CN114060850A - Ultra-high temperature air fuel heat exchanger with independent cooling interlayer - Google Patents
Ultra-high temperature air fuel heat exchanger with independent cooling interlayer Download PDFInfo
- Publication number
- CN114060850A CN114060850A CN202111209701.2A CN202111209701A CN114060850A CN 114060850 A CN114060850 A CN 114060850A CN 202111209701 A CN202111209701 A CN 202111209701A CN 114060850 A CN114060850 A CN 114060850A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- section
- interlayer
- air inlet
- cooling interlayer
- 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.)
- Pending
Links
- 239000011229 interlayer Substances 0.000 title claims abstract description 127
- 238000001816 cooling Methods 0.000 title claims abstract description 100
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 23
- 239000003921 oil Substances 0.000 abstract description 57
- 239000000295 fuel oil Substances 0.000 abstract description 30
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses an ultrahigh-temperature air fuel heat exchanger with an autonomous cooling interlayer, which comprises a heat exchanger body and a cooling interlayer shell, wherein the heat exchanger body comprises an air inlet section, a heat exchange section and an air outlet section which are sequentially connected, the free end of the air inlet section is connected with an air inlet flange, one end of the heat exchange section, which is close to the air inlet section, is provided with a first oil outlet, the cooling interlayer shell is sleeved on the outer walls of the air inlet section and the heat exchange section, the cooling interlayer shell, the heat exchanger body shell and the wall surface of the air inlet flange are enclosed to form a closed cooling interlayer cavity, the cooling interlayer shell is provided with a second oil outlet, the second oil outlet is close to the air inlet flange, and the cooling interlayer cavity is communicated with the heat exchange cavity through the first oil outlet and is communicated with the outside through the second oil outlet. The low-temperature fuel oil in the cooling interlayer cavity exchanges heat with the high-temperature gas at the air inlet section, the wall surface of the heat exchanger is cooled on the premise of not introducing extra low-temperature fuel oil, and the failure of the air inlet flange due to overhigh temperature is avoided.
Description
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to an ultrahigh-temperature air-fuel oil heat exchanger with an automatic cooling interlayer.
Background
The heat exchanger is a common device in chemical industry, petroleum, steel, power machinery, food and other industrial departments, and plays an important role in production. Particularly in the field of aerospace, the heat exchanger is a core component for improving the quality of cooling air, and the heat exchanger has a severe working environment, a high intake temperature and a limited cooling medium, so that the heat exchanger for aerospace is required to have the characteristics of small size, light weight, high compactness, high heat transfer efficiency and the like.
The fixed tube-sheet heat exchanger transfers the heat of the hot fluid to the cold fluid through the heat exchange tube. The main structural components include: the heat exchange tube bank, the tube plate, the baffle plate, the heat exchanger shell and the cold and hot side inlet and outlet connecting tubes. The heat exchange tube adopts a fine round tube with strong pressure resistance, and the inlet and the outlet of the tube bank are fixed on the tube plate. The inside and outside of the tube are respectively provided with two kinds of heat exchange fluid, and in order to strengthen the heat exchange capacity of the outside of the tube, baffle plates with various geometric shapes such as a semicircular shape or a spiral shape are often arranged between the tube plates. The shell and the tube box of the heat exchanger are provided with inlets and outlets for cold and hot fluids, wherein one fluid enters the heat exchange tube from the inlet of the tube box, the other fluid enters the inner cavity of the cylinder body from the inlet of the shell of the heat exchange core body, and the fluid in the heat exchange tube and the fluid in the inner cavity of the cylinder body transfer heat through the wall surface of the heat exchange tube. The fixed tube-plate heat exchanger has the characteristics of strong pressure resistance, high compactness and the like, so the fixed tube-plate heat exchanger is quite widely applied. However, when the fixed tube-sheet heat exchanger made of stainless steel is used for cooling ultra-high-temperature gas, the high-temperature gas enters the heat exchanger through the gas inlet, and firstly, heat is transferred to the gas inlet section, so that the temperature of the wall surface of the gas inlet section and the temperature of the gas inlet flange are too high, even exceeds the temperature resistance level of common stainless steel, and the hidden danger of high-temperature failure of the flange surface exists.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the ultrahigh-temperature air-fuel heat exchanger with the self-cooling interlayer, a cooling interlayer shell, a heat exchanger body shell and an air inlet flange are used for enclosing to form a closed cooling interlayer cavity, an additional flow channel is provided for low-temperature fuel oil, so that the low-temperature fuel oil can also participate in heat exchange at an air inlet section, the heat exchange efficiency is improved, the wall surface of the heat exchanger is cooled on the premise of not introducing the additional low-temperature fuel oil, and the air inlet flange is protected from failure due to overhigh temperature.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides an ultra-high temperature air fuel heat exchanger with independently cool off intermediate layer which characterized in that: the heat exchanger comprises a heat exchanger body and a cooling interlayer shell, wherein the heat exchanger body comprises an air inlet section, a heat exchange section and an air outlet section which are sequentially connected, the free end of the air inlet section is connected with an air inlet flange, one end of the heat exchange section, which is close to the air outlet section, is provided with an oil inlet, one end of the heat exchange section, which is close to the air inlet section, is provided with a first oil outlet, and the oil inlet is communicated with the first oil outlet through a heat exchange cavity;
the cooling interlayer shell is sleeved on the outer walls of the air inlet section and the heat exchange section, the cooling interlayer shell, the heat exchanger body shell and the air inlet flange are enclosed to form a closed cooling interlayer cavity, a second oil outlet is formed in the cooling interlayer shell, the second oil outlet is close to the air inlet flange, and the cooling interlayer cavity is communicated with the heat exchange cavity through the first oil outlet and is communicated with the outside through the second oil outlet.
Furthermore, one end of the cooling interlayer shell is connected with the outer wall of the shell of the heat exchange section, and the other end of the cooling interlayer shell is connected with the wall surface of the air inlet flange; a plurality of baffling baffles are arranged in the cooling interlayer cavity, and a flow channel of the cooling interlayer cavity is in a shape like a Chinese character 'hui' or a spiral shape.
Furthermore, three deflection baffles with notches are arranged between the cooling interlayer cavity and the shell of the heat exchanger body, so that low-temperature fuel forms a first interlayer flow channel, a second interlayer flow channel, a third interlayer flow channel and a fourth interlayer flow channel which flow in a reciprocating manner in the cooling interlayer cavity, each deflection baffle is provided with three notches, and the three notches are arranged on the deflection plates to ensure that the deflection plates are connected with the shell to have better rigidity.
The air inlet section comprises a straight pipe and a connecting pipe, two ends of the connecting pipe are respectively connected with the heat exchange section and the straight pipe, the free end of the straight pipe is connected with the air inlet flange, and the diameter of the end, connected with the straight pipe, of the connecting pipe is smaller than that of the end connected with the heat exchange section.
Further, the oil inlet sets up in the lower left corner of heat transfer section, and first oil-out sets up the upper right corner at the heat transfer section, the head end of second intermediate layer runner is through first oil-out and heat transfer chamber intercommunication, and the tail end of second intermediate layer runner is located the lower right corner of heat transfer section, the head end of third intermediate layer runner is located the lower left corner and the second intermediate layer runner intercommunication of connecting pipe, and the tail end is located the upper right corner of connecting pipe, the head end of first intermediate layer runner is located the upper left corner and the third intermediate layer runner intercommunication of straight tube, and the tail end is located the lower right corner of straight tube.
Furthermore, the first interlayer flow channel is communicated with the second oil outlet through a fourth interlayer flow channel, and the fourth interlayer flow channel is formed by enclosing the outer wall of the straight pipe, the wall surface of the air inlet flange and the cooling interlayer shell;
the head end of the fourth interlayer flow channel is positioned at the lower right corner of the straight pipe and communicated with the first interlayer flow channel, the tail end of the fourth interlayer flow channel is positioned at the upper right corner of the straight pipe, the second oil outlet is arranged on the cooling interlayer shell of the straight pipe section and positioned on the left side of the tail end of the fourth interlayer flow channel, a transverse baffling flow channel can be formed, and low-temperature fuel oil is enabled to be in contact with the air inlet flange for heat exchange more fully.
Furthermore, the air inlet section, the heat exchange section and the air outlet section are all in welded connection, one end of the cooling interlayer shell is welded on the outer wall of the shell of the heat exchange section, and the other end of the cooling interlayer shell is welded with the wall surface of the air inlet flange.
Furthermore, the heat exchange section comprises a shell, two heat exchange tubes, two tube plates and two baffle plates, the two tube plates are vertically arranged at the left end and the right end of the heat exchange cavity respectively and separate the heat exchange cavity from the air inlet section and the air outlet section, the baffle plates are semicircular, a plurality of baffle plates are uniformly arranged between the tube plates, the heat exchange tubes are fine round tubes with stronger pressure resistance, the heat exchange tubes are horizontally arranged between the two tube plates, and the air inlet section is communicated with the air outlet section through the heat exchange tubes.
Furthermore, the heat exchange tubes are arranged in a fork row arrangement mode, the oil inlets are connected with the oil inlet flanges through the oil inlet tubes, the second oil outlets are connected with the oil outlet flanges through the oil outlet tubes, and the free ends of the air outlet ends are connected with the air outlet flanges.
Furthermore, the inner diameter of the air inlet section is larger than that of the air outlet section, so that the heat exchange time of high-temperature gas in the heat exchange tube is prolonged, and the heat exchange efficiency is improved.
The working principle of the ultrahigh-temperature air-fuel oil heat exchanger with the automatic cooling interlayer is as follows: the low-temperature fuel oil enters the heat exchange cavity from the oil inlet, flows into the cooling interlayer cavity from the first oil outlet and then flows out from the second oil outlet, the low-temperature fuel oil in the cooling interlayer cavity forms a cooling interlayer, the air inlet flange is connected with the high-temperature gas channel, when the high-temperature gas enters the heat exchanger, heat transfer is firstly carried out between the air inlet section and the cooling interlayer, the baffling baffle arranged in the cooling interlayer cavity forms a plurality of interlayer flow channels, the heat exchange efficiency of the cooling interlayer is improved through the interlayer flow channels, the transverse baffling flow channel at the oil outlet forms the zigzag impact, the heat exchange between the low-temperature fuel oil and the air inlet flange is more sufficient, the wall surface cooling of the heat exchanger is realized on the premise that extra low-temperature fuel oil is not introduced, and the air inlet flange is protected from being invalid due to overhigh temperature.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The heat exchange area is not only the heat exchange tube in the heat exchange cavity, but also comprises the air inlet section of the heat exchanger, so that the heat exchange efficiency is improved, the cooling requirement of low-flow 1600K ultrahigh-temperature air is met, 1600K high-temperature air can be cooled to be below 350K, meanwhile, the wall surface of the heat exchanger can be cooled by the heat exchanger on the premise of not introducing extra low-temperature fuel oil, the failure of an air inlet flange due to overhigh temperature is avoided, and the heat exchange of single-strand fuel oil and high-temperature air and the cooling of a shell are realized.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic representation of a three-dimensional model of the present invention;
FIG. 2 is a schematic three-dimensional front cross-sectional view of the present invention;
FIG. 3 is a schematic view of the cooling flow path of the cooling sandwich chamber of the present invention;
FIG. 4 is a schematic view of the lateral baffling flow path of the outlet of the present invention;
FIG. 5 is a block diagram of an embodiment of the present invention.
In the figure: 1. an air inlet flange; 2. cooling the interlayer chamber; 3. a straight pipe; 4. cooling the sandwich shell; 5. an air intake section; 6. a connecting pipe; 7. a heat exchange pipe; 8. a baffle plate; 9. an oil inlet flange; 10. an oil inlet pipe; 11. a tube sheet; 12. an air outlet flange; 13. an air outlet section; 14. a heat exchange section housing; 15. a baffle plate; 16. an oil outlet pipe; 17. and an oil outlet flange.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1-5, the whole ultra-high temperature air-fuel heat exchanger with the independent cooling interlayer in the embodiment comprises a heat exchanger body and a cooling interlayer shell 4, wherein the heat exchanger body comprises an air inlet section 5, a heat exchange section and an air outlet section 13 which are sequentially connected, the air inlet section 5 comprises a straight pipe 3 and a connecting pipe 6, two ends of the connecting pipe 6 are respectively connected with the heat exchange section and the straight pipe 3, the diameter of the end of the connecting pipe 6 connected with the straight pipe 3 is smaller than that of the end connected with the heat exchange section, the free end of the straight pipe 3 is connected with an air inlet flange 1, the free end of the air outlet section 13 is connected with an air outlet flange 12, and the heat exchanger body is connected with other upstream and downstream equipment through the air inlet flange 1 and the air outlet flange 12. The heat exchanger and the flange can be made of stainless steel.
The heat exchange section comprises a heat exchange section shell, tube plates 11, heat exchange tubes 7 and baffle plates 8, the tube plates 11 are vertically arranged at two ends of a heat exchange cavity, the tube plates 11 are circular, the diameter of the tube plates 11 is the same as the inner diameter of the heat exchange cavity, and the tube plates 11 at two ends separate the heat exchange cavity from the air inlet section 5 and the air outlet section 13. The heat exchange tubes 7 are a plurality of fine round tubes with strong pressure resistance, the two ends of the heat exchange tubes 7 arranged in the heat exchange cavity are respectively fixed on the tube plate 11 in a staggered arrangement form to form tube bundles, and round holes matched with the heat exchange tubes 7 are arranged on the tube plate 11. During heat exchange, high-temperature air moves to the air outlet section 13 from the air inlet section 5 through the heat exchange tube 7, the inner diameter of the air inlet section 5 is larger than that of the air outlet section 13, the retention time of high-temperature gas in the heat exchange tube 7 is prolonged, the heat exchange of the high-temperature gas in the heat exchange section is more sufficient, and the heat exchange efficiency is improved.
An oil inlet is formed in the lower left corner of the heat exchange section, a first oil outlet is formed in the upper right corner of the heat exchange section, the oil inlet is communicated with the first oil outlet through a heat exchange cavity, the oil inlet is connected with an oil inlet flange 9 through an oil inlet pipe 10, and during heat exchange, low-temperature fuel oil flows into the heat exchange cavity from the oil inlet and flows out of the heat exchange cavity from the first oil outlet. The baffling board 8 is a plurality of semicircular baffle, and baffling board 8 uniform mount is fixed between the tube sheet 11 at heat transfer chamber both ends, and baffling board 8 not only can change the flow direction of low temperature fuel in the heat transfer chamber, prolongs the flow path of low temperature fuel in the heat transfer chamber, improves heat exchange efficiency, can also support the tube bank simultaneously, improves the stability of tube bank.
The cooling interlayer shell 4 is sleeved on the outer walls of the air inlet section 5 and the heat exchange section, one end of the cooling interlayer shell 4 is connected with the outer wall of the shell 14 of the heat exchange section, the other end of the cooling interlayer shell is connected with the wall surface of the air inlet flange 1, and the cooling interlayer shell 4, the heat exchanger body shell and the air inlet flange 1 are enclosed to form a closed cooling interlayer cavity 2. And a second oil outlet is formed in the cooling interlayer shell 4, is close to the air inlet flange 1 and is connected with an oil outlet flange 17 through an oil outlet pipe 16. The cooling interlayer cavity 2 is communicated with the heat exchange cavity through a first oil outlet and is communicated with the outside through a second oil outlet, low-temperature fuel oil leaving from the heat exchange cavity flows into the cooling interlayer cavity 2 through the first oil outlet and then flows out through the second oil outlet, and the low-temperature fuel oil in the cooling interlayer cavity 2 forms a cooling interlayer.
Cooling intermediate layer hoop has wrapped up section 5 outer walls of admitting air and with inlet flange 1 direct contact, the high-temperature gas that gets into from the air inlet at first carries out heat transfer with inlet flange 1 and the 5 walls of section of admitting air, inlet flange 1 and the 5 walls of section of admitting air are with heat transfer for cooling intermediate layer again, high-temperature gas and cooling intermediate layer heat transfer have been accomplished, guarantee that inlet flange 1 and the 5 walls of section of admitting air temperature is not higher than 450K, realized not introducing the cooling of heat exchanger self wall under the prerequisite of extra fuel, guarantee that inlet flange 1 can not become invalid because of the overtemperature.
Be equipped with a plurality of baffling baffles 15 in the cooling intermediate layer cavity 2 and form a plurality of intermediate layer runners, cooling intermediate layer cavity 2 includes the first intermediate layer runner that corresponds with section 5 that admits air, the second intermediate layer runner that corresponds with the heat transfer section, the third intermediate layer runner that corresponds with connecting pipe 6, the fourth intermediate layer passageway with second oil-out intercommunication, the fourth intermediate layer runner is enclosed by straight tube 3 outer wall, the wall of air inlet flange 1, cooling intermediate layer casing 4 and closes and form.
The head end of the second interlayer flow channel is communicated with the heat exchange cavity through a first oil outlet, the tail end of the second interlayer flow channel is positioned at the lower right corner of the heat exchange section, the head end of the third interlayer flow channel is positioned at the lower left corner of the connecting pipe 6 and is communicated with the second interlayer flow channel, the tail end of the third interlayer flow channel is positioned at the upper right corner of the connecting pipe 6, the head end of the first interlayer flow channel is positioned at the upper left corner of the straight pipe 3 and is communicated with the third interlayer flow channel, the tail end of the first interlayer flow channel is positioned at the lower right corner of the straight pipe 3 and is communicated with the first interlayer flow channel, the tail end of the fourth interlayer flow channel is positioned at the upper right corner of the straight pipe 3, the second oil outlet is arranged on the straight pipe section cooling interlayer shell 4, and the second oil outlet is positioned at the left side of the tail end of the fourth interlayer flow channel, so that a transverse baffling flow channel can be formed, and the low-temperature fuel oil is contacted with the air inlet flange for heat exchange more fully;
a low-temperature fuel oil flow channel in the cooling interlayer cavity 2 is shown in fig. 3, wherein (i) fuel oil flowing through the heat exchange tube 7 in the heat exchange cavity is shown, and the fuel oil flows into the cooling interlayer cavity 2 through the first oil outlet; secondly, expressing the flowing process of low-temperature fuel in a second interlayer flow channel; fourthly, a fifth step and a sixth step represent the flowing process of the low-temperature fuel in the third interlayer flow passage; seventhly, the flow process of the low-temperature fuel oil in the first interlayer flow channel is represented; ninthly, representing the flowing process of low-temperature fuel in the fourth interlayer flow channel; and (r) indicates that the low-temperature fuel transversely baffls and then flows out of the heat exchanger through the oil outlet pipe 16 of the second oil outlet.
The low-temperature fuel oil in the fourth interlayer runner directly contacts with the air inlet flange 1, so that the low-temperature fuel oil is more fully contacted with the root of the air inlet flange 1, the heat exchange is more efficient, and the heat exchange between the low-temperature fuel oil and the air inlet flange 1 is more fully realized.
When the heat exchanger works, low-temperature fuel oil firstly flows into the heat exchange cavity from the oil inlet pipe 10 through the oil inlet, then flows into the cooling interlayer cavity 2 through the first oil outlet, the low-temperature fuel oil in the cooling interlayer cavity 2 sequentially flows through the second interlayer flow channel, the third interlayer flow channel, the first interlayer flow channel and the fourth interlayer flow channel, and then flows out through the oil outlet pipe 16 of the second oil outlet, the low-temperature fuel oil in the cooling interlayer cavity 2 forms a cooling interlayer, the air inlet flange 1 is connected with the high-temperature gas channel, 1600K high-temperature gas firstly carries out heat transfer between the air inlet section 5 and the cooling interlayer when entering the heat exchanger, and the wall temperature of the air inlet flange 1 and the air inlet section 5 is not higher than 450K.
The cooling interlayer arranged in the invention realizes the cooling of the wall surface of the heat exchanger in the earlier stage without introducing extra fuel oil, ensures that the air inlet flange 1 cannot lose effectiveness due to overtemperature, high-temperature gas enters the heat exchange tube 7 after primary heat exchange is carried out between the air inlet section 5 and the cooling interlayer, the high-temperature gas in the heat exchange tube 7 fully exchanges heat with low-temperature fuel oil in a heat exchange cavity through the wall of the heat exchange tube 7, and finally the gas cooled to 350K is discharged from the air outlet section 13. The heat exchanger of the embodiment has the characteristics of high efficiency and low resistance: experiments prove that the heat transfer efficiency of the heat exchanger reaches 0.87; and the high temperature air side flow resistance was about 0.48%.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides an ultra-high temperature air fuel heat exchanger with independently cool off intermediate layer which characterized in that: the heat exchanger comprises a heat exchanger body and a cooling interlayer shell (4), wherein the heat exchanger body comprises an air inlet section (5), a heat exchange section and an air outlet section (13) which are sequentially connected, the free end of the air inlet section (5) is connected with an air inlet flange (1), one end, close to the air outlet section (13), of the heat exchange section is provided with an oil inlet, one end, close to the air inlet section (5), of the heat exchange section is provided with a first oil outlet, and the oil inlet is communicated with the first oil outlet through a heat exchange cavity;
the cooling interlayer shell (4) is sleeved on the outer walls of the air inlet section (5) and the heat exchange section, the cooling interlayer shell (4), the heat exchanger body shell and the wall surface of the air inlet flange (1) are enclosed to form a closed cooling interlayer cavity (2), a second oil outlet is formed in the cooling interlayer shell (4), the second oil outlet is close to the air inlet flange (1) and is arranged, and the cooling interlayer cavity (2) is communicated with the heat exchange cavity through the first oil outlet and is communicated with the outside through the second oil outlet.
2. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 1, wherein: one end of the cooling interlayer shell (4) is connected with the outer wall of the shell (14) of the heat exchange section, and the other end of the cooling interlayer shell is connected with the wall surface of the air inlet flange (1); a plurality of baffling baffles (15) are arranged in the cooling interlayer cavity (2), and a flow channel of the cooling interlayer cavity (2) is in a shape like a Chinese character 'hui' or a spiral shape.
3. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 1, wherein: three baffling baffles (15) with notches are arranged between the cooling interlayer chamber (2) and the heat exchanger body shell, so that low-temperature fuel forms a first interlayer flow channel, a second interlayer flow channel, a third interlayer flow channel and a fourth interlayer flow channel which flow in a reciprocating mode in the cooling interlayer chamber (2), and each baffling baffle (15) is provided with three notches.
4. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 3, wherein: the air inlet section (5) comprises a straight pipe (3) and a connecting pipe (6), the two ends of the connecting pipe (6) are respectively connected with the heat exchange section and the straight pipe (3), the free end of the straight pipe (3) is connected with the air inlet flange (1), and the diameter of the end, connected with the straight pipe (3), of the connecting pipe (6) is smaller than that of the end connected with the heat exchange section.
5. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 4, wherein: the oil inlet sets up in the lower left corner of heat transfer section, and first oil-out sets up the upper right corner at the heat transfer section, the tail end of second intermediate layer runner is located the lower right corner of heat transfer section, the head end of third intermediate layer runner is located the lower left corner of connecting pipe (6), and the tail end is located the upper right corner of connecting pipe (6), the head end of first intermediate layer runner is located the upper left corner of straight tube (3), and the tail end is located the lower right corner of straight tube (3).
6. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 5, wherein: the first interlayer flow channel is communicated with the second oil outlet through a fourth interlayer flow channel, and the fourth interlayer flow channel is formed by enclosing the outer wall of the straight pipe (3), the wall surface of the air inlet flange (1) and the cooling interlayer shell (4);
the head end of the fourth interlayer flow channel is located at the lower right corner of the straight pipe (3), the tail end of the fourth interlayer flow channel is located at the upper right corner of the straight pipe (3), and the second oil outlet is formed in the cooling interlayer shell (4) of the straight pipe section and located on the left side of the tail end of the fourth interlayer flow channel.
7. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 1, wherein: the air inlet section (5), the heat exchange section and the air outlet section (13) are all in welded connection, one end of the cooling interlayer shell (4) is welded to the outer wall of the heat exchange section shell, and the other end of the cooling interlayer shell is in welded connection with the wall surface of the air inlet flange (1).
8. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 1, wherein: the heat exchange section comprises a shell, two heat exchange tubes (7) and two tube plates (11), the two tube plates (11) are vertically arranged at the left end and the right end of the heat exchange cavity respectively, the heat exchange tubes (7) are a plurality of, and the heat exchange tubes (7) are horizontally arranged between the two tube plates (11).
9. The ultra-high temperature air-fuel heat exchanger with the self-cooling interlayer as claimed in claim 8, wherein: the heat exchange tubes (7) are arranged in a staggered arrangement mode, the oil inlets are connected with an oil inlet flange (9) through oil inlet tubes (10), the second oil outlets are connected with an oil outlet flange (17) through oil outlet tubes (16), and the free ends of the air outlet ends are connected with an air outlet flange (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209701.2A CN114060850A (en) | 2021-10-18 | 2021-10-18 | Ultra-high temperature air fuel heat exchanger with independent cooling interlayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209701.2A CN114060850A (en) | 2021-10-18 | 2021-10-18 | Ultra-high temperature air fuel heat exchanger with independent cooling interlayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114060850A true CN114060850A (en) | 2022-02-18 |
Family
ID=80234946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111209701.2A Pending CN114060850A (en) | 2021-10-18 | 2021-10-18 | Ultra-high temperature air fuel heat exchanger with independent cooling interlayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114060850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572962A (en) * | 2022-10-10 | 2023-01-06 | 松山湖材料实验室 | CVD equipment of curved surface chamber coating film |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713408Y (en) * | 2004-07-23 | 2005-07-27 | 陈津河 | A heat exchanger |
| JP2007085331A (en) * | 2005-08-24 | 2007-04-05 | Toyota Motor Corp | Exhaust recirculation gas cooling device |
| CN101896787A (en) * | 2007-12-12 | 2010-11-24 | Gea机械冷却技术有限公司 | Exhaust gas recirculation cooling element for an internal combustion engine |
| CN203940772U (en) * | 2014-07-18 | 2014-11-12 | 成都克密斯机械制造有限公司 | Tube sheet and housing entirety cooling system mechanism for a kind of shell-and-tube air preheater |
| CN104457338A (en) * | 2014-11-27 | 2015-03-25 | 哈尔滨锅炉厂有限责任公司 | Heat exchanging method for horizontal type heat exchanger for steam cooling with high degree of superheat |
| CN105509514A (en) * | 2015-12-11 | 2016-04-20 | 江苏海事职业技术学院 | Fin tube type gas-liquid heat exchanger |
| CN207662236U (en) * | 2017-09-20 | 2018-07-27 | 北京澳柯清洁煤气工程技术有限公司 | There is sub-cooled to protect the shell-and-tube heat exchanger of the high warm tube plate of tube type heat exchangers side by side |
| CN211854994U (en) * | 2020-01-19 | 2020-11-03 | 浙江杭真能源科技股份有限公司 | Cooler for ultra-high temperature gas |
| CN111879154A (en) * | 2020-08-31 | 2020-11-03 | 安徽科达洁能股份有限公司 | Double-compensation heat exchanger and heat exchange method thereof |
-
2021
- 2021-10-18 CN CN202111209701.2A patent/CN114060850A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713408Y (en) * | 2004-07-23 | 2005-07-27 | 陈津河 | A heat exchanger |
| JP2007085331A (en) * | 2005-08-24 | 2007-04-05 | Toyota Motor Corp | Exhaust recirculation gas cooling device |
| CN101896787A (en) * | 2007-12-12 | 2010-11-24 | Gea机械冷却技术有限公司 | Exhaust gas recirculation cooling element for an internal combustion engine |
| CN203940772U (en) * | 2014-07-18 | 2014-11-12 | 成都克密斯机械制造有限公司 | Tube sheet and housing entirety cooling system mechanism for a kind of shell-and-tube air preheater |
| CN104457338A (en) * | 2014-11-27 | 2015-03-25 | 哈尔滨锅炉厂有限责任公司 | Heat exchanging method for horizontal type heat exchanger for steam cooling with high degree of superheat |
| CN105509514A (en) * | 2015-12-11 | 2016-04-20 | 江苏海事职业技术学院 | Fin tube type gas-liquid heat exchanger |
| CN207662236U (en) * | 2017-09-20 | 2018-07-27 | 北京澳柯清洁煤气工程技术有限公司 | There is sub-cooled to protect the shell-and-tube heat exchanger of the high warm tube plate of tube type heat exchangers side by side |
| CN211854994U (en) * | 2020-01-19 | 2020-11-03 | 浙江杭真能源科技股份有限公司 | Cooler for ultra-high temperature gas |
| CN111879154A (en) * | 2020-08-31 | 2020-11-03 | 安徽科达洁能股份有限公司 | Double-compensation heat exchanger and heat exchange method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李卫平，刘慧丛, 北京航空航天大学出版社 * |
| 袁立公等: "超临界压力下航空煤油RP-3壁面结焦特性对换热的影响", 《航空动力学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572962A (en) * | 2022-10-10 | 2023-01-06 | 松山湖材料实验室 | CVD equipment of curved surface chamber coating film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110779373B (en) | Water-cooled tube plate heat exchanger | |
| CN204806941U (en) | Heat exchanger | |
| CN101435668A (en) | Internal and external fin flat tube heat exchanger | |
| CN114060850A (en) | Ultra-high temperature air fuel heat exchanger with independent cooling interlayer | |
| CN111457763A (en) | Capillary heat exchanger for cooling variable-property fluid | |
| CN107504850A (en) | A kind of heteromorphic tube type heat exchanger | |
| CN209310565U (en) | A kind of spiral shell-and-tube exchanger | |
| CN207540401U (en) | A kind of incorgruous finned tube baffling shell-and-tube heat exchanger | |
| CN216815124U (en) | Heat exchanger and gas heating water heater | |
| CN110779371B (en) | Water-cooling tube-plate heat exchanger with optimally distributed fluid inlet and outlet | |
| CN212458050U (en) | Soaking cold plate heat exchanger | |
| CN212274702U (en) | Capillary heat exchanger for cooling variable-property fluid | |
| CN110793370B (en) | Design method of water-cooled tube plate heat exchanger | |
| CN210512743U (en) | Novel explosion-proof heat exchanger | |
| CN219474358U (en) | Double-gas-path tube type heat exchanger | |
| CN211291123U (en) | Heat exchanger with flow guiding function | |
| CN216523265U (en) | High-efficiency heat exchanger | |
| CN212253810U (en) | Distilled water cooler for ship storage battery water cooling system | |
| CN221259587U (en) | Double-deck refrigerated shell and tube cooling device | |
| CN204006819U (en) | Horizontal compact shell-and-tube cooler | |
| CN221036955U (en) | Star-shaped heat exchanger | |
| CN215003063U (en) | Shell pipe water storage type heat exchanger | |
| CN221099436U (en) | Heat exchanger | |
| CN218034563U (en) | Heat exchanger suitable for multimedium, multiple temperature | |
| CN217330802U (en) | Compact heat exchanger with three heat exchange media on shell side |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220218 |
|
| RJ01 | Rejection of invention patent application after publication |