CN210890575U - Boiler drum sound-absorbing structure and exhaust-heat boiler - Google Patents
Boiler drum sound-absorbing structure and exhaust-heat boiler Download PDFInfo
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- CN210890575U CN210890575U CN201921515078.1U CN201921515078U CN210890575U CN 210890575 U CN210890575 U CN 210890575U CN 201921515078 U CN201921515078 U CN 201921515078U CN 210890575 U CN210890575 U CN 210890575U
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Abstract
The utility model relates to a technical field of making an uproar falls, concretely relates to boiler drum noise eliminator and exhaust-heat boiler. The boiler drum silencing structure is arranged on a superheater of the waste heat boiler and comprises a noise reduction piece arranged on a drum air inlet and/or an air outlet of the superheater. The air pipe on the steam pocket of the superheater as an air inlet or an air outlet is provided with a silencing structure, so that the overall noise condition of the waste heat boiler can be effectively reduced, and the purpose of noise reduction of the waste heat boiler is achieved. Moreover, the noise reduction part is arranged on the air inlet and/or the air outlet of the steam drum, so that the installation and the maintenance are more convenient, the material is saved, the cost is relatively low and the overall performance of the waste heat boiler is not influenced compared with the installation and the maintenance of the outer side of the boiler body, the inner side of the boiler body or the outer part of a chimney.
Description
Technical Field
The utility model relates to a technical field of making an uproar falls, concretely relates to boiler drum noise eliminator and exhaust-heat boiler.
Background
The waste heat boiler is a boiler which heats water to a certain temperature by using waste heat in waste gas, waste material or waste liquid in various industrial processes and heat generated after combustible substances are combusted, and can produce hot water or steam for other sections to use through waste heat recovery. For example, the exhaust-heat boiler secondarily utilizes the exhaust heat generated after the gas power generation, thereby improving the power generation efficiency, and therefore, the exhaust-heat boiler is more and more widely applied to the power generation field. However, the exhaust-heat boiler generates a large amount of noise in the using process, and the work and life of surrounding residents are seriously affected, so that the noise reduction treatment is required to be carried out on the exhaust-heat boiler in order to utilize the exhaust-heat boiler for long time to regenerate power.
At present, for the noise reduction treatment of the waste heat boiler, a boiler tight enclosure is adopted for some times, namely a boiler body is wrapped to block the transmission of noise, but the purpose of effective noise reduction cannot be achieved by adopting the mode, and meanwhile, the boiler tight enclosure is high in cost and not beneficial to the heat dissipation of a boiler body, so that the performance of the boiler is greatly influenced; the daily maintenance and repair of the boiler also brings about much inconvenience. Still install the noise reduction device in the outside of chimney, this can make the great and serious influence emission performance of chimney of bearing capacity of chimney, and holistic noise reduction effect is general, and the structure is fixed, and the suitability is poor, and the range of application is limited. Still be in exhaust-heat boiler's inside setting up sound absorbing device, this kind of mode has with high costs equally, is unfavorable for the heat dissipation of boiler furnace body, inconvenient daily maintenance and maintenance.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the waste heat boiler among the prior art and falling the defect that the structure is complicated, with high costs, inconvenient maintenance to a boiler drum noise-abatement structure and waste heat boiler of simple structure, with low costs, convenient maintenance and do not influence waste heat boiler overall performance is provided.
In order to solve the problem, the utility model discloses a boiler drum noise-abatement structure locates on exhaust-heat boiler's the over heater, including locating the piece of making an uproar falls in the drum air inlet of over heater and/or the gas outlet.
The steam pocket comprises an air pipe serving as the air inlet or the air outlet, and the noise reduction piece is arranged on the inner side of the air pipe 2.
The noise reduction piece is provided with a noise elimination channel distributed in a honeycomb briquette shape.
The diameter of the silencing channel is 0.2-0.3 of the inner diameter of the air pipe.
The volume occupied by the silencing channel on the noise reduction piece with unit volume is 45% -85%.
The noise elimination channels are distributed densely at the middle part of the noise reduction piece and distributed densely at the outer part of the noise reduction piece.
The noise reduction piece is welded in the air pipe.
The noise reduction piece is made of steel.
The utility model discloses a waste heat boiler, including the over heater, the over heater is including being located the steam pocket of both sides, and locate two fin pipe between the steam pocket, the trachea as air inlet or gas outlet has on the steam pocket, be equipped with foretell boiler steam pocket noise-abatement structure in the trachea.
The utility model discloses technical scheme has following advantage:
1. the utility model discloses a boiler drum sound-absorbing structure locates on exhaust-heat boiler's the over heater, including locating the piece of making an uproar falls on over heater's drum air inlet and/or the gas outlet. The gas entering the steam drum has noise; the gas can generate noise when colliding with the steam pocket; when the gas enters the steam pocket through the gas inlet, noise can be generated due to turbulence generated at the steam pocket; when the gas with noise flows out of the gas outlet of the steam drum to the gas pipe connected with the gas outlet, the noise is also generated due to the collision of the gas and the gas pipe; the noise in the superheater is large, the steam drum of the superheater is provided with a silencing structure as a gas inlet or a gas outlet, the overall noise condition of the waste heat boiler can be effectively reduced, and the purpose of noise reduction of the waste heat boiler is achieved. Moreover, the noise reduction part is arranged on the air inlet and/or the air outlet of the steam drum, so that the installation and the maintenance are more convenient, the material is saved, the cost is relatively low and the overall performance of the waste heat boiler is not influenced compared with the installation and the maintenance of the outer side of the boiler body, the inner side of the boiler body or the outer part of a chimney.
2. In the boiler drum silencing structure of the utility model, the noise reduction piece is arranged at the inner side of the air pipe, so that the installation is convenient; and secondly, the structure of the air pipe and the connection relation between the air pipe and the communicated connecting pipe are not influenced, and the structure of the superheater is not required to be changed, so that the superheater is suitable for installation of the existing waste heat boiler and is more widely applicable.
3. The utility model discloses a boiler drum noise elimination structure, the structure that is the noise elimination passageway of honeycomb briquette form distribution is relatively stable, and with tracheal structure looks adaptation.
4. The utility model discloses a boiler drum noise-abatement structure, the diameter of noise elimination passageway does 0.2-0.3 of trachea internal diameter, on the piece of making an uproar falls in unit volume the volume that the noise elimination passageway occupy is 45% -85%, all can make noise-abatement structure's noise reduction better.
5. The utility model discloses a boiler drum noise-abatement structure because also can produce the noise when gaseous and pipeline collide, the noise elimination passageway is in the middle part of making an uproar piece distributes intensively in the outside of making an uproar piece distributes, can disperse gas, reduces the noise that gaseous and pipeline collision produced for noise-abatement structure's noise cancelling effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the boiler drum noise elimination structure of the present invention;
FIG. 2 is a schematic structural view of a superheater according to the present invention;
description of reference numerals:
1-steam drum; 2-the trachea; 3-an air inlet; 4-a silencing channel; 5-a noise reducing piece; 6-finned tube.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The first embodiment is as follows:
the boiler drum silencing structure of the present embodiment is, as shown in fig. 1 and fig. 2, provided on a superheater of a waste heat boiler, the superheater includes drums located at both sides, one of the drums has an air inlet 3, the other drum has an air outlet, and the boiler drum silencing structure includes a noise reduction member 5 provided on the air inlet 3 and the air outlet.
The steam pocket includes as the air pipe 2 of air inlet 3 or the gas outlet, for the convenience to fall the installation of making an uproar 5, and do not influence exhaust-heat boiler current structure, will fall the noise piece 5 and locate the inboard of air pipe 2.
The noise reduction piece 5 is internally provided with noise elimination channels 4 distributed in a honeycomb briquette shape, the diameter of each noise elimination channel 4 is 0.2-0.3 of the inner diameter of the gas pipe 2, and the volume occupied by the noise elimination channels 4 on the noise reduction piece 5 in unit volume is 45-85%. In this embodiment, the sound-deadening channels 4 are distributed more densely in the middle of the noise reducing member 5 than in the outer portion of the noise reducing member 5.
The noise reduction piece 5 is welded in the air pipe 2, the connection reliability of the noise reduction piece 5 and the air pipe 2 can be guaranteed through a welded connection mode, and friction between the noise reduction piece 5 and the air pipe 2 caused by vibration can be reduced.
In this embodiment, the noise reduction member 5 is made of a steel plate. Of course, other hard sound absorbing materials are possible, and although sound absorbing materials have a better noise reduction effect, the cost is increased accordingly. As an alternative embodiment, the noise reduction element 5 can also be provided separately on the inlet opening or separately on the outlet opening.
The noise reduction structure of the embodiment has the noise distribution tested by analog simulation software, and the noise reduction in the steam pocket is more than 20 decibels.
Example two:
the waste heat boiler of this embodiment, including the over heater, the over heater is including being located the steam pocket of both sides, and locate two fin pipe 6 between the steam pocket, have trachea 2 as air inlet 3 or gas outlet on the steam pocket, be equipped with the boiler steam pocket noise cancelling structure among the embodiment one in the trachea 2.
When the waste heat boiler is used, high-temperature gas with heat flows through the superheater, the heat in the high-temperature gas is exchanged with the heat in the low-temperature gas in the finned tube 6, and the heat in the low-temperature gas in the finned tube 6 is increased and then is supplied to other sections for use. Because, the gas entering the steam pocket has noise; the gas can generate noise when colliding with the steam pocket; when the gas enters the steam pocket through the gas inlet 3, noise is generated due to turbulence generated at the steam pocket; when the gas with noise flows out of the gas outlet of the steam drum to the gas pipe 2 connected with the gas outlet, the noise is also generated due to the collision of the gas and the gas pipe 2; these can all make the noise in the over heater great, set up sound-attenuating structure on the steam pocket of over heater as air inlet 3 or trachea 2 of gas outlet, can the holistic noise condition of exhaust-heat boiler of effectual reduction, reach the purpose that exhaust-heat boiler made an uproar. Moreover, the noise reduction piece 5 is arranged on the steam drum air inlet 3 and/or the air outlet, so that the installation and the maintenance are more convenient, the material is saved, the cost is relatively low and the overall performance of the waste heat boiler is not influenced compared with the arrangement on the outer side of the boiler body, the inner side of the boiler body or the outer part of a chimney.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. The utility model provides a boiler drum sound-absorbing structure, locates on exhaust-heat boiler's the over heater, its characterized in that is including locating the piece (5) of making an uproar falls on drum air inlet (3) and/or the gas outlet of over heater.
2. A boiler drum muffling structure according to claim 1, wherein the drum comprises a gas pipe (2) as the gas inlet (3) or the gas outlet, and wherein the noise reducing member (5) is provided inside the gas pipe (2).
3. A boiler drum muffling structure according to claim 2, wherein the noise reducing member (5) has muffling channels (4) therein in a honeycomb-like distribution.
4. A boiler drum muffling structure according to claim 3, wherein the diameter of the muffling channel (4) is 0.2-0.3 of the inner diameter of the gas pipe (2).
5. A boiler drum muffling structure according to claim 3, wherein the volume occupied by the muffling channel (4) per unit volume of the noise reducing member (5) is 45 to 85%.
6. A boiler drum silencing structure according to claim 5, wherein said silencing passages (4) are distributed more densely in the middle of said noise reducing member (5) than in the outer part of said noise reducing member (5).
7. A boiler drum muffling structure according to claim 2, wherein the noise reducing member (5) is welded inside the gas pipe (2).
8. A boiler drum silencing structure according to any of the claims 1-7, characterized in that the material of said noise reducing member (5) is steel.
9. A waste heat boiler, characterized by comprising a superheater, wherein the superheater comprises steam drums positioned at two sides and fin tubes (6) arranged between the two steam drums, a gas pipe (2) serving as a gas inlet (3) or a gas outlet is arranged on the steam drum, and the inside of the gas pipe (2) is provided with a boiler steam drum silencing structure according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515078.1U CN210890575U (en) | 2019-09-11 | 2019-09-11 | Boiler drum sound-absorbing structure and exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515078.1U CN210890575U (en) | 2019-09-11 | 2019-09-11 | Boiler drum sound-absorbing structure and exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890575U true CN210890575U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515078.1U Active CN210890575U (en) | 2019-09-11 | 2019-09-11 | Boiler drum sound-absorbing structure and exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890575U (en) |
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2019
- 2019-09-11 CN CN201921515078.1U patent/CN210890575U/en active Active
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