CN221144534U - Turbine expander - Google Patents
Turbine expander Download PDFInfo
- Publication number
- CN221144534U CN221144534U CN202323074761.5U CN202323074761U CN221144534U CN 221144534 U CN221144534 U CN 221144534U CN 202323074761 U CN202323074761 U CN 202323074761U CN 221144534 U CN221144534 U CN 221144534U
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- CN
- China
- Prior art keywords
- lubricating oil
- shell
- cavity
- impeller
- turbine expander
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- 239000010687 lubricating oil Substances 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000011229 interlayer Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000001050 lubricating effect Effects 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Supercharger (AREA)
Abstract
The utility model discloses a turbine expander, which comprises a bottom plate, wherein the upper end of the bottom plate is provided with a turbine expander body, the turbine expander body comprises a shell, a volute, an impeller, a nozzle, a diffuser pipe, a cavity and a transmission shaft, the upper end of the bottom plate is provided with the shell, one side of the surface of the shell is provided with the volute, the middle part of the inner side of the shell is movably provided with the impeller through a rotating shaft, the nozzle is arranged between the impeller and the volute in the shell, the diffuser pipe is arranged at one side of the impeller in the shell, the cavity is arranged in the middle part of the inner side of the shell, and the transmission shaft is arranged in the middle part of the inner side of the cavity. The utility model has good use effect, and the linkage lubricating oil circulation mechanism is added, so that the lubricating oil can be automatically driven to circulate when the device works, and the lubricating oil at the bearing can be in a continuous flowing state, so that the lubricating oil flowing has enough cooling time to improve the lubricating effect and prolong the service life of the lubricating oil.
Description
Technical Field
The utility model relates to the technical field of turbo expanders, in particular to a turbo expander.
Background
The turbine expander is a key device necessary for obtaining cold energy, such as an air separation device, a natural gas (petroleum gas) liquefaction separation device, a low-temperature crushing device and the like, and is a heart for ensuring the stable operation of the whole equipment.
The smoothness of the bearing of the turbine expander is the key whether the whole equipment can normally operate or not when the turbine expander is used, the turbine expander in the prior art has two lubrication modes, one is to use lubricating oil as lubrication, the other is to use the principle of magnetic suspension to suspend the whole rotating shaft so as to reduce friction, and the magnetic suspension overall cost is higher, so the application mainly aims at improving the turbine expander lubricated by the lubricating oil.
Disclosure of utility model
The present utility model is directed to a turboexpander that solves the above-mentioned problems associated with the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a turboexpander, includes the bottom plate, the bottom plate upper end is provided with the turboexpander body, the turboexpander body includes casing, spiral case, impeller, nozzle, diffuser pipe, cavity, transmission shaft, the bottom plate upper end is provided with the casing, casing surface one side is provided with the spiral case, the inboard middle part of casing is provided with the impeller through the pivot activity, the nozzle has been seted up between impeller and spiral case to the inside portion of casing, the inside diffuser pipe that is provided with in impeller one side of casing, the inboard middle part of casing is provided with the cavity, the inside middle part of cavity is provided with the transmission shaft, fixed connection between transmission shaft and the pivot that the impeller is located, the inside circulation mechanism that promotes lubricating oil to circulate that is provided with of cavity, be provided with the bearing between transmission shaft and the cavity, circulation mechanism includes interlayer, outer runner, interior runner, spiral transmission piece, the inside fixed interlayer that is provided with in cavity, the inside in the interlayer, the outside fixed spiral transmission piece that is provided with of transmission shaft outside surface.
Preferably, an interlayer gap is arranged between the bearing and the inner side wall of the cavity, and when the lubricating oil flows, the lubricating oil flows from the inner runner under the action of the spiral transmission sheet, then the lubricating oil can pass through the inside of the left bearing, between the balls and then enter the outer runner through the interlayer gap, then flow through the outer runner and pass through the interlayer gap on the right side, and flow back into the inner runner through the inside of the right bearing and between the balls, so that the lubricating oil in the turbine expander can automatically flow during operation, better lubricating and heat dissipation effects are achieved, and the lubricating oil flows for a sufficient cooling time to improve the lubricating effect and the service life of the lubricating oil.
Preferably, a sealing ring is arranged between the impeller and the inner side wall of the shell, and the cavity and the impeller can be guaranteed to be completely sealed and not to be conducted through the sealing ring.
Preferably, the bearing is internally provided with balls, and the balls can play a role in reducing rotation friction.
Preferably, the inside lubricating oil replenishment pipe that is fixedly provided with in cavity upper end of casing, the inside lubricating oil discharge pipe that is fixedly provided with in cavity lower extreme of casing can conveniently supply lubricating oil to the inside at any time of casing through lubricating oil replenishment pipe, and can discharge the lubricating oil that inside life of casing reached through lubricating oil discharge pipe.
Preferably, the sealing cover is arranged at one end of the lubricating oil supplementing pipe and one end of the lubricating oil discharging pipe in a movable screwing way through threads, and the sealing effect of the lubricating oil supplementing pipe and the lubricating oil discharging pipe can be ensured through the sealing cover.
Preferably, a bracket is fixedly arranged between the bottom plate and the turbine expander body, and stable supporting force can be provided for the turbine expander body through the bracket.
Compared with the prior art, the utility model has the beneficial effects that:
1. The integral device has a simple structure, the power part adopts the power generated by the turbine expander body without an additional power source, and the circulating flow passage of lubricating oil can be formed by adopting an interlayer, so that the device has a simple structure, low cost and convenient popularization and use.
2. The utility model can drive the transmission shaft to rotate together when the working impeller of the device rotates, so that the spiral transmission piece can be driven to rotate, lubricating oil can flow from the left bearing direction of the inner runner under the action of the spiral transmission piece, then lubricating oil can pass through the inner part of the left bearing and between the balls and enter the outer runner through the interlayer gaps, then flow through the outer runner and pass through the interlayer gaps on the right side and between the inner part of the right bearing and between the balls and back flow into the inner runner, thus the lubricating oil in the turbine expander can automatically flow to play a better lubricating and heat dissipation effect, and the lubricating oil flow has enough cooling time to improve the lubricating effect and the service life of the lubricating oil.
Drawings
FIG. 1 is a schematic view of the overall structure of a turboexpander of the present utility model;
FIG. 2 is an enlarged view of the turboexpander of the present utility model at A in FIG. 1;
FIG. 3 is a view of the internal structure of a cavity of a turboexpander according to the present utility model.
In the figure: 1. a bottom plate; 2. a housing; 3. a volute; 4. an impeller; 5. a nozzle; 6. a diffuser pipe; 7. a cavity; 8. a transmission shaft; 9. an interlayer; 10. an outer flow passage; 11. an inner flow passage; 12. a spiral transport sheet; 13. a bearing; 14. an interlayer gap; 15. a seal ring; 16. a ball; 17. a lubricating oil replenishment pipe; 18. a lubricant oil discharge pipe.
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.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a turboexpander, includes bottom plate 1, bottom plate 1 upper end is provided with the turboexpander body, the turboexpander body includes casing 2, spiral case 3, impeller 4, nozzle 5, diffusion pipe 6, cavity 7, transmission shaft 8, bottom plate 1 upper end is provided with casing 2, casing 2 surface one side is provided with spiral case 3, casing 2 inboard middle part is provided with impeller 4 through the pivot activity, the nozzle 5 has been seted up between impeller 4 and spiral case 3 in casing 2 inside, casing 2 inside is provided with diffusion pipe 6 in impeller 4 one side, casing 2 inboard middle part is provided with cavity 7, cavity 7 inside middle part is provided with transmission shaft 8, fixed connection between transmission shaft 8 and the pivot that impeller 4 is located, cavity 7 inside is provided with the circulation mechanism that promotes the lubricating oil and circulate, be provided with bearing 13 between transmission shaft 8 and the cavity 7, circulation mechanism includes interlayer 9, outflow way 10, interior runner 11, spiral transmission piece 12, cavity 7 inside is fixedly provided with 9, cavity 7 inside is provided with outer runner 10 in the outside 9, cavity 7 inside is provided with the inside interlayer surface is provided with spiral transmission shaft 12, the interlayer surface is fixed outside in the inside of the interlayer 8.
An interlayer gap 14 is arranged between the bearing 13 and the inner side wall of the cavity 7, when lubricating oil flows, under the action of the spiral transmission sheet 12, the lubricating oil flows from the inner runner 11, then the lubricating oil can pass through the inside of the left bearing 13, between the balls 16 and then enter the outer runner 10 through the interlayer gap 14, then flow through the outer runner 10, pass through the interlayer gap 14 on the right side, and flow back into the inner runner 11 between the inside of the right bearing 13 and between the balls 16, so that the lubricating oil in the turbine expander can automatically flow to play a better lubricating and heat dissipation effect, and the lubricating oil flow has enough cooling time to improve the lubricating effect and the service life of the lubricating oil;
A sealing ring 15 is arranged between the impeller 4 and the inner side wall of the shell 2, and the sealing ring 15 can ensure that the cavity 7 and the impeller 4 are completely sealed and cannot be conducted;
The ball 16 is arranged in the bearing 13, and the ball 16 can play a role in reducing rotation friction;
The inside of the shell 2 is fixedly provided with a lubricating oil supplementing pipe 17 at the upper end of the cavity 7, the inside of the shell 2 is fixedly provided with a lubricating oil discharging pipe 18 at the lower end of the cavity 7, lubricating oil can be conveniently supplemented into the inside of the shell 2 at any time through the lubricating oil supplementing pipe 17, and lubricating oil with the service life reaching the inside of the shell 2 can be discharged through the lubricating oil discharging pipe 18;
The sealing covers are arranged at one ends of the lubricating oil supplementing pipe 17 and the lubricating oil discharging pipe 18 through movable screwing of threads, and the sealing effect of the lubricating oil supplementing pipe 17 and the lubricating oil discharging pipe 18 can be ensured through the sealing covers;
a support is fixedly arranged between the bottom plate 1 and the turbine expander body, and stable supporting force can be provided for the turbine expander body through the support.
Working principle: when the device is used, lubricating oil needs to be filled in the cavity 7, at the moment, the bearing 13 and the balls 16 in the bearing 13 can be soaked in the lubricating oil, and the transmission shaft 8 can be driven to rotate together when the working impeller 4 of the device rotates, so that the spiral transmission piece 12 can be driven to rotate, the lubricating oil can flow from the inner runner 11 to the left side bearing 13 under the action of the spiral transmission piece 12, then the lubricating oil can pass through the inside of the left side bearing 13 and between the balls 16 and then enter the outer runner 10 through the interlayer gaps 14, then flow through the outer runner 10 and pass through the inside of the right side bearing 13 and between the balls 16 to flow back into the inner runner 11, so that the lubricating oil in the turbine expander can automatically flow to play a better lubricating and heat dissipation effect, and the lubricating oil flow has enough cooling time to improve the lubricating effect and the service life of the lubricating oil; and the structure of the whole device is simple when the device is used, the power part adopts the power generated by the turbine expander body without an additional power source, and the circulating flow channel of lubricating oil can be formed by adopting an interlayer 9, so that the device has the advantages of simple structure, low cost and convenient popularization and use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A turboexpander comprising a base plate (1), characterized in that: the turbine expander body is arranged at the upper end of the bottom plate (1), the turbine expander body comprises a shell (2), a volute (3), an impeller (4), a nozzle (5), a diffuser pipe (6), a cavity (7) and a transmission shaft (8), the shell (2) is arranged at the upper end of the bottom plate (1), the volute (3) is arranged on one side of the surface of the shell (2), the impeller (4) is movably arranged at the middle part of the inner side of the shell (2) through a rotating shaft, the nozzle (5) is arranged between the impeller (4) and the volute (3) in the shell (2), the diffuser pipe (6) is arranged at one side of the impeller (4) in the shell (2), the cavity (7) is arranged at the middle part in the inner side of the shell, the transmission shaft (8) is fixedly connected with the rotating shaft where the impeller (4) is arranged, a circulating mechanism for pushing lubricating oil to circulate is arranged in the cavity (7), a bearing (13) is arranged between the transmission shaft (8) and the cavity (7), the circulating mechanism comprises a circulating runner (9), an outer runner (10), a spiral piece (11) and a partition layer (9) is fixedly arranged in the cavity (9), the inner side of the interlayer (9) is provided with an inner runner (11), and the outer side surface of the transmission shaft (8) is fixedly provided with a spiral transmission sheet (12).
2. A turboexpander according to claim 1, wherein: an interlayer gap (14) is arranged between the bearing (13) and the inner side wall of the cavity (7).
3. A turboexpander according to claim 1, wherein: a sealing ring (15) is arranged between the impeller (4) and the inner side wall of the shell (2).
4. A turboexpander according to claim 1, wherein: the bearing (13) is internally provided with balls (16).
5. A turboexpander according to claim 1, wherein: the inside of the shell (2) is fixedly provided with a lubricating oil supplementing pipe (17) at the upper end of the cavity (7), and the inside of the shell (2) is fixedly provided with a lubricating oil discharging pipe (18) at the lower end of the cavity (7).
6. A turboexpander according to claim 5, wherein: one end of the lubricating oil supplementing pipe (17) and one end of the lubricating oil discharging pipe (18) are respectively provided with a sealing cover through movable screwing of threads.
7. A turboexpander according to claim 1, wherein: a bracket is fixedly arranged between the bottom plate (1) and the turbine expander body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323074761.5U CN221144534U (en) | 2023-11-15 | 2023-11-15 | Turbine expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323074761.5U CN221144534U (en) | 2023-11-15 | 2023-11-15 | Turbine expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221144534U true CN221144534U (en) | 2024-06-14 |
Family
ID=91426065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323074761.5U Active CN221144534U (en) | 2023-11-15 | 2023-11-15 | Turbine expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221144534U (en) |
-
2023
- 2023-11-15 CN CN202323074761.5U patent/CN221144534U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |