CN213631082U

CN213631082U - Liquid storage device, compressor and refrigeration equipment

Info

Publication number: CN213631082U
Application number: CN202022581182.XU
Authority: CN
Inventors: 能海强; 王宏; 王文华
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-06
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a liquid storage device, which comprises a cylinder body and a silencing mechanism; the cylinder body is provided with an inner cavity; the cylinder body is provided with an air inlet interface communicated with the inner cavity; the silencing mechanism is arranged in the inner cavity and connected with the cavity wall of the inner cavity; a silencing cavity which is sunken along the axis direction of the cylinder is formed on the silencing mechanism, and the area of the cross section of the silencing cavity is gradually reduced along the direction far away from the air inlet interface; the silencing mechanism is also provided with a through hole communicated with the silencing cavity. The utility model discloses a cavity mode makes the sound transmission loss in 400-plus-one 1200Hz within range not have obvious valley bottom about the amortization mechanism restraines the reservoir to effectively reduce interior machine transmission sound, reduce whole noise.

Description

Liquid storage device, compressor and refrigeration equipment

Technical Field

The utility model belongs to the technical field of the technique of refrigeration plant and specifically relates to a reservoir, compressor and refrigeration plant are related to.

Background

The compressor is the heart of a refrigerating system, and the important link of the compressor is required to ensure no matter in air-conditioning, refrigeration houses and chemical refrigerating processes. The existing compressor mainly comprises a compressor main body and an accumulator.

Fig. 1 shows a schematic structure of a reservoir in the prior art, and the reservoir includes a cylinder 13 and a filter assembly 30 as shown in fig. 1. The cartridge 13 is generally cylindrical in configuration, the cartridge 13 having an interior chamber 10, the filter assembly 30 being disposed within the interior chamber 10 and dividing the interior chamber 10 into a first interior chamber 14 and a second interior chamber 15. The cylinder body 13 is further provided with an air inlet port 11 communicated with the first inner cavity and an air outlet port 12 communicated with the second inner cavity 15. The air inlet port 11 is communicated with the compressor body through an air inlet pipeline 40 to suck a refrigerant in the refrigeration equipment into the liquid storage device for gas-liquid separation, and the air outlet port 12 is communicated with the compressor body through an air outlet pipeline 50 to reintroduce the separated gaseous refrigerant into the compressor body. The compressor starts or the stable stage at refrigeration operating mode, arouses to transmit to the interior machine and arouse refrigeration transmission sound because of system load pressure leads to pipeline and reservoir cavity mode, leads to that the subjective ear of user experiences not good, can cause customer complaint even when serious.

In view of the above problems, there is proposed an improved liquid accumulator, which is configured as shown in fig. 2, and two flat sound-absorbing partitions 20 are disposed in the second inner cavity 15 of the cylinder 13 to eliminate the transmission sound inside the refrigerator. Fig. 3 shows a frequency-sound loss curve of the sound transmitted in the improved reservoir, which is obtained by simulation experiments performed by the dynamics simulation software LMS virtual. lab, and it is seen from the curve that although the flat silencing partition eliminates part of the sound transmitted in the reservoir, the frequency is obviously low in the range of 400Hz-1200Hz, so that the sound transmitted in the frequency range is not good in silencing effect. In addition, baffle holes 21 for the air outlet pipe 50 to penetrate through need to be formed in the silencing baffle plate 20, the aperture of the baffle holes 21 needs to be reduced in order to enhance the silencing effect, meanwhile, the baffle plate 20 reduces the aperture, the position of the baffle plate is close to the first inner cavity 14 and far away from the air outlet interface 12 of the liquid storage device, and meanwhile, the air outlet pipe 50 enters the barrel body 13 from the air outlet interface 12 for installation, so that the installation difficulty of the air outlet pipe 50 can be increased by the baffle holes 21 with the reduced aperture in the production and manufacturing process, the serious interference problem of the inner pipe is easily caused, the product yield is reduced, and the production and manufacturing process is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reservoir, compressor and refrigeration plant, the reservoir can restrain cavity mode about the reservoir in the course of the work, reduces interior machine transmission sound, promotes user's use and experiences and feel.

In order to achieve the purpose, the utility model provides a liquid storage device, which comprises a cylinder body and a silencing mechanism; the cylinder body is provided with an inner cavity; the cylinder body is provided with an air inlet interface communicated with the inner cavity; the silencing mechanism is arranged in the inner cavity and is connected with the cavity wall of the inner cavity; the silencing mechanism is provided with a silencing cavity which is sunken along the axis direction of the cylinder body, and the area of the cross section of the silencing cavity is gradually reduced along the direction far away from the air inlet interface.

Optionally, the silencing mechanism comprises a main body part, the main body part is provided with a first surface and a second surface which are oppositely arranged, and the first surface is closer to the air inlet interface; the first surface is concave towards the direction far away from the air inlet interface so as to form the silencing cavity, and the second surface is convex towards the direction far away from the air inlet interface.

Optionally, the body portion is hemispherical.

Optionally, the body portion is frustum-shaped.

Optionally, the main body portion is formed with an annular step structure extending along a circumferential direction of the main body portion.

Optionally, the number of the step structures is one or more; a plurality of the step structures are arranged at intervals along the axial direction of the main body part.

Optionally, the silencing mechanism further includes an annular connecting portion, the connecting portion is disposed on the main body portion, and a surface of the connecting portion close to the air inlet interface is flush with an end portion of one end of the main body portion close to the air inlet interface.

Optionally, the filter device further comprises a filter assembly, wherein the filter assembly is arranged in the inner cavity of the cylinder body and divides the inner cavity into a first inner cavity and a second inner cavity; the air inlet interface is communicated with the first inner cavity; the silencing mechanism is arranged in the second inner cavity, a through hole is formed in the bottom of the silencing mechanism, an air outlet port communicated with the second inner cavity is further formed in the barrel, and the air outlet port is arranged on one side, away from the first inner cavity, of the silencing mechanism.

In order to achieve the above object, the present invention further provides a compressor, comprising the above liquid storage device, wherein the liquid storage device is further provided with an air outlet interface communicated with the inner cavity; the compressor main body comprises a refrigerant suction part and a refrigerant discharge part, the refrigerant suction part is connected with the air outlet interface through an exhaust pipe, and the refrigerant discharge part is connected with the air inlet interface through an air inlet pipe.

In order to achieve the above object, the present invention further provides a refrigeration device including the compressor as described above.

Compared with the prior art, the utility model discloses a reservoir, compressor and refrigeration plant have following advantage:

the first liquid storage device comprises a barrel and a silencing mechanism, wherein the barrel is provided with an inner cavity, and the barrel is provided with an air inlet interface communicated with the inner cavity; the silencing mechanism is arranged in the inner cavity and connected with the cavity wall of the inner cavity; and a silencing cavity which is sunken along the axis direction of the cylinder is formed on the silencing mechanism. When the transmission sound in the machine is transmitted to the sound attenuation cavity of the sound attenuation mechanism, the cavity wall of the sound attenuation cavity reflects the refrigeration transmission sound to all directions to form reflection waves which can be mutually reduced, so that the purpose of eliminating the transmission sound in the machine within the range of 400Hz-1200Hz is achieved.

Secondly, the silencing mechanism comprises a main body part, the main body part is provided with a first surface and a second surface which are oppositely arranged, and the first surface is closer to the air inlet interface; the first surface is concave towards the direction far away from the air inlet interface so as to form the silencing cavity, and the second surface is convex towards the direction far away from the air inlet interface. The silencing mechanism with the structure can be directly formed by stamping a thinner plate, and has the advantages of simple manufacture, mature process, high product yield and less material consumption.

And thirdly, the bottom of the silencing mechanism is provided with a through hole which is closer to the air outlet interface than the through hole of the partition plate in the prior art, and the silencing mechanism is provided with a silencing cavity so that the aperture of the through hole is not required to be reduced, and the installation difficulty of the air outlet pipe is reduced while the interference of an internal pipeline is reduced.

Drawings

The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:

FIG. 1 is a schematic diagram of a reservoir configuration of the prior art;

FIG. 2 is a schematic view of another reservoir configuration of the prior art;

FIG. 3 is a graph of frequency-acoustic transmission loss experiments for the reservoir shown in FIG. 2;

fig. 4 is a schematic structural view of a reservoir according to an embodiment of the present invention;

FIG. 5 is a graph of frequency-acoustic transmission loss experiments for the reservoir shown in FIG. 4;

fig. 6 is a schematic structural view of a reservoir provided in accordance with another embodiment of the present invention;

fig. 7 is a schematic structural view of a reservoir according to yet another embodiment of the present invention;

FIG. 8 is a graph of frequency-acoustic transmission loss experiments for the reservoir shown in FIG. 7;

wherein the reference numerals of figures 1-7 are as follows:

10. 110-inner cavity, 11, 101-air inlet interface, 12, 102-air outlet interface, 13, 100-cylinder, 14, 111-first inner cavity, 15, 112-second inner cavity, 20-flat plate type partition board, 200-silencing mechanism, 210-silencing cavity, 220-main body part, 221-first surface, 222-second surface, 223-step structure, 230-connecting part, 21, 240-through hole, 30, 300-filtering component, 40, 400-air inlet pipe, and 50, 500-air outlet pipe.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, like reference numerals designate corresponding elements. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The drawings are in simplified form and are not to scale, but rather are provided for convenience and clarity in describing the embodiments of the invention.

Fig. 4 shows a schematic structural diagram of a liquid storage device according to an embodiment of the present invention. Referring to fig. 4, the liquid reservoir includes a cylinder 100 and a silencing mechanism 200. The cylinder 100 is provided with an inner cavity 110, and the cylinder 100 is further provided with an air inlet 101 communicated with the inner cavity 110. The silencing mechanism 200 is disposed in the inner cavity 110 and connected to a wall of the inner cavity 110, and a silencing cavity 210 recessed along an axial direction of the cylinder 100 is formed on the silencing mechanism 200, specifically, the silencing cavity 210 is recessed along a direction away from the air inlet 101, and an area of a cross section of the silencing cavity 210 is tapered along a direction away from the air inlet 101. That is, in this embodiment, the concave surface of the sound-deadening chamber 210 is disposed toward the air inlet 101, and the internal transmission sound transmitted to the sound-deadening chamber 210 is reflected by the concave surface of the sound-deadening chamber 210, so as to generate reflected waves that can be mutually attenuated in each direction, thereby achieving the purpose of reducing the internal transmission sound and even completely eliminating the internal transmission sound. As will be appreciated by those skilled in the art, the reservoir is generally an elongated cylindrical structure and the air inlet port 101 is generally disposed at one axial end of the reservoir, and thus, the "cross-section" refers to a cross-section perpendicular to the axis of the reservoir.

Further, the silencing mechanism 200 may include a main body portion 220, wherein the main body portion 220 includes a first surface 221 and a second surface 222 opposite to each other, and the first surface 221 is closer to the air inlet 101. The first surface 221 is recessed away from the air intake port 101 to form the sound-deadening chamber 210 (i.e., the first surface 221 becomes a concave surface of the sound-deadening chamber 210), and the second surface 222 is raised away from the air intake port 101. Further, the sound attenuating mechanism 200 further includes a connecting portion 230 disposed around the main body portion 220, wherein the connecting portion 230 is used for connecting with the inner wall of the inner cavity 110 by welding or any other suitable method. In this embodiment, a surface of the connecting portion 230 near the air inlet 101 is preferably flush with an end of the main body portion near one end of the air inlet 101. Thus, the silencing mechanism 200 can be formed by punching a thin plate directly, and has the advantages of convenient manufacture, mature process, high reliability and raw material saving.

The specific shape of the sound-deadening chamber 210 is not particularly limited in this embodiment, and may be determined according to the shape of the punch. For example, in one embodiment, when the shape of the punch is hemispherical, the main body 220 is correspondingly hemispherical (as shown in fig. 4), while in another embodiment, the punch is frustum-shaped, and the main body 220 is also frustum-shaped (as shown in fig. 6).

Those skilled in the art will appreciate that the possible forms of the body portion 220 are described herein by way of example only and should not be construed as limiting the invention. In an alternative embodiment, the second surface 222 of the main body 220 may be a plane, but in this case, the overall thickness of the sound-deadening mechanism 200 is relatively large, which consumes a lot of raw materials, and is not favorable for reducing economic cost.

Referring to fig. 7, when the main body 220 of the silencing mechanism 200 is formed by stamping with a frustum-shaped stamping head, the main body 220 is preferably formed with an annular step structure 223 extending along the circumferential direction of the main body 220. This is because, on the one hand, the main body portion 220 having the step structure 223 may be formed by multiple stamping, which is beneficial to improving the product yield of the noise reduction mechanism 200, and on the other hand, the step structure 223 may also improve the strength of the noise reduction mechanism 200, thereby improving the service life. In this embodiment, the number of the step structures 223 is one or more, and when the number of the step structures 223 is plural, the plurality of step structures 223 are arranged at intervals along the axial direction of the main body part 220. The axial direction of the main body 220 is parallel to or coincides with the axial direction of the reservoir.

With continued reference to fig. 4, 6 and 7, the cartridge body 100 of the reservoir is generally an elongated cylindrical structure and is oriented vertically. The reservoir further comprises a filter assembly 300, wherein the filter assembly 300 is disposed in the inner cavity 110 of the cylinder 100 and divides the inner cavity 110 into a first inner cavity 111 and a second inner cavity 112, the first inner cavity 111 is closer to the air inlet interface, that is, the first inner cavity 111 is an upper space, and the second inner cavity 112 is a lower space (taking the orientation shown in fig. 4 as an example). The sound attenuating mechanism 200 is disposed in the second interior chamber 112. An air outlet interface 102 is further arranged on the cylinder 100, and the air outlet interface 102 is communicated with the second inner cavity and is located on one side of the silencing mechanism 200, which is far away from the first inner cavity 111. Generally, the air inlet 101 is disposed at the upper end of the cylinder 100, the air outlet 102 is disposed at the lower end of the cylinder 100, and both the air inlet 101 and the air outlet 102 are coaxially disposed with the cylinder 100. In this way, it is preferable that the sound-deadening chamber 210 of the sound-deadening mechanism 200 and the cylinder 100 are also arranged coaxially, and the smaller the difference between the maximum area of the cross section of the sound-deadening chamber 210 and the cross section of the cylinder 100, the better the sound-deadening effect. Those skilled in the art will appreciate that the outlet port 102 may also be disposed on a sidewall of the cartridge 100.

Further, the bottom of the silencing mechanism 200 is also provided with a through hole 240. The reservoir further comprises an inlet pipe 400 and an outlet pipe 500. The air inlet pipe 400 is connected with the air inlet connector 101 and communicated with the first inner cavity 111, the air outlet pipe 400 is connected with the air outlet connector 102, one end of the air outlet pipe 400 is arranged outside the cylinder 100, the other end of the air outlet pipe extends from the air outlet connector 102 to the second inner cavity 112, and further penetrates through the through hole 240 to extend into one side, close to the air inlet connector 101, of the silencing mechanism 200. In particular, when the outlet port 102 is disposed at a position opposite to the inlet port 101 (i.e., the outlet port 102 is disposed at the lower end of the cylinder), the through hole 240 is disposed at the bottom of the silencing mechanism 200, which can reduce the problem of mutual interference between the pipes in the reservoir. The "bottom of the silencing mechanism 200" refers to a position where the silencing chamber 210 is at the maximum distance from the air inlet 101.

Further, the embodiment of the utility model provides a still provide one kind and include the compressor of reservoir. The compressor further comprises a compressor main body (not shown), the compressor main body comprises a refrigerant suction portion and a refrigerant discharge portion, the refrigerant suction portion is communicated with the liquid storage device through the air outlet pipe, and the refrigerant discharge portion is communicated with the liquid storage device through the air inlet pipe. Thus, the accumulator is used for sucking the gas-liquid mixed refrigerant discharged from the compressor body and performing gas-liquid separation on the gas-liquid mixed refrigerant. And then, one part of the separated gaseous refrigerant is stored in the first inner cavity, the other part of the separated gaseous refrigerant is supplied to the compressor main body through the air outlet pipe, and the separated liquid refrigerant is stored in the second inner cavity. It should be understood that the liquid-gas separation process of the refrigerant in the liquid-gas mixture state by the accumulator is well known in the art, and will not be described in detail herein.

When the compressor works, the noise-eliminating mechanism in the liquid storage device is used for eliminating noise transmitted in the compressor. Lab, wherein fig. 5 shows a frequency-sound transmission loss experimental graph in a liquid reservoir when the main body part of the silencing mechanism is hemispherical, and fig. 8 shows a frequency-sound transmission loss experimental graph in a liquid reservoir when the main body part of the silencing mechanism is in a frustum-shaped structure and the main body part is provided with a step structure. As clearly shown in fig. 5 and 8, compared with the prior art, the refrigeration transmission sound in the frequency range of 400Hz to 1200Hz has no obvious valley, which indicates that the refrigeration transmission sound in the frequency range is well suppressed and the purpose of silencing is achieved.

Still further, the embodiment of the utility model provides a refrigeration plant is still provided, refrigeration plant includes aforementioned compressor.

In summary, the utility model provides a technical scheme has following advantage: the liquid storage device is internally provided with the silencing mechanism, and the silencing cavity which is recessed towards the direction far away from the air inlet interface is arranged on the silencing mechanism to change the propagation path of sound waves in the cavity so as to inhibit the upper and lower cavity modes of the liquid storage device, so that the sound transmission loss in the range of 400-plus-1200 Hz has no obvious valley bottom during working, and the transmission sound of the internal machine is effectively reduced. In addition, the convex shape of the main body part of the silencing mechanism enables the through hole to be offset towards the direction far away from the air inlet interface, and the problem of interference between the through hole on the silencing mechanism and the inner pipe in production and manufacturing is solved.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A liquid storage device is characterized by comprising a cylinder body and a silencing mechanism; the cylinder body is provided with an inner cavity; the cylinder body is provided with an air inlet interface communicated with the inner cavity; the silencing mechanism is arranged in the inner cavity and is connected with the cavity wall of the inner cavity; the silencing mechanism is provided with a silencing cavity which is sunken along the axis direction of the cylinder, and the area of the cross section of the silencing cavity is gradually reduced along the direction far away from the air inlet interface.

2. The reservoir of claim 1, wherein the dampening mechanism includes a body portion having first and second oppositely disposed surfaces, the first surface being closer to the air intake interface; the first surface is concave towards the direction far away from the air inlet interface so as to form the silencing cavity, and the second surface is convex towards the direction far away from the air inlet interface.

3. The reservoir of claim 2, wherein the body portion is hemispherical.

4. The reservoir of claim 2, wherein the body portion is frustoconical.

5. The reservoir of claim 4, wherein the body portion has an annular step structure formed thereon that extends circumferentially of the body portion.

6. The reservoir of claim 5, wherein the number of step structures is one or more; a plurality of the step structures are arranged at intervals along the axial direction of the main body part.

7. The reservoir of claim 2, wherein the noise dampening mechanism further comprises an annular connecting portion disposed on the main body portion, and wherein a surface of the connecting portion near the air inlet port is flush with an end of the main body portion near an end of the air inlet port.

8. The reservoir of claim 1, further comprising a filter assembly disposed in the interior chamber of the cartridge and dividing the interior chamber into a first interior chamber and a second interior chamber; the air inlet interface is communicated with the first inner cavity; the silencing mechanism is arranged in the second inner cavity, a through hole is formed in the bottom of the silencing mechanism, an air outlet port communicated with the second inner cavity is further formed in the barrel, and the air outlet port is arranged on one side, away from the first inner cavity, of the silencing mechanism.

9. A compressor, comprising the accumulator according to any one of claims 1 to 8 and a compressor body; the liquid storage device is also provided with an air outlet interface communicated with the inner cavity; the compressor main body comprises a refrigerant suction part and a refrigerant discharge part, the refrigerant suction part is connected with the air outlet interface through an exhaust pipe, and the refrigerant discharge part is connected with the air inlet interface through an air inlet pipe.

10. A refrigeration apparatus, characterized by comprising a compressor according to claim 9.