CN115111203A - Noise reduction structure and noise reduction method of high-speed centrifugal blower - Google Patents
Noise reduction structure and noise reduction method of high-speed centrifugal blower Download PDFInfo
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- CN115111203A CN115111203A CN202210692362.6A CN202210692362A CN115111203A CN 115111203 A CN115111203 A CN 115111203A CN 202210692362 A CN202210692362 A CN 202210692362A CN 115111203 A CN115111203 A CN 115111203A
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- centrifugal blower
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- 238000000034 method Methods 0.000 title claims description 11
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 229920000742 Cotton Polymers 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 3
- 240000005002 Erythronium dens canis Species 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a noise reduction structure of a high-speed centrifugal blower in the technical field of centrifugal blowers, which comprises a base, wherein strip-shaped plates are symmetrically fixed at the front and the back of the upper end of the base, slots are formed in the strip-shaped plates, the centrifugal blower is arranged above the base, supporting legs are arranged on four sides of the centrifugal blower, a rectangular cover is arranged on the outer side of the centrifugal blower, grooves and rectangular grooves are formed in the front wall and the back wall of the rectangular cover, heat dissipation and sound absorption mechanisms are arranged in the rectangular grooves, supporting plates are symmetrically fixed at the front and the back of the rectangular cover, and clamping and limiting mechanisms are symmetrically arranged on the rectangular cover; the rectangular cover is arranged to enhance the sound insulation, the air is fed in and discharged out through the air inlet and the air outlet, the heat dissipation is carried out through the rectangular groove, the movable rotating plate can be driven to rotate, the heat dissipation is adjusted, the sound absorption cotton is arranged on the movable rotating plate and used for reducing noise, the rectangular cover and the centrifugal blower are fixed in position, the rectangular cover and the centrifugal blower are convenient to disassemble, and the centrifugal blower can be maintained.
Description
Technical Field
The invention relates to the technical field of centrifugal blowers, in particular to a noise reduction structure of a high-speed centrifugal blower and a noise reduction method thereof.
Background
The centrifugal blower is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. According to the principle of converting kinetic energy into potential energy, an impeller rotating at high speed is used for accelerating gas, then the gas is decelerated and the flow direction is changed, so that the kinetic energy is converted into the potential energy. The centrifugal blower is widely applied to water treatment projects such as municipal sewage and industrial wastewater, and industries and departments such as metallurgy, chemical industry, aquaculture, pneumatic conveying and mine flotation, and is used for conveying air or other non-toxic and non-corrosive gases. It can also be used for ventilation and draught of boilers and industrial kilns, cooling and ventilation in air conditioning equipment and household electrical appliances, and drying and sorting of grains; wind tunnel wind source and air cushion boat inflation and propulsion.
The centrifugal fan during operation can produce the noise, and the noise is a great pollution, brings great influence to workman and resident on every side, consequently need to design one kind to the centrifugal fan and fall the structure of making an uproar, and the traditional structural fixation of falling an uproar can realize falling the protection of making an uproar, but the heat dissipation of not being convenient for, the dismantlement maintenance of not being convenient for.
Therefore, it is desirable to design a noise reduction structure of a high-speed centrifugal blower and a noise reduction method thereof.
Disclosure of Invention
The invention aims to provide a noise reduction structure of a high-speed centrifugal blower and a noise reduction method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a structure of making an uproar falls in high-speed centrifugal blower, includes the base, the symmetry is fixed with the bar shaped plate around the upper end of base, the slot has been seted up on the bar shaped plate, the top of base is provided with centrifugal blower, four sides of centrifugal blower all are provided with the stabilizer blade, be connected with the air-supply line on the centrifugal blower and go out the tuber pipe, the outside of centrifugal blower is provided with the rectangle cover, the air-supply line all runs through the rectangle cover with going out the tuber pipe and outwards extending, the preceding back wall of rectangle cover all is seted up flutedly, the rectangular channel, be provided with the heat dissipation in the rectangular channel and inhale the sound mechanism, the symmetry is fixed with the backup pad around the rectangle cover, the symmetry is provided with centre gripping stop gear on the rectangle cover.
Further, among the structure of making an uproar falls in above-mentioned high-speed centrifugal blower, the sound mechanism is inhaled in the heat dissipation includes that a plurality of activities change board, minor axis, rotation motor and inhale the sound cotton, the activity changes the board and sets up in the rectangular channel, the top of activity commentaries on classics board is fixed with the minor axis, the top of minor axis is run through and is extended into the recess, the output shaft of minor axis) and rotation motor, it installs in the recess to rotate the motor.
Further, among the structure of making an uproar falls in above-mentioned high-speed centrifugal blower, centre gripping stop gear includes screw rod, U-shaped frame, picture peg, connecting axle, positioning gear and clamping bar, the screw rod rotates to set up and covers in the rectangle, the outside cover of screw rod is equipped with the U-shaped frame, the both ends of U-shaped frame are all run through the rectangle cover and are down extended inwards, the inner symmetry of side lever of U-shaped frame is fixed with a plurality of dogtooths, the side lever left and right sides of U-shaped frame all is provided with positioning gear, the grafting is fixed with the connecting axle on the positioning gear, the bottom of connecting axle is rotated and is set up in the backup pad, the top of connecting axle is fixed with the clamping bar, the rear end lower part of U-shaped frame is fixed with the picture peg.
Further, in the noise reduction structure of the high-speed centrifugal blower, an air inlet is formed in the left side of the air inlet pipe, and an air outlet is formed in the right side of the air outlet pipe.
Furthermore, in the noise reduction structure of the high-speed centrifugal blower, the air inlet pipe and the air outlet pipe are in sliding contact with the top plate of the rectangular cover.
Furthermore, in the noise reduction structure of the high-speed centrifugal blower, the inserting plate is clamped with the inserting groove.
Furthermore, in the noise reduction structure of the high-speed centrifugal blower, a shock pad is arranged at the bottom end of the base.
A noise reduction method of a noise reduction structure of a high-speed centrifugal blower is characterized by comprising the following steps:
s1: when the centrifugal blower works, the rectangular cover is arranged to enhance the sound insulation, air is fed in and discharged out through the air inlet and the air outlet, and heat dissipation is carried out through the rectangular groove;
s2: the rotating motor is started to drive the short shaft to rotate, the movable rotating plate is driven to rotate to adjust heat dissipation, and sound absorption cotton is arranged on the movable rotating plate and used for reducing noise;
s3: the manual adjusting screw rod rotates to adjust the position of the U-shaped frame to move backwards, so that the positioning gears on the two sides can be driven to rotate, and the supporting legs are clamped and fixed by the clamping rods on the two sides; when the U-shaped frame is adjusted to move backwards, the plug board can be driven to move backwards, so that the plug board is moved into the slot to be clamped with the slot, and the positions of the rectangular cover and the centrifugal blower are fixed.
Compared with the prior art, the invention has the beneficial effects that:
1. the rectangular cover is arranged to enhance the sound insulation, air is fed in and discharged out through the air inlet and the air outlet, and heat dissipation is carried out through the rectangular groove; can drive the activity and change the board and rotate, adjust the heat dissipation, and the activity is provided with on changeing the board and inhales the sound cotton for it makes an uproar to fall.
2. According to the invention, the corresponding support legs are clamped and fixed by adjusting the clamping rods on the two sides, and when the U-shaped frame is adjusted to move backwards, the position of the plug board can be driven to move backwards, so that the plug board is moved into the slot to be clamped with the slot, the positions of the rectangular cover and the centrifugal blower are fixed, the rectangular cover is convenient to disassemble, and the centrifugal blower can be maintained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the distribution structure of the clamping and limiting mechanism of the present invention;
FIG. 4 is a schematic structural view of a clamping and limiting mechanism according to the present invention;
FIG. 5 is a schematic view of a partial structure of a strip of the present invention;
in the drawings, the reference numbers indicate the following list of parts:
1-base, 2-rectangular cover, 3-centrifugal blower, 4-support leg, 5-air outlet pipe, 6-air outlet, 7-air inlet pipe, 8-air inlet, 9-rectangular groove, 10-heat dissipation and sound absorption mechanism, 101-movable rotating plate, 102-short shaft, 104-rotating motor, 105-sound absorption cotton, 11-groove, 13-strip plate, 14-slot, 15-clamping and limiting mechanism, 151-screw rod, 152-U-shaped frame, 153-inserting plate, 154-connecting shaft, 155-positioning gear, 156-clamping rod and 16-supporting plate.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: a noise reduction structure of a high-speed centrifugal blower comprises a base 1, strip-shaped plates 13 are symmetrically fixed on the front and back of the upper end of the base 1, slots 14 are formed in the strip-shaped plates 13, a centrifugal blower 3 is arranged above the base 1, supporting legs 4 are arranged on four sides of the centrifugal blower 3, an air inlet pipe 7 and an air outlet pipe 5 are connected to the centrifugal blower 3, an air inlet 8 is formed in the left side of the air inlet pipe 7, an air outlet 6 is formed in the right side of the air outlet pipe 5, the air inlet pipe 7 and the air outlet pipe 5 are in sliding contact with a top plate of a rectangular cover 2, the rectangular cover 2 is arranged on the outer side of the centrifugal blower 3, the air inlet pipe 7 and the air outlet pipe 5 extend outwards through the rectangular cover 2, grooves 11 are formed in the front wall and the back wall of the rectangular cover 2, rectangular channel 9 is provided with the heat dissipation in the rectangular channel 9 and inhales sound mechanism 10, and the symmetry is fixed with backup pad 16 around the rectangle cover 2, and the symmetry is provided with centre gripping stop gear 15 on the rectangle cover 2. The bottom end of the base 1 is provided with a shock pad.
Example two
Based on the noise reduction structure and the noise reduction method of the high-speed centrifugal blower provided by the first embodiment of the application, the second embodiment of the application provides another noise reduction structure and a noise reduction method of the high-speed centrifugal blower. The second embodiment is only a further mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following embodiments.
Compared with the first embodiment, the specific heat dissipation and sound absorption mechanism 10 provided in this embodiment includes a plurality of movable rotating plates 101, a short shaft 102, a rotating motor 104 and sound absorption cotton 105, the movable rotating plates 101 are disposed in the rectangular groove 9, the short shaft 102 is fixed to the top end of the movable rotating plates 101, the top end of the short shaft 102 extends into the groove 11, the top end of the short shaft 102 is connected to an output shaft of the rotating motor 104, and the rotating motor 104 is mounted in the groove 11.
EXAMPLE III
Based on the noise reduction structure and the noise reduction method of the high-speed centrifugal blower provided by the first embodiment of the application, the third embodiment of the application provides another noise reduction structure and a noise reduction method of the high-speed centrifugal blower. The third embodiment is only a further mode of the first embodiment, and the implementation of the third embodiment does not affect the single implementation of the first embodiment.
The third embodiment of the present invention is further described below with reference to the drawings and the following embodiments.
Compared with the first embodiment, the present embodiment provides a specific clamping limiting mechanism 15, which includes a screw 151, a U-shaped frame 152, an insertion plate 153, a connecting shaft 154, a positioning gear 155 and a clamping bar 156, the screw 151 is rotatably disposed on the rectangular cover 2, the U-shaped frame 152 is sleeved outside the screw 151, two ends of the U-shaped frame 152 all penetrate through the rectangular cover 2 and extend inwards, a plurality of protruding teeth are symmetrically fixed at inner ends of side bars of the U-shaped frame 152, the positioning gear 155 is disposed on each of left and right sides of the side bars of the U-shaped frame 152, the connecting shaft 154 is fixedly inserted into the positioning gear 155, the bottom end of the connecting shaft 154 is rotatably disposed on the supporting plate 16, the clamping bar 156 is fixed at the top end of the connecting shaft 154, the insertion plate 153 is fixed at the lower portion of the rear end of the U-shaped frame 152, and the insertion plate 153 is connected with the insertion slot 14.
The working principle is as follows: when the centrifugal blower 3 works, the rectangular cover 2 is arranged to enhance the sound insulation, air is fed and discharged through the air inlet 8 and the air outlet 6, and heat is dissipated through the rectangular groove 9; the rotating motor 104 is started to drive the short shaft 102 to rotate, the movable rotating plate 101 is driven to rotate to adjust heat dissipation, and sound absorption cotton 105 is arranged on the movable rotating plate 101 and used for reducing noise; the manual adjusting screw 151 rotates to adjust the position of the U-shaped frame 152 to move backwards, so that the positioning gears 155 on the two sides can be driven to rotate, and the support legs 4 are clamped and fixed by the clamping rods 156 on the two sides; when the U-shaped frame 152 is adjusted to move backwards, the inserting plate 153 can be driven to move backwards, so that the inserting plate 153 can move into the inserting groove 14 to be clamped with the inserting groove, the fixing of the positions of the rectangular cover 2 and the centrifugal blower 3 is realized, the rectangular cover is convenient to disassemble, and the centrifugal blower can be maintained.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a structure of making an uproar falls in high-speed centrifugal blower, includes base (1), its characterized in that: strip-shaped plates (13) are symmetrically fixed at the front and the back of the upper end of the base (1), slots (14) are arranged on the strip-shaped plates (13), a centrifugal blower (3) is arranged above the base (1), supporting legs (4) are arranged on four sides of the centrifugal blower (3), the centrifugal blower (3) is connected with an air inlet pipe (7) and an air outlet pipe (5), a rectangular cover (2) is arranged on the outer side of the centrifugal blower (3), the air inlet pipe (7) and the air outlet pipe (5) both penetrate through the rectangular cover (2) and extend outwards, the front wall and the rear wall of the rectangular cover (2) are respectively provided with a groove (11) and a rectangular groove (9), a heat dissipation and sound absorption mechanism (10) is arranged in the rectangular groove (9), supporting plates (16) are symmetrically fixed at the front and the back of the rectangular cover (2), and the rectangular cover (2) is symmetrically provided with clamping and limiting mechanisms (15).
2. The noise reducing structure of a high-speed centrifugal blower according to claim 1, wherein: heat dissipation sound absorption mechanism (10) include that a plurality of activities are changeed board (101), minor axis (102), rotate motor (104) and inhale sound cotton (105), activity commentaries on classics board (101) sets up in rectangular channel (9), the top of activity commentaries on classics board (101) is fixed with minor axis (102), the top of minor axis (102) is run through and is extended into recess (11), the top of minor axis (102) and the output shaft who rotates motor (104), it installs in recess (11) to rotate motor (104).
3. The noise reducing structure of a high-speed centrifugal blower according to claim 1, wherein: centre gripping stop gear (15) include screw rod (151), U-shaped frame (152), picture peg (153), connecting axle (154), positioning gear (155) and clamping bar (156), screw rod (151) rotate to set up on rectangle cover (2), the outside cover of screw rod (151) is equipped with U-shaped frame (152), rectangle cover (2) toward interior extension is all run through at the both ends of U-shaped frame (152), the inner symmetry of side lever of U-shaped frame (152) is fixed with a plurality of dogtooths, the side lever left and right sides of U-shaped frame (152) all is provided with positioning gear (155), it is fixed with picture peg (154) to peg graft on positioning gear (155), the bottom of connecting axle (154) is rotated and is set up on connecting axle (16), the top of connecting axle (154) is fixed with clamping bar (156), the rear end lower part of U-shaped frame (152) is fixed with picture peg (153).
4. The noise reducing structure of a high-speed centrifugal blower according to claim 1, wherein: an air inlet (8) is formed in the left side of the air inlet pipe (7), and an air outlet (6) is formed in the right side of the air outlet pipe (5).
5. The noise reducing structure of a high-speed centrifugal blower according to claim 1, wherein: the air inlet pipe (7) and the air outlet pipe (5) are in sliding contact with the top plate of the rectangular cover (2).
6. A high speed centrifugal blower noise reduction structure according to claim 3, wherein: the plug board (153) is clamped with the slot (14).
7. The noise reducing structure of a high-speed centrifugal blower according to claim 1, wherein: the bottom end of the base (1) is provided with a shock pad.
8. The noise reduction method of the noise reduction structure of the high-speed centrifugal blower according to claim 1, characterized by comprising the following steps:
s1: when the centrifugal blower (3) works, the rectangular cover (2) is arranged to enhance the sound insulation, air is fed and discharged through the air inlet (8) and the air outlet (6), and heat is dissipated through the rectangular groove (9);
s2: the rotating motor (104) is started to drive the short shaft (102) to rotate, the movable rotating plate (101) is driven to rotate, heat dissipation is adjusted, and sound absorption cotton (105) is arranged on the movable rotating plate (101) and used for reducing noise;
s3: the manual adjusting screw rod (151) rotates to adjust the position of the U-shaped frame (152) to move backwards, so that the positioning gears (155) on the two sides can be driven to rotate, and the support legs (4) are clamped and fixed by the clamping rods (156) on the two sides; when the U-shaped frame (152) is adjusted to move backwards, the inserting plate (153) can be driven to move backwards, so that the inserting plate (153) can move into the inserting groove (14) to be clamped with the inserting groove, and the positions of the rectangular cover (2) and the centrifugal blower (3) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210692362.6A CN115111203B (en) | 2022-06-17 | 2022-06-17 | Noise reduction structure and noise reduction method for high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210692362.6A CN115111203B (en) | 2022-06-17 | 2022-06-17 | Noise reduction structure and noise reduction method for high-speed centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115111203A true CN115111203A (en) | 2022-09-27 |
| CN115111203B CN115111203B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210692362.6A Active CN115111203B (en) | 2022-06-17 | 2022-06-17 | Noise reduction structure and noise reduction method for high-speed centrifugal blower |
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| CN (1) | CN115111203B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200377618Y1 (en) * | 2004-12-20 | 2005-03-14 | 신한건설산업(주) | Silencer of ventilation for noise economy |
| CN210240081U (en) * | 2019-05-27 | 2020-04-03 | 浙江树人学院（浙江树人大学） | Combined support frame for peripheral pump of robot |
| CN211230995U (en) * | 2019-11-27 | 2020-08-11 | 南通普瑞特透平科技有限公司 | Magnetic suspension high-speed centrifugal blower |
| CN214660961U (en) * | 2021-01-22 | 2021-11-09 | 广州市圣南通风设备有限公司 | Cabinet type centrifugal fan |
| CN215980016U (en) * | 2021-09-06 | 2022-03-08 | 山东兴恒环境科技集团有限公司 | Long service life's type of making an uproar centrifugal fan falls |
| CN216342866U (en) * | 2021-09-14 | 2022-04-19 | 云南丰煌工程有限公司 | Underground water taking device for engineering investigation drilling |
| CN216381913U (en) * | 2021-09-10 | 2022-04-26 | 宿州市尚泰电子科技有限公司 | Brushless direct current blower |
-
2022
- 2022-06-17 CN CN202210692362.6A patent/CN115111203B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200377618Y1 (en) * | 2004-12-20 | 2005-03-14 | 신한건설산업(주) | Silencer of ventilation for noise economy |
| CN210240081U (en) * | 2019-05-27 | 2020-04-03 | 浙江树人学院（浙江树人大学） | Combined support frame for peripheral pump of robot |
| CN211230995U (en) * | 2019-11-27 | 2020-08-11 | 南通普瑞特透平科技有限公司 | Magnetic suspension high-speed centrifugal blower |
| CN214660961U (en) * | 2021-01-22 | 2021-11-09 | 广州市圣南通风设备有限公司 | Cabinet type centrifugal fan |
| CN215980016U (en) * | 2021-09-06 | 2022-03-08 | 山东兴恒环境科技集团有限公司 | Long service life's type of making an uproar centrifugal fan falls |
| CN216381913U (en) * | 2021-09-10 | 2022-04-26 | 宿州市尚泰电子科技有限公司 | Brushless direct current blower |
| CN216342866U (en) * | 2021-09-14 | 2022-04-19 | 云南丰煌工程有限公司 | Underground water taking device for engineering investigation drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115111203B (en) | 2024-05-31 |
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