CN111151548B - Instrument dustproof device for engineering cost - Google Patents
Instrument dustproof device for engineering cost Download PDFInfo
- Publication number
- CN111151548B CN111151548B CN202010159494.3A CN202010159494A CN111151548B CN 111151548 B CN111151548 B CN 111151548B CN 202010159494 A CN202010159494 A CN 202010159494A CN 111151548 B CN111151548 B CN 111151548B
- Authority
- CN
- China
- Prior art keywords
- dust
- electrostatic
- static
- net
- dustproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/80—Cleaning the electrodes by gas or solid particle blasting
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention discloses an instrument dustproof device for engineering cost, which is a dustproof device for adsorbing dust through an inner electrostatic dustproof net and an outer electrostatic dustproof net which are sleeved inside and outside, blowing air into a ventilation cavity between the inner electrostatic dustproof net and the outer electrostatic dustproof net, and blowing away and removing the adsorbed dust through flowing air flow.
Description
Technical Field
The invention discloses a dustproof device for an instrument of engineering cost, relates to a device for preventing dust of the instrument of the engineering cost, and belongs to the field of engineering cost. In particular to a dustproof device which adsorbs dust through an inner static dustproof net and an outer static dustproof net which are sleeved inside and outside, blows air into a ventilation cavity between the inner static dustproof net and the outer static dustproof net and blows away and removes the adsorbed dust through flowing air flow.
Background
Engineering cost instrument need carry out good dustproof processing because the instrument and meter spare that belongs to accurate class uses or preserves, in order to avoid job site's dust to get into and deposit inside the instrument, cause the influence to the work precision of instrument, and traditionally in order to guarantee the dust keeper of instrument normal work, it often adopts the mode of electrostatic adsorption to carry out dustproof processing, nevertheless the dust is difficult to easily clear away after being adsorbed on the electrostatic net, lead to adsorbing dust overstock on the net, thereby influence normal dustproof effect, current electrostatic dust screen can be bloied with this dust of solving on the electrostatic dust screen through setting up the fan in net one side and pile up the problem, but because the fan can only design in dust screen one side, lead to dust screen opposite side dust cleaning effect not good.
Notice No. CN208842929U discloses instrument dust keeper for engineering cost, including the dust proof box, dust proof box inner wall right side bottom fixedly connected with battery, battery left side fixedly connected with fan bracket, fan bracket inner chamber is connected with the heat dissipation dust exhaust fan, heat dissipation dust exhaust fan top fixedly connected with static dust collection piece, dust proof box bottom central authorities fixed surface is connected with buffer spring, buffer spring top fixedly connected with blotter, bolt fixedly connected with grid fence is passed through at the blotter top, grid fence left side fixedly connected with debris receiver, this dust keeper pass through radiator fan and clear up the dust on the static dust collection piece, but its fan can only clear up one side that the piece of collecting dust is close to the fan, and its clearance is thorough inadequately.
Publication No. CN207343399U discloses an instrument dustproof device for engineering cost, which comprises a dust collection box, a dust collection head and an exhaust fan, wherein the exhaust fan is arranged in the dust collection box, and an air inlet of the exhaust fan is communicated with the dust collection head; the dust collection box is characterized by further comprising a partition plate, wherein one end of the partition plate is hinged with the side wall of the dust collection box, and the partition plate divides the dust collection box into a dust collection area and a dust collection area; the dedusting area is provided with rows of electrostatic dedusting plates, the exhaust fan is arranged on the side wall of the dedusting area, and the side wall of the dedusting area on the opposite side of the exhaust fan is provided with an air outlet; be equipped with the cylinder in the dust collection district, cylinder output shaft free end is articulated with the baffle, is equipped with out the dirt mouth on the lateral wall in dust collection district, and it is equipped with sealing door to go out dirt mouth department, and the device is through getting rid of the electric current on the electrostatic precipitator board, and the rethread dust dead weight of eliminating static falls into bottom collection dirt region, but because the dust is tiny, relies on the efficiency of its self gravity landing too low, and it is clean to hardly clear away the dust on the electrostatic precipitator board.
Disclosure of Invention
In order to improve the situation, the instrument dustproof device for the engineering cost is provided with the dustproof device which adsorbs dust through the inner static dustproof net and the outer static dustproof net which are sleeved inside and outside, blows air into the ventilation cavity between the inner static dustproof net and the outer static dustproof net and blows away the adsorbed dust through flowing air flow to remove the adsorbed dust.
The invention relates to a dustproof device of an instrument for engineering cost, which is realized by the following steps: the invention relates to an instrument dustproof device for engineering cost, which consists of a first electrostatic generator, a fixed frame, a second electrostatic generator, an air inlet pipe, an outer electrostatic dustproof net, a branch pipe, a connecting pipe, an air outlet pipe, dustproof grooves, an inner electrostatic dustproof net and a ventilation cavity, wherein a plurality of inner electrostatic dustproof nets are arranged in the fixed frame, the fixed frame is of a rectangular frame structure, the corners of the fixed frame are arc surfaces, the inner electrostatic dustproof net is a cylindrical net, two ends of the inner electrostatic dustproof net are respectively connected with two inner side surfaces of the fixed frame, two outer electrostatic dustproof nets are arranged in the fixed frame, the two outer electrostatic dustproof nets are symmetrically positioned at two sides of the plurality of inner electrostatic dustproof nets, the outer edges of the outer electrostatic dustproof nets are connected with the fixed frame, a plurality of arc-shaped grooves are arranged on the outer electrostatic dustproof nets, and the arc-shaped grooves on the two outer electrostatic dustproof nets correspondingly form net sleeves, the net cover is arranged on the inner static dust-proof net, a ventilation cavity is arranged between the inner static dust-proof net and the net cover, the ventilation cavities are mutually communicated, the first static generator is arranged on the fixing frame, the first static generator is connected with the outer static dust-proof net through a power line, the second static generator is arranged on the fixing frame, the second static generator is connected with the inner static dust-proof net through a power line, the air inlet pipe is positioned at one side of the fixing frame and is connected with the fixing frame through a plurality of branch pipes, the branch pipes on the air inlet pipe are communicated with the plurality of inner static dust-proof nets in a one-to-one correspondence manner, the dust-proof groove is positioned at the other side of the fixing frame and is connected with the fixing frame through a plurality of branch pipes, the branch pipes on the dust-proof groove are communicated with the plurality of inner static dust-proof nets in a one-to-one correspondence manner, the air outlet pipe is arranged at the bottom of the dust-proof groove and is communicated with the dust-proof groove, the top end of the air inlet pipe is provided with an air inlet hole which is a horn hole, the bottom end of the air outlet pipe is provided with an air outlet hole which is a horn hole; the dust-proof groove is formed by splicing two half shells, a sealing gasket is arranged at the splicing position, and a buckle is arranged on the fixing frame.
Has the beneficial effects.
Firstly, the two sides of the electrostatic adsorption net can be dedusted, and the dust can be cleaned more thoroughly.
And secondly, dust on the electrostatic net can be treated while dust prevention is ensured to be uninterrupted, so that accumulation of dust on the electrostatic adsorption net is avoided.
Thirdly, dustproof effectual, can satisfy the long-time dustproof use repeatedly.
Drawings
Fig. 1 is a perspective view of a dustproof apparatus for meters for construction costs according to the present invention.
Fig. 2 is a schematic structural view of a meter dustproof device for construction cost according to the present invention.
Fig. 3 is a schematic structural view of an internal and external electrostatic dust screen of a meter dust-proof device for construction cost.
In the attached drawings
Wherein the method comprises the following steps: the device comprises a first static generator (1), a fixing frame (2), a second static generator (3), an air inlet pipe (4), an outer static dust screen (5), a branch pipe (6), a connecting pipe (7), an air outlet pipe (8), a dust-proof groove (9), an inner static dust screen (10) and a ventilation cavity (11).
The specific implementation mode is as follows:
the invention relates to a dustproof device of an instrument for engineering cost, which is realized by the following steps: the invention relates to an instrument dustproof device for engineering cost, which consists of a first electrostatic generator (1), a fixed frame (2), a second electrostatic generator (3), an air inlet pipe (4), an outer electrostatic dustproof net (5), a branch pipe (6), a connecting pipe (7), an air outlet pipe (8), a dustproof groove (9), an inner electrostatic dustproof net (10) and a ventilation cavity (11), wherein a plurality of inner electrostatic dustproof nets (10) are arranged in the fixed frame (2), the fixed frame (2) is of a rectangular frame structure, the corners of the fixed frame (2) are arc surfaces, the inner electrostatic dustproof net (10) is a cylindrical net, two ends of each inner electrostatic dustproof net (10) are respectively connected with the two inner side surfaces of the fixed frame (2), two outer electrostatic dustproof nets (5) are arranged in the fixed frame (2), the two outer electrostatic dustproof nets (5) are symmetrically positioned at two sides of the inner electrostatic dustproof nets (10), the outer edge of the outer static dust screen (5) is connected with the fixing frame (2), a plurality of arc-shaped grooves are arranged on the outer static dust screen (5), the arc-shaped grooves on the two outer static dust screens (5) correspond to form a net cover, the net cover is arranged on the inner static dust screen (10), a ventilation cavity (11) is arranged between the inner static dust screen (10) and the net cover, the ventilation cavities (11) are communicated with each other, the first static generator (1) is arranged on the fixing frame (2), the first static generator (1) is connected with the outer static dust screen (5) through a power line, the second static generator (3) is arranged on the fixing frame (2), the second static generator (3) is connected with the inner static dust screen (10) through a power line, the air inlet pipe (4) is arranged on one side of the fixing frame (2), the air inlet pipe (4) is connected with the fixing frame (2) through a plurality of branch pipes (6), the branch pipes (6) on the air inlet pipe (4) are communicated with the plurality of internal static dust screens (10) in a one-to-one correspondence manner, the dust-proof groove (9) is positioned at the other side of the fixing frame (2), the dust-proof groove (9) is connected with the fixing frame (2) through the plurality of branch pipes (6), the branch pipes (6) on the dust-proof groove (9) are communicated with the plurality of internal static dust screens (10) in a one-to-one correspondence manner, the air outlet pipe (8) is arranged at the bottom of the dust-proof groove (9) and communicated with the dust-proof groove (9), an air inlet is arranged at the top end of the air inlet pipe (4), the air inlet is a horn hole, an air outlet is arranged at the bottom end of the air outlet pipe (8), and the air outlet is a horn hole; the dust-proof device is characterized in that the fixing frame (2) is provided with a plurality of mounting holes, the dust-proof groove (9) is formed by splicing two half shells, a sealing gasket is arranged at the splicing position, and the fixing frame (2) is provided with a buckle.
When the device is used, a person firstly places the device at an engineering cost instrument, the air inlet pipe (4) is communicated with an external air inlet device, the air outlet pipe (8) is communicated with an external air exhaust device, then the first electrostatic generator (1) is started, the first electrostatic generator (1) carries out current transmission on the external electrostatic dustproof net (5), so that the first electrostatic generator (1) generates static electricity, dust adsorption is carried out on air passing through two side surfaces of the fixing frame (2), after certain dust is adsorbed, the person starts the second electrostatic generator (3), the second electrostatic generator (3) energizes the internal electrostatic dustproof net (10), the first electrostatic generator (1) is closed simultaneously, so that the dust on the external electrostatic dustproof net (5) is transferred and adsorbed onto the internal electrostatic dustproof net (10), then the external air inlet device and the external air exhaust device are opened, and air is blown through the air inlet pipe (4), meanwhile, the air outlet pipe (8) is matched for air extraction, so that airflow flow is formed in the ventilation cavity (11) between the inner electrostatic dust screen (10) and the outer electrostatic dust screen (5), dust adsorbed by the inner electrostatic dust screen (10) is sucked into the dust-proof groove (9), the two sides of the dust screen are cleaned, the dust is thoroughly removed, the cleaning efficiency is high, and the use and the operation are simple and convenient; the fixing frame (2) is of a rectangular frame structure, and the corners of the fixing frame (2) are designed to be arc surfaces, so that the arc surfaces are not easy to cause collision injuries to personnel; the top end of the air inlet pipe (4) is provided with an air inlet hole, the air inlet hole is designed as a horn hole, and the opening part is larger, so that air can enter conveniently;
the bottom end of the air outlet pipe (8) is provided with an air outlet hole, the air outlet hole is in a horn hole design, and the outlet is large, so that the air can flow out conveniently; the fixing frame (2) is provided with a plurality of mounting holes, and the fixing frame (2) can be mounted through the mounting holes in cooperation with screws; the dustproof groove (9) is formed by splicing two half shells, and a sealing gasket is arranged at the splicing position, so that the dustproof groove (9) can be opened to clean dust in the dustproof groove; the design that the buckle is arranged on the fixing frame (2) can install the fixing frame (2) through the buckle, so that the installation is more convenient;
the design that the ventilation cavity (11) is arranged between the inner static dust screen (10) and the screen sleeve can enable air flow to pass through, and the inner static dust screen (5) and the outer static dust screen (5) are blown by the flowing of the air flow, so that the cleaning effect is good;
the outer static dust screen (5) and the inner static dust screen (10) are matched with the design of the air inlet pipe (4), so that airflow flowing can be formed in the ventilation cavity (11) between the inner static dust screen (10) and the outer static dust screen (5), dust on the inner static dust screen (5) and the dust on the outer static dust screen (5) are blown away by the flowing airflow for cleaning, and the cleaning effect is better;
the design that the first electrostatic generator (1) is firstly turned on, then the second electrostatic generator (3) is turned on, and the first electrostatic generator (1) is turned off simultaneously can firstly adsorb dust through the outer electrostatic dust screen (5), and then the dust on the first electrostatic generator is transferred to the inner electrostatic protection screen for adsorption, so that the whole process ensures that dust prevention is not interrupted; after the second electrostatic generator (3) is opened, the design of the external air extracting device and the external air inlet device is opened, so that airflow flow can be formed in the ventilation cavity (11) between the internal electrostatic net and the external electrostatic net, and adsorbed dust is blown away by the flowing airflow, so that the cleaning effect is better and more thorough;
the purposes that the dust is adsorbed by the inner electrostatic dust screen (10) and the outer electrostatic dust screen (5) which are sleeved inside and outside, and the adsorbed dust is blown away and removed by flowing air flow through blowing air to the ventilation cavity between the inner electrostatic dust screen and the outer electrostatic dust screen (5) are achieved.
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (6)
1. The utility model provides an instrument dust keeper for engineering cost comprises first electrostatic generator, mount, second electrostatic generator, intake pipe, outer static dust screen, branch pipe, connecting pipe, outlet duct, dust-proof groove, interior static dust screen and the chamber of ventilating, characterized by: the multiple inner static dust screens are arranged in the fixing frame, two ends of each inner static dust screen are respectively connected with two inner side surfaces of the fixing frame, two outer static dust screens are arranged in the fixing frame, the two outer static dust screens are symmetrically arranged on two sides of the multiple inner static dust screens, the outer edges of the outer static dust screens are connected with the fixing frame, the outer static dust screens are provided with multiple arc-shaped grooves, the arc-shaped grooves on the two outer static dust screens correspond to form net sleeves, the net sleeves are arranged on the inner static dust screens, the inner static dust screens are cylindrical nets, ventilation cavities are arranged between the inner static dust screens and the net sleeves and are mutually communicated, a first static generator is arranged on the fixing frame and is connected with the outer static dust screens through a power line, a second static generator is arranged on the fixing frame and is connected with the inner static dust screens through a power line, the intake pipe is located one side of mount, the intake pipe is connected through a plurality of branch pipes and mount, branch pipe and a plurality of interior static dust screen one-to-one intercommunication in the intake pipe, the dust prevention groove is located the mount opposite side, the dust prevention groove is connected through a plurality of branch pipes and mount, branch pipe and a plurality of interior static dust screen one-to-one intercommunication on the dust prevention groove, dust prevention tank bottom portion is arranged in to the outlet duct, and is linked together with the dust prevention groove, the dust prevention groove is formed by two half shell concatenations, and the concatenation position has put sealed the pad, can open the dust prevention groove, clears up its inside dust, the mount overhead has the buckle.
2. The instrument dustproof device for engineering cost according to claim 1, wherein in use, the first electrostatic generator is turned on, then the second electrostatic generator is turned on, and the first electrostatic generator is turned off, so that dust can be adsorbed through the outer electrostatic dustproof net, and then the dust on the outer electrostatic dustproof net is transferred to the inner electrostatic protective net for adsorption, and the whole process ensures that the dustproof is not interrupted; after the second electrostatic generator is opened, the design of the external air exhaust device and the external air inlet device is opened, so that airflow flowing in the ventilation cavity between the internal electrostatic net and the external electrostatic net can be formed, and adsorbed dust can be blown away by flowing airflow.
3. The instrument dust-proof device for construction cost according to claim 1 or 2, wherein the outer electrostatic dust-proof mesh and the inner electrostatic dust-proof mesh are fitted with an air inlet pipe, which can form a flow of air flow in the ventilation chamber between the inner electrostatic dust-proof mesh and the outer electrostatic dust-proof mesh, and dust on the inner electrostatic dust-proof mesh and the outer electrostatic dust-proof mesh is blown away by the flowing air flow for cleaning.
4. The instrumentation dust keeper of claim 1, wherein the mounting bracket is a rectangular frame structure and the corners of the mounting bracket are rounded.
5. The instrumentation dust keeper of claim 1, wherein said mounting bracket has a plurality of mounting holes.
6. The instrument dustproof device for engineering cost according to claim 1, wherein the top end of the air inlet pipe is provided with an air inlet hole, the air inlet hole is a horn hole, the bottom end of the air outlet pipe is provided with an air outlet hole, and the air outlet hole is a horn hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159494.3A CN111151548B (en) | 2020-03-10 | 2020-03-10 | Instrument dustproof device for engineering cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159494.3A CN111151548B (en) | 2020-03-10 | 2020-03-10 | Instrument dustproof device for engineering cost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111151548A CN111151548A (en) | 2020-05-15 |
| CN111151548B true CN111151548B (en) | 2022-02-15 |
Family
ID=70567399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159494.3A Active CN111151548B (en) | 2020-03-10 | 2020-03-10 | Instrument dustproof device for engineering cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111151548B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011000496A (en) * | 2009-06-16 | 2011-01-06 | Hitachi Plant Technologies Ltd | Oil mist removing apparatus and method |
| CN207343399U (en) * | 2017-10-20 | 2018-05-11 | 重庆工程职业技术学院 | A kind of project cost instrument dust guard |
| CN208842929U (en) * | 2018-10-17 | 2019-05-10 | 聂壮 | A kind of project cost instrument dust guard |
| CN210115295U (en) * | 2019-04-22 | 2020-02-28 | 张钺 | Instrument dust keeper for engineering cost |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8978187B2 (en) * | 2013-03-15 | 2015-03-17 | Lighting Science Group Corporation | System for electrostatic removal of debris and associated methods |
-
2020
- 2020-03-10 CN CN202010159494.3A patent/CN111151548B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011000496A (en) * | 2009-06-16 | 2011-01-06 | Hitachi Plant Technologies Ltd | Oil mist removing apparatus and method |
| CN207343399U (en) * | 2017-10-20 | 2018-05-11 | 重庆工程职业技术学院 | A kind of project cost instrument dust guard |
| CN208842929U (en) * | 2018-10-17 | 2019-05-10 | 聂壮 | A kind of project cost instrument dust guard |
| CN210115295U (en) * | 2019-04-22 | 2020-02-28 | 张钺 | Instrument dust keeper for engineering cost |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111151548A (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206593279U (en) | A kind of computer room air intake dust guard | |
| CN108687048A (en) | A kind of instrument and meter dust exhaust apparatus | |
| CN111151548B (en) | Instrument dustproof device for engineering cost | |
| CN210251569U (en) | Bag-type dust collector convenient for dust exhaust | |
| CN207839565U (en) | A kind of cleaner | |
| CN110883013A (en) | Cleaning mechanism for cooling net of computer | |
| CN207614536U (en) | A kind of air filter for 3D printer | |
| CN206755396U (en) | A kind of fresh air purifier | |
| CN216481405U (en) | Board room ventilation unit of easy clearance | |
| CN207329839U (en) | Cement car loading operation ventilating dust-arrester | |
| CN212017260U (en) | Overhead source cigarette collecting and filtering device | |
| CN210195898U (en) | Air inlet system of power system and engineering machinery | |
| CN207520764U (en) | Pollutant flow-path module | |
| CN209900882U (en) | Air purification device for doors and windows | |
| CN208208471U (en) | A kind of box type transformer of energy dedusting | |
| CN206488412U (en) | A kind of embedded new blower fan | |
| CN208671193U (en) | A kind of outdoor machine of air-conditioner of good dustproof effect | |
| CN205627379U (en) | Environmental protection fast dust removal device | |
| CN213032063U (en) | Dust purification device | |
| CN206824310U (en) | A kind of intelligent environment protection dust arrester | |
| CN205287888U (en) | Wall -hanging weldingsmoke purifier | |
| CN215465182U (en) | Device for electrochemically treating fly ash | |
| CN204648537U (en) | A kind of vehicle-mounted new blower fan | |
| CN113834157B (en) | Dust-proof ventilation filter device for railway track engineering | |
| CN214075734U (en) | Dust collector for casting shop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |