CN211346457U - Plate-fin heat exchanger core structure - Google Patents
Plate-fin heat exchanger core structure Download PDFInfo
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- CN211346457U CN211346457U CN201922387653.0U CN201922387653U CN211346457U CN 211346457 U CN211346457 U CN 211346457U CN 201922387653 U CN201922387653 U CN 201922387653U CN 211346457 U CN211346457 U CN 211346457U
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- heat exchanger
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- fins
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- exchanger core
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Abstract
The utility model provides a plate fin heat exchanger core structure, including the heat exchanger core, the heat exchanger core is a plurality of layers of hot passageway and a plurality of layers of cold passageway carry out the pile up cross flow and arrange and press from both sides the dress by the apron and braze and form, and hot passageway presss from both sides the dress one deck hot edge passageway heat transfer fin and is sealed by hot edge passageway strip of paper used for sealing for two-layer baffle, and cold edge passageway heat transfer fin is pressed from both sides and adorned and is sealed by cold edge passageway strip of paper used for sealing for two-layer baffle to cold passageway, the shape of cold edge passageway strip of paper used for sealing and hot edge passageway strip of paper used for sealing is the rectangular form strip of paper used for sealing body, and the square is personally submitted to the transversal of strip of paper used for sealing body, and the V-arrangement groove has all. Through the utility model discloses to solve the strip of paper used for sealing of plate fin heat exchanger after the brazing, in the heat exchanger working process, the thermal stress that strip of paper used for sealing self structure produced can produce the problem of certain harm to the heat exchanger.
Description
Technical Field
The utility model relates to a heat exchanger core, concretely relates to plate-fin heat exchanger core structure.
Background
The plate-fin heat exchanger as a high-efficiency compact heat exchange device has the characteristics of small volume, high heat transfer efficiency and light weight, is widely applied to the fields of petrochemical industry, energy power, metallurgy, refrigeration and other industries, and is one of the most advanced heat exchange devices at present. Due to the heat exchange characteristics of the cross-flow aluminum plate-fin heat exchanger, the cross-flow aluminum plate-fin heat exchanger is often applied to air-cooled heat exchange equipment in various industrial fields, such as a surface cooler in a refrigeration system, an air cooler in the oil refining industry, an oil cooler of engineering machinery, an oil cooler of a compressor, an inter-cooler, an after-cooler and the like, the cross-flow plate-fin heat exchanger often works in a cold and hot alternative working environment, the difference of structural deformation of the plate-fin heat exchanger caused by the difference of temperature further generates thermal stress, the heat exchanger is fatigued and fails due to the periodic change of the thermal stress, and the industrial production efficiency and the personnel safety are seriously affected.
The plate-fin heat exchanger is mainly formed by different stacking and proper arrangement of partition plates and fins and brazing by using sealing strips. Compared with a partition plate with the thickness of 0.8 mm-1.2 mm and thinner fins, the thickness of the seal strip is often multiple times or even tens of times of the thickness of the partition plate, the welding length of the heat exchanger is very long, so that the seal strip has relatively large rigidity, the deformation difference of the seal strip is very large along with the temperature difference in practical application, and further, large thermal stress is caused. Therefore, the quality and structure of the sealing strip of the aluminum plate-fin heat exchanger directly affect the safe and reliable operation of the heat exchanger equipment, and the structure of the sealing strip is particularly important for the firmness, reliability, heat exchange effect and service life of the heat exchanger.
In the prior art, after brazing a seal of a plate-fin heat exchanger, in the working process of the heat exchanger, thermal stress generated by the structure of the seal can cause certain damage to the heat exchanger, and severe people can cause the heat exchanger to be torn or the heat exchanger to leak and expand; thereby reducing the heat dissipation effect of the heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model provides a plate fin heat exchanger core structure to the strip of paper used for sealing of solving the plate fin heat exchanger that prior art exists is through the brazing back, in the heat exchanger working process, the thermal stress that strip of paper used for sealing self structure produced can produce the problem of certain harm to the heat exchanger.
For solving the technical problem, the utility model provides a plate fin heat exchanger core structure, including the heat exchanger core, the heat exchanger core carries out the pile up cross-flow for a plurality of layers of hot passageway and a plurality of layers of cold passageway and arranges and press from both sides the dress by the apron and braze and form, and hot passageway presss from both sides the dress one deck hot edge passageway heat transfer fin and is sealed by hot edge passageway strip of paper used for sealing for two-layer baffle, and cold passageway presss from both sides the dress one deck cold edge passageway heat transfer fin and is sealed by cold edge passageway strip of paper used for sealing for two-layer baffle, the shape of cold edge passageway strip of paper used for sealing and hot edge passageway strip of paper used for sealing is rectangular form strip body, the square is personally submitted to the transversal of strip of paper used for sealing body, and the V-groove has all been seted up to four sides on the strip of.
Furthermore, the cross section of the through hole is square or round.
Furthermore, the cold edge channel heat exchange fins and the hot edge channel heat exchange fins can be the same fins or different fins.
Furthermore, the heat exchange fins of the cold side channel are sawtooth fins, straight fins, triangular fins or porous fins.
Furthermore, the heat exchange fins of the hot edge channel are sawtooth fins, straight fins, triangular fins or porous fins.
Furthermore, the partition plate, the cover plate, the cold edge channel seal strip and the hot edge channel seal strip are all made of stainless steel.
Furthermore, the outermost layer channels on the two sides of the heat exchanger core are cold channels all the time.
The utility model discloses the beneficial effect who brings:
1. the utility model discloses a plate-fin heat exchanger core, the major structure of cold limit passageway strip of paper used for sealing and hot limit passageway strip of paper used for sealing are rectangular form strip of paper used for sealing body, the transversal square of personally submitting of strip of paper used for sealing body, the V-arrangement groove has all been seted up to four ascending sides of strip of paper used for sealing body length direction, and the through-hole has been seted up along length direction at strip of paper used for sealing body center. The V-shaped groove structures arranged on the cold edge channel sealing strip and the hot edge channel sealing strip not only enhance the heat dissipation effect, but also effectively reduce the thermal stress generated in the working process, avoid the thermal stress fatigue conditions such as cracking or leakage and the like when the heat exchanger works, and greatly prolong the service life of the heat exchanger using the plate-fin heat exchanger core compared with the conventional plate-fin heat exchanger.
2. The utility model discloses a strip of paper used for sealing consumptive material has been saved by a wide margin to V type groove, through-hole, and then has saved heat exchanger production consumptive material by a wide margin, has alleviateed plate-fin heat exchanger weight, has reached lightweight purpose. All can weld with the baffle on two arbitrary parallel surfaces of strip of paper used for sealing body, these are all convenient for assemble the strip of paper used for sealing on the heat exchanger.
Drawings
Fig. 1 is a front view of the plate-fin heat exchanger core of the present invention.
Fig. 2 is a side view of the plate fin heat exchanger core of the present invention.
Fig. 3 is a schematic structural view of a cold side tunnel seal and a hot side tunnel seal.
The sealing structure comprises 1-cold edge channel sealing strips, 2-partition plates, 3-cover plates, 4-cold edge channel heat exchange fins, 5-hot edge channel sealing strips, 6-hot edge channel heat exchange fins, 7-sealing strip bodies, 8-V-shaped grooves and 9-through holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the utility model provides a plate-fin heat exchanger core structure, which comprises a heat exchanger core, the heat exchanger core body is formed by stacking and cross-flow arrangement of a plurality of layers of hot channels and a plurality of layers of cold channels, and is clamped and brazed by a cover plate 3, the hot channel is formed by clamping a layer of hot edge channel heat exchange fins 6 on two layers of clapboards 2 and is sealed by a hot edge channel seal 5, the cold channel is formed by clamping a layer of cold edge channel heat exchange fins 4 on two layers of clapboards 2 and is sealed by a cold edge channel seal 1, the cold edge channel seal 1 and the hot edge channel seal 5 have the same shape, the main structures of the cold edge channel seal 1 and the hot edge channel seal 5 are strip seal bodies 7, the cross section of the seal strip body is square, V-shaped grooves 8 are formed in four side faces in the length direction of the seal strip body, and a through hole 9 is formed in the center of the seal strip body along the length direction. The cross section of the through hole 9 is square or round.
In this embodiment, the cold side channel heat exchange fins 4 and the hot side channel heat exchange fins 6 may be the same fins or different fins. The cold edge channel heat exchange fins 4 are saw-tooth fins, straight fins, triangular fins or porous fins, and similarly, the hot edge channel heat exchange fins 6 can also be saw-tooth fins, straight fins, triangular fins or porous fins. The partition plate 2, the cover plate 3, the cold edge channel seal 1 and the hot edge channel seal 5 are all made of stainless steel. And the outermost layer channels on two sides of the heat exchanger core are cold channels all the time.
The utility model discloses a plate-fin heat exchanger core, strip of paper used for sealing light in weight, it is sealed effectual to can reduce the thermal stress by a wide margin, not only can strengthen the radiating effect, effectively avoided appearing breaking or the bad situation that rises in the heat exchanger working process moreover.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A plate-fin heat exchanger core structure is characterized by comprising a heat exchanger core, wherein the heat exchanger core is formed by stacking and cross-flow arrangement of a plurality of layers of hot channels and a plurality of layers of cold channels, clamping and brazing the hot channels by a cover plate (3), the hot channels are formed by clamping and brazing two layers of clapboards (2) and clamping a layer of hot edge channel heat exchange fins (6) and sealing the hot edge channel heat exchange fins by hot edge channel seals (5), the cold channels are formed by clamping a layer of cold edge channel heat exchange fins (4) by two layers of clapboards (2) and sealing the cold edge channel heat exchange fins by cold edge channel seals (1), the cold edge channel seals (1) and the hot edge channel seals (5) are in the same shape, the main body structures of the cold edge channel seals (1) and the hot edge channel seals (5) are strip-shaped seal bodies (7), the cross sections of the seal bodies are square, and four side surfaces of the seal, the center of the seal body is provided with a through hole (9) along the length direction.
2. A plate-fin heat exchanger core structure according to claim 1, characterized in that the through-holes (9) are square or circular in cross-section.
3. A plate fin heat exchanger core structure according to claim 1, wherein the cold side channel heat exchange fins (4) and the hot side channel heat exchange fins (6) may be the same or different fins.
4. A plate-fin heat exchanger core structure according to claim 1, characterized in that the cold side channel heat exchange fins (4) are zigzag fins, straight fins, triangular fins or porous fins.
5. A plate-fin heat exchanger core structure according to claim 1, characterized in that the hot side channel heat exchange fins (6) are zigzag fins, straight fins, triangular fins or porous fins.
6. A plate-fin heat exchanger core structure according to claim 1, characterized in that the partition plates (2), the cover plates (3), the cold edge channel seals (1), and the hot edge channel seals (5) are made of stainless steel.
7. A plate fin heat exchanger core structure as claimed in claim 1, wherein the outermost channels on both sides of said heat exchanger core are always cold channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387653.0U CN211346457U (en) | 2019-12-26 | 2019-12-26 | Plate-fin heat exchanger core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387653.0U CN211346457U (en) | 2019-12-26 | 2019-12-26 | Plate-fin heat exchanger core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211346457U true CN211346457U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922387653.0U Expired - Fee Related CN211346457U (en) | 2019-12-26 | 2019-12-26 | Plate-fin heat exchanger core structure |
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| Country | Link |
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| CN (1) | CN211346457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735329A (en) * | 2020-06-28 | 2020-10-02 | 贵州永红航空机械有限责任公司 | Novel high-temperature precooler for aircraft environmental control system |
| CN116147385A (en) * | 2022-12-14 | 2023-05-23 | 无锡市耀鹏换热设备有限公司 | Staggered zigzag plate-fin heat exchanger and preparation process thereof |
-
2019
- 2019-12-26 CN CN201922387653.0U patent/CN211346457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735329A (en) * | 2020-06-28 | 2020-10-02 | 贵州永红航空机械有限责任公司 | Novel high-temperature precooler for aircraft environmental control system |
| CN116147385A (en) * | 2022-12-14 | 2023-05-23 | 无锡市耀鹏换热设备有限公司 | Staggered zigzag plate-fin heat exchanger and preparation process thereof |
| CN116147385B (en) * | 2022-12-14 | 2024-04-12 | 无锡市耀鹏换热设备有限公司 | Staggered zigzag plate-fin heat exchanger and preparation process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 Termination date: 20211226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |