CN220396101U - Energy-saving magnetic suspension turbine vacuum pump - Google Patents

Abstract

The utility model relates to an energy-saving magnetic suspension turbine vacuum pump, which comprises a shell, a stator, a rotor assembly and a heat dissipation assembly, wherein the shell is provided with a plurality of air inlet holes, and the stator is arranged in the shell; the rotor assembly comprises a rotating shaft and a thrust disc connected with the rotating shaft, the rotating shaft is rotationally connected with the shell, the rotating shaft penetrates through the stator, and an air channel is formed between the rotating shaft and the stator; the heat radiation assembly comprises a heat radiation fan and a heat radiation cover, wherein the heat radiation fan is arranged at one end of the rotating shaft far away from the thrust disc, the heat radiation cover is arranged at one end of the casing, the heat radiation cover is communicated with the casing, the heat radiation cover is provided with a heat radiation fan, and the heat radiation cover is provided with an air outlet, an air inlet hole, an air channel and the air outlet form a heat radiation channel. The energy-saving magnetic suspension turbine vacuum pump enables external air flow to sequentially flow through the air inlet, the air duct and the air outlet through rotation of the heat dissipation fan, so that heat generated in the use process of the stator, the rotating shaft and the thrust disc is taken away; the energy-saving magnetic suspension turbine vacuum pump has the advantages of compact structure, convenient use and high heat dissipation efficiency.

Description

Energy-saving magnetic suspension turbine vacuum pump

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to an energy-saving magnetic suspension turbine vacuum pump.

Background

Along with the development of society and industry, the vacuum application technology is widely applied to the fields of petroleum, chemical industry, papermaking, medicine, food, and the like, and the traditional vacuum pump products widely applied in the market at present mainly comprise liquid ring type vacuum pumps, rotary vane type vacuum pumps, reciprocating type vacuum pumps, roots vacuum pumps, and the like. The positive displacement vacuum pump has the defects of low efficiency, high energy consumption, high noise, small pumping quantity and the like. With the progress of industrial technology, there is an increasing demand for high-flow, high-vacuum turbomachinery.

The magnetic suspension turbine vacuum pump has the advantages of no mechanical contact, no friction, low noise, low vibration, high efficiency, energy saving and the like, is applied to the market at present, and gradually replaces the vacuum pump product with the traditional structure. At present, the magnetic suspension turbine vacuum pump needs external cooling water to cool the motor and the whole system when in operation, and the external cooling water is generally directly connected into a water heat exchanger of the turbine vacuum pump in use, so that the magnetic suspension turbine vacuum pump has a complex structure and is inconvenient to use.

Disclosure of Invention

Based on the above, it is necessary to provide an energy-saving magnetic suspension turbine vacuum pump with compact structure and convenient use.

The energy-saving magnetic suspension turbine vacuum pump comprises a shell, a stator, a rotor assembly and a heat dissipation assembly, wherein the shell is provided with a plurality of air inlet holes, and the stator is arranged in the shell; the rotor assembly comprises a rotating shaft and a thrust disc connected with the rotating shaft, the rotating shaft is rotationally connected with the machine shell, the rotating shaft penetrates through the stator, and an air channel is formed between the rotating shaft and the stator; the heat dissipation assembly comprises a heat dissipation fan and a heat dissipation cover, the heat dissipation fan is installed at one end of the rotating shaft, which is far away from the thrust disc, the heat dissipation cover is installed at one end of the casing, the heat dissipation cover is communicated with the casing, the heat dissipation fan is arranged on the heat dissipation cover, the heat dissipation cover is provided with an air outlet, and the air inlet, the air duct and the air outlet form a heat dissipation channel.

In one embodiment, the heat dissipation assembly further comprises a heat conduction member, and the heat conduction member is sleeved on the stator; one end of the heat conducting piece is abutted against the stator, and the other end is abutted against the shell.

In one embodiment, the heat conducting member includes a base portion and a fin portion, the base portion abuts against an outer side of the stator, the fin portion is plural, each fin portion is disposed at intervals along a circumferential direction of the base portion, and a gap exists between the fin portion and an inner side of the housing; and a heat dissipation groove is formed between two adjacent fin parts, and the heat dissipation groove is communicated with the air inlet.

In one embodiment, the heat conducting member further comprises a partition plate portion and a supporting portion, wherein one end of the partition plate portion abuts against one end of the base portion, the other end of the partition plate portion abuts against the inner side of the casing, and the partition plate portion closes one end of the heat dissipation groove close to the air outlet; one end of the supporting part is connected with the top of the fin part, and the other end of the supporting part is abutted against the inner side of the shell.

In one embodiment, the magnetic suspension assembly further comprises a first shield, a first thrust bearing, a second thrust bearing and a first magnetic suspension bearing, wherein the first shield is installed at one end of the casing, the first thrust bearing and the second thrust bearing are respectively arranged at two sides of the thrust disc, and the first thrust bearing, the second thrust bearing and the first magnetic suspension bearing are all installed in the first shield.

In one embodiment, the device further comprises a volute connected with one end of the first shield far away from the shell; the volute is provided with an air suction port and an air exhaust port, and the air suction port is communicated with an external device; the rotor assembly further comprises an impeller, the impeller is mounted at one end, close to the thrust disc, of the rotating shaft, and the impeller is arranged in the volute.

In one embodiment, the magnetic suspension assembly further comprises a second shield and a second magnetic suspension bearing, wherein the second shield is installed at one end of the casing far away from the first shield, the second magnetic suspension bearing is installed in the second shield, and the heat dissipation cover is installed at one end of the second shield far away from the casing.

In one embodiment, the second shield is provided with a plurality of through holes, each through hole is arranged along the periphery of the second shield, one end of each through hole is communicated with the casing, and the other end of each through hole is communicated with the heat dissipation cover.

In one embodiment, each air inlet is disposed along a circumferential direction of the casing.

In one embodiment, two ends of the stator are arranged in a horn shape.

The energy-saving magnetic suspension turbine vacuum pump enables external air flow to sequentially flow through the air inlet, the air duct and the air outlet through rotation of the heat dissipation fan, so that heat generated in the use process of the stator, the rotating shaft and the thrust disc is taken away; the energy-saving magnetic suspension turbine vacuum pump has the advantages of compact structure, convenient use and high heat dissipation efficiency.

Drawings

FIG. 1 is a schematic diagram of an energy-efficient magnetic levitation turbine vacuum pump according to one embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of the energy efficient magnetic levitation turbine vacuum pump of FIG. 1;

fig. 3 is a partial exploded view of the energy-efficient magnetic levitation turbine vacuum pump of fig. 1.

The meaning of the reference numerals in the drawings are:

100. energy-saving magnetic suspension turbine vacuum pump;

10. a housing; 11. an air inlet hole; 20. a stator; 30. a rotor assembly; 31. a rotating shaft; 310. an air duct; 32. a thrust plate; 33. an impeller; 40. a heat dissipation assembly; 41. a heat dissipation fan; 42. a heat dissipation cover; 420. an air outlet; 43. a heat conductive member; 431. a base portion; 432. a fin section; 433. a heat sink; 434. a partition plate portion; 435. a support part; 50. a magnetic levitation assembly; 51. a first shield; 52. a first thrust bearing; 53. a second thrust bearing; 54. a first magnetic bearing; 55. a second shield; 550. a through hole; 56. the second magnetic bearing; 57. a first support bearing; 58. a second support bearing; 60. a volute; 61. an air suction port; 62. and an air outlet.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

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; can be mechanically or electrically connected; 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.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, an energy-saving magnetic levitation turbine vacuum pump 100 according to an embodiment of the utility model includes a casing 10, a stator 20, a rotor assembly 30 and a heat dissipation assembly 40, wherein the casing 10 is provided with a plurality of air inlet holes 11, the rotor assembly 30 includes a rotating shaft 31 and a thrust disc 32 connected with the rotating shaft 31, and an air duct 310 is formed between the rotating shaft 31 and the stator 20; the heat dissipation assembly 40 comprises a heat dissipation fan 41 and a heat dissipation cover 42, and the heat dissipation cover 42 is provided with an air outlet 420; the energy-saving magnetic suspension turbine vacuum pump 100 rotates through the heat dissipation fan 41, so that external air flows through the air inlet 11, the air duct 310 and the air outlet 420 in sequence, and heat generated in the use process of the stator 20, the rotating shaft 31 and the thrust disc 32 is taken away.

As shown in fig. 1 and 2, in the present embodiment, the casing 10 is provided with a plurality of air inlet holes 11, and optionally, each air inlet hole 11 is disposed along the circumferential direction of the casing 10 so that external air flows into the casing 10; further, the casing 10 is made of a heat conductive metal material.

As shown in fig. 2 and 3, the stator 20 is installed in the casing 10; alternatively, both ends of the stator 20 are provided in a horn shape.

Referring to fig. 2 and 3 again, the rotor assembly 30 includes a rotating shaft 31 and a thrust disk 32 connected to the rotating shaft 31, the rotating shaft 31 is rotatably connected to the housing 10, the rotating shaft 31 penetrates through the stator 20, and an air duct 310 is formed between the rotating shaft 31 and the stator 20 for heat dissipation; the rotor assembly 30 further includes an impeller 33, the impeller 33 being mounted to an end of the shaft 31 adjacent the thrust disc 32.

As shown in fig. 1 to 3, the heat dissipation assembly 40 includes a heat dissipation fan 41 and a heat dissipation cover 42, the heat dissipation fan 41 is mounted at one end of the rotating shaft 31 far away from the thrust disc 32, the heat dissipation cover 42 is mounted at one end of the casing 10, the heat dissipation cover 42 is communicated with the casing 10, the heat dissipation cover 42 covers the heat dissipation fan 41, the heat dissipation cover 42 is provided with an air outlet 420, and the air inlet 11, the air duct 310 and the air outlet 420 form a heat dissipation channel; along with the rotation of the heat dissipation fan 41, the external air flows through the air inlet 11, the air duct 310 and the air outlet 420 in sequence, so that heat generated in the use process of the stator 20, the rotating shaft 31 and the thrust disc 32 is taken away.

In an embodiment, the heat dissipation assembly 40 further includes a heat conducting member 43, and the heat conducting member 43 is sleeved on the stator 20; one end of the heat conducting member 43 abuts against the stator 20, and the other end abuts against the casing 10, so that heat generated by the stator 20 is conducted to the casing 10 for heat dissipation. Alternatively, the heat conductive member 43 includes a base portion 431 and fin portions 432, the base portion 431 abuts against the outside of the stator 20, the fin portions 432 are plural, each fin portion 432 is provided at intervals along the circumferential direction of the base portion 431, and a gap is provided between the fin portion 432 and the inside of the casing 10 for air circulation; a heat dissipation groove 433 is formed between two adjacent fin portions 432, and the heat dissipation groove 433 communicates with the air inlet hole 11 so that the fin portions 432 dissipate heat. Further, the heat conducting member 43 further includes a partition plate portion 434 and a supporting portion 435, wherein one end of the partition plate portion 434 abuts against one end of the base portion 431, and the other end abuts against the inner side of the casing 10, and the partition plate portion 434 seals one end of the heat dissipation groove 433 close to the air outlet 420, so that the air flow sequentially flows through the air inlet 11, the heat dissipation groove 433, the air channel 310 and the air outlet 420, and heat is fully taken away; one end of the supporting portion 435 is connected with the top of the fin portion 432, the other end abuts against the inner side of the casing 10, and the partition portion 434 is matched with the supporting portion 435, so that heat of the fin portion 432 can be conducted to the casing 10, and a fixing effect is achieved.

As shown in fig. 1 to 3, the energy-saving magnetic suspension turbine vacuum pump 100 further comprises a magnetic suspension assembly 50, wherein the magnetic suspension assembly 50 comprises a first shield 51, a first thrust bearing 52, a second thrust bearing 53 and a first magnetic suspension bearing 54, the first shield 51 is installed at one end of the casing 10, the first thrust bearing 52 and the second thrust bearing 53 are respectively arranged at two sides of the thrust disc 32, and gaps exist between the first thrust bearing 52 and the thrust disc 32, and between the second thrust bearing 53 and the thrust disc 32; in operation, the first thrust bearing 52 and the second thrust bearing 53 are energized, and heat is generated during rotation of the thrust disc 32; the first thrust bearing 52, the second thrust bearing 53, and the first magnetic bearing 54 are all mounted in the first shield 51. Optionally, the magnetic levitation assembly 50 further includes a second shield 55 and a second magnetic bearing 56, the second shield 55 is installed at an end of the casing 10 far from the first shield 51, the second magnetic bearing 56 is installed in the second shield 55, and the heat dissipation cover 42 is installed at an end of the second shield 55 far from the casing 10. Further, the second shroud 55 is provided with a plurality of through holes 550, each through hole 550 is provided along the peripheral edge of the second shroud 55, one end of the through hole 550 communicates with the casing 10, and the other end communicates with the heat dissipation cover 42. Further, the magnetic levitation assembly 50 further includes a first support bearing 57 and a second support bearing 58, where the first support bearing 57 and the second support bearing 58 are respectively sleeved at two ends of the rotating shaft 31, and optionally, the first support bearing 57 is disposed near the first magnetic bearing 54, and the second support bearing 58 is disposed near the second magnetic bearing 56; further, a first support bearing 57 is mounted in the first shroud 51, and a second support bearing 58 is mounted in the second shroud 55.

As shown in fig. 1 and 2, the energy-saving magnetic suspension turbine vacuum pump 100 further comprises a volute 60, wherein the volute 60 is connected with one end of the first shield 51 far away from the casing 10; the volute 60 is provided with an air suction port 61 and an air exhaust port 62, and the air suction port 61 is communicated with an external device; impeller 33 is disposed within volute 60.

When in use, the stator 20 is electrified to drive the rotating shaft 31 to rotate, the rotating shaft 31 drives the impeller 33 and the heat dissipation fan 41 to synchronously rotate, and under the action of the impeller 33, air flow in an external device enters the volute 60 from the air suction inlet 61 and is discharged from the air discharge outlet 62, so that vacuumizing is realized; meanwhile, under the action of the heat dissipation fan 41, external air flows through the air inlet 11, the heat dissipation groove 433, the air channel 310, the through hole 550 and the air outlet 420 in sequence, so that heat generated in the use process of the stator 20, the rotating shaft 31 and the thrust disc 32 is taken away, and the heat of the fin portion 432 is conducted to the casing 10 for heat dissipation through the partition plate portion 434 and the support portion 435, so that heat dissipation is quickened. The end of the stator 20 close to the thrust disc 32 is arranged in a horn shape, so that air flows are convenient to converge and enter the ventilation channel 310, and the end of the stator 20 close to the heat dissipation fan 41 is arranged in a horn shape, so that the air flows are convenient to diffuse from the ventilation channel 310 to the through holes 550.

The energy-saving magnetic suspension turbine vacuum pump 100 enables external air flow to sequentially flow through the air inlet 11, the air duct 310 and the air outlet 420 through the rotation of the heat dissipation fan 41, so that heat generated in the using process of the stator 20, the rotating shaft 31 and the thrust disc 32 is taken away, heat is dissipated in time, and energy consumption is reduced; the energy-saving magnetic suspension turbine vacuum pump 100 has the advantages of compact structure, convenient use and high heat dissipation efficiency.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The energy-saving magnetic suspension turbine vacuum pump is characterized by comprising a shell, a stator, a rotor assembly and a heat dissipation assembly, wherein the shell is provided with a plurality of air inlet holes, and the stator is arranged in the shell; the rotor assembly comprises a rotating shaft and a thrust disc connected with the rotating shaft, the rotating shaft is rotationally connected with the machine shell, the rotating shaft penetrates through the stator, and an air channel is formed between the rotating shaft and the stator; the heat dissipation assembly comprises a heat dissipation fan and a heat dissipation cover, the heat dissipation fan is installed at one end of the rotating shaft, which is far away from the thrust disc, the heat dissipation cover is installed at one end of the casing, the heat dissipation cover is communicated with the casing, the heat dissipation fan is arranged on the heat dissipation cover, the heat dissipation cover is provided with an air outlet, and the air inlet, the air duct and the air outlet form a heat dissipation channel.

2. The energy efficient magnetic levitation turbine vacuum pump of claim 1, wherein the heat dissipation assembly further comprises a heat conducting member, the heat conducting member being sleeved on the stator; one end of the heat conducting piece is abutted against the stator, and the other end is abutted against the shell.

3. The energy-saving magnetic suspension turbine vacuum pump according to claim 2, wherein the heat conducting member comprises a base portion and a plurality of fin portions, the base portion is abutted against the outer side of the stator, the fin portions are arranged at intervals along the circumferential direction of the base portion, and a gap exists between the fin portions and the inner side of the casing; and a heat dissipation groove is formed between two adjacent fin parts, and the heat dissipation groove is communicated with the air inlet.

4. The energy-saving magnetic suspension turbine vacuum pump as claimed in claim 3, wherein the heat conducting member further comprises a partition plate part and a supporting part, one end of the partition plate part is abutted against one end of the base part, the other end is abutted against the inner side of the casing, and the partition plate part seals one end of the heat radiating groove close to the air outlet; one end of the supporting part is connected with the top of the fin part, and the other end of the supporting part is abutted against the inner side of the shell.

5. The energy efficient magnetic levitation turbine vacuum pump of claim 1, further comprising a magnetic levitation assembly, wherein the magnetic levitation assembly comprises a first shield, a first thrust bearing, a second thrust bearing and a first magnetic levitation bearing, the first shield is mounted at one end of the housing, the first thrust bearing and the second thrust bearing are respectively arranged at two sides of the thrust disc, and the first thrust bearing, the second thrust bearing and the first magnetic levitation bearing are mounted in the first shield.

6. The energy efficient magnetic levitation turbine vacuum pump of claim 5, further comprising a volute coupled to an end of the first shroud remote from the housing; the volute is provided with an air suction port and an air exhaust port, and the air suction port is communicated with an external device; the rotor assembly further comprises an impeller, the impeller is mounted at one end, close to the thrust disc, of the rotating shaft, and the impeller is arranged in the volute.

7. The energy efficient magnetic levitation turbine vacuum pump of claim 5, wherein the magnetic levitation assembly further comprises a second shroud and a second magnetic levitation bearing, the second shroud is mounted at an end of the housing away from the first shroud, the second magnetic levitation bearing is mounted in the second shroud, and the heat dissipation cover is mounted at an end of the second shroud away from the housing.

8. The energy efficient magnetic levitation turbine vacuum pump as defined in claim 7, wherein the second shield is provided with a plurality of through holes, each of which is provided along a peripheral edge of the second shield, one end of the through hole is connected to the casing, and the other end is connected to the heat dissipation cover.

9. The energy efficient magnetic levitation turbine vacuum pump of claim 1, wherein each of the air inlet holes is disposed along a circumferential direction of the housing.

10. The energy efficient magnetic levitation turbine vacuum pump of claim 1, wherein the stator has two ends configured in a horn shape.