Ventilation, sound insulation, noise elimination and noise reduction system of steam turbine

Abstract

The utility model provides a steam turbine ventilation, sound insulation, noise elimination and noise reduction system, and relates to the technical field of steam turbine ventilation and sound insulation, the steam turbine ventilation, sound insulation, noise elimination and noise reduction system comprises a base provided with a steam turbine, the base is provided with a winding frame and a winding machine along the length direction of the steam turbine, and the winding frame and the winding machine are respectively arranged on two sides of the steam turbine and are symmetrically distributed relative to the steam turbine. Sound screen cloth used for covering the surface of the steam turbine is wound on the winding machine, the surface of the steam turbine is covered with the sound screen cloth, under the blocking effect of the sound screen cloth, noise generated by the steam turbine is transmitted out from the two frames, the transmitted noise is absorbed through sound absorption curtains arranged at the frames, and when the steam turbine needs to be overhauled and maintained, the sound absorption curtains are arranged on the frames. And under the cooperation effect that the winding frame rotates to release the pull rope and the winding machine rotates to wind the sound screen cloth, the sound screen cloth is wound on the winding machine again, the steam turbine is completely exposed in the view field, maintenance is convenient, and no redundant space is occupied.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam turbine ventilation sound insulation technology field especially, relates to a steam turbine ventilation sound insulation silencing noise reduction system. BACKGROUND

[0002] Steam turbine will produce higher noise in the operation process, and the main sources include mechanical operation vibration, pneumatic noise produced by air flow, electromagnetic noise and the like, in order to realize the ventilation, sound insulation, silencing and noise reduction of steam turbine.

[0003] One steam turbine high -efficient sound shield of prior art, public number is: CN216617595U, including fixed on the ground steam turbine body, the ground on the left and right sides of steam turbine body is fixed with guide rail, the guide rail is connected with sound shield body, and the sound shield body can reciprocate along the guide rail, when the sound shield body moves to one end, the steam turbine body is wrapped in the sound shield body, when moving to the other end, the steam turbine body is located outside the sound shield body, the sound shield body includes arched sound insulation board, head end sound insulation board and tail end sound insulation board, the head end sound insulation board is fixedly connected with the head end of arched sound insulation board, and the tail end sound insulation board and the tail end of arched sound insulation board are detachably connected, the tail end of the sound shield body is inclined, and the bottom of the sound shield body protrudes forward, the edge of the tail end sound insulation board is provided with horizontal forward protruding rim, the rim is matched with the tail end of the sound shield body, and the tail end sound insulation board is arranged on the tail end of the sound shield body through the rim.

[0004] But the way of horizontally moving sound shield body needs to occupy certain site in actual operation, that is, when steam turbine is overhauled, the sound shield body needs to slide to the other end of the track guide, so as to ensure that the sound shield body slides smoothly, the guide laying position cannot be installed with other equipment, so that the part of redundant space cannot be fully utilized, which is not conducive to the distribution and installation of steam turbine and related equipment in narrow space. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art and provides a steam turbine ventilation sound insulation silencing noise reduction system.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a steam turbine ventilation sound insulation silencing noise reduction system, including the base that installs steam turbine, the base is installed with take-up reel and winding machine along the length direction of steam turbine, the take-up reel and winding machine are respectively located on both sides of steam turbine and are symmetrically distributed about steam turbine, the winding machine is wound with sound screen cloth for covering the surface of steam turbine, two strands of pull ropes are wound on the take-up reel, and the two strands of pull ropes are respectively arranged close to the both ends of the wide edge of the sound screen cloth and are connected with the both ends of the wide edge of the sound screen cloth, the frame is arranged between the take-up reel and winding machine and is located at both ends of steam turbine, and the frame is installed with sound absorption curtain for covering the end of steam turbine.

[0007] Preferably, the frame is arranged in an inverted "U" shape and is detachably connected to the wire reel and the winding machine through bolts on both sides of the frame.

[0008] Preferably, the outer side edges of the opposite surfaces of the two frames are respectively inserted with two long edges of the soundproof cloth.

[0009] Preferably, the outer side edges of the opposite surfaces of the two frames are respectively inserted with two long edges of the soundproof cloth.

[0010] Preferably, the connecting strip is arranged in a strip shape, and the frame is arranged in a C shape at the inserted part of the connecting strip.

[0011] Preferably, a plurality of insertion holes are arranged on the surface of the frame, and at least two threaded columns are arranged on the frame inside the soundproof cloth passing route.

[0012] Preferably, the threaded column is arranged in a T-shaped rotary body, the small end of the threaded column is threadedly connected with the insertion hole, and the stepped surface of the threaded column is used for lap joint with the pull rope.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1. In the utility model, the soundproof cloth covers the surface of the steam turbine, the noise generated by the steam turbine is transmitted from the two frames under the blocking effect of the soundproof cloth, the transmitted noise is absorbed by the sound absorbing curtain arranged at the frame, when the steam turbine needs to be overhauled and maintained, the soundproof cloth is re-wound on the winding machine under the cooperation of the rotation release of the pull rope by the wire reel and the rotation winding of the soundproof cloth by the winding machine, the steam turbine is completely exposed in the field of vision for convenient maintenance, and no extra space is occupied.

[0015] 2. In the utility model, the stepped surface of the threaded column is used for lap joint with the pull rope, the insertion hole 6 on the surface of the frame is convenient for adjusting the number and distribution interval of the threaded columns according to the moving length of the soundproof cloth, and the pull rope connected with the soundproof cloth in the soundproof cloth winding state passes through the side edge of the frame by using the plurality of threaded columns on the frame, so that the soundproof cloth is pulled and moved along the side edge of the frame when the pull rope is wound. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of a steam turbine ventilation sound insulation noise elimination and noise reduction system is provided for the utility model;

[0017] Figure 2 A rear view structure schematic view of a steam turbine ventilation sound insulation noise elimination and noise reduction system is provided for the utility model; Figure 1

[0018] Figure 3 ​The utility model provides a steam turbine ventilation sound insulation silencing noise reduction system Figure 1 The sectional structure schematic diagram of

[0019] Figure 4 The utility model provides a steam turbine ventilation sound insulation silencing noise reduction system Figure 3 The sectional structure schematic diagram of.

[0020] Legend: 1, base; 2, sound screen cloth; 3, sound absorbing curtain; 4, frame; 5, threaded column; 6, jack; 7, winding stand; 8, connecting strip; 9, winding machine; 10, guide rail; 11, pull rope. Specific embodiments

[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further explained below in combination with drawings and examples.It needs to be explained that the embodiment of the present application and the features in the embodiment can be combined mutually without conflict.

[0022] In the following description, a lot of specific details are set forth in order to give a full understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0023] As Figures 1-4As shown, a steam turbine ventilation sound insulation noise reduction system, comprising a base 1 installed with a steam turbine, the base 1 is installed with a winding frame 7 and a winding machine 9 along the length direction of the steam turbine, the winding frame 7 and the winding machine 9 are respectively located on both sides of the steam turbine and are symmetrically distributed about the steam turbine, the winding machine 9 is wound with a sound screen cloth 2 for covering the surface of the steam turbine, the winding frame 7 is wound with two strands of pull ropes 11, the two strands of pull ropes 11 are respectively arranged near the two ends of the wide edge of the sound screen cloth 2 and are respectively connected with the two ends of the wide edge of the sound screen cloth 2, the frame 4 is arranged between the winding frame 7 and the winding machine 9 at the positions of both ends of the steam turbine, the frame 4 is installed with a sound absorbing curtain 3 for covering the end of the steam turbine, the frame 4 is arranged in an inverted "U" shape and the two sides of the frame 4 are respectively detachably connected with the winding frame 7 and the winding machine 9 through bolts, during assembly, the winding frame 7 and the winding machine 9 are respectively installed on both sides of the steam turbine on the base 1, then the frame 4 is vertically installed at both ends of the winding frame 7 and the winding machine 9, the two strands of pull ropes 11 wound on the winding frame 7 are respectively connected at the positions of the two ends of the wide edge of the sound screen cloth 2 wound on the winding machine 9, through the cooperation of the rotation of the winding frame 7 to wind the pull ropes 11 and the rotation of the winding machine 9 to release the sound screen cloth 2, the sound screen cloth 2 covers the surface of the steam turbine, the noise generated by the steam turbine is transmitted from the two frames 4 under the blocking action of the sound screen cloth 2, and the transmitted noise is absorbed by the sound absorbing curtain 3 arranged at the frame 4; when the steam turbine needs to be overhauled and maintained, through the cooperation of the rotation of the winding frame 7 to release the pull ropes 11 and the rotation of the winding machine 9 to wind the sound screen cloth 2, the sound screen cloth 2 is rewound on the winding machine 9, and the steam turbine is completely exposed in the field of view for easy maintenance, in addition, during actual operation, the rotation of the shaft in the winding machine 9 and the winding frame 7 can be driven by installing a motor thereon, so as to release or wind the sound screen cloth 2 on the winding machine 9, or wind or release the pull ropes 11 on the winding frame 7.

[0024] In addition, in order to facilitate and stabilize the position of the sound screen cloth 2: the opposite outer sides of the two frames 4 are respectively inserted with the two long edges of the sound screen cloth 2, the two long edges of the sound screen cloth 2 are respectively fixedly installed with a connecting strip 8, the opposite outer sides of the two frames 4 are respectively fixedly installed with a guide rail 10 inserted with the connecting strip 8, the connecting strip 8 is arranged in a strip shape, the inserted part of the frame 4 and the connecting strip 8 is arranged in a C shape, so as to ensure that the long edges of the sound screen cloth 2 can only move along the surface of the frame 4, preventing the middle part of the sound screen cloth 2 from falling under the action of gravity in the use state.

[0025] In order to facilitate the movement of the pull rope 11: the surface of the frame 4 is provided with a plurality of insertion holes 6, and at least two threaded columns 5 are arranged on the route of the sound screen cloth 2 in the frame 4, the threaded column 5 is a T-shaped rotating body, and the small end of the threaded column 5 is screw connected with the insertion hole 6, the surface step of the threaded column 5 is used for lap joint with the pull rope 11, the insertion hole 6 on the surface of the frame 4 is convenient for adjusting the number and distribution interval of the threaded column 5 used according to the moving length of the sound screen cloth 2, and a plurality of threaded columns 5 on any frame 4 are used to ensure that the pull rope 11 connected with the sound screen cloth 2 passes through the side edge of the frame 4 in the winding state of the sound screen cloth 2, so that the sound screen cloth 2 is pulled along the side edge of the frame 4 when the pull rope 11 is wound.

[0026] The working principle is that the winding frame 7 and the winding machine 9 are installed on the base 1 on both sides of the steam turbine, the frame 4 is installed at both ends of the winding frame 7 and the winding machine 9, a certain number of threaded columns 5 are installed on the surface of the frame 4 through the insertion hole 6, the two pull ropes 11 wound on the winding frame 7 pass through a plurality of threaded columns 5 on the two frames 4 respectively, and are fixed with the wide edges of the sound screen cloth 2 wound on the winding machine 9, under the cooperation of the winding of the pull rope 11 by the winding frame 7 and the release of the sound screen cloth 2 by the winding machine 9, the sound screen cloth 2 covers the surface of the steam turbine, and the noise generated by the steam turbine is transmitted from the two frames 4 under the blocking action of the sound screen cloth 2, and the transmitted noise is absorbed by the sound absorbing curtain 3 arranged at the frame 4.

[0027] The wiring diagram of the motor in the utility model belongs to the common knowledge in the field, and the working principle is a known technology, and the type is selected according to actual use, so the control mode and wiring arrangement of the motor are not explained in detail.

[0028] The above is only a preferred embodiment of the utility model, and is not limited in other forms, and any skilled person in the art can change or modify the above disclosed technology content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the utility model to the above embodiments still belongs to the protection scope of the utility model technical scheme.

Claims

1. A steam turbine ventilation soundproofing and noise reduction system, comprising a base (1) on which a steam turbine is installed, characterized in that: The base (1) is provided with a winding frame (7) and a winding machine (9) along the length direction of the steam turbine, the winding frame (7) and the winding machine (9) are symmetrically distributed on both sides of the steam turbine, the winding machine (9) is provided with a sound screen cloth (2) for covering the surface of the steam turbine, the winding frame (7) is provided with two tension ropes (11), the two tension ropes (11) are arranged near the two ends of the wide side of the sound screen cloth (2) and are connected with the two ends of the wide side of the sound screen cloth (2) respectively, the frame (4) is arranged between the winding frame (7) and the winding machine (9) at the positions of the two ends of the steam turbine, and the sound absorbing curtain (3) for covering the end of the steam turbine is arranged on the frame (4).

2. The steam turbine venting, soundproofing, silencing, and noise reducing system of claim 1, wherein: The frame (4) is provided in an inverted "U" shape, and the two sides of the frame (4) are detachably connected with the winding frame (7) and the winding machine (9) through bolts.

3. The steam turbine venting, soundproofing, sound abatement, and noise reduction system of claim 1, wherein: The opposite outer sides of the two frames (4) are respectively inserted into the two long sides of the sound screen cloth (2).

4. The steam turbine venting, soundproofing, silencing, and noise reducing system of claim 3, wherein: The two long sides of the sound screen cloth (2) are provided with connecting strips (8) fixedly installed on the inner and outer sides, and the opposite outer sides of the two frames (4) are provided with guide rails (10) fixedly installed and inserted into the connecting strips (8).

5. The steam turbine venting, soundproofing, sound abatement, and noise reduction system of claim 4, wherein: The connecting strip (8) is provided in a strip shape, and the inserted part of the frame (4) and the connecting strip (8) is provided in a C shape.

6. The steam turbine venting, soundproofing, sound abatement, and noise reduction system of claim 1, wherein: A plurality of insertion holes (6) are formed on the surface of the frame (4), and at least two threaded columns (5) are arranged in the frame (4) on the route of the sound screen cloth (2).

7. The steam turbine venting, soundproofing, sound abatement, and noise reduction system of claim 6, wherein: The threaded column (5) is provided in a T-shaped rotating body, the small head end of the threaded column (5) is threadedly connected with the insertion hole (6), and the surface step of the threaded column (5) is used for overlapping the tension rope (11).

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