CN211350091U

CN211350091U - Gas power plant's combustion engine exhaust diffusion section sound insulation processing apparatus

Info

Publication number: CN211350091U
Application number: CN201922116705.0U
Authority: CN
Inventors: 罗璐; 任杰先
Original assignee: Beijing Hengjing Hesheng Co ltd
Current assignee: Beijing Hengjing Hesheng Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-25
Anticipated expiration: 2029-11-29

Abstract

The utility model provides a gas power plant's combustion engine exhaust diffuser section sound insulation processing apparatus, includes the sound insulation cover body 10, bottom air inlet noise elimination system 6 and top exhaust system 7, its characterized in that: the sound insulation cover body 10 comprises a vertical sound insulation module plate 1 with a vertical face, a horizontal sound insulation module plate 2 with a top face, a horizontal sound insulation module plate 3 with a lateral vertical face, a sound insulation access door 4 and a bottom waterproof platform 5; the bottom air inlet silencing system 6 comprises an air inlet silencer 11 and air inlet aluminum alloy rainproof shutters 12, wherein the air inlet silencer 11 is arranged on two sides of a side vertical surface of the sound insulation cover body 10, which is adjacent to the waste heat boiler air inlet section 8; the top exhaust silencing system 7 comprises an exhaust silencer 13, an exhaust aluminum alloy rainproof louver 14, a reducing diversion silencing pipeline 15 and a forced ventilator 16; the sound insulation treatment device can meet daily maintenance requirements, reduce the temperature of the gas turbine, and effectively control the whole noise of the gas turbine exhaust diffusion section.

Description

Gas power plant's combustion engine exhaust diffusion section sound insulation processing apparatus

Technical Field

The utility model relates to a gas power plant's combustion engine exhaust diffusion section sound insulation processing apparatus belongs to gas power plant noise control field.

Background

In recent years, the society is rapidly developed, people are more and more aware of environmental protection, and in the background of the era, a low-pollution and high-efficiency gas power plant emerges like a bamboo shoot in spring after rain, and is used for replacing a traditional coal-fired power generating set. The emergence of gas power plants not only makes more full use of energy and saves energy, but also provides a great contribution to the field of environmental pollution protection, including noise pollution. Different from coal-fired units with wide noise source distribution and high noise intensity, the noise sources of the gas power plants are relatively concentrated, the overall noise level is low, and the noise control measures are relatively simple.

In the process of continuously exploring the optimal implementation scheme of the noise control of the gas power plant, the noise of the exhaust diffusion section of the gas turbine is always used as the difficult point and the important point of the noise control of the gas power plant due to the characteristics of high noise level, obvious low-frequency characteristic and the like. The traditional method is mainly to wrap a heat-insulation sound-insulation layer on the outer wall of a pipeline of a diffusion section for treatment, but the soft connection part needing to be overhauled is not treated generally, the actual application effect is not ideal, the noise level of the outer wall of the pipeline with the heat-insulation sound-insulation wrapped layer reaches about 95dB (A), and the noise level is still the noise source needing to be treated for the exhaust diffusion section of the combustion engine which is usually arranged in the open air.

The utility model discloses a solve the tradition and fall the not enough of mode of making an uproar, provide a gas turbine exhaust diffusion section sound insulation cover body, this mode of making an uproar not only can satisfy the daily maintenance demand, also makes the whole noise environment of gas turbine exhaust diffusion section obtain controlling simultaneously.

Disclosure of Invention

The utility model discloses mainly provide a gas turbine exhaust diffuser sound insulation processing apparatus to gas power plant's gas turbine exhaust diffuser noise level high, overhaul the demand frequently, administer relative difficulty scheduling problem, this gas turbine exhaust diffuser sound insulation processing apparatus, including the sound insulation cover body 10, bottom air inlet noise elimination system 6 and top exhaust system 7, its characterized in that: the sound insulation cover body 10 comprises a front vertical sound insulation module plate 1, a top horizontal sound insulation module plate 2, a side vertical horizontal sound insulation module plate 3, a sound insulation access door 4 and a bottom waterproof platform 5, wherein the bottom waterproof platform 5 is positioned under the sound insulation cover body 10, and the sound insulation access door 4 is arranged on the front vertical surfaces of two sides of the sound insulation cover body 10; the bottom air inlet silencing system 6 comprises an air inlet silencer 11 and air inlet aluminum alloy rainproof shutters 12, wherein the air inlet silencer 11 is arranged on two sides of a side vertical surface of the sound insulation cover body 10, which is adjacent to the exhaust-heat boiler air inlet section 8, and the air inlet aluminum alloy rainproof shutters 12 are positioned at an air inlet of the air inlet silencer 11; the top exhaust silencing system 7 comprises an exhaust silencer 13, exhaust aluminum alloy rainproof shutters 14, variable diameter flow guide silencing pipelines 15 and forced ventilators 16, wherein the two top exhaust silencing systems 7 are uniformly distributed at the positions, close to the main workshop 9, of the top of the sound insulation cover body 10, the exhaust aluminum alloy rainproof shutters 14 and the variable diameter flow guide silencing pipelines 15 are respectively located on the front side and the rear side of the exhaust silencer 13, and the forced ventilators 16 are located under the variable diameter flow guide silencing pipelines 15.

The sound insulation cover body 10 forms a closed enclosure for the exhaust diffusion section pipeline by means of surrounding structures, and provides ventilation and heat dissipation for the interior of the sound insulation cover by the air intake and exhaust silencing system.

Wherein, the sound insulation cover body 10 covers the soft connection position of the exhaust diffusion section of the gas turbine, and a sufficient maintenance space is reserved in the sound insulation cover body, thereby effectively avoiding the sound leakage phenomenon of the soft connection position of the pipeline.

Drawings

FIG. 1 is a schematic view of the structure of each part of the sound insulation device

FIG. 2 is an exploded view of a bottom intake silencer system

FIG. 3 is an exploded view of the top exhaust muffler system

FIG. 4 is a schematic view showing the installation of a sound-proof device

Wherein:

1 is a vertical sound insulation module board with a vertical surface

2 is a top surface transverse sound insulation module board

3 is lateral vertical face horizontal sound insulation module board

4 is a sound insulation access door

5 is a bottom waterproof platform

6 is bottom air inlet noise elimination system

7 is a top exhaust system

8 is an inlet section of a waste heat boiler

9 is the main factory building

10 is a sound insulation cover body

11 is a muffler of air inlet

12 is rain-proof tripe of air inlet aluminum alloy

13 is a muffler for air exhaust

14 is rain-proof tripe of air exhaust aluminum alloy

15 is reducing diversion noise elimination pipeline

16 is a forced draft fan

Detailed Description

The following description of the embodiments of the invention with reference to the drawings

As shown in the attached figure 4, the sound insulation treatment device for the exhaust diffusion section of the combustion engine comprises a sound insulation cover body 10, a bottom air inlet silencing system 6 and a top exhaust system 7;

as shown in attached drawings 1-3, the sound insulation cover body 10 comprises a vertical sound insulation module plate 1 on the front vertical surface, a horizontal sound insulation module plate 2 on the top surface, a horizontal sound insulation module plate 3 on the side vertical surface, a sound insulation access door 4 and a bottom waterproof platform 5, wherein the bottom waterproof platform 5 is positioned under the sound insulation cover body 10, and the sound insulation access door 4 is arranged on the front vertical surface on two sides of the sound insulation cover body 10; the bottom air inlet silencing system 6 comprises an air inlet silencer 11 and air inlet aluminum alloy rainproof shutters 12, wherein the air inlet silencer 11 is arranged on two sides of a side vertical surface of the sound insulation cover body 10, which is adjacent to the exhaust-heat boiler air inlet section 8, and the air inlet aluminum alloy rainproof shutters 12 are positioned at an air inlet of the air inlet silencer 11; the top air exhaust silencing system 7 comprises an air exhaust silencer 13, air exhaust aluminum alloy rainproof shutters 14, variable diameter flow guide silencing pipelines 15 and a forced ventilator 16, wherein the two top air exhaust silencing systems 7 are positioned at the top of the sound insulation cover body 10 and are uniformly distributed at the position close to the main workshop 9, the air exhaust aluminum alloy rainproof shutters 14 and the variable diameter flow guide silencing pipelines 15 are respectively positioned at the front side and the rear side of the air exhaust silencer 13, and the forced ventilator 16 is positioned under the variable diameter flow guide silencing pipelines 15.

When the device is used, according to the specific size and the noise level of the exhaust diffusion sections of the gas turbines of different gas power plants, after a required maintenance space is reserved, the size and the module plate of the sound insulation cover body 10 are correspondingly selected, the noise elimination quantity of an air inlet and exhaust system is further determined, and a forced ventilator capable of coping with extreme weather conditions is selected according to the local climate environment to ensure smooth airflow and balanced temperature in the sound insulation cover; each sound insulation module board of sound insulation cover body is the structure of simply dismantling, and when the unit had the overhaul demand, the sound insulation cover body can wholly conveniently be demolishd, and after equipment resumes, resumes according to former design rapidly.

Technical effects

The utility model discloses a gas power plant's gas turbine exhaust diffuser sound insulation processing apparatus provides preferred scheme for gas turbine exhaust diffuser noise treatment, can be on ensureing to satisfy the basis of daily maintenance demand, has better noise reduction effect to gas turbine exhaust diffuser noise on the whole, avoids the conventional measure of making an uproar of falling frequently to demolish and newly-built, practices thrift and falls the engineering cost input of making an uproar.

The above description is only one embodiment of the present invention, and not all or only one embodiment, and any equivalent changes adopted by a person skilled in the art to the technical solutions of the present invention through reading the present specification are covered by the claims of the present invention.

Claims

1. The utility model provides a gas power plant's combustion engine exhaust diffuser section sound insulation processing apparatus, includes the sound insulation cover body (10), bottom air inlet noise elimination system (6) and top noise elimination system (7) of airing exhaust, its characterized in that: the sound insulation cover body (10) comprises a vertical sound insulation module plate (1) with a front vertical surface, a horizontal sound insulation module plate (2) with a top surface, a horizontal sound insulation module plate (3) with a side vertical surface, a sound insulation access door (4) and a bottom waterproof platform (5), wherein the bottom waterproof platform (5) is positioned under the sound insulation cover body (10), and the sound insulation access door (4) is arranged on the front vertical surfaces of two sides of the sound insulation cover body (10);

the bottom air inlet silencing system (6) comprises an air inlet silencer (11) and air inlet aluminum alloy rainproof shutters (12), wherein the air inlet silencer (11) is arranged on two sides of a side vertical surface of the sound insulation cover body (10) close to the exhaust-heat boiler air inlet section (8), and the air inlet aluminum alloy rainproof shutters (12) are positioned at an air inlet of the air inlet silencer (11);

the top air exhaust silencing system (7) comprises an air exhaust silencer (13), air exhaust aluminum alloy rainproof shutters (14), a variable diameter flow guide silencing pipeline (15) and a forced ventilator (16), wherein the two top air exhaust silencing systems (7) are located at the positions, close to the main workshop (9), of the top of the sound insulation cover body (10) and are evenly distributed, the air exhaust aluminum alloy rainproof shutters (14) and the variable diameter flow guide silencing pipeline (15) are respectively located on the front side and the rear side of the air exhaust silencer (13), and the forced ventilator (16) is located under the variable diameter flow guide silencing pipeline (15).

2. The gas power plant combustion engine exhaust diffusion section sound insulation treatment device according to claim 1, characterized in that the sound insulation cover body (10) forms a closed enclosure for the exhaust diffusion section pipeline by means of surrounding structures, and ventilation and heat dissipation are provided for the interior of the sound insulation cover body (10) through the bottom air inlet noise elimination system (6) and the top air outlet noise elimination system (7).

3. The gas power plant gas turbine exhaust diffuser sound insulation treatment device according to claim 1, characterized in that the sound insulation cover body (10) accommodates the flexible connection part of the gas turbine exhaust diffuser and reserves a sufficient maintenance space inside.

4. The gas power plant gas turbine exhaust diffuser section sound insulation treatment device of claim 1, characterized in that the sound insulation cover body (10) is provided with a sound insulation access door (4) to facilitate reading of pipeline instruments in the sound insulation cover.