CN113446747B

CN113446747B - Refrigerating system and refrigerator

Info

Publication number: CN113446747B
Application number: CN202010230318.4A
Authority: CN
Inventors: 万彦斌; 陈建全; 刘建如
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2022-11-18
Anticipated expiration: 2040-03-27
Also published as: CN113446747A

Abstract

The invention provides a refrigeration system and a refrigerator, comprising a capillary tube and an evaporator, wherein the refrigeration system further comprises: the silencer is arranged between the capillary tube and the evaporator and comprises a shell, an inlet pipeline and an outlet pipeline, and the inlet pipeline and the outlet pipeline are respectively communicated with a silencing cavity in the shell; the first partition plate divides the silencing cavity into a first cavity and a second cavity which are adjacent up and down and are communicated with each other; the second partition plate divides the second chamber into a third chamber and a fourth chamber which are adjacent left and right and are communicated with each other; wherein a first end of the inlet pipeline is inserted into the first chamber, a second end of the outlet pipeline is inserted into one of the third chamber and the fourth chamber, and the first end and the second end are positioned on the same side of the central axis of the shell.

Description

Refrigerating system and refrigerator

Technical Field

The invention relates to the technical field of refrigeration, in particular to a refrigeration system suitable for a refrigerator.

Background

In general, a refrigeration cycle is configured such that refrigerant discharged from a compressor passes through a condenser, a throttle device, and an evaporator and returns to the compressor again.

Among them, the operating noise of the compressor and the blower fan and the pipeline noise generated by the refrigerant flowing in the circulation pipeline are the main sources of the refrigerator noise, and the most important of the pipeline noise is the eruption noise of the refrigerant. At present, the eruption noise of the refrigerator pipeline is mainly reduced by attaching the vibration reduction daub. However, the method has the problem that the vibration-damping daub falls off, so that the noise reduction effect is poor.

Disclosure of Invention

The invention aims to overcome the problem of high eruption noise of a refrigerant in a refrigerating system of a refrigerator.

The invention provides a refrigeration system comprising a capillary tube and an evaporator, the refrigeration system further comprising: the silencer is arranged between the capillary tube and the evaporator and comprises a shell, an inlet pipeline and an outlet pipeline, and the inlet pipeline and the outlet pipeline are respectively communicated with a silencing cavity in the shell; the first partition plate divides the silencing cavity into a first cavity and a second cavity which are adjacent up and down and are mutually communicated, the first cavity is positioned at the upper part of the silencing cavity, and the second cavity is positioned at the lower part of the silencing cavity; the second partition plate divides the second chamber into a third chamber and a fourth chamber which are adjacent left and right and are mutually communicated, the third chamber is positioned at the right lower part of the silencing cavity, and the fourth chamber is positioned at the left lower part of the silencing cavity; wherein a first end of the inlet line is inserted into the first chamber, a second end of the outlet line is inserted into one of the third chamber and the fourth chamber, and the first end and the second end are located on the same side of the central axis of the housing.

As an optional technical solution, the device further comprises a porous structure, wherein the porous structure is arranged at the first end, the porous structure is provided with a cavity and an outer wall arranged around the cavity, and the outer wall is provided with a plurality of first through holes; wherein the plurality of first through holes communicate the inlet line, the cavity, and the first chamber with each other.

As an optional technical solution, the porous structure is a hemispherical structure or a spherical structure.

As an optional technical solution, the plurality of first through holes are uniformly distributed on the outer wall, and the distribution density of the plurality of first through holes on the outer wall is greater than 10%.

As an optional technical solution, a plurality of second through holes are provided in the second partition plate, and the third chamber and the fourth chamber are communicated with each other through the plurality of second through holes.

As an optional technical solution, the plurality of second through holes are uniformly distributed on the second partition plate, and the distribution density of the plurality of second through holes on the second partition plate is greater than 10%.

As an optional technical solution, the diameter of each first through hole and each second through hole is less than or equal to 0.5 mm.

As an optional technical solution, a through hole is disposed on the first partition plate, and the through hole is disposed away from the first end of the inlet pipeline and the second end of the outlet pipeline, so that the flow direction of the refrigerant in the first chamber is staggered with the flow direction of the refrigerant in the second chamber.

As an optional technical solution, the second end of the outlet pipeline is inserted into the third chamber or the fourth chamber from the annular side wall of the housing, and the third end of the inlet pipeline and the fourth end of the outlet pipeline are respectively located on the same side of the central axis of the housing; wherein the third end is in communication with the capillary tube and the fourth end is in communication with the evaporator.

The invention also provides a refrigerator which comprises the refrigeration system.

Compared with the prior art, the refrigeration system and the refrigerator provided by the invention have the advantages that the silencer is arranged between the evaporator and the capillary tube in the refrigeration system, and the outlet pipeline of the silencer is provided with the porous structure, so that bubbles in the refrigerant are eliminated, and the sound of the sprayed gas is reduced. In addition, the silencing cavity is divided into a plurality of chambers, so that the refrigerant flows in a staggered mode, sound energy is reduced, and the aim of silencing is achieved.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is a schematic diagram of a refrigeration system of the present invention.

Fig. 2 is a schematic view of a muffler in an embodiment of the present invention.

Fig. 3 and 4 are different schematic cross-sectional views of the silencer of fig. 2.

Fig. 5 is a schematic view of a muffler in another embodiment of the present invention.

Fig. 6 and 7 are different schematic cross-sectional views of the silencer of fig. 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the refrigeration system 10 includes a compressor 1, a condenser 2, a capillary tube 3, and an evaporator 5 connected in sequence by a pipeline, a dry filter 4 is disposed between the capillary tube 3 and the condenser 2, and a muffler 6 is disposed between the capillary tube 3 and the evaporator 5. The refrigerant is discharged after being compressed by the compressor 1, enters the condenser 2 for condensation, is dried by the drying filter 4, enters the capillary tube 3 for throttling, is silenced by the silencer 6, enters the evaporator 5 for evaporation, and finally flows into the compressor 1 to realize refrigeration cycle.

Fig. 2 is a schematic view of a silencer according to an embodiment of the present invention, and fig. 3 and 4 are different cross-sectional views of the silencer in fig. 2, respectively.

The silencer 6 comprises a shell 61, an inlet pipeline 62 and an outlet pipeline 63, wherein the inlet pipeline 62 is communicated with a silencing cavity and the capillary tube 3 in the shell 61; the outlet pipe 63 communicates the muffler chamber inside the casing 61 with the evaporator 5; wherein part of the inlet line 62 and part of the outlet line 63 are inserted into the sound-damping chamber, respectively.

The inlet pipe 62 is provided with a porous structure 64 at a first end, the porous structure 64 is located in the sound-deadening chamber, the porous structure 64 includes a cavity 642 and an outer wall 641 surrounding the cavity 642, the outer wall 641 is provided with a plurality of first through holes 643, and the plurality of first through holes 643 enable the inlet pipe 62, the cavity 642 and the sound-deadening chamber to communicate with each other.

In a preferred embodiment, the porous structure 64 is, for example, a hemispherical structure or a spherical structure welded to the first end of the inlet pipe 62, or the hemispherical structure or the spherical structure and the first end of the inlet pipe 62 are integrally formed. Preferably, the porous structure 64 is made of the same material as the inlet line 62, such as a metal material.

In a preferred embodiment, the diameter of each first through hole 643 is less than or equal to 0.5 mm; the distribution density of the plurality of first through holes 643 on the sidewall 641 is greater than 10%; the plurality of first through holes 643 are uniformly distributed on the sidewall 641.

In this example, the refrigerant entering the sound-deadening chamber from the inlet pipe 62 passes through the porous structure 64 on the first end of the inlet pipe 62, and the air bubbles in the refrigerant, which are wrapped in the liquid refrigerant, are broken by the cavity 642 and the first through holes 643 in the porous structure 64, thereby reducing the burst noise generated by the refrigerant.

As shown in fig. 2 and 3, the housing 61 of the muffler 6 is a hollow cylindrical structure, and includes an annular side wall, and a top plane and a bottom plane located at both ends of the annular side wall, wherein the annular side wall, the top plane and the bottom plane enclose the sound-deadening chamber.

A first end of the inlet conduit 62 is inserted into the muffling chamber from the top plane, a second end of the outlet conduit 63 is inserted into the muffling chamber from the annular side wall, and the outlet conduit 63 is close to the bottom plane. In this embodiment, the inlet line 62 is located to the left of the centerline axis C of the hollow cylindrical structure and the outlet line 63 is located to the right of the centerline axis C of the hollow cylindrical structure, i.e., refrigerant enters the muffling chamber from the inlet line 62 at the top of the left side of the muffler 6 and exits through the outlet line 63 at the bottom of the right side. The structure of left-in and right-out increases the flow path of the refrigerant, reduces the sound energy of the refrigerant, reduces the flow noise and achieves the effect of noise elimination.

In other embodiments of the present invention, the inlet pipeline is located on the right side of the centerline axis C of the hollow cylindrical structure, and the outlet pipeline is located on the left side of the centerline axis C of the hollow cylindrical structure, that is, the refrigerant enters the silencing chamber from the inlet pipeline at the top of the right side of the silencer and flows out through the outlet pipeline at the bottom of the left side, so that the flow path of the refrigerant can be increased, the sound energy of the refrigerant can be reduced, the flow noise can be reduced, and the silencing effect can be achieved.

Further, a first partition plate 65 is disposed in the sound-deadening cavity, the first partition plate 65 divides the sound-deadening cavity into a first chamber 611 and a second chamber 612 which are adjacent to each other up and down, wherein a through hole 651 is disposed at a position on the left side of the first partition plate 65 close to the annular side wall, and the first chamber 611 and the second chamber 612 are communicated with each other through the through hole 651.

Preferably, the first end of the inlet pipe 62 is located at the left side of the centerline axis C of the hollow cylindrical structure, the second end of the outlet pipe 63 is also located at the left side of the centerline axis C of the hollow cylindrical structure, and the through hole 651 is located at the right side of the centerline axis C of the hollow cylindrical structure. When the refrigerant enters the porous structure 64 from the first end of the outlet pipe 62, the refrigerant enters the first chamber 611 from the first through hole 643, flows towards the right side, flows into the second chamber 612 through the through hole 651, continues to flow towards the left side of the second chamber 612, and flows out from the second end of the outlet pipe 63 located at the left side of the second chamber 612. At this time, the flow direction of the refrigerant in the first chamber 611 (from left to right) is opposite to the flow direction of the refrigerant in the second chamber 612 (from right to left), and the staggered flow direction further increases the flow path of the refrigerant, reduces the sound energy of the refrigerant, reduces the flow noise, and achieves the silencing effect.

That is, when the first end of the outlet pipe 62 and the second end of the outlet pipe 63 are both located on the same side of the centerline axis C of the muffler, and the through holes of the first partition plate 65 for separating the sound-deadening chambers are located on the opposite side of the centerline axis C of the muffler, the flow path of the refrigerant can be effectively increased, the sound energy of the refrigerant is reduced, the flow noise is reduced, and the sound-deadening effect is achieved. Wherein a first end of the outlet line 62 is disposed in the first chamber 611 and a second end of the outlet line 63 is disposed in the second chamber 612.

In one embodiment, the first end of outlet conduit 62 and the second end of outlet conduit 63 are both located to the left of centerline axis C of the muffler, and the perforations in first partition 65, which separates the muffling chambers, are located to the right of centerline axis C of the muffler; alternatively, the first end of outlet conduit 62 and the second end of outlet conduit 63 are both located to the right of the centerline axis C of the muffler, and the perforations in first partition 65, which separates the muffling chambers, are located to the left of the centerline axis C of the muffler.

In addition, after the silencing cavity is divided into the first cavity 611 and the second cavity 612 which are overlapped up and down and are communicated with each other through the first partition plate 65, when the refrigerant flows through the silencing cavity, the separation of gas refrigerant and liquid refrigerant in the refrigerant is facilitated, the gas refrigerant is prevented from being wrapped by the liquid refrigerant, bubble sound is generated, and noise is reduced.

The first partition plate 65 is, for example, a metal partition plate including, but not limited to, a copper partition plate, a stainless steel partition plate, or the like, and the first partition plate 65 is welded to the inside of the annular side wall.

As shown in fig. 2 to 4, the third end of the inlet pipe 62 and the fourth end of the outlet pipe 63 in the muffler 6 are located on the left and right sides (or different sides) of the center axis C, respectively; wherein, the third end is communicated with the capillary tube 3, and the fourth end is communicated with the evaporator 5. That is, the third end of the inlet pipe 62 and the fourth end of the outlet pipe 63 of the muffler 6 extend toward both sides of the central axis C, respectively, and the second end of the outlet pipe 63 is inserted into the second chamber 612 by a long distance, so that the distance of the refrigerant flowing is long, which has a beneficial effect on the reduction of noise.

FIG. 5 is a schematic view of a muffler in another embodiment of the present invention; fig. 6 and 7 are different schematic cross-sectional views of the silencer of fig. 5. In fig. 5 to 7, the same reference numerals as in fig. 2 to 4 denote the same elements, and have similar functions, which are not repeated herein.

The silencer 6 'shown in fig. 5 to 7 differs from the silencer 6 shown in fig. 2 to 4 in the structure of the sound-deadening chamber of the silencer 6' and in the position of the outlet line 67.

As shown in fig. 5 to 7, the housing 61 of the silencer 6' is a hollow cylindrical structure, and includes an annular side wall, and a top plane and a bottom plane located at both ends of the annular side wall, wherein the annular side wall, the top plane and the bottom plane enclose the silencing chamber.

A first end of the inlet conduit 62 is inserted into the muffling chamber from the top plane, a second end of the outlet conduit 67 is inserted into the muffling chamber from the annular side wall, and the outlet conduit 63 is close to the bottom plane. In this embodiment, the inlet line 62 and the outlet line 67 are each located to the left of the centerline axis C of the hollow cylindrical structure.

The sound-deadening cavity is internally provided with a first partition plate 65 and a second partition plate 66 which are vertical to each other, wherein the first partition plate 65 divides the sound-deadening cavity into a first chamber 611 and a second chamber 612 which are adjacent to each other up and down and communicated with each other, and the second partition plate 66 divides the third chamber 613 into a third chamber 613 and a fourth chamber 614 which are adjacent to each other left and right and communicated with each other. Preferably, the second partition plate 66 is a porous partition plate including a plurality of second through holes 661, the plurality of second through holes 661 communicating the third chamber 613 and the fourth chamber 614 with each other.

In a preferred embodiment, the diameter of the second through hole 661 is 0.5 mm or less; the distribution density of the plurality of second through holes 661 on the second partition plate 66 is 10% or more; the second through holes 661 are uniformly distributed on the second partition plate 66.

In a preferred embodiment, the second diaphragm 66 is a metal porous diaphragm, such as a copper porous diaphragm, a stainless steel porous diaphragm, or the like. The second partition plate 66 is joined to the top of the first partition plate 65 and the inside of the annular side wall of the housing 61 by welding.

In this embodiment, the second end of the outlet line 67 is inserted into the fourth chamber 614, i.e., the first end of the inlet line 62 and the second end of the outlet line 67 are respectively located on the left side of the central axis C; and the through hole 651 on the first partition 65 is located at the right side of the central axis C, so that the first chamber 611 is communicated with the third chamber 613. In other words, the through hole 651 is disposed away from the first end of the inlet pipe 62 and the second end of the outlet pipe 67, so that the flow direction of the refrigerant in the first chamber 611 is staggered with the flow direction in the second chamber 612, extending the flow path of the refrigerant.

When the refrigerant enters the cavity 642 of the porous structure 64 from the first end of the inlet pipe 62, it enters the first chamber 611 at the upper part of the muffling chamber through the first through hole 642, flows toward the right side through the through hole 651 of the first partition 65 into the third chamber 613 at the lower right part of the muffling chamber, then flows through the plurality of through holes 661 of the second partition 66 toward the fourth chamber 614 at the lower left part of the muffling chamber, and finally flows out through the second end of the outlet pipe 67 and enters the evaporator 5.

The silencing cavity is divided into a plurality of chambers by the first partition plate 65 and the second partition plate 66, so that the refrigerant flows in the chambers in a staggered manner, the sound energy of the refrigerant is reduced, the flow noise is reduced, and the silencing effect is achieved. Furthermore, when the refrigerant flows through the first chamber, the third chamber and the fourth chamber in sequence, the separation of gas refrigerant and liquid refrigerant in the refrigerant is facilitated, the phenomenon that the gas refrigerant is wrapped by the liquid refrigerant to generate bubble sound is avoided, and noise is reduced.

In addition, the bubbles contained in the refrigerant are broken many times by the plurality of first through holes 643 of the porous structure 64 and the plurality of through holes 661 of the second partition plate 66, so that the sound of the jetted gas is not easily generated, and the purpose of reducing the noise is achieved.

In other embodiments of the invention, the first end of the inlet line and the second end of the outlet line are each located to the right of the central axis C; and the through hole on the first partition plate is positioned on the left side of the central axis C, so that the first chamber is communicated with the third chamber. When the refrigerant flows into the first chamber from the porous structure on the first end of the inlet pipeline on the right side of the upper part of the silencing cavity in sequence, flows towards the left side along the first partition plate, flows into the through hole on the left side, enters the third chamber on the left lower part of the silencing cavity, flows towards the right side, enters the fourth chamber on the right lower part of the silencing cavity, flows out of the second end of the outlet pipeline in the fourth chamber, and enters the evaporator. The staggered flow direction can also enlarge the flow path of the refrigerant, reduce the sound energy of the refrigerant, reduce the flow noise and achieve the effect of noise elimination.

As shown in fig. 5 to 7, the third end of the inlet pipe 62 and the fourth end of the outlet pipe 67 in the muffler 6' are located on the left side (or the same side) of the central axis C, respectively; wherein the third end is communicated with the capillary tube 3, and the fourth end is communicated with the evaporator 5. I.e. the outlet conduit 62 and the outlet conduit 67 extend on the same side of the median axis C, the outlet conduit 67 of the muffler 6 'is inserted into the fourth chamber 614 over a small length, i.e. the muffler 6' can be made smaller in size, resulting in a smaller overall size.

The present invention also provides a refrigerator comprising a refrigeration system 10 as described above.

In conclusion, according to the refrigeration system and the refrigerator provided by the invention, the silencer is arranged between the evaporator and the capillary tube in the refrigeration system, and the outlet pipeline of the silencer is provided with the porous structure, so that bubbles in the refrigerant are eliminated, and the sound of the sprayed gas is reduced. In addition, the silencing cavity is divided into a plurality of chambers, so that the refrigerant flows in a staggered mode, sound energy is reduced, and the aim of silencing is achieved.

The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A refrigeration system comprising a capillary tube and an evaporator, the refrigeration system further comprising:

the silencer is arranged between the capillary tube and the evaporator and comprises a shell, an inlet pipeline and an outlet pipeline, and the inlet pipeline and the outlet pipeline are respectively communicated with a silencing cavity in the shell;

the first partition plate divides the silencing cavity into a first cavity and a second cavity which are adjacent up and down and are mutually communicated, the first cavity is positioned at the upper part of the silencing cavity, and the second cavity is positioned at the lower part of the silencing cavity; and

the second partition plate divides the second chamber into a third chamber and a fourth chamber which are adjacent left and right and are mutually communicated, the third chamber is positioned at the right lower part of the silencing cavity, and the fourth chamber is positioned at the left lower part of the silencing cavity;

wherein a first end of the inlet conduit is inserted into the first chamber, a second end of the outlet conduit is inserted into one of the third chamber and the fourth chamber, and the first end and the second end are located on the same side of a central axis of the housing;

the first partition plate is provided with a through hole, and the through hole is arranged away from the first end of the inlet pipeline and the second end of the outlet pipeline, so that the flow direction of the refrigerant in the first chamber is staggered with the flow direction of the refrigerant in the second chamber;

the second end of the outlet pipeline is inserted into the third chamber or the fourth chamber from the annular side wall of the shell, and the third end of the inlet pipeline and the fourth end of the outlet pipeline are respectively positioned on the same side of the central axis of the shell; wherein the third end is in communication with the capillary tube and the fourth end is in communication with the evaporator.

2. The refrigerant system as set forth in claim 1, further including a porous structure disposed at said first end, said porous structure having a cavity and an outer wall disposed about said cavity, said outer wall having a plurality of first through-holes disposed therein; wherein the plurality of first through holes communicate the inlet line, the cavity, and the first chamber with each other.

3. The refrigeration system of claim 2 wherein said porous structure is a hemispherical structure or a spherical structure.

4. The refrigeration system according to claim 2, wherein the plurality of first through holes are uniformly distributed on the outer wall, and a distribution density of the plurality of first through holes on the outer wall is greater than 10%.

5. The refrigeration system according to claim 2 wherein a second plurality of through-holes are provided in said second partition, said second plurality of through-holes communicating said third chamber with said fourth chamber.

6. The refrigeration system according to claim 5, wherein the plurality of second through holes are uniformly distributed on the second partition plate, and the distribution density of the plurality of second through holes on the second partition plate is greater than 10%.

7. The refrigeration system according to claim 5, wherein each of the first through holes and each of the second through holes has a diameter of 0.5 mm or less.

8. A refrigerator comprising a refrigeration system, characterized in that the refrigeration system is a refrigeration system according to any one of claims 1 to 7.