Self-circulation cooling centrifugal fan

Abstract

The utility model discloses a self-circulation cooling centrifugal fan which comprises a bottom plate, a motor and a fan shell are fixedly connected to the upper surface of the bottom plate, a main shaft is rotatably connected to the output end of the motor, a driving wheel is fixedly connected to the outer end of the main shaft, a rotating shaft is rotatably connected to the fan shell, a driven wheel and an impeller are arranged on the rotating shaft, and the driven wheel and the impeller are fixedly connected to the output end of the motor. A conveyor belt is arranged on the driving wheel and the driven wheel, and a shell is fixedly connected to the back of the fan shell; a refrigeration circulation device and a cooling device are fixedly connected to the upper surface of the bottom plate, a cold supply pipe is arranged on the refrigeration circulation device, an exhaust fan and a flow guide groove are arranged in the shell, a liquid supply pipe and a liquid suction pipe are arranged on the cooling device, and a spiral groove is formed in the rotating shaft. By means of the devices, hot air is orderly guided to the outside through the flow guide grooves and the characteristic that the hot air follows upwards, rapid heat dissipation and air exchange of the internal space are achieved, and the internal devices are cooled under the action of the refrigeration circulation device and the cooling device.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan cooling technical field especially relates to a centrifugal fan of self -circulation cooling. BACKGROUND

[0002] Centrifugal fan is a kind of equipment frequently used in industrial ventilation, gas delivery and air discharge, and it converts mechanical energy into kinetic energy and pressure energy of gas by the rotation of impeller.

[0003] The existing centrifugal fan cooling technology mostly adopts cooling by fan, but this way has limited cooling effect in high-load and high-sealing requirement environment, such as Chinese patent discloses "a centrifugal fan with self-circulation cooling device", its application number is "CN202022257193.2", it can slow down the speed of water flow by adopting heat dissipation fin, can fully transmit the heat of spiral oil pipe to water, and can also accelerate the heat conduction, and the heat is transmitted to the outer wall of cooling jacket pipe to dissipate heat, but the oil temperature in oil tank may gradually rise due to continuous high-load use when it works, which affects the cooling effect. UTILITY MODEL CONTENTS

[0004] The utility model discloses a centrifugal fan of self -circulation cooling, and the hot air generated by impeller is promptly extracted by suction fan, and the hot air is guided to the outside by the natural rising characteristics of guide groove, and the cold air generated by refrigeration circulating device is transported to the inside by sending cold pipe, so that the impeller is cooled, and the cooling liquid is accurately transported to the spiral groove in the rotating shaft by sending liquid pipe, the unique structure of spiral shape greatly prolongs the cooling liquid path, and the heat exchange area is greatly expanded.

[0005] The utility model discloses a centrifugal fan of self -circulation cooling, and the hot air generated by impeller is promptly extracted by suction fan, and the hot air is guided to the outside by the natural rising characteristics of guide groove, and the cold air generated by refrigeration circulating device is transported to the inside by sending cold pipe, so that the impeller is cooled, and the cooling liquid is accurately transported to the spiral groove in the rotating shaft by sending liquid pipe, the unique structure of spiral shape greatly prolongs the cooling liquid path, and the heat exchange area is greatly expanded.

[0006] The utility model discloses a centrifugal fan of self -circulation cooling, the impeller is located inside the fan shell, the driving wheel and the driven wheel are all belt pulley. Through above device, through driving wheel and driven wheel, impeller can realize stable rotation, ensure that the fan high -efficient operation, and the setting of driving wheel and driven wheel improves transmission efficiency and reduces the noise.

[0007] The utility model discloses a centrifugal fan of self -circulation cooling, refrigeration circulating device side is provided with the cold -sending pump, the cold -sending pump is connected with the cold -sending pipe fixedly. Through above device, through the cold -sending pump, cooling liquid can be stably transported, guarantees the continuity and high efficiency of cooling process, effectively reduces the equipment temperature.

[0008] The utility model discloses a centrifugal fan of self -circulation cooling, the cold -sending pipe is located the immediate below of guide groove, the guide groove is inclined. Through above device, through the position of guide groove, because hot air floats upwards, is effectively delivered into the guide groove to discharge.

[0009] The utility model discloses a centrifugal fan of self -circulation cooling, be provided with dust screen on the guide groove, and the air -exhausting fan is located on the guide groove. Through above device, through dust screen, effectively filter the dust in the air.

[0010] The utility model discloses a centrifugal fan of self -circulation cooling, the liquid -sending pipe, liquid -sucking pipe all are connected with spiral groove, the liquid -sending pipe and liquid -sucking pipe all are provided with rotator, and the rotator is located the both ends of the pivot. Through above device, through rotator, the liquid -sending pipe and liquid -sucking pipe do not rotate when pivot rotates, make it be fixed.

[0011] The utility model discloses a centrifugal fan of self -circulation cooling, the cooling device top is provided with first pump and second pump, the liquid -sending pipe fixed connection is on the output of first pump, and the liquid -sucking pipe fixed connection is on the input of second pump. Through above device, through first pump and second pump, the cooling liquid is transmitted to go out, and the cooled cooling liquid is recovered.

[0012] The utility model discloses a centrifugal fan of self -circulation cooling, the spiral groove is spiral shape, the liquid -sending pipe is located the left side of pivot, and the liquid -sucking pipe is located the right side of pivot. Through above device, through the shape of spiral groove, the flow path of cooling liquid is optimized, reduces flow resistance, improves circulation efficiency.

[0013] Beneficial effects

[0014] Compared with the prior art, the centrifugal fan for self-circulating cooling cooperates with the air guide groove and the air extraction fan, the air extraction fan timely extracts the hot air generated by the impeller, the air guide groove utilizes the natural rising characteristics of the hot air and directs the hot air to the outside, the cold air generated by the refrigeration circulating device is transported to the inside by the cold air delivery pipe, the impeller is cooled, the cooling liquid is accurately delivered to the internal spiral groove of the rotating shaft by the liquid delivery pipe, the unique spiral structure greatly prolongs the cooling liquid path and greatly expands the heat exchange area. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further explained below in combination with the drawings and embodiments.

[0016] Figure 1 It is a front view of the centrifugal fan for self-circulating cooling of the utility model;

[0017] Figure 2 It is a front view of the centrifugal fan for self-circulating cooling of the utility model; Figure 1 Internal structure view;

[0018] Figure 3 It is an enlarged view of position A in the centrifugal fan for self-circulating cooling of the utility model; Figure 2

[0019] Figure 4 It is an enlarged view of position B in the centrifugal fan for self-circulating cooling of the utility model. Figure 2

[0020] Legend:

[0021] 1, bottom plate; 2, motor; 3, main shaft; 4, driving wheel; 5, driven wheel; 6, conveying belt; 7, rotating shaft; 8, fan shell; 9, impeller; 10, shell; 11, air guide groove; 12, dust screen; 13, air extraction fan; 14, cold air delivery pipe; 15, refrigeration circulating device; 16, cold air delivery pump; 17, cooling device; 18, first pump; 19, liquid delivery pipe; 20, spiral groove; 21, rotator; 22, liquid suction pipe; 23, second pump. DETAILED DESCRIPTION

[0022] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] Reference Figures 1-4 ​​The utility model discloses a kind of self-circulation cooling centrifugal fan, it includes: bottom plate 1, bottom plate 1 upper surface fixedly connected with motor 2 and fan shell 8, motor 2 output end rotationally connected with main shaft 3, main shaft 3 outer end fixedly connected with driving wheel 4, fan shell 8 is rotationally connected with shaft 7, shaft 7 is provided with driven wheel 5 and impeller 9, impeller 9 is the core component of gas delivery, impeller 9 is located inside fan shell 8, driving wheel 4 and driven wheel 5 are belt pulley, driving wheel 4 and driven wheel 5 are provided with conveyor belt 6, fan shell 8 back fixedly connected with shell 10.

[0024] Bottom plate 1 upper surface fixedly connected with refrigeration cycle device 15 and cooling device 17, refrigeration cycle device 15 is compressed into high-temperature high-pressure gas in compressor with refrigerant, high-temperature high-pressure refrigerant gas is cooled into liquid when releasing heat through condenser, refrigerant liquid is reduced in pressure and temperature through throttle valve or capillary, becomes low-temperature low-pressure liquid, low-temperature low-pressure refrigerant liquid enters evaporator, absorbs the heat around and evaporates into gas, so as to realize refrigeration effect, cooling device 17 provides liquid cooling cycle, ensures efficient heat exchange, prevents overheating, refrigeration cycle device 15 is provided with cold pipe 14, cold pipe 14 transports cold air, refrigeration cycle device 15 side is provided with cold pump 16, cold pump 16 is fixedly connected with cold pipe 14, shell 10 is provided with suction fan 13 and flow guide groove 11 in interior, suction fan 13 promptly removes the hot air generated by impeller 9, cold pipe 14 is located just below flow guide groove 11, flow guide groove 11 is inclined, flow guide groove 11 is provided with dust screen 12, suction fan 13 is located on flow guide groove 11, cooling device 17 is provided with liquid feeding pipe 19 and liquid suction pipe 22, shaft 7 is provided with helical groove 20 in interior, helical groove 20 prolongs the flow path of cooling liquid, increases heat dissipation area, improves heat exchange efficiency, liquid feeding pipe 19 and liquid suction pipe 22 are in communication with helical groove 20, liquid feeding pipe 19 and liquid suction pipe 22 are provided with rotator 21, rotator 21 facilitates shaft 7 when rotating, liquid feeding pipe 19 and liquid suction pipe 22 do not rotate, rotator 21 is located at both ends of shaft 7, cooling device 17 top is provided with first pump 18 and second pump 23, liquid feeding pipe 19 is fixedly connected on the output end of first pump 18, liquid suction pipe 22 is fixedly connected on the input end of second pump 23, helical groove 20 is spiral shape, liquid feeding pipe 19 is located at the left side of shaft 7, liquid suction pipe 22 is located at the right side of shaft 7.

[0025] Working principle: in use, centrifugal fan in the opening, due to the internal generated heat can not be cooled, refrigeration cycle device 15 will be cold air through the cold pipe 14 to the impeller 9 position, so that it is cooled, impeller 9 generated by the heat is extracted by the suction fan 13, due to the hot air upward, under the action of guide groove 11, is discharged to the outside, then the shaft 7 rotates, will produce heat, under the action of cooling device 17, will cooling liquid through the liquid pipe 19 is transported to the spiral groove 20, spiral spiral groove 20 prolongs the cooling liquid path, increases the heat exchange area, the cooling liquid after use is sucked by the liquid suction pipe 22, returns to the cooling device 17 and is recycled.

[0026] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A self-circulating cooled centrifugal fan characterized by, Include: The bottom plate (1), the upper surface of the bottom plate (1) is fixedly connected with the motor (2) and the fan shell (8), the output end of the motor (2) is rotatably connected with the main shaft (3), the outer end of the main shaft (3) is fixedly connected with the driving wheel (4), the fan shell (8) is rotatably connected with the rotating shaft (7), the rotating shaft (7) is provided with the driven wheel (5) and the impeller (9), the driving wheel (4) and the driven wheel (5) are provided with the conveyor belt (6), the back of the fan shell (8) is fixedly connected with the shell (10); The upper surface of the bottom plate (1) is fixedly connected with the refrigeration cycle device (15) and the cooling device (17), the refrigeration cycle device (15) is provided with a cold pipe (14), the inside of the shell (10) is provided with a suction fan (13) and a guide groove (11), the cooling device (17) is provided with a liquid pipe (19) and a liquid suction pipe (22), the rotating shaft (7) is provided with a spiral groove (20).

2. A self-cooling centrifugal fan according to claim 1, characterized in that The impeller (9) is located in the inside of the fan shell (8), the driving wheel (4) and the driven wheel (5) are all belt pulleys.

3. A self-cooling centrifugal fan according to claim 1, wherein The side of the refrigeration cycle device (15) is provided with a cold pump (16), the cold pump (16) is fixedly connected with the cold pipe (14).

4. A self-cooling centrifugal fan according to claim 1, wherein The cold pipe (14) is located directly below the guide groove (11), the guide groove (11) is inclined.

5. A self-cooling centrifugal fan according to claim 1, wherein The guide groove (11) is provided with a dust screen (12), the suction fan (13) is located on the guide groove (11).

6. A self-cooling centrifugal fan according to claim 1, wherein The liquid pipe (19) and the liquid suction pipe (22) are in communication with the spiral groove (20), the liquid pipe (19) and the liquid suction pipe (22) are both provided with a rotator (21), the rotator (21) is located at both ends of the rotating shaft (7).

7. A self-cooling centrifugal fan according to claim 1, wherein The cooling device (17) is provided with a first pump (18) and a second pump (23) on the top, the liquid pipe (19) is fixedly connected on the output end of the first pump (18), the liquid suction pipe (22) is fixedly connected on the input end of the second pump (23).

8. A self-cooling centrifugal fan according to claim 1, wherein The spiral groove (20) is spiral, the liquid pipe (19) is located on the left side of the rotating shaft (7), the liquid suction pipe (22) is located on the right side of the rotating shaft (7).

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