CN220791312U - Centripetal turbine for recovering waste heat and residual pressure energy - Google Patents
Centripetal turbine for recovering waste heat and residual pressure energy Download PDFInfo
- Publication number
- CN220791312U CN220791312U CN202322664741.7U CN202322664741U CN220791312U CN 220791312 U CN220791312 U CN 220791312U CN 202322664741 U CN202322664741 U CN 202322664741U CN 220791312 U CN220791312 U CN 220791312U
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- Prior art keywords
- centripetal turbine
- volute
- pressure energy
- waste heat
- turbine impeller
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- 239000002918 waste heat Substances 0.000 title claims abstract description 14
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims 8
- 230000001133 acceleration Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Control Of Turbines (AREA)
Abstract
The utility model discloses a centripetal turbine for recovering waste heat and residual pressure energy, which comprises a volute, wherein one end of the volute is connected with an upstream incoming flow guide section, the other end of the volute is connected with a downstream outlet guide section, a centripetal turbine impeller in a semi-open design is arranged in the volute, a casing is arranged at the outer edge of the centripetal turbine impeller along the radial direction, an adjustable guide vane is arranged between the volute and the centripetal turbine impeller, and the adjustable guide vane and the centripetal turbine impeller are both in a low-reverse force design. The adjustable guide vane and the radial turbine impeller adopt low reverse force design, can establish strong forward pressure gradient in the vane flow channel, effectively inhibit viscous dissipation in the flow vane flow channel through strong flow direction acceleration, effectively inhibit flow separation of the suction surface of the impeller vane, improve pneumatic load distribution of the radial flow channel of the impeller, and realize the aim of improving pneumatic efficiency.
Description
Technical Field
The utility model relates to the technical field of centripetal turbines, in particular to a centripetal turbine for recovering waste heat and residual pressure energy.
Background
With the development of global industrialization, the energy problem is gradually highlighted, on one hand, the source of energy cannot meet the increasingly expanding high-energy-consumption industry demand, important energy materials are gradually becoming scarce, the consumption is gradually becoming depleted, on the other hand, the influence of energy consumption and exploitation on the environment is also accumulated and deepened, so that climate change is caused, and the development of industry and the life quality of human beings are affected.
At present, when the existing centripetal turbine absorbs waste heat and residual pressure tail gas, the pneumatic efficiency is low under the full working condition, and the equipment is not stable in operation, so that the energy loss is serious. A centripetal turbine with high pneumatic efficiency,
therefore, the centripetal turbine for recovering the energy of the residual heat and the residual pressure is provided for solving the problems, so that the equipment can convert the internal energy in the tail gas of the residual heat and the residual pressure into mechanical energy with high pneumatic efficiency, and the safe and stable operation of the equipment is ensured.
Disclosure of Invention
The utility model aims to provide a centripetal turbine for recovering waste heat and residual pressure energy, which comprises a volute, wherein one end of the volute is connected with an upstream incoming flow guide section, the other end of the volute is connected with a downstream outlet flow guide section, a centripetal turbine impeller with a semi-open design is arranged in the volute, a casing is arranged at the outer edge of the centripetal turbine impeller along the radial direction, an adjustable guide vane is arranged between the volute and the centripetal turbine impeller, and the adjustable guide vane and the centripetal turbine impeller are both designed with low reverse force.
Compared with the prior art, the utility model has the following beneficial effects:
the adjustable guide vane and the radial turbine impeller adopt low reverse force design, can establish strong forward pressure gradient in the vane flow channel, effectively inhibit viscous dissipation in the flow vane flow channel through strong flow direction acceleration, effectively inhibit flow separation of the suction surface of the impeller vane, improve pneumatic load distribution of the radial flow channel of the impeller, and realize the aim of improving pneumatic efficiency.
The utility model can obviously improve the turbine efficiency in the high-rotating-speed and high-load adjusting range and ensure the stable work of the core turbine in the full working condition range.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals and names in the drawings are as follows:
1. a volute; 2. an upstream incoming flow diversion section; 3. a downstream outlet flow directing section; 4. an adjustable guide vane; 5. a casing; 6. a centripetal turbine impeller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the centripetal turbine for recovering residual heat and residual pressure energy provided by the utility model comprises a volute 1, one end of the volute 1 is connected with an upstream incoming flow guide section 1, the other end of the volute 1 is connected with a downstream outlet guide section 3, a centripetal turbine impeller 6 with a semi-open design is arranged in the volute 1, a casing 5 is arranged at the outer edge of the centripetal turbine impeller 6 along the radial direction, an adjustable guide vane 4 is arranged between the volute 102 and the centripetal turbine impeller 6,
specifically, the radius of the cross section of the flow path in the volute 1 gradually contracts from large to small according to the flow direction.
Specifically, the adjustable guide vane 4 and the centripetal turbine impeller 6 are designed with low inverse force.
Specifically, the front edge of each blade of the adjustable guide blade 4 is arc-shaped and adopts a large streamline curvature radius.
In particular, the installation angle of the adjustable guide vane 4 can be adjusted within the range of-10 ° to +15°.
In particular, the individual guide blades of the adjustable guide blades 4 are distributed uniformly in the circumferential direction and have a blade consistency of 1.
Specifically, the incoming flow blade angles of the blades of the centripetal turbine impeller 6 are all 0 °.
Specifically, the radial distribution of the tail edge outlet section lines of the blades of the centripetal turbine wheel 6 is involute.
Specifically, the downstream outlet diversion section 3 adopts a progressive expansion type circular tube design.
Working principle: after the waste heat and residual pressure tail gas flows in from an inlet of an upstream incoming flow guide section, the tail gas generates pre-rotation through a volute, passes through a gas flow channel formed by adjustable guide vanes, fully accelerates expansion, then enters into each main flow channel of the centripetal turbine impeller, further expands and works, pushes the centripetal turbine impeller to rotate and output mechanical energy, and finally is discharged from an outlet guide section;
in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus 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 relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Claims (8)
1. A centripetal turbine for the recovery of residual heat and residual pressure energy, comprising a volute (1), characterized in that: one end of the volute (1) is connected with the upstream incoming flow guide section (2), the other end of the volute (1) is connected with the downstream outlet guide section (3), a centripetal turbine impeller (6) with a semi-open design is arranged inside the volute (1), a casing (5) is arranged at the outer edge of the centripetal turbine impeller (6) along the radial direction, and an adjustable guide vane (4) is arranged between the volute (1) and the centripetal turbine impeller (6).
2. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the radius of the cross section of the flow path in the volute (1) gradually contracts from large to small according to the flow direction.
3. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the adjustable guide vane (4) and the centripetal turbine impeller (6) are designed with low reverse force.
4. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the front edge of each blade of the adjustable guide blade (4) is arc-shaped and adopts a large streamline curvature radius.
5. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the installation angle of the adjustable guide vane (4) can be adjusted within the range of-10 DEG to +15 deg.
6. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the incoming flow blade angles of the blades of the centripetal turbine impeller (6) are all 0 degrees.
7. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the tail edge outlet section lines of the blades of the centripetal turbine impeller (6) are distributed into involute along the radial direction.
8. A centripetal turbine for waste heat and excess pressure energy recovery according to claim 1, wherein: the downstream outlet diversion section (3) adopts progressive expansion type circular tube design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322664741.7U CN220791312U (en) | 2023-10-07 | 2023-10-07 | Centripetal turbine for recovering waste heat and residual pressure energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322664741.7U CN220791312U (en) | 2023-10-07 | 2023-10-07 | Centripetal turbine for recovering waste heat and residual pressure energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791312U true CN220791312U (en) | 2024-04-16 |
Family
ID=90636201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322664741.7U Active CN220791312U (en) | 2023-10-07 | 2023-10-07 | Centripetal turbine for recovering waste heat and residual pressure energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791312U (en) |
-
2023
- 2023-10-07 CN CN202322664741.7U patent/CN220791312U/en active Active
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