CN215633349U - Noise reduction system of internal combustion gas generator set - Google Patents
Noise reduction system of internal combustion gas generator set Download PDFInfo
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- CN215633349U CN215633349U CN202121590804.3U CN202121590804U CN215633349U CN 215633349 U CN215633349 U CN 215633349U CN 202121590804 U CN202121590804 U CN 202121590804U CN 215633349 U CN215633349 U CN 215633349U
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Abstract
The application discloses internal combustion gas generator unit noise reduction system includes: the gas generator set comprises a case, a gas generator set and a gas generator set, wherein a fireproof rock wool layer is arranged on the inner wall of the case; the air inlet pipeline is arranged at one end of the case and is communicated with the inside of the case; the first fan is connected with the inner wall of the air inlet pipeline and is positioned at one end, close to the case, of the air inlet pipeline; the exhaust pipeline is arranged at the other end of the case and is communicated with the inside of the case; and the second fan is connected with the inner wall of the exhaust pipeline and is positioned at one end of the exhaust pipeline close to the case. This application can effectively reduce the noise pollution that gas generating set operation caused.
Description
Technical Field
The application relates to the technical field of noise reduction of generator sets, in particular to a noise reduction system of an internal combustion gas generator set.
Background
The gas generating set is a novel generating set which utilizes natural gas or harmful gas as fuel, and has the advantages of environmental protection, high starting and running reliability, good generating quality and the like compared with the traditional diesel generating set.
In the operation process of the gas generator set, waste gas rushes out from the exhaust valve at a high speed and is exhausted into the atmosphere along the exhaust pipeline to generate a large amount of noise, the exhaust noise is a main noise source of the gas generator set, and if the exhaust noise is not processed, noise pollution is formed, and the harm is caused to the physical and mental health of people.
SUMMERY OF THE UTILITY MODEL
In order to reduce the noise pollution that gas generating set operation caused, this application provides an internal combustion gas generating set noise reduction system, adopts following technical scheme:
an internal combustion gas generator set noise reduction system comprising:
the gas generator set comprises a case, a gas generator set and a gas generator set, wherein a fireproof rock wool layer is arranged on the inner wall of the case;
the air inlet pipeline is arranged at one end of the case and is communicated with the inside of the case;
the first fan is connected with the inner wall of the air inlet pipeline and is positioned at one end, close to the case, of the air inlet pipeline;
the exhaust pipeline is arranged at the other end of the case and is communicated with the inside of the case; and
and the second fan is connected with the inner wall of the exhaust pipeline and is positioned at one end, close to the case, of the exhaust pipeline.
Optionally, the box wall of the chassis comprises an outer-layer steel plate, an inner-layer steel plate and a damping glue layer fixed between the outer-layer steel plate and the inner-layer steel plate;
the fireproof rock wool layer is fixedly arranged on the inner steel plate, and the thickness of the fireproof rock wool layer can be 30-120 mm.
Optionally, a zinc coating is arranged on the outer wall of the outer steel plate.
Optionally, a plurality of silencing cups are fixed on the inner wall of the exhaust duct, and are arranged at intervals along the axial direction of the exhaust duct;
the sectional area orientation of amortization cup deviates from one side of exhaust pipe air-out end and reduces gradually, just the amortization cup deviates from the one end of exhaust pipe air-out end and has seted up first through-hole.
Optionally, a cavity is arranged in the cup wall of the silencing cup, and sound-absorbing cotton is filled in the cavity;
and second through holes are uniformly distributed on the wall of the silencing cup and are communicated with the cavity.
Optionally, a ladder stand is arranged on the case.
Optionally, an illuminating lamp is arranged inside the case.
When the gas generating set operates, the first fan and the second fan are started. Because the gas generating set during operation, the chamber door of quick-witted case is in the closed condition, and first fan operation, outside cold air lasts and gets into quick-witted incasement, replaces the high-temperature gas that produces in the quick-witted case, avoids the interior high temperature of quick-witted case, and the operation of second fan accelerates the discharge of quick-witted incasement portion gas. In addition, the air pressure in the case can be maintained within a normal range through the matching of the first fan and the second fan.
Outside air enters the case through the air inlet pipeline, and the fireproof rock wool layer absorbs noise generated by airflow flowing and operation of the gas power generation set and is finally discharged through the air outlet pipeline. Through putting into the confined quick-witted incasement with gas generating set, first fan and second fan are responsible for maintaining the flow of air current and the stability of quick-witted incasement air pressure, and the absorption of noise is responsible for on the fire prevention rock wool layer, has effectively reduced the noise pollution that gas generating set caused.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
Fig. 1 is a schematic overall structure diagram according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a cabinet wall according to an embodiment of the present application.
Fig. 3 is a sectional view of the exhaust duct of fig. 1.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
In the figure, 1, a chassis; 11. a fireproof rock wool layer; 12. an outer steel plate; 13. an inner layer steel plate; 14. a damping glue layer; 21. an air inlet pipeline; 22. a first fan; 31. an exhaust duct; 32. a second fan; 33. a noise reduction cup; 34. a first through hole; 35. sound-absorbing cotton; 36. a second through hole; 4. the ladder is climbed.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the noise reduction system for an internal combustion gas turbine generator set provided in the embodiment of the present application includes a chassis 1, an air inlet duct 21, a first fan 22, an air outlet duct 31, and a second fan 32.
The whole case 1 is formed by welding a steel frame and a steel plate and is of a closed frame structure. The gas generating set is placed inside the case 1, a case door is arranged on the surface of one side of the case 1, and optionally the case door is a fireproof sound insulation door and has high temperature resistance and sound insulation functions. The length, width and height dimensions of the enclosure 1 may be, for example, 3-10m 2-6m 2-4 m.
Referring to fig. 2, the inner wall of the case 1 is further fixedly provided with a fireproof rock wool layer 11, and the thickness of the fireproof rock wool layer can be 30-120 mm. Can produce a large amount of heats in the gas generating set operation process, lead to quick-witted case 1's inside to be in the high temperature state, the setting on fire prevention rock wool layer 11 can play thermal-insulated effect, and above all, the porous structure of fire prevention rock wool layer 11 self can absorb the noise that gas generating set produced, plays the effect of making an uproar of falling.
When the gas turbine generator set is in operation, the first fan 22 and the second fan 32 are turned on. Because the gas generating set during operation, the chamber door of quick-witted case 1 is in the closed condition, and first fan 22 moves, and outside cold air lasts and gets into quick-witted case 1 in, replaces the high-temperature gas that produces in quick-witted case 1, avoids quick-witted incasement 1 high temperature, and second fan 32 moves, and the discharge of the inside gas of quick-witted case 1 accelerates. In addition, the first fan 22 and the second fan 32 are matched with each other, so that the air pressure in the cabinet 1 can be maintained within a normal range.
Outside air enters the case 1 through the air inlet pipe 21, and the fireproof rock wool layer 11 absorbs noise generated by airflow flowing and operation of the gas-fired power generation set and is finally exhausted through the exhaust pipe 31. By placing the gas generator set into the closed case 1, the first fan 22 and the second fan 32 are responsible for maintaining the flow of the air flow and the stability of the air pressure in the case 1, and the fireproof rock wool layer 11 is responsible for absorbing noise, thereby effectively reducing the noise pollution caused by the gas generator set.
Referring to fig. 2, according to an alternative technical solution of the embodiment of the present application, a box wall of the chassis 1 is a composite steel plate structure, which is divided into three layers, that is, an outer steel plate 12 (with a thickness of, for example, 1-5mm), a damping glue layer 14 (with a thickness of, for example, 10-40mm), and an inner steel plate 13 (with a thickness of, for example, 1-5mm) sequentially from outside to inside, and the three layers are fixedly connected to form an integral structure. The damping rubber layer 14 has good elastic performance and excellent bonding capability, and firmly bonds the outer steel plate 12 and the inner steel plate 13 together.
In addition, it should be understood that the fireproof rock wool layer 11 is fixedly arranged on the surface of the inner steel plate 13 facing away from the damping rubber layer 14.
In the operation process of the gas generator set, the set can cause vibration, and simultaneously, the air current is accompanied with the drunkenness, these all can cause energy impact to the wall of the machine case 1, when the wall of the machine case 1 receives strong forced vibration, the damping glue layer 14 can produce bending deformation vibration, can produce corresponding time difference between the outer steel plate 12 and the inner steel plate 13, namely the phase difference of popular saying, thereby the damping glue layer 14 can stress to produce shearing deformation, can effectively absorb a large amount of vibration energy, avoid the outer steel plate 12 and the inner steel plate 13 to resonate, in addition, the damping glue layer 14 can be fast recovered to the original state after being deformed, in the meantime, the vibration energy is effectively converted into the ability of other forms such as heat energy, thereby the purpose of reducing vibration and reducing noise is achieved.
Optionally, the outer wall of the outer steel plate 12 is further coated with a zinc coating, so that the corrosion resistance of the outer steel plate 12 can be effectively enhanced.
Referring to fig. 3, according to an alternative technical solution of the embodiment of the present application, a silencing cup 33 is fixed on an inner wall of the exhaust duct 31, so as to further enhance the noise reduction effect of the system. It should be noted that a plurality of sound attenuation cups 33 are arranged at intervals along the axial direction of the exhaust duct 31, and optionally, the distances between adjacent sound attenuation cups 33 are equal.
The sectional area of the silencing cup 33 is gradually reduced towards one side departing from the air outlet end of the exhaust duct 31, and a first through hole 34 is formed at the narrow opening end of the silencing cup 33 and used for allowing air flow to pass through. It should be noted that, in fig. 3, the longitudinal section of the silencing cup 33 may be an arc or a straight line. In the air flow moving direction, after the air flow passes through a certain first through hole 34, a part of the air flow moves forwards linearly and passes through the next first through hole 34, a part of the air flow diffuses towards two sides along the radial direction of the exhaust pipe 31, enters a cavity between the cup wall of the silencing cup 33 and the inner wall of the exhaust pipe 31, moves reversely after being blocked, forms convection with the rear air flow, and two air flows collide with each other, so that the air flow speed and pressure are reduced, the energy generated by collision is converted into energy in other forms such as heat energy and the like, and the noise reduction capability of the system is further enhanced.
In addition, in practical applications, sound deadening cup 33 may also be installed in intake duct 21 to reduce noise at the location of intake duct 21. However, it should be noted that wherever sound attenuating cup 33 is mounted, the direction of the narrow end of sound attenuating cup 33 should be opposite to the direction of the flow of the gas stream.
Referring to fig. 3 and 4, optionally, a cavity is formed in the wall of the silencing cup 33, and sound-absorbing cotton 35 is filled in the cavity; meanwhile, the wall of the silencing cup 33 is uniformly provided with second through holes 36, and the second through holes 36 are communicated with the cavity. Part of the air flow entering between the cup wall of the silencing cup 33 and the exhaust duct 31 can enter the cavity through the second through hole 36 and be exhausted, the energy of the part of the air flow is further weakened under the action of the sound absorption cotton 35, the noise is reduced, and meanwhile, the arrangement of the second through hole 36 also increases the exhaust path of the air flow.
Referring to fig. 1, according to an optional technical solution of the embodiment of the present application, a ladder 4 is further disposed on the chassis 1, one end of the ladder 4 abuts against the ground, and the other end of the ladder is fixedly connected to the upper portion of the side wall of the chassis 1. The climbing ladder 4 is convenient for workers to climb to the top of the case 1, and the air inlet pipeline 21 and the air outlet pipeline 31 are overhauled.
Optionally, an illuminating lamp is further arranged inside the case 1, so that the inside of the case 1 is illuminated.
The embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application. Therefore, the person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of protection of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (7)
1. A system for reducing noise in an internal combustion gas generator unit, comprising:
the gas generator set comprises a case (1) for accommodating a gas generator set, wherein a fireproof rock wool layer (11) is arranged on the inner wall of the case (1);
the air inlet pipeline (21) is arranged at one end of the case (1) and is communicated with the inside of the case (1);
the first fan (22) is connected with the inner wall of the air inlet pipeline (21) and is positioned at one end, close to the case (1), of the air inlet pipeline (21);
the air exhaust pipeline (31) is arranged at the other end of the case (1) and is communicated with the inside of the case (1); and
and the second fan (32) is connected with the inner wall of the exhaust pipeline (31) and is positioned at one end, close to the case (1), of the exhaust pipeline (31).
2. The internal combustion gas generator set noise reduction system of claim 1, wherein: the box wall of the case (1) comprises an outer layer steel plate (12), an inner layer steel plate (13) and a damping glue layer (14) fixed between the outer layer steel plate (12) and the inner layer steel plate (13);
the fireproof rock wool layer (11) is fixedly arranged on the inner steel plate (13).
3. The internal combustion gas generator set noise reduction system of claim 2, wherein: and a zinc coating is arranged on the outer wall of the outer steel plate (12).
4. The internal combustion gas generator set noise reduction system of claim 1, wherein: a plurality of silencing cups (33) are fixed on the inner wall of the exhaust pipeline (31), and the silencing cups (33) are arranged at intervals along the axial direction of the exhaust pipeline (31);
the sectional area of amortization cup (33) is towards deviating from one side of exhaust pipe (31) air-out end and is reduced gradually, just first through-hole (34) have been seted up to amortization cup (33) the one end that deviates from exhaust pipe (31) air-out end.
5. The internal combustion gas generator set noise reduction system of claim 4, wherein: a cavity is arranged in the cup wall of the silencing cup (33), and sound-absorbing cotton (35) is filled in the cavity;
second through holes (36) are uniformly distributed on the wall of the silencing cup (33), and the second through holes (36) are communicated with the cavity.
6. The internal combustion gas generator set noise reduction system of claim 1, wherein: a ladder stand (4) is arranged on the case (1).
7. The internal combustion gas generator set noise reduction system of claim 1, wherein: an illuminating lamp is arranged inside the case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590804.3U CN215633349U (en) | 2021-07-13 | 2021-07-13 | Noise reduction system of internal combustion gas generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590804.3U CN215633349U (en) | 2021-07-13 | 2021-07-13 | Noise reduction system of internal combustion gas generator set |
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| Publication Number | Publication Date |
|---|---|
| CN215633349U true CN215633349U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121590804.3U Active CN215633349U (en) | 2021-07-13 | 2021-07-13 | Noise reduction system of internal combustion gas generator set |
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2021
- 2021-07-13 CN CN202121590804.3U patent/CN215633349U/en active Active
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