CN200986513Y - Nozzle intensity tester of steam turbine - Google Patents
Nozzle intensity tester of steam turbine Download PDFInfo
- Publication number
- CN200986513Y CN200986513Y CNU2006200430388U CN200620043038U CN200986513Y CN 200986513 Y CN200986513 Y CN 200986513Y CN U2006200430388 U CNU2006200430388 U CN U2006200430388U CN 200620043038 U CN200620043038 U CN 200620043038U CN 200986513 Y CN200986513 Y CN 200986513Y
- Authority
- CN
- China
- Prior art keywords
- flange
- nozzle
- lock ring
- sleeve
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a turbine nozzle strength test device, which includes a screw bolt, a nut, a press plate, a sleeve, a lock ring, a seal ring and a flange. A groove is arranged near the lower part of the nozzle opening, the flange with the seal ring is arranged under the nozzle groove, the groove is embedded with a lock ring which can be detached into a plurality of cushions, the sleeve is plugged into the inner circle of the lock ring, radially resisted against the cushion and placed on the flange, the press plate is placed on the sleeve, the press plate is arranged at the nozzle opening, one end of the screw bolt is screwed on the flange, and the other end of the screw bolt is passed through the sleeve and the press plate and fastened by the nut. The lock ring is divided into 4 parts, and the two dividing lines are parallel and parallel to the diameter line. The press plate is U-shaped. The utility model is characterized in convenient installation, material saving, low cost and high seal reliability.
Description
(1) technical field
The utility model relates to the nozzle of steam turbine strength test device.
(2) background technology
Steam turbine is as a kind of large-scale precision machinery, and long-term high speed rotating must have good performance under the steam ambient of high temperature, high pressure, and security reliably and stability.The vapor pressure height that vaporium is in operation and is born, it is to be the mechanism of kinetic energy with thermal power transfer, wherein nozzle is the vitals of vaporium, and is therefore also high to the requirement of strength of vaporium.Work in-process need be done the intensity test.The material that detects vaporium has zero defect, situations such as weldquality, and the hydraulic testing at present is to check the most economical the most frequently used means of workpiece strength situation.
The used flange installation form of the hydraulic testing normally thread connection, seam formula connect, pressing machine roof pressure method.Thread connection is applicable to the workpiece that pitch diameter is big, and the blank length of workpiece openings end will increase.The part that aperture for the nozzle class is little, hydraulic test pressure is high can not adopt thread connection, if employing thread connection, then need on the end face of nozzle, to make a call to all screws, can cause the insufficient strength of parent, will increase the parent wall thickness, and test prescinds threaded portion after finishing again, increases process redundancy and man-hour, causes waste.The seam formula is applicable to major diameter, many bores form, and the scope of application is little.Pressing machine roof pressure method is widely used, but the cost of investment height.
(3) summary of the invention
The purpose of this utility model is to provide a kind of nozzle of steam turbine strength test device, and this test unit installation and processing is convenient, saves material, and cost is low, the sealing reliability height of test.
The utility model is achieved in that a kind of nozzle of steam turbine strength test device, it is characterized in that: comprise bolt, nut, pressing plate, sleeve, lock ring, O-ring seal, flange, below near the nozzle opening end, have groove, the flange that O-ring seal is housed places under the nozzle groove, be embedded in the lock ring that is separable into the polylith cushion block at groove, sleeve insertion lock ring inner ring radially withstands cushion block and places on the flange, on sleeve, put pressing plate, pressing plate places on the nozzle opening end, bolt one end is tightened on the flange, and the bolt other end passes sleeve and pressing plate is fastening by nut.
Described lock ring is divided into four, and two cut-off rules are parallel to each other and are parallel to diameter line.
Described pressing plate is the U-shaped plate.
The utility model is processing one groove below nozzle workpiece openings end, utilize the groove on the workpiece, the lock ring that is divided into the polylith cushion block is embedded in the groove, flange is installed in the hole of nozzle opening end, planimetric map is lower than grooved surface on the flange, loads onto can limit flange behind the lock ring and scurry outward, flange is hung tight fixing by pressing plate, sleeve, bolt, nut again, flange can not be moved, thereby reach sealing purpose.
The utility model installation and processing is convenient, can save material, and cost is low, the sealing reliability height of test.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model nozzle of steam turbine strength test device structural representation;
Fig. 2 is the lock ring structural representation;
Fig. 3 is lock ring and tube-in-tube structure synoptic diagram;
Fig. 4 is the side view of Fig. 3.
Among the figure: 1 bolt, 2 nuts, 3 pressing plates, 4 sleeves, 5 lock rings, 6 O-ring seals, 7 flanges, 8 nozzles (workpiece), 9 grooves, 10 cut-off rules, 11 big cushion blocks, 12 small cushion blocks.
(5) embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of nozzle of steam turbine strength test device comprises bolt 1, nut 2, pressing plate 3, sleeve 4, lock ring 5, O-ring seal 6, flange 7.Have groove 9 below near nozzle 8 openends, the flange 7 that O-ring seal 6 is housed places the nozzle groove 9 times, and planimetric map is lower than 9 of grooves on the flange 7.Be embedded in the lock ring 5 that is separable into the polylith cushion block at groove 9, sleeve 4 insertion lock rings 5 inner rings radially withstand cushion block and place on the flange 7.Put pressing plate 3 on sleeve 4, pressing plate 3 places on nozzle 8 openends, and bolt 1 one ends are tightened on the flange 7, and bolt 1 other end passes sleeve 4 and pressing plate 3 is fastening by nut 2.Pressing plate 3 is the U-shaped plate, and the shift-in of being convenient to pressing plate shifts out.
Referring to Fig. 2, consider the feasibility that lock ring 5 is installed, lock ring 5 is divided into four, and two cut-off rules 10 are parallel to each other and are parallel to diameter line, and lock ring 5 is divided into two identical big cushion blocks 11 and two identical small cushion blocks 12, are convenient to like this install.Lock ring 5 is cut apart can not be along heartcut, because certainly will cause last piece to install along heartcut.
Referring to Fig. 3, Fig. 4, during installation two big cushion blocks 11 are filled in earlier in the groove 9, again two small cushion blocks 12 are filled in the groove 9, make cushion block 11,12 in groove 9, surround whole circle after, insert wherein with sleeve 4, make lock ring 5 radially obtain positioning and fixing.
Referring to Fig. 1, when the nozzle of steam turbine strength test device was installed, the flange 7 that O-ring seal 6 at first will be housed was installed in the hole of nozzle 8 openends, and planimetric map is lower than 9 of grooves on the flange 7; The lock ring 5 that will be divided into polylith cushion block 11,12 then embeds in the grooves 9, can limit flange 7 outer scurrying after loading onto lock ring 5; Insert lock ring 5 internal fixation lock rings 5 with sleeve 4 again; At last pressing plate 3 is placed on plane on nozzle 8 openends, makes the bolt 1 on the flange 7 pass pressing plate 3, tighten, flange 7 can not be moved with nut 2.Like this flange about in the of 7 both direction all obtained fixingly, when flange 7 bears pressure, be subjected to outside power effect, flange 7 is blocked by lock ring 5; When flange 7 did not bear pressure, flange 7 was fixed on the nozzle 8 by pressing plate 3, bolt 1, nut 2, thereby has finished sealed nozzle.
The utility model installation and processing is convenient, can save material, and cost is low, the sealing reliability height of test.
Claims (3)
1. nozzle of steam turbine strength test device, it is characterized in that: comprise bolt, nut, pressing plate, sleeve, lock ring, O-ring seal, flange, below near the nozzle opening end, have groove, the flange that O-ring seal is housed places under the nozzle groove, be embedded in the lock ring that is separable into the polylith cushion block at groove, sleeve insertion lock ring inner ring radially withstands cushion block and places on the flange, on sleeve, put pressing plate, pressing plate places on the nozzle opening end, bolt one end is tightened on the flange, and the bolt other end passes sleeve and pressing plate is fastening by nut.
2. nozzle of steam turbine strength test device according to claim 1 is characterized in that: lock ring is divided into four, and two cut-off rules are parallel to each other and are parallel to diameter line.
3. nozzle of steam turbine strength test device according to claim 1 is characterized in that: pressing plate is the U-shaped plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200430388U CN200986513Y (en) | 2006-06-22 | 2006-06-22 | Nozzle intensity tester of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200430388U CN200986513Y (en) | 2006-06-22 | 2006-06-22 | Nozzle intensity tester of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986513Y true CN200986513Y (en) | 2007-12-05 |
Family
ID=38915970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200430388U Expired - Lifetime CN200986513Y (en) | 2006-06-22 | 2006-06-22 | Nozzle intensity tester of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986513Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540528A (en) * | 2018-11-02 | 2019-03-29 | 中国航空工业集团公司北京航空精密机械研究所 | One kind being used for engine nozzle on-line performance test device |
| CN110108446A (en) * | 2019-05-16 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of single channel nozzle model testboard |
-
2006
- 2006-06-22 CN CNU2006200430388U patent/CN200986513Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540528A (en) * | 2018-11-02 | 2019-03-29 | 中国航空工业集团公司北京航空精密机械研究所 | One kind being used for engine nozzle on-line performance test device |
| CN110108446A (en) * | 2019-05-16 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of single channel nozzle model testboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI TURBINE CO., LTD. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 188, Chun Chun Road, Shanghai, Minhang: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 333, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Steam Turbine Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
|
| EXPY | Termination of patent right or utility model |