CN214276234U - Frost prevention device and heat exchanger - Google Patents
Frost prevention device and heat exchanger Download PDFInfo
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- CN214276234U CN214276234U CN202023311309.2U CN202023311309U CN214276234U CN 214276234 U CN214276234 U CN 214276234U CN 202023311309 U CN202023311309 U CN 202023311309U CN 214276234 U CN214276234 U CN 214276234U
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Abstract
The utility model belongs to the technical field of the heat exchanger, a frost prevention device and a heat exchanger are disclosed, the frost prevention device comprises a fin, a bottom plate and a pipeline assembly, the fin is installed on the bottom plate, an air flow channel is arranged between the fin and the bottom plate, the pipeline assembly comprises a liquid inlet pipe and a bottom branch pipe, the liquid inlet pipe is communicated with the bottom branch pipe, the bottom branch pipe is laid at one end of the fin close to the bottom plate, a one-way piece is arranged on the bottom branch pipe, and the flow guide direction of the one-way piece is from the bottom branch pipe to the liquid inlet pipe; the heat exchanger includes box and foretell frost prevention device, and frost prevention device installs on the box, and the bottom plate is located the bottom of box. The pipeline assembly can conduct the refrigerant, and when the operation of heating is carried out, the low-pressure and low-temperature refrigerant does not pass through from the bottom branch pipe of which the fin is close to one end of the bottom plate, so that the icing caused by the low-temperature of the bottom plate is prevented, and the airflow channel can increase the airflow, so that the volatilization of accumulated water on the bottom plate is accelerated, and the heat exchange performance of the heat exchanger is improved.
Description
Technical Field
The utility model relates to a heat exchanger technical field especially relates to a frost prevention device and heat exchanger.
Background
Because the environment in northern Xinjiang area is low-temperature and high-humidity, when the air conditioning unit is operated in the area for heating, the throttled low-temperature and low-pressure refrigerant liquid enters the heat exchanger, and evaporates to absorb heat, so that the temperature of the side wall of the heat exchanger is continuously reduced, and the side wall of the heat exchanger is easy to freeze or condense water vapor. The bottom of the existing fin type heat exchanger is iced or steam is condensed most seriously due to factors such as uneven air volume and over-fast cooling of bottom airflow caused by water flow to the bottom, so that the heat transfer coefficient of the heat exchanger is reduced, the flow resistance of an air side is increased, and the heat supply capacity of a unit is weakened.
Based on the above current situation, it is necessary to design an anti-frost device and a heat exchanger to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: provided is an anti-frost device which can restrict the refrigerant from passing through a bottom branch pipe during heating, and can increase the air flow between a fin and a bottom plate, thereby preventing freezing and water accumulation on the bottom plate.
Another object of the present invention is to provide a heat exchanger, which includes the above frost preventing device, and can improve the heat exchange performance.
To achieve the purpose, the utility model adopts the following technical proposal:
in one aspect, an anti-frost device is disclosed, comprising:
a fin;
the bottom plate is provided with the fins, and an air flow channel is arranged between the fins and the bottom plate and is used for circulating wind;
the pipeline assembly is used for circulating a refrigerant and comprises a liquid inlet pipe and a bottom branch pipe, the liquid inlet pipe is communicated with the bottom branch pipe, the bottom branch pipe is laid on the fins, the fins are close to one end of the bottom plate, a one-way part is arranged on the bottom branch pipe, and the flow guide direction of the one-way part is that the bottom branch pipe reaches the liquid inlet pipe.
Optionally, the one-way member is provided as a one-way valve.
Preferably, the air flow channel is provided as an air flow gap between the fin and the bottom plate.
As a preferable scheme, a drainage channel is arranged on the bottom plate and used for draining water.
Preferably, the drainage channel is a drainage hole, and the drainage hole is opened on the bottom plate.
As a preferred scheme, the pipeline assembly further comprises a liquid distributor and a liquid separating branch pipe, one end of the liquid distributor is connected with the liquid inlet pipe, and the other end of the liquid distributor is connected with the liquid separating branch pipe and the bottom branch pipe.
Preferably, the branch liquid-separating pipe is wound around the part of the fin far away from the bottom plate.
As a preferable scheme, the pipeline assembly further comprises liquid outlet pipes, and the liquid outlet pipes are laid on the fins and communicated with the liquid separating branch pipes and the bottom branch pipes.
As a preferred scheme, a connecting hole is formed in the bottom plate, and the liquid inlet pipe is in clearance fit with the connecting hole.
As a preferable scheme, the frost prevention device further comprises an intermediate plate, the intermediate plate is connected with and located between the fins on the two sides, and the liquid inlet pipe is fixed on the intermediate plate.
On the other hand, still disclose a heat exchanger, including box and foretell frost prevention device, frost prevention device installs on the box, and the bottom plate is located the bottom of box.
The utility model has the advantages that: when heating work is carried out, the one-way piece of the frost prevention device can limit low-temperature and low-pressure refrigerant to enter the bottom branch pipe from the liquid inlet pipe, icing caused by over-low temperature of the bottom plate is prevented, and the air flow channel is arranged between the fin and the bottom plate, so that the air flow between the fin and the bottom plate can be increased, and the volatilization of accumulated water is accelerated; the heat exchanger comprises the frost prevention device, and the frost prevention device can inhibit water accumulation and icing at the bottom of the heat exchanger, so that the heat exchange performance is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a front view of an anti-frost device;
FIG. 2 is a rear view of the frost protection device;
FIG. 3 is a bottom view of the frost protection apparatus;
fig. 4 is a schematic structural diagram of an anti-frost device.
In fig. 1 to 4:
1. a fin;
2. a base plate; 21. a drain hole; 22. connecting holes;
3. a conduit assembly; 31. a liquid inlet pipe; 32. a bottom branch pipe; 33. a one-way member; 34. a liquid separator; 35. a branch liquid separating pipe; 36. a liquid outlet pipe;
4. a wind flow gap;
5. a middle plate.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides an anti-frost device, which includes a fin 1, a bottom plate 2 and a duct assembly 3, wherein the fin 1 is mounted on the bottom plate 2, and an air flow channel is provided between the fin 1 and the bottom plate 2, and the air flow channel is used for the circulation of air; pipeline component 3 is used for the circulation of refrigerant, and pipeline component 3 includes feed liquor pipe 31 and bottom branch pipe 32, and feed liquor pipe 31 and bottom branch pipe 32 communicate, and bottom branch pipe 32 is laid in fin 1 and is close to the one end of bottom plate 2, is provided with one-way component 33 on the bottom branch pipe 32, and the water conservancy diversion direction of one-way component 33 is bottom branch pipe 32 to feed liquor pipe 31. The check member 33 in this embodiment is a check valve, in a low-temperature and high-humidity environment, when heating is performed, low-temperature and low-pressure refrigerant flows in from the liquid inlet pipe 31, and under the action of the check valve, the low-temperature and low-pressure refrigerant cannot flow into the bottom branch pipe 32, so that the low-temperature and low-pressure refrigerant is prevented from reducing the temperature around the bottom plate 2 and the bottom plate 2 to cause vapor condensation or icing; when refrigeration is carried out, because the water conservancy diversion direction of check valve is bottom branch pipe 32 to feed liquor pipe 31, high-temperature high-pressure refrigerant can flow into feed liquor pipe 31 from bottom branch pipe 32, that is to say, refrigerant this moment can be close to the pipeline of bottom plate 2 one end through fin 1, and high-temperature high-pressure refrigerant has improved the temperature around bottom plate 2 and bottom plate 2, and then makes the frost melt or ponding evaporation. And an air flow channel is also arranged between the fin 1 and the bottom plate 2, and the air flow channel can accelerate the flow of air, so that the volatilization of accumulated water on the bottom plate 2 is accelerated, and the accumulated water on the bottom plate 2 is reduced.
As shown in fig. 2, specifically, the air flow channel is provided as an air flow gap 4, and the air flow gap 4 is located between the fin 1 and the bottom plate 2. It can be understood that the fin 1 is mounted on the bottom plate 2, and an air flow gap 4 is arranged between the fin 1 and the bottom plate 2, and the wind can flow through the air flow gap 4 to volatilize accumulated water on the bottom plate 2. In other embodiments of the present invention, the air flow channel may also be configured as a fan, and the fan can blow the bottom plate 2 to volatilize the accumulated water on the bottom plate 2.
As shown in fig. 3, the bottom plate 2 is provided with a drain passage for draining water. Specifically, the drain passage is provided as a drain hole 21, and the drain hole 21 opens on the bottom plate 2. When water accumulates on the bottom plate 2, the accumulated water can flow out through the water discharge hole 21. The utility model discloses an in other embodiments, drainage channel also can set up to water drainage tank, and water drainage tank sets up on bottom plate 2, and ponding can flow outside bottom plate 2 via water drainage tank.
As shown in fig. 1, the pipe assembly 3 further includes a liquid separator 34 and a branch liquid separating pipe 35, wherein one end of the liquid separator 34 is connected to the liquid inlet pipe 31, and the other end is connected to the branch liquid separating pipe 35 and the branch bottom pipe 32. The number of the liquid distributors 34 and the number of the branch liquid distributing pipes 35 may be set to a desired number, and in this embodiment, the number of the liquid distributors 34 is two, and the number of the branch liquid distributing pipes 35 is several. When heating is performed, the refrigerant flows in from the liquid inlet pipe 31, flows into the plurality of liquid separating branch pipes 35 through the flow separation of the liquid separator 34, and then exchanges heat respectively, so that the heat exchange area and the heat exchange efficiency of the refrigerant are increased.
In this embodiment, the branch liquid-separating pipe 35 is wound around the fin 1 at a position away from the bottom plate 2. On one hand, the liquid separating branch pipes 35 are wound on the fins 1, so that the heat exchange area can be effectively increased in the heat exchange process; on the other hand, the fins 1 can also play a bearing role, can support and reinforce the liquid separating branch pipes 35, and improves reliability.
In this embodiment, the pipe assembly 3 further comprises a liquid outlet pipe 36, and the liquid outlet pipe 36 is laid on the fin 1 and is communicated with the liquid separating branch pipe 35 and the bottom branch pipe 32. When heating is performed, the liquid outlet pipe 36 can concentrate the refrigerant after heat exchange of the liquid separating branch pipe 35, so that heat loss is reduced; when the refrigeration work is performed, the liquid outlet pipe 36 can shunt the high-temperature and high-pressure refrigerant to the liquid separating branch pipe 35 and the bottom branch pipe 32, and the heat exchange efficiency is improved.
As shown in fig. 4, the bottom plate 2 is provided with a connection hole 22, and the liquid inlet pipe 31 is in clearance fit with the connection hole 22. Specifically, liquid inlet pipe 31 passes through connecting hole 22 with a gap, liquid outlet pipe 36 also passes through connecting hole 22, and liquid outlet pipe 36 is located at the periphery of liquid inlet pipe 31. When heating is performed, low-temperature and low-pressure refrigerant flows in from the liquid inlet pipe 31, the liquid inlet pipe 31 does not directly contact the bottom plate 2, and the liquid outlet pipe 36 can play a certain role in isolating the low-temperature and low-pressure refrigerant, so that the low-temperature and low-pressure refrigerant is prevented from causing the over-low temperature around the bottom plate 2 and further freezing; when refrigeration work is carried out, high-temperature and high-pressure refrigerant flows in from the liquid outlet pipe 36, the liquid outlet pipe 36 directly contacts the bottom plate 2, the temperature around the bottom plate 2 and the bottom plate 2 can be increased, and frost is melted and accumulated water is evaporated.
In this embodiment, the frost preventing apparatus further includes an intermediate plate 5, the intermediate plate 5 is connected to and located between the fins 1 on both sides, and the liquid inlet pipe 31 is fixed on the intermediate plate 5. Two fins 1 are the contained angle setting, and the fin 1 of both sides is connected to intermediate lamella 5, and feed liquor pipe 31 passes through the mount pad to be fixed on intermediate lamella 5. On the one hand, the intermediate plate 5 is able to support the fins 1 on both sides; on the other hand, the intermediate plate 5 provides support for the liquid inlet pipe 31, and the reliability of the whole structure is improved.
The embodiment also provides a heat exchanger, including box and foretell frost prevention device, frost prevention device installs on the box, and bottom plate 2 is located the bottom of box. The frost prevention device can inhibit water accumulation and icing at the bottom of the heat exchanger, and further improves the heat exchange performance of the heat exchanger.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An anti-frost device, comprising:
a fin (1);
the bottom plate (2), the fins (1) are installed on the bottom plate (2), and an air flow channel is arranged between the fins (1) and the bottom plate (2) and is used for circulating air;
pipeline subassembly (3) for the circulation of refrigerant, pipeline subassembly (3) are including feed liquor pipe (31) and bottom branch pipe (32), feed liquor pipe (31) with bottom branch pipe (32) intercommunication, bottom branch pipe (32) are laid fin (1) are close to the one end of bottom plate (2), be provided with one-way component (33) on bottom branch pipe (32), the water conservancy diversion direction of one-way component (33) does bottom branch pipe (32) extremely feed liquor pipe (31).
2. Frost prevention device according to claim 1, characterized in that the air flow channel is arranged as an air flow gap (4), the air flow gap (4) being located between the fin (1) and the bottom plate (2).
3. Frost protection against freezing according to claim 1, characterized in that a drainage channel is provided on the floor (2) for drainage.
4. Frost protection against freezing according to claim 3, wherein the drainage channel is provided as a drainage hole (21), the drainage hole (21) opening onto the floor plate (2).
5. Frost prevention apparatus according to claim 1, characterized in that the pipe assembly (3) further comprises a liquid separator (34) and a branch liquid pipe (35), wherein one end of the liquid separator (34) is connected to the liquid inlet pipe (31) and the other end is connected to the branch liquid pipe (35) and the branch bottom pipe (32).
6. Frost protection device according to claim 5, wherein the branch liquid pipe (35) is arranged around the fin (1) at a position remote from the base plate (2).
7. Frost protection device according to claim 6, wherein the duct assembly (3) further comprises an outlet pipe (36), the outlet pipe (36) being laid on the fins (1) and communicating with the branch liquid pipe (35) and the bottom branch pipe (32).
8. Frost protection device according to claim 1, wherein the base plate (2) is provided with a connection hole (22), the liquid inlet pipe (31) being in clearance fit with the connection hole (22).
9. Frost prevention apparatus according to claim 1, further comprising an intermediate plate (5), said intermediate plate (5) connecting said fins (1) on both sides and being located between said fins (1) on both sides, said liquid inlet pipe (31) being fixed to said intermediate plate (5).
10. A heat exchanger, characterized in that it comprises a tank and an anti-frost device as claimed in any one of claims 1 to 9, said anti-frost device being mounted on said tank, said bottom plate (2) being located at the bottom of said tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023311309.2U CN214276234U (en) | 2020-12-31 | 2020-12-31 | Frost prevention device and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023311309.2U CN214276234U (en) | 2020-12-31 | 2020-12-31 | Frost prevention device and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214276234U true CN214276234U (en) | 2021-09-24 |
Family
ID=77786482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023311309.2U Active CN214276234U (en) | 2020-12-31 | 2020-12-31 | Frost prevention device and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214276234U (en) |
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2020
- 2020-12-31 CN CN202023311309.2U patent/CN214276234U/en active Active
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