CN212974676U - Low-concentration large-air-volume VOCs treatment device - Google Patents
Low-concentration large-air-volume VOCs treatment device Download PDFInfo
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- CN212974676U CN212974676U CN202021439580.1U CN202021439580U CN212974676U CN 212974676 U CN212974676 U CN 212974676U CN 202021439580 U CN202021439580 U CN 202021439580U CN 212974676 U CN212974676 U CN 212974676U
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- box
- shower
- apparatus further
- vocs
- air outlet
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 230000004069 differentiation Effects 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 24
- 239000012670 alkaline solution Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 methylthio hydrogen Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a waste gas treatment technical field specifically discloses a big amount of wind VOCs processing apparatus of low concentration, the power distribution box comprises a box body, the top of box is equipped with and is conical roof body, roof body and box intercommunication and common formation gas treatment room, the side end face of box is opened there is the air intake, the top surface of roof body is opened there is the air outlet, the inner wall coating of air outlet has the adsorbing material that is used for adsorbing remaining VOCs, be provided with a plurality of UV light oxygen fluorescent tubes that prolong the horizontal direction of box and arrange side by side in the gas treatment room, the inner chamber top of box is provided with the shower, be provided with a plurality of shower heads on the shower, be equipped with between shower head and the UV light oxygen fluorescent tube and be used for spraying the liquid differentiation water conservancy diversion that the shower head sprayed on gaseous and form the whirl. Shine VOCs through setting up UV light oxygen fluorescent tube, decompose the pollutant in the waste gas and get rid of to through the secondary purification adsorption of adsorbing material, reach purification treatment's purpose.
Description
Technical Field
The utility model relates to a waste gas treatment technical field especially relates to a big amount of wind VOCs processing apparatus of low concentration.
Background
VOCs are acronyms for volatile organic compounds (volatile organic compounds) and are defined in an environmental sense as the class of volatile organic compounds that are active, i.e., the class of volatile organic compounds that are hazardous. With the stricter pollution control of the country, the emission regulation of VOCs is also regulated more and more. And the VOCs with low concentration and large air volume are listed in the scope of supervision and treatment.
Among the prior art, often use tower-type spray column to handle waste gas, but when having the VOCs of big amount of wind low concentration in the waste gas, the spray column leads to the VOCs not yet to handle yet and just be discharged to the air easily because the space restriction in the tower body of itself, causes the pollution, has not realized the effective improvement to the VOCs pollution.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a provide sufficient space and utilize the photocatalytic oxidation technique to carry out purification treatment's processing apparatus to VOCs to existing technical current situation.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a big amount of wind VOCs processing apparatus of low concentration, includes the box, its characterized in that: the box body is a cuboid, a conical top body is arranged above the box body, the top body is communicated with the box body and forms a gas treatment chamber together, the side end face of the box body is provided with an air inlet, the top surface of the top body is provided with an air outlet, the inner wall of the air outlet is coated with an adsorbing material for adsorbing residual VOCs, the air inlet and the air outlet are arranged in a mutually vertical way, waste gas entering from the air inlet is purified by the gas treatment chamber and then discharged from the air outlet, a plurality of UV light-oxygen lamp tubes arranged in parallel along the transverse direction of the box body are arranged in the gas treatment chamber, the top of the inner cavity of the box body is provided with a spray pipe, a plurality of spray headers are arranged on the spray pipe, a rotational flow plate for differentiating, guiding and spraying the liquid sprayed by the spray headers on the gas and forming liquid drops is arranged between the spray headers and the UV light oxygen lamp tube, and a demister is arranged above the spray pipe and is positioned at the joint of the top body and the box body.
Preferably, a support frame is installed in the gas treatment chamber, the outer contour of the support frame is circular, a plurality of connecting rods are uniformly distributed on the outward contour of the center of the support frame, and the UV light-oxygen lamp tube is arranged on each connecting rod through a mounting frame.
Preferably, the rotational flow plates are provided with a plurality of rotational flow plates which are arranged in parallel along the transverse direction of the box body, and the rotational flow plates are arranged in parallel with the supporting frame.
Preferably, UV light oxygen lamp tubes are arranged below the space between the adjacent rotational flow plates.
Preferably, a water tank is arranged on the outer side of the box body, a water pump is mounted above the water tank, and the water pump is connected with the spray pipe through a pipeline.
Preferably, the water tank injects water or alkaline solution into the water tank through the water inlet pipe, the water or alkaline solution is pumped into the spray pipe through the water pump, and the water or alkaline solution is uniformly sprayed through the spray head.
Preferably, the demister is matched with the bottom end of the top body, and the demister is fixedly mounted on the inner wall of the bottom end of the top body in an attaching mode.
Preferably, the adsorption material is activated carbon, silica gel, alumina, molecular sieve or natural clay.
Preferably, the inner walls of the box body and the top body are coated with anti-sticking coatings, and the anti-sticking coatings are used for preventing particles and grease from being adhered to the inner walls.
Preferably, the box body is provided with a plurality of observation windows.
The beneficial effects of the utility model reside in that: shine VOCs through setting up UV light oxygen fluorescent tube, decompose the pollutant in the waste gas and get rid of to through the secondary purification adsorption of adsorbing material, reach purification treatment's purpose.
Drawings
Fig. 1 is a front view of a processing apparatus.
Fig. 2 is a side view of the processing apparatus.
Fig. 3 is a top view of the processing apparatus.
Fig. 4 is a perspective view of the processing device.
FIG. 5 is a perspective view of the support frame, the mounting bracket and the UV light oxygen lamp tube.
In the figure: 10-box body, 11-top body, 12-gas treatment chamber, 13-air inlet, 14-air outlet, 15-UV light oxygen lamp tube, 16-spray pipe, 17-spray head, 18-cyclone plate, 19-demister, 20-support frame, 21-connecting rod, 22-mounting frame, 23-water tank, 24-water pump, 25-pipeline and 26-observation window.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments:
please refer to fig. 1-5, the utility model discloses a low concentration large air volume VOCs processing apparatus, including box 10, box 10 is the cuboid, box 10's top is equipped with and is conical roof 11, roof 11 communicates with box 10 and forms gaseous treatment chamber 12 jointly, box 10's side end face opens there is air intake 13, roof 11's top surface opens there is air outlet 14, the inner wall coating of air outlet 14 has the adsorption material that is used for adsorbing remaining VOCs, air intake 13 sets up with air outlet 14 mutually perpendicular, the waste gas that gets into from air intake 13 is discharged from air outlet 14 after gaseous treatment chamber 12 purifies, be provided with a plurality of UV light oxygen fluorescent tubes 15 that arrange side by side along box 10 horizontal direction in the gaseous treatment chamber 12, box 10's inner chamber top is provided with shower 16, be provided with a plurality of shower heads 17 on the shower tube 16, be equipped with between shower head 17 and the UV light oxygen fluorescent tube 15 and be used for spraying the differentiation liquid that shower head 17 sprayed water conservancy diversion sprays on gas and form the liquid drop A demister 19 is arranged above the spray pipe 16, and the demister 19 is positioned at the connecting part of the top body 11 and the box body 10.
In order to facilitate the installation of the UV light oxygen lamp tube 15, a support frame 20 is installed in the gas treatment chamber 12, the outer contour of the support frame 20 is circular, a plurality of connecting rods 21 are uniformly distributed on the outward contour of the center of the support frame 20, and the UV light oxygen lamp tube 15 is arranged on the connecting rods 21 through a mounting frame 22.
The UV light oxygen lamp 15 irradiates the exhaust gas with 185nm of irradiation light emitted from an ultraviolet lamp to crack the exhaust gas such as: ammonia, trimethylamine, hydrogen sulfide, methylthio hydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, styrene and VOCs, so that organic or inorganic high molecular pollutant molecular chains are cracked under the irradiation of ultraviolet light beams and are oxidized into small molecular compounds. Free oxygen generated by decomposing oxygen molecules in the air by using UV light beams needs to be combined with oxygen molecules because the positive and negative electrons carried by the free oxygen are unbalanced, and then ozone is generated. The malodorous gas is subjected to a synergistic decomposition oxidation reaction by using UV light beams and ozone, so that malodorous gas substances are degraded and converted into low molecular compounds, water and carbon dioxide, and then discharged through the air outlet 14.
When waste gas lets in gas treatment room 12, at first flow in the lower part cavity of gas treatment room 12, the cuboid box 10 that this application set up is used for storing up waste gas as far as possible, just discharges after guaranteeing that waste gas fully purifies. Evenly spray spun liquid through whirl board 18 through shower head 17, the UV light oxygen fluorescent tube 15 that simultaneously sets up through gaseous disposal chamber 12 shines VOCs, decompose the pollutant in the waste gas and get rid of, the gaseous liquid drop that gas carried secretly among the defroster 19 carries out the separator through defroster 19 again of getting into the roof body 11 from box 10 inner chamber top, gas through defroster 19, the adsorption material through the 14 coatings of air outlet carries out the secondary purification absorption to remaining VOCs at last, reach purification treatment's purpose, just finally discharge in the air.
For the simple structure setting of the internal structure of processing apparatus and the characteristic that combines waste gas upflow, whirl board 18 is equipped with a plurality of and arranges side by side along the horizontal direction of box 10, and whirl board 18 and support frame 20 parallel arrangement.
In order to make the liquid shunted by the swirl plates 18 merge with the gas as much as possible into liquid drops and decompose the liquid drops by the UV light oxygen lamps 15, the UV light oxygen lamps 15 are arranged below the space between the adjacent swirl plates 18.
In order to supply liquid to the spray pipes 16, a water tank 23 is arranged outside the box body 10, a water pump 24 is arranged above the water tank 23, and the water pump 24 is connected with the spray pipes 16 through a pipeline 25. The water tank 23 injects water or alkaline solution into the water tank 23 through a water inlet pipe, the water or alkaline solution is pumped into the spray pipe 16 through a water pump 24, and the water or alkaline solution is uniformly sprayed through the spray head 17.
For the liquid drop of gas entrainment among the separator, set up defroster 19, defroster 19 in this embodiment and the bottom looks adaptation of the top body 11, defroster 19 laminating fixed mounting is on the inner wall of top body 11 bottom. The demister 19 used in this embodiment is a circular flat demister 19 produced by a Shijizhen environmental protection plant in Yixing city.
An adsorbent material, also known as an adsorbent, is a solid substance that is effective in adsorbing certain components from a gas or liquid. The adsorbing material has a large specific surface, a proper pore structure and a surface structure, has strong adsorption capacity on the adsorbate VOCs, and does not react with the adsorbate VOCs. The adsorbing material is active carbon, silica gel, alumina, molecular sieve or natural clay.
In order to prevent particles and grease from adhering to the inner wall of the gas processing chamber 12, the inner walls of the box body 10 and the top body 11 are coated with anti-sticking coating, and the anti-sticking coating adopted in the embodiment is a public-duty product on the market.
In order to facilitate observation of the exhaust gas treatment conditions within the apparatus, the housing 10 is provided with a plurality of observation windows 26.
Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a big amount of wind VOCs processing apparatus of low concentration, includes box (10), its characterized in that: the box (10) is the cuboid, and the top of box (10) is equipped with and is conical roof body (11), roof body (11) and box (10) intercommunication and form gaseous treatment chamber (12) jointly, and open the side end face of box (10) has air intake (13), and open the top surface of roof body (11) has air outlet (14), the inner wall coating of air outlet (14) has the adsorbing material that is used for adsorbing remaining VOCs, and air intake (13) and air outlet (14) mutually perpendicular set up, and the waste gas that gets into from air intake (13) is discharged from air outlet (14) after gaseous treatment chamber (12) purifies, is provided with a plurality of UV light oxygen fluorescent tubes (15) that arrange side by side along box (10) horizontal direction in gaseous treatment chamber (12), and the inner chamber top of box (10) is provided with shower (16), be provided with a plurality of shower heads (17) on shower pipe (16), be equipped with between shower head (17) and UV light oxygen fluorescent tube (15) and be used for the liquid that shower head (17) sprayed The device comprises a cyclone plate (18) which is used for spraying gas in a differentiation and diversion manner and forming liquid drops, wherein a demister (19) is arranged above a spray pipe (16), and the demister (19) is positioned at the joint of a top body (11) and a box body (10).
2. The apparatus according to claim 1, wherein the apparatus further comprises: the gas treatment device is characterized in that a support frame (20) is installed in the gas treatment chamber (12), the outer contour of the support frame (20) is circular, a plurality of connecting rods (21) are uniformly distributed on the outward contour of the center of the support frame (20), and the UV light-oxygen lamp tubes (15) are arranged on the connecting rods (21) through mounting frames (22).
3. The apparatus according to claim 2, wherein the apparatus further comprises: the cyclone plates (18) are provided with a plurality of cyclone plates and arranged in parallel along the transverse direction of the box body (10), and the cyclone plates (18) and the support frame (20) are arranged in parallel.
4. The apparatus according to claim 3, wherein the apparatus further comprises: UV light oxygen lamp tubes (15) are arranged below the space between the adjacent rotational flow plates (18).
5. The apparatus according to claim 1, wherein the apparatus further comprises: a water tank (23) is arranged on the outer side of the box body (10), a water pump (24) is installed above the water tank (23), and the water pump (24) is connected with the spray pipe (16) through a pipeline (25).
6. The apparatus according to claim 5, wherein the apparatus further comprises: the water tank (23) injects water or alkaline solution into the water tank (23) through a water inlet pipe, the water or alkaline solution is pumped into the spray pipe (16) through a water pump (24), and then the water or alkaline solution is uniformly sprayed through the spray head (17).
7. The apparatus according to claim 1, wherein the apparatus further comprises: the bottom looks adaptation of defroster (19) and top body (11), defroster (19) laminating fixed mounting are on the inner wall of top body (11) bottom.
8. The apparatus according to claim 1, wherein the apparatus further comprises: the adsorbing material is activated carbon, silica gel, alumina, molecular sieve or natural clay.
9. The apparatus according to claim 1, wherein the apparatus further comprises: the inner walls of the box body (10) and the top body (11) are coated with anti-sticking coatings, and the anti-sticking coatings are used for preventing particles and grease from being adhered to the inner walls.
10. The apparatus according to claim 1, wherein the apparatus further comprises: the box body (10) is provided with a plurality of observation windows (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439580.1U CN212974676U (en) | 2020-07-18 | 2020-07-18 | Low-concentration large-air-volume VOCs treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439580.1U CN212974676U (en) | 2020-07-18 | 2020-07-18 | Low-concentration large-air-volume VOCs treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212974676U true CN212974676U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439580.1U Active CN212974676U (en) | 2020-07-18 | 2020-07-18 | Low-concentration large-air-volume VOCs treatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212974676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011239A (en) * | 2021-11-29 | 2022-02-08 | 邓权塑业科技（湖南）有限公司 | Low-concentration VOCs waste gas treatment system and process |
-
2020
- 2020-07-18 CN CN202021439580.1U patent/CN212974676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011239A (en) * | 2021-11-29 | 2022-02-08 | 邓权塑业科技（湖南）有限公司 | Low-concentration VOCs waste gas treatment system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.13, hengjiao Industrial Zone, Dazhen village, Dali Town, Nanhai District, Foshan City, Guangdong Province, 528231 Patentee after: Guangdong Zhengzhou Environmental Protection Technology Co.,Ltd. Address before: No.13, hengjiao Industrial Zone, Dazhen village, Dali Town, Nanhai District, Foshan City, Guangdong Province, 528231 Patentee before: FOSHAN ZHENGZHOU ENVIRONMENTAL PROTECTION VENTILATION EQUIPMENT Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 528000 No. 6, Yihe Road, Nanhai national eco industrial demonstration park, Danzao Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Zhengzhou Environmental Protection Technology Co.,Ltd. Address before: No.13, hengjiao Industrial Zone, Dazhen village, Dali Town, Nanhai District, Foshan City, Guangdong Province, 528231 Patentee before: Guangdong Zhengzhou Environmental Protection Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low-concentration and high-volume VOCs treatment device Effective date of registration: 20220909 Granted publication date: 20210416 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: Guangdong Zhengzhou Environmental Protection Technology Co.,Ltd. Registration number: Y2022980014844 |