CN112761739A - Expander nozzle adjusting device and expander - Google Patents
Expander nozzle adjusting device and expander Download PDFInfo
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- CN112761739A CN112761739A CN202011637913.6A CN202011637913A CN112761739A CN 112761739 A CN112761739 A CN 112761739A CN 202011637913 A CN202011637913 A CN 202011637913A CN 112761739 A CN112761739 A CN 112761739A
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- expander
- nozzle
- end flange
- rotating ring
- gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses an expander nozzle adjusting device and an expander, relates to the technical field of expanders, and mainly aims to provide a rear nozzle adjusting device so that the expander can adopt an inner volute form. The main technical scheme of the invention is as follows: the expander nozzle adjustment device includes an end flange having a gearbox side for connection with a gearbox of an expander; the ring body comprises a rotating ring which is rotatably arranged on the end flange and a fixing ring which is fixedly arranged on the end flange and is positioned in the rotating ring; the nozzle blades are distributed along the circumferential direction of the rotating ring, and two ends of each nozzle blade are respectively and rotatably connected to the fixed ring and the rotating ring; the transmission mechanism comprises a driving shaft, a transmission piece and a gear; the transmission piece is connected with the rotating ring and is provided with meshing teeth; the gear is rotatably arranged on the end flange and is meshed with the transmission part; the driving shaft is rotatably arranged on the end flange, one end of the driving shaft penetrates out of the gear side, and the other end of the driving shaft is connected with the gear.
Description
Technical Field
The invention relates to the technical field of expanders, in particular to an expander nozzle adjusting device and an expander.
Background
In recent years, with the increasing energy crisis, the increasing awareness of environmental protection, and the increasing scale of chemical plants, the demand of the expander market for energy recovery by using the residual heat and pressure of chemical tail gas is also increasing.
Take PTA (purified terephthalic acid) device in the chemical industry field as an example, the energy recovery of the tail gas adopts a double-stage gear assembled centripetal expander in common use, and a nozzle adjusting mechanism is usually arranged for adapting to the adjustment under variable working conditions and improving the economical efficiency of the operation of the expander under the variable working conditions. For small and medium-sized PTA devices, an assembled centripetal expander usually adopts an outer volute and a front-mounted nozzle adjusting mechanism. However, as the capacity demand of the PTA device increases, the size of the centripetal expander increases, which requires the gear box to have a larger center distance to meet the structural design requirement, and this problem is more serious for the expander using the outer volute. It is known that an increase in the center distance not only leads to a drastic increase in cost, but also imposes restrictions on the design and manufacturing capabilities of the gears.
The inner volute form can effectively reduce the center distance of the gear box, reduce the radial size of the unit, has little influence on the performance of the expansion machine, and is a necessary trend for realizing the design of a large centripetal expansion machine, but due to the structural limitation of the inner volute, the front nozzle adjusting mechanism cannot be applied.
Disclosure of Invention
The embodiment of the invention provides an expander nozzle adjusting device and an expander, and mainly aims to provide a rear nozzle adjusting device, so that the expander can adopt an inner volute form, the center distance of a gear box is reduced, and the processing and manufacturing difficulty of the gear box is reduced.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, an embodiment of the present invention provides an expander nozzle adjusting device, including:
an end flange having a gearbox side corresponding to a gearbox of the expander;
the ring body comprises a rotating ring which is rotatably arranged on the end flange and a fixing ring which is fixedly arranged on the end flange and is positioned in the rotating ring;
the nozzle vanes are arranged along the circumferential direction of the rotating ring, one end of each nozzle vane is movably connected to the rotating ring, and the other end of each nozzle vane is rotatably connected to the fixing ring;
the transmission mechanism comprises a driving shaft, a transmission piece and a gear; the transmission piece is connected to the rotating ring, and meshing teeth are arranged on the transmission piece; the gear is rotatably arranged on the end flange and is in meshed connection with the transmission piece; the driving shaft is rotatably arranged on the end flange, one end of the driving shaft penetrates out of the gear box side, and the other end of the driving shaft is connected with the gear.
Furthermore, a plurality of pin bodies which correspond to the nozzle vanes one to one are arranged on the circumferential direction of the rotating ring;
one end of the nozzle blade is provided with a strip-shaped hole extending along the length direction of the nozzle blade;
the end part of the pin body is inserted into the strip-shaped hole and can move in the strip-shaped hole.
Further, the outer diameter of the pin body is matched with the width of the elongated hole.
Further, the driving medium is the curved bar body, the driving medium connect in the outer wall of swivel becket.
Further, a first annular mounting groove is formed in the surface, on one side, away from the gear box, of the end flange;
the ring body and the transmission mechanism are located in the first mounting groove.
Further, the expander nozzle adjustment device further comprises:
one end of the driving rod is connected with one end of the driving shaft;
and the actuator is rotatably connected with the other end of the driving rod.
Further, the expander nozzle adjustment device further comprises:
the annular guard plate is arranged on the end flange and sleeved outside the rotating ring, and a notch is formed in the position, corresponding to the transmission part and the gear, of the annular guard plate.
Further, a second mounting groove surrounding the first mounting groove is formed in one side surface, away from the gear box, of the end flange;
the annular guard plate is located in the second mounting groove.
Further, the drive rod and the drive shaft key are connected;
the drive shaft is keyed to the gear.
In another aspect, an embodiment of the present invention provides an expander, including the expander nozzle adjusting device described above.
By means of the technical scheme, the invention at least has the following beneficial effects:
in the technical scheme provided by the embodiment of the invention, the driving shaft extends out of one side of the end flange, which is connected with the gear box of the expansion machine, namely the gear box side, and is used for receiving torque, so that the nozzle adjusting device forms a rear nozzle adjusting device, compared with a front nozzle adjusting device, the rear nozzle adjusting device can enable the assembled centripetal expansion machine to adopt an inner volute form, namely the inner volute can be arranged on the side of the end flange, which is deviated from the gear box, and is sunken towards the nozzle blades, so that the center distance of the gear box is reduced, and the scale of the expansion machine can be developed towards large scale.
According to the technical scheme provided by the embodiment of the invention, the rotating ring of the ring body is rotatably arranged on the end flange, the fixing ring is fixedly arranged on the end flange and is positioned in the rotating ring, the transmission part is connected with the rotating ring and is meshed with the gear, the gear is connected with the driving shaft, and when the driving shaft receives a moment, the moment can be transmitted to the rotating ring through the meshing of the transmission part and the gear, so that the rotating ring rotates, the nozzle blade rotates, the outlet angle of the nozzle blade of the expansion machine is changed, and the purpose of changing the pneumatic performance of the expansion machine is realized. Compared with the prior art, the embodiment of the invention adopts a gear transmission mode to replace a crank connecting rod transmission mode, so that the structural form is simpler, and the torque transmission is more reliable.
In the technical scheme provided by the embodiment of the invention, the end flange is of an integral structure, the rear nozzle adjusting device can be assembled with the end flange and then assembled on the gear box, namely the ring body, the nozzle blades and the transmission mechanism can be assembled with the end flange and then assembled on the gear box, and similarly, the end flange and the rear nozzle adjusting device can be disassembled from the gear box together without respectively disassembling and assembling parts of the nozzle adjusting device, so that the nozzle adjusting device is more convenient to disassemble and assemble.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic cross-sectional structural view of an expander nozzle adjustment device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an expander nozzle adjusting device according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 4 is a schematic sectional view along the direction B-B in fig. 3.
Detailed Description
In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 and 2, an embodiment of the present invention provides an expander nozzle adjusting device, comprising an end flange 1, wherein the end flange 1 is provided with a gear box side C for connecting with a gear box of an expander; the ring body comprises a rotating ring 2 which is rotatably arranged on the end flange 1 and a fixed ring 3 which is fixedly arranged on the end flange 1 and is positioned in the rotating ring 2; the nozzle vanes 4 are arranged along the circumferential direction of the rotating ring 2, one end of each nozzle vane 4 is movably connected to the rotating ring 2, the other end of each nozzle vane 4 is rotatably connected to the fixing ring 3, and specifically, each nozzle vane 4 can be rotatably connected to the fixing ring 3 through a shaft body 42; a transmission mechanism including a drive shaft 5, a transmission member 6, and a gear 7; the transmission piece 6 is connected to the rotating ring 2, and meshing teeth are arranged on the transmission piece 6; the gear 7 is rotatably arranged on the end flange 1 and is meshed with the transmission piece 6; the driving shaft 5 is rotatably disposed on the end flange 1, and one end thereof penetrates through the gear box side C, and the other end thereof is connected with the gear 7.
Wherein the drive shaft 5 can be passed out of the gearbox-side surface of the end flange 1 to receive a torque, so that the nozzle adjustment device constitutes a rear nozzle adjustment device. Moreover, the end flange 1 can be of an integral structure to adapt to the development trend that the end face teeth are connected with the impeller, and the ring body, the nozzle blades 4 and the transmission mechanism can be arranged on the end flange 1, so that the end flange can be integrated, and the nozzle adjusting device can be conveniently assembled and disassembled on the expander gear box.
In the expander nozzle adjusting device provided by the embodiment of the invention, the driving shaft 5 extends to one side of the end flange 1, which is connected with the gear box of the expander, namely the gear box side C, and is used for receiving torque, so that the nozzle adjusting device forms a rear nozzle adjusting device, compared with a front nozzle adjusting device, the rear nozzle adjusting device can enable the assembled centripetal expander to adopt an inner volute form, namely the inner volute can be arranged on one side of the end flange 1, which is deviated from the gear box side C, and is sunken towards the nozzle blades 4, so that the center distance of the gear box is reduced, and the scale of the expander can be developed towards large scale. In fig. 2, reference numeral "101" denotes a gear box.
According to the nozzle adjusting device of the expansion machine, the rotating ring 2 of the ring body is rotatably arranged on the end flange 1, the fixing ring 3 is fixedly arranged on the end flange 1 and is positioned inside the rotating ring 2, the transmission piece 6 is connected with the rotating ring 2, the transmission piece 6 is meshed with the gear 7, the gear 7 is connected with the driving shaft 5, when the driving shaft 5 receives a moment, the moment can be transmitted to the rotating ring 2 through the meshing of the transmission piece 6 and the gear 7, the rotating ring 2 rotates, the nozzle blades 4 rotate, the outlet angle of the nozzle blades 4 of the expansion machine is changed, and the purpose of changing the pneumatic performance of the expansion machine is achieved. Compared with the prior art, the embodiment of the invention adopts a gear 7 transmission mode to replace a crank connecting rod transmission mode, so that the structural form is simpler, and the torque transmission is more reliable.
In the expander nozzle adjusting device provided by the embodiment of the invention, the end flange 1 is of an integral structure, the rear nozzle adjusting device can be assembled with the end flange 1 and then assembled on the gear box, namely, the ring body, the nozzle blades 4 and the transmission mechanism can be assembled with the end flange 1 and then assembled on the gear box, and similarly, the end flange 1 and the rear nozzle adjusting device can be disassembled from the gear box together without respectively disassembling and assembling all parts of the nozzle adjusting device, so that the nozzle adjusting device is more convenient to disassemble and assemble.
In an alternative embodiment, referring to fig. 3 and 4, the rotating ring 2 may be provided in a circumferential direction with a plurality of pin bodies 8 in one-to-one correspondence with the plurality of nozzle vanes 4; one end of the nozzle blade 4 may be provided with an elongated hole 41 extending in a length direction thereof; the end of the pin 8 is inserted into the elongated hole 41 and is movable in the elongated hole 41.
According to the above embodiment, when the driving shaft 5 receives the torque and transmits the torque to the rotating ring 2 through the transmission mechanism, the rotating ring 2 rotates with the plurality of pin bodies 8, because the position of the fixed ring 3 is fixed, the nozzle vanes 4 rotate by taking the rotating shaft of the pin body 8 on the fixed ring 3 as the shaft, at the same time, the pin 8 moves in the elongated hole 41 until the nozzle vanes 4 reach a desired angle, the nozzle vanes 4 stop rotating, thereby changing the outlet angle of the nozzle vane 4 of the expansion machine, the structural design not only can lead the rotation of the nozzle vane 4 to be more flexible, but also can be convenient for the adjustment of the rotation angle of the nozzle vane 4, thereby being convenient for the adjustment of the outlet angle of the nozzle vane 4, and the pneumatic performance of the expansion machine is better changed, so that the expansion machine is suitable for variable working condition operation, and the economical efficiency of the expansion machine in the variable working condition operation is improved. The elongated hole 41 may be a blind hole.
In an alternative embodiment, referring to fig. 4, the outer diameter of the pin 8 is adapted to the width of the elongated hole 41, so that the pin 8 moves along the track of the elongated hole 41, and the nozzle vane 4 can rotate better, thereby better changing the exit angle of the nozzle vane 4 of the expander, better changing the pneumatic performance of the expander, adapting the expander to operate under variable conditions, and improving the economy of the expander in operation under variable conditions.
In an alternative embodiment, see fig. 2, the transmission member 6 may be an arc-shaped strip, the transmission member 6 being connected to the outer wall of the rotating ring 2.
In the above embodiment, since the rotation angle required by the nozzle vane 4 is smaller, the rotation angle of the rotating ring 2 is also smaller, and therefore, in order to save cost and improve the utilization rate of parts, the transmission member 6 may be configured as an arc-shaped strip, and the gear 7 is engaged with the strip, that is, the rotating ring 2 is driven to rotate, so as to drive the nozzle vane 4 to rotate to change the outlet angle thereof. Wherein, the meshing tooth can be arranged along the length direction of the strip-shaped body, and the meshing length of the strip-shaped body and the gear 7 should make the rotating ring 2 rotate enough angle.
In an alternative embodiment, referring to fig. 1, a side surface of the end flange 1 facing away from the gearbox side C may be provided with a first mounting groove 11 in the shape of a ring; the ring body and the transmission mechanism can be mounted in this first mounting recess 11. In this embodiment, the first mounting groove 11 is formed in the end flange 1, so that the ring body and the transmission mechanism can be mounted in the first mounting groove 11, rather than protruding outside the end flange 1, and the parts of the rear nozzle adjusting device do not increase extra space in the axial direction of the end flange 1, thereby saving the internal space of the nozzle adjusting device.
In an alternative embodiment, referring to fig. 1 and 2, the expander nozzle adjustment device may further include a driving rod 9, one end of the driving rod 9 being connected to one end of the driving shaft 5; and the actuator 10 is rotatably connected with the other end of the driving rod 9.
In an alternative embodiment, see fig. 1, the drive rod 9 and the drive shaft 5 may be keyed; the drive shaft 5 and the gear 7 may be keyed.
In the above embodiment, the actuator 10 may be a pneumatic actuator 10 or a hydraulic actuator 10, an output end of the actuator 10 may transmit torque to the driving rod 9 through a pin, the driving rod 9 transmits torque to the driving shaft 5 through a key to drive the driving shaft 5 to rotate, the driving shaft 5 transmits torque to the gear 7 through a key, and the gear 7 is engaged with the transmission member 6 to transmit torque to drive the rotating ring 2 to rotate.
In an alternative embodiment, referring to fig. 2, the nozzle adjusting device of the expansion machine may further include an annular protecting plate 12, the annular protecting plate 12 is disposed on the end flange 1 and is sleeved outside the rotating ring 2, and the annular protecting plate 12 is provided with a gap 121 at a position corresponding to the transmission member 6 and the gear 7. In this embodiment, the annular guard plate 12 can protect the transmission mechanism, the ring body and other parts, and the opening 121 formed in the annular guard plate 12 can facilitate the maintenance of the gear 7 and the transmission member 6.
In an alternative embodiment, see fig. 1, the end flange 1 is provided with a second mounting recess 13 surrounding the first mounting recess 11 on a side surface facing away from the gearbox side C; the annular shield 12 is located in the second mounting recess 13. In this embodiment, by providing the second mounting groove 13 on the end flange 1, the annular protection plate 12 can be mounted in the first mounting groove 11, instead of protruding outside the end flange 1, so that the annular protection plate 12 does not increase the extra space in the axial direction of the end flange 1, thereby further saving the internal space of the nozzle adjusting device. Wherein the surface of the annular protecting plate 12 and the rotating ring 2 can be flush with the surface of the end flange 1.
The embodiment of the invention also provides the expander, which comprises the expander nozzle adjusting device.
The expander provided by the embodiment of the invention comprises an expander nozzle adjusting device, wherein the driving shaft 5 extends to one side, connected with a gear box of the expander, of the end flange 1, namely the gear box side C, and is used for receiving torque, so that the nozzle adjusting device forms a rear nozzle adjusting device, compared with a front nozzle adjusting device, the rear nozzle adjusting device can enable the assembled centripetal expander to adopt an inner volute form, namely the inner volute can be arranged on one side, deviated from the gear box side C, of the end flange 1 and is sunken towards the nozzle blades 4, the center distance of the gear box is reduced, and further the scale of the expander can be developed towards large scale.
The expander provided by the embodiment of the invention comprises an expander nozzle adjusting device, wherein a rotating ring 2 of a ring body is rotatably arranged on an end flange 1, a fixing ring 3 is fixedly arranged on the end flange 1 and is positioned inside the rotating ring 2, a transmission piece 6 is connected with the rotating ring 2, the transmission piece 6 is meshed with a gear 7, the gear 7 is connected with a driving shaft 5, when the driving shaft 5 receives a torque, the torque is transmitted to the rotating ring 2 through the meshing of the transmission piece 6 and the gear 7, so that the rotating ring 2 rotates, a nozzle blade 4 rotates, the outlet angle of the expander nozzle blade 4 is changed, and the purpose of changing the pneumatic performance of the expander is realized. Compared with the prior art, the embodiment of the invention adopts a gear 7 transmission mode to replace a crank connecting rod transmission mode, so that the structural form is simpler, and the torque transmission is more reliable.
The expander provided by the embodiment of the invention comprises the expander nozzle adjusting device, the end flange 1 is of an integral structure, the rear nozzle adjusting device can be assembled with the end flange 1 and then assembled on the gear box, namely, the ring body, the nozzle blades 4 and the transmission mechanism can be assembled with the end flange 1 and then assembled on the gear box, and similarly, the end flange 1 and the rear nozzle adjusting device can be disassembled from the gear box together without respectively disassembling and assembling parts of the nozzle adjusting device, so that the nozzle adjusting device is more convenient to disassemble and assemble.
Finally, it should be noted that: 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 (10)
1. An expander nozzle adjustment device, comprising:
an end flange having a gearbox side for connection with a gearbox of the expander;
the ring body comprises a rotating ring which is rotatably arranged on the end flange and a fixing ring which is fixedly arranged on the end flange and is positioned in the rotating ring;
the nozzle vanes are arranged along the circumferential direction of the rotating ring, one end of each nozzle vane is movably connected to the rotating ring, and the other end of each nozzle vane is rotatably connected to the fixing ring;
the transmission mechanism comprises a driving shaft, a transmission piece and a gear; the transmission piece is connected to the rotating ring, and meshing teeth are arranged on the transmission piece; the gear is rotatably arranged on the end flange and is in meshed connection with the transmission piece; the driving shaft is rotatably arranged on the end flange, one end of the driving shaft penetrates out of the gear box side, and the other end of the driving shaft is connected with the gear.
2. The expander nozzle adjustment device according to claim 1,
a plurality of pin bodies which correspond to the nozzle vanes one by one are arranged in the circumferential direction of the rotating ring;
one end of the nozzle blade is provided with a strip-shaped hole extending along the length direction of the nozzle blade;
the end part of the pin body is inserted into the strip-shaped hole and can move in the strip-shaped hole.
3. The expander nozzle adjustment device according to claim 2,
the outer diameter of the pin body is matched with the width of the strip-shaped hole.
4. The expander nozzle adjustment device according to claim 1,
the driving medium is the curved bar body, the driving medium connect in the outer wall of swivel becket.
5. The expander nozzle adjustment device according to claim 1,
a first annular mounting groove is formed in the surface, on one side, away from the gear box, of the end flange;
the ring body and the transmission mechanism are located in the first mounting groove.
6. The expander nozzle adjustment device according to claim 1, further comprising:
one end of the driving rod is connected with one end of the driving shaft;
and the actuator is rotatably connected with the other end of the driving rod.
7. The expander nozzle adjustment device according to claim 5, further comprising:
the annular guard plate is arranged on the end flange and sleeved outside the rotating ring, and a notch is formed in the position, corresponding to the transmission part and the gear, of the annular guard plate.
8. The expander nozzle adjustment device according to claim 7,
a second mounting groove surrounding the first mounting groove is formed in the surface, on one side, of the end flange, and the surface is far away from the gear box;
the annular guard plate is located in the second mounting groove.
9. The expander nozzle adjustment device according to claim 6,
the driving rod is connected with the driving shaft key;
the drive shaft is keyed to the gear.
10. An expander, comprising:
the expander nozzle adjustment device of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637913.6A CN112761739A (en) | 2020-12-31 | 2020-12-31 | Expander nozzle adjusting device and expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637913.6A CN112761739A (en) | 2020-12-31 | 2020-12-31 | Expander nozzle adjusting device and expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112761739A true CN112761739A (en) | 2021-05-07 |
Family
ID=75698246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011637913.6A Pending CN112761739A (en) | 2020-12-31 | 2020-12-31 | Expander nozzle adjusting device and expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112761739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680793A (en) * | 2022-11-15 | 2023-02-03 | 中国船舶集团有限公司第七一一研究所 | Guide vane adjusting mechanism and expansion machine |
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|---|---|---|---|---|
| US5467613A (en) * | 1994-04-05 | 1995-11-21 | Carrier Corporation | Two phase flow turbine |
| CN101586478A (en) * | 2009-04-08 | 2009-11-25 | 西安交通大学 | Nozzle adjusting device of turboexpander |
| CN102322300A (en) * | 2010-05-14 | 2012-01-18 | 诺沃皮尼奥内有限公司 | The turbo-expander that is used for the power generation systems |
| CN104895623A (en) * | 2015-04-16 | 2015-09-09 | 西安交通大学 | Low temperature liquid expander nozzle |
-
2020
- 2020-12-31 CN CN202011637913.6A patent/CN112761739A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5467613A (en) * | 1994-04-05 | 1995-11-21 | Carrier Corporation | Two phase flow turbine |
| CN101586478A (en) * | 2009-04-08 | 2009-11-25 | 西安交通大学 | Nozzle adjusting device of turboexpander |
| CN102322300A (en) * | 2010-05-14 | 2012-01-18 | 诺沃皮尼奥内有限公司 | The turbo-expander that is used for the power generation systems |
| CN104895623A (en) * | 2015-04-16 | 2015-09-09 | 西安交通大学 | Low temperature liquid expander nozzle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680793A (en) * | 2022-11-15 | 2023-02-03 | 中国船舶集团有限公司第七一一研究所 | Guide vane adjusting mechanism and expansion machine |
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