CN219607436U - Return air connecting pipe, compression refrigerating system and refrigerator - Google Patents
Return air connecting pipe, compression refrigerating system and refrigerator Download PDFInfo
- Publication number
- CN219607436U CN219607436U CN202320303274.2U CN202320303274U CN219607436U CN 219607436 U CN219607436 U CN 219607436U CN 202320303274 U CN202320303274 U CN 202320303274U CN 219607436 U CN219607436 U CN 219607436U
- Authority
- CN
- China
- Prior art keywords
- liquid storage
- connecting pipe
- return air
- storage structure
- section
- 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.)
- Active
Links
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 238000003860 storage Methods 0.000 claims abstract description 82
- 239000003507 refrigerant Substances 0.000 claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model provides an air return connecting pipe, a compression refrigeration system and a refrigerator, relates to the technical field of compression refrigeration systems, and solves the technical problem that an air return connecting pipe in the prior art lacks a liquid storage function. The liquid storage structure is formed on the air return connecting pipe and can store liquid refrigerant. The wall thickness of the return air connecting pipe is 0.65mm. According to the thin-wall air return connecting pipe, the liquid storage structure is connected to the middle section of the pipeline, so that the heat exchange effect of the air return connecting pipe is enhanced, the refrigerant which is not completely vaporized and flows back by the air return pipe assembly can be temporarily stopped and vaporized for the second time, the problem that liquid impact of a compressor possibly occurs is effectively solved, and the liquid impact risk is reduced.
Description
Technical Field
The utility model relates to the technical field of compression refrigeration systems, in particular to an air return connecting pipe, a compression refrigeration system and a refrigerator.
Background
The return air connecting pipe is a pipeline for connecting the refrigerator return air pipe assembly with the compressor, and is a section of passage for returning the refrigerant from the evaporator to the compressor. Referring to fig. 1, an existing return air connection pipe is schematically shown.
The present inventors found that there are at least the following technical problems in the prior art:
1) The existing return air connecting pipes are all copper light pipes, the diameters of the cross sections of the parts are basically consistent, the return air connecting pipes lack of a liquid storage function, and the phenomenon of liquid impact of a compressor is relatively easy to occur;
2) Most of the existing return air connecting pipes have the wall thickness of 0.75mm, the thickness is relatively large, the cost is high, and the heat exchange effect of the refrigerant in the connecting pipes and the external environment is affected, so that the refrigerant which is not completely vaporized flows back to the compressor, and liquid impact is caused.
Disclosure of Invention
The utility model aims to provide an air return connecting pipe, a compression refrigeration system and a refrigerator, which solve the technical problem that the air return connecting pipe in the prior art lacks a liquid storage function. 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:
according to the air return connecting pipe provided by the utility model, the liquid storage structure is formed on the air return connecting pipe, and the liquid storage structure can store liquid refrigerant.
Further, the pipe wall of the air return connecting pipe protrudes to a direction away from the center of the air return connecting pipe to form the liquid storage structure.
Further, the outer side surface of the liquid storage structure is spherical.
Further, the liquid storage structure is one, or, the liquid storage structure is more than two and along the length direction interval distribution of return air connecting pipe.
Further, the wall thickness of the return air connecting pipe is smaller than 0.75mm.
Further, the wall thickness of the return air connecting pipe is 0.65mm.
Further, the return air connecting pipe comprises a flaring section, a middle section and a flat-mouth section, wherein the flaring section, the middle section and the flat-mouth section are sequentially connected, the flaring section is used for being connected with a return air eduction tube, the flat-mouth section is used for being connected with a compressor, and the middle section is provided with a liquid storage structure.
Further, the flaring section, the middle section and the flat section are welded and connected, and the middle section is of a straight pipe structure.
The utility model provides a compression refrigeration system, which comprises an air return connecting pipe, wherein the air return connecting pipe is connected with a compressor of the compression refrigeration system.
The utility model provides a refrigerator, which comprises the compression refrigeration system.
The preferred technical scheme of the utility model can at least have the following technical effects: according to the air return connecting pipe provided by the utility model, the liquid storage structure is formed on the air return connecting pipe, and the liquid storage structure can store liquid refrigerant. For example, a refrigerating system on a refrigerator can be provided with the return air connecting pipe, when the required liquid storage amount of the refrigerator is smaller, the liquid storage structure can replace a liquid storage device arranged on an evaporator, and compared with the existing aluminum liquid storage device, the return air connecting pipe has the advantages of higher welding qualification rate and simple process; when the required liquid storage amount of the refrigerator is large (particularly, the liquid storage device on the evaporator cannot provide larger liquid storage volume due to the limited assembly space), the liquid storage structure can effectively complement the problem that the volume of the existing liquid storage device is not too large. In addition, the liquid storage structure can store liquid refrigerant, so that the liquid storage structure has a certain function of preventing the compressor from being impacted by liquid.
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 a schematic view of a prior art return air connection pipe;
fig. 2 is a schematic structural diagram of an air return connection pipe according to an embodiment of the present utility model.
1-a liquid storage structure in the figure; 2-flaring section; 3-an intermediate section; 4-plain end section.
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.
The existing return air connecting pipes are all copper light pipes, the diameters of the cross sections of the parts are basically consistent, and the return air connecting pipes lack the liquid storage function. The utility model provides a return air connecting pipe, wherein a liquid storage structure 1 is formed on the return air connecting pipe, and the liquid storage structure 1 can store liquid refrigerant. For example, when the refrigerating system on the refrigerator adopts the return air connecting pipe provided by the utility model and the required liquid storage amount of the refrigerator is smaller, the liquid storage structure 1 can replace a liquid storage device arranged on an evaporator, and has the advantages of higher welding qualification rate and simple process compared with the existing aluminum liquid storage device; when the required liquid storage amount of the refrigerator is large (particularly, the liquid storage device on the evaporator cannot provide larger liquid storage volume due to the limited assembly space), the liquid storage structure 1 can effectively supplement the problem that the volume of the existing liquid storage device is not too large. In addition, the liquid storage structure 1 can store liquid refrigerant, so that the compressor has a certain function of preventing liquid impact. Of course, the refrigerating system using the return connection pipe is not limited to be applied to only a refrigerator, but other temperature adjusting devices may be applied.
Regarding the specific structure of the return air connecting pipe, the pipe wall of the return air connecting pipe protrudes to a direction far away from the center of the return air connecting pipe to form a liquid storage structure 1. The return air connecting pipe has simple structure and is convenient for processing, production and manufacturing. Referring to fig. 2, a reservoir structure is schematically shown. The pipe wall of the return air connecting pipe protrudes outwards (far away from the central side of the return air connecting pipe) to form a liquid storage structure 1, and the cross section area of the liquid storage structure 1 is larger than that of other areas except the liquid storage structure 1 of the return air connecting pipe, so that the liquid storage structure 1 can form a liquid storage space.
Regarding the specific shape of the liquid storage structure 1, it is preferable that the outer side surface of the liquid storage structure 1 is spherical. Referring to fig. 2, the shape of the liquid storage structure 1 is schematically shown, and along a section passing through the central axis of the return air connecting pipe, the surface of the liquid storage structure 1 intersects with the section to form an arc shape. Of course, the outer side surface of the liquid storage structure 1 is not limited to be formed in a spherical shape, for example, a cross section passing through the central axis of the return air connecting pipe, and the surface of the liquid storage structure 1 intersects with the cross section to form a rectangle, a trapezoid, or the like.
In addition, as shown in fig. 2, the liquid storage structure 1 may be configured such that the liquid storage structure 1 protrudes from the return air connecting pipe along a circle of the return air connecting pipe; of course, the liquid storage structure 1 is not limited to the one circle of protruding air return connection pipe along the air return connection pipe, and for example, the liquid storage structure 1 may also be a half circle of protruding air return connection pipe along the air return connection pipe.
Regarding the number of the liquid storage structures 1, the number of the liquid storage structures 1 is one, or the number of the liquid storage structures 1 is more than two and the liquid storage structures are distributed at intervals along the length direction of the return air connecting pipe. The air return connecting pipe provided by the utility model is adopted for a refrigerating system on a refrigerator, and the liquid storage structure 1 can replace a liquid storage device arranged on an evaporator for the refrigerator model with smaller liquid storage capacity requirement so as to meet the liquid storage requirement of the refrigerating system, and the number of the liquid storage structures 1 is adjusted according to the liquid storage capacity requirement; the refrigerator type refrigerator with larger liquid storage capacity requirement, particularly the liquid storage device on the evaporator cannot provide larger liquid storage capacity due to the fact that the assembly space is limited, and the quantity of the liquid storage structures 1 can be adjusted according to the liquid storage capacity requirement.
Preferably, the return air connection pipe wall thickness is less than 0.75mm. Most of the existing return air connecting pipes have the wall thickness of 0.75mm, the thickness is relatively large, the cost is high, and the heat exchange effect of the refrigerant in the connecting pipes and the external environment is affected, so that the refrigerant which is not completely vaporized flows back to the compressor, and liquid impact is caused. Based on the above, the wall thickness of the return air connecting pipe provided by the utility model is smaller than 0.75mm. Preferably, the wall thickness of the return air connecting pipe is 0.65mm.
The wall of the return air connecting pipe is thinned, so that the material cost of the connecting pipe is effectively reduced, and the manufacturing cost of the refrigerator is reduced. Meanwhile, the heat exchange effect between the refrigerant in the pipe and the external environment is enhanced, so that the incompletely vaporized refrigerant remained in the pipe is evaporated and vaporized in an accelerating way, and the liquid impact risk of the compressor is effectively reduced.
Regarding the return air connecting pipe, the return air connecting pipe comprises a flaring section 2, a middle section 3 and a flat opening section 4, wherein the flaring section 2, the middle section 3 and the flat opening section 4 are sequentially connected, the flaring section 2 is used for being connected with a return air eduction tube, the flat opening section 4 is used for being connected with a compressor, and a liquid storage structure 1 is arranged on the middle section 3.
The flaring process is needed at one end of the flaring section 2 and the flat section 4 connected with the middle section 3, and then the flaring process and the two ends of the middle section 3 are respectively welded and connected. In order to ensure that gravity does not influence the liquid storage effect of the middle section 3, the section needs to be positioned at a low point during installation. Referring to fig. 1, a liquid storage structure 1 is schematically provided on an intermediate section 3. The return air connecting pipe is arranged into a structure with three sections connected, and the middle section 3 is of a straight pipe structure and is mainly used for facilitating processing of the liquid storage structure 1 on the middle section 3.
According to the thin-wall air return connecting pipe provided by the utility model, the liquid storage structure 1 is connected to the middle section of the pipeline, so that the heat exchange effect of the air return connecting pipe is enhanced, and the refrigerant which is not completely vaporized and flows back by the air return pipe assembly can be temporarily stopped and vaporized for the second time, so that the problem that the liquid impact of the compressor possibly occurs is effectively solved, and the liquid impact risk is reduced.
A compression refrigeration system comprises an air return connecting pipe provided by the utility model, one end of the air return connecting pipe is connected with a compressor of the compression refrigeration system, and the other end of the air return connecting pipe is connected with an air return pipe assembly. The specific structure of the return air connecting pipe is specifically stated above, and detailed description thereof is omitted here.
A refrigerator comprises the compression refrigeration system.
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 (9)
1. The air return connecting pipe is characterized in that a liquid storage structure (1) is formed on the air return connecting pipe, and the liquid storage structure (1) can store liquid refrigerant;
the liquid storage structure (1) is one, or the liquid storage structure (1) is more than two and is distributed at intervals along the length direction of the return air connecting pipe.
2. The return air connection pipe according to claim 1, wherein the pipe wall of the return air connection pipe protrudes away from the center of the return air connection pipe to form the liquid storage structure (1).
3. The return air connection pipe according to claim 1, characterized in that the outer side of the liquid storage structure (1) is spherical.
4. The return air connection tube of claim 1, wherein the return air connection tube wall thickness is less than 0.75mm.
5. The return air connection tube of claim 4 wherein the return air connection tube has a wall thickness of 0.65mm.
6. The return air connecting pipe according to claim 1, characterized in that the return air connecting pipe comprises a flaring section (2), a middle section (3) and a flat mouth section (4), wherein the flaring section (2), the middle section (3) and the flat mouth section (4) are sequentially connected, the flaring section (2) is used for being connected with a return air eduction tube, the flat mouth section (4) is used for being connected with a compressor, and the liquid storage structure (1) is arranged on the middle section (3).
7. The return air connection pipe according to claim 6, characterized in that the flaring section (2), the intermediate section (3) and the plain end section (4) are welded together, and the intermediate section (3) is of a straight pipe structure.
8. A compression refrigeration system comprising the return air connection of any one of claims 1-7, the return air connection being connected to a compressor of the compression refrigeration system.
9. A refrigerator comprising the compression refrigeration system of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303274.2U CN219607436U (en) | 2023-02-23 | 2023-02-23 | Return air connecting pipe, compression refrigerating system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303274.2U CN219607436U (en) | 2023-02-23 | 2023-02-23 | Return air connecting pipe, compression refrigerating system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219607436U true CN219607436U (en) | 2023-08-29 |
Family
ID=87753190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320303274.2U Active CN219607436U (en) | 2023-02-23 | 2023-02-23 | Return air connecting pipe, compression refrigerating system and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219607436U (en) |
-
2023
- 2023-02-23 CN CN202320303274.2U patent/CN219607436U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204063687U (en) | Heat exchanger and freezing cycle device | |
| US9546824B2 (en) | Heat exchanger | |
| US20120103581A1 (en) | Header unit and heat exchanger having the same | |
| CN102445100A (en) | Heat exchange tube unit, finned tube air-cooled condenser and cooling air evaporator | |
| CN102914097A (en) | Full-falling-film evaporator and water chilling unit | |
| WO2017221401A1 (en) | Refrigerant branching distributor, heat exchanger comprising same, and refrigeration cycle device | |
| CN219607436U (en) | Return air connecting pipe, compression refrigerating system and refrigerator | |
| WO2010026017A1 (en) | Refrigerator with heat exchanger | |
| CN215216776U (en) | Evaporator with a heat exchanger | |
| CN205316754U (en) | Fiber tube evaporator assembly | |
| CN202177262U (en) | Cage-type condenser and compression condensing unit applying same | |
| CN204880868U (en) | Heat exchanger and have air conditioning system of this heat exchanger | |
| CN210220379U (en) | Water chiller with evaporators connected in parallel by multiple compressors | |
| CN203572100U (en) | Partition board structure used for parallel flow evaporator | |
| CN205279530U (en) | Runway formula fiber tube evaporimeter | |
| US20060225460A1 (en) | Evaporator for a refrigeration appliance | |
| CN104034094B (en) | Inflation type evaporator and refrigeration equipment | |
| CN211424744U (en) | Double-system heat pump unit with symmetrical fluorine path structure | |
| CN214581935U (en) | Evaporator with evaporation outer tube and refrigeration equipment | |
| CN203572101U (en) | Parallel flow evaporator used for automobile air conditioner | |
| CN112460862B (en) | Liquid inlet device for shunting body and method and application thereof | |
| CN220398288U (en) | Flat pipe, flat pipe group, heat exchanger and air conditioner | |
| CN213273285U (en) | Direct-cooling evaporator tube and refrigeration evaporator thereof | |
| CN215675927U (en) | Ultrathin efficient finned evaporator and refrigerator | |
| CN218348939U (en) | A kind of refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |