CN104843165A - Large-diameter marine air pipe head - Google Patents
Large-diameter marine air pipe head Download PDFInfo
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- CN104843165A CN104843165A CN201510258986.7A CN201510258986A CN104843165A CN 104843165 A CN104843165 A CN 104843165A CN 201510258986 A CN201510258986 A CN 201510258986A CN 104843165 A CN104843165 A CN 104843165A
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- air pipe
- pipe head
- floating drum
- inner housing
- marine air
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Abstract
The invention provides a large-diameter marine air pipe head. The large-diameter marine air pipe head comprises an outer shell (1), a plurality of inner shells (2), an end cover (3), a flange connector (4), floating barrels (5) and sealing covers (6). The end cover (3) is arranged at the top of the outer shell (1), and the flange connector (4) is mounted at the bottom of the outer shell (1). The inner shells (2) are arranged in the outer shell (1). The sealing covers (6) are arranged on the upper sides of the inner shells (2) respectively to form switching cavities (7). The spherical floating barrels (5) are arranged in the switching cavities (7) respectively. A round hole (12) is formed in each sealing cover (6). Each inner shell (2) is in the shape of a barrel with an upward opening. A protective net (9) is mounted on the round hole (12) of each sealing cover (6). A plurality of air inlets (11) formed in the outer shell (1) are communicated with the lower sides of the switching cavities (7) of the respective inner shells (2). The large-diameter marine air pipe head can seal air channels timely and effectively and is economical and durable.
Description
Technical field
The present invention relates to a kind of marine equipment, particularly relating to a kind of heavy caliber marine air pipe head for preventing in liquid inflow cabin.
Background technology
Air pipe head is mainly used on various ships, for keeping ventilative pipeline unimpeded, making air pressure in cabin close to barometric pressure, thus ensure that cabin pressure is no more than the design pressure of itself by ventilative and air-breathing.When hull run-off the straight or when running into stormy waves, water flows into admission port, and the floating drum in air pipe head floats rapidly closedown of pipeline of breathing freely of fit with seal ring under buoyancy, thus prevention water enters cabin; After water flows out, floating drum falls to original position, and ventilative pipeline continues unimpeded.
Conventional air pipe head, generally in cuboid, adopts iron material to make, and volume, weight are comparatively large, difficult, and the weight that can increase ship.Floating drum is generally metal and floats pie, and along with the inflow and outflow of water, floating drum frequently floats and drops, often and seal cover cap or switch bottom chamber clash into, easily produce slight crack.In order to make floating drum and seal ring accurately fit, is usually also provided with registration device, complex structure, inconvenient maintenance in air pipe head, when registration device get rusty or et out of order time can affect floating drum and float in time, gas-permeable channels can not be closed in time.The grille guard of air pipe head is arranged on the outside of air pipe head usually, is easily wound around by sea grass and the destruction of seabird.For heavy caliber air pipe head, when water enters admission port, because the bore of air pipe head is very large, the water surface rises comparatively slow, and floating drum can not float rapidly fits with seal ring, and when jolting appears in ship, water is just easy to flow into cabin.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of novel heavy caliber marine air pipe head, can close gas-permeable channels economy and durability and can ensure that the water in water tank can be discharged in time again timely and effectively, avoid shipwreck.
For solving the problems of the technologies described above, marine air pipe head of the present invention comprises body skin, inner housing, end cap, flange-interface, floating drum, seal cover cap, and described body skin top is provided with end cap, mounting flange interface bottom it, body skin inside is provided with inner housing, described inner housing is multiple, the top of each inner housing is respectively equipped with seal cover cap, formed and switch chamber, floating drum is spherically be located in each switching chamber, described each seal cover cap has circular hole, diameter is less than floating drum, seal ring is inlaid in the circular hole of seal cover cap, end cap, venting cavity is surrounded between body skin and each inner housing, the circular hole of top on each seal cover cap of venting cavity is communicated with each switching chamber, be communicated with flange-interface one end below this venting cavity, each inner housing described is the tubbiness of opening upwards, the diameter in each switching chamber is more bigger than inner spar diameter, circular hole on described each seal cover cap is positioned at directly over each switching chamber, on described each seal cover cap, grille guard is all equipped with in the top of circular hole, body skin is provided with multiple admission port, each admission port is communicated with below the switching chamber of respective inner housing,
In said structure, owing to being provided with multiple inner housing in body skin, therefore when water flows into inner housing, the water surface can rise rapidly, and floating drum is fitted with seal ring in time, prevents the water inflow cabin when ship jolts.Be equipped with floating drum in inner housing simultaneously, the buoyancy of ship can be increased relative to single floating drum, improve the safety of ship when run-off the straight.Inner housing is the tubbiness of opening upwards, the diameter switching chamber is more bigger than spar diameter, therefore when a small amount of swelling enters to switch chamber, floating drum just can float rapidly, diameter again owing to switching chamber is only bigger than spar diameter and circular hole on seal cover cap is positioned at directly over switching chamber, therefore can not there is left and right drift in floating drum, can accurately fit with the seal ring be arranged in circular hole, thus close gas-permeable channels rapidly, prevent water from flowing into cabin, structure is simple, fault is less likely to occur, and just can see floating drum by admission port, be convenient to pinpoint the problems, process in time.Grille guard is arranged on the top of seal cover cap circular hole, can avoid being wound around by sea grass, is destroyed by seabird.
As a modification of the present invention, inner housing set in described body skin is 2.Adopt this structure, the space in body skin can be made well to be utilized.
As a modification of the present invention, the diameter 2-4mm larger than spar diameter in described switching chamber; Floating drum so not only can be made to be elevated freely but also accurately can to fit with seal ring, blocked water and flow into cabin.
As a further improvement on the present invention, described floating drum employing high strength, impact-resistant non-metallic material are made; Adopt this material, floating drum can be made easily to float, shock-resistant, be not easy to break, can not get rusty, thus increase the service life.
Improve as another kind of the present invention, described grille guard is that back-off is bowl-shape, and lower end edge circular hole is fixed on seal cover cap, and the inside face of end cap is fixed in upper end; The destruction that grille guard causes because of the impact of floating drum can be avoided.
Improve as another kind of the present invention, in semisphere below described switching chamber, suitable with floating drum shape; After water flows out switching chamber, floating drum just can drop from the top switching chamber, adopts said structure, can reduce impulsive force when floating drum falls, increase the service life.
As a kind of prioritization scheme of the present invention, described seal ring cross section internal diameter is curved, with to contact spherical shape suitable; The area of contact of floating drum and seal ring can be expanded, thus lift-off seal effect.
As an important improvement of the present invention, the body skin of described air pipe head is cylindric; For the air pipe head of cuboid, the cylindrical air tube head volume of same size is less, and take up room little, weight is lighter.
As another important improvement of the present invention, described air pipe head adopts light-high-strength resistant material such as ferroaluminium to make.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:
Fig. 1 is existing air pipe head schematic diagram.
Fig. 2 is marine air pipe head longitudinal profile schematic diagram of the present invention.In figure: 1-body skin 2-inner housing 3-end cap 4-flange 5-floating drum 6-seal cover cap 7-switches chamber 8-venting cavity 9-grille guard 10-seal ring 11-admission port 12-circular hole.
Fig. 3 is the schematic transverse generalized section of marine air pipe head of the present invention.
Fig. 4 is the schematic diagram of seal ring.
Fig. 5 is the longitudinal profile schematic diagram of seal ring.
Detailed description of the invention
As shown in Figure 2 and Figure 3: a kind of heavy caliber marine air pipe head, comprise body skin 1, inner housing 2, end cap 3, flange-interface 4, floating drum 5, seal cover cap 6, described body skin 1 top is provided with end cap 3, and end cap 3 screw is arranged on the top of body skin 1, opens end cap 3 and can clear up grille guard 9; The bottom mounting flange interface 4 of body skin 1; Two ends, body skin 1 inner left and right are provided with 2 inner housings 2, the tubbiness of described 2 inner housings 2 all in opening upwards, the top of each inner housing 2 is respectively equipped with seal cover cap 6, seal cover cap 6 and inner housing 2 are fastenedly connected, formed and switch chamber 7, floating drum 5 is located in each switching chamber 7 for spherical, each seal cover cap 6 has circular hole 12, circular hole 12 diameter is less than the diameter of floating drum 5, and seal ring 10 is inlaid in the circular hole 12 of seal cover cap 6.End cap 3, between body skin 1 and each inner housing 2, surround venting cavity 8, the circular hole 12 of top on each seal cover cap 6 of venting cavity 8 is communicated with each switching chamber 7, be communicated with flange-interface 4 one end below this venting cavity 8, the diameter in each switching chamber 7 is more bigger than inner floating drum 5 diameter, such as large 2-4mm, can ensure that the accurately laminating but also can freely be elevated of left and right drift and seal ring 10 not only can not occur floating drum 5 in the process risen.Floating drum 5 adopts the crash-proof material of lightweight to make, as non-metal PVC material etc., larger relative to metallic material buoyancy more shock-resistant, and is not easy to get rusty.The bottom shape of inner housing 2 can be arranged to semisphere, suitable with floating drum 5 shape, can reduce impact when floating drum 5 drops like this.Circular hole 12 on seal cover cap 6 is located at and is switched directly over chamber 7, on each seal cover cap 6, grille guard 9 is all equipped with in the top of circular hole 12, grille guard 9 is bowl-shape in back-off, lower end rivet or other modes are fixed on around the circular hole 12 of seal cover cap 6 along circle, the inside face of end cap 3 is fixed in upper end, floating drum 5 can be made like this can not to impact grille guard 9 when rising and fitting with seal ring 107, the service life of grille guard 9 can be extended; On body skin 1, both sides are provided with two admission ports 11, and each admission port 11 is communicated with respectively with below the switching chamber 7 of left and right inner housing 2, thus formed cabin inside and outside between air by-pass passage, ensure that cabin is inside and outside and maintain equilibrium of pressure, admission port 11 number also can be multiple.For heavy caliber air pipe head, if arrange the larger inner housing 2 of a diameter, after water enters admission port 11, liquid level rises can be slow, ball float can not rapidly and seal ring 10 fit, when ship jolts, the water capacity easily enters cabin; Two inner housings 2 are set, can the inner space of Appropriate application air pipe head, when hull run-off the straight or stormy waves larger time, water through left and right admission port 11 flow into two switch chambeies 7, because the diameter of inner housing 2 is less, the width switching chamber 7 is only bigger than floating drum 5, the water surface can rise rapidly in switching chamber 7, and floating drum 5 floats instantaneously under buoyancy of water, fits rapidly with seal ring 10, thus stop current to enter cabin, can avoid causing water to enter cabin slowly because liquid level rose; Two ball is set simultaneously and can strengthens buoyancy, avoid shipwreck when ship run-off the straight.Switch chamber 7 when water flows out, along with the water surface reduces, floating drum 5 can drop to the bottom switching chamber 7, and air by-pass passage continues to keep unimpeded.Because admission port 11 is communicated with the bottom switching chamber 7, after water flows out switching chamber 7, in the situation that floating drum 5 can be seen by admission port 11 place, be convenient to pinpoint the problems, process in time.
From seal ring 10 shape shown in Fig. 4, Fig. 5, seal ring 10 cross section internal diameter is curved, with to contact spherical shape suitable; The area of contact of floating drum 5 and seal ring 10 can be expanded, thus lift-off seal effect.
For the present invention, an important improvement is that described air pipe head adopts light-high-strength resistant material material to make, and as ferroaluminium, relative to ironwork, the proportion of ferroaluminium is little, and ductility is better, is convenient to casting.
The present invention is not limited to the structure of the embodiment shown in Fig. 2 to Fig. 5.Marine air pipe head of the present invention can also have other structural distortion; shape as body skin 1 can be cuboid, inner housing 2 can for multiple; admission port 11 also can be multiple; the shape of floating drum 5 also can can have other shapes etc. for the bottom of column, inner housing 2 for the shape of pie, grille guard 9; as long as the improvement done on its general principles and conversion, all should be considered as falling into protection scope of the present invention.
Claims (10)
1. a heavy caliber marine air pipe head, comprise body skin (1), inner housing (2), end cap (3), flange-interface (4), floating drum (5), seal cover cap (6), described body skin (1) top is provided with end cap (3), mounting flange interface (4) bottom it, body skin (1) inside is provided with inner housing (2), it is characterized in that: described inner housing (2) is for multiple, the top of each inner housing (2) is respectively equipped with seal cover cap (6), formed and switch chamber (7), floating drum (5) is located in each switching chamber (7) for spherical, described each seal cover cap (6) has circular hole (12), diameter is less than floating drum (5) diameter, seal ring (10) is inlaid in the circular hole (12) of seal cover cap (6), end cap (3), venting cavity (8) is surrounded between body skin (1) and each inner housing (2), the circular hole (12) of top on each seal cover cap (6) of venting cavity (8) is communicated with each switching chamber (7), this venting cavity (8) below is communicated with flange-interface (4) one end, the tubbiness of described each inner housing (2) in opening upwards, the diameter of each switching chamber (7) is more bigger than inner floating drum (5) diameter, circular hole (12) on described each seal cover cap (6) is positioned at directly over each switching chamber (7), grille guard (9) is all equipped with in the top of the upper circular hole (12) of described each seal cover cap (6), body skin (1) is provided with multiple admission port (11), each admission port (11) is communicated with the below, switching chamber (7) of respective inner housing (2).
2. marine air pipe head according to claim 1, its feature with: inner housing (2) set in described body skin (1) is 2.
3. marine air pipe head according to claim 2, is characterized in that: the diameter 2-4mm larger than floating drum (5) diameter of described switching chamber (7).
4. marine air pipe head according to claim 3, is characterized in that: described floating drum (5) adopts high strength, impact-resistant non-metallic material is made.
5. marine air pipe head according to claim 4, is characterized in that: described grille guard (9) is bowl-shape in back-off, and lower end edge circular hole (12) is fixed on seal cover cap (6), and the inside face of end cap (3) is fixed in upper end.
6. marine air pipe head according to claim 5, is characterized in that: described switching chamber (7) below is in semisphere, suitable with floating drum (5) shape.
7. marine air pipe head according to claim 6, is characterized in that: described seal ring (10) cross section internal diameter is curved, with to contact spherical shape suitable.
8. the marine air pipe head according to any one of claim 1 to 7, is characterized in that: the body skin (1) of described air pipe head is in cylindric.
9. the marine air pipe head according to any one of claim 1 to 7, is characterized in that: described air pipe head adopts light-high-strength resistant material to make.
10. marine air pipe head according to claim 8, is characterized in that: described air pipe head adopts alfer to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258986.7A CN104843165A (en) | 2015-05-21 | 2015-05-21 | Large-diameter marine air pipe head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258986.7A CN104843165A (en) | 2015-05-21 | 2015-05-21 | Large-diameter marine air pipe head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104843165A true CN104843165A (en) | 2015-08-19 |
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ID=53843248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510258986.7A Pending CN104843165A (en) | 2015-05-21 | 2015-05-21 | Large-diameter marine air pipe head |
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| Country | Link |
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| CN (1) | CN104843165A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296797A (en) * | 2018-09-30 | 2019-02-01 | 广船国际有限公司 | Water blocking communication apparatus, empty cabin gas venting system and ship |
| CN110254684A (en) * | 2019-06-20 | 2019-09-20 | 中船黄埔文冲船舶有限公司 | Air grid device peculiar to vessel |
| CN115195945A (en) * | 2022-07-18 | 2022-10-18 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand with ventilative and overflow function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191308618A (en) * | 1913-04-12 | 1913-11-27 | John Broadfoot And Sons Ltd | Improvements in Ships' Ventilators. |
| CN1935597A (en) * | 2006-09-27 | 2007-03-28 | 马卫泽 | Marine air pipe head |
| CN201633915U (en) * | 2009-12-14 | 2010-11-17 | 陈海清 | Welded type air pipe head |
| CN201745740U (en) * | 2009-12-25 | 2011-02-16 | 中远船务工程集团有限公司 | Float ball self-closing valve |
| CN202029996U (en) * | 2011-01-13 | 2011-11-09 | 南通瑞达航海机械有限公司 | Double floating ball type air pipe head self-closing device |
| CN204606189U (en) * | 2015-05-21 | 2015-09-02 | 舟山市恒威船舶配件有限公司 | A kind of heavy caliber marine air pipe head |
-
2015
- 2015-05-21 CN CN201510258986.7A patent/CN104843165A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191308618A (en) * | 1913-04-12 | 1913-11-27 | John Broadfoot And Sons Ltd | Improvements in Ships' Ventilators. |
| CN1935597A (en) * | 2006-09-27 | 2007-03-28 | 马卫泽 | Marine air pipe head |
| CN201633915U (en) * | 2009-12-14 | 2010-11-17 | 陈海清 | Welded type air pipe head |
| CN201745740U (en) * | 2009-12-25 | 2011-02-16 | 中远船务工程集团有限公司 | Float ball self-closing valve |
| CN202029996U (en) * | 2011-01-13 | 2011-11-09 | 南通瑞达航海机械有限公司 | Double floating ball type air pipe head self-closing device |
| CN204606189U (en) * | 2015-05-21 | 2015-09-02 | 舟山市恒威船舶配件有限公司 | A kind of heavy caliber marine air pipe head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296797A (en) * | 2018-09-30 | 2019-02-01 | 广船国际有限公司 | Water blocking communication apparatus, empty cabin gas venting system and ship |
| CN110254684A (en) * | 2019-06-20 | 2019-09-20 | 中船黄埔文冲船舶有限公司 | Air grid device peculiar to vessel |
| CN115195945A (en) * | 2022-07-18 | 2022-10-18 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand with ventilative and overflow function |
| CN115195945B (en) * | 2022-07-18 | 2024-01-26 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand column with ventilation and overflow functions |
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Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |