CN114212233A - Inter-board cooler and ship centralized cooling system - Google Patents
Inter-board cooler and ship centralized cooling system Download PDFInfo
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- CN114212233A CN114212233A CN202111269979.9A CN202111269979A CN114212233A CN 114212233 A CN114212233 A CN 114212233A CN 202111269979 A CN202111269979 A CN 202111269979A CN 114212233 A CN114212233 A CN 114212233A
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- 238000001816 cooling Methods 0.000 title claims abstract description 34
- 239000012809 cooling fluid Substances 0.000 claims abstract description 45
- 239000000725 suspension Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000011148 porous material Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 239000013535 sea water Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009304 pastoral farming Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/12—Heating; Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides an inter-board cooler and a ship centralized cooling system, wherein the inter-board cooler comprises an inter-board cooler shell, a tube bundle and a plurality of turbulence grids; the tube bundle is arranged in the shell, and a shell pass flow passage is formed between the tube bundle and the shell; the plurality of turbulence grids are arranged in the shell and are respectively connected with the tube bundle; the turbulence grids are sequentially arranged at intervals in a staggered manner along the length direction of the inter-board cooler, so that a supporting area in a shell pass flow channel is sequentially and alternately communicated with a flow channel area corresponding to a suspension area, and a snake-shaped flow channel is formed; the turbulence grids are used for guiding the cooling fluid in the shell pass flow channels to flow to the suspension area from the supporting area, and the cooling fluid passes through the inter-board cooler along the length direction. The invention can avoid the larger resistance generated by the whole baffling of the cooling fluid outside the tube, and can effectively strengthen the heat exchange effect by means of the jet flow passing through the turbulence grid and the transverse fluid flowing from the support area to the suspension area.
Description
Technical Field
The invention relates to the technical field of ship cooling, in particular to an inter-board cooler and a ship centralized cooling system.
Background
The heat exchanger is an energy-saving device for realizing heat transfer between materials between two or more than two fluids with different temperatures, so that the fluid with higher temperature transfers heat to the fluid with lower temperature, and the temperature of the fluid reaches the index specified by the process to meet the requirements of process conditions. According to practical application scenes, the heat exchanger can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like.
Currently, coolers are widely used in ships. In order to reduce the sea opening, the existing large ships generally adopt a centralized cooling technology, and the indirect cooling of the related equipment by seawater is realized by a centralized cooler. In order to avoid excessive occupation of a limited cabin space on a ship, a concept of an inter-board cooler is proposed in the related art, wherein the inter-board cooler is formed by arranging the cooler between boards on two sides of the ship so as to achieve the purposes of fully utilizing the board side space, releasing the cabin volume and improving the cabin utilization rate.
However, the existing inter-board cooler has an unreasonable internal structure design, and generally has the problems of large flow resistance of cooling water and poor heat exchange capacity when in use, so that the cooling requirements of relevant equipment on a ship are difficult to meet.
Disclosure of Invention
The invention provides an inter-board cooler and a ship centralized cooling system, which are used for solving or improving the problems of large flow resistance of cooling water and poor heat exchange capability of the conventional inter-board cooler.
The invention provides an inter-board cooler, comprising: the device comprises a shell, a tube bundle and a plurality of turbulence grids; the tube bundle is arranged in the shell, and a shell pass flow passage is formed between the tube bundle and the shell; the turbulence grids are arranged in the shell and are respectively connected with the tube bundles; in the width direction of the tube bundle, each turbulence grid is connected with part of the heat exchange tubes of the tube bundle, the area where the turbulence grids are connected with the tube bundle is formed as a support area, and the area where the turbulence grids are separated from the tube bundle is formed as a suspension area; the plurality of turbulence grids are sequentially arranged at intervals in a staggered manner along the length direction of the inter-board cooler, so that the supporting areas in the shell pass flow channels are sequentially and alternately communicated with the flow channel areas corresponding to the suspension areas, and a snake-shaped flow channel is formed; the flow disturbance grids are used for guiding cooling fluid in the shell pass flow channels to flow to the suspended area from the supporting area and enabling the cooling fluid to penetrate through the inter-board cooler along the length direction.
According to the inter-board cooler provided by the invention, the turbulent flow grid comprises a grid framework, and a plurality of grid holes are formed in the grid framework; a plurality of heat exchange tubes corresponding to the tube bundle penetrate through the grid holes in a one-to-one correspondence manner; and a pore is formed between the grid hole and the outer side wall of the heat exchange tube.
According to the inter-board cooler provided by the invention, the apertures corresponding to the grid holes are gradually increased along the extending direction from the support area to the suspension area.
According to the inter-board cooler provided by the invention, the grid holes are internally provided with the supporting parts; one end of the supporting part is connected with the hole wall of the grid hole, and the other end of the supporting part is connected with the outer side wall of the heat exchange tube; the cross-sectional area of the support parts corresponding to the grid holes on the plane perpendicular to the length direction is gradually reduced along the extension direction from the support area to the suspension area.
According to the inter-board cooler provided by the invention, the turbulence grids extend along the width direction of the inter-board cooler; one end of the turbulence grid is connected with one end of the tube bundle along the width direction; the length of the turbulence grid extending along the width direction is greater than one-half of the length of the tube bundle along the width direction and less than the length of the tube bundle along the width direction; and/or a plurality of supporting parts are arranged in the grid hole and are sequentially arranged along the circumferential direction of the grid hole.
According to the inter-board cooler provided by the invention, the shell extends along the length direction of the inter-board cooler, and the axial direction of the tube bundle is the same as the length direction of the inter-board cooler; the shell wall of the shell is provided with a water inlet and a water outlet which are respectively communicated with the shell pass flow channel; the water inlet is located the casing is close to the one end of tube bank, the delivery port is located the casing is close to the other end of tube bank.
According to the present invention, there is provided an inter-board cooler, further comprising: a water trap device; the water trap device comprises a water trap plate; one end of the water trap plate is rotatably connected with the water inlet, so that the inclination angle of the water trap plate relative to the length direction of the inter-board cooler can be adjusted; the surface of the water trap plate faces the incoming flow direction of the cooling fluid entering the water inlet so as to guide the cooling fluid to flow into the water inlet.
The invention also provides a ship centralized cooling system, which comprises equipment to be cooled, wherein the equipment to be cooled is arranged in the ship body of the ship; the system also comprises a self-flow generator and the inter-board cooler as described in any one of the above items; the free-flow generator and the inter-board cooler are used for being mounted between boards on at least one side of the ship body; the free-flow generator is communicated with a water inlet of the inter-board cooler through a flow inlet channel; and the two ends of the tube bundle are connected with the water cooling structure in the equipment to be cooled through pipelines to form a closed loop.
The invention also provides a ship centralized cooling system, which comprises equipment to be cooled, wherein the equipment to be cooled is arranged in the ship body of the ship; further comprising an inter-board cooler as described above; the inter-board cooler is used for being mounted between boards on at least one side of the ship body; the water inlet is positioned on one side of the inter-board cooler, which is far away from the ship body; and the two ends of the tube bundle are connected with the water cooling structure in the equipment to be cooled through pipelines to form a closed loop.
The invention provides an inter-board cooler and a ship centralized cooling system, wherein a plurality of turbulence grids connected with a tube bundle are arranged in a shell, and are sequentially arranged at intervals and in a staggered manner along the length direction of the inter-board cooler, so that cooling fluid in a shell pass flow channel flows through the tube bundle along a snakelike flow channel while flowing along the length direction of the inter-board cooler, and repeated baffling along the width direction of the inter-board cooler is formed, the flow form of the cooling fluid relative to the tube bundle is between two forms of the tube bundle and a transverse grazing tube bundle, the large resistance generated by total baffling of the cooling fluid outside the tube can be avoided, and the heat exchange effect can be effectively strengthened by means of jet flow passing through the turbulence grids and the transverse grazing fluid flowing from a supporting area to a suspension area.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic top view of an inter-board cooler provided by the present invention;
FIG. 2 is a schematic cross-sectional view of an inter-board cooler provided by the present invention;
FIG. 3 is a cross-sectional view of a row of grid holes in a turbulator grid in accordance with the present invention;
FIG. 4 is a second schematic cross-sectional view of a row of grid holes and tube bundles connected in a spoiler grid according to the present invention;
FIG. 5 is one of the schematic structural views of the arrangement of the concentrated cooling system of a ship provided by the present invention on the hull of the ship;
FIG. 6 is a second schematic structural view of the arrangement of the concentrated cooling system of the ship on the hull of the ship provided by the invention;
reference numerals:
1: a housing; 2: a tube bundle; 3: a spoiler grid;
31: a grid framework; 32: a grid hole; 33: a support portion;
11: a support region; 12: a suspended area; 100: an inter-board cooler;
200: a hull; 300: an auto-flow generator; 400: an inflow channel;
500: an outflow channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An intercooler and a concentrated cooling system for a ship according to the present invention will be described with reference to fig. 1 to 6.
As shown in fig. 1 and 2, the present embodiment provides an inter-board cooler 100, which includes a shell 1, a tube bundle 2 and a plurality of turbulence grids 3; the tube bundle 2 is arranged in the shell 1, and a shell pass flow channel is formed between the tube bundle 2 and the shell 1; the respective heat exchange tubes of the tube bundle 2 form tube pass flow channels.
Here, the casing 1 shown in the present embodiment extends along the longitudinal direction of the inter-board cooler 100, and the casing 1 may be specifically cylindrical or cubic; the axial direction of the tube bundle 2 is the same as the longitudinal direction of the inter-board cooler 100; the shell wall of the shell 1 is provided with a water inlet and a water outlet which are respectively communicated with the shell pass flow channel; the water inlet is located at one end of the shell 1 close to the tube bundle 2, and the water outlet is located at the other end of the shell 1 close to the tube bundle 2.
In order to facilitate cooling of the inter-board cooler 100 to the cooling equipment, and realize the inter-board cooler 100 and the connection between the cooling equipment, the present embodiment connects the orifice plate at one end of the tube bundle 2 with the inlet end enclosure, and connects the orifice plate at the other end of the tube bundle 2 with the outlet end enclosure, so that the inlet end enclosure and the outlet end enclosure are connected with the heat exchange structure of the cooling equipment through the pipeline.
As shown in fig. 1 and 2, a plurality of turbulence grids 3 shown in the present embodiment are disposed in the shell 1 and respectively connected to the tube bundle 2; in the width direction of the tube bundle 2, each turbulence grid 3 is connected with part of the heat exchange tubes of the tube bundle 2, the area where the turbulence grid 3 is connected with the tube bundle 2 is formed as a support area 11, and the area where the turbulence grid 3 is separated from the tube bundle 2 is formed as a suspended area 12; the plurality of turbulence grids 3 are sequentially arranged at intervals and in a staggered manner along the length direction of the inter-board cooler 100, so that the support areas 11 in the shell pass flow channels are sequentially and alternately communicated with the flow channel areas corresponding to the suspended areas 12, and form snake-shaped flow channels; the flow disturbance grids 3 are used for guiding the cooling fluid in the shell-side flow channels to flow from the support area 11 to the suspended area 12, and the cooling fluid passes through the inter-board cooler 100 along the length direction. Wherein the arrows in fig. 1 illustrate the flow direction of the cooling fluid along the serpentine flow channel. Obviously, the cooling fluid shown in the present embodiment may be divided into two portions, and the flow rate of the cooling fluid flowing along the serpentine flow channels is greater in one portion than in the other portion passing through the spoiler grid 3.
Specifically, in the present embodiment, a plurality of turbulence grids 3 connected to the tube bundle 2 are disposed in the shell 1, and the plurality of turbulence grids 3 are sequentially spaced and staggered along the length direction of the inter-board cooler 100, so that the cooling fluid in the shell-side flow channel flows through the tube bundle 2 along the serpentine flow channel while flowing along the length direction of the inter-board cooler 100, and a baffling is formed that repeatedly flows along the width direction of the inter-board cooler 100, so that the flow form of the cooling fluid relative to the tube bundle 2 is between two forms of flowing along the tube bundle 2 and sweeping the tube bundle 2. Therefore, the invention can not only avoid the larger resistance generated by the whole baffling of the cooling fluid outside the tube, but also effectively strengthen the heat exchange effect by means of the jet flow passing through the turbulence grid 3 and the transverse fluid flowing from the support area 11 to the suspended area 12.
It should be noted that the spoiler grid 3 shown in the present embodiment includes a grid framework 31, a plurality of grid holes 32 are provided on the grid framework 31, and the plurality of grid holes 32 are specifically arranged in an array; the plurality of heat exchange tubes corresponding to the tube bundle 2 pass through the plurality of grid holes 32 in a one-to-one correspondence; a pore is formed between the grid hole 32 and the outer side wall of the heat exchange pipe.
Because the cooling fluid introduced into the shell pass flow channel has a certain pressure, when the cooling fluid acts on the first side surface of the turbulence grid 3, part of the cooling fluid passes through the holes, and jet flow is formed on the second side surface of the turbulence grid 3, and the part of the jet flow can scour the heat exchange tubes of the tube bundle 2, so that local heat exchange enhancement is realized. Correspondingly, the part of the cooling fluid which does not penetrate through the hole completely and transversely sweeps to the suspended space 12 under the guidance of the turbulence grid 3, and the heat exchange tube in the flow channel area of the suspended space 12 is locally subjected to enhanced heat exchange. Thus, based on the design structure of the spoiler grid 3 and the arrangement form of the spoiler grids 3, the cooling fluid in the shell-side flow channel is baffled by repeatedly flowing along the width direction of the inter-board cooler 100 in the shell-side flow channel along the sequence of the support area 11, the suspension area 12, … and the support area 11, so that not only dead zones can be avoided, but also the cooling effect on the tube bundle 2 is ensured.
It should be noted here that the cooling fluid shown in the present embodiment depends on the navigation scenario of the ship, for example, when the ship is navigating in the ocean, the cooling fluid is seawater. Since the inter-board cooler 100 is used to cool the equipment to be cooled on the ship, the fluid flowing in the tube-side flow passage is usually high-temperature fresh water.
In addition, the present embodiment may achieve the purpose of guiding the cooling fluid in the shell-side flow channel to flow from the support region 11 to the suspended region 12 based on the arrangement of the shape or arrangement form of the spoiler grid 3. For example: in this embodiment, an included angle between the spoiler grid 3 and the length direction of the inter-board cooler 100 may be an acute angle, so that when the cooling fluid flows along the serpentine channel, the cooling fluid automatically flows from the support area 11 to the suspended area 12 under the flow guidance of the spoiler grid 3.
In one embodiment, the apertures corresponding to the plurality of grid holes 32 may be arranged to gradually increase along the extending direction from the support region 11 to the suspended region 12, so that the resistance of the cooling fluid penetrating through the apertures corresponding to each grid hole 32 is gradually reduced in the extending direction from the support region 11 to the suspended region 12, thereby enabling the cooling fluid not penetrating through the apertures to automatically flow from the support region 11 to the suspended region 12 while ensuring the uniformity of the flow rate of the cooling fluid penetrating through each aperture based on the flow characteristics of the fluid.
As shown in fig. 3 and 4, in order to realize the selective arrangement of the sizes of the apertures shown in the above embodiments while realizing the connection of the tube bundle 2 and the spoiler grid 3, the present embodiment is provided with a support portion 33 in the grid hole 32; one end of the supporting part 33 is connected with the hole wall of the grid hole 32, and the other end is connected with the outer side wall of the heat exchange tube; the cross-sectional area of the support portion 33 corresponding to the plurality of grid holes 32 on the plane perpendicular to the longitudinal direction is gradually reduced along the extending direction from the support region 11 to the suspended region 12. Here, the arrows passing through the gaps in fig. 3 and 4 are used to illustrate the flowing direction and the flowing state of the cooling fluid penetrating through the pores to form jets, and the arrows from left to right in fig. 4 indicate the direction of the fluid flowing from the support region 11 to the suspended region 12.
The cross-sectional shape of the supporting portion 33 shown in this embodiment on the plane perpendicular to the length direction may be an arc shape, the arc surface of the supporting portion 33 contacts with the outer sidewall of the heat exchange tube, and the bottom surface of the supporting portion 33 and the hole wall of the grid hole 32 may be detachably connected, or may be an integrated connection structure.
Further, in order to achieve repeated baffle of the cooling fluid in the width direction of the inter-board cooler 100 and further ensure compactness of the overall structure of the inter-board cooler 100, the present embodiment provides the spoiler grid 3 extending in the width direction of the inter-board cooler 100; one end of the turbulence grid 3 is connected with one end of the tube bundle 2 along the width direction; the length of the turbulence grid 3 extending along the width direction is greater than one half of the length of the tube bundle 2 along the width direction and less than the length of the tube bundle 2 along the width direction; in this embodiment, the length of the spoiler grid 3 extending in the width direction may be 1/2 to 2/3 of the length of the tube bundle 2 in the width direction, and the width direction of the tube bundle 2 shown in this embodiment is the same as the width direction of the inter-board cooler 100.
Meanwhile, in order to ensure that each heat exchange tube of the tube bundle 2 is reliably installed in the grid hole 32 and to ensure that the jet flow formed through the pores achieves intensive cooling of the heat exchange tube, the present embodiment is provided with a plurality of support portions 33 in the grid hole 32, the plurality of support portions 33 being arranged in sequence in the circumferential direction of the grid hole 32.
As shown in fig. 3, the grid holes 32 shown in the present embodiment are square holes, four support portions 33 shown in the present embodiment are provided, and four support portions 33 are provided on four hole walls of the square holes in a one-to-one correspondence.
Preferably, in order to facilitate guiding the cooling fluid seawater to automatically flow into the water inlet during the ship sailing process and realize the integrated design of the inter-board cooler 100 and the on-board artesian generator 300, the inter-board cooler 100 shown in the embodiment is further provided with a water-scooping device; the water trap device comprises a water trap plate; one end of the water trap plate is rotatably connected to the water inlet such that an inclination angle of the water trap plate with respect to a length direction of the inter-board cooler 100 is adjustable; the surface of the water trap plate is used for facing the incoming flow direction of the cooling fluid introduced into the water inlet so as to guide the cooling fluid to flow into the water inlet.
Specifically, the water trap device shown in this embodiment may further include an angle adjustment mechanism, one end of which is connected to the housing 1 of the inter-board cooler 100 and the other end of which is connected to the water trap plate, so as to adjust and control the inclination angle of the water trap plate with respect to the longitudinal direction of the inter-board cooler 100 based on the angle adjustment mechanism. The angle adjusting mechanism can be a telescopic driving mechanism.
Here, in this embodiment, based on the adjustment of the inclination angle of the water trap plate, the pressure and the flow rate of the cooling fluid introduced into the water inlet can be effectively controlled, and the cooling fluid can be driven to automatically flow along the shell-side flow channel by the dynamic pressure of the ship during navigation without a water pump, so as to cool the fluid in the tube-side flow channel.
It should be noted that, in order to facilitate control of the discharge flow rate of the cooling fluid after heat exchange at the water outlet, a bleed plate may be further disposed at the water outlet, and the inclination angle of the bleed plate with respect to the length direction of the inter-board cooler 100 may be adjusted.
As shown in fig. 5 and 6, the present embodiment also provides a centralized cooling system for a ship, which includes a device to be cooled installed in a hull 200 of the ship; further comprising a free-stream generator 300 and an inter-board cooler 100 as described above; the free-flow generator 300 and the inter-board cooler 100 are mounted between the boards on at least one side of the hull 200; the free-flow generator 300 is communicated with a water inlet of the inter-board cooler 100 through the inflow channel 400, a water outlet of the inter-board cooler 100 is communicated with one end of the outflow channel 500, and the other end of the outflow channel 500 is used for discharging cooling fluid after heat exchange; the two ends of the tube bundle 2 shown in the embodiment are connected with a water cooling structure in the equipment to be cooled through pipelines to form a closed loop.
As shown in fig. 5 and 6, the free-flow generator 300 according to the present embodiment automatically supplies the cooling fluid to the inter-board cooler 100 by the dynamic pressure conversion principle when the ship is underway, and the free-flow generator 300 and the inter-board cooler 100 are arranged in a one-to-one correspondence with each other in the forward and backward directions of the ship. In this embodiment, five inter-board coolers 100 are disposed between the left and right boards of the hull 200.
Specifically, when the ship sails in the ocean, seawater entering the shell pass flow channel through the inflow channel 400 is forced to overcome the flow resistance of the tube bundle 2 under the action of the turbulence grid 3 and flows from the outboard to the inboard direction of the ship, so that repeated baffling along the left and right directions of the side of the ship is realized, dead flowing areas can be effectively avoided, and efficient heat exchange of the tube bundle 2 is realized; meanwhile, as a part of seawater entering the shell-side flow channel passes through the holes on the turbulence grid 3, the large resistance generated by the baffling of the whole fluid is avoided, and sufficient seawater can be driven into the inter-board cooler 100 through the dynamic pressure conversion effect of the self-flow generator 300.
Since the centralized cooling system for a ship adopts the inter-board cooler 100 shown in the above embodiment, and the specific structure of the inter-board cooler 100 can refer to the above embodiment, the centralized cooling system for a ship includes all technical solutions of the above embodiment, and therefore, at least all beneficial effects brought by all technical solutions of the above embodiment are achieved, and no further description is provided herein.
Here, in order to further reduce the occupation of the limited space on the ship, the present embodiment also provides a concentrated cooling system for a ship, which eliminates the application of the free-stream generator 300 and employs the inter-board cooler 100 provided with the water scooping device shown in the above embodiment; the inter-board cooler 100 is installed between the boards on at least one side of the hull 200; the water inlet is located on the side of the inter-board cooler 100 facing away from the hull 200; the two ends of the tube bundle 2 are connected with a water cooling structure in the equipment to be cooled through pipelines to form a closed loop. Here, the arrangement of the concentrated cooling system of the ship on the hull 200 will not be described in detail.
As can be seen from the above, the inter-board cooler 100 shown in this embodiment has a strong heat exchange capability, and while satisfying the requirements of low resistance and compactness, effectively reduces the occupation of the space of the ship cabin, and improves the utilization rate of the cabin.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An inter-board cooler, comprising:
the device comprises a shell, a tube bundle and a plurality of turbulence grids;
the tube bundle is arranged in the shell, and a shell pass flow passage is formed between the tube bundle and the shell; the turbulence grids are arranged in the shell and are respectively connected with the tube bundles; in the width direction of the tube bundle, each turbulence grid is connected with part of the heat exchange tubes of the tube bundle, the area where the turbulence grids are connected with the tube bundle is formed as a support area, and the area where the turbulence grids are separated from the tube bundle is formed as a suspension area;
the plurality of turbulence grids are sequentially arranged at intervals in a staggered manner along the length direction of the inter-board cooler, so that the supporting areas in the shell pass flow channels are sequentially and alternately communicated with the flow channel areas corresponding to the suspension areas, and a snake-shaped flow channel is formed;
the flow disturbance grids are used for guiding cooling fluid in the shell pass flow channels to flow to the suspended area from the supporting area and enabling the cooling fluid to penetrate through the inter-board cooler along the length direction.
2. The inter-board cooler according to claim 1,
the turbulent flow grid comprises a grid framework, and a plurality of grid holes are formed in the grid framework; a plurality of heat exchange tubes corresponding to the tube bundle penetrate through the grid holes in a one-to-one correspondence manner; and a pore is formed between the grid hole and the outer side wall of the heat exchange tube.
3. The inter-board cooler according to claim 2,
the apertures corresponding to the grid holes are gradually increased along the extending direction from the support area to the suspension area.
4. The inter-board cooler according to claim 2,
a supporting part is arranged in the grid hole; one end of the supporting part is connected with the hole wall of the grid hole, and the other end of the supporting part is connected with the outer side wall of the heat exchange tube;
the cross-sectional area of the support parts corresponding to the grid holes on the plane perpendicular to the length direction is gradually reduced along the extension direction from the support area to the suspension area.
5. The inter-board cooler according to claim 4,
the turbulence grids extend along the width direction of the inter-board cooler; one end of the turbulence grid is connected with one end of the tube bundle along the width direction; the length of the turbulence grid extending along the width direction is greater than one-half of the length of the tube bundle along the width direction and less than the length of the tube bundle along the width direction;
and/or a plurality of supporting parts are arranged in the grid hole and are sequentially arranged along the circumferential direction of the grid hole.
6. The inter-board cooler according to any one of claims 1 to 5,
the shell extends along the length direction of the inter-board cooler, and the axial direction of the tube bundle is the same as the length direction of the inter-board cooler;
the shell wall of the shell is provided with a water inlet and a water outlet which are respectively communicated with the shell pass flow channel; the water inlet is located the casing is close to the one end of tube bank, the delivery port is located the casing is close to the other end of tube bank.
7. The inter-board cooler according to claim 6,
further comprising: a water trap device;
the water trap device comprises a water trap plate; one end of the water trap plate is rotatably connected with the water inlet, so that the inclination angle of the water trap plate relative to the length direction of the inter-board cooler can be adjusted;
the surface of the water trap plate faces the incoming flow direction of the cooling fluid entering the water inlet so as to guide the cooling fluid to flow into the water inlet.
8. A concentrated cooling system for a ship, which comprises equipment to be cooled installed in a ship body of the ship, and is characterized by further comprising: a free-stream generator and the intercooler as claimed in any one of claims 1 to 6; the free-flow generator and the inter-board cooler are used for being mounted between boards on at least one side of the ship body; the free-flow generator is communicated with a water inlet of the inter-board cooler through a flow inlet channel; and the two ends of the tube bundle are connected with the water cooling structure in the equipment to be cooled through pipelines to form a closed loop.
9. A concentrated cooling system for a ship, which comprises equipment to be cooled installed in a ship body of the ship, and is characterized by further comprising: the intercooling device of claim 7; the inter-board cooler is used for being mounted between boards on at least one side of the ship body; the water inlet is positioned on one side of the inter-board cooler, which is far away from the ship body; and the two ends of the tube bundle are connected with the water cooling structure in the equipment to be cooled through pipelines to form a closed loop.
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| CN202111269979.9A CN114212233A (en) | 2021-10-29 | 2021-10-29 | Inter-board cooler and ship centralized cooling system |
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| CN202111269979.9A CN114212233A (en) | 2021-10-29 | 2021-10-29 | Inter-board cooler and ship centralized cooling system |
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