CN117889674B - Heat exchanger and engine - Google Patents
Heat exchanger and engine Download PDFInfo
- Publication number
- CN117889674B CN117889674B CN202410100817.XA CN202410100817A CN117889674B CN 117889674 B CN117889674 B CN 117889674B CN 202410100817 A CN202410100817 A CN 202410100817A CN 117889674 B CN117889674 B CN 117889674B
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- Prior art keywords
- heat exchange
- compartment
- compartments
- hydrogen fuel
- cavity
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 239000001257 hydrogen Substances 0.000 claims abstract description 117
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 117
- 239000000446 fuel Substances 0.000 claims abstract description 109
- 239000002737 fuel gas Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 26
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
- F02C7/224—Heating fuel before feeding to the burner
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0472—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger and an engine, wherein the heat exchanger comprises a shell and a plurality of heat exchange pieces, the shell is provided with a heat exchange channel for fuel gas to circulate, a first flow cavity and a second flow cavity for hydrogen fuel to circulate, the first flow cavity and the second flow cavity are respectively arranged on the shell, the first flow cavity is divided into a plurality of first compartments, the second flow cavity is divided into a plurality of second compartments, the first compartments and the second compartments are arranged in a staggered manner relatively, each heat exchange piece is provided with a heat exchange cavity for hydrogen fuel to circulate, and two ends of any heat exchange piece are respectively communicated with the corresponding first compartments and second compartments, so that hydrogen fuel circulates between the first compartments and the second compartments through the heat exchange cavities. The heat exchanger with the structure can enable the hydrogen fuel to be continuously mixed in the first compartment and the second compartment, increase the time for heating the hydrogen fuel by fuel gas, finally improve the heating uniformity of the hydrogen fuel, and enable the liquid hydrogen fuel to be completely heated into gaseous hydrogen fuel.
Description
Technical Field
The invention relates to the technical field of aeroengines, in particular to a heat exchanger and an engine.
Background
The hydrogen energy is promising as a clean renewable energy source, and the advantages and potential of hydrogen fuel applications in the aviation and fuel-engine power fields are emerging. The structure of the hydrogen fuel aeroengine is basically the same as that of the active aeroengine, the hydrogen fuel is combusted in a combustion chamber, then a turbine is pushed to generate shaft work, and a propeller or a fan is driven to rotate to do work through a speed reducer.
In the prior art, in order to facilitate carrying of hydrogen fuel, the hydrogen fuel is stored in a fuel tank of an aircraft in a low-temperature liquid state, and in order to meet the fuel requirement of an engine, the liquid hydrogen is heated into hydrogen and then can be injected into a combustion chamber to burn in the combustion chamber and provide power for the aircraft, and the heating of the liquid hydrogen is mainly realized through a transducer, and the transducer heats the liquid hydrogen through fuel gas exhausted by the engine, so that the liquid hydrogen is gasified into the hydrogen.
However, the existing energy converter directly heats liquid hydrogen after heat exchange with fuel gas discharged by an engine, so that the uniformity of heating the liquid hydrogen is low.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of low uniformity of liquid hydrogen heating caused by directly heating the liquid hydrogen after heat exchange between the conventional energy converter and fuel gas discharged by an engine.
To this end, the invention provides a heat exchanger comprising:
The shell is provided with a heat exchange channel for fuel gas circulation, a first circulation cavity and a second circulation cavity for hydrogen fuel circulation, wherein the first circulation cavity and the second circulation cavity are arranged on the shell relative to the heat exchange channel, the first circulation cavity is divided into a plurality of first compartments, the second circulation cavity is divided into a plurality of second compartments, and the first compartments and the second compartments are arranged in a staggered manner relatively;
The heat exchange pieces are provided with heat exchange cavities for the hydrogen fuel to circulate, and two ends of any one of the heat exchange pieces are respectively communicated with the corresponding first compartment and second compartment so that the hydrogen fuel circulates between the first compartment and the second compartment through the heat exchange cavities;
Along the conveying direction of the hydrogen fuel, the hydrogen fuel in one first compartment flows into a second compartment which is arranged in a staggered manner relative to the first compartment through a heat exchange piece communicated with the first compartment and is arranged in a communicated manner through the heat exchange piece, and the hydrogen fuel in the second compartment flows into another first compartment which is arranged in a staggered manner relative to the second compartment through another heat exchange piece arranged adjacent to the heat exchange piece.
Optionally, in the heat exchanger of the present invention, two adjacent heat exchange members, two ends of one heat exchange member are respectively connected to the first compartment and the second compartment, and two ends of the other heat exchange member are respectively connected to the first compartment and the second compartment, so that the first compartment and the second compartment are relatively staggered and connected.
Optionally, the heat exchanger further comprises a plurality of separators, wherein the separators are arranged in the first circulation cavity at intervals so as to divide the first circulation cavity into a plurality of first compartments, and the separators are also arranged in the second circulation cavity at intervals so as to divide the second circulation cavity into a plurality of second compartments.
Optionally, in the above heat exchanger, the heat exchange members are disposed on two sides of any one of the partition members, and two heat exchange members are disposed between every two adjacent partition members.
Optionally, in the heat exchanger, the housing further has a medium inlet communicating with one of the first compartments and a medium outlet communicating with the other of the first compartments;
Or, the housing may further have a media inlet in communication with one of the second compartments and a media outlet in communication with the other of the second compartments.
Optionally, in the above heat exchanger, the housing has a hollow cavity with two open ends, the hollow cavity forms the heat exchange channel, and the two open ends are respectively used as a gas inlet and a gas outlet, so that the gas enters the heat exchange channel through the gas inlet and flows out of the heat exchange channel through the gas outlet.
Optionally, in the heat exchanger, the housing further has a mounting portion, the mounting portion is disposed on a side of the gas inlet away from the gas outlet, and the housing is adapted to be connected to an engine through the mounting portion.
Optionally, in the heat exchanger, a part of the housing is tapered, so that a part of the heat exchange channel fits into a tail nozzle of the engine.
Optionally, in the above heat exchanger, the heat exchange member is disposed around the heat exchange channel so as to contact with the fuel gas.
An engine comprising the heat exchanger.
The technical scheme provided by the invention has the following advantages:
1. The invention provides a heat exchanger, which comprises a shell and a plurality of heat exchange pieces, wherein the shell is provided with a heat exchange channel for fuel gas to circulate, a first flow cavity and a second flow cavity for hydrogen fuel to circulate, the first flow cavity and the second flow cavity are respectively arranged on the heat exchange channel, the first flow cavity is divided into a plurality of first compartments, the second flow cavity is divided into a plurality of second compartments, the first compartments and the second compartments are arranged in a staggered manner relatively, each heat exchange piece is provided with a heat exchange cavity for hydrogen fuel to circulate, two ends of any heat exchange piece are respectively communicated with the corresponding first compartment and the corresponding second compartment, so that the hydrogen fuel circulates between the first compartment and the second compartment through the heat exchange piece arranged in a communicated manner along the conveying direction of the hydrogen fuel, and the hydrogen fuel in one of the first compartments flows into the second compartment arranged in a staggered manner relatively to the first compartment and through the heat exchange piece arranged in a communicated manner, and the hydrogen fuel in the second compartment flows into the other first compartment arranged in a staggered manner relatively to the second compartment through the other heat exchange piece arranged adjacently to the heat exchange piece.
The heat exchanger with the structure is characterized in that the heat exchanger is provided with a plurality of heat exchange pieces arranged on the shell, wherein the shell is provided with a heat exchange channel, a first flow cavity and a second flow cavity, the heat exchange channel can be used for fuel gas circulation, the first flow cavity and the second flow cavity can be used for hydrogen fuel circulation, the first flow cavity and the second flow cavity are respectively arranged on the shell, the fuel gas circulated in the heat exchange channel can transfer heat into the first flow cavity and the second flow cavity so as to heat the hydrogen fuel mixed by the liquid hydrogen fuel and the liquid gas in the first flow cavity and the second flow cavity, meanwhile, the first flow cavity is divided into a plurality of first compartments, the second flow cavity is divided into a plurality of second compartments, the first compartments and the second compartments are arranged in a relative dislocation mode, each heat exchange piece is provided with a heat exchange cavity, and the heat exchange cavities can be used for hydrogen fuel circulation, and both ends of all the heat exchange pieces are respectively communicated with the corresponding first compartment and the second compartment, so that hydrogen fuel can circulate between the first compartment and the second compartment through the heat exchange cavity, and the hydrogen fuel is always heated by fuel gas circulated in the heat exchange channel in the process of flowing in the heat exchange cavity, meanwhile, because the first compartment and the second compartment are arranged in a relative dislocation mode, the hydrogen fuel in one of the first compartments can flow into the second compartment which is arranged in a relative dislocation mode with the first compartment and is communicated with the first compartment through one heat exchange piece communicated with the first compartment, and the hydrogen fuel in the second compartment can flow into the other first compartment which is arranged in a relative dislocation mode with the second compartment through the other heat exchange piece adjacent to the heat exchange piece, so that the hydrogen fuel always flows back and forth between the first compartment and the second compartment which are arranged in a relative dislocation mode, the mixing is performed in the first compartment or the second compartment continuously, and at the same time, the heating time of the hydrogen fuel by the fuel gas is increased in the process, so that the heating uniformity of the hydrogen fuel is improved, and the liquid hydrogen fuel can be completely heated into the gaseous hydrogen fuel and used as the fuel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a heat exchanger provided in an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a heat exchanger provided in an embodiment of the invention;
FIG. 3 is a top cross-sectional view of a heat exchanger provided in an embodiment of the invention;
FIG. 4 is a schematic flow diagram of a heat exchanger provided in an embodiment of the invention;
FIG. 5 is a side cross-sectional view of a heat exchanger provided in an embodiment of the invention;
Reference numerals illustrate:
1-a shell, 11-a heat exchange channel, 12-a first flow cavity, 121-a first compartment, 13-a second flow cavity, 131-a second compartment, 14-a medium inlet, 15-a medium outlet, 16-a gas inlet, 17-a gas outlet and 18-a mounting part;
2-heat exchange piece, 21-heat exchange cavity;
3-spacers;
4-tail nozzle.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a heat exchanger, as shown in fig. 1 to 5, comprising a shell 1 and a plurality of heat exchange elements 2, wherein the shell 1 is provided with a heat exchange channel 11 for fuel gas circulation and a first circulation cavity 12 and a second circulation cavity 13 for hydrogen fuel circulation, the first circulation cavity 12 and the second circulation cavity 13 are respectively arranged on the shell 1, the first circulation cavity 12 is divided into a plurality of first compartments 121, the second circulation cavity 13 is divided into a plurality of second compartments 131, the first compartments 121 and the second compartments 131 are arranged in a relatively staggered manner, each heat exchange element 2 is provided with a heat exchange cavity 21 for hydrogen fuel circulation, two ends of any heat exchange element 2 are respectively communicated with the corresponding first compartments 121 and the second compartments 131, so that the hydrogen fuel circulates between the first compartments 121 and the second compartments 131 through the heat exchange cavities 21, wherein the hydrogen fuel in one first compartment 121 flows into the second compartment 131 which is arranged in a relatively staggered manner through the heat exchange element 2 which is arranged in communication with the first compartment 121, and the second compartment 131 which is arranged in a relatively staggered manner through the heat exchange element 2, and the other adjacent second compartment 131 is arranged in the heat exchange element 2 which is arranged in the other than the second compartment 131 which is arranged in the other compartment 121.
According to the heat exchanger with the structure, through the plurality of heat exchange pieces 2 arranged on the shell 1, the heat exchange pieces 2 are heat exchange tubes in the embodiment, the shell 1 is provided with the heat exchange channel 11, the first flow cavity 12 and the second flow cavity 13, the heat exchange channel 11 can be used for fuel gas circulation, the temperature of the fuel gas exceeds 500 ℃, the first flow cavity 12 and the second flow cavity 13 can be used for hydrogen fuel circulation, the first flow cavity 12 and the second flow cavity 13 are arranged on the shell 1 relative to the heat exchange channel 11, the fuel gas circulating in the heat exchange channel 11 can transfer heat into the first flow cavity 12 and the second flow cavity 13, so that the hydrogen fuel mixed with the liquid hydrogen fuel in the first flow cavity 12 and the second flow cavity 13 can be heated, meanwhile, the first flow cavity 12 is divided into a plurality of first compartments 121, the second flow cavity 13 is divided into a plurality of second compartments 131, the first compartments 121 and the second compartments 131 are arranged in a relative dislocation mode, each heat exchange piece 2 is provided with the heat exchange cavity 21, the heat exchange cavity 21 can be used for the hydrogen fuel gas flowing in the heat exchange channel 11, the hydrogen fuel gas can flow through the first flow cavity 12 and the second flow cavity 13, and the hydrogen fuel can flow through the first compartments 21 and the second compartments 121 and the second compartments 131, and the heat exchange channels can be respectively conducted through the two ends of the hydrogen fuel 21 and the second compartments and the first compartments 121.
Meanwhile, as the first compartment 121 and the second compartment 131 are arranged in a relative dislocation manner, in the conveying direction of the hydrogen fuel, the hydrogen fuel in one first compartment 121 can flow into the second compartment 131 which is arranged in a relative dislocation manner with the first compartment 121 and is communicated with the first compartment through one heat exchange piece 2 communicated with the first compartment, the hydrogen fuel in the second compartment 131 can flow into the other first compartment 121 which is arranged in a relative dislocation manner with the second compartment 131 through the other heat exchange piece 2 which is arranged adjacent to the heat exchange piece 2, so that the hydrogen fuel always flows back and forth between the first compartment 121 and the second compartment 131 which are arranged in a relative dislocation manner and is continuously mixed in the first compartment 121 or the second compartment 131, meanwhile, the heating time of the hydrogen fuel by fuel gas is increased in the process, the heating uniformity of the hydrogen fuel is finally improved, and the liquid hydrogen fuel can be completely heated into gaseous hydrogen fuel and used as fuel.
In addition, the outer diameter R of the heat exchange piece 2 is 5-10mm, the inner diameter R is 3-8mm, the wall thickness of the heat exchange piece 2 is more than or equal to 1.5mm, namely R-R is more than or equal to 1.5mm, the transition round angle R ' between the heat exchange piece 2 and the outer wall of the heat exchanger is more than or equal to 1mm, the minimum distance W1 between the outer walls of the adjacent heat exchange pieces 2 is 0.4R-0.6R, the thickness W2 of the outer wall of the heat exchange piece is more than or equal to 1.5mm, the distance W3 between the inner wall of the heat exchange piece 2 and the outer wall of the heat exchanger is 0.5mm-0.5 (R-R), the outer wall of the heat exchange piece 2 is allowed to be lower than the exhaust edge of the tail spray pipe 4, but the distance W4 is less than or equal to 0.5 (R-R), the round angle R ' between the inner part of each compartment and the round angle R ' of the outer wall of the heat exchanger is more than or equal to 4mm.
As shown in fig. 1 to 3, in the heat exchanger provided in this embodiment, two ends of one heat exchange member 2 of two adjacent heat exchange members 2 are respectively communicated with a first compartment 121 and a second compartment 131, and two ends of the other heat exchange member 2 are respectively communicated with the first compartment 121 and the other second compartment 131, so that the first compartment 121 and the second compartment 131 are arranged in a staggered communication manner.
The heat exchanger with the structure is provided with the first compartment 121 and the second compartment 131 which are communicated in a staggered manner, so that two adjacent heat exchange pieces 2 are arranged, two ends of one heat exchange piece 2 are respectively communicated with the first compartment 121 and the second compartment 131, and two ends of the other heat exchange piece 2 are respectively communicated with the first compartment 121 and the second compartment 131 which is adjacent to the second compartment 131, so that hydrogen fuel can flow back and forth between the first compartment 121 and the second compartment 131 which are arranged in a staggered manner, and the flow heating time of the hydrogen fuel is prolonged.
The heat exchanger provided in this embodiment, as shown in fig. 3, further includes a plurality of separators 3, where the separators 3 are disposed in the first circulation cavity 12 at intervals so that the first circulation cavity 12 is divided into a plurality of first compartments 121, and the separators 3 are disposed in the second circulation cavity 13 at intervals so that the second circulation cavity 13 is divided into a plurality of second compartments 131.
In the heat exchanger with the above structure, through the partition piece 3 arranged in the first flow cavity 12 and the second flow cavity 13, the partition piece 3 is a partition plate in the embodiment, the partition piece 3 is specifically arranged in the first flow cavity 12 and the second flow cavity 13 at intervals, so that the first flow cavity 12 is divided into a plurality of first compartments 121 and the second flow cavity 13 is divided into a plurality of second compartments 131, hydrogen fuel cannot flow in the first flow cavity 12 or the second flow cavity 13 directly, but must flow through the heat exchange cavity 21 on the heat exchange piece 2, so that the hydrogen fuel can flow back and forth between the first compartments 121 and the second compartments 131 which are arranged in a staggered manner, the flow heating time of the hydrogen fuel is increased, and in addition, the width W5 of the partition piece 3 between the compartments is more than or equal to 1mm.
As shown in fig. 2 and 3, heat exchange members 2 are disposed on two sides of any one of the partition members 3, and two heat exchange members 2 are disposed between every two adjacent partition members 3.
According to the heat exchanger with the structure, the heat exchange pieces 2 are arranged on two sides of each partition piece 3, and two heat exchange pieces 2 are arranged between every two adjacent partition pieces 3, so that each first compartment 121 or each second compartment 131 can be communicated by the two heat exchange pieces 2, one heat exchange piece 2 is responsible for guiding hydrogen fuel into the first compartment 121 or the second compartment 131 from the other first compartment 121 or the second compartment 131, and the other heat exchange piece 2 is responsible for guiding the hydrogen fuel in the first compartment 121 or the second compartment 131 into the other first compartment 121 or the second compartment 131, so that normal circulation of the hydrogen fuel is ensured.
The heat exchanger provided in this embodiment, as shown in fig. 1 and 2, the housing 1 further has a medium inlet 14 communicating with a first compartment 121 and a medium outlet 15 communicating with another first compartment 121, or the housing 1 further has a medium inlet 14 communicating with a second compartment 131 and a medium outlet 15 communicating with another second compartment 131.
The heat exchanger with the above structure is provided with the medium inlet 14 and the medium outlet 15 arranged on the shell 1, wherein the medium inlet 14 is communicated with one first compartment 121, the medium outlet 15 is communicated with the other first compartment 121, so that a worker can pour liquid hydrogen fuel into one first compartment 121 through the medium inlet 14, the liquid hydrogen fuel can circulate in the heat exchanger and be heated by fuel gas into gaseous hydrogen fuel, the medium inlet 14 can be communicated with one second compartment 131, and the medium outlet 15 is communicated with the other second compartment 131, so that the worker can pour the liquid hydrogen fuel into one second compartment 131 through the medium inlet 14, and the liquid hydrogen fuel can circulate in the heat exchanger and be heated by the fuel gas into gaseous hydrogen fuel.
Alternatively, the medium inlet 14 may be in communication with a first compartment 121, and the medium outlet 15 may be in communication with a second compartment 131, so that the above-described effect may be achieved, although the medium inlet 14 may be in communication with a second compartment 131, and the medium outlet 15 may be in communication with a first compartment 121, so that the above-described effect may be achieved.
As shown in fig. 1 and 2, the heat exchanger provided in this embodiment is provided, where the housing 1 has a hollow cavity with two open ends, and the hollow cavity forms a heat exchange channel 11, and the two open ends are respectively used as a gas inlet 16 and a gas outlet 17, so that gas enters the heat exchange channel 11 through the gas inlet 16 and flows out of the heat exchange channel 11 through the gas outlet 17.
The heat exchanger with the structure has the advantages that the shell 1 is provided with the hollow cavity, the two ends of the hollow cavity are both provided with the openings, the hollow cavity forms the heat exchange channel 11 through which fuel gas flows, and meanwhile, the openings at the two ends of the hollow cavity are respectively used as the fuel gas inlet 16 and the fuel gas outlet 17, so that fuel gas can enter the heat exchange channel 11 through the fuel gas inlet 16 and flow out of the heat exchange channel 11 through the fuel gas outlet 17, and in the process, the fuel gas can heat the flowing liquid hydrogen fuel and the hydrogen fuel mixed with liquid and gas in the first compartment 121, the second compartment 131 and the heat exchange cavity 21, so that the fuel gas is heated into the hydrogen fuel in a complete gaseous state, and the utilization rate of the fuel gas is improved.
The heat exchanger provided in this embodiment, as shown in fig. 1 and 2, the housing 1 further has a mounting portion 18, the mounting portion 18 being provided on a side of the gas inlet 16 remote from the gas outlet 17, and the housing 1 being adapted to be connected to an engine through the mounting portion 18.
The heat exchanger with the above structure is characterized in that the installation part 18 is arranged on the shell 1, the installation part 18 is an installation edge in the embodiment, the installation part 18 is specifically arranged on one side of the shell 1, which is far away from the gas outlet 17, of the gas inlet 16, when the shell 1 needs to be installed on an engine, the tail pipe 4 of the engine can be inserted into the heat exchange channel 11 on the shell 1, the installation part 18 is contacted with the engine, and then the shell 1 and the engine are connected together by sequentially penetrating through the installation part 18 and the engine through bolts, so that gas sprayed out of the engine can circulate in the heat exchange channel 11 and heat hydrogen fuel.
The heat exchanger provided in this embodiment, as shown in fig. 1 to 3, has a part of the housing 1 arranged in a cone shape so that a part of the heat exchanging channels 11 is adapted to the tail pipe 4 of the engine.
The heat exchanger with the structure is characterized in that a part of the shell 1 is conical, so that a part of the heat exchange channel 11 on the shell 1 is also configured into a conical shape, the part of the conical heat exchange channel is further enabled to be matched with the tail nozzle 4 of the engine, the tail nozzle 4 can be inserted into the heat exchange channel 11, and in addition, the distance W6 between the heat exchange piece 2 and the tail nozzle 4 at the conical part of the heat exchanger is 2-5mm.
Of course, it is also possible to provide the housing 1 partly in a cylindrical shape and to provide the part of the heat exchange channel 11 in the housing 1 in a conical shape, and to adapt the part of the conical heat exchange channel 11 to the tail pipe 4 of the engine.
As shown in fig. 1 to 3, the heat exchanger provided in this embodiment is provided with heat exchange members 2 disposed around a heat exchange channel 11 so as to contact with the fuel gas.
The heat exchanger with the structure is provided with the heat exchange piece 2 and is arranged in the heat exchange channel 11 in a surrounding mode, so that the heat exchange piece 2 can be in contact with fuel gas, and when the fuel gas flows in the heat exchange channel 11, the fuel gas can heat the heat exchange piece 2, and then the heat exchange piece 2 can heat liquid hydrogen fuel flowing in the heat exchange cavity 21 and hydrogen fuel mixed with liquid and gas, so that the liquid hydrogen fuel and the hydrogen fuel are completely heated into gaseous hydrogen fuel.
The heat exchanger provided by the invention has the following heat exchange process:
Firstly, a heat exchanger is arranged on a reserved mounting edge of an engine tail nozzle 4, after the heat exchanger is arranged, a heat exchange channel 11 is formed by a conical part of the heat exchanger and the tail nozzle 4, the tail nozzle 4 is provided with round holes distributed in a staggered mode, then most fuel gas of the engine is discharged backwards through the tail nozzle 4, a small part of the fuel gas enters the heat exchange channel 11 through the round holes formed in the tail nozzle 4, the tail end of the heat exchange channel 11 is mixed with main fuel gas, a heat exchange piece 2 of a cylindrical part of the heat exchanger is directly exposed to the fuel gas, and finally, the fuel gas heats the heat exchange piece 2 and each compartment to raise the temperature of hydrogen fuel flowing in the heat exchange piece 2 and each compartment. Thus, the heat exchange process of the heat exchanger is completed.
The heat exchanger provided by the invention is characterized in that a plurality of heat exchange pieces 2 are arranged on a shell 1, wherein the shell 1 is provided with a heat exchange channel 11, a first circulation cavity 12 and a second circulation cavity 13, the heat exchange channel 11 can be used for fuel gas circulation, the first circulation cavity 12 and the second circulation cavity 13 can be used for hydrogen fuel circulation, the heat exchange channels 11 of the first circulation cavity 12 and the second circulation cavity 13 are respectively arranged on the shell 1, so that the fuel gas circulated in the heat exchange channels 11 can transfer heat into the first circulation cavity 12 and the second circulation cavity 13 to heat the hydrogen fuel in the first circulation cavity 12 and the second circulation cavity 13, meanwhile, the first circulation cavity 12 is divided into a plurality of first compartments 121, the second circulation cavity 13 is divided into a plurality of second compartments 131, the first compartments 121 and the second compartments 131 are arranged in a relative dislocation way, each heat exchange piece 2 is provided with a heat exchange cavity 21, the heat exchange cavity 21 can be used for hydrogen fuel circulation, two ends of all the heat exchange pieces 2 are respectively communicated with the corresponding first compartment 121 and the corresponding second compartment 131, so that the hydrogen fuel can circulate between the first compartment 121 and the second compartment 131 through the heat exchange cavity 21, meanwhile, due to the relative dislocation between the first compartment 121 and the second compartment 131, the hydrogen fuel in one first compartment 121 can flow into the second compartment 131 which is in relative dislocation with the first compartment 121 and is in communication with the heat exchange piece 2 through one heat exchange piece 2 communicated with the hydrogen fuel in the first compartment 121, and the hydrogen fuel in the second compartment 131 can flow into the other first compartment 121 which is in relative dislocation with the second compartment 131 through the other heat exchange piece 2 which is adjacent to the heat exchange piece 2, therefore, the hydrogen fuel always flows back and forth between the first compartment 121 and the second compartment 131 which are arranged in a staggered manner, so that the time for heating the hydrogen fuel by the fuel gas is increased, the heating uniformity of the hydrogen fuel is finally improved, and the liquid hydrogen fuel can be completely heated into the gaseous hydrogen fuel and used as the fuel.
Example 2
The present embodiment provides an engine, as shown in fig. 1 to 4, including the heat exchanger described above. The engine with the structure is characterized in that the engine is provided with a plurality of heat exchange pieces 2 arranged on the shell 1, wherein the shell 1 is provided with a heat exchange channel 11, a first flow cavity 12 and a second flow cavity 13, the heat exchange channel 11 can be used for fuel gas circulation, the first flow cavity 12 and the second flow cavity 13 can be used for fuel hydrogen circulation, the heat exchange channels 11 are arranged on the shell 1, so that the fuel gas circulated in the heat exchange channel 11 can transfer heat to the first flow cavity 12 and the second flow cavity 13, the first flow cavity 12 is divided into a plurality of first compartments 121, the second flow cavity 13 is divided into a plurality of second compartments 131, the first compartments 121 and the second compartments 131 are arranged in a relative dislocation mode, each heat exchange piece 2 is provided with a heat exchange cavity 21, the heat exchange cavity 21 can be used for fuel hydrogen circulation, and both ends of the heat exchange pieces 2 are respectively communicated with the corresponding first compartments 121 and the second compartments, so that the heat can be transferred to the first compartments 12 and the second compartments through the heat exchange pieces, the first compartments and the second compartments can be arranged in a relative dislocation mode, the second compartments 121 and the second compartments can be communicated with the other of the other compartments 121 and the second compartments 131 through the other heat exchange pieces, and the other compartments 121 and the other compartments 2 can be arranged in the relative dislocation mode, and the other compartments can be communicated with the other compartments 121 and the other compartments 131 through the first compartments 121 and the second compartments 131, and the other compartments 121 and the other compartments 131 are arranged in the relative dislocation mode, therefore, the hydrogen fuel always flows back and forth between the first compartment 121 and the second compartment 131 which are arranged in a staggered manner, so that the time for heating the hydrogen fuel by the fuel gas is increased, the heating uniformity of the hydrogen fuel is finally improved, and the liquid hydrogen fuel can be completely heated into the gaseous hydrogen fuel and used as the fuel.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A heat exchanger, comprising:
The shell (1) is provided with a heat exchange channel (11) for fuel gas circulation, a first circulation cavity (12) and a second circulation cavity (13) for hydrogen fuel circulation, the first circulation cavity (12) and the second circulation cavity (13) are arranged on the shell (1) relative to the heat exchange channel (11), the first circulation cavity (12) is divided into a plurality of first compartments (121), the second circulation cavity (13) is divided into a plurality of second compartments (131), and the first compartments (121) and the second compartments (131) are arranged in a staggered mode relatively;
A plurality of heat exchange pieces (2), each heat exchange piece (2) is provided with a heat exchange cavity (21) for the hydrogen fuel to circulate, and two ends of any heat exchange piece (2) are respectively communicated with the corresponding first compartment (121) and the second compartment (131) so as to enable the hydrogen fuel to circulate between the first compartment (121) and the second compartment (131) through the heat exchange cavities (21);
Wherein, along the conveying direction of the hydrogen fuel, the hydrogen fuel in one first compartment (121) flows into a second compartment (131) which is arranged in a staggered way relative to the first compartment (121) and is arranged in a communicated way through the heat exchange piece (2) through one heat exchange piece (2) which is arranged in a communicated way, and the hydrogen fuel in the second compartment (131) flows into the other first compartment (121) which is arranged in a staggered way relative to the second compartment (131) through the other heat exchange piece (2) which is arranged adjacent to the heat exchange piece (2);
The shell (1) is provided with a hollow cavity with two open ends, the hollow cavity forms the heat exchange channel (11), and the two open ends are respectively used as a fuel gas inlet (16) and a fuel gas outlet (17) so that the fuel gas enters the heat exchange channel (11) through the fuel gas inlet (16) and flows out of the heat exchange channel (11) through the fuel gas outlet (17);
the heat exchange piece (2) is arranged on the heat exchange channel (11) in a surrounding mode so as to be in contact with the fuel gas.
2. Heat exchanger according to claim 1, wherein, in two adjacent heat exchange members (2), two ends of one heat exchange member (2) are respectively communicated with one first compartment (121) and one second compartment (131), and two ends of the other heat exchange member (2) are respectively communicated with the first compartment (121) and the other second compartment (131), so that the first compartment (121) and the second compartment (131) are arranged in a relatively staggered communication.
3. The heat exchanger according to claim 1 or 2, further comprising a number of dividers (3), a portion of the dividers (3) being arranged at intervals within the first flow chamber (12) such that the first flow chamber (12) is divided into a number of first compartments (121), and another portion of the dividers (3) being arranged at intervals within the second flow chamber (13) such that the second flow chamber (13) is divided into a number of second compartments (131).
4. A heat exchanger according to claim 3, wherein the heat exchange members (2) are provided on both sides of any one of the partition members (3), and two of the heat exchange members (2) are provided between each adjacent two of the partition members (3).
5. The heat exchanger according to claim 1, wherein the housing (1) further has a medium inlet (14) communicating with one of the first compartments (121) and a medium outlet (15) communicating with the other of the first compartments (121);
Or, the housing (1) further has a medium inlet (14) communicating with one of the second compartments (131) and a medium outlet (15) communicating with the other of the second compartments (131).
6. The heat exchanger according to claim 5, characterized in that the housing (1) further has a mounting portion (18), the mounting portion (18) being arranged on a side of the gas inlet (16) remote from the gas outlet (17), the housing (1) being adapted to be connected to an engine by means of the mounting portion (18).
7. A heat exchanger according to claim 6, characterized in that one end of the housing (1) is arranged to be conical in order to adapt the heat exchanging channel (11) to the tail pipe (4) of the engine.
8. An engine comprising a heat exchanger according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410100817.XA CN117889674B (en) | 2024-01-24 | 2024-01-24 | Heat exchanger and engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410100817.XA CN117889674B (en) | 2024-01-24 | 2024-01-24 | Heat exchanger and engine |
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| CN117889674B true CN117889674B (en) | 2025-02-18 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439380A (en) * | 2009-01-25 | 2012-05-02 | 美国阿尔科伊尔有限公司 | Heat exchanger |
| CN105135908A (en) * | 2015-10-08 | 2015-12-09 | 张家港市江南锅炉压力容器有限公司 | Product gas cooler |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB897593A (en) * | 1959-03-10 | 1962-05-30 | Ver Economiser Werke G M B H | Improvements in and relating to heat exchangers |
| US4416325A (en) * | 1980-03-31 | 1983-11-22 | Foster Wheeler Energy Corporation | Heat exchanger |
| CN110038501B (en) * | 2019-05-22 | 2024-06-04 | 山东豪迈机械制造有限公司 | Heat exchange shell and reactor |
| CN115930637A (en) * | 2023-01-09 | 2023-04-07 | 中国航发湖南动力机械研究所 | Hydrogen-cooled heat exchanger with tail nozzle |
-
2024
- 2024-01-24 CN CN202410100817.XA patent/CN117889674B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439380A (en) * | 2009-01-25 | 2012-05-02 | 美国阿尔科伊尔有限公司 | Heat exchanger |
| CN105135908A (en) * | 2015-10-08 | 2015-12-09 | 张家港市江南锅炉压力容器有限公司 | Product gas cooler |
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