US20160153719A1 - Heat exchange component - Google Patents
Heat exchange component Download PDFInfo
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- US20160153719A1 US20160153719A1 US14/947,428 US201514947428A US2016153719A1 US 20160153719 A1 US20160153719 A1 US 20160153719A1 US 201514947428 A US201514947428 A US 201514947428A US 2016153719 A1 US2016153719 A1 US 2016153719A1
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- Prior art keywords
- fluid
- passing portion
- heat exchange
- honeycomb structure
- covering member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
- F28F7/02—Blocks traversed by passages for heat-exchange media
-
- 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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
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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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
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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
- F28D7/02—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 helically coiled
- F28D7/022—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 helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
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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
- F28D7/10—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 one within the other, e.g. concentrically
- F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
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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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0089—Oil coolers
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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
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/10—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overheating, e.g. heat shields
Definitions
- the present invention relates to a heat exchange component to perform heat exchange between a plurality of fluids.
- Improvement of a fuel efficiency of a car is demanded, and for the purpose of preventing deterioration of the fuel efficiency when an engine is cold at, e.g., startup of the engine, a system is expected in which cooling water, engine oil, automatic transmission fluid (ATF) or the like is warmed in early stages to decrease friction losses.
- a system is expected in which the catalyst is heated.
- an oil temperature is raised in early stages. Consequently, for the purpose of setting the car engine or transmission oil at an optimum temperature, an oil warmer is used to perform heat exchange between the cooling water and the oil.
- the temperature of the cooling water is low immediately after the startup of the engine, and it takes much time to raise the temperature of the cooling water. As a result, even when the oil warmer is used, there is the problem that it takes much time until the temperature of the oil rises.
- Patent Document 1 there is described a heat exchanger constituted of a honeycomb structure (a first fluid passing portion) and a casing (a second fluid passing portion). According to this heat exchanger, it is possible to perform heat exchange between a high-temperature exhaust gas flowing through the first fluid passing portion and a low-temperature liquid flowing through the second fluid passing portion.
- Patent Document 1 WO 2011/071161 A1
- An object of the present invention is to provide a heat exchange component capable of controlling temperatures of fluids between which heat exchange is to be performed.
- a heat exchange component is provided as follows.
- a heat exchange component including a honeycomb structure having partition walls extending through the honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid, and including a ceramic material as a main component, a covering member made of a metal and fitted into a circumference of the honeycomb structure, a second fluid passing portion disposed to come in contact with a circumference of the covering member and forming a through channel of a second fluid, and a third fluid passing portion disposed in a circumference of the second fluid passing portion, containing the second fluid passing portion and forming a through channel through which a third fluid is passed to come in contact with the second fluid passing portion and the covering member.
- a heat exchange component has a through channel of a third fluid in addition to a through channel of a first fluid and a through channel of a second fluid to perform heat exchange, temperatures of the first fluid and the second fluid are controlled by the third fluid, and hence excessive temperature rise can be prevented.
- the heat exchange component includes a tubular passing portion disposed to come in contact with a circumference of a covering member which covers a honeycomb structure, and forming the through channel of the second fluid, and a circumferential passing portion containing the tubular passing portion, whereby the temperatures of the respective fluids are easy to be controlled.
- the heat exchange component of the present invention can be utilized even with a fluid (e.g., oil) having low heat transfer properties.
- FIG. 1A is a schematic view showing a heat exchange component of Embodiment 1 in an axial direction
- FIG. 1B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component of Embodiment 1;
- FIG. 2A is a schematic view showing a honeycomb structure
- FIG. 2B is a schematic view showing that the honeycomb structure and a covering member are integrated
- FIG. 2C is a schematic view showing a heat exchange member in which the honeycomb structure and the covering member are integrated;
- FIG. 3A is a cross-sectional view in the axial direction of Embodiment 1;
- FIG. 3B is a cross-sectional view showing an embodiment in which a sectional shape of a tubular passing portion is elliptic;
- FIG. 3C is a cross-sectional view showing an embodiment in which a sectional shape of a tubular passing portion is rectangular;
- FIG. 4A is a schematic view showing a heat exchange component of Embodiment 2 in an axial direction
- FIG. 4B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component of Embodiment 2;
- FIG. 5A is a schematic view showing a heat exchange component of Embodiment 3 in an axial direction
- FIG. 5B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component of Embodiment 3;
- FIG. 6 is a schematic view showing a heat exchange component of Embodiment 4 in an axial direction.
- FIG. 7 is a schematic view showing a heat exchange component of Comparative Example 1 in an axial direction.
- FIG. 1A and FIG. 1B show Embodiment 1 of a heat exchange component 30 .
- the heat exchange component 30 includes a honeycomb structure 1 having partition walls 4 extending through the honeycomb structure from a first end face 2 ( 2 a ) to a second end face 2 ( 2 b ) to define a plurality of cells 3 forming a through channel of a first fluid, and including a ceramic material as a main component, a covering member 11 made of a metal and fitted into a circumference of the honeycomb structure 1 , a tubular passing portion 32 disposed to come in contact with a circumference of the covering member 11 and forming a through channel of a second fluid, and a circumferential passing portion 33 disposed in a circumference of the tubular passing portion, containing the tubular passing portion 32 and forming a through channel through which a third fluid is passed to come in contact with the tubular passing portion 32 and the covering member 11 .
- the heat exchange component 30 includes a first fluid passing portion 25 of the honeycomb structure 1 which is the through channel of the first fluid, a second fluid passing portion 26 of the tubular passing portion 32 which is the through channel of the second fluid, and a third fluid passing portion 27 of the circumferential passing portion 33 which is the through channel of the third fluid.
- the fluids are passed through the through channels without being mixed with each other. That is, heat exchange between the fluids is mutually performed while separating the fluids.
- the heat exchange component 30 not only can perform the heat exchange between the first fluid and the second fluid but also includes the through channel of the third fluid on a circumferential side of the second fluid, and hence the heat exchange component has a function of enabling temperature control of the second fluid. For example, when the first fluid has a higher temperature than the second fluid and the third fluid has a lower temperature than the second fluid before the heat exchange, the temperature of the second fluid rises due to the heat exchange between the second fluid and the first fluid, but the temperature can be lowered by the heat exchange between the second fluid and the third fluid.
- the heat exchange component 30 has the through channel of the third fluid in addition to the through channel of the first fluid and the through channel of the second fluid to perform the heat exchange, so that the temperatures of the first fluid and the second fluid can be controlled by the third fluid, and excessive temperature rise can be prevented.
- the heat exchange component 30 is attached to a vehicle and an exhaust gas as the first fluid, oil as the second fluid and water as the third fluid are passed, heat from the exhaust gas is transferred to the oil in the tubular passing portion 32 via a contact portion between the circumference of the covering member 11 and the tubular passing portion 32 . That is, the heat is transferred from the exhaust gas to the oil, and hence the temperature of the oil can rapidly be raised.
- the water is passed as the third fluid, and hence even when the temperature of the exhaust gas heightens, an oil contact surface is not excessively heated, and deterioration of the oil can be prevented.
- the heat exchange component can be utilized as in (a) to (c) mentioned below.
- Flow rates of the cooling water and the oil are varied, and hence balance adjustment of an amount of the heat to be transferred can be achieved. Specifically, when the oil is to be preferentially heated, an amount of the cooling water is decreased to heighten the water temperature, a temperature difference between the cooling water and the oil is increased, and hence the amount of the heat to be transferred to the oil can be increased. In addition, when the oil temperature excessively rises, the amount of the cooling water is increased, and hence the oil temperature rise can be inhibited.
- inflow of each fluid is turned ON/OFF, and hence it is possible to only perform heat exchange between the through channels which the heat exchange is to be performed.
- the first fluid is a gas
- the second fluid is a liquid
- the third fluid is a liquid and the third fluid is only turned OFF (does not flow inside)
- the first fluid is only turned OFF (does not flow inside)
- the heat exchange component 30 is usable in the heat exchange between the two fluids by inhibiting one of the first fluid to the third fluid from flowing inside.
- the heat exchange component 30 may include a through channel other than the first fluid passing portion 25 , the second fluid passing portion 26 and the third fluid passing portion 27 as another fluid through channel, and may be used in heat exchange among four fluids or more.
- FIG. 2A shows a schematic view of the honeycomb structure 1 .
- the honeycomb structure 1 is made of a pillar-shaped ceramic material, and has fluid through channels extending through the honeycomb structure from the first end face 2 ( 2 a ) to the second end face 2 ( 2 b ) in an axial direction.
- the honeycomb structure 1 has the partition walls 4 , and a large number of cells 3 forming the fluid through channels are defined by the partition walls 4 .
- the honeycomb structure 1 has the partition walls 4 , and hence the heat from the fluid flowing through the honeycomb structure 1 can efficiently be collected and transferred to the outside.
- An outer shape of the honeycomb structure 1 is not limited to a round pillar shape, and a cross section of the honeycomb structure which is vertical to the axial (longitudinal) direction may be elliptic.
- the outer shape of the honeycomb structure 1 may be prismatic columnar, i.e., the cross section vertical to the axial (longitudinal) direction may be a quadrangular shape or other polygonal shape.
- the honeycomb structure 1 includes the ceramic material as the main component, and hence thermal conductivities of the partition walls 4 and a circumferential wall 7 heighten, and as a result, it is possible to efficiently perform the heat exchange in which the partition walls 4 and the circumferential wall 7 are interposed. It is to be noted that when it is described in the present description that the ceramic material is included as the main component, it is meant that 50 mass % or more of the ceramic material is included.
- the porosity of the honeycomb structure 1 is preferably 10% or less, more preferably 5% or less, and further preferably 3% or less. When the porosity is 10% or less, the thermal conductivity can improve.
- the honeycomb structure 1 preferably includes SiC (silicon carbide) having high heat transfer properties as the main component.
- SiC silicon carbide
- the main component is silicon carbide whose content ratio is 50 mass % or more of the honeycomb structure 1 .
- the material of the honeycomb structure 1 there can be employed Si-impregnated SiC, (Si+Al)-impregnated SiC, metal composite SiC, recrystallized SiC, Si 3 N 4 , SiC or the like.
- Si-impregnated SiC, (Si+Al)-impregnated SiC, metal composite SiC, recrystallized SiC, Si 3 N 4 , SiC or the like in the case of a porous body, a high thermal conductivity might not be obtained, and hence to obtain the high thermal conductivity, a dense structure (a porosity of 5% or less) is preferably employed, and Si-impregnated SiC or (Si+Al)-impregnated SiC is preferably employed.
- SiC has a high thermal conductivity and is easy to radiate heat, but SiC impregnated with Si exhibits a high thermal conductivity or heat resistance, is also densely formed and indicates a sufficient strength as a heat transfer member.
- the thermal conductivity is about 20 W/(m ⁇ K), but in the case of the dense body, the thermal conductivity can be about 150 W/(m ⁇ K).
- a value of a test piece cut out from the honeycomb structure 1 at room temperature is calculated by using a thermal diffusivity measured in an AC method, specific heat measured in a DSC (differential scanning calorimetry) method and a value of a density measured in an Archimedes method.
- a desirable shape may suitably be selected from a round shape, an elliptic shape, and polygonal shapes such as a triangular shape, a quadrangular shape and a hexagonal shape.
- a cell density i.e., the number of cells per unit sectional area of the honeycomb structure 1
- the cell density may suitably be designed in accordance with a purpose, and is preferably in a range of 25 to 2000 cells/square inch (4 to 320 cells/cm 2 ).
- the cell density is 25 cells/square inch or more, not only a strength of the partition walls 4 but also a strength of the honeycomb structure 1 itself and an effective GSA (geometric surface area) can sufficiently be obtained.
- GSA geometric surface area
- An isostatic strength of the honeycomb structure 1 is preferably 1 MPa or more and further preferably 5 MPa or more. When the honeycomb structure has such a strength, a durability can sufficiently be obtained.
- the isostatic strength is obtained by the following method.
- a urethane rubber sheet having a thickness of 0.5 mm is wound around the circumferential surface of the honeycomb structure 1 .
- a disc having a thickness of 20 mm and made of aluminum is disposed on each of both end faces of the honeycomb structure via a round urethane rubber sheet.
- the aluminum disc and the urethane rubber sheet each having the same radius as a radius of each end face of the honeycomb structure is used.
- a vinyl tape is wound along a circumference of the aluminum disc, to seal a space between the circumference of the aluminum disc and the urethane rubber sheet, thereby obtaining a testing sample.
- the prepared testing sample is put in a pressure container in which water is contained. Further, a pressure is raised at a rate of 0.3 to 3.0 MPa/minute to apply a predetermined hydrostatic pressure to the testing sample, and breakdown of the honeycomb structure and generation of cracks are confirmed. Presence/absence of the generation of the cracks is judged by confirming breakdown noise during a test and visually checking an appearance of the honeycomb structure after the test, and when any cracks are not generated, the hydrostatic pressure is further raised to evaluate the isostatic strength.
- a diameter of the honeycomb structure 1 is preferably 200 mm or less, and further preferably 100 mm or less. With such a diameter, a heat exchange efficiency can improve.
- a thickness (a wall thickness) of the partition walls 4 of the cells 3 of the honeycomb structure 1 there is not any special restriction on a thickness (a wall thickness) of the partition walls 4 of the cells 3 of the honeycomb structure 1 , and the thickness may suitably be designed in accordance with the purpose.
- the wall thickness is preferably from 0.1 to 1 mm, and further preferably from 0.2 to 0.6 mm.
- the wall thickness is 0.1 mm or more, a mechanical strength can sufficiently be obtained, and damages due to impact or thermal stress can be prevented.
- the wall thickness is 1 mm or less, it is possible to prevent the disadvantage that the pressure loss of the fluid increases or that the exchange ratio decreases.
- a density of the partition walls 4 of the cells 3 of the honeycomb structure 1 is preferably from 0.5 to 5 g/cm 3 .
- the density is 0.5 g/cm 3 or more, the partition walls 4 have a sufficient strength, and it is possible to prevent the partition walls 4 from being broken by the pressure when the first fluid flows through the through channel
- the honeycomb structure 1 can be lightened.
- the honeycomb structure 1 can be strengthened, and an effect of improving the thermal conductivity can be obtained.
- the thermal conductivity is preferably 50 W/(m ⁇ K) or more, more preferably from 100 to 300 W/(m ⁇ K), and further preferably from 120 to 300 W/(m ⁇ K).
- the thermal conductivity is in this range, the heat transfer properties improve, and the heat in the honeycomb structure 1 can efficiently be discharged to the outside of the covering member 11 .
- a catalyst is preferably loaded onto the partition walls 4 of the honeycomb structure 1 .
- CO, NO x , HC or the like in the exhaust gas can be converted into a harmless substance by a catalyst reaction, and additionally reaction heat generated in the catalyst reaction is usable in the heat exchange.
- the catalyst for use in the honeycomb structure 1 of the present invention may contain at least one selected from the group consisting of noble metals (platinum, rhodium, palladium, ruthenium, indium, silver and gold), aluminum, nickel, zirconium, titanium, cerium, cobalt, manganese, zinc, copper, tin, iron, niobium, magnesium, lanthanum, samarium, bismuth and barium.
- the catalyst mentioned herein may be a metal, an oxide, or another compound.
- An amount of the catalyst (a catalyst metal+a carrier) to be loaded onto the partition walls 4 of the cells 3 of the first fluid passing portion 25 of the honeycomb structure 1 through which the first fluid (a high temperature side) flows is preferably from 10 to 400 g/L, and when the catalyst is the noble metal, the amount is further preferably from 0.1 to 5 g/L.
- the amount of the catalyst (the catalyst metal+the carrier) to be loaded is 10 g/L or more, a catalysis is easily developed.
- the amount is 400 g/L or less, the pressure loss can be suppressed, and increase of manufacturing cost can be inhibited.
- the covering member 11 is a tube made of a metal and fitted into the circumference of the honeycomb structure 1 .
- a combination of the honeycomb structure 1 and the covering member 11 is called a heat exchange member 10 .
- the honeycomb structure 1 is inserted into the covering member 11 and integrated by shrink fitting, and as shown in FIG. 2C , the heat exchange member 10 can be foamed.
- press-in, brazing, diffusion bonding or the like may be used in addition to the shrink fitting.
- the covering member 11 which covers the honeycomb structure 1 does not pass therethrough (is not permeated by) the first fluid or the second fluid, and the covering member preferably has suitable heat transfer properties, heat resistance and corrosion resistance.
- the covering member 11 include a metal tube and a ceramic tube.
- a material of the metal tube for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable.
- the covering member 11 covers a circumferential surface 7 h of the honeycomb structure 1 , and hence the first fluid flowing through the honeycomb structure 1 and the second fluid flowing through the outer side of the honeycomb structure 1 are passed without being mixed with each other, and the heat exchange between the fluids can be performed.
- the heat exchange member 10 includes the covering member 11 , and hence the heat exchange member can easily be processed in accordance with a disposing place or a disposing method, and a degree of freedom is high.
- the heat exchange member 10 is strong even against impact from the outside, because the honeycomb structure 1 can be protected by the covering member 11 .
- the tubular passing portion 32 is disposed to come in contact with the circumference of the covering member 11 .
- the tubular passing portion 32 constituting the second fluid passing portion 26 is preferably made of a material which is not permeated by the second fluid or the third fluid and has suitable heat transfer properties, heat resistance and corrosion resistance.
- Examples of the material to form the tubular passing portion 32 include a metal and a ceramic material.
- the metal for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable.
- the tubular passing portion 32 is wound around the circumferential surface 11 h of the covering member 11 to come in contact with the surface and is disposed in a spiral manner.
- Examples of a sectional shape of the tubular passing portion 32 include a circle, an ellipse, and quadrangular shapes (a square and a rectangle), but the sectional shape is not limited to these examples.
- Embodiment 1 of FIG. 1A is an example where the sectional shape of the tubular passing portion 32 is round.
- FIG. 3A is a cross-sectional view of Embodiment 1 in the axial direction.
- the heat from the first fluid e.g., the exhaust gas
- the second fluid e.g., the oil
- the third fluid e.g., the water
- the third fluid is in contact with the circumferential surface 11 h of the covering member 11 and the circumference of the tubular passing portion 32 , and hence the third fluid can control the temperatures of the first fluid and the second fluid and prevent excessive temperature rise.
- FIG. 3B is a cross-sectional view showing an embodiment where the sectional shape of the tubular passing portion 32 is elliptic.
- FIG. 3C is a cross-sectional view showing an embodiment where the sectional shape of the tubular passing portion 32 is rectangular.
- the circumferential passing portion 33 constituting the third fluid passing portion 27 contains the heat exchange member 10 (the honeycomb structure 1 and the covering member 11 ) and the tubular passing portion 32 . There is not any special restriction on a shape of the circumferential passing portion 33 as long as the circumferential passing portion is disposed to contain the tubular passing portion 32 and the honeycomb structure 1 .
- the circumferential passing portion 33 constituting the third fluid passing portion 27 preferably is not permeated by the third fluid, and has suitable heat transfer properties, heat resistance and corrosion resistance.
- Examples of a material constituting the circumferential passing portion 33 include a metal and a ceramic material. As the metal, for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable.
- a manufacturing method of the heat exchange component 30 will be described.
- a kneaded material including ceramic powder is extruded into a desirable shape, and a honeycomb formed body is prepared.
- the abovementioned ceramic material is usable.
- a predetermined amount of SiC powder, a binder, water or an organic solvent is kneaded to obtain the kneaded material, and formed to obtain the honeycomb formed body having the desirable shape.
- the honeycomb formed body is dried, and the honeycomb formed body is impregnated with metal Si and is fired in a decompressed inert gas or vacuum, whereby it is possible to obtain the honeycomb structure 1 in which the plurality of cells 3 forming the through channel of the gas are defined by the partition walls 4 .
- the temperature of the covering member 11 is raised, and as shown in FIG. 2B and FIG. 2C , the honeycomb structure 1 is inserted into the covering member 11 and integrated by the shrink fitting, so that the heat exchange member 10 can be formed.
- press-in, brazing, diffusion bonding or the like may be used in addition to the shrink fitting.
- the tubular passing portion 32 made of the metal is disposed to come in contact with the heat exchange member 10 .
- the circumferential passing portion 33 covers these components, and the heat exchange component 30 constituted of three through channels can be obtained.
- FIG. 4A and FIG. 4B show a heat exchange component 30 of Embodiment 2.
- a tubular passing portion 32 is disposed to come in contact with a circumference of a covering member 11 in a meandering manner.
- the tubular passing portion 32 meanders along an axial direction, but may meander along a peripheral direction.
- FIG. 5A and FIG. 5B show a heat exchange component 30 of Embodiment 3.
- a tubular passing portion 32 is disposed to come in contact with a circumference of a covering member 11 in a lattice manner.
- Embodiment 3 shown in FIG. 5A includes an axial direction passing portion 32 j along an axial direction and a peripheral direction passing portion 32 k along a peripheral direction. Both ends of each of the plurality of axial direction passing portions 32 j are connected to the peripheral direction passing portion 32 k, a second fluid flowing through the peripheral direction passing portion 32 k branches to flow through the axial direction passing portions 32 j, and these fluids are then collected in the peripheral direction passing portion 32 k.
- FIG. 6 shows a heat exchange component 30 of Embodiment 4.
- a tubular passing portion 32 is wound around a circumference of a covering member 11 to come in contact with the circumference as in Embodiment 1, and is disposed in a spiral manner, and additionally, the tubular passing portion 32 is bent in an axial direction.
- a length of the tubular passing portion 32 increases, heat exchange is easy to occur, and a heat exchange efficiency can improve.
- the tubular passing portion 32 of Embodiment 1 is bent, but the bending of the tubular passing portion 32 in this manner is not limited to Embodiment 1, and can similarly be performed in the other embodiments.
- a contact area between the tubular passing portion and the covering member)/(a circumferential surface area of the honeycomb structure) is preferably from 0.01 to 0.3, more preferably from 0.05 to 0.2, and further preferably from 0.1 to 0.2.
- An area of the circumferential surface 7 h of the honeycomb structure 1 contributes to the heat exchange, and hence in the above formula, the circumferential surface area of the honeycomb structure 1 is a denominator.
- the second fluid is oil, deterioration and burning damages of the oil are easy to occur.
- the ratio is in this range, the heat exchange efficiency can improve, and the deterioration and burning damages of the second fluid can be prevented.
- an upper limit of the numeric value of the above formula is preferably suppressed.
- a contact surface area of the tubular passing portion which comes in contact with the third fluid)/(a volume of the tubular passing portion) is preferably from 0.3 to 0.8, more preferably from 0.5 to 0.8, and further preferably from 0.7 to 0.8.
- the numeric value is larger, the heat exchange efficiency can improve, and the deterioration and burning damages of the second fluid can be prevented, but preparation becomes difficult, and a resistance of flow of the second fluid increases.
- the numeric value of the above formula is preferably large.
- a distance between the tubular passing portion 32 and the adjacent tubular passing portion 32 forming the second fluid passing portion is preferably from 0.3 to 7.0 mm, further preferably from 0.3 to 4.0 mm, and further preferably from 0.3 to 2.0 mm.
- the contact area between the tubular passing portion 32 and the covering member 11 can be large, but the preparation becomes difficult.
- a honeycomb structure 1 including a Si-impregnated SiC composite material as a main component was prepared as follows. First, a forming raw material obtained by kneading a predetermined amount of SiC powder, a binder, water, an organic solvent or the like was extruded into a desirable shape, and dried to obtain a honeycomb formed body. A lump of metal Si was mounted on the honeycomb formed body, and fired in vacuum or a decompressed inert gas. In this firing, the lump of metal Si mounted on the honeycomb formed body was molten, and a circumferential wall 7 and partition walls 4 were impregnated with metal Si.
- the honeycomb structure 1 prepared in this manner was a dense material in which metal Si was charged into spaces among SiC particles, and indicated high heat transfer properties having a thermal conductivity of about 150 W/(m ⁇ K).
- a shape of the honeycomb structure 1 had a diameter of 40 mm and a length of 100 mm, and in a cell structure portion, a thickness of the partition walls 4 was about 0.4 mm and a cell pitch was about 1.8 mm.
- a stainless metal tube (a covering member 11 ) was fitted into a circumferential surface 7 h of the honeycomb structure 1 by shrink fitting, to manufacture a heat exchange member 10 (see FIG. 2B and FIG. 2C ), and a tubular passing portion 32 made of stainless steel was disposed to come in contact with a circumference of the heat exchange member 10 .
- a circumferential passing portion 33 made of stainless steel covers their outer sides, and a fluid through channel constituted of three through channels was prepared (see FIG. 1A ).
- a first fluid (a gas) was passed through cells 3 of the honeycomb structure 1 of the heat exchange member 10 , a second fluid (oil) flowed into the tubular passing portion 32 , a third fluid (water) flowed into the circumferential passing portion 33 , and a heat exchange efficiency was measured.
- the first fluid an atmospheric gas was used, and the gas was passed through the cells 3 at a temperature of 400° C. and at a flow rate of 10 g/sec (0.464 Nm 3 ⁇ /min).
- the second fluid the oil was used, and was passed in a direction facing the first fluid at 60° C. and at a flow rate of 10 L/min.
- the third fluid the water was used, and passed at 30° C. and at a flow rate of 0 to 10 L/min.
- measurement was carried out, and a reference of “oil temperature drop from a state where the water was not present” was obtained.
- a temperature of the first fluid flowing on an upstream side of 20 mm from inlets of the cells 3 of the heat exchange member 10 was defined as “an inlet gas temperature”, and a temperature of the first fluid flowing on a downstream side of 200 mm from outlets of the cells 3 was defined as “an outlet gas temperature”.
- a temperature of the oil passing an inlet of the tubular passing portion 32 was defined as “an inlet oil temperature”, and a temperature of the oil passing an outlet of the tubular passing portion 32 was defined as “an outlet oil temperature”.
- a temperature of the water passing an inlet of the circumferential passing portion 33 was defined as “an inlet water temperature”, and a temperature of the water passing an outlet of the circumferential passing portion 33 was defined as “an outlet water temperature”.
- Heat exchange efficiency (%) (the inlet gas temperature ⁇ the outlet gas temperature)/(the inlet gas temperature ⁇ the inlet oil temperature) ⁇ 100
- Table 1 shows a result of a heat exchange efficiency test between the gas (the first fluid) and the oil (the second fluid) in a case where the water (the third fluid) was not present or in a case where the water (the third fluid) was not passed, and a result of a heat exchange efficiency test between the gas (the first fluid) and the oil (the second fluid) in a case where the water (the third fluid) was passed.
- a stainless metal tube was fitted into a circumferential surface 7 h of a honeycomb structure 1 by shrink fitting, to manufacture a heat exchange member 10 , and the heat exchange member 10 was disposed in a casing 41 made of stainless steel.
- Comparative Example 1 was a heat exchange component 40 which did not include a tubular passing portion 32 differently from the above example (see FIG. 7 ).
- the casing 41 corresponded to a circumferential passing portion 33 , but oil flowed into the circumferential passing portion 33 .
- Example 1 the oil flowed into the tubular passing portion 32 , but in Comparative Example 1, the tubular passing portion 32 was not disposed, a first fluid (a gas) was passed through cells 3 of the honeycomb structure 1 of the heat exchange member 10 , and a second fluid (oil) flowed into the casing 41 .
- a first fluid a gas
- a second fluid oil
- Example 1 had the tubular passing portion 32 , and a way of use was usually assumed in which the oil flowed into the tubular passing portion 32 while the water flowed into the circumferential passing portion 33 .
- the oil temperature drop from the state where the water was not present measurement was carried out in the case where “the water was not present”, but even when the oil burning damages were caused in the state where “the water was not present”, the oil burning damages were removed in the state where the water was passed, and there were not any problems.
- Example 1 when the oil flowed even in the case where “the water was not present”, a long contact distance (time) with the circumference of the heat exchange member 10 was acquired, the flow of the oil was easy to be disturbed, and hence the temperature of the whole oil was efficiently raised.
- Example 1 in each of the case where “the water was not present” and the case where the water was passed, the heat exchange between the gas (the first fluid) and the oil (the second fluid) was efficiently performed, and the oil temperature was efficiently raised. Furthermore, the flow rate of the water was adjusted to enable oil temperature control in a broad temperature range. Additionally, when the water was used, disadvantages such as the oil burning damages onto a pipe inner wall were not seen.
- Comparative Example 1 the oil passed through a short route in the axial direction, and hence the contact distance (time) with the circumference of the heat exchange member 10 shortened. Furthermore, the flow of the oil was hard to be disturbed, and hence the temperature of the whole oil was hard to be raised. In Comparative Example 1, heat from the exhaust gas was directly transferred to the oil through the covering member 11 , but the oil in the vicinity of the surface of the covering member 11 was excessively heated, and hence quality deterioration or the burning damages occurred. In addition, retention time of the oil was short, and the efficiency of the heat exchange was poor.
- the heat exchange component of the present invention is usable in a use application in which heat exchange is performed between a heating body (a high temperature side) and a body to be heated (a low temperature side).
- a heating body a high temperature side
- a body to be heated a low temperature side
- the heat exchange component can be useful for improvement of a fuel efficiency of a car.
- 1 honeycomb structure
- 2 end face (in an axial direction)
- 2 a first end face
- 2 b second end face
- 3 cell
- 4 partition wall
- 7 circumferential wall
- 7 h circumferential surface (of the honeycomb structure)
- 10 heat exchange member
- 11 covering member
- 11 h circumferential surface (of the covering member)
- 25 first fluid passing portion
- 26 second fluid passing portion
- 27 third fluid passing portion
- 30 heat exchange component
- 32 tubular passing portion
- 32 j axial direction passing portion
- 32 k peripheral direction passing portion
- 33 circumferential passing portion
- 40 heat exchange component
- 41 casing.
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Abstract
Description
- “The present application is an application based on JP-2014-240567 filed on Nov. 27, 2014 with Japan Patent Office, the entire contents of which are incorporated herein by reference.”
- 1. Field of the Invention
- The present invention relates to a heat exchange component to perform heat exchange between a plurality of fluids.
- 2. Description of the Related Art
- Improvement of a fuel efficiency of a car is demanded, and for the purpose of preventing deterioration of the fuel efficiency when an engine is cold at, e.g., startup of the engine, a system is expected in which cooling water, engine oil, automatic transmission fluid (ATF) or the like is warmed in early stages to decrease friction losses. Alternatively, for the purpose of activating an exhaust gas purifying catalyst in early stages, a system is expected in which the catalyst is heated.
- For the improvement of the fuel efficiency of the car, it is required that an oil temperature is raised in early stages. Consequently, for the purpose of setting the car engine or transmission oil at an optimum temperature, an oil warmer is used to perform heat exchange between the cooling water and the oil. However, the temperature of the cooling water is low immediately after the startup of the engine, and it takes much time to raise the temperature of the cooling water. As a result, even when the oil warmer is used, there is the problem that it takes much time until the temperature of the oil rises.
- To rapidly raise the oil temperature at the startup of the engine, it is expected that not only the cooling water but also exhaust heat of an exhaust gas are utilized as heat sources. For example, in
Patent Document 1, there is described a heat exchanger constituted of a honeycomb structure (a first fluid passing portion) and a casing (a second fluid passing portion). According to this heat exchanger, it is possible to perform heat exchange between a high-temperature exhaust gas flowing through the first fluid passing portion and a low-temperature liquid flowing through the second fluid passing portion. - [Patent Document 1] WO 2011/071161 A1
- However, for example, when oil is passed as a fluid, the oil has poor heat transfer properties, and hence there is a possibility that the oil is locally excessively heated to cause problems such as quality deterioration and burning damages. That is, in the case of heat exchange between two fluids of a first fluid and a second fluid, heat is transferred from the fluid of a high temperature to the fluid of a low temperature, and hence the temperature of one fluid is dominated by the temperature of the other fluid. Therefore, it has been difficult to obtain a desirable temperature.
- An object of the present invention is to provide a heat exchange component capable of controlling temperatures of fluids between which heat exchange is to be performed.
- The present inventors have found that the above object can be achieved by disposing a tubular passing portion forming a through channel of a second fluid to come in contact with a circumference of a covering member which covers a honeycomb structure including a through channel of a first fluid and further disposing a circumferential passing portion containing the tubular passing portion. To achieve the above object, according to the present invention, a heat exchange component is provided as follows.
- [1] A heat exchange component including a honeycomb structure having partition walls extending through the honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid, and including a ceramic material as a main component, a covering member made of a metal and fitted into a circumference of the honeycomb structure, a second fluid passing portion disposed to come in contact with a circumference of the covering member and forming a through channel of a second fluid, and a third fluid passing portion disposed in a circumference of the second fluid passing portion, containing the second fluid passing portion and forming a through channel through which a third fluid is passed to come in contact with the second fluid passing portion and the covering member.
- [2] The heat exchange component according to the above [1], wherein the second fluid passing portion is a tubular passing portion, and the tubular passing portion is wound around the circumference of the covering member to come in contact with the circumference and is spirally disposed.
- [3] The heat exchange component according to the above [1], wherein the second fluid passing portion is a tubular passing portion, and the tubular passing portion is disposed to come in contact with the circumference of the covering member in a meandering manner.
- [4] The heat exchange component according to the above [1], wherein the second fluid passing portion is disposed to come in contact with the circumference of the covering member in a lattice manlier.
- [5] The heat exchange component according to any one of the above [1] to [4], wherein (a contact area between the second fluid passing portion and the covering member)/(a circumferential surface area of the honeycomb structure) is from 0.01 to 0.3.
- [6] The heat exchange component according to any one of the above [1] to [5], wherein (a contact surface area of the second fluid passing portion which comes in contact with the third fluid)/(a volume of the second fluid passing portion) is from 0.3 to 0.8.
- [7] The heat exchange component according to any one of the above [1] to [6], wherein a distance between a tubular passing portion and the adjacent tubular passing portion forming the second fluid passing portion is from 0.3 to 7.0 mm.
- A heat exchange component has a through channel of a third fluid in addition to a through channel of a first fluid and a through channel of a second fluid to perform heat exchange, temperatures of the first fluid and the second fluid are controlled by the third fluid, and hence excessive temperature rise can be prevented. In particular, the heat exchange component includes a tubular passing portion disposed to come in contact with a circumference of a covering member which covers a honeycomb structure, and forming the through channel of the second fluid, and a circumferential passing portion containing the tubular passing portion, whereby the temperatures of the respective fluids are easy to be controlled. The heat exchange component of the present invention can be utilized even with a fluid (e.g., oil) having low heat transfer properties.
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FIG. 1A is a schematic view showing a heat exchange component ofEmbodiment 1 in an axial direction; -
FIG. 1B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component ofEmbodiment 1; -
FIG. 2A is a schematic view showing a honeycomb structure; -
FIG. 2B is a schematic view showing that the honeycomb structure and a covering member are integrated; -
FIG. 2C is a schematic view showing a heat exchange member in which the honeycomb structure and the covering member are integrated; -
FIG. 3A is a cross-sectional view in the axial direction ofEmbodiment 1; -
FIG. 3B is a cross-sectional view showing an embodiment in which a sectional shape of a tubular passing portion is elliptic; -
FIG. 3C is a cross-sectional view showing an embodiment in which a sectional shape of a tubular passing portion is rectangular; -
FIG. 4A is a schematic view showing a heat exchange component ofEmbodiment 2 in an axial direction; -
FIG. 4B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component ofEmbodiment 2; -
FIG. 5A is a schematic view showing a heat exchange component ofEmbodiment 3 in an axial direction; -
FIG. 5B is a schematic view showing a cross section vertical to the axial direction of the heat exchange component ofEmbodiment 3; -
FIG. 6 is a schematic view showing a heat exchange component ofEmbodiment 4 in an axial direction; and -
FIG. 7 is a schematic view showing a heat exchange component of Comparative Example 1 in an axial direction. - Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments, and changes, modifications and improvements can be added to the invention without departing from the gist of the invention.
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FIG. 1A andFIG. 1B show Embodiment 1 of aheat exchange component 30. Theheat exchange component 30 includes ahoneycomb structure 1 havingpartition walls 4 extending through the honeycomb structure from a first end face 2 (2 a) to a second end face 2 (2 b) to define a plurality ofcells 3 forming a through channel of a first fluid, and including a ceramic material as a main component, a coveringmember 11 made of a metal and fitted into a circumference of thehoneycomb structure 1, atubular passing portion 32 disposed to come in contact with a circumference of the coveringmember 11 and forming a through channel of a second fluid, and a circumferential passingportion 33 disposed in a circumference of the tubular passing portion, containing the tubular passingportion 32 and forming a through channel through which a third fluid is passed to come in contact with the tubular passingportion 32 and the coveringmember 11. That is, theheat exchange component 30 includes a firstfluid passing portion 25 of thehoneycomb structure 1 which is the through channel of the first fluid, a secondfluid passing portion 26 of the tubular passingportion 32 which is the through channel of the second fluid, and a thirdfluid passing portion 27 of the circumferential passingportion 33 which is the through channel of the third fluid. In theheat exchange component 30, the fluids are passed through the through channels without being mixed with each other. That is, heat exchange between the fluids is mutually performed while separating the fluids. - The
heat exchange component 30 not only can perform the heat exchange between the first fluid and the second fluid but also includes the through channel of the third fluid on a circumferential side of the second fluid, and hence the heat exchange component has a function of enabling temperature control of the second fluid. For example, when the first fluid has a higher temperature than the second fluid and the third fluid has a lower temperature than the second fluid before the heat exchange, the temperature of the second fluid rises due to the heat exchange between the second fluid and the first fluid, but the temperature can be lowered by the heat exchange between the second fluid and the third fluid. - The
heat exchange component 30 has the through channel of the third fluid in addition to the through channel of the first fluid and the through channel of the second fluid to perform the heat exchange, so that the temperatures of the first fluid and the second fluid can be controlled by the third fluid, and excessive temperature rise can be prevented. For example, when theheat exchange component 30 is attached to a vehicle and an exhaust gas as the first fluid, oil as the second fluid and water as the third fluid are passed, heat from the exhaust gas is transferred to the oil in thetubular passing portion 32 via a contact portion between the circumference of the coveringmember 11 and the tubular passingportion 32. That is, the heat is transferred from the exhaust gas to the oil, and hence the temperature of the oil can rapidly be raised. In addition, the water is passed as the third fluid, and hence even when the temperature of the exhaust gas heightens, an oil contact surface is not excessively heated, and deterioration of the oil can be prevented. Specifically, the heat exchange component can be utilized as in (a) to (c) mentioned below. - (a) When the oil temperature is low (the oil is to be heated), the heat from the exhaust gas is transferred to the
tubular passing portion 32 via the contact portion between the circumference of the coveringmember 11 and the tubular passingportion 32. In consequence, the temperature of the oil flowing through the tubular passingportion 32 can be raised. In addition, thetubular passing portion 32 is wound in a coil manner (a spiral manner) to lengthen retention time of the oil, and hence the temperature of the oil having poor heat transfer properties can efficiently be raised. - (b) After the oil temperature rises or even when the exhaust gas temperature is high, cooling water is in contact with a
circumferential surface 11 h of the coveringmember 11 and the circumference of the tubular passingportion 32, the oil contact surface is not excessively heated, and hence the deterioration of the oil can be prevented. - (c) Flow rates of the cooling water and the oil are varied, and hence balance adjustment of an amount of the heat to be transferred can be achieved. Specifically, when the oil is to be preferentially heated, an amount of the cooling water is decreased to heighten the water temperature, a temperature difference between the cooling water and the oil is increased, and hence the amount of the heat to be transferred to the oil can be increased. In addition, when the oil temperature excessively rises, the amount of the cooling water is increased, and hence the oil temperature rise can be inhibited.
- Additionally, in the
heat exchange component 30, inflow of each fluid is turned ON/OFF, and hence it is possible to only perform heat exchange between the through channels which the heat exchange is to be performed. For example, when the first fluid is a gas, the second fluid is a liquid and the third fluid is a liquid and the third fluid is only turned OFF (does not flow inside), it is possible to perform the heat exchange only between the gas (the first fluid) and the liquid (the second fluid). Additionally, when the first fluid is only turned OFF (does not flow inside), it is possible to perform the heat exchange only between the liquid (the second fluid) and the liquid (the third fluid). Alternatively, when all the fluids flow inside, it is possible to perform the heat exchange between two of the gas (the first fluid) and the liquid (the second fluid) and the liquid (the third fluid). That is, theheat exchange component 30 is usable in the heat exchange between the two fluids by inhibiting one of the first fluid to the third fluid from flowing inside. Alternatively, theheat exchange component 30 may include a through channel other than the firstfluid passing portion 25, the secondfluid passing portion 26 and the thirdfluid passing portion 27 as another fluid through channel, and may be used in heat exchange among four fluids or more. - Hereinafter, each constituent member will specifically be described.
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FIG. 2A shows a schematic view of thehoneycomb structure 1. Thehoneycomb structure 1 is made of a pillar-shaped ceramic material, and has fluid through channels extending through the honeycomb structure from the first end face 2 (2 a) to the second end face 2 (2 b) in an axial direction. Thehoneycomb structure 1 has thepartition walls 4, and a large number ofcells 3 forming the fluid through channels are defined by thepartition walls 4. Thehoneycomb structure 1 has thepartition walls 4, and hence the heat from the fluid flowing through thehoneycomb structure 1 can efficiently be collected and transferred to the outside. - An outer shape of the
honeycomb structure 1 is not limited to a round pillar shape, and a cross section of the honeycomb structure which is vertical to the axial (longitudinal) direction may be elliptic. In addition, the outer shape of thehoneycomb structure 1 may be prismatic columnar, i.e., the cross section vertical to the axial (longitudinal) direction may be a quadrangular shape or other polygonal shape. - In the
heat exchange component 30, thehoneycomb structure 1 includes the ceramic material as the main component, and hence thermal conductivities of thepartition walls 4 and acircumferential wall 7 heighten, and as a result, it is possible to efficiently perform the heat exchange in which thepartition walls 4 and thecircumferential wall 7 are interposed. It is to be noted that when it is described in the present description that the ceramic material is included as the main component, it is meant that 50 mass % or more of the ceramic material is included. - The porosity of the
honeycomb structure 1 is preferably 10% or less, more preferably 5% or less, and further preferably 3% or less. When the porosity is 10% or less, the thermal conductivity can improve. - In particular, when heat transfer properties are taken into consideration, the
honeycomb structure 1 preferably includes SiC (silicon carbide) having high heat transfer properties as the main component. It is to be noted that the main component is silicon carbide whose content ratio is 50 mass % or more of thehoneycomb structure 1. - Further specifically, as the material of the
honeycomb structure 1, there can be employed Si-impregnated SiC, (Si+Al)-impregnated SiC, metal composite SiC, recrystallized SiC, Si3N4, SiC or the like. However, in the case of a porous body, a high thermal conductivity might not be obtained, and hence to obtain the high thermal conductivity, a dense structure (a porosity of 5% or less) is preferably employed, and Si-impregnated SiC or (Si+Al)-impregnated SiC is preferably employed. SiC has a high thermal conductivity and is easy to radiate heat, but SiC impregnated with Si exhibits a high thermal conductivity or heat resistance, is also densely formed and indicates a sufficient strength as a heat transfer member. For example, in the case of a porous body of SiC (silicon carbide), the thermal conductivity is about 20 W/(m·K), but in the case of the dense body, the thermal conductivity can be about 150 W/(m·K). As to measurement of the thermal conductivity, a value of a test piece cut out from thehoneycomb structure 1 at room temperature is calculated by using a thermal diffusivity measured in an AC method, specific heat measured in a DSC (differential scanning calorimetry) method and a value of a density measured in an Archimedes method. - As a cell shape of the cross section vertical to the axial direction of the
cells 3 of thehoneycomb structure 1, a desirable shape may suitably be selected from a round shape, an elliptic shape, and polygonal shapes such as a triangular shape, a quadrangular shape and a hexagonal shape. - There is not any special restriction on a cell density (i.e., the number of cells per unit sectional area) of the
honeycomb structure 1, and the cell density may suitably be designed in accordance with a purpose, and is preferably in a range of 25 to 2000 cells/square inch (4 to 320 cells/cm2). When the cell density is 25 cells/square inch or more, not only a strength of thepartition walls 4 but also a strength of thehoneycomb structure 1 itself and an effective GSA (geometric surface area) can sufficiently be obtained. In addition, when the cell density is 2000 cells/square inch or less, a pressure loss in a case where a heat medium flows can be prevented from being increased. - An isostatic strength of the
honeycomb structure 1 is preferably 1 MPa or more and further preferably 5 MPa or more. When the honeycomb structure has such a strength, a durability can sufficiently be obtained. - The isostatic strength is obtained by the following method. A urethane rubber sheet having a thickness of 0.5 mm is wound around the circumferential surface of the
honeycomb structure 1. Furthermore, a disc having a thickness of 20 mm and made of aluminum is disposed on each of both end faces of the honeycomb structure via a round urethane rubber sheet. The aluminum disc and the urethane rubber sheet each having the same radius as a radius of each end face of the honeycomb structure is used. A vinyl tape is wound along a circumference of the aluminum disc, to seal a space between the circumference of the aluminum disc and the urethane rubber sheet, thereby obtaining a testing sample. - The prepared testing sample is put in a pressure container in which water is contained. Further, a pressure is raised at a rate of 0.3 to 3.0 MPa/minute to apply a predetermined hydrostatic pressure to the testing sample, and breakdown of the honeycomb structure and generation of cracks are confirmed. Presence/absence of the generation of the cracks is judged by confirming breakdown noise during a test and visually checking an appearance of the honeycomb structure after the test, and when any cracks are not generated, the hydrostatic pressure is further raised to evaluate the isostatic strength.
- A diameter of the
honeycomb structure 1 is preferably 200 mm or less, and further preferably 100 mm or less. With such a diameter, a heat exchange efficiency can improve. - There is not any special restriction on a thickness (a wall thickness) of the
partition walls 4 of thecells 3 of thehoneycomb structure 1, and the thickness may suitably be designed in accordance with the purpose. The wall thickness is preferably from 0.1 to 1 mm, and further preferably from 0.2 to 0.6 mm. When the wall thickness is 0.1 mm or more, a mechanical strength can sufficiently be obtained, and damages due to impact or thermal stress can be prevented. In addition, when the wall thickness is 1 mm or less, it is possible to prevent the disadvantage that the pressure loss of the fluid increases or that the exchange ratio decreases. - A density of the
partition walls 4 of thecells 3 of thehoneycomb structure 1 is preferably from 0.5 to 5 g/cm3. When the density is 0.5 g/cm3 or more, thepartition walls 4 have a sufficient strength, and it is possible to prevent thepartition walls 4 from being broken by the pressure when the first fluid flows through the through channel In addition, when the density is 5 g/cm3 or less, thehoneycomb structure 1 can be lightened. When the density is in the above range, thehoneycomb structure 1 can be strengthened, and an effect of improving the thermal conductivity can be obtained. - In the
honeycomb structure 1, the thermal conductivity is preferably 50 W/(m·K) or more, more preferably from 100 to 300 W/(m·K), and further preferably from 120 to 300 W/(m·K). When the thermal conductivity is in this range, the heat transfer properties improve, and the heat in thehoneycomb structure 1 can efficiently be discharged to the outside of the coveringmember 11. - In the
heat exchange component 30, when the exhaust gas is passed as the first fluid, a catalyst is preferably loaded onto thepartition walls 4 of thehoneycomb structure 1. When the catalyst is loaded onto thepartition walls 4 in this manner, CO, NOx, HC or the like in the exhaust gas can be converted into a harmless substance by a catalyst reaction, and additionally reaction heat generated in the catalyst reaction is usable in the heat exchange. The catalyst for use in thehoneycomb structure 1 of the present invention may contain at least one selected from the group consisting of noble metals (platinum, rhodium, palladium, ruthenium, indium, silver and gold), aluminum, nickel, zirconium, titanium, cerium, cobalt, manganese, zinc, copper, tin, iron, niobium, magnesium, lanthanum, samarium, bismuth and barium. The catalyst mentioned herein may be a metal, an oxide, or another compound. - An amount of the catalyst (a catalyst metal+a carrier) to be loaded onto the
partition walls 4 of thecells 3 of the firstfluid passing portion 25 of thehoneycomb structure 1 through which the first fluid (a high temperature side) flows is preferably from 10 to 400 g/L, and when the catalyst is the noble metal, the amount is further preferably from 0.1 to 5 g/L. When the amount of the catalyst (the catalyst metal+the carrier) to be loaded is 10 g/L or more, a catalysis is easily developed. On the other hand, when the amount is 400 g/L or less, the pressure loss can be suppressed, and increase of manufacturing cost can be inhibited. - The covering
member 11 is a tube made of a metal and fitted into the circumference of thehoneycomb structure 1. In the present description, a combination of thehoneycomb structure 1 and the coveringmember 11 is called aheat exchange member 10. As shown inFIG. 2B , thehoneycomb structure 1 is inserted into the coveringmember 11 and integrated by shrink fitting, and as shown inFIG. 2C , theheat exchange member 10 can be foamed. It is to be noted that when thehoneycomb structure 1 is bonded to the coveringmember 11, press-in, brazing, diffusion bonding or the like may be used in addition to the shrink fitting. - The covering
member 11 which covers thehoneycomb structure 1 does not pass therethrough (is not permeated by) the first fluid or the second fluid, and the covering member preferably has suitable heat transfer properties, heat resistance and corrosion resistance. Examples of the coveringmember 11 include a metal tube and a ceramic tube. As a material of the metal tube, for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable. - The covering
member 11 covers acircumferential surface 7 h of thehoneycomb structure 1, and hence the first fluid flowing through thehoneycomb structure 1 and the second fluid flowing through the outer side of thehoneycomb structure 1 are passed without being mixed with each other, and the heat exchange between the fluids can be performed. In addition, theheat exchange member 10 includes the coveringmember 11, and hence the heat exchange member can easily be processed in accordance with a disposing place or a disposing method, and a degree of freedom is high. Theheat exchange member 10 is strong even against impact from the outside, because thehoneycomb structure 1 can be protected by the coveringmember 11. - The tubular passing
portion 32 is disposed to come in contact with the circumference of the coveringmember 11. The tubular passingportion 32 constituting the secondfluid passing portion 26 is preferably made of a material which is not permeated by the second fluid or the third fluid and has suitable heat transfer properties, heat resistance and corrosion resistance. Examples of the material to form thetubular passing portion 32 include a metal and a ceramic material. As the metal, for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable. - In
Embodiment 1 shown inFIG. 1A andFIG. 1B , thetubular passing portion 32 is wound around thecircumferential surface 11 h of the coveringmember 11 to come in contact with the surface and is disposed in a spiral manner. - Examples of a sectional shape of the tubular passing
portion 32 include a circle, an ellipse, and quadrangular shapes (a square and a rectangle), but the sectional shape is not limited to these examples.Embodiment 1 ofFIG. 1A is an example where the sectional shape of the tubular passingportion 32 is round. In addition,FIG. 3A is a cross-sectional view ofEmbodiment 1 in the axial direction. The heat from the first fluid (e.g., the exhaust gas) is transferred to the second fluid (e.g., the oil) in thetubular passing portion 32 via the contact portion between the circumference of the coveringmember 11 and the tubular passingportion 32. Additionally, the third fluid (e.g., the water) is in contact with thecircumferential surface 11 h of the coveringmember 11 and the circumference of the tubular passingportion 32, and hence the third fluid can control the temperatures of the first fluid and the second fluid and prevent excessive temperature rise. In addition,FIG. 3B is a cross-sectional view showing an embodiment where the sectional shape of the tubular passingportion 32 is elliptic. Furthermore,FIG. 3C is a cross-sectional view showing an embodiment where the sectional shape of the tubular passingportion 32 is rectangular. - The circumferential passing
portion 33 constituting the thirdfluid passing portion 27 contains the heat exchange member 10 (thehoneycomb structure 1 and the covering member 11) and the tubular passingportion 32. There is not any special restriction on a shape of the circumferential passingportion 33 as long as the circumferential passing portion is disposed to contain the tubular passingportion 32 and thehoneycomb structure 1. The circumferential passingportion 33 constituting the thirdfluid passing portion 27 preferably is not permeated by the third fluid, and has suitable heat transfer properties, heat resistance and corrosion resistance. Examples of a material constituting the circumferential passingportion 33 include a metal and a ceramic material. As the metal, for example, stainless steel, titanium alloy, copper alloy, aluminum alloy, brass or the like is usable. - Next, a manufacturing method of the
heat exchange component 30 will be described. First, a kneaded material including ceramic powder is extruded into a desirable shape, and a honeycomb formed body is prepared. As a material of thehoneycomb structure 1, the abovementioned ceramic material is usable. However, for example, when thehoneycomb structure 1 including a Si-impregnated SiC composite material as a main component is manufactured, a predetermined amount of SiC powder, a binder, water or an organic solvent is kneaded to obtain the kneaded material, and formed to obtain the honeycomb formed body having the desirable shape. Further, the honeycomb formed body is dried, and the honeycomb formed body is impregnated with metal Si and is fired in a decompressed inert gas or vacuum, whereby it is possible to obtain thehoneycomb structure 1 in which the plurality ofcells 3 forming the through channel of the gas are defined by thepartition walls 4. - Subsequently, the temperature of the covering
member 11 is raised, and as shown inFIG. 2B andFIG. 2C , thehoneycomb structure 1 is inserted into the coveringmember 11 and integrated by the shrink fitting, so that theheat exchange member 10 can be formed. It is to be noted that when thehoneycomb structure 1 is bonded to the coveringmember 11, press-in, brazing, diffusion bonding or the like may be used in addition to the shrink fitting. - Afterward, the
tubular passing portion 32 made of the metal is disposed to come in contact with theheat exchange member 10. Afterward, the circumferential passingportion 33 covers these components, and theheat exchange component 30 constituted of three through channels can be obtained. -
FIG. 4A andFIG. 4B show aheat exchange component 30 ofEmbodiment 2. A tubular passingportion 32 is disposed to come in contact with a circumference of a coveringmember 11 in a meandering manner. InEmbodiment 2 shown inFIG. 4A , thetubular passing portion 32 meanders along an axial direction, but may meander along a peripheral direction. -
FIG. 5A andFIG. 5B show aheat exchange component 30 ofEmbodiment 3. A tubular passingportion 32 is disposed to come in contact with a circumference of a coveringmember 11 in a lattice manner.Embodiment 3 shown inFIG. 5A includes an axialdirection passing portion 32 j along an axial direction and a peripheraldirection passing portion 32 k along a peripheral direction. Both ends of each of the plurality of axialdirection passing portions 32 j are connected to the peripheraldirection passing portion 32 k, a second fluid flowing through the peripheraldirection passing portion 32 k branches to flow through the axialdirection passing portions 32 j, and these fluids are then collected in the peripheraldirection passing portion 32 k. -
FIG. 6 shows aheat exchange component 30 ofEmbodiment 4. In the embodiment ofFIG. 6 , atubular passing portion 32 is wound around a circumference of a coveringmember 11 to come in contact with the circumference as inEmbodiment 1, and is disposed in a spiral manner, and additionally, thetubular passing portion 32 is bent in an axial direction. In consequence, a length of the tubular passingportion 32 increases, heat exchange is easy to occur, and a heat exchange efficiency can improve. InEmbodiment 4, thetubular passing portion 32 ofEmbodiment 1 is bent, but the bending of the tubular passingportion 32 in this manner is not limited toEmbodiment 1, and can similarly be performed in the other embodiments. - In each of
Embodiments 1 to 4, (a contact area between the tubular passing portion and the covering member)/(a circumferential surface area of the honeycomb structure) is preferably from 0.01 to 0.3, more preferably from 0.05 to 0.2, and further preferably from 0.1 to 0.2. An area of thecircumferential surface 7 h of thehoneycomb structure 1 contributes to the heat exchange, and hence in the above formula, the circumferential surface area of thehoneycomb structure 1 is a denominator. The larger a numeric value of the above formula is, the more the heat exchange efficiency between the first fluid and the second fluid can improve. However, for example, when the second fluid is oil, deterioration and burning damages of the oil are easy to occur. When the ratio is in this range, the heat exchange efficiency can improve, and the deterioration and burning damages of the second fluid can be prevented. Especially inEmbodiments - In each of
Embodiments 1 to 4, (a contact surface area of the tubular passing portion which comes in contact with the third fluid)/(a volume of the tubular passing portion) is preferably from 0.3 to 0.8, more preferably from 0.5 to 0.8, and further preferably from 0.7 to 0.8. The larger a numeric value is, the more the heat exchange efficiency between the second fluid and the third fluid can improve, and when the second fluid is the oil, the deterioration and burning damages of the oil are hard to occur. When the numeric value is larger, the heat exchange efficiency can improve, and the deterioration and burning damages of the second fluid can be prevented, but preparation becomes difficult, and a resistance of flow of the second fluid increases. Especially, inEmbodiments - In each of
Embodiments 1 to 4, a distance between the tubular passingportion 32 and the adjacenttubular passing portion 32 forming the second fluid passing portion is preferably from 0.3 to 7.0 mm, further preferably from 0.3 to 4.0 mm, and further preferably from 0.3 to 2.0 mm. When the numeric value is small, the contact area between the tubular passingportion 32 and the coveringmember 11 can be large, but the preparation becomes difficult. - Hereinafter, the present invention will be described in more detail on the basis of examples, but the present invention is not limited to these examples.
- A
honeycomb structure 1 including a Si-impregnated SiC composite material as a main component was prepared as follows. First, a forming raw material obtained by kneading a predetermined amount of SiC powder, a binder, water, an organic solvent or the like was extruded into a desirable shape, and dried to obtain a honeycomb formed body. A lump of metal Si was mounted on the honeycomb formed body, and fired in vacuum or a decompressed inert gas. In this firing, the lump of metal Si mounted on the honeycomb formed body was molten, and acircumferential wall 7 andpartition walls 4 were impregnated with metal Si. Thehoneycomb structure 1 prepared in this manner was a dense material in which metal Si was charged into spaces among SiC particles, and indicated high heat transfer properties having a thermal conductivity of about 150 W/(m·K). A shape of thehoneycomb structure 1 had a diameter of 40 mm and a length of 100 mm, and in a cell structure portion, a thickness of thepartition walls 4 was about 0.4 mm and a cell pitch was about 1.8 mm. - A stainless metal tube (a covering member 11) was fitted into a
circumferential surface 7 h of thehoneycomb structure 1 by shrink fitting, to manufacture a heat exchange member 10 (seeFIG. 2B andFIG. 2C ), and a tubular passingportion 32 made of stainless steel was disposed to come in contact with a circumference of theheat exchange member 10. Afterward, a circumferential passingportion 33 made of stainless steel covers their outer sides, and a fluid through channel constituted of three through channels was prepared (seeFIG. 1A ). - A first fluid (a gas) was passed through
cells 3 of thehoneycomb structure 1 of theheat exchange member 10, a second fluid (oil) flowed into thetubular passing portion 32, a third fluid (water) flowed into the circumferential passingportion 33, and a heat exchange efficiency was measured. As the first fluid, an atmospheric gas was used, and the gas was passed through thecells 3 at a temperature of 400° C. and at a flow rate of 10 g/sec (0.464 Nm3−/min). In addition, as the second fluid, the oil was used, and was passed in a direction facing the first fluid at 60° C. and at a flow rate of 10 L/min. As the third fluid, the water was used, and passed at 30° C. and at a flow rate of 0 to 10 L/min. However, also in a case where the third fluid was not present (without the water), measurement was carried out, and a reference of “oil temperature drop from a state where the water was not present” was obtained. - A temperature of the first fluid flowing on an upstream side of 20 mm from inlets of the
cells 3 of theheat exchange member 10 was defined as “an inlet gas temperature”, and a temperature of the first fluid flowing on a downstream side of 200 mm from outlets of thecells 3 was defined as “an outlet gas temperature”. A temperature of the oil passing an inlet of the tubular passingportion 32 was defined as “an inlet oil temperature”, and a temperature of the oil passing an outlet of the tubular passingportion 32 was defined as “an outlet oil temperature”. A temperature of the water passing an inlet of the circumferential passingportion 33 was defined as “an inlet water temperature”, and a temperature of the water passing an outlet of the circumferential passingportion 33 was defined as “an outlet water temperature”. - From these temperatures, a heat exchange efficiency (%) between the gas and the oil was calculated by the following equation. Heat exchange efficiency (%)=(the inlet gas temperature−the outlet gas temperature)/(the inlet gas temperature−the inlet oil temperature)×100
- Table 1 shows a result of a heat exchange efficiency test between the gas (the first fluid) and the oil (the second fluid) in a case where the water (the third fluid) was not present or in a case where the water (the third fluid) was not passed, and a result of a heat exchange efficiency test between the gas (the first fluid) and the oil (the second fluid) in a case where the water (the third fluid) was passed.
- The
same honeycomb structure 1 as in Example 1 was prepared. - A stainless metal tube was fitted into a
circumferential surface 7 h of ahoneycomb structure 1 by shrink fitting, to manufacture aheat exchange member 10, and theheat exchange member 10 was disposed in acasing 41 made of stainless steel. Comparative Example 1 was aheat exchange component 40 which did not include a tubular passingportion 32 differently from the above example (seeFIG. 7 ). Thecasing 41 corresponded to a circumferential passingportion 33, but oil flowed into the circumferential passingportion 33. Additionally, in Example 1, the oil flowed into thetubular passing portion 32, but in Comparative Example 1, thetubular passing portion 32 was not disposed, a first fluid (a gas) was passed throughcells 3 of thehoneycomb structure 1 of theheat exchange member 10, and a second fluid (oil) flowed into thecasing 41. -
TABLE 1 Oil Flow rate Heat exchange temperature of water efficiency drop from (third between gas Oil state where fluid) (first fluid) and burning water is not [L/min] oil (second fluid) damages present [° C.] Comparative Without 27% Present 0 example 1 water (without tubular passing portion) Example 1 Without 33% Present 0 (With tubular water (reference) passing portion) 0 32 % None 2 5 32% None 2.5 10 32 % None 3 - As shown in
FIG. 1A , Example 1 had the tubular passingportion 32, and a way of use was usually assumed in which the oil flowed into thetubular passing portion 32 while the water flowed into the circumferential passingportion 33. However, as the reference of “the oil temperature drop from the state where the water was not present”, measurement was carried out in the case where “the water was not present”, but even when the oil burning damages were caused in the state where “the water was not present”, the oil burning damages were removed in the state where the water was passed, and there were not any problems. Additionally, in Example 1, when the oil flowed even in the case where “the water was not present”, a long contact distance (time) with the circumference of theheat exchange member 10 was acquired, the flow of the oil was easy to be disturbed, and hence the temperature of the whole oil was efficiently raised. - Additionally, in Example 1, in each of the case where “the water was not present” and the case where the water was passed, the heat exchange between the gas (the first fluid) and the oil (the second fluid) was efficiently performed, and the oil temperature was efficiently raised. Furthermore, the flow rate of the water was adjusted to enable oil temperature control in a broad temperature range. Additionally, when the water was used, disadvantages such as the oil burning damages onto a pipe inner wall were not seen.
- On the other hand, in Comparative Example 1, the oil passed through a short route in the axial direction, and hence the contact distance (time) with the circumference of the
heat exchange member 10 shortened. Furthermore, the flow of the oil was hard to be disturbed, and hence the temperature of the whole oil was hard to be raised. In Comparative Example 1, heat from the exhaust gas was directly transferred to the oil through the coveringmember 11, but the oil in the vicinity of the surface of the coveringmember 11 was excessively heated, and hence quality deterioration or the burning damages occurred. In addition, retention time of the oil was short, and the efficiency of the heat exchange was poor. - The heat exchange component of the present invention is usable in a use application in which heat exchange is performed between a heating body (a high temperature side) and a body to be heated (a low temperature side). When the heat exchange component is used in a use application in which exhaust heat is collected from an exhaust gas in a car field, the heat exchange component can be useful for improvement of a fuel efficiency of a car.
- 1: honeycomb structure, 2: end face (in an axial direction), 2 a: first end face, 2 b: second end face, 3: cell, 4: partition wall, 7: circumferential wall, 7 h: circumferential surface (of the honeycomb structure), 10: heat exchange member, 11: covering member, 11 h: circumferential surface (of the covering member), 25: first fluid passing portion, 26: second fluid passing portion, 27: third fluid passing portion, 30: heat exchange component, 32: tubular passing portion, 32 j: axial direction passing portion, 32 k: peripheral direction passing portion, 33: circumferential passing portion, 40: heat exchange component, and 41: casing.
Claims (7)
Applications Claiming Priority (2)
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JP2014-240567 | 2014-11-27 | ||
JP2014240567A JP6404691B2 (en) | 2014-11-27 | 2014-11-27 | Heat exchange parts |
Publications (1)
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US20160153719A1 true US20160153719A1 (en) | 2016-06-02 |
Family
ID=54707601
Family Applications (1)
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US14/947,428 Abandoned US20160153719A1 (en) | 2014-11-27 | 2015-11-20 | Heat exchange component |
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US (1) | US20160153719A1 (en) |
EP (1) | EP3026387B1 (en) |
JP (1) | JP6404691B2 (en) |
CN (1) | CN105651106A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3521577A1 (en) * | 2018-01-24 | 2019-08-07 | Rolls-Royce plc | Oil pipe assembly |
US10702094B2 (en) * | 2016-07-25 | 2020-07-07 | Gruppo Cimbali S.P.A. | Device for continuous heating of fluids |
DE102019107100A1 (en) * | 2019-03-20 | 2020-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for cooling a hot heat transfer fluid in a vehicle |
US20220228810A1 (en) * | 2021-01-18 | 2022-07-21 | Ngk Insulators, Ltd. | Flow path member for heat exchanger, and heat exchanger |
US11542053B2 (en) * | 2017-05-10 | 2023-01-03 | Gea Food Solutions Weert B.V. | Heating means for a flow wrapper |
US11666358B2 (en) | 2017-02-22 | 2023-06-06 | Gyrus Acmi, Inc. | Jacket flexible needle assembly |
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JPWO2014148584A1 (en) * | 2013-03-22 | 2017-02-16 | 日本碍子株式会社 | Heat exchanger |
JP6854229B2 (en) * | 2017-10-17 | 2021-04-07 | イビデン株式会社 | Heat exchanger |
EP3964784A1 (en) * | 2020-09-07 | 2022-03-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat exchanger and use thereof |
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CN112179174A (en) * | 2020-10-16 | 2021-01-05 | 渭南师范学院 | Ready-package high-efficient heat exchanger based on fine chemical production |
CN112985109B (en) * | 2021-03-02 | 2022-08-16 | 江西益普生药业有限公司 | High-efficient quick cooling device of glycerine |
PL130970U1 (en) * | 2022-09-01 | 2024-03-04 | Przybysz Piotr Progress | Heat exchanger |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US631426A (en) * | 1898-09-08 | 1899-08-22 | Lewis C Lanphear | Feed-water heater. |
US1326000A (en) * | 1919-12-23 | Albebt schmid | ||
US1487353A (en) * | 1921-09-08 | 1924-03-18 | Gen Electric | Electron-discharge apparatus |
US2456775A (en) * | 1944-11-16 | 1948-12-21 | Arthur J Fausek | Heat exchanger |
US2471317A (en) * | 1944-10-23 | 1949-05-24 | Arthur J Fausek | Heat exchanger |
US3850230A (en) * | 1972-04-06 | 1974-11-26 | Atomenergi Ab | Heat-exchanger |
US4231425A (en) * | 1978-02-27 | 1980-11-04 | Engstrom William R | Extracorporeal circuit blood heat exchanger |
US4739634A (en) * | 1986-01-20 | 1988-04-26 | Kabushiki Kaisha Toshiba | Cylindrical counter-flow heat exchanger |
US20120247732A1 (en) * | 2009-12-11 | 2012-10-04 | Ngk Insulators, Ltd. | Heat exchanger |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2034754A6 (en) * | 1968-03-06 | 1970-12-18 | Mille Gaston | |
CA925444A (en) * | 1969-09-08 | 1973-05-01 | Spiral Tubing Corporation | Double wall helically corrugated tubing unit and method of forming same |
JPS5539475U (en) * | 1978-09-06 | 1980-03-13 | ||
DE3114404A1 (en) * | 1981-04-09 | 1982-11-11 | Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim | Heat exchanger, in particular small internal-combustion engines which utilise waste heat |
DE3714671A1 (en) * | 1987-05-02 | 1988-11-17 | Schmidt Sche Heissdampf | HEAT EXCHANGER |
JPH11287569A (en) * | 1998-02-03 | 1999-10-19 | Mitsubishi Heavy Ind Ltd | Refrigerant heater, outdoor machine unit and air conditioner |
JP2002228370A (en) * | 2001-01-30 | 2002-08-14 | Daikin Ind Ltd | Heat exchanger |
JP2007178091A (en) * | 2005-12-28 | 2007-07-12 | Sharp Corp | Heat pump water heater |
JPWO2014148584A1 (en) * | 2013-03-22 | 2017-02-16 | 日本碍子株式会社 | Heat exchanger |
-
2014
- 2014-11-27 JP JP2014240567A patent/JP6404691B2/en active Active
-
2015
- 2015-11-20 US US14/947,428 patent/US20160153719A1/en not_active Abandoned
- 2015-11-26 CN CN201510843792.3A patent/CN105651106A/en active Pending
- 2015-11-26 EP EP15196478.0A patent/EP3026387B1/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1326000A (en) * | 1919-12-23 | Albebt schmid | ||
US631426A (en) * | 1898-09-08 | 1899-08-22 | Lewis C Lanphear | Feed-water heater. |
US1487353A (en) * | 1921-09-08 | 1924-03-18 | Gen Electric | Electron-discharge apparatus |
US2471317A (en) * | 1944-10-23 | 1949-05-24 | Arthur J Fausek | Heat exchanger |
US2456775A (en) * | 1944-11-16 | 1948-12-21 | Arthur J Fausek | Heat exchanger |
US3850230A (en) * | 1972-04-06 | 1974-11-26 | Atomenergi Ab | Heat-exchanger |
US4231425A (en) * | 1978-02-27 | 1980-11-04 | Engstrom William R | Extracorporeal circuit blood heat exchanger |
US4739634A (en) * | 1986-01-20 | 1988-04-26 | Kabushiki Kaisha Toshiba | Cylindrical counter-flow heat exchanger |
US20120247732A1 (en) * | 2009-12-11 | 2012-10-04 | Ngk Insulators, Ltd. | Heat exchanger |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10702094B2 (en) * | 2016-07-25 | 2020-07-07 | Gruppo Cimbali S.P.A. | Device for continuous heating of fluids |
US11666358B2 (en) | 2017-02-22 | 2023-06-06 | Gyrus Acmi, Inc. | Jacket flexible needle assembly |
US11542053B2 (en) * | 2017-05-10 | 2023-01-03 | Gea Food Solutions Weert B.V. | Heating means for a flow wrapper |
EP3521577A1 (en) * | 2018-01-24 | 2019-08-07 | Rolls-Royce plc | Oil pipe assembly |
DE102019107100A1 (en) * | 2019-03-20 | 2020-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for cooling a hot heat transfer fluid in a vehicle |
US20220228810A1 (en) * | 2021-01-18 | 2022-07-21 | Ngk Insulators, Ltd. | Flow path member for heat exchanger, and heat exchanger |
US11859916B2 (en) * | 2021-01-18 | 2024-01-02 | Ngk Insulators, Ltd. | Flow path member for heat exchanger, and heat exchanger |
Also Published As
Publication number | Publication date |
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EP3026387A1 (en) | 2016-06-01 |
CN105651106A (en) | 2016-06-08 |
EP3026387B1 (en) | 2019-02-27 |
JP2016102605A (en) | 2016-06-02 |
JP6404691B2 (en) | 2018-10-10 |
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