CN104234803B - Rainproof structure used in silencer and silencer adopting structure - Google Patents
Rainproof structure used in silencer and silencer adopting structure Download PDFInfo
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- CN104234803B CN104234803B CN201410500149.6A CN201410500149A CN104234803B CN 104234803 B CN104234803 B CN 104234803B CN 201410500149 A CN201410500149 A CN 201410500149A CN 104234803 B CN104234803 B CN 104234803B
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Abstract
The invention relates to a rainproof structure capable of reducing the equipment manufacturing cost and saving the use space used in a silencer and an exhaust silencer adopting the structure. The rainproof structure is characterized in that a water discharge mechanism is arranged on the top inside a machine case of the silencer and consists of a hollow case, a rectifying net, a rain blocking plate and a water discharge pipe, wherein the water discharge pipe is used for guiding out accumulated water on the rain blocking plate, and the upper end of the rectifying net is also fixedly connected with a rain guide component. The rainproof and rain discharge structure is arranged inside the machine case of the silencer, the function of the silencer for reducing the noise is not influenced, the external use space is also saved, and in an integral aspect, the cost is not greatly increased under the condition of adding new functions, so the equipment manufacturing cost is effectively reduced. The rainproof structure and the silencer have the advantages that the structure is simple, the layout is reasonable, the installation is convenient, the multifunction of a diesel engine for a boat is realized, the boat manufacturing cost is also reduced, and the space utilization rate of boat equipment is also reduced.
Description
Technical field
The present invention relates to a kind of for the rain-proof structure in silencing apparatus, particularly a kind of for being arranged on the rain-proof structure of the exhaust silencer use on marine diesel engine and applying the silencing apparatus of this structure.
Background technique
At present, exhaust muffler for marine diesel engine common both at home and abroad only has the function of single reduction noise, a simple rainhat or elbow cover are installed in exhaust silencer outlet port by minority silencing apparatus producer, the inefficiency of this row's rainwater way, needs in diesel engine exhaust system, to install other again except rainwater equipment toward contact.Adopt this way, both increased shipbuilding cost, take again the space around exhaust silencer peculiar to vessel.So design Multifunction equipment is the development trend of current various ship equipment.Exhaust muffler for marine diesel engine is also in development upgrades, and except meeting the function of the reduction noise that exhaust silencer self has, also must have other function.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can reduce device fabrication cost can save again usage space for the rain-proof structure in silencing apparatus and the exhaust silencer applying this structure.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
Of the present invention for the rain-proof structure in silencing apparatus, top in the casing of this silencing apparatus is provided with drainage mechanism, the shell of this drainage mechanism by hollow and in the coaxial disjunctor shape of cylinder round platform, with shell coaxially and the bottom arranged in the inner is the screens of mesh, be arranged on this outer casing bottom to arrange and the weather shield of to be skewed central authorities be through hole and one end are connected to the other end on weather shield is arranged at the outer and waste pipe that is that derived by ponding on weather shield of casing and forms along this casing circumference, the top of the exhaust connection tube of this silencing apparatus is placed within screens through described through hole, described shell divides upper and lower, top is up-small and down-big frustoconic shape, the top on top is for entering Yu Kou, this periphery entering rain mouth is fixed on the flange of exhaust silencer gas outlet, be tightly connected therebetween, bottom is cylindrical, described weather shield is radially from inside to outside towards having a down dip, the outer end of weather shield is connected with the bottom end seal of outer casing underpart, described screens is two ends is uncovered hollow cylinders, the lower end of screens is fixed in bore periphery described on weather shield, inner edge and the described exhaust connection tube of described through hole are tightly connected, also be connected with in the upper end of screens there is cone point and with screens coaxial lead rain parts, at described outer casing underpart, a ponding shallow slot is formed between weather shield and described exhaust connection tube top.
Described shell shell wall divides the non-mesh wall of the mesh wall on top and bottom, and this mesh wall extends to the top of described ponding shallow slot by its top.
Described to lead rain parts be cross section is the hollow double cone body of rhombus, and be provided with semicircular gas flow guiding cover in its lower end, diameter larger portion position on the double cone body of leading rain parts, being evenly provided with four diameters along its circumferencial direction is the exhaust port of 4mm.
On screens mesh area most last layer mesh to described in lead rain parts radial distance should be greater than two times of the mesh aperture on screens.
The top of described exhaust connection tube is not less than 10mm to the upper distance limit of described ponding shallow slot.
The top of described exhaust connection tube to described screens bottom between distance be not less than 10mm.
Described screens top does not set the ratio of the height of mesh area and the height of mesh wall as 1:15.
The radius of described screens is greater than the radius of described exhaust connection tube, and its difference is not less than 10mm.
Rain-proof type exhaust silencer of the present invention, comprise the casing of silencing apparatus, the exhaust connection tube being installed on the sound-absorbing material in this casing and can being connected on marine diesel engine relief opening, top in this casing is provided with drainage mechanism, the shell of this drainage mechanism by hollow and in the coaxial disjunctor shape of cylinder round platform, with shell coaxially and the bottom arranged in the inner is the screens of mesh, be arranged on this outer casing bottom to arrange and the weather shield of to be skewed central authorities be through hole and one end are connected to the other end on weather shield is arranged at the outer and waste pipe that is that derived by ponding on weather shield of casing and forms along this casing circumference, the top of described exhaust connection tube is placed within screens through described through hole, described shell divides upper and lower, top is up-small and down-big frustoconic shape, the top on top is for entering Yu Kou, this periphery entering rain mouth is fixed on the flange of exhaust silencer gas outlet, be tightly connected therebetween, bottom is cylindrical, described weather shield is radially from inside to outside towards having a down dip, the outer end of weather shield is connected with the bottom end seal of outer casing underpart, described screens is two ends is uncovered hollow cylinders, the lower end sealing of screens is fixed in bore periphery described on weather shield, inner edge and the described exhaust connection tube of described through hole are tightly connected, also be connected with in the upper end of screens there is cone point and with screens coaxial lead rain parts, at described outer casing underpart, a ponding shallow slot is formed between weather shield and described exhaust connection tube top.
The top of described exhaust connection tube is not less than 10mm to the upper distance limit of described ponding shallow slot; The top of described exhaust connection tube to described screens bottom between distance be not less than 10mm.
Compared with prior art, the present invention is by rainwater-proof and arrange rainwater vibrational power flow in the inside of exhaust silencer casing, this structure neither affects the function that this silencing apparatus reduces noise, save again the structure that outside usage space eliminates rainhat of the prior art or elbow cover, and by wherein built-in for this rainwater-proof structure in exhaust silencer working process, comparatively speaking, it makes wants simple a lot, in terms of overall, it is when with the addition of New function, expense does not increase how many, and therefore, it effectively reduces device fabrication cost.Structure of the present invention is simple, rationally distributed, easy for installation.It had both achieved the multifunction of marine diesel engine, again reduced the manufacture cost of boats and ships, also saved the utilization ratio in ship equipment space.
Accompanying drawing explanation
Fig. 1 is the sectional view of silencing apparatus of the present invention.
Fig. 2 is the rain-proof structure enlarged view in Fig. 1.
Fig. 3 is the enlarged diagram of leading rain parts.
Reference character is as follows:
Rain-proof structure 1, shell 11, screens 12, weather shield 13, lead rain parts 14, air guide sleeve 15, ponding shallow slot 16, exhaust port 17, exhaust connection tube 2, waste pipe 3, casing 4, sound-absorbing material 5, enter rain mouth 6, flange 7.
Embodiment
Of the present invention for the rain-proof structure 1 in silencing apparatus and the silencing apparatus applying this structure, be mainly used on marine diesel engine venting gas appliance.It comprises the casing 4 of silencing apparatus, the sound-absorbing material 5 be placed in casing 4, the rain-proof structure 1 that is installed on the exhaust connection tube 2 on marine diesel engine relief opening and is arranged at casing 4 internal upper part.
Described rain-proof structure 1 by shell 11, weather shield 13, screens 12, lead rain parts 14, exhaust six parts such as connection tube 2 and waste pipe 3 road form.
Described shell 11 is made by 304 stainless steel materials, its point of upper and lower, upper and lower is connected as a single entity, shaped upper part is up-small and down-big frustoconic shape, the top on top is for entering rain mouth 6, this peripheral weld entering rain mouth 6 is connected on the flange 7 of exhaust silencer gas outlet, and this enters between the tube wall of rain mouth 6 and flange 7 to be tightly connected.The bottom of shell 11 is hollow cylindrical, in order to the noise produced by exhaust connection tube 2 flowing gas out effectively can be reduced, the shell wall of the top of shell 11 and most bottoms can be made into mesh (i.e. the sound-absorbing material 5 that the noise of flowing gas generation is located at outside shell 11 through mesh absorbs), region shared by this mesh extends to the upper limb of the ponding shallow slot 16 being located at shell 11 bottom from top to bottom.Outer casing underpart do not set the ratio of the height of mesh area and the height of mesh wall as 1:2.
Described weather shield 13 is made by 304 stainless steel materials, its shape is the both ends of the surface up and down of cutting away cone angle is uncovered taper cone barrel, this taper cone barrel up-small and down-big, upper-end surface is manhole, the bottom of this taper cone barrel is welded with the bottom end seal of described shell 11 bottom, the through hole inner edge of this taper cone barrel upper-end surface and the tube wall seal welding of the described exhaust connection tube 2 through this through hole.
Described ponding shallow slot 16 be by shell 11 bottom shell wall (non-mesh wall), weather shield 13 and described through hole on exhaust connection tube 2 tube wall between the space that formed form.Rain time, by the air outlet at this silencing apparatus top float into rainwater can lodge in this.
Near weather shield 13 peripheral position on weather shield 13, along the circumferential direction evenly (it is deep mixed that the water that can prevent from accumulating in ponding shallow slot 16 is evenly set) and be provided with several weep holes, the present invention is preferably four, accumulates in rainwater in described ponding shallow slot 16 by these weep holes with to be tightly connected with this weep hole and the waste pipe 3 be arranged on below weather shield 13 is discharged into outside this silencing apparatus casing 4.
Described screens 12 is made by 304 stainless steel materials, its for two ends are uncovered hollow cylinders, the internal diameter of screens 12 is greater than the external diameter of described exhaust connection tube 2, namely extending upward through described through hole exhaust connection tube 2 part come is be placed in screens 12, and the rainwater entered in shell 11 can be avoided like this to enter in exhaust connection tube 2.The top part of screens 12 is solid wall (namely not establishing mesh area), and its underpart is the mesh wall that the flowing gas in exhaust connection tube 2 can be made to discharge.The height of the solid wall part on the preferred screens 12 of the present invention is not less than 20mm, and the present invention preferably this solid wall is 1:15 with the ratio of the height of mesh wall.
The lower end of screens 12 is welded on weather shield 13 in the mode arranged with described through hole same axis.
Also be connected with in the upper end of screens 12 one by 304 stainless steel materials made lead rain parts 14, its for cross section be the hollow double cone body of rhombus, this double cone body is coaxial setting with screens 12, leads mode that rain parts 14 connect with screens 12 upper end-hole with maximum radial part on it and this screens 12 welds together.The Main Function of leading rain parts 14 be guide float in shell 11 and the rainwater beaten thereon flow downward along screens 12 wall, do not enter and be vented in connection tube 2.
For reducing by the resistance of the flowing gas flowed out in exhaust connection tube 2, semicircular gas flow guiding cover 15 is provided with in described lower end of leading rain parts 14, diameter larger portion position on the double cone body of leading rain parts 14, the exhaust port 17 (as shown in Figure 3) that four diameters are 4mm is evenly provided with along its circumferencial direction, its effect prevents from being injected into by the gas flow of the higher temperature of ejection in exhaust connection tube 2 this air guide sleeve 15 making again inside be that the rain parts 14 of leading of cavity heat up suddenly, causes the gas in rain parts 14 to cause cracking or blast because of rapid expanding.
Described exhaust connection tube 2 can be the exhaust supervisor of silencing apparatus, also can be the reducer pipe be connected with the exhaust main tube transitions of this silencing apparatus, use the connecting tube of which kind of structure can the exhaust supervisor used according to different silencing apparatuss and the present invention's rectifier lamp used, weather shield 13 concrete structure and determine.
In order to prevent the raindrop that flow downward along screens 12 from entering in exhaust connection tube 2 by the mesh wall the superiors mesh on it, further improvement of the present invention be by the upper edge in the mesh wall region of screens 12 to described in lead rain parts 14 radial beeline be set to two times of the mesh aperture that should be greater than on screens 12.
Its reason is as follows: do not produce turbulent flow to prevent exhaust connection tube 2 when being vented, require that the section area of exhaust connection tube 2 is constant as far as possible or slowly change, the cone angle of therefore leading the lower cone of rain parts 14 can not be too large, and cone angle of leading rain parts 14 lower cone of the present invention is preferably 40 degree.The upper limb of leading the lower cone of rain parts 14 is like this just very little to the horizontal equivalent of the most last layer mesh of mesh wall of screens 12, if the diameter that this horizontal equivalent is less than mesh is even less, the raindrop be so trapped on the most last layer mesh of mesh wall of screens 12 may be led away by the lower cone of leading rain parts 14 because of suction-operated, then flow in exhaust connection tube 2.
Further, in order to avoid the water in ponding shallow slot 16 diffuses in exhaust connection tube 2 when more, top to the distance of ponding shallow slot 16 upper limit of exhaust connection tube 2 can be set as being not less than the 10mm upper limit of non-mesh wall (namely on described shell 11).
Further, the radius of screens 12 should be greater than the radius of exhaust connection tube 2, and its difference is not less than 10mm.Its effect is: usually, the water droplet flowed downward by screens 12, when falling its bottom, water droplet can produce a small amount of splashing because clashing into weather shield 13, when above-mentioned difference is too little, the water droplet of splashing will fall in exhaust connection tube 2, therefore, in order to prevent the water droplet of this splashing from entering exhaust connection tube 2, should large by the radial design of screens 12, the radial design of the exhaust connection tube 2 coaxial with it less.
Further, in order to avoid being entered in exhaust connection tube 2 along the catadromous rainwater of screens 12 net wall by its bottom, the bottom of screens 12 can be set to lower than the top of exhaust connection tube 2, distance difference is therebetween not less than 10mm.
Unobstructed in order to ensure by the flowing gas that flows out of exhaust connection tube 2, can be designed to the whole circulation area of the mesh wall being greater than screens 12 by the cross sectional area between shell 11 inwall to screens 12 outer wall; The whole circulation area of the mesh wall of screens 12 is greater than the cross sectional area of exhaust connection tube 2.
Rainproof process of the present invention is as follows:
When rainwater is floated into described shell 11 by the gas outlet of exhaust silencer, raindrop drop on leads on the cone position of rain parts 14, then along leading the downward landing in inclined-plane of rain parts 14 cone to screens 12, then go downstream in ponding shallow slot 16, outside the casing 4 finally being flowed out this silencing apparatus by described waste pipe 3.
Claims (10)
1. one kind for the rain-proof structure in silencing apparatus, it is characterized in that: the top in the casing (4) of this silencing apparatus is provided with drainage mechanism, the shell (11) of this drainage mechanism by hollow and in the coaxial disjunctor shape of cylinder round platform, with the screens (12) that the coaxial and bottom arranged in the inner of shell (11) is mesh, be arranged on this shell (11) bottom to arrange and the weather shield (13) of be skewed central authorities be through hole and one end are connected to the upper the other end of weather shield (13) is arranged at casing (4) outward and by waste pipe (3) formation of the upper ponding derivation of weather shield (13) along this shell (11) circumference, the top of the exhaust connection tube (2) of this silencing apparatus is placed within screens (12) through described through hole, described shell (11) point upper and lower, top is up-small and down-big frustoconic shape, the top on top is for entering Yu Kou (6), this periphery entering Yu Kou (6) is fixed on the flange (7) of exhaust silencer gas outlet, be tightly connected therebetween, bottom is cylindrical, described weather shield (13) is radially from inside to outside towards having a down dip, the outer end of weather shield (13) is connected with the bottom end seal of shell (11) bottom, described screens (12) for two ends are uncovered hollow cylinders, the lower end of screens (12) is fixed in the upper described bore periphery of weather shield (13), inner edge and the described exhaust connection tube (2) of described through hole are tightly connected, also be connected with in the upper end of screens (12) there is cone point and with screens (12) coaxial lead rain parts (14), in described shell (11) bottom, a ponding shallow slot (16) is formed between weather shield (13) and described exhaust connection tube (2) top.
2. according to claim 1 for the rain-proof structure in silencing apparatus, it is characterized in that: the mesh wall on described shell (11) shell wall point top and the non-mesh wall of bottom, this mesh wall extends to the top of described ponding shallow slot (16) by its top.
3. according to claim 2 for the rain-proof structure in silencing apparatus, it is characterized in that: described in lead rain parts (14) for cross section be the hollow double cone body of rhombus, semicircular gas flow guiding cover (15) is provided with in its lower end, diameter larger portion position on the double cone body of leading rain parts (14), is evenly provided with along its circumferencial direction the exhaust port (17) that four diameters are 4mm.
4. according to claim 2 for the rain-proof structure in silencing apparatus, it is characterized in that: the most last layer mesh of the upper mesh area of screens (12) to described in lead rain parts (14) radial distance should be greater than two times of the mesh aperture on screens (12).
5. according to any one of claim 1-4 for the rain-proof structure in silencing apparatus, it is characterized in that: the top of described exhaust connection tube (2) is not less than 10mm to the upper distance limit of described ponding shallow slot (16).
6. according to claim 5 for the rain-proof structure in silencing apparatus, it is characterized in that: the top of described exhaust connection tube (2) to described screens (12) bottom between distance be not less than 10mm.
7. according to claim 6 for the rain-proof structure in silencing apparatus, it is characterized in that: described screens (12) top does not set the ratio of the height of mesh area and the height of mesh wall as 1:15.
8. according to claim 7 for the rain-proof structure in silencing apparatus, it is characterized in that: the radius of described screens (12) is greater than the radius of described exhaust connection tube (2), and its difference is not less than 10mm.
9. a rain-proof type exhaust silencer, comprise the casing (4) of silencing apparatus, the exhaust connection tube (2) being installed on the sound-absorbing material (5) in this casing (4) and can being connected on marine diesel engine relief opening, it is characterized in that: the top in this casing (4) is provided with drainage mechanism, the shell (11) of this drainage mechanism by hollow and in the coaxial disjunctor shape of cylinder round platform, with the screens (12) that the coaxial and bottom arranged in the inner of shell (11) is mesh, be arranged on this shell (11) bottom to arrange and the weather shield (13) of be skewed central authorities be through hole and one end are connected to the upper the other end of weather shield (13) is arranged at casing (4) outward and by waste pipe (3) formation of the upper ponding derivation of weather shield (13) along this shell (11) circumference, the top of described exhaust connection tube (2) is placed within screens (12) through described through hole, described shell (11) point upper and lower, top is up-small and down-big frustoconic shape, the top on top is for entering Yu Kou (6), this periphery entering Yu Kou (6) is fixed on the flange (7) of exhaust silencer gas outlet, be tightly connected therebetween, bottom is cylindrical, described weather shield (13) is radially from inside to outside towards having a down dip, the outer end of weather shield (13) is connected with the bottom end seal of shell (11) bottom, described screens (12) for two ends are uncovered hollow cylinders, the lower end sealing of screens (12) is fixed in the upper described bore periphery of weather shield (13), inner edge and the described exhaust connection tube (2) of described through hole are tightly connected, also be connected with in the upper end of screens (12) there is cone point and with screens (12) coaxial lead rain parts (14), in described shell (11) bottom, a ponding shallow slot (16) is formed between weather shield (13) and described exhaust connection tube (2) top.
10. rain-proof type exhaust silencer according to claim 9, is characterized in that: the top of described exhaust connection tube (2) is not less than 10mm to the upper distance limit of described ponding shallow slot (16); The top of described exhaust connection tube (2) to described screens (12) bottom between distance be not less than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500149.6A CN104234803B (en) | 2014-09-26 | 2014-09-26 | Rainproof structure used in silencer and silencer adopting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500149.6A CN104234803B (en) | 2014-09-26 | 2014-09-26 | Rainproof structure used in silencer and silencer adopting structure |
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| Publication Number | Publication Date |
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| CN104234803A CN104234803A (en) | 2014-12-24 |
| CN104234803B true CN104234803B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410500149.6A Active CN104234803B (en) | 2014-09-26 | 2014-09-26 | Rainproof structure used in silencer and silencer adopting structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973191B (en) * | 2019-03-28 | 2020-09-29 | 潍柴动力股份有限公司 | Waterproof type tail pipe |
| CN111520220A (en) * | 2020-05-23 | 2020-08-11 | 深圳中雅机电实业有限公司 | Install leading rain module in silencer and have silencer of this module |
| CN115675811A (en) * | 2022-11-16 | 2023-02-03 | 中国舰船研究设计中心 | Marine host computer waterproof big gun device that exhausts |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6374944B1 (en) * | 2000-05-31 | 2002-04-23 | Eaton Corporation | Silencer with internal rain diverter |
| CN2685579Y (en) * | 2003-10-31 | 2005-03-16 | 哈尔滨工程大学 | Vertical double air-inlet exhaust sound-absorber for shipping diesel oil engine |
| CN201425296Y (en) * | 2009-03-20 | 2010-03-17 | 何乃昌 | Novel high-efficiency muffler |
| CN201884862U (en) * | 2010-12-31 | 2011-06-29 | 无锡市世一电力机械厂 | Pipeline rain shield |
| CN203839033U (en) * | 2014-05-16 | 2014-09-17 | 启东兴东石化设备制造有限责任公司 | Capacity expanding type resistive compound emptying muffler |
| CN204140175U (en) * | 2014-09-26 | 2015-02-04 | 深圳中雅机电实业有限公司 | For the rain-proof structure in silencing apparatus and the silencing apparatus applying this structure |
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