CN218235258U - Natural gas power generation device with noise reduction structure - Google Patents

Abstract

The utility model relates to a power generation facility field discloses a natural gas power generation facility with amortization structure, including outer shell and natural gas generator, the fixed mechanical noise amortization layer that is provided with of outer shell inner wall, natural gas generator sets up inside the outer shell, the fixed exhaust noise amortization mechanism that is provided with of natural gas generator up end, natural gas generator lower extreme rigidity is provided with unable adjustment base, natural gas generator is provided with a plurality of spring damper with unable adjustment base fixed connection. The utility model discloses in, the outer shell that the device accessible set up subducts the noise that mechanical motion produced, and the exhaust noise amortization mechanism of setting subducts natural gas generator during operation exhaust emission's noise, subducts the noise intensity of natural gas generator during operation diffusion to operational environment greatly, avoids the hearing damage that personnel appear because of receiving the noise influence of long-time high strength among the operational environment.

Description

Natural gas power generation device with noise reduction structure

Technical Field

The utility model relates to a power generation facility field especially relates to a natural gas power generation facility with amortization structure.

Background

The power generation device is a mechanical device for converting other energy into electric energy by utilizing a mechanical structure, wherein the natural gas power generation device is a clean high-efficiency power generation device using natural gas as a main fuel, and compared with other power generation devices, the natural gas power generation device has the technical advantages of quick starting, good economy and small emission pollution and is used for meeting the power supply requirements in the industrial field and the domestic power utilization field, the natural gas power generation device can generate strong noise in the operation process, the noise mainly comes from two aspects of natural gas generator exhaust vibration and natural gas engine internal mechanical structure motion noise, silencing measures can be adopted to reduce the interference of the noise to the surrounding environment, and the silencing structure is a mechanical structure for attenuating or blocking the noise propagation.

The general natural gas power generation device does not adopt a silencing measure, can generate a large amount of high-intensity noise during working, enables workers in the same working environment to be interfered by strong noise, and is easy to cause hearing damage of the workers, so that the technical personnel in the field provide the natural gas power generation device with a silencing structure to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the natural gas power generation device with amortization structure that proposes, the outer shell that the device accessible set up subducts the noise that mechanical motion produced, the exhaust noise amortization mechanism of setting subducts natural gas generator during operation exhaust emission's noise, subduct the noise intensity that natural gas generator during operation spread to operational environment greatly, avoid among the operational environment personnel because of receiving the hearing damage that the noise influence of long-time high strength appears.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a natural gas power generation device with a silencing structure comprises an outer casing and a natural gas generator, wherein a mechanical noise silencing layer is fixedly arranged on the inner wall of the outer casing, the natural gas generator is arranged in the outer casing, an exhaust noise silencing mechanism is fixedly arranged on the upper end face of the natural gas generator, a fixed base is fixedly arranged at the lower end of the natural gas generator, and the natural gas generator is fixedly connected with the fixed base and provided with a plurality of spring shock absorbers;

through above-mentioned technical scheme, mechanical noise amortization layer is used for reducing the mechanical noise that the natural gas generator operation produced, exhaust noise amortization mechanism is used for eliminating the noise that produces the exhaust emission and reduces, and is a plurality of the vibration energy of transmission to base and ground when the spring damper can absorb natural gas generator operation reduces the vibration noise that produces between natural gas generator and the fixed baseplate.

Further, the mechanical noise silencing layer comprises an inner-layer sound insulation board and heat-resistant sound absorption cotton, an outer-layer sound insulation board is fixedly arranged between the inner-layer sound insulation board and the heat-resistant sound absorption cotton, the inner-layer sound insulation board and the outer-layer sound insulation board are both made of polyester fiber sound absorption boards, and conical grooves are formed in the end face, close to one side of the natural gas generator, of the heat-resistant sound absorption cotton at equal intervals;

through above-mentioned technical scheme, heat-resisting sound cotton, inlayer acoustic celotex board and the outer acoustic celotex board of inhaling constitutes jointly, and the mechanical noise amortization layer is used for eliminating the most mechanical noise that the natural gas generator produced, makes the noise that spreads to the outer container shell outside reduce greatly, and is a plurality of the bell jar can effectively increase heat-resisting sound cotton of inhaling and the surface area of air contact, increases sound wave absorption efficiency.

Furthermore, the natural gas generator is fixedly connected with an exhaust gas pipe and a gas pipe, and the middle part of the exhaust gas pipe is connected with the exhaust noise silencing mechanism;

through the technical scheme, the waste gas generated by the natural gas generator enters the exhaust noise silencing mechanism through the waste gas pipe to be subjected to silencing treatment.

Furthermore, the exhaust noise silencing mechanism comprises a silencing passage, a front rectifying cavity is arranged at the position close to the front end inside the silencing passage, a silencing cavity is fixedly arranged at the position close to the middle inside the silencing passage, a front rectifying plate is fixedly arranged between the silencing cavity and the front rectifying cavity, a rear rectifying plate is fixedly arranged at the position close to the rear end inside the silencing cavity, and a plurality of electric heating wires are fixedly arranged inside the silencing cavity and the front rectifying cavity;

according to the technical scheme, the airflow entering the exhaust noise silencing mechanism firstly enters the front rectifying cavity and then enters the silencing cavity through the holes formed in the surface of the front rectifying plate for silencing, the flow speed of the airflow can be effectively reduced, and the rear rectifying plate is used for rectifying the airflow to be discharged out of the exhaust noise silencing mechanism so that the airflow can rapidly and smoothly flow out of the exhaust noise silencing mechanism.

Furthermore, a plurality of central partition plates and a plurality of auxiliary partition plates are fixedly arranged inside the silencing cavity, a plurality of silencing cones are fixedly arranged on the inner wall of the silencing cavity, the front end faces and the rear end faces of the central partition plates and the auxiliary partition plates, and the silencing cones are made of porous silencing cotton;

according to the technical scheme, the plurality of central partition plates and the plurality of auxiliary partition plates divide the interior of the silencing cavity into the plurality of independent spaces, so that discharged waste gas sequentially passes through the plurality of independent spaces generated by division, the residence time of the waste gas in the interior of the silencing cavity is prolonged, the air speed is reduced, sound waves generated by gas flowing are reflected for multiple times between the plurality of central partition plates and the plurality of auxiliary partition plates through the plurality of central partition plates and the plurality of auxiliary partition plates, the reflected sound waves collide with the original sound waves to offset the energy of one wave component of the sound waves, and meanwhile, in the process of multiple reflection of the sound waves, silencing cones made of a plurality of porous silencing cotton materials and fixedly arranged on the front end faces and the rear end faces of the plurality of central partition plates and the plurality of auxiliary partition plates on the inner wall of the silencing cavity can absorb the sound waves for multiple times.

Furthermore, one ends of the exhaust gas pipe and the gas pipe, which are far away from the natural gas generator, respectively penetrate through the side wall of the outer casing and are communicated with the outside of the outer casing, and hard rubber connecting pipes are fixedly arranged in the middle parts of the exhaust gas pipe and the gas pipe;

through the technical scheme, the hard rubber connecting pipe can generate certain deformation under the action of stress, so that the vibration generated by the operation of the buffer device can be well counteracted, and the vibration generated by the waste gas pipe and the gas pipe is reduced.

Furthermore, a plurality of heat exchangers are fixedly arranged in the outer case shell at positions close to the natural gas generator;

through above-mentioned technical scheme, it is a plurality of heat exchanger is used for carrying out the heat exchange with the inside air of outer casing, and then satisfies the inside heat dissipation demand of outer casing.

Furthermore, a box shell front cover is fixedly arranged on the front end face of the outer box shell through bolts, and a hollow glass observation window is embedded in the center of the box shell front cover;

through the technical scheme, case shell protecgulum and cavity glass observation window border position all are equipped with syllable-dividing seal ring, prevent the inside sound wave of outer container spills from the joint gap, set up the case shell protecgulum is fixed through a plurality of bolts, is convenient for get into through dismantling the inside condition of outer container shell is overhauld, and the staff passes through the inside condition of outer container shell can be seen directly perceivedly to the cavity glass observation window.

The utility model discloses following beneficial effect has:

1. the utility model provides a pair of natural gas power generation facility with amortization structure, the device is through being provided with outer casing in natural gas generator outside, and the inside setting of outer casing is inhaled the sound cotton by heat-resisting, the noise that the mechanical noise amortization layer that inner sound-proof board and outer acoustic celotex board constitute jointly produced mechanical operation effectively reduces, it is cotton to inhale the sound heat-resisting, inner sound-proof board and outer acoustic celotex board are because the porous structure of self, have good absorption effect to the sound wave, can effectively reduce and give off the outside noise of outer casing.

2. The utility model provides a pair of natural gas power generation facility with amortization structure, the device is through handling natural gas generator exhaust waste gas, become a plurality of independent spaces through the amortization intracavity part that passes through waste gas, make exhaust waste gas loop through a plurality of independent spaces of cutting apart the production, extension waste gas is at amortization intracavity portion detention time, the energy is consumed simultaneously, slow down the air velocity, reduce the vibrations that the pipeline received the air current influence and produced, reduce exhaust noise, the sound wave carries out multiple reflection between a plurality of central baffles and a plurality of auxiliary baffle in the amortization intracavity simultaneously, the sound wave of reflection and the sound wave in original direction collide each other, offset a sound wave ripples branch energy, simultaneously in sound wave multiple reflection in-process, set up around amortization intracavity wall and a plurality of auxiliary baffle the amortization awl of the fixed a plurality of porous amortization cotton materials that set up of terminal surface can carry out multiple absorption to the sound wave, further reduce sound wave intensity, reduce the noise that exhaust emission produced.

3. The utility model provides a pair of natural gas power generation device with amortization structure, the device subducts through the main noise that produces natural gas generator during operation, and outer shell subdues the noise that mechanical motion produced, sets up exhaust noise amortization mechanism and subducts natural gas generator during operation exhaust emission's noise, adopts multiple measure, has effectively reduced the noise intensity that the device spreads in the external environment, avoids producing the hearing damage to the staff who is in operational environment with.

Drawings

Fig. 1 is a schematic axial view of a natural gas power plant with a sound attenuation structure according to the present invention;

fig. 2 is a schematic front sectional view of a natural gas power generation device with a noise reduction structure according to the present invention;

fig. 3 is a schematic structural view of a mechanical noise silencing layer of a natural gas power generation device with a silencing structure according to the present invention;

fig. 4 is an exhaust noise silencer structure diagram of a natural gas power plant with a silencing structure according to the present invention.

Illustration of the drawings:

1. an outer case; 2. an exhaust gas pipe; 3. a gas pipe; 4. a hollow glass observation window; 5. a case shell front cover; 6. a mechanical noise deadening layer; 7. an inner layer acoustic panel; 8. a heat exchanger; 9. an outer layer acoustic panel; 10. heat-resistant sound-absorbing cotton; 11. a tapered groove; 12. an exhaust noise silencing mechanism; 13. a sound deadening passage; 14. a silencing cone; 15. an auxiliary partition plate; 16. a front fairing plate; 17. an electric heating wire; 18. a front rectification chamber; 19. a sound-deadening chamber; 20. a rear fairing; 21. a central partition; 22. a hard rubber connecting pipe; 23. a natural gas generator; 24. a spring damper; 25. and fixing the base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a natural gas power generation facility with amortization structure, includes outer casing 1 and natural gas generator 23, covers outer casing 1 in the natural gas generator 23 outside, and the diffusion is to external noise when having significantly reduced natural gas generator 23 operation, and outer casing 1 inner wall is fixed through modes such as veneer or screw lock solid and is provided with mechanical noise amortization layer 6. The natural gas generator 23 is arranged in the outer case 1, the upper end face of the natural gas generator 23 is fixedly provided with the exhaust noise silencing mechanism 12, the lower end position of the natural gas generator 23 is fixedly provided with a fixed base 25, and a plurality of spring shock absorbers 24 are fixedly connected between the natural gas generator 23 and the fixed base 25;

the noise that produces during the operation of natural gas generator 23 mainly derives from the noise that produces during natural gas generator 23 internal mechanical structure collides each other and exhaust emission, be used for reducing the mechanical noise that natural gas generator 23 operation produced through mechanical noise amortization layer 6, exhaust noise amortization mechanism 12 is used for eliminating the reduction to the noise that exhaust emission produced, a plurality of spring damper 24 can absorb the vibrations energy of natural gas generator 23 operation transmission to base and ground, reduce the vibrations noise that produces between natural gas generator 23 and the fixed baseplate 25, make the device diffusion to external noise greatly reduced through multiple mode, reduce field work personnel's physical and mental burden.

Mechanical noise damping layer 6 includes inlayer acoustic celotex board 7 and heat-resisting sound cotton 10 of inhaling, inlayer acoustic celotex board 7 and heat-resisting sound are inhaled between the cotton 10 and are fixed through modes such as veneer and be provided with outer acoustic celotex board 9, inlayer acoustic celotex board 7 and outer acoustic celotex board 9 use the material to be the polyester fiber abatvoix, heat-resisting sound of inhaling cotton 10 is close to the equidistant most mechanical noise that tapered groove 11 mechanical noise damping layer 6 was used for eliminating natural gas generator 23 and produces of inhaling, make the diffusion to 1 outside noise of outer clamshell reduce greatly, a plurality of tapered grooves 11 can effectively increase the heat-resisting surface area of inhaling cotton 10 and air contact of inhaling, increase sound wave absorption efficiency. The natural gas generator 23 is fixedly connected with the exhaust gas pipe 2 and the gas pipe 3, the middle part of the exhaust gas pipe 2 is connected with the exhaust noise silencing mechanism 12, and the exhaust gas generated by the natural gas generator 23 enters the exhaust noise silencing mechanism 12 through the exhaust gas pipe 2 to be subjected to silencing treatment.

Specifically, the exhaust noise silencing mechanism 12 includes a silencing passage 13, a front rectifying cavity 18 is disposed inside the silencing passage 13 near the front end, a silencing cavity 19 is fixedly disposed inside the silencing passage 13 near the middle, a front rectifying plate 16 is fixedly disposed between the silencing cavity 19 and the front rectifying cavity 18, a rear rectifying plate 20 is fixedly disposed near the rear end of the silencing cavity 19, a plurality of heating wires 17 are fixedly disposed inside the silencing cavity 19 and the front rectifying cavity 18, airflow entering the exhaust noise silencing mechanism 12 first enters the front rectifying cavity 18 and then enters the silencing cavity 19 through a hole formed in the surface of the front rectifying plate 16 for silencing, so that the flow velocity of the airflow can be effectively reduced, and the rear rectifying plate 20 is used for rectifying the airflow about to be discharged from the exhaust noise silencing mechanism 12 to enable the airflow to rapidly and smoothly flow out of the exhaust noise silencing mechanism 12;

a plurality of central partition boards 21 and a plurality of auxiliary partition boards 15 are fixedly arranged in the silencing cavity 19, a plurality of silencing cones 14 are fixedly arranged on the inner wall of the silencing cavity 19, the front end faces and the rear end faces of the central partition boards 21 and the auxiliary partition boards 15, the silencing cones 14 are made of porous silencing cotton, the inner wall of the silencing cavity 19 and the front end faces and the rear end faces of the central partition boards 21 and the auxiliary partition boards 15 divide the inner part of the silencing cavity 19 into a plurality of independent spaces, discharged waste gas sequentially passes through the independent spaces, residence time of the waste gas in the silencing cavity 19 is prolonged, gas velocity is reduced, sound waves generated by gas flow are reflected for a plurality of times between the central partition boards 21 and the auxiliary partition boards 15 through the central partition boards 21 and the auxiliary partition boards 15, the reflected sound waves collide with original sound waves, one-wave energy of the sound waves is counteracted, and the sound waves can be absorbed for a plurality of times by the plurality of porous silencing cones 14 made of porous silencing cotton fixedly arranged on the inner wall of the silencing cavity 19 and the front end faces and the central partition boards 21 and the front end faces and the auxiliary partition boards 15 in the sound waves in the sound wave multiple reflection process;

the one end that waste gas pipe 2 and gas pipe 3 kept away from natural gas power generation machine 23 runs through outer casing 1 lateral wall respectively and leads to outer casing 1 outside, waste gas pipe 2 and 3 middle parts of gas pipe all fix and are provided with stereoplasm rubber connecting pipe 22, stereoplasm rubber connecting pipe 22 can produce certain deformation when the atress effect, can offset the vibrations that buffer produced well in operation, the vibrations that make waste gas pipe 2 and gas pipe 3 produce reduce, outer casing 1 is inside to be close to natural gas power generation machine 23 rigidity and is provided with a plurality of heat exchanger 8, a plurality of heat exchanger 8 are used for carrying out the heat exchange with the air of outer casing 1 inside, and then satisfy the inside heat dissipation demand of outer casing 1, outer casing 1 front end face is provided with case protecgulum 5 through the bolt fastening, case protecgulum 5 center department position runs through the embedding and is provided with cavity glass observation window 4, case protecgulum 5 and cavity glass observation window 4 border position all are equipped with syllable-dividing seal ring, prevent that the inside sound wave of outer casing 1 from spilling from the joint gap, the case protecgulum 5 that sets up is fixed through a plurality of bolts, it overhauls to be convenient for getting into the casing 1 inside through dismantling, the glass observation window condition of outer casing 4 directly perceived.

The working principle is as follows: when the silencer is in operation, airflow is silenced in the silencing cavity 19, the plurality of central partition plates 21 and the plurality of auxiliary partition plates 15 divide the interior of the silencing cavity 19 into a plurality of independent spaces, discharged waste gas sequentially passes through the plurality of independent spaces generated by division, the residence time of the waste gas in the silencing cavity 19 is prolonged, the airflow speed is reduced, the vibration generated by the influence of the airflow on a pipeline is reduced, noise is reduced, sound waves generated by gas flow are reflected for multiple times between the plurality of central partition plates 21 and the plurality of auxiliary partition plates 15 through the plurality of central partition plates 21 and the plurality of auxiliary partition plates 15, the reflected sound waves collide with the sound waves in the original direction to counteract the energy of one wave component of the sound waves, and meanwhile, in the process of multiple reflection of the sound waves, the silencing cones 14 made of the plurality of porous silencing cotton materials and fixedly arranged on the front and rear end surfaces of the central partition plates 21 and the plurality of auxiliary partition plates 15 on the inner wall of the silencing cavity 19 can absorb the sound waves for multiple times;

mechanical noise generated by mechanical operation of the natural gas generator 23 is reduced and eliminated by the mechanical noise silencing layer 6 which is covered outside and jointly consists of the heat-resistant sound-absorbing cotton 10, the inner-layer sound-insulating plate 7 and the outer-layer sound-insulating plate 9, the heat-resistant sound-absorbing cotton 10, the inner-layer sound-insulating plate 7 and the outer-layer sound-insulating plate 9 have good absorption effect on sound waves due to self porous structures, the surface area of the heat-resistant sound-absorbing cotton 10 contacting with air can be effectively increased by the plurality of conical grooves 11 arranged on the surface of the heat-resistant sound-absorbing cotton 10, and the sound wave absorption efficiency is increased.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (8)

1. The utility model provides a natural gas power generation facility with amortization structure, includes outer casing (1) and natural gas generator (23), its characterized in that: the outer shell (1) inner wall is fixed and is provided with mechanical noise amortization layer (6), natural gas generator (23) set up inside outer shell (1), the fixed exhaust noise amortization mechanism (12) that is provided with of natural gas generator (23) up end, natural gas generator (23) lower extreme rigidity is provided with unable adjustment base (25), natural gas generator (23) and unable adjustment base (25) fixed connection are provided with a plurality of spring shock absorbers (24).

2. A natural gas power plant with a sound deadening structure according to claim 1, wherein: mechanical noise amortization layer (6) include that inlayer acoustic celotex board (7) and heat-resisting inhale sound cotton (10), fixed being provided with outer acoustic celotex board (9) between inlayer acoustic celotex board (7) and heat-resisting sound cotton (10), inlayer acoustic celotex board (7) and outer acoustic celotex board (9) use the material to be polyester fiber abatvoix, heat-resisting sound cotton (10) of inhaling is close to natural gas generator (23) a side end face equidistant tapered groove (11) of having seted up.

3. The natural gas power plant with noise reduction structure according to claim 1, characterized in that: the natural gas generator (23) is fixedly connected with an exhaust gas pipe (2) and a gas pipe (3), and the middle part of the exhaust gas pipe (2) is connected with the exhaust noise silencing mechanism (12).

4. A natural gas power plant with a sound deadening structure according to claim 1, wherein: exhaust noise amortization mechanism (12) are including amortization passageway (13), amortization passageway (13) are inside to be provided with anterior rectification chamber (18) by the front position, amortization passageway (13) are inside to be provided with amortization chamber (19) by the fixed amortization chamber (19) of intermediate position, it is fixed between amortization chamber (19) and anterior rectification chamber (18) to be provided with anterior cowling panel (16), amortization chamber (19) are by the fixed rear portion cowling panel (20) that is provided with of rear end position, amortization chamber (19) and anterior rectification chamber (18) internal fixation are provided with a plurality of heating wires (17).

5. The natural gas power plant with a sound deadening structure according to claim 4, characterized in that: the utility model discloses a silencer, including silencing chamber (19), silencing chamber (19) inside fixed a plurality of central baffles (21) and a plurality of auxiliary baffle (15) that are provided with, silencing chamber (19) inner wall and a plurality of central baffles (21) and a plurality of auxiliary baffle (15) front and back terminal surface all fixed a plurality of amortization awl (14) that are provided with, a plurality of silencing awl (14) use the material to be porous amortization cotton.

6. A natural gas power plant with a sound deadening structure according to claim 3, wherein: the one end that natural gas generator (23) were kept away from in exhaust gas pipe (2) and gas pipe (3) runs through outer shell (1) lateral wall respectively and leads to outer shell (1) outside, exhaust gas pipe (2) and gas pipe (3) middle part all are fixed and are provided with stereoplasm rubber connecting pipe (22).

7. The natural gas power plant with noise reduction structure according to claim 1, characterized in that: a plurality of heat exchangers (8) are fixedly arranged in the outer case (1) close to the natural gas generator (23).

8. The natural gas power plant with noise reduction structure according to claim 1, characterized in that: the box shell is characterized in that a box shell front cover (5) is fixedly arranged on the front end face of the outer box shell (1) through bolts, and a hollow glass observation window (4) penetrates through and is embedded into the center of the box shell front cover (5).

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