular sieves in the other adsorption and purification cavities are normally adsorbed, so that the adsorption work can be continuously carried out; the fixed bed structure is provided with the connecting flange at the front end of the air inlet channel and the air outlet channel, so that the connection among a plurality of fixed bed structures is facilitated, and the structure after connection is compact, so that the occupied area is smaller.
Description
Technical Field
The utility model relates to an air purification equipment field, in particular to VOCs adsorption equipment.
Background
Electronics, the semiconductor, petrochemical, trade such as application when carrying out industrial production, can produce a large amount of VOCs gas, therefore, before gaseous emission, need purify it, make gaseous emission standard that reachs, at present, to the gaseous purification of VOCs, utilize molecular sieve to adsorb usually, need pass through the heating desorption after the molecular sieve adsorption saturation, make its adsorption efficiency that resumes, consequently current VOCs adsorption equipment adopts the runner formula usually, set up a desorption district at VOCs adsorption equipment promptly, drive molecular sieve rotates, make it get into the desorption district in proper order and carry out the desorption. However, in this structure, when the processing amount of the VOCs gas needs to be increased, the VOCs adsorption apparatus and the corresponding pipes need to be additionally added, and an additional set of purification channels is formed, so that the installation is inconvenient, and the occupied area is large.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims to provide a VOCs adsorption equipment, when solving the gaseous handling capacity of current VOCs adsorption equipment increase VOCs, the VOCs adsorption equipment installation of increase is inconvenient to area is big problem.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a VOCs adsorption apparatus includes more than one set of fixed bed structure;
the fixed bed structure comprises a shell, a partition board is arranged in the shell, the partition board divides the interior of the shell into an air inlet channel, an air outlet channel and an adsorption purification cavity, the air outlet channel is arranged below or above the air inlet channel, the two adsorption purification cavities are respectively arranged at two sides of the air inlet channel, a first through hole is arranged between the adsorption purification cavity and the air inlet channel, a first control valve is arranged on the first through hole, a second through hole is arranged between the adsorption purification cavity and the air outlet channel, a second control valve is arranged on the second through hole, and a molecular sieve is arranged in the middle of the adsorption purification cavity and between the first control valve and the second control valve;
the adsorption purification device also comprises a hot gas main pipeline and a waste gas recovery main pipeline, wherein the hot gas main pipeline is connected with a hot gas branch pipeline which is respectively communicated with each adsorption purification cavity, the hot gas branch pipeline is connected with a third control valve in series, the waste gas recovery main pipeline is connected with a waste gas recovery branch pipeline which is respectively communicated with each adsorption purification cavity, the waste gas recovery branch pipeline is connected with a fourth control valve in series, the waste gas recovery branch pipeline and the hot gas branch pipeline are respectively arranged at two ends of each adsorption purification cavity, the hot gas main pipeline is connected with hot gas equipment, and the waste gas recovery main pipeline is connected with a waste gas recovery box;
the cold air main pipeline is connected with cold air branch pipelines which are respectively communicated with each adsorption and purification cavity, the cold air branch pipelines are connected to one ends, close to the first through holes, of the adsorption and purification cavities, and a fifth control valve is arranged on each cold air branch pipeline; cover plates are arranged at the tail ends of the air inlet channel and the air outlet channel, and the tail ends of the air inlet channel and the air outlet channel are sealed by the cover plates.
The VOCs adsorption device further comprises a cold air circulation main pipeline, wherein cold air circulation branch pipelines respectively communicated with each adsorption purification cavity are connected to the cold air circulation main pipeline, a sixth control valve is connected to the cold air circulation branch pipelines in series, the cold air circulation branch pipelines and the cold air branch pipelines are respectively arranged at two ends of each adsorption purification cavity, and the tail end of the cold air circulation main pipeline is communicated with the air inlet channel.
In the VOCs adsorption device, a hot air branch pipeline and a cold air branch pipeline are arranged above the shell, and a waste gas recovery branch pipeline and a cold air circulation branch pipeline are arranged below the shell.
In the VOCs adsorption device, the first control valve and the second control valve respectively comprise an air cylinder fixed on the inner wall of the adsorption purification cavity and a valve cover fixed at the tail end of a telescopic rod of the air cylinder, and the valve cover is matched with the corresponding first through hole or the corresponding second through hole.
In the VOCs adsorption device, the first through hole and the second through hole are both provided with convex rings, and the convex rings are arranged on one sides of the first through hole and the second through hole, which are close to the valve cover.
In the VOCs adsorption device, a sealing ring is fixed on one side surface of the valve cover close to the convex ring.
In the VOCs adsorption device, a connecting seat is fixed on the inner wall surface of the shell, and the cylinder body of the cylinder is fixed on the connecting seat.
In the VOCs adsorption device, the inner wall surface of the shell is attached with a heat insulation layer.
In the VOCs adsorption device, the fixed bed structures are more than two groups, and the air inlet channels, the air outlet channels, the hot air main pipeline, the waste gas recovery main pipeline and the cold air main pipeline of all the fixed bed structures are connected in series.
In the VOCs adsorption device, connecting flanges are arranged at the front ends of the air inlet channel and the air outlet channel, and the connecting flanges of the rear group of fixed bed structures are hermetically connected with the rear ends of the air inlet channel and the air outlet channel of the front group of fixed bed structures.
Has the advantages that: a partition board is arranged in a shell, the interior of the shell is divided into an air inlet channel, an air outlet channel and an adsorption purification cavity by the partition board, a molecular sieve is fixed in the adsorption purification cavity, a first control valve and a second control valve are arranged between the adsorption purification cavity and the air inlet channel and between the adsorption purification cavity and the air outlet channel, and the adsorption purification cavity is connected with hot air equipment, a waste gas recovery box and air cooling equipment through pipelines; therefore, through controlling the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the sixth control valve, when the molecular sieve in one adsorption and purification cavity is desorbed, the molecular sieves in the other adsorption and purification cavities are normally adsorbed, so that the continuous adsorption of gas is not influenced, namely, the workshop can continuously work. After the desorption is completed, the first control valve and the second control valve are opened, so that the desorbed molecular sieve continues to enter the adsorption work, and then the molecular sieve in the other adsorption purification cavity can be desorbed by controlling the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the sixth control valve. The fixed bed structure is cuboid-shaped, and the front ends of the air inlet channel and the air outlet channel are provided with the connecting flanges, so that the connection among a plurality of fixed bed structures is facilitated, the capacity of processing the air quantity is increased, and the structure after connection is compact, so that the occupied area is smaller.
Drawings
FIG. 1 is a schematic view showing the structure of a fixed bed structure in which the outer front side plate is removed.
FIG. 2 is a second schematic view of the fixed bed configuration wherein the outer front side plate is removed.
FIG. 3 is a front view of the fixed bed structure with the outer front side plate removed.
Fig. 4 is a first schematic structural diagram of an embodiment of a VOCs adsorption apparatus.
Fig. 5 is a schematic diagram of the second configuration of the VOCs adsorption apparatus provided in fig. 4.
Description of the main element symbols: 1-shell, 1.2-bracket, 1.1-side plate, 1.3-baffle, 2-molecular sieve, 3-adsorption purification cavity, 4-inlet channel, 5-outlet channel, 6-second control valve, 6.1-cylinder, 6.2-valve cover, 7-cold air circulation main pipeline, 8-first control valve, 9-hot air branch pipeline, 10-third control valve, 11-fifth control valve, 12-cold air branch pipeline, 13-first through hole, 14-second through hole, 15-sixth control valve, 16-cold air circulation branch pipeline, 17-waste gas recovery branch pipeline, 18-convex ring, 19-fourth control valve, 20-sealing ring, 21-hot air main pipeline, 22-cold air main pipeline, 23-waste gas recovery main pipeline, 24-cover plate, 25-connecting flange.
Detailed Description
The utility model provides a VOCs adsorption equipment, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the embodiment is lifted to follow reference to the attached drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
Referring to fig. 1-3 and 5, a VOCs adsorption apparatus includes a fixed bed configuration; the fixed bed structure includes shell 1, 1 inside baffle 1.3 that is equipped with of shell, and baffle 1.3 purifies chamber 3 with 1 inside inlet channel 4 that falls into of shell, outlet channel 5 and absorption, outlet channel 5 establishes the below at inlet channel 4, outlet channel 5 and inlet channel 4 parallel arrangement, and gas flow is opposite, and in practical application, outlet channel 5 establishes and also can change in inlet channel 4 position, and outlet channel 5 establishes the top at inlet channel 4 promptly. The adsorption purification cavities 3 are two and are respectively arranged at two sides of the air inlet channel 4, and the structure and the pipeline connection of the two adsorption purification cavities 3 are the same. Be equipped with first through-hole 13 between absorption purification chamber 3 and inlet channel 4, be equipped with first control valve 8 on first through-hole 13, be equipped with second through-hole 14 between absorption purification chamber 3 and the outlet channel 5, be equipped with second control valve 6 on the second through-hole 14, absorb purification chamber 3 middle part and be equipped with molecular sieve 2 between first control valve 8 and second control valve 6. The gas outlet channel 5 is communicated with the gas inlet channel 4 through the adsorption purification cavity 3 and the arrangement of the first through hole 13 and the second through hole 14, and the molecular sieve 2 is arranged in the middle of the adsorption purification cavity 3, so that gas enters the adsorption purification cavity 3 from the gas inlet channel 4, is adsorbed by the molecular sieve 2 and then enters the gas outlet channel 5 to be discharged; wherein the first control valve 8 and the second control valve 6 control the gas flow in the adsorption purification chamber 3. And the air inlet channel 4, the air outlet channel 5 and the adsorption purification cavity 3 form a cuboid shape, so that the structure is compact. Cover plates 24 are arranged at the tail ends of the air inlet channel 4 and the air outlet channel 5, the cover plates 24 are fixed on the shell 1 through screws, and the cover plates seal the tail ends of the air inlet channel and the air outlet channel, so that gas enters the adsorption purification cavity 3.
Specifically, still include hot gas trunk line 21, waste gas recovery trunk line 23, be connected with on the hot gas trunk line 21 respectively with every hot gas branch pipeline 9 that adsorbs purification chamber 3 intercommunication, third control valve 10 has concatenated on the hot gas branch pipeline 9, be connected with on the waste gas recovery trunk line 23 respectively with every waste gas recovery branch pipeline 17 that adsorbs purification chamber 3 intercommunication, fourth control valve 19 has concatenated on the waste gas recovery branch pipeline 17, and waste gas recovery branch pipeline 17 establishes respectively at the both ends that adsorb purification chamber 3 with hot gas branch pipeline 9, hot gas trunk line 21 is connected with hot gas equipment, waste gas recovery trunk line 23 is connected with waste gas recovery case. The hot gas equipment and the waste gas recovery box are used for desorbing the VOCs gas adsorbed by the molecular sieve 2, namely, when the VOCs gas adsorbed by the molecular sieve 2 is desorbed, the corresponding first control valve 8 and second control valve 6 of the adsorption purification cavity 3 are in a closed state, the hot gas main pipeline 21 is connected with the hot gas equipment, hot gas is introduced into the adsorption purification cavity 3, and the molecular sieve 2 is heated and desorbed; when heating desorption to molecular sieve 2, waste gas recovery trunk line 23 is connected with the waste gas recovery case, and the gaseous VOCs who will desorb and the steam that is used for the desorption discharge to the waste gas recovery case.
Specifically, still include cold wind trunk line 22 and cold wind trunk line 7 that circulates, be connected with on the cold wind trunk line 22 respectively with every adsorb the cold wind small transfer line 12 that purifies chamber 3 and communicate, fifth control valve 11 has concatenated on the cold wind small transfer line 12, be connected with on the cold wind trunk line 7 respectively with every adsorb the cold wind branch line 16 that purifies chamber 3 and communicate, sixth control valve 15 has concatenated on the cold wind branch line 16, and cold wind branch line 16 and cold wind branch line 12 establish respectively at the both ends that adsorb and purify chamber 3, cold wind trunk line 22 is connected with air cooling equipment. The air cooling equipment is used for providing cold air for the desorbed molecular sieve 2 to cool so as to recover the adsorption capacity of the molecular sieve; that is, the molecular sieve 2 is heated during desorption, and therefore has a high temperature, and in order to recover the adsorption capacity, the molecular sieve 2 after desorption needs to be cooled, and therefore, the adsorption purification chamber 3 is cooled by introducing cold air through the cold air main pipe 22, and when cold air is introduced, the discharged hot air is discharged through the cold air circulation main pipe 7.
Preferably, the tail end of the cold air circulation main pipeline 7 is communicated with the air inlet channel 4, namely, when cold air passes through, the exhausted hot air enters the air inlet channel 4, is adsorbed by the molecular sieve 2 and then is exhausted from the air outlet channel 5. In practical application, the tail end of the cold air circulating main pipeline 7 is communicated with the air outlet channel, in other words, the cold air circulating main pipeline 7, the cold air circulating branch pipeline 16 and the sixth control valve 15 are not arranged, when cold air is introduced, the second control valve 6 is in an open state, and the cold air is directly discharged from the second through hole 14 after passing through the molecular sieve.
In the above, since there are two adsorption purification chambers 3, by controlling the first control valve 8, the second control valve 6, the third control valve 10, the fourth control valve 19, the fifth control valve 11, and the sixth control valve 15, when the molecular sieve 2 in one adsorption purification chamber 3 is desorbed, the molecular sieves 2 in the other adsorption purification chambers 3 are normally adsorbed, so that the continuous adsorption of gas is not affected, i.e. the workshop using the VOCs adsorption apparatus can continuously work. After the desorption is completed, the first control valve 8 and the second control valve 6 are opened, so that the desorbed molecular sieve 2 continues to enter the adsorption operation, and then the molecular sieve 2 in the other adsorption purification cavity 3 can be desorbed by controlling the first control valve 8, the second control valve 6, the third control valve 10, the fourth control valve 19, the fifth control valve 11 and the sixth control valve 15.
In the above, the hot air device, the waste gas recycling box and the air cooling device may be external devices, and corresponding structures are not shown in the drawings. Wherein, the hot gas equipment can also be equipment for providing steam, namely, the steam is used for heating and desorbing the molecular sieve; the air cooling device can also be a device for providing cold air, namely, the molecular sieve is cooled by the cold air.
In a preferred embodiment, the hot air branch duct 9 and the cold air branch duct 12 are provided above the housing 1, and the exhaust gas recovery branch duct 17 and the cold air circulation branch duct 16 are provided below the housing 1.
Referring to fig. 1 and 3, in a preferred embodiment, each of the first control valve 8 and the second control valve 6 includes a cylinder 6.1 fixed on the inner wall of the adsorption purification chamber 3, and a valve cover 6.2 fixed on the end of the telescopic rod of the cylinder 6.1, and the valve cover 6.2 is matched with the corresponding first through hole 13 or the second through hole 14. The third control valve 10, the fourth control valve 19, the fifth control valve 11 and the sixth control valve 15 may be ordinary shut-off valves.
Referring to fig. 2 and 3, in a preferred embodiment, the first through hole 13 and the second through hole 14 are both provided with a protruding ring 18, the protruding ring 18 is arranged on one side of the first through hole 13 and the second through hole 14 close to the valve cover 6.2, and a sealing ring 20 is fixed on one side of the valve cover 6.2 close to the protruding ring 18, so that the valve cover 6.2 can seal the corresponding first through hole 13 and the corresponding second through hole 14 through the arrangement of the protruding ring 18 and the sealing ring 20.
In a preferred embodiment, when the inner cavity of the adsorption purification cavity 3 is enlarged, that is, the distance between the cylinder body of the cylinder 6.1 and the inner wall of the adsorption purification cavity 3 is larger, the cylinder body of the cylinder 6.1 is fixed on the connecting seat by fixing the connecting seat on the inner wall surface of the housing 1, so that the cylinder body of the cylinder 6.1 and the adsorption purification cavity 3 are fixed.
Referring to fig. 1, preferably, the housing 1 includes a bracket 1.2 and a side plate 1.1, the side plate 1.1 is fixed on the bracket 1.2 by screws, and the connecting seat and the cover plate 24 are fixed on the side plate 1.1 by screws. In practical application, the shell can also be formed by cutting, bending and welding the rib plate.
In a preferred embodiment, an insulating layer (not shown) is attached to the inner wall surface of the casing, and the insulating layer can be rock wool or other heat insulating materials, wherein the insulating layer covers the entire inner wall surface of the casing, so that people can be prevented from being scalded when touching the casing due to overhigh temperature outside the casing in use.
Referring to fig. 1-3, in the above-mentioned VOCs adsorption apparatus, the fixed bed structure may be a group, that is, when a small amount of air is processed, the fixed bed structure may be adopted, that is, the fixed bed structure has the capability of processing all the air, and thus, one of the above-mentioned fixed bed structures forms one VOCs adsorption apparatus.
Referring to fig. 4 and 5, in the above-mentioned VOCs adsorption apparatus, there are more than two groups of fixed bed structures, and the inlet passage 4, the outlet passage 5, the main hot gas pipe 21, the main waste gas recovery pipe 23, and the main cold air pipe 22 of all the fixed bed structures are connected in series. In other words, the number of the fixed bed structures can be increased according to the actual air volume to be treated, so that the adsorption requirement of the VOCs gas can be met. Wherein, the inlet channels 4 and the outlet channels 5 of the plurality of fixed bed structures are arranged in series, that is, the plurality of fixed bed structures are correspondingly placed together according to the inlet channels 4 and the outlet channels 5, and then fixed, and the cover plate 24 is fixed at the tail ends of the inlet channels 4 and the outlet channels 5 of the last fixed bed structure. The assembly is convenient and simple, and the assembled structure is still compact. In order to facilitate the connection of other pipelines, all the corresponding hot air main pipeline 21, waste gas recovery main pipeline 23 and cold air main pipeline 22 are connected in series.
In the above, according to actual conditions, by controlling the first control valve 8, the second control valve 6, the third control valve 10, the fourth control valve 19, the fifth control valve 11, and the sixth control valve 15, when the molecular sieve 2 in a part of the adsorption purification chamber 3 is desorbed, another part of the molecular sieve 2 in the adsorption purification chamber 3 is normally adsorbed, so that continuous adsorption of gas is not affected.
In a preferred embodiment, in order to facilitate the connection between the plurality of fixed bed structures, a connecting flange 25 is provided at the front end of the inlet channel 4 and the outlet channel 5, and the rear end of the inlet channel 4 and the rear end of the outlet channel 5 are hermetically connected with the connecting flange 25. The connecting flange 25 is used primarily for the sealing connection between the fixed bed structure and the fixed bed structure, and it projects beyond the fixed bed structure by a short distance and is fixed on the side of the fixed bed structure. For example, when two or more fixed bed structures are connected, the connection flange 25 of the latter fixed bed structure abuts against the rear wall surface of the latter fixed bed structure, corresponds to the rear ends of the gas inlet duct 4 and the gas outlet duct 5, and further fixes the fixed bed structure at the side surface, thereby achieving the sealing fixation between the fixed bed structure and the fixed bed structure. For example, when two or more fixed bed structures are connected, the connecting flange 25 of the latter fixed bed structure is inserted into the inlet passage 4 and the outlet passage 5 corresponding to the latter fixed bed structure, and the outer wall surface of the connecting flange 25 is fitted to the inner wall surfaces of the inlet passage 4 and the outlet passage 5, thereby achieving the sealing fixation between the fixed bed structure and the fixed bed structure.
In the utility model, the partition board 1.3 is arranged inside the shell 1, and the partition board 1.3 divides the inside of the shell 1 into the air inlet channel 4, the air outlet channel 5 and the adsorption purification cavity 3, the molecular sieve 2 is fixed inside the adsorption purification cavity 3, the first control valve 8 and the second control valve 6 are arranged between the adsorption purification cavity 3 and the air inlet channel 4 and between the adsorption purification cavity 3 and the air outlet channel 5, and the adsorption purification cavity 3 is connected with hot air equipment, a waste gas recovery box and air cooling equipment through pipelines; therefore, through the control of the first control valve 8, the second control valve 6, the third control valve 10, the fourth control valve 19, the fifth control valve 11 and the sixth control valve 15, when the molecular sieve 2 in one adsorption purification chamber 3 is desorbed, the molecular sieves 2 in the other adsorption purification chambers 3 are normally adsorbed, so that the continuous adsorption of gas is not influenced, i.e. the workshop can be continuously operated. After the desorption is completed, the first control valve 8 and the second control valve 6 are opened, so that the desorbed molecular sieve 2 continues to enter the adsorption operation, and then the molecular sieve 2 in the other adsorption purification cavity 3 can be desorbed by controlling the first control valve 8, the second control valve 6, the third control valve 10, the fourth control valve 19, the fifth control valve 11 and the sixth control valve 15. The fixed bed structure is cuboid, and the front ends of the air inlet channel 4 and the air outlet channel 5 are provided with the connecting flanges 25, so that the connection among a plurality of fixed bed structures is facilitated, the processing capacity of the air quantity is increased, and the structure after connection is compact, so that the occupied area is smaller.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (10)
1. A VOCs adsorption apparatus, comprising more than one set of fixed bed structure;
the fixed bed structure comprises a shell, a partition board is arranged in the shell, the partition board divides the interior of the shell into an air inlet channel, an air outlet channel and an adsorption purification cavity, the air outlet channel is arranged below or above the air inlet channel, the two adsorption purification cavities are respectively arranged at two sides of the air inlet channel, a first through hole is arranged between the adsorption purification cavity and the air inlet channel, a first control valve is arranged on the first through hole, a second through hole is arranged between the adsorption purification cavity and the air outlet channel, a second control valve is arranged on the second through hole, and a molecular sieve is arranged in the middle of the adsorption purification cavity and between the first control valve and the second control valve;
the adsorption purification device also comprises a hot gas main pipeline and a waste gas recovery main pipeline, wherein the hot gas main pipeline is connected with a hot gas branch pipeline which is respectively communicated with each adsorption purification cavity, the hot gas branch pipeline is connected with a third control valve in series, the waste gas recovery main pipeline is connected with a waste gas recovery branch pipeline which is respectively communicated with each adsorption purification cavity, the waste gas recovery branch pipeline is connected with a fourth control valve in series, the waste gas recovery branch pipeline and the hot gas branch pipeline are respectively arranged at two ends of each adsorption purification cavity, the hot gas main pipeline is connected with hot gas equipment, and the waste gas recovery main pipeline is connected with a waste gas recovery box;
the cold air main pipeline is connected with cold air branch pipelines which are respectively communicated with each adsorption and purification cavity, the cold air branch pipelines are connected to one ends, close to the first through holes, of the adsorption and purification cavities, and a fifth control valve is arranged on each cold air branch pipeline; cover plates are arranged at the tail ends of the air inlet channel and the air outlet channel, and the tail ends of the air inlet channel and the air outlet channel are sealed by the cover plates.
2. A VOCs adsorbing device as claimed in claim 1, further comprising a cold air circulating main pipe, wherein a cold air circulating branch pipe is connected to the cold air circulating main pipe and is respectively communicated with each adsorption purification chamber, a sixth control valve is connected to the cold air circulating branch pipe in series, the cold air circulating branch pipe and the cold air branch pipe are respectively arranged at two ends of the adsorption purification chambers, and the tail end of the cold air circulating main pipe is communicated with the air inlet channel or the air outlet channel.
3. A VOCs adsorption apparatus as claimed in claim 1, wherein the hot gas branch conduit and the cold gas branch conduit are provided above the enclosure, and the exhaust gas recovery branch conduit and the cold gas circulation branch conduit are provided below the enclosure.
4. The VOCs adsorption device of claim 1, wherein each of the first and second control valves comprises a cylinder fixed to an inner wall of the adsorption purification chamber, and a valve cover fixed to an end of a telescopic rod of the cylinder, the valve cover being engaged with the corresponding first or second through hole.
5. The VOCs adsorbing device according to claim 4, wherein the first through hole and the second through hole are provided with a protruding ring, and the protruding rings are arranged on the sides of the first through hole and the second through hole close to the valve cover.
6. A VOCs adsorption device according to claim 5 wherein the valve cover has a sealing ring secured to a side of the valve cover adjacent the collar.
7. The VOCs adsorbing device according to claim 6, wherein a connecting seat is fixed to an inner wall surface of the housing, and a cylinder body of the cylinder is fixed to the connecting seat.
8. The VOCs adsorption device of claim 7, wherein a thermal insulation layer is attached to an inner wall surface of the housing.
9. A VOCs adsorption unit according to any one of claims 2-8 wherein there are more than two sets of fixed bed structures and all the inlet channels, outlet channels, main hot gas conduits, main waste gas recovery conduits and main cold air conduits of the fixed bed structures are connected in series.
10. The VOCs adsorption device of claim 9, wherein the inlet and outlet channels are provided with flanges at the front ends thereof, and the flanges of the latter group of fixed bed structures are hermetically connected to the rear ends of the inlet and outlet channels of the former group of fixed bed structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021450149.7U CN213725614U (en) | 2020-07-21 | 2020-07-21 | VOCs adsorption equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021450149.7U CN213725614U (en) | 2020-07-21 | 2020-07-21 | VOCs adsorption equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213725614U true CN213725614U (en) | 2021-07-20 |
Family
ID=76815097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021450149.7U Active CN213725614U (en) | 2020-07-21 | 2020-07-21 | VOCs adsorption equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213725614U (en) |
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2020
- 2020-07-21 CN CN202021450149.7U patent/CN213725614U/en active Active
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