CN113107886A - Self-cleaning formula fire control smoke exhaust fan - Google Patents

Self-cleaning formula fire control smoke exhaust fan Download PDF

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Publication number
CN113107886A
CN113107886A CN202110385404.7A CN202110385404A CN113107886A CN 113107886 A CN113107886 A CN 113107886A CN 202110385404 A CN202110385404 A CN 202110385404A CN 113107886 A CN113107886 A CN 113107886A
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CN
China
Prior art keywords
inner shell
water tank
shell
fan blade
self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110385404.7A
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Chinese (zh)
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CN113107886B (en
Inventor
夏志刚
胡德良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaoxing Shangyu Dingxin Ventilation Equipment Co ltd
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Shaoxing Shangyu Dingxin Ventilation Equipment Co ltd
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Application filed by Shaoxing Shangyu Dingxin Ventilation Equipment Co ltd filed Critical Shaoxing Shangyu Dingxin Ventilation Equipment Co ltd
Priority to CN202110385404.7A priority Critical patent/CN113107886B/en
Publication of CN113107886A publication Critical patent/CN113107886A/en
Application granted granted Critical
Publication of CN113107886B publication Critical patent/CN113107886B/en
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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
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • 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
    • F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
    • 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
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a self-cleaning fire-fighting smoke exhaust fan, and belongs to the technical field of fire-fighting smoke exhaust fans. The utility model provides a self-cleaning formula fire control fan of discharging fume, which comprises an outer shell, the inner shell support column, the inner shell, fixed foot, actuating mechanism and heat dissipation mechanism, the shell is hollow cylinder, the quantity of inner shell support column is four, four inner shell support columns are cyclic annular even fixed connection in shell inner wall, every inner shell support column is equipped with the strengthening rib with the inner shell junction, can reduce the shake noise reduction when fan operation, rotatory ring is equipped with the sealing ring No. one with the return bend junction, the motor protective housing is equipped with the sealing ring No. two with fan blade hub connection department, can prevent that water from spilling influences the motor operation, fan blade axle and flabellum tight pulley junction fixedly connected with spacing ring, spacing ring and fan blade axle fixed connection, can prevent that guiding gutter and a water tank dislocation from leading.

Description

Self-cleaning formula fire control smoke exhaust fan
Technical Field
The invention relates to the technical field of fire-fighting smoke exhaust fans, in particular to a self-cleaning fire-fighting smoke exhaust fan.
Background
The fire-fighting smoke exhaust fan is a device installed in high-rise buildings, underground buildings and tunnels, is used for ventilation at ordinary times, can exhaust smoke to reduce personal and property loss when a fire disaster occurs, and can continuously operate for more than 30 minutes at a high temperature of 280 ℃.
The flabellum is adhered to by impurity such as dust, oil smoke easily when current fire control smoke exhaust fan is moving, probably leads to flabellum weight distribution inhomogeneous to make the smoke exhaust efficiency of fan reduce, influence flabellum steady operation, need artifical clearance flabellum regularly, it is very troublesome.
Disclosure of Invention
1. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A self-cleaning fire-fighting smoke exhaust fan comprises an outer shell, inner shell supporting columns, an inner shell, fixing pins, a driving mechanism and a heat dissipation mechanism.
The shell is hollow cylinder, and the quantity of inner shell support column is four, and four inner shell support columns are cyclic annular even fixed connection in the shell inner wall, and in the shell was located to the inner shell, the one end fixed connection that the shell was kept away from to four inner shell support columns was on inner shell outer wall right side, and shell and the coaxial setting of inner shell, the quantity of fixed foot was two, two fixed foot bilateral symmetry fixed connection in shell bottom.
The driving mechanism and the heat dissipation mechanism are arranged in the shell.
Further, actuating mechanism includes the flabellum, the flabellum tight pulley, the motor protection shell, motor and flabellum axle, motor protection shell fixed connection is on inner shell left side inner wall, the motor is located in the motor protection shell, flabellum axle fixed connection is in the motor output, flabellum tight pulley fixed connection keeps away from the one end of motor in the flabellum axle, the quantity of motor is a plurality of, the even fixed connection of a plurality of motors in flabellum tight pulley outer wall, the coaxial setting of shell, flabellum tight pulley and flabellum axle.
Further, heat dissipation mechanism includes the drain pipe, the bracing piece, the inlet tube, No. two water tanks and clean subassembly, the inlet tube is located in the inner shell support column that is located the inner shell below, inlet tube upper end and inner shell intercommunication, the one end connection outside water source of inner shell is kept away from to the inlet tube, No. two water tanks cup joint in the flabellum epaxially, drain pipe lower extreme fixed connection is in No. two water tank outer walls, and drain pipe and No. two water tank intercommunication, the one end fixed connection in inner shell left side wall of No. two water tanks is kept away from to the drain pipe, and drain pipe and inner shell intercommunication, bracing piece fixed connection is between No. two water tank outer.
Further, clean subassembly includes the guiding gutter, rotatory ring, return bend and water tank No. one, the quantity of return bend is a plurality of, the even fixed connection of a plurality of return bends is in No. two water tank left ends, and return bend and No. two water tank intercommunications, the one end fixed connection that No. two water tanks were kept away from to a plurality of return bends is on rotatory ring, rotatory ring sliding connection is in the water tank No. one, and return bend and water tank intercommunication No. one, a water tank fixed connection is in the flabellum tight pulley inner wall, the quantity of guiding gutter is the twice of the quantity of flabellum, be equipped with a guiding gutter around every flabellum respectively, and guiding gutter and a water.
Furthermore, two guiding gutters on the front side and the rear side of each fan blade are arranged in a staggered mode, and the situation that the structural strength of the fan blades is reduced due to the fact that the fan blades are locally too thin can be prevented.
Furthermore, every inner shell support column is equipped with the strengthening rib with the inner shell junction, can reduce the shake noise reduction when the fan operation.
Further, the inner shell is embedded insulation material's double-deck plate structure, can maintain the temperature stability in the inner shell when ambient temperature is too high.
Furthermore, the connection position of the rotating ring and the bent pipe is provided with a first sealing ring, and the connection position of the motor protective shell and the fan blade shaft is provided with a second sealing ring, so that the influence on the operation of the motor caused by water leakage can be prevented.
Furthermore, the limiting ring is fixedly connected with the joint of the fan blade shaft and the fan blade fixing wheel, and the limiting ring is fixedly connected with the fan blade shaft, so that the diversion trench and the first water tank can be prevented from being staggered to cause unsmooth water flow.
2. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) every inner shell support column and inner shell junction of this scheme are equipped with the strengthening rib, and the shake noise reduction when can reducing the fan operation.
(2) The inner shell of this scheme is embedded insulation material's double-deck plate structure, can maintain the temperature stability in the inner shell when ambient temperature is too high.
(3) The rotatory ring of this scheme is equipped with the sealing ring No. one with the return bend junction, and the motor protective housing is equipped with the sealing ring No. two with flabellum hub connection department, can prevent that water from spilling influences the motor operation.
(4) The fan blade shaft and fan blade fixed wheel junction fixedly connected with spacing ring of this scheme, spacing ring and fan blade shaft fixed connection can prevent that guiding gutter and a water tank dislocation from leading to rivers not smooth.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view illustrating a first embodiment of the present invention;
FIG. 3 is a partially enlarged view of FIG. 2;
FIG. 4 is a schematic right-view structural diagram according to a first embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 2;
fig. 6 is a schematic cross-sectional structure diagram of the second embodiment and the third embodiment of the present invention.
The reference numbers in the figures illustrate:
10. a housing; 11. a fan blade; 12. an inner shell support post; 13. a diversion trench; 14. a fan blade fixing wheel; 15. reinforcing ribs; 16. a drain pipe; 17. a motor protection shell; 18. a motor; 19. an inner shell; 20. a fan blade shaft; 21. a support bar; 22. a water inlet pipe; 23. a fixing leg; 24. a rotating ring; 25. bending the pipe; 26. a first water tank; 27. a second water tank; 28. a first sealing ring; 29. a second sealing ring; 30. a limit ring.
Detailed Description
The first embodiment is as follows:
referring to fig. 1-5, a self-cleaning fire-fighting smoke exhaust fan includes an outer casing 10, inner casing support columns 12, an inner casing 19, fixing pins 23, a driving mechanism and a heat dissipation mechanism.
Outer shell 10 is hollow cylinder, and the quantity of inner shell support column 12 is four, and four inner shell support columns 12 are cyclic annular even fixed connection in outer shell 10 inner wall, and in outer shell 10 was located to inner shell 19, the one end fixed connection that outer shell 10 was kept away from to four inner shell support columns 12 was on 19 outer wall right sides of inner shell, and outer shell 10 and the coaxial setting of inner shell 19, the quantity of fixed foot 23 was two, two fixed 23 bilateral symmetry fixed connection in the outer shell 10 bottom of foot.
Both the driving mechanism and the heat dissipating mechanism are provided in the housing 10.
Actuating mechanism includes flabellum 11, flabellum fixed wheel 14, motor protective housing 17, motor 18 and fan blade axle 20, motor protective housing 17 fixed connection is on 19 left side inner walls of inner shell, motor 18 is located in the motor protective housing 17, fan blade axle 20 fixed connection is in the motor 18 output, flabellum fixed wheel 14 fixed connection is in the one end that motor 18 was kept away from to fan blade axle 20, the quantity of motor 18 is a plurality of, the even fixed connection of a plurality of motors 18 is in 14 outer walls of fan blade fixed wheel, shell 10, the coaxial setting of flabellum fixed wheel 14 and fan blade axle 20.
Heat dissipation mechanism includes drain pipe 16, bracing piece 21, inlet tube 22, No. two water tanks 27 and clean subassembly, inlet tube 22 is located in the inner shell support column 12 that is located inner shell 19 below, inlet tube 22 upper end and inner shell 19 intercommunication, the outside water source is connected to the one end that inner shell 19 was kept away from to inlet tube 22, No. two water tanks 27 cup joint on flabellum axle 20, drain pipe 16 lower extreme fixed connection is in No. two water tanks 27 outer wall, and drain pipe 16 and No. two water tanks 27 intercommunication, the one end fixed connection that No. two water tanks 27 were kept away from to drain pipe 16 is in inner shell 19 left wall, and drain pipe 16 and inner shell 19 intercommunication, bracing piece 21 fixed connection is between No. two water tanks 27 outer wall and inner shell 19 left wall.
Clean subassembly includes guiding gutter 13, rotatory ring 24, return bend 25 and a water tank 26, the quantity of return bend 25 is a plurality ofly, the even fixed connection of a plurality of return bends 25 is in No. two water tank 27 left ends, and return bend 25 and No. two water tank 27 intercommunications, the one end fixed connection that No. two water tank 27 were kept away from to a plurality of return bends 25 is on rotatory ring 24, rotatory ring 24 sliding connection is in a water tank 26, and return bend 25 and a water tank 26 intercommunication, a water tank 26 fixed connection is in flabellum tight pulley 14 inner wall, the quantity of guiding gutter 13 is the twice of the quantity of flabellum 11, be equipped with a guiding gutter 13 around every flabellum 11 respectively, and guiding gutter 13 and a water tank 26 intercommunication.
Two guiding gutters 13 on the front side and the rear side of each fan blade 11 are arranged in a staggered mode, and therefore the situation that the structural strength of the fan blades 11 is reduced due to the fact that the fan blades 11 are locally too thin can be prevented.
Each inner shell support column 12 is provided with a reinforcing rib 15 at the joint with the inner shell 19, so that the vibration and noise generated during the operation of the fan can be reduced.
The inner shell 19 is a double-layer plate structure embedded with heat insulation materials, and can maintain the temperature stability in the inner shell 19 when the external temperature is too high.
Example two:
referring to fig. 6, a difference from the first embodiment is that a first sealing ring 28 is disposed at a joint of the rotating ring 24 and the elbow 25, and a second sealing ring 29 is disposed at a joint of the motor protecting shell 17 and the vane shaft 20, so as to prevent water leakage from affecting the operation of the motor 18.
Example three:
referring to fig. 6, a difference from the first embodiment is that a limiting ring 30 is fixedly connected to a joint of the fan blade shaft 20 and the fan blade fixing wheel 14, and the limiting ring 30 is fixedly connected to the fan blade shaft 20, so that unsmooth water flow caused by misalignment between the diversion trench 13 and the first water tank 26 can be prevented.
During the use, fix fixed foot 23 in the mounted position, motor 18 is started, motor 18 drives fan blade axle 20 and rotates, fan blade axle 20 drives flabellum stationary vane 14 and rotates, flabellum stationary vane 14 drives flabellum 11 and rotates outwards to discharge fume, simultaneously, pump into water through inlet tube 22 in 19, the temperature rises after water cools off motor 18, then in 16 entering No. two water tanks 27 through the drain pipe, under the centrifugal force effect, the water in No. two water tanks 27 gets into No. one water tank 26 along return bend 25 and flows out along guiding gutter 13, wash and cool down flabellum 11, the temperature is higher this moment, the cleaning performance is good.

Claims (9)

1. The utility model provides a self-cleaning formula fire control smoke exhaust fan which characterized in that: comprises an outer shell (10), an inner shell supporting column (12), an inner shell (19), a fixing pin (23), a driving mechanism and a heat dissipation mechanism;
the outer shell (10) is a hollow cylinder, the number of the inner shell supporting columns (12) is four, four inner shell supporting columns (12) are uniformly and fixedly connected to the inner wall of the outer shell (10) in an annular mode, the inner shell (19) is arranged in the outer shell (10), one ends, far away from the outer shell (10), of the four inner shell supporting columns (12) are fixedly connected to the right side of the outer wall of the inner shell (19), the outer shell (10) and the inner shell (19) are coaxially arranged, the number of the fixing feet (23) is two, and the two fixing feet (23) are fixedly connected to the bottom of the outer shell (;
the driving mechanism and the heat dissipation mechanism are both arranged in the shell (10).
2. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: actuating mechanism includes flabellum (11), flabellum fixed wheel (14), motor protective housing (17), motor (18) and fan blade axle (20), motor protective housing (17) fixed connection is on inner shell (19) left side inner wall, motor protective housing (17) is located in motor protective housing (18), fan blade axle (20) fixed connection is in motor (18) output, fan blade fixed wheel (14) fixed connection is in the one end of keeping away from motor (18) in fan blade axle (20), the quantity of motor (18) is a plurality of, the even fixed connection in fan blade fixed wheel (14) outer wall in a plurality of motor (18), shell (10), fan blade fixed wheel (14) and fan blade axle (20) coaxial setting.
3. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: the heat dissipation mechanism comprises a drain pipe (16), a support rod (21), a water inlet pipe (22), a second water tank (27) and a cleaning assembly, the water inlet pipe (22) is arranged in an inner shell support column (12) positioned below an inner shell (19), the upper end of the water inlet pipe (22) is communicated with the inner shell (19), one end, far away from the inner shell (19), of the water inlet pipe (22) is connected with an external water source, the second water tank (27) is sleeved on a fan blade shaft (20), the lower end of the drain pipe (16) is fixedly connected to the outer wall of the second water tank (27), and the drain pipe (16) is communicated with the second water tank (27), one end of the drain pipe (16) far away from the second water tank (27) is fixedly connected with the left wall of the inner shell (19), and the drain pipe (16) is communicated with the inner shell (19), the support rod (21) is fixedly connected between the outer wall of the second water tank (27) and the left wall of the inner shell (19), and the drain pipe (16) and the support rod (21) are arranged in an up-and-down symmetrical manner.
4. The self-cleaning fire-fighting smoke exhaust fan as claimed in claim 3, characterized in that: clean subassembly includes guiding gutter (13), rotatory ring (24), return bend (25) and water tank (26), the quantity of return bend (25) is a plurality of, a plurality of return bends (25) even fixed connection is in No. two water tank (27) left ends, and return bend (25) and No. two water tank (27) intercommunication, the one end fixed connection of No. two water tank (27) is kept away from in a plurality of return bends (25) is on rotatory ring (24), rotatory ring (24) sliding connection is in water tank (26) one number, and return bend (25) and water tank (26) intercommunication No. one, water tank (26) fixed connection is in flabellum tight pulley (14) inner wall No. one, the quantity of guiding gutter (13) is the twice of the quantity of flabellum (11), be equipped with one guiding gutter (13) around every flabellum (11) respectively, and guiding gutter (13) and water tank (26) intercommunication No. one number.
5. The self-cleaning fire-fighting smoke exhaust fan as claimed in claim 4, characterized in that: the two diversion trenches (13) on the front side and the rear side of each fan blade (11) are arranged in a staggered mode.
6. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: and a reinforcing rib (15) is arranged at the joint of each inner shell supporting column (12) and the inner shell (19).
7. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: the inner shell (19) is a double-layer plate structure with embedded heat-insulating materials.
8. The self-cleaning fire-fighting smoke exhaust fan as claimed in claim 4, characterized in that: a first sealing ring (28) is arranged at the joint of the rotating ring (24) and the elbow (25), and a second sealing ring (29) is arranged at the joint of the motor protective shell (17) and the fan blade shaft (20).
9. The self-cleaning fire-fighting smoke exhaust fan of claim 2, characterized in that: the connection part of the fan blade shaft (20) and the fan blade fixing wheel (14) is fixedly connected with a limiting ring (30).
CN202110385404.7A 2021-04-09 2021-04-09 Self-cleaning formula fire control smoke exhaust fan Active CN113107886B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110385404.7A CN113107886B (en) 2021-04-09 2021-04-09 Self-cleaning formula fire control smoke exhaust fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110385404.7A CN113107886B (en) 2021-04-09 2021-04-09 Self-cleaning formula fire control smoke exhaust fan

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CN113107886A true CN113107886A (en) 2021-07-13
CN113107886B CN113107886B (en) 2022-09-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206582136U (en) * 2017-03-14 2017-10-24 浙江上建风机有限公司 Fire-fighting high-temperature smoke discharging propeller fan
CN210799436U (en) * 2019-07-05 2020-06-19 江苏森泰环境科技发展有限公司 Air suction device of high-temperature exhaust air cabinet
CN210829807U (en) * 2019-10-23 2020-06-23 深圳市毅荣川电子科技有限公司 Cooling fan with dust exhausting function
CN212508917U (en) * 2020-06-24 2021-02-09 江西双通风机有限公司 Automatic cooling high temperature smoke exhaust fan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206582136U (en) * 2017-03-14 2017-10-24 浙江上建风机有限公司 Fire-fighting high-temperature smoke discharging propeller fan
CN210799436U (en) * 2019-07-05 2020-06-19 江苏森泰环境科技发展有限公司 Air suction device of high-temperature exhaust air cabinet
CN210829807U (en) * 2019-10-23 2020-06-23 深圳市毅荣川电子科技有限公司 Cooling fan with dust exhausting function
CN212508917U (en) * 2020-06-24 2021-02-09 江西双通风机有限公司 Automatic cooling high temperature smoke exhaust fan

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