CN108079743B - Dry-type active carbon adsorption box for laboratory - Google Patents
Dry-type active carbon adsorption box for laboratory Download PDFInfo
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- CN108079743B CN108079743B CN201810099407.2A CN201810099407A CN108079743B CN 108079743 B CN108079743 B CN 108079743B CN 201810099407 A CN201810099407 A CN 201810099407A CN 108079743 B CN108079743 B CN 108079743B
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- rotary
- carbon adsorption
- activated carbon
- adsorption
- box body
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 104
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 abstract description 31
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 239000010815 organic waste Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/103—Curved filtering elements
-
- 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
- B01D53/04—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 with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- 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
- B01D53/04—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 with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- 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
- B01D53/06—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 with moving adsorbents, e.g. rotating beds
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Abstract
The invention discloses a dry-type activated carbon adsorption box for a laboratory, which comprises a cylindrical box body, a detachable top cover, an air inlet pipe arranged at the bottom of the box body and an air outlet pipe close to the top of the box body, wherein the cylindrical box body is sequentially provided with a filter layer, a detachable activated carbon adsorption layer and a rotary adsorption device from bottom to top, wherein the filter layer, the detachable activated carbon adsorption layer and the rotary adsorption device are arranged on the cylindrical box body: the rotary adsorption device comprises a rotary activated carbon adsorption layer which is fixed on a detachable top cover through a rotating shaft and a rotating motor; the rotary activated carbon adsorption layer comprises an inverted cone-shaped hollow adsorption section, a cylindrical rotary section and a cone-shaped hollow adsorption section which are arranged from bottom to top. The dry-type active carbon adsorption box further comprises a PLC controller, and the PLC controller is connected with the rotating motor through a timer. The position of the cylindrical box body close to the air outlet pipe is also provided with a harmful gas detector. The dry active carbon adsorption box for the laboratory is convenient to assemble and disassemble, has a short maintenance period, and can rapidly adsorb harmful gases in the laboratory.
Description
Technical Field
The invention relates to the technical field of laboratory activated carbon adsorption equipment, in particular to a dry activated carbon adsorption box for a laboratory.
Background
The activated carbon adsorption box is the purifying equipment with the best effect of treating organic waste gas and odor. Activated carbon adsorption is a measure for effectively removing odor, natural and synthetic dissolved organic matters, micro-pollutants and the like of water. The activated carbon adsorption is used as a deep purification process, is often used for final treatment of waste water, can also be used for purification treatment of long-term water and domestic water, and the activated carbon adsorption box mainly comprises an activated carbon layer and a bearing layer, wherein the activated carbon has developed gaps, large surface area and high adsorption capacity, is widely used in fields of spraying, paint spraying, drying and the like in furniture and wood industry, chemical coating, metal surface treatment and the like to generate organic waste gas and peculiar smell, and adopts high-quality adsorption activated carbon as an adsorption medium, and the organic waste gas is filtered and adsorbed through a plurality of adsorption layers so as to achieve the aim of purifying the waste gas.
The existing activated carbon adsorption box is poor in adsorption effect, and the efficiency of waste gas discharged out of the adsorption box after being filtered by activated carbon is low, especially under the condition that wind exists outside, the phenomenon that part cannot be removed is caused, so that the waste gas purification efficiency is low.
Although, chinese patent CN201420421953.0, an active carbon adsorption case, disclosed an active carbon adsorption case including the box, the box in install a plurality of active carbon layers, the active carbon layer adopts multichannel drawer type to arrange, active carbon layer divide into left cavity and right cavity two parts with the box inner chamber, the air inlet has been seted up to right cavity up end, the gas outlet has been seted up to left cavity up end, install centrifugal fan in the left cavity, centrifugal fan air outlet just to the gas outlet and centrifugal fan air outlet cover be equipped with the silencer. The activated carbon adsorption box has the advantages of good air dispersing effect and simple structure.
The multichannel drawer type active carbon is arranged, the filtering area is large, the space utilization rate is high, the drawer is fastened and sealed with the box body by adopting the tensioning lock and the sealing rubber strip, the drawer is moderate in size and convenient to replace active carbon, but after the drawer type active carbon is put into practical use, the drawer type active carbon is often maintained, and the drawer type active carbon is not very convenient to use.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the dry active carbon adsorption box for the laboratory, which is convenient to install and detach, has a short maintenance period and can rapidly adsorb harmful gases in the laboratory.
The technical scheme adopted by the invention is as follows: laboratory is with dry-type active carbon adsorption case, including cylinder cylindric box and detachable top cap to and set up at the intake pipe of box bottom and be close to the outlet duct at box top, cylinder cylindric box is from upwards being equipped with filter layer, detachable active carbon adsorption layer and rotation adsorption device down in proper order, wherein: the rotary adsorption device comprises a rotary activated carbon adsorption layer which is fixed on a detachable top cover through a rotating shaft and a rotating motor; the rotary activated carbon adsorption layer comprises an inverted cone-shaped hollow adsorption section, a cylindrical rotary section and a cone-shaped hollow adsorption section which are arranged from top to bottom.
Further, the dry-type activated carbon adsorption box further comprises a PLC controller, and the PLC controller is connected with the rotating motor through a timer.
Further, a harmful gas detector is arranged at the position of the cylindrical box body close to the air outlet pipe, and the PLC is connected with the harmful gas detector, so that the concentration value of the harmful gas at the position of the air outlet pipe is displayed.
Further, an electromagnetic valve is arranged in the air outlet pipe and connected with the PLC controller to control the on-off state of the air outlet pipe.
Further, the distance between the outermost edge of the reverse conical hollow adsorption section and the outermost edge of the conical hollow adsorption section of the rotary activated carbon adsorption layer and the inner wall of the cylindrical box body is 3-6mm respectively.
Further, the cylindrical rotating section of the rotary adsorption device and the inner wall of the cylindrical barrel-shaped box body have a movable gap of 0.5-1.5 mm.
Further, the bottom of the cylindrical box body is also provided with a plurality of supporting feet with the height not lower than 5mm, and the air inlet pipe is connected to the bottom of the cylindrical box body through the suction fan.
Compared with the prior art, the invention has the beneficial effects that: the dry-type active carbon adsorption box for the laboratory uses the cylindrical box body and the rotary air suction device arranged at the top of the cylindrical box body to perform rapid adsorption, the top of the cylindrical box body is fixedly provided with the rotary air suction device through the detachable top cover, and the gas after preliminary adsorption is rapidly adsorbed again, so that the adsorption efficiency of the active adsorption box is improved on one hand, and the rotary active carbon adsorption layer comprises the reverse conical hollow adsorption section, the cylindrical rotary section and the conical hollow adsorption section which are arranged from top to bottom on the other hand, so that the stepped multiple adsorption of harmful gas can be realized, and the adsorption effect is good.
In addition, the position department that cylinder cylindric box is close to the outlet duct still arranges harmful gas detector, and the PLC controller is connected harmful gas detector to show the harmful gas concentration value of outlet duct position department, be convenient for observe the harmful gas's of adsorption case exit concentration in real time.
Finally, the inside of the air outlet pipe is also provided with an electromagnetic valve, the electromagnetic valve is connected with the PLC controller to control the on-off state of the air outlet pipe, when the concentration of harmful gas displayed by the PLC controller does not reach the standard in specific operation, the PLC controller automatically controls the electromagnetic valve to close the purified air outlet of the air outlet pipe, and when the temperature of the harmful gas reaches the standard, the electromagnetic valve is opened again to release purified air, so that the purifying effect is good, and the degree of automation is high.
In general, the dry activated carbon adsorption box for the laboratory is convenient to assemble and disassemble, has a short maintenance period and can rapidly adsorb harmful gases in the laboratory.
Drawings
FIG. 1 is one embodiment of a dry activated carbon adsorption tank for laboratory use;
FIG. 2 is a block diagram of one embodiment of a dry activated carbon adsorption tank for laboratory use having a harmful gas detector;
FIG. 3 is a block diagram of one embodiment of a dry activated carbon adsorption tank for laboratory with a harmful gas detector and a timer, suction fan;
wherein: 1-a cylindrical box body, 2-an air inlet pipe, 3-an air outlet pipe, 4-a filter layer, 5-a detachable active carbon adsorption layer, 6-a rotary adsorption device, 61-a rotary motor, 62-a rotary shaft, 63-a rotary active carbon adsorption layer, 631-an inverted cone-shaped hollow adsorption section, 632-a cylindrical rotary section and 633-a cone-shaped hollow adsorption section; 7-detachable top cover, 8-harmful gas detector, 9-PLC controller, 10-timer, 11-suction fan, 12-solenoid valve, 13-air cavity rotary nest.
Detailed Description
The present invention will be further described with reference to the drawings and examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1, the dry activated carbon adsorption box for laboratory comprises a cylindrical box body 1, a detachable top cover 7, an air inlet pipe 2 arranged at the bottom of the box body and an air outlet pipe 3 close to the top of the box body, wherein the cylindrical box body 1 is sequentially provided with a filter layer 4, a detachable activated carbon adsorption layer 5 and a rotary adsorption device 6 from bottom to top, wherein: a rotary adsorption device 6 including a rotary activated carbon adsorption layer 63 fixed to the detachable top cover 7 through a rotary shaft 62 and a rotary motor 61; the rotary activated carbon adsorption layer 63 includes an inverted cone-shaped hollow adsorption section 631, a cylindrical rotary section 632, and a cone-shaped hollow adsorption section 633 which are disposed from top to bottom. More specifically speaking, rotatory active carbon adsorption layer includes from last hollow adsorption segment of back taper that sets up down, cylindrical rotatory section and the hollow adsorption segment of toper, can realize the cascaded multiple absorption to harmful gas, and the adsorption efficiency is good. The detachable activated carbon adsorption layer 5 is generally fastened on the inner wall of the cylindrical box body 1 by adopting a clamp, and can be directly extracted after replacement or can be extracted by opening the clamp. The detachable upper cover 7 is generally buckled at the top of the cylindrical box body 1, and a sealing collar is paved at the buckling connection part of the detachable upper cover 7 and the cylindrical box body 1.
As shown in fig. 3, the dry activated carbon adsorption box further comprises a PLC controller 9, the PLC controller 9 is connected with the rotary motor 61 through a timer 10, and the PLC controller 9 can be used for controlling the timing value of the timer, so as to control the working state of the rotary motor 61, thereby controlling the on-off of the air outlet pipe, and finally controlling the outlet gas of the adsorption box. In addition, in order to clean the whole adsorption box better, the bottom of the cylindrical box body 1 is also provided with a plurality of supporting feet with the height not less than 5mm, and meanwhile, the air inlet pipe 2 is connected to the bottom of the cylindrical box body 1 through the suction fan 11, so that the adsorption effect is better.
As shown in fig. 2, a harmful gas detector 8 is further arranged at the position of the cylindrical box body 1 close to the air outlet pipe 3, and the plc controller 9 is connected with the harmful gas detector 8, so as to display the concentration value of the harmful gas at the position of the air outlet pipe. The inside of the air outlet pipe 3 is also provided with an electromagnetic valve 12, the electromagnetic valve 12 is connected with the PLC 9 to control the on-off state of the air outlet pipe, when the concentration of harmful gas displayed by the PLC does not reach the standard in specific operation, the PLC automatically controls the electromagnetic valve to close the purified air outlet of the air outlet pipe, and when the temperature of the harmful gas reaches the standard, the electromagnetic valve is opened again to release purified air, so that the purifying effect is good, and the degree of automation is high.
In the above embodiment, the distance between the outermost edge of the inverted cone-shaped hollow adsorption section 631 and the outermost edge of the cone-shaped hollow adsorption section 633 of the rotary activated carbon adsorption layer 63 and the inner wall of the cylindrical case 1 is 3-6mm, respectively, so that two separated air cavity rotary nests 13 are formed between the outer edge of the rotary activated carbon adsorption layer 63 and the inner wall of the cylindrical case, and the two separated air cavity rotary nests 13 temporarily store a part of gas with relatively large weight, and then slowly precipitate for adsorption, thereby having a certain layered adsorption effect and being convenient for cleaning.
In the above embodiment, the cylindrical rotating section 632 of the rotary adsorption device 6 has a movable gap of 0.5-1.5mm with the inner wall of the cylindrical barrel casing 1, so that the cylindrical rotating section 632 can rotate in the cylindrical rotating section 632 more flexibly.
The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.
Claims (4)
1. Laboratory is with dry-type active carbon adsorption case, including cylinder cylindric box (1) and detachable top cap (7) to and set up intake pipe (2) and outlet duct (3) that are close to the box top in the bottom of the case portion, its characterized in that: the cylindrical box body (1) is provided with a filter layer (4), a detachable activated carbon adsorption layer (5) and a rotary adsorption device (6) from top to bottom in sequence, wherein:
a rotary adsorption device (6) comprising a rotary activated carbon adsorption layer (63) fixed on a detachable top cover (7) through a rotary shaft (62) and a rotary motor (61);
the rotary activated carbon adsorption layer (63) comprises an inverted cone-shaped hollow adsorption section (631), a cylindrical rotary section (632) and a cone-shaped hollow adsorption section (633) which are arranged from top to bottom;
a harmful gas detector (8) is further arranged at the position of the cylindrical box body (1) close to the air outlet pipe (3), and the PLC (9) is connected with the harmful gas detector (8), so that the concentration value of the harmful gas at the position of the air outlet pipe is displayed;
an electromagnetic valve (12) is also arranged in the air outlet pipe (3), and the electromagnetic valve (12) is connected with a PLC (programmable logic controller) 9 to control the on-off state of the electromagnetic valve; the dry activated carbon adsorption box further comprises a PLC (programmable logic controller) 9, and the PLC 9 is connected with a rotating motor 61 through a timer 10.
2. The dry activated carbon adsorption case for laboratory according to claim 1, wherein: the outermost edge of the reverse conical hollow adsorption section (631) and the outermost edge of the conical hollow adsorption section (633) of the rotary activated carbon adsorption layer (63) are respectively 3-6mm away from the inner wall of the cylindrical box body (1).
3. The dry activated carbon adsorption tank for laboratory according to claim 1 or 2, wherein: the cylindrical rotating section (632) of the rotary adsorption device (6) and the inner wall of the cylindrical box body (1) have a movable clearance of 0.5-1.5 mm.
4. A dry activated carbon adsorption tank for laboratory as claimed in claim 3, wherein: the bottom of the cylindrical box body (1) is also provided with a plurality of supporting feet with the height not lower than 5mm, and the air inlet pipe (2) is connected to the bottom of the cylindrical box body (1) through the air suction fan (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099407.2A CN108079743B (en) | 2018-02-01 | 2018-02-01 | Dry-type active carbon adsorption box for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099407.2A CN108079743B (en) | 2018-02-01 | 2018-02-01 | Dry-type active carbon adsorption box for laboratory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108079743A CN108079743A (en) | 2018-05-29 |
| CN108079743B true CN108079743B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810099407.2A Active CN108079743B (en) | 2018-02-01 | 2018-02-01 | Dry-type active carbon adsorption box for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108079743B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614009A (en) * | 2019-10-28 | 2019-12-27 | 湖州长城电工新材科技有限公司 | Electromagnetic wire workshop waste gas is synthesized and is collected processing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295585Y (en) * | 2008-11-13 | 2009-08-26 | 嘉园环保股份有限公司 | Flowing type organic waste gas treatment device integrating adsorption and desorption |
| CN202700288U (en) * | 2012-07-31 | 2013-01-30 | 上海通用汽车有限公司 | Air conditioner filter |
| CN105289135A (en) * | 2015-12-14 | 2016-02-03 | 周嘉辉 | Air filter |
| CN106076014A (en) * | 2016-07-28 | 2016-11-09 | 平湖拓伟思自动化设备有限公司 | A kind of welding off-gas recovery purifier |
| CN106677936A (en) * | 2016-11-29 | 2017-05-17 | 成都叮当自动化设备有限公司 | Air filter for automobile engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0750928A (en) * | 1993-08-09 | 1995-02-28 | Shinko Kogyo Kk | Method for treating air in mushroom cultivation room and apparatus for treating air for mushroom cultivation room |
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2018
- 2018-02-01 CN CN201810099407.2A patent/CN108079743B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295585Y (en) * | 2008-11-13 | 2009-08-26 | 嘉园环保股份有限公司 | Flowing type organic waste gas treatment device integrating adsorption and desorption |
| CN202700288U (en) * | 2012-07-31 | 2013-01-30 | 上海通用汽车有限公司 | Air conditioner filter |
| CN105289135A (en) * | 2015-12-14 | 2016-02-03 | 周嘉辉 | Air filter |
| CN106076014A (en) * | 2016-07-28 | 2016-11-09 | 平湖拓伟思自动化设备有限公司 | A kind of welding off-gas recovery purifier |
| CN106677936A (en) * | 2016-11-29 | 2017-05-17 | 成都叮当自动化设备有限公司 | Air filter for automobile engine |
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|---|---|
| CN108079743A (en) | 2018-05-29 |
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Address after: Building 1, No. 396 Binjiang Avenue, Nanjing Area, China (Jiangsu) Pilot Free Trade Zone, Nanjing City, Jiangsu Province, 210000 Patentee after: Jiangsu Kulinan Laboratory System Engineering Co.,Ltd. Address before: Room 1107, Unit 4, Building 6, Block 1, Venice Water City, No. 198, Lou Liuzhou East Road, Pukou District, Nanjing City, Jiangsu Province, 210000 Patentee before: JIANGSU CULLN EXPERIMENT EQUIPMENT CO.,LTD. |