CN112339961B - Steam-powered outboard cooling system for a marine vessel - Google Patents
Steam-powered outboard cooling system for a marine vessel Download PDFInfo
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- CN112339961B CN112339961B CN202011174216.1A CN202011174216A CN112339961B CN 112339961 B CN112339961 B CN 112339961B CN 202011174216 A CN202011174216 A CN 202011174216A CN 112339961 B CN112339961 B CN 112339961B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H20/001—Arrangements, apparatus and methods for handling fluids used in outboard drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H20/28—Arrangements, apparatus and methods for handling cooling-water in outboard drives, e.g. cooling-water intakes
- B63H20/285—Cooling-water intakes
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of ship outboard cooling, in particular to a steam power outboard cooling system for a ship. This a steam power outboard cooling system for boats and ships includes the steam turbine, condenser and conformal heat exchanger, conformal heat exchanger includes the heat exchanger casing, multirow heat exchange tube bow head and stern portion head, enclose between the housing plate of heat exchanger casing and the hull plate and close and form the sea water heat transfer chamber, each heat exchange tube is the straight tube that is parallel to each other, every row of heat exchange tube all is the pitch arc range setting with the shape looks adaptation of housing plate, the bow portion head is equipped with the comdenstion water intake chamber, the stern portion head is equipped with the comdenstion water play water cavity, the first end of each heat exchange tube is linked together with the comdenstion water intake chamber respectively, the second end of each heat exchange tube is linked together with the comdenstion water play water cavity respectively. The invention can make full use of outboard space, so that the arrangement position of the condenser on the ship body is more flexible, and the safety and the reliability of the heat exchange process of the system are improved.
Description
Technical Field
The invention relates to the technical field of ship outboard cooling, in particular to a steam power outboard cooling system for a ship.
Background
At present, an outboard condenser of a ship is generally arranged at a sea bottom door, outboard seawater enters the outboard condenser through a bottom inlet, and after the outboard seawater exchanges heat with a heat medium in the outboard condenser to be heated, the outboard seawater rises to a high outlet of a condenser box to escape due to density reduction, so that the arrangement position of the outboard condenser is limited. In addition, as the seawater needs to directly exchange heat with the outboard condenser, only one grid is arranged between the seawater and the outboard condenser, the outboard condenser is easily blocked by seawater pollutants, the heat exchange capability of the outboard condenser is reduced, and the overheating accident of cooled equipment in a cabin is easily caused. In addition, the heat exchange mode of the existing outboard condenser and seawater is natural convection, and the heat exchange efficiency is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides a steam power outboard cooling system for a ship, which can fully utilize outboard space, so that the arrangement of a condenser is more flexible, and the safety and the reliability are improved.
The steam power outboard cooling system for the ship comprises a steam turbine, a condenser and a conformal heat exchanger, wherein the steam turbine is connected with the condenser through a steam pipeline; the conformal heat exchanger comprises a heat exchanger shell, wherein a plurality of rows of heat exchange tubes are arranged in the heat exchanger shell, and a bow end socket and a stern end socket are correspondingly arranged at the left end and the right end of the heat exchanger shell; the heat exchanger shell comprises an outer shell plate arranged on the outer side wall of a ship body plate, and a seawater heat exchange cavity is formed by enclosing the outer shell plate and the ship body plate; the ship body plate is arc-shaped, the outer shell plate is arc-shaped and matched with the shape of the ship body plate, the heat exchange tubes are straight tubes which are parallel to each other, and each row of heat exchange tubes are arranged in an arc line matched with the shape of the outer shell plate; the bow end socket is provided with a condensed water inlet cavity, the stern end socket is provided with a condensed water outlet cavity, the first end of each heat exchange tube is respectively communicated with the condensed water inlet cavity, and the second end of each heat exchange tube is respectively communicated with the condensed water outlet cavity; the condensed water inlet cavity is communicated with the condenser through a water inlet pipeline, and the condensed water outlet cavity is communicated with the condenser through a water outlet pipeline.
According to one embodiment of the invention, the water inlet pipeline comprises a first water inlet pipeline connected with the side plate of the condenser and a second water inlet pipeline connected with the condensed water inlet cavity, and the first water inlet pipeline and the second water inlet pipeline are in sealed connection through a first flange.
According to one embodiment of the invention, the water outlet pipe comprises a first water outlet pipe connected with the bottom plate of the condenser and a second water outlet pipe connected with the condensed water inlet cavity, and the first water outlet pipe and the second water outlet pipe are connected in a sealing mode through a second flange.
According to an embodiment of the present invention, a plurality of first baffle plates parallel to each other and a plurality of second baffle plates parallel to each other are disposed inside the heat exchanger shell, the plurality of first baffle plates are sequentially arranged at intervals along the length extension direction of the heat exchange tube, the plurality of second baffle plates are sequentially arranged at intervals along the length extension direction of the heat exchange tube, and the first baffle plates and the second baffle plates are arranged in a staggered manner.
According to one embodiment of the invention, a ship outer shell is arranged on the periphery of the ship plate, the ship outer shell is an arc-shaped structure matched with the shape of the ship plate, a ship cavity is formed between the ship plate and the ship outer shell, and the conformal heat exchanger is arranged inside the ship cavity.
According to one embodiment of the invention, a seawater inlet is arranged at the position, close to the stern seal head, of the bottom of the outer shell plate, and the seawater inlet is provided with a seawater inlet grating; and a seawater outlet is arranged at the position, close to the bow head end socket, of the top of the outer shell plate, and a seawater outlet grid is arranged at the seawater outlet.
According to one embodiment of the invention, a jet device is arranged in the cavity of the ship at a position corresponding to the seawater outlet, and the jet device is connected with the steam pipeline through a steam exhaust pipeline.
According to one embodiment of the invention, the jet device comprises a nozzle, a suction inlet, a flow pipeline and a diffusion port, wherein the suction inlet and the diffusion port are respectively connected with two ends of the flow pipeline correspondingly, the suction inlet corresponds to the seawater outlet, an inlet of the nozzle is connected with the exhaust steam pipeline, and an outlet of the nozzle is positioned inside the suction inlet.
According to an embodiment of the invention, the suction inlet is a conical cylinder body which is gradually reduced from a first end to a second end, the first end of the suction inlet corresponds to the seawater outlet, and the second end of the suction inlet is connected with the circulating pipeline; the diffusion opening is a conical cylinder body which is gradually increased from the first end to the second end, and the first end of the diffusion opening is connected with the flow pipeline.
According to one embodiment of the invention, a seawater barrier is arranged above the diffusion opening, and the seawater barrier is arranged on the inner side wall of the ship outer shell.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the steam power outboard cooling system for the ship comprises a steam turbine, a condenser and a conformal heat exchanger, wherein the steam turbine is connected with the condenser through a steam pipeline; the heat exchanger shell comprises an outer shell plate arranged on the outer side wall of a ship body plate, so that a seawater heat exchange cavity is formed by enclosing the outer shell plate and the ship body plate, all heat exchange tubes are straight tubes which are parallel to each other, and all rows of heat exchange tubes are arranged in an arc line shape matched with the shape of the outer shell plate; respectively communicating the first end of each heat exchange tube with a condensed water inlet cavity of a bow end socket, respectively communicating the second end of each heat exchange tube with a condensed water outlet cavity of a stern end socket, respectively communicating the condensed water inlet cavities with a condenser through a water inlet pipeline, and communicating the condensed water outlet cavities with the condenser through a water outlet pipeline; when the device works, condensed water in the condenser enters a condensed water inlet cavity of the bow head through a water inlet pipeline, then enters each heat exchange pipe through the condensed water inlet cavity, is cooled after being subjected to heat exchange with outboard seawater, enters a condensed water outlet cavity of the stern head, and returns to the condenser through a water outlet pipeline for cooling exhaust steam discharged from a steam turbine; the outboard seawater flow enters a seawater heat exchange cavity of the conformal heat exchanger, is heated after exchanging heat with condensed water in the heat exchange tube, and is discharged from the seawater heat exchange cavity. Therefore, the steam power outboard cooling system for the ship in the embodiment of the invention can enable outboard seawater to flow at the shell side of the conformal heat exchanger through the conformal structure formed between the conformal heat exchanger and the ship body plate, enable condensed water in the condenser to flow at the tube side of the conformal heat exchanger, and further can utilize the outboard seawater to cool off exhaust steam exhausted by the steam turbine, thereby not only fully utilizing the outboard space and enabling the arrangement position of the condenser on the ship body to be more flexible, but also improving the safety and reliability of the heat exchange process of the system.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic block diagram of a steam powered outboard cooling system for a marine vessel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the configuration of a fluidic device in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a seawater inlet grille according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a seawater outlet grille in the embodiment of the invention.
Reference numerals:
1: a steam turbine; 2: a condenser;
3: a conformal heat exchanger; 31: a bow end enclosure; 32: a stern seal head; 33: a heat exchange pipe; 34: a hull plate; 35: an outer shell plate; 351: a seawater inlet; 352: a seawater inlet grille; 353: a seawater outlet; 354: a seawater outlet grille; 36: a seawater heat exchange cavity;
4: a steam line; 5: a water inlet pipe; 51: a first flange; 6: a water outlet pipeline; 61: a second flange; 7: a hull of the vessel; 8: an outboard cavity;
9: a fluidic device; 91: a nozzle; 92: a suction inlet; 93: a flow conduit; 94: a diffusion port;
101: a first baffle plate; 102: a second baffle plate; 11: a steam exhaust pipeline; 12: a dead steam control valve; 13: a seawater barrier.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1 to 4, an embodiment of the present invention provides a steam-powered outboard cooling system for a marine vessel, the direction of arrows in the drawings indicating the direction of flow of liquid. The steam power outboard cooling system for the ship comprises a steam turbine 1, a condenser 2 and a conformal heat exchanger 3, wherein the steam turbine 1 is connected with the condenser 2 through a steam pipeline 4. That is, the exhaust steam discharged from the steam turbine 1 is delivered to the condenser 2 through the steam pipe 4 for heat exchange with the cooling water in the condenser 2, thereby cooling the exhaust steam.
Wherein, conformal heat exchanger 3 includes the heat exchanger casing, both ends correspond and are equipped with bow head 31 and stern head 32 about the heat exchanger casing, are equipped with multirow heat exchange tube 33 in the inside of heat exchanger casing, and the heat exchanger casing is including setting up the shell plate 35 on the lateral wall of hull plate 34, encloses between shell plate 35 and the hull plate 34 and closes and form sea water heat transfer chamber 36, promptly, adopt partly interior shell plate as conformal heat exchanger 3 of hull plate 34 to mutually support with shell plate 35 and form conformal structure.
Wherein, hull board 34 is the arc, and outer shell plate 35 is the arc with the shape looks adaptation of hull board 34, and each heat exchange tube 33 is the straight tube that is parallel to each other, and every row of heat exchange tube 33 all is the arc arrangement setting with the shape looks adaptation of outer shell plate 35.
Wherein, the bow head 31 is provided with a condensed water inlet cavity, the stern head 32 is provided with a condensed water outlet cavity, the first end of each heat exchange tube 33 is respectively communicated with the condensed water inlet cavity, and the second end of each heat exchange tube 33 is respectively communicated with the condensed water outlet cavity. The condensed water inlet cavity is communicated with the condenser 2 through an inlet pipe 5, and the condensed water outlet cavity is communicated with the condenser 2 through an outlet pipe 6.
When the steam turbine works, condensed water in the condenser 2 enters a condensed water inlet cavity of the bow end socket 31 through the water inlet pipeline 5, then enters each heat exchange pipe 33 through the condensed water inlet cavity, is cooled after exchanging heat with outboard seawater, then enters a condensed water outlet cavity of the stern end socket 32, and returns to the condenser 2 through the water outlet pipeline 6, so that exhaust steam discharged from the steam turbine 1 is cooled. Meanwhile, the outboard seawater flow enters the seawater heat exchange cavity 36 of the conformal heat exchanger 3, is heated after exchanging heat with the condensed water in the heat exchange pipe 33, and is then discharged from the seawater heat exchange cavity 36.
Therefore, according to the steam power outboard cooling system for the ship, provided by the embodiment of the invention, the conformal structure is formed between the conformal heat exchanger 3 and the ship body plate 34, so that outboard seawater can flow on the shell side of the conformal heat exchanger 3, condensed water in the condenser 2 can flow on the tube side of the conformal heat exchanger 3, and further, dead steam exhausted by the steam turbine 1 can be cooled by using the outboard seawater, so that not only is the outboard space fully utilized, but also the arrangement position of the condenser 2 on the ship body is more flexible, and the safety and the reliability of the heat exchange process of the system are improved.
In some embodiments of the present invention, the inlet conduit 5 comprises a first inlet conduit connected to a side plate of the condenser 2 and a second inlet conduit connected to a condensate inlet chamber, the first inlet conduit and the second inlet conduit being sealingly connected by a first flange 51, thereby facilitating a removable sealing connection between the condenser 2 and the condensate inlet chamber.
In some embodiments of the present invention, the outlet conduit 6 comprises a first outlet conduit connected to the bottom plate of the condenser 2 and a second outlet conduit connected to the condensate inlet chamber, the first outlet conduit and the second outlet conduit being sealingly connected by a second flange 61, thereby facilitating a detachable sealing connection between the condenser 2 and the condensate inlet chamber.
In some embodiments of the present invention, a plurality of first baffle plates 101 parallel to each other and a plurality of second baffle plates 102 parallel to each other are disposed inside the heat exchanger shell, the plurality of first baffle plates 101 are sequentially arranged at intervals along the length extension direction of the heat exchange tube 33, the plurality of second baffle plates 102 are sequentially arranged at intervals along the length extension direction of the heat exchange tube 33, and the first baffle plates 101 and the second baffle plates 102 are arranged in a staggered manner. By providing the first baffle plate 101 and the second baffle plate 102 in a staggered arrangement, the flow of the outboard seawater inside the seawater heat exchange chamber 36 is facilitated to be guided.
In some embodiments of the present invention, the ship outer shell 7 is disposed on the periphery of the ship plate 34, and the ship outer shell 7 has an arc structure adapted to the shape of the ship plate 34, so that a ship cavity 8 is formed between the ship plate 34 and the ship outer shell 7, wherein the conformal heat exchanger 3 is disposed inside the ship cavity 8. That is, the conformal heat exchanger 3 is arranged in the outboard cavity 8 between the ship body plate 34 and the ship outer shell 7, so that the conformal heat exchanger 3 can be effectively protected, and the safety and the reliability of the system heat exchange process are further improved.
In some embodiments of the present invention, a seawater inlet 351 is provided at the bottom of the skin plate 35 near the stern end cap 32, the seawater inlet 351 being provided with a seawater inlet grille 352, the seawater inlet grille 352 having an inclination to introduce outboard seawater into the seawater heat exchange chamber 36. A seawater outlet 353 is provided at the top of the outer shell plate 35 near the bow head 31, the seawater outlet 353 being provided with a seawater outlet grill 354, the seawater outlet grill 354 having an inclination to direct the outboard seawater out of the seawater heat exchange chamber 36. That is, the outboard seawater flow enters the seawater heat exchange chamber 36 of the conformal heat exchanger 3 through the seawater inlet 351, is heated after heat exchange with the cooling water in the heat exchange tube 33, and then exits the seawater heat exchange chamber 36 through the seawater outlet 353. By arranging the seawater inlet grille 352 and the seawater outlet grille 354, the conformal heat exchanger 3 can be protected, and pollutants are effectively prevented from entering the seawater heat exchange cavity 36, so that the seawater heat exchange cavity 36 is prevented from being blocked by the pollutants, and the safety and the reliability of the system are further improved.
Since the seawater inlet 351 is arranged at the bottom of the shell plate 35 and the seawater outlet 353 is arranged at the top of the shell plate 35, the flow path of the outboard seawater in the seawater heat exchange cavity 36 is in a low-in-high form.
In some embodiments of the invention, a jet device 9 is provided inside the outboard cavity 8 at a location corresponding to the seawater outlet 353, the jet device 9 being connected to the steam pipe 1 through a steam exhaust pipe 11. Wherein, the exhaust steam pipeline 11 is provided with an exhaust steam control valve 12 for controlling the circulation state of the exhaust steam in the exhaust steam pipeline 11. This fluidic device 9 utilizes the exhaust steam of steam turbine 1 exhaust as working fluid, and the sea water that flows 353 out the sea water outlet of conformal heat exchanger 3 inhales the back and then sprays the discharge to rational utilization steam turbine 1 exhaust steam has realized the forced convection heat transfer between conformal heat exchanger 3 and the outboard sea water, and then has improved the heat exchange efficiency of system.
Specifically, the jet device 9 includes a nozzle 91, a suction port 92, a flow pipe 93 and a diffusion port 94, wherein the suction port 92 and the diffusion port 94 are respectively connected to two ends of the flow pipe 93, the suction port 92 corresponds to a seawater outlet 353 of the seawater heat exchange chamber 36, an inlet of the nozzle 91 is connected to the exhaust steam pipe 11, and an outlet of the nozzle 91 is located inside the suction port 92. That is, the working fluid of the jet device 9 is the exhaust steam from the steam pipe 4, the sucked fluid is the heated outboard seawater flowing out from the seawater outlet 353 of the seawater heat exchange chamber 36, the temperature of the exhaust steam from the steam pipe 4 is about 50 ℃, the volume of the exhaust steam is rapidly reduced after being condensed into liquid water, so that a negative pressure region is formed at the outlet of the nozzle 91, the outboard seawater flowing out from the seawater outlet 353 is introduced into the suction inlet 92, and then under the action of turbulent diffusion, the outboard seawater introduced from the suction inlet 92 is mixed with the exhaust steam jetted out from the nozzle 91 and is jetted out of the jet device 9 through the diffusion port 94, so that the water outlet speed of the seawater outlet 353 of the seawater heat exchange chamber 36 is increased, the flow speed of the outboard seawater through the seawater heat exchange chamber 36 is increased, and the forced convection heat exchange between the conformal heat exchanger 3 and the outboard seawater is realized. At the same time, the outboard seawater flowing out of the fluidic device 9 is also heated to some extent, increasing the velocity of the outboard seawater upward flow due to the reduction in density.
Specifically, the suction port 92 is a conical cylinder which is gradually reduced from a first end to a second end, wherein the first end of the suction port 92 corresponds to the seawater outlet 353, and the second end of the suction port 92 is connected to the circulation pipe 93. That is, this configuration of the suction port 92 facilitates the introduction of the outboard seawater from the seawater outlet into the interior of the suction port 92.
Specifically, the diffusion opening 94 is a conical cylinder that increases from a first end to a second end, the first end of the diffusion opening 94 is connected to the flow conduit 93, and the second end of the diffusion opening 94 is disposed upward. That is, this configuration of the diffusion port 94 facilitates the discharge of the mixed flow of the outboard seawater and the exhaust steam ejected from the nozzle 91.
Specifically, the jet device 9 is mounted on the inner side wall of the ship outer shell 7 through a mounting bracket, so that the jet device 9 is mounted and fixed inside the outboard cavity 8.
In some embodiments of the invention, a seawater barrier 13 is also provided above the diffuser 94, the seawater barrier 13 being mounted on the inner side wall of the outer hull 7 of the vessel to facilitate the eventual discharge of the outboard seawater ejected from the jet device 9 to the sea.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (7)
1. A steam powered outboard cooling system for a marine vessel, characterized by: the device comprises a steam turbine, a condenser and a conformal heat exchanger, wherein the steam turbine is connected with the condenser through a steam pipeline; the conformal heat exchanger comprises a heat exchanger shell, wherein a plurality of rows of heat exchange tubes are arranged in the heat exchanger shell, and a bow end socket and a stern end socket are correspondingly arranged at the left end and the right end of the heat exchanger shell; the heat exchanger shell comprises outer shell plates arranged on the outer side walls of a ship body plate, and a seawater heat exchange cavity is formed by the outer shell plates and the ship body plate in an enclosing manner; the ship body plate is arc-shaped, the outer shell plate is arc-shaped and matched with the shape of the ship body plate, the heat exchange tubes are straight tubes which are parallel to each other, and each row of heat exchange tubes are arranged in an arc line matched with the shape of the outer shell plate; the bow end socket is provided with a condensed water inlet cavity, the stern end socket is provided with a condensed water outlet cavity, the first end of each heat exchange tube is respectively communicated with the condensed water inlet cavity, and the second end of each heat exchange tube is respectively communicated with the condensed water outlet cavity; the condensed water inlet cavity is communicated with the condenser through a water inlet pipeline, and the condensed water outlet cavity is communicated with the condenser through a water outlet pipeline;
a ship outer shell is arranged on the periphery of the ship plate, the ship outer shell is of an arc-shaped structure matched with the shape of the ship plate, a ship cavity is formed between the ship plate and the ship outer shell, and the conformal heat exchanger is arranged in the ship cavity;
a seawater outlet is formed in the position, close to the bow end socket, of the top of the outer shell plate;
a jet device is arranged in the position, corresponding to the seawater outlet, in the ship cavity, and the jet device is connected with the steam pipeline through a dead steam pipeline;
the jet device comprises a nozzle, a suction inlet, a circulation pipeline and a diffusion port, wherein the suction inlet and the diffusion port are correspondingly connected with two ends of the circulation pipeline respectively, the suction inlet corresponds to the seawater outlet, an inlet of the nozzle is connected with the exhaust steam pipeline, and an outlet of the nozzle is positioned inside the suction inlet.
2. The steam powered outboard cooling system for a marine vessel of claim 1, wherein: the water inlet pipeline comprises a first water inlet pipeline connected with a side plate of the condenser and a second water inlet pipeline connected with the condensed water inlet cavity, and the first water inlet pipeline is connected with the second water inlet pipeline in a sealing mode through a first flange.
3. The steam powered outboard cooling system for a marine vessel of claim 1, wherein: the water outlet pipeline comprises a first water outlet pipeline connected with the bottom plate of the condenser and a second water outlet pipeline connected with the condensed water inlet cavity, and the first water outlet pipeline is connected with the second water outlet pipeline in a sealing mode through a second flange.
4. The steam powered outboard cooling system for a marine vessel of claim 1, wherein: the heat exchanger comprises a heat exchanger shell, and is characterized in that a plurality of first baffle plates parallel to each other and a plurality of second baffle plates parallel to each other are arranged in the heat exchanger shell, the first baffle plates are sequentially arranged at intervals along the length extension direction of the heat exchange tube, the second baffle plates are sequentially arranged at intervals along the length extension direction of the heat exchange tube, and the first baffle plates and the second baffle plates are arranged in a staggered manner.
5. The steam powered outboard cooling system for a marine vessel of claim 1, wherein: a seawater inlet is formed in the position, close to the stern seal head, of the bottom of the outer shell plate, and a seawater inlet grating is arranged at the seawater inlet; the seawater outlet is provided with a seawater outlet grid.
6. The steam powered outboard cooling system for a marine vessel of claim 1, wherein: the suction inlet is a conical cylinder body which is gradually reduced from a first end to a second end, the first end of the suction inlet corresponds to the seawater outlet, and the second end of the suction inlet is connected with the circulating pipeline; the diffusion opening is a conical cylinder body which is gradually increased from the first end to the second end, and the first end of the diffusion opening is connected with the flow pipeline.
7. The steam powered outboard cooling system for a marine vessel of claim 6, wherein: and a seawater barrier is arranged above the diffusion port and is arranged on the inner side wall of the ship shell.
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| CN202011174216.1A CN112339961B (en) | 2020-10-28 | 2020-10-28 | Steam-powered outboard cooling system for a marine vessel |
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| CN202011174216.1A CN112339961B (en) | 2020-10-28 | 2020-10-28 | Steam-powered outboard cooling system for a marine vessel |
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