CN115388043A - Adjustable cooling fan suitable for high power converter - Google Patents
Adjustable cooling fan suitable for high power converter Download PDFInfo
- Publication number
- CN115388043A CN115388043A CN202210975726.1A CN202210975726A CN115388043A CN 115388043 A CN115388043 A CN 115388043A CN 202210975726 A CN202210975726 A CN 202210975726A CN 115388043 A CN115388043 A CN 115388043A
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- CN
- China
- Prior art keywords
- air inlet
- fixedly connected
- wall
- fixed cylinder
- magnetic block
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
Abstract
The invention discloses an adjustable cooling fan suitable for a high-power converter, which comprises a casing, a centrifugal impeller arranged in the casing, a motor which is arranged on the outer wall of the casing and connected with the centrifugal impeller, an air inlet pipe and an air outlet pipe which are fixedly connected with the outer wall of the casing, wherein an air inlet communicated with the inside of the casing is formed in the inner top wall of the air inlet pipe, a fixing cylinder fixedly connected with the air inlet pipe penetrates through the inner top wall of the air inlet pipe, a through hole communicated with the inside of the casing is formed in the top of the fixing cylinder, the lower end of the fixing cylinder penetrates through and is communicated with the inside of the air inlet pipe, and a screen plate is fixedly connected with the inside of the air inlet pipe. When more dust is accumulated on the dust screen, the air inlet resistance is increased, and the air inlet cooling efficiency is reduced, the dust removal operation can be completed on the dust screen through the spontaneous action of the pressure accumulation injection mechanism and the linkage mechanism, the automatic blockage removal is realized, the good air inlet cooling performance can be ensured, and the energy conservation and the environmental protection are realized.
Description
Technical Field
The invention relates to the technical field of cooling fans, in particular to an adjustable cooling fan suitable for a high-power converter.
Background
The converter is the electrical equipment that makes electrical power generating system's voltage, frequency, number of phases and other electric quantities or characteristic change, when the electrical equipment increases, can make the power of converter too high this moment, because the converter can produce high temperature when using, install adjustable cooling blower on the converter usually at present, utilize the air current to take out the high temperature to promote the life of converter, then current cooling blower still has following problem when using:
at present cooling blower is when using, and the dust screen on its air inlet end is long-pending more dust of attaching after using a period easily, and makes the resistance of ventilating increase, and then has influenced the cooling effect of air inlet, is usually cleaned dust removal by the manual work regularly at present, increases the cost and can't realize in time removing dust, influences the use.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an adjustable cooling fan suitable for a high-power converter.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an adjustable cooling fan suitable for high power converter, includes the casing, sets up the centrifugal impeller in the casing, install on the casing outer wall and with motor, the air-supply line, the play tuber pipe of being connected on the casing outer wall of centrifugal impeller, set up the air intake with the inside intercommunication of casing on the roof in the air-supply line, run through on the interior roof of air-supply line and be equipped with rather than fixed connection's solid fixed cylinder, the opening with the inside intercommunication of casing is seted up at solid fixed cylinder's top, gu the lower extreme of solid fixed cylinder link up and with the inside intercommunication of air-supply line, the inside fixedly connected with otter board of air-supply line, the otter board is fixed to be cup jointed on solid fixed cylinder, gu fixed cylinder's inside is equipped with the slide, the upper end of slide is fixed with two flexible gasbags that the symmetry set up, the one end that flexible gasbag kept away from the slide is fixed on solid fixed cylinder's roof, the inside symmetry of air-supply line is equipped with two pressure storage jetting mechanisms that are connected with flexible gasbags and are connected and are to the dustproof net reverse jetting, gu the upper end of fixed cylinder runs through being equipped with the bull stick that is equipped with the rotation connection, the slide, the lower extreme that the solid fixed cylinder runs through the slide extends, be equipped with the movable contact of impeller is equipped with the upper end of brush bar and the movable brush link up with the upper end of brush link of brush.
As a further improvement of the invention, the pressure accumulation injection mechanism comprises a sliding cavity arranged in an air inlet pipe, a connecting pipe is arranged in the air inlet pipe, one end of the connecting pipe penetrates through a fixed cylinder and is communicated with a telescopic air bag, the other end of the connecting pipe is communicated with the inner top wall of the sliding cavity, a permanent magnetic ring is arranged in the sliding cavity and is fixedly connected to the inner wall of the sliding cavity, a sliding plug is connected to the inner wall of the sliding cavity in a sliding manner, the sliding plug is magnetically attracted below the permanent magnetic ring, an injection pipe is fixedly connected to the inner side wall of the air inlet pipe and is communicated with the inside of the sliding cavity, the injection pipe is positioned above a dustproof net, and nozzles are arranged on the injection pipe and face the dustproof net.
As a further improvement of the invention, the linkage mechanism comprises a third magnetic block which is slidably connected in the movable groove, the lower end of the third magnetic block is fixedly connected with a tension spring, one end of the tension spring, which is far away from the third magnetic block, is fixedly connected to the inner bottom wall of the movable groove, the upper end of the third magnetic block is fixedly connected with a movable rod, a planetary reducer is arranged above the movable rod, the input end of the planetary reducer faces upwards and is fixedly connected with a second magnetic block, the output end of the planetary reducer faces downwards and is fixedly connected to the upper end of the movable rod, the tail end of a wheel shaft of the centrifugal impeller is fixedly connected with a first magnetic block which is positioned above the second magnetic block, the first magnetic block and the second magnetic block are opposite in heteropolarity, and the movable rod is fixedly sleeved on the planetary reducer.
As a further improvement of the invention, the lower end of the rotating rod is rotatably sleeved with a rotating sleeve, a telescopic sealing pipe is fixedly sleeved on the rotating sleeve, the telescopic sealing pipe is sleeved on the outer side of the rotating rod, and one end of the telescopic sealing pipe, far away from the rotating sleeve, is fixedly connected to the lower end of the sliding plate.
As a further improvement of the invention, an elastic ring is fixedly connected to the inner bottom wall of the sliding cavity.
As a further improvement of the invention, two guide grooves are symmetrically arranged on the inner wall of the machine shell, and two ends of the moving rod are respectively connected to the inner sides of the two guide grooves in a sliding manner.
As a further improvement of the invention, the inner wall of the lower end of the fixed cylinder is of a conical structure.
The invention has the beneficial effects that:
through setting up the slide, flexible gasbag, accumulate jetting mechanism, after more dust is attached to the lower surface deposit of dust screen, make the resistance to air increase of dust screen, and then make the slide move up the action, and drive accumulate jetting mechanism action, in the jetting pipe, and through the nozzle on the jetting pipe, reverse blowing to the dust screen, effectively blow off dust screen lower surface deposit, make the dust screen resume the efficiency of ventilating again, accomplish automatic deashing, and then guarantee good air inlet cooling effect.
Through setting up the bull stick, the cleaning brush pole, link gear, the slide shifts up the in-process, when the slide moves up to when aliging with the third magnetic path, because effect is inhaled with slide magnetism to third magnetic path, the slide drives the third magnetic path and shifts up, it shifts up to drive the movable rod, when the second magnetic path is close to with first magnetic path, the second magnetic path is inhaled with first magnetic path magnetism, can drive planetary reducer through centrifugal impeller, and then drive the movable rod and rotate, it rotates to drive the bull stick through the movable rod rotation, and then drive the rotation of cleaning brush pole through the bull stick, carry out further dust sweeping to the dust screen, the cooperation blows dirt to the reverse of dust screen, greatly improve the dust removal effect of dust screen, and just drive the rotation of cleaning brush pole when removing dust, and is more energy-concerving and environment-protective.
When more dust is accumulated on the dust screen, the air inlet resistance is increased, and the air inlet cooling efficiency is reduced, the dust removal operation can be completed on the dust screen through the spontaneous action of the pressure accumulation injection mechanism and the linkage mechanism, the automatic blockage removal is realized, the good air inlet cooling performance can be ensured, and the energy conservation and the environmental protection are realized.
Drawings
Fig. 1 is a schematic external perspective view of an adjustable cooling fan suitable for a high-power converter according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of an adjustable cooling fan suitable for a high power converter according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is an enlarged view of FIG. 2 at B;
fig. 5 is a schematic structural diagram of a mesh plate and a dust screen of an adjustable cooling fan suitable for a high-power converter according to the present invention.
In the figure: the device comprises a machine shell 1, a centrifugal impeller 2, a motor 3, an air outlet pipe 4, a machine base 5, an air inlet pipe 6, an air inlet 7, a connecting pipe 8, a sliding cavity 9, a permanent magnetic ring 10, a sliding plug 11, an elastic ring 12, a cleaning brush rod 13, a screen plate 14, a dust screen 15, a blowing pipe 16, a fixed cylinder 17, a sliding plate 18, a guide groove 19, a moving rod 20, a first magnetic block 21, a second magnetic block 22, a planetary reducer 23, a rotating rod 24, a movable groove 25, a movable rod 26, a third magnetic block 27, a tension spring 28, a connecting rod 29, a rotating sleeve 30, a telescopic sealing pipe 31, a through hole 32 and a telescopic air bag 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an adjustable cooling fan suitable for a high-power converter comprises a casing 1, a centrifugal impeller 2 arranged in the casing 1, a motor 3 installed on the outer wall of the casing 1 and connected with the centrifugal impeller 2, an air inlet pipe 6 fixedly connected to the outer wall of the casing 1, and an air outlet pipe 4, wherein an air inlet 7 communicated with the inside of the casing 1 is formed in the inner top wall of the air inlet pipe 6, a fixed cylinder 17 fixedly connected with the air inlet pipe 6 penetrates through the inner top wall of the air inlet pipe 6, the inner wall of the lower end of the fixed cylinder 17 is of a conical structure, a through hole 32 communicated with the inside of the casing 1 is formed in the top of the fixed cylinder 17, the lower end of the fixed cylinder 17 penetrates through and is communicated with the inside of the air inlet pipe 6, a screen plate 14 is fixedly connected with the inside of the air inlet pipe 6, the screen plate 14 is fixedly sleeved on the fixed cylinder 17, a dust screen 15 is fixedly embedded on the screen plate 14, a sliding plate 18 is arranged inside of the fixed cylinder 17, two symmetrically arranged telescopic air bags 33 are fixed at the upper end of the sliding plate 18, a movable rotating rotary rod 24 connected with a dust storage rod 24, and a movable rotary rod 24 is arranged in a rotary rod 24, which the rotary rod 24 is in a rotary mechanism which is arranged.
In the invention, the pressure storage blowing mechanism comprises a sliding cavity 9 arranged in an air inlet pipe 6, a connecting pipe 8 is arranged in the air inlet pipe 6, one end of the connecting pipe 8 penetrates through a fixed cylinder 17 and is communicated with a telescopic air bag 33, the other end of the connecting pipe 8 is communicated with the inner top wall of the sliding cavity 9, a permanent magnetic ring 10 is arranged in the sliding cavity 9, the permanent magnetic ring 10 is fixedly connected to the inner wall of the sliding cavity 9, a sliding plug 11 is slidably connected to the inner wall of the sliding cavity 9, the sliding plug 11 is magnetically attracted below the permanent magnetic ring 10, an elastic ring 12 is fixedly connected to the inner bottom wall of the sliding cavity 9, the sliding plug 11 moves downwards in the sliding cavity 9 to an extreme position and then contacts with the elastic ring 12, the sliding plug 11 can be assisted to move upwards and reset by the aid of the elastic ring 12 and is magnetically attracted again with the permanent magnetic ring 10, a blowing pipe 16 is fixedly connected to the inner side wall of the air inlet pipe 6, the blowing pipe 16 is communicated with the sliding cavity 9, the blowing pipe 16 is positioned above a dust screen 15, and nozzles are arranged on the blowing pipe 16 and face towards the dust screen 15.
The linkage mechanism comprises a third magnetic block 27 which is slidably connected in a movable groove 25, the third magnetic block 27 is of a rectangular structure, the cross section of the movable groove 25 is of a rectangular structure matched with the third magnetic block 27, when the third magnetic block 27 rotates, a rotating rod 24 can be driven to rotate, a tension spring 28 is fixedly connected to the lower end of the third magnetic block 27, one end, far away from the third magnetic block 27, of the tension spring 28 is fixedly connected to the inner bottom wall of the movable groove 25, a movable rod 26 is fixedly connected to the upper end of the third magnetic block 27, a planetary reducer 23 is arranged above the movable rod 26, the input end of the planetary reducer 23 faces upwards and is fixedly connected with a second magnetic block 22, the output end of the planetary reducer 23 faces downwards and is fixedly connected to the upper end of the movable rod 26, a first magnetic block 21 which is positioned above the second magnetic block 22 is fixedly connected to the tail end of a wheel shaft of the centrifugal impeller 2, the first magnetic block 21 and the second magnetic block 22 are opposite in polarity, when the second magnetic block 22 and the first magnetic block 21 and the second magnetic block 22 and the first magnetic block 21 and the second magnetic block 20 and the movable rod 19 and the guide rod 19 and the inner side of the guide groove 19 and the guide bar 19.
The lower extreme of bull stick 24 rotates the cover and is equipped with changes cover 30, changes and realizes rotating the installation through sealed bearing between cover 30 and the bull stick 24, changes the cover 30 and has fixed the cup jointing and has flexible sealed tube 31, and flexible sealed tube 31 cover is established in the bull stick 24 outside, and the one end fixed connection that changes cover 30 is kept away from to flexible sealed tube 31 is at the lower extreme of slide 18.
When the dust-proof net is used, when more dust is accumulated on the lower surface of the dust-proof net 15, the ventilation resistance of the dust-proof net 15 is increased, the negative pressure in the air inlet pipe 6 and the machine shell 1 is increased, the inside of the fixed cylinder 17 is communicated with the inside of the machine shell 1, and the gas tends to enter the machine shell 1 from the lower end of the fixed cylinder 17, so that the gas pushes the sliding plate 18 to move upwards, so as to compress the telescopic air bag 33, the inside of the sliding cavity 9 is communicated with the telescopic air bag 33 through the connecting pipe 8, so that the air pressure of the space above the permanent magnetic ring 10 in the sliding cavity 9 is increased, after the air pressure is increased and breaks through a certain value, the sliding plug 11 breaks through the magnetic attraction force of the permanent magnetic ring 10, the sliding plug 11 rapidly moves downwards in the sliding cavity 9 under the action of high-pressure air flow, when the sliding plug 11 moves to the lower part of the injection pipe 16, the high-pressure air flow in the sliding cavity 9 enters the injection pipe 16, and reversely blows the dust-proof net 15 through the nozzle on the injection pipe 16, so as to effectively blow down the dust accumulated on the lower surface of the dust-proof net 15;
in the process of moving the sliding plate 18 upwards, when the sliding plate 18 moves upwards to be aligned with the third magnetic block 27, due to the magnetic attraction effect between the third magnetic block 27 and the sliding plate 18, the sliding plate 18 drives the third magnetic block 27 to move upwards to drive the movable rod 26 to move upwards, when the second magnetic block 22 is close to the first magnetic block 21, the second magnetic block 22 is magnetically attracted with the first magnetic block 21, the planetary reducer 23 is driven by the centrifugal impeller 2, the movable rod 26 is driven to rotate, the rotating rod 24 is driven to rotate by the rotation of the movable rod 26, the cleaning brush rod 13 is driven to rotate by the rotating rod 24, the dust screen 15 is further cleaned, and the reverse dust blowing to the dust screen 15 is matched, greatly improve the dust removal effect of dust screen 15, make dust screen 15 resume the speed of ventilating, reduce the resistance of ventilating of dust screen 15, inside gas passes through dust screen 15 high-efficient entering air-supply line 6 again, the inside negative pressure value of fixed cylinder 17 reduces, slide 18 moves down and resets, and slide 18 moves down the back that resets, the pulling force effect of extension spring 28 makes third magnetic path 27 move down and resets, drive movable rod 26 and move down and reset, make first magnetic path 21 and second magnetic path 22 separation, stop to drive the rotation of cleaning brush pole 13, and is more energy-concerving and environment-protective, sliding plug 11 receives permanent magnet ring 10 adsorption to move up and resets, accomplishes the deashing once.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. An adjustable cooling fan suitable for a high-power converter comprises a machine shell (1), a centrifugal impeller (2) arranged in the machine shell (1), a motor (3) which is arranged on the outer wall of the machine shell (1) and connected with the centrifugal impeller (2), an air inlet pipe (6) fixedly connected with the outer wall of the machine shell (1) and an air outlet pipe (4), and is characterized in that an air inlet (7) communicated with the interior of the machine shell (1) is formed in the inner top wall of the air inlet pipe (6), a fixed cylinder (17) fixedly connected with the air inlet pipe is arranged on the inner top wall of the air inlet pipe (6) in a penetrating manner, a through hole (32) communicated with the interior of the machine shell (1) is formed in the top of the fixed cylinder (17), the lower extreme of solid fixed cylinder (17) link up and communicate with air-supply line (6) inside, the inside fixedly connected with otter board (14) of air-supply line (6), otter board (14) are fixed cup joints on solid fixed cylinder (17), fixed the inlaying is equipped with dust screen (15) on otter board (14), the inside of solid fixed cylinder (17) is equipped with slide (18), the upper end of slide (18) is fixed with two flexible gasbag (33) that the symmetry set up, the one end that slide (18) were kept away from in flexible gasbag (33) is fixed on the interior roof of solid fixed cylinder (17), the inside symmetry of air-supply line (6) is equipped with two and is connected and to the dust screen (33) with flexible gasbag (33) and (2), (the inside intercommunication of dust screen: (17) 15 The upper end of the fixed cylinder (17) is provided with a rotating rod (24) in a penetrating manner, the rotating rod (24) is rotatably connected with the fixed cylinder, the rotating rod (24) penetrates through the sliding plate (18), the lower end of the rotating rod (24) extends out of the lower end of the fixed cylinder (17) and is fixedly connected with a cleaning brush rod (13) in contact with the dust screen (15), the upper end of the rotating rod (24) is provided with a movable groove (25), and a linkage mechanism corresponding to the centrifugal impeller (2) is arranged in the movable groove (25).
2. The adjustable cooling fan suitable for the high-power converter is characterized in that the pressure accumulation blowing mechanism comprises a sliding cavity (9) arranged inside an air inlet pipe (6), a connecting pipe (8) is arranged inside the air inlet pipe (6), one end of the connecting pipe (8) penetrates through a fixed cylinder (17) and is communicated with a telescopic air bag (33), the other end of the connecting pipe (8) is communicated with the inner top wall of the sliding cavity (9), a permanent magnet ring (10) is arranged inside the sliding cavity (9), the permanent magnet ring (10) is fixedly connected to the inner wall of the sliding cavity (9), the inner wall of the sliding cavity (9) is slidably connected with a sliding plug (11), the sliding plug (11) is magnetically attracted below the permanent magnet ring (10), an injection pipe (16) is fixedly connected to the inner side wall of the air inlet pipe (6), the injection pipe (16) is communicated with the inside of the sliding cavity (9), the injection pipe (16) is positioned above a dustproof net (15), and nozzles are arranged on the injection pipe (16) and face the dustproof net (15).
3. The adjustable cooling fan suitable for the high-power converter is characterized in that the linkage mechanism comprises a third magnetic block (27) which is slidably connected in a movable groove (25), a tension spring (28) is fixedly connected to the lower end of the third magnetic block (27), one end, far away from the third magnetic block (27), of the tension spring (28) is fixedly connected to the inner bottom wall of the movable groove (25), a movable rod (26) is fixedly connected to the upper end of the third magnetic block (27), a planetary reducer (23) is arranged above the movable rod (26), the input end of the planetary reducer (23) faces upwards and is fixedly connected to a second magnetic block (22), the output end of the planetary reducer (23) faces downwards and is fixedly connected to the upper end of the movable rod (26), a first magnetic block (21) which is located above the second magnetic block (22) is fixedly connected to the tail end of a wheel shaft of the centrifugal impeller (2), the first magnetic block (21) is opposite to the second magnetic block (22), and a movable rod (20) is fixedly sleeved on the planetary reducer (23).
4. The adjustable cooling fan suitable for the high-power converter is characterized in that a rotating sleeve (30) is rotatably sleeved at the lower end of the rotating rod (24), a telescopic sealing pipe (31) is fixedly sleeved on the rotating sleeve (30), the telescopic sealing pipe (31) is sleeved at the outer side of the rotating rod (24), and one end, far away from the rotating sleeve (30), of the telescopic sealing pipe (31) is fixedly connected to the lower end of the sliding plate (18).
5. An adjustable cooling fan for high power converters according to claim 2, characterised in that the inner bottom wall of the slide chamber (9) is fixedly connected with an elastic ring (12).
6. The adjustable cooling fan suitable for high power converter according to claim 3, wherein the inner wall of the housing (1) is symmetrically provided with two guide slots (19), and two ends of the moving rod (20) are slidably connected to the inner sides of the two guide slots (19), respectively.
7. The adjustable cooling fan for high power converters as claimed in claim 1, wherein the inner wall of the lower end of the fixed cylinder (17) is of a conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975726.1A CN115388043A (en) | 2022-08-15 | 2022-08-15 | Adjustable cooling fan suitable for high power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975726.1A CN115388043A (en) | 2022-08-15 | 2022-08-15 | Adjustable cooling fan suitable for high power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115388043A true CN115388043A (en) | 2022-11-25 |
Family
ID=84119216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210975726.1A Pending CN115388043A (en) | 2022-08-15 | 2022-08-15 | Adjustable cooling fan suitable for high power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115388043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779596A (en) * | 2023-02-01 | 2023-03-14 | 烟台蜂鸟动物无害化处理有限公司 | Waste gas collecting and treating device |
-
2022
- 2022-08-15 CN CN202210975726.1A patent/CN115388043A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779596A (en) * | 2023-02-01 | 2023-03-14 | 烟台蜂鸟动物无害化处理有限公司 | Waste gas collecting and treating device |
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