CN113446747B - Refrigeration Systems and Refrigerators - Google Patents

Abstract

The present invention provides a refrigeration system and a refrigerator, including a capillary tube and an evaporator. The refrigeration system further includes: a muffler arranged between the capillary tube and the evaporator, and the muffler includes a shell, An inlet pipeline and an outlet pipeline, the inlet pipeline and the outlet pipeline communicate with the sound-absorbing chamber inside the shell respectively; a first partition, the first partition separates the sound-absorbing chamber into upper and lower a first chamber and a second chamber that are adjacent and communicate with each other; and a second partition that divides the second chamber into a third chamber and a second chamber that are adjacent to each other and communicate with each other. Four chambers; wherein the first end of the inlet line is inserted into the first chamber and the second end of the outlet line is inserted into one of the third and fourth chambers , and the first end and the second end are located on the same side of the central axis of the housing.

Description

Refrigeration Systems and Refrigerators

technical field

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

Background technique

In general, the refrigeration cycle is constituted by the refrigerant discharged from the compressor passing through the condenser, throttling device, evaporator and returning to the compressor again.

Among them, the working noise of the compressor and fan and the pipeline noise generated by the refrigerant flowing in the circulation pipeline are the main sources of refrigerator noise, and the most important pipeline noise is the refrigerant eruption noise. At present, the emission noise of refrigerator pipelines is mainly reduced by attaching vibration-damping cement. However, in this method, there is a problem that the damping cement falls off, so the noise reduction effect is not good.

Contents of the invention

The object of the present invention is to overcome the problem that the refrigerant spraying noise is large in the refrigeration system of the refrigerator.

The present invention provides a refrigeration system, which includes a capillary tube and an evaporator, and the refrigeration system further includes: a muffler arranged between the capillary tube and the evaporator, and the muffler includes a shell, an inlet pipe Road and outlet pipeline, the inlet pipeline and the outlet pipeline are respectively connected with the silencer chamber inside the shell; the first partition, the first partition separates the silencer chamber into adjacent up and down and a first chamber and a second chamber communicated with each other, the first chamber is located at the upper part of the sound-absorbing chamber, the second chamber is located at the lower part of the sound-absorbing chamber; and the second partition, the The second partition divides the second chamber into a third chamber and a fourth chamber which are left and right adjacent and communicate with each other. The third chamber is located at the lower right part of the sound-absorbing chamber. The chamber is located at the lower left part of the muffler chamber; wherein, the first end of the inlet line is inserted into the first chamber, and the second end of the outlet line is inserted into the third chamber and the One of the fourth chambers, 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, it also includes a porous structure, the porous structure is arranged at the first end, the porous structure has a cavity and an outer wall surrounding the cavity, and a plurality of first through holes; wherein, the plurality of first through holes make the inlet pipeline, the cavity and the first chamber communicate 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 on the second partition, and the plurality of second through holes make the third chamber and the fourth chamber communicate with each other.

As an optional technical solution, the plurality of second through holes are evenly distributed on the second separator, and the distribution density of the plurality of second through holes on the second separator 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 set on the first partition, and the through hole is set away from the first end of the inlet pipeline and the second end of the outlet pipeline, so that the refrigerant flows through the The flow direction in the first chamber and the flow direction in the second chamber are staggered.

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 The fourth ends of the outlet pipelines are respectively located on the same side of the central axis of the housing; wherein, the third ends communicate with the capillary, and the fourth ends communicate with the evaporator.

The present invention also provides a refrigerator, which includes a refrigeration system, and the refrigeration system is the above refrigeration system.

Compared with the prior art, in the refrigeration system and refrigerator provided by the present invention, a muffler is arranged between the evaporator and the capillary in the refrigeration system, and a porous structure is arranged on the outlet pipeline of the muffler to eliminate bubbles in the refrigerant and reduce the sound of erupting gas. . In addition, the sound-absorbing cavity is divided into multiple chambers so that the refrigerant circulates in a cross-flow manner, reducing the sound energy and achieving the purpose of noise reduction.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

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

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

Fig. 3 and Fig. 4 are respectively different cross-sectional schematic diagrams of the muffler in Fig. 2 .

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

Fig. 6 and Fig. 7 are respectively different cross-sectional schematic diagrams of the muffler in Fig. 5 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

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

As shown in Figure 1, the refrigeration system 10 includes a compressor 1, a condenser 2, a capillary tube 3, and an evaporator 5 connected in sequence through pipelines, a dry filter 4 is arranged between the capillary tube 3 and the condenser 2, and the capillary tube 3 and the evaporator A muffler 6 is arranged between the devices 5. Among them, the refrigerant is discharged from the compressor 1 after being compressed, enters the condenser 2 to condense, and then passes through the dry filter 4 to dry, enters the capillary tube 3 to throttle, passes through the muffler 6, and enters the evaporator 5 to evaporate , and finally flow into the compressor 1 to realize the refrigeration cycle.

Fig. 2 is a schematic diagram of the muffler in an embodiment of the present invention, and Fig. 3 and Fig. 4 are respectively different cross-sectional schematic diagrams of the muffler in Fig. 2 .

The muffler 6 includes a shell 61, an inlet pipeline 62 and an outlet pipeline 63, and the inlet pipeline 62 communicates with the muffler chamber and the capillary 3 inside the housing 61; the outlet pipeline 63 communicates with the muffler chamber and the evaporator 5 inside the housing 61; wherein, A part of the inlet pipeline 62 and a part of the outlet pipeline 63 are respectively inserted into the muffler cavity.

A porous structure 64 is arranged on the first end of the inlet pipeline 62, and the porous structure 64 is located in the sound-absorbing cavity. The porous structure 64 includes a cavity 642 and an outer wall 641 arranged around the cavity 642, and a plurality of first through holes 643 are arranged on the outer wall 641. , a plurality of first through holes 643 make the inlet pipeline 62, the cavity 642 and the sound-absorbing chamber communicate with each other.

In a preferred embodiment, the porous structure 64 is, for example, a hemispherical structure or a spherical structure, and the hemispherical structure or the spherical structure is welded to the first end of the inlet pipeline 62, or the hemispherical structure or the spherical structure and the inlet pipeline The first end of 62 is integrally formed. Preferably, the material of the porous structure 64 is the same as that of the inlet pipe 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 multiple first through holes 643 on the side wall 641 is greater than 10%; the multiple first through holes 643 are evenly distributed on the side wall 641 .

In this example, the refrigerant entering the muffler chamber from the inlet pipeline 62 first passes through the porous structure 64 on the first end of the inlet pipeline 62, and passes through the cavity 642 and the plurality of first through holes 643 in the porous structure 64. The bubbles wrapped in the liquid refrigerant in the refrigerant can be broken, thereby reducing the eruption noise generated by the refrigerant.

As shown in Figures 2 and 3, the shell 61 of the muffler 6 is a hollow cylindrical structure, including an annular side wall and a top plane and a bottom plane positioned at two ends of the annular side wall, wherein the annular side wall, the top The plane and the bottom plane cover the sound-absorbing cavity.

The first end of the inlet pipe 62 is inserted into the muffler chamber from the top plane, the second end of the outlet pipe 63 is inserted into the muffler chamber from the annular side wall, and the outlet pipe 63 is close to the bottom plane. In this embodiment, the inlet pipeline 62 is located on the left side of the central axis C of the hollow cylindrical structure, and the outlet pipeline 63 is located on the right side of the central axis C of the hollow cylindrical structure, that is, the refrigerant flows from the muffler 6 The inlet pipe 62 at the top on the left enters the muffler cavity, and flows out through the outlet pipe 63 at the bottom on the right. This "left in and right out" structure increases the flow path of the refrigerant, reduces the sound energy of the refrigerant, reduces the flow noise, and achieves the effect of noise reduction.

In other embodiments of the present invention, the inlet pipeline is located on the right side of the central axis C of the hollow cylindrical structure, and the outlet pipeline is located on the left side of the central axis C of the hollow cylindrical structure, that is, the refrigerant flows from the muffler The inlet pipe at the top on the right enters the muffler chamber, and flows out through the outlet pipe at the bottom on the left, which can also increase the flow path of the refrigerant, reduce the sound energy of the refrigerant, reduce the flow noise, and achieve the effect of noise reduction. Effect.

Further, a first partition 65 is arranged in the sound-absorbing chamber, and the first partition 65 divides the sound-absorbing chamber into a first chamber 611 and a second chamber 612 adjacent up and down, wherein the left side of the first partition 65 is close to the ring A through hole 651 is provided at the position of the shaped side wall, and the through hole 651 makes the first chamber 611 and the second chamber 612 communicate with each other.

Preferably, the first end of the inlet pipeline 62 is located on the left side of the central axis C of the hollow cylindrical structure, and the second end of the outlet pipeline 63 is also located on the left side of the central axis C of the hollow cylindrical structure, and The through hole 651 is located on 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 , enters the first chamber 611 from the first through hole 643 , flows toward the right side, and flows into the second chamber 612 through the through hole 651 . Continue to flow toward the left side of the second chamber 612 , and flow out from the second end of the outlet line 63 located on 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 in the second chamber 612 (from right to left), and this staggered flow direction further increases the flow direction of the refrigerant. The circulation path reduces the sound energy of the refrigerant, reduces the flow noise, and achieves the effect of noise reduction.

That is, when the first end of the outlet pipeline 62 and the second end of the outlet pipeline 63 are located on the same side of the central line axis C of the muffler, and the through hole on the first partition 65 used to separate the muffler cavity is located The opposite side of the central line axis C of the device can effectively increase the circulation path of the refrigerant, reduce the sound energy of the refrigerant, reduce the flow noise, and achieve the effect of noise reduction. Wherein, the first end of the outlet pipeline 62 is arranged in the first chamber 611 , and the second end of the outlet pipeline 63 is arranged in the second chamber 612 .

In one embodiment, both the first end of the outlet pipeline 62 and the second end of the outlet pipeline 63 are located on the left side of the central line axis C of the muffler, and are used to separate the through holes on the first partition 65 of the muffler cavity. Located on the right side of the central axis C of the muffler; or, the first end of the outlet pipeline 62 and the second end of the outlet pipeline 63 are both located on the right side of the central axis C of the muffler, for separating the first end of the muffler chamber. The through hole on the partition 65 is located on the left side of the central line axis C of the muffler.

In addition, after the first partition 65 separates the muffler chamber into a first chamber 611 and a second chamber 612 that are stacked up and down and communicate with each other, when the refrigerant flows through the muffler chamber, it helps the gas in the refrigerant Refrigerant and liquid refrigerant are separated to avoid bubble sound caused by liquid refrigerant wrapping gas refrigerant and reduce noise.

In addition, the first partition 65 is, for example, a metal partition including but not limited to a copper partition, a stainless steel partition, etc., and the first partition 65 is welded to the inner side of the annular side wall.

As shown in Figures 2 to 4, the third end of the inlet pipeline 62 and the fourth end of the outlet pipeline 63 in the muffler 6 are respectively located on the left and right (or different sides) of the central axis C; wherein, the first Three ends communicate with the capillary 3, and the fourth end communicates with the evaporator 5. That is, the third end of the inlet pipeline 62 and the fourth section of the outlet pipeline 63 of the muffler 6 respectively extend toward both sides of the central axis C, and the second end of the outlet pipeline 63 is inserted into the second chamber 612 for a distance of Longer, so that the distance of the refrigerant flow is long, which has a beneficial effect on reducing noise.

Fig. 5 is a schematic diagram of a muffler in another embodiment of the present invention; Fig. 6 and Fig. 7 are respectively different cross-sectional schematic diagrams of the muffler in Fig. 5 . Wherein, the same reference numerals in FIG. 5 to FIG. 7 and those in FIG. 2 to FIG. 4 represent the same components and have similar functions, and will not be repeated here.

The difference between the silencer 6' shown in Figures 5 to 7 and the silencer 6 shown in Figures 2 to 4 is that the structure of the silencer chamber of the silencer 6' is different, and the position of the outlet pipe 67 is different.

As shown in Figures 5 to 7, the shell 61 of the muffler 6' is a hollow cylindrical structure, including 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 cover the sound-absorbing cavity.

The first end of the inlet pipe 62 is inserted into the muffler chamber from the top plane, the second end of the outlet pipe 67 is inserted into the muffler chamber from the annular side wall, and the outlet pipe 63 is close to the bottom plane. In this embodiment, the inlet pipe 62 and the outlet pipe 67 are respectively located on the left side of the central axis C of the hollow cylindrical structure.

A first partition 65 and a second partition 66 perpendicular to each other are provided in the sound-absorbing chamber, wherein the first partition 65 separates the sound-absorbing chamber into a first chamber 611 and a second chamber 612 which are adjacent and connected up and down. , the second partition 66 divides the third chamber 613 into a third chamber 613 and a fourth chamber 614 which are left and right adjacent and connected. Preferably, the second partition 66 is a porous partition, which includes a plurality of second through holes 661 , and the plurality of second through holes 661 make the third chamber 613 and the fourth chamber 614 communicate with each other.

In a preferred embodiment, the diameter of the second through hole 661 is less than or equal to 0.5 mm; the distribution density of the plurality of second through holes 661 on the second separator 66 is greater than or equal to 10%; the plurality of second through holes 661 Evenly distributed on the second separator 66.

In a preferred embodiment, the second separator 66 is a metal porous separator, such as a copper porous separator, a stainless steel porous separator, and the like. The second partition 66 is welded to the top of the first partition 65 and the inner side of the annular sidewall of the housing 61 .

In this embodiment, the second end of the outlet pipeline 67 is inserted into the fourth chamber 614, that is, the first end of the inlet pipeline 62 and the second end of the outlet pipeline 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 on the right side of the central axis C, so that the first chamber 611 communicates 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 and the flow direction in the second chamber 612 are staggered, The refrigerant flow path is extended.

When the refrigerant enters the cavity 642 of the porous structure 64 from the first end of the inlet pipe 62, enters the first chamber 611 on the upper part of the muffler chamber through the first through hole 642, and flows to the right side through the first separator 65 The through hole 651 on the top enters the third chamber 613 at the lower right part of the muffler chamber, passes through a plurality of through holes 661 on the second partition 66, flows toward the fourth chamber 614 at the lower left part of the muffler chamber, and finally passes through the outlet The second end of line 67 exits into evaporator 5 .

The anechoic cavity is divided into multiple chambers through the first partition 65 and the second partition 66, so that the refrigerant flows in a staggered direction in the multiple chambers, which reduces the sound energy of the refrigerant and reduces the flow noise, achieving Noise reduction effect. Further, when the refrigerant flows through the first, third and fourth chambers in sequence, it helps to separate the gas refrigerant and liquid refrigerant in the refrigerant, avoiding the sound of bubbles caused by the liquid refrigerant wrapping the gas refrigerant, and reducing noise .

In addition, the plurality of first through holes 643 of the porous structure 64 and the plurality of through holes 661 of the second partition 66 are used to break up the air bubbles wrapped in the refrigerant for many times, so that the sound of erupting gas is not easy to be generated, and the purpose of reducing noise is achieved. .

In other embodiments of the present invention, the first end of the inlet pipeline and the second end of the outlet pipeline are respectively located on the right side of the central axis C; and the through hole on the first partition is located on the left side of the central axis C, so that The first chamber communicates with the third chamber. When the refrigerant sequentially 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 muffler chamber, flows along the first partition towards the left, and enters the muffler through the through hole on the left side. In the third chamber at the lower left of the chamber, it flows to the right, enters the fourth chamber at the lower right of the muffler chamber, and flows out from the second end of the outlet pipe in the fourth chamber to enter the evaporator. This staggered flow direction can also increase the circulation path of the refrigerant, reduce the sound energy of the refrigerant, reduce the flow noise, and achieve the effect of noise reduction.

As shown in Figures 5 to 7, the third end of the inlet pipeline 62 and the fourth end of the outlet pipeline 67 in the muffler 6' are respectively located on the left side (or the same side) of the central axis C; wherein, the third end It communicates with the capillary 3, and the fourth end communicates with the evaporator 5. That is, the outlet pipeline 62 and the outlet pipeline 67 extend on the same side of the central line axis C, and the length of the outlet pipeline 67 of the muffler 6' inserted into the fourth chamber 614 is small, that is, the size of the muffler 6' can be made The smaller, making the size of the machine smaller.

The present invention also provides a refrigerator, which includes the above-mentioned refrigeration system 10 .

To sum up, in the refrigeration system and refrigerator provided by the present invention, a muffler is arranged between the evaporator and the capillary in the refrigeration system, and a porous structure is arranged on the outlet pipe of the muffler to eliminate bubbles in the refrigerant and reduce the sound of erupting gas. In addition, the sound-absorbing cavity is divided into multiple chambers so that the refrigerant circulates in a cross-flow manner, reducing the sound energy and achieving the purpose of noise reduction.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Claims (8)

1. a refrigeration system, comprising capillary and evaporator, is characterized in that, described refrigeration system also comprises: A muffler, the muffler is arranged between the capillary and the evaporator, the muffler includes a shell, an inlet pipeline and an outlet pipeline, the inlet pipeline and the outlet pipeline are respectively connected to the The sound-absorbing chambers inside the shell are connected to each other; A first partition, the first partition divides the sound-absorbing chamber into a first chamber and a second chamber that are adjacent up and down and communicate with each other, and the first chamber is located at the upper part of the sound-absorbing chamber, so The second chamber is located at the lower part of the sound-absorbing chamber; and The second partition, the second partition divides the second chamber into a third chamber and a fourth chamber that are adjacent to each other on the left and right and communicate with each other, the third chamber is located on the right side of the sound-absorbing chamber The lower part, the fourth chamber is located at the lower left part of the muffler chamber; Wherein, the first end of the inlet pipeline is inserted into the first chamber, the second end of the outlet pipeline is inserted into one of the third chamber and the fourth chamber, and the the first end is located on the same side of the central axis of the housing as the second end; A through hole is provided on the first partition, and the through hole is provided away from the first end of the inlet pipeline and the second end of the outlet pipeline, so that the refrigerant flows in the first chamber and flow in the second chamber is staggered; 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 is connected to the outlet pipeline. The fourth ends are respectively located on the same side of the central axis of the housing; wherein, the third end communicates with the capillary, and the fourth end communicates with the evaporator. 2. The refrigeration system according to claim 1, further comprising a porous structure disposed at the first end, the porous structure having a cavity and an outer wall surrounding the cavity, A plurality of first through holes are provided on the outer wall; wherein the plurality of first through holes make the inlet pipeline, the cavity and the first chamber communicate with each other. 3. The refrigeration system according to claim 2, wherein the 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 the distribution density of the plurality of first through holes on the outer wall is greater than 10%. 5. The refrigerating system according to claim 2, wherein a plurality of second through holes are arranged on the second partition, and the plurality of second through holes make the third chamber and the fourth chamber The rooms are interconnected. 6. The refrigeration system according to claim 5, wherein the plurality of second through holes are evenly distributed on the second partition, and the plurality of second through holes are arranged on the second partition The distribution density on the board is greater than 10%. 7. The refrigeration system according to claim 5, wherein the diameter of each first through hole and each second through hole is less than or equal to 0.5 mm. 8. A refrigerator comprising a refrigeration system, characterized in that the refrigeration system is the refrigeration system according to any one of claims 1-7.

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