CN215672808U

CN215672808U - High-temperature-resistant axial flow fan

Info

Publication number: CN215672808U
Application number: CN202122085942.2U
Authority: CN
Inventors: 张仁强; 李洪; 石孝凯
Original assignee: Chongqing Yigu Wind Tunnel Technology Co ltd
Current assignee: Chongqing Yigu Wind Tunnel Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-28
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a high-temperature-resistant axial flow fan which comprises a fan shell and a cooling box, wherein a heat insulation unit is connected to the fan shell, the heat insulation unit completely wraps a motor, the heat insulation unit is communicated with the cooling box through a pipeline, the heat insulation unit is used for cooling the motor, the cooling box is used for heat exchange, and a heat insulation disc is arranged at the joint of the heat insulation unit and the fan shell. According to the utility model, the environment of the motor is cooled through the heat insulation unit, the environment of the motor and the environment of the fan impeller are separated through the heat insulation disc and the heat insulation unit, the temperature of the air flow is ensured, and the motor is cooled at the same time.

Description

High-temperature-resistant axial flow fan

Technical Field

The utility model relates to the technical field of axial flow fans, in particular to a high-temperature-resistant axial flow fan.

Background

The axial flow fan has a wide application range, such as an electric fan, and an air conditioner external unit fan is an axial flow type running fan. The "axial flow" is so called because the airflow flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing, and is simple in structure but high in data requirement.

In the higher environment of air current temperature, the motor of current fan often does not set up thermal-insulated protection, directly places in the high temperature air current that needs the transfer, and the life of motor is low, and has higher spontaneous combustion hidden danger, and some motors of having done thermal-insulated protection often cool down whole fan for the air current through the fan is also cooled down, and this kind of mode is not applicable to in the operational environment that needs to use high temperature air current, awaits the opportune moment and waits to solve.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a high-temperature-resistant axial flow fan, which solves the problems that in the prior art, a fan motor is not protected and is directly placed in high-temperature airflow, potential safety hazards exist, and the temperature of the airflow is reduced while the fan is cooled by some heat insulation structures.

According to the embodiment of the utility model, the high-temperature-resistant axial flow fan comprises a fan shell and a cooling box, wherein a heat insulation unit is connected to the fan shell, the heat insulation unit completely wraps a motor in the fan shell, the heat insulation unit is communicated with the cooling box through a pipeline, the heat insulation unit is used for cooling the motor, the cooling box is used for heat exchange, a heat insulation disc is arranged at the joint of the heat insulation unit and the fan shell, and the heat insulation disc enables the heat insulation unit not to be communicated with the fan shell.

The technical principle of the utility model is as follows: the motor is wrapped up completely to thermal-insulated unit, and in high temperature environment, the cooler bin carries out the heat transfer with thermal-insulated unit, reduces the temperature in the thermal-insulated unit to reduce the ambient temperature that the motor is located, and thermal-insulated dish makes thermal-insulated unit not communicate with the fan shell, can not influence the air current temperature of the fan of flowing through, the thermal-insulated unit only cools down to the environment that the motor is located.

Compared with the prior art, the utility model has the following beneficial effects: through having adopted thermal-insulated unit, cool down the environment that the motor was located, thermal-insulated dish and thermal-insulated unit still separate the environment that the motor was located and the environment that fan wheel was located, do not influence the air current temperature through the impeller, when guaranteeing air current temperature, cool down the motor, it has solved to have the fan motor among the prior art and has not done the protection, directly place in the high temperature air current, there is the potential safety hazard, and some thermal-insulated structure carry out refrigerated while with the fan, the problem of using the air current temperature has been reduced, prevented that the motor is directly in the high temperature air current, the potential safety hazard has been avoided.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

FIG. 2 is a schematic side view of the overall structure of the embodiment of the present invention.

Fig. 3 is a schematic diagram of an internal structure according to an embodiment of the present invention.

In the above drawings: 1. a heat insulating cylinder; 2. a fan housing; 3. a motor; 4. a water-cooled tube; 5. a cooling tank; 101. a liquid discharge pipe; 102. a liquid inlet pipe; 201. an air inlet; 301. an impeller; 302. a rotating shaft; 303. a heat insulation plate; 501. a drain pipe; 502. a water inlet pipe; 1011. a first connecting pipe; 1021. a second connecting pipe.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a high temperature resistant axial flow fan, including a fan housing 2 and a cooling box 5, wherein an impeller 301 is disposed in the fan housing 2, a motor 3 for driving the impeller 301 to rotate is disposed at one end of the fan housing 2, a heat insulation unit is connected to the fan housing 2, the heat insulation unit completely wraps the motor 3, the heat insulation unit is communicated with the cooling box 5 through a pipeline, the heat insulation unit is used for cooling the motor 3, the cooling box 5 is used for heat exchange, a heat insulation disc 303 is disposed at a connection position of the heat insulation unit and the fan housing 2, and the heat insulation disc 303 prevents the heat insulation unit from being communicated with the fan housing 2. The working principle of the embodiment is as follows: the heat insulation unit wraps the motor 3 completely, in a high-temperature environment, the cooling box 5 exchanges heat with the heat insulation unit, the temperature in the heat insulation unit is reduced, the environment temperature of the motor 3 is reduced, the heat insulation disc 303 enables the heat insulation unit not to be communicated with the fan shell 2, the air flow temperature of the fan flowing through cannot be influenced, and the heat insulation unit only cools the environment of the motor 3. Through having adopted thermal-insulated unit, cool down the environment that motor 3 located, thermal-insulated dish 303 still separates the environment that motor 3 located and the environment that fan impeller 301 located with thermal-insulated unit, do not influence the air current temperature through impeller 301, when guaranteeing air current temperature, cool down motor 3, it has solved to have fan motor 3 to do not do the protection among the prior art, directly place in the high temperature air current, there is the potential safety hazard, and some thermal-insulated structure when cooling down the fan, the problem of using the air current temperature has been reduced, motor 3 has been prevented to be directly in the high temperature air current, the potential safety hazard has been avoided.

The heat insulation unit comprises a heat insulation barrel 1, a water cooling pipe 4, a liquid discharge pipe 101 and a liquid inlet pipe 102, wherein the water cooling pipe 4 is wound on the periphery of the motor 3, the water cooling pipe 4 is fixedly connected with the inner wall of the heat insulation barrel 1, the side wall of the heat insulation barrel 1 is fixedly connected with the liquid discharge pipe 101, the side wall of the heat insulation barrel 1 is also fixedly connected with the liquid inlet pipe 102, the liquid discharge pipe 101 is arranged above the liquid inlet pipe 102, the liquid discharge pipe 101 is communicated with the output end of the water cooling pipe 4, and the liquid inlet pipe 102 is communicated with the input end of the water cooling pipe 4.

Cooling tank 5 includes drain pipe 501, inlet tube 502, water inlet, outlet and water pump, the output of inlet tube 502 with the inner space intercommunication of cooling tank 5, drain pipe 501's input with the inner space intercommunication of cooling tank 5, drain pipe 501 sets up the top of inlet tube 502, the output of water pump with the input intercommunication of inlet tube 502, drain pipe 501's output with the input intercommunication of water pump, still seted up on cooling tank 5 water inlet and outlet, the water inlet through first connecting pipe 1011 with the output intercommunication of fluid-discharge tube 101, the outlet through second connecting pipe 1021 with the input intercommunication of feed liquor pipe 102.

Further, the motor 3, the heat insulation disc 303 and the heat insulation cylinder 1 are coaxially arranged, and the diameter of the heat insulation disc 303 is larger than that of the heat insulation cylinder 1. The purpose is to completely seal the joint of the heat insulation cylinder 1 and the fan shell 2 and ensure that the airflow in the heat insulation cylinder 1 does not exchange heat with the airflow flowing through the fan.

The motor 3 is installed on the heat insulation disc 303, an output shaft of the motor 3 extends out of the heat insulation disc 303 to the inside of the fan shell 2, the output shaft of the motor 3 is rotatably connected with the heat insulation disc 303, and the output shaft is connected with a rotating shaft 302 of the fan.

Preferably, the blower housing 2 includes an air inlet 201, the air inlet 201 has a fan shape, and a plurality of the air inlets 201 are arranged around the heat insulation disc 303 in an annular array. Its aim at, prevent air intake 201 with a thermal-insulated section of thick bamboo 1 contact has guaranteed the installation steadiness of a thermal-insulated section of thick bamboo 1.

The cooling box 5 is disposed below the heat insulating unit. The purpose is that the liquid pumped into the water-cooling pipe 4 can flow from high to low conveniently, the liquidity of the liquid in the water-cooling pipe 4 is improved, the workload of the water pump is reduced, and the energy is saved.

The detailed working process of the embodiment is as follows:

firstly, the motor 3 is fixed on the heat insulation disc 303 through a bolt, then the heat insulation cylinder 1 is installed on the heat insulation disc 303 through a bolt, heat insulation cotton is arranged at the joint of the heat insulation disc 303 and the heat insulation cylinder 1, at this time, the motor 3 is placed into the heat insulation cylinder 1, cooling liquid is pumped into the cooling box 5 through the water pump, when the cooling liquid overflows from the drain pipe 501, the input end of the water pump is communicated with the output end of the drain pipe 501, and the cooling box 5 feeds the cooling liquid into the liquid inlet pipe 102 through the second connecting pipe 1021.

Then, the cooling liquid enters the water cooling pipe 4 through the liquid inlet pipe 102, is discharged to the cooling box 5 through the liquid discharge pipe 101, and is pumped out from the water discharge pipe 501 through the water pump, so that circulation is realized.

When the room temperature is not enough to rapidly cool the liquid in the cooling box 5, in the process of water circulation, cooling media such as ice blocks can be added into the cooling box 5, so that the heat exchange efficiency of the cooling box 5 is improved.

Because the impeller 301 of the axial flow fan is arranged in the fan shell 2, and the fan shell 2 and the heat insulation barrel 1 are independent of each other, the impeller 301 does not stir the airflow in the heat insulation barrel 1, and the temperature of the airflow flowing through the impeller 301 is ensured while the motor 3 is cooled.

It should be noted that the material of the cooling box 5 is copper or other material with good heat conductivity, and the peripheries of the heat insulation cylinder 1 and the heat insulation disc 303 are wrapped with heat insulation cotton.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a high temperature resistant axial fan which characterized in that: including fan shell (2) and cooler bin (5), be connected with thermal-insulated unit on fan shell (2), thermal-insulated unit will motor (3) in fan shell (2) wraps up completely, thermal-insulated unit pass through the pipeline with cooler bin (5) intercommunication, thermal-insulated unit is used for cooling motor (3), cooler bin (5) are used for the heat transfer, thermal-insulated unit with the junction of fan shell (2) is provided with thermal-insulated dish (303), thermal-insulated dish (303) make thermal-insulated unit not with fan shell (2) intercommunication.

2. The high temperature resistant axial flow fan of claim 1, wherein: the heat insulation unit comprises a heat insulation barrel (1), a water cooling pipe (4), a liquid discharge pipe (101) and a liquid inlet pipe (102), wherein the water cooling pipe (4) is wound on the periphery of the motor (3), the water cooling pipe (4) is fixedly connected with the inner wall of the heat insulation barrel (1), the side wall of the heat insulation barrel (1) is fixedly connected with the liquid discharge pipe (101), the side wall of the heat insulation barrel (1) is also fixedly connected with the liquid inlet pipe (102), the liquid discharge pipe (101) is arranged above the liquid inlet pipe (102), the liquid discharge pipe (101) is communicated with the output end of the water cooling pipe (4), and the liquid inlet pipe (102) is communicated with the input end of the water cooling pipe (4).

3. The high temperature resistant axial flow fan of claim 2, wherein: cooler bin (5) are including drain pipe (501), inlet tube (502), water inlet, outlet and water pump, the output of inlet tube (502) with the inner space intercommunication of cooler bin (5), the input of drain pipe (501) with the inner space intercommunication of cooler bin (5), drain pipe (501) set up the top of inlet tube (502), the output of water pump with the input intercommunication of inlet tube (502), the output of drain pipe (501) with the input intercommunication of water pump, still seted up on cooler bin (5) water inlet and outlet, the water inlet through first connecting pipe (1011) with the output intercommunication of fluid-discharge tube (101), the outlet through second connecting pipe (1021) with the input intercommunication of feed liquor pipe (102).

4. A high temperature resistant axial flow fan as claimed in claim 3, wherein: the motor (3), heat insulating disc (303) and heat insulating cylinder (1) set up the coaxial line, the diameter of heat insulating disc (303) is greater than the diameter of heat insulating cylinder (1).

5. The high-temperature resistant axial flow fan according to claim 1 or 4, wherein: the motor (3) is installed on the heat insulation disc (303), the output shaft of the motor (3) extends out of the heat insulation disc (303) into the fan shell (2), the output shaft of the motor (3) is rotatably connected with the heat insulation disc (303), and the output shaft is connected with a rotating shaft (302) of the fan.

6. The high temperature resistant axial flow fan of claim 5, wherein: the fan shell (2) comprises an air inlet (201), the air inlet (201) is fan-shaped, and the air inlet (201) is arranged around the heat insulation disc (303) in an annular array mode.

7. The high temperature resistant axial flow fan of claim 5, wherein: the cooling box (5) is arranged below the heat insulation unit.