CN219015088U - Collecting pipe structure, micro-channel heat exchanger and water heater - Google Patents
Collecting pipe structure, micro-channel heat exchanger and water heater Download PDFInfo
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- CN219015088U CN219015088U CN202223241076.2U CN202223241076U CN219015088U CN 219015088 U CN219015088 U CN 219015088U CN 202223241076 U CN202223241076 U CN 202223241076U CN 219015088 U CN219015088 U CN 219015088U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims abstract description 66
- 238000010276 construction Methods 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 abstract description 14
- 238000005187 foaming Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a collecting pipe structure, a micro-channel heat exchanger and a water heater, relates to the technical field of water heaters, and solves the technical problem that in the prior art, the space occupied by connecting pipelines between two collecting pipes of the micro-channel heat exchanger is relatively large, so that the heat exchange area of the micro-channel heat exchanger contacted with an inner container is reduced. The collecting pipe structure comprises a collecting inlet pipe, a return pipe and an intermediate connecting structure, wherein the collecting inlet pipe and the return pipe are in contact or have gaps, the intermediate connecting structure is communicated with the collecting inlet pipe and the return pipe, the collecting inlet pipe is connected with a flat pipe of the microchannel heat exchanger, a spacer is arranged in the collecting inlet pipe, a refrigerant inlet and a refrigerant outlet are formed on the collecting inlet pipe and the return pipe respectively, and the refrigerant inlet and the refrigerant outlet are arranged upwards. By using the collecting pipe structure provided by the utility model, the space occupied by a pipeline between the collecting pipe structure and another conventional collecting pipe on the micro-channel water heater can be reduced, so that the heat exchange area of the micro-channel water heater contacted with the liner can be increased.
Description
Technical Field
The utility model relates to the technical field of water heaters, in particular to a collecting pipe structure, a micro-channel heat exchanger and a water heater.
Background
The existing water tank of the air energy water heater is wrapped outside the water tank liner by a micro-channel heat exchanger to exchange heat with the water tank, and a space with a certain width is reserved between two collecting pipes of the micro-channel heat exchanger so as to avoid water inlet and outlet pipes, electric heating, electric appliance boxes, temperature sensing joints and the like.
Referring to fig. 1 and 2, in the prior art, a collecting pipe (a conventional collecting pipe 8 in the drawing) is a single-hole channel, wherein a side wall of one collecting pipe close to the upper side and a side wall close to the lower side are respectively drilled with a flow inlet hole and a flow outlet hole, two connecting blocks 9 are respectively welded at the two holes, the two connecting blocks 9 are respectively connected with a refrigerant inlet pipe 10 and a refrigerant outlet pipe 11, a plurality of refrigerant micro-channel flat pipes 4 are connected between the two collecting pipes, and as a spacer 5 is arranged on the collecting pipe, the flow direction of a refrigerant entering a micro-channel heat exchanger is shown as an arrow in fig. 1, finally flows to the flow outlet hole at the lower part of the collecting pipe, and finally flows out through a switching block 9 and the refrigerant outlet pipe 11 welded on the flow outlet hole.
The applicant found that the prior art has at least the following technical problems:
1) The connecting pipelines between the two collecting pipes of the micro-channel heat exchanger generally occupy a certain space, so that the distance between the collecting pipes is increased, the heat exchange area of the micro-channel heat exchange water heater contacted with the liner is reduced, the heat exchange of the water tank is not facilitated, and the performance of the water heater system is affected;
2) Because the collecting pipe is required to be perforated, the collecting pipe is also connected with the copper-aluminum connecting pipe through the welding adapter block, the production and processing procedures are more, the process is complex, the requirement on welding quality is higher, and the risk of refrigerant leakage exists;
3) Because the refrigerant connecting pipe and the heat preservation cotton wrapped on the refrigerant connecting pipe occupy space and block, foaming is possibly not full during foaming, and a hollow part space is formed, so that the heat preservation performance of the water tank is affected, unnecessary heat loss is caused, and unnecessary power consumption of a unit is caused.
Disclosure of Invention
The utility model aims to provide a collecting pipe structure, a micro-channel heat exchanger and a water heater, which solve the technical problems that the space occupied by connecting pipelines between two collecting pipes of the micro-channel heat exchanger in the prior art is relatively large, and the heat exchange area of the micro-channel heat exchanger contacted with an inner container is reduced. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a collecting pipe structure which comprises a collecting pipe, a return pipe and an intermediate connection structure, wherein the collecting pipe and the return pipe are contacted or have gaps, the intermediate connection structure is communicated with the collecting pipe and the return pipe, the collecting pipe is connected with a flat pipe of a microchannel heat exchanger, a refrigerant inlet and a refrigerant outlet are respectively formed on the collecting pipe and the return pipe, and the refrigerant inlet and the refrigerant outlet are upwards arranged.
Further, the collecting inlet pipe and the return pipe are of an integrated structure, and the distance between central shafts of the collecting inlet pipe and the return pipe is not larger than the sum of the outer radiuses of the collecting inlet pipe and the return pipe.
Further, the middle connecting structure is a U-shaped pipe, the collecting inlet pipe and the return pipe are arranged in parallel, and two ends of the middle connecting structure are respectively connected with the collecting inlet pipe and the return pipe.
Further, the collecting inlet pipe and the return pipe are welded and connected with the intermediate connecting structure.
Further, an outlet connection plate is arranged in the outlet side of the collecting inlet pipe, and one end of the intermediate connection structure is inserted into the outlet connection plate and connected with the outlet connection plate.
Further, an inlet connection plate is arranged in the inlet side of the collecting inlet pipe and is used for being connected with the refrigerant inlet pipe.
Further, the diameter of the collecting inlet pipe is larger than that of the return pipe, and one end of the intermediate connecting structure is inserted into the intermediate connecting structure.
Further, the height of the return pipe top end is not lower than the height of the collecting inlet pipe top end.
The utility model provides a microchannel heat exchanger, which comprises a plurality of conventional collecting pipes, flat pipes and collecting pipe structures, wherein two ends of each flat pipe are respectively connected with the conventional collecting pipes and collecting inlet pipes of the collecting pipe structures.
The utility model provides a water heater, which comprises the micro-channel heat exchanger.
The beneficial effects of the utility model are as follows:
according to the collecting pipe structure provided by the utility model, the refrigerant inlet and the refrigerant outlet are respectively formed on the collecting pipe and the return pipe, and the refrigerant inlet and the refrigerant outlet are upward arranged, so that 90-degree turning is not required to be arranged at one end of the refrigerant inlet pipe and the refrigerant outlet pipe connected with the collecting pipe structure, one end of the refrigerant inlet pipe and one end of the refrigerant outlet pipe, which are close to the collecting pipe structure, are arranged into straight pipes, the space occupied by a pipeline between the collecting pipe structure and another conventional collecting pipe on the microchannel water heater is reduced, and the heat exchange area of the microchannel water heater contacted with the liner is increased; in addition, because the collecting inlet pipe and the return pipe are contacted or have gaps, the space between the collecting inlet pipe and the other conventional collecting pipe on the micro-channel heat exchanger can be reduced as much as possible.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded schematic view of a prior art microchannel heat exchanger;
FIG. 2 is a schematic front view of a prior art microchannel heat exchanger;
FIG. 3 is a schematic view of a microchannel heat exchanger according to an embodiment of the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view at B in FIG. 3;
FIG. 6 is a schematic front view of a microchannel heat exchanger according to an embodiment of the present utility model;
fig. 7 is a schematic cross-sectional view of an intermediate connection structure connected to a header and a return pipe according to an embodiment of the present utility model;
FIG. 8 is a schematic cross-sectional view of a header and return line connected to a refrigerant inlet and outlet respectively, according to an embodiment of the present utility model;
fig. 9 is a schematic cross-sectional view of a header and return tube phase provided in an embodiment of the present utility model.
1-collecting a feed pipe in the figure; 2-a return pipe; 3-an intermediate connection structure; 4-flat tube; 5-spacer; 6-an outlet connection plate; 7-an inlet connection plate; 8-a conventional collecting pipe; 9-connecting blocks; 10-refrigerant inlet pipe; 11-refrigerant outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
Referring to fig. 1, a schematic diagram of a prior art microchannel heat exchanger is shown. The side wall of the left conventional collecting pipe 8 close to the upper side and the side wall close to the lower side are respectively drilled with a flow inlet hole and a flow outlet hole, connecting blocks 9 are respectively welded at the two holes, the two connecting blocks 9 are respectively connected with a refrigerant inlet pipe 10 and a refrigerant outlet pipe 11, and the flow inlet hole and the flow outlet hole are arranged on the side wall of the conventional collecting pipe 8, so that a turning part exists between the refrigerant inlet pipe 10 and the refrigerant outlet pipe 11. The arrangement of the connecting block 9 and the shapes of the refrigerant inlet pipe 10 and the refrigerant outlet pipe 11 in fig. 1 lead to relatively large space occupied by connecting pipelines between the two conventional collecting pipes 8, so that the distance between the two conventional collecting pipes 8 is increased, and the heat exchange area of the micro-channel heat exchange water heater contacted with the liner is reduced. Based on the structure, the utility model provides a collecting pipe structure, which comprises the following structures: the micro-channel heat exchanger comprises a collecting inlet pipe 1, a return pipe 2 and an intermediate connecting structure 3, wherein the collecting inlet pipe 1 and the return pipe 2 are in contact or have gaps, the intermediate connecting structure 3 is communicated with the collecting inlet pipe 1 and the return pipe 2, the collecting inlet pipe 1 is connected with a flat pipe 4 of the micro-channel heat exchanger, a spacer 5 is arranged in the collecting inlet pipe 1, the collecting inlet pipe 1 is equivalent to a conventional collecting pipe 8 of the existing micro-channel heat exchanger, a refrigerant inlet and a refrigerant outlet are respectively formed on the collecting inlet pipe 1 and the return pipe 2, the refrigerant inlet and the refrigerant outlet are upwards arranged, and the refrigerant inlet and the refrigerant outlet are respectively connected with a refrigerant inlet pipe 10 and a refrigerant outlet pipe 11. The top ends of the collecting inlet pipe 1 and the return pipe 2 respectively form a refrigerant inlet and a refrigerant outlet, so that 90-degree turning is not required to be arranged at one end, connected with the collecting pipe structure, of the refrigerant inlet pipe 10 and the refrigerant outlet pipe 11, one end, close to the collecting pipe structure, of the refrigerant inlet pipe 10 and the refrigerant outlet pipe 11 is arranged into a straight pipe, the space occupied by a pipeline between the collecting pipe structure and the other conventional collecting pipe 8 on the micro-channel water heater is reduced, and the heat exchange area of the micro-channel water heater in contact with the liner is increased. In addition, because the collecting inlet pipe 1 and the return pipe 2 are contacted or have gaps, the space occupied by the return pipe 2 between the collecting inlet pipe 1 and the other conventional collecting pipe 8 on the micro-channel water heater can be reduced, and the heat exchange area of the micro-channel water heater contacted with the liner can be increased.
The collecting pipe structure provided by the utility model can enable the micro-channel heat exchanger to be compact in structure, reduce the lengths of the connecting blocks and the refrigerant connecting copper pipes and reduce the cost; the foaming space occupied by the connecting pipe is reduced, the heat insulation performance of the system is improved, and the unit is more energy-saving.
Preferably, the top end of the return pipe 2 is not lower than the top end of the collecting inlet pipe 1, so that the installation of the refrigerant inlet pipe 10 and the refrigerant outlet pipe 11 does not affect the distance between the collecting pipe structure and the other conventional collecting pipe 8 on the micro-channel water heater.
Preferably, the collecting inlet pipe 1 and the return pipe 2 are of an integrally formed structure, and the distance between central shafts of the collecting inlet pipe 1 and the return pipe 2 is not larger than the sum of the outer radiuses of the collecting inlet pipe 1 and the return pipe 2. Referring to fig. 9, a cross-sectional view of the header 1 and return tube 2 is illustrated. The distance between the central axes of the collecting inlet pipe 1 and the return pipe 2 is smaller than the sum of the outer radii of the collecting inlet pipe 1 and the return pipe 2, so that the space occupied by the return pipe 2 between the collecting inlet pipe 1 and the other conventional collecting pipe 8 on the micro-channel water heater can be reduced as much as possible.
Regarding the intermediate connection structure 3, the intermediate connection structure 3 is a U-shaped pipe, the collecting inlet pipe 1 and the return pipe 2 are arranged in parallel, and two ends of the intermediate connection structure 3 are respectively connected with the collecting inlet pipe 1 and the return pipe 2. Referring to fig. 4, an intermediate connection structure 3 is schematically shown, and the collecting inlet pipe 1 and the return pipe 2 are connected through the U-shaped tubular intermediate connection structure 3, so that the structure is simple. Preferably, both the collecting inlet pipe 1 and the return pipe 2 are welded to the intermediate connection 3.
Referring to fig. 7, one end of the intermediate connection structure 3 is directly inserted into the return pipe 2, and the intermediate connection structure 3 is welded to the return pipe 2. Referring to fig. 8, one end of the refrigerant outlet pipe 11 is directly inserted into the return pipe 2, and the refrigerant outlet pipe 11 may be welded to the return pipe 2.
As for the specific connection structure of the current collecting inlet pipe 1 and the intermediate connection structure 3, the following may be mentioned: referring to fig. 4 and 7, since the diameter of the collecting inlet pipe 1 is larger than that of the return pipe 2, the diameter of the collecting inlet pipe 1 is larger than that of the collecting inlet pipe 1, an outlet connection plate 6 is provided in the outlet side of the collecting inlet pipe 1, the outlet connection plate 6 is welded to the collecting inlet pipe 1, and one end of the intermediate connection structure 3 is inserted into the outlet connection plate 6 and is welded to the outlet connection plate 6.
Regarding the concrete connection structure of the collecting inlet pipe 1 and the refrigerant inlet pipe 10, since the refrigerant inlet pipe 10 is smaller than the collecting inlet pipe 1, an inlet connection plate 7 is arranged in the inlet side of the collecting inlet pipe 1, the inlet connection plate 7 is welded on the collecting inlet pipe 1, and the refrigerant inlet pipe 10 is inserted into the inlet connection plate 7 and connected with the inlet connection plate 7.
A spacer 5 is arranged in the collecting inlet pipe 1; alternatively, two spacers 5 are provided in the current collecting pipe 1 at intervals along the length of the current collecting pipe 1. Referring to fig. 3 and 6, two spacers 5 are provided at intervals in the manifold 1, and the spacers 5 block communication between both sides thereof. The specific connection structure of the spacer 5 may be a conventional one, and will not be described in detail here. Regarding the number of spacers 5, a reasonable setting can be made according to the actual situation.
The utility model provides a microchannel heat exchanger, a plurality of conventional collecting pipes 8, flat pipes 4 and collecting pipe structures, wherein two ends of each flat pipe 4 are respectively connected with a plurality of collecting inlet pipes 1 of the conventional collecting pipes 8 and the collecting pipe structures. Referring to fig. 3 and 6, a microchannel heat exchanger is illustrated. By adopting the collecting pipe structure, the space occupied by the pipeline between the collecting pipe structure and the other conventional collecting pipe on the micro-channel water heater is reduced, and the heat exchange area of the micro-channel water heater contacted with the liner is increased.
In fig. 6, two spacers 5 are schematically arranged in the collecting inlet pipe 1, and one spacer 5 for blocking communication is arranged in the conventional collecting pipe 8. In fig. 6, the flow direction of the refrigerant is schematically indicated by arrows. The refrigerant entering the collecting inlet pipe 1 through the refrigerant inlet pipe 10 flows to the conventional collecting pipe 8 through the (five) flat pipes 4 under the blocking of the spacer 5 in the collecting inlet pipe 1, and flows to the collecting inlet pipe 1 through the other (six) flat pipes 4 under the action of the spacer 5 in the conventional collecting pipe 8. Under the action of the flow collecting inlet pipe 1 and the spacer 5 in the conventional flow collecting pipe 8, the refrigerant flows back and forth and finally is discharged through the refrigerant outlet pipe 11.
A water heater comprises the microchannel heat exchanger provided by the utility model.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. The collecting pipe structure is characterized by comprising a collecting pipe (1), a return pipe (2) and an intermediate connecting structure (3), wherein,
the flow collecting inlet pipe (1) and the return pipe (2) are in contact or have gaps, the middle connecting structure (3) is communicated with the flow collecting inlet pipe (1) and the return pipe (2), the flow collecting inlet pipe (1) is used for being connected with a flat pipe (4) of the microchannel heat exchanger, a refrigerant inlet and a refrigerant outlet are formed on the flow collecting inlet pipe (1) and the return pipe (2) respectively, and the refrigerant inlet and the refrigerant outlet are arranged upwards.
2. Header structure according to claim 1, characterized in that said header (1) and said return (2) are of integral construction and in that the distance between the central axes of said header (1) and said return (2) is not greater than the sum of the outer radii thereof.
3. Header structure according to claim 1, characterized in that said intermediate connection structure (3) is a U-shaped tube, said header inlet tube (1) and said return tube (2) are arranged in parallel, and both ends of said intermediate connection structure (3) are connected to said header inlet tube (1) and said return tube (2), respectively.
4. Header structure according to claim 1, characterized in that both the header inlet pipe (1) and the return pipe (2) are welded to the intermediate connection structure (3).
5. Header structure according to claim 1, characterized in that an outlet connection plate (6) is provided in the outlet side of the header inlet pipe (1), and that one end of the intermediate connection structure (3) is inserted into the outlet connection plate (6) and connected to the outlet connection plate (6).
6. Header structure according to claim 1, characterized in that an inlet connection plate (7) is provided in the inlet side of the header inlet pipe (1), said inlet connection plate (7) being intended to be connected with a refrigerant inlet pipe.
7. Header structure according to claim 1, characterized in that the diameter of the header inlet pipe (1) is greater than the diameter of the return pipe (2) and in that one end of the intermediate connection structure (3) is inserted into the intermediate connection structure (3).
8. Header structure according to claim 1, characterized in that the height of the top end of the return pipe (2) is not lower than the height of the top end of the collecting inlet pipe (1).
9. A microchannel heat exchanger, characterized by a conventional header (8), a flat tube (4) and a header structure according to any one of claims 1-8, wherein the flat tube (4) is a plurality of flat tubes and two ends of the flat tube (4) are respectively connected with the conventional header (8) and a header inlet tube (1) of the header structure.
10. A water heater comprising the microchannel heat exchanger of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223241076.2U CN219015088U (en) | 2022-12-01 | 2022-12-01 | Collecting pipe structure, micro-channel heat exchanger and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223241076.2U CN219015088U (en) | 2022-12-01 | 2022-12-01 | Collecting pipe structure, micro-channel heat exchanger and water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219015088U true CN219015088U (en) | 2023-05-12 |
Family
ID=86234542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223241076.2U Active CN219015088U (en) | 2022-12-01 | 2022-12-01 | Collecting pipe structure, micro-channel heat exchanger and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219015088U (en) |
-
2022
- 2022-12-01 CN CN202223241076.2U patent/CN219015088U/en active Active
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