CN219366406U

CN219366406U - Centrifugal fan with heat dissipation cooling function

Info

Publication number: CN219366406U
Application number: CN202223510306.0U
Authority: CN
Inventors: 张强; 张万毅; 时培培
Original assignee: Henan Dajing Fan Technology Co ltd
Current assignee: Henan Dajing Fan Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-07-18
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of industrial fans, in particular to a centrifugal fan with a heat dissipation cooling function, which comprises a volute, a cooling cover, a liquid box and a liquid delivery pump, wherein the cooling cover is arranged outside the volute and forms a cooling cavity on the outer wall of the volute, the liquid delivery pump pumps cooling liquid in the liquid box into the cooling cavity when the fan works, cooling liquid is poured outside the volute to cool the volute, meanwhile, in the air exhausting process pumped by the centrifugal fan, the cooling liquid in the liquid box is cooled after being guided by a guide cylinder to pass through the inside of the liquid box.

Description

Centrifugal fan with heat dissipation cooling function

Technical Field

The utility model relates to the technical field of industrial fans, in particular to a centrifugal fan with a heat dissipation and cooling function.

Background

The centrifugal fan is a driven fluid machine which can raise the pressure of gas and discharge the gas by means of inputted mechanical energy, and is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces and kilns, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and selection of grains, inflation and propulsion of wind tunnel wind sources and air cushion ships, etc.

When the centrifugal fan works, air in the centrifugal fan flows rapidly, and the air rubs with the inner wall of the volute to heat the volute, so that centrifugal fan equipment for solving the heat problem is needed.

Disclosure of Invention

In order to solve the problems, the utility model provides a centrifugal fan with a heat dissipation cooling function, which comprises a volute, a cooling cover, a liquid box and a liquid delivery pump, wherein the cooling cover is arranged outside the volute and forms a cooling cavity on the outer wall of the volute, the liquid delivery pump pumps cooling liquid in the liquid box into the cooling cavity when the fan works, cooling liquid is poured outside the volute to cool the volute, meanwhile, in the air discharge process pumped by the centrifugal fan, the cooling liquid in the liquid box is discharged after being guided by a guide cylinder to pass through the inside of the liquid box, and the cooling liquid in the liquid box is cooled.

The present utility model provides a centrifugal fan with heat dissipation and cooling functions, comprising

The spiral case, one side of the spiral case is provided with an air inlet, the outside of the spiral case is fixedly connected with an air outlet pipe, the inside of the spiral case is rotatably provided with an impeller, and the impeller is driven by a motor arranged outside the spiral case to drive air in the spiral case to be discharged from the air outlet pipe;

the cooling cover is of a circular cover body structure with a groove on the inner wall, an opening groove for the air outlet pipe to pass through is formed in the surface of the cooling cover, and the cooling cover is fixedly sleeved outside the volute to form a cooling cavity outside the volute;

the liquid tank is internally provided with a plurality of guide pipes in a penetrating way, and two ends of each guide pipe are fixedly connected with the upper interface groove and the lower interface groove respectively so as to communicate the upper interface groove with the lower interface groove;

the liquid delivery pump is communicated with the bottom end of the liquid tank and the top end of the cooling cover and used for pumping cooling liquid in the liquid tank into the cooling cavity, and the top end of the liquid tank is communicated with the bottom end of the cooling cover through a liquid return pipe.

In some embodiments, the device further comprises a device rack, and the volute, the cooling cover, the liquid tank and the liquid delivery pump are all arranged on the device rack, and the upper surface of the cooling tank is lower than the lower edge of the cooling cover.

In some embodiments, a ventilating hood is arranged above the liquid tank, the bottom end of the ventilating hood is communicated with the upper interface groove, an ventilating barrel is arranged at the top end of the ventilating hood, and the motor is arranged on the equipment rack through a rack and is positioned in the ventilating hood.

In some embodiments, the lower interface slot is frustoconical or quadrangular frustum shaped.

In some embodiments, a three-way joint is arranged at the bottom of the cooling cover, the liquid return pipe is communicated with the bottom end of the cooling cover through the three-way joint, and a drain valve is arranged at the third end of the three-way joint.

In some embodiments, the tee joint is a T-joint.

In some embodiments, a surface of the cooling jacket is fitted with a one-way ventilation valve.

Advantageous effects

1. The cooling cover forms a cooling cavity on the outer wall of the volute, and under the action of the liquid delivery pump, cooling liquid is continuously poured on the top of the volute in the working process of the centrifugal fan, so that the surface temperature of the volute is reduced, and the temperature of the volute is reduced; 2. the air exhausted from the air outlet pipe is exhausted after passing through the liquid tank under the guidance of the guide cylinder, and can be cooled in the liquid tank, and the air flow velocity in the guide cylinder and the guide pipe is reduced by reasonably designing the dimensions of the guide cylinder and the guide pipe, so that the heat generated by the guide cylinder and the liquid tank is reduced.

Drawings

FIG. 1 is a schematic illustration of the relative positions of a volute, motor, and liquid tank;

FIG. 2 is a schematic illustration of the piping connection of the liquid tank to the cooling hood;

FIG. 3 is a schematic cross-sectional view of a liquid tank and cooling hood;

FIG. 4 is a schematic view of the internal structure of the volute;

in the figure: 1. the device comprises a volute casing, 11, an air inlet, 12, an air outlet pipe, 13, an impeller, 14, a motor, 2, a cooling cover, 21, a three-way joint, 3, a liquid tank, 31, a lower interface groove, 32, an upper interface groove, 4, a liquid delivery pump, 41 and a liquid return pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Example 1

As shown in fig. 1-4: a centrifugal fan with heat dissipation and cooling functions comprises a volute 1, a cooling cover 2, a liquid tank 3 and a liquid delivery pump 4.

An air inlet 11 is formed in one side of the volute 1, an air outlet pipe 12 is fixedly connected to the outer side of the volute 1, an impeller 13 is rotatably mounted in the volute 1, and the impeller 13 is driven by a motor 14 mounted outside the volute 1 to drive air in the volute 1 to be discharged from the air outlet pipe 12. Specifically, the spiral case 1 is used as a main body part of a centrifugal fan, and is used for driving air to flow, the inside of the spiral case 1 is hollow and is communicated with the air outlet pipe 12, the impeller 13 is rotatably installed inside the spiral case 1 through a bearing piece, an opening is formed in the side wall of the spiral case 1, which is not provided with the air inlet 11, the motor 14 is positioned outside the side surface of the spiral case 1, a power shaft of the motor 14 penetrates through the opening and is connected with the impeller 13, the motor 14 can be selected as a gear motor 14, a servo motor 14 and the like according to requirements, the impeller 13 rotates to drive air outside the spiral case 1 to enter the spiral case 1 from the air inlet 11, and then the air is pressed to the inner wall of the spiral case 1 under the action of rotation of the impeller 13 and finally is discharged from the air outlet pipe 12 of the spiral case 1.

The cooling cover 2 is a circular cover body structure with a groove on the inner wall, an opening groove for the air outlet pipe 12 to pass through is formed in the surface of the circular cover body structure, and the cooling cover 2 is fixedly sleeved outside the volute 1 to form a cooling cavity outside the volute 1. Specifically, the cooling cover 2 is a circular ring structure adapting to the external shape of the spiral case 1, the inner wall of the cooling cover 2 is provided with a groove, the groove extends into a ring along the circumferential direction on the inner wall of the cooling cover 2, an open slot for the air outlet pipe 12 to pass through is further formed in the cooling cover 2, the cooling cover 2 is fixedly sleeved outside the spiral case 1, the inner wall of the cooling cover 2 is fixedly attached to the outer side of the spiral case 1, at the moment, the groove is abutted with the outer wall of the spiral case 1 to form a cooling cavity, the cooling cavity is a cavity positioned outside the spiral case 1, the air outlet pipe 12 passes through the open slot, and the outer wall of the air outlet pipe is fixedly connected with the notch of the open slot to ensure that the cooling cavity is in a sealing state.

The bottom surface of liquid case 3 has seted up down interface groove 31, and lower interface groove 31 passes through the air-out pipe 12 intercommunication of guide cylinder and spiral case 1, and upper interface groove 32 has been seted up to the upper surface of liquid case 3, still wear to be equipped with a plurality of pipes in the liquid case 3, the both ends of pipe respectively with upper interface groove 32 and lower interface groove 31 rigid coupling in order to communicate upper interface groove 32 and lower interface groove 31. Specifically, the liquid tank 3 is used for placing water or other types of cooling liquid, the plurality of guide pipes are used for communicating the upper interface groove 32 with the lower interface groove 31, the lower interface groove 31 on the bottom surface of the liquid tank 3 is communicated with the air outlet pipe 12 of the volute 1 through the guide cylinder, the air discharged from the air outlet pipe 12 of the volute 1 enters into the lower interface groove 31 under the guide of the guide cylinder, and is discharged after entering into the upper interface groove 32 through the plurality of guide pipes, and the air is taken away by the heat of the cooling liquid in the cooling tank when passing through the plurality of guide pipes, so that the cooling of the cooling liquid in the liquid tank 3 is realized.

The liquid delivery pump 4 is communicated with the bottom end of the liquid tank 3 and the top end of the cooling cover 2 for pumping the cooling liquid in the liquid tank 3 into the cooling cavity, and the top end of the liquid tank 3 and the bottom end of the cooling cover 2 are also communicated through a liquid return pipe 41. Specifically, the purpose of the liquid delivery pump 4 is to pump the cooling liquid in the liquid tank 3 into the cooling cavity, so that the cooling liquid flows through the outer wall of the volute 1, the volute 1 is cooled, the liquid delivery pump 4 is communicated with the bottom end of the liquid tank 3 to ensure that the liquid is pumped stably, and the liquid delivery pump 4 is communicated with the top end of the cooling cover 2 to ensure that the cooling liquid can fully flow through the outside of the volute 1; the liquid return pipe 41 is communicated with the top end of the liquid tank 3 and the bottom end of the cooling cover 2, and is matched with the liquid delivery pump 4 to enable the cooling liquid in the cooling cavity to quickly flow back into the liquid tank 3.

The use principle of the centrifugal fan with the heat dissipation and cooling functions in the embodiment is as follows: during the running process of the centrifugal fan, the motor 14 drives the impeller 13 to rotate, so that air enters from the air inlet 11 of the volute 1 and finally is discharged from the air outlet pipe 12, and the high-speed flow of the air in the volute 1 can cause the volute 1 to generate heat. The liquid delivery pump 4 works to drive the cooling liquid in the cooling box to continuously pour outside the volute 1, the outer shell is cooled, the cooling liquid poured outside the volute 1 finally flows back to the liquid box 3 through the liquid return pipe 41, meanwhile, the air discharged from the air outlet pipe 12 passes through the inside of the liquid box 3 under the guidance of the guide cylinder, the inside of the liquid box 3 is cooled, the liquid in the cooling box is prevented from being overheated, and the air is in the volute 1 and the guide cylinder.

Example 2

On the basis of embodiment 1, a centrifugal fan with heat dissipation cooling function still includes equipment rack, and spiral case 1, cooling cover 2, liquid case 3 and liquid delivery pump 4 all install on the equipment rack, and the upper surface of cooling case is less than the lower limb of cooling cover 2, and the purpose of design like this is when equipment stops working, makes the coolant liquid in the cooling chamber can fully flow back in the liquid case 3 by gravity.

In some embodiments, a hood is further arranged above the liquid tank 3, the bottom end of the hood is communicated with the upper interface groove 32, the top end of the hood is provided with a ventilating duct, and the motor 14 is arranged on the equipment rack through a rack and is positioned in the hood. Specifically, the exhaust hood can be used for discharging air from the upper interface groove 32 into the exhaust barrel, so that the air discharged by the centrifugal fan is conveniently led out, the motor 14 is positioned in the exhaust hood, and the motor 14 can be cooled to a certain extent by the air in the exhaust hood, so that the motor 14 is prevented from being overheated due to long-time high-load operation.

In some embodiments, the lower interface groove 31 is in a shape of a truncated cone or a truncated pyramid, when the air duct is a square cylinder, the lower interface groove 31 is in a shape of a truncated pyramid suitable for communicating with the square cylinder, and when the air duct is a cylinder, the lower interface groove 31 is in a shape of a truncated cone suitable for communicating with the cylinder.

In some embodiments, the bottom of the cooling cover 2 is provided with a three-way joint 21, the liquid return pipe 41 is communicated with the bottom end of the cooling cover 2 through the three-way joint 21, and a drain valve is installed at a third end of the three-way joint 21. The first end of three way connection 21 communicates with cooling cover 2 bottom, and the second end of three way connection 21 communicates with liquid return pipe 41, and the blowoff valve is installed to three way connection 21's third end, is convenient for discharge the coolant liquid or the impurity in the cooling chamber. Further, the three-way joint 21 is a T-shaped joint, and the first end connected with the bottom end of the cooling cover 2 and the third section provided with the blow-down valve are vertical. In order to facilitate the replacement of the cooling liquid, the cooling tank is also provided with a normally closed liquid outlet.

In some embodiments, the surface of the cooling jacket 2 is provided with a one-way gas exchange valve which allows only external air to enter the cooling chamber in order to achieve a suitable pressure condition in the device when the device is initially in use.

The present utility model is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A centrifugal fan with heat dissipation cooling function, its characterized in that: comprising

The spiral case (1), one side of spiral case (1) is provided with air intake (11), the outside rigid coupling of spiral case (1) has air-out pipe (12), impeller (13) is rotatably installed to the inside of spiral case (1), impeller (13) are driven by motor (14) of installing in spiral case (1) outside in order to drive the inside air of spiral case (1) to discharge from air-out pipe (12);

the cooling cover (2) is of a circular cover body structure with a groove on the inner wall, an opening groove for the air outlet pipe (12) to pass through is formed in the surface of the cooling cover (2), and the cooling cover (2) is fixedly sleeved outside the volute (1) to form a cooling cavity outside the volute (1);

the liquid tank (3), the bottom surface of the liquid tank (3) is provided with a lower interface groove (31), the lower interface groove (31) is communicated with an air outlet pipe (12) of the spiral case (1) through a guide cylinder, the upper surface of the liquid tank (3) is provided with an upper interface groove (32), a plurality of guide pipes are also arranged in the liquid tank (3) in a penetrating way, and two ends of each guide pipe are fixedly connected with the upper interface groove (32) and the lower interface groove (31) respectively so as to communicate the upper interface groove (32) with the lower interface groove (31);

the liquid delivery pump (4), liquid delivery pump (4) are in communication with liquid tank (3) bottom and cooling cover (2) top in order to be used for carrying the cooling liquid in liquid tank (3) to the cooling intracavity, liquid return pipe (41) intercommunication is still passed through with the bottom of cooling cover (2) to the top of liquid tank (3).

2. The centrifugal fan with heat dissipation and cooling functions according to claim 1, wherein: still include equipment rack, spiral case (1), cooling cover (2), liquid tank (3) and liquid delivery pump (4) are all installed on the equipment rack, and the upper surface of cooling tank is less than the lower edge of cooling cover (2).

3. The centrifugal fan with heat dissipation and cooling functions according to claim 2, wherein: the liquid tank (3) top is provided with the exhaust hood, and the bottom and the last interface groove (32) intercommunication of exhaust hood, and the exhaust dryer is installed on the top of exhaust hood, motor (14) are installed on the equipment rack through the frame and are located the exhaust hood.

4. The centrifugal fan with heat dissipation and cooling functions according to claim 1, wherein: the lower interface groove (31) is in a truncated cone shape or a quadrangular frustum shape.

5. The centrifugal fan with heat dissipation and cooling functions according to claim 1, wherein: the bottom of cooling cover (2) is provided with three way connection (21), and return liquid pipe (41) are through three way connection (21) and the bottom intercommunication of cooling cover (2), the blowoff valve is installed to the third end of three way connection (21).

6. The centrifugal fan with heat dissipation and cooling functions according to claim 5, wherein: the three-way joint (21) is a T-shaped joint.

7. The centrifugal fan with heat dissipation and cooling functions according to claim 1, wherein: the surface of the cooling cover (2) is provided with a one-way scavenging valve.