CN212535909U - Ultra-high pressure head ultra-low flow hydraulic recovery turbine - Google Patents
Ultra-high pressure head ultra-low flow hydraulic recovery turbine Download PDFInfo
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- CN212535909U CN212535909U CN202020740330.5U CN202020740330U CN212535909U CN 212535909 U CN212535909 U CN 212535909U CN 202020740330 U CN202020740330 U CN 202020740330U CN 212535909 U CN212535909 U CN 212535909U
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- cavity
- flow stabilizing
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- pump cylinder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to a hydraulic recovery turbine especially relates to a super high pressure head ultralow flow hydraulic recovery turbine. The utility model discloses a set up steady flow chamber and steady flow board and pressure regulating device and reduce vaporization, the cavitation of turbine. The utility model comprises a steady flow cavity arranged between the pump cylinder and the first sealing element, wherein one end of the steady flow cavity is communicated with the pump cylinder; the flow stabilizing plate is fixed in the flow stabilizing cavity, and at least three pieces of flow stabilizing plate are uniformly distributed along the radial direction of the flow stabilizing plate by taking the central shaft as the center of a circle; and the liquid outlet pipe is connected with the flow stabilizing cavity.
Description
Technical Field
The utility model relates to a hydraulic recovery turbine especially relates to a super high pressure head ultralow flow hydraulic recovery turbine.
Background
The hydraulic turbine is mechanical equipment for converting pressure energy in a liquid fluid working medium into mechanical energy, and the hydraulic turbine can be used for recycling liquid excess pressure in the process flow and converting the liquid excess pressure into the mechanical energy to drive the mechanical equipment so as to save energy. A conventional hydraulic turbine basically includes a housing, an impeller and a main shaft, wherein the impeller is located inside the housing and connected to the main shaft.
In the actual use process, because the fluid flow direction in the liquid outlet pipe is disordered, the fluid flow direction is not uniformly contacted with the impeller, and the phenomena of vaporization and cavitation are serious.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a super high pressure head ultralow flow hydraulic recovery turbine reduces vaporization, the cavitation of turbine through setting up steady flow chamber and steady flow board and pressure regulating device.
The ultra-high pressure head ultra-low flow hydraulic recovery turbine comprises a pump cylinder body, a turbine body and a turbine body, wherein the pump cylinder body is provided with a cavity capable of accommodating an impeller; a first seal member attached to an end of the pump barrel; an outlet end bearing disposed outside the first seal; the balance sleeve is connected to the head end of the pump cylinder body; the second sealing element is arranged on the outer side of the balance sleeve and is hermetically connected with the pump cylinder body; be fixed in the entrance point bearing in the second sealing member outside to and the center pin that pump barrel central point put the setting, pump barrel head end be equipped with the feed liquor pipe that the cavity is connected, the center pin in proper order with export end axle, first sealing member, balanced cover, second sealing member and entrance point bearing suit, fixed impeller on the center pin, it still includes: the flow stabilizing cavity is arranged between the pump cylinder body and the first sealing piece, and one end of the flow stabilizing cavity is communicated with the pump cylinder body; the flow stabilizing plate is fixed in the flow stabilizing cavity, and at least three pieces of flow stabilizing plate are uniformly distributed along the radial direction of the flow stabilizing plate by taking the central shaft as the center of a circle; and the liquid outlet pipe is connected with the flow stabilizing cavity.
The cross section area of one end of the flow stabilizing cavity is equal to that of the cavity, and the liquid medium is uniformly contacted with the impeller by arranging the flow stabilizing cavity and the flow stabilizing plate, so that the vaporization and the cavitation of the turbine are reduced.
Preferably, the liquid outlet pipe also comprises a pressure adjusting device, wherein the pressure adjusting device comprises a first branch pipe connected with the liquid outlet pipe; the second branch pipe is arranged on the side of the liquid inlet pipe and connected with the cavity; and a pressure regulating valve connecting the first branch pipe and the second branch pipe.
The pressure regulating valve can regulate the pressure of the liquid outlet pipe, and if vaporization occurs, the pressure regulating valve is regulated to expand the back pressure.
Preferably, the number of the flow stabilizing plates is 0.6-1 times of the number of the blades of a single impeller.
In addition, the contraction coefficient of the flow channel in the conventional design is not less than 0.8, and the medium contains gas, so that the medium is vaporized to form a gas-liquid mixed state when the pressure is reduced, and the operation of the device is influenced. The experimental determination shows that the contraction coefficient of the flow channel can be set to be 0.68-0.9.
The utility model has the advantages that: the vaporization and the cavitation of the turbine are reduced by arranging the flow stabilizing cavity, the flow stabilizing plate and the pressure adjusting device.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
in the figure: 1. a pump cylinder; 2. an impeller; 3. a cavity; 4. a first seal member; 5. an outlet end bearing; 6. a balance sleeve; 7. a second seal member; 8. an inlet end bearing; 9. a central shaft; 10. a liquid inlet pipe; 11. a flow stabilizing cavity; 12. a flow stabilizer; 13. a liquid outlet pipe; 14. a first branch pipe; 15. a second branch pipe; 16. a pressure regulating valve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the ultra-high head ultra-low flow hydraulic recovery turbine of the present invention comprises a pump cylinder 1 having a cavity 3 capable of accommodating an impeller 2; a first sealing member 4 connected to the end of the pump cylinder 1; an outlet end bearing 5 disposed outside the first seal member 4; the balance sleeve 6 is connected to the head end of the pump cylinder body 1; the second sealing element 7 is arranged on the outer side of the balance sleeve 6 and is hermetically connected with the pump cylinder 1; be fixed in the entrance point bearing 8 in the second sealing member 7 outside to and the center pin 9 that 1 central point of pump barrel put and set up, 1 head end of pump barrel be equipped with the feed liquor pipe 10 that cavity 3 is connected, center pin 9 in proper order with exit end bearing 5, first sealing member 4, balanced cover 6, second sealing member 7 and the suit of entrance point bearing 8, fixed impeller 2 on the center pin 9, it still includes: the flow stabilizing cavity 11 is arranged between the pump cylinder body 1 and the first sealing element 4, and one end of the flow stabilizing cavity 11 is communicated with the pump cylinder body 1; the flow stabilizing plate 12 is fixed in the flow stabilizing cavity 11, and three pieces of flow stabilizing plate 12 are uniformly distributed along the radial direction of the flow stabilizing plate 12 by taking the central shaft 9 as the center of a circle; and a liquid outlet pipe 13 connected with the steady flow cavity 11. The device also comprises a pressure adjusting device, wherein the pressure adjusting device comprises a first branch pipe 14 connected with the liquid outlet pipe 13; a second branch pipe 15 arranged at the side of the liquid inlet and outlet pipe 10 and connected with the cavity 3; and a pressure regulating valve 16 connecting the first branch pipe 14 and the second branch pipe 15. In this embodiment, the number of the blades of the single impeller is five, and the number of the flow stabilizing plates is three.
The cross section area of one end of the flow stabilizing cavity is equal to that of the cavity, and the liquid medium is uniformly contacted with the impeller by arranging the flow stabilizing cavity and the flow stabilizing plate, so that the vaporization and the cavitation of the turbine are reduced. The pressure regulating valve can regulate the pressure of the liquid outlet pipe, and if vaporization occurs, the pressure regulating valve is regulated to expand the back pressure.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (2)
1. An ultra-high pressure head ultra-low flow hydraulic recovery turbine comprises a pump cylinder body (1) which is provided with a cavity (3) capable of accommodating an impeller (2); a first sealing member (4) connected to the end of the pump cylinder (1); an outlet end bearing (5) disposed outside the first seal (4); a balance sleeve (6) connected to the head end of the pump cylinder body (1); the second sealing element (7) is arranged on the outer side of the balance sleeve (6) and is hermetically connected with the pump cylinder body (1); be fixed in import end bearing (8) in second sealing member (7) outside to and pump barrel body (1) central point put center pin (9) that sets up, pump barrel body (1) head end be equipped with feed liquor pipe (10) that cavity (3) are connected, center pin (9) in proper order with export end bearing (5), first sealing member (4), balanced cover (6), second sealing member (7) and import end bearing (8) suit, fixed impeller (2) on center pin (9), its characterized in that still includes:
the flow stabilizing cavity (11) is arranged between the pump cylinder body (1) and the first sealing element (4), and one end of the flow stabilizing cavity (11) is communicated with the pump cylinder body (1);
the flow stabilizing plate (12) is fixed in the flow stabilizing cavity (11), and at least three pieces of flow stabilizing plate (12) are uniformly distributed along the radial direction of the flow stabilizing plate by taking the central shaft (9) as the center of a circle;
and a liquid outlet pipe (13) connected with the flow stabilizing cavity (11).
2. The ultra-high head ultra-low flow hydraulic recovery turbine of claim 1, wherein: also comprises a pressure adjusting device, the pressure adjusting device comprises,
a first branch pipe (14) connected with the liquid outlet pipe (13);
a second branch pipe (15) arranged at the side of the liquid inlet pipe (10) and connected with the cavity (3);
and a pressure regulating valve (16) connecting the first branch pipe (14) and the second branch pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020740330.5U CN212535909U (en) | 2020-05-07 | 2020-05-07 | Ultra-high pressure head ultra-low flow hydraulic recovery turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020740330.5U CN212535909U (en) | 2020-05-07 | 2020-05-07 | Ultra-high pressure head ultra-low flow hydraulic recovery turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212535909U true CN212535909U (en) | 2021-02-12 |
Family
ID=74539977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020740330.5U Expired - Fee Related CN212535909U (en) | 2020-05-07 | 2020-05-07 | Ultra-high pressure head ultra-low flow hydraulic recovery turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212535909U (en) |
-
2020
- 2020-05-07 CN CN202020740330.5U patent/CN212535909U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |