CN214499461U - Two-stage centrifugal air compressor volute - Google Patents
Two-stage centrifugal air compressor volute Download PDFInfo
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- CN214499461U CN214499461U CN202120653505.3U CN202120653505U CN214499461U CN 214499461 U CN214499461 U CN 214499461U CN 202120653505 U CN202120653505 U CN 202120653505U CN 214499461 U CN214499461 U CN 214499461U
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- volute
- spiral case
- air compressor
- centrifugal air
- stage centrifugal
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Abstract
The utility model provides a doublestage centrifugal air compressor spiral case, includes the spiral case body, the central authorities of spiral case body are equipped with the air inlet, and the baffle circumferencial direction that is located the spiral case body is equipped with the helix type runner, the spiral type runner end is equipped with the bending segment. The utility model discloses install the bending segment at the terminal integrated into one piece of spiral case and make spiral case self just can realize that the gas vent turns to, avoided the easy gaseous problem that spills over of kneck in order to turn to the secondary installation steering tube and lead to. The connecting section is arranged at the tail end of the volute, the tail end of the volute can be inserted into the connecting pipe, the sealing groove is arranged at the connecting section, the sealing ring can be installed in the volute during installation to realize multiple sealing, and the gas cannot overflow during installation.
Description
Technical Field
The utility model relates to a hydrogen fuel cell engine technical field, concretely relates to doublestage centrifugal air compressor machine spiral case.
Background
The development of new energy fuel cell automobiles is considered to be an important link of traffic energy power transformation at present and is paid much attention. Proton exchange membrane fuel cells are currently the most mature representative of the fuel cell family. The device takes hydrogen and air (oxygen in the air) as fuel to generate electrochemical reaction, and directly converts the chemical energy of the fuel into electric energy to generate water. The energy-saving automobile engine has the advantages of no pollution, high efficiency, wide application, low noise, quick start at room temperature, capability of quickly supplementing energy, modular structure and the like, and is likely to become one of main power sources of automobiles following the traditional internal combustion engine.
In order to ensure the normal operation of the fuel cell engine, the engine generally needs auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem and a circulating water cooling management subsystem. A number of studies have shown that high pressure, high flow air supply has a significant effect on improving the power output of existing fuel cell engines. Therefore, before air enters the engine, the air compressor is an energy conversion device for realizing the purpose, and is one of important parts of an air supply system of the fuel cell engine.
In order to improve the effective power output of an engine and reduce the power consumption of an air compressor, the air compressor technology of double-stage compression draws extensive attention. The two-stage compressor is provided with centrifugal compression devices on two sides, and the volute casings on the two sides are communicated through connecting pipes to realize gas compression. The volute exhaust port and the air inlet in the prior art are connected and must be additionally provided with the steering pipe, so that the exhaust port of the primary volute can be communicated with the air inlet of the secondary volute through the connecting pipe on the premise of ensuring the minimum occupied area through the steering pipe, however, high-pressure gas easily overflows from a connecting gap, and how to improve the sealing performance of the connection between the volute and the connecting pipe is the problem to be solved at the present stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem the utility model provides a doublestage centrifugal air compressor spiral case, including the spiral case body, the central authorities of spiral case body are equipped with the air inlet, and the baffle circumferencial direction that is located the spiral case body is equipped with the helix type runner, the helix type runner end is equipped with the bending segment.
Further, the volute body is integrally formed.
Further, the spiral streamline type flow passage is a spiral streamline type flow passage which gradually increases from the head to the tail.
Further, the bending section bends towards the air inlet in the opposite direction.
Further, the tail end of the bending section is in the horizontal direction.
Furthermore, the tail end of the bending section is provided with a connecting section.
Furthermore, the outer diameter of the connecting section is smaller than that of the bending section, and a sealing groove is formed in the connecting section.
Furthermore, the rear side of the volute body is a mounting surface, and a plurality of mounting holes are circumferentially distributed on the periphery of the mounting surface.
The utility model has the advantages that:
(1) the utility model discloses install the bending segment at the terminal integrated into one piece of spiral case and make spiral case self just can realize that the gas vent turns to, avoided the easy gaseous problem that spills over of kneck in order to turn to the secondary installation steering tube and lead to.
(2) The utility model discloses be equipped with the linkage segment at the spiral case end can with the end insert in the connecting tube to be equipped with the seal groove in linkage segment department, installation sealing ring has realized multiple sealed including can the installation, ensures that gas can not spill over when the installation.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a detailed view of the bending section of the present invention.
Drawing reference number
The spiral casing comprises a spiral casing body (1), an air inlet (2), a spiral flow channel (3), a bending section (4), a connecting section (5), a sealing groove (6) and a mounting hole (7).
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings, which are provided for illustration purposes only to help understanding the present invention and are not to be construed as limiting the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1, 2 the utility model discloses a doublestage centrifugal air compressor spiral case, including spiral case body 1, 1 integrated into one piece of spiral case body, the central authorities of spiral case body 1 are equipped with air inlet 2, and the baffle circumferencial direction that is located spiral case body 1 is equipped with helix type runner 3, helix type runner 3 is the streamlined runner of the gradually crescent helix from beginning to end, 3 ends of helix type runner are equipped with bending segment 4.
The bending section 4 bends towards the air inlet 2 in the opposite direction. And bending the tail end of the bending section 4 to a horizontal direction.
The end of the bending section 4 is provided with a connecting section 5, the outer diameter of the connecting section is smaller than that of the bending section 4, and the connecting section 5 is provided with a sealing groove 6. During installation, the connecting section is inserted into the connecting pipe, and a sealing ring is arranged in the sealing groove to ensure sealing.
The rear side of the volute body 1 is a mounting surface, and a plurality of mounting holes 7 are circumferentially distributed on the periphery of the mounting surface to connect the volute with a motor shell.
The embodiments of the present invention, it is understood that the above embodiments are exemplary and not intended to be construed as limiting, and those skilled in the art can change, modify, replace and modify the above embodiments without departing from the spirit and scope of the present invention, and the simple combination of the above embodiments is listed as the protection of the present invention.
Claims (8)
1. The utility model provides a doublestage centrifugal air compressor spiral case, includes spiral case body (1), the central authorities of spiral case body (1) are equipped with air inlet (2), and the baffle circumferencial direction that is located spiral case body (1) is equipped with helix type runner (3), its characterized in that, helix type runner (3) end is equipped with bending segment (4).
2. The dual-stage centrifugal air compressor volute of claim 1, wherein: the volute body (1) is integrally formed.
3. The dual-stage centrifugal air compressor volute of claim 1, wherein: the spiral streamline type flow channel (3) is a spiral streamline type flow channel which gradually increases from head to tail.
4. The dual-stage centrifugal air compressor volute of claim 1, wherein: the bending section (4) bends towards the air inlet (2) in the opposite direction.
5. The dual-stage centrifugal air compressor volute of claim 1, wherein: the tail end of the bending section (4) is in the horizontal direction.
6. The dual-stage centrifugal air compressor volute of claim 5, wherein: the tail end of the bending section (4) is provided with a connecting section (5).
7. The dual-stage centrifugal air compressor volute of claim 6, wherein: the outer diameter of the connecting section is smaller than that of the bending section (4), and a sealing groove (6) is arranged on the connecting section (5).
8. The dual-stage centrifugal air compressor volute of claim 1, wherein: the volute is characterized in that the rear side of the volute body (1) is a mounting surface, and a plurality of mounting holes (7) are circumferentially distributed on the periphery of the mounting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653505.3U CN214499461U (en) | 2021-03-31 | 2021-03-31 | Two-stage centrifugal air compressor volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653505.3U CN214499461U (en) | 2021-03-31 | 2021-03-31 | Two-stage centrifugal air compressor volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499461U true CN214499461U (en) | 2021-10-26 |
Family
ID=78201353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120653505.3U Active CN214499461U (en) | 2021-03-31 | 2021-03-31 | Two-stage centrifugal air compressor volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499461U (en) |
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2021
- 2021-03-31 CN CN202120653505.3U patent/CN214499461U/en active Active
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