CN218012075U - Waste gas treatment unit and system of panel purifying cabin - Google Patents
Waste gas treatment unit and system of panel purifying cabin Download PDFInfo
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- CN218012075U CN218012075U CN202221976820.0U CN202221976820U CN218012075U CN 218012075 U CN218012075 U CN 218012075U CN 202221976820 U CN202221976820 U CN 202221976820U CN 218012075 U CN218012075 U CN 218012075U
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- waste gas
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Abstract
The utility model discloses a waste gas treatment unit and system in panel purifying cabin relates to panel clarification plant technical field, and it can at least the part solve probably to produce the dislocation between the adjacent ceramic catalysis piece among the prior art, leads to the not good problem of catalytic effect. The utility model provides an exhaust-gas treatment unit of panel purifying cabin, including at least two ceramic catalysis pieces, the honeycomb passageway of ceramic catalysis piece all sets up along same direction, and ceramic catalysis piece is interval to set up in proper order; the ceramic catalyst is characterized by also comprising at least one sealing connecting sleeve, wherein two ends of each sealing connecting sleeve are respectively connected with two adjacent ceramic catalyst blocks in a sealing manner.
Description
Technical Field
The utility model relates to a panel clarification plant technical field, concretely relates to waste gas treatment unit and system in panel purifying cabin.
Background
At present, artificial boards contain a large amount of volatile substances such as formaldehyde and volatile hydrocarbons, and in order to purify formaldehyde in boards, current board purification equipment generally accelerates the volatilization of formaldehyde in boards by making artificial boards in a high-temperature environment, but if high-temperature waste gas after board purification is directly discharged into the atmosphere, environmental pollution is caused, and therefore, waste gas treatment equipment needs to be arranged at an exhaust end of the board purification equipment.
The waste gas treatment technology comprises a recovery technology and a destruction technology, and in consideration of the actual structure and space conditions of the plate purification equipment, the waste gas treatment of the plate purification equipment at present mainly adopts a catalytic incineration method in the destruction technology to treat low-concentration waste gas discharged by the plate purification equipment, and because the temperature of the waste gas discharged by the plate purification equipment is generally not high and the gas flow is not large, a honeycomb ceramic catalytic block is generally selected as a catalyst. For improving catalytic effect, consequently, it is generally that a plurality of ceramic catalysis pieces set gradually for waste gas loops through a plurality of ceramic catalysis pieces, in order to reach the catalytic effect of preferred, but because ceramic catalysis piece's honeycomb holes are less, consequently, honeycomb holes between the ceramic catalysis piece cause the dislocation easily, form the honeycomb airflow channel that does not communicate, lead to waste gas when catalyzed not unblocked enough easily, catalytic effect is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waste gas treatment unit and system in panel clean room for probably produce the dislocation between the adjacent ceramic catalysis piece among the solution prior art, lead to the not good problem of catalytic effect.
In order to solve the technical problem, the utility model discloses a following scheme:
one aspect of the utility model provides a waste gas treatment unit of a plate purification cabin, which comprises at least two ceramic catalysis blocks, wherein honeycomb channels of the ceramic catalysis blocks are all arranged along the same direction, and the ceramic catalysis blocks are arranged at intervals in sequence; the ceramic catalyst is characterized by also comprising at least one sealing connecting sleeve, wherein two ends of each sealing connecting sleeve are respectively connected with two adjacent ceramic catalyst blocks in a sealing manner.
Optionally, the material of the sealing connecting sleeve comprises high-temperature-resistant soft rubber, and the adjacent ceramic catalytic blocks are in soft sealing connection through the sealing connecting sleeve.
Optionally, the shape of the sealing connecting sleeve comprises a square ring shape matched with the shape of the ceramic catalytic block, and the sealing connection comprises clamping and bonding.
Optionally, the ceramic catalytic block is a precious metal ceramic catalytic block; the range of the spacing between the ceramic catalytic blocks is as follows: 1cm to 10cm, the length scope of the sealed connecting sleeve along the honeycomb channel direction is: 5cm to 20cm.
Another aspect of the present invention provides a waste gas treatment system for a panel purification cabin, comprising any one of the above waste gas treatment units for a panel purification cabin, and further comprising a waste gas treatment cabin for receiving waste gas discharged from an air outlet end of the purification cabin, wherein at least one waste gas treatment channel is arranged in the waste gas treatment cabin;
the waste gas treatment unit is arranged in the waste gas treatment channel, and the ceramic catalytic blocks at the two ends of the waste gas treatment unit are respectively connected to the two ends of the waste gas treatment channel in a sealing manner.
Optionally, the exhaust gas temperature measuring device further comprises at least one first temperature measuring head and at least one second temperature measuring head, wherein the first temperature measuring head is arranged at the upstream of the second temperature measuring head along the exhaust gas flowing direction;
the first temperature measuring head is arranged at the air inlet end of the waste gas treatment channel or/and the sealing connecting sleeve; the second temperature measuring head is arranged at the air outlet end of the waste gas treatment channel or/and the sealing connecting sleeve.
Optionally, the exhaust gas treatment cabin comprises a cabin body and a cabin cover, and the connection mode of the cabin body and the cabin cover comprises detachable connection and openable connection.
Optionally, sealing rings are sleeved on the ceramic catalytic blocks at the two ends of the waste gas treatment unit; the bottom surface and the two side surfaces of the sealing ring are clamped at the end part of the cabin body, the top surface of the sealing ring is higher than the top surface of the cabin body, and the cabin cover can be opened and closed and is pressed on the cabin body.
Optionally, heat insulation interlayers are arranged in both the cabin body and the cabin cover.
Optionally, when the number of the waste gas treatment channels is larger than one, a plurality of the waste gas treatment channels are arranged side by side, and a partition plate used for separating the adjacent waste gas treatment channels is further arranged in the waste gas treatment cabin.
The utility model has the advantages that:
the utility model discloses a waste gas treatment unit of a panel purifying cabin, which comprises at least two ceramic catalytic blocks, wherein honeycomb channels of the ceramic catalytic blocks are all arranged along the same direction, and the ceramic catalytic blocks are arranged at intervals in sequence; the ceramic catalyst is characterized by also comprising at least one sealing connecting sleeve, wherein two ends of each sealing connecting sleeve are respectively connected with two adjacent ceramic catalyst blocks in a sealing manner.
The function is as follows: because ceramic catalysis piece interval sets up in proper order, simultaneously through setting up sealed adapter sleeve, and adjacent ceramic catalysis piece can be through sealed adapter sleeve sealing connection, consequently, can solve the honeycomb passageway dislocation between adjacent ceramic catalysis piece to the waste gas flow speed that leads to reduces, the problem that exhaust-gas treatment efficiency reduces.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural view of a second embodiment of the present invention;
fig. 4 is a schematic perspective view of a second embodiment of the present invention.
Description of the reference numerals:
1-ceramic catalytic block, 101-honeycomb channel, 2-sealed connecting sleeve, 3-waste gas treatment cabin, 31-waste gas treatment channel, 32-cabin, 33-cabin cover, 34-heat preservation interlayer, 35-clapboard, 41-first temperature measuring head, 42-second temperature measuring head and 5-sealing ring.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. are directions or positional relationships based on the directions or positional relationships shown in the drawings, or directions or positional relationships conventionally placed when the products of the present invention are used, and are only for convenience of description of the present invention and simplification of the description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The invention is explained in detail below with reference to the figures and with reference to exemplary embodiments:
the first embodiment is as follows:
referring to fig. 1 and 2, the exhaust gas treatment unit of the plate purifying cabin comprises at least two ceramic catalytic blocks 1, wherein honeycomb channels 101 of the ceramic catalytic blocks 1 are arranged along the same direction, and the ceramic catalytic blocks 1 are sequentially arranged at intervals; the ceramic catalyst support also comprises at least one sealing connecting sleeve 2, and two ends of each sealing connecting sleeve 2 are respectively connected with two adjacent ceramic catalyst blocks 1 in a sealing manner. The ceramic catalytic block 1 in the embodiment is the existing precious metal honeycomb ceramic catalytic block 1 on the market, and the ceramic catalytic block 1 is a cube with the length, width and height of 150mm, and can work in a high-temperature environment of 250-550 ℃ for a long time. Referring to fig. 1 and 2, in the present embodiment, the exhaust gas treatment unit includes four ceramic catalytic blocks 1 sequentially arranged at intervals and three sealing connection sleeves 2. Through setting up a plurality of ceramic catalysis pieces 1 that the interval set up in proper order, and carry out sealing connection through sealed adapter sleeve 2 before adjacent ceramic catalysis piece 1 for waste gas can loop through a plurality of ceramic catalysis pieces 1, the catalytic time of extension waste gas ensures the catalytic effect of waste gas, and simultaneously, because adjacent ceramic catalysis piece 1 interval sets up, consequently, waste gas can guarantee the exhaust flow rate when looping through a plurality of ceramic catalysis pieces 1, ensures the treatment effeciency of waste gas.
Specifically, the material of the sealing connecting sleeve 2 comprises high-temperature-resistant soft glue, and the adjacent ceramic catalytic blocks 1 are in soft sealing connection through the sealing connecting sleeve 2. The adjacent ceramic catalytic blocks 1 are in soft sealing connection through the sealing connecting sleeves 2, so that the whole waste gas treatment unit has certain flexibility, and the waste gas treatment unit is convenient to install. The high-temperature-resistant soft adhesive in the embodiment can be used in a high-temperature environment for a long time, has a good bonding effect with various metal and non-metal materials, and particularly can be used for a long time in a temperature range of 0-2000 ℃ for vulcanized rubber.
Optionally, the shape of the sealing connection sleeve 2 includes a square ring shape adapted to the shape of the ceramic catalytic block 1, and the sealing connection includes clamping and bonding. In this embodiment, the shape of the sealing connection sleeve 2 is a square ring, the height of the inner ring of the sealing connection sleeve 2 is equal to the height of the ceramic catalytic block 1, the width of the sealing connection sleeve 2 perpendicular to the honeycomb channel 101 direction is equal to the width of the ceramic catalytic block 1, the sealing mode of the ceramic catalytic block 1 and the sealing connection sleeve 2 is adhesive bonding, and in order to ensure the sealing effect, the adhesive bonding mode is overlay bonding, and the part of the ceramic catalytic block 1 contacting the sealing connection sleeve 2 is coated with adhesive.
Optionally, the ceramic catalytic block is a precious metal ceramic catalytic block; the range of the spacing between the ceramic catalytic blocks 1 is: 1cm to 10cm, the length range of the sealing connecting sleeve 2 along the honeycomb passage 101 direction is as follows: 5cm to 20cm. In this embodiment, the interval between adjacent ceramic catalytic blocks 1 is about 3cm, and the length of the sealing connecting sleeve 2 is about 12 cm. The spacing distance between the ceramic catalysis piece 1 keeps about 3cm, can guarantee on the one hand that more ceramic catalysis pieces 1 can be placed under the same space, ensures the catalytic effect, and on the other hand can avoid the passageway overlength between adjacent ceramic catalysis pieces 1, avoids waste gas to form the backward flow in the passageway between adjacent ceramic catalysis pieces 1, reduces the catalytic rate that waste gas flow speed influences waste gas.
The second embodiment:
on the basis of the above embodiment, as shown in fig. 3 and fig. 4, another aspect of the present invention provides a waste gas treatment system for a panel purification cabin, which includes any one of the above waste gas treatment units for a panel purification cabin, and further includes a waste gas treatment cabin 3 for receiving waste gas discharged from an air outlet end of the purification cabin, wherein at least one waste gas treatment channel 31 is arranged in the waste gas treatment cabin 3; the waste gas treatment unit is arranged in the waste gas treatment channel 31, and the ceramic catalytic blocks 1 at the two ends of the waste gas treatment unit are respectively connected to the two ends of the waste gas treatment channel 31 in a sealing manner. In this embodiment, a preheater is further disposed between the exhaust gas treatment cabin 3 and the exhaust end of the purification cabin, so that the exhaust gas discharged from the purification cabin reaches the lowest reaction temperature of the catalytic reaction.
The inlet end of exhaust-gas treatment cabin 3 communicates with the end of giving vent to anger of clean room for behind the formaldehyde release of panel in the clean room, the end of giving vent to anger through the clean room discharges and carries out exhaust-gas treatment in the exhaust-gas treatment unit of exhaust-gas treatment cabin 3, avoids the waste gas in the clean room directly to discharge and cause environmental pollution in the atmosphere. Because the ceramic catalysis blocks 1 at the two ends of the waste gas treatment unit are respectively connected with the two ends of the waste gas treatment channel 31 in a sealing manner, the situation that waste gas cannot be treated by the waste gas treatment unit due to the fact that the waste gas leaks into the waste gas treatment cabin 3 when entering the waste gas treatment cabin 3 can be avoided. In this embodiment, the air outlet end of the waste gas treatment channel 31 is further communicated with an exhaust pipeline, and the exhaust pipeline is used for discharging the purified waste gas to the atmosphere.
Optionally, the exhaust gas temperature measuring device further comprises at least one first temperature measuring head 41 and at least one second temperature measuring head 42, wherein the first temperature measuring head 41 is arranged at the upstream of the second temperature measuring head 42 along the flow direction of the exhaust gas; the first temperature measuring head 41 is arranged at the air inlet end of the waste gas treatment channel 31 or/and on the sealing connecting sleeve 2; the second temperature measuring head 42 is arranged at the air outlet end of the waste gas treatment channel 31 or/and on the sealing connecting sleeve 2. When the first temperature measuring head 41 or the second temperature measuring head 42 is arranged on the sealing connecting sleeve 2, the first temperature measuring head 41 and the second temperature measuring head 42 are inserted into the sealing connecting sleeve, the first temperature measuring head 41 and the second temperature measuring head 42 are connected with the sealing connecting sleeve in a sealing manner, and temperature measuring points of the first temperature measuring head 41 and the second temperature measuring head 42 are located in the exhaust gas treatment unit.
The position conditions of the first temperature measuring head and the second temperature measuring head are at least five types:
firstly, a first temperature measuring head 41 is arranged at the air inlet end of the waste gas treatment channel 31, and a second temperature measuring head 42 is arranged at the air outlet end of the waste gas treatment channel 31;
secondly, the first temperature measuring head 41 is arranged at the air inlet end of the waste gas treatment channel 31, and the second temperature measuring head 42 is arranged on the sealing connecting sleeve 2;
thirdly, the first temperature measuring head 41 is arranged on the sealing connecting sleeve 2, and the second temperature measuring head 42 is arranged at the air outlet end of the waste gas treatment channel 31;
fourthly, the first temperature measuring head 41 and the second temperature measuring head 42 are both arranged on the sealing connecting sleeve 2;
and fifthly, one first temperature measuring head is provided, the first temperature measuring heads 41 are arranged at the air inlet end of the waste gas treatment channel 31, the number of the first temperature measuring heads is two, and the second temperature measuring heads 42 are arranged at the air outlet end of the waste gas treatment channel 31 and on the sealing connecting sleeve 2.
The temperature measured by the first temperature measuring head reaches the catalytic reaction temperature, and the temperature measured by the second temperature measuring head is higher than the temperature measured by the first temperature measuring head, so that the catalytic reaction can be shown to be in progress.
In this embodiment, as shown in fig. 3 and 4, the first temperature measuring head 41 is disposed at the inlet end of the exhaust gas treatment channel 31, and the second temperature measuring head 42 is disposed at the outlet end of the exhaust gas treatment channel 31, because heat is released during catalytic combustion reaction of exhaust gas, the temperature change before and after treatment of exhaust gas can be measured by disposing the first temperature measuring head 41 at the inlet end of the exhaust gas treatment channel 31 and disposing the second temperature measuring head 42 at the outlet end, so that the catalytic reaction condition of exhaust gas can be monitored.
Optionally, the exhaust gas treatment cabin 3 includes a cabin body 32 and a cabin cover 33, and the connection manner of the cabin body 32 and the cabin cover 33 includes detachable connection and openable and closable connection. The cabin 32 and the cover 33 are detachably or openably connected, so that the exhaust gas treatment unit can be conveniently taken out to replace or repair the exhaust gas treatment unit when the exhaust gas treatment unit needs to be maintained or fails.
Specifically, sealing rings 5 are sleeved on the ceramic catalytic blocks 1 at the two ends of the waste gas treatment unit; the bottom surface and two side surfaces of the sealing ring 5 are clamped at the end part of the cabin body 32, the top surface of the sealing ring 5 is higher than the top surface of the cabin body 32, and the cabin cover 33 can be opened and closed and is pressed on the cabin body 32. In this embodiment, the material of the sealing ring 5 is the same as that of the sealing connecting sleeve 2, and a high temperature resistant soft rubber material is adopted. The thickness of the sealing ring 5 is greater than that of the sealing connecting sleeve 2, after the sealing ring 5 is installed on the ceramic catalytic blocks 1 at two ends of the waste gas treatment unit, the top height of the sealing ring 5 is slightly higher than that of the cabin 32, after the cabin cover 33 is closed, the cabin cover 33 and the cabin 32 are fixed through bolts, in the process of rotating the bolts, as the sealing ring 5 is made of elastic material, the sealing ring 5 can be pressed downwards by the cabin cover 33, at the moment, the top surface of the sealing ring 5 is sealed, and meanwhile, the bottom surface and two side surfaces of the sealing ring 5 are clamped at the end part of the cabin 32, therefore, after the cabin cover 33 is closed, the ceramic catalytic blocks 1 at two ends of the waste gas treatment unit and two ends of the waste gas treatment channel 31 form a sealing relationship, and waste gas can only enter the waste gas treatment unit to be catalytically treated after entering the waste gas treatment channel 31.
Preferably, heat insulation interlayers 34 are arranged in both the cabin body 32 and the cabin cover 33. Cabin body 32 and cabin cover 33 all set up heat preservation intermediate layer 34, and heat is revealed to the external environment in the waste gas when can avoiding waste gas treatment, arouses operation environment temperature to rise, simultaneously, avoids causing the heat of waste gas can't retrieve in subsequent processes, leads to the problem that whole panel clean system's energy consumption increases.
Preferably, when there is more than one exhaust gas treatment channel 31, a plurality of exhaust gas treatment channels 31 are arranged side by side, and a partition 35 for separating adjacent exhaust gas treatment channels 31 is further provided in the exhaust gas treatment cabin 3. The ceiling 35 in this embodiment is flush with the ceiling of the enclosure 32. The arrangement of the exhaust gas treatment passages 31 arranged in parallel can effectively improve the efficiency of exhaust gas treatment, and in the present embodiment, as shown in fig. 3 and 4, the number of the exhaust gas treatment passages 31 is three. The three exhaust gas treatment channels 31 are arranged, the comparison can be carried out through the three exhaust gas treatment channels 31 when the catalytic reaction is detected through temperature, if the temperature rise value of one of the three exhaust gas treatment channels is too small relative to the temperature rise values of the other two exhaust gas treatment channels, the exhaust gas treatment unit in the exhaust gas treatment channel 31 is indicated to be in fault, and meanwhile, the fault tolerance of the exhaust gas treatment can be improved through the three exhaust gas treatment channels 31.
It is to be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and such changes and modifications are to be considered as within the scope of the invention.
Claims (10)
1. The waste gas treatment unit of the plate purifying cabin comprises at least two ceramic catalytic blocks (1), and is characterized in that honeycomb channels (101) of the ceramic catalytic blocks (1) are arranged along the same direction, and the ceramic catalytic blocks (1) are sequentially arranged at intervals; the ceramic catalyst support is characterized by also comprising at least one sealing connecting sleeve (2), wherein two ends of each sealing connecting sleeve (2) are respectively connected with two adjacent ceramic catalyst blocks (1) in a sealing manner.
2. The exhaust gas treatment unit of a panel purifying cabin according to claim 1, wherein the material of the sealing connection sleeve (2) comprises high temperature resistant soft glue, and the adjacent ceramic catalytic blocks (1) are in soft sealing connection through the sealing connection sleeve (2).
3. An exhaust gas treatment unit of a panel purifying cabin according to claim 2, characterized in that the shape of the sealing connection sleeve (2) comprises a square ring shape matched with the shape of the ceramic catalytic block (1), and the sealing connection comprises clamping and bonding.
4. An exhaust gas treatment unit of a panel-cleaning cabin according to claim 1, characterized in that the ceramic catalytic block (1) is a precious metal ceramic catalytic block (1);
the distance range between the ceramic catalytic blocks (1) is as follows: 1cm to 10cm, the length range of the sealing connecting sleeve (2) along the direction of the honeycomb channel (101) is as follows: 5cm to 20cm.
5. An exhaust gas treatment system of a panel purification cabin, comprising an exhaust gas treatment unit of the panel purification cabin as recited in any one of claims 1 to 4, characterized by further comprising an exhaust gas treatment cabin (3) for receiving exhaust gas discharged from the purification cabin, wherein at least one exhaust gas treatment channel (31) is arranged in the exhaust gas treatment cabin (3);
the waste gas treatment unit is arranged in the waste gas treatment channel (31), and the ceramic catalytic blocks (1) at the two ends of the waste gas treatment unit are respectively connected to the two ends of the waste gas treatment channel (31) in a sealing manner.
6. The exhaust gas treatment system of a panel purifying cabin according to claim 5, further comprising at least one first temperature measuring head (41) and at least one second temperature measuring head (42), wherein the first temperature measuring head (41) is arranged upstream of the second temperature measuring head (42) in the exhaust gas flowing direction;
the first temperature measuring head (41) is arranged at the air inlet end of the waste gas treatment channel (31) or/and on the sealing connecting sleeve (2); the second temperature measuring head (42) is arranged at the air outlet end of the waste gas treatment channel (31) or/and on the sealing connecting sleeve (2).
7. The exhaust gas treatment system of the board cleaning cabin according to claim 5, wherein the exhaust gas treatment cabin (3) comprises a cabin body (32) and a cabin cover (33), and the cabin body (32) and the cabin cover (33) are connected in a detachable or openable way.
8. The exhaust gas treatment system of the plate purification cabin according to claim 7, wherein the ceramic catalytic blocks (1) at both ends of the exhaust gas treatment unit are sleeved with sealing rings (5); the bottom surface and two side surfaces of the sealing ring (5) are clamped at the end part of the cabin body (32), the top surface of the sealing ring (5) is higher than the top surface of the cabin body (32), and the cabin cover (33) can be opened and closed and is pressed on the cabin body (32).
9. The exhaust gas treatment system of the panel purification cabin according to claim 7, wherein the cabin body (32) and the cabin cover (33) are both provided with a heat insulation interlayer (34).
10. An exhaust gas treatment system of a board purifying cabin according to claim 5, wherein when the number of the exhaust gas treatment passages (31) is larger than one, a plurality of the exhaust gas treatment passages (31) are arranged side by side, and a partition plate (35) for separating the adjacent exhaust gas treatment passages (31) is further arranged in the exhaust gas treatment cabin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221976820.0U CN218012075U (en) | 2022-07-29 | 2022-07-29 | Waste gas treatment unit and system of panel purifying cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221976820.0U CN218012075U (en) | 2022-07-29 | 2022-07-29 | Waste gas treatment unit and system of panel purifying cabin |
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| Publication Number | Publication Date |
|---|---|
| CN218012075U true CN218012075U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221976820.0U Active CN218012075U (en) | 2022-07-29 | 2022-07-29 | Waste gas treatment unit and system of panel purifying cabin |
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| Country | Link |
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| CN (1) | CN218012075U (en) |
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- 2022-07-29 CN CN202221976820.0U patent/CN218012075U/en active Active
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