CN113865403A - Fin heat exchanger - Google Patents
Fin heat exchanger Download PDFInfo
- Publication number
- CN113865403A CN113865403A CN202010623283.0A CN202010623283A CN113865403A CN 113865403 A CN113865403 A CN 113865403A CN 202010623283 A CN202010623283 A CN 202010623283A CN 113865403 A CN113865403 A CN 113865403A
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- China
- Prior art keywords
- runner
- bearing cylinder
- annular
- heat exchange
- pressure
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000013529 heat transfer fluid Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the field of heat exchange equipment, and provides a fin heat exchanger which comprises a pressure bearing cylinder, internal heat exchange fins, a runner sleeve, an inlet runner and an outlet runner; a plurality of outer fins are arranged on the outer wall of the pressure-bearing cylinder, and grooves are formed between the adjacent outer fins; the runner sleeve is sleeved outside the pressure bearing cylinder, the inner wall of the runner sleeve is attached to one side, away from the axis of the pressure bearing cylinder, of the outer fin, and two ends of the runner sleeve are fixedly connected with the pressure bearing cylinder respectively and form sealing; the internal heat exchange fins are fixedly arranged in the pressure bearing cylinder, and a fluid channel from one end inside the pressure bearing cylinder to the other end inside the pressure bearing cylinder is formed between the adjacent fins of the internal heat exchange fins; one end of the inlet channel and one end of the outlet channel are respectively communicated with the interior of the channel sleeve, and the inlet channel is communicated with the outlet channel through the groove. The fin heat exchanger provided by the invention can effectively improve the heat exchange efficiency by reducing the included angle between the fluid velocity vector and the temperature gradient.
Description
Technical Field
The invention relates to the field of heat exchange equipment, in particular to a fin heat exchanger.
Background
The heat-regenerating heat exchanger is a heat exchanger in which high-temperature fluid and low-temperature fluid alternately flow through the same runner space, and the fluid is directly contacted with regenerative filler to realize heat exchange. At present, the regenerative heat engines are commonly used in the form of plate-fin type, shell-and-tube type, etc., and can meet most production requirements.
The heat exchanger is necessary for further improving the heat exchange efficiency and the performance of a regenerative heat engine and reducing the heat exchange loss in the plate-fin heat exchanger. The commonly used improvement methods include expanding the heat transfer area or improving the heat transfer performance of the heat transfer surface, reducing the thermal resistance of the dirt layer in the heat exchange pipe, reducing the speed vector and the included angle of the temperature gradient and the like.
The performance of the regenerative heat engine is improved by changing the fluid inlet angle on the basis of not changing the heat exchanger material, the coating and the whole structure of the heat exchanger by reducing the included angle of the velocity vector and the temperature gradient. The principle of the method lies in that the synergistic relationship of the temperature field and the velocity field can affect the boundary layer flow during convection heat exchange, reduce the heat lost by fluid in the flow process and strengthen the convection heat exchange. Reducing the included angle between the fluid velocity vector and the temperature gradient is increasingly used in industrial production as one of effective means for improving heat exchange efficiency.
Disclosure of Invention
It is an object of embodiments of the present invention to provide a finned heat exchanger for improving heat exchange efficiency by reducing the included angle between the fluid velocity vector and the temperature gradient.
The embodiment of the invention provides a fin heat exchanger, which comprises a pressure bearing cylinder, internal heat exchange fins, a flow channel sleeve, an inlet flow channel and an outlet flow channel, wherein the pressure bearing cylinder is arranged on the inner side of the pressure bearing cylinder;
a plurality of outer fins are arranged on the outer wall of the pressure-bearing cylinder, and grooves are formed between the adjacent outer fins;
the runner sleeve is sleeved outside the pressure bearing cylinder, the inner wall of the runner sleeve is attached to one side, away from the axis of the pressure bearing cylinder, of the outer fin, and two ends of the runner sleeve are fixedly connected with the pressure bearing cylinder and form sealing respectively;
the internal heat exchange fins are fixedly arranged in the pressure bearing cylinder, and fluid channels from one end inside the pressure bearing cylinder to the other end inside the pressure bearing cylinder are formed between the adjacent fins of the internal heat exchange fins;
one end of the inlet runner and one end of the outlet runner are respectively communicated with the interior of the runner sleeve, and the inlet runner is communicated with the outlet runner through the groove.
Furthermore, the width direction of the fins of the internal heat exchange fins is along the radial direction of the pressure bearing cylinder, and the fins of the internal heat exchange fins are circumferentially arranged at intervals by taking the axis of the pressure bearing cylinder as a center.
Furthermore, a first annular flow passage and a second annular flow passage are arranged on the flow passage sleeve, the first annular flow passage and the second annular flow passage are annular chambers which are formed by the flow passage sleeve and protrude outwards along the radial direction, the inlet flow passage is communicated with the first annular flow passage, and the outlet flow passage is communicated with the second annular flow passage.
Further, the first annular flow passage and the second annular flow passage are respectively located at two axial ends of the flow passage sleeve.
Furthermore, the number of the first annular runners is two, the two first annular runners are respectively located at two axial ends of the runner sleeve, the inlet runner is communicated with the two first annular runners simultaneously, and the second annular runner is located between the two first annular runners.
Furthermore, the inlet runner is a three-way runner, one runner of the inlet runner is communicated with one first annular runner, and the other runner of the inlet runner is communicated with the other first annular runner.
Further, the direction of fluid flow inside the outlet flow passage is tangential to the second annular flow passage.
Further, the groove is an inclined groove which is obliquely arranged and continuously extends in the same direction or a bending groove comprising at least one bending angle.
Furthermore, the internal heat exchange fins are made of red copper or oxygen-free copper materials.
Furthermore, the pressure bearing cylinder and the outer fins are integrally formed, and the pressure bearing cylinder and the outer fins are made of stainless steel or high-temperature alloy steel materials.
According to the fin heat exchanger provided by the embodiment of the invention, the heat exchange function is realized through the heat exchange between the fluid flowing through the internal heat exchange fins and the fluid flowing through the grooves. The pressure bearing cylinder has good pressure bearing capacity, the fluid flowing through the internal heat exchange fins can adopt high-pressure gas, and the fluid channel formed between the adjacent fins of the internal heat exchange fins can realize the rapid heat exchange function; the grooves can divide the fluid between the pressure bearing cylinder and the flow channel sleeve into a plurality of strands, so that the temperature field and the velocity field of the fluid flowing between the pressure bearing cylinder and the flow channel sleeve are uniformly developed, and the included angle between the velocity vector and the temperature gradient of the fluid is reduced, thereby improving the heat exchange efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a perspective view, partially in section, of one embodiment of the present invention;
FIG. 2 is a perspective view of the embodiment of FIG. 1, partially cut away, from another perspective;
FIG. 3 is a schematic view of an end face of the embodiment of FIG. 1, partially broken away;
FIG. 4 is a perspective view, partially in section, of another embodiment of the present invention;
FIG. 5 is a top view of the embodiment of FIG. 4, partially in section;
in the figure, 1, an inlet flow channel; 2. a flow passage sleeve; 3. internal heat exchange fins; 4. a pressure-bearing cylinder; 5. an outlet flow passage; 6. a first annular flow passage; 7. a second annular flow passage; 8. an outer fin; 9. and (4) a groove.
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 of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, unless otherwise specified, "plurality", "plural groups" means two or more, and "several", "several groups" means one or more.
Referring to fig. 1, there is shown a schematic structural view of an embodiment of the present invention, in which the flow passage sleeve 2, the first annular flow passage 6 and the second annular flow passage 7 are partially sectioned for clarity of the internal structure. The finned heat exchanger provided by the embodiment comprises a pressure bearing cylinder 4, internal heat exchange fins 3, a flow channel sleeve 2, an inlet flow channel 1 and an outlet flow channel 5.
The pressure-bearing cylinder 4 is a cylindrical rigid structure with two open ends, and two ends of the pressure-bearing cylinder are respectively provided with a connecting structure for connecting with a heat engine, wherein the connecting structure can be, but is not limited to, a thread. The inner side and the outer side of the pressure bearing cylinder 4 respectively realize the heat exchange function through fluids with different temperatures.
The outer wall of the pressure bearing cylinder 4 is provided with a plurality of outer fins 8, the outer fins 8 protrude out of the surface of the pressure bearing cylinder 4, and grooves 9 are formed between adjacent outer fins 8. The channel 9 can be used for the passage of a fluid.
On the outer wall of the pressure-bearing cylinder 4, a plurality of outer fins 8 are uniformly arranged at intervals along the circumferential direction of the pressure-bearing cylinder 4 to form a plurality of grooves 9 with the same size.
The runner sleeve 2 is a cylindrical sleeve structure with the inner diameter larger than the outer diameter of the pressure bearing cylinder 4, the runner sleeve 2 is sleeved outside the pressure bearing cylinder 4, the inner wall of the runner sleeve 2 is attached to one end, deviating from the axis of the pressure bearing cylinder 4, of the outer fin 8, and a fluid channel along the groove 9 is formed among the runner sleeve 2, the two adjacent outer fins 8 and the pressure bearing cylinder 4 in a surrounding mode.
Two ends of the runner sleeve 2 are respectively fixedly connected with the pressure-bearing cylinder 4 and form sealing, so that the runner sleeve 2 cannot be separated from the pressure-bearing cylinder 4, and fluid cannot flow out from two ends of the runner sleeve 2 along the radial direction. The connection mode between the runner sleeve 2 and the pressure-bearing cylinder 4 can be one of welding, fixed connection through a sealing connecting piece or any other sealing connection modes.
The internal heat exchange fins 3 are provided with a plurality of fins, and the fins on the internal heat exchange fins 3 are respectively fixedly connected with the inner wall of the pressure bearing cylinder 4, so that the internal heat exchange fins 3 are integrally fixed in the pressure bearing cylinder 4, and the fins on the internal heat exchange fins 3 and the inner wall of the pressure bearing cylinder 4 can be fixed by welding.
Fluid channels from one end inside the pressure-bearing cylinder 4 to the other end inside the pressure-bearing cylinder 4 are formed between adjacent fins of the internal heat exchange fins 3, and when fluid passes through the fluid channels, heat exchange between the fluid and the internal heat exchange fins 3, between the fluid and the pressure-bearing cylinder 4 and between the internal heat exchange fins 3 and the pressure-bearing cylinder 4 can be realized. The internal heat exchange fins 3 can separate a plurality of fluid channels, increase the heat exchange area and improve the heat exchange efficiency.
One end of the inlet flow path 1 and one end of the outlet flow path 5 are respectively communicated with the inside of the flow path sleeve 2, and the inlet flow path 1 is communicated with the outlet flow path 5 via the groove 9. The inlet flow channel 1 is used for inflow of fluid outside the pressure-bearing cylinder 4, the outlet flow channel 5 is used for outflow of fluid outside the pressure-bearing cylinder 4, and when the fluid passes through the grooves 9, a heat exchange process can be completed.
In the use process, two ends of the pressure bearing cylinder 4 are respectively connected with a heat engine to supply heat to the heat engines at the two ends simultaneously, and heat transfer fluid flows into the space between the pressure bearing cylinder 4 and the runner sleeve 2 through the inlet runner 1 and flows out of the outlet runner 5 through the groove 9. When the heat transfer fluid passes through the grooves 9, the heat of the heat transfer fluid is transferred to the high-pressure gas between the internal heat exchange fins 3 through the pressure bearing cylinder 4, and after the high-pressure gas is heated, the heat and sound conversion is respectively carried out in the heat engines at the two ends, so that the energy transfer is completed.
The heat transfer fluid flowing through the grooves 9 includes, but is not limited to, water, heat transfer oil, liquid metal, molten salt or other liquid fluid, the high-pressure gas inside the pressure-bearing cylinder 4 may be, but is not limited to, helium, argon or other gas, and the gas pressure of the high-pressure gas is between 3 and 20 MPa.
Referring to fig. 2, in an embodiment of the present invention, the width direction of the fins of the inner heat exchange fins 3 is along the radial direction of the pressure-bearing cylinder 4, the fins of the inner heat exchange fins 3 are circumferentially arranged at intervals with the axis of the pressure-bearing cylinder 4 as the center, a fluid channel can be formed between every two adjacent fins of the inner heat exchange fins 3, and the fluid channels formed by the inner heat exchange fins 3 separate the high-pressure gas into a plurality of strands, so that the heat exchange efficiency can be improved. In an alternative, the length direction of the inner heat exchange fins 3 is parallel to the axial direction of the pressure-bearing cylinder 4, so that the flow of the high-pressure gas is smoother. In an alternative scheme, a through hole penetrating through the inner heat exchange fin 3 along the axial direction is formed in the axial center of the inner heat exchange fin 3, the through hole is not communicated with a fluid channel formed between two adjacent fins of the inner heat exchange fin 3, equipment can be installed in the through hole, and high-pressure gas does not enter the through hole in the using process.
In an embodiment of the present invention, the flow passage sleeve 2 is provided with a first annular flow passage 6 and a second annular flow passage 7, the first annular flow passage 6 and the second annular flow passage 7 are both annular chambers in which the flow passage sleeve 2 protrudes outward in the radial direction, both the first annular flow passage 6 and the second annular flow passage 7 are communicated with the groove 9, the inlet flow passage 1 is communicated with the first annular flow passage 6, and the outlet flow passage 5 is communicated with the second annular flow passage 7. The first annular flow channel 6 and the second annular flow channel 7 are preferably circular grooves coaxial with the flow channel sleeve 2. The fluid entering from the inlet channel 1 enters the first annular channel 6, then is dispersed into the grooves 9 by the first annular channel 6, flows into the second annular channel 7 through the grooves 9, and finally flows out from the outlet channel 5. Through setting up first annular runner 6 and second annular runner 7, can make the fluid dispersion more even, heat exchange efficiency is higher, and the produced calorific loss is less to, the heat transfer process can be carried out equally when the fluid is in first annular runner 6 and second annular runner 7.
In an embodiment of the present invention, the first annular flow passage 6 and the second annular flow passage 7 are respectively located at two axial ends of the flow passage sleeve 2, and the fluid flows in a process that the fluid in the first annular flow passage 6 flows from one end of the groove 9 to the other end of the groove 9, and then enters the second annular flow passage 7.
In another embodiment of the present invention, two first annular flow passages 6 are provided, two first annular flow passages 6 are respectively located at two axial ends of the flow passage sleeve 2, the inlet flow passage 1 is simultaneously communicated with the two first annular flow passages 6, and the second annular flow passage 7 is located between the two first annular flow passages 6. In this case, the fluid in the first annular flow passage 6 enters the groove 9 from both ends of the groove 9 at the same time, and flows toward the center of the groove 9 until it reaches a position where it is connected to the second annular flow passage 7, and flows out of the second annular flow passage 7.
When two first annular runners 6 are provided, in order to enable the fluid in the inlet runner 1 to simultaneously flow into the two first annular runners 6, the inlet runner 1 is set to be a three-way runner, one runner of the inlet runner 1 is communicated with one first annular runner 6, the other runner of the inlet runner 1 is communicated with the other first annular runner 6, and when the fluid is introduced into the inlet of the inlet runner 1, the fluid can simultaneously enter the two first annular runners 6.
Referring to fig. 3, in an embodiment of the present invention, the flow direction of the fluid inside the outlet flow channel 5 is tangential to the second annular flow channel 7, and specifically, the outlet flow channel 5 may be a straight pipe tangential to the second annular flow channel 7, or only a position on the outlet flow channel 5 connected to the second annular flow channel 7 may be a pipe tangential to the second annular flow channel 7.
The outlet flow passage 5 is arranged in the tangential direction of the fluid flow direction in the outlet flow passage 5 along the second annular flow passage 7, so that the resistance when the fluid flows out of the second annular flow passage 7 can be reduced, and the energy loss can be reduced.
In the present embodiment, the groove 9 may be a slanted groove extending continuously in the same direction or a bent groove having at least one corner.
When the grooves 9 are inclined and extend continuously in the same direction, the flow guiding direction of the grooves 9 is not parallel to the axial direction of the pressure bearing cylinder 4.
Referring to fig. 4 and 5, when two first annular flow passages 6 are provided, the groove 9 may be provided as a V-shaped groove having two non-parallel grooves, and, preferably, the corner position of the groove 9 intersects the second annular flow passage 7, thereby allowing the fluid in the groove to smoothly flow into the second annular flow passage 7.
It should be noted that the groove 9 of the V-shaped groove structure is only one of the bending groove structures including at least one break angle used for the groove 9, and other bending groove structures including at least one break angle, such as a multi-segment break line shape, may also achieve the object of the present invention, and it is within the protection scope of the present invention.
In an embodiment of the present invention, the inner heat exchange fins 3 are made of red copper or oxygen-free copper material, so that the inner heat exchange fins 3 have better thermal conductivity and improve heat exchange efficiency.
In one embodiment of the invention, the pressure-bearing cylinder 4 and the outer fins 8 are integrally formed, and the pressure-bearing cylinder 4 and the outer fins 8 are made of stainless steel or high-temperature alloy steel materials, so that the pressure-bearing cylinder 4 is prevented from being corroded by external heat transfer fluid, the pressure-bearing cylinder 4 and the outer fins 8 have good firmness, and the pressure-bearing cylinder 4 and the outer fins 8 are not deformed when bearing high pressure.
Of course, the materials of the internal heat exchange fins 3, the pressure-bearing cylinder 4 and the external fins 8 are only preferred materials, and other materials capable of meeting the use requirements are also within the protection scope of the present application.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A fin heat exchanger is characterized by comprising a pressure bearing cylinder, internal heat exchange fins, a flow channel sleeve, an inlet flow channel and an outlet flow channel;
a plurality of outer fins are arranged on the outer wall of the pressure-bearing cylinder, and grooves are formed between the adjacent outer fins;
the runner sleeve is sleeved outside the pressure bearing cylinder, the inner wall of the runner sleeve is attached to one side, away from the axis of the pressure bearing cylinder, of the outer fin, and two ends of the runner sleeve are fixedly connected with the pressure bearing cylinder and form sealing respectively;
the internal heat exchange fins are fixedly arranged in the pressure bearing cylinder, and fluid channels from one end inside the pressure bearing cylinder to the other end inside the pressure bearing cylinder are formed between the adjacent fins of the internal heat exchange fins;
one end of the inlet runner and one end of the outlet runner are respectively communicated with the interior of the runner sleeve, and the inlet runner is communicated with the outlet runner through the groove.
2. The finned heat exchanger according to claim 1, wherein the width direction of the inner heat exchange fins is along the radial direction of the pressure-bearing cylinder, and the fins of the inner heat exchange fins are circumferentially arranged at intervals around the axis of the pressure-bearing cylinder.
3. The finned heat exchanger of claim 1 wherein the runner sleeve is provided with a first annular runner and a second annular runner, both the first annular runner and the second annular runner being annular cavities in which the runner sleeve is radially outwardly convex, the inlet runner being in communication with the first annular runner, and the outlet runner being in communication with the second annular runner.
4. The finned heat exchanger of claim 3 wherein the first annular flow passage and the second annular flow passage are located at respective axial ends of the flow passage sleeve.
5. The finned heat exchanger of claim 3 wherein there are two first annular flow passages, the two first annular flow passages being located at respective axial ends of the flow passage sleeve, the inlet flow passage being in simultaneous communication with the two first annular flow passages, and the second annular flow passage being located between the two first annular flow passages.
6. The finned heat exchanger of claim 5 wherein the inlet runners are three-way runners, one of the inlet runners being in communication with one of the first annular runners and the other of the inlet runners being in communication with the other of the first annular runners.
7. The finned heat exchanger of claim 3 wherein the direction of fluid flow inside the outlet flow passage is tangential to the second annular flow passage.
8. The finned heat exchanger of claim 1, wherein the grooves are oblique grooves extending continuously in the same direction or are bent grooves including at least one corner.
9. The finned heat exchanger of claim 1 wherein the inner heat exchange fins are fabricated from a copper material that is red or oxygen free.
10. The finned heat exchanger according to claim 1, wherein the pressure-bearing cylinder is integrally formed with the outer fin, and the pressure-bearing cylinder and the outer fin are made of stainless steel or high temperature alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623283.0A CN113865403A (en) | 2020-06-30 | 2020-06-30 | Fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623283.0A CN113865403A (en) | 2020-06-30 | 2020-06-30 | Fin heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113865403A true CN113865403A (en) | 2021-12-31 |
Family
ID=78980953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010623283.0A Pending CN113865403A (en) | 2020-06-30 | 2020-06-30 | Fin heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN113865403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485216A (en) * | 2022-01-10 | 2022-05-13 | 中国科学院理化技术研究所 | Radiation fin type heat exchanger and free piston Stirling generator |
-
2020
- 2020-06-30 CN CN202010623283.0A patent/CN113865403A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485216A (en) * | 2022-01-10 | 2022-05-13 | 中国科学院理化技术研究所 | Radiation fin type heat exchanger and free piston Stirling generator |
| CN114485216B (en) * | 2022-01-10 | 2023-06-23 | 中国科学院理化技术研究所 | Radiating fin type heat exchanger and free piston Stirling generator |
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