Noise reduction turbine outer cover
By designing a noise reduction turbine housing containing a turbine structure and a generator, the problem of limited noise reduction effect in the prior art is solved, effective recycling and utilization of noise energy is achieved, and the quality and economic benefits of the working environment are improved.
Patent Information
- Application Number
- CN202510108971.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-05-09
AI Technical Summary
The existing turbine housing has limited effect in reducing noise, and cannot convert the mechanical energy of noise into other useful energy, and there is a limitation of passive acceptance.
Design a noise-reducing turbine housing, including a mirror-symmetric housing, access sliding door, static pressure track, energy-absorbing cylinder and generator. A turbine structure is arranged inside the energy-absorbing cylinder, which uses steam to drive the turbine to rotate, convert mechanical energy into electrical energy, and store and transmit electricity through the generator.
By converting the mechanical energy of noise into electrical energy, energy recovery and utilization is realized, while effectively reducing the noise during the turbine operation, reducing the impact on the surrounding environment, improving the quality of the working environment, and reducing operating costs.
Smart Images
Figure CN119957332A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of silencing and noise reduction, and in particular to a noise-reducing steam turbine cover. Background Art
[0002] Steam turbines generate a lot of noise when they are running, including mechanical noise, steam noise, etc. The outer cover can absorb and isolate these noises to a certain extent. By using sound insulation materials to make the outer cover or setting a sound insulation layer inside the outer cover, the impact of the noise generated by the steam turbine during operation on the surrounding environment can be reduced, making the working environment more comfortable.
[0003] The current turbine cover is generally sprayed with sound insulation material or attached to the inner wall of the cover for noise reduction, but the noise reduction effect of this method is relatively limited. It simply consumes noise energy and cannot convert the mechanical energy of noise into other useful energy. It can only passively accept it and has limitations. Summary of the invention
[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the present invention is to provide a noise-reducing steam turbine cover to reduce the noise generated by the operation of the steam turbine.
[0005] The objective of the present invention can be achieved through the following technical solutions: a noise-reducing steam turbine cover, used for reducing the steam noise generated by a steam turbine, comprising two covers which are symmetrically mounted on the outside of the steam turbine, wherein an inspection port is formed on the surface of the cover, and an inspection sliding door is provided at the inspection port, and the inspection sliding door is slidably connected to the cover through a static pressure track; an energy absorbing cylinder and a generator are connected to the steam outlet of the steam turbine inside the cover, and a turbine structure is provided inside the energy absorbing cylinder. The turbine structure rotates after being driven by steam and inputs mechanical energy into the generator, and the generator is used to convert the mechanical energy into electrical energy and store it, thereby transmitting electricity to the static pressure track.
[0006] In some embodiments of the present invention, legs are installed at the bottom corners of the outer cover.
[0007] In some embodiments of the present invention, the static pressure track is installed at the contact point between the upper end of the inspection sliding door and the surface of the outer cover, the lower end of the inspection sliding door is connected with a horizontal plate, the top surface of the horizontal plate is rotatably connected with a plurality of rollers, a guide rod is installed at the lower end of the outer cover, the extension direction of the guide rod is consistent with the sliding direction of the inspection sliding door, and the rollers are rollingly connected to the guide rod.
[0008] In some embodiments of the present invention, the plurality of rollers are arranged on both sides of the guide rod in a mirror-symmetrical manner.
[0009] In some embodiments of the present invention, a handle is installed on the surface of the inspection sliding door, and inspection windows are installed on the top and front of the inspection sliding door.
[0010] In some embodiments of the present invention, both ends of the energy absorbing cylinder are formed with gaps for steam to enter and exit, a rotating shaft is arranged inside the energy absorbing cylinder along its axial direction, and the turbine structure includes support plates rotatably installed at both ends of the rotating shaft, and a kinetic energy part is connected between the two support plates.
[0011] In some embodiments of the present invention, filters are installed at the notches.
[0012] In some embodiments of the present invention, at least one end of the rotating shaft is connected to an input end of the generator.
[0013] In some embodiments of the present invention, the support plate is of a triangular structure, and the three end corners of the support plate are connected to the kinetic energy part, the kinetic energy part has a U-shaped opening extending axially when viewed from above, and at least one end of the U-shaped opening is connected to a sound absorbing board, and the sound absorbing board is made of sound absorbing material.
[0014] In some embodiments of the present invention, the kinetic energy member is a split structure, and two kinetic energy members with mirror-symmetrical positions are detachably connected via a connecting member.
[0015] Beneficial effects of the invention: Compared with traditional methods, this technical solution combines multiple advantages such as noise reduction, energy recovery, convenient maintenance and structural stability through innovative design, providing a more optimized solution for the operation and maintenance of the turbine. It has significant advantages in improving the quality of the working environment, reducing operating costs, and extending equipment life, and has good application prospects and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] Figure 1 is a stereoscopic view of the present invention; Figure 2 is a side view of the present invention; Figure 3 The outer cover and the inspection sliding door of the present invention are three-dimensional Figure 1 ; Figure 4 The outer cover and the inspection sliding door of the present invention are three-dimensional Figure 2 ; Figure 5 is a three-dimensional view of the inspection sliding door of the present invention; Figure 6 It is a three-dimensional view of the steam turbine, the energy absorbing cylinder and the generator in the present invention; Figure 7It is a three-dimensional view of the energy absorbing cylinder and the generator in the present invention; Figure 8 It is the internal structure diagram of the energy absorbing tube in the present invention; Fig. 9 It is a three-dimensional view of the support plate, kinetic energy member and sound absorbing plate in the present invention.
[0018] In the figure: 1. steam turbine; 2. outer cover; 21. support leg; 22. static pressure track; 23. guide rod; 3. maintenance sliding door; 31. handle; 32. maintenance window; 33. cross plate; 34. roller; 4. energy absorbing cylinder; 41. filter screen; 42. rotating shaft; 43. support plate; 44. kinetic energy part; 45. connecting part; 46. sound absorbing panel; 5. generator. DETAILED DESCRIPTION
[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] like Figure 1 , Figure 2 , Figure 6 As shown, a noise-reducing steam turbine cover is used to reduce the steam noise generated by the steam turbine 1, including two covers 2 that are symmetrically mounted on the outside of the steam turbine 1, and an inspection port is formed on the surface of the cover 2. An inspection sliding door 3 is provided at the inspection port, and the inspection sliding door 3 is slidably connected to the cover 2 through a static pressure track 22; an energy absorption cylinder 4 and a generator 5 are connected to the steam outlet of the steam turbine 1 inside the cover 2, and a turbine structure is provided inside the energy absorption cylinder 4. The turbine structure rotates after being driven by steam and inputs mechanical energy into the generator 5. The generator 5 is used to convert the mechanical energy into electrical energy and store it, so as to transmit electricity to the static pressure track 22.
[0021] On the whole, the two outer covers 2 that are symmetrically mounted on the outside of the steam turbine 1 are mainly used to protect and reduce the noise of the steam turbine 1. It wraps the steam turbine 1 inside to form a relatively independent space, which can effectively prevent the noise generated during the operation of the steam turbine 1 from propagating to the outside and reduce the impact on the surrounding environment. At the same time, the outer cover 2 provides space for the installation and operation of the internal energy-absorbing cylinder 4, generator 5 and other equipment, and provides a stable working environment for the entire noise reduction and energy recovery system. After the steam generated by the operation of the steam turbine 1 flows out from the steam outlet, part of the steam enters the energy-absorbing cylinder 4. The steam entering the energy-absorbing cylinder 4 will impact the kinetic energy part 44 and the sound-absorbing plate 46, so that the rotating shaft 42 of the turbine structure drives the kinetic energy part 44 to rotate. In this process, part of the kinetic energy of the steam is converted into the mechanical energy of the turbine structure. At the same time, the sound-absorbing plate 46 vibrates under the impact of the steam, absorbs part of the noise, and has a further noise reduction effect. The rotating turbine structure transmits mechanical energy to the generator 5 through the rotating shaft 42. The generator 5 converts the input mechanical energy into electrical energy and stores it according to the principle of electromagnetic induction for use by the static pressure track 22, so as to realize the automatic opening of the maintenance sliding door 3.
[0022] like Figure 3 , Figure 4 As shown, in some embodiments of the present invention, a support leg 21 is installed at the bottom corner of the outer cover 2. The support leg 21 is installed at the bottom corner of the outer cover 2 to support the outer cover 2, ensure the stability of the outer cover 2 in the installation position, keep the outer cover 2 and its internal equipment balanced, and disperse the weight of the outer cover 2 and the equipment to prevent the outer cover 2 from being deformed or unstable due to gravity, thereby providing a stable foundation for the entire device.
[0023] like Figure 3 , Figure 5 As shown, in some embodiments of the present invention, the static pressure track 22 is installed at the contact point between the upper end of the inspection sliding door 3 and the surface of the outer cover 2, the lower end of the inspection sliding door 3 is connected with a horizontal plate 33, the top surface of the horizontal plate 33 is rotatably connected with a plurality of rollers 34, the lower end of the outer cover 2 is installed with a guide rod 23, the extension direction of the guide rod 23 is consistent with the sliding direction of the inspection sliding door 3, and the roller 34 is rollingly connected with the guide rod 23. The static pressure track 22 is driven by a cylinder to provide sliding support for the inspection sliding door 3, so that the inspection sliding door 3 can slide smoothly on its surface, reduce friction and vibration during the sliding process, ensure that the opening and closing operations of the inspection sliding door 3 are smoother and more stable, and improve the operability and safety of the equipment; and the horizontal plate 33 is located at the lower end of the inspection sliding door 3, providing an installation base for the roller 34. The roller 34 is rotatably connected to the top surface of the cross plate 33 and is rollingly connected to the guide rod 23 at the lower end of the outer cover 2. By cooperating with the guide rod 23, the sliding direction of the inspection sliding door 3 is guided, making the inspection sliding door 3 more stable when opening and closing, avoiding jamming or deviation.
[0024] like Figure 5As shown, as an example, a plurality of rollers 34 are arranged on both sides of the guide rod 23 in a mirror-symmetrical manner, so that the inspection sliding door 3 can slide more smoothly.
[0025] like Figure 3 As shown, in some embodiments of the present invention, a handle 31 is installed on the surface of the inspection sliding door 3, and the handle 31 is an operating component for manually controlling the opening or closing of the inspection sliding door 3; after opening the inspection sliding door 3, the inspection port can be entered, which is a passage into the interior of the outer cover 2, providing an operable opening for operators to conveniently inspect, maintain and repair the steam turbine 1 and the equipment in the outer cover 2. The inspection window 32 is installed on the top and front of the inspection sliding door 3, which is convenient for operators to observe the operating status of the steam turbine 1 in the outer cover 2 without opening the inspection sliding door 3, such as checking whether there is abnormal steam leakage, component wear, vibration, etc., which helps to timely discover equipment problems and ensure the safe and stable operation of the equipment.
[0026] like Figure 7 , Figure 8 As shown, in some embodiments of the present invention, both ends of the energy absorbing cylinder 4 are formed with gaps for steam to enter and exit, and a rotating shaft 42 is arranged inside the energy absorbing cylinder 4 along its axial rotation, and the turbine structure includes support plates 43 rotatably mounted at both ends of the rotating shaft 42, and a kinetic energy member 44 is connected between the two support plates 43. As a key component connecting the steam outlet of the steam turbine 1 and the turbine structure, the energy absorbing cylinder 4 is an important link in realizing energy recovery and noise reduction. The gaps at both ends are channels for steam to enter and exit, so that part of the steam discharged from the steam outlet of the steam turbine 1 enters the interior of the energy absorbing cylinder 4. A rotating shaft 42 is arranged inside the energy absorbing cylinder 4 along the axial rotation to provide support for the installation and rotation of the turbine structure, and at the same time transfer the kinetic energy of the steam to the turbine structure.
[0027] like Figure 7 As shown, in some embodiments of the present invention, a filter screen 41 is installed at each notch. The filter screen 41 has a filtering function, which can prevent impurities carried in the steam from entering the energy absorbing cylinder 4, avoid impurities from damaging the turbine structure and other components in the energy absorbing cylinder 4, and ensure the long-term stable operation of the energy absorbing cylinder 4 and the turbine structure.
[0028] like Figure 7 , Figure 8 As shown, in some embodiments of the present invention, at least one end of the rotating shaft 42 is connected to the input end of the generator 5. The rotating shaft 42 is the core supporting component of the turbine structure, connecting the supporting plates 43 at both ends, and transmitting the rotational motion of the turbine structure to the generator 5. It is an important component for converting steam kinetic energy into mechanical energy, carrying the rotational force from the steam impact, so that the entire turbine structure can rotate.
[0029] like Figure 8 , Fig. 9As shown, in some embodiments of the present invention, the support plate 43 is in a triangular structure and is installed at both ends of the rotating shaft 42 to provide a stable connection point for the kinetic energy part 44. The triangular structure has good stability and can evenly disperse the steam impact force on the kinetic energy part 44, ensuring that the turbine structure maintains a stable mechanical structure when subjected to steam impact, and preventing damage due to uneven force.
[0030] like Figure 8 , Fig. 9 As shown, the three end corners of the support plate 43 are connected to a kinetic member 44, which has a U-shaped opening extending axially when viewed from above, and at least one end of the U-shaped opening is connected to a sound absorbing plate 46, which is made of a sound absorbing material, which may be ceramic fiber or glass fiber.
[0031] The above scheme is described in detail. The function of the kinetic energy part 44 is to directly bear the impact force of the steam, drive the entire turbine structure to rotate under the impetus of the steam, and convert the kinetic energy of the steam into the mechanical energy of the turbine structure. The U-shaped opening structure of the kinetic energy part 44 increases the contact area between the kinetic energy part 44 and the steam. When the steam enters the energy absorption cylinder 4 from the steam outlet of the steam turbine 1, it can more fully impact the surface of the U-shaped opening, so that the kinetic energy part 44 can absorb the kinetic energy of the steam more effectively. Compared with other shapes, the U-shaped opening allows the steam to form a more complex flow path inside the opening, increasing the action time of the steam and the kinetic energy part 44, thereby improving the conversion efficiency of the steam energy, so that more steam kinetic energy is converted into the mechanical energy of the kinetic energy part 44, and then drives the turbine structure to rotate, providing more mechanical energy input for the generator 5. In addition, the U-shaped opening structure has certain advantages in mechanics, which can make the kinetic energy part 44 more evenly disperse the force to the entire structure when it is impacted by steam. Compared with some simple plane or linear structures, the U-shaped opening can better resist deformation and stress concentration caused by the impact force of steam, and improve the structural stability and durability of the kinetic energy part 44. This stable structure helps to ensure the long-term stable operation of the turbine structure, reduce the maintenance and replacement work required due to damage to the kinetic energy part 44, and reduce operating costs. At the same time, the U-shaped opening can guide the flow direction of the steam entering the energy absorbing cylinder 4 to a certain extent. By reasonably designing the angle and shape of the U-shaped opening, the steam can flow along the expected path in the energy absorbing cylinder 4, better impact the kinetic energy part 44, avoid the steam from forming unnecessary eddies or turbulence in the energy absorbing cylinder 4, and improve the efficiency and stability of the steam flow, thereby further improving the performance of the entire device.
[0032] The above scheme is described in detail. The U-shaped opening structure of the kinetic energy member 44 is connected to a sound absorbing plate 46 at least at one end. This structural design allows the noise sound waves to have more opportunities to contact the sound absorbing plate 46 when propagating inside the U-shaped opening. The noise is reflected multiple times in the U-shaped opening, increasing the chances of the sound absorbing plate 46 absorbing the noise energy. At the same time, the shape of the U-shaped opening helps to guide the noise sound waves to propagate in the direction of the sound absorbing plate 46, so that the sound absorbing plate 46 can more effectively convert the mechanical energy of the noise into heat energy, thereby enhancing the noise reduction effect of the entire device and reducing the impact of the noise generated during the operation of the steam turbine 1 on the surrounding environment.
[0033] like Fig. 9 As shown, in some embodiments of the present invention, the kinetic energy member 44 is a split structure, and two kinetic energy members 44 with mirror-symmetrical positions are detachably connected by a connecting member 45. The kinetic energy member 44 adopts a split structure, and two kinetic energy members 44 with mirror-symmetrical positions are detachably connected by a connecting member 45, which is convenient for disassembly, maintenance and replacement, improves the maintainability of the turbine structure, and reduces the maintenance cost and difficulty. The connecting member 45 can be a screw or a block.
[0034] Through the coordinated work of the above components, the technical solution organically combines the protection, noise reduction and energy recovery of the steam turbine 1 to form a relatively complete system. In practical applications, it is also necessary to consider the manufacturing process, material properties and adaptability of the operating environment of each component to ensure the performance and life of the entire system.
[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0036] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.
Claims
1. A noise-reducing steam turbine cover, used for reducing the noise of steam generated by a steam turbine, characterized in that: It comprises two outer covers which are symmetrically mounted on the outside of the steam turbine, wherein an inspection port is formed on the surface of the outer cover, and an inspection sliding door is arranged at the inspection port, and the inspection sliding door is slidably connected to the outer cover through a static pressure track; an energy absorbing cylinder and a generator are connected to the steam outlet of the steam turbine inside the outer cover, and a turbine structure is arranged inside the energy absorbing cylinder. The turbine structure rotates after being driven by steam and inputs mechanical energy into the generator, and the generator is used to convert the mechanical energy into electrical energy and store it, so as to transmit electricity to the static pressure track.
2. The noise reduction steam turbine cover according to claim 1, characterized in that: Support legs are installed at the bottom corners of the outer cover.
3. The noise reduction steam turbine cover according to claim 1, characterized in that: The static pressure track is installed at the contact point between the upper end of the inspection sliding door and the surface of the outer cover. The lower end of the inspection sliding door is connected with a horizontal plate. The top surface of the horizontal plate is rotatably connected with multiple rollers. A guide rod is installed at the lower end of the outer cover. The extension direction of the guide rod is consistent with the sliding direction of the inspection sliding door. The rollers are rollingly connected to the guide rod.
4. The noise reduction steam turbine cover according to claim 3, characterized in that: The plurality of rollers are arranged on both sides of the guide rod in a mirror-symmetrical manner.
5. The noise reduction steam turbine cover according to claim 1, characterized in that: A handle is installed on the surface of the inspection sliding door, and inspection windows are installed on the top and front of the inspection sliding door.
6. The noise reduction steam turbine cover according to claim 1, characterized in that: Both ends of the energy absorbing cylinder are formed with gaps for steam to enter and exit, a rotating shaft is arranged inside the energy absorbing cylinder along its axial direction, and the turbine structure includes support plates rotatably mounted at both ends of the rotating shaft, and a kinetic energy member is connected between the two support plates.
7. The noise reduction steam turbine cover according to claim 6, characterized in that: Filters are installed at the notches.
8. The noise reduction steam turbine cover according to claim 6, characterized in that: At least one end of the rotating shaft is connected to the input end of the generator.
9. The noise reduction steam turbine cover according to claim 6, characterized in that: The support plate is triangular in structure, and the three end corners of the support plate are connected to the kinetic energy member, the kinetic energy member has a U-shaped opening extending axially when viewed from above, and at least one end of the U-shaped opening is connected to a sound absorbing board, and the sound absorbing board is made of sound absorbing material.
10. The noise reduction steam turbine cover according to claim 6, characterized in that: The kinetic energy parts are of split structure, and two kinetic energy parts with mirror-symmetrical positions are detachably connected via a connecting piece.