Cooling structure and vacuum pump
By setting up a spiral cooling pipeline in the vacuum pump body, the problem of insufficient cooling performance of the vacuum pump is solved, more efficient heat export and heat dissipation are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420646224.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The cooling performance of existing vacuum pumps is insufficient, resulting in the accumulation of internal heat, which may lead to problems such as degradation of bearing performance, abnormal noise, ablation, etc., and even the whole machine is scrapped.
Adopt a spiral cooling pipeline structure, which is arranged in the vacuum pump body, and is connected to the external water source through the first end pipe and the second end pipe, which improves the heat dissipation area and cooling performance of the pump body plane, and penetrates deep into the pump body to more effectively derive heat. .
It improves the cooling performance of the vacuum pump, extends the stable operation time of the equipment, and avoids failures caused by heat accumulation.
Smart Images
Figure CN222185054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power equipment, in particular to a cooling structure and a vacuum pump. Background Art
[0002] As a type of pump body, vacuum pumps are widely used in many fields. The cooling performance of the vacuum pump is the basis for improving the overall performance of the vacuum pump and is also the guarantee for the long-term stable operation of the vacuum pump. If the cooling capacity is insufficient, it may cause heat accumulation inside the vacuum pump and abnormal temperature rise, which will lead to deterioration of bearing performance, abnormal noise, ablation and other problems, and may even cause the entire machine to be scrapped.
[0003] At present, conventional vacuum pumps are mainly cooled by water-cooling pipes, but some conventional water-cooling pipes are installed on the outside of the pump body, with poor cooling performance, making it difficult to export the internal heat of the vacuum pump. There are still some water-cooling pipes buried in the vacuum pump in the prior art, but they are mainly single cylindrical coil-shaped water-cooling pipes, and the effect of exporting the internal heat of the vacuum pump is still poor, making it difficult to meet the cooling needs. Utility Model Content
[0004] In view of this, the utility model provides a cooling structure and a vacuum pump to solve the problem of poor cooling performance of the vacuum pump.
[0005] In the first aspect, the utility model provides a cooling structure suitable for a pump body, comprising at least one cooling pipeline, wherein the cooling pipeline is arranged in the pump body, and the cooling pipeline comprises: a pipeline body, which is spirally arranged in the same plane; a first end pipe, one end of which is connected to the outer end of the pipeline body, and the other end of which is provided with a first end head; a second end pipe, one end of which is connected to the inner end of the pipeline body, and the other end of which is provided with a second end head, one of the first end head and the second end head is suitable for connecting to an external water source and passing cooling water, and the other of the first end head and the second end head is suitable for discharging cooling water.
[0006] Beneficial effects:
[0007] The pipeline body is spiral in the same plane, and the inner end of the spiral pipeline body can extend into the inner side of the structure surrounded by itself. At the same time, compared with single-layer structures such as rings, the spiral pipeline body occupies a larger area in the plane. The pipeline body is arranged in the pump body as a part of the cooling pipeline, and cooling water is passed through the first end pipe or the second end pipe. This arrangement combined with the structure of the pipeline body, on the one hand, increases the heat dissipation area of the pump body plane where the pipeline body is located, and improves the cooling performance of the vacuum pump. On the other hand, the structure of the pipeline body goes deep into the interior of the pump body plane, which is convenient for extracting the heat deep inside the pump body, further improving the cooling performance of the vacuum pump.
[0008] In an optional embodiment, the second end is a water inlet end, suitable for connecting to an external water source and introducing cooling water, and the first end is a water outlet end, suitable for discharging cooling water.
[0009] In an optional embodiment, the second end is a water inlet end, suitable for connecting to an external water source and introducing cooling water, and the second end is a water outlet end, suitable for discharging cooling water.
[0010] In an optional embodiment, the first end tube is coplanar with the pipeline body; and / or the second end tube includes an arc portion and an end tube body that are connected to each other, the arc portion is connected to the inner end of the pipeline body, the end tube body is arranged in a different plane from the pipeline body, and the second end head arranged on the end tube body is projected to the plane where the pipeline body is located, and is projected onto the outside of the pipeline body.
[0011] In an optional embodiment, the end pipe body is adjacent to the pipeline body, and the end pipe body is arranged in parallel with the plane where the pipeline body is located.
[0012] In an optional embodiment, the pipeline body is arranged around the shaft body assembly inside the pump body.
[0013] In an optional embodiment, the spacing between adjacent pipe bodies in the spirally arranged pipeline body is equidistant.
[0014] In an optional embodiment, the first end head and / or the second end head is provided with a threaded portion therein, and the port thereof is non-circular and is arranged flush with the outer wall of the pump body.
[0015] In an optional implementation, the cooling pipeline is embedded in the pump body and is cast and connected.
[0016] In an optional embodiment, a plurality of cooling pipelines are spaced apart from each other and stacked in the pump body.
[0017] On the other hand, the utility model also provides a vacuum pump, comprising the above cooling structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the cooling structure of an embodiment of the utility model;
[0020] Figure 2 for Figure 1 A side view of the cooling structure shown;
[0021] Figure 3 for Figure 1 The schematic diagram of the internal structure of the pump body when the cooling structure is arranged in the pump body;
[0022] Figure 4 for Figure 3 The schematic diagram of the external structure of the pump body when the cooling structure is arranged in the pump body;
[0023] Description of reference numerals:
[0024] 1. Pipeline body; 2. First end pipe; 21. First terminal; 3. Second end pipe; 31. Second terminal; 32. Curved portion; 33. End pipe body; 4. Threaded portion; 5. Pump body; 51. Shaft assembly. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0026] like Figure 1-Figure 4 In the first aspect, the utility model provides a cooling structure, which is applicable to a pump body 5. The pump body 5 in this embodiment refers to a vacuum pump, and can also be other types of pump bodies 5 that generate heat internally and have cooling requirements, such as a circulating pump. The cooling structure includes at least one cooling pipeline, which is arranged inside the pump body 5. The number of cooling pipelines can be set according to the needs of the pump body 5. Figure 1-Figure 4 A cooling circuit is provided in the cooling structure shown.
[0027] The cooling pipeline comprises: a pipeline body 1 , a first end pipe 2 and a second end pipe 3 .
[0028] The pipeline body 1 is arranged in a spiral in the same plane. The pipeline body 1 is preferably a single tube, which has a simple structure and is easy to implement. As a convertible implementation, it can also be a double tube or multiple tubes. In addition, the specific form of the spiral is not limited, as long as it extends inward. The spiral is preferably an Archimedean spiral, or a logarithmic spiral or other forms of spiral. The spiral direction is specifically counterclockwise. As a convertible implementation, it can also be clockwise. The same plane refers to the thickness of the pipeline body 1 along its own central axis direction being approximately equal to its own pipeline outer diameter, that is, the difference is within the preset variance range.
[0029] The first end tube 2 is specifically a single tube, one end of which is connected to the outer end of the pipeline body 1, and the other end is provided with a first terminal 21. As a convertible embodiment, the type of the first end tube 2 is set according to the type of the pipeline body 1, and can be a double tube or multiple tubes.
[0030] The second end tube 3 is specifically a single tube, one end of which is connected to the inner end of the pipeline body 1, and the other end of which is provided with a second terminal 31. As a convertible embodiment, the type of the second end tube 3 is correspondingly provided according to the type of the pipeline body 1, and can be a double tube or a multi-tube. In addition, the outer end of the pipeline body 1 refers to the outermost end of the spiral of the pipeline body 1, and the inner end of the pipeline body 1 refers to the innermost end of the spiral of the pipeline body 1.
[0031] One of the first end 21 and the second end 31 is suitable for connecting to an external water source and introducing cooling water, and the other of the first end 21 and the second end 31 is suitable for discharging cooling water. The cooling water can also be equivalently replaced by other cooling liquids or cooling airflow.
[0032] The pipeline body 1 is spiral in the same plane, and the inner end of the spiral pipeline body 1 can extend into the inner side of the structure surrounded by itself. At the same time, compared with single-layer structures such as rings, the spiral pipeline body 1 occupies a larger area in the plane. The pipeline body 1 is arranged in the pump body 5 as a part of the cooling pipeline, and cooling water is passed through the first end pipe 2 or the second end pipe 3. This arrangement combined with the structure of the pipeline body 1, on the one hand, increases the heat dissipation area of the pump body 5 plane where the pipeline body 1 is located, and improves the cooling performance of the vacuum pump. On the other hand, the structure of the pipeline body 1 goes deep into the interior of the pump body 5 plane, which is convenient for extracting the heat deep inside the pump body 5, further improving the cooling performance of the vacuum pump.
[0033] In this embodiment, the second end 31 is a water inlet, used to connect to an external water source and introduce cooling water, and the first end 21 is a water outlet, suitable for discharging cooling water. This arrangement allows the cooling water to flow from the inside to the outside along the pipeline body 1, which is convenient for effectively removing the heat inside the pump body 5. As a convertible embodiment, the first end 21 can also be a water inlet, and the second end 31 can also be a water outlet.
[0034] In an optional embodiment, the first end tube 2 is coplanar with the pipeline main body 1, and the second end tube 3 includes a curved portion 32 and an end tube main body 33 connected to each other, wherein the curved portion 32 is in a curved tube shape and communicates with the inner end of the pipeline main body 1, the end tube main body 33 is not in the same plane as the pipeline main body 1, and the second end head 31 provided on the end tube main body 33 is projected to the plane where the pipeline main body 1 is located, and is projected on the outside of the pipeline main body 1. This arrangement allows the second end tube 3 to be led out from the inner position of the pipeline main body 1, so as to facilitate water passing or drainage operations through the second end head 31 of the second end tube 3.
[0035] Preferably, the end pipe body 33 is adjacent to the pipeline body 1, and the end pipe body 33 is parallel to the plane where the pipeline body 1 is located. This arrangement can reduce the thickness and space volume of the cooling pipeline structure itself, avoid interference with other structures in the pump body 5, and facilitate the installation of the cooling pipeline.
[0036] In this embodiment, the pipeline body 1 surrounds the shaft assembly 51 inside the pump body 5. Specifically, the shaft assembly 51 is the main heat source inside the pump body 5 and the target structure to be cooled. The shaft assembly 51 includes a main shaft and bearings around the main shaft, and the pipeline body 1 surrounds the outside of the bearing. This arrangement makes the inner end of the pipeline body 1 closer to the heat source inside the pump body 5, which is convenient for effectively taking out the heat from the heat source inside the pump body 5 and improving the cooling efficiency.
[0037] As a convertible embodiment, the pipeline body 1 can be arranged around other heat sources inside the pump body 5, such as a motor.
[0038] Preferably, the spacing between adjacent tubes in the spirally arranged pipeline main body 1 is equidistant. When the pump body 5 is a vacuum pump or the like, in addition to the shaft assembly 51, other heat sources are correspondingly arranged in the pump body 5, or other heat sources are arranged at adjacent positions of the pump body 5. The spacing between adjacent tubes in the pipeline main body 1 is equidistantly arranged, which can improve the application range of the cooling pipeline and distribute it as evenly as possible, so as to facilitate the synchronous heat dissipation of other heat sources and avoid heat concentration.
[0039] As a convertible implementation, the distance between adjacent pipes in the pipeline main body 1 can be gradually increased from the inside to the outside.
[0040] The first terminal 21 and the second terminal 31 are both provided with a threaded portion 4, which is specifically an internal thread, so as to be connected to an external water nozzle. The threaded portion 4 can also be changed as an external thread on the outer wall of each terminal. The ports of the first terminal 21 and the second terminal 31 are both non-circular, and can be square heads, star heads, etc., and are square flat heads in this embodiment. The terminals arranged in this way are convenient to be fixed inside the pump body 5 to prevent rotation and movement. In addition, the ports of the first terminal 21 and the second terminal 31 are both exposed to the pump body 5, and the ports are flush with the outer wall of the pump body 5.
[0041] As a convertible embodiment, the first terminal 21 and the second terminal 31 may be arranged on only one of the first terminal 21 and the second terminal 31 .
[0042] In this embodiment, the cooling pipeline is embedded in the inner wall of the pump body 5, and the two are connected by casting. Specifically, the casting connection means: the cooling pipeline is embedded in the casting process of the pump body 5, and then formed together to achieve mutual connection. Furthermore, the cooling pipeline can be made of stainless steel or metal copper or copper alloy, and the casting method is preferably low-pressure casting, and can also be high-pressure or gravity casting.
[0043] In an optional embodiment, the cooling structure includes two or more cooling pipelines, each of which is stacked in the same axial direction in the pump body 5, and the cooling pipelines of adjacent layers are spaced apart from each other. This arrangement can increase the coverage of the cooling structure and improve the overall performance of the cooling structure.
[0044] In addition, the utility model also provides a vacuum pump, comprising the above cooling structure.
[0045] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A cooling structure, suitable for a pump body (5), It is characterized in that The pump comprises at least one cooling pipeline, wherein the cooling pipeline is arranged in the pump body (5), and the cooling pipeline comprises: The pipeline body (1) is arranged in a spiral shape in the same plane; A first end pipe (2), one end of which is in communication with the outer end of the pipeline body (1), and the other end of which is provided with a first end cap (21); A second end pipe (3) has one end connected to the inner end of the pipeline body (1), and the other end is provided with a second end head (31), one of the first end head (21) and the second end head (31) is suitable for connecting to an external water source and introducing cooling water, and the other of the first end head (21) and the second end head (31) is suitable for discharging cooling water.
2. The cooling structure according to claim 1, It is characterized in that The second end (31) is a water inlet end, suitable for connecting to an external water source and introducing cooling water, and the first end (21) is a water outlet end, suitable for discharging cooling water.
3. The cooling structure according to claim 1, It is characterized in that The first end pipe (2) is coplanar with the pipeline body (1); and / or, The second end tube (3) comprises an arc portion (32) and an end tube body (33) which are connected to each other, the arc portion (32) being in communication with the inner end of the pipeline body (1), the end tube body (33) being arranged on a different plane from the pipeline body (1), and the second end head (31) arranged on the end tube body (33) being projected onto the plane where the pipeline body (1) is located and onto the outer side of the pipeline body (1).
4. The cooling structure according to claim 3, It is characterized in that The end pipe body (33) is adjacent to the pipeline body (1), and the end pipe body (33) is arranged in parallel with the plane where the pipeline body (1) is located.
5. The cooling structure according to any one of claims 1 to 4, It is characterized in that The pipeline body (1) is arranged around the shaft assembly (51) inside the pump body (5).
6. The cooling structure according to any one of claims 1 to 4, It is characterized in that The spacing between adjacent pipe bodies in the spirally arranged pipe main body (1) is equidistant.
7. The cooling structure according to any one of claims 1 to 4, It is characterized in that The first end head (21) and / or the second end head (31) are provided with a threaded portion (4) therein, and the port thereof is non-circular and is arranged flush with the outer wall of the pump body (5).
8. The cooling structure according to any one of claims 1 to 4, It is characterized in that The cooling pipeline is embedded in the pump body (5) and is cast and connected.
9. The cooling structure according to any one of claims 1 to 4, It is characterized in that The plurality of cooling pipelines are spaced apart from each other and are stacked in the pump body (5).
10. A vacuum pump, It is characterized in that The cooling structure comprises the cooling structure according to any one of claims 1 to 9.