CN216478018U - Compressor impeller structure of leak protection oil and leak protection oil mounting structure of compressor - Google Patents
Compressor impeller structure of leak protection oil and leak protection oil mounting structure of compressor Download PDFInfo
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- CN216478018U CN216478018U CN202122685401.3U CN202122685401U CN216478018U CN 216478018 U CN216478018 U CN 216478018U CN 202122685401 U CN202122685401 U CN 202122685401U CN 216478018 U CN216478018 U CN 216478018U
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Abstract
The utility model provides an oil leakage prevention compressor impeller structure and an oil leakage prevention mounting structure of a compressor, wherein the oil leakage prevention compressor impeller structure comprises a circular impeller plate, long blades and splitter blades are arranged on one side of the circular impeller plate at intervals, a plurality of supercharging blades are uniformly arranged on the other side of the circular impeller plate, and the supercharging blades are uniformly distributed at intervals in the circumferential direction around the axial lead of the circular impeller plate; and the width of the supercharging blade is gradually increased along the rotation direction of the circular impeller plate. The utility model also provides an oil leakage prevention mounting structure of the compressor, which is applied to the structure of the compressor impeller with oil leakage prevention. The utility model guides the air through the supercharging blade, so that the supercharging blade supercharges the center of the rear part of the compressor, thereby increasing the absolute static pressure of the circumferential surface of the circular impeller plate, and leading the absolute static pressure of the circumferential surface of the circular impeller plate to be greater than the pressure of the other side of the sealing bush, thereby effectively preventing leakage.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a compressor impeller technology, and specifically relates to an oil leakage prevention compressor impeller structure and an oil leakage prevention mounting structure of a compressor.
Background
The compressor wheel is one of the main components of the compressor and has the function of increasing the pressure of the flowing gas flow by applying work to the flowing gas flow under the condition of low flow resistance loss. The compressor actually has the duty of raising the pressure to raise the suction pressure to the discharge pressure, and the demands on the internal parts of the different compressors are different, so that the demand on a single-stage impeller of the compressor is increasing.
While current compressor wheel designs rely on the impeller vest pressure propagating from the compressor wheel outlet for lubricant sealing, particularly in fuel cell compressors, small leaks of lubricant can damage the fuel cell membrane, and due to the high rotational speed of the compressor wheel, as shown in fig. 3, in some cases the absolute static P2 pressure may be below atmospheric pressure, and in most cases the impeller vest pressure P1 is below the impeller outlet pressure P2, so the impeller vest pressure P1 is below the pressure P3 on the other side of the seal bushing, resulting in a lubricant leak condition in the seal bushing.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an oil leakage prevention compressor impeller structure and an oil leakage prevention mounting structure of a compressor, which overcome the defects of the prior art, have reasonable design, guide the air through a supercharging blade, and pressurize the center of the rear part of the compressor by the supercharging blade, so that the absolute static pressure of the circumferential surface of a circular impeller plate is increased, and the absolute static pressure of the circumferential surface of the circular impeller plate is greater than the pressure of the other side of a sealing bush, thereby effectively preventing leakage.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the compressor impeller structure comprises a circular impeller plate, wherein long blades and splitter blades are arranged on one side of the circular impeller plate at intervals, a plurality of supercharging blades are uniformly arranged on the other side of the circular impeller plate, and the supercharging blades are uniformly distributed at intervals in the circumferential direction around the axial lead of the circular impeller plate; and the width of the supercharging blade is gradually increased along the rotation direction of the circular impeller plate.
Preferably, the circular impeller plate, the long blades, the splitter blades and the supercharging blades are processed into a whole by the same raw material.
Preferably, the number of the pressurizing blades is 7.
The utility model also discloses an oil leakage prevention mounting structure of the compressor, which is applied to the compressor impeller; still include core rotor, shell body and bearing housing, the core rotor with set up sealing bush between the bearing housing, bearing housing and shell body fixed connection, compressor impeller fixed connection is at core rotor surface, the bearing housing has seted up the ring channel near a side surface of compressor impeller, the ring channel is corresponding with the pressure boost blade.
The utility model provides an oil leakage prevention compressor impeller structure. The method has the following beneficial effects: the air is guided by the supercharging blades, so that the supercharging blades supercharge the center of the rear part of the compressor, the absolute static pressure of the circumferential surface of the circular impeller plate is increased, and the absolute static pressure of the circumferential surface of the circular impeller plate is greater than the pressure of the other side of the sealing bush, and thus, leakage can be effectively prevented.
Drawings
In order to more clearly illustrate the present invention or the prior art solutions, the drawings that are needed in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an assembly view of a four compressor wheel according to an embodiment of the present invention;
FIG. 3 is an assembly view of a compressor wheel of the prior art;
the reference numbers in the figures illustrate:
1. a circular impeller plate; 2. a long blade; 3. a splitter blade; 4. a supercharging blade; 5. a movement rotor; 6. an outer housing; 7. a bearing housing; 8. an annular groove; 9. and sealing the bushing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings.
In a first embodiment, as shown in fig. 1-2, an oil leakage prevention compressor impeller structure includes a circular impeller plate 1, one side of the circular impeller plate 1 is provided with long blades 2 and splitter blades 3 at intervals, the other side of the circular impeller plate 1 is uniformly provided with a plurality of pressurizing blades 4, and the pressurizing blades 4 are uniformly distributed at intervals along the circumferential direction around the axial lead of the circular impeller plate 1; and the width of the pressurizing blade 4 is gradually increased in the rotation direction of the circular impeller plate 1.
The working principle is as follows:
when the compressor impeller of the utility model is installed in a compressor to operate, as shown in fig. 2, the air is guided by the supercharging blade 4, so that the supercharging blade 4 supercharges the center of the rear part of the compressor, the pressure of the absolute static state P2 of the circumferential surface of the circular impeller plate 1 is increased, and the pressure of the absolute static state P2 is greater than the pressure P3 of the other side of the sealing bush, thereby effectively preventing leakage.
In the second embodiment, as a further preferable mode of the first embodiment, the circular impeller plate 1, the long blades 2, the splitter blade 3, and the pressure-increasing blade 4 are integrally formed by processing the same raw material. So as to prevent the pressurizing blades 4 from falling off when in use, and further ensure the stability of the whole compressor impeller when in use.
In the third embodiment, as a further preferable scheme of the first embodiment, the number of the pressurizing blades 4 is 7, so as to maximally ensure the absolute static pressure P2 of the circumferential surface of the circular impeller plate 1.
In a fourth embodiment, as shown in fig. 2, the utility model further discloses an oil leakage prevention mounting structure of a compressor, which is applied with the compressor impeller structure; still include core rotor 5, shell body 6 and bearing box 7, core rotor 5 with set up sealing bush 9 between the bearing box 7, bearing box 7 and shell body 6 fixed connection, compressor impeller fixed connection is at core rotor 5 surface, bearing box 7 is close to a side surface of compressor impeller and has seted up ring channel 8, ring channel 8 is corresponding with supercharging blade 4. The annular groove 8 is formed in the bearing box 7, so that the supercharging blade 4 can rotate in the space of the annular groove 8, and the supercharging blade 4 is prevented from friction collision with the bearing box 7 during rotation.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a compressor impeller structure of leak protection oil which characterized in that: the impeller comprises a circular impeller plate (1), wherein long blades (2) and splitter blades (3) are arranged on one side of the circular impeller plate (1) at intervals, a plurality of supercharging blades (4) are uniformly arranged on the other side of the circular impeller plate (1), and the supercharging blades (4) are uniformly distributed around the axial lead of the circular impeller plate (1) at intervals in the circumferential direction; and the width of the supercharging blade (4) is gradually increased along the rotating direction of the circular impeller plate (1).
2. The compressor impeller structure of claim 1, characterized in that: the circular impeller plate (1), the long blades (2), the splitter blade (3) and the supercharging blade (4) are processed into a whole by the same raw material.
3. The compressor impeller structure of claim 1, characterized in that: the number of the supercharging blades (4) is 7.
4. The utility model provides an oil leakage prevention mounting structure of compressor which characterized in that: compressor wheel structure with the oil leakage prevention of any of claims 1-3 applied.
5. An oil leakage preventing mounting structure of a compressor according to claim 4, wherein: still include core rotor (5), shell body (6) and bearing box (7), core rotor (5) with set up sealed bush (9) between bearing box (7), bearing box (7) and shell body (6) fixed connection, compressor impeller fixed connection is at core rotor (5) surface, bearing box (7) are close to a side surface of compressor impeller and have seted up ring channel (8), ring channel (8) are corresponding with pressure boost blade (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122685401.3U CN216478018U (en) | 2021-11-04 | 2021-11-04 | Compressor impeller structure of leak protection oil and leak protection oil mounting structure of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122685401.3U CN216478018U (en) | 2021-11-04 | 2021-11-04 | Compressor impeller structure of leak protection oil and leak protection oil mounting structure of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478018U true CN216478018U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122685401.3U Active CN216478018U (en) | 2021-11-04 | 2021-11-04 | Compressor impeller structure of leak protection oil and leak protection oil mounting structure of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478018U (en) |
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2021
- 2021-11-04 CN CN202122685401.3U patent/CN216478018U/en active Active
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