CN212130856U - Air centrifugal refrigerator - Google Patents

Air centrifugal refrigerator Download PDF

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Publication number
CN212130856U
CN212130856U CN202020818076.6U CN202020818076U CN212130856U CN 212130856 U CN212130856 U CN 212130856U CN 202020818076 U CN202020818076 U CN 202020818076U CN 212130856 U CN212130856 U CN 212130856U
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CN
China
Prior art keywords
impeller
centrifugal
air
fan
blades
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Expired - Fee Related
Application number
CN202020818076.6U
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Chinese (zh)
Inventor
荣国华
荣轩平
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Individual
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Individual
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Publication of CN212130856U publication Critical patent/CN212130856U/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers 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
    • F04D29/70—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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The utility model discloses air centrifugal refrigerator includes the casing, including a motor, an end cap, a controller, and a cover plate, fan blade, the shaft hub dress is in the casing, motor shaft and shaft hub connection, fan blade dress is on the shaft hub, fan blade is the hollow body, inside is cut apart into a plurality of runners by a plurality of cut-off pieces, radial distribution is on the fan blade, the cut-off piece is straight line or curve, the runner air inlet is located the root at the fan blade back, the runner gas outlet is connected with throttle pipe air inlet, the throttle pipe is located fan blade end, its gas outlet is located the front of fan blade end. Due to the action of centrifugal force, air is centrifuged, throttled and diffused, the temperature is reduced, and the aim of refrigeration is fulfilled.

Description

Air centrifugal refrigerator
Technical Field
The utility model belongs to the air conditioner refrigeration field, concretely relates to air centrifugal refrigerator.
Background
The existing electric fan blows air to a human body, heat dissipation of the human body is accelerated, the human body feels cool, the electric fan does not actually lower the air temperature, when the air temperature rises, the cooling effect of the electric fan is poor, and the feeling of the human body feeling of being cool is also reduced.
Disclosure of Invention
An object of the utility model is to provide a can reduce air temperature's air centrifugal refrigerator.
The utility model discloses a solution is: the air centrifugal refrigerator comprises a shell, a motor, fan blades and a shaft hub, and is characterized in that the motor, the fan blades and the shaft hub are arranged in the shell, a rotating shaft of the motor is connected with the shaft hub, the fan blades are arranged on the shaft hub, the fan blades are hollow bodies, the interiors of the fan blades are divided into a plurality of flow channels by a plurality of dividing pieces, the flow channels are radially distributed on the fan blades, the dividing pieces are straight lines or curves, an air inlet of each flow channel is positioned at the root of the back face of each fan blade, an air outlet of each flow channel is connected with an air inlet of a throttling pipe, the throttling pipe is positioned in the.
When the motor is started, the shaft hub and the fan blades are driven to rotate, a part of air is blown forward from the outer surface of the fan blades under the action of centrifugal force, the other part of air enters a flow channel inside the fan blades from a flow channel air inlet at the root of the back of the fan blades, the part of air is gathered to the edges of the fan blades under the action of the centrifugal force, high pressure is formed at an air outlet of the flow channel, the air enters a throttling pipe from an air inlet of the throttling pipe for throttling and pressure reduction, and finally the air is sprayed out from an air outlet of the throttling pipe.
Drawings
FIG. 1 is a view showing the structure of an air centrifugal refrigerator in FIG. 1
FIG. 2 is a cross-sectional view of FIG. 1 taken along line 1-1
FIG. 3 is a fan blade configuration diagram
FIG. 4 shows the structure of an air centrifugal refrigerator FIG. 2
FIG. 5 is a view showing a structure of a centrifugal impeller
FIG. 6 shows the structure of an air centrifugal refrigerator FIG. 3
FIG. 7 is a cross-sectional view of FIG. 6 taken along line 2-2
FIG. 8 is a cross-sectional view of FIG. 6 taken along line 3-3
FIG. 9 is a view showing the structure of a front cover plate of a centrifugal impeller
FIG. 10 is a view showing another configuration of a front shroud of a centrifugal impeller
FIG. 11 is a view showing a configuration of a centrifugal rotary impeller
FIG. 12 is a view showing a structure of a cooling fan impeller
FIG. 13 shows the structure of an air centrifugal refrigerator FIG. 4
Description of reference numerals:
1. fan blades, 2, a dividing sheet, 3, a flow channel, 4, 16, 18, 32, a throttle pipe, 5, 14, 31, a throttle pipe air outlet, 6, an air inlet ring groove, 7, a shaft hub, 8, a motor, 9, an air filter, 10, a shell, 11, an air inlet, 12, a centrifugal impeller, 13, 22, an air inlet, 15, 33, 34, blades, 17, an air outlet, 19, a centrifugal rotating impeller, 20, a cooling fan impeller, 21, a centrifugal impeller front cover plate, 23, a pressure expansion cavity, 24, a speed increasing gear, 25, 27, a driving gear, 26, a driven gear, 28, 29, a support, 30, a cooling fan, 31, a water retaining folded plate, 32 and a centrifugal fan.
Detailed Description
In the picture 1, a motor 8, a fan blade 1 and a shaft hub 7 are arranged in a shell 10, a motor rotating shaft is connected with the shaft hub 7, the fan blade 1 is arranged on the shaft hub 7, the fan blade 1 is a hollow body, the interior of the fan blade is divided into a plurality of flow passages 3 by a plurality of dividing sheets 2, the flow passages are radially distributed on the fan blade 1, the dividing sheets 2 are straight lines or curves, an air inlet of each flow passage 3 is communicated with an air inlet ring groove 6 on the shaft hub 7, an air outlet of each flow passage 3 is connected with an air inlet of a throttle pipe 4, the throttle pipe 4 is positioned in an end head of the fan blade 1, an air outlet 5 of the throttle pipe is positioned.
When the motor 8 is started, the shaft hub 7 and the fan blades 7 are driven to rotate, a part of air is blown forward from the outer surface of the fan blades 1 under the action of centrifugal force, the other part of air enters the flow channel 3 from the air inlet ring groove 6, the part of air is gathered to the edge of the fan blades 1 under the action of centrifugal force, high pressure is formed at the air outlet of the flow channel 3, the air enters the throttle pipe from the air inlet of the throttle pipe 4 for throttling and pressure reducing, and finally the air is sprayed out from the air outlet 5 of the throttle pipe. Air is filtered by an air filter 9 and then enters the unit, and the air is indoor return air, outdoor fresh air or mixed air of the indoor return air and the outdoor fresh air. In the figure, the fan blade 1 belongs to an axial flow fan, a centrifugal fan can also be adopted, and a flow channel 3 and a throttle pipe 4 are arranged on the centrifugal fan blade.
In fig. 2, the flow channels 3 may be arranged according to the shape of the fan blade 1.
In fig. 3, the inlet 11 of the flow channel 3 is located at the root of the back surface of the fan blade 1.
Fig. 4 is an air centrifugal refrigerator with a centrifugal impeller, which includes a casing 10, a motor 8, a fan blade 1, a shaft hub 7, and a centrifugal impeller 12, and is characterized in that the motor 8, the fan blade 1, the shaft hub 7, and the centrifugal impeller 12 are installed in the casing 10, a rotating shaft of the motor 8 is connected with the shaft hub 7 and the centrifugal impeller 12, the fan blade 1 is installed on the shaft hub 7, and the centrifugal impeller 12 includes an air suction port 13, a blade, and a throttle pipe. When the motor 8 is started, the shaft hub 7, the fan blade 1 and the centrifugal impeller 12 are driven to rotate, a part of air is blown forward from the outer surface of the fan blade 1 under the action of centrifugal force, the other part of air is sucked in by the air suction port 13 of the centrifugal impeller 12, the part of air is gathered towards the edge of the end of the blade under the action of centrifugal force, high pressure is formed between the blade and the air inlet of the throttle pipe, enters the throttle pipe from the air inlet of the throttle pipe for throttling and pressure reducing, and is finally sprayed out from the air outlet 14 of the throttle pipe. Similarly, the unit can adopt a centrifugal fan.
Fig. 5 is a structural diagram of the centrifugal impeller 12, wherein the blades 15 are straight lines or curves and radially distributed on the impeller disc to divide the impeller disc into a plurality of air flow channels, the air inlets of the flow channels are connected with the air suction port 13 of the centrifugal impeller 12, the air outlets of the flow channels are connected with the air inlets of the throttle pipes, the throttle pipes 16 are distributed on the outer edge of the centrifugal impeller 12, the cross section of each throttle pipe is smaller than that of each air flow channel, the edge tail ends of the blades 15 are not connected with the air inlets of the throttle pipes 16 to form a pressure expansion area, and after air is separated from the edge tail ends of the blades 15, the.
FIG. 6 is another air centrifugal refrigerator with centrifugal impeller, which comprises a casing 10, a motor 8, a fan blade 1, a hub 7 and a centrifugal impeller, and is characterized in that the motor 8, the fan blade 1, the hub 7 and the centrifugal impeller are arranged in the casing 10, the fan blade 1 is arranged on the hub 7, the centrifugal impeller comprises an air suction port 22, a centrifugal impeller front cover plate 21, a centrifugal rotary impeller 19 and a cooling fan impeller 20, the center of the centrifugal impeller front cover plate 21 is provided with the air suction port 22, the outer edge is provided with a pressure expansion cavity 23 and a throttle pipe 18, the centrifugal rotary impeller 19 and the cooling fan impeller 20 are fixed on the casing 10 through a bracket 28, the centrifugal rotary impeller 19 and the cooling fan impeller 20 are provided with blades, the air suction port and the air suction port 22 of the centrifugal impeller front cover plate 21 are coaxially and fixedly connected, the centrifugal rotary impeller 19 is embedded in a groove of the centrifugal impeller front cover plate 21 and forms a seal with the cooling fan, the other side is a cooling fan impeller 20 and a cooling fan volute, the blade of the centrifugal rotating impeller 19 is close to a centrifugal impeller front cover plate 21, the tail end of the edge of the centrifugal rotating impeller is a diffusion cavity 23 of the centrifugal impeller front cover plate, the outer edge of the diffusion cavity 23 is a throttling pipe 18 on the centrifugal impeller front cover plate 21, the blade of the centrifugal rotating impeller 19 and the blade of the cooling fan impeller 20 are respectively fixed on two sides of the same disc surface, the centrifugal rotating impeller 19 and the cooling fan impeller 20 are coaxially connected with a speed increasing gear 24 and rotate at the same speed, the speed increasing gear 24 is meshed with a driving gear 25 of a motor 8, a shaft hub 7 of a fan blade 1 is coaxially connected with a driven gear 26 and rotates at the same speed, and the driven gear 26 is meshed with a driving gear.
When the motor 8 is started, the driving gears 25 and 27 are driven to rotate, the driven gear 26 and the speed-increasing gear 24 are driven to rotate, the shaft hub 7, the fan blade 1, the centrifugal rotating impeller 19 and the cooling fan impeller 20 also rotate along with the rotation, a part of air is blown forward from the outer surface of the fan blade 1 under the action of centrifugal force, the other part of air is sucked in from the air suction port 22 of the front cover plate 21 of the centrifugal impeller, a part of air is gathered to the tail end of the edge of the blade of the centrifugal rotating impeller 19 under the action of centrifugal force, the air is subjected to speed reduction and pressure boosting in the pressure expansion cavity 23 after being separated from the tail end of the edge of the blade, and is finally discharged from the throttle pipe 18 in a throttling mode. Because the temperature of the air rises in the process of accelerating and pressurizing the centrifugal rotating impeller 19, the air needs to be cooled, and a part of the air flows out from the air outlet 17 of the cooling fan on the other side of the disk surface of the centrifugal rotating impeller 19 under the suction of the cooling fan impeller 20, so that the heat energy of the air in the centrifugal rotating impeller 19 is transferred to the air of the cooling fan through the disk surface and finally discharged into the atmosphere. The unit has larger power and is suitable to be placed outdoors.
Fig. 7 is a sectional view 2-2 of fig. 6, the centrifugal impeller front cover plate 21 being secured to the housing 10 by a bracket 28.
Fig. 8 is a sectional view of fig. 6, showing the cooling fan volute 30 secured to the centrifugal impeller front cover plate 21.
Fig. 9 is a structural diagram of a centrifugal impeller front cover plate 21, which is provided with a suction port 22 in the middle, and is distributed with a throttle pipe 18 at the outer edge, and a diffusion cavity 23 is arranged at the inlet of the throttle pipe.
In fig. 10, the throttle tube 32 has changed from the tubular shape of fig. 9 to a slit-like shape.
Fig. 11 is a structural diagram of a centrifugal rotary impeller 19, wherein blades 33 are straight lines or curves and are radially distributed on an impeller disc to divide the impeller disc into a plurality of air flow channels, the air inlets of the flow channels are connected with an air inlet 22 of a front cover plate 21 of the centrifugal impeller, the air outlets of the flow channels are connected with a pressure expansion cavity 23, and the sectional area of the air flow channels is larger than that of a throttling pipe.
Fig. 12 is a structural diagram of a cooling fan impeller 20, wherein blades 34 are straight lines or curved lines and radially distributed on an impeller disc to divide the impeller disc into a plurality of air channels, the air inlets of the channels are connected with an air inlet 22 of a centrifugal impeller front cover plate 21, and the air outlets of the channels are connected with an air outlet 17 of the cooling fan.
In fig. 13, there is a water baffle plate 31, the centrifugal impeller sprays cold air to make the water in the air condense into water drops, and the water drops are stopped at the water baffle plate 31, and there is a device for collecting the condensed water at the bottom. The fan is a centrifugal fan 32.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all belong to the protection scope of the present invention.

Claims (4)

1. The air centrifugal refrigerator includes casing, motor, fan blades and shaft hub, and features that the motor, fan blades and shaft hub are installed inside the casing, the motor shaft is connected to the shaft hub, the fan blades are installed on the shaft hub, the fan blades are hollow and have inside divided into several flow channels distributed radially on the fan blades, the divided blades are linear or curved, the flow channel has air inlet in the root of the back of the fan blades, the flow channel has air outlet connected to the air inlet of throttle pipe, the throttle pipe is in the end of the fan blades and has air outlet in the front of the end of the fan blades, and the throttle pipe has cross section smaller than that of the flow channel.
2. The air centrifugal refrigerator includes casing, motor, fan and centrifugal impeller, and features that the motor, fan and centrifugal impeller are installed inside the casing, the motor shaft is connected to the fan impeller and the centrifugal impeller, the centrifugal impeller includes air sucking port, blades and throttle pipe, the blades are distributed radially on the impeller disc and divided into several air flow channels, the air inlet of the flow channel is connected to the air sucking port of the centrifugal impeller, the air outlet of the flow channel is connected to the air inlet of the throttle pipe, the throttle pipe is distributed in the outer edge of the centrifugal impeller, the cross section of the throttle pipe is smaller than that of the air flow channel, and the edge of the blade is not connected to the air inlet of the throttle pipe to form one pressure expanding area.
3. An air centrifugal refrigerator comprises a shell, a motor, a fan and a centrifugal impeller, and is characterized in that the motor, the fan and the centrifugal impeller are arranged in the shell, the centrifugal impeller comprises a centrifugal impeller front cover plate, a centrifugal rotary impeller and a cooling fan impeller, an air suction port is arranged in the middle of the centrifugal impeller front cover plate, a throttle pipe is distributed on the outer edge of the centrifugal impeller front cover plate, a pressure expansion cavity is arranged at the inlet of the throttle pipe and fixed on the shell through a bracket, the centrifugal rotary impeller and the cooling fan impeller are provided with blades which are coaxially and fixedly connected, the air suction port is communicated with the air suction port of the centrifugal impeller front cover plate, the centrifugal rotary impeller is embedded into a groove of the centrifugal impeller front cover plate and forms a seal with the cooling fan impeller, one side of the centrifugal rotary impeller is provided with the centrifugal impeller front cover plate, the other side is provided, the edge end of the centrifugal impeller is provided with a pressure expansion cavity of a front cover plate of the centrifugal impeller, the outer edge of the pressure expansion cavity is provided with a throttle pipe on the front cover plate of the centrifugal impeller, blades of the centrifugal rotary impeller and blades of a cooling fan impeller are respectively fixed on two sides of the same disc surface, the centrifugal rotary impeller and the cooling fan impeller are coaxially connected with a speed increasing gear and rotate at the same speed, the speed increasing gear is meshed with a driving gear of a motor, the fan impeller is coaxially connected with a driven gear and rotates at the same speed, the driven gear is meshed with the driving gear of the motor, the blades of the centrifugal rotary impeller are linear or curved and radially distributed on an impeller disc, the impeller disc is divided into a plurality of air flow channels, an air inlet of each flow channel is connected with an air suction port of the front cover plate of the centrifugal impeller, an air outlet of each flow channel is connected with the pressure expansion cavity, the impeller disc is divided into a plurality of air channels, the air inlets of the channels are connected with the air suction ports of the front cover plate of the centrifugal impeller, and the air outlets of the channels are connected with the air outlets of the cooling fan.
4. An air centrifugal chiller according to claim 1, 2 or 3 wherein the fan is an axial fan or a centrifugal fan.
CN202020818076.6U 2020-05-03 2020-05-18 Air centrifugal refrigerator Expired - Fee Related CN212130856U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010368896 2020-05-03
CN2020103688964 2020-05-03

Publications (1)

Publication Number Publication Date
CN212130856U true CN212130856U (en) 2020-12-11

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ID=71555278

Family Applications (4)

Application Number Title Priority Date Filing Date
CN202010416557.9A Pending CN111425422A (en) 2020-05-03 2020-05-18 Air centrifugal refrigerator
CN202020818076.6U Expired - Fee Related CN212130856U (en) 2020-05-03 2020-05-18 Air centrifugal refrigerator
CN202010482119.2A Pending CN111425423A (en) 2020-05-03 2020-06-01 Air centrifugal refrigerator
CN202020961343.5U Expired - Fee Related CN212536137U (en) 2020-05-03 2020-06-01 Air Centrifugal Refrigerator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202010416557.9A Pending CN111425422A (en) 2020-05-03 2020-05-18 Air centrifugal refrigerator

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN202010482119.2A Pending CN111425423A (en) 2020-05-03 2020-06-01 Air centrifugal refrigerator
CN202020961343.5U Expired - Fee Related CN212536137U (en) 2020-05-03 2020-06-01 Air Centrifugal Refrigerator

Country Status (1)

Country Link
CN (4) CN111425422A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114308887B (en) * 2021-12-31 2022-09-27 上海坤廷智能科技有限公司 Mobile detection equipment based on four-eye structured light

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Publication number Publication date
CN111425422A (en) 2020-07-17
CN212536137U (en) 2021-02-12
CN111425423A (en) 2020-07-17

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201211

CF01 Termination of patent right due to non-payment of annual fee