CN111677676A - Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan - Google Patents
Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan Download PDFInfo
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- CN111677676A CN111677676A CN202010563690.7A CN202010563690A CN111677676A CN 111677676 A CN111677676 A CN 111677676A CN 202010563690 A CN202010563690 A CN 202010563690A CN 111677676 A CN111677676 A CN 111677676A
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- Prior art keywords
- cabinet
- centrifugal fan
- impeller
- mounting
- fighting
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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
- 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
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
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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
- F04D29/70—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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M3/00—Portable or wheeled frames or beds, e.g. for emergency power-supply aggregates, compressor sets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan. Including installing cabinet, support column, gyro wheel, installing frame and spiral case, the welding of installing frame undersurface has a plurality of support columns, and the gyro wheel is installed through the bolt in a plurality of support column bottoms, and the welding of installing cabinet upper surface has the installing frame, and the installing cabinet is the cavity structure, and installing cabinet internally mounted has the spiral case. According to the invention, through the porous sound insulation plate and the silencing pad structure, noise generated when the impeller rotates and noise generated due to vibration when the motor operates are reduced, noise pollution to the periphery is improved, and the applicability of the device is improved; through the structure of the dust cover, the spray head and the dust collection box, dust can be reduced from entering the volute to avoid dust accumulation, and the dust cover is convenient to clean and treat dirt; through adjusting device, the elasticity of track is adjusted to the angle that can adjust the motor slope, makes things convenient for the dismantlement and the change of track, has promoted operating personnel's work efficiency, simultaneously through the pulley structure, makes things convenient for the removal and the transport of equipment.
Description
Technical Field
The invention belongs to the technical field of centrifugal fans, and particularly relates to a low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan.
Background
The cabinet type dual-purpose centrifugal fan has the advantages of excellent high temperature resistance, compact structure, neat appearance, convenient installation and use and the like, so the cabinet type dual-purpose centrifugal fan is widely applied to places such as industry, civil buildings, basements and the like, and the structure of the cabinet type dual-purpose centrifugal fan usually comprises a machine shell, a fan, a motor and the like; the cabinet type dual-purpose centrifugal fan is a machine which can raise gas pressure and discharge gas by means of input mechanical energy, and is a driven fluid machine. The cabinet type dual-purpose centrifugal fan is mainly used for smoke extraction in industrial production environment or air supply and ventilation in buildings according to the structure type. With the development of fan technology, higher requirements are put on the pneumatic efficiency, the configuration efficiency and the electric energy consumption of the fan.
The impeller is set up in the spiral case generally to the cabinet type dual-purpose centrifugal fan among the prior art, spiral case bottom fixed stay frame, the spiral case is outer to have not fallen the equipment of making an uproar for its noise is big, simultaneously for reducing the inside dust of entering fan, generally all be provided with dust keeper, and the condition of inconvenient clearance mostly exists to the dust keeper who has now, and the transmission that most cabinet type dual-purpose fan adopted all is fixed connection, when operating time is of a specified duration too, transmission appears damaging, inconvenient dismantlement installation.
Disclosure of Invention
The invention aims to provide a low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan, which reduces the noise generated when an impeller rotates and the noise generated by vibration when a motor operates through a porous sound insulation plate and a sound-absorbing pad structure, improves the noise pollution to the periphery and improves the applicability of the device; through the structure of the dust cover, the spray head and the dust collection box, dust can be reduced from entering the volute to avoid dust accumulation, and the dust cover is convenient to clean and treat dirt; the adjusting device can adjust the inclination angle of the motor to adjust the tightness of the crawler belt, so that the crawler belt can be conveniently detached and replaced, the working efficiency of operators is improved, and meanwhile, the equipment can be conveniently moved and carried through the pulley structure; the problems of large noise, dust accumulation and inconvenient replacement of a transmission device in the prior art are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan which comprises an installation cabinet, support columns, rollers, an installation frame and a volute, wherein the support columns are welded on the lower surface of the installation frame, the rollers are installed at the bottom ends of the support columns through bolts, the installation frame is welded on the upper surface of the installation cabinet, the installation cabinet is of a cavity structure, and the volute is installed inside the installation cabinet.
Preferably, an air outlet and a buckle seat are arranged on one surface of the installation cabinet, a fixed frame is welded on the outer side of the air outlet, first sliding grooves are formed in two opposite surfaces in the fixed frame, a strip-shaped opening is formed in the upper surface of the fixed frame, a door body is arranged in the strip-shaped opening and is convenient for preventing dust from entering during daily storage, the door body is lifted upwards during working, the door body is in sliding fit with the first sliding grooves, a handle and a buckle block are arranged on one surface of the door body, a buckle rod is arranged on one surface of the buckle seat and can circumferentially move around the buckle seat as a circle center, the buckle rod is matched with the buckle block, an air inlet is formed in the other surface of the installation cabinet, an installation table is welded above the air inlet, a second sliding groove is formed below the air inlet, and a dust cover is fixed on the outer side, dust is prevented from entering the volute, a water pipe is arranged in the mounting table, a plurality of spray heads are arranged on the lower surface of the mounting table, one ends of the spray heads are communicated with the interior of the water pipe, dust accumulated on the dust cover can be conveniently cleaned, and the working efficiency is improved; a dust collecting box is arranged below the dust cover, so that sewage flowing down from the dust on the dust cover can be collected and cleaned conveniently; a sliding block is welded on one surface of the dust collection box and is in sliding fit with the second sliding groove; the sewage in the dust collecting box can be conveniently cleaned, and the porous sound insulation plates are welded on the peripheral side surfaces in the installation cabinet, so that the noise generated during the operation of the impeller is reduced.
Preferably, a rotating shaft rod is installed on one side inside the installation frame, a motor fixing plate is sleeved on the peripheral side of the rotating shaft rod, a motor is installed on the upper surface of the motor fixing plate, a silencing pad is installed between the motor and the motor fixing plate, noise generated by vibration when the motor works is reduced, adjusting devices are installed on two sides of the motor fixing plate, and the other end of each adjusting device is connected with one side of the installation frame; first transmission shaft is installed to motor one end, the welding of first transmission shaft one end has the action wheel.
Preferably, the spiral case is of a cavity structure, mounting racks are welded on two sides of the spiral case, the bottom end of each mounting rack is welded on the upper surface inside the mounting cabinet, a cross rod is installed between two support rods of the mounting racks, bearing seats are installed on the upper surfaces of the two cross rods, air inlet holes are formed in two sides of the spiral case, impellers are arranged inside the spiral case, a plurality of blades are installed on the peripheral side of each impeller, a second transmission shaft is installed between the two bearing seats, the impeller sleeves are embedded on the peripheral side of the second transmission shaft to provide power for rotation of the impellers, a through hole is formed in one side of the mounting cabinet, the position of the through hole is matched with the second transmission shaft, one end of the second transmission shaft penetrates through one side of the mounting cabinet through the through hole, one end of the second transmission shaft is welded, thereby driving the driven wheel to rotate.
Preferably, the gyro wheel is the universal wheel, the piece of stopping is installed to gyro wheel one side, the gyro wheel with stop the piece and cooperate, make things convenient for equipment to remove and carry.
Preferably, adjusting device includes the turning block, rotates the swivel nut, adjusts the pole and rotates the regulating spindle, the turning block in proper order with rotate the swivel nut, adjust the pole and rotate the regulating spindle and be connected, thereby rotate regulating spindle and run through installing frame one side, thereby can adjust the elasticity of motor inclination regulation track, the dismantlement and the installation of the track of being convenient for.
Preferably, the impeller is a forward impeller, the cross section of the blade of the impeller is arc-shaped, and the bending direction of the blade is the same as the rotation direction of the impeller.
The invention has the following beneficial effects:
1. the invention reduces the noise generated by the rotation of the impeller and the vibration of the motor during operation by the porous sound insulation board and the sound-deadening pad structure, improves the noise pollution to the periphery and improves the applicability of the device.
2. According to the invention, through the structure of the dust cover, the spray head and the dust collection box, dust can be reduced from entering the volute to avoid dust accumulation, and the dust cover is convenient to clean and treat dirt.
3. According to the invention, the inclination angle of the motor can be adjusted through the adjusting device to adjust the tightness of the crawler belt, so that the crawler belt is convenient to disassemble and replace, and the working efficiency of operators is improved.
4. The invention is convenient for moving and carrying the equipment through the pulley structure.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
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 structural view of a low-noise fire-fighting and ventilation cabinet type centrifugal fan according to the present invention;
FIG. 2 is a schematic rear view of the low-noise fire-fighting and ventilation cabinet type centrifugal fan according to the present invention;
FIG. 3 is a schematic diagram of a right-view structure of a low-noise fire-fighting and ventilation cabinet type centrifugal fan according to the present invention;
FIG. 4 is a schematic view of the construction of the volute and the mounting bracket of the present invention;
FIG. 5 is a schematic view of the internal structure of the volute and mounting cabinet of the present invention;
fig. 6 is a schematic structural diagram of the adjusting device of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. installing a cabinet; 2. a support pillar; 201. a roller; 3. installing a frame; 4. a motor fixing plate; 5. a motor; 6. a spindle rod; 7. an adjustment device; 701. rotating the block; 702. rotating the threaded sleeve; 703. adjusting a rod; 704. rotating the adjusting shaft; 8. a first drive shaft; 9. a second drive shaft; 10. a driving wheel; 11. a driven wheel; 12. a crawler belt; 13. a sound-deadening pad; 14. a porous acoustical panel; 15. a fixing frame; 16. a first chute; 17. a door body; 18. a handle; 19. a buckling block; 20. a buckle rod; 21. a buckle seat; 22. an air outlet; 23. an air inlet; 24. an air inlet hole; 25. an installation table; 26. a water pipe; 27. a spray head; 28. a dust cover; 29. a dust collecting box; 30. a second chute; 31. a slider; 32. a volute; 33. a mounting frame; 3301. a cross bar; 34. a bearing seat; 35. an impeller; 3501. a blade; 36. and a through hole.
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.
The first embodiment is as follows:
referring to fig. 1-5, the invention relates to a low-noise fire-fighting and ventilation cabinet type centrifugal fan, which comprises an installation cabinet 1, support columns 2, rollers 201, an installation frame 3 and a volute 32, wherein the support columns 2 are welded on the lower surface of the installation frame, the rollers 201 are installed at the bottom ends of the support columns 2 through bolts, the installation frame 3 is welded on the upper surface of the installation cabinet 1, the installation cabinet 1 is of a cavity structure, and the volute 32 is installed inside the installation cabinet 1.
An air outlet 22 and a buckle seat 21 are arranged on one surface of the mounting cabinet 1, a fixing frame 15 is welded on the outer side of the air outlet 22, first sliding grooves 16 are arranged on two opposite surfaces inside the fixing frame 15, a strip-shaped opening is arranged on the upper surface of the fixing frame 15, a door body 17 is arranged inside the strip-shaped opening, so that dust can be prevented from entering the fixing frame in daily storage, the door body 17 is lifted upwards in work, the door body 17 is in sliding fit with the first sliding grooves 16, a handle 18 and a buckle block 19 are arranged on one surface of the door body 17, a buckle rod 20 is arranged on one surface of the buckle seat 21, the buckle rod 20 can do circular motion by taking the buckle seat 21 as the circle center, the buckle rod 20 is matched with the buckle block 19, an air inlet 23 is arranged on the other surface of the mounting cabinet 1, a mounting platform 25 is welded on the upper side of the air inlet, dust is prevented from entering the volute 32, the water pipe 26 is arranged inside the mounting table 25, the lower surface of the mounting table 25 is provided with the plurality of spray heads 27, one ends 27 of the spray heads are communicated with the inside of the water pipe 26, dust accumulated on the dust cover 28 can be conveniently cleaned, and the working efficiency is improved; a dust collecting box 29 is arranged below the dust cover 28, so that sewage flowing down from the dust on the dust cover 28 can be collected and cleaned conveniently; a sliding block 31 is welded on one surface of the dust collection box 29, and the sliding block 31 is in sliding fit with the second sliding chute 30; the inside sewage of dust-collecting box 29 is convenient for clear up, and the inside all sides of week of installation cabinet 1 all welds porous acoustic celotex board 14, reduces the noise that impeller 35 during operation produced.
A rotating shaft rod 6 is arranged on one side inside the mounting frame 3, a motor fixing plate 4 is sleeved on the peripheral side of the rotating shaft rod 6, a motor 5 is arranged on the upper surface of the motor fixing plate 4, a silencing pad 13 is arranged between the motor 5 and the motor fixing plate 4, noise generated by vibration when the motor 5 works is reduced, adjusting devices 7 are arranged on two sides of the motor fixing plate 4, and the other end of each adjusting device 7 is connected with one side of the mounting frame 3; first transmission shaft 8 is installed to motor 5 one end, and 8 one ends welding of first transmission shaft have action wheel 10.
The volute casing 32 is of a cavity structure, mounting frames 33 are welded on two sides of the volute casing 32, the bottom ends of the mounting frames 33 are welded on the upper surface inside the mounting cabinet 1, cross rods 3301 are mounted between two support rods of the mounting frames 33, bearing seats 34 are mounted on the upper surface of the two cross rods 3301, air inlet holes 24 are formed in two sides of the volute casing 32, an impeller 35 is arranged inside the volute casing 32, a plurality of blades 3501 are mounted on the peripheral surface of the impeller 35, a second transmission shaft 9 is mounted between the two bearing seats 34, the impeller 35 is sleeved on the peripheral surface of the second transmission shaft 9 and provides power for rotation of the impeller 35, a through hole 36 is formed in one side of the mounting cabinet 1, the position of the through hole 36 is matched with the second transmission shaft 9, one end of the second transmission shaft 9 penetrates through one side of the mounting cabinet 1 through the through hole 36, a driven, thereby rotating the driven pulley 11.
The gyro wheel 201 is the universal wheel, and the piece of stopping is installed to gyro wheel 201 one side, and gyro wheel 201 and the piece of stopping cooperate, make things convenient for equipment to remove and carry.
The adjusting device 7 comprises a rotating block 701, a rotating threaded sleeve 702, an adjusting rod 703 and a rotating adjusting shaft 704, the rotating block 701 is sequentially connected with the rotating threaded sleeve 702, the adjusting rod 703 and the rotating adjusting shaft 704, and the rotating adjusting shaft 704 penetrates through one side of the mounting frame 3 and can adjust the inclination angle of the motor 5 to adjust the tightness of the crawler 12, so that the crawler 12 can be conveniently detached and mounted.
The impeller 35 is a forward type impeller, and the blades 3501 of the impeller 35 have an arc-shaped cross section, and the bending direction of the blades 3501 is the same as the rotation direction of the impeller 35.
The second embodiment is as follows:
referring to fig. 1-5, the present invention is a low noise fire-fighting and ventilating cabinet type centrifugal fan, preferably, the model of the motor 5 is FH22, and the working principle and the using method thereof are as follows: the motor 5 is controlled to operate, and the driving wheel 10 is driven by the first transmission shaft 8, so that the crawler 12 is driven to operate; the caterpillar band 12 drives the driven wheel 11 to rotate, so as to drive the second transmission shaft 9 to rotate, and the second transmission shaft 9 provides power for the rotation of the impeller 35; dust entering can effectively be avoided to the dust cover 28 that air intake 23 department set up, and the shower nozzle 27 and the dust-collecting box 29 of below above the air intake 23 conveniently clear up the dust that piles up on the dust cover 28, collect the sewage that flows down after the clearance, through a body 17 structure, put down a body 17 when equipment is deposited, avoid the dust to get into from air outlet 22, during operation with a body 17 upwards carry draw can, through the gyro wheel 201 structure, make things convenient for the removal and the transport of equipment.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
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 (7)
1. The utility model provides a low noise fire control ventilation dual-purpose cabinet type centrifugal fan, includes installation cabinet (1), support column (2), gyro wheel (201), installing frame (3) and spiral case (32), its characterized in that: the mounting frame lower surface welding has a plurality of support columns (2), gyro wheel (201) are installed through the bolt to a plurality of support columns (2) bottom, surface welding has mounting frame (3) on installation cabinet (1), installation cabinet (1) is the cavity structure, installation cabinet (1) internally mounted has spiral case (32).
2. The low-noise fire-fighting and ventilation cabinet type centrifugal fan as claimed in claim 1, wherein an air outlet (22) and a fastening seat (21) are arranged on one surface of the installation cabinet (1), a fixed frame (15) is welded on the outer side of the air outlet (22), first sliding grooves (16) are arranged on two opposite surfaces inside the fixed frame (15), a strip-shaped opening is arranged on the upper surface of the fixed frame (15), a door body (17) is arranged inside the strip-shaped opening, the door body (17) is in sliding fit with the first sliding grooves (16), a handle (18) and a fastening block (19) are arranged on one surface of the door body (17), a fastening rod (20) is arranged on one surface of the fastening seat (21), the fastening rod (20) is matched with the fastening block (19), an air inlet (23) is arranged on the other surface of the installation cabinet (1), an installation platform (25) is welded above the air inlet (23), a second sliding groove (30) is formed below the air inlet (23), a dust cover (28) is fixed on the outer side of the air inlet (23) through bolts, a water pipe (26) is arranged inside the mounting table (25), a plurality of spray heads (27) are mounted on the lower surface of the mounting table (25), one ends (27) of the spray heads are communicated with the inside of the water pipe (26), a dust collection box (29) is arranged below the dust cover (28), a sliding block (31) is welded on one surface of the dust collection box (29), and the sliding block (31) is in sliding fit with the second sliding groove (30); porous sound insulation plates (14) are welded on the peripheral side surfaces inside the installation cabinet (1).
3. The low-noise fire-fighting and ventilation cabinet type centrifugal fan is characterized in that a rotating shaft rod (6) is installed on one side inside a mounting frame (3), a motor fixing plate (4) is sleeved on the peripheral side of the rotating shaft rod (6), a motor (5) is installed on the upper surface of the motor fixing plate (4), a silencing pad (13) is installed between the motor (5) and the motor fixing plate (4), adjusting devices (7) are installed on two sides of the motor fixing plate (4), and the other end of each adjusting device (7) is connected with one side of the mounting frame (3); first transmission shaft (8) are installed to motor (5) one end, the welding of first transmission shaft (8) one end has action wheel (10).
4. The low-noise fire-fighting and ventilation cabinet type centrifugal fan as claimed in claim 1, wherein the volute (32) is of a cavity structure, mounting brackets (33) are welded on two sides of the volute (32), the bottom end of each mounting bracket (33) is welded on the upper surface inside the mounting cabinet (1), a cross bar (3301) is installed between two support bars of the mounting brackets (33), bearing seats (34) are installed on the upper surfaces of the two cross bars (3301), air inlet holes (24) are formed in two sides of the volute (32), an impeller (35) is arranged inside the volute (32), a plurality of blades (3501) are installed on the peripheral side surface of the impeller (35), a second transmission shaft (9) is installed between the two bearing seats (34), the impeller (35) is nested on the peripheral side surface of the second transmission shaft (9), and a through hole (36) is formed in one side of the mounting cabinet (1), the position of through-hole (36) suits with second transmission shaft (9), second transmission shaft (9) one end is passed through-hole (36) and is installed cabinet (1) one side, the welding of second transmission shaft (9) one end has from driving wheel (11), it is linked together through track (12) with action wheel (10) from driving wheel (11).
5. The low-noise fire-fighting and ventilation cabinet type centrifugal fan as claimed in claim 1, wherein the roller (201) is a universal wheel, a brake sheet is mounted on one side of the roller (201), and the roller (201) is matched with the brake sheet.
6. The cabinet type centrifugal fan with low noise, fire fighting and ventilation functions as claimed in claim 3, wherein the adjusting device (7) comprises a rotating block (701), a rotating threaded sleeve (702), an adjusting rod (703) and a rotating adjusting shaft (704), the rotating block (701) is sequentially connected with the rotating threaded sleeve (702), the adjusting rod (703) and the rotating adjusting shaft (704), and the rotating adjusting shaft (704) penetrates through one side of the mounting frame (3).
7. The cabinet type centrifugal fan for low noise fire fighting and ventilation according to claim 4, wherein the impeller (35) is a forward impeller, the section of the blade (3501) of the impeller (35) is arc-shaped, and the bending direction of the blade (3501) is the same as the rotation direction of the impeller (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563690.7A CN111677676A (en) | 2020-06-19 | 2020-06-19 | Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563690.7A CN111677676A (en) | 2020-06-19 | 2020-06-19 | Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan |
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| CN111677676A true CN111677676A (en) | 2020-09-18 |
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| CN202010563690.7A Pending CN111677676A (en) | 2020-06-19 | 2020-06-19 | Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114499029A (en) * | 2021-12-20 | 2022-05-13 | 江苏航天动力机电有限公司 | Permanent magnet motor with water cooling and angle adjusting device |
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| US20160105996A1 (en) * | 2013-05-22 | 2016-04-14 | Stego-Holding Gmbh | Fan holder for a fan, in particular of a switch cabinet |
| CN204921493U (en) * | 2015-09-12 | 2015-12-30 | 林志宏 | Electric fan filters with environmental protection in cotton textile mill |
| CN206753941U (en) * | 2017-01-19 | 2017-12-15 | 东莞市铨达环保通风设备有限公司 | A kind of centrifugal laboratory hood of low noise |
| CN109139569A (en) * | 2017-06-16 | 2019-01-04 | 淄博华源矿业有限公司 | Ventilation blower protective net |
| CN207437395U (en) * | 2017-09-19 | 2018-06-01 | 温州市凯邦汽车部件制造有限公司 | A kind of air blower |
| CN208900420U (en) * | 2018-09-21 | 2019-05-24 | 中山纳新机电科技有限公司 | A kind of new and effective centrifugal fan of cabinet type |
| CN209510736U (en) * | 2019-01-25 | 2019-10-18 | 福建省众源环保科技有限公司 | A kind of environment-friendly type exhaust blower |
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| CN114499029A (en) * | 2021-12-20 | 2022-05-13 | 江苏航天动力机电有限公司 | Permanent magnet motor with water cooling and angle adjusting device |
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