CN216023249U - Exhaust gas recovery device and synthetic water treatment equipment - Google Patents
Exhaust gas recovery device and synthetic water treatment equipment Download PDFInfo
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- CN216023249U CN216023249U CN202122525042.5U CN202122525042U CN216023249U CN 216023249 U CN216023249 U CN 216023249U CN 202122525042 U CN202122525042 U CN 202122525042U CN 216023249 U CN216023249 U CN 216023249U
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Abstract
The utility model relates to the technical field of exhaust gas recovery, in particular to an exhaust gas recovery device and synthetic water treatment equipment. The inlet ends of two exhaust air cooling tube bundles of the device are respectively communicated with an exhaust gas outlet through pipelines, and the pipeline at the inlet end of each cooling tube bundle is provided with an inlet valve; the pipelines at the inlet ends of the two cooling tube bundles are communicated through two flow guide pipelines; the inlet end of each flow guide pipeline is respectively positioned between one inlet valve and the exhaust gas outlet, and the outlet end of each flow guide pipeline is respectively positioned between the other inlet valve and the inlet end of the cooling tube bundle corresponding to the inlet valve; each flow guide pipeline is provided with a flow guide valve. When one cooling tube bundle is stopped, the exhaust gas is guided to the other cooling tube bundle, so that the effective recovery amount of the exhaust gas of the equipment is unchanged; the flow of the exhaust gas can be adjusted through the diversion valve, so that the freezing and blocking of the cooling tube bundle caused by too little exhaust gas due to bias flow are prevented.
Description
Technical Field
The utility model relates to the technical field of exhaust gas recovery, in particular to an exhaust gas recovery device and synthetic water treatment equipment.
Background
The exhaust gas is steam generated in industrial equipment, and condensate contained in the steam can be recycled and utilized. The device for recovering the condensate in the exhaust gas is an exhaust gas recovery device, the exhaust gas recovery devices of some devices are air cooling devices, and the temperature of the exhaust gas is reduced after the exhaust gas passes through the air cooling devices, so that the liquid drops in the exhaust gas are condensed to form the condensate which is recovered.
However, because the self-fluidity of the exhaust gas is strong, the interference adjustment cannot be performed through operation and other modes, for example, when the external temperature is lower than 0 ℃, or the device runs at low load, the air input of the exhaust gas air cooling equipment is low, the condition that the exhaust gas refrigeration equipment is blocked by freezing is easy to occur, and the freezing crack of the equipment tube bundle is caused in serious cases.
Be equipped with steam condensate recovery system among the current synthetic water treatment facilities, when the condensate jar normally retrieves the condensate, tank deck portion can continuously have vapour-state condensate owing to the higher temperature, and these vapour-state condensate need just can get into the exhaust air cooling along with the exhaust under the ordinary pressure condition and cool down the condensation. Therefore, because the normal pressure state needs to be kept, the bias flow condition occurs when the exhaust gas enters the exhaust gas air cooler, so that the partial tube bundle in the air cooling tube bundle is in the condition of being in an empty tube or not being full of tubes, the external temperature is below 0 ℃ in winter, meanwhile, the equipment belongs to refrigeration equipment, and the freezing and blocking of the equipment are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waste gas recovery device and synthetic water treatment equipment.
The technical scheme for solving the technical problems is as follows:
the utility model provides an exhaust gas recovery device, which comprises at least one exhaust gas air-cooling pipe bundle group and an exhaust gas feeding pipeline communicated with the exhaust gas air-cooling pipe bundle group; each exhaust air-cooled cooling tube bundle group comprises two exhaust air-cooled cooling tube bundles and an exhaust feeding pipeline, and one end of each exhaust air-cooled cooling tube bundle group is provided with an exhaust discharging hole; the inlet ends of the two exhaust air-cooled cooling tube bundles are respectively communicated with the exhaust gas outlet through pipelines, and an inlet valve is arranged on the pipeline at the inlet end of each exhaust air-cooled cooling tube bundle; the pipelines at the inlet ends of the two exhaust air cooling tube bundles are communicated through two flow guide pipelines; the air inlet end of each flow guide pipeline is respectively positioned between one inlet valve and the exhaust gas outlet, and the air outlet end of each flow guide pipeline is respectively positioned between the other inlet valve and the inlet end of the exhaust gas air-cooling tube bundle corresponding to the inlet valve; and each flow guide pipeline is provided with a flow guide valve.
The technical scheme of the utility model has the beneficial effects that: through the arrangement of the diversion pipeline and the diversion valve, when one exhaust air-cooled cooling tube bundle is stopped, exhaust air which should flow into the exhaust air-cooled cooling tube bundle is diverted to the other exhaust air-cooled cooling tube bundle, so that the effective recovery amount of the exhaust air of the equipment is unchanged; simultaneously, when equipment moves, can also adjust the flow of two exhaust air cooling tube bundles through opening and shutting of blast valve, prevent that the stifled condition of freezing from appearing in the too little exhaust air cooling tube bundle of exhaust.
Further, the diversion valve is a root valve.
The beneficial effect of adopting the further technical scheme is that: the root valve is used as the diversion valve, so that the three pipelines can be communicated simultaneously, and the three-way valve has the advantages of convenience in installation and operation.
And furthermore, the outlet ends of the two exhaust air-cooling tube bundles are respectively communicated with one end of a discharging pipeline through pipelines, and each pipeline at the outlet end of the exhaust air-cooling tube bundle is respectively provided with an outlet valve.
The beneficial effect of adopting the further technical scheme is that: through the outlet valve of each exhaust air cooling tube bundle, the independent control of closing and opening of the outlet of each exhaust air cooling tube bundle can be realized.
Furthermore, each outlet valve and the pipeline communicated with the outlet end of the exhaust air cooling tube bundle corresponding to the outlet valve are respectively communicated with a spray guiding pipeline, and each spray guiding pipeline is provided with a spray guiding valve.
The beneficial effect of adopting the further technical scheme is that: when one exhaust air cooling tube bundle is stopped, residual liquid in the exhaust air cooling tube bundle can be discharged through the guide shower pipeline and the guide shower valve, so that the drying of the exhaust air cooling tube bundle is ensured, and the service life of the exhaust air cooling tube bundle is prolonged.
Further, the device also comprises a condensate recovery tank and a condensate outward-feeding pump; the condensate recovery tank is communicated with the other end of the exhaust gas feeding pipeline; the condensate recovery tank is communicated with the condensate outward-conveying pump through a condensate outward-conveying pipeline.
The beneficial effect of adopting the further technical scheme is that: exhaust gas of the condensate recovery tank can be recovered through an exhaust gas feeding pipeline, and a condensate delivery pipeline in the condensate recovery tank can lower the effect of a condensate delivery pump to deliver and recover condensate.
Furthermore, the other end of the exhaust gas feeding pipeline and the position of the condensate recovery tank are located at the top of the condensate recovery tank, and the condensate delivery pipeline and the position of the condensate recovery tank are located at the bottom of the condensate recovery tank.
The beneficial effect of adopting the further technical scheme is that: in the condensate recovery tank, the exhaust gas is positioned at the top of the condensate recovery tank, the condensate is positioned at the bottom of the condensate recovery tank, and the exhaust gas feeding pipeline is communicated with the top of the condensate recovery tank, so that the exhaust gas is discharged more favorably.
Further, the other end of the discharge pipeline is communicated with the condensate delivery pipeline.
The beneficial effect of adopting the further technical scheme is that: the condensate condensed and recovered by the exhaust air cooling tube bundle can be recovered simultaneously with the condensate in the condensate tank.
The system further comprises a rack, and at least one exhaust air-cooling tube bundle group is fixedly arranged on the rack; the frame is also fixedly provided with at least one exhaust air cooler motor fan device which is in one-to-one correspondence with the exhaust air cooling tube bundle group, and the exhaust air cooler motor fan device is positioned between two corresponding exhaust air cooling tube bundles in the exhaust air cooling tube bundle group.
The beneficial effect of adopting the further technical scheme is that: the speed of condensate condensation in the exhaust gas can be accelerated by arranging the motor fan device of the exhaust gas air cooler.
Furthermore, eight ventilation air cooling tube bundle groups are provided.
The beneficial effect of adopting the further technical scheme is that: the adoption of eight exhaust air cooling tube bundle groups can lead the synthetic water treatment equipment to have high exhaust gas recovery efficiency.
The utility model provides a synthetic water treatment device which comprises the exhaust gas recovery device.
Drawings
Fig. 1 is a schematic structural view of a waste gas recovery apparatus according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a condensate feed line; 2. a condensate recovery tank;
3. a spent gas feed line; 31. a discharge hole of exhaust gas;
4. an inlet valve; 5. the condensate is sent out of the pump; 6. an exhaust air cooling tube bundle; 7. a spray guide pipeline; 8. an air cooler motor fan assembly; 9. a pilot shower valve; 10. a diversion pipeline; 11. an outlet valve; 12. a diverter valve; 13. a discharge pipeline; 14. and (5) conveying the condensate out of a pipeline.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, the exhaust gas recovery device of the present invention comprises at least one exhaust gas air-cooling tube bundle group, wherein the exhaust gas air-cooling tube bundle group is communicated with an exhaust gas discharge port 31 of an exhaust gas feeding pipeline 3; the exhaust air-cooling tube bundle group comprises two exhaust air-cooling tube bundles 6; the inlet ends of the two exhaust air-cooling tube bundles 6 are respectively communicated with an exhaust gas outlet 31 through pipelines, and an inlet valve 4 is arranged on the pipeline at the inlet end of each exhaust air-cooling tube bundle 6; the pipelines at the inlet ends of the two exhaust air cooling tube bundles 6 are communicated through two flow guide pipelines 10; wherein, the air inlet end of each flow guide pipeline 10 is respectively positioned between one inlet valve 4 and the exhaust gas outlet 31, and the air outlet end of each flow guide pipeline 10 is respectively positioned between the other inlet valve 4 and the inlet end of one exhaust gas air-cooled cooling tube bundle 6; each diversion pipeline 10 is provided with a diversion valve 12.
An inlet valve 4 is arranged at an inlet of the exhaust air-cooled cooling tube bundle 6, and the exhaust air can be controlled to enter the exhaust air-cooled cooling tube bundle 6 by controlling the opening and closing of the inlet valve 4; meanwhile, the utility model is also provided with the diversion pipeline 10 and the diversion valve 12, so that before one exhaust air-cooled cooling tube bundle 6 is stopped, the diversion valve 12 on the corresponding diversion pipeline 10 is opened, the exhaust gas flowing from the exhaust gas feeding pipeline 3 can be effectively diverted to another exhaust air-cooled cooling tube bundle 6, the exhaust gas is ensured to flow into another air-cooled tube bundle through the diversion pipeline 10 before entering the stopped exhaust air-cooled cooling tube bundle 6, and the effective recovery amount of the exhaust gas of the equipment is ensured to be unchanged when the exhaust air-cooled cooling tube bundle 6 is stopped.
In addition, the diversion pipeline 10 and the diversion valve 12 can also divert exhaust gas through the opening and closing of the diversion valve 12 when the equipment runs, so that the exhaust gas introduced into the exhaust gas air-cooling tube bundle 6 with less exhaust gas quantity is increased, and the condition that the exhaust gas refrigeration equipment is frozen and blocked due to too little exhaust gas is prevented.
If the diversion pipeline 10 and the diversion valve 12 are not adopted, only the corresponding inlet valve 4 is closed when the exhaust air-cooled cooling tube bundle 6 is stopped, and the flow of the inlet valve 4 of the other exhaust air-cooled cooling tube bundle 6 is constant and cannot be increased at any time, so that the total inflow of exhaust gas is reduced after one inlet valve 4 is closed, and the exhaust gas recovery efficiency is reduced; after the diversion pipeline 10 and the diversion valve 12 are adopted, the position communicated with the air outlet of the diversion pipeline 10 is positioned between the other inlet valve 4 and the other exhaust air cooling tube bundle 6, so that the flow at the position is not limited by the other inlet valve 4, and the total recovery amount of exhaust air can be kept unchanged when one exhaust air cooling tube bundle 6 is stopped.
Two diversion pipelines 10 corresponding to the two exhaust air cooling tube bundles 6 are arranged in a crossed manner, but the two diversion pipelines are not communicated with each other.
Preferably, the diverter valve 12 of the present invention is a foot valve.
Preferably, the exhaust air-cooling pipe bundle group is also communicated with one end of the discharge pipeline 13; the outlet ends of the two exhaust air-cooling tube bundles 6 are respectively communicated with a discharge pipeline 13 through pipelines, and an outlet valve 11 is respectively arranged on the pipeline at the outlet end of each exhaust air-cooling tube bundle 6; the condensate in each exhaust air cooling tube bundle 6 can be returned through the communication with the discharge pipeline 13; an outlet valve 11 is arranged at the outlet end of each exhaust air-cooled cooling tube bundle 6, and the condensate recovery of each exhaust air-cooled cooling tube bundle 6 can be independently controlled.
Preferably, a spray guide pipeline 7 is respectively communicated with a pipeline of each outlet valve 11 communicated with the outlet end of the corresponding exhaust air-cooled cooling tube bundle 6, and each spray guide pipeline 7 is provided with a spray guide valve 9; the purpose of arranging the leaching guide pipeline 7 and the leaching guide valve 9 is that when one exhaust air-cooled cooling tube bundle 6 is stopped, the inlet valve 4 and the outlet valve 11 are closed, and liquid can be possibly remained in the stopped exhaust air-cooled cooling tube bundle 6; because the interior of the spent air-cooled cooling tube bundle 6 needs to be kept dry to prolong its service life, the spent air-cooled cooling tube bundle 6 that is deactivated can be drained of the remaining liquid separately through the drain line 7 and the drain valve 9.
Preferably, the exhaust gas recovery device further comprises a condensate recovery tank 2 and a condensate outward-feeding pump 5; the top of the condensate recovery tank 2 is communicated with the other end of the exhaust gas feeding pipeline 3; the bottom of the condensate recovery tank 2 is communicated with a condensate outward-conveying pump 5 through a condensate outward-conveying pipeline 14; after the condensate is collected by the condensate recovery tank 2, the doped exhaust gas can enter an exhaust gas feeding pipeline 3 from the top of the condensate recovery tank, so that the exhaust gas enters an exhaust gas air-cooling pipe bundle group to recover the exhaust gas; the bottom of the condensate recovery tank 2 is communicated with a condensate delivery pipeline 14 and a condensate delivery pump 5 to realize the recovery of condensate.
Preferably, the condensate recovery tank 2 is also communicated with the condensate feeding pipeline 1 for recovering condensate.
Preferably, the other end of the discharge pipeline 13 is communicated with a condensate delivery pipeline 14; through communicating discharge pipe 13 with condensate delivery line 14, can be with the condensate drainage of retrieving in the exhaust air cooling tube bank to condensate delivery line 14 in, make it can be retrieved with the condensate in condensate recovery tank 2 simultaneously.
Preferably, the exhaust gas recovery device also comprises a rack, and at least one exhaust gas air-cooling tube bundle group is fixedly arranged on the rack; at least one exhaust air cooler motor fan device 8 is fixedly arranged on the rack, and each exhaust air cooler motor fan device 8 is positioned between two exhaust air cooling tube bundles 6 in one exhaust air cooling tube bundle group; the exhaust air cooler motor fan device 8 can cool down each exhaust air cooling tube bundle 6, so that condensate in the exhaust air cooler motor fan device is quickly condensed, and the recovery efficiency is improved.
The synthesis water treatment device comprises the exhaust gas recovery device.
The working process of the present invention is specifically described below by way of examples.
Example 1
The exhaust gas recovery apparatus of the synthesis water treatment apparatus of the present embodiment has 8 exhaust gas air-cooled cooling tube bundle groups, that is, 16 exhaust gas air-cooled cooling tube bundles 6 in total.
The 8 exhaust air-cooled cooling tube bundle groups of the embodiment are respectively communicated with a condensate delivery pipeline 14 through respective exhaust air feeding pipelines 3 and a condensate recovery tank 2 and respective discharge pipelines 13, the condensate delivery pipeline 14 is communicated with a condensate delivery pump 5, and the condensate delivery pump 5 provides power for discharging condensate.
The synthetic water treatment device of this embodiment, the efficiency of cooling recovery exhaust gas volume is 2t/h, and when exhaust gas flowed to the exhaust gas discharge gate 31 that first parallel pipeline 5 and the exhaust gas feed pipeline 3 intercommunication of every exhaust gas air cooling tube bank was restrainted by the condensate recovery jar 2 through exhaust gas feed pipeline 3, the temperature of exhaust gas was 180 ℃.
According to actual monitoring, the deviation phenomenon that the exhaust gas of the synthetic water treatment device enters each exhaust gas air-cooling tube bundle 6 is very serious, and when the diversion pipeline 10 and the diversion valve 12 which are used for regulation are not used, the exhaust gas air-cooling tube bundle 6 is frozen and blocked frequently, so that the exhaust gas recovery efficiency is very low.
The diversion pipeline 10 and the diversion valve 12 of the utility model can solve the problems, and the specific process is as follows:
when the exhaust air-cooling tube bundles 6 are not required to be stopped, the diversion valve 12 on the diversion pipeline 10 corresponding to the exhaust air-cooling tube bundles 6 with high flow is used for diverting a part of exhaust air flowing into the diversion valve to another exhaust air-cooling tube bundle 6 according to the exhaust air flow condition of each exhaust air-cooling tube bundle 6, so that the phenomenon of bias flow is effectively inhibited, and the exhaust air-cooling tube bundles 6 with low flow are prevented from being frozen and blocked.
When one exhaust air-cooled cooling tube bundle 6 needs to be stopped, before the exhaust air-cooled cooling tube bundle 6 is stopped, a diversion valve 12 on a diversion pipeline 10 corresponding to the exhaust air-cooled cooling tube bundle 6 is opened, and exhaust air is ensured to circulate to another exhaust air-cooled cooling tube bundle 6 through the diversion pipeline 10; and closing the inlet valve 4 corresponding to the exhaust air-cooled cooling tube bundle 6 to be deactivated, closing the outlet valve 11 of the exhaust air-cooled cooling tube bundle 6, and simultaneously opening the spray guide valve 9 on the spray guide pipeline 7 to enable the liquid in the exhaust air-cooled cooling tube bundle 6 to flow out. The shutdown process can ensure that the total recovery amount of the exhaust gas is unchanged when one exhaust gas air-cooling tube bundle 6 is shut down; and the guide shower pipeline 7 and the guide shower valve 9 on the guide shower pipeline can keep the inside of the dead exhaust air cooling tube bundle 6 dry, and the service life of the dead exhaust air cooling tube bundle is prolonged.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An exhaust gas recovery device comprises at least one exhaust gas air-cooling tube bundle group; the device is characterized in that each exhaust air-cooled cooling tube bundle group comprises two exhaust air-cooled cooling tube bundles (6) and an exhaust air feeding pipeline (3), and one end of the exhaust air feeding pipeline (3) is provided with an exhaust air discharging hole (31);
the inlet ends of the two exhaust air-cooling tube bundles (6) are respectively communicated with the exhaust gas outlet (31) through pipelines, and an inlet valve (4) is arranged on the pipeline at the inlet end of each exhaust air-cooling tube bundle (6);
the pipelines at the inlet ends of the two exhaust air cooling tube bundles (6) are communicated through two flow guide pipelines (10); the air inlet end of each flow guide pipeline (10) is respectively positioned between one inlet valve (4) and the exhaust gas outlet (31), and the air outlet end of each flow guide pipeline (10) is respectively positioned between the other inlet valve (4) and the inlet end of the exhaust gas air-cooling tube bundle (6) corresponding to the inlet valve (4);
each diversion pipeline (10) is provided with a diversion valve (12).
2. The spent gas recovery apparatus of claim 1 wherein the diverter valve (12) is a root valve.
3. The exhaust gas recovery device according to claim 1, wherein the outlet ends of the two exhaust gas air-cooled cooling tube bundles (6) are respectively communicated with one end of the discharge pipeline (13) through pipelines, and the pipeline of the outlet end of each exhaust gas air-cooled cooling tube bundle (6) is respectively provided with an outlet valve (11).
4. The exhaust gas recovery device according to claim 3, wherein each outlet valve (11) is communicated with a conduit communicated with the outlet end of the corresponding exhaust gas air-cooled cooling tube bundle (6) through a drain conduit (7), and each drain conduit (7) is provided with a drain valve (9).
5. The exhaust gas recovery device according to claim 3, further comprising a condensate recovery tank (2), a condensate delivery line (14) and a condensate delivery pump (5);
the condensate recovery tank (2) is communicated with the other end of the exhaust gas feeding pipeline (3); one end of the condensate delivery pipeline (14) is communicated with the condensate recovery tank (2), and the other end of the condensate delivery pipeline is communicated with the condensate delivery pump (5).
6. The exhaust gas recovery device according to claim 5, wherein the other end of the exhaust gas feeding pipeline (3) is communicated with the condensate recovery tank (2) at the top of the condensate recovery tank (2), and the condensate delivery pipeline (14) is communicated with the condensate recovery tank (2) at the bottom of the condensate recovery tank (2).
7. The exhaust gas recovery device according to claim 5, wherein the other end of the discharge pipe (13) is in communication with the condensate outlet line (14).
8. The exhaust gas recovery device according to any one of claims 1 to 7, further comprising a frame, wherein at least one of the exhaust gas air-cooled cooling tube bundle groups is fixedly mounted on the frame;
still fixed mounting at least one in the frame with exhaust air cooler motor fan unit (8) of exhaust air cooler cooling tube bank one-to-one, exhaust air cooler motor fan unit (8) are located the correspondence between two exhaust air cooler cooling tube banks (6) in the exhaust air cooler cooling tube bank group.
9. The exhaust gas recovery device according to any one of claims 1 to 7, wherein the number of the exhaust gas air-cooling tube bundles is eight.
10. A synthesis water treatment apparatus comprising the exhaust gas recovery device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525042.5U CN216023249U (en) | 2021-10-20 | 2021-10-20 | Exhaust gas recovery device and synthetic water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525042.5U CN216023249U (en) | 2021-10-20 | 2021-10-20 | Exhaust gas recovery device and synthetic water treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN216023249U true CN216023249U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122525042.5U Active CN216023249U (en) | 2021-10-20 | 2021-10-20 | Exhaust gas recovery device and synthetic water treatment equipment |
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| CN (1) | CN216023249U (en) |
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2021
- 2021-10-20 CN CN202122525042.5U patent/CN216023249U/en active Active
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