CN212080500U

CN212080500U - Silencer for water supply pipeline of thermal power plant

Info

Publication number: CN212080500U
Application number: CN202020498117.8U
Authority: CN
Inventors: 耿合强; 曹世坤; 高卜; 王永坤
Original assignee: Yufeng Industry Group Corp
Current assignee: Yufeng Industry Group Corp
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-12-04
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a water supply pipe silencer of steam power plant, including inlet tube, outlet pipe and hush pipe, inlet tube and outlet pipe set up respectively at the both ends of hush pipe, its characterized in that: the silencing pipe comprises a first-stage silencing pipe, a second-stage silencing pipe, a damping cavity and a sound absorption cavity, the water inlet pipe is communicated with the first-stage silencing pipe, the second-stage silencing pipe is fixed on the outer wall of the first-stage silencing pipe, one end of the damping cavity is fixed with the first-stage silencing pipe, the other end of the damping cavity is communicated with the water outlet pipe, and the sound absorption cavity is wrapped outside the first-stage silencing pipe and the damping cavity. The utility model discloses four layers inhale the sound and fall the noise processing, reach very outstanding noise cancelling effect when using.

Description

Silencer for water supply pipeline of thermal power plant

Technical Field

The utility model relates to a technical field of silencer, especially a water supply pipe silencer of steam power plant.

Background

Thermal power plant can adjust the discharge of heat supply water supply pipe according to different periods of time when heat supply season, if flow variation is great, or when changing very fast, can cause the impact to the pipeline, and then arouse great noise, and the noise also belongs to a kind and pollutes, is in noise pollution's operational environment for a long time, can cause the harm to workman's hearing, arouses the psychological discomfort even.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an overcome prior art not enough, simple structure, convenient to use's the water supply pipe silencer that can effectively reduce water supply pipe noise pollution of steam power plant.

In order to achieve the above purpose, the technical means adopted by the utility model are as follows:

the utility model provides a thermal power plant's water supply pipe silencer, includes inlet tube, outlet pipe and hush pipe, and inlet tube and outlet pipe set up respectively at the both ends of hush pipe, and the key lies in:

the silencing pipe comprises a primary silencing pipe, a secondary silencing pipe, a damping cavity and a sound absorption cavity, the water inlet pipe is communicated with the primary silencing pipe, the secondary silencing pipe is fixed on the outer wall of the primary silencing pipe, one end of the damping cavity is fixed with the primary silencing pipe, the other end of the damping cavity is communicated with the water outlet pipe, and the sound absorption cavity is coated outside the primary silencing pipe and the damping cavity;

the whole cone that is of one-level hush pipe, the whole cask shape that is of second grade hush pipe, the middle part at one-level hush pipe is fixed to the one end of second grade hush pipe, and the other end passes through the fixed plate to be fixed with the inside wall of shock attenuation chamber, and one-level hush pipe, second grade hush pipe and fixed plate all are provided with the hush hole.

Preferably, a first buffer area is arranged at the joint of the first-stage silencing pipe and the water inlet pipe, and an included angle of 60 degrees is formed between the first buffer area and the central axis of the silencing pipe.

Preferably, a damping layer is arranged on the inner side wall of the damping cavity.

Preferably, a second buffer area is arranged at the joint of the damping cavity and the first-stage silencing pipe, and an included angle of 45 degrees is formed between the second buffer area and the central axis of the silencing pipe.

Preferably, a rectifying area is arranged at the connecting position of the damping cavity and the water outlet pipe, and an included angle of 30 degrees is formed between the rectifying area and the central axis of the silencing pipe.

Preferably, at least two sound-absorbing fillers are layered and filled in the sound-absorbing cavity.

The utility model has the advantages that: the two-pole silencing pipe has been designed altogether, can carry out twice effectual amortization to the water in the pipeline, and the cushion chamber can subduct rivers to the impact of pipeline, forms the processing of making an uproar of falling for the third time, and outermost sound absorbing chamber is going on the fourth and is inhaling the sound and falling the noise processing, and the processing of making an uproar of inhaling of four layers altogether can make this device reach very outstanding noise cancelling effect when using.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

In a specific embodiment, as shown in fig. 1, a muffler for a water supply pipeline of a thermal power plant comprises a water inlet pipe 1, a water outlet pipe 2 and a silencing pipe 3, wherein the water inlet pipe 1 and the water outlet pipe 2 are respectively arranged at two ends of the silencing pipe 3,

the silencing pipe 3 comprises a primary silencing pipe 4, a secondary silencing pipe 5, a damping cavity 6 and a sound absorption cavity 7, the water inlet pipe 1 is communicated with the primary silencing pipe 4, the secondary silencing pipe 5 is fixed on the outer wall of the primary silencing pipe 4, one end of the damping cavity 6 is fixed with the primary silencing pipe 4, the other end of the damping cavity is communicated with the water outlet pipe 2, and the sound absorption cavity 7 is coated outside the primary silencing pipe 4 and the damping cavity 6;

one-level hush pipe 4 is whole to be conical, conical hush pipe can reduce the velocity of flow with the rivers of overspeed in the cone, reach the purpose of certain noise reduction, second grade hush pipe 5 is whole to be cask shape, the middle part at one-level hush pipe 4 is fixed to the one end of second grade hush pipe 5, the other end is fixed with damping chamber 6's inside wall through fixed plate 8, one-level hush pipe 4, second grade hush pipe 5 and fixed plate 8 all are provided with the hush hole, rivers pass through from second grade hush pipe 5's lateral wall and tip, all can be handled by the amortization, and damping chamber 6's rivers also can produce the effect of amortization processing behind the hush hole of fixed plate 8.

As right the utility model discloses an it is right that the improvement, in order to reduce the velocity of flow of rivers, be provided with first buffer 9 in the junction of one-level hush pipe 4 and inlet tube 1, first buffer 9 becomes 60 contained angles with hush pipe 3's axis, forms an enlarged space, and rivers can slow down the velocity of flow through here.

As right the utility model discloses an it is improved, be provided with buffer layer 10 at the inside wall of damper chamber 6, impulsive force and vibrations that absorption rivers that can be abundant produced reduce resonance phenomenon.

As right the utility model discloses an it is improved, in order to further reduce the velocity of flow of rivers, be provided with second buffer 11 in the junction of shock attenuation chamber 6 and one-level hush pipe 4, second buffer 11 becomes 45 contained angles with hush pipe 3's axis, forms the second enlarged space once more, and rivers can slow down the velocity of flow once more through here.

As right the utility model discloses an it is improved, be provided with rectifying area 12 in the junction of damper chamber 6 and outlet pipe 2, rectifying area 12 becomes 30 contained angles with hush pipe 3's axis, can assemble the rivers through amortization processing, provides sufficient pressure discharge hush pipe 3.

As right the utility model discloses an it is improved, in order to give full play to the sound effect of inhaling sound chamber 7, it has two at least kinds of sound fillers of inhaling to fill in the layering in sound chamber 7, can fully absorb the noise that the vibrations of different wavelengths produced, eliminates noise pollution as far as possible.

The utility model discloses at the during operation, hot water gets into from water inlet 1, after first buffer 9, the velocity of flow is preliminary slowed down, then flow through in the bloop of first hush pipe 4, rivers are by the first noise reduction processing after the aperture, later rivers partly get into second hush pipe 5, partly directly get into shock attenuation chamber 6, rivers that get into in second hush pipe 5 are again through the noise reduction processing of bloop for the second time, hot water arrives in shock attenuation chamber 6, under the effect of second buffer 11, rivers further slow down, rivers after twice slow down, rivers that can make different flow velocity that water inlet 1 got into remain unanimous basically, can not produce the change that neglects little big, even if there is the change of some rivers, buffer layer 10 also can absorb the vibrations and the impact force of rivers, avoid producing too big noise because of resonance, then rivers arrive rectification zone 12, the water flow after the noise reduction and deceleration treatment is collected and then discharged from the water outlet 2.

The utility model discloses successively through quartic noise reduction processing, can very effectually reach the effect of making an uproar and falling the noise, the perfect problem of having solved water supply pipe noise pollution.

Claims

1. The utility model provides a steam power plant water supply pipe silencer, includes inlet tube (1), outlet pipe (2) and hush pipe (3), and inlet tube (1) and outlet pipe (2) set up respectively at the both ends of hush pipe (3), its characterized in that: the silencing pipe (3) comprises a primary silencing pipe (4), a secondary silencing pipe (5), a damping cavity (6) and a sound absorption cavity (7), the water inlet pipe (1) is communicated with the primary silencing pipe (4), the secondary silencing pipe (5) is fixed on the outer wall of the primary silencing pipe (4), one end of the damping cavity (6) is fixed with the primary silencing pipe (4), the other end of the damping cavity is communicated with the water outlet pipe (2), and the sound absorption cavity (7) is coated outside the primary silencing pipe (4) and the damping cavity (6); the whole cone that is of one-level hush pipe (4), the whole cask shape that is of second grade hush pipe (5), the middle part at one-level hush pipe (4) is fixed to the one end of second grade hush pipe (5), and the other end passes through fixed plate (8) to be fixed with the inside wall in shock attenuation chamber (6), and one-level hush pipe (4), second grade hush pipe (5) and fixed plate (8) all are provided with the hush hole.

2. The muffler of claim 1, wherein: a first buffer area (9) is arranged at the joint of the first-stage silencing pipe (4) and the water inlet pipe (1), and an included angle of 60 degrees is formed between the first buffer area (9) and the central axis of the silencing pipe (3).

3. The muffler of claim 1, wherein: the inner side wall of the damping cavity (6) is provided with a damping layer (10).

4. The muffler of claim 1, wherein: a second buffer area (11) is arranged at the joint of the damping cavity (6) and the first-stage silencing pipe (4), and the second buffer area (11) and the central axis of the silencing pipe (3) form an included angle of 45 degrees.

5. The muffler of claim 1, wherein: a rectifying area (12) is arranged at the joint of the damping cavity (6) and the water outlet pipe (2), and an included angle of 30 degrees is formed between the rectifying area (12) and the central axis of the silencing pipe (3).

6. The muffler of claim 1, wherein: at least two sound absorption fillers are filled in the sound absorption cavity (7) in a layered mode.