CN210892264U - Tube sheet type evaporator and household appliance - Google Patents
Tube sheet type evaporator and household appliance Download PDFInfo
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- CN210892264U CN210892264U CN201920937824.XU CN201920937824U CN210892264U CN 210892264 U CN210892264 U CN 210892264U CN 201920937824 U CN201920937824 U CN 201920937824U CN 210892264 U CN210892264 U CN 210892264U
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Abstract
The utility model provides a tube sheet formula evaporimeter and domestic appliance, the tube sheet formula evaporimeter includes fin and pipeline, fin top-down sets gradually, the pipeline runs through the fin sets up, and is adjacent between the fin set up a plurality of archs, at least two on the lateral wall of pipeline connect in order between the arch, bellied longitudinal section is the wing section. The utility model discloses an appearance to the evaporimeter pipeline carries out the wing section design, and the area of contact of increase air and pipeline produces the air current simultaneously undulant, guarantees that near the air of the wall of pipeline lateral wall and fin has higher mobility to and guarantee that evaporimeter and air have the great difference in temperature, and heat exchange between the two is accomplished to high efficiency, realizes the intensive heat transfer effect of evaporimeter, still has the effect that reduces the air flow resistance simultaneously.
Description
Technical Field
The utility model relates to the technical field of electric appliances, particularly, relate to a tube sheet formula evaporimeter and domestic appliance.
Background
The refrigerator is a refrigeration device which keeps constant and low temperature, and the heat dissipation performance of the refrigerator affects the service life of the refrigerator. Generally, a built-in heat dissipation fan is used for sucking air in the box body through an air inlet, and meanwhile, the air flows through an evaporator to achieve heat dissipation, so that the purpose of maintaining the temperature in the box body is achieved. In order to better realize the heat exchange between the evaporator and the internal air in the prior art, the heat radiation fan and the evaporator with large power are generally replaced, but because the refrigerating capacity of the compressor is influenced by refrigerant and the volume in the box, the area of the evaporator fin is simply increased, the internal air resistance is increased, and the internal cold exchange is promoted to be very small.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem that the current heat radiation structure heat transfer effect that is used for refrigeration plant is poor.
In order to solve the problem, the utility model provides a tube sheet formula evaporimeter, including fin and pipeline, the pipeline runs through the fin sets up, and is adjacent between the fin set up a plurality of archs, at least two on the lateral wall of pipeline connect in order between the arch, bellied longitudinal section is airfoil section.
Optionally, the airfoil section includes leading edge point P, trailing edge point Q and connects leading edge point P with trailing edge point Q's profile line, leading edge point P with trailing edge point Q all locates on the lateral wall, the profile line is to keeping away from the bellied pitch arc of pipeline direction.
Optionally, the position of the highest point M on the contour line is between the leading edge point P and the trailing edge point Q.
Optionally, a relationship between a vertical distance D between a highest point M on the contour line and the outer sidewall and a vertical distance D between two adjacent rows of the pipes is as follows: d is less than or equal to D/2.
Optionally, a ratio of a vertical distance D between a highest point M on the contour line and the outer sidewall to a vertical distance D between two adjacent rows of the pipes is: D/D is 0.05-0.45.
Optionally, the duct has an inner side wall, and the angle α between a tangent at the leading point P and the inner side wall is 0-90 °.
Optionally, the angle β between the tangent at the trailing point Q and the inner sidewall is 0-90 °.
Optionally, the relationship between the distance L between the leading edge point P and the trailing edge point Q and the length L of the outer side wall of the pipeline is: l is more than or equal to L/10 and less than or equal to L.
Optionally, the pipelines are uniformly distributed on the fins in a grid manner, two adjacent rows of pipelines are staggered, and two adjacent rows of pipelines are staggered.
The utility model provides a tube sheet formula evaporimeter sets up a plurality of continuous archs that have airfoil section on the lateral wall of pipeline, guarantees that near the air of the wall of pipeline lateral wall and fin has higher mobility to guarantee that evaporimeter and air have the great difference in temperature, thereby high efficiency's completion heat exchange between the two. In addition, because the outer side wall of the pipeline is provided with the plurality of continuous protrusions which are connected in sequence, the contact area of air and the pipeline is increased, the air flow fluctuates when passing through, the air can better and more fully contact the pipeline to exchange heat, the heat transfer enhancement effect of the evaporator is realized, and the effect of reducing the air flow resistance is also realized.
The utility model also provides a household appliance, include as above arbitrary the gilled tube formula evaporimeter.
The utility model provides a domestic appliance has for prior art beneficial effect the same with the beneficial effect that above-mentioned gilled tube formula evaporimeter had, and here is no longer repeated.
Drawings
FIG. 1 is a partial structural view of a tube sheet type evaporator according to the present invention;
FIG. 2 is a front view of the tube-in-tube evaporator of FIG. 1;
FIG. 3 is a side view of the tube-in-tube evaporator of FIG. 1;
FIG. 4 is a top view of the fin-type evaporator of FIG. 1;
FIG. 5 is a top view of a single tube of FIG. 1;
fig. 6 is a sectional view of a tube sheet type evaporator according to the present invention;
FIG. 7 is a cross-sectional view of a single tube of FIG. 5;
fig. 8 is an enlarged view of fig. 6 at point i.
Description of reference numerals:
1-a fin; 2-a pipeline; 21-an outer side wall; 22-an inner side wall; 23-a bump; 24-aerofoil section; 241-contour line.
Detailed Description
The finned tube evaporator has the advantages that the fins are additionally arranged on the surface of the tube, so that the original heat transfer area is expanded, and the finned tube evaporator is widely applied to the field of refrigeration equipment. In order to improve the heat transfer efficiency of the evaporator, the evaporator is optimally designed, and the evaporator can exchange heat with the internal air better by increasing the area of the evaporator fins. However, since the cooling capacity of the compressor is affected by the refrigerant and the volume inside the tank, simply increasing the area of the evaporator fins increases the internal air resistance, and does not greatly improve the internal cooling capacity exchange. Medical refrigerator is higher to the requirement of inside temperature homogeneity than domestic refrigerator. In order to realize better heat exchange with the internal air of the evaporator and ensure the stability of the internal temperature of the medical refrigerating box, the evaporator needs to be redesigned, so that the air resistance of the evaporator is smaller and the heat exchange efficiency is higher.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In addition, the directional indications mentioned in the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Such as the upper, lower, front, rear, left, and right of the present invention, are in the direction shown in fig. 1 as the tube-sheet evaporator.
Please refer to fig. 1-7, the utility model provides a tube sheet evaporator, including fin 1 and pipeline 2, the quantity of fin 1 and pipeline 2 is a plurality ofly, pipeline 2 runs through fin 1 and sets up, as shown in fig. 1 direction, fin 1 top-down places in proper order, preferred parallel placement, according to pipeline 2 characteristic, carry out the punching press with the corresponding position of installation pipeline 2 on fin 1 in advance, form the hole of corresponding geometric shape, get rid of the material that the punching press got off, align pipeline 2 with the hole site on the fin 1, guarantee that pipeline 2 passes and reserves the hole site, embolia the reservation hole with pipeline 2, accomplish the installation. The whole structure is kept fixed by adopting a tube expansion mode. Each tube 2 is thus divided into N +1 sections by N fins 1 placed in parallel. As shown in fig. 1, the pipe 2 has an inner wall and an outer wall, the outer wall includes a front outer wall 21 and a rear outer wall 21, and a left outer wall and a right outer wall, the outer wall 21 is a vertical plane perpendicular to the fin 1, the outer walls are arc-shaped surfaces, correspondingly, the inner wall includes a front inner wall 22 and a rear inner wall 22, and a left inner wall and a right inner wall, the inner walls 22 are planes, and the inner walls are arc-shaped surfaces. A plurality of bulges 23 are arranged on the outer side wall 21 of the pipeline 2 between the adjacent fins 1, at least two bulges 23 are sequentially connected along the length direction of the pipeline 2, and the longitudinal sections of the bulges 23 are airfoil sections 24. As shown in fig. 1, the air flowing direction is from left to right, and the length direction of the duct 2 is the left-right direction shown in fig. 1. The longitudinal direction in the longitudinal section of the protrusion 23 refers to the left-right direction in fig. 1, and the longitudinal section of the protrusion 23 is a section formed by horizontally cutting the protrusion 23 in the left-right direction.
The utility model provides a tube sheet formula evaporimeter sets up a plurality of continuous archs 23 that have airfoil section 24 on pipeline 2's lateral wall 21, and the effect is inhaled before when the air passes through radiator fan and rotates, gets into the evaporimeter through the wind channel air intake, and the air current flows between 1 fin, places the refrigerant in pipeline 2, and the air current is when pipeline 2, and the air current flows along lateral wall 21 surface, and carries out the heat transfer between the pipeline 2. The utility model discloses setting of protruding 23 of wing section, on the one hand, because protruding 23 has airfoil section 24, when the air current was through the arch 23 on lateral wall 21 surface, the air current flow mode can change thereupon for air mixing is more even, guarantees that the air near 2 lateral wall 21 of pipeline and fin 1's wall has higher mobility, and guarantees that evaporimeter and air have the great difference in temperature, thereby high efficiency accomplishes heat exchange between them. On the other hand, because the plurality of continuous protrusions 23 connected in sequence are arranged on the outer side wall 21 of the pipeline 2, when airflow flows along the outer side wall 21 of the pipeline 2, the airflow is in a fluctuation state in a fluid circulation area, and once the airflow moves through one protrusion 23, in the process, the air can better and more sufficiently contact the pipeline 2 to exchange heat, and the air fluctuation is also beneficial to mixing with ambient air, so that the ambient air temperature is reduced, and the heat exchange efficiency is improved. On the other hand, through carrying out wing section design to 2 appearances of evaporator pipeline, the surface area of 2 lateral walls 21 of increase pipeline, and then increase the area of contact of air and pipeline 2, improve the heat transfer performance between air and pipeline 2, realize the enhancement heat transfer effect of evaporimeter, still have the effect that reduces the air flow resistance simultaneously.
Further, the pipelines 2 are uniformly distributed on the fin 1 in a grid manner, the pipelines 2 in two adjacent columns are staggered, and the pipelines 2 in two adjacent rows are staggered. Therefore, when air passes through the fins 1, the air can be better contacted with the outer surface of the pipeline 2, and the heat exchange efficiency is improved.
Further, as shown in fig. 5 to 7, along the air flowing direction a, the airfoil section 24 includes a leading edge point P, a trailing edge point Q and a contour line 241 connecting the leading edge point P and the trailing edge point Q, the leading edge point P and the trailing edge point Q are both disposed on the outer sidewall 21, and the contour line 241 is an outwardly convex arc line. Wherein the direction far away from the center of the pipeline 2 is taken as the outside, and the direction close to the center of the pipeline 2 is taken as the inside. Because lateral wall 21 is the plane, and leading edge point P and trailing edge point Q all locate on lateral wall 21, consequently the distance between leading edge point P and the trailing edge point Q is the straight line, the utility model discloses well bellied 23's airfoil section 24 is asymmetric airfoil profile, more helps changing the pressure of bellied 23 surface, reduces the flow resistance. Additionally, the utility model discloses set up outside convex arch 23 at pipeline 2's lateral wall 21, increase protruding 23's surface area, and then increase the area of contact between air and the arch 23, help improving heat exchange efficiency. And the surface of the bulge 23 has a streamline shape, has a certain drainage effect on airflow and reduces the flow resistance.
Further, the highest point M on the contour line 241 is located between the leading point P and the trailing point Q. The term "high" refers to a height of the protrusion 23 protruding from the outer sidewall 21, and a height between the highest point M on the contour line 241 and the outer sidewall 21 is the largest. Thus, the contour line 241 tends to extend outward and then contract inward, and when air flows across the surface of the protrusion 23, the air flow fluctuates once, so that the air is mixed more uniformly.
Further, the relationship between the vertical distance D between the highest point M on the contour line 241 and the outer side wall 21 and the vertical distance D between two adjacent rows of the pipes 2 is as follows: d is less than or equal to D/2. So, when avoiding the air current to flow through fin 1, the distance undersize between two adjacent pipelines 2 blocks the air flow, and then influences heat exchange efficiency.
Further, the ratio of the vertical distance D between the highest point M on the contour line 241 and the outer side wall 21 to the vertical distance D between two adjacent rows of the pipes 2 is: D/D is 0.05-0.45. Within the range, when air flows through the fins 1 between two adjacent rows of the pipelines 2, the air flow fluctuation caused by the protrusions 23 of the airfoil section 24 can affect the air between the two adjacent rows of the pipelines 2, and the air mixing efficiency is high. The distance between two adjacent rows of pipelines 2 is too small or too large, so that the mixing effect of the incoming air and the heat exchange efficiency between the air and the evaporator pipelines 2 are influenced.
Further, pipeline 2 has inside wall 22, and contained angle α between tangent line and the inside wall 22 is 0-90 in leading edge point P department, and contained angle β between tangent line and the inside wall 22 in trailing edge point Q department is 0-90 the utility model discloses all set up contained angle α and β in 0-90, can satisfy the angle of attack requirement of air current on the one hand, on the other hand also makes peak M on the outline line 241 keep between leading edge point P and trailing edge point Q, and when the air current passed through protruding 23 surface, all can produce a fluctuation, improves the heat transfer performance between air and the pipeline 2.
Further, the distance L between the leading edge point P and the trailing edge point Q and the length L of the outer side wall 21 of the pipe 2 are in relation to: l is more than or equal to L/10 and less than or equal to L. So, set up the protruding 23 that quantity is suitable, be unlikely to protruding 23 on the one hand and set up too densely, can not play fine fluctuation effect when leading to the air current to pass through protruding 23 surface, on the other hand also avoids protruding 23 to set up the area of contact that can't effectively increase between air and the pipeline 2 when sparse to and the air current wave motion cycle is longer, and the air mixes inhomogeneously.
The utility model also provides a domestic appliance, including above-mentioned tube sheet formula evaporimeter. The household appliances include refrigeration equipment, such as a refrigerator, not limited to a household refrigerator or a medical refrigerator, and other household appliances requiring heat dissipation, such as an air conditioner, an oven and the like. The household appliance adopting the tube sheet type evaporator has high heat exchange efficiency.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. The utility model provides a finned tube evaporator, its characterized in that, includes fin (1) and pipeline (2), fin (1) top-down places in proper order, pipeline (2) run through fin (1) sets up, and is adjacent between fin (1) set up a plurality of archs (23), at least two on lateral wall (21) of pipeline (2) connect in order between arch (23), the longitudinal section of arch (23) is airfoil section (24).
2. A tube-sheet evaporator according to claim 1 wherein the airfoil section (24) comprises a leading edge point P, a trailing edge point Q and a contour line (241) connecting the leading edge point P and the trailing edge point Q, the leading edge point P and the trailing edge point Q being both provided on the outer side wall (21), the contour line (241) being an arc line that is convex in a direction away from the tube (2).
3. A tube-sheet evaporator according to claim 2, characterized in that the highest point M on the contour line (241) is located between the leading edge point P and the trailing edge point Q.
4. A tube-sheet evaporator according to claim 2, characterized in that the vertical distance D between the highest point M on the contour line (241) and the outer side wall (21) and the vertical distance D between two adjacent rows of the tubes (2) are in the relationship: d is less than or equal to D/2.
5. A tube-sheet evaporator according to claim 2, characterized in that the ratio of the vertical distance D of the highest point M on the contour line (241) from the outer side wall (21) to the vertical distance D between two adjacent rows of the tubes (2) is: D/D is 0.05-0.45.
6. A tube-fin evaporator according to claim 2, characterized in that the tube (2) has an inner side wall (22), and the angle α between the tangent at the leading point P and the inner side wall (22) is 0-90 °.
7. A tube-sheet evaporator according to claim 6, characterised in that the angle β between the tangent at the trailing point Q and the inner side wall (22) is 0-90 °.
8. A tube-sheet evaporator according to claim 2, characterized in that the distance i between the leading edge point P and the trailing edge point Q and the length L of the outer side wall (21) of the tube (2) are in relation to: l is more than or equal to L/10 and less than or equal to L.
9. A tube-fin evaporator according to claim 1, wherein the tubes (2) are uniformly distributed on the fins (1) in a grid, and adjacent two rows of tubes (2) are staggered.
10. A domestic appliance comprising a tube-sheet evaporator according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937824.XU CN210892264U (en) | 2019-06-21 | 2019-06-21 | Tube sheet type evaporator and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937824.XU CN210892264U (en) | 2019-06-21 | 2019-06-21 | Tube sheet type evaporator and household appliance |
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| Publication Number | Publication Date |
|---|---|
| CN210892264U true CN210892264U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920937824.XU Active CN210892264U (en) | 2019-06-21 | 2019-06-21 | Tube sheet type evaporator and household appliance |
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| CN (1) | CN210892264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411071A (en) * | 2019-06-21 | 2019-11-05 | 中科美菱低温科技股份有限公司 | A kind of pipe type evaporator and household electrical appliance |
-
2019
- 2019-06-21 CN CN201920937824.XU patent/CN210892264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411071A (en) * | 2019-06-21 | 2019-11-05 | 中科美菱低温科技股份有限公司 | A kind of pipe type evaporator and household electrical appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220314 Address after: No.1862, Zishi Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: ZHONGKE MEILING CRYOGENICS Co.,Ltd. Patentee after: Anhui tuoxing Technology Co., Ltd Address before: No.1862, Zishi Road, Hefei Economic Development Zone, Anhui Province Patentee before: ZHONGKE MEILING CRYOGENICS Co.,Ltd. |
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| TR01 | Transfer of patent right |