CN116044522A - Vibration and noise reduction device for steam turbine of power plant - Google Patents
Vibration and noise reduction device for steam turbine of power plant Download PDFInfo
- Publication number
- CN116044522A CN116044522A CN202211706236.8A CN202211706236A CN116044522A CN 116044522 A CN116044522 A CN 116044522A CN 202211706236 A CN202211706236 A CN 202211706236A CN 116044522 A CN116044522 A CN 116044522A
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- bottom plate
- noise reduction
- steam turbine
- vibration
- damping
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- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
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- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration and noise reduction device for a steam turbine of a power plant, which comprises a steam turbine, wherein the steam turbine is fixedly arranged on the upper end face of a steam turbine bottom plate, the lower side of the steam turbine bottom plate is provided with a bottom plate, the bottom plate and the steam turbine bottom plate are fixedly supported through a barrier column, a buffer pad is arranged between the barrier column and the bottom plate, the steam turbine bottom plate is fixedly provided with a damping module through a connecting frame, an opening is arranged on the damping module in an array, a damping body is arranged in the opening, the damping body is connected onto the inner wall of the opening through a connecting belt, a noise reduction module is arranged on the outer side of the damping module, and the lower end of the noise reduction module is connected onto the upper end face of the bottom plate.
Description
Technical Field
The invention relates to the technical field of vibration and noise reduction of turbines, in particular to a vibration and noise reduction device of a power plant turbine.
Background
The steam turbine is an external combustion rotary machine capable of converting steam heat energy into mechanical work. After entering the steam turbine, the steam from the boiler sequentially passes through a series of annularly arranged nozzles and blades, and the heat energy of the steam is converted into mechanical energy for rotating the rotor of the steam turbine. The steam is energy converted in different ways in the turbine, so that turbines with different working principles are formed. The steam flow in the steam turbine is continuous and high-speed, and the flow rate per unit area is large, so that a large power can be generated, compared with the reciprocating steam turbine. The high-power steam turbine can adopt higher steam pressure and temperature, so the heat efficiency is higher. In the 19 th century, steam turbines have been developed to increase the power of a single machine and to increase the thermal economy of the plant, while continuously improving safety and reliability, durability, and ensuring convenient operation.
However, because of reasons such as spare part machining precision, installation precision and operation wearing and tearing, steam turbine can produce a large amount of vibrations in the operation in-process, and the vibrations of device also produce a large amount of noise that accompany simultaneously, in prior art, reduce the transmission of the vibrations of steam turbine device and surrounding ground, mainly adopt to add the elastic pad in order to reduce the transmission of vibrations through the deformation of elastic pad with this, nevertheless the deformation range of elastic pad is less and consequently shock attenuation is limited, and in the aspect of making an uproar, only reduces the transmission of noise through isolating computer lab and external space. Therefore, if a method for reducing vibration transmission between a turbine unit and the surrounding ground and noise transmission during operation of a turbine can be devised, the quality of the working environment of surrounding workers can be greatly improved.
Disclosure of Invention
In order to solve the problems, the vibration and noise reduction device for the steam turbine of the power plant is designed, the vibration and noise reduction device for the steam turbine comprises a steam turbine, the steam turbine is fixedly installed on the upper side end face of a steam turbine bottom plate, a bottom plate is arranged on the lower side of the steam turbine bottom plate, the bottom plate and the steam turbine bottom plate are fixedly supported through a barrier column, a buffer cushion is arranged between the barrier column and the bottom plate, the sectional area of the barrier column is obviously smaller than that of the bottom plate and the barrier column, and the buffer cushion is used for reducing vibration transmission between the bottom plate and the steam turbine bottom plate. Increasing the number of the barrier columns and the thickness of the buffer cushion according to the requirement, and adjusting according to the whole weight of the steam turbine and the vibration condition of the steam turbine;
the steam turbine is characterized in that a damping module is fixedly arranged on the steam turbine bottom plate through a connecting frame, an opening is arranged on the damping module in an array, a damping body is arranged in the opening, the damping body is connected onto the inner wall of the opening through a connecting belt, a noise reduction module is arranged on the outer side of the damping module, the lower end of the noise reduction module is connected onto the upper end face of the bottom plate, a gyro damping assembly is arranged on the inner side of the lower end of the noise reduction module, and the gyro damping assembly and the damping body are used for balancing the steam turbine jointly and transmitting the vibration to the steam turbine bottom plate and then to the connecting frame. Specifically, the gyroscope vibration reduction assembly and the turbine bottom plate are respectively used for balancing large-amplitude vibration and small-amplitude unbalanced vibration transmitted to the turbine bottom plate by the turbine, the number of the damping bodies on the vibration reduction module can be adjusted according to the requirement, the damping bodies are used for balancing large-amplitude irregular vibration generated by the turbine bottom plate through inertia of the damping bodies and deformation of the opening, the large-amplitude irregular vibration generated by the turbine bottom plate is reduced, the gyroscope vibration reduction assembly is positioned on the same side shaft, the number of the gyroscope vibration reduction assemblies can be adjusted according to the requirement, and the gyroscope vibration reduction assembly is used for balancing regular vibration on the turbine bottom plate;
the noise reduction module is characterized in that a noise reduction sound insulation layer is fixedly arranged on the inner side surface of the noise reduction module, a reflection carrier arranged in a forty-five-degree angle inclination angle installation mode is fixedly arranged on the noise reduction sound insulation layer, the noise reduction sound insulation layer is used for isolating noise in the inner space of the noise reduction module from being transmitted to the outer side of the noise reduction module, and the reflection carrier is used for reflecting and changing the noise direction in the inner space of the noise reduction module.
It may be preferable that: the damping body is made of iron metal, the connecting belt is made of elastic plastic belt, and according to the requirement, the damping body can be used for replacing copper metal or lead with larger density for balancing larger-amplitude vibration or aluminum metal with smaller density so as to reduce the overall weight of the damping module.
It may be preferable that: the damping module consists of a flat plate part at the lower end and an arc part connected with the upper end parts of the flat plates at the two sides, the whole arch shape of the damping module is formed by the flat plate part and the arc part, and the opening is formed in the flat plate position parts and the arc part positions at the two sides of the damping module, so that the vibration in the left and right directions and the up and down directions of the damping module can be reduced, the front end and the rear end of the damping module can be additionally provided with the flat plate part for closing the front end and the rear end opening of the damping module, and a damping body is arranged on the flat plate part at the front end and the rear end of the damping module for reducing the vibration in the front and rear directions of the bottom plate of the steam turbine.
It may be preferable that: the noise reduction module consists of a front flat plate part, a rear flat plate part, a left flat plate part, a right flat plate part, an arc-shaped part and a noise reduction and insulation layer, wherein the arc-shaped part is connected with the front flat plate part, the rear flat plate part, the left flat plate part, the right flat plate part and the arc-shaped part, and the noise reduction and insulation layer is fixedly arranged on the end face of the flat plate part and the arc-shaped part, which is close to one side of the steam turbine.
It may be preferable that: the gyro vibration reduction assembly comprises a support plate fixedly arranged between the inner side wall, close to the lower side end surface, of the noise reduction module and the upper side end surface of the bottom plate, and a rotating shaft is penetrated in the support plate and rotatably arranged in the support plate;
the rotary table is characterized in that a support is arranged in a space area between the support plates, a rotary groove penetrating through the support is arranged in the support, a rotary table is rotatably arranged between the upper inner wall and the lower inner wall of the rotary groove, the rotary table is supported between the upper inner wall and the lower inner wall of the rotary groove through a rotary shaft and is rotationally connected with the upper inner wall and the lower inner wall of the rotary groove, a power driver is connected to the rotary shaft of the rotary table, support frames are respectively connected to the front end and the rear end of the support frames, one end, far away from the connecting frame, of each support frame is rotationally connected with the front end and the rear end of the support frame, one end, close to the connecting frame, of each support frame is connected with the lower support frame, and the middle part of each support frame is fixedly connected with the rotary shaft.
It may be preferable that: in order to drive the turntable to rotate so that the connecting frame generates a gyroscope effect so as to balance the regular small-amplitude vibration generated by the steam turbine bottom plate, the power driver is connected to the lower end of the rotating shaft end of the turntable, and the power driver is a driving motor fixedly arranged in the inner wall of the lower side of the rotating groove.
It may be preferable that: the connecting frame comprises supporting connection carrier plates fixedly connected to upper side surfaces of left and right ends of the turbine bottom plate, the damping module is fixedly connected to the upper side end surfaces of the supporting connection carrier plates, the lower support is fixedly connected to the lower side end surfaces of the supporting connection carrier plates, the supporting connection carrier plates and the turbine bottom plate are fixedly connected through bolt assemblies, and the noise reducer can be detached or drilled and installed on the basis of an original turbine as required, so that operation is facilitated.
It may be preferable that: in order to reduce the vibration, rigid vibration is generated between the rotating shaft and the lower support through the support frame, a plastic body connecting block is fixedly arranged on one side, close to the rotating disc, of the lower support frame, one end, close to the bottom plate of the steam turbine, of the support frame is rotationally connected with the plastic body connecting block, and rigid vibration generated between the connecting frame and the rotating shaft can be reduced through the deformable property of the plastic body connecting block.
Compared with the prior art, the invention has the beneficial effects that: the turbine vibration damping device has the advantages that vibration generated by the turbine during operation is transmitted to the ground to cause vibration around the turbine, the quality of a working environment is improved, and secondly, the regular vibration and irregular vibration of the turbine are damped respectively, so that the turbine vibration damping device has pertinence, the balance difficulty is reduced, the components are convenient to assemble, only the original turbine device is required to be additionally installed, and the construction efficiency is improved.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of the overall structure of a vibration and noise reduction device of a steam turbine of a power plant;
FIG. 2 is an enlarged schematic view of portion "A" of FIG. 1;
FIG. 3 is a schematic top view of a top balance assembly;
FIG. 4 is an enlarged schematic view of portion "B" of FIG. 1;
fig. 5 is a schematic structural view of a damper.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and for convenience of description, the following orientations will be defined: the vertical, horizontal, front-rear directions described below are identical to the vertical, horizontal, front-rear directions of the projection relationship of fig. 1 itself.
The invention relates to a vibration and noise reduction device of a steam turbine of a power plant, which is further described below with reference to the accompanying drawings:
the invention relates to a vibration and noise reduction device for a steam turbine of a power plant, which is shown by referring to fig. 1-5, and comprises a steam turbine 105, wherein the steam turbine 105 is fixedly arranged on the upper end surface of a steam turbine bottom plate 104, a bottom plate 101 is arranged at the lower side of the steam turbine bottom plate 104, the bottom plate 101 and the steam turbine bottom plate 104 are fixedly supported through a barrier column 102, a buffer 103 is arranged between the barrier column 102 and the bottom plate 101, the cross section area of the barrier column 102 is obviously smaller than that of the bottom plate 101 and the barrier column 102, and the buffer 103 is used for reducing vibration transmission between the bottom plate 101 and the steam turbine bottom plate 104. Increasing the number of the barrier columns 102 and the thickness of the buffer 103 according to the requirement, and adjusting according to the whole weight of the steam turbine 105 and the vibration condition of the steam turbine 105;
the steam turbine bottom plate 104 is fixedly provided with a damping module 114 through a connecting frame, an opening 115 is arranged on the damping module 114 in an array mode, a damping body 116 is arranged in the opening 115, the damping body 116 is connected onto the inner wall of the opening 115 through a connecting belt 151, a noise reduction module 111 is arranged on the outer side of the damping module 114, the lower end of the noise reduction module 111 is connected onto the upper side end face of the bottom plate 101, a gyro damping assembly is arranged on the inner side of the lower end of the noise reduction module 111, and the gyro damping assembly and the damping body 116 are used for balancing the vibration of the steam turbine 105 transmitted to the steam turbine bottom plate 104 and then transmitted to the connecting frame. Specifically, the gyroscope vibration reduction assembly and the turbine bottom plate 104 are respectively used for balancing large-amplitude vibration and small-amplitude unbalanced vibration transmitted to the turbine bottom plate 104 by the turbine 105, the number of the damping bodies 116 arranged on the vibration reduction module 114 can be adjusted according to the requirement, the large-amplitude irregular vibration generated by the turbine bottom plate 104 is balanced through inertia of the damping bodies 116 and deformation of the openings 115, the large-amplitude irregular vibration generated by the turbine bottom plate 104 is reduced, the large-amplitude irregular vibration generated by the turbine bottom plate 104 is located on the same axial direction, the number of the gyroscope vibration reduction assemblies can be adjusted according to the requirement, and the gyroscope vibration reduction assembly is used for balancing regular vibration on the turbine bottom plate 104;
the noise reduction and insulation layer 112 is fixedly arranged on the inner side surface of the noise reduction and insulation module 111, the reflection carrier 113 arranged at the forty-five-degree angle inclination angle is fixedly arranged on the noise reduction and insulation layer 112, the noise reduction and insulation layer 112 is used for isolating noise in the inner space of the noise reduction and insulation module 111 from being transmitted to the outer side of the noise reduction and insulation module 111, and the reflection carrier 113 is used for reflecting and changing the noise direction in the inner space of the noise reduction and insulation module 111.
Advantageously, the damping body 116 is made of ferrous metal, the connecting band 151 is made of plastic band having elasticity, and the damping body 116 can be replaced with copper metal or lead with greater density for balancing larger vibrations or aluminum metal with lesser density to reduce the overall weight of the shock absorbing module 114, as required.
As shown in fig. 1, the damper module 114 is composed of a plate portion at the lower end and an arc portion connected to the upper end portions of the plates at the two sides, the damper module 114 is formed into an overall arch shape by the plate portion and the arc portion, and the opening 115 is formed at the plate position portions and the arc portion positions at the two sides of the damper module 114, so as to reduce the vibration of the damper module 114 in the left-right and up-down directions, and if necessary, the front and rear ends of the damper module 114 are additionally provided with plate portions for closing the openings at the front and rear ends of the damper module 114, and damping bodies 116 are provided on the plate portions at the front and rear ends of the damper module 114 for reducing the vibration of the turbine bottom plate 104 in the front and rear directions.
As shown in fig. 1, the noise reduction module 111 is composed of a front plate portion, a rear plate portion, a left plate portion, a right plate portion, and an arc portion connecting the front plate portion, the rear plate portion, the left plate portion, the right plate portion, and the upper ends of the flat plate portions, and the arc portion, and the noise reduction and insulation layer 112 is fixedly disposed on an end surface of the flat plate portion and the arc portion, which is close to one side of the steam turbine 105.
The gyro vibration damping assembly as shown in fig. 1 to 3 comprises a support plate 106 fixedly arranged between the inner side wall of the noise reduction module 111 near the lower side end surface and the upper side end surface of the bottom plate 101, and a rotating shaft 123 is rotatably arranged in the support plate 106 in a penetrating manner;
the space region between the backup pad 106 is provided with the support 133, be provided with the rotatory groove 142 that runs through the setting about in the support 133, rotatable be provided with carousel 122 between the upside inner wall of rotatory groove 142, carousel 122 support in through the pivot rotatory groove 142 upper and lower side inner wall between and with rotatory groove 142 upper and lower side inner wall between rotate and be connected, carousel 122 pivot department is connected with power driver, the front and back both ends of support 133 are connected with supporting rack 143 respectively, the supporting rack 143 keep away from the one end of link with rotate between the front and back of support 133 and be connected, the supporting rack 143 be close to the one end of link with lower carriage 141 is connected, just the middle part of supporting rack 143 with pivot 123 fixed connection.
1-3, in order to drive the turntable 122 to rotate and further enable the connection frame to generate a gyroscope effect and balance the regular small-amplitude vibration generated by the turbine bottom plate 104, the power driver is connected to the lower end of the rotating shaft end of the turntable 122, and the power driver is a driving motor 134 fixedly arranged in the inner wall of the lower side of the rotating groove 142.
The connecting frame comprises a support connecting carrier plate 126 fixedly connected to the upper side surfaces of the left end and the right end of the turbine bottom plate 104, the damping module 114 is fixedly connected to the upper side end surface of the support connecting carrier plate 126, the lower bracket 141 is fixedly connected to the lower side end surface of the support connecting carrier plate 126, the support connecting carrier plate 126 is fixedly connected with the turbine bottom plate 104 through a bolt assembly 128, and the noise reducer can be detached or drilled on the basis of the original turbine as required, so that the operation is convenient.
Further, in order to reduce the rigid vibration generated between the rotating shaft 123 and the lower bracket 141 through the supporting frame 143 during the vibration, a plastic connecting block 131 is fixedly disposed on one side of the lower bracket 141 near the turntable 122, one end of the supporting frame 143 near the turbine bottom plate 104 is rotatably connected with the plastic connecting block 131, and the rigid vibration generated between the connecting frame and the rotating shaft 123 can be reduced through the deformable property of the plastic connecting block 131.
As shown in fig. 1, damping and buffering are performed between the air inlet and outlet of the steam turbine 105 and the damping module 114 through damping cotton 117.
The turbine vibration and noise reduction device is specifically characterized in that:
the causes of vibration and noise generated during the operation of the steam turbine mainly comprise: 1: when the unit is started, the drainage is not smooth and the expansion is not uniform. 2: during starting, the rotor is thermally bent and the oil film oscillates.
3: main and reheat air temperatures, pressures, vacuum, oil temperatures, and oil pressures change during operation. 4 water impingement or blade dropping occurs. 5: the load and the opening of the speed-regulating valve are changed, and the expansion difference and the tandem axle are changed. 6: generator exciter operation. 7: the rotor mass is unbalanced. 8: the oil temperature is too high or too low, and the bearing oil film is unstable. 9: the rotor is not centered. 10: the radial clearance between the rotor and the cylinder is uneven, and exciting force is generated. 11: dynamic and static wear during operation. The rigidity of the 12-rotor support system is weakened. 13: the rotor falls into the resonance region for giant vibration. 14 electromagnetic principle causes disturbance forces. 15 non-uniform expansion and unstable thermal expansion of the part.
According to the vibration generation reasons, the vibration generation reasons can be divided into regular vibration and irregular vibration, and large-amplitude vibration and small-amplitude vibration;
accordingly, the turbine bedplate 104 is connected with the damping module 114 through the connecting frame, so that when the turbine 105 transmits vibration to the turbine bedplate 104, the turbine bedplate 104 transmits the vibration to the damping module 114 rigidly connected with the turbine bedplate (thereby reducing the vibration energy transmitted to the bedplate 101 by the turbine bedplate 104), and when the damping module 114 synchronously vibrates along with the turbine bedplate 104, the connecting belt 151 is deformed due to the inertia of the damping body 116 to consume the energy when the damping module 114 vibrates and further consume the irregular vibration of the damping module 114 through the damping effect generated by the damping body 116, thereby reducing the irregular vibration of the turbine bedplate 104;
meanwhile, the driving motor 134 is started to drive the turntable 122 to rotate at a high speed, and during the rotation process, part of the regular vibration generated when the rotating shaft of the steam turbine 105 rotates is balanced by the gyroscope effect of the turntable 122;
the vibration transmission between the turbine bottom plate 104 and the bottom plate 101 can be further reduced by the barrier columns 102, so that most of the vibration energy of the turbine bottom plate 104 is transmitted to the vibration absorbing module 114 (the damping effect of the damping body 116 and the deformation effect of the connecting belt 151 are eliminated) and the lower bracket 141 (the regular vibration thereof is eliminated by the gyroscope effect), even if part of the vibration is transmitted, the energy transmitted to the ground by the deformation of the cushion 103 during vibration is smaller, and a good vibration absorbing effect is achieved;
the noise transmission can be reduced by reducing the vibration and isolating the inner space and the outer space by the noise reduction module 111, and the energy loss of the noise in the transmission process can be increased by isolating the noise reduction and isolation layer 112 and reflecting the noise by the reflection carrier 113, so that the noise is reduced.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (6)
1. The utility model provides a device of making an uproar falls in steam turbine damping of power plant, includes the steam turbine, steam turbine fixed mounting is on the upside terminal surface of steam turbine bottom plate, its characterized in that: the lower side of the steam turbine bottom plate is provided with a bottom plate, the bottom plate and the steam turbine bottom plate are fixedly supported through a barrier column, and a buffer cushion is arranged between the barrier column and the bottom plate;
the turbine bottom plate is fixedly provided with a damping module through a connecting frame, an opening is arranged on the damping module in an array manner, a damping body is arranged in the opening, the damping body is connected onto the inner wall of the opening through a connecting belt, the outer side of the damping module is provided with a noise reduction module, the lower end of the noise reduction module is connected onto the upper side end face of the bottom plate, the inner side of the lower end of the noise reduction module is provided with a gyro damping assembly, and the gyro damping assembly and the damping body are used for balancing vibration transmitted to the turbine bottom plate by the turbine and then transmitted to the connecting frame;
the noise reduction module is characterized in that a noise reduction sound insulation layer is fixedly arranged on the inner side surface of the noise reduction module, a reflection carrier arranged in a forty-five-degree angle inclination angle installation mode is fixedly arranged on the noise reduction sound insulation layer, the noise reduction sound insulation layer is used for isolating noise in the inner space of the noise reduction module from being transmitted to the outer side of the noise reduction module, and the reflection carrier is used for reflecting and changing the noise direction in the inner space of the noise reduction module.
2. The vibration and noise reduction device for a steam turbine of a power plant according to claim 1, wherein: the damping body is made of iron metal, and the connecting belt is made of elastic plastic belt.
3. The vibration and noise reduction device for a steam turbine of a power plant according to claim 2, wherein: the gyro vibration reduction assembly comprises a support plate fixedly arranged between the inner side wall, close to the lower side end surface, of the noise reduction module and the upper side end surface of the bottom plate, and a rotating shaft is penetrated in the support plate and rotatably arranged in the support plate;
the support is arranged in a space area between the support plates, a rotary groove penetrating through the support is arranged in the support, a rotary table is rotatably arranged between the inner walls of the upper side and the lower side of the rotary groove, a power driver is connected to a rotary shaft of the rotary table, support frames are respectively connected to the front end and the rear end of the support frame, one end, far away from the connecting frame, of the support frames is rotationally connected with the front end and the rear end of the support frames, one end, close to the connecting frame, of the support frames is connected with the lower support frame, and the middle part of the support frames is fixedly connected with the rotary shaft.
4. A vibration and noise reducing apparatus for a steam turbine of a power plant as defined in claim 3, wherein: in order to drive the turntable to rotate so that the connecting frame generates a gyroscope effect so as to balance the regular small-amplitude vibration generated by the steam turbine bottom plate, the power driver is connected to the lower end of the rotating shaft end of the turntable, and the power driver is a driving motor fixedly arranged in the inner wall of the lower side of the rotating groove.
5. The vibration and noise reduction apparatus of a power plant steam turbine of claim 4, wherein: the connecting frame comprises supporting connecting carrier plates fixedly connected to upper side surfaces of left and right ends of the turbine bottom plate, the damping module is fixedly connected to the upper side end surfaces of the supporting connecting carrier plates, the lower support is fixedly connected to the lower side end surfaces of the supporting connecting carrier plates, and the supporting connecting carrier plates are fixedly connected with the turbine bottom plate through bolt assemblies.
6. The vibration and noise reduction apparatus of a power plant steam turbine of claim 5, wherein: in order to reduce the vibration, rigid vibration is generated between the rotating shaft and the lower support through the support frame, a plastic body connecting block is fixedly arranged on one side, close to the rotating disc, of the lower support frame, one end, close to the bottom plate of the steam turbine, of the support frame is rotationally connected with the plastic body connecting block, and rigid vibration generated between the connecting frame and the rotating shaft can be reduced through the deformable property of the plastic body connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211706236.8A CN116044522A (en) | 2022-12-29 | 2022-12-29 | Vibration and noise reduction device for steam turbine of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211706236.8A CN116044522A (en) | 2022-12-29 | 2022-12-29 | Vibration and noise reduction device for steam turbine of power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116044522A true CN116044522A (en) | 2023-05-02 |
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ID=86130645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211706236.8A Pending CN116044522A (en) | 2022-12-29 | 2022-12-29 | Vibration and noise reduction device for steam turbine of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116044522A (en) |
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2022
- 2022-12-29 CN CN202211706236.8A patent/CN116044522A/en active Pending
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