CN209800034U - Protection mechanism of steam turbine for power plant - Google Patents
Protection mechanism of steam turbine for power plant Download PDFInfo
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- CN209800034U CN209800034U CN201920531793.8U CN201920531793U CN209800034U CN 209800034 U CN209800034 U CN 209800034U CN 201920531793 U CN201920531793 U CN 201920531793U CN 209800034 U CN209800034 U CN 209800034U
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- supporting
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- steam turbine
- safety protection
- sleeve
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Abstract
The utility model particularly discloses a protection mechanism of a steam turbine for a power plant, which comprises a safety protection cover, a supporting beam and a supporting upright post, wherein a fixed ring seat is fixedly arranged on the lower surface of the bottom end of the safety protection cover, a rotating ring sleeve is arranged in the fixed ring seat in a rotating sealing manner, a sealed cavity is formed between the fixed ring seat and the rotating ring sleeve, and a servo motor for driving the rotating ring sleeve to rotate is also arranged on the fixed ring seat; a plurality of air outlet nozzles with upward outlets are arranged on the rotating ring sleeve at equal intervals, and air in the sealed cavity is discharged through the air outlet nozzles. The utility model discloses the convenience is established the safety protection casing cover on the steam turbine to the realization is to the safety protection effect of steam turbine, just the utility model discloses a swivel becket cover is in the rotating-state, through the gap of the gas outlet nozzle spun air current that is above that can be even cover between safety protection casing and steam turbine, greatly reduced the possibility that the interior steam air current of safety protection casing leaked.
Description
Technical Field
the utility model relates to a steam turbine safety protection technical field specifically is a protection machanism of steam turbine for power plant.
Background
The steam turbine is a rotary power machine which converts the energy of steam into mechanical work, is also called as a steam turbine, is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors, ship propellers and the like; the exhaust steam or intermediate extraction steam of the steam turbine can be used for meeting the heat supply requirements in production and life.
However, the steam turbine is often required to be safely protected in the using process, and in the protection of the steam turbine in the prior art, the protection cover of the steam turbine is inconvenient to disassemble, assemble and maintain, and the steam leakage condition is often easy to occur, and the heat energy contained in the leaked steam can also be lost into the air along with the leakage of the steam, so that the waste of resources is finally caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a protection machanism of steam turbine for power plant to solve the problem that proposes among the above-mentioned background art.
in order to achieve the above object, the utility model provides a following technical scheme:
A protection mechanism of a steam turbine for a power plant comprises a safety protection cover, a supporting beam and supporting upright columns, wherein the two supporting upright columns are respectively and fixedly arranged on a concrete ground, and the supporting beam is horizontally and fixedly erected at the top ends of the two supporting upright columns; a lifting mechanism for lifting the safety protection cover to a specified height is arranged on the supporting cross beam; the ear plate integrally formed with the outer wall of the bottom end of the safety protection cover is fixedly installed on the installation plate through an installation bolt in a dismounting mode, and the support upright post is provided with a height adjusting mechanism for adjusting the height of the installation plate in the vertical direction; the top of the safety protection cover is connected with an air guide pipe, and an induced draft fan is installed on the air guide pipe;
The lower surface of the bottom end of the safety protection cover is fixedly provided with a fixed ring seat, a rotating ring sleeve is arranged in the fixed ring seat in a rotating and sealing mode, a sealed cavity is formed between the fixed ring seat and the rotating ring sleeve, and the fixed ring seat is further provided with a servo motor for driving the rotating ring sleeve to rotate; a plurality of air outlet nozzles with outlets obliquely and upwards are arranged on the rotating ring sleeve at equal intervals, and air in the sealed cavity is discharged through the air outlet nozzles; an air pump is further mounted on one side of the rotating ring sleeve, and an air outlet end of the air pump is connected with an air blowing pipe with an opening arranged in the sealed cavity.
As a further aspect of the present invention: an annular rack is fixedly arranged on the surface of the rotating ring sleeve, and a driving gear meshed with the annular rack is fixedly arranged on an output shaft of the servo motor.
as a further aspect of the present invention: the lifting mechanism comprises a steel wire rope, a double-shaft stretching forward and reverse rotating motor, a supporting rotating shaft and a winding wheel, wherein the double-shaft stretching forward and reverse rotating motor is fixedly mounted on a supporting cross beam, two output shafts of the double-shaft stretching forward and reverse rotating motor are respectively in driving connection with the two supporting rotating shafts, the two winding wheels are respectively fixedly mounted on the two supporting rotating shafts, one end of the steel wire rope is connected with a connecting ring mounted on the safety protection cover, and the other end of the steel wire rope is wound and connected on the winding wheel.
As a further aspect of the present invention: the bottom of supporting beam with still be connected with the direction loop bar between the top of safty shield, wherein the direction loop bar includes fixed mounting at the supporting sleeve and the fixed mounting of supporting beam bottom the support slide bar at safty shield top, wherein the upper portion of supporting the slide bar slides and locates in the supporting sleeve.
As a further aspect of the present invention: height adjusting mechanism includes that the unipolar stretches just reverse motor, lead screw and support swivel nut, wherein, the lead screw rotates and locates the support post inner chamber, and slides from top to bottom and locate the support swivel nut of support post inner chamber passes through the threaded connection mode and installs on the lead screw, just mounting panel fixed mounting is on the support swivel nut, is used for the drive the rotatory unipolar of support post is stretched just reverse motor fixed mounting and is in on the supporting beam.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model discloses utilize height adjusting mechanism to adjust the mounting panel to appointed high back, utilize hoist mechanism to adjust the ascending height of safety protection casing in vertical side and utilize the mounting bolt to fix safety protection casing on the mounting panel to the convenience is established the safety protection casing cover on the steam turbine, with the realization to the safety protection effect of steam turbine, wherein, under the effect of draught fan, the steam air current in the safety protection casing passes through the guide duct and discharges, in addition, the utility model discloses the swivel housing is in the rotation state, through the gap of the gas outlet nozzle spun air current that is above that can be even cover between safety protection casing and steam turbine, greatly reduced the possibility of steam air current leakage in the safety protection casing.
Drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
fig. 1 is a schematic structural diagram of the protection mechanism of the steam turbine for power plant of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
In the figure: 1-safety shield, 2-supporting beam, 3-single-shaft extension forward and reverse rotation motor, 4-supporting upright post, 5-screw rod, 6-supporting threaded sleeve, 7-frame, 8-steam turbine, 9-ear plate, 10-supporting sleeve, 11-supporting slide rod, 12-steel wire rope, 13-double-shaft extension forward and reverse rotation motor, 14-supporting rotating shaft, 15-winding wheel, 16-mounting plate, 17-mounting bolt, 18-connecting ring, 19-fixing ring seat, 20-rotating ring sleeve, 21-annular rack, 22-servo motor, 23-driving gear, 24-air outlet nozzle, 25-air pump, 26-air blowing pipe, 27-induced draft fan and 28-air guide pipe.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, in an embodiment provided by the present invention, a protection mechanism for a steam turbine for a power plant includes a safety protection cover 1, a supporting beam 2 and supporting columns 4, wherein the two supporting columns 4 are respectively and fixedly installed on a concrete ground, and the supporting beam 2 is horizontally and fixedly installed at the top ends of the two supporting columns 4; the supporting cross beam 2 is provided with a lifting mechanism for lifting the safety protection cover 1 to a specified height; with otic placode 9 that 1 bottom outer wall integrated into one piece of safety protection casing set up passes through mounting bolt 17 reassembling type fixed mounting on mounting panel 16, wherein, install on the support post 4 and be used for adjusting the high height regulating mechanism of mounting panel 16 height in the vertical direction, in this embodiment, utilize high regulating mechanism adjustment mounting panel 16 to appointed high back, utilize hoist mechanism to adjust safety protection casing 1 height in vertical direction and utilize mounting bolt 17 to fix safety protection casing 1 on mounting panel 16 to conveniently cover safety protection casing 1 on steam turbine 8, with the safety protection effect of realization to steam turbine 8, wherein steam turbine 8 fixed mounting is in frame 7, and frame 7 fixed mounting is subaerial at the concrete.
Further, in the embodiment of the present invention, the top of the safety protection cover 1 is connected and is provided with the air guide pipe 28, the induced draft fan 27 is installed on the air guide pipe 28, and under the effect of the induced draft fan 27, the steam airflow in the safety protection cover 1 is discharged through the air guide pipe 28.
Further, in the embodiment of the present invention, a fixed ring seat 19 is fixedly installed on the bottom surface of the safety protection cover 1, a rotating ring sleeve 20 is disposed in the fixed ring seat 19 in a rotating manner, a sealed cavity is formed between the fixed ring seat 19 and the rotating ring sleeve 20, the fixed ring seat 19 is further installed with a servo motor 22 for driving the rotating ring sleeve 20 to rotate, wherein a circular rack 21 is installed on the surface of the rotating ring sleeve 20, and a driving gear 23 engaged with the circular rack 21 is fixedly installed on an output shaft of the servo motor 22.
Furthermore, in the embodiment of the present invention, a plurality of air outlet nozzles 24 with outlets inclined upward are arranged on the rotating ring sleeve 20 at equal intervals, and the air in the sealed cavity is discharged through the air outlet nozzles 24; in this embodiment, an air pump 25 is further installed on one side of the rotating ring sleeve 20, an air outlet end of the air pump 25 is connected to an air blowing pipe 26 with an opening arranged in the sealed cavity, and under the action of the air pump 25, external air enters the sealed cavity through the air blowing pipe 26 and is ejected out through an air outlet nozzle 24 to guide steam airflow to flow upwards and be discharged through an air guiding pipe 28, so as to reduce the possibility of steam airflow leakage in the safety shield 1; just the utility model discloses the rotating ring cover 20 of embodiment is in the rotation state, and the gap that covers between safety protection casing 1 and steam turbine 8 that air outlet nozzle 24 spun air current on it can be even has greatly reduced the possibility that the interior steam air current of safety protection casing 1 leaked.
In another embodiment provided by the present invention, the lifting mechanism comprises a steel wire rope 12, a double-shaft-stretching forward and backward rotating motor 13, a supporting rotating shaft 14 and a winding wheel 15, wherein the double-shaft-stretching forward and backward rotating motor 13 is fixedly mounted on the supporting beam 2, two output shafts of the double-shaft-stretching forward and backward rotating motor 13 are respectively in driving connection with the two supporting rotating shafts 14, the two winding wheels 15 are respectively fixedly mounted on the two supporting rotating shafts 14, one end of the steel wire rope 12 is connected with a connecting ring 18 mounted on the safety shield 1, the other end of the steel wire rope 12 is wound on the winding wheel 15, the double-shaft-stretching forward and backward rotating motor 13 is used for driving the supporting rotating shafts 14 to rotate so as to drive the winding wheel 15 to rotate, the steel wire rope 12 can be wound and unwound, so as to pull the safety shield 1 to move upwards or make the, so as to realize the adjustment of the height of the safety shield 1.
Further, in the embodiment of the present invention, a guiding sleeve rod is further connected between the bottom of the supporting beam 2 and the top of the safety protection cover 1, wherein the guiding sleeve rod comprises a supporting sleeve 10 fixedly installed at the bottom of the supporting beam 2 and a supporting sliding rod 11 fixedly installed at the top of the safety protection cover 1, and the upper portion of the supporting sliding rod 11 is slidably disposed in the supporting sleeve 10.
The utility model provides a further embodiment, height adjusting mechanism includes that the unipolar stretches positive and negative motor 3, lead screw 5 and support swivel nut 6, wherein, lead screw 5 rotates and locates 4 inner chambers of support post, and slides from top to bottom and locate the support swivel nut 6 of 4 inner chambers of support post is installed on lead screw 5 through the threaded connection mode, just mounting panel 16 fixed mounting is on supporting swivel nut 6, is used for the drive the rotatory unipolar of support post 4 stretches positive and negative motor 3 fixed mounting in on supporting beam 2, in this embodiment, utilize the unipolar of circular telegram to stretch positive and negative motor 3 drive lead screw 5 clockwise rotation or anticlockwise rotation, can adjust the height of support swivel nut 6, and then realize the regulation to the 16 height of mounting panel.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The protection mechanism of the steam turbine for the power plant comprises a safety protection cover (1), supporting cross beams (2) and supporting upright columns (4), wherein the two supporting upright columns (4) are respectively and fixedly installed on a concrete ground, and the supporting cross beams (2) are horizontally and fixedly erected at the top ends of the two supporting upright columns (4), and is characterized in that a lifting mechanism used for lifting the safety protection cover (1) to an appointed height is installed on each supporting cross beam (2); an ear plate (9) which is integrally formed with the outer wall of the bottom end of the safety protection cover (1) is fixedly arranged on a mounting plate (16) through a mounting bolt (17) in a dismounting mode, and a height adjusting mechanism for adjusting the height of the mounting plate (16) in the vertical direction is arranged on the support upright post (4); the top of the safety protection cover (1) is connected with an air guide pipe (28), and an induced draft fan (27) is installed on the air guide pipe (28);
A fixed ring seat (19) is fixedly installed on the lower surface of the bottom end of the safety protection cover (1), a rotating ring sleeve (20) is arranged in the fixed ring seat (19) in a rotating and sealing mode, a sealed cavity is formed between the fixed ring seat (19) and the rotating ring sleeve (20), and a servo motor (22) used for driving the rotating ring sleeve (20) to rotate is further installed on the fixed ring seat (19); a plurality of air outlet nozzles (24) with outlets obliquely and upwards are arranged on the rotating ring sleeve (20) at equal intervals, and air in the sealed cavity is discharged through the air outlet nozzles (24); an air pump (25) is further mounted on one side of the rotating ring sleeve (20), and an air outlet end of the air pump (25) is connected with an air blowing pipe (26) with an opening arranged in the sealed cavity.
2. The steam turbine protection mechanism for power plants according to claim 1, characterized in that the surface of the rotating ring sleeve (20) is fixedly provided with an annular rack (21), and a driving gear (23) engaged with the annular rack (21) is fixedly provided on the output shaft of the servo motor (22).
3. The protection mechanism of the steam turbine for the power plant according to claim 1, characterized in that the lifting mechanism comprises a steel wire rope (12), a double-shaft-extension forward and reverse rotating motor (13), a supporting rotating shaft (14) and a winding wheel (15), wherein the double-shaft-extension forward and reverse rotating motor (13) is fixedly installed on the supporting beam (2), two output shafts of the double-shaft-extension forward and reverse rotating motor (13) are respectively in driving connection with the two supporting rotating shafts (14), the two winding wheels (15) are respectively and fixedly installed on the two supporting rotating shafts (14), one end of the steel wire rope (12) is connected with a connecting ring (18) installed on the safety shield (1), and the other end of the steel wire rope (12) is wound on the winding wheel (15).
4. The protection mechanism of a steam turbine for power plants according to claim 1, characterized in that a guide loop bar is further connected between the bottom of the supporting beam (2) and the top of the safety shield (1), wherein the guide loop bar comprises a supporting sleeve (10) fixedly installed at the bottom of the supporting beam (2) and a supporting slide bar (11) fixedly installed at the top of the safety shield (1), and the upper portion of the supporting slide bar (11) is slidably disposed in the supporting sleeve (10).
5. The protection mechanism of the steam turbine for power plants according to claim 1, characterized in that the height adjustment mechanism comprises a single-shaft-extension forward and reverse rotation motor (3), a screw rod (5) and a support threaded sleeve (6), wherein the screw rod (5) is rotatably arranged in an inner cavity of the support upright (4), the support threaded sleeve (6) which is slidably arranged in the inner cavity of the support upright (4) is installed on the screw rod (5) in a threaded connection manner, and the mounting plate (16) is fixedly installed on the support threaded sleeve (6) and is used for driving the single-shaft-extension forward and reverse rotation motor (3) which rotates by the support upright (4) to be fixedly installed on the support beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531793.8U CN209800034U (en) | 2019-04-18 | 2019-04-18 | Protection mechanism of steam turbine for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531793.8U CN209800034U (en) | 2019-04-18 | 2019-04-18 | Protection mechanism of steam turbine for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800034U true CN209800034U (en) | 2019-12-17 |
Family
ID=68830034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920531793.8U Active CN209800034U (en) | 2019-04-18 | 2019-04-18 | Protection mechanism of steam turbine for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800034U (en) |
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2019
- 2019-04-18 CN CN201920531793.8U patent/CN209800034U/en active Active
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