CN112196652A - Cooling structure and ship body exhaust structure with same - Google Patents
Cooling structure and ship body exhaust structure with same Download PDFInfo
- Publication number
- CN112196652A CN112196652A CN202010932788.5A CN202010932788A CN112196652A CN 112196652 A CN112196652 A CN 112196652A CN 202010932788 A CN202010932788 A CN 202010932788A CN 112196652 A CN112196652 A CN 112196652A
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- China
- Prior art keywords
- exhaust
- cooling
- wall
- exhaust pipeline
- pipe
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/004—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
Abstract
The invention relates to the technical field of ship equipment, in particular to a cooling structure, which comprises an exhaust pipeline and a cooling shell, wherein the exhaust pipeline is arranged in the cooling shell; the cooling shell is covered on the outer wall of the exhaust pipeline, a cooling medium is communicated in a cavity defined by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, a through hole is formed in the pipe wall of the exhaust pipeline, and two ends of the through hole are respectively communicated with the inner cavity of the exhaust pipeline and the cavity. The cooling structure fully achieves the purpose of water-air mixing cooling and has the advantages of energy conservation and consumption reduction. The invention also provides a ship body exhaust structure, which further comprises a main engine exhaust pipe and a ship board outer plate, wherein two ends of the exhaust pipeline are respectively connected with an exhaust port of the main engine exhaust pipe and an exhaust port of the ship board outer plate. The ship body exhaust structure improves the heat dissipation effect of the ship exhaust process, reduces the heat energy transferred to the ship body by the exhaust pipeline, and avoids the problems of paint removal, aging and the like caused by the heating of the ship body.
Description
Technical Field
The invention relates to the technical field of ship equipment, in particular to a cooling structure and a ship body exhaust structure with the same.
Background
The exhaust patterns of the ship include a dry exhaust pattern and a wet exhaust pattern. Dry exhaust types typically provide chimney channels, which run side-by-side above the compass deck. The wet exhaust type generally performs a water-gas mixture cooling process at an appropriate position of the rear portion of the supercharger, and then exhausts the gas to both sides. The dry exhaust type has the disadvantages of large volume, large mass and adverse effect on the heat dissipation of the engine room. Although the wet exhaust type has a small advantage in volume and mass compared to the dry exhaust type, the cooling effect of the exhaust pipe is not ideal in the current wet exhaust structure design. The existing wet exhaust type generally sprays cooling liquid to the outer wall of the exhaust pipe in a spraying mode, so that the temperature of the pipe wall is reduced, and the significance of completely realizing water-gas mixing and temperature reduction is not realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a cooling structure and a ship exhaust structure with the cooling structure, which can improve the cooling effect of a wet exhaust type exhaust pipe.
In order to solve the technical problems, the invention adopts the technical scheme that: a cooling structure includes an exhaust duct and a cooling housing;
the cooling shell is covered on the outer wall of the exhaust pipeline, a cooling medium is communicated in a cavity defined by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, a through hole is formed in the pipe wall of the exhaust pipeline, and two ends of the through hole are respectively communicated with the inner cavity of the exhaust pipeline and the cavity.
In an optional embodiment, the cooling shell is arranged along the circumferential direction of the exhaust pipeline, two or more through holes are arranged on the pipe wall at intervals along the circumferential direction of the exhaust pipeline, and two or more through holes are arranged on the pipe wall at intervals along a generatrix of the exhaust pipeline.
In an optional embodiment, the distance between any two adjacent through holes arranged at intervals along a generatrix of the exhaust pipeline ranges from 20mm to 60mm, and the number of the through holes arranged at intervals along the circumferential direction of the exhaust pipeline ranges from 8 to 12.
In an alternative embodiment, the aperture of the through hole ranges from 5mm to 15 mm.
In an alternative embodiment, the side wall of the cooling housing is provided with a cooling medium inlet, and the flux of the cooling medium inlet is larger than that of the through hole.
In an alternative embodiment, the cross-sectional shape of the pipe wall of the exhaust duct and the cross-sectional shape of the inner wall of the cooling housing are both circular.
In an alternative embodiment, the exhaust duct and the cooling housing are welded together.
The invention also provides a ship body exhaust structure, which further comprises a main engine exhaust pipe and a ship board outer plate, wherein two ends of the exhaust pipeline are respectively connected with an exhaust port of the main engine exhaust pipe and an exhaust port of the ship board outer plate.
In an optional embodiment, the refrigerator further comprises a refrigerating system, the cooling medium is cooling water, and the cooling water is cooled by the refrigerating system and then is introduced into the chamber.
In an optional embodiment, the outboard ship further comprises a seat plate welded on the inner wall of the outboard ship, the exhaust pipeline is locked with the seat plate, and the seat plate is provided with an opening corresponding to the exhaust port of the outboard ship.
The invention has the beneficial effects that: the cooling shell is covered on the outer wall of the exhaust pipeline, a cavity for storing and circulating a cooling medium is enclosed by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, the temperature in the ship cabin can be prevented from rising, the through hole is formed in the pipe wall of the exhaust pipeline, so that the cavity is communicated with the inner cavity of the exhaust pipeline, the cooling medium in the cavity is in heat exchange with the outer wall of the exhaust pipeline after contacting, the temperature of the outer wall of the exhaust pipeline is reduced, and the cooling medium is easy to enter the inner cavity of the exhaust pipeline through the through hole and contact with the inner wall of the exhaust pipeline for heat exchange due to high hot air flow speed and low pressure in the exhaust pipeline, so that the purposes of water-air mixing and cooling are fully achieved, and the cooling structure has the advantages of energy conservation and consumption reduction. The invention also provides a ship body exhaust structure, wherein the air inlet end of the exhaust pipeline is connected with the exhaust pipe of the main machine, the air outlet end of the exhaust pipeline is connected with the exhaust port of the ship board outer plate, according to the working principle of the cooling structure, high-temperature gas generated by the main machine is introduced into the exhaust pipeline through the exhaust pipe of the main machine, then the temperature is reduced to low-temperature gas under the cooling action of the cooling structure, and the low-temperature gas and a cooling medium are exhausted from the exhaust port of the ship board outer plate together, so that the heat dissipation effect in the ship exhaust process is improved, the heat energy transferred to the ship body by the exhaust pipeline is reduced, and the problems of depain.
Drawings
FIG. 1 is a schematic structural view of a cooling structure according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of a cooling structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a ship hull exhaust structure according to an embodiment of the invention;
description of reference numerals:
1. an exhaust duct; 11. a through hole;
2. cooling the housing;
3. a host exhaust pipe;
4. a side outer plate;
5. a seat board.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, a cooling structure of the present invention includes an exhaust duct and a cooling housing;
the cooling shell is covered on the outer wall of the exhaust pipeline, a cooling medium is communicated in a cavity defined by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, a through hole is formed in the pipe wall of the exhaust pipeline, and two ends of the through hole are respectively communicated with the inner cavity of the exhaust pipeline and the cavity.
From the above description, the beneficial effects of the present invention are: the cooling shell is covered on the outer wall of the exhaust pipeline, a cavity for storing and circulating a cooling medium is enclosed by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, the temperature in the ship cabin can be prevented from rising, the through hole is formed in the pipe wall of the exhaust pipeline, so that the cavity is communicated with the inner cavity of the exhaust pipeline, the cooling medium in the cavity is in heat exchange with the outer wall of the exhaust pipeline after contacting, the temperature of the outer wall of the exhaust pipeline is reduced, and the cooling medium is easy to enter the inner cavity of the exhaust pipeline through the through hole and contact with the inner wall of the exhaust pipeline for heat exchange due to high hot air flow speed and low pressure in the exhaust pipeline, so that the purposes of water-air mixing and cooling are fully achieved, and the cooling structure has the advantages of energy conservation and consumption reduction.
Furthermore, the cooling shell is arranged along the circumferential direction of the exhaust pipeline, more than two through holes are formed in the pipe wall at intervals along the circumferential direction of the exhaust pipeline, and more than two through holes are formed in the pipe wall at intervals along a bus of the exhaust pipeline.
From the above description, it can be known that the structural design of introducing the cooling medium in multiple holes can improve the uniformity and efficiency of heat dissipation of the exhaust pipe, and prevent the problems of aging, carbon deposition and the like caused by uneven pipe wall temperature.
Furthermore, the distance between any two adjacent through holes arranged at intervals along the bus of the exhaust pipeline ranges from 20mm to 60mm, and the number of the through holes arranged at intervals along the circumferential direction of the exhaust pipeline ranges from 8 to 12.
From the above description, it is found through experiments that the arrangement structure of the through holes in the range can sufficiently achieve the heat exchange effect between the cooling medium and the pipe wall of the exhaust pipeline and the hot gas in the exhaust pipeline, and balance the load of the refrigeration system, thereby achieving the purposes of saving energy and reducing consumption.
Furthermore, the aperture range of the through hole is 5 mm-15 mm.
From the above description, it can be known that if the aperture of the through hole is too large, the heat exchange time of the cooling medium on the outer wall of the exhaust duct is correspondingly shortened, which not only increases the energy consumption, but also affects the cooling effect of the exhaust duct; the aperture design undersize of through-hole then is unfavorable for cooling medium to get into exhaust duct's inner chamber, has reduced the aqueous vapor mixed effect of cooling medium and steam, also can lead to the cooling effect to receive the influence.
Furthermore, a cooling medium inlet is formed in the side wall of the cooling shell, and the flux of the cooling medium inlet is greater than that of the through hole.
From the above description, it can be seen that the flux of the cooling medium inlet is designed to be larger than the total flux of the through-holes, i.e. it is ensured that the cooling medium should fill the entire chamber and have a certain kinetic energy when passing through the through-holes, so that a better cooling of the side walls of the exhaust duct and a sufficient water-vapor mixture cooling can be achieved.
Further, the cross-sectional shape of the pipe wall of the exhaust pipe and the cross-sectional shape of the inner wall of the cooling shell are both circular.
As can be seen from the above description, the circular cross-sectional design increases the heat exchange area of the cooling medium with the exhaust duct and reduces the energy consumption generated during the cooling operation.
Further, the exhaust pipeline and the cooling shell are connected in a welding mode.
From the above description, it can be known that the exhaust duct and the cooling shell are connected by adopting the prefabricated welding, and can be directly installed on the required equipment, thereby reducing the difficulty of field installation and being beneficial to the improvement of production.
The ship body exhaust structure further comprises a host exhaust pipe and a ship board outer plate, and two ends of the exhaust pipeline are connected with an exhaust port of the host exhaust pipe and an exhaust port of the ship board outer plate respectively.
From the above description, the beneficial effects of the present invention are: the utility model provides a hull exhaust structure, the host computer blast pipe is connected to exhaust duct's inlet end, exhaust duct's the gas vent of end connection ship board planking of giving vent to anger, according to above-mentioned cooling structure's theory of operation, the high temperature gas that the host computer produced lets in the exhaust duct through the host computer blast pipe, then fall the temperature at cooling structure's cooling effect and become low temperature gas, low temperature gas and coolant are discharged jointly by the gas vent of ship board planking, thereby the radiating effect of ship exhaust process has been improved, reduce the heat energy that exhaust duct transmitted for the hull, avoid the hull to be heated and lead to the depainting, ageing scheduling problem.
The cooling system is further included, the cooling medium is cooling water, and the cooling water is cooled by the cooling system and then is introduced into the cavity.
From the above description, it can be known that the seawater can be used for refrigeration in a manner suitable for local conditions, and the seawater after the cooling operation is directly discharged into the sea, so that the energy consumption in the refrigeration process is reduced, and the energy-saving and environment-friendly effects are achieved.
The exhaust device comprises a ship board outer plate, and is characterized by further comprising a seat plate, wherein the seat plate is welded on the inner wall of the ship board outer plate, the exhaust pipeline is in locking connection with the seat plate, and an opening is formed in the position, corresponding to the exhaust port of the ship board outer plate, of the seat plate.
From the above description, exhaust duct passes through the bedplate and is connected with ship board is indirect, has further reduced the heat-conduction ability between exhaust duct and the ship board, plays certain guard action to the ship board, avoids it to be heated depainting ageing, has improved mounting structure's stability.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a cooling structure comprises an exhaust pipeline 1 and a cooling shell 2, wherein the exhaust pipeline 1 and the cooling shell 2 are both made of steel, the exhaust pipeline 1 is a phi 219 x 13-321 seamless steel pipe, and the specification of the cooling shell 2 is phi 273 x 9-200; the cooling shell 2 covers the outer wall of the exhaust pipeline 1, a cooling medium is introduced into a cavity enclosed by the inner wall of the cooling shell 2 and the outer wall of the exhaust pipeline 1, a through hole 11 is formed in the pipe wall of the exhaust pipeline 1, and two ends of the through hole 11 are respectively communicated with the inner cavity of the exhaust pipeline 1 and the cavity. The through holes 11 are obliquely formed, an included angle is formed between the opening direction of the through holes 11 and the diameter of the exhaust pipeline 1, the included angle between the through holes 11 and the exhaust pipeline 1 is periodically increased or decreased along the axial direction of the exhaust pipeline 1, and the included angle ranges from 5 degrees to 15 degrees. The structure of the through-hole 11 should also be adapted according to the manner of installation of the exhaust duct 1. The aperture of the through-holes 11 located at a lower level should be smaller than the aperture of the through-holes 11 located at a higher level, so that the flux of the through-holes 11 in the circumferential direction is ensured to be uniform. Cooling housing 2 sets up along exhaust duct 1's circumference, more than two through-hole 11 is in along exhaust duct 1's circumference equipartition on the pipe wall, more than two through-hole 11 is in along exhaust duct 1's generating line interval setting on the pipe wall. The number of the through holes 11 arranged at intervals along the generatrix of the exhaust pipe 1 is 4 in this embodiment, the distance between any two adjacent through holes 11 arranged at intervals along the generatrix of the exhaust pipe 1 is 20mm in this embodiment, and the number of the through holes 11 arranged at intervals along the circumferential direction of the exhaust pipe 1 is 8 in this embodiment. The aperture of the through hole 11 is 5mm in this embodiment. The side wall of the cooling shell 2 is provided with a cooling medium inlet, and the flux of the cooling medium inlet is larger than the sum of the fluxes of all the through holes 11. The cooling shell 2 is provided with an extension connecting pipe at a cooling medium inlet along a direction tangential to the pipe wall of the exhaust pipeline 1, so that swirling flow of the cooling medium in the cooling chamber is facilitated, the cooling time is longer, the heat exchange effect is better, and the end part of the extension connecting pipe is provided with a connecting pipe flange. The specification of the extension connecting pipe is phi 76 multiplied by 8. The material of the connecting pipe flange is DN65-PN6RF (series II) GB 9119-2000. The cross-sectional shape of the pipe wall of the exhaust duct 1 and the cross-sectional shape of the inner wall of the cooling housing 2 are both circular. Exhaust pipe flanges are arranged at two ends of the exhaust pipeline 1, and the total axial length of the exhaust pipeline 1 is 341 mm. The distance from one end of the cooling shell 2 to one end of the exhaust pipeline 1 is 70mm, and the distance from the other end of the cooling shell 2 to the other end of the exhaust pipeline 1 is 71 mm. The material of the exhaust pipe flange is DN200-PN6RF (series II) GB 9119-2000. The cooling housing 2 has a total length of 200mm projected on the axis of the exhaust duct 1. The exhaust duct 1 and the cooling housing 2 are welded together. The cooling shell 2 comprises a sleeve and steel seal plates, the sleeve is coaxially arranged outside the exhaust pipeline 1 in a surrounding mode, and two ends of the sleeve are connected with the outer wall of the exhaust pipeline 1 through the two annular steel seal plates respectively. And the steel seal plate is respectively welded with the sleeve and the outer wall of the exhaust pipeline 1.
The exhaust pipeline 1 and the cooling shell 2 are prefabricated in an integral workshop, a through hole 11 is machined in the exhaust pipeline 1, then the sleeve and the steel sealing plate are correspondingly installed on the outer wall, provided with the through hole 11, of the exhaust pipeline 1 and welded, and finally an exhaust pipe flange and a pipe connecting flange are welded.
Referring to fig. 1 and fig. 2, a second embodiment of the present invention is different from the first embodiment in that: the distance between any two adjacent through holes 11 arranged at intervals along the generatrix of the exhaust pipe 1 is 40mm in the present embodiment, and the number of the through holes 11 arranged at intervals along the circumferential direction of the exhaust pipe 1 is 10 in the present embodiment. The aperture of the through hole 11 is 10mm in this embodiment.
Referring to fig. 1 and fig. 2, a difference between the third embodiment of the present invention and the first embodiment of the present invention is: the distance between any two adjacent through holes 11 arranged at intervals along the generatrix of the exhaust pipe 1 is 60mm in this embodiment, and the number of the through holes 11 arranged at intervals along the circumferential direction of the exhaust pipe 1 is 12 in this embodiment. The aperture of the through hole 11 is 15mm in this embodiment.
Referring to fig. 3, a fourth embodiment of the present invention is: a ship body exhaust structure with the cooling structure of the first, second or third embodiment further comprises a main engine exhaust pipe 3 and a side outer plate 4, wherein two ends of the exhaust pipeline 1 are respectively connected with an exhaust port of the main engine exhaust pipe 3 and an exhaust port of the side outer plate 4. The cooling system is characterized by further comprising a refrigerating system, the cooling medium is cooling water, and the cooling water is cooled by the refrigerating system and then is introduced into the cavity. Still include bedplate 5, bedplate 5 welds on the inner wall of ship board planking 4, exhaust duct 1 and bedplate 5 lock joint, bedplate 5 corresponds the exhaust port department of ship board planking 4 has the opening. The diameter of the opening is 235 mm.
In summary, the present invention provides a cooling structure, in which a cooling housing is covered on an outer wall of an exhaust duct, and a chamber for storing and circulating a cooling medium is enclosed by an inner wall of the cooling housing and the outer wall of the exhaust duct, the closed cooling structure can avoid temperature rise in a cabin, a through hole is formed on a pipe wall of the exhaust duct to communicate the chamber with an inner cavity of the exhaust duct, and the cooling medium in the chamber is in contact with the outer wall of the exhaust duct for heat exchange, so that the temperature of the outer wall of the exhaust duct is reduced. The structural design of leading in the cooling medium by the plurality of holes is adopted, so that the uniformity and the efficiency of the heat dissipation of the exhaust pipeline can be improved, and the problems of aging, carbon deposition and the like caused by uneven pipe wall temperature are prevented. The through hole arrangement structure in the range can fully realize the heat exchange effect of the cooling medium, the pipe wall of the exhaust pipeline and hot gas in the exhaust pipeline through experimental measurement, and balance the load of the refrigeration system, thereby achieving the purposes of energy conservation and consumption reduction. The aperture of the through hole is designed to be too large, so that the heat exchange time of the cooling medium on the outer wall of the exhaust pipeline is correspondingly shortened, the energy consumption is increased, and the cooling effect of the exhaust pipeline is influenced; the aperture design undersize of through-hole then is unfavorable for cooling medium to get into exhaust duct's inner chamber, has reduced the aqueous vapor mixed effect of cooling medium and steam, also can lead to the cooling effect to receive the influence. The flux of the cooling medium inlet is designed to be larger than the total flux of the through holes, namely, the cooling medium is ensured to be filled in the whole cavity, and certain kinetic energy is provided when the cooling medium passes through the through holes, so that the side wall of the exhaust pipeline can be cooled better and the sufficient water-vapor mixture cooling can be realized. The circular cross-section design increases the heat exchange area between the cooling medium and the exhaust duct and reduces the energy consumption generated during the cooling operation. The exhaust pipeline and the cooling shell are connected in a prefabricated welding mode, and can be directly installed on required equipment, so that the difficulty of field installation is reduced, and the production is improved. The invention also provides a ship body exhaust structure, wherein the air inlet end of the exhaust pipeline is connected with the exhaust pipe of the main machine, the air outlet end of the exhaust pipeline is connected with the exhaust port of the ship board outer plate, according to the working principle of the cooling structure, high-temperature gas generated by the main machine is introduced into the exhaust pipeline through the exhaust pipe of the main machine, then the temperature is reduced to low-temperature gas under the cooling action of the cooling structure, and the low-temperature gas and a cooling medium are exhausted from the exhaust port of the ship board outer plate together, so that the heat dissipation effect in the ship exhaust process is improved, the heat energy transferred to the ship body by the exhaust pipeline is reduced, and the problems of depain. The cooling water is utilized to refrigerate in a mode suitable for local conditions, and the cooling water after cooling operation is directly discharged to the sea, so that the energy consumption in the refrigerating process is reduced, and the energy-saving and environment-friendly effects are achieved. The exhaust duct passes through the bedplate and is connected with the ship board is indirect, has further reduced the heat-conduction ability between exhaust duct and the ship board, plays certain guard action to the ship board, avoids it to be heated depainting ageing, has improved mounting structure's stability.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A cooling structure, comprising an exhaust duct and a cooling housing;
the cooling shell is covered on the outer wall of the exhaust pipeline, a cooling medium is communicated in a cavity defined by the inner wall of the cooling shell and the outer wall of the exhaust pipeline, a through hole is formed in the pipe wall of the exhaust pipeline, and two ends of the through hole are respectively communicated with the inner cavity of the exhaust pipeline and the cavity.
2. The cooling structure according to claim 1, wherein the cooling housing is provided along a circumferential direction of the exhaust duct, two or more of the through holes are provided at intervals in the circumferential direction of the exhaust duct on the duct wall, and two or more of the through holes are provided at intervals along a generatrix of the exhaust duct on the duct wall.
3. The cooling structure according to claim 2, wherein a pitch of any two adjacent through holes provided at intervals along a generatrix of the exhaust duct is in a range of 20mm to 60mm, and a number of the through holes provided at intervals in a circumferential direction of the exhaust duct is in a range of 8 to 12.
4. The cooling structure according to claim 1, wherein the aperture of the through-hole is in a range of 5mm to 15 mm.
5. The cooling structure according to claim 1, wherein a side wall of the cooling housing is opened with a cooling medium inlet having a flux larger than that of the through-hole.
6. The cooling structure according to claim 1, wherein a sectional shape of a pipe wall of the exhaust duct and a sectional shape of an inner wall of the cooling shell are both circular.
7. The cooling structure according to claim 1, wherein the exhaust duct and the cooling housing are welded.
8. A ship body exhaust structure with the cooling structure according to any one of claims 1 to 7, further comprising a main engine exhaust pipe and a side outer plate, wherein both ends of the exhaust pipe are connected to an exhaust port of the main engine exhaust pipe and an exhaust port of the side outer plate, respectively.
9. The exhaust structure of the ship hull according to claim 8, further comprising a refrigeration system, wherein the cooling medium is cooling water, and the cooling water is cooled by the refrigeration system and then is introduced into the chamber.
10. The hull exhaust structure according to claim 8, further comprising a seat plate welded to an inner wall of a side plating, the exhaust duct being locked with the seat plate, the seat plate having an opening corresponding to an exhaust port of the side plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932788.5A CN112196652A (en) | 2020-09-08 | 2020-09-08 | Cooling structure and ship body exhaust structure with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932788.5A CN112196652A (en) | 2020-09-08 | 2020-09-08 | Cooling structure and ship body exhaust structure with same |
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| Publication Number | Publication Date |
|---|---|
| CN112196652A true CN112196652A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010932788.5A Pending CN112196652A (en) | 2020-09-08 | 2020-09-08 | Cooling structure and ship body exhaust structure with same |
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| CN (1) | CN112196652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738513A (en) * | 2021-09-07 | 2021-12-03 | 中国航空发动机研究院 | Cooling device and ship power airflow cooler |
| CN113976191A (en) * | 2021-12-27 | 2022-01-28 | 苏州英特模汽车科技有限公司 | Environmental chamber and gas vent equipment thereof |
-
2020
- 2020-09-08 CN CN202010932788.5A patent/CN112196652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738513A (en) * | 2021-09-07 | 2021-12-03 | 中国航空发动机研究院 | Cooling device and ship power airflow cooler |
| CN113976191A (en) * | 2021-12-27 | 2022-01-28 | 苏州英特模汽车科技有限公司 | Environmental chamber and gas vent equipment thereof |
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