CN208032219U - A kind of waste gas recovering device - Google Patents
A kind of waste gas recovering device Download PDFInfo
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- CN208032219U CN208032219U CN201721684251.1U CN201721684251U CN208032219U CN 208032219 U CN208032219 U CN 208032219U CN 201721684251 U CN201721684251 U CN 201721684251U CN 208032219 U CN208032219 U CN 208032219U
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0036—Multiple-effect condensation; Fractional condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of waste gas recovering device, including bellows system, adsorption tanks, first-stage condenser, secondary condenser, main steam range, gas-liquid separator, surge tank, solvent separating tank；The bellows system, adsorption tanks, first-stage condenser, gas-liquid separator, secondary condenser, surge tank and solvent separating tank are sequentially connected；The adsorption tanks are equipped with steam inlet, absorption gas outlet and purified gas escape pipe, and the steam inlet connects the main steam range, and the absorption gas outlet is connect with the first-stage condenser.
Description
Technical field
The utility model is related to VOCs treatment field, especially a kind of waste gas recovering device.
Background technology
Major part Chemical Manufacture producer can all generate tail gas in process of production at present, in order not to pollute air, be required for
The tail gas that it is produced is handled, then could be emptied, however at present in the Chemical Manufacture producer of some organics, they
The tail gas of generation is often with a large amount of low-boiling-point organic compound, however the tail gas absorbing system that they use but can not be effective
These organic matters are recycled, and have been exhausted directly in air, bring atmosphere pollution, while also resulting in the waste of material.
Carbon adsorption is most widely used recovery technology, and principle is the porous structure using adsorbent, will be discarded
In VOC captures, the organic exhaust gas containing VOC is made into VOC absorption by active-carbon bed, exhaust gas is purified and is discharged into air
In.After carbon adsorption reaches saturation, desorption and regeneration is carried out to the carbon bed of saturation；It is passed through vapor to release VOC strippings, and and water
Steam forms vapour mixture, leaves adsorbent bed together；It is liquid with condenser cooling steam mixture, is then detached again
Recycling.
Utility model content
In view of the deficiencies of the prior art, the utility model aim is to provide a kind of waste gas recovering device.
In order to solve the above technical problems, the utility model provides a kind of waste gas recovering device, including bellows system, absorption
Tank, first-stage condenser, secondary condenser, main steam range, gas-liquid separator, surge tank, solvent separating tank；The bellows system,
Adsorption tanks, first-stage condenser, gas-liquid separator, secondary condenser, surge tank and solvent separating tank are sequentially connected；The adsorption tanks
Equipped with steam inlet, absorption gas outlet and purified gas escape pipe, the steam inlet connects the main steam range, described to absorb
Gas port is connect with the first-stage condenser.
Preferably, the bellows system is equipped with entrance bellows and bellows manifold, and it is total that the entrance bellows connect the bellows
Pipe, the bellows manifold connections adsorption tanks；The entrance bellows are equipped with filter, the first cleaning case and the first air cooler,
The filter, the first cleaning case and the first air cooler are sequentially connected.
Preferably, the bellows system is additionally provided with outlet bellows, and the outlet bellows are connected to the bellows manifold and institute
Between stating entrance bellows, the outlet bellows are equipped with the second cleaning case and the second air cooler.
Preferably, the entrance bellows are equipped at least two first air coolers, are provided between adjacent two first air coolers
One the first cleaning case.
Preferably, further include that absorption outlet manifold, level-one condensate liquid outlet tube, gas-liquid separation escape pipe, gas-liquid separation go out
Liquid pipe, B-grade condensation outlet tube are gentle to go out liquid pipe；One end of the absorption outlet manifold connects absorbing for the adsorption tanks
Gas port, the other end connect the first-stage condenser；The first-stage condenser and gas-liquid separator are gone out by the level-one condensate liquid
Liquid pipe is isolated tracheae with gas-liquid and is connected；The gas-liquid separator and secondary condenser are connected by the gas-liquid separation outlet tube
It connects；The secondary condenser is connected with surge tank by the B-grade condensation outlet tube；The surge tank and solvent separating tank are logical
Cross the buffering outlet tube connection.
Preferably, the adsorption tanks are equipped with adsorption tube, multiple absorption branch pipes and multiple absorption gas outlets, each absorption branch
Pipe one end connects corresponding absorption gas outlet, and the other end connects the adsorption tube, and the adsorption tube is connect with the absorption manifold.
Preferably, the waste gas recovering device is provided with multiple adsorption tanks, and the bellows system is equipped with bellows manifold,
The multiple adsorption tanks are connected in parallel with the absorption manifold and bellows manifold.
Preferably, the switching valve being connect with the absorption gas outlet and purified gas escape pipe is provided on the adsorption tanks
Group, the switching valve group opens the purified gas escape pipe in adsorbed state and closes the absorption gas outlet, in detachment status
It closes the purified gas escape pipe and opens the absorption gas outlet.
Preferably, the adsorption tanks are additionally provided with steam pipe and adsorption layer, and the adsorption layer is set to the steam pipe and institute
It states between adsorbing gas outlet.
Preferably, further include blowdown manifold, the absorption pot bottom is additionally provided with sewage draining exit, and the blowdown manifold is set to suction
Below attached tank and connect sewage draining exit.
Waste gas recovering device provided by the utility model, can be more efficient, preferably realizes the recycling to organic exhaust gas.
Description of the drawings
Fig. 1 provides the positive structure schematic of waste gas recovering device for the utility model.
Fig. 2 provides the overlooking structure diagram of waste gas recovering device for the utility model.
Fig. 3 provides the side structure schematic diagram of waste gas recovering device for the utility model.
Fig. 4 provides the adsorption tanks structural schematic diagram of waste gas recovering device for the utility model.
Specific implementation mode
Reference chart is in the following with reference to the drawings and specific embodiments described in further detail technical solutions of the utility model,
So that those skilled in the art can be better understood from the utility model and can be practiced, but illustrated embodiment is not as right
The restriction of the utility model.
It please refers to Fig.1 to Fig. 4, the present embodiment provides a kind of waste gas recovering devices, including bellows system 1, adsorption tanks 2, one
Grade condenser 3, secondary condenser 4, main steam range 5, gas-liquid separator 6, surge tank 7, solvent separating tank 8.It is used in adsorption tanks 2
Activated carbon is placed, to adsorb the organic principle in exhaust gas.Bellows system 1, adsorption tanks 2, first-stage condenser 3, gas-liquid separator 6,
Secondary condenser 4, surge tank and solvent separating tank are sequentially connected.Adsorption tanks 2 are equipped with steam inlet 21, absorption gas outlet 22 and net
Change gas escape pipe 23, steam inlet 21 connects main steam range 5, absorption gas outlet 22 and 3 direct or indirect connection of first-stage condenser.
The exhaust gas recycled is needed to be blasted in adsorption tanks 2 by bellows system 1, the activated carbon placed in adsorption tanks 2 can adsorb
Organic gas in exhaust gas, the remaining purified gas escape pipe 23 of purification gas discharge.When the activated carbon adsorption in adsorption tanks 2 is full
With it is rear, the steam of main steam range 5 enters through steam inlet 21 in adsorption tanks 2, is carried out to the organic matter adsorbed in adsorption tanks 2
Steam is desorbed, and the gas after desorption, which enters through absorption gas outlet 22 in first-stage condenser 3, to be condensed, condensed gas-liquid mixed
Body enters gas-liquid separator 6 and carries out gas-liquid separation, enters back into secondary condenser 4 and further condenses, condensed liquid enters slow
It rushes after tank 7 buffers and enters the separation water phase of solvent separating tank 8 and organic phase, and recycle organic phase.
It please refers to Fig.1 and Fig. 2, in a preferred embodiment, bellows system 1 is equipped with entrance bellows 11 and bellows manifold 13, enters
One's intention as revealed in what one says case 11 connects bellows manifold 13, can be that be indirectly connected with can also be directly to connect between entrance bellows 11 and bellows manifold 13
It connects.The connection adsorption tanks 2 of bellows manifold 13 need the exhaust gas recycled to enter in adsorption tanks 2 by bellows manifold 13.Entrance bellows 11
Equipped with filter 113, the first cleaning case 111 and the first air cooler 112, filter 113, the first cleaning case 111 and first are air-cooled
Device 112 is sequentially connected.The solid first passed through after needing the exhaust gas recycled to enter entrance bellows 11 in 113 exhaust gas of filter carries out slightly
Filter, is dusted exhaust gas subsequently into the first cleaning case 111, is then passed through the first air cooler 112 and cools down to exhaust gas.
It please refers to Fig.1 and Fig. 2, in a preferred embodiment, entrance bellows 11 are equipped at least two first air coolers 112, phase
There are one the first cleaning cases 111 for setting between adjacent two first air coolers 112.Make entrance bellows 11 that there is better dedusting cooling effect
Fruit.
It please refers to Fig.1 and Fig. 2, in a preferred embodiment, bellows system 1 is additionally provided with outlet bellows 12, and outlet bellows 12 connect
It is connected between bellows manifold 13 and entrance bellows 11, outlet bellows 12 are equipped with the second cleaning case 121 and the second air cooler 122.It needs
After the exhaust gas to be recycled enters entrance bellows 11, enter back into outlet bellows 12, the second cleaning case 121 and the second air cooler 122 into
One step is dusted cooling to exhaust gas.In further preferred embodiments, the second air cooler 122 is at least arranged 2, every 2
1 the second cleaning case 121 is set between two air coolers 122.
It please refers to Fig.2 and Fig. 3 further includes in a preferred embodiment absorption outlet manifold 28, level-one condensate liquid outlet tube
31, gas-liquid separation escape pipe 61, gas-liquid separation outlet tube 62, B-grade condensation outlet tube 41 are gentle goes out liquid pipe 71；Adsorb outlet
The absorption gas outlet 22 of one end connection adsorption tanks 2 of manifold 28, the other end connect first-stage condenser 3, absorption outlet manifold 28 with
Absorption can be directly connected to can also be to be indirectly connected between gas outlet 22.Gas after being desorbed in adsorption tanks 2 is through absorbing
Gas port 22 flow to absorption outlet manifold 28, subsequently into first-stage condenser 3.First-stage condenser 3 and gas-liquid separator 6 pass through one
Grade condensate liquid outlet tube 31 and gas-liquid isolate the connection of tracheae 61, and gas-liquid separator 6 and secondary condenser 4 are gone out by gas-liquid separation
Liquid pipe 62 connects.The also gas liquid mixture comprising a small amount of gas is flowed through level-one condensate liquid outlet tube 31 after first-stage condenser 3 condenses
Enter gas-liquid separator 6 and carry out gas-liquid separation, the liquid after separation enters secondary condenser 4 again into one through gas-liquid separation outlet tube 62
Step condensation, it is ensured that condensation function is complete, and the gas after separation is further returning to level-one condensate liquid through gas-liquid separation escape pipe 61
Outlet tube 31 carries out condensation cycle.Secondary condenser 4 and surge tank 7 are connected by B-grade condensation outlet tube 41；Surge tank 7 and molten
Agent separating tank 8 is connected by buffering outlet tube 71, and 4 condensed liquid of secondary condenser enters slow through B-grade condensation outlet tube 41
The buffering of tank 7 is rushed, the buffered outlet tube of the liquid after buffering 71 slowly flows into point that water phase and organic phase are carried out in solvent separating tank 8
From, and recycle organic phase.
Please refer to Fig.1 with Fig. 2 and Fig. 4, in a preferred embodiment, adsorption tanks 2 be equipped with adsorption tube 24, multiple absorption branch pipes
241 and multiple absorption gas outlets 22, each 241 one end of branch pipe of adsorbing connects corresponding absorption gas outlet 22, other end connection suction
Attached pipe 24, adsorption tube 24 are connect with absorption manifold 28.Multiple absorption branch pipes 241 and multiple absorption gas outlets 22 are distributed in adsorption tanks
On 2, the gas being desorbed in adsorption tanks 2 can be preferably collected.
It please refers to Fig.1 and Fig. 2, in a preferred embodiment, waste gas recovering device is provided with multiple adsorption tanks 2, bellows system 1
Equipped with bellows manifold 13, multiple adsorption tanks 2 are connected in parallel with absorption manifold 28 and bellows manifold 13.Multiple adsorption tanks 2 alternately into
Row adsorption and desorption will not be desorbed to allow waste gas recovering device to be constantly in working condition because of adsorption tanks 2,
And so that remaining device such as bellows system 1 is in halted state, it is ensured that energy-efficient recycling.
It please refers to Fig.1 to Fig. 3, in a preferred embodiment, is provided on adsorption tanks 2 and goes out with absorption gas outlet 22 and purified gas
The switching valve group that tracheae 23 connects.Switching valve group opens purified gas escape pipe 23 in adsorbed state and closes absorption gas outlet 22,
When needing the exhaust gas recycled to enter in adsorption tanks 2 to be adsorbed, the remaining purified gas escape pipe of purification gas after absorption
23 discharges are adsorbed gas outlet 22 and are closed, avoid purification gas from entering subsequent processing, cause the organic gas rate of recovery not high at this time.
Purified gas escape pipe 23 is closed in detachment status and opens absorption gas outlet 22.Organic gas after desorption is through adsorbing gas outlet 22
Into next step recovery process.
It please refers to Fig.1 and Fig. 4, in a preferred embodiment, adsorption tanks 2 are additionally provided with steam pipe 25 and adsorption layer 26, adsorption layer
26 are set between steam pipe 25 and absorption gas outlet 22.Steam pipe 25 is connect by steam inlet 21 with main steam range 5.Steam
Steam in manifold 5 enters from steam inlet 21 in steam pipe 25, persistently distributes heat in steam pipe 25, makes to be set to steam pipe
The adsorption layer 26 of 25 tops is desorbed, and the organic gas after desorption flows to subsequent processing through adsorbing gas outlet 22.
Fig. 3 and Fig. 4 are please referred to Fig.1, further includes blowdown manifold 9 in a preferred embodiment, 2 bottom of adsorption tanks is additionally provided with row
Dirty mouth 27, blowdown manifold 9 are set to the lower section of adsorption tanks 2 and connect sewage draining exit 27, when generating waste water, Huo Zheqing in adsorption tanks 2
When washing adsorption tanks 2, the waste water in adsorption tanks 2 can be discharged for sewage draining exit 27.
Waste gas recovering device provided in this embodiment, by bellows system coarse filtration early period dedusting, the adsorption/desorption of adsorption tanks,
And the overall co-ordination of condenser pipe, vapour liquid separator, surge tank and solvent separating tank, realize organic gas in high efficiente callback exhaust gas
Body.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of waste gas recovering device, which is characterized in that including bellows system, adsorption tanks, first-stage condenser, secondary condenser,
Main steam range, gas-liquid separator, surge tank, solvent separating tank；The bellows system, adsorption tanks, first-stage condenser, gas-liquid separation
Device, secondary condenser, surge tank and solvent separating tank are sequentially connected；The adsorption tanks be equipped with steam inlet, absorption gas outlet and
Purified gas escape pipe, the steam inlet connect the main steam range, and the absorption gas outlet is connect with the first-stage condenser.
2. waste gas recovering device as described in claim 1, which is characterized in that the bellows system is equipped with entrance bellows and bellows
Manifold, the entrance bellows connect the bellows manifold, the bellows manifold connections adsorption tanks；The entrance bellows are equipped with
Filter, the first cleaning case and the first air cooler, the filter, the first cleaning case and the first air cooler are sequentially connected.
3. waste gas recovering device as claimed in claim 2, which is characterized in that the bellows system is additionally provided with outlet bellows, institute
It states outlet bellows to be connected between the bellows manifold and the entrance bellows, the outlet bellows are equipped with the second cleaning case and the
Two air coolers.
4. waste gas recovering device as claimed in claim 2, which is characterized in that it is empty that the entrance bellows are equipped at least two first
Cooler, there are one the first cleaning cases for setting between adjacent two first air coolers.
5. waste gas recovering device as described in claim 1, which is characterized in that further include absorption manifold, absorption outlet manifold, one
Grade condensate liquid outlet tube, gas-liquid separation escape pipe, gas-liquid separation outlet tube, B-grade condensation outlet tube are gentle to go out liquid pipe；It is described
One end of absorption outlet manifold connects the absorption gas outlet of the adsorption tanks, and the other end connects the first-stage condenser；Described one
Grade condenser is isolated tracheae with gas-liquid by the level-one condensate liquid outlet tube with gas-liquid separator and is connected；The gas-liquid separation
Device is connected with secondary condenser by the gas-liquid separation outlet tube；The secondary condenser and surge tank are cold by the two level
Solidifying outlet tube connection；The surge tank is connected with solvent separating tank by the buffering outlet tube.
6. waste gas recovering device as claimed in claim 5, which is characterized in that the adsorption tanks are equipped with adsorption tube, multiple suctions
Attached branch pipe and multiple absorption gas outlets, each branch pipe one end of adsorbing connect corresponding absorption gas outlet, and the other end connects the suction
Attached pipe, the adsorption tube are connect with the absorption manifold.
7. waste gas recovering device as claimed in claim 5, which is characterized in that the waste gas recovering device is provided with multiple described
Adsorption tanks, the bellows system are equipped with bellows manifold, and the multiple adsorption tanks are in parallel with the absorption manifold and bellows manifold to be connected
It connects.
8. waste gas recovering device as claimed in claim 7, which is characterized in that be provided on the adsorption tanks and absorbed with described
The switching valve group that gas port is connected with purified gas escape pipe, the switching valve group open the purified gas escape pipe simultaneously in adsorbed state
The absorption gas outlet is closed, the purified gas escape pipe is closed in detachment status and opens the absorption gas outlet.
9. waste gas recovering device as described in claim 1, which is characterized in that the adsorption tanks are additionally provided with steam pipe and absorption
Layer, the adsorption layer are set between the steam pipe and the absorption gas outlet.
10. waste gas recovering device as described in claim 1, which is characterized in that further include blowdown manifold, the absorption pot bottom
It is additionally provided with sewage draining exit, the blowdown manifold is set to below adsorption tanks and connects sewage draining exit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232092 | 2017-09-22 | ||
| CN2017212320921 | 2017-09-22 |
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| Publication Number | Publication Date |
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| CN208032219U true CN208032219U (en) | 2018-11-02 |
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| CN201721684251.1U Active CN208032219U (en) | 2017-09-22 | 2017-12-06 | A kind of waste gas recovering device |
| CN201711274657.7A Pending CN107899361A (en) | 2017-09-22 | 2017-12-06 | A kind of waste gas recovering device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711274657.7A Pending CN107899361A (en) | 2017-09-22 | 2017-12-06 | A kind of waste gas recovering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899361A (en) * | 2017-09-22 | 2018-04-13 | 广东林顿重工股份有限公司 | A kind of waste gas recovering device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772709A (en) * | 1996-04-18 | 1998-06-30 | Graham Corporatiom | Apparatus for removing ammonia and carbon dioxide gases from a steam |
| CN102614738A (en) * | 2012-04-01 | 2012-08-01 | 河北天龙彩印有限公司 | Organic waste gas desorption process |
| CN202844825U (en) * | 2012-10-22 | 2013-04-03 | 泉州市天龙环境工程有限公司 | Device for recycling organic solvent waste gas by active carbon series adsorption and vacuum desorption |
| CN103566619A (en) * | 2013-10-29 | 2014-02-12 | 中国石油化工股份有限公司 | Method for recovering multi-component organic gas mixture |
| CN205084577U (en) * | 2015-10-10 | 2016-03-16 | 江苏智道工程技术有限公司 | Retrieve device that multicomponent high concentration low discharge is interrupted organic waste gas active ingredient |
| CN205517197U (en) * | 2016-02-03 | 2016-08-31 | 浙江湘牛环保科技发展有限公司 | Organic gas recovery system |
| CN208032219U (en) * | 2017-09-22 | 2018-11-02 | 广东林顿重工股份有限公司 | A kind of waste gas recovering device |
-
2017
- 2017-12-06 CN CN201721684251.1U patent/CN208032219U/en active Active
- 2017-12-06 CN CN201711274657.7A patent/CN107899361A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899361A (en) * | 2017-09-22 | 2018-04-13 | 广东林顿重工股份有限公司 | A kind of waste gas recovering device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 510000 No. 2, floor 2, type C 1 plant, No. 179, tulaowan village, Nansha street, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangdong Linton Heavy Industry Co.,Ltd. Address before: 511458 No. 10, Huanshi Avenue North, Nansha District, Guangzhou, Guangdong Patentee before: GUANGDONG LINTON HEAVY INDUSTRY CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A waste gas recovery device Effective date of registration: 20230511 Granted publication date: 20181102 Pledgee: Zhaoqing Rural Commercial Bank Co.,Ltd. Pledgor: Guangdong Linton Heavy Industry Co.,Ltd. Registration number: Y2023980040288 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230921 Granted publication date: 20181102 Pledgee: Zhaoqing Rural Commercial Bank Co.,Ltd. Pledgor: Guangdong Linton Heavy Industry Co.,Ltd. Registration number: Y2023980040288 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |