CN107492817B - Self-dedusting ventilation filtering device for intelligent substation - Google Patents
Self-dedusting ventilation filtering device for intelligent substation Download PDFInfo
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- CN107492817B CN107492817B CN201710887411.0A CN201710887411A CN107492817B CN 107492817 B CN107492817 B CN 107492817B CN 201710887411 A CN201710887411 A CN 201710887411A CN 107492817 B CN107492817 B CN 107492817B
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- Prior art keywords
- filter
- frame
- blowing pipe
- air blowing
- transmission wheel
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- 238000001914 filtration Methods 0.000 title claims abstract description 16
- 238000009423 ventilation Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 238000007664 blowing Methods 0.000 claims abstract description 43
- 239000000428 dust Substances 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009133 cooperative interaction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
-
- 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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention relates to a self-dedusting ventilation filtering device for an intelligent substation, which comprises a frame, a shutter, a filter, a power mechanism, a travelling mechanism, an air blowing pipe and a vibration mechanism, wherein the shutter is arranged on the frame; the shutter is fixed to be set up in on the frame, the filter activity set up on the frame and cover in the shutter is inboard, power unit with running gear is fixed set up in on the frame, power unit drives running gear moves, the gas blowing pipe set up in on the running gear, running gear drives the gas blowing pipe is in the filter is inboard to be removed, and then makes the gas blowing pipe scans the process the filter is regional, just the gas blowing pipe blows to the outside, vibrating mechanism set up in on the running gear, running gear passes through vibrating mechanism drives the filter vibrates, the filter cooperates when vibrating the gas blowing of gas blowing pipe carries out automatic dust removal action. The intelligent dust collector has the advantages of intelligent dust collection and maintenance-free.
Description
Technical Field
The invention relates to the field of transformer substations, in particular to a ventilation filtering device thereof.
Background
The intelligent transformer station adopts advanced, reliable, integrated and environment-friendly intelligent equipment, takes total station information digitization, communication platform networking and information sharing standardization as basic requirements, automatically completes basic functions such as information acquisition, measurement, control, protection, metering and detection, and simultaneously has the advanced functions of supporting real-time automatic control, intelligent regulation, online analysis decision-making, collaborative interaction and the like of a power grid. Because the intelligent substation has more precise equipment, the requirements on ventilation, heat dissipation and air quality are higher, and in addition, the intelligent substation has high-pressure and strong magnetic field environments, so maintenance personnel are inconvenient to enter frequently. Therefore, the existing intelligent transformer station is generally provided with a ventilation and filtration device for ventilation and heat dissipation as well as air purification. The common ventilation filter device comprises a shutter and filter cotton fixed on the shutter, but wind resistance is increased after dust accumulation for a period of time, and the filter cotton needs to be replaced manually and timely, so that the conventional ventilation filter device cannot meet the application requirements of no maintenance or less maintenance, high purification and intellectualization of an intelligent substation.
Therefore, how to improve the ventilation and filtration device of the existing intelligent substation so as to overcome the above problems is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a self-dedusting ventilating filtering device for an intelligent substation, which can intelligently remove dust and is maintenance-free.
In order to achieve the above purpose, the invention adopts the following technical scheme: a self-dedusting ventilation filtering device for an intelligent substation comprises a frame, a shutter, a filter, a power mechanism, a travelling mechanism, an air blowing pipe and a vibrating mechanism; the shutter is fixedly arranged on the frame, the filter is movably arranged on the frame and covers the inner side of the shutter, the power mechanism and the travelling mechanism are fixedly arranged on the frame, the power mechanism drives the travelling mechanism to move, the air blowing pipe is arranged on the travelling mechanism, the travelling mechanism drives the air blowing pipe to move on the inner side of the filter, the air blowing pipe is further enabled to scan through the area where the filter is located, the air blowing pipe blows air outwards, the vibrating mechanism is arranged on the travelling mechanism, the travelling mechanism drives the filter to vibrate through the vibrating mechanism, and the filter is matched with the air blowing of the air blowing pipe to perform automatic dust removal action when vibrating.
Preferably, the walking mechanism comprises two groups of transmission wheel shafts and two transmission belts, the transmission wheel shafts are rotatably arranged at two ends of the frame, the transmission belts are matched between the two groups of transmission wheel shafts, the power mechanism drives one group of transmission wheel shafts to rotate, the air blowing pipe is fixedly arranged on the transmission belt, the power mechanism controls the transmission wheel shafts to bidirectionally rotate, and then the air blowing pipe moves back and forth, and the air blowing pipe passes through the area where the filter is located for multiple times.
Still preferably, the vibration mechanism includes a cam and a boss, the cam is fixedly arranged on the transmission wheel shaft and synchronously rotates along with the transmission wheel shaft, the boss is fixedly arranged on the filter, and the transmission wheel shaft drives the cam to intermittently contact with the boss, so that the filter vibrates.
Preferably, the cam has a first plane and a first inclined plane, the boss has a second plane and a second inclined plane, the first plane and the second plane are in contact when the transmission wheel shaft rotates forward, the filter vibrates parallel to the plane direction of the filter, the first inclined plane and the second inclined plane are in contact when the transmission wheel shaft rotates backward, and the filter vibrates perpendicular to the plane direction of the filter.
Preferably, one end of the filter is provided with a positioning pin hole, one end of the frame is provided with a positioning pin, the positioning pin is sleeved with a spring, the positioning pin is matched with the positioning pin hole, the filter is allowed to vibrate in a direction parallel to the plane direction of the filter, and the spring has a resetting effect; a spring piece is arranged between the other end of the filter and the other end of the frame, and is compressed when the first inclined surface and the second inclined surface are contacted, and is loosened when the first inclined surface and the second inclined surface are not contacted, so that the filter is allowed to vibrate in a direction perpendicular to the plane direction of the filter.
As an improvement, a first limit micro switch and a second limit micro switch are further arranged at two ends of the frame respectively, and the first limit micro switch and the second limit micro switch are matched to limit the travel range of the reciprocating motion of the air blowing pipe.
Preferably, the transmission wheel shaft is a belt pulley shaft, and the transmission belt is a belt.
As actual design demand, the frame includes frame and inside casing, the shutter install in on the frame, the filter the power unit, running gear, the gas blow pipe with vibration mechanism installs in on the inside casing. Wherein the outer frame is arranged at the outermost side, and has the functions of fixing, sealing and attractive appearance.
As a conventional arrangement, the power mechanism includes a motor and a decelerator that controls the velocity of the reciprocating movement of the blowing pipe within a reasonable range.
Compared with the prior art, the invention has the advantages that: the scheme adopts a method of combining mechanical vibration and reverse blowing to realize timed automatic dust removal, prolongs the service life of the filter, solves the problem of frequent manual replacement of the filter under high-pressure environment, and ensures that the ventilation filter device of the intelligent substation achieves the aims of maintenance-free or maintenance-free, safe and intelligent application.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;
FIG. 2 is a front view of a preferred embodiment according to the present invention;
FIG. 3 is a rear view of a preferred embodiment according to the present invention;
FIG. 4 is a side view of a preferred embodiment according to the present invention;
FIG. 5 is an enlarged view at A in FIG. 3 according to a preferred embodiment of the present invention;
FIG. 6 is an enlarged view at B in FIG. 3 according to a preferred embodiment of the present invention;
FIG. 7 is a front view of a filter and boss in accordance with a preferred embodiment of the present invention;
FIG. 8 is a top view of a filter and boss in accordance with a preferred embodiment of the present invention;
FIG. 9 is a side view of a filter and boss in accordance with a preferred embodiment of the present invention;
figure 10 is a schematic view of a spring leaf according to a preferred embodiment of the present invention;
FIG. 11 is a schematic view of a cam in accordance with a preferred embodiment of the present invention;
FIG. 12 is an enlarged view at C in FIG. 9 in accordance with a preferred embodiment of the present invention;
FIG. 13 is a schematic view of the structure of the first plane and the second plane in contact in a preferred embodiment according to the present invention;
fig. 14 is a schematic view showing a structure in which the first inclined surface and the second inclined surface are in contact in a preferred embodiment according to the present invention.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
As shown in fig. 1 to 14, a preferred embodiment of the present invention comprises a frame 1, a shutter 2 (the shutter is a rainproof air inlet window and is composed of a plurality of blades inclined from inside to outside), a filter 3 (the filter is a piece of synthetic filter cotton sandwiched by two inner and outer grids, the synthetic filter cotton is customized by a special process, the outer side is sparse and inner side is dense, and the waterproof and fireproof functions are achieved), a power mechanism 4, a running mechanism 5, an air blowing pipe 6 and a vibration mechanism 7.
Specifically, shutter 2 is fixed to be set up on frame 1, filter 3 activity sets up on frame 1 and covers in shutter 2 inboard, power unit 4 and running gear 5 are fixed to be set up on frame 1, power unit 4 drives running gear 5 motion, blow pipe 6 sets up on running gear 5, running gear 5 drives blow pipe 6 and moves in filter 3 inboard, and then make blow pipe 6 scan through filter 3 place region, and blow pipe 6 blows to the outside, vibration mechanism 7 sets up on running gear 5, running gear 5 drives filter 3 vibration through vibration mechanism 7, the blowing of cooperation blow pipe 6 carries out automatic dust removal action when filter 3 vibrates. In this embodiment, the power mechanism 4, the travelling mechanism 5, the air blowing pipe 6 and the vibration mechanism 7 are all in intermittent operation, and are controlled by an external controller to work once at intervals, for example, once a week for 5 minutes, and can be specifically set on the controller. In addition, the air blowing pipe 6 is connected with an air pump through an external soft air pipe, and the timing air blowing is controlled through an air valve.
The running mechanism 5 comprises two groups of transmission wheel shafts 51 and a transmission belt 52, the transmission wheel shafts 51 are rotatably arranged at the upper end and the lower end of the frame 1, the transmission belt 52 is matched between the two groups of transmission wheel shafts 51, the power mechanism 4 drives one group of transmission wheel shafts 51 to rotate, the air blowing pipe 6 is fixedly arranged on the transmission belt 52, the power mechanism 4 controls the transmission wheel shafts 51 to bidirectionally rotate, the air blowing pipe 6 further moves back and forth, the multiple scanning passes through the area where the filter 3 is located, the transmission wheel shafts 51 are fixed at the upper end and the lower end in the embodiment, and the air blowing pipe 6 moves back and forth up and down. Also in this embodiment, the transmission wheel shaft 51 is a pulley shaft, and the transmission belt 52 is a belt.
The vibration mechanism 7 comprises a cam 71 and a boss 72, wherein the cam 71 is fixedly arranged on the transmission wheel shaft 51 and synchronously rotates along with the transmission wheel shaft 51, the boss 72 is fixedly arranged on the filter 3, and the transmission wheel shaft 51 drives the cam 71 to intermittently contact with the boss 72, so that the filter 3 vibrates. Wherein the cam 71 has a first plane 711 and a first inclined plane 712, the boss 72 has a second plane 721 and a second inclined plane 722, when the transmission wheel shaft 51 rotates forward (the forward rotation is only relative, and does not limit the actual rotation direction), the first plane 711 and the second plane 721 contact, the filter 3 vibrates in a direction parallel to the plane of the filter 3, and when the transmission wheel shaft 51 rotates reversely, the first inclined plane 712 and the second inclined plane 722 contact, and the filter 3 vibrates in a direction perpendicular to the plane of the filter 3. In addition, the upper end of the filter 3 is provided with a positioning pin hole 31, the upper end of the frame 1 is provided with a positioning pin, the positioning pin is sleeved with a spring, the positioning pin is matched with the positioning pin hole 31, the filter 3 is allowed to vibrate in a direction parallel to the plane direction of the filter 3, and the spring plays a role in resetting; (since the positioning pin and the spring are commonly used in the art and are not shown in the drawings.) a spring piece 32 is provided between the lower end of the filter 3 and the lower end of the frame 1 (in this embodiment, the spring piece 32 is fixed to the filter 3 and contacts the frame 1 to be slidable on the frame 1), and the spring piece 32 is compressed when the first inclined surface 712 and the second inclined surface 722 are contacted and released when not contacted, allowing the vibration of the filter 3 perpendicular to the plane direction of the filter 3. In this embodiment, the two vibration modes are up-down vibration and front-back vibration, respectively.
In addition, in order to limit the travel range of the up-and-down reciprocating motion of the air blowing pipe 6, the upper end and the lower end of the frame 1 are respectively provided with a first limit micro switch 8 and a second limit micro switch 9.
In this embodiment, the frame 1 includes an outer frame 11 and an inner frame 12, the louver 2 is mounted on the outer frame 11, and the filter 3, the power mechanism 4, the traveling mechanism 5, the air blowing pipe 6, and the vibration mechanism 7 are mounted on the inner frame 12.
In order to control the speed of the back and forth movement of the blowing pipe 6 within a reasonable range, the power mechanism 4 includes a motor 41 and a decelerator 42.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an intelligent substation is with from dust removal ventilation filter equipment which characterized in that: comprises a frame, a shutter, a filter, a power mechanism, a travelling mechanism, an air blowing pipe and a vibrating mechanism; the shutter is fixedly arranged on the frame, the filter is movably arranged on the frame and covers the inner side of the shutter, the power mechanism and the travelling mechanism are fixedly arranged on the frame, the power mechanism drives the travelling mechanism to move, the air blowing pipe is arranged on the travelling mechanism, the travelling mechanism drives the air blowing pipe to move on the inner side of the filter, the air blowing pipe is further enabled to scan through the area where the filter is located, the air blowing pipe blows air outwards, the vibrating mechanism is arranged on the travelling mechanism, the travelling mechanism drives the filter to vibrate through the vibrating mechanism, and the filter is matched with the air blowing of the air blowing pipe to perform automatic dust removal action when vibrating.
2. The self-dedusting ventilating filtering apparatus for intelligent substation according to claim 1, wherein: the walking mechanism comprises two groups of transmission wheel shafts and two transmission belts, the transmission wheel shafts are rotatably arranged at two ends of the frame, the transmission belts are matched between the two groups of transmission wheel shafts, the power mechanism drives one group of transmission wheel shafts to rotate, the air blowing pipe is fixedly arranged on the transmission belts, the power mechanism controls the transmission wheel shafts to bidirectionally rotate, and then the air blowing pipe moves back and forth, and passes through the area where the filter is located for multiple times.
3. The self-dedusting ventilating filtering apparatus for intelligent substation according to claim 2, wherein: the vibration mechanism comprises a cam and a boss, the cam is fixedly arranged on the transmission wheel shaft and synchronously rotates along with the transmission wheel shaft, the boss is fixedly arranged on the filter, and the transmission wheel shaft drives the cam to intermittently contact with the boss so as to enable the filter to vibrate.
4. A self-dedusting ventilating filtration apparatus for an intelligent substation according to claim 3, wherein: the cam is provided with a first plane and a first inclined plane, the boss is provided with a second plane and a second inclined plane, when the transmission wheel shaft rotates positively, the first plane is contacted with the second plane, the filter vibrates in parallel to the plane direction of the filter, when the transmission wheel shaft rotates reversely, the first inclined plane is contacted with the second inclined plane, and the filter vibrates in perpendicular to the plane direction of the filter.
5. The self-dedusting, ventilating and filtering device for intelligent substation according to claim 4, wherein: a positioning pin hole is formed in one end of the filter, a positioning pin is arranged at one end of the frame, a spring is sleeved on the positioning pin, the positioning pin is matched with the positioning pin hole, the filter is allowed to vibrate in the direction parallel to the plane direction of the filter, and the spring plays a role in resetting; a spring piece is arranged between the other end of the filter and the other end of the frame, and is compressed when the first inclined surface and the second inclined surface are contacted, and is loosened when the first inclined surface and the second inclined surface are not contacted, so that the filter is allowed to vibrate in a direction perpendicular to the plane direction of the filter.
6. The self-dedusting ventilating filtering apparatus for intelligent substation according to claim 5, wherein: the two ends of the frame are also respectively provided with a first limit micro-switch and a second limit micro-switch, and the first limit micro-switch and the second limit micro-switch are matched to limit the travel range of the reciprocating motion of the air blowing pipe.
7. The self-dedusting, ventilating and filtering device for intelligent substation according to claim 6, wherein: the transmission wheel shaft is a belt pulley shaft, and the transmission belt is a belt.
8. A self-dedusting ventilating filtration apparatus for an intelligent substation according to any of claims 1 to 7, wherein: the frame comprises an outer frame and an inner frame, the shutter is installed on the outer frame, and the filter, the power mechanism, the travelling mechanism, the air blowing pipe and the vibration mechanism are installed on the inner frame.
9. The self-dedusting, ventilating and filtering device for intelligent substation according to claim 8, wherein: the power mechanism comprises a motor and a speed reducer, and the speed reducer controls the speed of the reciprocating motion of the air blowing pipe within a reasonable range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887411.0A CN107492817B (en) | 2017-09-27 | 2017-09-27 | Self-dedusting ventilation filtering device for intelligent substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887411.0A CN107492817B (en) | 2017-09-27 | 2017-09-27 | Self-dedusting ventilation filtering device for intelligent substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107492817A CN107492817A (en) | 2017-12-19 |
| CN107492817B true CN107492817B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710887411.0A Active CN107492817B (en) | 2017-09-27 | 2017-09-27 | Self-dedusting ventilation filtering device for intelligent substation |
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| Country | Link |
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| CN (1) | CN107492817B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952860B (en) * | 2020-08-25 | 2022-05-03 | 云南昆宝电气科技有限公司 | Wireless network intelligent low-voltage electrical control cabinet device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1098807A (en) * | 1996-09-20 | 1998-04-14 | Hitachi Cable Ltd | Outdoor machine housing |
| CN103291204A (en) * | 2013-06-09 | 2013-09-11 | 张家港市鸿钻贸易有限公司 | Screen window |
| CN103411279A (en) * | 2012-08-24 | 2013-11-27 | 南通宁普电器有限公司 | Air purifier capable of automatically removing dust |
| CN204858318U (en) * | 2015-08-04 | 2015-12-09 | 王晶 | Automatic dust removal switch board |
| CN207200085U (en) * | 2017-09-27 | 2018-04-06 | 宁波天安智能电网科技股份有限公司 | A kind of intelligent substation is with from dedusting ventilating filter device |
-
2017
- 2017-09-27 CN CN201710887411.0A patent/CN107492817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1098807A (en) * | 1996-09-20 | 1998-04-14 | Hitachi Cable Ltd | Outdoor machine housing |
| CN103411279A (en) * | 2012-08-24 | 2013-11-27 | 南通宁普电器有限公司 | Air purifier capable of automatically removing dust |
| CN103291204A (en) * | 2013-06-09 | 2013-09-11 | 张家港市鸿钻贸易有限公司 | Screen window |
| CN204858318U (en) * | 2015-08-04 | 2015-12-09 | 王晶 | Automatic dust removal switch board |
| CN207200085U (en) * | 2017-09-27 | 2018-04-06 | 宁波天安智能电网科技股份有限公司 | A kind of intelligent substation is with from dedusting ventilating filter device |
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| Publication number | Publication date |
|---|---|
| CN107492817A (en) | 2017-12-19 |
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Application publication date: 20171219 Assignee: Ningbo Tianzhi Electric Technology Co.,Ltd. Assignor: NINGBO TIANAN SMART GRID TECHNOLOGY CO.,LTD. Contract record no.: X2023980053427 Denomination of invention: A self dust removal ventilation and filtration device for intelligent substations Granted publication date: 20230620 License type: Common License Record date: 20231221 |
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