CN212987707U - Refrigerant noise reduction device and equipment with refrigeration function - Google Patents

Abstract

The utility model discloses a device of making an uproar and equipment that has refrigeration function fall in refrigerant, the device of making an uproar falls in refrigerant includes: the vibration reduction tube is connected in series with the capillary tube; wherein, the damping pipe is a hose. The utility model discloses a device of making an uproar falls in refrigerant through the damping tube that concatenates on the capillary, and this damping tube is the hose, because hose itself has the damping effect, then has effectively reduced the vibration of capillary to reduce the flow noise of refrigerant, reduced the refrigerant noise promptly.

Description

Refrigerant noise reduction device and equipment with refrigeration function

Technical Field

The utility model relates to a technical field of making an uproar falls in the refrigeration, more specifically says, relates to a device and the equipment that has the refrigeration function of making an uproar falls in refrigerant.

Background

For equipment with a refrigeration function, the noise mainly comprises compressor noise, pipeline vibration noise, fan noise and refrigerant noise. With the continuous progress of the technology, the noise of the compressor and the noise of the fan are continuously reduced, the vibration noise of the pipeline can be predicted and solved, and the noise of the refrigerant is increasingly prominent.

Refrigerant is continuously circulated in the system, and the pressure, the temperature and the state are continuously changed to generate refrigerant noise, wherein the refrigerant noise is mainly reflected in injection noise caused by sudden change of the state of the refrigerant entering an evaporator after the refrigerant is throttled by a capillary tube. At the interfaces of the condenser and the capillary tube and the interfaces of the capillary tube and the evaporator, flow noise occurs due to the abrupt change of flow field characteristics, and secondary radiation sound is formed by the flow noise through the tube wall. Moreover, the refrigerant in the pipeline has pulsation, and the vibration of the pipe wall can be caused by gas-solid coupling and liquid-solid coupling, and then is transmitted to the refrigerator foaming layer and the shell along the pipe wall, and the refrigerator foaming layer and the shell are good sound radiation materials, so that the sound is amplified, and the noise of the refrigerant is larger.

In view of the above, how to reduce the noise of the refrigerant is an urgent problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device of making an uproar falls in refrigerant to reduce the refrigerant noise. Another object of the utility model is to provide an equipment with refrigeration function, this equipment have above-mentioned refrigerant noise reduction device.

In order to achieve the above object, the present invention provides the following technical solutions:

a refrigerant noise reduction device comprising: the vibration reduction device comprises a capillary tube and a vibration reduction tube connected in series to the capillary tube; wherein the damping tube is a hose; the vibration reduction tube and the capillary tube are fixedly connected through a connecting component.

Preferably, the capillary tube comprises a first capillary section and a second capillary section, and the damper tube is connected in series between the first capillary section and the second capillary section.

Preferably, the damping tube is located outside the foam layer.

Preferably, the refrigerant noise reduction device further comprises a transition tube communicating with the outlet of the capillary tube, the transition tube having an inner diameter greater than the inner diameter of the capillary tube.

Preferably, the transition pipe is a hose.

Preferably, the refrigerant noise reduction device further comprises a porous noise reduction feature disposed within the damper tube and/or the transition tube;

the number of the porous noise reduction parts is at least two, and the porous noise reduction parts are sequentially arranged along the length direction of a pipe where the porous noise reduction parts are located; and a gap is formed between two adjacent porous noise reduction parts.

Preferably, the damping tube is connected in series at an outlet end of the capillary tube.

Preferably, the inner diameter of the damper tube is larger than the inner diameter of the capillary tube.

Preferably, the entire capillary tube is located outside the foam layer.

Preferably, the connection assembly comprises: the damping tube comprises a first connecting piece and a second connecting piece, wherein one end of the first connecting piece is fixedly connected with the capillary tube, the other end of the first connecting piece is fixedly connected with one end of the second connecting piece, and the other end of the second connecting piece is fixedly connected with the damping tube.

Preferably, the first connecting piece and the second connecting piece are fixedly connected through thread fit, the first connecting piece and the capillary tube are fixedly connected through interference fit, and the second connecting piece and the damping tube are fixedly connected through interference fit.

Preferably, the first connecting piece is provided with a step hole, and a large hole of the step hole is in interference fit with the capillary tube;

the second connecting piece is sleeved on the first connecting piece, and the second connecting piece is sleeved on the vibration damping pipe and is in interference fit with the vibration damping pipe;

one end of the first connecting piece is inserted into the vibration damping pipe and is in interference fit with the vibration damping pipe.

Preferably, a portion of the first connector inserted into the damper tube is tapered in an insertion direction thereof.

Based on the device of making an uproar falls in the refrigerant that above-mentioned provided, the utility model also provides an equipment with refrigeration function, this equipment with refrigeration function includes above-mentioned arbitrary any the device of making an uproar falls in the refrigerant.

The utility model provides a device of making an uproar falls in refrigerant through the damping tube that concatenates on the capillary, and this damping tube is the hose, because hose itself has the damping effect, then has effectively reduced the vibration of capillary to reduce the flow noise of refrigerant, reduced the refrigerant noise promptly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a refrigerant noise reduction device according to an embodiment of the present invention;

FIG. 2 is a front view of the refrigerant noise reducer of FIG. 1;

FIG. 3 is a side view of the refrigerant noise reducer of FIG. 1;

fig. 4 is another schematic structural diagram of a refrigerant noise reduction device according to an embodiment of the present invention;

fig. 5 is another schematic structural diagram of a refrigerant noise reduction device according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating a connection between a capillary tube and a damping tube in the refrigerant noise reduction device according to an embodiment of the present invention;

FIG. 7 is a side view of FIG. 6;

fig. 8 is a sectional view taken along line a-a of fig. 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a device of making an uproar falls in refrigerant includes: the vibration damper comprises a capillary tube 1 and a vibration damping tube 2 connected in series to the capillary tube 1; wherein the damping tube 2 is a hose.

The length of the hose is set according to actual needs. It will be appreciated that the longer the hose, the better the damping effect. Therefore, it is preferable that the length of the hose is not less than 200 mm. However, the length of the hose is 200mm in consideration of space limitation. Of course, the length of the hose may be selected to be other values, which is not limited in this embodiment.

The type of hose is chosen according to the actual requirements, for example, the hose is a stainless steel hose, a metal hose, a corrugated hose, a rubber hose, or a plastic hose. In order to improve the noise reduction effect, the hose is preferably a rubber hose or a plastic hose.

The embodiment of the utility model provides a device of making an uproar falls in refrigerant through concatenating damping tube 2 on capillary 1, and this damping tube 2 is the hose, because hose itself has the damping effect, then has effectively reduced capillary 1's vibration to reduce the flow noise of refrigerant, reduced the refrigerant noise promptly.

The damper tube 2 may be connected in series to the middle or outlet end of the capillary tube 1. Specifically, as shown in fig. 1 to 4, the capillary tube 1 includes a first capillary segment 11 and a second capillary segment 12, and the damper tube 2 is connected in series between the first capillary segment 11 and the second capillary segment 12. It is understood that the first capillary section 11 and the second capillary section 12 communicate through the damper tube 2.

In order to further reduce noise, the damping tube 2 is located outside the foam layer. Thus, the vibration of the outlet of the capillary tube 1 caused by the unstable flow of the refrigerant is effectively attenuated and transmitted to the upstream of the capillary tube 1, and the vibration of the capillary tube 1 in the foaming layer is attenuated to the maximum extent, so that the formation of secondary radiation sound in the foaming layer is prevented, and the noise reduction is further realized.

Preferably, the refrigerant noise reduction device further comprises a transition pipe 4 communicated with the outlet of the capillary tube 1, and the inner diameter of the transition pipe 4 is larger than that of the capillary tube 1. At this time, the capillary tube 1 is communicated with the evaporator 5 through the transition tube 4, and the inner diameter of the transition tube 4 is smaller than the inlet inner diameter of the evaporator 5.

The pipe diameter and the length of the transition pipe 4 are selected according to actual needs, and this embodiment does not limit this.

Further, the transition pipe 4 is a hose. Therefore, the noise can be further reduced, and the noise reduction effect is improved.

In the above-described refrigerant noise reduction device, the noise reduction effect may be improved by another method. Specifically, as shown in fig. 4 and 5, the refrigerant noise reduction device further includes a porous noise reduction member 6, and the porous noise reduction member 6 is disposed inside the damper pipe 2 and/or the transition pipe 4.

If the porous noise reduction part 6 is arranged in the vibration damping tube 2, the porous noise reduction part 6 is preferentially selected to be arranged at one end of the vibration damping tube 2 close to the capillary tube 1; if the porous noise reduction features 6 are disposed within the transition tube 4, it is preferred that the porous noise reduction features 6 be located at an end of the transition tube 4 proximate to the capillary tube 1.

In the refrigerant noise reduction device, the bubbles are scattered by the porous noise reduction part 6, so that the generation of large bubbles is prevented, the bubble collapse sound is effectively improved, the eruption speed of the refrigerant can be effectively reduced, the eruption noise is reduced, and the noise reduction effect is improved.

One or more porous noise reduction members 6 may be provided. In order to improve the noise reduction effect, at least two porous noise reduction components 6 are preferably selected and sequentially arranged along the length direction of the tube where the porous noise reduction components 6 are located.

Two adjacent porous noise reduction members 6 may be disposed in close proximity, or a gap may be reserved. In order to improve the flow stabilizing effect of the refrigerant in the core emitting area, a gap is formed between two adjacent porous noise reduction parts 6. The specific size of the gap is set according to actual needs, for example, two adjacent porous noise reduction members 6 are arranged at an interval of 3mm, which is not limited in this embodiment.

The porous noise reduction component 6 may be a stainless steel wire mesh, an orifice plate, or a cylinder with holes, which is not limited in this embodiment.

As shown in fig. 5, the damper tube 2 may also be connected in series at the outlet end of the capillary tube 1.

In the above-described refrigerant noise reduction device, the inner diameter of the damper tube 2 is larger than the inner diameter of the capillary tube 1. Therefore, the pipe diameter is suddenly changed, the joint of the capillary tube 1 and the damping tube 2 has pressure drop, and the function of releasing pressure in advance can be achieved. When the vibration damping tube 2 is connected in series between the first capillary section 11 and the second capillary section 12, but due to the existence of the second capillary section 12 at the downstream of the vibration damping tube 2, the pressure drop is ensured to be small, the pressure drop at the outlet of the capillary tube 1 can be reduced, the refrigerant burst speed can be effectively reduced, and therefore the burst noise and the tail oscillation of the capillary tube 1 are reduced.

In order to prevent the formation of secondary radiated sound in the foamed layer, the entire capillary 1 is preferably located outside the foamed layer. Specifically, when the capillary tube 1 is communicated with the evaporator 5 through the transition tube 4, the transition tube 4 is positioned in the foaming layer; when the capillary tube 1 communicates with the evaporator 5 through the damper tube 2, the damper tube 2 is located in the foam layer.

The capillary tube 1 is a copper tube, and the damper tube 2 is a hose, so that the capillary tube 1 and the damper tube 2 are made of different materials. For the convenience of connection, the damper tube 2 and the capillary tube 1 are fixedly connected through a connection assembly. It will be appreciated that the connection assembly communicates between the damper tube 2 and the capillary tube 1.

Specifically, as shown in fig. 6 to 8, the above-mentioned connecting assembly includes: the damping tube comprises a first connecting piece 8 and a second connecting piece 9, wherein one end of the first connecting piece 8 is fixedly connected with the capillary tube 1, the other end of the first connecting piece 8 is fixedly connected with one end of the second connecting piece 9, and the other end of the second connecting piece 9 is fixedly connected with the damping tube 2.

When the damper tube 2 is connected in series between the first capillary segment 11 and the second capillary segment 12, the capillary tube 1 may be the first capillary segment 11 or the second capillary segment 12.

Preferably, the first connecting piece 8 and the second connecting piece 9 are fixedly connected through thread fit, the first connecting piece 8 and the capillary tube 1 are fixedly connected through interference fit, and the second connecting piece 9 and the damping tube 2 are fixedly connected through interference fit.

In the above-mentioned connection assembly, the first connection member 8 and the second connection member 9, the first connection member 8 and the capillary tube 1, and the second connection member 9 and the damping tube 2 may also be fixed and connected by other methods, which is not limited to the above-mentioned embodiment.

Further, the first connecting member 8 has a stepped hole, and a large hole of the stepped hole is in interference fit with the capillary tube 1. Therefore, the installation of the capillary tube 1 is realized through the stepped hole, the axial limiting of the capillary tube 1 is also realized, the insertion depth of the capillary tube 1 can be strictly limited, and the control of the vibration of the tail end of the capillary tube 1 is realized through the strict matching of the inner diameter of the large hole of the stepped hole and the outer diameter of the capillary tube 1.

Since the outer diameter of the damping tube 2 is larger than that of the capillary tube 1, the second connecting member 9 is preferably sleeved on the first connecting member 8, and the second connecting member 9 is sleeved on the damping tube 2 and is in interference fit with the damping tube 2.

Because damping pipe 2 is the hose, when screwing up first connecting piece 8 and second connecting piece 9 of screw-thread fit, damping pipe 2 is easy to be out of shape, for reducing damping pipe 2's deformation, the one end of above-mentioned first connecting piece 8 inserts in damping pipe 2 and with damping pipe 2 interference fit. In this way, the portion of the first connecting member 8 inserted into the damper tube 2 achieves support of the damper tube 2, so that deformation of the damper tube 2 is reduced, and even deformation of the damper tube 2 can be avoided.

In order to facilitate the connection of the damper tube 2 and the first connector 8, the portion of the first connector 8 inserted into the damper tube 2 is tapered in the insertion direction thereof.

Specifically, the first connecting piece 8 includes a capillary connecting section 81, a first main connecting section 82 and a first vibration damping connecting section 83 which are connected in sequence, and the second connecting piece 9 includes a second main connecting section 91 and a second vibration damping connecting section 92 which are connected in sequence, wherein the capillary connecting section 81 is sleeved on the capillary tube 1, the stepped hole is arranged in the capillary connecting section 81, and a large hole of the stepped hole is in interference fit with the capillary tube 1; the first main connecting section 82 is fixedly connected with the second main connecting section 91, specifically, the second main connecting section 91 is sleeved outside the first main connecting section 82, and the second main connecting section 91 is in threaded fit with the first main connecting section 82; the damping pipe 2 is sleeved on the first damping connecting section 83, the damping pipe 2 is in interference fit with the first damping connecting section 83, and further, the first damping connecting section 83 is gradually reduced from one end close to the first main connecting section 82 to one end far away from the first main connecting section 82; the second vibration damping connecting section 92 is sleeved on the vibration damping pipe 2, and the second vibration damping connecting section 92 is in interference fit with the vibration damping pipe 2.

Of course, one end of the first connecting member 8 may be inserted into the damper tube 2 and transition-fitted into the damper tube 2, and is not limited to the above-described embodiment.

In the above-mentioned refrigerant noise reduction device, the first connector 8 may be optionally sleeved on the upper second connector 9, and the present invention is not limited to the above-mentioned embodiment.

In the above-described connection assembly, the connection of the respective components is sealed to prevent leakage of the refrigerant.

To more particularly embody the present solution, the following examples are provided.

Implement one

As shown in fig. 1 to 3, the capillary tube 1 includes a first capillary segment 11 and a second capillary segment 12, the damper tube 2 is connected in series between the first capillary segment 11 and the second capillary segment 12, and the second capillary segment 12 is communicated with the evaporator 5 through the transition tube 4. The damper pipe 2 is located outside the foaming layer, and the upstream pipe section of the joint of the second capillary pipe section 12 and the transition pipe 4 is located outside the foaming layer. In this case, the capillary 1 is entirely located outside the foam layer.

In the first embodiment, the vibration damping tube 2 is a hose, and the hose has a damping effect and can effectively damp vibration; the upstream pipe section of the joint of the second capillary pipe section 12 and the transition pipe 4 is positioned outside the foaming layer, so that the vibration damping pipe 2 can effectively damp the transmission of the vibration at the outlet of the capillary pipe 1 to the upstream of the capillary pipe 1 caused by the unstable flow of the refrigerant, damp the vibration of the capillary pipe 1 in the foaming layer to the maximum extent, and prevent the formation of secondary radiation sound in the foaming layer. In addition, because the inner diameter of the damping tube 2 is larger than that of the capillary tube 1 and has sudden change of the tube diameter, pressure drop can occur at the joint of the first capillary tube section 11 and the damping tube 2, but because the second capillary tube section 12 is arranged at the downstream of the damping tube 2, the effect of pressure release in advance is achieved, the pressure drop at the joint of the second capillary tube section 12 and the transition tube 4 is reduced, the refrigerant burst speed can be effectively reduced, and the burst noise and the oscillation at the outlet of the capillary tube 1 are reduced.

Specifically, the outer diameter of the first capillary segment 11 is 1.9mm, the inner diameter of the first capillary segment 11 is 0.61-0.71mm, and the refrigerant flow in the first capillary segment 11 is 5.0-8.0L/min; the outer diameter of the vibration damping pipe 2 is 4mm, the inner diameter of the vibration damping pipe 2 is 2mm, and the length of the vibration damping pipe 2 is not less than 200 mm; the length of the second capillary segment 12 is not less than 800 mm; the outer diameter of the transition pipe 4 is 4mm, and the inner diameter of the transition pipe 4 is 2 mm. The outer diameter of the inlet pipe of the evaporator 5 is 8mm, and the inner diameter of the inlet pipe of the evaporator 5 is 6 mm.

Of course, the above parameters may be selected to be other values or value ranges, and are not limited to the first embodiment.

Carry out two

As shown in fig. 4, in the first embodiment, a porous noise reduction member 6 is provided in the transition pipe 4. The number of the porous noise reduction members 6 is three, and a gap is provided between two adjacent porous noise reduction members 6.

Implementation III

As shown in fig. 5, the damper tube 2 is connected in series at the outlet end of the capillary tube 1, i.e., the capillary tube 1 is communicated with the evaporator 5 through the damper tube 2. Porous noise reduction parts 6 are arranged in the vibration reduction pipe 2, the number of the porous noise reduction parts 6 is three, and a gap is formed between every two adjacent porous noise reduction parts 6.

In the third embodiment, a combination mode of the vibration reduction tube 2 and the porous noise reduction part 6 is adopted, so that on one hand, the vibration reduction tube 2 can attenuate vibration by using the high damping characteristic of the material to prevent the vibration from being transmitted to the evaporator 5; on the other hand, the porous noise reduction part 6 is utilized to scatter bubbles, so that the generation of large bubbles is prevented, the bubble collapse sound is effectively improved, and the flow stabilization effect in the core emitting area range of the refrigerant is ensured; moreover, a gap is formed between two adjacent porous noise reduction parts 6, so that the refrigerant burst speed can be effectively reduced, and the burst noise can be reduced.

Specifically, the outer diameter of the capillary tube 1 is 1.9mm, the inner diameter of the capillary tube 1 is 0.61-0.71mm, and the flow rate of the refrigerant in the capillary tube 1 is 5.0L/min-8.0L/min; the outer diameter of the vibration damping tube 2 is 6mm, the inner diameter of the vibration damping tube 2 is 4mm, and the length of the vibration damping tube 2 is 200 mm; the porous noise reduction part 6 is a stainless steel wire mesh with the mesh number of 70, the wire diameter of the stainless steel wire mesh is 0.14mm, and the stainless steel wire mesh is of a 10-layer structure; the outer diameter of the inlet of the evaporator 5 is 8mm, and the inner diameter of the inlet of the evaporator 5 is 6 mm.

The above parameters are other values or value ranges, and are not limited to the third embodiment.

In the practical application process, also can be according to the utility model provides a more embodiments of concrete scheme combination, this text is no longer repeated one by one.

Based on the refrigerant noise reduction device provided in the foregoing embodiment, this embodiment further provides an apparatus having a refrigeration function, where the apparatus includes the refrigerant noise reduction device described in the foregoing embodiment.

Because the above-mentioned refrigerant noise reduction device has above-mentioned technological effect, above-mentioned equipment with refrigeration function includes above-mentioned refrigerant noise reduction device, then above-mentioned equipment with refrigeration function also has corresponding technological effect, and this text is no longer repeated.

The above-mentioned equipment with refrigeration function can also be a refrigerator or an air conditioner, etc., and the specific type of the equipment with refrigeration function is not limited in this embodiment, and is selected according to actual needs.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (14)

1. A refrigerant noise reducing device, comprising: the vibration damper comprises a capillary tube (1) and a vibration damping tube (2) connected in series to the capillary tube (1); wherein the vibration damping tube (2) is a hose; the vibration reduction tube (2) and the capillary tube (1) are fixedly connected through a connecting component.

2. Refrigerant noise reduction device according to claim 1, characterized in that the capillary tube (1) comprises a first capillary section (11) and a second capillary section (12), the vibration damping tube (2) being connected in series between the first capillary section (11) and the second capillary section (12).

3. Refrigerant noise reduction device according to claim 2, characterized in that the damping tube (2) is located outside the foam layer.

4. The refrigerant noise reduction device according to claim 2, further comprising a transition tube (4) communicating with the outlet of the capillary tube (1), the transition tube (4) having an inner diameter larger than the inner diameter of the capillary tube (1).

5. Refrigerant noise reduction device according to claim 4, characterized in that the transition pipe (4) is a hose.

6. The refrigerant noise reduction device according to claim 4, further comprising a porous noise reduction member (6), the porous noise reduction member (6) being disposed within the damper tube (2) and/or the transition tube (4);

the number of the porous noise reduction parts (6) is at least two, and the porous noise reduction parts are sequentially arranged along the length direction of a pipe where the porous noise reduction parts (6) are located; and a gap is reserved between every two adjacent porous noise reduction parts (6).

7. Refrigerant noise reduction device according to claim 1, characterized in that the damper tube (2) is connected in series at the outlet end of the capillary tube (1).

8. Refrigerant noise reduction device according to claim 1, characterized in that the inner diameter of the damper tube (2) is larger than the inner diameter of the capillary tube (1).

9. Refrigerant noise reduction device according to claim 1, characterized in that the whole capillary tube (1) is located outside the foam layer.

10. The refrigerant noise reduction device according to any one of claims 1 to 9, wherein the connection assembly includes: the vibration damper comprises a first connecting piece (8) and a second connecting piece (9), wherein one end of the first connecting piece (8) is fixedly connected with the capillary tube (1), the other end of the first connecting piece (8) is fixedly connected with one end of the second connecting piece (9), and the other end of the second connecting piece (9) is fixedly connected with the vibration damping tube (2).

11. The refrigerant noise reduction device according to claim 10, wherein the first connector (8) and the second connector (9) are fixedly connected through a threaded fit, the first connector (8) and the capillary tube (1) are fixedly connected through an interference fit, and the second connector (9) and the damper tube (2) are fixedly connected through an interference fit.

12. The refrigerant noise reduction device of claim 11,

the first connecting piece (8) is provided with a step hole, and a large hole of the step hole is in interference fit with the capillary tube (1);

the second connecting piece (9) is sleeved on the first connecting piece (8), and the second connecting piece (9) is sleeved on the vibration damping pipe (2) and is in interference fit with the vibration damping pipe (2);

one end of the first connecting piece (8) is inserted into the vibration reduction pipe (2) and is in interference fit with the vibration reduction pipe (2).

13. Refrigerant noise reduction device according to claim 12, characterized in that the portion of the first connector (8) inserted into the damper tube (2) is tapered in its insertion direction.

14. An apparatus having a cooling function, characterized by comprising the refrigerant noise reducing device according to any one of claims 1 to 13.

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