Cooling device for a bearing housing of a multistage centrifugal fan

Abstract

This utility model relates to the technical field of cooling for multi-stage centrifugal fan bearing housings, and particularly to a cooling device for multi-stage centrifugal fan bearing housings. It effectively improves the cooling effect on the bearing housing, enabling it to achieve effective cooling and temperature reduction, thus enhancing its practicality. The device includes a bearing housing with supports fixed on both sides of its bottom. A cooling sleeve is fixedly fitted onto the outer wall of the bearing housing. The cooling sleeve has a spiral cooling water channel inside. An inlet is located on the left side of the top of the cooling sleeve, communicating with the spiral cooling water channel. Water pipe interfaces are fixedly connected to both the inlet and outlet. Limiting rings are fixedly fitted onto the outer walls of both sets of water pipe interfaces. Both sets of water pipe interfaces have mating threads. Multiple sets of heat dissipation fins are fixedly connected annularly at equal intervals on the outer wall of the cooling sleeve, avoiding the water pipe interfaces. Reinforcing rings are fixedly connected to the front and rear ends of the multiple sets of heat dissipation fins, and these reinforcing rings are fixedly fitted onto the cooling sleeve.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling for bearing housings of multi-stage centrifugal fans, and in particular to a cooling device for bearing housings of multi-stage centrifugal fans. Background Technology

[0002] The multistage centrifugal fan is a multistage, single-inlet, double-support structure, consisting of a rotor, casing, air inlet, air outlet, bearing housing, sealing assembly, silencer, motor, control system, etc. The motor and blower are mounted on the base and are directly driven by a coupling.

[0003] The bearing housing is an important component in a multi-stage centrifugal fan, serving to support and lubricate the bearings. When the centrifugal fan is running, the temperature inside the bearing housing will rise due to bearing friction. The high temperature will affect the operation and life of the bearings, so the bearing housing needs to be cooled.

[0004] Existing cooling devices are ineffective at cooling the bearing housing and lack practicality. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cooling device for a multi-stage centrifugal fan bearing housing that can effectively improve the cooling effect on the bearing housing, thereby improving the practicality of the bearing housing.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a multi-stage centrifugal fan bearing housing, comprising a bearing housing and a cooling assembly. Supports are fixed on both sides of the bottom of the bearing housing. The cooling assembly includes a cooling sleeve, which is fixedly fitted onto the outer wall of the bearing housing. A spiral cooling water channel is provided inside the cooling sleeve. An inlet is located on the left side of the top of the cooling sleeve, communicating with the spiral cooling water channel. An outlet is located on the right side of the outer wall of the cooling sleeve, communicating with the spiral cooling water channel. Water pipe interfaces are fixedly connected to both the inlet and outlet. Limiting rings are fixedly fitted onto the outer walls of both sets of water pipe interfaces. Connecting threads are provided on the outer walls of both sets of water pipe interfaces. Multiple sets of heat dissipation fins are fixedly connected annularly at equal intervals on the outer wall of the cooling sleeve, with the heat dissipation fins avoiding the water pipe interfaces. Reinforcing rings are fixedly connected to the front and rear ends of the multiple sets of heat dissipation fins, and the reinforcing rings are fixedly fitted onto the cooling sleeve.

[0008] Preferably, two sets of reinforcing rings are fixedly sleeved on the outer wall of the cooling sleeve, and the two sets of reinforcing rings are respectively fixedly connected to the front and rear ends of multiple sets of heat dissipation fins.

[0009] Preferably, both sets of limiting rings are fixedly connected with fastening pads, and the fastening pads are fitted onto the water pipe interface.

[0010] Preferably, the cooling sleeve is fixedly connected to the outer wall of the bearing housing at equal intervals in a ring at both the front and rear ends.

[0011] Preferably, the heat dissipation fins are made of copper alloy.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, water pipes are connected to two sets of water pipe interfaces by means of threaded connection through mating threads, with one water pipe for inlet and the other for outlet. Water is supplied by a water pump, allowing cooling water to be transported through the water pipes and enter the spiral cooling water channel from the inlet. The cooling water flows spirally through the spiral cooling water channel and then flows out through the outlet and is discharged through the water pipe. The spiral winding of the spiral cooling water channel prolongs the flow time of the cooling water in the spiral cooling water channel. Through heat conduction, the cooling water carries away the heat generated inside the bearing housing during operation, and the heat dissipation fins further conduct heat in the cooling sleeve, making the heat dissipation easier and achieving cooling and temperature reduction of the bearing housing. This effectively improves the cooling effect of the bearing housing, making the bearing housing effectively cooled and temperature reduced, and improving its practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the isometric cross-sectional structure of the cooling sleeve in this utility model;

[0015] Figure 3 This is an isometric structural diagram of the connection between the heat dissipation fins and the reinforcing ring in this utility model;

[0016] Figure 4 This is an isometric structural diagram of the water pipe interface in this utility model;

[0017] Figure 5 This is an isometric perspective view of the connection between 03 and 05 in this utility model;

[0018] The following are labels in the attached diagram: 1. Bearing housing; 2. Support; 3. Cooling sleeve; 4. Spiral cooling water channel; 5. Water pipe interface; 6. Limiting ring; 7. Butt thread; 8. Heat dissipation fins; 9. Reinforcing ring; 10. Fastening pad; 11. Rib plate; 12. Water inlet; 13. Water outlet. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] Example

[0021] Please see Figures 1-5 The present invention relates to a cooling device for a multi-stage centrifugal fan bearing housing, comprising a bearing housing 1 and a cooling sleeve 3. Supports 2 are fixedly mounted on both sides of the bottom of the bearing housing 1. The cooling sleeve 3 is fixedly fitted onto the outer wall of the bearing housing 1. A spiral cooling water channel 4 is provided inside the cooling sleeve 3. An inlet 12, connected to the spiral cooling water channel 4, is located at the center of the left side of the top of the cooling sleeve 3. An outlet 13, connected to the spiral cooling water channel 4, is located at the center of the right side of the outer wall of the cooling sleeve 3. Water pipe interfaces 5 are fixedly connected to both the inlet 12 and the outlet 13. Limiting rings 6 are fixedly fitted onto the outer walls of both sets of water pipe interfaces 5. Connecting threads 7 are provided on the outer walls of both sets of water pipe interfaces 5. Multiple sets of heat dissipation fins 8 are fixedly connected annularly at equal intervals on the outer wall of the cooling sleeve 3, with the heat dissipation fins 8 avoiding the water pipe interfaces 5. Reinforcing rings 9 are fixedly connected to the front and rear ends of the multiple sets of heat dissipation fins 8. The reinforcing rings 9 are fixedly fitted onto the... On the cooling sleeve 3; in use, water pipes are connected to the two sets of water pipe interfaces 5 by means of threaded connection through the mating thread 7, with one water pipe for water inlet and the other for water outlet, and water is supplied by a water pump, so that the cooling water is transported through the water pipes and enters the spiral cooling water channel 4 through the water inlet 12. The cooling water flows spirally through the spiral cooling water channel 4, and then flows out through the water outlet 13 and is discharged through the water pipe. Through the spiral winding of the spiral cooling water channel 4, the flow time of the cooling water in the spiral cooling water channel 4 is extended. Through heat conduction, the cooling water carries away the heat generated in the bearing housing 1 during operation, and the heat in the cooling sleeve 3 is further conducted through the heat dissipation fins 8, so that the heat is more easily dissipated, thereby achieving cooling and cooling of the bearing housing 1, thus effectively improving the cooling effect of the bearing housing, making the bearing housing effectively cooled and cooled, and improving its practicality.

[0022] Two sets of reinforcing rings 9 are fixedly sleeved on the outer wall of the cooling sleeve 3, and the two sets of reinforcing rings 9 are respectively fixedly connected to the front and rear ends of multiple sets of heat dissipation fins 8. By setting the reinforcing rings 9, the connection strength of the heat dissipation fins 8 can be effectively strengthened, making the heat dissipation fins 8 less likely to break and fall off.

[0023] Both sets of limiting rings 6 are fixedly connected with fastening pads 10, and the fastening pads 10 are fitted onto the water pipe interface 5; by setting the fastening pads 10, the water pipes can be connected more tightly and reliably.

[0024] The cooling sleeve 3 is fixedly connected to the outer wall of the bearing housing 1 at equal intervals in a ring at both ends. By setting the ribs 11, the connection between the cooling sleeve 3 and the bearing housing 1 can be made more firm and reliable.

[0025] The heat dissipation fins 8 are made of copper alloy material; by using copper alloy material, the thermal conductivity of the heat dissipation fins 8 can be improved, making it easier for heat to dissipate.

[0026] The cooling device for the multi-stage centrifugal fan bearing housing of this utility model works as follows: During use, water pipes are connected to two sets of water pipe interfaces 5 via threaded connections using the mating threads 7. One water pipe is for inlet water, and the other is for outlet water. Water is supplied by a water pump, allowing cooling water to be transported through the water pipes and enter the spiral cooling water channel 4 through the inlet 12. The cooling water flows spirally through the spiral cooling water channel 4, then flows out through the outlet 13 and is discharged through the water pipe. The spiral winding of the spiral cooling water channel 4 prolongs the flow time of the cooling water within it. Through heat conduction, the cooling water carries away the heat generated inside the bearing housing 1 during operation. Furthermore, the heat is further conducted through the heat dissipation fins 8 to the cooling sleeve 3, making heat dissipation easier and achieving cooling and temperature reduction of the bearing housing 1.

[0027] The cooling device for the multi-stage centrifugal fan bearing housing of this utility model can be installed, connected, or set in a common mechanical manner, and can be implemented as long as it can achieve its beneficial effect.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cooling device for a bearing housing of a multi-stage centrifugal fan, comprising a bearing housing (1), wherein supports (2) are fixed on both sides of the bottom of the bearing housing (1), characterized in that, It also includes cooling components; The cooling assembly includes a cooling sleeve (3), which is fixedly mounted on the outer wall of the bearing housing (1). The cooling sleeve (3) has a spiral cooling water channel (4) inside. An inlet (12) is located on the left side of the top of the cooling sleeve (3) and communicates with the spiral cooling water channel (4). An outlet (13) is located on the right side of the outer wall of the cooling sleeve (3) and communicates with the spiral cooling water channel (4). The inlet (12) and outlet (13) are... Both sets of water pipe interfaces (5) are fixedly connected. Limiting rings (6) are fixedly fitted on the outer walls of both sets of water pipe interfaces (5). Connecting threads (7) are provided on the outer walls of both sets of water pipe interfaces (5). Multiple sets of heat dissipation fins (8) are fixedly connected in annularly at equal intervals on the outer wall of the cooling sleeve (3). The heat dissipation fins (8) avoid the water pipe interfaces (5). Reinforcing rings (9) are fixedly connected to the front and rear ends of the multiple sets of heat dissipation fins (8). The reinforcing rings (9) are fixedly fitted on the cooling sleeve (3).

2. The cooling device for the bearing housing of a multi-stage centrifugal fan as described in claim 1, characterized in that, Two sets of reinforcing rings (9) are fixedly sleeved on the outer wall of the cooling sleeve (3), and the two sets of reinforcing rings (9) are fixedly connected to the front and rear ends of multiple sets of heat dissipation fins (8).

3. The cooling device for the bearing housing of a multi-stage centrifugal fan as described in claim 2, characterized in that, Both sets of limiting rings (6) are fixedly connected with fastening pads (10), and the fastening pads (10) are fitted onto the water pipe interface (5).

4. The cooling device for the multi-stage centrifugal fan bearing housing as described in claim 3, characterized in that, The cooling sleeve (3) is fixedly connected to the outer wall of the bearing housing (1) at both ends of the front and rear ends with three sets of stiffening plates (11) at equal intervals in a ring.

5. The cooling device for the bearing housing of a multi-stage centrifugal fan as described in claim 4, characterized in that, The heat dissipation fins (8) are made of copper alloy.

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