CN105107296A - Dust removal device special for transformer substation - Google Patents
Dust removal device special for transformer substation Download PDFInfo
- Publication number
- CN105107296A CN105107296A CN201510572546.9A CN201510572546A CN105107296A CN 105107296 A CN105107296 A CN 105107296A CN 201510572546 A CN201510572546 A CN 201510572546A CN 105107296 A CN105107296 A CN 105107296A
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- China
- Prior art keywords
- dust
- air outlet
- transformer station
- tube connector
- drive motors
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Filtering Of Dispersed Particles In Gases (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a dust removal device special for a transformer substation, and the dust removal device is simple in structure and convenient to operate. The dust removal device comprises a box and connecting pipes; in order to blow air and remove dust simultaneously, and the box is provided with a suction inlet and an air outlet which are connected with the connecting pipes respectively; the box is internally provided with a driving cavity, at least one filter net and a dust accumulating cavity in sequence, a driving motor and blades are arranged in the driving cavity and form a blowing-suction dual-purpose fan, namely the two layers of blades are arranged on the driving motor, the blades on one layer form an air blowing side under the driving of the driving motor, the blades on the other layer form an air suction side under the driving of the driving motor, the suction inlet and the dust accumulating cavity are formed in the air draft side, and the air outlet is formed in the air blowing side. By means of the dust removal device, the problems that at present, dust removal for devices in the transformer substation is large in workload, sweeping is not thorough, and the work is difficult are solved.
Description
Technical field
The invention belongs to electric smoke precipitation technical field, particularly relate to a kind of transformer station special dust-removing equipment.
Background technology
The cleaning of transformer station box equipment is a groundwork of power transformation O&M specialty, and because most of transformer substation construction is on suburb, Gobi desert, Xinjiang region strong wind weather is frequent in addition, and most of station equipment is the easy dust stratification of outdoor equipment especially.Therefore, in time, finishing equipment cleaning works effectively, significant to the safe and stable operation of station equipment; At present, the transformer station of more than 70% has needed a cleaning works " summer peak meeting " is front, and Problems existing is: (one), general cleaning major way clean for artificial hairbrush and rag cooperation, and therefore, workload is huge; (2), some position, angle of power transformation station equipment manually not easily contacts, and therefore, cleaning is not thoroughly and work difficulty is high.Based on the problems referred to above, this application provides transformer station's special dust seperator that a kind of structure is simple, easy to operate, solve existing, cleaning large to workload during substation equipment dedusting thoroughly and the high problem of work difficulty.
Summary of the invention
The object of this invention is to provide a kind of transformer station special dust-removing equipment, solve existing, cleaning large to workload during substation equipment dedusting thoroughly and the high problem of work difficulty.
In order to solve the problem, this application provides a kind of transformer station special dust-removing equipment, comprise casing (1) and tube connector (11), described casing (1) is provided with air outlet (13) and suction port (12), and described air outlet (13) and suction port (12) are connected with described tube connector (11), actuator chamber (14) is provided with successively in described casing (1), at least one metafiltration net (18) and laying dust chamber (15), drive motors (16) and blade (17) is provided with in described actuator chamber (14), described drive motors (16) and described blade (17) constitute pressure-vaccum Dual-purpose fan, namely drive motors (16) drives and is provided with two-layer blade (17), wherein one deck blade (17) defines air blast side under the driving of drive motors (16), another layer of blade (17) defines air draught side under the driving of drive motors (16), described suction port (12) is arranged on described air draught side, described air outlet (13) is arranged on described air blast side.
As the preferred version of the application, described filter screen (18) is arranged in described laying dust chamber (15); Or described filter screen (18) is arranged in described actuator chamber (14).
As the preferred version of the application, the end of the tube connector (11) be connected with described suction port (12) is provided with dust absorption nozzle (121), described dust absorption nozzle (121) in umbrella, funnel-form or offset flat shape, and dust absorption nozzle (121) is provided with hairbrush around; The end of the tube connector (11) be connected with described air outlet (13) is provided with blowing mouth (131), described blowing mouth (131) is in taper or offset flat shape, and blowing mouth (131) is provided with hairbrush and/or brush shovel.
As the preferred version of the application, comprise pressure-vaccum mouth (20), described pressure-vaccum mouth (20) comprises housing section (201) and interface portion, be provided with baffle plate (204) in described housing section (201), the inside of housing section (201) is divided into exhaust passage and dust-absorbing flue by described baffle plate (204); Described interface section is interface portion A (202) and interface portion B (203), described interface portion A (202) is connected to tube connector (11) end port be connected with described suction port (12), and described interface portion B (203) is connected to tube connector (11) end port be connected with described air outlet (13).
As the preferred version of the application, described casing (1) bottom is provided with wheel (21), and described wheel (21) is the universal wheel with locking device; The described tube connector (11) be connected with described suction port (12) and/or described air outlet (13) is provided with binding device (22), and described binding device (22) comprises bandage or clip; Dust deposited case (151) is provided with in described laying dust chamber (15); At least side of described filter screen (18) is provided with cleaning brush (19), and described cleaning brush (19) is driven by motor or bearing.
As the preferred version of the application, described casing (1) outside is provided with solar electric power supply system, described solar electric power supply system comprises solar panel, electric pressure converter and photovoltaic cell, and described solar electric power supply system provides institute's subfam. Spiraeoideae for described drive motors (16).
Beneficial effect
The invention provides transformer station's special dust-removing equipment that a kind of structure is simple, easy to operate, this equipment comprises casing and tube connector, in order to realize drying and dust suction simultaneously, the application is provided with suction port and air outlet on casing, and suction port and air outlet place are connected to tube connector, actuator chamber, at least one metafiltration net and laying dust chamber is provided with successively in casing, drive motors and blade is provided with in actuator chamber, drive motors and blade constitute pressure-vaccum Dual-purpose fan, namely drive motors drives upper and lower two-layer blade rotation simultaneously, this two-layer leaf packet contains structure identical or different blade A and blade B, its Leaf A defines air blast side under the driving of drive motors, blade B defines air draught side under the driving of drive motors, suction port and laying dust chamber are arranged on air draught side, and air outlet is arranged on air blast side, in use, start drive motors, this motor driven vane A and blade B rotates simultaneously, outwards dried by air outlet in air blast side, object is blown afloat by the dust in transformer station's relevant device, then dust is filtered in laying dust chamber by filter screen by suction port by air draught side by the dust inspiration blown afloat and be scattered, therefore, utilize the cleaner in the application, not only the dust in transformer station's relevant device can be siphoned away, simultaneously, the dust at the position that also suction port in equipment not easily can be touched is blown afloat by air outlet, suction port is facilitated to draw, namely the cleaner in the application is utilized, solve existing large to workload during substation equipment dedusting, the problem that cleaning is not thorough and work difficulty is high.
Accompanying drawing explanation
Fig. 1 is a kind of transformer station special dust-removing equipment cross-sectional view that the embodiment of the present invention provides;
Fig. 2 is the blade construction schematic diagram that the embodiment of the present invention provides;
Fig. 3 is the drive motors internal circuit configuration schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the pressure-vaccum mouth structure schematic diagram that the embodiment of the present invention provides;
Fig. 5 is the solar electric power supply system that the embodiment of the present invention provides is the structural representation that drive motors is powered.
Reference numeral:
Casing 1, tube connector 11, suction port 12, dust absorption nozzle 121, air outlet 13, blowing mouth 131, actuator chamber 14, laying dust chamber 15, dust deposited case 151, motor 16, blade 17, blade A171, blade B172, filter screen 18, cleaning brush 19, pressure-vaccum mouth 20, housing section 201, interface portion A202, interface portion B203, baffle plate 204, wheel 21, binding device 22.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.
Embodiment 1:
Present embodiments provide transformer station's special dust-removing equipment that a kind of structure is simple, easy to operate, see Fig. 1, it is transformer station's cleaner cross-sectional view that the present embodiment provides, this equipment comprises casing 1 and tube connector 11, in order to realize drying and dust suction simultaneously, the present embodiment is provided with suction port 12 and air outlet 13 on casing 1, suction port 12 and air outlet 13 place are connected to tube connector 11, in the present embodiment, conveniently use, air outlet 13 is arranged on the top of casing 1, and suction port 12 is arranged on the middle part of casing 1, actuator chamber 14 is provided with successively in casing 1, at least one metafiltration net 18 and laying dust chamber 15, drive motors 16 and blade 17 is provided with in actuator chamber 14, drive motors 16 and blade 17 constitute pressure-vaccum Dual-purpose fan, namely drive motors 16 drives upper and lower two-layer blade rotation simultaneously, this two-layer leaf packet contains structure identical or different blade A171 and blade B172, its Leaf A171 defines air blast side under the driving of drive motors, blade B172 defines air draught side under the driving of drive motors, suction port 12 and laying dust chamber 15 are arranged on air draught side, air outlet 13 is arranged on air blast side, in order to there be better filter effect, guarantee that the air of discharging is clean, air draught side is provided with at least one metafiltration net 18, in the present embodiment, preferably suction port 12 is placed in casing 1 middle and lower part, absorbs dust and enter in laying dust chamber 15.In use, start drive motors 16, this motor 16 driven vane A171 and blade B172 rotates simultaneously, outwards dried by air outlet 13 in air blast side, object is blown afloat by the dust in transformer station's relevant device, then dust is filtered in laying dust chamber 15 by filter screen 18 by suction port 12 by air draught side by the dust inspiration blown afloat and be scattered, therefore, utilize the cleaner in the present embodiment, not only the dust in transformer station's relevant device can be drawn, simultaneously, the dust at the position that also suction port in equipment 12 not easily can be touched is blown afloat by air outlet 13, suction port 12 is facilitated to draw, namely the cleaner in the present embodiment is utilized, solve existing large to workload during substation equipment dedusting, the problem that cleaning is not thorough and work difficulty is high.
In the present embodiment, tube connector 11 adopts soft telescopic pvc pipe, is convenient to import and export and adjusts to suitable position, carry out omnibearing cleaning to equipment; Casing 1 is ABS material.
In the present embodiment, the blade A171 that drive motors 16 drives and blade B172 rotates simultaneously and forms air blast side and air draught side, and the wind-force that air draught side and air blast side can utilize the back side each other to produce mutually, avoids the waste of wind-force.In the present embodiment, described blade 17 is the blade 17 that five leaves are integrally formed, and see Fig. 2, this five leaves one blade 17 can produce stronger wind-force.
In the present embodiment, described drive motors 16 is universal motor 16, and also known as general motor, this motor 16 is in fact D.C. series motor, electric current is inputted armature winding by electromechanical brush through turning to electrical equipment by its immanent structure, and its magnetic field forms the form of connecting with armature winding.The turning to of dual-purpose motor 16 switches very convenient, as long as change-over switch is by field coil reversal connection, can realize the reverse of motor 16 rotor and clockwise.Just in order to make it adapt to ac operation, whole magnetic circuit system is all made up of lamination, to reduce eddy current.On stator except Exciting Windings for Transverse Differential Protection F and commutating-pole winding FD, also set up compensative winding Fs, when running with limiting AC, armature winding produces excessive reactance pressure drop and improves commutation, and its theory structure is see Fig. 3.
Further, in the present embodiment, the end of the tube connector 11 be connected with suction port 12 is provided with dust absorption nozzle 121, described dust absorption nozzle 121 is in umbrella, funnel-form or offset flat shape, increase collection scope, be convenient to a large amount of attractions of dust, and be provided with hairbrush around dust absorption nozzle 121, dust can be assembled by hairbrush, reduce the scope drawing dust; The end of the tube connector 11 be connected with air outlet 13 is provided with blowing mouth 131, described blowing mouth 131 is in taper or offset flat shape, increase the wind-force of air outlet 13, be more conducive to kicking up of dust on equipment, and blowing mouth 131 is provided with hairbrush and/or brush shovel, utilize brush shovel the dust pasted or impurity can be scooped up, facilitate suction port 12 to draw.
Further, in the present embodiment, conveniently user moves and carries this cleaner, is preferably provided with wheel 21 in described casing 1 bottom, and this wheel 21 is the universal wheel with locking device;
Conveniently carry tube connector 11, preferably on the tube connector 11 be connected with described suction port 12 and/or described air outlet 13, binding device 22 is provided with in the present embodiment, this binding device 22 comprises bandage or fixing buckle, by bandage or fixing buckle, two tube connectors are bound together in case of need, facilitate one man operation.
The dust of cleaner inside, when carrying out inner dust removing or cleaning, can be removed by suction port 12 by the cleaner in the present embodiment; Maybe the position being provided with actuator chamber 14 is taken off from casing 1, then clear up.
In the present embodiment, conveniently clear up, the present embodiment is preferably provided with dust deposited case 151 in laying dust chamber 15, during cleaning, can directly be taken out by dust deposited case 151.
Embodiment 2:
Compared with embodiment 1, in order to better filter effect can be had, the present embodiment is preferably provided with three metafiltration nets 18, this filter screen 18 is arranged in laying dust chamber 15 (see Fig. 1), this set-up mode can avoid drive motors and blade to be subject to the pollution of a small amount of dust, meanwhile, also can better dust be filtered in laying dust chamber; Or this filter screen 18 is arranged in actuator chamber 14, this set-up mode increases the locus in laying dust chamber; In the present embodiment, preferably this filter screen 18 is arranged in laying dust chamber 15.
In the present embodiment, the at least side of preferred filter screen 18 is provided with cleaning brush 19, this cleaning brush 19 is driven by motor or bearing, and the dust cleaning can will filter screen 19 pasted by this cleaning brush 19, avoids filter screen to be subject to dust pollute and cause the problem of poor filtration effect.
Embodiment 3:
Compare with 2 with embodiment 1, the difference of the present embodiment is to comprise pressure-vaccum mouth 20 (see Fig. 4), this pressure-vaccum mouth 20 comprises housing section 201 and interface portion, is provided with baffle plate 204 in described housing section 201, and housing section 201 inside is divided into exhaust passage and dust-absorbing flue by this baffle plate 204; Described interface section is interface portion A202 and interface portion B203, described interface portion A202 is connected to tube connector 11 end port be connected with suction port 12, described interface portion B203 is connected to tube connector 11 end port be connected with air outlet 13, by this pressure-vaccum mouth 20, the tube connector 11 being used for dust suction can be bound together with the tube connector 11 being used for air-out, easy to use.
Embodiment 4:
Compared with above-described embodiment, the difference of the present embodiment is, solar electric power supply system is provided with outside casing 1, this solar electric power supply system comprises solar panel, electric pressure converter and photovoltaic cell, solar electric power supply system provides institute's subfam. Spiraeoideae for drive motors 16, concrete structure figure is see Fig. 5, in use, solar panel gathers luminous energy, the delivery of electrical energy that solar panel collects by electric pressure converter stores to photovoltaic cell, then for drive motors 16 provides institute's subfam. Spiraeoideae, the present embodiment arranges solar electric power supply system outside cleaner, avoid the problem that cleaner cannot normally work under power-off condition, simultaneously, be that drive motors 16 is powered by solar electric power supply system, avoid existing by wired for drive motors 16 is powered and cause cleaner to move or carry inconvenient problem.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. transformer station's special dust-removing equipment, comprise casing (1) and tube connector (11), it is characterized in that, described casing (1) is provided with air outlet (13) and suction port (12), and described air outlet (13) and suction port (12) are connected with described tube connector (11), actuator chamber (14) is provided with successively in described casing (1), at least one metafiltration net (18) and laying dust chamber (15), drive motors (16) and blade (17) is provided with in described actuator chamber (14), described drive motors (16) and described blade (17) constitute pressure-vaccum Dual-purpose fan, namely drive motors (16) is provided with two-layer blade (17), wherein one deck blade (17) defines air blast side under the driving of drive motors (16), another layer of blade (17) defines air draught side under the driving of drive motors (16), described suction port (12) and described laying dust chamber (15) are arranged on described air draught side, described air outlet (13) is arranged on described air blast side.
2. transformer station as claimed in claim 1 special dust-removing equipment, it is characterized in that, described filter screen (18) is arranged in described laying dust chamber (15); Or described filter screen (18) is arranged in described actuator chamber (14).
3. transformer station as claimed in claim 1 or 2 special dust-removing equipment, it is characterized in that, the end of the tube connector (11) be connected with described suction port (12) is provided with dust absorption nozzle (121), described dust absorption nozzle (121) in umbrella, funnel-form or offset flat shape, and dust absorption nozzle (121) is provided with hairbrush around; The end of the tube connector (11) be connected with described air outlet (13) is provided with blowing mouth (131), described blowing mouth (131) is in taper or offset flat shape, and blowing mouth (131) is provided with hairbrush and/or brush shovel.
4. transformer station as claimed in claim 1 or 2 special dust-removing equipment, it is characterized in that, comprise pressure-vaccum mouth (20), described pressure-vaccum mouth (20) comprises housing section (201) and interface portion, be provided with baffle plate (204) in described housing section (201), the inside of housing section (201) is divided into exhaust passage and dust-absorbing flue by described baffle plate (204); Described interface section is interface portion A (202) and interface portion B (203), described interface portion A (202) is connected to tube connector (11) end port be connected with described suction port (12), and described interface portion B (203) is connected to tube connector (11) end port be connected with described air outlet (13).
5. transformer station as claimed in claim 1 or 2 special dust-removing equipment, it is characterized in that, described casing (1) bottom is provided with wheel (21), and described wheel (21) is the universal wheel with locking device; The described tube connector (11) be connected with described suction port (12) and/or described air outlet (13) is provided with binding device (22), and described binding device (22) comprises bandage or fixing buckle; Dust deposited case (151) is provided with in described laying dust chamber (15); At least side of described filter screen (18) is provided with cleaning brush (19), and described cleaning brush (19) is driven by motor or bearing.
6. transformer station as claimed in claim 3 special dust-removing equipment, it is characterized in that, described casing (1) bottom is provided with wheel (21), and described wheel (21) is the universal wheel with locking device; The described tube connector (11) be connected with described suction port (12) and/or described air outlet (13) is provided with binding device (22), and described binding device (22) comprises bandage or clip; Dust deposited case (151) is provided with in described laying dust chamber (15); At least side of described filter screen (18) is provided with cleaning brush (19), and described cleaning brush (19) is driven by motor or bearing.
7. transformer station as claimed in claim 4 special dust-removing equipment, it is characterized in that, described casing (1) bottom is provided with wheel (21), and described wheel (21) is the universal wheel with locking device; The described tube connector (11) be connected with described suction port (12) and/or described air outlet (13) is provided with binding device (22), and described binding device (22) comprises bandage or clip; Dust deposited case (151) is provided with in described laying dust chamber (15); At least side of described filter screen (18) is provided with cleaning brush (19), and described cleaning brush (19) is driven by motor or bearing.
8. transformer station as claimed in claim 1 or 2 special dust-removing equipment, it is characterized in that, described casing (1) outside is provided with solar electric power supply system, described solar electric power supply system comprises solar panel, electric pressure converter and photovoltaic cell, and described solar electric power supply system provides institute's subfam. Spiraeoideae for described drive motors (16).
9. transformer station as claimed in claim 3 special dust-removing equipment, it is characterized in that, described casing (1) outside is provided with solar electric power supply system, described solar electric power supply system comprises solar panel, electric pressure converter and photovoltaic cell, and described solar electric power supply system provides institute's subfam. Spiraeoideae for described drive motors (16).
10. transformer station as claimed in claim 4 special dust-removing equipment, it is characterized in that, described casing (1) outside is provided with solar electric power supply system, described solar electric power supply system comprises solar panel, electric pressure converter and photovoltaic cell, and described solar electric power supply system provides institute's subfam. Spiraeoideae for described drive motors (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572546.9A CN105107296B (en) | 2015-09-09 | 2015-09-09 | A kind of transformer station's special dust-removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572546.9A CN105107296B (en) | 2015-09-09 | 2015-09-09 | A kind of transformer station's special dust-removing equipment |
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| Publication Number | Publication Date |
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| CN105107296A true CN105107296A (en) | 2015-12-02 |
| CN105107296B CN105107296B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510572546.9A Active CN105107296B (en) | 2015-09-09 | 2015-09-09 | A kind of transformer station's special dust-removing equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921464A (en) * | 2016-05-19 | 2016-09-07 | 国家电网公司 | Substation screen cabinet cleaning tool |
| CN106076017A (en) * | 2016-08-18 | 2016-11-09 | 太仓市冠东机械科技有限公司 | A kind of electrical dust-removing exhauster |
| CN108500008A (en) * | 2018-03-09 | 2018-09-07 | 昆山国显光电有限公司 | reaction chamber cleaning device |
| CN108758438A (en) * | 2018-06-21 | 2018-11-06 | 邓宏朝 | A kind of outdoor water-proof dust-proof lamp |
| CN109980478A (en) * | 2019-03-05 | 2019-07-05 | 沧州华海风电设备科技技术开发有限公司 | A kind of current collection assembly and dust suction purification system |
| CN110888295A (en) * | 2019-12-03 | 2020-03-17 | 刘桂稳 | Novel projector curtain frame |
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| CN201350040Y (en) * | 2009-02-09 | 2009-11-25 | 吴京天 | High-efficiency blow and suction type dust collector |
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| CN204012142U (en) * | 2014-08-06 | 2014-12-10 | 梧州市气象局 | Radar antenna collector ring automatic cleaning apparatus |
| CN204891426U (en) * | 2015-09-09 | 2015-12-23 | 国网新疆电力公司奎屯供电公司 | Special dust collecting equipment of transformer substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2128519Y (en) * | 1992-06-03 | 1993-03-24 | 胡久明 | Blowing-sucking combined dust collector |
| CN201350040Y (en) * | 2009-02-09 | 2009-11-25 | 吴京天 | High-efficiency blow and suction type dust collector |
| CN202146687U (en) * | 2011-07-01 | 2012-02-22 | 苏州俊景环保科技有限公司 | Small-sized movable cartridge filter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921464A (en) * | 2016-05-19 | 2016-09-07 | 国家电网公司 | Substation screen cabinet cleaning tool |
| CN105921464B (en) * | 2016-05-19 | 2018-03-13 | 国家电网公司 | Substation cabinet cleaning device |
| CN106076017A (en) * | 2016-08-18 | 2016-11-09 | 太仓市冠东机械科技有限公司 | A kind of electrical dust-removing exhauster |
| CN108500008A (en) * | 2018-03-09 | 2018-09-07 | 昆山国显光电有限公司 | reaction chamber cleaning device |
| CN108758438A (en) * | 2018-06-21 | 2018-11-06 | 邓宏朝 | A kind of outdoor water-proof dust-proof lamp |
| CN109980478A (en) * | 2019-03-05 | 2019-07-05 | 沧州华海风电设备科技技术开发有限公司 | A kind of current collection assembly and dust suction purification system |
| CN110888295A (en) * | 2019-12-03 | 2020-03-17 | 刘桂稳 | Novel projector curtain frame |
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| CN105107296B (en) | 2017-08-08 |
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