CN110671571A - Boiler drum sound-absorbing structure and exhaust-heat boiler - Google Patents
Boiler drum sound-absorbing structure and exhaust-heat boiler Download PDFInfo
- Publication number
- CN110671571A CN110671571A CN201910861583.XA CN201910861583A CN110671571A CN 110671571 A CN110671571 A CN 110671571A CN 201910861583 A CN201910861583 A CN 201910861583A CN 110671571 A CN110671571 A CN 110671571A
- Authority
- CN
- China
- Prior art keywords
- boiler
- drum
- noise
- gas
- heat boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The invention relates to the technical field of noise reduction devices, in particular to a boiler drum noise elimination structure and a waste 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 gas pipe 2 serving as a gas inlet or a gas outlet on the steam pocket of the superheater 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 reducing the noise 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 invention relates to the technical field of noise reduction devices, in particular to a boiler drum noise elimination structure and a waste 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.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex noise reduction structure, high cost and inconvenient maintenance of the waste heat boiler in the prior art, thereby providing the boiler steam drum noise elimination structure and the waste heat boiler, which have the advantages of simple structure, low cost and convenient maintenance and do not influence the overall performance of the waste heat boiler.
In order to solve the problems, the boiler drum silencing structure is arranged on a superheater of a waste heat boiler and comprises a noise reduction piece arranged on a drum air inlet and/or an air outlet of the superheater.
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 waste heat boiler comprises a superheater, wherein the superheater comprises steam drums positioned on two sides and a fin tube arranged between the two steam drums, an air tube serving as an air inlet or an air outlet is arranged on each steam drum, and the boiler steam drum noise elimination structure is arranged in the air tube.
The technical scheme of the invention has the following advantages:
1. the boiler drum silencing structure is arranged on a superheater of a waste heat boiler and comprises a denoising piece arranged on a drum air inlet and/or an air outlet of the superheater. 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. According to the boiler drum noise elimination structure, the noise reduction piece is arranged on 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 boiler steam drum silencing structure is relatively stable in honeycomb-coal-shaped silencing channels and matched with the structure of the air pipe.
4. According to the boiler steam drum noise elimination structure, the diameter of the noise elimination channel is 0.2-0.3 of the inner diameter of the air pipe, and the volume occupied by the noise elimination channel on the noise reduction piece with unit volume is 45% -85%, so that the noise reduction effect of the noise elimination structure is better.
5. According to the boiler steam drum noise elimination structure, noise can be generated when gas collides with a pipeline, the noise elimination channels are densely distributed in the middle of the noise reduction piece and outside the noise reduction piece, the gas can be dispersed, the noise generated by collision of the gas and the pipeline is reduced, and the noise elimination effect of the noise elimination structure 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 description of the embodiments or 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 other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a boiler drum muffler structure of the present invention;
FIG. 2 is a test chart of the boiler drum noise elimination structure of the present invention tested by analog simulation software;
FIG. 3 is a schematic of the superheater of 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 solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may 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. 3, 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 present embodiment has a noise distribution diagram tested by analog simulation software as shown in fig. 2, and the noise reduction amount in the steam drum is greater than 20 db.
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 therefrom are within 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 2 or 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 any one of claims 1 to 4, 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 any one of claims 1-5, wherein said silencing passages (4) are distributed more densely in the middle of said noise reducing member (5) than outside said noise reducing member (5).
7. A boiler drum silencing structure according to any of the claims 2-4, characterized in that said noise reducing member (5) is welded into said 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 |
|---|---|---|---|
| CN201910861583.XA CN110671571A (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 |
|---|---|---|---|
| CN201910861583.XA CN110671571A (en) | 2019-09-11 | 2019-09-11 | Boiler drum sound-absorbing structure and exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671571A true CN110671571A (en) | 2020-01-10 |
Family
ID=69077775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910861583.XA Pending CN110671571A (en) | 2019-09-11 | 2019-09-11 | Boiler drum sound-absorbing structure and exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671571A (en) |
-
2019
- 2019-09-11 CN CN201910861583.XA patent/CN110671571A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210890575U (en) | Boiler drum sound-absorbing structure and exhaust-heat boiler | |
| CN206770862U (en) | A kind of flue gas is received can muffler | |
| CN110630362A (en) | Automobile exhaust purification catalyst | |
| CN110671571A (en) | Boiler drum sound-absorbing structure and exhaust-heat boiler | |
| CN205370686U (en) | Water -cooled noise eliminator | |
| CN106014546A (en) | Gas-exhausting silencer of internal combustion engine | |
| CN210739700U (en) | Noise reduction structure and waste heat boiler | |
| CN107035463B (en) | Vehicle silencer capable of utilizing waste heat to perform catalytic reaction | |
| CN212508702U (en) | High-temperature-resistant silencer | |
| CN110671572A (en) | Noise reduction structure and waste heat boiler | |
| CN109899131B (en) | High-reliability plate-type muffler | |
| CN109945156B (en) | Supercritical CO for reducing working medium flow resistance through working medium bypass 2 Boiler system and method | |
| CN205260096U (en) | Compound noise elimination type afterheat recycling device of impedance | |
| RU2735048C1 (en) | Device for recuperating heat of waste gas | |
| CN209763024U (en) | supercritical CO2 boiler system for reducing flow resistance of working medium through working medium bypass | |
| CN202065037U (en) | Energy-saving and environment-friendly silencer of engine | |
| CN208642325U (en) | A kind of gas internal-combustion engine smoke evacuation denitration sound-attenuating system | |
| CN206300218U (en) | A kind of silencing means of boiler combustion head | |
| CN202885261U (en) | Smoke tube for gas water heater | |
| CN216715573U (en) | Resistive exhaust silencer of thermal power plant | |
| CN210289876U (en) | Exhaust inner tube convenient to amortization and heat dissipation | |
| CN207715213U (en) | A kind of engine exhaust muffler | |
| CN210069236U (en) | Pipeline silencer | |
| CN220750865U (en) | Cooling water tower muffler device | |
| CN216665757U (en) | High temperature resistant muffler for diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |