CN219733480U - Supporting structure of back pressure steam turbine nozzle chamber and inner cylinder - Google Patents
Supporting structure of back pressure steam turbine nozzle chamber and inner cylinder Download PDFInfo
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- CN219733480U CN219733480U CN202320746340.3U CN202320746340U CN219733480U CN 219733480 U CN219733480 U CN 219733480U CN 202320746340 U CN202320746340 U CN 202320746340U CN 219733480 U CN219733480 U CN 219733480U
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- steam turbine
- back pressure
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- 238000009434 installation Methods 0.000 claims description 8
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model discloses a supporting structure of a nozzle chamber and an inner cylinder of a back pressure steam turbine, which relates to the technical field of the back pressure steam turbine.
Description
Technical Field
The utility model relates to the technical field of back pressure turbines, in particular to a supporting structure of a nozzle chamber and an inner cylinder of a back pressure turbine.
Background
The steam turbine with the exhaust pressure being greater than the atmospheric pressure is called a back pressure steam turbine, the exhaust steam can be used for supplying heat or supplying the original middle and low pressure steam turbine to replace the middle and low pressure boilers of the old power plant, and when the back pressure steam turbine is used for supplying the original middle and low pressure steam turbine to replace the middle and low pressure boilers of the old power plant, the back pressure steam turbine is also called a front-mounted steam turbine, so that the power generation capacity of the original power plant can be increased, the heat economy of the original power plant can be improved, and the back pressure type high-speed industrial steam turbine is characterized in that the cylinder structure is generally divided into an outer cylinder, a nozzle chamber and an inner cylinder due to the high temperature characteristic.
However, when the inner cylinder and the nozzle chamber are installed in the outer cylinder, the outer cylinder is important for supporting the nozzle chamber and the inner cylinder by the supporting structure of the nozzle chamber and the inner cylinder, but the supporting structure of the nozzle chamber and the inner cylinder is too single for a part of the existing steam turbine, the inner cylinder and the nozzle chamber are easy to shake in the outer cylinder, so that the stability of the steam turbine is poor in operation, the operation of the steam turbine is influenced, and the inventor proposes a supporting structure of the nozzle chamber and the inner cylinder of the back pressure steam turbine for solving the problems.
Disclosure of Invention
In order to solve the problems that the stability of the steam turbine is poor and the operation of the steam turbine is affected when the existing part of steam turbine is too single in supporting structure for supporting the nozzle chamber and the inner cylinder and the nozzle chamber are easy to vibrate in the outer cylinder; the utility model aims to provide a supporting structure of a nozzle chamber and an inner cylinder of a back pressure steam turbine.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a back pressure steam turbine nozzle room and bearing structure of interior cylinder, including outer cylinder, the installation room has been seted up in the outer cylinder, install interior cylinder body and nozzle room body in the installation room detachable, install strutting arrangement in the middle of the bottom surface of installation room, strutting arrangement includes the cylinder, the output fixed mounting of two cylinders has the supporting seat, evenly distributed's lifter is installed to the bottom surface bilateral symmetry of supporting seat, lifter and cylinder mutually support, after interior cylinder body and nozzle room body are installed in outer cylinder, open the switch of two cylinders in the strutting arrangement, under the cooperation of the lifter of supporting seat bottom surface even installation, drive the supporting seat through the output of cylinder and rise, make the inboard of supporting seat laminate with the bottom surface of interior cylinder body, support interior cylinder body through the supporting seat, increase the stability of steam turbine, prevent that the steam turbine from taking place to shake at the during operation, influence the operation of steam turbine.
Preferably, the fixed part of evenly distributed is fixedly arranged on two sides of the surface of the inner cylinder body, the supporting rod is fixedly arranged on the bottom surface of the fixed part, the positioning strip is fixedly arranged on the bottom surface of the supporting rod, the positioning bolt is arranged on the inner thread clamp of the positioning strip, the positioning plates are fixedly arranged on two sides of the supporting device in the installation chamber, the positioning bolt is arranged in the positioning plates in a threaded mode, the supporting rod and the positioning strip are fixedly arranged through the fixed part, the inner cylinder body and the nozzle chamber body which are arranged in the outer cylinder are supported through the fixed part in cooperation with the supporting rod and the positioning strip, and the inner cylinder body and the nozzle chamber body which are arranged in the outer cylinder are fixedly arranged on the two positioning plates through the fixed part and the supporting rod.
Preferably, evenly distributed's location fastener is installed to interior cylinder body's top surface bilateral symmetry, evenly distributed's first joint groove is seted up to outer cylinder's top surface both sides, location fastener slip card is established in first joint groove, location fastener and first joint groove mutually support, through establishing interior cylinder body's top surface both sides fixed mounting's four location fastener cards in outer cylinder top surface both sides first joint inslot of seting up, install the location to interior cylinder body, location bolt is fixed mounting in the bottom surface of location fastener, the locating hole has been seted up to the bottom surface symmetry of first joint groove, location bolt slip card is established in the locating hole, the locating hole cooperates with the location bolt, install the location to interior cylinder body through the cooperation of location bolt and locating hole, install interior cylinder body in outer cylinder.
Preferably, the middle fixed mounting that interior cylinder body top surface is located the location fastener has the fixed fastener, the second joint groove has been seted up in the centre that outer cylinder top surface is located first joint groove, fixed fastener slip card is established in the second joint groove, through the second joint inslot of seting up in the middle of the outer cylinder top surface with two fixed fastener cards of interior cylinder body top surface fixed mounting, install the location to interior cylinder body, fixed fastener internal thread card is equipped with the location buckle, the location buckle screw thread card is established in outer cylinder, the location buckle is mutually supported with the fixed fastener, fix interior cylinder body through location buckle cooperation fixed fastener.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, after the inner cylinder body and the nozzle chamber body are arranged in the outer cylinder, the switches of the two cylinders in the supporting device are turned on, and under the cooperation of the lifting rods uniformly arranged on the bottom surface of the supporting seat, the supporting seat is driven to lift through the output end of the cylinder, so that the inner side of the supporting seat is attached to the bottom surface of the inner cylinder body, the inner cylinder body is supported through the supporting seat, the stability of the steam turbine is improved, and the steam turbine is prevented from vibrating during working to influence the operation of the steam turbine;
2. in the utility model, the supporting rod and the positioning strip are installed and fixed through the fixing piece, the inner cylinder body and the nozzle chamber body which are installed in the outer cylinder are supported through the fixing piece matched with the supporting rod and the positioning strip, the inner cylinder body and the nozzle chamber body which are installed in the outer cylinder are fixedly installed on the two positioning plates through the matching of the positioning bolt and the positioning strip, and the inner cylinder body and the nozzle chamber body are supported through the fixing piece and the supporting rod.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Figure 1 is a schematic diagram of the structure of the present utility model,
figure 2 is a front view of the overall structure of the present utility model,
figure 3 is a schematic view of the external structure of the inner cylinder of the present utility model,
FIG. 4 is a schematic view of the internal structure of the outer cylinder of the present utility model.
In the figure: 1. an outer cylinder; 11. a mounting chamber; 12. a first clamping groove; 121. positioning holes; 13. a second clamping groove; 2. an inner cylinder body; 21. a fixing member; 22. a support rod; 23. a positioning strip; 231. positioning bolts; 24. a positioning clamp; 241. positioning a bolt; 25. a fixing clip; 251. positioning buckle; 3. a nozzle chamber body; 4. a support device; 41. a cylinder; 42. a lifting rod; 43. a support base; 5. and (5) positioning the plate.
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.
Examples: as shown in fig. 1-4, the utility model provides a supporting structure of a nozzle chamber and an inner cylinder of a back pressure steam turbine, which comprises an outer cylinder 1, wherein a mounting chamber 11 is formed in the outer cylinder 1, an inner cylinder body 2 and a nozzle chamber body 3 are detachably mounted in the mounting chamber 11, a supporting device 4 is mounted in the middle of the bottom surface of the mounting chamber 11, the supporting device 4 comprises cylinders 41, supporting seats 43 are fixedly mounted at the output ends of the two cylinders 41, lifting rods 42 which are uniformly distributed are symmetrically mounted on the two sides of the bottom surface of the supporting seats 43, the lifting rods 42 are mutually matched with the cylinders 41, after the inner cylinder body 2 and the nozzle chamber body 3 are mounted in the outer cylinder 1, the two cylinders 41 in the supporting device 4 are opened, under the matching of the lifting rods 42 which are uniformly mounted on the bottom surface of the supporting seats 43, the supporting seats 43 are driven to rise through the output ends of the cylinders 41, the inner sides of the supporting seats 43 are attached to the bottom surface of the inner cylinder body 2, the inner cylinder body 2 is supported through the supporting seats 43, the stability of the steam turbine is increased, and the running of the steam turbine is prevented from being affected.
Fixing pieces 21 which are uniformly distributed are fixedly arranged on two sides of the surface of the inner cylinder body 2, a supporting rod 22 is fixedly arranged on the bottom surface of the fixing piece 21, a positioning strip 23 is fixedly arranged on the bottom surface of the supporting rod 22, positioning bolts 231 are clamped in the inner threads of the positioning strip 23, positioning plates 5 are fixedly arranged on two sides of the mounting chamber 11, which are positioned on the supporting device 4, of the positioning bolts 231 are clamped in the positioning plates 5 in a threaded manner;
through adopting above-mentioned technical scheme, install fixedly bracing piece 22 and location strip 23 through mounting 21, support interior cylinder body 2 and nozzle chamber body 3 of installing in outer cylinder 1 through mounting 21 cooperation bracing piece 22 and location strip 23, through the cooperation of locating bolt 231 and location strip 23, will install interior cylinder body 2 and nozzle chamber body 3 fixed mounting in outer cylinder 1 on two locating plates 5, support interior cylinder body 2 and nozzle chamber body 3 through mounting 21 and bracing piece 22.
The two sides of the top surface of the inner cylinder body 2 are symmetrically provided with uniformly distributed positioning clamping pieces 24, the two sides of the top surface of the outer cylinder 1 are provided with uniformly distributed first clamping grooves 12, the positioning clamping pieces 24 are slidably clamped in the first clamping grooves 12, and the positioning clamping pieces 24 are matched with the first clamping grooves 12;
through adopting above-mentioned technical scheme, through the four location clamps 24 card of the both sides fixed mounting of interior cylinder body 2 top surface establish in the first joint groove 12 that outer cylinder 1 top surface both sides were seted up, install the location to interior cylinder body 2.
The bottom surface of the positioning clamping piece 24 is fixedly provided with positioning pins 241, positioning holes 121 are symmetrically formed in the bottom surface of the first clamping groove 12, the positioning pins 241 are slidably clamped in the positioning holes 121, and the positioning holes 121 and the positioning pins 241 are matched with each other;
through adopting above-mentioned technical scheme, through the cooperation of location bolt 241 and locating hole 121, install the location to interior cylinder body 2, install interior cylinder body 2 in outer cylinder 1.
The top surface of the inner cylinder body 2 is positioned in the middle of the positioning clamping piece 24 and is fixedly provided with a fixing clamping piece 25, the top surface of the outer cylinder 1 is positioned in the middle of the first clamping groove 12 and is provided with a second clamping groove 13, and the fixing clamping piece 25 is slidably clamped in the second clamping groove 13;
through adopting above-mentioned technical scheme, through the two fixed fastener 25 card of fixed mounting in the middle of the top surface of interior cylinder body 2 establish in the second joint groove 13 of seting up in the middle of outer cylinder 1 top surface, install the location to interior cylinder body 2.
The inner thread of the fixed clamping piece 25 is clamped with a positioning buckle 251, the positioning buckle 251 is clamped in the outer cylinder 1 in a threaded manner, and the positioning buckle 251 is matched with the fixed clamping piece 25;
through adopting above-mentioned technical scheme, fix the interior cylinder body 2 through location buckle 251 cooperation fixed fastener 25.
Working principle: after the inner cylinder body 2 and the nozzle chamber body 3 are arranged in the outer cylinder 1, the switches of the two cylinders 41 in the supporting device 4 are turned on, under the cooperation of the lifting rods 42 uniformly arranged on the bottom surface of the supporting seat 43, the supporting seat 43 is driven to lift through the output end of the cylinders 41, the inner side of the supporting seat 43 is attached to the bottom surface of the inner cylinder body 2, the supporting seat 43 supports the inner cylinder body 2, the stability of a steam turbine is improved, and the steam turbine is prevented from vibrating during working to influence the operation of the steam turbine;
the support rod 22 and the positioning strip 23 are installed and fixed through the fixing piece 21, the inner cylinder body 2 and the nozzle chamber body 3 installed in the outer cylinder 1 are supported through the fixing piece 21 matched with the support rod 22 and the positioning strip 23, the inner cylinder body 2 and the nozzle chamber body 3 installed in the outer cylinder 1 are fixedly installed on the two positioning plates 5 through the matching of the positioning bolt 231 and the positioning strip 23, and the inner cylinder body 2 and the nozzle chamber body 3 are supported through the fixing piece 21 and the support rod 22.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. Support structure of back pressure steam turbine nozzle chamber and interior cylinder, including outer cylinder (1), its characterized in that: the outer cylinder (1) is internally provided with an installation chamber (11), the installation chamber (11) is internally provided with an inner cylinder body (2) and a nozzle chamber body (3) in a detachable manner, the middle of the bottom surface of the installation chamber (11) is provided with a supporting device (4), the supporting device (4) comprises a cylinder (41), the two output ends of the cylinder (41) are fixedly provided with supporting seats (43), the two sides of the bottom surface of the supporting seats (43) are symmetrically provided with lifting rods (42) which are uniformly distributed, and the lifting rods (42) are mutually matched with the cylinder (41).
2. The back pressure steam turbine nozzle chamber and inner cylinder supporting structure according to claim 1, wherein fixing pieces (21) which are uniformly distributed are fixedly arranged on two sides of the surface of the inner cylinder body (2), supporting rods (22) are fixedly arranged on the bottom surfaces of the fixing pieces (21), positioning strips (23) are fixedly arranged on the bottom surfaces of the supporting rods (22), positioning bolts (231) are arranged on the inner threads of the positioning strips (23) in a clamping mode, positioning plates (5) are fixedly arranged on two sides of the mounting chamber (11) located on the supporting device (4), and the positioning bolts (231) are arranged in the positioning plates (5) in a clamping mode.
3. The supporting structure of the back pressure steam turbine nozzle chamber and the inner cylinder according to claim 1, wherein uniformly distributed positioning clamping pieces (24) are symmetrically arranged on two sides of the top surface of the inner cylinder body (2), uniformly distributed first clamping grooves (12) are formed on two sides of the top surface of the outer cylinder (1), the positioning clamping pieces (24) are slidably clamped in the first clamping grooves (12), and the positioning clamping pieces (24) are matched with the first clamping grooves (12).
4. A supporting structure for a nozzle chamber and an inner cylinder of a back pressure turbine as claimed in claim 3, wherein a positioning pin (241) is fixedly installed on the bottom surface of the positioning clamping member (24), positioning holes (121) are symmetrically formed on the bottom surface of the first clamping groove (12), the positioning pin (241) is slidably clamped in the positioning holes (121), and the positioning holes (121) are mutually matched with the positioning pin (241).
5. A support structure for a nozzle chamber and an inner cylinder of a back pressure steam turbine according to claim 3, wherein a fixing clamp (25) is fixedly installed in the middle of the positioning clamp (24) on the top surface of the inner cylinder body (2), a second clamping groove (13) is formed in the middle of the first clamping groove (12) on the top surface of the outer cylinder (1), and the fixing clamp (25) is slidably clamped in the second clamping groove (13).
6. The supporting structure of the back pressure turbine nozzle chamber and the inner cylinder according to claim 5, wherein the fixing clamp (25) is internally provided with a positioning clamp (251) in a threaded manner, the positioning clamp (251) is arranged in the outer cylinder (1) in a threaded manner, and the positioning clamp (251) is matched with the fixing clamp (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320746340.3U CN219733480U (en) | 2023-04-07 | 2023-04-07 | Supporting structure of back pressure steam turbine nozzle chamber and inner cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320746340.3U CN219733480U (en) | 2023-04-07 | 2023-04-07 | Supporting structure of back pressure steam turbine nozzle chamber and inner cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733480U true CN219733480U (en) | 2023-09-22 |
Family
ID=88061864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320746340.3U Active CN219733480U (en) | 2023-04-07 | 2023-04-07 | Supporting structure of back pressure steam turbine nozzle chamber and inner cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733480U (en) |
-
2023
- 2023-04-07 CN CN202320746340.3U patent/CN219733480U/en active Active
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