CN216618972U

CN216618972U - Rock silencing device of geothermal power station

Info

Publication number: CN216618972U
Application number: CN202123217431.8U
Authority: CN
Inventors: 张俊; 范建锋; 郑涛; 李硕; 凤思琪
Original assignee: QINGDAO HONGRUI POWER ENGINEERING CONSULTING CO LTD
Current assignee: QINGDAO HONGRUI POWER ENGINEERING CONSULTING CO LTD
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-27
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a rock silencing device for a geothermal power station, which belongs to the technical field of silencers and comprises a silencing pool, wherein a plurality of sound-blocking rock layers are paved inside the silencing pool, a steam exhaust main pipe is arranged in the silencing pool, one end of the steam exhaust main pipe is sealed, the other end of the steam exhaust main pipe is connected with a steam inlet device, a plurality of groups of noise reduction barrels are welded on the pipe wall of the steam exhaust main pipe, and a plurality of noise reduction barrel small holes and disturbance short sections are arranged on the pipe wall of each noise reduction barrel. The utility model has stable and reliable structure, simple installation and construction, less investment, low operation and maintenance cost, more than 40 decibels of total noise elimination amount and obvious noise reduction and elimination effect; the heat displacement of the pipeline when the geothermal wellhead discharges can be completely absorbed, so that the heat stress is eliminated; can bear impurities and stones mixed in steam when the geothermal fluid is discharged, and has good practical application effect.

Description

Rock silencing device of geothermal power station

Technical Field

The utility model relates to a rock silencer for a geothermal power station, and belongs to the technical field of silencers.

Background

According to the working principle of the geothermal power station, water in the depth of the earth crust is heated by hot rocks to generate fluid mainly containing water vapor, non-condensable gas and other impurities, the water vapor is extruded from a wellhead pipeline, and noise caused by flowing and flashing of the wellhead fluid has great influence on the surrounding environment.

When the geothermal wellhead is in an accident state or is tested, high-temperature and high-pressure water vapor needs to be discharged to the air; when the water vapor flow is larger than the flow required by corresponding load, the redundant water vapor also needs to be discharged into the atmosphere, but when the water vapor is directly discharged into the atmosphere, the sound pressure (the distance is 15 meters) of 130dBA is generated, the surrounding environment and the lives of surrounding residents are seriously influenced, so that the noise control becomes an important problem of the geothermal power station, and the adoption of a proper muffler device is the most important solution.

In addition, well head steam discharges still has the discharge in the twinkling of an eye big, and the export discharge velocity is high, and discharge frequency is high characteristics to geothermal fluid corrosivity is big, easily scale deposit, and the steam is mingled with various impurity and stone during the emission, and this all makes traditional steam silencer can't satisfy the operation requirement that geothermal power plant discharged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rock silencing device for a geothermal power station, which is used for solving the problems.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a geothermal power station rock silencing device, includes that inside has laid the amortization pond that the multilayer hinders the sound rock layer, be equipped with the female pipe of steam extraction in the amortization pond, the one end of the female pipe of steam extraction is sealed, and the other end is connected with the admission gear, the welding has the bucket of making an uproar to fall of multiunit on the pipe wall of the female pipe of steam extraction, it is equipped with a plurality of buckets of making an uproar apertures and the disturbance nipple joint of making an uproar to fall on the pipe wall of bucket of making an uproar.

The technical scheme of the utility model is further improved as follows: the steam inlet device comprises a steam inlet pipe, one end of the steam inlet pipe penetrates through the concrete pool wall baffle and the steam exhaust main pipe plugging plate to be inserted into the steam exhaust main pipe, and a gap of 2.0mm is reserved between the steam inlet pipe and the concrete pool wall baffle and between the steam inlet pipe and the steam exhaust main pipe plugging plate.

The technical scheme of the utility model is further improved as follows: the silencing pool is a square pool constructed by concrete, and the top of the square pool is open and is communicated with the atmosphere.

The technical scheme of the utility model is further improved as follows: the steam exhaust main pipe is a double-row pipe arranged in parallel, and a plurality of groups of noise reduction barrels are symmetrically welded on the double-row pipe.

The technical scheme of the utility model is further improved as follows: the small holes of the noise reduction barrel are arranged in parallel along the circumferential direction of the tube wall of the noise reduction barrel, and the diameter of the small holes of the noise reduction barrel is 25-40 mm.

The technical scheme of the utility model is further improved as follows: the disturbance short section is arranged along the circumferential direction of the pipe wall of the noise reduction barrel.

The technical scheme of the utility model is further improved as follows: the steam exhaust main pipe and the noise reduction barrel are fixedly arranged on a concrete foundation of the silencing pool through pipe clamps.

Due to the adoption of the technical scheme, the utility model has the following technical effects:

the utility model has stable and reliable structure, simple installation and construction, less investment, low operation and maintenance cost, more than 40 decibels of total noise elimination amount and obvious noise reduction and elimination effect; the pipeline thermal displacement during the discharge of the geothermal wellhead can be completely absorbed, so that the thermal stress is eliminated; can bear impurities and stones mixed in steam when the geothermal fluid is discharged, and has good practical application effect.

According to the utility model, the frequency spectrum of noise is shifted to high frequency through the small hole of the noise reduction barrel and the disturbance short section on the outer wall, and audible components in the frequency spectrum are reduced, so that the noise is reduced; the acoustically resistive rock layer extends the dwell time of the exhaust fluid in the muffler, further reducing noise.

The utility model adopts the silencing pool, has large flow area and good corrosion resistance, and solves the problems of large discharge amount of fluid at the geothermal well head and serious corrosion and scaling.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the steam intake apparatus of the present invention;

FIG. 3 is a schematic structural diagram of a noise reduction barrel according to the present invention;

the device comprises a silencing pool 1, a noise reduction barrel 2, a steam exhaust main pipe 4, a steam inlet device 4-1, a steam inlet pipe 4-2, a concrete pool wall baffle 4-3, a steam exhaust main pipe plugging plate 5, a disturbance short section 6, a pipe clamp 7 and a noise reduction barrel small hole.

Detailed Description

The utility model is described in further detail below with reference to the following figures and specific embodiments:

a rock silencing device for a geothermal power station is shown in figures 1-3 and comprises a square silencing pool 1 constructed by concrete, the top of the silencing pool 1 is open and communicated with the atmosphere, and multiple layers of sound-resistant rock layers are laid inside the silencing pool, so that the stay time of discharged fluid in the silencing device is prolonged, and noise can be effectively reduced. Be equipped with the female pipe 3 of steam extraction in the amortization pond 1, the female pipe 3 of steam extraction is parallel arrangement's two calandrias, and the one end of two calandrias is sealed, and the other end is connected with admission gear 4, and as shown in figure 1, admission gear 4 includes steam inlet pipe 4-1, the one end of steam inlet pipe 4-1 is passed concrete pool wall baffle 4-2 and the female pipe closure plate 4-3 of steam extraction and is inserted into the female pipe 3 of steam extraction, and all leaves 2.0 mm's clearance between steam inlet pipe 4-1 and concrete pool wall baffle 4-2 and the female pipe closure plate 4-3 of steam extraction, can horizontal slip after guaranteeing steam inlet pipe 4-1 thermal energy expansion.

The symmetrical welding has the bucket 2 of making an uproar that falls of multiunit on the pipe wall of the female pipe 3 of steam extraction, as shown in fig. 2, the pipe wall circumference parallel arrangement of the bucket 2 of making an uproar that falls has a plurality of buckets of making an uproar aperture 7 and disturbance nipple joint 5, and the diameter of the bucket aperture of making an uproar that falls 7 is 25mm ~ 40mm, makes the frequency spectrum of noise move to the high frequency through the disturbance nipple joint of the bucket aperture of making an uproar that falls aperture and outer wall, audible component in the reduction frequency spectrum to the noise reduction.

The steam exhaust main pipe 3 and the noise reduction barrel 2 are fixedly arranged on a concrete foundation of the silencing pool 1 through pipe clamps 6, and the stability of the silencing device is kept.

Claims

1. The utility model provides a geothermal power station rock silencing device which characterized in that: including inside laying amortization pond (1) that the multilayer hinders the sound lithosphere, be equipped with female pipe of steam extraction (3) in amortization pond (1), the one end of female pipe of steam extraction (3) is sealed, and the other end is connected with admission gear (4), the welding has bucket of making an uproar (2) to fall in the multiunit on the pipe wall of female pipe of steam extraction (3), it falls bucket aperture (7) and disturbance nipple joint (5) to be equipped with a plurality of on the pipe wall of bucket of making an uproar (2) to fall.

2. The geothermal power plant rock noise reduction device of claim 1, wherein: the steam inlet device (4) comprises a steam inlet pipe (4-1), one end of the steam inlet pipe (4-1) penetrates through the concrete pool wall baffle (4-2) and the steam exhaust main pipe plugging plate (4-3) to be inserted into the steam exhaust main pipe (3), and a gap of 2.0mm is reserved between the steam inlet pipe (4-1) and the concrete pool wall baffle (4-2) and between the steam exhaust main pipe plugging plate (4-3).

3. The geothermal power plant rock noise reduction device of claim 1, wherein: the silencing pool (1) is a square pool constructed by concrete, and the top of the square pool is open and is communicated with the atmosphere.

4. The geothermal power plant rock noise reduction device of claim 1, wherein: the steam exhaust main pipe (3) is a double-row pipe arranged in parallel, and a plurality of groups of noise reduction barrels (2) are symmetrically welded on the double-row pipe.

5. The geothermal power plant rock noise reduction device of claim 1, wherein: the noise reduction barrel small holes (7) are arranged in parallel along the circumferential direction of the pipe wall of the noise reduction barrel (2), and the diameter of each noise reduction barrel small hole (7) is 25-40 mm.

6. The geothermal power plant rock noise reduction device of claim 1, wherein: the disturbing nipple (5) is arranged along the circumferential direction of the pipe wall of the noise reduction barrel (2).

7. The geothermal power plant rock noise reduction device of claim 1, wherein: the steam exhaust main pipe (3) and the noise reduction barrel (2) are fixedly arranged on a concrete foundation of the silencing pool (1) through pipe clamps (6).